JPH062478U - Lock structure of operation recorder - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a lock structure for an operation recorder, which has a good assembling property when the cylinder is attached to the lid case and can reliably prevent incomplete locking of the lock. A storage wall 2 is formed on a front edge 8 of a lid case 4 capable of engaging with a tumbler 13 of a cylinder 11, and forms a cylinder storage portion 18 in cooperation with the lock wall.
2 is formed on the cover body 7 of the lid case, and the front edge is attached to the cover body to form the lock mounting portion of the lid case.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lock structure of an operation recorder mounted on, for example, a taxi vehicle.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, there are known operation recorders that record various data during vehicle operation on a chart sheet and use it for operation management. 3 to 5 show a conventional operation recorder 1, in which a lid case in which a display unit such as a timepiece 3 is housed is provided on the front surface of a main case 2 in which a recording mechanism unit such as a recording hand is housed. 4 is attached via a hinge 5 so as to be openable and closable, and a chart paper 6 for contacting the recording needle and recording predetermined data on the paper surface is attached to the back surface of the lid case 4. . The lid case 4 is composed of a cover body 7 for accommodating the mechanical portion of the display portion, and a front edge 8 to which a front glass which is fitted on the front surface of the cover body 7 to protect the display portion is attached. The front edge of the front edge 8 is provided with a lock 9 which is opened and closed when the chart paper 6 is attached and detached.

The lock 9 includes a cylindrical cylinder 11 having a flange portion 10 formed at one end thereof, and a keyhole 12 is formed on the front surface of the flange portion 10. Further, a tumbler 13 that can move in and out in the radial direction of the cylinder 11 is provided on the flange portion 10 side portion of the cylinder 11, and the tumbler 13 is inserted into the key hole 12 by inserting the key 14 into the cylinder 11. It is housed inside and protrudes from the cylinder 11 by removing the key 14 from the key hole 12. Further, the cylinder 11 is formed with a ridge portion 15 extending in the longitudinal direction, and the ridge portion 15 abuts a wall portion of the cylinder accommodating portion 18 of the cover body 7 as described later, Is designed to rotate in only one direction.

Further, a cylinder insertion hole 16 into which the cylinder 11 is inserted is formed in a front edge 8 of the lid case 4, and the cover body 7 of the lid case 4 has the cylinder insertion hole 16. A cylinder accommodating portion 18 formed of a wall body 17 arranged in a cylindrical shape for accommodating 11 is formed. The cylinder 11 is inserted and accommodated in the cylinder accommodating portion 18 through the cylinder insertion hole 16 with the front edge 8 fitted onto the cover body 7. A lock plate 19 is screwed onto the back side of the cover body 7 by a set screw 20.

Here, in the wall body 17 forming the cylinder accommodating portion 18, the right side wall portion 17 a in the insertion direction of the cylinder 11 abuts on the ridge portion 15 of the cylinder 11, and the left side wall portion 17 b is notched in the inner portion. In this state, the key 14 is inserted into the key hole 12 and the tumbler 13 is housed in the cylinder 11, so that the cylinder 11 moves clockwise (direction A in FIG. 5). It cannot rotate but can rotate about 90 ° only in the counterclockwise direction (direction B in FIG. 5). By rotating the lock plate 19 in the counterclockwise direction together with the key 14 and the cylinder 11, the locked state between the main case 2 and the lid case 4 is released.

The tumbler 13 is adapted to engage with the left side wall portion 17 b of the cylinder accommodating portion 18 in a state where the tumbler 13 projects from the cylinder 11 without inserting the key 14 into the keyhole 12. Even if the cylinder 11 is rotated without inserting 14, the tumbler 13 engages with the left side wall portion 17b to prevent the cylinder 11 from rotating, so that the lock state of the lock 9 is maintained. There is.

[0007]

[Problems to be solved by the device]

 However, in the conventional operation recorder 1 described above, the cylinder 11 forming the lock 9 is inserted through the cylinder insertion hole 16 in a state where the cover case 7 is assembled with the front edge 8 fitted on the cover body 7. Since it is designed to be inserted and accommodated in the accommodating portion 18, when the front edge 8 is fitted onto the cover body 7, the circumferential displacement between the cover body 7 and the front edge 8 (direction C in FIG. 5). ) Occurs, the cylinder insertion hole 16 and the cylinder accommodating portion 18 are misaligned, and the assembling ability when mounting the cylinder 11 on the lid case 4 deteriorates. It has a disadvantage that it cannot be attached to the lid case 4.

Further, even if the cylinder 11 can be mounted in a state where the cover body 7 and the front edge 8 are misaligned with each other, if the protruding state of the tumbler 13 coming in and out of the cylinder 11 is not sufficient. However, there is a risk that the tumbler 13 and the wall body 17 of the cylinder accommodating portion 18 may become disengaged, and the lock 9 may be incompletely locked.

The present invention has been made in view of the above points, and has a good assembling property when the cylinder is attached to the lid case, and an operation recorder capable of reliably preventing incomplete locking of the lock. It is intended to provide a lock structure.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the lock structure of the operation recorder according to the present invention comprises a display unit such as a watch body composed of a cover body and a front edge for a main case accommodating a recording mechanism unit such as a recording hand. In the operation recorder which can be opened and closed via a hinge and which can be locked by a lock attached to the lid case, a locking wall engageable with the tumbler provided in the cylinder of the lock is provided. Is formed on the peripheral edge of the cylinder insertion hole formed on the front edge, and an accommodating wall that cooperates with the locking wall to form an accommodating portion of the cylinder is formed on the cover body. It is characterized in that a lock mounting portion of the lid case is formed by attaching the front edge to the.

[0011]

[Action]

 According to the present invention, the locking wall engageable with the tumbler of the cylinder is formed on the front edge of the lid case, and the receiving wall which cooperates with the locking wall to form the receiving portion of the cylinder is formed. Since it is formed on the cover body and the front edge is attached to the cover body to form the lock mounting part of the lid case, the cover body is positioned while the positioning is performed by the cooperation work of the locking wall and the housing wall. It is possible to attach the front edge, prevent displacement of the cover body and the front edge in the circumferential direction, and provide a lock structure with good cylinder assemblability.

Further, since the locking wall that can engage with the tumbler of the cylinder is formed at the peripheral edge portion of the cylinder insertion hole on the front side which is the insertion side of the cylinder, it is not located between the cover body and the front edge. Even if this happens, the positional relationship between the cylinder insertion hole on the front edge and the locking wall will not change, and the tumbler protruding from the cylinder inserted into the cylinder insertion hole will surely engage with the locking wall. The lock structure can be adapted so that the lock does not become incomplete.

[0013]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 show an embodiment of a lock structure of an operation recorder according to the present invention. A lid case 4 attached to a front surface of a main case via a hinge 5 so as to be openable and closable is a watch body or the like. The cover body 7 for accommodating the mechanical portion of the display portion and the front edge 8 to which a front glass that is fitted on the front surface of the cover body 7 to protect the display portion is attached are formed. A lock 9 that is opened and closed when the chart paper is attached to and removed from the back of the lid case 4 is attached to the upper end of the front side of the.

The lock 9 includes a cylinder 11 having a keyhole formed therein. The cylinder 11 is housed in the cylinder 11 by inserting the key 14 into the keyhole, and the key 14 can be removed from the keyhole. The tumbler 13 is provided so as to project from the cylinder 11 and can move in and out in the radial direction of the cylinder 11. Further, the cylinder 11 is formed with a ridge 15 extending in the longitudinal direction, and the ridge 15 abuts on a wall of the cylinder accommodating portion 18 so that the cylinder 11 can move in one direction, as will be described later. It is designed so that it only rotates.

A cylinder insertion hole 16 into which the cylinder 11 is inserted is formed in the front edge 8 of the lid case 4, and a peripheral edge portion of the cylinder insertion hole 16 corresponds to a left side portion in the cylinder insertion direction. On the back surface of the rim 8, a substantially quarter cylindrical locking wall 21 that can engage with the tumbler 13 protruding from the cylinder 11 is formed as described later.

In the cover body 7 of the lid case 4, a cylindrical cylinder accommodating portion for accommodating the cylinder 11 is provided at a position corresponding to the cylinder insertion hole 16 in cooperation with the locking wall 21. A substantially three-quarter-cylindrical housing wall 22 is formed on the front edge 8 side so as to form 18. When the front edge 8 is fitted onto the cover body 7, the end surface 21a of the locking wall 21 is brought into contact with and guided by the end surface 22a of the housing wall 22. There is no positional displacement in the circumferential direction between the front edge 8 and the front edge 8. In other words, there is no positional displacement between the cylinder accommodating portion 18 formed by the locking wall 21 and the accommodating wall 22 and the cylinder insertion hole 16. It is designed so that the lid case 4 without a cover can be assembled.

Here, the protruding portion 15 of the cylinder 11 inserted and accommodated in the cylinder accommodating portion 18 abuts the step portion 22b of the accommodating wall 22 on the right side in the inserting direction of the cylinder 11, but the cylinder 11 The protrusion 15 does not come into contact with the locking wall 21 on the left side in the insertion direction of the tumbler 13 when the key 14 is inserted into the key hole. The cylinder 11 cannot be rotated in the clockwise direction (direction A in FIG. 1) but can be rotated approximately 90 ° only in the counterclockwise direction (direction B in FIG. 1) while being accommodated in the cylinder 11. . The lock plate 19 screwed to the insertion end of the cylinder 11 from the back side of the cover body 7 by the set screw 20 is rotated counterclockwise together with the cylinder 11 so that the main case and the lid case 4 are separated from each other. The locked state is released.

Further, the tumbler 13 is adapted to engage with the locking wall 21 forming the cylinder housing portion 18 in a state where the tumbler 13 projects from the cylinder 11 without inserting the key 14 into the key hole. Even if the cylinder 11 is rotated without inserting the key 14, the tumbler 13 engages with the locking wall 21 to prevent the cylinder 11 from rotating, and the lock state of the lock 9 is maintained.

Reference numeral 23 is a locking claw formed on the cover body 7 that engages with the locking recess 24 of the front edge 8, and the assembled state of the lid case 4 is maintained by these engagements. It has become. Next, the operation of this embodiment will be described.

In this embodiment, when the front edge 8 is fitted onto the cover body 7, the end surface 22 a of the retaining wall 21 of the front edge 8 contacts the end surface 22 a of the storage wall 22 of the cover body 7. The front edge 8 is fitted onto the cover body 7 until the locking claw 23 of the cover body 7 and the locking recess 24 of the front edge 8 are engaged with each other, and the lid case 4 is guided. It can be assembled.

In this case, in this embodiment, since the lid case 4 is assembled so that the end surfaces of the accommodation wall 22 of the cover body 7 and the locking wall 21 of the front edge 8 come into contact with each other, the cover body 4 is assembled. The lid case 4 can be assembled in a state in which there is no positional deviation in the circumferential direction between the front edge 7 and the front edge 8. Therefore, the lid case 4 can be formed between the cylinder accommodating portion 18 formed of the locking wall 21 and the accommodating wall 22 and the cylinder insertion hole 16 of the front edge 8 without displacement. The cylinder 11 can be inserted and accommodated in the cylinder accommodating portion 18 through the insertion hole 16 with a good assembling property, and the cylinder 11 can be reliably attached to the lid case 4.

Further, since the locking wall 21 that can be engaged with the tumbler 13 of the cylinder 11 is formed at the peripheral edge of the cylinder insertion hole 16 of the front edge 8 on the insertion side of the cylinder 11, the cover body should be provided. Even if there is a displacement between 7 and the front edge 8, the positional relationship between the cylinder insertion hole 16 of the front edge 8 and the locking wall 21 does not change, and the cylinder insertion hole 16 is inserted. The tumbler 13 projecting from the cylinder 11 securely engages with the locking wall 21, and the lock 9 can be prevented from being incompletely locked.

Further, since the positional displacement between the cover body 7 and the front edge 8 is eliminated as described above, the hinge 5 formed on the front edge 8 for opening / closing the lid case 4 with respect to the main case. The positioning of is good. Furthermore, in the cylinder accommodating portion 18 formed in the conventional cover body 7, a part of the wall body 17 is notched in the inner part of the cylinder 11 so that the cylinder 11 can rotate in one direction. In order to form the cover body 7 having the accommodating portion 18 through the mold, the slide mold needs to be included in the mold structure. According to the present embodiment, the sliding wall 21 formed on the front edge 8 and Since the cylinder accommodating portion 18 is formed by cooperation with the accommodating wall 22 formed in the cover body 7, a slide mold for forming the cylinder accommodating portion 18 is not necessary, and the mold structure is improved. It can be simplified and the cost can be suppressed.

[0024]

[Effect of device]

 As described above, in the lock structure of the operation recorder according to the present invention, the locking wall engageable with the tumbler of the cylinder is formed on the front edge of the lid case, and the locking wall of the cylinder cooperates with the locking wall. Since the storage wall forming the storage portion is formed in the cover body of the lid case and the front edge is attached to the cover body to form the lock mounting portion of the lid case, the cooperation between the locking wall and the storage wall The front edge can be attached to the cover body while performing positioning by work, and it is possible to prevent the positional deviation between the front edge and the cover body in the circumferential direction, and to provide a lock structure with good cylinder assembly properties. A locking wall that can engage with the tumbler of the cylinder is formed at the peripheral edge of the cylinder insertion hole on the front side, which is the cylinder insertion side. Even if the cylinder insertion hole on the front edge and the locking wall The position of the lock does not change, and the tumbler protruding from the cylinder that is inserted into the cylinder insertion hole will surely engage the locking wall, and the lock structure will prevent imperfect lock. There is an effect such as being able to.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a lock structure of an operation recorder according to the present invention.

FIG. 2 is a front view showing a cylinder accommodating portion of FIG.

FIG. 3 is a front view of an operation recorder.

FIG. 4 is a side view of the operation recorder showing a state in which a lid case is opened.

FIG. 5 is a perspective view showing a lock structure of a conventional operation recorder.

[Explanation of symbols]

 1 Operation Recorder 2 Main Case 4 Lid Case 5 Hinge 6 Chart Paper 7 Cover Body 8 Front Edge 9 Lock 11 Cylinder 12 Keyhole 13 Tumbler 14 Key 15 Projection 16 Cylinder Insertion Hole 18 Cylinder Housing 19 Lock Plate 21 Locking Wall 22 Housing wall

Claims (1)

[Scope of utility model registration request] 1. A main case containing a recording mechanism section such as a recording needle, and a lid case containing a display section such as a watch body made of a cover body and a front edge can be opened and closed via a hinge. In the operation recorder provided with the lid case and lockable by a lock, a locking wall engageable with a tumbler provided on the lock cylinder is provided with a peripheral edge of a cylinder insertion hole formed on the front edge. Formed on the cover body, the housing wall is formed on the cover body in cooperation with the locking wall to form the housing portion of the cylinder, and the front edge is attached to the cover body to lock the lock case of the lid case. A lock structure for an operation recorder, which is characterized in that