JP2012242562A - Endoscope system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endoscope system having such a configuration that a jig can be brought into contact with a level difference from an unspecified direction by remote control to easily and simply measure a depth of the level difference within an observation field of view of an endoscope.SOLUTION: The endoscope system includes a jig 1 having a shaft member 2 and a turning member 3, and an endoscope 50 for observing at least the jig 1. After the turning member 3 is fitted into a concave portion, the shaft member 2 is brought into contact with a top surface of a pipe member 10 if the depth of the concave portion is equal to or greater than a thickness of the turning member 3, but the shaft member 2 is not brought into contact with the top surface of the pipe member 10 if the depth of the concave portion is smaller than the thickness of the turning member 3. The endoscope 50 observes at least whether the shaft member 2 is brought into contact with the top surface of the pipe member 10 after the turning member 3 is fitted into the concave portion.

Description

  The present invention relates to an endoscope system including a jig for measuring a depth of a step of a measurement object and an endoscope.

  2. Description of the Related Art Conventionally, a configuration in which a depth of a step of a measurement object and an interval between steps are measured by remote control using an endoscope system including a jig and an endoscope.

  For example, in Patent Document 1, a gap measurement sensor is provided at the tip of a flexible arm serving as a jig, and in the observation field of view of the endoscope, the gap measurement sensor is vertically brought into contact with the bottom surface of the step of the measurement object. A configuration of an endoscope system that measures the depth of a step by remote control by measuring the height of the step is disclosed.

  In Patent Document 2, a spring-shaped strain gauge type gap sensor is provided on the distal end side of an arm serving as a measurement jig, and the gap sensor is inserted between measurement objects in the observation field of the endoscope. Thus, a configuration of an endoscope system that measures a distance between measurement objects by remote operation from sensor distortion is disclosed.

  Further, in Patent Document 3, a laser beam is irradiated on a measurement object from a laser beam generator serving as a measurement jig in an observation field using a camera and displayed on an observation image captured by the camera. A configuration of a system for determining the shape of a laser beam and measuring a distance between measurement objects by remote control is disclosed.

Japanese Patent Laid-Open No. 10-239040 JP-A-4-104004 JP-A-5-34490

  However, in the configuration disclosed in Patent Document 1, since the abutting direction of the gap measurement sensor with respect to the bottom surface of the step of the measurement object is limited to the vertical direction, the inside of the measurement object having a complicated shape of the step. In the case of being located at a place where it enters, there is a problem that the gap measurement sensor cannot be abutted perpendicularly or difficult to abut against the bottom surface of the step by remote control. This problem is the same even when the depth of the step is measured using the gap sensor disclosed in Patent Document 2.

  Further, even when the configuration disclosed in Patent Document 3 is applied to measure the depth of a step, if the step is located in a measurement object having a complicated shape, the step On the other hand, there is a problem that it is difficult to measure the depth of the step because the laser beam is difficult to irradiate.

  Furthermore, in the configurations of Patent Documents 1 to 3, is the configuration for measuring the depth of the step complicated, does not require an accurate value of the depth of the step, and is the depth of the step formed at the set depth? In the case of performing only the work to confirm whether or not, a configuration that can more easily measure the depth of the step has been desired.

  The present invention has been made in view of the above problems and circumstances, and can easily contact a jig from an unspecified direction with respect to a step by remote control within an observation field of an endoscope. An object of the present invention is to provide an endoscope system having a configuration capable of easily measuring the step depth.

  In order to achieve the above object, an endoscope system according to an aspect of the present invention includes a shaft member that is at least partially in contact with a reference surface of a measurement object, and a recess that is recessed with respect to the reference surface of the measurement object. And a convex portion protruding from the shaft member at the same height as the set depth, which is freely engageable with the formed step, and is freely contactable with a bottom surface located at a set depth from the reference surface. A jig, and an endoscope for observing at least the jig, and the shaft member has a depth equal to or higher than the height of the convex portion after the convex portion is inserted into the step. The endoscope is in non-contact with the reference surface when contacting the reference surface and the depth of the step is smaller than the height of the projection, and the endoscope has at least the reference surface after the projection is inserted into the step. Observe for contact of shaft member to

  According to the present invention, the jig can be brought into contact with the step from an unspecified direction by remote control within the observation visual field of the endoscope, and the step depth can be easily and easily measured. An endoscope system having the configuration can be provided.

The partial perspective view which shows the endoscope system of 1st Embodiment with a pipe member and a holding member Sectional view of jig and recess along line II-II in Fig. 1 The perspective view which shows the front end side of the insertion direction of the jig | tool in FIG. The partial perspective view which shows schematically the state by which the pulling member is connected to the end of the extension direction of the shaft member in the jig | tool of FIG. FIG. 4 is a partial perspective view schematically showing a state where the extending direction of the shaft member is changed by pulling the pulling member of FIG. 4. 1 is a partial perspective view showing a configuration in which a plurality of members having different diameters can be attached to and detached from one end and the other end of the shaft member of the jig in FIG. 1 together with an insertion portion of an endoscope. Sectional drawing of a shaft member, a rotation member, and a recessed part after the member from which a diameter differs is mounted | worn with the shaft member of FIG. FIG. 1 is a partial perspective view schematically showing a configuration in which the shaft member in the jig of FIG. 1 can expand and contract in the extending direction. The partial perspective view which shows the structure of the endoscope system which detects the depth and inclination of a recessed part using the observation lens provided in two rotation members. The partial perspective view which shows the structure of the endoscope system which measures the depth of a recessed part using the laser beam irradiation part provided in two rotation members. The side view which looked at the rotation member of FIG. 10 from the XI direction in FIG. Partial perspective view which shows the modification which comprised the convex part of the jig | tool from the hemispherical member The fragmentary perspective view which shows the state which made the U-shaped board | plate material by which the front-end | tip bent from the front-end | tip opening of the pipe member protruded ahead of the insertion direction The figure which shows the cross section of the jig | tool along the XIV-XIV line in FIG. 13 with a pipe member. The figure which shows the modification which comprised the board | plate material of FIG. 13 from two board | plate materials which can be opened and closed in the open state and closed state of a board | plate material. The perspective view which shows partially the jig | tool of the endoscope system of 2nd Embodiment. Partially exploded perspective view of a jig in the endoscope system of the third embodiment Sectional drawing which shows the state which the convex part isolate | separated from the shaft member after the convex part of a jig | tool inserted in a recessed part. Sectional drawing which shows the state with a convex part contacting the shaft member after the convex part of a jig | tool fits into a recessed part. The figure which shows the modification which provided the jig | tool in the outer peripheral side surface of the insertion part of an endoscope The partial perspective view which shows the guide member through which the insertion part and jig | tool of an endoscope are penetrated with a holding member and a pipe member in the state which took out the jig | tool from the guide member The figure which shows the state which rotated the shaft member of the jig | tool of FIG. 21 90 degrees. The fragmentary perspective view which shows the modification of a structure of the guide member of FIG. 20 with a pipe member and a holding member. Cross-sectional view of jig and recess along IIXIV-IIXIV line in FIG. The perspective view which shows the modification of the guide member which observes the parameter | index of a holding member using the camera provided in the guide member. The partial perspective view which shows the structure of the modification of the guide member which measures the depth of a recessed part using the laser beam irradiated from a guide member with an endoscope, a holding member, and a pipe member. 26 is a cross-sectional view of the guide member and the recess along the line IIXVII-IIXVII in FIG. The partial perspective view which looked at the laser irradiated to the pipe member and holding member of FIG. 26 from the IIXVII direction in FIG. The perspective view which shows the structure of the modification of the endoscope system which measures the depth of a recessed part using a strain gauge. The partial perspective view which shows the state by which the extending direction of the shaft member was changed by the bent metal core 29 is a cross-sectional view showing a state in which the convex portion of the shaft member in FIG. 29 is fitted in the concave portion. The figure which shows the modification of the shaft member of the jig | tool of FIG. Sectional drawing which shows the state which inserted the flange part of FIG. 32 in the recessed part.

  Embodiments of the present invention will be described below with reference to the drawings. In the embodiment described below, the measurement object is exemplified by the pipe member 10, and the step is exemplified by the concave portion D formed by the two pipe members 10 and the holding member 11. .

(First embodiment)
FIG. 1 is a partial perspective view showing the endoscope system of the present embodiment together with a pipe member and a holding member, FIG. 2 is a sectional view of a jig and a recess along the line II-II in FIG. FIG. 2 is a perspective view showing a distal end side in the insertion direction of the jig in FIG. 1.

  As shown in FIG. 1, the endoscope system 100 includes a jig 1 and an endoscope 50 that observes at least the jig 1.

  As shown in FIGS. 1 to 3, the jig 1 includes a shaft member 2, a rotating member 3 that is a convex portion, a spring member 4, a pipe 5, and a wire 6, and a main portion is configured. Has been.

  The jig 1 includes a spring member 4, a pipe 5, and a wire 6 with respect to a channel 58 (see FIG. 6), which will be described later, provided in the insertion portion 50a of the endoscope 50, and the distal end of the distal end portion 50as of the insertion portion 50a. Through the opening of the channel 58 provided on the surface, it can be inserted from the front in the insertion direction S. After insertion, at least the shaft member 2 and the rotating member 3 are inserted in the insertion direction S from the opening of the channel 58. It is located so as to protrude forward (hereinafter simply referred to as the front).

  FIG. 1 shows a state in which the spring member 4 protrudes forward from the opening of the channel 58 in addition to the shaft member 2 and the rotating member 3.

  The shaft member 2 is formed in an elongated shape along the direction R from a columnar or cylindrical member. As shown in FIGS. 1 and 2, the shaft member 2 is formed on a top surface 10 c serving as a reference surface of the two pipe members 10. , At least a part is freely accessible. The shape of the shaft member 2 is not limited to a columnar shape or a cylindrical shape.

  The rotating member 3 is a member that has a thickness a in the height direction H and is rotatable with respect to the outer periphery of a substantially central portion in the direction R of the shaft member 2, and is composed of, for example, a bearing. That is, the rotating member 3 protrudes from the outer periphery of the shaft member 2 in the height direction H by the height a. The wall thickness a is set to a size that matches a set depth W of a recess D described later.

  1 to 3, two rotating members 3 are provided with a set interval in the direction R, but one rotating member 3 may be provided. Further, the interval between the two rotating members 3 in the direction R is set to be narrower than the interval between the two pipe members 10 in the direction R, that is, the interval between the recesses D.

  The rotating member 3 can be fitted into a recess D formed to be recessed with respect to the top surfaces 10c of the two pipe members 10, and the outer peripheral surface 3t constituting the top contacts the bottom surface 11tj of the recess D. It is free.

  The concave portion D includes two pipe members 10 and a plate-shaped holding member 11 having a curved shape in which the bottom portion 11t is positioned lower in the height direction H than the top surface 10c between the two pipe members 10 in the direction R. It is comprised by.

  Further, the upper surface 11tj of the bottom portion 11t of the holding member 11 is positioned to be recessed by a set depth W from the top surface 10c. That is, the upper surface 11tj of the bottom portion 11t constitutes the bottom surface of the recess D.

  In FIG. 2, when the set depth W = the thickness a of the rotating member 3, the outer peripheral surface 3 t of the rotating member 3 comes into contact with the bottom surface 11 tj of the recess D and the shaft member 2 is connected to the pipe member 10. The figure which contacts the top surface 10c is shown.

  The spring member 4 is composed of an elongated coil-shaped member along the insertion direction S, and a distal end (hereinafter simply referred to as a distal end) of the insertion direction S that is one end is, for example, between the rotating members 3 of the shaft member 2. It is connected to the.

  The distal end of the pipe 5 is fixed to the proximal end in the insertion direction S (hereinafter simply referred to as the proximal end), which is the other end of the spring member 4.

  The proximal end of the pipe 5 is positioned so as to be exposed to the outside of the endoscope 50 from the entrance of a channel 58 provided in the operation unit of the endoscope 50.

  Note that the pipe 5 is not always necessary. When the concave portion D is formed in a complicated place, the spring member is used instead of the pipe 5 in order to improve the fitting property of the rotating member 3 into the concave portion D. 4 may be formed in such a length that the proximal end of the spring member 4 is exposed to the outside of the endoscope 50 from the entrance of the channel 58.

  A wire 6 or a rod (which can be bent like a fiber rod) is inserted into the spring member 4 and the pipe 5. The distal end of the wire 6 is fixed to the shaft member 2, and the proximal end is exposed from the entrance of the channel 58 to the outside of the endoscope 50.

  Note that the wire 6 is movable back and forth in the insertion direction S relative to the spring member 4 and the pipe 5.

  Since the spring member 4 is bendable, the rotating member 3 can be easily fitted into the recess D by remote operation from an unspecified direction.

  When the pipe 5 and the wire 6 are pushed forward from the base end side, the rotating member 3 and the shaft member 2 are moved so that the rotating member 3 is fitted into the recess D. Therefore, as described above, when the spring member 4 is formed in such a length that the proximal end of the spring member 4 is exposed from the entrance of the channel 58 to the outside of the endoscope 50 instead of the pipe 5, When the member 4 is pushed forward together with the wire 6 from the base end side, a member that moves the rotating member 3 and the shaft member 2 is configured so that the rotating member 3 is fitted into the recess D.

  The wire 6 is pushed forward from the base end side in a state where the position of the base end of the pipe 5 is fixed, thereby extending the spring member 4 in the insertion direction S, so that the length of the spring member 4 in the insertion direction S is increased. It has a function to change the height. This is effective when the position is finely adjusted in the longitudinal direction.

  The endoscope 50 uses the objective lens 55 (see FIG. 6) provided on the distal end surface of the distal end portion 50as of the insertion portion 50a to check whether or not the shaft member 2 is in contact with the top surfaces 10c of at least two pipe members 10. Is to observe.

Next, the operation of the present embodiment will be described.
First, when measuring whether or not the depth of the recess D is the set depth W, the user pushes in the proximal end side of the pipe 5 and the wire 6, so that the distal end of the channel 58 of the endoscope 50 is opened. The outer peripheral surface 3t of the rotating member 3 of the jig 1 protruded forward is moved in the state of contact with the upper surface 11j of the holding member 11 by remote control within the observation field of the endoscope 50, and then Insert into the recess D. The turning member 3 may be inserted into the recess D by pushing the proximal end side of the insertion portion 50a of the endoscope 50 forward without moving the jig 1.

  At this time, since the spring member 4 protruding forward from the front end opening of the channel 58 can be bent, the front end side of the jig 1 can be bent. However, it becomes easy to insert the rotating member 3 into the recess D from an unspecified direction by remote operation.

  After the rotation member 3 is inserted into the recess D, when the depth of the recess D is equal to or greater than the thickness a of the rotation member 3, the shaft member 2 contacts the top surface 10c. On the other hand, when the depth of the recess D is greater than the thickness a, the outer peripheral surface 3t of the rotating member 3 is not in contact with the bottom surface 11tj.

  By observing the contact of the shaft member 2 with the top surface 10 c with the objective lens 55 of the endoscope 50, the user can set the depth of the recess D equal to the thickness a of the rotating member 3. That is, it can be easily visually confirmed by the endoscope that the bottom portion 11t of the holding member 11 is fixed to a depth that causes no problem in order to suppress vibration of the pipe member 10.

  Note that when the shaft member 2 comes into contact with the top surface 10 c, the user also receives vibration transmitted from the spring member 4, the pipe 5, and the wire 6 to the user who holds the proximal end side of the pipe 5 and the wire 6. The contact of the shaft member 2 to the top surface 10c can be recognized sensuously, and the depth of the recess D can be easily determined by the endoscope to be equal to or greater than the set depth W equal to the thickness a of the rotating member 3. Can be recognized.

  On the other hand, when the depth of the recess D is smaller than the thickness a of the rotating member 3, the shaft member 2 is not in contact with the top surface 10c. When the depth of the recess D is equal to or less than the thickness a, the outer peripheral surface 3t is in contact with the bottom surface 11tj.

  By observing the non-contact of the shaft member 2 to the top surface 10 c with the objective lens 55 of the endoscope 50, the user can set the depth of the recess D equal to the thickness a of the rotating member 3. It can be easily visually recognized that it is smaller than the length W.

  In the present embodiment, after the rotation member 3 is fitted into the recess D, the depth of the recess D is determined by observing the shaft member 2 with the top surface 10c of the pipe member 10 with the endoscope 50. Can be recognized whether or not is the set depth W.

  According to this, the user can observe the presence or absence of the contact of the shaft member 2 with respect to the top surface 10 c using the endoscope 50.

  Moreover, in this Embodiment, it showed that the spring member 4 was provided between the shaft member 2 and the pipe 5 to which this shaft member 2 is moved.

  According to this, since the spring member 4 is bendable, even if the spring member 4 is located at the place where the concave portion D enters, the rotating member 3 is inserted into the concave portion D by remote control from an unspecified direction. It becomes easy to make.

  From the above, in the observation visual field of the endoscope 50, the jig 1 can be brought into contact with the step from an unspecified direction by remote control, and the step depth can be measured easily and easily. Can be provided.

  Hereinafter, modifications will be described. In the present embodiment, whether or not the depth of the recess D is set to be equal to or greater than the set depth W by observing whether or not the shaft member 2 is in contact with the top surface 10c of the pipe member 10 with the endoscope 50. It was shown to make the user recognize.

  Not limited to this, the user determines whether or not the depth of the recess D is set larger than the set depth W depending on whether or not the outer peripheral surface 3t of the rotating member 3 is in contact with the bottom surface 11tj of the bottom 11t of the holding member 11. You may be allowed to recognize.

  Specifically, after the rotation member 3 is inserted into the recess D, when the depth of the recess D is larger than the wall thickness a of the rotation member 3, the upper surface 11j of the holding member 11 is in contact. The outer peripheral surface 3 t of the rotating member 3 is not in contact with the holding member 11. That is, the outer peripheral surface 3t of the rotating member 3 is not in contact with the bottom surface 11tj of the recess D.

  By observing the state where the outer peripheral surface 3t of the rotating member 3 is not in contact with the bottom surface 11tj with the objective lens 55 of the endoscope 50, the user can determine that the depth of the concave portion D is the thickness of the rotating member 3. It can be easily visually recognized by the endoscope that it is larger than the set depth W equal to the thickness a.

  The outer peripheral surface 3t of the rotating member 3 that has been in contact with the upper surface 11j of the holding member 11 is not in contact with the bottom surface 11tj after being fitted into the recess D, so that the spring member 4, the pipe 5 and the wire 6 are interposed. By gripping the proximal end sides of the pipe 5 and the wire 6, the outer peripheral surface 3 t of the rotating member 3 is brought into contact with the upper surface 11 j of the holding member 11 to be transmitted, and the outer peripheral surface of the rotating member 3 to the bottom surface 11 tj. The non-contact of 3t can be recognized sensuously, and it can be easily recognized that the depth of the recess D is larger than the set depth W equal to the wall thickness a of the rotating member 3.

  A modification will be described below with reference to FIGS. 4 and 5. 4 is a partial perspective view schematically showing a state in which the pulling member is connected to one end in the extending direction of the shaft member in the jig of FIG. 1, and FIG. 5 is a drawing of the pulling member of FIG. It is a fragmentary perspective view which shows roughly the state which changed the extending direction of the shaft member.

  As shown in FIG. 4, one end of the wire 8 that is a pulling member may be connected to one end in the direction R of the shaft member 2. The wire 8 may be connected to the other end in the direction R of the shaft member 2.

  According to such a configuration, when the wire 8 is pulled backward, as shown in FIG. 4, the shaft member 2 extending along the direction R is bent by the spring member 4 as shown in FIG. Accordingly, it extends along the insertion direction S.

  From this, the length of the shaft member 2 in the direction R becomes smaller after towing (R2 <R1), so that the shaft member 2 and the rotating member 3 can easily enter the space having a narrow interval in the direction R. .

  Furthermore, since the extending direction of the shaft member 2 can be freely varied between 0 ° and 90 ° in accordance with the pulling amount of the wire 8, the shaft between the measurement objects having complicated shapes can be provided. It becomes easy to let the member and the rotation member 3 enter from an unspecified direction. Other effects are the same as those of the first embodiment described above.

  Hereinafter, another modification will be described with reference to FIGS. 6 is a partial perspective view showing a configuration in which a plurality of members having different diameters are detachably attached to one end and the other end in the extending direction of the shaft member of the jig of FIG. 1 together with the insertion portion of the endoscope. 7 is a cross-sectional view of the shaft member, the rotating member, and the recess after the members having different diameters are mounted on the shaft member of FIG. 6.

As shown in FIG. 6, female screw portions 3 f are formed at one end and the other end in the direction R of the shaft member 2, and the male screw portions 9 m of a plurality of members 9 and 9 ′ having different diameters b are formed on the female screw portion 3 f. Can be screwed so that a plurality of members 9 and 9 ′ having different diameters b can be attached to and detached from one end and the other end in the direction R of the shaft member 2.
This corresponds to various dimensions by exchanging according to the depth of the concave portion D to be measured.

  The members 9 and 9 'mounted on one end and the other end of the shaft member 2 have the same diameter. Further, as shown in FIG. 7A, the member 9 has a shaft member when the rotating member 3 is fitted in the recess D and the depth of the recess D is set to be shallower than that in FIG. In the state where the member 9 thicker than 2 is attached and in contact with the top surface 10c of the pipe member 10 or the bottom portion 11tj of the holding member 11, it is determined whether the set value is larger or smaller than W ′. Furthermore, as shown in FIG. 7B, when a member 9 'thinner than the shaft member 2 is mounted, the set value is W "deeper than W".

According to such a configuration, the outer peripheral surface of the rotating member 3 with respect to the bottom surface 11tj of the bottom portion 11t of the holding member 11 only by changing the diameter b of the member 9 attached to one end and the other end of the shaft member 2 in the direction R. Since the contact height of 3t can be varied, it is possible to easily measure the set depth W of different sizes only by changing the member 9 having a different diameter b. Specifically, the top surface 10c
And whether the depth of the bottom surface 11tj is equal to or greater than the set depths W1, W2, W3, W4..., By simply changing the member 9 having a different diameter b selected according to the set depth. be able to.

  Of course, the set depth W of a different size may be measured by changing the thickness a of the rotating member 3. Other effects are the same as those of the first embodiment described above.

  Hereinafter, another modification will be described with reference to FIG. FIG. 8 is a partial perspective view schematically showing a configuration in which the shaft member in the jig of FIG. 1 can be expanded and contracted in the extending direction.

  As shown in FIG. 8, the shaft member 2 may be configured to be extendable and contractible in the direction R. Specifically, when the air supply tubes 22 and 23 are connected to one end and the other end in the direction R of the shaft member 2 and air is supplied from the air supply tube 22 to the shaft member 2, the shaft member 2 expands in the direction R. However, when air is supplied from the air supply tube 23 to the shaft member 2, the shaft member 2 may contract in the direction R.

  According to such a configuration, since the length of the shaft member 2 in the direction R can be varied, the shaft member 2 can be easily entered even in a narrow space in the direction R, and a large interval in the direction R. The shaft member 2 can also be reliably brought into contact with the top surface 10c of the pipe member 10 having the above. Other effects are the same as those of the first embodiment described above.

  Hereinafter, another modification will be described with reference to FIG. FIG. 9 is a partial perspective view showing the configuration of an endoscope system that detects the depth and inclination of the recesses using observation lenses provided on two rotating members.

  In the present embodiment described above, when the rotating member 3 is inserted into the recess D, the depth of the recess D is equal to or greater than the set depth W by observing whether the shaft member 2 is in contact with the top surface 10c. Whether or not to measure.

  Not only this but the structure which measures the depth of the recessed part D with two observation lenses provided in the jig | tool may be sufficient.

  Specifically, as shown in FIG. 9, in a jig detachable from the distal end surface of the distal end portion 50as of the endoscope 50 having the objective lenses 52 and 53 on the distal end surface of the distal end portion 50as of the insertion portion 50a, The rotation member 3 is provided at one end and the other end in the direction R of the member 2, and an observation lens 25 for observing the Ri direction in the direction R at the side opening along the direction S of each rotation member 3, An observation lens 26 for observing the Rt direction opposite to the Ri direction in the direction R is provided.

  The objective lens 52 is mounted with a jig on the tip surface, and after the rotation member 3 is fitted in the recess D, the image in the Ri direction in the recess D is observed through the observation lens 25.

  The objective lens 53 is mounted with a jig on the tip surface, and after the rotation member 3 is inserted into the recess D, the image in the Rt direction in the recess D is observed through the observation lens 26.

  Therefore, the two images observed by the objective lenses 52 and 53 are displayed on a display unit (not shown) as images in which the top surfaces 10c of the two pipe members 10 are set in advance according to the depth of the recess D. . The user can easily visually recognize from the two images displayed on the display unit whether or not the depth of the recess D is equal to or greater than the set depth W by the position of the top surface 10c. In addition, in the two images displayed on the display unit, when the position of the top surface 10c is displayed below a predetermined position, or when only the wall surface of the recess is displayed, the user sets the depth of the recess D to the set depth. It can be easily visually recognized by the endoscope that the height is W or more.

Furthermore, the user can easily visually recognize whether or not the bottom surface 11tj is inclined by checking whether or not the positions of the two top surfaces 10c of each image are shifted from the two images. .
If there is a difference between the two images in the same position, it can be determined that an accurate inspection is not performed because the bottom surface is inclined.
In addition, as described above, even if two images are not displayed on one screen, the inclination or the accurate inspection is not performed by comparing and calculating the inclination of both images using image processing. A warning may be displayed when it is determined that this is the case.

  Hereinafter, another modification will be described with reference to FIGS. 10 and 11. FIG. 10 is a partial perspective view showing the configuration of an endoscope system that measures the depth of the recesses using the laser beam irradiating units provided on the two rotating members, and FIG. 11 is the rotating member of FIG. It is the side view seen from the XI direction in FIG.

  In the present embodiment described above, when the rotating member 3 is inserted into the recess D, the depth of the recess D is set to the set depth W by observing whether the shaft member 2 is in contact with the top surface 10c. It was shown to measure whether or not.

  Not only this but the structure which measures the depth of the recessed part D by two laser beam irradiation parts provided in the jig | tool may be sufficient.

  Specifically, as shown in FIG. 10, the rotation members 3 are respectively provided at one end and the other end in the direction R of the shaft member 2, and the center of the side surface along the insertion direction S of each rotation member 3. Further, a laser beam irradiation unit 27 is provided respectively. As shown in FIG. 11, the laser beam irradiation unit 27 is located at a distance c from the outer peripheral edge of the rotating member 3. Further, the distance c coincides with the set depth W.

  A supply fiber 59 for supplying visible laser light to the laser light irradiation unit 27 is inserted into the shaft member 2, the spring member 4, and the pipe 5. The laser beam irradiation unit 27 supplies the laser beam in the Rt direction opposite to the Ri direction and the Ri direction in the direction R.

  According to such a configuration, when the rotating member 3 is inserted into the recess D and the laser beam is irradiated from the laser beam irradiation unit 27, if the depth of the recess D is greater than the distance c, the laser Since the light is irradiated on the side surface of the pipe member 10, the depth of the recess D is determined from the set depth W by observing the laser light irradiated on the pipe member 10 with the objective lens 55 of the endoscope 50. The user can easily recognize that it is larger.

  On the other hand, if the depth of the concave portion D is smaller than the distance c, the laser beam is not irradiated to the pipe member 10, and thus the depth of the concave portion D is observed by observing this with the objective lens 55 of the endoscope 50. The user can easily recognize that is smaller than the set depth W.

  Hereinafter, another modification will be described with reference to FIG. FIG. 12 is a partial perspective view showing a modification in which the convex portion of the jig is formed of a hemispherical member.

  In the present embodiment described above, the convex portion that protrudes from the shaft member 2 in the height direction H by the set height a is shown as the rotating member 3, but this is not limiting, and as shown in FIG. In addition, the convex portion may be a member 43 that protrudes in a hemispherical shape from the bottom surface of the shaft member 42 in the height direction H, and may be a member having another shape.

  In the configuration shown in FIG. 12, an L-shaped member 40 that is elongated along the insertion direction S at the substantially central portion in the direction R of the shaft member 42 and the tip is bent upward in the height direction H. The tip of is fixed. The shape of the upper side of the L-shaped member 40 is such that the upper pipe is arranged in the horizontal direction in consideration of use in an environment in which similar pipes are arranged on the upper side of the pipe to be inspected (not shown). For positioning (regulation in the lateral direction). Further, the shaft member 42 is rotatably connected to the tip of the L-shaped member.

  Further, the ends of the two pulling wires 41 are connected to one end and the other end in the direction R of the shaft member 42, respectively, and when one of the pulling wires 41 is pulled, the shaft member 42 is It is freely rotatable between 0 ° and 90 °.

  According to this, as in FIGS. 4 and 5 described above, the length of the shaft member 42 in the direction R becomes smaller when one of the wires 41 is pulled until the shaft member 42 rotates 90 °. Therefore, the shaft member 42 and the rotating member 43 can be easily entered into a space having a narrow interval in the direction R.

  Furthermore, since the extending direction of the shaft member 42 can be freely varied between 0 ° and 90 ° in accordance with the pulling amount of the pulling wire 41, between the measurement objects having complicated shapes, It becomes easy to make the shaft member 42 and the rotation member 43 enter from an unspecified direction. Other effects are the same as those of the first embodiment described above.

  In addition, as a structure which varies the width | variety in the direction R of the shaft member 2, the structure shown in FIGS. 13-15 is also mentioned.

  13 is a partial perspective view showing a state in which a U-shaped plate member whose tip is bent from the tip opening of the pipe member is protruded forward in the insertion direction, and FIG. 14 is along the line XIV-XIV in FIG. The figure which shows the cross section of a jig | tool with a pipe member, FIG. 15 is a figure which shows the modification which comprised the board | plate material of FIG. 13 from two board | plate materials which can be opened and closed in the open state and closed state of a board | plate material. .

  As shown in FIG. 13, the jig can be inserted into the elongated pipe member 45 along the insertion direction S having a thickness a in the height direction H, and the pipe member 45. You may comprise from the U-shaped board | plate material 46 by which the front-end | tip protruding from the front-end | tip opening was bent.

  As shown in FIG. 14, the pipe member 45 constitutes a portion that is inserted into the recess D. In FIG. 14, the set depth W of the recess D is a diagram in which the pipe member 45 matches the wall thickness a.

  The plate member 46 is configured to expand in the direction R as shown by the dotted line in FIG. 13 when the base end side is pulled, and when the pipe member 45 is inserted into the recess D, the plate member 46 expands in the direction R. The top surface 10c of the pipe member 10 can be freely contacted.

  That is, the plate material 46 corresponds to the shaft member 2 of the present embodiment, and when confirming whether or not the recess D has the set depth W, the plate material 46 is brought into contact with the top surface 10c. The user may observe using the endoscope 50.

  According to such a configuration, when the jig is inserted into the recess D located in a space having a narrow interval in the direction R, the width in the direction R of the plate member 46 is set to be a pipe as shown by the solid line in FIG. Since it is smaller than the member 45, it can be easily inserted, and when measuring the depth of the recess D, as shown by the dotted line in FIG. The top surface 10c can be contacted. Other effects are the same as those of the first embodiment described above.

  As shown in FIG. 15, the plate material is not limited to the U shape, and may be composed of two plate materials 48.

  The two plate members 48 are inserted into the pipe member 45, and are opened in the direction R by a link mechanism or the like in a state in which the front end sides of the two plate members 48 protrude forward from the tip opening of the pipe member 45. It is free. In addition, after opening, each board | plate material is freely contactable with the top surface 10c of the pipe member 10 similarly to the board | plate material 46 mentioned above.

Also in the configuration of the jig shown in FIG. 15, the same effect as that of the configuration of the jig shown in FIGS. 13 and 14 can be obtained.
Hereinafter, a modification of FIG. 1 will be described with reference to FIGS. 32 and 33. 32 is a view showing a modification of the shaft member of the jig of FIG. 1, and FIG. 33 is a cross-sectional view showing a state in which the flange portion of FIG. 32 is fitted in the recess.
As a modification of FIG. 1, the shaft member 2 may be as shown in FIGS. 32 and 33. As shown in FIGS. 32 and 33, the shaft member 2 may be provided with two flange portions 3 ′. The width in the direction R of the two flange portions 3 ′ is slightly wider than the width B of the holding member 11 by ΔB so that the two flange portions 3 ′ can slide as the holding member 11. B + ΔB.
Furthermore, the width 1 in the direction R of the shaft member 2 may be shortened, and the shaft member 2 may be brought into contact at the ends Q and Q ′ instead of being brought into contact with the top portion 10 c of the pipe member 10. In this case, the size of the jig 1 can be made compact.
Further, in such a configuration, when the depth of the recess D is deeper (larger) than the set value W, a gap is generated between the holding member 11 and the shaft member 2, and when the depth is equal to or less than the set W, there is no gap. It becomes.

(Second Embodiment)
FIG. 16 is a perspective view partially showing a jig of the endoscope system of the present embodiment.
The configuration of the endoscope system according to the second embodiment is different from the endoscope system according to the first embodiment shown in FIGS. The difference is that the rotating part contacts the top surface of the pipe member. Therefore, only this difference will be described, the same reference numerals are given to the same components as those in the first embodiment, and the description thereof will be omitted.

  As shown in FIG. 16, in the present embodiment, in the jig 1, the shaft member 2 is provided with the non-rotating portion 2 a provided with the rotating member 3 and connected with the tip of the spring member 4. A main portion is configured by including a rotating portion 2b that is rotatable with respect to the moving portion 2a and positioned at one end and the other end side in the direction R of the shaft member 2, respectively.

  The rotating portion 2b is freely contactable with the top surface 10c of the pipe member 10 after the rotating member 3 is fitted into the recess D, and a positioning index 2bs is formed on the outer peripheral surface. A positioning index 2as is also provided on the outer periphery of a portion of the non-rotating portion 2a adjacent to the rotating portion 2b. Further, normally, the positioning index 2as and the positioning index 2bs are rotatable in a free state, and are in a state where they are aligned before entering the recess D.

  According to such a configuration, after the turning member 3 is fitted into the recess D, on the other hand, when the depth of the recess D is equal to or greater than the set depth W, the turning portion 2b is the top surface 10c of the pipe member 10. To touch. In this contact state, when the jig is moved forward, the rotating portion 2b rotates while being in contact with the top surface 10c, so that the positioning index 2as is shifted from the positioning index 2bs.

  On the other hand, when the depth of the concave portion D is smaller than the set depth W, the rotating portion 2b is not in contact with the top surface 10c and does not rotate, so that the positioning index 2as deviates from the positioning index 2bs. There is no.

  Therefore, the user can easily visually recognize whether or not the depth of the recess D is equal to or greater than the set depth W by observing the displacement of the positioning index 2as with respect to the positioning index 2bs with the endoscope 50. Other effects are the same as those of the first embodiment described above.

(Third embodiment)
FIG. 17 is a partially exploded perspective view of the jig in the endoscope system of the present embodiment, and FIG. 18 is a cross-sectional view showing a state where the convex portion is separated from the shaft member after the convex portion of the jig is fitted into the concave portion. FIG. 19 is a cross-sectional view showing a state where the convex portion of the jig remains in contact with the shaft member after the convex portion of the jig is fitted in the concave portion.

  In the configuration of the endoscope system according to the third embodiment, the convex portion is separated from the shaft member as compared with the endoscope system according to the first embodiment shown in FIGS. 1 to 3 described above. The point is different. Therefore, only this difference will be described, the same reference numerals are given to the same components as those in the first embodiment, and the description thereof will be omitted.

  As shown in FIG. 17, in the jig in the endoscope system of the present embodiment, the convex portion 33 is separable from the shaft member 32.

  Specifically, the shaft member 32 and the convex portion 33 are made of, for example, a magnet, and the convex portion 33 is attached to the shaft member 32 by a magnetic force.

  Note that the thickness a in the height direction H of the convex portion 33 coincides with the set depth W. Further, the tip of the spring member 4 is connected to the shaft member 32 as in the first embodiment described above. The tip of a spring member 34 having a function similar to that of the spring member 4 is also connected to the convex portion 33, and the tip of a pipe 35 having the same function as the pipe 5 is fixed to the base end of the spring member 34. Has been. Further, although not shown, a wire is inserted into the spring member 34 and the pipe 35, and the tip of the wire is fixed to the shaft member 32.

  According to such a configuration, after the convex portion 33 is fitted into the concave portion D, the depth H1 of the concave portion D is equal to or greater than the set depth W, that is, as shown in FIG. When the thickness is greater than or equal to a (H1 ≧ a), the shaft member 32 comes into contact with the top surface 10c of the pipe member 10 as the shaft member 32 and the convex portion 33 are moved forward. By receiving the resistance, the projection 33 is separated from the shaft member 32. In particular, when the depth H <b> 1 is larger than the wall thickness a, a gap K is generated between the shaft member 32 and the convex portion 33 with the separation of the convex portion 33.

  On the other hand, as shown in FIG. 19, when the depth H2 of the concave portion D is smaller than the set depth W, that is, smaller than the wall thickness a of the convex portion 33 (H2 <a), the shaft member 32 is a pipe. While not contacting the top surface 10 c of the member 10, the convex portion 33 remains attached to the shaft member 32 due to the magnetic force.

Therefore, the user can easily visually recognize whether or not the depth of the concave portion D is equal to or greater than the set depth W only by observing whether the convex portion 33 is separated from the shaft member 32 using the endoscope 50. Can do. Other effects are the same as those of the first embodiment described above.
Furthermore, a sensor that not only visually recognizes but also detects that the magnet has been separated, such as a displacement meter (coil, laser sensor, etc.) that measures the interval between magnets, or a sensor that can confirm the presence or absence of contact by passing an electric current. It may be provided.

  Hereinafter, a modification will be described with reference to FIG. FIG. 20 is a diagram illustrating a modification in which a jig is provided on the outer peripheral side surface of the insertion portion of the endoscope.

  In the first to third embodiments described above, the jig 1 can be inserted into the channel 58 provided in the insertion portion 50a of the endoscope 50, and forward from the opening at the tip of the channel 58. It has been shown that the depth of the concave portion D is measured using the protruding shaft members 2 and 32, the rotating member 3 and the convex portion 33.

  Not only this, but as shown in FIG. 20, the jig 1 is fixed to the outer peripheral side surface of the insertion portion 50 a of the endoscope 50 together with a centering member 51 that positions the insertion portion 50 a at the center of the duct 55. It does not matter.

  In the configuration shown in FIG. 20, one end of the jig 1 is connected to the shaft member 2, the rotating member 3 provided on the shaft member 2, and the outer peripheral side surface of the insertion portion 50 a of the endoscope 50. The main part is comprised including the urging member 20 that urges the rotating member 30 whose other end is connected to the shaft member 2 to the inner peripheral surface 55 n of the pipe 55. The urging member 20 includes an air cylinder, a spring, and the like.

  According to such a configuration, after inserting the insertion portion 50a of the endoscope 50 into the duct 55, the insertion portion 50a is rotated in a state where the centering member 51 and the rotation member 3 are in contact with the inner peripheral surface 55n. In this case, if the recess U is formed on the inner peripheral surface 55n, the rotating member 3 comes into contact with the bottom surface of the recess U. At this time, the recess U has a set depth of the thickness a of the rotating member 3. Is equal to or greater than the set depth, the shaft member 2 contacts the inner peripheral surface 55n other than the recess U.

  From this, the user can easily recognize that the dent U is greater than the set depth from the sense that the shaft member 2 is in contact with the inner peripheral surface 55n, and the large dent U is formed on the inner peripheral surface 55n of the pipe line 55. Can be recognized.

  This applies not only to the recess U but also to the case where a protrusion is formed on the inner peripheral surface 55n. When the height of the protrusion is equal to the wall thickness a of the rotation member 3, the rotation member 3 When the shaft member 2 is in contact with the top of the ledge in a state where the shaft member 2 is in contact with the inner peripheral surface 55n, the user can easily make the protrusion of the rotating member 3 from the sensation that the shaft member 2 contacts the top of the ledge. It can be recognized that the wall thickness is greater than a, and it can be recognized that a large bulge is formed on the inner peripheral surface 55n of the pipe 55.

  Hereinafter, another modification will be described with reference to FIGS. FIG. 21 is a partial perspective view showing a guide member through which an insertion portion of an endoscope and a jig are inserted together with a holding member and a pipe member in a state where the jig is taken out from the guide member, and FIG. It is a figure which shows the state which rotated the shaft member of the jig | tool 90 degrees.

  As shown in FIG. 21, the jig 1 may be inserted through a channel in the guide member 60 together with the insertion portion 50 a of the endoscope 50.

  Specifically, a channel 68 through which the insertion portion 50a of the endoscope 50 is inserted and a channel 69 through which the jig 1 is inserted are provided in the guide member 60 along the insertion direction S. The insertion portion 50a and the jig 1 can protrude forward from the front end openings of the channels 68 and 69, respectively.

  In addition, a slit 60s having a length S1 from the front end opening of the channel 69 is formed along the insertion direction S on one side surface 60q of the front end side of the guide member 60.

  The jig 1 includes a plate-like member 63 having an elongated thickness a along the insertion direction S, and a shaft member 62 having a central portion in the direction R rotatably fixed to the tip of the plate-like member 63. The main part is comprised. In FIG. 21, the jig 1 is shown upside down.

  The shaft member 62 is always configured to expand with a size of R4 in the direction R as shown in FIG. 21 by the spring 65. However, when the shaft member 62 is located in the channel 69, As shown in FIG. 22, the wall surface in the channel 69 is rotated and stored in the direction R so as to have a size of R6 smaller than R4 (R6 <R4).

  Further, the shaft member 62 is formed such that the distance from the fixed position of the tip of the plate-like member 63 to the one end 62i or the other end 62t in the direction R is R5, and the distance R5 is smaller than the length S1 of the slit 60s. (S1> R5), when the plate-like member 63 is pushed forward in the channel 69, the spring 65 spreads to the size R4 in the direction R through the slit 60s.

  On the other hand, when the plate-like member 63 is pulled backward in the channel 69, the shaft member 62 has a second end 62t that contacts the distal end surface 60m of the guide member 60, as shown in FIG. While rotating, it enters the channel 69 through the slit 60s, and in the direction R, the size is R6 in the direction R.

  In the case of measuring the depth of the recess D using the endoscope system 100 having such a configuration, first, the plate-like member 63 is pushed forward in the channel 69 to thereby pass through the slit 60s. As shown in FIG. 21, the shaft member 62 is rotated by the spring 65, and spreads to the size of R4 in front of the front end surface 60m.

  Thereafter, a plate-like member 63 having a thickness a equal to the set depth W is inserted into the recess D. As shown in FIG. 21, the holding member 11 constituting the recess D has an index 11p formed on the bottom surface 11tj at the lowest position.

  At this time, when the depth of the recess D is equal to or greater than the set depth W, the shaft member 62 contacts the top surface 10c of the pipe member 10. On the other hand, when the depth of the recess D is smaller than the set depth W, the shaft member 62 does not contact the top surface 10c.

  Therefore, by observing whether or not the shaft member 62 is in contact with the top surface 10c with the endoscope 50 inserted into the channel 68 of the guide member 60, the user can determine whether or not the recess D is equal to or greater than the set depth W. Can be easily recognized.

  21 and 22, the plate-like member 63 also serves as a convex portion that is fixed to the shaft member 62. However, the present invention is not limited to this, and a separate convex portion may be provided on the plate-like member 63. Of course it is good.

  Hereinafter, another modification will be described with reference to FIGS. 23 is a partial perspective view showing a modification of the configuration of the guide member in FIG. 20 together with the pipe member and the holding member. FIG. 24 is a sectional view of the jig and the recess along the line IIXIV-IIXIV in FIG. 25 is a perspective view showing a modification of the guide member for observing the index of the holding member using a camera provided on the guide member. In FIG. 25, the blade member and the pipe member are omitted.

  As shown in FIG. 23, on the side surface on the distal end side of the guide member 60, the blade member 72 is provided along the direction R at a position of height f equal to the set depth W in the height direction H from the bottom surface 60t. It has been.

  The bottom surface 60 t has a curved surface shape along the curved surface shape of the holding member 11. Further, the bottom surface 60t is opened. That is, the guide member 60 has a U-shape in which the cross section in the height direction H is downward.

  In addition, a hole 60h through which the insertion portion of the endoscope 57 can be inserted and removed is formed on the upper surface of the guide member 60 from above in the height direction H. As shown in FIG. 24, the endoscope 57 introduced into the guide member 60 through the hole 60h observes the above-described index 11p of the holding member 11 from the opening of the bottom surface 60t. The observation of the index 11p is not limited to the endoscope 57, but may be a camera 74 such as a C-MOS provided on the guide member 60 as shown in FIG.

  On the distal end side of the guide member 60, a portion below the blade member 72 in the height direction H constitutes a portion to be inserted into the recess D as shown in FIG.

  Further, the blade member 72 can be opened and closed by a link mechanism or the like (not shown). When the distal end side of the guide member 60 is fitted into the recess D, the blade member 72 comes into contact with the side surface of the guide member 60 when it contacts the top surface 10c of the pipe member 10. It has a function to jump up. That is, the guide member 60 shown in FIGS. 23 and 24 also serves as the jig 1.

  In such a configuration, first, using the endoscope 57 inserted into the guide member 60 through the hole 60h, the index 11p of the holding member 11 is observed to find the bottom 11t, and then the guide member 60 is moved. The tip side is inserted into the recess D.

  Thereafter, if the depth of the recess D is equal to or greater than the set depth W, the blade member 72 comes into contact with the top surface 10c of the pipe member 10 and jumps up. On the other hand, if the depth of the recess D is smaller than the set depth W, the blade member 72 is not in contact with the top surface 10c, and the position of the blade member 72 is not changed.

  The user can easily determine whether the depth of the recess D is equal to or greater than the set depth W by observing the endoscope 57 and the guide member 60 using the endoscope 54 inserted separately. It can be visually recognized.

  In addition, the structure shown in FIGS. 26-28 is mentioned as another structure which measures the depth of the recessed part D using a guide member. FIG. 26 is a partial perspective view showing a configuration of a modified example of the guide member that measures the depth of the recess using laser light emitted from the guide member, together with the endoscope, the holding member, and the pipe member. 26 is a cross-sectional view of the guide member and the recess along the line IIXVII-IIXVII in FIG. 26. FIG. 28 is a partial perspective view of the laser irradiated to the pipe member and the holding member in FIG. 26 viewed from the direction of IIXVII in FIG. is there.

  As shown in FIG. 26, the guide member 8 has a portion 80 e extending forward from the distal end opening of the channel 88 into which the insertion portion 50 a of the endoscope 50 is inserted, above the channel 88. In addition, a laser beam irradiation unit 81 for irradiating the line-shaped laser beam L (FIG. 27) is provided on the bottom surface on the distal end side of the extended portion 80e.

  According to such a configuration, as shown in FIGS. 26 and 27, when the laser beam irradiation unit 81 irradiates the bottom surface 11 tj of the concave portion D of the bottom portion 11 t of the holding member 11 with the linear laser beam L, As shown in FIG. 28, the laser light L is shown as a laser line Q with respect to the pipe member 10 and the holding member 11.

  By observing the laser line Q using the endoscope 50 protruding from the distal end opening of the channel 88, the user can easily recognize the top surface 10c of the pipe member 10 and the bottom surface 11tj of the recess D. Therefore, it is possible to easily recognize whether or not the depth of the recess D is equal to or greater than the set depth W by known stereo measurement.

  Hereinafter, another modification will be described with reference to FIGS. 29 to 31. FIG. 29 is a perspective view showing a configuration of a modified example of the endoscope system that measures the depth of the concave portion using a strain gauge, and FIG. 30 is a diagram in which the extending direction of the shaft member is changed by a bent metal core. FIG. 31 is a partial perspective view showing the state, and FIG. 31 is a cross-sectional view showing a state in which the convex portion of the shaft member of FIG. 29 is fitted into the concave portion.

  In the configuration shown in FIG. 29, the shaft member 92 is formed in a flat plate shape, and a convex portion 93 is provided at the central portion in the direction R of the shaft member 92, and the convex portion 93 is provided. On the surface opposite to the surface, strain gauges 96 are respectively provided on one end side and the other end side in the direction R.

  Moreover, a cored bar 98 having a linear shape and a cored bar 99 having a curved shape on the tip side can be inserted into the pipe 5 from the insertion port 50bs of the operation unit 50b. As shown in FIG. 30, the spring member 4 bends so that the shaft member 92 extending along the direction R extends along the direction S.

  The convex portion 93 is a portion that is fitted into the concave portion D, has a thickness a equal to the set depth W in the height direction H, and the top portion 93t can freely contact the bottom surface 11tj.

  The shaft member 92 can freely contact the top surface 10 c of the pipe member 10 when the convex portion 93 is fitted into the concave portion D. FIG. 31 shows that when the set depth W = the thickness a of the convex portion 93, the shaft member 92 is in contact with the top surface 10c, and the top portion 93t of the convex portion 93 is in contact with the bottom surface 11tj. Yes.

  According to such a configuration, when the convex portion 93 is inserted into the concave portion D, on the other hand, if the depth of the concave portion D is equal to or greater than the set depth W, the shaft member 92 is formed on the top surface 10c of the pipe member 10. Contact. As a result, since the output of the strain gauge 96 changes, the user can easily recognize that the depth of the recess D is equal to or greater than the set depth W.

  On the other hand, when the depth of the recess D is smaller than the set depth, the shaft member 92 does not contact the top surface 10c. Therefore, since there is no change in the output of the strain gauge 96, the user can easily recognize that the depth of the recess D is smaller than the set depth. As described above, the depth of the recess D may be measured using the strain gauge 96.

  In the first to third embodiments described above, the object to be measured is two pipe members, and the recess D is between the two pipe members 10 and the bottom portion 11t of the holding member 11. Although the concave portion is shown as an example, the measurement object may be anything, and of course, any concave portion may be used as long as it is a concave portion. That is, it may be a recess formed in the measurement object, or may be a recess formed by the measurement object and another member as shown in the first to third embodiments. Furthermore, the shape of the recess may be a line shape.

Moreover, although the recessed part was mentioned and shown as an example as a level | step difference, it will not be limited to a recessed part if it is not only this but a level | step difference. That is, it is needless to say that the present invention can be applied to simply measuring the depth of the step.
In the first to third embodiments described above, a coil-shaped member is used for the spring member 4. However, the present invention is not limited to this, and any member having elasticity may be used.

DESCRIPTION OF SYMBOLS 1 ... Jig 2 ... Shaft member 2a ... Non-rotation part 2as ... Positioning parameter | index 2b ... Rotation part 2bs ... Positioning parameter | index 3 ... Rotation member (convex part)
3t ... Outer peripheral surface (top) of rotating member
4 ... Spring member 8 ... Wire (traction member)
9: Plural members with different diameters 10 ... Pipe member (measurement object)
10c: Top surface of pipe member (reference surface)
11tj: bottom surface of recess 32 ... shaft member 33 ... convex portion 33t ... top of convex portion 50 ... endoscope 58 ... channel 68 ... channel 69 ... channel 100 ... endoscope system D ... recess (step)
R: Extension direction S: Insertion direction W: Setting depth

Claims (11)

A shaft member that is at least partially contactable with the reference surface of the measurement object;
From the shaft member, which can be freely inserted into a step formed to be recessed with respect to the reference surface of the measurement object, and can be contacted with a bottom surface located at a set depth from the reference surface at the step. A protrusion protruding at the same height as the set depth;
A jig having
An endoscope for observing at least the jig;
Comprising
The shaft member contacts the reference surface when the depth of the step is equal to or higher than the height of the convex portion after the convex portion is inserted into the step, and the depth of the step is higher than the height of the convex portion. When it is small, it becomes non-contact with the reference surface,
The endoscope system is characterized by observing at least whether or not the shaft member is in contact with the reference surface after the convex portion is inserted into the step. The top part of the convex part is not in contact with the bottom surface when the depth of the step is larger than the height of the convex part after the convex part is inserted into the step.
2. The endoscope system according to claim 1, wherein the endoscope further observes whether or not the top portion of the convex portion contacts the bottom surface after the convex portion is fitted into the step. 3. The shaft member includes a non-rotating portion and a rotating portion that can freely contact the reference surface, and a positioning index is provided on the non-rotating portion and the rotating portion.
The positioning index of the rotating part is such that when the shaft member is moved after the convex part is inserted into the step, the rotating part is the reference when the depth of the step is equal to or higher than the height of the convex part. By rotating and moving in contact with the surface, the rotating portion is positioned away from the positioning index of the non-rotating portion, and when the depth of the step is smaller than the height of the convex portion, the rotating portion is By non-contacting the surface, it matches the positioning index of the non-rotating part,
The endoscope further comprises the step of observing whether or not the positioning index of the rotating portion is displaced from the positioning index of the non-rotating portion after the convex portion is inserted into the step. Or the endoscope system of 2. The convex portion is separable from the shaft member,
The convex portion is in contact with the shaft member when the depth of the step is smaller than the convex portion after the convex portion is inserted into the step, and the depth of the step is equal to or higher than the height of the convex portion. Sometimes separated from the shaft member,
The endoscope system according to claim 1, wherein the endoscope further observes the presence or absence of separation of the convex portion with respect to the shaft member after the convex portion is fitted into the step. The jig is inserted through a channel in the insertion portion of the endoscope,
5. The apparatus according to claim 1, wherein at least the shaft member and the convex portion are positioned so as to protrude forward in the insertion direction from an opening in the insertion direction of the insertion portion in the channel. The endoscope system according to item 1. The jig is inserted through a channel in the guide member,
5. The apparatus according to claim 1, wherein at least the shaft member and the convex portion are positioned so as to protrude forward in the insertion direction from an opening on the distal end side of the guide member in the channel in the insertion direction. The endoscope system according to item 1.   The endoscope system according to claim 6, wherein the endoscope is inserted into a channel different from a channel through which the jig of the guide member is inserted.   The endoscope system according to any one of claims 1 to 3, wherein the convex portion is a rotating member provided on an outer periphery of the shaft member. An elastic member is connected to one end of the shaft member,
The traction member that changes the extension direction of the shaft member as it is pulled is connected to at least one of one end and the other end of the shaft member in the extension direction. The endoscope system according to any one of the above. A plurality of members with different diameters are attachable to and detachable from the shaft member,
The endoscope system according to any one of claims 1 to 9, wherein the plurality of members constitute a portion that comes into contact with the reference surface of the shaft member after being attached to the shaft member.   The endoscope system according to claim 1, wherein the shaft member is extendable in an extending direction.

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