JP3062129B2 - Auxiliary lock devices such as vending machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an auxiliary lock device used in a vending machine or the like.

[0002]

2. Description of the Related Art In general, in a vending machine installed on a street, an auxiliary lock device such as a chain lock is used in addition to a normal door lock handle device for improving security.
In this chain lock, one end of the chain is fixed to a fixed frame of a vending machine, and the free end of the chain which is hung over the door is restrained by a lock device provided on the door.

However, in the chain lock, since the chain is exposed, there is a problem that the chain is cut by a tool such as a cutter. In addition, if the diameter of the chain is increased so as not to be cut, the weight of the chain lock itself increases and the operability deteriorates, and the entire chain lock becomes larger and the chain lock protrudes into the sidewalk.

As an alternative to a chain lock, a compact auxiliary lock device has been proposed in Japanese Patent Application Laid-Open No. 8-135270. The auxiliary lock device includes a deadbolt that connects a first engagement member and a second engagement member fixed to a fixed frame body such as a vending machine, and a lock unit that locks the deadbolt to the first engagement member. And the lock unit is connected to the base of the deadbolt.

However, in this auxiliary locking device, in the unlocked state, the dead bolt is removed from both the locking hole of the first engaging member and the locking hole of the second engaging member, and the dead bolt is removed. Since the door is completely separated from the second engaging member, the deadbolt may be lost while the door is opened and the product is refilled or the sales proceeds are collected, or the deadbolt may be left on the road surface. There is a risk that dead bolts and lock units may be distorted or deformed by being stepped on or pressed by heavy objects.

[0006] An auxiliary lock device for solving the distortion of the dead bolt and the lock unit has been proposed in Japanese Patent Application No. 8-281787. In this auxiliary locking device, the dead bolt is not separated from the first engagement member, and there is no danger of the dead bolt being lost or damaged.

However, in this auxiliary locking device, since the locking hole of the second engaging member is located at the lower end of the second engaging member,
Another disadvantage is that the lock arm of the second engagement member having the locking hole is broken by a tool such as a bur.

[0008]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an auxiliary lock for a vending machine or the like that can prevent loss of a shackle or deformation of a shackle, and can accurately lock a lock arm and a first engagement member from violent destruction. It is to provide a device.

[0009]

Means for Solving the Problems Hereinafter, with reference to the reference numerals in the accompanying drawings, in the auxiliary lock device of the present invention,
A shaft hole 4 into which the shackle 3 is inserted is provided in the first engagement member 2 attached to one of the fixed frame 13 and the door 14 of a vending machine or the like, and a second hole attached to the other of the fixed frame 13 and the door 14. A lock arm 7 is pivotally attached to the engagement member 8 by a shaft 6, and a lock hole 5 for engaging and disengaging the shackle 3 is provided in the lock arm 7. Guard ribs 36 are formed in a continuous wall shape so as to surround the shackle 3, and when the shackle 3 is pushed into the first engagement member 2, the claw 9 engages with the receiving groove 25 of the shackle 3.
When the claw 9 is disengaged from the receiving groove 25 by operating the lock unit 1 provided on the first engagement member 2 by moving and biasing the shackle 3
Is pushed into the shaft hole 4 of the first engagement member 2, and the push pin 11 is
When the shackle 3 is disengaged from the lock hole 5 of the lock arm 7, the stopper pin 12 moved and urged by the spring 26 engages with the receiving groove 25, and the shackle 3 is projected. The lock arm 7 is stopped, and the lock arm 7 is turned around the shaft 6 in the evacuation direction . In addition, lock arm 7
Of the lock arm 7 and the split groove 27
The first engaging member 2 and the second engaging member 2
A flange portion 7b for concealing a boundary portion of the engagement member 8;
To conceal the boundary between the lock arm 7 and the second engagement member 8.
The flange 7bc is provided so as to project .

The door 14 is hingedly connected to the fixed frame 13 at the end opposite to the side where the auxiliary lock device is mounted. When the door 14 is closed, the shackle 3 is pushed into the shaft hole 4 of the first engagement member 2 over its entire length as shown in FIGS. In the door locked state, the central portion of the shackle 3 is inserted into the lock hole 5 of the lock arm 7 of the second engagement member 8. When the key is inserted into the lock unit 1 and turned in a predetermined direction, the tip of the claw 9 escapes from the receiving groove 25 of the shackle 3, and the shackle 3 is protruded by the push pin 11 urged by the spring 24. Slide.
The protrusion of the shackle 3 is stopped by the stopper pin 12 engaging with the receiving groove 25 of the shackle 3, and the shackle 3 is not separated from the first engagement member 2.

When the shackle 3 moves to the projecting position in this manner, the shackle 3 is
, And the lock of the second engagement member 8 with the first engagement member 2 is released. Therefore, if the separately provided door lock handle device is in the unlocked state, the door 14 can be released. The lock arm 7 is retracted and rotated about the shaft 6 in the direction of the arrow in FIG.

After replenishment of goods or collection of sales proceeds, the door is closed and the fixed frame 13 is locked by the door lock handle device.
Locked against. Thus, when the door 14 is in the closed state, the lock hole 5 of the lock arm 7 of the second engagement member 8 faces the shaft hole 4 of the first engagement member 2. Then, when the projecting portion of the shackle 3 is pushed into the first engagement member 2, the shackle 3 is pushed into the shaft hole 4 of the first engagement member 2 and the lock arm 7.
Is inserted over both of the lock holes 5. At the initial stage of pushing the shackle 3, the stopper pin 12 escapes from the receiving groove 25 of the shackle 3.
And engages with the receiving groove 25.

The engagement of the claw 9 with the receiving groove 25 of the shackle 3 prevents the shackle 3 from projecting and being restrained at the pushed position. The engagement between the shackle 3 and the claw 9 is maintained by the urging of the spring 18. Thus, the first engagement member 2 and the second engagement member 8 are locked in the connected state,
The door 14 is also locked to the fixed frame 13 by the auxiliary locking device.

In this auxiliary locking device, even when the interconnection between the first engaging member 2 and the second engaging member 8 is released,
Since the shackle 3 is partially fitted in the shaft hole 4 of the first engagement member 2 and is not removed from the first engagement member 2, accidents such as loss of the shackle 3 and distortion deformation can be accurately performed. Is prevented. Further, the lock arm 7 is connected to the second engagement member 8.
Is rotatable about the shaft 6, even if the position of the fixed frame 13 and the door 14 is misaligned, the misalignment is absorbed and the shackle 3 and the lock hole 5 are accurately aligned. Can be performed and workability is good.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, a split groove 27 is provided in a middle portion of a main body portion 8a of a second engaging member 8 except for upper and lower sleeve portions 31, 32, and a base end of a lock arm 7 is provided. The lock arm 7 is protected by the upper and lower sleeve portions 31 and 32 in the closed state in which the second engagement member 8 is connected to the first engagement member 2 because the lock arm 7 is fitted in the split groove portion 27.

As shown in FIG. 3, the front end of the claw 9 is engaged with and disengaged from the receiving groove 25 at the front end of the shackle 3, and the eccentric cam joint 10 for driving the claw 9 backward is connected to the rotor 15 of the lock unit 1. Have been. The rotor 15 of the lock unit 1 is non-rotatably locked to the fixed main body of the lock unit 1 by a pin tumbler lock mechanism or the like. The first engaging member 2 is fastened and fixed to a fixed frame 13 such as a vending machine by a stud bolt 19 and a nut 20, and the second engaging member 8 is fastened and fixed to a door 14 by a stud bolt 21 and a nut 22. .

The second engaging member 8 is divided into a main body portion 8a and a lock arm 7, and the split groove 27 is provided in the main body portion 8a.
a is provided at the center. The lock arm 7 is provided with a shaft 6 inserted in a receiving hole 23 arranged in parallel with the shaft hole 4.
Thus, it is rotatably attached to the second engaging member 8. The lock arm 7 penetrates into the side recess 33 in the middle part of the first engagement member 2.

The push pin 11 is fitted into the shaft hole 4 of the first engaging member 2 so as to be vertically movable, and the second engaging member 2 is provided with a pin 35 for preventing the push pin 11 from coming off. A claw 9 is inserted in a guide hole 17 orthogonal to the shaft hole 4 of the first engagement member 2 so as to be horizontally movable in the left and right directions. In a state where the shackle 3 is restrained at the pushed-in position, the tip of the claw 9 is engaged with the annular receiving groove 25 on the peripheral surface of the lower end of the shackle 3.

At the tip of the claw 9, an inclined cam surface 28 which is pressed against the lower end of the shackle 3 is provided. The fixing body of the lock unit 1 includes a fixing pin 3 driven from the side.
4, it is fixed to the first engaging member 2 so as not to be able to be removed. The drive protrusion 30 of the eccentric cam joint 10 is engaged with the passive groove 29 at the base end portion of the claw 9. Rotor 1
When the rotor 15 is rotated in a predetermined direction by inserting a key into the key hole 16 of the fifth key 5, the driving projection 30 presses the groove wall surface of the passive groove 29, and the claw 9 retreats to the unlocking position along the guide hole 17. It is slid.

Guard rib 3 on the front wall of first engaging member 2
6 is a continuous wall shape surrounding the flange portion 7c.
Has been established. Spring 2 for biasing first push pin 11
4. The urging plate 18 of the claw 9 and the urging spring 26 of the stopper pin 12 are all constituted by compression coil springs.

[0021]

According to the auxiliary lock device of the present invention configured as described above, since the shackle 3 is not detached from the first engagement member 2, accidents such as loss or distortion of the shackle 3 are accurately prevented. In addition, since the guard rib 36 is provided close to the front wall portion of the first engaging member 2 so as to surround the outer peripheral portion of the lock arm 7 and protrudes in a continuous wall shape, the entire first engaging member 2 As the strength increases, the lock arm 7 can be properly protected against digging or violent destruction by a bar or the like, and the antitheft property is further improved.

In particular, in the present invention, the peripheral portion of the lock arm 7
Conceal the border between the lock arm 7 and the split groove 27
Flange 7a, first engagement member 2, and second engagement member
A flange portion 7b for concealing a boundary portion of
Flange for concealing a boundary between the system 7 and the second engaging member 8
Since 7bc provided so as overhangs, bars, etc.
It becomes difficult to insert the breaking tool into the boundary
ing.

[Brief description of the drawings]

FIG. 1 is a front view of an auxiliary lock device according to an embodiment of the present invention, showing a closed state.

FIG. 2 is a partially cutaway plan view showing an attached state of the auxiliary lock device.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a sectional view taken along line CC of FIG. 1;

FIG. 6 is a sectional view taken along line DD of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 lock unit 2 first engaging member 3 shackle 4 shaft hole of first engaging member 5 locking hole of second engaging member 6 shaft of second engaging member 7 lock arm of second engaging member 8 second Engaging member 9 Claw 10 Eccentric cam joint 11 Push pin 12 Stopper pin 27 Split groove portion of second engaging member 31 Sleeve portion of second engaging member 32 Sleeve portion of second engaging member 33 Side surface of first engaging member Recess 36 Guard rib

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 65/02 G07F 9/10

Claims (1)

(57) [Claims] 1. A shaft hole 4 into which a shackle 3 is inserted is provided in a first engagement member 2 attached to one of a fixed frame 13 and a door 14 of a vending machine or the like, and the other of the fixed frame 13 and the door 14 is provided. A lock arm 7 is pivotally attached to a second engagement member 8 attached to the lock arm 7 by a shaft 6, and a lock hole 5 for engaging and disengaging the shackle 3 is provided in the lock arm 7, and is locked to a front wall portion of the first engagement member 2. A guard rib 36 protrudes in a continuous wall shape so as to surround the outer periphery of the arm 7. When the shackle 3 is pushed into the first engagement member 2, the claw 9 that engages with the receiving groove 25 of the shackle 3 is moved by the spring 18. When the claw 9 is disengaged from the receiving groove 25 by operating the lock unit 1 provided on the first engagement member 2 by moving and biasing the shackle 3 from the shaft hole 4 Push pin 1 to push out
1 is fitted into the shaft hole 4 of the first engagement member 2, and the push pin 11 is pressed and urged by the spring 24, and when the shackle 3 escapes from the lock hole 5 of the lock arm 7, it is moved by the spring 26. and a stopper pin 12 that is energized is engaged with the receiving groove 25, protrusion of the shackle 3 is restrained, the locking arm 7 is rotated in the retraction direction about the shaft 6 together
On the periphery of the lock arm 7, the lock arm 7
A flange portion 7a for concealing a boundary portion of the split groove portion 27;
F that conceals the boundary between one engagement member 2 and second engagement member 8
The boundary between the flange portion 7b, the lock arm 7 and the second engagement member 8
The flange part 7bc that covers the boundary part is
Auxiliary lock device, such as a vending machine that has been kicked.