JP2575626Y2 - Lock structure of operation recorder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock structure of an operation recorder mounted on, for example, a taxi vehicle.

[0002]

2. Description of the Related Art Conventionally, there is known an operation recorder which records various data at the time of vehicle operation on a chart paper and uses it for operation management. FIGS. 3 to 5 show a conventional operation recorder 1, in which a main case 2 in which a recording mechanism such as a recording hand is accommodated has a front case in which a display unit such as a clock body 3 is accommodated. 4 is attached via a hinge 5 so as to be openable and closable. On the back of the lid case 4, a chart paper 6 for contacting with the recording needle and recording predetermined data on paper is attached. . The lid case 4 is
A cover body 7 for accommodating the mechanism of the display unit; and a front edge 8 fitted to the front of the cover body 7 and attached with a front glass for protecting the display unit. A lock 9 which is opened and closed when the chart paper 6 is mounted and removed is mounted on the upper front end of the lock.

The lock 9 includes a cylindrical cylinder 11 having a flange 10 formed at one end, and a keyhole 12 formed at the front of the flange 10.
A tumbler 13 which can be moved in and out in the radial direction of the cylinder 11 is provided at a portion of the cylinder 11 on the side of the flange portion 10.
The tumbler 13 is provided with the keyhole 12.
The key 14 is inserted into the cylinder 11 by being inserted therein, and the key 14 is projected from the cylinder 11 by removing the key 14 from the keyhole 12. Further, a protruding ridge 15 extending in the longitudinal direction is formed on the cylinder 11, and the protruding ridge 15 comes into contact with a wall of a cylinder housing portion 18 of the cover body 7 as described later, and Rotates only in one direction.

[0004] A front edge 8 of the lid case 4 has a cylinder insertion hole 16 into which the cylinder 11 is inserted.
The cover body 7 constituting the lid case 4 is provided with a cylinder housing portion 18 composed of a cylindrical wall body 17 for housing the cylinder 11. Then, the cylinder 11 is inserted into and accommodated in the cylinder accommodating portion 18 through the cylinder insertion hole 16 with the outer edge 8 fitted on the cover body 7. The lock plate 19 is screwed by a set screw 20 from the back side of the cover 7.

[0005] Here, the wall body 17 forming the cylinder accommodating portion 18 is a right side wall portion 17a in the insertion direction of the cylinder 11.
Abuts against the ridge 15 of the cylinder 11, and the left side wall 17b
Is cut out at the back so that it does not come into contact with the ridge 15, and the cylinder 1 is inserted in the state where the key 14 is inserted into the keyhole 12 and the tumbler 13 is housed in the cylinder 11.
1 cannot rotate in the clockwise direction (direction A in FIG. 5), but can be rotated substantially 90 ° only in the counterclockwise direction (direction B in FIG. 5). When the lock plate 19 is rotated 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.

When the tumbler 13 projects from the cylinder 11 without inserting the key 14 into the keyhole 12, the tumbler 13 is moved to the left side wall 17b of the cylinder housing portion 18.
When the cylinder 11 is rotated without inserting the key 14, the tumbler 13
Engages with the left side wall portion 17b to prevent the rotation of the cylinder 11, and keeps the lock 9 in a locked state.

[0007]

However, in the conventional operation recorder 1, in the state where the cover case 4 is assembled by fitting the outer edge 8 to the cover body 7, the cylinder 11 constituting the lock 9 is assembled. Is inserted into and accommodated in the cylinder accommodating portion 18 through the cylinder insertion hole 16, so that when the outer edge 8 is externally fitted to the cover body 7, a circumferential direction is provided between the cover body 7 and the outer edge 8. 5 (in the direction C in FIG. 5), a displacement occurs between the cylinder insertion hole 16 and the cylinder accommodating portion 18, and the assemblability when the cylinder 11 is mounted on the lid case 4 is poor. In some cases, the cylinder 11 cannot be mounted on the lid case 4.

Further, even if the cylinder 11 can be mounted in a state where the cover 7 and the front edge 8 are misaligned, if the tumbler 13 that projects in and out of the cylinder 11 is not sufficiently projected, There is a possibility that the tumbler 13 and the wall body 17 of the cylinder accommodating portion 18 may not be engaged, and the lock 9 may be incompletely locked.

The present invention has been made in view of the above points, and is intended to provide an operation recorder that has good assemblability when mounting a cylinder to a lid case and that can reliably prevent incomplete lock of a lock. It is an object to provide a lock structure.

[0010]

In order to achieve the above-mentioned object, the lock structure of the operation recorder according to the present invention comprises a cover, a surface and a cover provided in a main case accommodating a recording mechanism such as a recording needle. In an operation recorder that is provided with a lid case containing a display unit such as a clock body and the like via a hinge so as to be openable and closable by a lock attached to the lid case, a tumbler provided on the cylinder of the lock is provided. A locking wall engageable with the cover is formed on a peripheral portion of a cylinder insertion hole formed on the front edge, and a housing wall forming a housing portion of the cylinder in cooperation with the locking wall is formed on the cover. It is characterized in that it is formed on a body, and the front edge is attached to the cover body to form a lock mounting portion of the lid case.

[0011]

According to the present invention, a locking wall engageable with the tumbler of the cylinder is formed on the front edge of the lid case, and the housing wall forming the housing portion of the cylinder in cooperation with the locking wall is formed. Since it is formed on the cover body of the lid case, the front edge is attached to this cover body to form the lock mounting portion of the lid case,
The front edge can be attached to the cover body while positioning by the cooperative work of the locking wall and the housing wall, and the circumferential displacement between the cover body and the front edge is prevented, so that the cylinder can be easily assembled. It can be a lock structure.

Further, since a locking wall is formed on the periphery of the cylinder insertion hole on the front edge, which is the insertion side of the cylinder, so as to be able to engage with the tumbler of the cylinder. Even in such a case, the positional relationship between the cylinder insertion hole on the front edge and the locking wall is not changed, and the tumbler protruding from the cylinder inserted into the cylinder insertion hole is securely engaged with the locking wall. And a lock structure that does not cause incomplete locking can be obtained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 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 the front of a main case via a hinge 5 so as to be openable and closable includes a clock body and the like. Body 7 for accommodating the mechanism of the display unit
And a front edge 8 which is fitted on the front surface of the cover body 7 and which is attached with a front glass for protecting the display unit. The front upper end of the front edge 8 has a rear surface of the lid case 4. Lock 9 that opens and closes when chart paper is loaded and removed
Is installed.

The lock 9 is provided with a cylinder 11 having a keyhole formed therein.
A tumbler 13 which is housed in the cylinder 11 by inserting the key 4 and projects from the cylinder 11 by removing the key 14 from the keyhole is provided. The cylinder 11 is formed with a ridge 15 extending in the longitudinal direction.
The cylinder 11 rotates in only one direction by abutting on the wall 8.

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 a peripheral portion of the cylinder insertion hole 16 corresponds to a left portion in the cylinder insertion direction. On the back surface of the rim 8, a substantially quarter cylindrical locking wall 21 that can be engaged with the tumbler 13 protruding from the cylinder 11 is formed as described later.

The cover 7 of the lid case 4 includes:
A substantially quarter raised to the front edge 8 side at a position corresponding to the cylinder insertion hole 16 to form a cylindrical cylinder housing portion 18 for housing the cylinder 11 in cooperation with the locking wall 21. The three cylindrical housing walls 22 are formed. When the outer edge 8 is externally fitted to the cover body 7, the end face 21 a of the locking wall 21 is brought into contact with and guided by the end face 22 a of the housing wall 22. There is no circumferential misalignment between the cylinder housing 18 and the cylinder insertion hole 16 formed by the locking wall 21 and the housing wall 22. No lid case 4 can be assembled.

Here, inserted into the cylinder housing portion 18,
The ridge 15 of the accommodated cylinder 11 is
Abuts on the step 22b of the housing wall 22 on the right side in the insertion direction of the cylinder 11, but on the left side of the locking wall 21 on the left side in the insertion direction of the cylinder 11.
Means that the ridge 15 is located in the inner part of the locking wall 21 so that it does not come into contact with the ridge 15, and the key 14 is inserted into the keyhole so that the tumbler 13 is housed in the cylinder 11. Cannot rotate clockwise (direction A in FIG. 1), but can rotate approximately 90 ° only in a counterclockwise direction (direction B in FIG. 1). A lock plate 19 screwed to the insertion end of the cylinder 11 from the back side of the cover body 7 with a set screw 20 is rotated counterclockwise together with the cylinder 11 to lock the main case and the lid case 4. The state is released.

In a state where the tumbler 13 projects from the cylinder 11 without inserting the key 14 into the keyhole, the tumbler 1
The tumbler 13 engages with the locking wall 21 so as to rotate the cylinder 11 without inserting the key 14. Thus, the cylinder 11 is prevented from rotating and the lock 9 is kept locked.

Reference numeral 23 denotes a locking recess 24 of the front edge 8.
Are formed on the cover body 7 to be engaged with the cover body 7, and the assembled state of the lid case 4 is maintained by these engagements. Next, the operation of the present embodiment will be described.

In the present embodiment, the cover body 7 is
When the outside is fitted, the end face 22 of the housing wall 22 of the cover body 7
The end surface 21a of the locking wall 21 of the front edge 8 is brought into contact with and guided by the locking claw 23 of the cover body 7 and the front edge 8.
The outer edge 8 is fitted onto the cover body 7 until the locking recess 24 is engaged, and the lid case 4 is assembled.

In this case, in this embodiment, the lid case 4 is assembled so that the end faces of the housing wall 22 of the cover body 7 and the locking wall 21 of the front edge 8 abut against each other.
The lid case 4 can be assembled in a state where there is no displacement in the circumferential direction between the cover body 7 and the front edge 8. For this reason,
The lid case 4 can be formed without any displacement between the cylinder housing portion 18 formed by the locking wall 21 and the housing wall 22 and the cylinder insertion hole 16 of the front edge 8. The cylinder 11 is inserted into the cylinder housing 18 through the
Can be made good when inserted and stored, and the cylinder 11 can be securely mounted on the lid case 4.

The outer edge 8 on the insertion side of the cylinder 11
A locking wall 21 that can be engaged with the tumbler 13 of the cylinder 11 is formed on the peripheral edge of the cylinder insertion hole 16 of
Even in the event that a displacement occurs between the cover 7 and the front edge 8, the cylinder insertion hole 16 of the front edge 8 and the locking wall 21
The tumbler 1 protruding from the cylinder 11 inserted into the cylinder insertion hole 16 is not changed.
The lock 3 can be securely engaged with the locking wall 21, and the lock 9 can be formed without incomplete lock.

Further, as described above, since the displacement between the cover body 7 and the front edge 8 is eliminated, the hinge 5 formed on the front edge 8 for opening and closing the lid case 4 with respect to the main case can be obtained. Good positioning is achieved. Further, the cylinder housing 18 formed in the conventional cover body 7
A part of the wall 17 is cut away at the back to allow rotation of the cylinder 11 in one direction,
In order to form the cover 7 having the cylinder housing portion 18 via a mold, a slide mold must be included in the mold structure. According to the present embodiment, the locking wall formed on the front edge 8 is used. Since the cylinder accommodating portion 18 is formed by cooperation of the accommodating wall 21 formed on the cover 7 and the accommodating wall 22, a slide mold for forming the cylinder accommodating portion 18 is not required, and the die structure is reduced. The cost can be further simplified and the cost can be reduced.

[0024]

As described above, in the lock structure of the operation recorder according to the present invention, a locking wall engageable with the tumbler of the cylinder is formed on the front edge of the lid case, and the locking wall cooperates with the locking wall. The housing wall forming the housing portion of the cylinder is formed on 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. A lock structure that allows the front edge to be attached to the cover body while performing positioning by cooperating with the wall, preventing the circumferential position displacement between the front edge and the cover body, and providing a good cylinder assemblability. In addition, a locking wall that can be engaged with the tumbler of the cylinder is formed on the periphery of the cylinder insertion hole on the outer edge, which is the cylinder insertion side, so that there is no displacement between the cover body and the outer edge. Even if it occurs, the cylinder insertion hole on the outer edge Positional relationship between the engaging wall is as unchanged, tumbler projecting from the cylinder to be inserted into the cylinder insertion hole comes to positive engagement with the locking wall,
It is possible to obtain an effect that a lock structure without incomplete locking can be provided.

[Brief description of the 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 housing portion of FIG. 1;

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

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

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

[Explanation of symbols]

 DESCRIPTION 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 Protrusion part 16 Cylinder insertion hole 18 Cylinder accommodation part 19 Lock plate 21 Locking wall 22 Containment wall

Claims (1)

(57) [Scope of request for utility model registration] 1. A cover case comprising a cover body and a front edge and containing a display unit such as a clock body can be opened and closed via a hinge with respect to a main case containing a recording mechanism unit such as a recording needle. In an operation recorder that is provided and can be locked by a lock attached to the lid case, a locking wall engageable with a tumbler provided in a cylinder of the lock is provided on a periphery of a cylinder insertion hole formed in the front edge. And a housing wall forming the housing portion of the cylinder in cooperation with the locking wall is formed in the cover body, the front edge is attached to the cover body, and the lock mounting portion of the lid case is formed. The lock structure of the operation recorder, wherein the lock structure is formed.