JP3041307B2 - Storage box with wing, auto lock device and dead bolt used for the storage box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage box with a wing, an automatic lock device and a dead bolt used for the storage box.

[0002]

2. Description of the Related Art For example, in a storage box with a wing typified by furniture such as a cupboard, a bookcase, a closet, a decorative case, etc., a door (wing) is pivoted in an open manner in an opening of a box body having an open front. Is being worn. 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 an earthquake of a great seismic intensity or the like, 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.

[0004]

The inventor of the present invention has disclosed a storage device with a wing which can prevent stored articles from jumping out by automatically locking the wing upon detecting a large swing generated in the box body. A patent application has already been filed for a box auto-lock device (Japanese Patent Application No. 7-18 / 1990)
1739, Japanese Patent Application No. 7-134376). Among such auto-locking devices, in which an auto-locking device is incorporated in a storage box to improve the appearance of the appearance (see Japanese Patent Application No. Hei 7-134376), a locking device main body attached to the box main body is provided. A bracket attached to the inner surface side of the wing, and the lock device main body is engaged with the bracket so as to prevent the wing from being opened only when excessive shaking occurs in the box main body. Equipped with a dead bolt that can move in and out.

However, when the dead bolt is provided so as to be able to move up and down along the lock device main body in the vertical direction, it is necessary to insert the bolt into the casing of the lock device main body with some play. Therefore, when the protruding end of the deadbolt is pulled in the opening direction of the wing by the bracket, it falls down slightly in the same direction, and even if the deadbolt is properly protruding to the locking position, the bracket comes out of the protruding end and the wing is protruded. May not lock properly. The present invention has been made in view of such circumstances,
An object of the present invention is to ensure that a locking portion of a bracket can be reliably caught by a deadbolt even if the deadbolt slightly falls in a direction in which a wing is opened, so that a locking portion of a bracket can be reliably captured.

[0006]

Means for Solving the Problems In order to solve the above technical problems, the present invention has taken the following technical means. That is, the present invention provides a deadbolt having a protruding end portion which is inserted into the lock device main body so as to be able to move back and forth along a vertical direction and is caught by a bracket to prevent opening of a wing.
In the auto-lock device and the storage box provided with the dead bolt, the protruding end of the dead bolt is provided with a concave portion for ensuring that the bracket is hooked to the hook.

According to the present invention, since the latching portion of the bracket enters the recess of the dead bolt and is latched by the bolt, the latching of the bracket even if the dead bolt slightly falls in the opening direction of the wing. The part can be reliably caught.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show an embodiment of the present invention. Among them, FIG. 7 shows a storage box 2 that employs the auto-lock device according to the present invention. The storage box 2 is used for a closet, a tableware case, a makeup case, and other furniture. Side plate 3A and top plate 8
A box body 3 assembled in a rectangular frame shape from a bottom plate 9 and a pair of right and left doors (wings) 5 that open and close the opening 4 at the front opening 4 of the box body 3 are provided.

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 of a so-called double-opening type which is rotatable inward and outward of the storage box 2. I have. A spring is incorporated in the hinge 6, and the spring biases the door 5 in the closing direction. The lock 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, is attached to the top plate 8 of the box body 3 in correspondence with the pair of left and right doors 5. Have been.

As shown in FIGS. 1 and 2, the lock device main body 1 includes a casing 15 made of a synthetic resin attached to a lower surface 8A of the front edge of the top plate 8 (the inner surface of the opening edge of the box main body 3). A dead bolt 16 inserted vertically into and out of the casing 15;
, A holding member 83 for holding the dead bolt 16 in the casing 15 in advance, and detecting and holding an excessive (about 2-3 seismic intensity) shaking caused by an earthquake or the like. And an automatic locking means 19 for releasing the member 83 from the dead bolt 16.

The casing 15 includes a fixed portion 20 having an open upper surface which is screwed to the lower surface 8A of the top plate 8, and a bottomed cylindrical guide tube portion 21 integrally formed at the front end of the fixed portion 20. And a lid member 77 for closing the upper opening of the fixing portion 20. As shown in FIG. 1, the casing 15 has a lower surface 8A via a spacer 81 projecting from the lid member 77 so that a front end of the casing 15 is separated from the lower surface 8A of the top plate 8 at an appropriate interval. It is screwed to. That is, the portion from the front end to the center of the lid member 77 is separated from the lower surface 8A of the top plate 8 in the mounted state shown in FIG. 1, thereby forming an insertion space 87 for the bracket 40 described later. Also, this lid member 77
The dead bolt 16 is vertically movably inserted into an insertion hole 79 provided at the front end of the dead bolt 16.

As shown in FIG. 3, the lid member 77 comprises a rectangular plate-shaped lid main body 80 for closing the upper opening of the fixing portion 20,
The guide 26 is fixed to the front end of the lid main body 80, and is fixed to the fixing portion 20 by a mounting screw (not shown) inserted through first screw holes 27 provided on both left and right sides of the lid main body 80. On both left and right sides of the lower surface of the lid main body 80, positioning pins 29 which are fitted into positioning holes 28 provided in the fixing portion 20 and perform positioning with respect to the fixing portion 20 are provided in a protruding manner. The guide portion 26 fits into a step portion 30 formed at the front portion of the fixing portion 20, and guides the front portion of the holding member 83 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 portion 26. By inserting the front portion of the plate-shaped holding member 83 into the guide groove 31, 83 is guided in the front-back direction.

Further, a second screw hole 32 is formed in the spacer portion 81 of the lid body 80 and the fixing portion 20 of the casing 15, 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 81 by screwing it toward the lower surface 8A. As shown in FIGS. 1 and 2, the dead bolt 16 has a length substantially equal to the inner space length of the guide tube portion 21, and has a bottomed spring storage hole 34 extending from the lower end to the center. First coil spring 17 housed in hole 34
And is inserted through the guide cylinder 21.

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. A pair of left and right stoppers 37 is protrudingly provided at the lower side of the dead bolt 16, and the stoppers 37 come into contact with a front end portion 26 </ b> A of the guide portion 26 (see FIG. 3B).
The dead bolt 16 is restricted from coming out upward.

On the other hand, on the inner surface 5A of the door 5, a bracket 40 which is locked by the dead bolt 16 protruding to the lock position and regulates the opening of the door 5 is fixed by a mounting screw 41. As shown in FIG. 1 and FIG.
Numeral 0 is bent and formed into an L-shape in side view from a mounting plate 42 and a locking plate 43 orthogonal to the mounting plate 42. At the tip of the locking plate 43 of the bracket 40 (the end on the side of the storage box 3), there is provided a hook 43A that hooks on the protruding end of the dead bolt 16 that has moved to the lock position (the state of FIG. 1). I have.

The bracket 40 is attached to the inner surface 5A of the door 5 by screwing the mounting plate 42 with the mounting screw 41 so that the locking plate 43 projects rearward from the inner surface 5A. The mounting position is
When the door 5 is closed, the locking plate 43 is located at the same plane position as the position where the dead bolt 16 is retracted, and at a height position where it enters the insertion space 87. For this reason,
When the dead bolt 16 is housed in the guide cylinder 21, the dead bolt 16 has been released from the bracket 40, and is in an unlock position allowing the door 5 to be opened. On the other hand, when the dead bolt 16 protrudes into the space 87 (the state shown in FIG. 1), the upper part of the dead bolt 16 enters the escape portion (engagement concave portion) 44 of the bracket 40 fixed to the door 5 and the door 5 The lock position is such that the opening of the lock is prevented.

A housing portion 45 is formed in the fixed portion 20 of the casing 15 so as to extend in the front-rear direction (the opening and 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 83 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 83 of the present embodiment is formed of a metal slide plate formed in a substantially rectangular plate shape, and is vertically oriented between the front and rear guide grooves 46 recessed at the center of the bottom surface of the storage portion 45. Is guided in the storage portion 45 so as to be movable in the front-rear direction. Further, the rolling member 19 is provided on the bottom surface of the storage portion 45.
A guide ridge 47 of A is provided in parallel with the groove 46.

The plate-shaped holding member 83 has a locking piece (a locking portion) 49 at a front end thereof which fits into a locking recess 48 formed on a side surface of the dead bolt 16. A connecting piece 51 for connecting the second coil spring 50 biased to the 16 side is provided at the rear end. In the center of the holding member 83, an escape recess 8 which is largely open upward is provided.
A notch 4 is formed, and a release piece 53 for sliding the holding member 83 rearward against the second coil spring 50 is formed at the rear upper end edge.

The upper edge of the retaining piece 49 of the holding member 86 is formed with a tapered portion inclined forward and downward so as to push the holding member 18 back as the dead bolt 16 moves downward. . On the other hand, as shown in FIG. 1, the second coil spring 50, which is attached by fitting the connecting piece 51 of the holding member 83 to the outside, comes into contact with the rear end wall of the storage part 45 and always attaches the holding member 83 forward. I'm going. The engaging piece 49 of the holding member 83 is forcibly fitted into the engaging concave portion 48 of the dead bolt 16 by the urging force of the coil spring 50, whereby the dead bolt 16 can be held in the unlock position in advance. .

The auto-locking means 19 of this embodiment is composed of a ball-shaped rolling member 19B, is housed in the housing portion 45 together with the plate-shaped holding member 83, and is inserted into the escape recess 84 of the holding member 83 in the front-rear direction. It is provided to roll freely.
Therefore, when the rolling member 19 </ b> B moves rearward with the shaking of the box body 3, the rolling member 19 </ b> B collides with the release piece 53 of the holding member 18 and releases the holding member 18 from the deadbolt 16. In addition, the rolling member 19 </ b> B causes the holding member 83 guided by the guide groove 46 in the storage part 45 to move the holding member 83 of the second coil spring 50 by shaking during an earthquake (for example, shaking with a seismic intensity of about 2 to 3). It is designed to generate enough inertial force (collision force) to push backward against the elastic force.

The material of the rolling member 19B is a metal which can be reliably rolled with high sensitivity due to shaking of seismic intensity of about 2 to 3 due to an earthquake or the like and which does not easily generate rust which can maintain the sensitivity for a long period of time. For example, it is preferable to use brass, but it may be one in which the outer periphery of a steel material is 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. Note that a roller-shaped rolling member may be employed as the auto-locking means 19.

The rolling member 19B reciprocates back and forth in the storage portion 45 by shaking the box body 3, but when the shaking is large due to an earthquake or the like, inertia due to the rolling is generated. The holding member 8 increases in force.
3 strongly hits the release piece 53. Due to this collision, the holding member 83 urged forward by the second coil spring 50 moves rearward (to the left in FIG. 1), and the hook piece 49 of the holding member 83 separates from the hook recess 48 of the deadbolt 16. Then, the dead bolt 16 is projected upward by the first coil spring 17 to be in the locked position.

As shown in FIG. 1, the locking plate 43 of the bracket 40 is provided with a relief portion 44 which is formed by bending a portion from a leading end portion to an intermediate portion upward. This escape part 4
4 is the dead bolt 16 when the door 5 is completely closed.
It is formed so as to be located slightly rearward (inside of the box main body 3), and at this time, the base bent portion of the escape portion 44 is located exactly on the rear side surface of the dead bolt 16. Therefore, the dead bolt 16 can protrude to the lock position when the door 5 is slightly opened and the escape portion 44 comes directly above the dead bolt 16, as shown in FIG. Then, the dead bolt 16 protruding from the escape portion 44 locks the locking portion 43A of the bracket 40 at the protruding end portion, and regulates the movement of the wing 5 in the opening direction.

Further, as shown in FIG. 1, the auto-lock device moves the door 5 further in the closing direction from the state where the dead bolt 16 is engaged with the bracket 40 (the state shown in FIG. 1). An unlock mechanism is provided for pushing the bolt 16 back to the unlock position. In the present embodiment, the door 5 is used as the lock release mechanism.
The first and second cams are formed in such a shape that a halfway portion of the bracket 40 moving in the closing direction in the same direction directly abuts on the protruding end of the dead bolt 16 to push the dead bolt 16 downward, which is the immersion side. A cam mechanism including the parts 61 and 62 is employed.

More specifically, the first cam portion 61
The locking plate 42 of the bracket 40 is formed so as to be inclined forward and downward at an intermediate portion thereof. In other words, the first cam portion 61 is formed at an intermediate portion of the bracket 40 in the opening and closing direction of the door 5 so as to be inclined toward the protruding side of the bolt 16 as approaching the dead bolt 16 side (the storage box 3 side). . On the other hand, the second cam portion 62 is formed by cutting the protruding end surface of the dead bolt 16 so as to be inclined forward and downward. In other words, the second cam portion 62 is formed at the protruding end of the dead bolt 16 and is formed so as to be inclined toward the immersion side of the dead bolt 16 toward the bracket 40 (outside the box 3). .

For this reason, when the door 5 is moved to the closed position from the state where the dead bolt 16 projecting to the lock position is engaged with the escape portion 44, the cam portions 61 and 62 press and contact each other to cause the dead bolt 16 to contact. It is designed to press to the unlock position. 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), the first cam of the bracket 40 is moved. 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 third cam portion 64 is provided at the distal end of the locking plate 43 of the bracket 40 at a substantially same angle as the first cam portion 61 and curved forward and downward. The third cam portion 64 can also be moved 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, so that the dead bolt 16 in the locked position is also provided. Can be pressed toward the unlock position. When the dead bolt 16 projects to the lock position B in a state where the door 5 is largely opened completely, the dead bolt 16 and the bracket 40 interfere with each other, and the door 5 Prevents from becoming unable to close.

That is, when the dead bolt 16 protrudes to the unlock position with the door 5 largely opened completely,
When the door 5 is closed and moved from this state, the second cam portion 62 and the third cam portion 64 are pressed against each other to press the deadbolt 16 toward the unlock position, whereby the bracket 4 is moved.
Because the tip of 0 can get over the deadbolt 16,
Even when the deadbolt 16 is in the locked position, the door 5 which is completely open can be easily closed, and the door 5 can be smoothly closed. According to the auto-lock device according to the above-described embodiment, when the dead bolt 16 is pressed down against the first coil spring 17, the locking piece 49 of the holding member 83 is engaged with the locking recess 4.
8 to hold the dead bolt 16 in the unlocked position. For this reason, the deadbolt 16 is always held at the unlocked position 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 rolling member 19B is moved to the holding member 8.
The holding by the hooking piece 49 is released by the impact force when it collides with the release piece 53 of No. 3. Therefore, the door 5 is slightly opened, and the escape portion 44 of the bracket 40 is
6, the dead bolt 16 automatically moves to the lock position, the protruding end of the dead bolt 16 is hooked on the hook 43 </ 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.

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 is The bolt 16 comes into contact with the two cam portion 62 and is pushed back to the unlock position.
A holding member 83 holds the deadbolt 16 in its unlocked position, thereby unlocking the lock. As described above, in the present embodiment, the lock by the dead bolt 16 can be released with one touch only by pushing the door 5 in the closing direction, so that the auto-lock device is locked by the slight vibration without the earthquake. In such a case, the lock can be released by 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 does not become inconvenient. Therefore, the sensitivity of the device for detecting the vibration can be extremely sharp. In addition,
In the above embodiment, when a strip-shaped mating member for closing the gap between the two doors 5 is fixed to the edge of one of the left and right doors 5, the other door 5 is not opened. Since one of the doors 5 cannot be opened, it suffices to provide the bracket 40 only on the other door 5 and one lock device body 1 on the box body 3 for automatically locking the bracket.

However, when the joining member is pivotally attached to one of the doors 5, brackets 40 are provided on both the left and right doors 5, and the box body 3 corresponding to these brackets 40 is provided. It is necessary to provide the lock device main body 1 at each position. Further, in the case of the storage box 2 having the one-sided door 5, the lock device main body 1 is connected to the box main body 3.
It can also be attached to the vertical side of the vehicle. In the present embodiment, the cam that presses the dead bolt 16 to the unlock position when the door 5 is closed and moved by the first cam portion 61 provided on the bracket 40 and the second cam portion 62 provided on the dead bolt 16. Although the mechanism is configured, the bracket 40 presses the dead bolt 16 in the lock position to the unlock position by the movement of the wing 5 in the closing direction only by the first cam portion 61 provided on the bracket 40. You may.

That is, the cam mechanism can be constituted not only by the first and second cam portions 61 and 62 but also by the first cam portion 61. In the present embodiment, the automatic locking means 19 for detecting the swing and releasing the holding member 18 from the dead bolt 16 is replaced with a ball-shaped rolling member 19B.
However, instead of this, the auto-locking means 19 may be constituted by a weight member that slides on the holding member 83 (for example, see Japanese Patent Application No. 7-134376). Further, in the present embodiment, the storage box 2 is configured to urge the door 5 in the closing direction by a spring incorporated in the hinge 6, but instead of this, the storage box 2
May be such that the door 5 is sucked and held at the closed position by a magnet, or a storage box having no mechanism for holding the door 5 at the closed position.

In the present embodiment, as the first cam portion 61 formed on the bracket 40 side, a spring member 71 attached to the bracket 40 and elastically deformed in the direction in which the dead bolt 16 is retracted (vertical direction in the illustrated example) is employed. doing. FIG.
As shown in FIG. 4 and FIG. 4, the spring member 71 includes a fixed plate portion 72 fixed to the inner surface of the mounting plate 42 of the bracket 40.
And a contact spring 73 extending rearward from the upper edge of the fixed plate 72. The spring member 71 may employ not only a leaf spring but also a rod-shaped spring.

The contact plate 73 has a substantially C-shape when viewed from the side by bending an intermediate portion thereof downward, and a dead end is formed by forming a portion from the bent portion to the front end to be inclined forward and downward. A contact portion 74 (first cam portion 61) for contacting the projecting end of the bolt 16 is provided. The contact portion 74 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. In addition, as shown in FIGS. 1 and 4, in the widthwise central portion of the locking plate 43 of the bracket 40, a contact plate 73 elastically deformed upward to avoid interference with the locking plate 43. An escape slot 75 is provided.

In the present embodiment, the dead bolt 16
Is provided with a concave portion 76 for ensuring that the bracket 40 is hooked to the hooking portion 43A. As shown in FIGS. 1 and 2, the recess 76 is formed by carving the rear surface of the protruding end of the bracket 16 shallowly over a certain range in the vertical direction. The stopping portion 43A is
6 is hooked on the protruding end of the dead bolt 16 (see FIG. 1). Furthermore, in this embodiment, the front-back direction (opening / closing direction of the door 5) is provided on the upper surface of the lid member 77.
And a pair of left and right guide ribs 78 are provided.

As shown in FIGS. 2 and 3, the guide rib 78 is provided upright at a position sandwiching the insertion hole 79 of the dead bolt 16 from the left and right. It extends in the front-rear direction over the range. The projecting height of the guide rib 78 is set to be equal to or larger than the upper end edge of the dead bolt 16 held at the unlock position. In addition, as shown in FIGS. 1 and 2, in the present embodiment, at the bottom of the escape recess 84 of the holding member 83, the escape recess 84 is inclined in such a direction that the escape recess 84 becomes deeper toward the rear (toward the dead bolt 16 side). An inclined edge 85 is formed so that the rolling member 19B is always located near the release piece 86.

Therefore, the rolling member 19B can be caused to collide with the release piece 86 of the holding member 83 by slightly rolling the rolling member 19B, and the sensitivity of the auto-lock device to shaking can be improved. In the present embodiment,
Since the vertical contact range of the dead bolt 16 with the bracket 40 is increased by attaching the spring member 71 to the bracket 40, the vertical length of the spacer portion 81 of the lid member 77 is made relatively large, and the spring member 71 is also inserted into the insertion space 87. So that it can be inserted.

Further, as shown in FIG.
Is integrally formed with a cover member 88 having a rounded shape at its front end to form a square with four rounded corners in plan view. Next, FIGS. 5 and 6
The operation of the automatic lock device according to the present embodiment will be described with reference to FIG. First, as shown in FIG. 5A, when the dead bolt 16 is held at the unlock position,
Both the locking plate 43 and the spring member 71 of the bracket 40 can freely move through the insertion space 87 on the locking device body 1 side, and in this case, the door 5 can be freely opened and closed.

On the other hand, as shown in FIG. 5 (b), when the shaking of the box body 3 is larger than the assumed seismic intensity, the impact force generated when the box body 3 collides with the release piece 53 of the holding member 18 of the rolling member 19B is applied. The holding by the hook piece 49 is released. For this reason, 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, and the projecting end of the dead bolt 16 Hook 43 of bracket 40
As a result, the door 5 is prevented from opening. At this time,
In the present embodiment, since the engaging portion 43A of the bracket 40 is engaged with the recessed portion 76 of the dead bolt 16 in a state of being inserted into the concave portion 76, the dead bolt 16 of the door 5 Even if it falls slightly in the opening direction, it is possible to prevent the hooking portion 43A of the bracket 40 from coming out in the opening direction of the door 5 beforehand.

Then, the dead bolt 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 71) abuts on the second cam portion 62 at the upper end of the dead bolt 16 to push the bolt 16 back to the unlock position, and thereafter, the holding member 83 holds the dead bolt 16 in the unlock position, thereby Deadbolt 16
Is released. In this case, in the present embodiment, since the spring member 71 which is elastically deformable in the vertical direction is employed as the first cam portion 61, FIGS. 5B and 6A.
As shown in FIG.
Even if the mounting height of the bracket 40 slightly changes due to the mounting error or the like, the first cam portion 61 surely comes into contact with the protruding end portion (second cam portion 62) of the dead bolt 16,
For this reason, the lock release mechanism including the cam mechanism can be operated more reliably.

As shown in FIG. 5C, even when 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, 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. Furthermore, in this embodiment, since the guide rib 78 protrudes by the same amount or larger than the upper end edge of the dead bolt 16 at the unlock position, even if the door 5 is gradually lowered due to the deterioration of the hinge 6 or the like, The hook 43A of the bracket 40 abuts the guide rib 78 and is not hooked on the dead bolt 16 at the unlock position.

For this reason, it is possible to prevent the door 5 from being locked by the dead bolt 16 at the unlock position. Note that the above-described embodiments are 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.

[0044]

As described above, according to the present invention,
Even if the deadbolt slightly falls in the opening direction of the wing, the catch of the bracket can be reliably caught,
The lock at the time of the earthquake by a deadbolt can be ensured.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an attached and locked state of an automatic lock device of the present invention.

FIG. 2 is an exploded perspective view of a lock device main body.

3A is a plan view of the lid member, FIG. 3B is a side view of the lid member, FIG. 3C is a front view of the lid member, and FIG. 3D is a bottom view of the lid member.

4A is a plan view of the bracket, FIG. 4B is a side view of the bracket, and FIG. 4C is a bottom view of the bracket.

5A and 5B are explanatory diagrams of the operation of the auto lock device, and FIG.
FIG. 5B is a view showing a state where the deadbolt is in the unlock position, FIG. 6B is a view showing a state where the deadbolt is in the lock position, and FIG. FIG.

FIG. 6A is a diagram illustrating a state in which the mounting position of the bracket has changed upward, and FIG. 6B is a diagram illustrating a state in which the mounting position of the bracket has changed downward.

FIG. 7 is a perspective view of a storage box to which the automatic lock device of the present invention is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lock device main body 2 Storage box 3 Box main body 4 Front opening 5 Wing (door) 5A Inner surface 16 Deadbolt 40 Bracket 43A Hook part 76 Depressed part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05C 21/02 E05B 65/44 E05C 19/02 E05C 19/06

Claims (3)

(57) [Claims] 1. A locking device body (1) having an auto-lock function at the time of earthquake installed in a box body (3).
A bracket (40) attached to an inner surface (5A) of a wing (5) pivotally attached to a front opening (4) of the box body (3); and a lock device body (1) extending vertically. And a deadbolt (16) having a protruding end portion which is inserted so as to be retractable and retractable and is hooked on the bracket (40) to prevent opening of the wing (5). A wing is provided at a protruding end of the dead bolt (16) so as to ensure that the bracket (40) is hooked to the hook (43A). Automatic locking device for storage box. 2. A box body (3) and said body (3)
A wing (5) pivotally attached to a front opening (4) of the wing, a locking device body (1) having an auto-lock function at the time of an earthquake mounted in the box body (3), and a wing (5). A bracket (40) attached to the inner surface (5A) is inserted into the lock device body (1) so as to be able to move up and down along the vertical direction, and is hooked on the bracket (40) to open the wing (5). A deadbolt (16) having a protruding end for blocking the wing, wherein the protruding end of the deadbolt (16) is hooked to a hook (43A) of the bracket (40). A storage box with wings, characterized by being provided with a recess (76) for ensuring. 3. A lock device main body (1) in a box main body (3) is inserted through the lock device main body (1) so as to be able to move up and down along a vertical direction.
A deadbolt used in an auto-locking device for a storage box with a wing having a protruding end portion which is hooked on a bracket (40) provided on the inner surface (5A) of the wing (5) to prevent the wing (5) from being opened. The hook (4) of the bracket (40) is attached to the protruding end.
3A) A deadbolt for use in an automatic locking device for a storage box with a wing, which is provided with a recessed portion (76) for ensuring engagement with the wing.