JPH11155668A - Furniture and automatic lock device of container box with wing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To find out poor sensitivity caused by rusting an intruding an extraneous substance in an early stage by easily monitoring an internal mechanism within a casing from the outside. SOLUTION: In this device, an inertia member 19 for moving according with a quake of the earthquakes, a lock member 16 for moving to a lock position 13 that prevents from opening a wing 5 rotatably attached to a box main body 3 associating with a movement of the inertia member 19, are provided within a casing 15 fixed to the box main body 3. In this case, one part or a whole part of the casing 15 is formed from transparent materials for monitoring the inertia member 19 or the lock member 16, or the both from the outside with the eye.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically locking a storage box with a wing and furniture having the device.

[0002]

2. Description of the Related Art For example, in a storage box with a wing represented by furniture such as a cupboard, a bookcase, a closet, a makeup case, a top bag, etc., a door (wing) is opened at the opening of a box body having an open front. It is pivoted in the shape. In a storage box with a wing represented by the above-mentioned furniture, since a storage article is frequently taken in and out, a lock device is generally rarely provided, and even if a lock device is provided, a user does not use the lock device much. Many.

[0003] For this reason, as can be seen from the experience of the Great Hanshin Earthquake, when the storage box is greatly shaken due to a large earthquake, the closed door is opened due to the shaking, and the storage articles such as tableware are removed. It may jump out and cause damage to stored items or injury to occupants.

In view of the above, the applicant of the present application has disclosed an inertial member which moves with the shaking of an earthquake inside a casing fixed to the box body, and which projects outside the casing in conjunction with the movement of the inertial member. (Japanese Patent Application No. 8-336) has already filed an auto-locking device for a storage box with a wing provided with a locking member for locking a wing pivotally attached to a box body in a closed state.
No. 067, Japanese Patent Application No. 8-282654, Japanese Patent Application No. 7-33
No. 5323, Japanese Patent Application No. 7-181739, Japanese Patent Application No. 7-1
34376).

[0005]

The above-mentioned auto-lock device is used, for example, furniture such as a cupboard and a top bag is installed in a kitchen, but the upper space of the kitchen where cooking is frequently performed is humid. In addition, dust tends to stick to the upper part of the furniture due to the heat during cooking.

However, in the above-described conventional auto-locking device, the casing having the inertia member, the lock member, and the interlocking mechanism for interlocking these members is made of an opaque resin material or a metal material. Is not visible from the outside, rust is generated on the metal inertia member or the interlocking mechanism by moisture, or foreign matter such as dust enters the moving or sliding portion of the inertia member or the lock member. However, they cannot be discovered early.

Therefore, in the conventional auto lock device, even if there is a defect in sensitivity due to the generation of rust or foreign matter intrusion, it is difficult to inspect the defect unless the casing is disassembled, so that the user does not notice such a defect in sensitivity. If left unattended, it is possible that the auto-lock mechanism inherent in the device does not operate during an important earthquake. Therefore, an object of the present invention is to make it easy to visually recognize an internal mechanism in a casing from the outside, so that a defect in sensitivity due to generation of rust or intrusion of foreign matter can be found at an early stage.

[0008]

Means for Solving the Problems In order to achieve the above object, the present invention employs the following technical means. That is, the present invention closes the inertia member that moves in response to the shaking of the earthquake and the wing that is pivotally attached to the box body in conjunction with the movement of the inertia member in the casing fixed to the box body. A lock member that projects to the outside and moves to a lock position that prevents the opening of the wing that is pivotally attached to the box body by the projecting portion. The casing has a portion made of a transparent material so that the member, the lock member, or both of them can be viewed from the outside.

In this case, even if rust is generated on the metal inertia member itself, or foreign matter such as dust enters the moving portion or the sliding portion of the inertia member or the lock member, it can be easily removed from the transparent portion of the casing. Can be visually observed. Therefore, if the user is instructed to periodically inspect the transparent portion of the casing, it is possible to promptly detect the occurrence of rust in the internal mechanism and the poor sensitivity due to the intrusion of foreign matter.

In the present invention, in order to make a part of the casing a transparent material, a means for closing an opening window formed in a part of the casing with a transparent resin material can be considered, but this requires a large number of processing steps. And the manufacturing cost increases. Therefore, if the entire casing is integrally formed of a transparent material, it is not necessary to form an opening window in a part and close the opening window, so that the manufacturing cost can be reduced. Further, if the entire casing is transparent, all the internal mechanisms other than the inertia member and the lock member in the casing can be visually observed from the outside, so that early detection of poor sensitivity and other causes of failure can be further ensured.

Further, if not only the casing but also the lock member itself is made of a transparent material, it becomes easier to check whether or not foreign matter has entered the gap between the casing and the lock member.

In the present invention, as the transparent material, a synthetic resin material such as acrylic resin or a ceramic material such as glass can be used. In the present invention, "transparent" is not only a completely clear colorless and transparent case, but also a broad concept including a colored transparent one and a frosted glass one as long as it meets the intended purpose of visual observation inside the casing. Means

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 8 show a first embodiment of the present invention. FIG. 2 shows a storage box 2 employing the auto-lock device according to the present invention. The storage box 2 is used for a closet, a tableware case, a makeup case, a kitchen top bag and other furniture. Left and right side plates 3
A, a box body 3 assembled in a rectangular frame shape from the top plate 8 and the bottom plate 9, a pair of left and right doors (wings) 5 that open and close the opening 4 in the front opening 4 of the box body 3. It has.

The pair of left and right doors 5 has a widthwise outer edge pivotally attached to a side plate 3A of the box body 3 via a hinge 6, and is a so-called double-opening type which is rotatable inward and outward of the storage box 2. I have. The hinge 6 incorporates a spring, which urges the door 5 in the closing direction.

On the top plate 8 of the box body 3, the locking device body 1 of the auto-lock device, which automatically prevents the pair of left and right doors 5 from opening due to shaking such as an earthquake, corresponds to the pair of left and right doors 5. Are attached in pairs.

As shown in FIG. 1, this lock device main body 1
Is a synthetic resin casing 1 attached to the lower surface 8A of the front edge of the top plate 8 (the inner surface of the opening edge of the box body 3).
5, a lock member composed of a synthetic resin dead bolt 16 inserted vertically into and out of the casing 15, a metal first coil spring 17 for constantly urging the lock member upward, and a dead bolt. An inertia member made of a metal holding member 18 that holds the housing 16 in the casing 15 in advance and a metal ball that detects the shaking of the box body 3 due to an earthquake or the like and releases the holding member 18 from the dead bolt 16. 19 is provided.

As shown in FIGS. 1 and 3, the casing 1
5 is provided with a case main body 20 having an upper surface side which is screwed to the lower surface 8A of the top plate 8 and a lid member 22 for closing the upper surface opening of the case main body 20. The front end of the case main body 20 has A guide cylinder portion 21 having a bottomed tubular shape and opened upward for guiding the dead bolt 16 so as to be able to move back and forth is formed.

The case body 20 and the lid member 22 which are constituent members of the casing 15 are both made of a transparent synthetic resin such as an acrylic resin, so that the dead bolt 16 and the holding member 18 in the casing 15 are provided. ,
All the internal mechanisms such as the inertia member 19 can be viewed from the outside. In the present embodiment, the holding member 1
8 and the inertia member 19 move in the opening / closing direction of the door 5 (FIG. 1).
(The left-right direction of FIG. 1), the casing 15 is arranged so as to coincide with the direction of opening the door 5 (right side in FIG. 1).
Is defined as the front, and the direction in which the door 5 is closed (the left side in FIG. 1) is defined as the rear.

As shown in FIG. 1, the dead bolt 16 in the guide tube 21 is
Is screwed to the lower surface 8A of the top plate 8 via a spacer portion 23 projecting from the lid member 22 so as to be spaced from the top plate 8 at an appropriate distance.
5 and the insertion space 24 of the bracket 40 is formed. The dead bolt 16 is inserted through the guide cylinder 21 so as to be vertically movable.

As shown in FIG. 3 and FIG.
Is a rectangular plate-shaped lid main body 25 for closing the upper opening of the case main body 20, a spacer portion 23 integrally formed on the rear end upper surface side of the lid main body 25, and a front end lower surface side of the lid main body 25. And a guide piece 26 formed integrally with the guide piece. The lid member 22 is fixed to the case main body 20 by a mounting screw (not shown) inserted through first screw holes 27 provided in the front left and right sides of the lid main body 25 and the center of the spacer portion 23.

In the center of the front end of the lid main body 25, an insertion hole 25A for the dead bolt 16 is formed, and on the left and right sides of the lower surface of the lid main body 25, the positioning holes 28 provided in the case main body 20 are fitted. Positioning pins 29 for positioning with respect to the main body 20 are protruded (see FIG. 5). As shown in FIG. 5, the guide piece 26 protrudes downward from the center of the lower surface of the lid member 22 and fits into the front part of the storage part 45 formed at the center in the width direction of the case body 20. At this time, the front portion of the holding member 18 is guided in the front-rear direction (the left-right direction in FIG. 1). That is, a guide groove 31 that opens downward and extends in the front-rear direction is formed at the center of the guide piece 26. By inserting the front portion of the plate-shaped holding member 18 into the guide groove 31, 18 is guided in the front-back direction.

A second screw hole 32 is formed at each of the left and right ends of the spacer portion 23 and the case main body 20, and a mounting screw inserted upward into the second screw hole 32 is attached to the top plate 8.
The casing 15 is fixed to the top plate 8 via the spacer portion 23 of the lid member 22 that closes the casing 15 by screwing it toward the lower surface 8A. As shown in FIGS. 1 and 3, the dead bolt 16 has a length substantially equal to the inner space length of the guide cylinder 21, and has a bottomed spring storage hole 34 extending from the lower end to the center. It is inserted into the guide cylinder 21 together with the first coil spring 17 housed in the hole 34.

At this time, the lower end of the first coil spring 17 is fitted over the connecting pin 36 erected on the bottom wall 35 of the guide cylinder 21 and is housed in the spring housing hole 34 in a compressed state. For this reason, the dead bolt 16 is constantly urged upward by the first coil spring 17. In the present embodiment, the dead bolt 16 is also used for the case body 20 and the lid member 2.
Like the case No. 2, it is made of a transparent synthetic resin such as an acrylic resin. For this reason, the guide cylinder 2 of the casing 15
It is easier to check whether a foreign substance has entered the gap between the first bolt 1 and the deadbolt 16,
The generation of rust of the first coil spring 17 is also easily visible from outside.

A pair of left and right stoppers 37 project from the lower portion of the side surface of the dead bolt 16, and a vertical guide groove 38 is formed between the stoppers 37. The stopper 37 is formed at the stepped portion 2 formed at the front end of the guide piece 26.
6A (see FIG. 5) restricts the dead bolt 16 from coming out upward. On the other hand, on the inner surface 5A of the door 5, a bracket 4 that is locked by the dead bolt 16 protruding to the lock position B and restricts the opening of the door 5 is provided.
0 is fixed by mounting screws 41.

The bracket 40 is formed by bending a mounting plate 42 and a locking plate 43 perpendicular to the mounting plate 42 into a substantially L-shape in side view. The locking plate 43 includes a relief portion 44 formed by bending a portion from a middle portion to a front end upward.
In addition, a hook claw 44A that hooks on the protruding end of the dead bolt 16 that has moved to the lock position B is provided at the tip (the end on the storage box 3 side).

The bracket 40 is attached such 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 mounting screws 41. The mounting position is
When the door 5 is closed, the locking plate 43 is at the same plane position as the position where the dead bolt 16 is retracted, and is at a height position where it enters the insertion space 24.

For this reason, when the dead bolt 16 is accommodated in the guide cylinder portion 21 (the phantom line in FIG. 1), the dead bolt 16 is released from the bracket 40, and
The unlock position A allows the door 5 to be opened. On the other hand,
When the dead bolt 16 protrudes upward (solid line in FIG. 1), the lock position where the upper part of the dead bolt 16 enters the escape portion 44 of the bracket 40 fixed to the door 5 to prevent the door 5 from being opened. B.

The case body 20 of the casing 15 is formed with a storage portion 45 extending in the front-rear direction (the opening / closing direction of the door 5, the same as the left-right direction in FIG. 1) so as to intersect with the retreating direction of the dead bolt 16. The holding member 18 is inserted into the center of the storage portion 45 in the left-right 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 formed of a metal slide plate formed in a substantially rectangular plate shape, and a pair of left and right guide plates 46, which are vertically erected at the center of the bottom surface of the storage unit 45 and are long in the front-rear direction.
By being fitted vertically between 46, it is guided movably in the front-rear direction in the storage section 45.

Further, as shown in FIG.
A rolling member 19A (inertial member 19) described later is placed on a guide ridge 47 formed by the upper end edges of the members 6 and 46 so that the rolling friction resistance of the member 19A is reduced as much as possible. I have. As shown in FIG. 3, the plate-shaped holding member 18 has a hook piece (hook portion) 49 at a front end thereof which fits into a hook recess 48 formed on a side surface of the dead bolt 16.
A connecting piece 51 for connecting a second coil spring 50 for urging the holding member 18 toward the dead bolt 16 is provided at a rear end portion.

A notch 52 is formed in the center of the holding member 18 so as to be largely open upward.
A downwardly inclined tapered portion 49A is formed so as to push the holding member 18 rearward with the downward movement of the holding member 18. The second coil spring 50, which is attached by fitting the connecting piece 51 of the holding member 18 to the outside, is housed between opposing walls 50A (see FIGS. 3 and 4) erected at the rear of the housing part 45. The holding member 18 is constantly urged forward by contacting the rear wall surface. The latching piece 49 of the holding member 18 is forcibly fitted into the latching recess 48 of the dead bolt 16 by the urging force of the coil spring 50, whereby the dead bolt 16 is held in the unlock position A in advance. it can.

The automatic lock device according to the present embodiment further includes:
Regardless of whether the inertia member 19 moves in the rearward direction (left side in FIG. 1) away from the deadbolt 15 or in the forward direction (right side in FIG. 1) approaching the same, the holding member 18 is moved from the deadbolt 15. A release unit 71 for releasing is provided.

The release means 71 is provided with a first release part 72 disposed at the rear end of the holding member 18 so that the inertia member 19 moving rearward collides with the inertia member 19 moving forward. And a second release portion 73 arranged at the front end of the member 18. Among these, the first release part 72 in the present embodiment is composed of a release piece 72A integrally formed at the rear end of the holding member 18, and the second release part 73 is
And a release plate (release member) 73A separately provided.

That is, the first release section 72 is provided with the holding member 1.
Release piece 7 which is a rear end portion and an edge portion on the side of the escape concave portion 52
2A, the inertia member 19 formed directly on the holding member 18 and moved backward in the escape recess 52 is attached to the release piece 7.
The collision with 2A causes the holding member 18 to move rearward. On the other hand, the release plate 7 constituting the second release portion 73
3A is for moving the holding member 18 rearward due to its inertia force even when the inertia member 19 in the escape concave portion 52 moves forward. It is made of a steel plate that is swingably provided.

As shown in FIG. 3, the release plate 73
A is provided with an upper half collision plate part 74 and a lower half rocking plate part 75 by bending a steel plate material slightly in the vertical direction at the center. The inner wall portion 76 of the storage portion 45 of the case body 20 is formed with a tapered groove 77 that gradually widens upward. The left and right side edges of the swing plate portion 75 are formed in the tapered groove 77 from above. Mated.

The guide plates 46, 46 in the storage section 45
Are formed with escape openings 78 for preventing interference between the guide plates 46, 46 and the release plate 73A.
At the lower end of the swinging plate portion 75 of the release plate 73A, a reaction piece 79 is provided to protrude downward.
9 is fitted in an engagement groove 80 formed on the front side of the escape recess 52 in the holding member 18.

For this reason, the inertia member 19 is connected to the box body 3
Of the release plate 73A, the plate 73A oscillates, and at the same time, the reaction piece 79 of the release plate 73A moves rearward to move the holding member 18 rearward. The holding member 18 is released from the dead bolt 16. In addition, since the center portion of the release plate 73A is bent so that the collision plate portion 74 is slightly inclined to the side opposite to the dead bolt 16, the collision plate portion 74 is closer to the inertia member 19 as compared to a case where the bending plate is not bent. Will be. Accordingly, the release plate 73A operates only by slightly moving the inertia member 19 forward, and the vibration detection sensitivity is improved as compared with the case where the bending is not performed.

As the release member 73A that performs the above-described operation, not only a plate-shaped member (release plate) that is wide in the width direction of the casing 15 but also the middle part of the case body 20 is used.
An arm-shaped member pivotally attached to the side may be employed. That is, the release member 73A only needs to be a member having a link function capable of converting the forward movement of the inertia member 19 into the backward movement of the holding member 18, and the outer shape is not particularly limited.

In this embodiment, the inertia member 19 is composed of a rolling member 19A made of a metal ball.
8 and is accommodated in the accommodating portion 45 and is provided between the first releasing portion 72 and the second releasing portion 73 (releasing plate 73A) in the escape concave portion 52 of the holding member 18 so as to be freely rollable in the front-rear direction. I have. In addition, as the rolling member 19A,
In addition to the ball, a short-axis roller may be employed.

The rolling member 19A is held by the holding member 18 guided between the guide plates 46, 46 in the storage portion 45.
Is capable of generating an inertial force (collision force) sufficient to cause the second coil spring 50 to be pushed backward against the elastic force of the second coil spring 50 by shaking during an earthquake (for example, shaking with a seismic intensity of about 2 to 3). Designed to be.

As a material of the rolling member 19A, for example, brass is used as a metal which does not easily generate rust which can reliably roll with high sensitivity due to shaking due to an earthquake or the like and can maintain the sensitivity for a long period of time. However, the outer periphery of a steel material may be coated with a resin. Also, a resin in which a metal having a high specific gravity such as lead is embedded in a resin can be adopted.

The height of the intermediate portion of the holding member 18 is set to fit between the guide plates 46 so that the bottom edge 52A of the escape recess 52 of the holding member 18 is lower than the upper end surface of the guide ridge 47. As a result, the rolling member 19A rolls in the escape recess 52 without contacting the holding member 18, so that the rolling resistance is reduced and the operation sensitivity during an earthquake is improved.

The rolling member 19A reciprocates back and forth in the storage portion 45 when the box body 3 swings. If the shaking is large due to an earthquake or the like, the rolling member 19A has an inertia due to the rolling. The holding member 1 becomes stronger
8 collides with the first release unit 72 or the second release unit 73. Due to this collision, the holding member 18 urged toward the dead bolt 16 by the second coil spring 50 is displaced rearward (to the left in FIG. 1), and the locking piece 49 of the holding member 18 is moved to the locking recess of the dead bolt 16. After that, the dead bolt 16 is projected upward by the first coil spring 17 to be in the lock position B.

On the other hand, in this embodiment, the dead bolt 16
Is provided with a concave portion 81 for ensuring that the bracket 40 is hooked on the hooking claw 44A. As shown in FIG. 1 and FIG. 3,
The rear side surface of the protruding end of the bracket 16 is formed by carving a shallow portion over a certain range in the vertical direction, so that the hooking claw 44A of the bracket 40 is inserted into the recess 81 so that the dead bolt 16 (See FIG. 1).

Further, as shown in FIG.
6, a reinforcing plate 82 made of metal is embedded, and the edge of the reinforcing plate 82 constitutes the lower edge of the retaining recess 48, so that the retaining member 18 comes into contact with the retaining portion 49. This prevents the lower edge of the retaining recess 48 from being worn out early. On the other hand, as shown in FIG. 1, the locking plate 43 of the bracket 40 is provided with a relief portion 44 formed by bending a portion from a tip end portion to an intermediate portion upward. This escape part 44
Is formed so as to be located slightly behind the dead bolt 16 (inside the box body 3) when the door 5 is completely closed, and the base bent portion of the escape portion 44 is just dead. The bolt 16 is located on the rear side surface.

Therefore, when the dead bolt 16 is in the lock position B
As shown in FIG. 1, when the door 5 is slightly opened and the escape portion 44 comes directly above the dead bolt 16 as shown in FIG. The dead bolt 16 protruding from the escape portion 44
Is a hook claw 44A of the bracket 40 at its protruding end.
And restricts the wing 5 from moving in the opening direction.

As shown in FIG. 1, in the automatic lock device according to this embodiment, the dead bolt 16 is
The lock release mechanism 63 is provided for pushing the deadbolt 16 back to the unlock position A by further moving the door 5 in the closing direction from the state (FIG.

In the present embodiment, as the lock release mechanism 63, the middle part of the bracket 40 moving in the closing direction of the door 5 in the same direction directly abuts on the protruding end of the dead bolt 16. A cam mechanism 63A including first and second cam portions 61 and 62 formed in a shape to push back downward on the immersion side.

The first cam portion 61 is formed of a spring member 54 made of a metal leaf spring formed in a downwardly inclined shape in the middle of the locking plate 43 of the bracket 40. The spring member 54 is formed at an intermediate portion of the bracket 40 in the opening and closing direction of the door 5 so as to incline toward the protruding side of the dead bolt 16 as it approaches the dead bolt 16 side (the storage box 3 side).

On the other hand, the second cam portion 62 is
6 and is formed so as to be inclined toward the immersion side of the dead bolt 16 toward the bracket 40 side (outside of the box 3). Therefore, when the door 5 is moved from the state where the dead bolt 16 protruding to the lock position B is engaged with the escape portion 44 to the closed position, the cam portions 61 and 62 are pressed against each other to unlock the dead bolt 16. It is designed to press to position A.

That is, when the door 5 is further moved in the closing direction from the state in which the dead bolt 16 is engaged with the bracket 40 (the state in which the protruding end of the dead bolt 16 enters the escape portion 44), First cam part 6
1 comes into contact with the second cam portion 62 of the dead bolt 16, and the dead bolt 16 is pushed back to the unlock position A.

As shown in FIG. 6, the spring member 54 is fixed to the fixed plate portion 5 fixed to the inner surface of the mounting plate 42 of the bracket 40.
5 and a leaf spring having a contact plate 56 extending rearward from the upper edge of the fixed plate 55. The spring member 54 may employ not only a leaf spring but also a rod-shaped spring.

The contact plate portion 56 has a substantially C-shape when viewed from the side by bending a middle portion thereof downward, and a portion extending from the bent portion to the front end thereof is formed to be inclined forward and downward, thereby forming a dead end. A contact portion 57 (first cam portion 61) for contacting the projecting end of the bolt 16 is provided. The contact portion 57 is inclined at substantially the same angle as the second cam portion 62 of the deadbolt bolt 16 in a state of being inserted into the escape portion 44 of the bracket 40, and is longer than the second cam portion 62. It has a contact surface.

As shown in FIGS. 1 and 6, at the center in the width direction of the locking plate 43 of the bracket 40, the interference between the contact plate portion 56 elastically deformed upward and the locking plate 43 is prevented. An escape hole 58 is provided to avoid this. On the other hand, a third cam surface 64 that is bent forward and downward is provided at the distal end of the locking plate 43 of the bracket 40.

The third cam surface 64 can also be moved to the lock position B by moving the fully opened door 5 in the closing direction so that all parts of the bracket 40 are located outside the storage box 3. A dead bolt 16 can be pressed toward the unlock position A, and the door 5
When the dead bolt 16 projects to the lock position B in a state where the door 5 is greatly and completely opened, the dead bolt 16 and the bracket 40 interfere with each other to prevent the door 5 from being unable to close.

That is, when the dead bolt 16 projects to the unlock position A in a state where the door 5 is largely opened completely (the state of FIG. 7C), if the door 5 is closed and moved from this state, The cam surface 62 and the third cam surface 64 come into contact with each other and press the dead bolt 16 toward the unlock position A, so that the leading end of the bracket 40 can ride over the dead bolt 16. Position B
The door 5 in the fully open state can be easily closed even when
The door 5 can be closed smoothly.

According to the automatic lock device of the above embodiment, when the dead bolt 16 is pressed down against the first coil spring 17, the retaining piece 49 of the holding member 18 passes through the tapered portion 49A and the retaining concave portion. 48 to hold the dead bolt 16 at the unlock position A. For this reason, the deadbolt 16 is always held at the unlock position A in a normal case where no large swing occurs in the box body 3, and in this case, the door 5 can be freely opened and closed.

On the other hand, when the shaking of the box body 3 is larger than the assumed seismic intensity, the holding member 49 holds the rolling member 19A by the impact force when the rolling member 19A collides with the first releasing portion 72 or the second releasing portion 73. Is released. Therefore, FIG.
When the door 5 is slightly opened and the engaging concave portion 44 of the bracket 40 comes to just above the dead bolt 16 as shown in FIG. The part is hooked on the hook 44 </ b> A of the bracket 40, and the opening of the door 5 is prevented.

As a result, the stored items such as tableware in the storage box 2 are prevented from jumping out. And
When the door 5 is further moved in the closing direction from the state where the dead bolt 16 is engaged with the bracket 40 as described above, the first cam portion 61 of the bracket 40
6, the bolt 16 is brought into contact with the second cam portion 62 at the upper end and pushed back to the unlock position A, after which the holding member 18 holds the dead bolt 16 at the unlock position A, thereby releasing the lock. it can.

At this time, in the present embodiment, the inertia member 19
Backward from the dead bolt 16 and the bolt 16
No matter which direction of the forward direction approaches, the release means 71 composed of the first release part 72 and the second release part 73 releases the holding member 18 from the dead bolt 16, so that the first The dead bolt 16 can be instantaneously protruded to the lock position regardless of the direction of the swing in the front-rear direction, thereby preventing a difference in the detection sensitivity of vibration depending on the direction of the swing.

Further, in this embodiment, the lock by the dead bolt 16 can be released by one touch only by pushing the door 5 in the closing direction, so that the auto-lock device is locked by a slight vibration without being affected by an earthquake. Even in such cases,
The lock can be released with a very simple operation. Further, since the lock can be released by a very simple operation of pushing back the door 5, even if the sensitivity of the automatic lock device for detecting the swing is increased, the use of the storage box 2 is not inconvenient. The sensitivity of the shake detection of the device can be made extremely sharp.

Next, the operation of the automatic lock device will be described in more detail with reference to FIGS. First, FIG.
As shown in (a), when the dead bolt 16 is held at the unlock position A, both the locking plate 43 of the bracket 40 and the spring member 54 can freely insert the insertion space 24 on the locking device body 1 side. In this case, the door 5 can be freely opened and closed.

On the other hand, when the shaking of the box main body 3 is larger than the assumed seismic intensity, the rolling member 19A moves the holding member 1
8 is released by the impact force when it collides with the release portions 72 and 73 of FIG. Therefore, FIG.
As shown in (b), when the door 5 is slightly opened and the escape portion 44 of the bracket 40 comes directly above the dead bolt 16, the dead bolt 16 automatically moves to the lock position B, and the dead bolt 16 The protruding end of the hook 16 is hooked on the hook 44 </ b> A of the bracket 40, and the opening of the door 5 is prevented.

At this time, in this embodiment, the bracket 4
The hook claw 44 </ b> A of the zero is the concave portion 81 of the dead bolt 16.
Since they are engaged with each other in the state where
Even if the deadbolt 16 slightly falls in the opening direction of the door 5 due to play or the like with respect to the guide cylindrical portion 21 of the guide 5, it is possible to prevent the hanging portion 43 </ b> A of the bracket 40 from coming off in the opening direction of the door 5.

Then, the deadbolt 1 shown in FIG.
When the door 5 is moved in the closing direction from the state in which the bracket 6 is engaged with the bracket 40, the first cam portion 61 of the bracket 40 is moved.
The (spring member 54) comes into contact with the second cam portion 62 at the upper end of the dead bolt 16 and pushes the bolt 16 back to the unlock position A. Thereafter, the holding member 18 holds the dead bolt 16 at the unlock position A, As a result, the lock by the dead bolt 16 is released.

In this case, in this embodiment, the first cam portion 6
Since the spring member 54 which can be elastically deformed in the vertical direction is adopted as 1, as shown in FIGS. 7 (b) and 8 (a) and 8 (b), the same Even if the mounting height of the bracket 40 is slightly changed, the first cam portion 62 surely comes into contact with the protruding end portion (second cam portion 62) of the dead bolt 16, and therefore, is formed by the cam mechanism 63A. The lock release mechanism 63 can be operated more reliably.

As shown in FIG. 7C, even if the dead bolt 16 is protruding in a state where the door 5 is completely opened, if the door 5 is moved in the closing direction as it is, the bracket 40 Since the third cam portion 64 formed at the tip pushes down the second cam portion 62 of the dead bolt 16, the door 5 can be easily closed without pushing back the dead bolt 16 with a finger.

In the above embodiment, the left and right doors 5
When a strip-shaped mating member that closes the gap between the two doors 5 is fixed to the edge of one of the doors 5, the other door 5 cannot be opened unless the other door 5 is opened. I ca n’t
It suffices to provide the bracket 40 only on the other door 5 and provide the box body 3 with one lock device body 1 for automatically locking the bracket.

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

In the first embodiment, as shown in FIG. 3, a rounded round portion 18R is formed below the front and rear ends of the holding member 18, so that the holding member 18 is This also improves the sensitivity of vibration detection.

In the first embodiment, only the bracket 40 is provided with the cam portion 61, and only the cam portion 61 is moved in the closing direction of the wing 5 so that the bracket 40 is moved.
May press the dead bolt 16 at the lock position B to the unlock position A. Further, only the dead bolt 16 is provided with a cam portion 62 so that the dead bolt 16 at the lock position B is pressed by the bracket 40 to the unlock position A by the movement of the wing 5 in the closing direction only by the cam portion 62. You may.

That is, the cam mechanism 63A can be constituted by not only the first and second cam portions 61 and 62 but also only one of them. The first cam portion 61 can also be provided directly on the bracket 40 by bending the inclined portion 40A (see FIG. 8A) on the locking plate 43 of the bracket 40 instead of the spring member 54. .

On the other hand, in the first embodiment, the inertia member 19 for detecting the swing and releasing the holding member 18 from the dead bolt 16 is constituted by a roller-shaped or ball-shaped rolling member 19A. Alternatively, the inertia member 19 may be constituted by a weight member that slides on the holding member 18 (for example, see Japanese Patent Application No. 7-134376).

FIG. 9 shows a second embodiment of the present invention. In this embodiment, an external type in which the lock device main body 1 is attached to the outer surface 8B of the top plate 8 of the box main body 2 is employed. ing. In this case, the dead bolt 16 is urged downward on the outside of the door 5 and
Protrudes to the lock position A, it directly engages with the upper edge of the door 5 and prevents the door 5 from being opened. For this reason, in the external type auto lock device, the bracket 4 is attached to the inner surface of the door 5.
There is no need to provide 0.

Also in the second embodiment, the case body 20, the lid member 22, and the deadbolt 16, which are constituent members of the casing 15, are all formed of a transparent resin member. In the second embodiment, since the projecting direction of the dead bolt 16 is upside down, the casing 1
Although the mounting direction of the holding member 18 and the release plate 73A in FIG. 5 is upside down from that of the first embodiment, the operation itself of the auto-lock device is almost the same as that of the first embodiment. , And the detailed description thereof is omitted.

FIG. 10 shows a third embodiment of the present invention. In this embodiment, as the lock member, a swing arm 90 provided vertically swingably inside the casing 15 is employed, and the swing arm 90 is thick at the rear end located inside the casing 15. It has a contact portion 91 and a hook portion 92 at a front end protruding outside the casing 15, and is integrally provided with a pivot pin 93 at an upper rear end.

In the casing 15, an inertia member 19 made of a metal ball is housed so as to directly contact the contact portion 91. The bracket 40 of the door 5 has a hooked portion 94 that is hooked on the hook portion 92. Also in this embodiment, the casing 15 and the swing arm 90 made of resin are all made of a transparent resin material.

The weight of the swing arm 90 is set so that the portion on the front side of the pivot pin 93 is slightly heavier than the portion on the rear side of the pin 93. In normal times, the hook portion 92 is at the lower unlocked position A due to gravity.

When the inertia member 19 moves back and forth inside the casing 15 due to the shaking of the earthquake, the inertia member 19
Pushes the contact portion 91 of the swing arm 90 from behind to swing the arm 90 around the pivot pin 93. As a result, the hook portion 92 of the swing arm 90 moves upward (locked position) and is caught by the hooked portion 94 of the bracket 40, so that the opening of the door 5 is prevented.

In each of the above-described embodiments, by closing the opening window formed in a part of the casing 15 with a transparent resin material, only a part of the casing 15 may be made of a transparent member. In this case, since it takes a lot of time and effort to manufacture, it is preferable to integrally mold the casing 15 with a transparent resin. Each of the embodiments described above is illustrative and not restrictive. That is, the scope of the present invention is defined by the appended claims, and all modifications that fall within the meaning of the claims are included in the present invention.

[0080]

According to the present invention, since the internal mechanism in the casing can be easily visually observed from the outside, it is possible to early detect a defect in sensitivity due to generation of rust or intrusion of foreign matter.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view showing an automatic lock device according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a storage box to which the automatic lock device is mounted.

FIG. 3 is an exploded perspective view of the same auto lock device.

4A is a plan view of a case main body, FIG. 4B is a side sectional view of the case main body, and FIG. 4C is a rear view of the case main body.

5A is a plan view of the lid member, FIG. 5B is a side view of the lid member, FIG. 5C is a front view of the lid member, FIG. 5D is a rear view of the lid member, and FIG. FIG. 4 is a side sectional view of the lid member.

6A is a plan view of the bracket, FIG. 6B is a side view of the bracket, and FIG. 6C is a rear view of the bracket.

FIGS. 7A and 7B are explanatory views of the operation of the automatic lock device according to the first embodiment, in which FIG. 7A shows a state in which the dead bolt is at an unlock position, and FIG. The figure which shows the state by which opening was blocked, (c).
FIG. 4 is a diagram showing a state where a dead bolt is at a lock position but a door is open.

FIG. 8A is a diagram showing a state in which the mounting position of the bracket has changed upward in the automatic lock device of the first embodiment, and FIG. 8B shows a state in which the mounting position of the bracket has changed downward. FIG.

FIG. 9 is a central longitudinal sectional view showing an automatic lock device according to a second embodiment of the present invention.

FIG. 10 is a central longitudinal sectional view showing an auto-lock device according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lock device main body 2 Storage box 3 Box main body 5 Wing (door) 15 Casing 16 Lock member (dead bolt) 19 Inertial member 90 Lock member (swing arm)

Claims (4)

[Claims] An inertia member (19) that moves in response to a shaking of an earthquake in a casing (15) fixed to a box body (3), and the box moves in conjunction with the movement of the inertia member (19). A lock member (16) (90) that moves to a lock position (B) for preventing opening of a wing (5) pivotally attached to a main body (3); In the above, the inertia member (19) or the lock member (16) (9)
0) or an auto-locking device for a storage box with wings, wherein the casing (15) has a portion made of a transparent material so that both of them can be viewed from the outside. 2. The automatic locking device for a storage box with wings according to claim 1, wherein the entire casing (15) is made of a transparent material. 3. The automatic locking device for a storage box with a wing according to claim 2, wherein the locking members (16) and (90) are made of a transparent material. 4. Furniture provided with the auto-lock device according to claim 1 at an opening edge of a box body (3).