JPH07293077A - Handle lock - Google Patents

Abstract

PURPOSE:To automatically lock the door of an automatic vending machine even when a handle is received completely in a case by controlling the quantity of a gate bar member projected by the angle of rotation of a cylinder lock. CONSTITUTION:A pair of gate gar members 7, in which front ends are energized by a spring so as to be mutually opened in the symmetric directions, are disposed around a cam 6 at the rear end of a cylinder lock 5 incorporated into a handle 4. An engaging groove 8, a shallow groove 8a and a peripheral groove 8b are formed continuously to a surface oppositely faced to the gate bar member 7 of the inner circumference of the through-hole 2d of the cylindrical body 2a of a handle case 2. According to such constitution, the quantities of the gate bar members 7 projected are controlled at a plurality of stages by the angle of rotation of the cylinder lock 5. When the handle 4 is not stored completely in the handle case 2, a door for an automatic vending machine is locked by one gate bar member 7 by moving the gate bar members 7 in the continuous engaging grooves 8, 8a, 8b even when an operator misunderstands the door as locking by rotational load from the gate bar member 7 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle lock used for locking and unlocking automatic vending machines and the like.

[0002]

2. Description of the Related Art Generally, handle locks as shown in FIG. 12 are used in vending machines and the like. This handle lock 20 is a handle case 2 attached to a door 21.
The inner case 24 is housed in the second cylindrical body 23, and the handle 26 having the cylinder lock 25 is inserted into the inner case 24.

The handle 26 is constantly biased by a compression spring 26a in a direction projecting outward from the handle case 22, and a bar member 27 provided on a cam 25a at the rear of the cylinder lock 25 has an engaging groove 22a in the handle case 22.
To restrict the protrusion.

When the handle lock 20 is unlocked, the key 26 is inserted into the cylinder lock 25 and the cam 25a is rotated to disengage the bar members 27 from the engagement grooves 22a so that the handle 26 is projected from the handle case 22. At the same time, by rotating the handle 26, the engagement of the barb piece 24a at the rear portion of the inner case 24 is released.

On the other hand, when locking, the handle case 2
When the handle 26 projecting from 2 is rotated to engage the barb piece 24a and then the handle 26 is pushed into the handle case 22, the barb member 27 is engaged with the engagement groove 22a and the handle 26 is inserted into the handle case 22. It is stored.

[0006]

However, the above-described handle lock mechanism has a problem that an incomplete lock is likely to occur when locking. The reason for this is that if some rotational load is applied from the side of the barb piece 24a when the handlebar 26 is pushed into the handle case 22, the side surface of the handlebar 26 comes into contact with the inner surface of the handle case 22 without the barb piece 24a being locked, and friction occurs. This is because the force increases, and the operator mistakes that the lock is completed and stops the locking operation here.

However, in reality, the handle 26 is in an incompletely locked state in which the handle 26 is slightly protruded from the handle case 22 due to the above-mentioned frictional force, so that an external force such as vibration is applied to the frictional force. When it is released, there is a problem that the handle 26 projects from the handle case 22 and is unlocked without a key.
This was unlocked without leaving any traces of its destruction, which was a serious problem from the perspective of crime prevention.

[0008] Further, a person who supplies only merchandise and a person who collects money are distinguished from each other due to a request from the management of the vending machine, and the key which the person who supplies the product has is a part which collects money. There was a desire for a handle lock that cannot be unlocked. In other words, with the first key, the handle lock turns only about 45 degrees, and only the product supply part of the vending machine can be unlocked, and with the second key, it can be rotated 90 degrees or more to unlock the money storage part. Is what you can do. However, due to the difference in the conventional keys, in the structure in which the handle lock is rotated in two steps, there is a drawback that the handle operation is heavy when it is projected one step and the workability is poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a handle lock which can be locked not only when the handle is completely stored in the handle case but also when not completely stored. Is to provide. Further, the angle at which the handle can be operated by the key is different, and management can be performed according to the purpose of the operator of the vending machine.

[0010]

A handle lock of the present invention for solving the above problems is a handle case fixed to a door side, and is rotatably housed in the handle case. An inner case that operates a barb for locking the door to the main body at the rear end side; a handle that accommodates and stores a tubular body part in the inner case via a repulsion spring to rotate the inner case; A cylinder lock built in the tubular part of the handle, and a pair of bar members that are built in the tubular part of the handle and project in and out in the radial direction of the cylinder due to the rotation of the cylinder lock. The protrusion amount of the bar members is controlled in a plurality of steps, and the handle protrudes in a plurality of steps by the engagement groove formed on the inner surface of the handle case with which the bar members engage.

The amount of protrusion of the bar members is controlled by a cam provided at the rear end of the inner cylinder of the cylinder lock. Furthermore, the amount of protrusion of the handle from the handle case is determined by the amount of protrusion of the bar members and the engagement groove formed on the inner surface of the handle case.

[0012]

According to the above construction, when the handle protruding from the handle case is pushed into the handle case by one step, both of the bar members become the first engaging grooves of the handle case in a state where the handle is not completely housed in the handle case. It is inserted and locked further. In this case, the handle slightly protrudes from the handle case and can be rotated about 45 degrees, and the bar members rotate without coming into contact with the inner circumference of the handle case, so that the handle can be operated lightly.

When the handle is pushed further into the handle case, one bar member moves through the long hole to move the second handle.
It is engaged with the engaging groove of and is in a one-side locked state. In this case, the handle is incompletely housed in the handle case.

Therefore, when the handle is slightly projected from the inside of the handle case, that is, when the handle is pushed into the handle case, the side surface of the handle comes into contact with the inner surface of the handle case due to the rotational load from the bar member side, and the operator receives the frictional force. Even if the user misunderstands, the lock is locked by one of the bar members 7.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 is a front view showing an example of a handle lock of the present invention, FIG. 2 is an exploded sectional view of the handle lock,
3 is a front view of the handle case, FIG. 4 is a sectional view of the handle case showing a state in which the inner case is stored, and FIG.
[Fig. 4] is a side view of the inner case.

The handle lock 1 is housed in the handle case 2, which is fixed to the door side, the inner case 3 which is housed in the handle case 2, and which is biased to project outward. Handle 4, a cylinder lock 5 attached to the handle 4, and a pair of bar members 7 arranged around the cam 6 of the cylinder lock 5 so as to face each other.
It consists of and.

As shown in FIGS. 2 and 3, the handle case 2 includes a cylindrical body 2a and a mounting portion 2 orthogonal to the cylindrical body 2a.
It is formed in a T shape by b and the mounting portion 2b has a handle storage portion 2c, and a through hole 2d into which the inner case 3 is inserted is formed in the cylindrical body 2a.

A mounting hole 2e for mounting a switch or the like for detecting whether or not the handle is completely stored is formed in a part of the handle storing portion 2c. A raised cylindrical portion 2f for waterproofing is formed around the mounting hole 2e. Further, as shown in FIGS. 2 to 4, a cutout portion M is formed over a predetermined depth length at the entrance portion of the upper edge on the front side of the portion where the cylindrical body 4a of the handle 4 rotates. Into the cutout portion M, the upper end padding portion 4c of the handle 4 described later is inserted.

Engagement grooves 8 with which the bar members 7 are engaged are formed on the inner surface of the through hole 2d of the cylindrical body 2a facing the one bar member 7, and these engagement grooves 8 are formed. Is formed in the longitudinal direction of the cylindrical body 2a. Further, the shallow groove 8a is continuous with the peripheral groove 8b formed over the entire circumference of the through hole 2d. Here, shallow groove 8a
And the circumferential groove 8b have substantially the same depth. Therefore, one of the bar members 7 engages with the engagement groove 8, the shallow groove 8a, and the circumferential groove 8b according to the amount of protrusion.

Further, on the front side of the cylindrical body 2a, as shown by an imaginary line in FIG. 2, an engaging groove 8'for engaging with the other bar member 7 is formed.
Are formed long up to the position 8-1. This engaging groove 8'is also continuous with the peripheral groove 8b via the shallow groove 8'a.

The inner case 3 housed in the through hole 2d of the handle case 2 is slidably inserted into the outer periphery of the cylindrical body 4a of the handle 4, and is disposed between the rear end surface of the handle 4 and the handle 4a.
A repulsion spring 9 for urging in a direction of projecting is mounted.

On the side surface of the inner case 3, as shown in FIG. 5, a pair of left and right elongated holes 10 are formed asymmetrically.
An incomplete prevention lock step portion 10a-1 and a one-step lock step portion 10b are formed in a step shape on one side. Further, a step portion 10c which is engaged when the bar member 7 is most retracted is formed on the frontmost side. On the other side, a complete lock step portion 10a and a single-step lock step portion 10b are formed stepwise.
Here, the incomplete prevention lock step 10a-1 is formed longer than the complete lock step 10a.

The complete lock step portion 10a, the incomplete prevention lock step portion 10a-1 and the single step lock step portion 10b are engaged with the bar member 7 in accordance with the protruding amount thereof. When the member 7 is most protruded, it is engaged with the complete lock step 10a of the inner case 3, and when it is retracted one step, it is engaged with the incomplete prevention lock step 10a-1 and is further protruded. Then, it engages with the one-step locking step portion 10b.

Further, the engaging groove 8 of the handle case 2,
8 ', the shallow groove 8a and the peripheral groove 8b are engaged with each other so that the bar members 7 are arranged in a pair so as to surround the cam 6 at the rear portion of the inner cylinder 5a, and the tips open symmetrically with respect to the pin 7a. Thus, it is biased by the spring 7b.

Therefore, when the handle 4 is housed in the handle case 2 as shown in FIGS. 10 to 11, the tip of the bar member 7 projects from the elongated hole 10 and the engaging groove 8 of the handle case 2, 8 is engaged with each other to prevent the handle 4 from projecting, and the rotation of the cam 6 causes the tips to be disengaged from the engaging grooves 8 and 8 to engage with the shallow groove 8a and the peripheral groove 8b. Allows stepwise protrusion.

On the other hand, when the bar members 7 are located on the stepped portion 10c of the elongated hole 10, the bar 4 is completely retracted, and the handle 4 is in the most protruding state from the handle case 2.

The handle 4 is formed in a substantially T-shape by a cylindrical body 4a inserted into the cylindrical body 2a of the handle case 2 and a grip portion 4b provided orthogonal to the cylindrical body 4a. A cylinder lock 5 is screwed to a nut 13 fixed to the body 4a with a screw 13a.

Then, as shown in FIG. 6, a U-shaped rotation stopper 14 is inserted into the mounting hole 14a of the cylindrical body 4a, and the tip thereof is brought into contact with the notch surface 5c of the outer cylinder 5b of the cylinder lock 5 and Prevents rotation.

Next, the operation method of this handle lock will be described.
This will be described with reference to FIGS. 6 and 7 show a state in which the handle 4 is maximally projected from the handle case 2, that is, a state in which the door can be opened by rotating the handle 4 90 degrees or more in this state.

In this case, the bar members 7 are, as shown in FIG.
It is completely immersed from the outer circumference of the inner case 3. Therefore, the rotation of the handle 4 is restricted by the rotation restriction member (not shown). The rotation angle can be freely set by this rotation restricting member.

When the handle 4 is pushed further into the handle case 2 from this state, the bar members 7 as shown in FIGS. 8 and 9 are locked by the circumferential groove 8b.
In this state, the handle 4 is capable of rotating to the left and right by 45 degrees, with the upper end buildup portion 4c being restricted by the cutout portion M of the handle case 2.

Next, when the handle 4 is pushed further inward from this one-stage locked state, the bar members 7 project left-right asymmetrically. That is, the bar members 7 corresponding to the incomplete prevention locking step portion 10a-1 of the inner case 3 completely project and engage with the 8-1 position of the engaging groove 8'of the handle case 2.
Therefore, for example, when some rotational load is applied to the handle 4 and the side surface of the grip portion 4b comes into contact with the inner surface of the handle case 2 and it is mistaken that the operator is completely locked by the frictional force, that is, the handle 4 is One of the bar members 7 is still locked in the engagement groove 8 ′ even if it is projected from the handle case 2. This can prevent incomplete locking.

When the handle 4 is further pushed in, the bar members 7 are engaged with the engaging grooves 8 and are completely locked, as shown in FIGS. In this case, the handle 4 is completely stored in the handle case 2.

The operations of the single-stage lock and the complete lock can be performed in the order of the single-stage lock and the complete lock, respectively, but it is also possible to omit the single-stage lock and perform the complete lock from the beginning.

Next, the case where the key is inserted into the cylinder lock 5 to unlock it from the completely locked state will be described. First, the key is inserted into the cylinder lock 5 and the cam 6 is rotated. Then, as shown in FIGS. 8 and 9, the bar members 7 are retracted by one step, and are engaged with the circumferential groove 8b through the engaging groove 8 of the handle case 2 through the shallow groove 8a. At this time, the handle 4 projects to the one-step locked position by the urging force of the repulsion spring 9.

In this state, the handle 4 is restricted by the cutout portion M and can rotate about 45 degrees left and right. At this time, the barbs (not shown) fixed to the rear end of the handle case 2 can unlock the product storage unit door of the vending machine. If the cylinder lock 5 is set with a key that can be rotated only up to this position, the person holding this key can only replenish the goods.

Further, when the cam 6 is rotated by the key, the bar members 7 are completely retracted from the outer circumference of the inner case 3. Then, the handle 4 is projected by the biasing force of the repulsion spring 9 and can freely rotate as shown in FIGS. In this state, by operating the barbs fixed to the rear end of the handle case 2, the cash storage section of the vending machine can be unlocked.
Up to this point, a person with a rotatable key can carry out the cash storage work of the vending machine.

Since the cylindrical portion 2f is provided around the mounting hole 2e of the handle case 2 and the rubber 20 is provided inside the gripping portion 4b arranged opposite to the cylindrical portion 2f, when the handle 4 is housed, the switch mounting portion is The waterproofness of the surrounding area can be improved. Even if the rubber 20 is not provided, the cylinder portion 2f alone can be sufficiently waterproofed.

[0039]

As described above, the handle lock according to the present invention includes the handle case fixed to the door side.
An inner case that is rotatably housed in the handle case and that operates a barb for locking the door to the main body at the rear end side, and a tubular body portion are engaged in the inner case via a repulsion spring. A handle that is housed together and rotates the inner case, a cylinder lock that is built in the tubular portion of the handle, and a pair that is built in the tubular portion of the handle and that appears in and out in the radial direction of the tubular body due to rotation of the cylinder lock. The barb member is controlled by a rotation angle of the cylinder lock to control the protruding amount of the barb member in a plurality of steps, and the handle has a plurality of steps by an engaging groove formed on the inner surface of the handle case with which the barb member engages. When the handle is pushed into the handle case, even if the side of the handle hits the inner surface of the handle case due to the rotational load from the bar member side and the operator misunderstands due to the frictional force. Tsu can click. Further, even when the handle is further pushed into the handle case from this state, the handle can be completely locked, so that the two-step lock can be performed.

When a key that can rotate the inner cylinder of the cylinder lock only about 45 degrees and a key that can rotate more than 90 degrees are set, the unlockable portion of the vending machine is distinguished by the key, and cash management and product Can be managed separately. Further, since the cylindrical portion and the rubber are arranged around the mounting hole, the waterproof property around the switch can be improved.

Further, even if the handle is extended one step, the barbs are rotated while being regulated by the groove of the inner case without coming into contact with the inside of the handle case, so that the handle can be operated extremely lightly.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a handle lock of the present invention.

FIG. 2 is an exploded sectional view of the handle lock.

FIG. 3 is a front view showing a handle case of the handle lock.

FIG. 4 is a cross-sectional view of the handle case showing a state where the inner case is stored.

FIG. 5 is a side view of an inner case used for the handle lock.

FIG. 6 is a sectional view of the handle lock showing a state where the handle is completely projected.

FIG. 7 is an end view taken along the line dd of FIG.

FIG. 8: The state in which the handle sticks out by the first step (one-step lock)
FIG. 6 is a cross-sectional view of the handle lock showing

9 is an end view taken along line cc of FIG. 7. FIG.

FIG. 10 is a sectional view of the handle lock showing a state where the handle is completely locked (completely locked).

11 is an end view taken along the line bb of FIG.

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

[Explanation of symbols]

 1 Handle lock 2 Handle case 2a Cylindrical body 2b Mounting part 2c Handle storage part 2d Through hole 3 Inner case 4 Handle 4a Cylindrical body 4b Gripping part 4c Upper end buildup part 5 Cylinder lock 6 Cam 7 Bar bar member 8 Engagement groove 8a Shallow groove 8b Circumferential groove 9 Repulsion spring 10 Long hole 10a Step part for complete lock 10a-1 Step part for incomplete prevention lock 10b Step part for one-step lock 10c Step part 12 Storage part

Claims (6)

[Claims] 1. A handle case fixed to the door side, an inner case rotatably housed in the handle case, and operating a barb for locking the door to the main body at the rear end side, A handle for rotating and operating the inner case by engaging and storing a tubular body portion in the inner case through a repulsion spring, a cylinder lock built in the tubular body portion of the handle, and a built-in cylinder body portion of the handle It is composed of a pair of bar members that are projected and retracted in the radial direction of the cylinder by the rotation of the cylinder lock, and the protrusion amount of the bar members is controlled in a plurality of stages according to the rotation angle of the cylinder lock, and the bar members are engaged. A handle lock characterized in that the handle is projected in a plurality of steps by an engagement groove formed on the inner surface of the handle case. 2. The handle lock according to claim 1, wherein the protrusion amount of the barb member is controlled by a cam provided at the rear end of the inner cylinder portion of the cylinder lock. 3. The handle lock according to claim 1, wherein an amount of protrusion of the handle from the handle case is determined by an amount of protrusion of a barb member and an engagement groove formed on an inner surface of the handle case. . 4. The amount of protrusion of the bar members from the inner case is 2
The handle lock according to claim 1, wherein the handle lock protrudes in stages. 5. The handle according to claim 1, wherein the amount of protrusion of the handle from the handle case has three levels depending on the amount of protrusion of the bar members and the engagement groove formed on the inner surface of the handle case. Lock. 6. The handle portion of the handle case, wherein a cylindrical portion is formed around a mounting hole provided in the handle storing portion, and a rubber is disposed in a handle gripping portion which is arranged opposite to the cylindrical portion. Handle lock.