JP2003286784A - Door lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door lock which cannot be easily cut off by a shears- shaped cutting tool and in which a lock body can be retracted to a place where it does become an obstacle even when a door is in an opened state. <P>SOLUTION: The locking body 5 connected in a non-separable manner to a U-shaped connecting device 4 as a fixing base portion 3 with either one of a box body 1 or the door 2 of an opening formed to the box body 1 being connected to a lock device 6 fixed to the other, and an opening operation to the door 2 is prohibited in the connected state for this door; and the locking body 5 is connected to one leg portion 4a of the connecting device 4 in a freely rotatable manner and goes along with one side of the leg portions 4a of the connecting device 4 at the fixed base portion 3 over the full height, thereby a block body 7 for preventing pinching only the leg portion 4a is fixed. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock.

[0002]

2. Description of the Related Art Generally, a door lock for locking an opening / closing door of a vending machine or the like has one end fixed to a side wall of a vending machine casing and the other end of the chain fixed to the opening / closing door side. A structure described in Japanese Patent No. 2598378 is known as a structure for connecting the lock device to the lock device so that the chain can be locked.

In this conventional example, a chain stopper fixed to a housing has a U-shaped chain connecting hook metal fitting and a main body metal fitting covering both sides of both leg portions of the chain connecting hook metal fitting.

A groove is formed in the main body metal fitting in a direction orthogonal to the chain connecting hook metal fitting, and the chain serving as a locking body is locked to the top portion of the chain connecting hook metal fitting while being fitted in the groove. It With the chains connected,
Since both sides of the chain connecting hook metal fitting are covered with the main body metal fitting, cutting with a scissor-shaped cutting tool such as a bolt clipper is prevented.

[0005]

However, in the above-mentioned conventional example, since the chain is used as the locking body that connects the locking device and the fastener, even if the breaking of the fastener can be prevented, the chain itself Since the disconnection cannot be prevented, there is a problem that the anti-theft property is poor.

In order to solve this problem, it is possible to replace the chain with a locking body which has appropriate flexibility and which cannot be easily cut. In this case, however, the following problems occur. Occurs.

That is, in the above-mentioned conventional example, since the locking body is connected to the top of the hook member for chain connection and both sides are sandwiched by the body members,
Only rotation in a plane orthogonal to the mounting surface of the main body metal fitting, that is, in a plane orthogonal to the side wall of the vending machine housing is allowed, and rotation is performed in a plane parallel to the side wall of the vending machine housing. You cannot do it.

On the other hand, in order to open the open / close door and perform operations such as replenishment of goods into the opening, the lock on the lock body is once released by the locking device, and the lock body is opened. It is necessary to move it to a retracted position that does not hinder the operation. At this time, when a rod-shaped body with a predetermined strength is used as the locking body, the rigidity is also high and the deformability is generally inferior to that when using a chain, and the restraint at one end is released. In this state, since the tendency to return to the straight line becomes stronger, the locking body has a posture in which it projects toward the front side of the opening at the retracted position, which impairs the operability to the opening.

The present invention has been made in order to solve the above-mentioned drawbacks, and it is a place where it is not easily cut by a scissors-like cutting tool and the locking body does not interfere even when the opening / closing door is opened. The purpose is to provide a door lock that can be evacuated to.

Another object of the present invention is to provide a stopper for a locking body in a door lock suitable for this door lock.

[0011]

According to the present invention, the above object is to provide a U-shape in which one of the housing 1 and the opening / closing door 2 having an opening formed in the housing 1 is fixed as a fixed base 3. A door lock that lockably connects a locking body 5 that is non-detachably connected to a ring-shaped connecting tool 4 to a locking device 6 that is fixed to the other, and prohibits an opening operation to the open / close door 2 in the connected state. The locking body 5 is rotatably connected to one leg portion 4a of the connecting tool 4, and the locking base portion 5 is attached to the fixed base portion 3 on one side of both leg portions 4a of the connecting tool 4 over the entire height. This is achieved by providing a door lock to which the block body 7 that prevents pinching of only the legs 4a is fixed.

The door lock is a lock device 6 fixed to either the housing 1 or the opening / closing door 2 that closes the opening of the housing 1.
And a locking member 5 fixed to the other, and a locking body 5. One end of the locking body 5 is non-detachably connected to the stopper 8, and the other end is removably connected to the locking device 6, so that the opening / closing door 2 can be opened while being connected to the locking device 6. Can be regulated.

A fastener 8 for permanently connecting the locking body 5 has a U-shaped connector 4 and a block body 7,
The locking body 5 is connected to one of the leg portions 4 a of the connecting tool 4. By connecting the locking body 5 to the leg portion 4a of the connector 4, the locking body 5 can be rotated in a plane parallel to the fixed base 3 about the leg portion 4a as a rotation center. When separated, the retracted position can be set within the plane along the fixed base 3. As a result, the lock body 5
Is inferior in deformability, and the locking body 5 may project in the opening direction of the housing 1 when the opening / closing door 2 is opened regardless of whether the stopper 8 is arranged on the opening / closing door 2 or the housing 1. Therefore, the workability for the opening is improved.

Further, since the block body 7 is disposed at the side of the leg portion 4a of the connecting tool 4 over the entire height, the entire leg portion 4a is scissor-shaped cutting tool such as a bolt clipper from any direction. Since it cannot be sandwiched by, it is possible to reliably prevent damage by the blade.

Further, since a universal U-bolt can be used as the connector 4, the manufacturing cost can be reduced.

The block body 7 is connected to the leg portion 4a of the connecting tool 4 such that one of the scissor-shaped tools cannot insert a blade into the leg portion 4a.
It is sufficient that the leg portion 4a of the connector 4 is placed close to
A small gap to the extent that the coupled portion 5a of the locking body 5 is accommodated is allowed, but the accommodation slit 9 is formed in a partial area in the height direction of the block body 7 to be coupled. When the part 5a is configured to be accommodated, the block body 7 can be arranged closer to the leg 4a.

[0017]

1 and 2 show a door lock of a vending machine. The door lock includes a lock device 6 fixed to the opening / closing door 2 side of the vending machine, a stopper metal fitting 8 fixed to a side wall (fixed base portion 3) of the vending machine housing 1, and the lock device 6 and the metal stopper. And a lock body 5 for connecting 8 and 8.

The locking body 5 has a predetermined cutting strength so as not to be easily cut by a scissor-shaped or knife-shaped cutter, and is formed in a rod shape. In addition, in this embodiment in which the locking device 6 and the fastener 8 are fixed to the planes that are orthogonal to each other, the locking body 5 is provided with flexibility that can be bent at least at a right angle. A locked portion 5b is fixed to one end of the locking body 5, and a connected portion 5a having a connection hole 5c is fixed to the other end.

The lock device 6 accommodates a cylinder lock 6b in a lock case 6a and a lock rod 6d which advances and retreats into a lock body fitting groove 6c formed in the lock case 6a by operating the cylinder lock 6b. As shown in FIG. 1, the lock rod 6d is inserted into the lock hole 5d formed in the restrained portion 5b of the lock body 5 fitted in the lock body fitting groove 6c, so that the lock body 5 is opened. Can be restrained.

As shown in FIGS. 3 (a) and 4, the stopper 8 connects the upper ends of the two parallel legs 4a, 4a to each other to make a U-shape.
It has a connecting tool 4 in the shape of a letter and a block body 7. A screw rod 4b is formed at the lower end of each leg 4a of the connecting tool 4,
A stopper surface 4c is formed on the lower surface of the leg portion 4a so as to project slightly laterally from the outer circumference of the screw rod 4b.

In this embodiment, the coupling tool 4 is formed by screwing a stud bolt into the back surface of each leg 4a of the U-shaped body 4c made of stainless steel in consideration of corrosion resistance and the like. It is also possible to use a commercially available U-bolt in which the rod 4b is integrally formed with the leg portion 4a. In this case, a nut or the like is screwed into the male screw portion to stop the stopper surface 4c.
Is formed.

The block body 7 is integrally formed of a tough material such as hardened steel, and has a flat plate-shaped fixing surface portion 7a in which a part of a circle is cut out, and a cover portion 7b which bulges upward from the fixing surface portion 7a in a block shape. With. As shown in FIG. 3, the cover portion 7b has a height dimension substantially corresponding to the height dimension of the U-shaped main body portion 4c of the connecting tool 4, and the U-shaped main body of the connecting tool 4 in a plan view. The portion 4c is formed in the entire region except the fitting space 7c in which the portion 4c can be fitted.

The fitting space 7c is formed in a region facing the notch 7d formed in the fixed surface portion 7a with one side located near the center line of the circle, and the notch 7d facing the one side of the fitting space 7c. One side and the curved portion adjacent to this one side are opened to the outside to secure a rotation space for the locking body 5 described later. The bottom of the fitting space 7c (fixing surface 7
In a), a mounting hole 7e through which the screw rod 4b of the connecting tool 4 passes is opened. Further, the block body 7 is formed with a housing slit 9 extending inwardly of the block body 7 with the surface of the fixed surface portion 7a as a bottom wall. This accommodation slit 9 is
As shown in FIG. 5, the connected portion 5a of the locking body 5 is attached to the leg portion 4a.
An accommodation space for accommodating the tip fleshy part of the connected part 5a when the parts are connected is provided.

As shown in FIG. 4, the stopper 8 is inserted into the leg 4a through the connecting hole 5c of the locking body 5 while the block body 7 is held at an appropriate position on the side wall of the vending machine housing 1. The threaded rod 4b of the connecting tool 4 thus inserted is inserted into the mounting hole 7e of the block body 7, and the nut 10 is tightened from the rear surface of the housing 1 to be fixed to the housing 1. The connection of the connection tool 4 to the block body 7 is performed by the leg portion 4a on the side to be inserted into the connection hole 5c.
Is performed on the side of the notch 7d, and by tightening the nut 10, the stopper surface 4c of the connecting tool 4 presses the fixing surface portion 7a of the block body 7, and the block body 7 is tightened together. In the fixed state, the block body 7 is arranged on the leg portion 4a of the connector 4 in a state of leaning from one side, so that the leg portion 4a alone cannot be sandwiched by the scissors-like tool. The cutting operation to 4a cannot be performed.

Therefore, in this embodiment, FIG.
As shown in FIG. 5, when the locked portion 5b of the locked body 5 is locked in the locking device 6, the locked state of the locking device 6 is released, and then the locked portion 5b is released from the locking device 6. The locking body 5 bent at the peripheral portion of 2 returns to a straight rod shape.
After that, when the locking body 5 is rotated around the connecting hole 5c, the locking body 5 rotates along the side wall of the vending machine housing 1, and as shown in FIG. Move to. In the retracted posture, the lock body 5 is in a posture along the side wall of the housing 1 as shown in FIG. 2B, so that there is no hindrance in the operation of the opening of the vending machine.

In the above, the case where the stopper 8 is fixed to the side wall of the vending machine housing 1 has been described.
It is also possible to fix it to the front wall, in which case it is not necessary to give the locking body 5 flexibility. It is also possible to fix the fastener on the opening / closing door 2 side and the locking device 6 on the vending machine housing 1 side.

Further, in FIG. 5, the accommodation slit 9
Corresponds to the fact that the tip of the connected portion 5a of the locking body 5 is formed in a rod shape, and the connected portion 5a in the retracted position is
The depth dimension is formed to be large enough to accommodate the tip end of the housing slit 9. However, the depth dimension of the housing slit 9 can be reduced by making the tip shape of the connected portion 5a small in interference at the retracted position. it can.

[0028]

As is apparent from the above description, according to the present invention, the locking body is not easily cut by the scissors-like cutting tool, and the locking body is located at a place where it does not interfere even when the opening / closing door is opened. A door lock that can be retracted can be obtained.

[Brief description of drawings]

FIG. 1 is a view showing a main part of an automatic vending machine, in which (a) is a side view in a locked state and (b) is a front view.

FIG. 2 is a view showing a main part of the vending machine, (a) is a side view in an unlocked state, and (b) is a front view.

FIG. 3 is a view showing a fastener, (a) is a sectional view, (b)
Shows a block body only (c) 3B direction arrow view,
(C) is a 3C direction arrow view of (a) which shows only a block body.

FIG. 4 is a cross-sectional view showing a state in which a locking body is connected to a stopper.

FIG. 5 is a view showing a housing slit, (a) is a sectional view taken along line 5A-5A of FIG. 3 (b) when the locking body is at the retracted position,
(B) is 5A of FIG. 3 (b) when the locking body is in the locking position.
It is a 5A line sectional view.

[Explanation of symbols]

1 case 2 open / close door 3 fixed base 4 connector 4a legs 5 Locked body 6 lock device 8 stopper 9 accommodation slit

Claims (2)

[Claims] 1. A locking body that is non-detachably coupled to a U-shaped connector fixed by using one of a housing and an opening / closing door having an opening formed in the housing as a fixed base. A door lock that is lockably connected to a fixed lock device and prohibits opening operation to the open / close door in a connected state, wherein the lock body is rotatably connected to one leg of the connecting tool, and A door lock in which a block body is fixed to the fixed base portion along one side of both leg portions of the connecting tool so as to prevent pinching of only the leg portions. 2. A locking / unlocking of an opening / closing door, which is fixed to either a housing or an opening / closing door having an opening formed in the housing as a fixed base portion and is detachably connected to a locking device fixed to the other. A locking metal fitting for a locking body in a door lock that permanently connects the other end of the locking body for performing the above-mentioned operation, wherein the U-shaped coupling tool is fixed to the fixed base section, and is jointly fastened together with the connecting tool to the fixed base section. And a block body that is attached to one side of both legs of the coupling tool over the entire height to prevent pinching of only the leg portion, and the block body has one of the legs of the coupling tool. Locking body for a locking body in a door lock in which a storage slit for the locking body connected to the section is opened.