JP2004124625A - Locking device for crime prevention - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking device for crime prevention which uses a locking arm and enhances a security effect in an automatic vending machine etc. <P>SOLUTION: In this locking device, the locking arm 10 formed by being bent in an approximate U shape is arranged between the side surface 46 of a machine body A and the top surface 47 thereof in such a manner as to straddle an upper corner 45 which is provided on the hinge H side of an outside door B; and both ends 10a and 10b of the locking arm 10 are detachably held by first and second arm holders 11 and 12 which are fixed to the side surface 46 and the top surface 47 of the machine body A, respectively. The arm holder 11 is equipped with a lock means for performing locking/unlocking by operating a key 15, and a holding means for engageably/disengageably holding the locking arm 10 in interlock with locking/unlocking operations of the lock means. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for crime prevention in vending machines and the like, and uses a lock arm to lock the opening and closing of the door using a lock arm separately from the main locking device of the door. Equipment related.
[0002]
2. Description of the Related Art Conventionally, in a vending machine, for example, as shown in FIG. 11, a locking device 2 is incorporated in a front opening / closing door 1, but it is illegally unlocked using an appropriate tool such as a bar. The lock arm 3 bent in an L-shape is arranged along the side corners of the opening / closing door 1 and the vending machine main body 4 separately from the main locking device 2 because the lock arm 3 may be stolen due to being broken or broken. A security lock device 6 held by the security lock 5 and fixed to the vending machine main body 4 is provided, and the security lock device 6 and the locking device 2 are double-locked (for example, see Patent Document 1). .). Note that reference numeral 7 in the drawing denotes an opening / closing hinge of the opening / closing door 1.
[0003]
[Patent Document 1]
Registered Utility Model No. 30226297 (Page 2, FIG. 1)
[0004]
However, conventionally, in the vending machine and the like as described above, the hinge 7 is broken even if the security lock device 6 having the lock arm 3 is assembled into a double lock structure. For example, the opening and closing door 1 may be opened, and there is a problem that the theft cannot be sufficiently prevented.
[0005]
Therefore, an object of the present invention is to provide a security lock device that can further enhance the anti-theft effect in a vending machine or the like even if a method such as breaking a hinge is employed.
[0006]
Accordingly, in order to achieve the above object, the invention according to the first aspect of the present invention is to provide an opening / closing door such as an outer door B as shown in the embodiment shown below. In a security device R for locking the opening and closing of the door using a lock arm 10 separately from a main locking device C that can be opened and closed freely with respect to the lock arm 10, the lock arm 10 is bent and formed. 10 is disposed between the side surface 46 and the top surface 47 or the bottom surface of the machine main body A across a corner such as the upper corner 45 provided on the hinge H side of the door. Lock means 16 for detachably holding the arm holders 11 and 12 by operating a key 15 on the arm holders 11 and 12, and interlocking with the locking and unlocking operation of the lock means 16. Disengage lock arm 10 Characterized in that it comprises holding means 17 for holding the standing.
[0007]
According to a second aspect of the present invention, in the security lock device R according to the first aspect, for example, as shown in the following illustrated embodiment, the arm holders 11 and 12 are provided in a product storage section in the machine main body A. a is fixed to the exterior surface of the machine body A between the openable and closable inner door D that seals a and the openable and closable door.
[0008]
According to a third aspect of the present invention, in the security lock device R according to the first or second aspect, for example, as in the following embodiment, the holding means 17 is moved to the locked position by a spring biasing force at the time of locking. When the lock member 25 is locked to the lock arm 10, and when the lock is released, the lock member 25 is moved from the lock position to the unlock position in conjunction with the locking / unlocking operation of the lock means 16, and And a cam member 26 for releasing the lock.
[0009]
Embodiments of the present invention will be described below with reference to the drawings.
[0010]
FIG. 1 is a perspective view showing a state in which a security device according to the present invention is assembled to a vending machine as an example. In the figure, reference numeral A denotes a machine main body of a vending machine, B denotes an outer door (opening / closing door) which is attached to the machine main body A via a hinge H so as to be openable and closable, and C denotes a main lock similar to the conventional one incorporated in the outer door B. Device. Reference symbol R denotes a security lock device according to the present invention, which has a structure that double locks the outer door B as shown below in conjunction with the locking device C. In addition, the vending machine of the illustrated example is provided with a product storage section a having a cooling function at a step behind the outer door B as schematically shown by a dotted line in FIG. 2, and opens and closes the product storage section a. It is structured to be sealed with a free inner door D.
[0011]
The security lock device R includes a lock arm 10, a first arm holder 11 for holding one end 10a of the lock arm 10, and a second arm holder for holding the other end 10b, both of which are made of steel members. 12 are provided.
[0012]
As shown in FIG. 3, the lock arm 10 is formed by bending a round bar into a substantially U-shape, forming a taper at the tip end of the one end portion 10a, and forming a tapered shape. The locking grooves 10c and 10d are provided. The other end 10b is provided with a screw hole 10e in the radial direction near the tip thereof for screwing the detent bolt 13. In the drawing, reference numeral 14 denotes a protective cap that covers the rotation preventing bolt 13.
[0013]
As shown in FIG. 4, the first arm holder 11 includes a lock means 16 for operating and unlocking the key 15 and a holding means 17 for the lock arm 10. The lock means 16 includes a lock body case 18, a cylinder lock 19, a cylinder base 20, and a cylinder stopper 21. The lock body case 18 has a substantially rectangular parallelepiped box shape having a mounting opening 18a on the bottom surface, and has a lock mounting port 18b and an arm insertion port 18c formed on one side surface. An insertion guide groove 20a is formed in the cylinder base 20 in accordance with the thickness of a lock member 25 described later. Then, a cylinder base 20 is provided inside the one side space of the lock main body case 18 through the cylinder opening 21 through the mounting opening 18a, and the cylinder lock 19 is inserted through the lock mounting opening 18a through the spring 22. And is fitted to the cylinder base 20.
[0014]
The holding means 17 includes a lock member 25, a cam member 26, and a biasing spring 27. The lock member 25 is a metal plate having a circular arm fitting hole 25a. A notch 25b for locking a spring is provided on one side of the arm fitting hole 25a, and a cam member 26 is formed on the other side. It is provided with a cam engaging recess 25c that is curved in accordance with the outer shape. On the other hand, the cam member 26 is a substantially elliptical plate cam, and is provided with an engagement hole 26a at an eccentric position in accordance with the outer shape of the operation projection 19a provided at the tip of the cylinder lock 19. The biasing spring 27 in the illustrated example is a torsion coil spring.
[0015]
In the holding means 17, the cam member 26 is rotatably erected in the lock body case 18 by engaging the operation projection 19a of the cylinder lock 19 with the engagement hole 26a as shown in FIGS. I do. The lock member 25 is inserted into the insertion guide groove 20a of the cylinder base 20 on the cam member 26, and stands upright in the lock body case 18 so as to be movable in the vertical direction in the drawing. It is engaged with the cam member 26 and assembled. The biasing spring 27 is provided through a spring guide shaft 28 in a spring accommodating portion 18d in the lock body case 18, locks one end of the spring in a notch 25b of the lock member 25, and fixes the lock member 25 to the cam member 26 side. , So that it is locked with the cam member.
[0016]
Further, as shown in FIG. 4, the first arm holder 11 has a back cover 30 for closing the mounting opening 18a of the lock body case 18, as well as a set screw 31 of the back cover, a resin plate 32, and a fixing member. A bolt 33, a nut 34, and a spring washer 35 are provided. Reference numeral 36 in the drawing denotes an attachment ring of the lock arm 10 attached to the arm insertion opening 18c of the lock body case 18.
[0017]
As shown in FIG. 3, the second arm holder 12 has a substantially triangular block shape in vertical section, has an arm insertion hole 40 penetrating between both end surfaces, and has a pair of parallel screw holes ( (Omitted). Reference numeral 41 is a fixing bolt screwed into the screw hole, 42 is a spring washer, and 43 is a nut.
[0018]
As shown in FIG. 2, the security lock device R having the components as described above is assembled to the machine body A so that the lock arm 10 straddles the upper corner 45 of the outer door B on the hinge H side. . At the time of this assembling, the first arm holder 11 arranges the lock attachment port 18b and the arm insertion port 18c toward the front of the machine body A, and a predetermined attachment between the outer door B and the inner door D on the side surface 46 thereof. At the height position, as shown in FIG. 7, it is fixed from the inside through a spring washer 35 using a fixing bolt 33 and a nut 34. As shown in FIG. 2, the second arm holder 12 has the arm insertion hole 40 arranged in the front direction of the machine body A, and a predetermined mounting between the outer door B and the inner door D on the top surface 47. It is fixed to the width position from the inside through the spring washer 42 using the fixing bolt 41 and the nut 43.
[0019]
Further, the key 15 is inserted into the keyhole of the cylinder lock 19 in the first arm holder 11 and turned to the unlocking angle position as shown in FIGS. 5 and 6, and in conjunction with this, the cam member 26 is unlocked. The lock member 25 is rotated to the angular position against the urging spring 27, and the lock member 25 is kept in an unlocked state in which the lock arm 10 is loosely fitted in the arm fitting hole 25a. On the other hand, at the time of this assembling, the lock arm 10 inserts the other end 10b into the arm insertion hole 40 of the second arm holder 12 as shown by the solid line in FIG. Assemble and set in the posture.
[0020]
Therefore, when locking the outer door B in the illustrated vending machine, the outer door B is closed with respect to the machine main body A, and then the locking device C and the security lock device R are respectively connected using the common key 15. Lock operation to lock double. In particular, in the security lock device R, after the lock arm 10 is rotated in the direction indicated by the solid line in FIG. 8 one by one, the one end 10a is inserted from the arm insertion opening 18c of the first arm holder 11, It is disposed so as to straddle the upper corner 45 of the outer door B. Then, the one end 10a of the lock arm 10 is loosely fitted into the arm fitting hole 25a of the lock member 25 at the lock release position, as shown in FIGS.
[0021]
Thereafter, the key 15 is turned to the locking angle position to rotate the action projection 19a of the cylinder lock 19. Then, the holding means 17 interlocks with the locking operation of the lock means 16, and as shown in FIGS. 9 and 10, the cam member 25 rotates from the unlock angle position to the lock angle position. Then, the lock member 26 is further pushed down from the unlocked height position to the lock height position by the urging spring 27, and the edge of the arm fitting hole 25a is locked in the locking groove 10c of the lock arm 10. Thereby, the lock arm 10 is restricted from being pulled out, and the lock arm 10 straddling the upper corner 45 of the outer door B is brought into a locked state in which the opening and closing of the outer door B is restricted. Therefore, in the illustrated vending machine, even if the hinge H is broken to open the outer door B, the outer door B can be locked by the lock arm 10 and prevented from being opened.
[0022]
On the other hand, when unlocking the outer door B as necessary, the locking device C is unlocked using the key 15 and the security lock device R is unlocked. In particular, when unlocking the security lock device R, the key 15 is turned to the opposite unlocking angle position to rotate the operating projection 19a of the cylinder lock 19. Then, the holding means 17 is interlocked with the unlocking operation of the lock means 16, and the cam member 25 is again moved from the lock angle position to the lock release angle position against the urging spring 27 as shown in FIGS. Then, the lock member 26 is pushed up from the lock height position to the lock release height position against the urging spring 27 to release the lock arm 10 from the lock groove 10c. Then, the lock arm 10 is pulled out of its one end portion 10a from the arm fitting hole 25a, and further pulled out from the arm insertion opening 18c as shown by the dashed line in FIG. 8, and then rotated in the direction shown by the dotted line in FIG. To return to the original evacuation position. Thus, the locked state of the outer door B by the lock arm 10 is released.
[0023]
By the way, in the illustrated embodiment described above, the lock arm 10 is detachable with the first arm holder 11 and the second arm holder 12 whose both ends are fixed to the side surface 46 and the top surface 47 of the machine body A, respectively. The example shown in FIG. However, in the present invention, although not shown, for example, one arm holder having the lock means 16 and the holding means 17 is provided, which is fixed to the side surface 46 or the top surface 47 of the machine body A, and The lock arm 10 straddling the corner portion 45 can be similarly detachably held.
[0024]
Further, in the illustrated embodiment described above, an example is shown in which the lock arm 10 is disposed between the side surface 46 and the top surface 47 of the machine main body over the upper corner 45 provided on the hinge side of the outer door B. However, in the present invention, although not shown, the lock arm is similarly disposed between the side and bottom surfaces of the machine main body across the lower corner provided on the hinge side of the door and fixed to the machine main body. A configuration may be adopted in which the opening and closing door is detachably held by a holder, and thereby the opening and closing door is locked so as to be unlockable.
[0025]
Furthermore, in the security device R for security in the illustrated embodiment described above, the lock arm 10 is formed using a steel round bar. However, the present invention is not limited to this. For example, a steel wire rope or the like is used. A lock arm can also be formed.
[0026]
Lastly, in the illustrated embodiment described above, an example is shown in which the security lock device R is applied to a vending machine. However, the present invention is not limited to a vending machine, and a main locking device is used to prevent theft. If it is necessary to lock the opening / closing door twice, it can be widely applied to important equipment with the opening / closing door.
[0027]
According to the present invention configured as described above, the following effects can be obtained.
[0028]
According to the first aspect of the present invention, the lock arm is bent and formed, and the lock arm is disposed between the side surface and the top surface or the bottom surface of the machine main body across the corner having the hinge side of the door. However, since it is configured to be detachably held by an arm holder fixed to the machine body, it is possible to prevent a problem that the hinge is broken and the opening and closing door is easily opened as in the related art. As a result, the anti-theft effect in a vending machine or the like can be further enhanced.
[0029]
According to the second aspect of the present invention, in addition, the arm holder is fixed to the exterior surface of the machine body between the openable and closable inner door that seals the product storage portion in the machine body and the openable and closable door. Therefore, when the arm holder is fixed to the machine main body, the security lock device is assembled to the vending machine or the like without causing any adverse effect such as impairing the heat retaining performance in the product storage section due to the mounting structure. be able to.
[0030]
According to the third aspect of the present invention, the holding means for detachably holding the lock arm is configured such that the cam mechanism is linked to the locking / unlocking operation of the lock means, thereby simplifying the structure of the holding means. In addition, the lock arm can be detachably held appropriately in accordance with the locking / unlocking operation of the security lock device.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a vending machine to which a security lock device according to the present invention is assembled.
FIG. 2 is a partially enlarged perspective view of the vending machine showing a state where the outer door is locked by assembling the security lock device.
FIG. 3 is an exploded perspective view of a lock arm and a second arm holder.
FIG. 4 is an exploded perspective view of a first arm holder.
FIG. 5 is a longitudinal sectional view showing the first arm holder in an unlocked state as viewed from the front.
FIG. 6 is a longitudinal sectional view showing the first arm holder in an unlocked state as viewed from a side.
FIG. 7 is a front view showing an attached state of a first arm holder.
FIG. 8 is a partially enlarged perspective view for explaining the movement of the lock arm when the lock arm is set, locked, and unlocked.
FIG. 9 is a vertical sectional view showing the first arm holder in a locked state as viewed from the front.
FIG. 10 is a longitudinal sectional view showing the first arm holder in a locked state as viewed from a side.
FIG. 11 is a perspective view showing a vending machine to which a conventional security lock device is assembled.
[Explanation of symbols]
A Machine body a Product storage section B Outer door (opening / closing door)
C Main locking device D Inner door H Hinge R Security lock device 10 Lock arm 11 First arm holder 12 Second arm holder 15 Key 16 Locking means 17 Holding means 25 Lock member 26 Cam member 27 Bias spring 45 Outer door Upper corner 46 Side of machine body 47 Top surface of machine body

Claims (3)

Separately from a main locking device that opens and closes the opening and closing door with respect to the machine body, in a security lock device that locks the opening and closing of the opening and closing door using a lock arm,
The lock arm is bent and formed, and the lock arm is disposed between a side surface and a top surface or a bottom surface of the machine main body across a corner portion provided on the hinge side of the door, and is fixed to the machine main body. Removably held by arm holder,
The arm holder is provided with lock means for operating and unlocking the key by operating a key, and holding means for holding the lock arm in a detachable manner in conjunction with the locking and unlocking operation of the lock means. Locking device. The said arm holder is fixed to the exterior surface of the said machine main body between the openable and closable inner door which closes the goods storage part in the said machine main body, and the said open / close door, The said body is characterized by the above-mentioned. A security lock device according to item 1. The holding means locks the lock arm at the lock position by a spring biasing force at the time of locking, and unlocks the lock member from the lock position in conjunction with the unlocking operation of the lock means at the time of unlocking. The security lock device according to claim 1, further comprising a cam member that moves to a position to release the engagement with the lock arm.

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