JPH08322663A - Auto-lock device for housing box having wing - Google Patents

Abstract

PURPOSE: To prevent rushing of housed things at the time of an earthquake without damaging appearance by holding a dead bolt in a casing by a holding member, and releasing the holding member by inertial force in accordance with oscillation to engage the dead bolt with a bracket in a wing for locking. CONSTITUTION: A dead bolt 16 is arranged in a casing 15 formed at a front edge part lower surface 8A of a top plate 8, it is constantly energized upward by a first coil spring 17, it is preliminarity held in the casing 15 by a holding member 8, and the holding member 18 is released from the dead bolt 16 by detection of excessive oscillation. An auto-lock means 19 is thus composed of these. A bracket 40 is attached on an inner surface 5A of a door 5, and when the dead bolt 16 is stored in a guide cylinder part 21, it is released from the bracket 40 to reach an unlock position A. As a weight member 52 of the auto-lock means 19 collides with a release member 51 of the holding member 18, holding by a lock member 48 is released by impact force of it, and the dead bolt 16 automatically reaches a lock position B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic lock device for a storage box with wings.

[0002]

2. Description of the Related Art In a storage box with a wing represented by furniture such as a cupboard, a bookshelf, a closet, and a makeup case, for example, a door (wing) is pivoted in a double door shape at an opening of a box body whose front is open. It is worn. On the inner surface of the edge of the door, an iron plate piece corresponding to the magnet provided on the top plate of the box body is attached, and when the door is closed toward the box body, the magnet on the body side is The plate pieces are attracted to hold the door in the closed position.

[0003]

In the storage box with wings represented by the above-mentioned furniture, since articles to be stored are frequently taken in and out, generally, a locking device is rarely provided, and even if a locking device is provided. Users often don't use it. For this reason, as can be seen from the experience of the Great Hanshin Earthquake, when the storage box is shaken greatly due to an earthquake with a large seismic intensity, etc., the shaking causes the door that is closed only by the attractive force of the magnet to open. The stored items may pop out, which may damage the stored items or hit the occupants, resulting in injury.

Therefore, the inventor of the present application has proposed an automatic lock device for a storage box with a wing, which can prevent stored articles from jumping out by automatically locking the wings by detecting a large swing generated in the box body. A patent application has already been filed (see Japanese Patent Application No. 7-49985). However, in the above auto-lock device, the casing that houses the dead bolt that automatically projects when an earthquake occurs is fixed to the top surface of the top plate of the box body, and the dead bolt is projected to the outer surface of the wing to prevent the wing from moving. Since it is locked, the guide portion of the casing that guides the deadbolt projects to the front of the storage box for furniture or the like, which causes a problem that the storage box becomes unattractive.

That is, the means for fixing the casing to the top surface of the top of the box body is suitable for retrofitting the auto-lock device to furniture or the like, but the casing is fixed to the top surface of the furniture or the like from the beginning. In that case, it feels like foreign matter is fixed to the top plate and it looks bad, so there was a strong demand for an auto-lock device to be built into the box body.

On the other hand, even if the auto lock device is incorporated in the box body, if the casing itself of the device is too large, it will impair the storage space of the box body. It should be as compact as possible. Further, when the auto-lock device is housed in the box body, there is a problem that the dead bolt can no longer be released when the dead bolt is inadvertently projected due to vibration that is not so large.

In view of the above situation, the present invention allows an automatic lock device for detecting a large swing generated in the box body to automatically lock the wings to be incorporated into the box body so that furniture and the like will look good. The first object is to prevent the stored articles from jumping out in the event of an earthquake without hindering Further, the present invention is to make the casing of the auto-lock device incorporated in the box body as compact as possible so that the storage space in the box body is not obstructed, and to keep the material cost low. It has a secondary purpose.

A third object of the present invention is to make it possible to easily release the dead bolt of the auto lock device provided in the box body.

[0009]

In order to achieve the above object, the present invention takes the following technical means. That is, an automatic lock device for a storage box with wings according to the present invention includes a casing attached to an inner surface of an opening edge portion of a box body in which a wing is pivotally attached to an opening portion that opens forward, and a casing that can freely move in and out of the casing. And a dead bolt that is inserted into the wing and is urged to a lock position that engages with a bracket fixed to the inner surface of the wing to prevent the wing from opening, and an unlock for releasing the dead bolt from the bracket. A holding member that holds the deadbolt inside the casing so that it is in the position, and an inertial force caused by excessive shaking generated in the box main body acts on the holding member to release the holding member from the deadbolt. And an auto-locking means for controlling the operation (claim 1).

More specifically, the casing is formed with an accommodating portion that extends in the front-rear direction so as to intersect with the direction in which the dead bolts are extended and retracted, and the holding member is urged toward the dead bolt so that the inside of the accommodating portion is retained. At a front end of the plate member having a dead bolt hooking portion, and the auto-locking means is mounted in the storage portion so as to be movable in the front-rear direction and moved rearward. In addition, it is possible to employ a weight member that collides with the holding member and releases the hook portion from the dead bolt. In this case, it is preferable that the weight member is formed of a metal body having a U-shaped cross section surrounding the holding member guided in the storage portion (claim 2).

Further, in order to enable the dead bolts that are inadvertently locked to be unlocked from the outside of the box body, the dead bolts are retracted toward the inner surface of the opening edge of the box body, and the casing is formed on the inner surface. Fixed to
A release hole that communicates with the inside and outside of the box body may be provided at a position corresponding to the protruding end of the dead bolt in the opening edge portion of the box body (claim 3).

Further, on the inner surface of the opening edge of the box body,
When the present invention is applied to a storage box in which a contact member having a magnet attracting surface is provided on the front side and a plate piece attracted to the magnet is fixed to the inner surface of the wing, when the present invention is adopted, It is preferable that the casing is integrally formed (Claim 4) and the bracket is integrally formed with the plate piece (Claim 5).

[0013]

In the normal case where the box body is not largely shaken, the dead bolt is held in the unlocked position by the holding member in advance, so that the wings can be freely opened and closed. On the other hand, when the box body shakes excessively due to an earthquake or the like, the auto-lock means releases the holding member from the dead bolt by its inertial force, so the dead bolt pops out of the casing and becomes the locked position, automatically opening the wing. Block.

In this case, according to the present invention, the casing is attached to the inner surface of the opening edge portion, and the bracket, which engages with the dead bolt inserted into the casing so as to be retractable and prevents the opening of the wing, is provided on the inner surface of the wing. Since it is fixed, it becomes possible to incorporate the auto-lock device that performs the above-mentioned action into the box body (claim 1).

Further, according to the present invention, since the weight member for releasing the holding member from the dead bolt due to the large swing is formed in a U-shaped cross section surrounding the holding member guided in the housing portion of the casing, the holding member is formed. Can be incorporated in the cross section of the weight member, and the width dimension of the casing can be made as compact as possible (claim 2). On the other hand, if the dead bolt is protruding due to not so large vibration, push the protruding end of the dead bolt downward with the rod-shaped material inserted into the release hole from above the top plate to return the dead bolt to the unlocked position. (Claim 3).

Further, if the casing is formed integrally with the abutment member having the magnet, it is possible to save the labor of attaching the casing separately from the abutment member (Claim 4), and the bracket is attached to the plate piece for adsorbing the magnet. If they are formed integrally, the number of parts can be reduced (claim 5).

[0017]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention.
FIG. 3 shows a cupboard (storage box) 2 that employs the auto-lock device 1 of this embodiment.
A box main body 3 having an open front surface in which tableware is stored is provided inside, and a pair of left and right doors (wings) 5 are pivotally attached to the upper opening 4 of the box main body 3 in a double door shape.

A pair of left and right drawers 6 are provided at the center of the box body 3, and a sliding door 7 is provided at the bottom. A steel plate piece (not shown in FIG. 3) corresponding to the magnet 11 of the contact member 10 provided on the top plate 8 and the bottom plate 9 of the box body 3 is attached to the inner surface 5A of the edge of the door 5. , The plate piece of the door 5 swung toward the box body 3 is attracted by the magnet 11 on the body 3 side,
Can be held in the closed position.

The top plate 8 of the box body 3 is fixed with a fixing member 13 of a wire 12 for preventing the cupboard 2 from falling due to shaking such as an earthquake. The tip of the wire 12 is provided at the upper corner of the room. It is hooked on the hook metal fitting 14. Similarly, the top plate 8 of the box body 3 is provided with the auto-lock device 1 that automatically prevents the door 5 from opening due to shaking such as an earthquake.

As shown in FIGS. 1 and 2, the auto-lock device 1 includes a casing 15 made of synthetic resin, which is attached to the lower surface of the front edge of the top plate 8 (inner surface of the opening edge of the box body 3) 8A. , The dead bolt 16 inserted into the casing 15 so as to be able to move up and down, and the dead bolt 1
6, a first coil spring 17 for constantly urging the dead bolt 16 upward, a holding member 18 for holding the dead bolt 16 in the casing 15 in advance, and an excessive shaking caused by an earthquake or the like to detect the holding member 18 so that the dead bolt 16 is removed. Auto-locking means 19 for releasing from.

The casing 15 has a fixed portion 20 which is screwed to the lower surface 8A of the top plate 8 and whose upper surface side is open. The fixed portion 20 is integrally fixed to the front end portion of the fixed portion 20 at right angles to the fixed portion 20. A bottom tubular guide tubular portion 21 and a lid member 22 that closes the upper opening of the fixed portion 20 are provided. As shown in FIG. 1, the casing 15 has a top plate 8 via a spacer 23 laminated on the lid member 22 so that the upper end opening 21A of the guide tube portion 21 is separated from the lower face 8A of the top plate 8 with an appropriate gap. Is screwed to the lower surface 8A of the.

That is, the upper end opening of the guide tube portion 21 is 2
1A is separated from the lower surface 8A of the top plate 8 in the mounted state shown in FIG.
The insertion space 24 is formed. The dead bolt 16 is vertically movably inserted through an upper end opening 21A of the guide cylinder portion 21. When the distance E between the top plate 8 and the door 5 changes depending on the type of the cupboard 2, a spacer 23 having a different thickness is used to change the mounting height of the casing 15 so that an appropriate insertion space 24 is obtained. Can be secured.

As shown in FIG. 2, the lid member 22 is a rectangular plate-shaped lid body 25 that closes the upper opening of the fixed portion 17,
A guide lid 26 is fixed to the front end of the lid body 25, and is fixed to the casing 15 by mounting screws (not shown) inserted through the first screw holes 27 provided on both left and right sides of the lid body 25. At the left and right sides of the lower surface of the lid body 25, the fixing portions 2
A positioning pin 29 that fits into the positioning hole 28 provided at 0 and positions the casing 15 is projected.

The guide lid 26 is formed in a substantially T shape in plan view, and the step portion 3 formed in the front portion of the fixed portion 20.
0, and at this time, the front portion of the holding member 18 is guided in the front-rear direction (left-right direction in FIG. 1). That is, a guide groove 31 that opens downward and extends in the front-rear direction is formed in the central portion of the guide lid 26, and by inserting the front portion of the plate-shaped holding member 18 into this guide groove 31, the same holding member is formed. 18 is guided in the front-back direction.

Further, the lid main body 25 and the fixing portion 20 of the casing 15 are formed with second screw holes 32 at the same positions of the four corners, and the mounting screws 33 inserted upward in the second screw holes 32 are attached thereto. By screwing the casing 15 toward the lower surface 8A, the casing 15 is fixed to the casing 8 via a lid member that closes the casing 15 and a spacer 23 that is laminated thereon.

As shown in FIGS. 1 and 2, the dead bolt 16 has a length substantially equal to the inner air length of the guide cylinder portion 21,
With a bottomed spring storage hole 34 extending from the lower end to the central portion,
The guide coil 21 is inserted together with the first coil spring 17 housed in the spring housing hole 34. At this time, the lower end portion of the first coil spring 17 is fitted onto the connecting pin 36 provided upright on the bottom wall 35 of the guide tubular portion 21, and the spring accommodating hole 3
4 is stored in a compressed state. Therefore, the dead bolt 16 is constantly urged upward by the first coil spring 17.

A pair of left and right stoppers 37 are provided on the lower portion of the side surface of the dead bolt 16, and a vertical guide groove 38 is formed between the stoppers 37. This guide groove 3
The dead bolt 16 is inserted into the guide tube portion 21 so that the guide rail 39 extending vertically is fitted to the inner surface of the guide tube portion 21. Also,
The stopper 37 contacts the front end portion 26A of the guide lid 26 to restrict the dead bolt 16 from coming out upward.

On the other hand, on the inner surface 5A of the door 5, a bracket 40 that is locked by the dead bolt 16 and restricts the opening of the door 5 is provided.
Are fixed by mounting screws 41. The bracket 40 is bent and formed in an L shape in a side view from a mounting plate 42 and a rectangular ring-shaped locking plate 43 orthogonal to the mounting plate 42, and the locking plate 43 has a larger cross section than that of the dead bolt 16. A joint hole 44 is formed.

The bracket 40 is mounted so that the locking plate 43 projects rearward from the inner surface 5A by screwing the mounting plate 42 to the inner surface 5A of the door 5 with the mounting screw 41. The mounting position is
In the closed state of the door 5, the locking plate 41 is at the same plane position as the position where the dead bolt 16 is retracted and retracted, and is at the height position where it enters the insertion space 24.

Therefore, when the dead bolt 16 is entirely housed in the guide cylinder portion 21 (solid line in FIG. 1B), the dead bolt 16 is released from the bracket 40, and the door 5 is opened. The allowable unlock position A is reached, but on the other hand, the stopper 37 causes the front end 2 of the guide lid 26 to move.
When it protrudes until it abuts against 6A (phantom line in FIG. 1B), the upper part of the dead bolt 16 enters into the engagement hole 44 of the bracket 40 fixed to the door 5 and prevents the door 5 from opening. The locked position B is reached.

The fixed portion 20 of the casing 15 is formed with an accommodating portion 45 extending in the front-rear direction (horizontal direction in FIG. 1) so as to intersect with the protruding / retracting direction of the dead bolt 16. The holding member 18 is inserted in the central portion in the direction while being guided so as to be movable in the front-rear direction. That is, the holding member 18 of the present embodiment is made of a metal slide plate formed in a substantially rectangular plate shape, and includes a pair of left and right guide plates 46 standing upright in the center of the bottom surface of the storage section 45. By being fitted vertically between them, they are guided in the storage portion 45 so as to be movable in the front-rear direction.

The plate-shaped holding member 18 is provided with a hooking piece (hooking portion) 48 which fits into a hooking recess 47 formed on the side surface of the dead bolt 16 at the front end thereof, and the holding member 18 is dead bolted. A connecting piece 50 for connecting the second coil spring 49 biasing to the 16 side is provided at the rear end portion. Further, a release piece 51 for sliding the holding member 18 rearward against the second coil spring 49 is formed at the upper rear edge of the holding member 18.

The upper edge of the hooking piece 48 of the holding member 18 is formed with a taper portion 48A having a front downward slope so as to push the holding member 18 backward with the downward movement of the dead bolt 16. . On the other hand, as shown in FIG. 1B, the second coil spring 49, which is attached by externally fitting the connecting piece 50 of the holding member 18, abuts on the rear end wall portion of the storage portion 45 and always moves the holding member 18 forward. Urged to. The biasing force of the coil spring 49 causes the locking piece 48 of the holding member 18 to be forcibly fitted into the locking recess 47 of the dead bolt 16, whereby the dead bolt 16 can be held in the unlocked position A in advance. it can.

The auto-locking means 16 of the present embodiment is loaded together with the plate-like holding member 18 in the storage portion 45 so as to be slidable in the front-rear direction, and collides with the holding member 18 when it moves rearward. Hold the holding member 18 to the dead bolt 1
6 is a weight member 52 to be released. The weight member 52 is made of a metal body having a length in the front-rear direction shorter than that of the storage portion 45, and is formed in a U-shaped cross section that can surround the holding member 18 guided in the storage portion 45.

That is, as shown in FIG. 2, the weight member 5
On the lower surface side of the central portion of 2, a relief recess 53 having a cross section capable of accommodating the pair of left and right guide plates 46 standing in the accommodation portion 45 is extended in the front-rear direction. The weight member 52 is accommodated in the accommodating portion 45 of the casing 15 so as to be slidable back and forth with the guide plate 46 fitted to the.

On the upper surface side of the central portion of the weight member 52,
A slit 54 extending from the rear end to the central portion is formed, and when the weight member 52 is stored in the storage portion 45, the release piece 51 of the holding member 18 is fitted into this slit 54.
As described above, in this embodiment, the holding member 1 having the above-described function is provided.
Since the holding member 18 is formed of a plate member and the holding member 18 is surrounded by the weight member 52 that is housed in the same housing portion 45, the lateral dimension of the casing 15 can be made as compact as possible.

Further, since the release piece 51 of the holding member 18 is fitted in the slit 54 of the weight member 52 which slides back and forth, the weight of the weight member 52 is not significantly reduced, and the dimension of the casing 15 in the front-rear direction is reduced. It has the advantage of being as short as possible. In addition, as the metal body forming the weight member 52, it is preferable to adopt brass which is unlikely to cause rust in order to secure good sliding in the front-rear direction for a long period of time.

The weight member 52 reciprocates back and forth in the storage portion 45 when the box body 3 is largely shaken, but when the shake is excessive due to an earthquake or the like, the weight member 52 is moved. 52 strongly collides with the release piece 51 of the holding member 18 inserted through the slit 54. Due to this collision, the holding member 18 biased forward by the second coil spring 49 is displaced rearward (left side in FIG. 1), and the hooking piece 48 of the holding member 18 separates from the hooking recess 47 of the dead bolt 16. Then, thereafter, the dead bolt 16 is projected upward by the first coil spring 17 to reach the lock position B.

In this case, the dead bolt 16 may project due to not so large vibration, and the door 5 may be involuntarily locked. Therefore, in this embodiment,
Since the deadbolt 16 moves up and down toward the lower surface 8A of the top plate 8, as shown in FIG. 1 (a), the top plate 8 is vertically moved to the position corresponding to the protruding end of the deadbolt 16. A release hole 55 penetrating therethrough is provided.

Therefore, even if the dead bolt 16 is projected by a vibration that is not so large, the top plate 8
The dead bolt 16 can be returned to the unlock position A by pushing the protruding end of the dead bolt 16 downward with a rod-shaped member (not shown) inserted into the release hole 55 from above. According to the auto lock device 1 according to the above embodiment,
When the dead bolt 16 is pushed down against the first coil spring 17, the retaining piece 48 of the holding member 18 causes the taper portion 4 to move.
8A and fits into the hook recess 47, and the dead bolt 1
The door 6 can be freely opened and closed in a normal case where the box body 3 is held in the unlocked position A and the box body 3 is not largely shaken.

On the other hand, when the box body 3 is excessively shaken due to an earthquake or the like, the holding member 48 releases the holding by the impact force when the weight member 52 collides with the releasing piece 51 of the holding member 18 as described above. Then, the dead bolt 16 is automatically and instantly set to the lock position B, so that the dishes in the cupboard 2 can be prevented from jumping out. In the above embodiment, when a strip-shaped summing member that closes the gap between the doors 5 is fixed to the edge of one of the left and right doors 5, the other door 5 is fixed. One door 5 cannot be opened unless it is opened. Therefore, it suffices to provide the bracket 40 only on the other door 5 and provide the box body 3 with one auto-lock device 1 for automatically locking the bracket 40.

However, when the summing member is pivotally attached to one of the doors 5 so as to be swingable, brackets 40 are provided on both the left and right doors 5 as in a second embodiment described later. It is necessary to provide the auto-lock device 1 at each position of the box body 3 corresponding to the bracket 40.
Further, in the case of the storage box 2 having the one-sided door 5, the auto-lock device 1 can be attached to the vertical side surface of the box body 3.

The present invention can be widely applied not only to the cupboard 2 but also to furniture such as a bookshelf and a closet, and a storage box equipped with a wing. Next, FIGS. 4 to 8 show a second embodiment of the present invention. In this embodiment, the door 5 provided with the summing member 59 can be opened and closed independently.
The case where the auto-lock device 1 of the present invention is adopted in the storage box 2 pivotally attached to the one door 5 is shown.

In FIG. 4, the storage box 2 of this embodiment.
Is used for furniture such as a closet, a tableware case, a makeup case, and the like. The box body 3 is assembled in a rectangular frame shape from the left and right side plates 3A, the top plate 8 and the bottom plate 9, and the front opening of the box body 3. The portion 4 is provided with a pair of left and right doors 5L and 5R that closes the opening 4 so as to be openable and closable. The pair of left and right doors 5L and 5R are so-called double-door type doors whose outer edges in the width direction are pivotally attached to the side plates 3A of the box body 3 via hinges or the like and are rotatable inward and outward of the storage box 2. A handle 57 is fixed to the center of the outer surface of each of the doors 5L and 5R.

A plate piece 58 is stretched at the tip of both doors 5L and 5R and on the lower part of the inner surface, and this plate piece 58 also serves as the bracket 40 necessary for the automatic lock device 1.
That is, as shown in FIGS. 4 and 7, the bracket 40
The mounting plate 42 is formed as a strip plate that is long in the width direction and has a function as a plate piece 58 that is attracted to the magnet 11 of the contact member 10.

Abutting members 10 for fixing the summing member 59, which will be described later, to the closed position are fixed to the top plate 8 and the bottom plate 9 on the side of the opening 4 and in the center in the width direction. FIG.
As shown in FIG. 6, the upper and lower contact members 10 each have the contact surface 60 of the summing member 59 in the center of the front surface, and draw the plate piece 58 to close both doors 5L and 5R. There are magnets 11 on both front and left sides. Further, of the upper and lower contact members 10, the casing 15 of the auto lock device 1 is integrally incorporated at both left and right ends of the upper contact member 10U.

That is, the casing 15 of the auto lock device 1 is fitted into the mounting recesses 11A formed at the left and right ends of the contact member 10U so that the dead bolt 16 is directed to the front side (the opening side of the box body 3). Has been. The mounting recess 11A serves as a mounting portion for the casing 15 and also serves as a space for securing the insertion space 24.

Thus, in this embodiment, the contact member 10
Since the casing 15 of the auto lock device 1 is integrally incorporated in the above, the casing 15 of the auto lock device 1 is attached to the top plate 8 at the same time when the contact member 10 is fixed to the top plate 8. If the bracket 40 is arranged so that the mounting plate 42 is attracted to the magnet 11,
Since the dead bolt 16 and the engaging hole 44 of the bracket 40 can be easily aligned with each other, the labor for mounting the bracket 40 can be reduced.

Since the internal structure of the auto lock device 1 itself is the same as that of the first embodiment, the same reference numerals are given to the drawings and the description thereof will be omitted. Further, in this embodiment, since the auto lock devices 1 are arranged side by side on the left and right sides of the contact member 10, as shown in FIG. 4 and FIG.
The top plate 8 is provided with two release holes 55 for releasing the lock.

Further, in this embodiment, the lower contact member 10 is used.
Although the automatic lock device 1 is not provided in L, if the space for operating the dead bolt 16 can be secured from the release hole 55 provided in the bottom plate 9, the automatic lock device 1 is also provided in the lower contact member 10L. Can be provided. The summing member 59 is for closing the gap e between the tips of the two doors 5L and 5R when the door is closed, and is arranged on the inner surface of the tip of the left door 5L in the vertical direction via a pair of upper and lower auto hinges 61. It is pivotally mounted around the shaft 62 and inward and outward in the storage box 2. The summing member 59 is made of a long strip plate material having a length substantially the same as the inner height of the box body 3, and is formed in an arcuate cross-section so that the edge portion on the right side in the width direction makes a smooth sliding contact with the contact member 10U. Has been done.

As shown in FIG. 5, the pair of upper and lower auto hinges 61 are fixed blades 6 fixed to the tip of the left door 5L.
3 and a movable wing 64 that supports the summing member 59. On the surface of the fixed wing 63, a pair of pivot brackets 65 facing each other and a restriction wall 64 that connects between one side edges of the bracket 65 are erected, and the shaft 62 is vertically moved between the brackets 65. It is erected in the direction.

The movable wing 64 is fixed to the inner surface of the summing member 59 to support the summing member 59 rotatably, and an arm extending from one side edge of the support plate 67 in the width direction. The shaft 62 is provided with a pair of upper and lower tubular portions 69 provided at the distal end of the arm portion 68, and the shaft portion 62 is inserted into the tubular portion 69 disposed between the pivot brackets 65, so that the shaft 62 is fixed to the fixed blade 63. It is attached so that it can rotate around. The movable wing 64 is made of a resin material such as plastic that allows the arm portion 68 to elastically deform in the rotating direction.

The arm portion 68 of the movable blade 64 is bent in a V-shape in cross section and has a contact surface 70 with the restriction wall 66 on the rear side. As shown in FIG. 7, the movable blade 64 is fixed. Wings 6
The rotation angle α with respect to 3 is set to be smaller than 90 degrees by the contact surface 70 of the arm portion 68 contacting the regulation wall 66. Then, by fixing the summing member 59 to the left door 5L so that the rotation angle α of the movable blade 64 faces the right door 5R side, the summing member 5
The swinging range of 9 to the left is regulated within 90 degrees.

A winding spring 71 for biasing the arm portion 68 of the movable blade 64 toward the regulating wall 66 side of the fixed blade 63 is fitted between the cylindrical portions 69 of the shaft 62. In this embodiment, By this winding spring 71, the summing member 15
Is always urged in the inward swinging direction when attached to the left door 5L. Therefore, as shown in FIG. 7, when the door 5L is opened, the summing member 59 is held in a state of being inclined inward from the inner surface of the door 5L by the rotation angle α.

In the storage box 3 having the calling device of the above construction, first, as shown in FIG. 7, when the left side door 5L is open and the right side door 5R is closed, The mating member 59 is biased inward (upper side in FIG. 1) by the winding spring 71, so that the mating member 59 is held in a state of being tilted by the rotation angle α from the inner surface of the left door 5L.

At this time, since the right door 5R is closed, the mounting plate 42 (plate piece 58) of the right bracket 40 is attached.
Is attracted to the magnet 11, and the engaging plate 43 of the bracket 40 is positioned in the insertion space 24 so that the engaging hole 44 thereof corresponds to the dead bolt 16. When the left side door 5L is closed from this state, the edge portion of the summing member 59 contacts the contact surfaces 60 of the upper and lower contact members 10. When the door 5L on the left side is further pushed from there, the summing member 59 receives a reaction force from the abutment surface 60 while sliding on the abutment surface 60 and resists the biasing force of the winding spring 71 to the front side ( When the left door 5L is completely closed, as shown in FIG. 8A, both doors 5L,
The gap e between the 5R tips is closed from the inside of the storage box 2 by the summing member 59.

At this time, since the left door 5L is also closed, the mounting plate 42 (the plate piece 5) of the left bracket 40 is closed.
8) is attracted to the magnet 11, and the engaging plate 43 of the left bracket 40 is located in the insertion space 24 so that the engaging hole 44 thereof corresponds to the dead bolt 16. On the other hand, when both doors 5L and 5R are closed, it goes without saying that the right door 5R can be opened independently, and by the operation procedure reverse to the above,
Only the left door 5L can be opened while the right door 5R is closed.

A contact member 10 incorporating the above-described auto-lock device 1 and a bracket 4 for locking the door 5 are provided.
The plate piece 58 that doubles as 0 can also be used in the storage box 2 that does not include the above-mentioned summing device in which the summing member 59 is swingably attached. The above examples are illustrative and not limiting. That is, the scope of the present invention is shown by the claims described above,
All variations that come within the meaning of that claim are intended to be included in the invention.

[0059]

As described above, according to the present invention,
Since it is possible to incorporate an auto-lock device that automatically locks the wings by detecting a large shaking generated in the box body into the box body, the stored items can be removed from the outside during an earthquake without hindering the appearance of furniture. It is possible to effectively prevent the jumping out to and to minimize the damage caused by the earthquake (claim 1).

According to the second aspect of the invention, since the holding member can be taken into the cross section of the weight member, the autolock device can be made as compact as possible and the material cost thereof is low. It can be suppressed. According to the invention described in claim 3, since the dead bolt can be returned to the unlocked position only by pushing the protruding end of the dead bolt downward with the rod-shaped member inserted into the release hole, the automatic lock device is provided in the box body. Notwithstanding, the dead bolt can be easily unlocked.

According to the invention as set forth in claim 4, since it is possible to save the labor of mounting the casing separately from the contact member, the mounting work of the auto-lock device becomes simple. According to the invention described in claim 5, since the bracket is integrally formed on the plate piece, the number of parts can be reduced, and the manufacturing cost and material cost of the auto-lock device can be further reduced.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention, (a) is a vertical cross-sectional view of the upper part of a cupboard (storage box) showing the mounting structure of an automatic lock device, and (b) is the same device. It is the longitudinal cross-sectional view which expanded.

FIG. 2 is an exploded perspective view of the device.

FIG. 3 is a perspective view of a cupboard to which the device is attached.

FIG. 4 is a perspective view of a storage box having an auto lock device according to a second embodiment.

FIG. 5 (a) is a perspective view showing a mounting structure of a dressing member, and FIG. 5 (b) is a perspective view of an auto hinge for mounting the dressing member on a wing.

FIG. 6 is a front view of an upper contact member.

FIG. 7 is a plan view of the upper contact member immediately before the wings are closed.

8A is a plan view of the upper contact member after the wings are closed, and FIG. 8B is a sectional view taken along line BB in FIG. 8A.

[Explanation of symbols]

 1 Auto-lock device 2 Storage box (cupboard) 3 Box body 4 Opening 5 Wing (door) 5A Wing inner surface 8A Box body inner surface (bottom surface of top plate) 10 Contact member 11 Magnet 15 Casing 16 Dead bolt 18 Holding Member 19 Auto-locking means 40 Bracket 45 Storage part 48 Locking part (locking piece) 52 Weight member 55 Release hole 58 Plate piece A Unlock position B Lock position

Claims (5)

[Claims] 1. A casing (15) which is attached to an inner surface (8A) of an opening edge of a box body (3) in which a wing (5) is pivotally attached to an opening (4) opening to the front, and the casing (15). 15) A lock position (B) that is inserted into and retracted from the inside of the wing (5) and that engages with a bracket (40) fixed to the inner surface (5A) of the wing (5) to prevent the wing (5) from opening. And the dead bolt (16) biased to the casing (15) such that the dead bolt (16) is at an unlock position (A) where the dead bolt (16) is released from the bracket (40). A holding member (18) to be held inside, and an inertial force caused by excessive shaking generated in the box body (3) is applied to the holding member (18) to cause the holding member (1).
8) An automatic lock device for a storage box with a wing, comprising: an automatic lock means (19) for releasing the dead bolt (16) from the dead bolt (16). 2. A casing (15) is formed with an accommodating portion (45) extending in the front-rear direction so as to intersect with a direction in which the dead bolt (16) extends and retracts, and a holding member (18) comprises the dead bolt (16). It is made of a plate material which is guided in the housing portion (45) so as to be movable in the front-rear direction in a state of being biased to the side and has a dead bolt (16) hooking portion (48) at its front end portion. The (19) is loaded in the storage section (45) so as to be movable in the front-rear direction, and collides with the holding member (18) when the storage section (45) moves rearward, and the hooking section (4) thereof is provided.
8) is composed of a weight member (52) for releasing the dead bolt (16) from the dead bolt (16), and the weight member (52) surrounds the holding member (18) guided in the storage section (45). The automatic lock device for a storage box with wings according to claim 1, which is made of a metal body formed in a letter shape. 3. A casing (15) is fixed to the inner surface (8A) of the box body (3) so that the dead bolt (16) moves toward and away from the inner surface (8A) of the opening edge of the box body (3). The box body (3) is provided at a position corresponding to the projecting end of the dead bolt (16) at the opening edge of (3).
The automatic lock device for a storage box with wings according to claim 1 or 2, further comprising a release hole (55) communicating with the inside and outside of the box. 4. A wing (5) is provided with an abutment member (10) having an attracting surface by a magnet (11) on the front side on the inner surface (8A) of the opening edge of the box body (3).
In a storage box (2) having a plate piece (58) attracted to the magnet (11) fixed to the inner surface (5A) of the casing, a casing (15) is integrally formed with the contact member (10). The automatic lock device for a storage box with wings according to claim 1. 5. The automatic lock device for a storage box with wings according to claim 4, wherein the bracket (40) is integrally formed with the plate piece (58).