JP2810856B2 - Handle lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a handle lock used for a vending machine or the like.

[0002]

2. Description of the Related Art In general, a handle lock used in a conventional vending machine or the like is provided with a cam 5 at a rear end of a cylinder lock 51 inserted into a handle 50 as shown in FIG.
2 has been proposed, and a bar 52 is engaged with the end of the cam 52. In the handle lock having such a configuration, since the bar 53 protrudes only in one direction of the circumference, the handle is easily tilted. Also, the cam 52
Since the bar pieces 53 are arranged in series, it is difficult to reduce the length (thickness) of the handle lock in the depth direction.

As a solution to this problem, FIG.
A handle lock having a configuration as shown in FIG.
In the handle lock, an inner case bolt 55 is inserted into the inner periphery of the handle case 54, and a cylindrical portion 56 of the handle is inserted into the inner case bolt 55. A cam 57 is rotatably supported on the cylindrical portion 56 by an inner cylinder 58 of a lock. The bar member 59 is rotatably supported with respect to the shaft 60, and is provided so as to be able to protrude from a protruding hole 61 formed in the cylindrical portion 56 of the handle.

[0004]

By the way, in the conventional handle lock shown in FIG. 12 described above, since the bar 53 protrudes only in one direction of the circumference, the handle is liable to tilt, and is caught halfway, as if locked. However, this causes incomplete lock, which protrudes due to some external force. Further, as described above, the cam 52 is mounted on the inner cylinder of the lock and the bar member 53 is engaged in series with the cam 52. Therefore, in order to reduce the length of the handle lock in the depth direction, There was a limit.

Further, in the example shown in FIG. 13, since the bar member 59 projects on both sides of the cylindrical portion of the handle, the handle or the like can be prevented from tilting. Since it is supported, it is necessary to increase the size of the projecting hole 61 and the projecting hole formed in the inner case bolt. For this reason, there is a disadvantage that the mechanical strength of the handle is reduced by reducing the cross-sectional area at the projecting hole of the bar member 59. That is, since a large projecting hole must be formed, a sudden change in the cross-sectional area at this portion causes stress concentration, and there is a risk that the cylinder body of the handle may be broken by an external impact or prying with a bar.

SUMMARY OF THE INVENTION An object of the present invention is to provide a handle lock in which the strength is increased, the fracture resistance is improved, and the depth can be reduced in view of the above-mentioned conventional disadvantages.

[0007]

A handle lock according to the present invention comprises a handle case fixed to a door, an inner case bolt rotatably mounted on the handle case, and an inner case bolt in the handle case. And a handle that is biased to project outwardly,
A lock having an inner cylinder and an outer cylinder fixed by fixing brackets in a cylindrical portion of the handle, and disposed in the cylinder of the handle,
A cam rotating with the rotation of the inner cylinder is biased by a spring so as to protrude linearly from the cylinder , and is positioned in a radial direction so as to be retracted by the rotation of the cam.
It comprises a pair of bar members arranged in parallel with a fixed interval .

[0008]

As described above, according to the handle lock according to the present invention, the pair of bar members are rotated by the cam to rotate the handle cylindrical portion.
Since linearly retractable from the projection hole can be reduced, it is possible to prevent an abrupt change in cross-sectional area of the handle and the inner casing bolt, it can increase the mechanical strength. Further, since the bar member can be arranged in parallel with the cam, the dimension in the depth direction can be reduced.

[0009]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view of a handle lock according to one embodiment of the present invention, FIG. 2 is an exploded vertical sectional view of the handle lock according to one embodiment of the present invention, and FIG. 3 is a cross-sectional view illustrating an operation state of the handle lock. It is.

The handle lock 10 includes a handle case 11 fixed to the door side, an inner case bolt 12 rotatably mounted on the handle case 11, and a part of the handle case 11 in which the inner case bolt 12 is provided. Handle 1, which is housed through and is urged to protrude outward.
3 and a fixing bracket 14 in the cylindrical portion 13a of the handle 13.
Lock 15 having an inner cylinder 15a and an outer cylinder 15b fixed by
A cam 16 disposed in the cylinder 13a of the handle 13 and rotating with the rotation of the inner cylinder 13a; and a pair of bar members 17 linearly protruding and retracting from the cylinder 13a by the rotation of the cam 16. It is composed of

Here, as shown in FIG. 2, the handle case 11 is formed in a T-shape by a cylindrical portion 11a and a mounting portion 11b orthogonal to the cylindrical portion 11a. Further, a concave portion 18 with which the bar member 17 is engaged is formed in the inner peripheral portion of the cylindrical portion 11a, and a through hole 11c into which the rear end of the inner case bolt 12 is inserted is formed in the rear end portion. Have been. On the other hand, the handle storage 11
d, and is fixed with screws or the like with the back side of the mounting portion 11b abutting.

The inner case bolt 12 is, as shown in FIG.
A compression spring 21 is rotatably mounted in the cylindrical portion 11a of the handle case 11, and urges the handle 13 in the protruding direction inside. Further, a protruding hole from which the bar member 17 protrudes is formed.

The handle 13 has a cylindrical body 13a inserted into the cylindrical part 11a through the inner case bolt 12, and a gripping part 13b provided orthogonal to the cylindrical body 13a.
It has a substantially T-shape. The inner case bolt 12 is urged in a direction protruding from the handle case 11 and the inner case bolt 12 by a compression spring 21 disposed behind the inner case bolt 12. A lock 15 is fixed to a lock storage hole 20 on the front of the handle 13 with a fixing bracket 14.

An inner cylinder 15 rotatably provided on the lock 15
A cam 16 is mounted on a. By unlocking the lock 15, the inner cylinder 15a and the cam 16 can be rotated. As shown in FIGS. 10 and 1
As shown in FIG. 1, a pair of bar members 17 are provided, and are urged by a spring 24 in a direction in which the bar members 17 protrude linearly from the protruding holes 13c. Here, the bar member 17 penetrates through the protrusion hole 13c of the cylindrical body 13a and the protrusion hole of the inner case bolt 12, and engages with the concave portion 18 of the handle case 11.

The cam 16 having the point-symmetric operation pieces 16a, 16a linearly retracts the bar member 17 against the spring 24 with the rotation of the inner cylindrical portion 15a of the lock 15. When the bar member 17 is retracted, as shown in FIGS.
The handle 13 protrudes due to the urging force, and becomes rotatable. At this time, the vending machine door can be opened by turning the handle 13 while holding the grip 13b.

As shown in FIGS. 2 to 5, the fixing bracket 14 has a mounting hole 2 formed in a front portion of the cylindrical body 13a of the handle 13.
5 is inserted at right angles to the insertion direction of the lock 15. The fixing bracket 14 has a substantially U-shaped cross section and has a lock 15.
Are arranged so as to sandwich the notched locking part from both ends, and lock 15 is fixed. Further, since the fixing bracket 14 is fixed with screws (not shown), it does not fall off due to external force such as vibration.

Next, the operation of the handle lock 10 configured as described above will be described. First, when unlocking the handle lock, the lock 15 is unlocked with a key, and the inner cylinder 15a is unlocked.
Is rotated. When the inner cylinder 15a rotates, the cam 16 engaged with the inner cylinder 15a rotates. When the cam 16 rotates, FIG.
As shown in FIG. 11, the operation piece 16a arranged symmetrically with respect to the point rotates to lower the contact portion 17a of the bar member 17 against the spring 24.

The contact portion 17a is pulled down, and the bar member 17
Is retracted, the engagement notch 12b of the inner case bolt 12
From the handle case 11, and further from the concave portion 18 formed around the cylindrical portion 11a of the handle case 11. Handle 13
Project forward by the urging force of the compression spring 21.

When the handle 13 projects, as shown in FIGS. 5 and 6, the handle 13 and the inner case bolt 12 rotate integrally and a lock (not shown) is fixed by a bolt fixed to the rear end of the inner case bolt 12. By activating the mechanism, the door of the vending machine can be opened.

When the door of the vending machine is locked, the key is removed from the lock 15, the handle 13 is returned to a predetermined angle, and then the handle 13 is pushed into the handle housing 11d of the handle case 11. Then, the bar member 17 protrudes outward at the engagement notch 12b, and the engagement notch 12b of the inner case bolt 12 is formed.
Then, the lock is completed by engaging with the concave portion 18 of the handle case 11.

However, even if the pushing of the handle 13 is incomplete for some reason, for example, one of the bar members 17 is formed symmetrically on the inner case bolt 12 as shown in FIG. The handle 13 does not jump out due to vibration or the like because it engages with the notch 12c. Therefore,
Although the operator thinks that the lock has been performed, one of the bar members 17 is engaged with the engagement notch 12c even when the handle 13 is not completely retracted, so that even if any force is applied, the bar 13 does not come off and is safe.

As described above, since the bar members 17 are arranged 180 degrees symmetrically with respect to the axis, when the handle case 11 is locked, the handle case 11 is locked in an inclined state as in the related art, or has a backlash. I do not have to. Further, since the bar member 17 is engaged with both the concave portion 18 of the handle case 11 and the engagement notch of the inner case bolt 12, a secure locking effect can be obtained.

In the above embodiment, the case where the handle 13 protrudes in one step has been described. However, as shown in FIGS.
By changing the shape of b, it can be configured to protrude in two stages. That is, when the cam 16 is rotated by a predetermined angle, the bar member 17 is disengaged from the recess 18 and moves forward in the engagement notch 12b to a predetermined position, whereby the primary protrusion amount of the handle 13 is determined (see FIG. 7).

Next, the cam 16 is further rotated, and the bar member 17 is rotated.
Is completely retracted from the inner circumference of the inner case bolt 12, the handle 13 projects to the maximum extent due to the urging force of the compression spring 21 (see FIGS. 5 and 6). In this way, by changing the amount of protrusion of the handle 13, it is possible to change the part to be operated by the vending machine.

The present invention is not limited to the above-described embodiments, and various design changes can be made based on the technical concept of the present invention.

[0026]

As described above in detail, according to the handle lock of the present invention, the handle case fixed to the door side, the inner case bolt rotatably mounted on the handle case, and the handle A handle housed in the case via an inner case bolt, and urged to protrude outward, a lock having an inner cylinder and an outer cylinder fixed by fixing brackets in a cylindrical portion of the handle, and A cam disposed in the cylinder of the handle, and rotated by the rotation of the inner cylinder, is biased by a spring so as to linearly protrude from the cylinder , and is retracted by the rotation of the cam. Since it is composed of a pair of bar members arranged in parallel with a predetermined interval in the radial direction, the protrusion of the bar member of the cylinder portion of the handle can be reduced, so that the cross-sectional area at this portion is reduced. Prevent It is possible to increase the overall strength. Further, since a bar member can be arranged right beside the cam member, the depth can be shortened and the vending machine can be made thinner. Further, simply by pushing the handle into the handle case, the bar member is automatically projected and locked.

Further, since the bar members are arranged symmetrically in the left and right directions, the bar portions project almost symmetrically in two directions, so that there is no danger that the bar will be cut off and the handle will not tilt with respect to the handle case.

[Brief description of the drawings]

FIG. 1 is a front view of a handle lock according to an embodiment of the present invention.

FIG. 2 is an exploded vertical sectional view of a handle lock according to one embodiment of the present invention.

FIG. 3 is a sectional view showing an operating state of the handle lock.

FIG. 4 is a sectional view showing an operating state of the handle lock.

FIG. 5 is a sectional view showing an operating state of the handle lock.

FIG. 6 is a sectional view taken along line AA of FIG. 1 showing an operation state showing another embodiment of the handle lock.

FIG. 7 is a sectional view taken along the line AA of FIG. 1, showing an operating state showing another embodiment of the handle lock.

FIG. 8 is a diagram showing an operation state of the handle lock in FIG.
FIG. 3 is a sectional view taken along line A.

FIG. 9 is a cross-sectional view of the handle lock.

FIG. 10 is an enlarged sectional view showing a bar portion of the handle lock.

FIG. 11 is an enlarged sectional view showing a bar portion of the handle lock.

FIG. 12 is a longitudinal sectional view showing an example of a conventional handle lock.

FIG. 13 is a longitudinal sectional view showing a bar member of another conventional handle lock.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Handle lock 11 Handle case 11a Cylindrical part 11b Attachment part 11c Through-hole 11d Handle storage part 12 Inner case bolt 12b Engagement notch 13 Handle 13a Cylindrical body 13b Gripping part 13c Protruding hole 14 Fixture 15 Lock 15a Inner cylinder 15b Outer cylinder 16 Cam 16a Working piece 17 Bar member 17a Contact portion 18 Recess 20 Lock storage hole 21 Compression spring 24 Spring 25 Mounting hole

Claims (1)

(57) [Claims] 1. A handle case fixed to a door side, an inner case bolt rotatably provided in the handle case, and housed in the handle case via the inner case bolt, and protrudes outward. And a lock having an inner cylinder and an outer cylinder fixed in the cylindrical portion of the handle with fixing brackets, and a lock disposed in the cylinder of the handle and rotating with the rotation of the inner cylinder. And a spring which is urged by a spring so as to protrude linearly from the cylinder , and which is radially retracted by the rotation of the cam.
A handle lock comprising a pair of bar members arranged in parallel at a predetermined interval .