JPH0496061A - X-ray film developing device for dentistry - Google Patents

Abstract

PURPOSE:To remarkably facilitate the handling of a device and to improve the work efficiency of developing processing by automatically attaching and detaching a film holder with respect to an arm which is rotated and moved. CONSTITUTION:The film is mounted in the holder 50 and it is inserted in an insertion box 240 from the aperture of the upper part thereof. When a motor is driven, the arm 35 is turned, engaged with one end 52 of the holder 50 projecting to the locus of the arm 35 and caught by the holder 50. Then, the holder 50 is made to fall off from the notched part 246 of a bottom wall 244 and turned together. The holder 50 is successively passed through respective tanks while it is turned and the developing processing thereof is executed. The one end of the holder abuts on a detaching piece 46 at a place where the developing processing is finished and the engagement of the holder and the arm is released. The arm is continuously rotated and the holder 50 falls off. Then, the holder 50 is passed through a transfer path 42 and sent to a taking-out port 45. Since the film holder 50 is automatically attached and detached with respect to the arm 35 in such a way, the handling of the device is facilitated and the work efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dental X-ray film developing machine that develops photographed dental X-ray film.

[Conventional technology]

In recent years, dental X-ray photographs have been used for dental diagnosis and treatment. Teeth X-ray photography to obtain this X-ray photograph is performed by placing an opaque dental X-ray film package containing X-ray film against the affected area in the oral cavity and irradiating it with X-rays. . This X-ray photography creates a latent image of the tooth on the X-ray film.

After the X-ray imaging is completed, the X-ray film package is removed from the oral cavity, torn in a dark room, etc., and the X-ray film is taken out. The taken-out X-ray film is subjected to development processing such as development, fixing, and washing with water, thereby obtaining an X-ray image of the teeth photographed on the X-ray film.

In order to easily carry out the above-mentioned development process without requiring any effort, an automatic developing machine has been proposed, for example, as shown in Utility Model Application No. 150735/1983. This developing machine will be explained with reference to the drawings.

FIG. 16 is a plan view of the dental X-ray film developing machine, and FIG. 17 is a sectional view taken along the line X--X shown in FIG. In each figure, l indicates a developing machine. 2a is a circular bottom wall, 2
2C is a circular inner peripheral wall formed at a predetermined distance inward from the outer peripheral wall 2b. An annular groove-shaped space is created by the bottom wall 2a, the outer peripheral wall 2b, and the inner peripheral wall 2C. 3a,
3b, 3c, and 3d are partition walls constructed between the outer circumferential wall 2b and the inner circumferential wall 2C, and the partition walls 3a to 3d are provided at predetermined intervals from each other. Partition wall 3a~
3d, the annular space is partitioned into four chambers 4a, 4b, 4c, and 4d.

Reference numeral 5 denotes a motor mounted on the bottom wall 2a in a cylindrical space constituted by the bottom wall 2a and the inner circumferential wall 2C. 6 is a rotating shaft connected to the motor 5 directly or via a reduction gear; 7 is an arm fixed to the rotating shaft 6 and extending in a right angle direction;
7a is a hanging portion formed at the tip of the arm 7. arm 7
The tip, that is, the hanging portion 7a is located above the annular space, approximately in the middle between the outer circumferential wall 2b and the inner circumferential wall 2C. 8a, 8b, 8c are each room 4a
.

This is a plug that closes the liquid outlet provided at the lower part of the outer peripheral wall 2b of 4b and 4c. IO indicates a support for supporting dental X-ray film. The structure of this support IO is shown in Figure 18(a).
, (b).

FIG. 18(a) is a plan view of the support shown in FIG.
Figure 8(b) is the line xvmb-x■b shown in Figure 18(a).
FIG. The support body 10 includes a hole 10b provided at one end of the main body 10a, and a film mounting portion 10c at the other end of the main body 10a. The film mounting portion 10c is formed into two forks as shown in FIG. 18(a),
The inner edges of these two forks have grooves 1 as shown in Figure 18(b).
0d is created. By inserting the dental X-ray film F into the groove 10d from the tip of the film mounting portion 10c, the dental X-ray film F is supported by the support body 10.

Next, the developing process using the developing device 1 will be explained with reference to the operational diagram shown in FIG. 19. Note that FIG. 19 is a plan view of each chamber arranged in an annular shape. During the development process, first, as shown in FIG. 19, a developer solution S is placed in the chamber 4a, a fixer solution S3 is placed in the chamber 4b, and a washing liquid S3 is placed in the chamber 4C.
(not shown) is injected, and the chamber 4d is left empty.

Furthermore, the photographed X-ray film is taken out from the dental X-ray film package, is fitted into the groove 10d of the support 10 and is supported, and the hole 10b of the support 10 is inserted into the hole 10b of the support 10 as shown in FIG. The support body 10 is suspended from the tip of the arm 7 by hanging it on the hook of the hanging portion 7a of the arm 7. Incidentally, at the start of development, the arm 7 is set to be in the position shown in FIG. 13, that is, in a position close to the partition wall 3a of the chamber 4a. Thus, when the support 10 is first suspended on the suspension 7a as described above, the dental X-ray film F is under development.

When the motor 5 is immediately driven from this state, the rotating shaft 6 of the motor 5 rotates, and the arm 7 starts moving along approximately the center of the chamber 4a, and accordingly, it is attached to the film attachment part 10c of the support lO. The developed dental X-ray film F is also treated with developer S,
moving inside. During this movement, the dental X-ray film F is developed.

When the dental X-ray film F approaches the partition wall 3b, the film attachment part 10c of the support body 10 comes into contact with the inclined surface 2a' formed on the bottom wall 2a of the chamber 4a, and this inclined surface 28+ causes the arm 7 to As it moves, the support body 10 rotates around the hanging portion 7a and is lifted upward, and finally rides on the partition wall 3b in a state as shown by the dotted line. When the arm 7 further moves, the film mounting section 10C moves to the partition wall 3b.
, then overcome this. At this moment, support 1
0 rotates downward around the hanging part 7a, and the film mounting part 10c falls into the fixer solution S in the chamber 4b, and the dental film X
The line film F enters the fixer St. Thereafter, as the arm 7 moves, the dental X-ray film F moves through the fixing solution St and is fixed.

In exactly the same way, the dental X-ray film F passes into the chamber 4C, enters the rinsing liquid S3, and is rinsed while moving through the rinsing liquid S3. Further, the dental X-ray film F moves from the chamber 4C to the chamber 4d, and drops the rinsing liquid S3 attached to the surface while passing therethrough.

After passing through the chamber 4C, the support 10 is removed from the arm 7, and the dental X-ray film F is further removed from the film mounting portion 10c of the support 10, and the dental X-ray film F is in a state where the development process has been completed. , an X-ray image of the tooth appears there.

[Problem to be solved by the invention]

The developing machine 1 is a device suitable for a dentist or his assistant to easily develop a photographed dental X-ray film F in a dental clinic. For this reason, it is desirable that the developing machine I be easy to handle.

However, the developing machine 1 cannot be used by a dentist or the like to
0, suspending the hole 10b from the hanging portion 7a of the arm 7, and removing the support 10 from the arm 7 after development is completed, making handling quite troublesome.

Furthermore, in the above-mentioned developing machine 1, in order to suspend and remove the support 10 from the arm 7, the arm 7 must be stopped after one rotation, and continuous rotation is not possible, which reduces the work efficiency of the developing process. It had a fatal flaw in that it was extremely bad.

The purpose of the present invention is to solve the problems in the above-mentioned prior art,
It is an object of the present invention to provide a dental X-ray film developing machine that is easy to handle and can improve the working efficiency of developing processing.

[Means to solve the problem]

In order to achieve the above object, the present invention fixes a motor in a cylindrical housing, engages a film holder with an arm attached to the motor shaft of the motor, and while the motor shaft rotates once, the In a dental X-ray film developing machine that develops a film attached to a film holder, a curved film holder insertion box is provided on a part of the peripheral wall of the housing along the peripheral wall, and the film holder insertion box is inserted into the film holder insertion box. , an upper opening into which the film holder is inserted, a bottom wall that supports the film holder, and a bottom wall formed on the side in the direction of movement of the arm so that when the film holder is supported on the bottom wall, one end of the bottom wall is connected to the arm. The film holder is characterized in that a notch is formed to protrude along the trajectory and allow the film holder to be removed.

Furthermore, in the above-mentioned developing machine, the film holder is fixed to the inner wall of the housing in the movement area of the film holder after the development process is finished, and the film holder is fixed to the inner wall of the housing in the movement area of the film holder, and is in contact with an end of the film holder. It is also characterized by providing a detachable piece that comes in contact with the detachable piece, and a transfer path having an inclination that guides the film boulder that has fallen off from the arm due to the contact with the detachable piece to the film holder outlet.

[Effect]

After mounting the film on the film holder, the operator inserts the film into the film holder insertion box through its upper opening. When the motor is driven, the arm rotates and engages one end (claw) of the film holder protruding along its trajectory, dragging the film holder until it finally falls out of the cutout in the bottom wall.
- Rotate together. While rotating, this film holder passes through each tank one after another, and is subjected to development processing.

At the point where the developing process is completed, one end of the film holder hits the removal piece, thereby disengaging the film holder from the arm. After that, the arm continues to rotate,
On the other hand, the film holder falls off and is sent to the take-out port through the transfer path. In this way, the film holder is automatically attached to and detached from the arm.

〔Example〕

Hereinafter, the present invention will be explained based on illustrated embodiments.

FIG. 1 is a plan view of a film holder insertion box according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line ■-H shown in FIG. 1.
FIG. 3 is a cross-sectional view of the film holder removal section according to the embodiment of the present invention, and FIG. 4 is an explanatory diagram of the operation of the film holder removal section.

In order to clearly explain the functions of the film holder insertion box and the film holder removal section, first, the overall structure of the dental X-ray film developing machine (simply referred to as developing machine) of this embodiment will be explained.

FIG. 5 is a side view of the developing machine of this embodiment, and FIG. 6 is a plan view of the developing machine shown in FIG. In each figure, 19 indicates a developing machine. 20 is a film loading/loading section, 30 is a developing processing section,
40 is a take-out part. The film mounting/insertion section 20 consists of a case 21, and is provided with a hole 22 made in the case 21, a film mounting stand 23, and a film holder insertion opening 24. Further, the developing processing section 30 includes a case 31, a motor 32, a motor cover 33, a motor shaft 34,
An arm 35 coupled to this motor shaft 34 and a tank 3
6 is provided. Furthermore, the take-out section 40 is connected to the case 41.
It is equipped with a box 43 having a film transport path 42 and a handle 44.

Reference numeral 45 indicates a film removal portion, 46 a removal piece, and 47 an opening of the film transport path 42. Note that H is a heater pad fixed to the motor cover 33.

In the above configuration, the film holder insertion box shown in FIG. 1.2 constitutes the film holder input port 24 of the film loading/loading section 20, and the film holder removal section shown in FIG. This corresponds to the film holder removal section 45 shown in the figure.

First, the structure of the film holder insertion box will be explained with reference to FIGS. 1 and 2. In each figure, 240 indicates a film holder insertion box. This film holder insertion box 240 uses the case 21 as one side wall, the other side wall 241 which is opposite to this and has the same curved shape, and this side wall 241 and the case 21
A connecting wall 242 and guide walls 243a and 243b that connect the
, a bottom wall 244, an upper film holder input port 245, and a cutout 246 formed by cutting out the bottom wall 244. In FIG. 2, 35 is the same rotationally moving arm as shown in FIG. 5.6, and arrow B indicates the direction of movement of arm 35. Reference numeral 50 indicates a film holder, and in the illustrated case, three film holders are placed one on top of the other, and only one film holder is shown. Note that the film holder 50 will be described later.

Next, the structure of the film holder removal section will be explained with reference to FIG. 3.4. In each figure, the same parts as those shown in Fig. 5.6 are given the same reference numerals.

The film holder removal section 45 includes a removal piece 46 attached to the case 31 of the developing processing section 30, and this removal piece 46.
An opening 47 made in the bottom wall 311 of the case 31 at the bottom of the
, and a transfer path 42 that communicates the box 43 with the opening 47 provided in the case 41 of the take-out section '40. 421 is a guide wall on both sides of the transfer path 42, and 422 is a light shielding plate that covers the transfer path 42. The removal piece 46 is positioned at a predetermined location in the transfer area of the film holder after the development process is completed.

Here, before explaining the operation of this embodiment, the tank and film holder will be explained. First, the structure of the tank of this embodiment will be explained with reference to FIGS. 7, 8, and 12. Fig. 7 is a perspective view of the tank of this embodiment, and Fig. 8 is a perspective view of the tank of this embodiment.
FIG. 12 is a cross-sectional view taken along the line ■-■ shown in the figure, and FIG. 12 is a cross-sectional view showing the state in which the tank is attached. In each figure, 36 is the same tank as shown in FIG. 5.6, and a developing solution, a fixing solution, a washing solution, etc. (developing solution S1 in FIG. 8) are placed inside.

361 is a covering film that seals the opening of the tank 36, and is releasably adhered to the upper edge surface of the opening.

Reference numerals 361a and 361b are tongue pieces formed at both ends of the covering film 361 for peeling it off.

As is clear from FIG. 7, the tank 36 has a curved shape, and its curvature substantially matches the curvature of the case 31. In addition, as shown in FIG.
The width W of 6 is selected to be much smaller than the depth d. In addition, in Fig. 12, 311 is the case 31.
The bottom wall 312 is an upright wall for mounting a tank that projects upright from the bottom wall 311.

Reference numerals 36a1 and 36b1 are tank mounting protrusions provided at the bottom of the tank 36, and similar protrusions are also provided on the opposite side of the tank 36, although they are not shown in the figure.

As will be described later, by inserting the tank 36 between the case 31 and the upright wall 312 using these protrusions, the tank 36 can be inserted into the case 3 as shown in FIG. 5.6.
It is attached as if attached to 1.

During use, when it becomes necessary to replace the processing liquid, remove the installed tank 36, replace it with a tank filled with new processing liquid, and cover the tank with the tongue piece 361a. Alternatively, it is sufficient to grasp and peel off 361b to expose the processing liquid.

Here, the mounting mechanism of the tank 36 will be explained with reference to FIGS. 9 to 12. In each figure, 31.31L312 are the aforementioned case, bottom wall and upright wall, respectively. 31a, 31
b.

are vertical grooves formed on the inner wall surface of the case 31, 31a2.
31b2 is the vertical groove 3 as shown in FIG.
1a+, 31b1, and is a horizontal groove formed at right angles thereto. Similarly, 312a+, 312b are vertical walls 3
Vertical grooves 312at, 312b formed on the inner wall surface of 12
2 is a horizontal groove formed at right angles to these vertical grooves. 3
1a5.312as are case 31 and upright wall 31 respectively.
This is a locking groove formed on the upper edge of 2.

When installing the tank 36, the four protrusions of the tank 36 are inserted into vertical grooves 31a+, 31b+, 312a+, respectively.
Case 31 and upright wall 31 while engaged with 312tz
Insert between 2 and 2. When reaching the bottom of tank 36,
When this is pushed in the direction of arrow A in FIG. 9, each protrusion is removed from each horizontal wall 31a1, 31b, 312a! , enters 312bt. This state is shown in FIG. 12 as a cross-sectional view.

Next, when a suitable locking side rod is fitted into the locking groove 31a3, 312as, the movement of the tank 36 in the direction opposite to the arrow A is stopped, and the tank 36 is fixed at an accurate position. After being positioned in this way, cover film 36
When one of the tongues 1 is grabbed and pulled upward, the covering film 361 is peeled off from the tank 36, the processing liquid in the tank 36 is exposed, and the film holder can be inserted. Removal of the tank 36 is performed by the reverse operation to the above.

Next, the film holder (corresponding to the support 10 shown in FIGS. 18(a) and 18(b)) used in this example will be explained. Figure 13 is a front view of the film holder,
Figure 4 is its top view, and Figure 15 is the arrow XV shown in Figure 13.
It is a side view seen from the direction of force. In each figure, 50 indicates a film holder. Reference numeral 51 denotes a shaft portion of the film holder, 52 a locking pawl formed at one end of the shaft portion 51, and 53a and 53b film holding portions extending bifurcated from the other end of the shaft portion 51. 54a, 54b are the respective film holding parts 53a, 53
The tip of b is shown. Note that the shaft portion 51 is connected to the film holding portion 53.
a, 53b, and the locking claw 52 protrudes by a predetermined distance from a line passing through one of the film holding parts 53a and 53b (in the case of the figure, the film holding part 53b). The entire film holder 50 is curved as shown in FIG. 14, and its radius of curvature r is the same as that of the case 31 and the tank 36. As shown in FIGS. 13 and 15, the tip 54a has a film holding claw 55al.
, 55a2, 55a3 are provided, and the film F is held in the film holder 50 by these. Similar film holding claws are also formed at the tip 54b and at the base of each film holding part 53a, 53b, and the film F
It is designed to securely hold the

Next, the operation of this embodiment will be explained together with the operation of the developing process. During the development process, a developer tank 36 and a fixer tank 36 are installed along the case 31 as shown in FIG. The mounting and positioning of each tank 36 and the peeling off of the covering film 361 have been described above. In this state, the photographed dental X-ray film package is inserted into the case 21 of the film mounting/insertion section 20. The user inserts both hands into the case through holes 22 made in the case 21 (there are two holes 22, although they are not shown in Fig. 5). A strength bar is provided to block the light beam. ), take out the X-ray film F from the dental X-ray film package, and place the X-ray film F into the film holder 50 using the film mounting table 23.
Attach to. Film holder 5 with film F attached
0 is the film holder input port 245 in the direction shown in FIG.
The film is then inserted into the film holder insertion box 240. The inserted film holder 50 is supported by the bottom wall 244, and the locking claw 52 protrudes downward from the notch 246 and is positioned in the trajectory of the arm 35.

In the case shown in FIG. 2, three film holders 50 are inserted one on top of the other.

When the motor 32 rotates and the arm 35 moves in the direction shown by arrow B in FIG. Progress continues while dragging the holder 50 along with it. This movement of the film holder 50 is performed while slightly pushing up the other film holder 50 overlapping it.

Then, the tip 54b of the film holding portion 53b is connected to the bottom wall 24.
4, the film holder 50 rotates counterclockwise around the arm 35 and is suspended from the arm 35 by the locking claw 52. Thereafter, as the arm 35 advances, the film holder 50 passes through each tank 36 as in the conventional apparatus, and development and fixing are performed in sequence. in this case,
Since the film holder 50 is curved as described above,
Even if the tank 36 is narrow and curved, it can pass through it without any problem. Furthermore, as mentioned above, arm 3
When the film holder 50 is pulled out from the film holder insertion box 240 by 5, the film holder 50 placed thereon is positioned on the bottom wall 244 and waits for the arrival of the next arm 35.

When the developing process is completed and the film holder 5o reaches the film holder removal part 45, the locking claw 52 or the case 31
It comes into contact with a removal piece 46 fixed to. When the arm 35 further advances, the locking claw 52 remains in contact with the removal piece 46, so the engagement with the arm 35 is released, and the film holder 50 falls under its own weight, leaving the opening 47 and passing through the transfer path 42. It slides through and into the box 43. If the rinsing liquid is placed in the box 43, the use of a rinsing tank can be omitted.

When the box 43 is pulled out, the film holder 50 is taken out, and the X-ray film F is removed from the film holder 50, the X-ray film F has been developed and an X-ray image of the tooth has appeared there. becomes.

In this way, in this embodiment, the film holder can be automatically attached to and detached from the rotating arm.
The effort and time required for the attachment and detachment can be saved, and handling becomes much easier. Furthermore, since the film holder can be automatically attached and detached in this way, there is no need to stop the rotation of the arm for attachment and detachment, and the working efficiency of the developing process can be improved. Furthermore, since the tank and film holder are configured to be curved, the overall configuration can be made compact, and the tank makes it easy to replace the processing liquid.

In the above embodiment, an example was explained in which three film holders are stacked in the film holder insertion box, but only one film holder may be used, or four or more film holders may be mounted depending on the height of the case 31. It may also be a configuration. Further, although an example has been described in which the film holder has the same curve as the tank, the present invention is not limited to this, and a straight portion may be provided within the allowable range of the width of the tank. Furthermore, the shaft portion of the film holder does not necessarily have to be inclined; if the bottom wall of the film input port is inclined, the locking pawl can be projected into the orbit of the rotating arm.

〔Effect of the invention〕

As described above, in the present invention, since the film holder can be automatically attached and detached from the rotating arm, the effort and time required for the attachment and detachment can be saved, and handling becomes much easier. . Furthermore, since the film holder can be automatically attached and detached in this way, there is no need to stop the rotation of the arm for attachment and detachment, and the working efficiency of the developing process can be improved.

[Brief explanation of the drawing]

1 and 2 are a plan view and a side view of a film holder insertion box according to an embodiment of the present invention, FIGS. 3 and 4 are a sectional view and an operation explanatory diagram of a film holder removal part,
5 and 6 are a side view and a plan view of the overall structure of the developing machine, FIGS. 7 and 8 are perspective views and sectional views of the tank, and FIGS. 9, 10, and 11 are tank views, respectively. Fig. 12 is a sectional view of the mounting portion of the tank, Fig. 13, Fig. 14, and Fig. 15 are a plan view, a top view, and a partial side view of the film holder, respectively. , FIGS. 16 and 17 are a plan view and a sectional side view of a conventional developing machine, FIGS. 18(a) and 18(b) are a side view and a sectional view of a support, and FIG. FIG. 18 is an explanatory diagram of the operation of the developing machine shown in FIG. 17; 31・・・・・・・・・Case, 35・・・・・・・・・
・・Arm, 36・・・・・・・・・・Tank, 42・
......Transfer path, 45...Film holder take-out section, 46...Removal piece, 47...
......Aperture, 50...
Film holder, 240...Film holder insertion box, 241...Side wall, 244...
...Bottom wall, 245...Film holder inlet, 246...Notch, 422-...Shade stone 240 Insertion into hole λh241 A9
'l tie bar 244, n-line 245, fijmholk inlet 246 seven-sword missing hair β diagram diagram diagram diagram diagram diagram cause diagram diagram C inner circumference/seven-ta diagram diagram diagram diagram diagram

Claims (3)

[Claims] (1) A motor is fixed in a cylindrical housing, a film holder is engaged with an arm attached to the motor shaft of the motor, and the film attached to the film holder is developed while the motor shaft rotates once. In a dental X-ray film developing machine that performs
a bottom wall that supports the film holder; and a bottom wall formed on the side of the bottom wall in the direction of movement of the arm so that when the film holder is supported by the bottom wall, one end of the bottom wall projects into the trajectory of the arm, and the film holder is A dental X-ray film developing machine characterized by forming a notch for detachment. (2) The dental X-ray film developing machine according to claim (1), wherein the film holder insertion box has a depth in the vertical direction thereof into which at least one film holder can be inserted. (3) A motor is fixed in a cylindrical housing, a film holder is engaged with an arm attached to the motor shaft of the motor, and the film attached to the film holder is developed while the motor shaft rotates once. In the dental X-ray film developing machine, the removal piece is fixed to the inner wall of the housing and comes into contact with an end of the film holder in the moving area of the film holder after the development process is finished, and the removal piece comes into contact with the removal piece. A dental X-ray film developing machine, characterized in that the dental