JP2006052532A - Device for locking during earthquake - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for locking during earthquakes, which can be easily and inexpensively manufactured, which can be mounted in a narrow space by virtue of its compact size, and which has a nonconventional new structure. <P>SOLUTION: This device 1 for locking during the earthquakes, which is provided in storage equipment A with a hinged door, regulates the opening of the hinged door E during the earthquakes. The device for locking during the earthquakes comprises a case 2 which is mounted in a storage equipment body B, a locking means 30 which is rotatably provided in the case 2, and a rolling element 2 which is rollably provided on the locking means 30. A lower part on one side 30a of the locking means 30 has a locking claw 32; the locking claw 32 can be turned to a locking position X2 from a position X1 to be locked; and the locking claw 32 can be locked to a means 50 to be locked of the hinged door E in the locking position X2 during the earthquakes. In the cases except the earthquakes, the rolling element 20 is positioned on the other side 30b of the locking means 30, so as to hold the locking claw 32 in the position X1. During the earthquakes, the rolling element 20 is moved to one side 30a of the locking means 30, so as to turn the locking claw 32 to the locking position X2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an earthquake locking device that is provided in a storage device with a hinged door such as furniture and a hanging cabinet and regulates the opening of the hinged door during an earthquake.

Conventionally, in storage devices with hinged doors such as furniture and hanging cabinets, the hinged doors open due to the shaking of the earthquake, and the stored items such as dishes and cups fall. A seismic locking device is provided to regulate the earthquake. This conventional earthquake locking device is attached to the storage device main body side of a storage device with a hinged door such as furniture and a hanging cupboard. In addition, to the hinged door provided in the storage device main body so as to be openable and closable, a locked means to be locked by the locking device at the time of earthquake is attached. In the case of a conventional earthquake locking device, the locking body protrudes from the case at normal times, and when the hinged door opens and closes and the locked means comes into contact with the locking body, the locking body moves up and down. There is no restriction on the opening of However, in the earthquake locking device, since the sphere is placed on the flange of the locking means at the time of the earthquake, the upward movement of the locking body is prevented, and the locking body locks the locked means of the hinged door. The opening of the hinged door is restricted to prevent the stored items in the storage device body from dropping (for example, Patent Document 1).
Japanese Patent No. 3048357

  In the above-described conventional earthquake locking device, the locking body protrudes from the case and comes into contact with the locking means of the hinged door even in normal times, so the locking body does not move up for some reason. In this case, there is a possibility that the locking body locks the locking means of the hinged door and restricts the opening and closing of the hinged door. In addition, in the case of an earthquake lock device, the sphere is placed on the buttocks of the locking means and the upward movement of the locking body is prevented in the event of an earthquake. Even if it came off from the buttocks and the time of the earthquake, there was a possibility that the locking body released the locking of the hinged door to the locked means and opened the hinged door.

  The invention of the present application has been devised in view of the above problems, and since the locking claw is in the non-locking position in normal times, the locking means of the hinged door is not locked, and at the time of an earthquake The rolling element moves to the side of the locking claw, the locking claw protrudes to the locking position to lock the locking means of the hinged door, and the rolling element prevents the upward movement of the locking claw. It is an object of the present invention to provide an earthquake locking device having an unprecedented new structure capable of reliably regulating opening, having a simple structure and being manufactured inexpensively, and being compact and capable of being installed in a narrow space. 1 purpose. In addition, even if the rolling element moves in the direction of the anti-claw and the rolling element does not prevent the movement of the locking claw, the locking means can be held during an earthquake so that the engaging means can maintain the locking state of the locking claw. A second object is to provide an apparatus.

In order to achieve the first object, the earthquake lock device according to claim 1 of the present invention is an earthquake lock device that is provided in a storage device with a hinged door such as furniture and a hanging cabinet and regulates the opening of the hinged door during an earthquake. A case attached to the storage device main body, a locking means provided rotatably on the case, and a rolling element provided rotatably on the locking means. There is a locking claw at one lower part, and the locking claw can be rotated from the non-locking position to the locking position, and the locking claw can be locked to the locking means of the hinged door at the locking position. In addition, a guide path for guiding the rolling element from one side to the other side by its own weight is formed, and the rolling element is positioned on the other side of the locking means by the guide path in the non-earthquake and is locked by the weight of the rolling element. Hold the nail in the non-locking position and move the locking means along the guideway during an earthquake It is configured to rotate the locking pawl in the latched position by the weight of the mobile to the rolling elements towards.

  In the earthquake locking device according to claim 2 of the present application, in order to achieve the first object, the guide path is formed from one side to the other side across the rotation center of the locking means.

  In the earthquake locking device according to claim 3 of the present application, in order to achieve the first object, the guide path is formed at an upper portion of the locking means, and the rolling element can roll in the longitudinal direction of the locking means. It has a pair of guide walls provided on both sides in the short side direction for guiding, and an abutting wall provided on the other side in the longitudinal direction where the rolling elements abut.

  In the earthquake locking device according to claim 4 of the present application, in order to achieve the first object, a curved contact surface for guiding the rolling element to one side is formed on the contact wall.

  In the earthquake locking device according to claim 5 of the present application, in order to achieve the first object, a locking protrusion protruding in the closing direction of the hinged door is formed at the tip of the locking claw.

  In the earthquake locking device according to claim 6 of the present application, in order to achieve the second object, the case has a locking claw that moves to one of the locking means along the guide path at the time of the earthquake and is moved by the weight of the rolling element. Engagement means is provided that engages with the latching means and holds the latched state when the is rotated to the latching position.

  In the earthquake locking device according to the seventh aspect of the present invention, in order to achieve the second object, the engaging means includes an engaging member that engages one side of the locking means, and a locking means for the engaging member. The release member for releasing the engagement is provided in the case so as to be rotatable in a state in which the engagement member is biased in the direction of engagement by its own weight or an elastic member.

  The earthquake locking device according to the present invention is provided in a storage device with a hinged door such as furniture and a hanging cupboard, and when non-earthquake, the rolling element is positioned on the other side of the locking means by the guide path and locked by the weight of the rolling element. The claw is held at the non-locking position, and in the event of an earthquake, the rolling element moves to one of the locking means along the guide path, and the locking claw is rotated to the locking position by the weight of the rolling element, and the locking claw Is locked by the locking means of the hinged door to restrict the opening of the hinged door. When the earthquake ends, the rolling element moves to the other side of the locking means by the guide path, the locking claw is rotated to the non-locking position by the weight of the rolling element, and the locking claw is removed from the locked means of the hinged door. Enables opening and closing of hinged doors. In the earthquake locking device according to the present invention, since the locking claw is in the non-locking position in normal times, the locking means of the hinged door is not locked, and the rolling element is engaged during the earthquake. Move to the pawl side and project the latching pawl to the latching position to lock the means to be locked of the hinged door, and the rolling element prevents the upward movement of the latching pawl and reliably regulates the opening of the hinged door There is an effect that can be done. Also, the earthquake locking device is released at the end of the earthquake because the rolling element automatically moves to the other of the locking means along the guide path and rotates the locking claw to the unlocked position. The effect is that no operation is required. In addition, the earthquake locking device is simple in structure and can be manufactured at low cost, and can provide a novel structure that is compact and can be easily installed in a narrow space such as a drawer. There is.

In the earthquake locking device according to the present invention, since the guide path is formed from one side to the other side across the rotation center of the locking means, the weight of the rolling element located on the other side during a non-earthquake One of them is positioned upward, and the locking claw provided on one side of the locking means is held in the non-locking position. In the earthquake locking device, since the rolling element moves to one of the locking means during an earthquake, one of the rolling elements moves down due to the weight of the rolling element, and the locking claw provided on one of the locking means moves to the locking position. The locking claw locks the hinged means of the hinged door and restricts the opening of the hinged door. When the earthquake ends, the rolling element moves to the other of the locking means by the guide path, the locking claw is moved up to the non-locking position by the weight of the rolling element, and the locking claw is removed from the locked means of the hinged door. Enables opening and closing of hinged doors. The earthquake locking device according to the present invention has an effect that both sides of the locking means move up and down across the rotation center due to the movement of the rolling element due to the earthquake, and can react sensitively to the shaking of the earthquake.

  The earthquake locking device according to the present invention is a pair of guides provided on both sides in the short direction, in which a guide path is formed at the upper part of the locking means and guides the rolling element so as to roll in the longitudinal direction of the locking means. Since it has a wall and the contact wall provided in the other side of the longitudinal direction which a rolling element contact | abuts, it can mount | wear by only putting a rolling element on a latching means, and there exists an effect that an assembly is easy. .

  In the earthquake locking device according to the present invention, a curved contact surface for guiding the rolling element to one side is formed on the contact wall with which the rolling element contacts, so that only the longitudinal swing of the locking means is generated. In addition, there is an effect that it is possible to cope with the shaking of the locking means in the short direction.

  Since the locking device at the time of earthquake which concerns on this invention has the latching protrusion which protrudes in the direction which closes a hinged door at the front-end | tip of a latching claw, the latching protrusion is provided in the to-be-latched means provided in the hinged door. There is an effect that it is difficult to be caught and detached from the locked means.

  In the earthquake locking device according to the present invention, at the time of an earthquake, the rolling element moves to one of the locking means along the guide path, and the locking claw is rotated to the locking position by the weight of the rolling element. Is locked to the locking means of the hinged door to restrict the opening of the hinged door, while the engaging means engages with the locking means and maintains the locked state. It moves to the other of the stopping means, and even if it tries to rotate the locking claw to the non-locking position due to the weight of the rolling element, the locking claw is held in the locking position and the hinged door is locked. State is maintained. As described above, the earthquake locking device according to the present invention is such that when the locking claw rotates to the locking position, the locked state is held by the engaging means, and even if the rolling element moves to the other due to the shaking of the earthquake, Since the lock is not released, there is an effect that the hinged door can be surely locked during the earthquake.

  In the earthquake locking device according to the present invention, the engaging means includes an engaging member that engages one side of the locking means and a release member that releases the engagement of the engaging member with respect to the locking means. The joint member is rotatably provided in the case in a state in which the joint member is biased in the direction of engagement by its own weight or an elastic member, and the engagement member engages with the locking means to hold the locking claw. If the release member is operated in the state of being engaged, there is an effect that the engagement of the engagement member with the locking means can be easily released.

  One embodiment of the earthquake locking device according to the present invention will be described with reference to FIGS. FIG. 1 is a side sectional view of the locking device at the time of earthquake in a normal state. FIG. 2 is a side cross-sectional view of the locking device at the time of earthquake at the time of locking. FIG. 3 is an explanatory view for explaining an attachment state of the earthquake locking device. 4A and 4B are explanatory views of the main part of the earthquake locking device, wherein FIG. 4A is a top view with the lid member and the locking means removed, FIG. 4B is a top view with the lid member removed, and FIG. (D) is a side view, (e) is a bottom view, (f) is a front sectional view, and (g) is a front view. FIG. 5 is an explanatory view of the locking means of the earthquake locking device, wherein (a) is a top view, (b) a side view, (c) is a bottom view, (d) is a back view, and (e) is a back view. It is a front view. FIG. 6 is a side sectional view for explaining the operation of the earthquake locking device. FIG. 7 is a side sectional view for explaining the release operation of the earthquake locking device. FIG. 8 is an explanatory view for explaining the operation of the rolling elements on the locking means. 9A and 9B are explanatory views of the locked means, wherein FIG. 9A is a top view, FIG. 9B is a side view, FIG. 9C is a front view, and FIG. FIGS. 10A and 10B are explanatory views of another type of locked means, wherein FIG. 10A is a top view, FIG. 10B is a side view, FIG. 10C is a front view, FIG. FIG.

  The earthquake lock device 1 is provided in a storage device A with a hinged door such as furniture and a hanging cupboard, and regulates the opening of the hinged door E at the time of an earthquake, and includes a case 2 attached to the storage device main body B, and the case 2 The locking means 30 is provided so as to be rotatable, and the rolling element 20 is provided so as to be able to roll on the locking means 30. The locking means 30 has a locking claw 32 at the lower part of one side 30a, the locking claw 32 can be rotated from the non-locking position X1 to the locking position X2, and the locking claw 32 is locked. It can be locked to the locked means 50 of the hinged door E at the position X2.

  Further, the locking means 30 is formed with a guide path 40 that guides the rolling element 20 from the one 30a side to the other 30b side by its own weight. The rolling element 20 is positioned on the other 30b of the locking means 30 by the guide path 40 during a non-earthquake, holds the locking claw 32 at the non-locking position X1 by the weight of the rolling element 20, and moves to the guide path 40 during an earthquake. It moves to one side 30a of the latching means 30, and it is comprised so that the latching claw 32 may be rotated to the latching position X2 with the weight of the rolling element 20. FIG.

  The guide path 40 is formed from one 30a side to the other 30b side across the rotation center of the locking means 30. The guide path 40 is formed at the upper part of the locking means 30 and guides the rolling element 20 so as to be able to roll in the longitudinal direction of the locking means 30. A pair of guide walls 37, 39 provided on both sides in the short direction. And a contact wall 43 provided on the other 30b side in the longitudinal direction with which the rolling element 20 contacts. The contact wall 43 is formed with a curved contact surface 45 that guides the rolling element 20 toward the one side 30a. A locking projection 36 is formed at the tip of the locking claw 32 so as to protrude in the closing direction P of the hinged door E.

  Furthermore, the earthquake locking device 1 will be described in detail. As shown in FIGS. 1 and 2, the earthquake locking device 1 has a case 2 attached to a base frame (storage device body) B. As shown in FIG. 4, the case 2 is formed in a box shape, and is formed by a case main body 3 and a lid member 5. The case body 3 includes a bottom wall 6, a rear wall 7, a front wall 9, a right wall 10, and a left wall 11, and is formed with an upper portion opened. Bearing protrusions 12 and 13 having bearing grooves 12a and 13a are formed on the inner side surfaces 10a and 11a of the right wall 10 and the left wall 11 on the rear side of the approximate center. The bearing groove 12a and the bearing groove 13a are arranged to face each other.

  A substantially rectangular opening 15 is formed in front of the center of the bottom wall 6. A contact protrusion 16 is formed on the inner surface 6 a of the bottom wall 6 slightly behind the opening 15. On the inside of the upper edge of the rear wall 7, the inside of the upper edge of the front wall 9, the inside of the upper edge of the right wall 10, and the inside of the upper edge of the left wall 11, the step recesses 7 b and 9 b that fit the lid member 5 are fitted. , 10b, 11b are formed. The lid member 5 is fitted into the stepped recesses 7b, 9b, 10b, 11b of the rear wall 7, the front wall 9, the right wall 10, and the left wall 11, and is fixed to the case body 3 by fixing means such as screws and adhesives. ing. On the inner surface 5a of the lid member 5, a contact protrusion 5b is formed at the front center. A first projecting piece 25 is formed at the left end of the outer surface of the rear wall 7, and a through hole 26 is formed in the first projecting piece 25. A second protruding piece 27 is formed at the left end of the outer surface of the bottom wall 6, and a long hole 28 that extends long in the front-rear direction is formed in the second protruding piece 27.

  Locking means 30 is rotatably provided in the case 2. As shown in FIG. 5, the locking means 30 has a locking body 31 formed in an elongated plate shape. The locking body 31 is formed with a locking claw 32 protruding downward on the lower surface 31a of one longitudinal side 30a. A locking surface 33 curved in a concave shape is formed at the rear portion of the locking claw 32 (opposite the hinged door E). A guide surface 35 that is curved in a convex shape is formed on the front portion of the locking claw 32 (the opening door E side). At the lower end of the locking claw 32, that is, at the lower end of the locking surface 33, a locking protrusion 36 that protrudes rearward (in the closing direction P of the hinged door E) is formed.

As shown in FIG. 5, a left guide wall 37 and a right guide wall 39 are provided substantially in parallel on both sides of the upper surface 31 b of the locking body 31 in the short direction (direction substantially perpendicular to the opening / closing direction of the hinged door E). Yes. A guide path 40 that guides the rolling element (sphere) 20 is formed by the upper surface 31 b of the locking body 31, the left guide wall 37, and the right guide wall 39. The front portions of the left guide wall 37 and the right guide wall 39 are bent inward to form stopper walls 37a and 39a.

  A contact wall 43 is provided on the other 30 b side of the upper surface 31 b of the locking body 31. The rear ends of the left guide wall 37 and the right guide wall 39 are connected to the contact wall 43. The contact wall 43 is formed with a concavely curved contact surface 45 with which the rolling element (sphere) 20 contacts. The contact surface 45 has a left end 45 a connected to the inner side surface 37 b of the left guide wall 37, a right end 45 b connected to the inner side surface 39 b of the right guide wall 39, and a lower end 45 c connected to the upper surface 31 b of the locking body 31. Yes. In addition, a stopper piece 47 is provided at the substantially upper center of the abutting wall 43 to prevent the rolling element (sphere) 20 from jumping out from the abutting wall 43.

  A left support shaft 41 is formed on the left rear side of the locking body 31. A right support shaft 42 is formed on the right rear side of the locking body 31 so as to face the left support shaft 41. The locking means 30 is configured such that a left support shaft 41 formed on the left side of the lock body 31 is rotatably inserted into the left bearing groove 13 a of the case body 3, and a right support shaft formed on the right side of the lock body 31. 42 is rotatably inserted into the right bearing groove 12 a of the case body 3 and is accommodated in the case 2. A rolling element (sphere) 20 is placed on the upper surface 31b of the locking body 31 so as to be able to roll. The rolling element (sphere) 20 can be rolled in the longitudinal direction of the guide path 40 by the left guide wall 37 and the right guide wall 39, and abuts against the stopper walls 37a and 39a when rolling forward (one 30a), When it rolls backward (the other 30b), it contacts the contact wall 43. As shown in FIG. 8, the left guide wall 37 and the right guide wall 39 are formed low and guide the lower part of the rolling element (sphere) 20, so the rolling element (sphere) 20 is slightly but short ( It can also be moved in the direction H substantially perpendicular to the opening / closing direction of the hinged door E).

  As shown in FIG. 9, the locked means 50 is integrally formed of elastic synthetic resin, and is formed with a mounting plate 52 and a lower end of the mounting plate 52 so as to be substantially perpendicular to the mounting plate 52. It consists of a stop frame 55. The attachment plate 52 is formed with attachment long holes 53 and 54 extending in the vertical direction. The locking frame 55 is formed in a substantially U-shape and includes a right guide arm 56, a left guide arm 57, and a locking arm 58 that connects the right guide arm 56 and the tip of the left guide arm 57. A locking recess 58b is formed in the lower portion of the inner side surface 58a of the locking arm 58. Although the outer surface of the locking arm 58 has a semicircular cross section, the outer surface of the locking arm 59 may be tapered as shown in FIG.

  As shown in FIGS. 1 to 3, the earthquake locking device 1 is attached to a storage device A with a hinged door such as furniture, a hanging cabinet, a desk or the like. The furniture is a basket, a cupboard, and the like. The storage device A with a hinged door includes a base frame (storage device main body) B and a hinged door E provided on the base frame (storage device main body) B so as to be opened and closed. The earthquake locking device 1 is fixed to the side wall D in the vicinity of the upper wall C of the base frame (storage device main body) B with screws, an adhesive or the like so that the case 2 is substantially horizontal. Of course, the mounting position of the earthquake locking device 1 is not limited to the side wall D, but may be the upper wall C or another wall. In the present embodiment, screws 29, 29 are inserted into the through holes 26 formed in the first projecting piece 25 of the case 2 and the long holes 28 formed in the second projecting piece 27, By locking 29 into the side wall D, the earthquake locking device 1 is fixed to the side wall D. Thus, the earthquake locking device 1 can be easily attached with screws or the like, and there is no need to perform any processing for attaching to the base frame B.

The locked means 50 is attached to the hinged door E. In the present embodiment, the hinged door E corresponds to the front plate of the drawer F provided so as to be able to be pulled out from the base frame (storage device main body) B, but rotates to the base frame (storage device main body) B via a hinge. The door may be freely attached. The locked means 50 is fixed to the hinged door E by inserting screws into the attachment long holes 53 and 54 formed in the attachment plate 52 and screwing the screws into the hinged door E. When the locked means 50 is fixed to the hinged door E, the locking frame 55 becomes substantially horizontal. In this way, the locked means 50 can be easily attached with screws or the like, and there is no need to perform any processing for attaching to the hinged door E.

  In normal times (non-earthquake), as shown in FIGS. 1 and 6 (a), the earthquake locking device 1 has the rolling elements (spheres) 20 located behind the support shafts 41 and 42, and the contact walls. 43 is in contact with the contact surface 45 of the roller 43, so that the front (one side 30a) is positioned upward due to the weight of the rolling element (spherical body) 20, and the locking claw 32 is in a state of being immersed in the case 2. It is held at the locking position X1. The abutment wall 43 functions as a balancer, increases the sensitivity of earthquake detection, and speeds up the rotation of the locking means 30. In this state, even if the hinged door E is pulled out (opened) or pushed in (closed), the locking claw 32 is positioned at the non-locking position X1, so that the locked means 50 is There is no contact with the locking claw 32 of the locking device 1 and there is no influence from the locking device 1 during an earthquake.

  As shown in FIG. 2, when an earthquake occurs when the hinged door E is pushed in (closed), the rolling element (sphere) 20 detects the shaking of the earthquake and follows the guide path 40. It moves to one side 30a of the locking means 30 (the opening direction Q of the front hinged door E). When the rolling element (spherical body) 20 moves to one side 30a, the locking means 30 has a locking direction (clockwise direction) of the locking claw 32 around the support shafts 41 and 42 by the weight of the rolling element (spherical body) 20. ). When the locking means 30 is rotated in the locking direction (clockwise), the locking claw 32 protrudes from the opening 15 of the bottom wall 6 and moves to the locking position X2, and within the locking frame 55 of the locked means 50. Entering, the hinged door E is locked and the opening of the hinged door E is prevented. At this time, the locking means 30 contacts the contact protrusion 16 of the bottom wall 6, and the upper surface 31 b is inclined downward toward the other 30 b side of the locking means 30. The rolling element (sphere) 20 moves to one side 30 a of the locking means 30 until it comes into contact with the stopper wall 37 a of the left guide wall 37 and the stopper wall 39 a of the right guide wall 39. Moreover, since the rolling element (sphere) 20 also abuts against the abutment protrusion 5b of the lid member 5, it is prevented from getting over the stopper walls 37a and 39a.

  As shown in FIG. 6 (c), when the swing in the Q direction occurs due to the earthquake, the hinged door E moves forward (direction Q in which the hinged door E opens), and is latched to the latching surface 33 of the latching claw 32. Since the inner side surface 58a of the frame 55 is locked, the opening of the hinged door E is restricted and will not open any further. Further, when the inner side surface 58 a of the locking frame 55 is locked to the locking surface 33 of the locking claw 32, the locking projection 36 formed on the lower end of the locking claw 32 becomes the inner side surface of the locking frame 55. Since it is latched by the latching recessed part 58b formed in the lower part of 58a, the latching means 30 can rotate in the anti-locking direction (counterclockwise direction) of the latching claw 32, and can cancel | release locking. Can not.

  As shown in FIG. 6 (c), when the vibration in the Q direction occurs due to the earthquake, the rolling element (sphere) 20 moves along the guide path 40 and the other 30 b of the locking means 30 (the closing direction P of the rear hinged door E). ), The locking means 30 tries to rotate in the counter-locking direction (counterclockwise) of the locking claw 32 due to the weight of the rolling element (sphere) 20. Moves in the opening direction Q, the inner surface 58a of the locking frame 55 is locked to the locking surface 33 of the locking claw 32, and the locking recess of the locking frame 55 is locked to the locking protrusion 36 of the locking claw 32. Since 58b is locked, the locking means 30 cannot be unlocked by rotating in the counter-locking direction (counterclockwise).

As shown in FIG. 6 (b), when a P-direction swing occurs due to an earthquake, the rolling element (sphere) 20 moves along the guide path 40 and one of the locking means 30 30 a (the direction Q in which the front hinged door E opens) ), The locking claw 32 is held at the locking position X2 by the weight of the rolling element (sphere) 20, the hinged door E is locked, and the opening of the hinged door E is prevented. In addition, since the distance from the rotation center (the left support shaft 41 and the right support shaft 42) of the locking means 30 to the stopper walls 37a and 39a is set long, the rolling element (sphere) 20 in the front-rear direction due to the earthquake is set. The movement is mainly performed from the center of rotation (left support shaft 41 and right support shaft 42) to the stopper walls 37a and 39a, and the locking claw 32 is securely held at the locking position X2. Further, even if the locking means 30 tries to rotate in the counter-locking direction (counterclockwise) due to some impact, the rolling element (sphere) 20 comes into contact with the inner surface 5a of the lid member 5, so that the locking means 30 Is prevented from rotating in the counter-locking direction (counterclockwise direction).

  As described above, when the hinged door E moves backward (in the closing direction P of the hinged door E) due to an earthquake, the hinged door E comes into contact with the upper wall C of the base frame (storage device main body) B, but the engagement means 30 is engaged. The pawl 32 remains in the locking frame 55 of the locked means 50 (still positioned at the locking position X2). Thus, when the earthquake occurs when the hinged door E is pushed in (closed), the locking claw 32 of the locking means 30 locks the locked means 50 of the locking means 1. Entering the frame 55, the hinged door E is locked, and the opening of the hinged door E is restricted.

  When the hinged door E is closed and the locking claw 32 is held at the locking position X2 when the hinged door E is opened and the locking claw 32 is held at the locking position X2, the locking device 1 at the time of earthquake is locked. When the locking arm 58 comes into contact with the guide surface 35 of the locking claw 32 and the locking frame 55 is bent downward due to the elasticity of the material and the locking arm 58 gets over the locking claw 32, the original state is restored. Thus, the locking claw 32 can be positioned in the locking frame 55. Thus, the earthquake locking device 1 closes the hinged door E when the earthquake occurs when the hinged door E is open, and engages the latching claw 32 of the latching means 30 with the latched means 50. It can put in the stop frame 55, lock the hinged door E, and can control the opening of the hinged door E.

  Next, a method of releasing the earthquake locking device 1 will be described. As described above, in the earthquake locking device 1, since the guide path 40 formed in the locking means 30 is inclined downward toward the other 30 b side, the rolling element (sphere) 20 is guided to the guide path at the end of the earthquake. It rolls along the other side 30 b of the locking means 30 along 40 and comes into contact with the contact wall 43. When the rolling element (sphere) 20 exceeds the rotation center (the left support shaft 41 and the right support shaft 42), the locking means 30 is counterclockwise, that is, the locking claw 32 is moved by the weight of the rolling element (sphere) 20. When the locking claw 32 is immersed in the case 2 through the opening 15 and the rolling element (spherical body) 20 comes into contact with the contact wall 43 and stops, the locking claw 32 is moved to the original non-locking direction. It will return to the locking position X2.

  As shown in FIG. 7A, when the hinged door E is open and the locking projections 36 of the locking claw 32 are locked to the locking recess 58b of the locked means 50, the rolling element (sphere) ) Even if 20 rolls along the guide path 40 to the other 30b side of the locking means 30, the locking claw 32 is not unlocked. In this case, as shown in FIG. 7 (b), when the hinged door E is moved in the closing direction P, the locking recess 58b of the locked means 50 is disengaged from the locking protrusion 36 of the locking claw 32. The moving body (sphere) 20 rolls along the guide path 40 toward the other side 30b of the locking means 30, and the locking claw 32 is moved to the original non-locking position X2 as shown in FIG. 7 (d). Will return.

  Although the above embodiment has been described based on the swing of the hinged door E in the opening / closing direction, as shown in FIG. 8, the earthquake locking device 1 swings in the direction (H direction) substantially perpendicular to the opening / closing direction of the hinged door E. Can also respond. The locking means 30 has a very short distance from the contact surface 45 of the contact wall 43 to the rotation center of the locking means 30 (centers of the support shafts 41 and 42), as shown in FIG. Even when the rolling element (sphere) 20 abuts against the abutment surface 45, about one third of the rolling element (sphere) 20 is from the rotation center of the locking means 30 (centers of the support shafts 41 and 42). On the other hand, it protrudes to the 30a side.

Since the locking means 30 has the rolling element (sphere) 20 on the other 30b between the contact surface 45 of the contact wall 43 and the rotation center of the locking means 30 (centers of the support shafts 41 and 42), One side 30a of the locking means 30 is held at the non-locking position X1. However, when the rolling element (sphere) 20 moves slightly toward the one 30a side of the locking means 30, the locking means 30 exceeds the rotation center of the locking means 30 (centers of the support shafts 41 and 42). Due to the weight of the rolling element (sphere) 20, the locking claw 32 rotates in the locking direction (clockwise).

  As shown in FIG. 8C, the height of the left guide wall 37 and the right guide wall 39 is lower than half the height of the rolling element (sphere) 20, and the end of the rolling element (sphere) 20 is The movement in the H direction is possible until it is located on the left guide wall 37 or the right guide wall 39. When the rolling element (spherical body) 20 is positioned on the other 30 b of the locking means 30, it is in the middle of the contact surface 45 of the contact wall 43 and is stationary at the deepest position. When an earthquake occurs and swings in a direction (H direction) substantially perpendicular to the opening / closing direction of the hinged door E, the rolling elements (spheres) 20 also move in the H direction as shown in FIG. When the rolling element (sphere) 20 moves in the H direction, the rolling element 20 moves along the curved contact surface 45 toward the one side 30a of the locking means 30, and the rotation center of the locking means 30 (of the support shafts 41 and 42). Center).

  When the rolling element (sphere) 20 exceeds the rotation center of the locking means 30 (centers of the support shafts 41 and 42), the locking means 30 is engaged with the locking claw 32 by the weight of the rolling element (sphere) 20. It rotates in the stopping direction (clockwise), and the locking means 50 is locked to lock the hinged door E. Thus, the earthquake locking device 1 can cope with various earthquake shaking. In the guide path 40, the left guide wall 37 and the right guide wall 39 may be removed, and the upper surface 31b may be curved in a concave shape.

  Another embodiment of the earthquake locking device according to the present invention will be described with reference to FIGS. FIG. 11 is a side sectional view of the locking device at the time of earthquake in a normal state. FIG. 12 is a side cross-sectional view of the locking device at the time of earthquake at the time of locking. FIGS. 13A and 13B are explanatory views of the main part of the earthquake locking device, in which FIG. 13A is a top view with the lid member and the locking means removed, FIG. (D) is a side view, (e) is a bottom view, (f) is a front sectional view, and (g) is a front view. FIG. 14 is a side cross-sectional view for explaining the operation of the earthquake locking device. 15 and 16 are side sectional views for explaining the releasing operation of the earthquake locking device.

  The earthquake lock device 61 is provided in the storage device A with a hinged door such as furniture and a hanging cupboard, and regulates the opening of the hinged door E at the time of the earthquake. The case 2 attached to the storage device main body B and the case 2 The locking means 30 is provided so as to be rotatable, and the rolling element 20 is provided so as to be able to roll on the locking means 30. The locking means 30 has a locking claw 32 at the lower part of one side 30a, the locking claw 32 can be rotated from the non-locking position X1 to the locking position X2, and the locking claw 32 is locked. It can be locked to the locked means 50 of the hinged door E at the position X2.

  Further, the locking means 30 is formed with a guide path 40 that guides the rolling element 20 from the one 30a side to the other 30b side by its own weight. The rolling element 20 is positioned on the other 30b of the locking means 30 by the guide path 40 during a non-earthquake, holds the locking claw 32 at the non-locking position X1 by the weight of the rolling element 20, and moves to the guide path 40 during an earthquake. It moves to one side 30a of the latching means 30, and it is comprised so that the latching claw 32 may be rotated to the latching position X2 with the weight of the rolling element 20. FIG.

  The guide path 40 is formed from one 30a side to the other 30b side across the rotation center of the locking means 30. The guide path 40 is formed at the upper part of the locking means 30 and guides the rolling element 20 so as to be able to roll in the longitudinal direction of the locking means 30. A pair of guide walls 37, 39 provided on both sides in the short direction. And an abutting wall 43 provided on the other 30b side in the longitudinal direction with which the rolling element 20 abuts. The contact wall 43 is formed with a curved contact surface 45 that guides the rolling element 20 toward the one side 30a. A locking projection 36 is formed at the tip of the locking claw 32 so as to protrude in the closing direction P of the hinged door E.

  When the case 2 is in a state where it moves to one side 30a of the locking means 30 along the guide path 40 in the event of an earthquake and the locking claw 32 is rotated to the locking position X2 by the weight of the rolling element 20, Engaging means 62 is provided for engaging with the means 30 and holding the locked state. The engaging means 62 includes an engaging member 63 that engages one side 31 b of the locking means 30, and a release member 65 that releases the engagement of the engaging member 63 with respect to the locking means 30. The engaging member 63 is rotatably provided in the case 2 in a state where it is urged in the direction of engagement by its own weight or an elastic member.

  Further, the earthquake locking device 61 will be described in detail. As shown in FIG. 11, since the earthquake locking device 61 has a structure in which the engaging device 62 is attached to the earthquake locking device 1, the engaging device 62 will be described. As shown in FIG. 13, the engagement means 62 includes an engagement member 63, a release member 65, and a support shaft 66. The engaging member 63 is formed in an elongated rod shape, the tip 63 a is formed in a semicircular shape, and the tip 63 a is formed so as to be engageable with the locking means 30. The engaging member 63 has a rear end 63 b that is connected to a substantially middle portion of the support shaft 66. Similar to the engagement member 63, the release member 65 is formed in an elongated rod shape, the tip 65 a is formed in a semicircular shape, and the rear end 65 b is connected to a substantially middle portion of the support shaft 66. The engagement member 63 and the release member 65 are connected in a shape bent in a substantially square shape.

  A pair of bearing members 68 and 69 are provided on the front wall 9 of the case body 3. Bearing recesses 68a and 69a are formed in the bearing members 68 and 69, respectively. Further, an insertion hole 70 is formed in the substantially upper center portion of the front wall 9. Protruding pieces 72 and 72 are formed on the front part of the inner surface of the lid member 5 to close the bearing recesses 68a and 69a of the bearing members 68 and 69. The engaging means 62 is provided in the case 2 such that the support shaft 66 is rotatably supported by the bearing recesses 68a and 69a of the bearing members 68 and 69, and the release member 65 projects outward from the insertion hole 70. It has been. Since the bearing recesses 68a and 69a are closed by the projecting pieces 72 and 72 provided on the lid member 5, the support shaft 66 does not come off from the bearing recesses 68a and 69a.

  The earthquake locking device 61 is attached to the storage device A with a hinged door such as furniture, a hanging cupboard, a desk, etc. in the same manner as the earthquake locking device 1. The hinged means 50 is attached to the hinged door E. As shown in FIG. 14, in the earthquake locking device 61, the rolling element (sphere) 20 is located behind the support shafts 41 and 42 in a normal state (non-earthquake), and the contact surface 45 of the contact wall 43. Because of the weight of the rolling element (sphere) 20, the front (one 30 a) is positioned upward, and the locking claw 32 is held at the non-locking position X <b> 1 in the case 2. Has been. In the engaging means 62, the tip 63 a of the engaging member 63 is in contact with the guide surface 35 of the locking claw 32 due to its own weight. In this state, even if the hinged door E is pulled out (opened) or pushed in (closed), the locking claw 32 is positioned at the non-locking position X1, so that the locked means 50 is There is no contact with the locking claw 32 of the locking device 61 and there is no influence from the locking device 61 during an earthquake.

  As shown in FIG. 14B, when an earthquake occurs when the hinged door E is pushed in (closed), the rolling element (sphere) 20 detects the shaking of the earthquake and enters the guide path 40. Along this direction, the locking means 30 moves to one side 30a (the opening direction Q of the front hinged door E). When the rolling element (spherical body) 20 moves to one side 30a, the locking means 30 has a locking direction (clockwise direction) of the locking claw 32 around the support shafts 41 and 42 by the weight of the rolling element (spherical body) 20. ). When the locking means 30 rotates in the locking direction (clockwise), the locking claw 32 moves to the locking position X2, enters the locking frame 55 of the locked means 50, and the hinged door E is locked. The opening of the hinged door E is prevented. In the engaging means 62, the tip 63a of the engaging member 63 is in sliding contact with the guide surface 35 of the locking claw 32. When the locking means 30 is rotated to the locking position X2 of the locking claw 32, the tip 63a is Since it deviates from the guide surface 35, it rotates in the engagement direction (clockwise) around the support shaft 66 by its own weight, and the tip 63a engages with the upper surface 31b.

  When the engaging means 62 engages the locking means 30, no matter how the rolling element (sphere) 20 moves, it is held at the locking position X2 as shown in FIGS. 14 (b) and 14 (c). The hinged door E is locked and the opening of the hinged door E is restricted. Thus, when an earthquake occurs when the hinged door E is pushed in (closed), the locking claw 32 of the locking means 30 enters the locking frame 55 of the locked means 50, and the locking The joining means 62 engages with the locking means 30 to hold the locking state of the locking means 30, whereby the hinged door E is locked and the opening of the hinged door E is restricted.

  Next, a method for releasing the earthquake locking device 61 will be described. As shown in FIG. 15A, in the earthquake locking device 61, the guide path 40 formed in the locking means 30 is inclined downward toward the other 30b side. ) 20 rolls along the guide path 40 to the other 30b side of the locking means 30 and comes into contact with the contact wall 43 and stops. Since the rolling element (sphere) 20 exceeds the center of rotation (the left support shaft 41 and the right support shaft 42), the locking means 30 is counterclockwise, that is, the locking claw 32 by the weight of the rolling element (sphere) 20. However, as described above, the engaging state is maintained by the engaging means 62.

  As shown in FIG. 15B, when the release member 65 is operated and pushed upward, the engagement means 62 rotates counterclockwise, that is, the counter-engagement direction, and the tip 63a of the engagement member 63 is engaged. The stopper means 30 is disengaged from the upper surface 31b. As shown in FIG. 15C, the locking means 30 is rotated counterclockwise, that is, in the counter-locking direction of the locking claw 32 by the weight of the rolling element (sphere) 20 located on the other 30b. Then, the locking claw 32 returns to the original non-locking position X2. As shown in FIG. 15D, when the operation of the release member 65 is stopped, the tip 63a of the engagement member 63 comes into contact with the guide surface 35 of the locking claw 32 due to its own weight, and the engagement means 62 is restored to the original state. Return to the state. Since the locking means 30 has returned to the original state, the hinged door E can be opened and closed.

  Next, as shown in FIG. 16A, when the hinged door E is opened, the earthquake locking device 61 in the case where the locking claw 32 is positioned at the locking position X2 due to shaking such as malfunction. A method of canceling will be described. Since the rolling element (sphere) 20 is positioned at the other 30b beyond the rotation center (the left support shaft 41 and the right support shaft 42), the locking device 61 at the time of the earthquake is determined by the weight of the rolling element (sphere) 20 Although the locking means 30 is going to rotate counterclockwise, that is, in the counter-locking direction of the locking claw 32, the locked state is maintained by the engaging means 62 as described above.

  As shown in FIG. 16B, when the release member 65 is operated and pushed upward, the engaging means 62 rotates counterclockwise, that is, the anti-engagement direction, and the tip 63a of the engagement member 63 is engaged. The stopper means 30 is disengaged from the upper surface 31b. As shown in FIG. 16 (c), the locking means 30 rotates in the counterclockwise direction, that is, in the counter-locking direction of the locking claw 32 by the weight of the rolling element (sphere) 20 located on the other 30 b. Then, the locking claw 32 returns to the original non-locking position X1. As shown in FIG. 16D, when the operation of the release member 65 is stopped, the tip 63a of the engagement member 63 comes into contact with the guide surface 35 of the locking claw 32 by its own weight, and the engagement means 62 is restored to the original state. Return to the state. Since the locking means 30 has returned to the original state, the hinged door E can be opened and closed.

  As described above, the earthquake locking device 1 is provided in the storage device A with a hinged door such as furniture and a hanging cupboard, and the rolling element 20 is positioned on the other 30b of the locking means 30 by the guide path 40 during a non-earthquake, The locking claw 32 is held at the non-locking position X1 by the weight of the rolling element 20. In the earthquake locking device 1, the rolling element 20 moves to one side 30 a of the locking means 30 along the guide path 40 in the event of an earthquake, and the locking claw 32 is rotated to the locking position X <b> 2 by the weight of the rolling element 20. The locking claw 32 is locked to the locked means 50 of the hinged door E to restrict the opening of the hinged door E. In the earthquake locking device 1, when the earthquake ends, the rolling element 20 moves to the other 30b of the locking means 30 by the guide path 40, and the locking claw 32 is rotated to the non-locking position X1 by the weight of the rolling element 20. Then, the locking claw 32 is removed from the locked means 50 of the hinged door E so that the hinged door E can be opened and closed.

  Since the locking claw 32 is in the non-locking position X1 in the normal state during the earthquake, the locking device 1 does not lock the locked means 50 of the hinged door E, and the rolling element 20 during the earthquake. Moves to the locking claw 32 side, the locking claw 32 protrudes to the locking position X2 to lock the locked means 50 of the hinged door E, and the rolling element 20 prevents the locking claw 32 from moving upward. Thus, the opening of the hinged door E can be reliably regulated. In the earthquake locking device 1, the rolling element 20 automatically moves along the guide path 40 to the other 30 b of the locking means 30 at the end of the earthquake and moves the locking claw 32 to the non-locking position X <b> 1. Therefore, no special release operation is required. In addition, the earthquake locking device 1 has a simple structure and can be manufactured at low cost, is compact and hardly breaks down, and can be easily mounted in a narrow space such as a drawer.

  In the earthquake locking device 1, since the guide path 40 is formed from one 30a side to the other 30b side with the rotation center of the locking means 30 in between, the rolling element 20 located on the other 30b side during a non-earthquake. The one 30a is positioned upward due to the weight of the lock, and the locking claw 32 provided on the one 30a of the locking means 30 is held at the non-locking position X1. Since the rolling element 20 moves to one side 30a of the locking means 30 in the earthquake locking device 1, the one 30a is moved down by the weight of the rolling element 20 and is provided on one side 30a of the locking means 30. The locking claw 32 moves to the locking position X2, the locking claw 32 locks the locked means 50 of the hinged door E, and restricts the opening of the hinged door E.

  In the earthquake locking device 1, when the earthquake ends, the rolling element 20 moves to the other 30b of the locking means 30 by the guide path 40, and the locking claw 32 is moved up to the non-locking position X1 by the weight of the rolling element 20. Then, the locking claw 32 is removed from the locked means 50 of the hinged door E so that the hinged door E can be opened and closed. Thus, the locking device 1 at the time of an earthquake can respond sensitively to the shaking of the earthquake by moving the rolling elements 20 due to the earthquake so that both sides of the locking means 30 move up and down across the center of rotation.

  In the earthquake locking device 1, a guide path 40 is formed on the upper portion of the locking means 30 and guides the rolling element 20 so that it can roll in the longitudinal direction of the locking means 30. Since it has the guide walls 37 and 39 and the abutting wall 43 provided on the other 30b side in the longitudinal direction with which the rolling element 20 abuts, it can be mounted simply by placing the rolling element 20 on the locking means 30, Easy to assemble.

  In the earthquake locking device 1, the contact wall 43 with which the rolling element 20 abuts is formed with a curved contact surface 45 that guides the rolling element 20 to the one side 30a. It is possible to cope with not only the shaking but also the shaking of the locking means 30 in the short direction. Since the locking device 1 at the time of the earthquake has a locking projection 36 protruding in the closing direction P of the hinged door E at the tip of the locking claw 32, the locking device 1 is locked to the locked means 50 provided on the hinged door E. The protrusion 36 is caught and is not easily detached from the locked means 50.

  The earthquake locking device 61 moves the rolling element 20 to one side 30a of the locking means 30 along the guide path 40 and rotates the locking claw 32 to the locking position X2 by the weight of the rolling element 20 at the time of the earthquake. The locking claw 32 is locked to the locked means 50 of the hinged door E to restrict the opening of the hinged door E. On the other hand, in the earthquake locking device 61, since the engaging means 62 engages with the locking means 30 and maintains the locked state, the rolling element 20 moves to the other 30b of the locking means 30 due to the shaking of the earthquake. When the locking claw 32 is rotated to the non-locking position X1 by the weight of the rolling element 20, the locking claw 32 is held at the locking position X2 and the hinged door E is locked. Is maintained. As described above, when the locking claw 32 rotates to the locking position X2, the locking device 61 at the time of the earthquake holds the locking state of the locking means 30 by the engaging means 62, and the rolling element 20 is moved to the other by the shaking of the earthquake. Even if it moves to 30b, since latching is not cancelled | released, the hinged door E can be reliably locked during an earthquake.

The seismic locking device 61 includes an engaging member 63 in which the engaging means 62 engages one side 31b of the locking means 30, and a release member 65 that releases the engagement of the engaging member 63 with respect to the locking means 30. The engaging member 63 is rotatably provided in the case 2 in a state where the engaging member 63 is urged in a direction in which the engaging member 63 is engaged by its own weight or an elastic member. When the engaging member 63 engages the engaging means 30 and holds the engaging claw 32, the locking device 61 at the time of the earthquake operates the release member 65 when the engaging member 63 is operated. The engagement with the locking means 30 can be easily released.

It is side surface sectional drawing of the normal time of the locking device at the time of an earthquake which concerns on this invention. It is side surface sectional drawing at the time of the locking of the locking device at the time of an earthquake concerning this invention. It is explanatory drawing explaining the attachment state of the locking device at the time of an earthquake which concerns on this invention. It is principal part explanatory drawing of the locking device at the time of an earthquake which concerns on this invention. It is explanatory drawing of the latching means of the locking device at the time of an earthquake which concerns on this invention. It is side surface sectional drawing explaining operation | movement of the locking device at the time of an earthquake which concerns on this invention. It is side surface sectional drawing explaining the cancellation | release operation | movement of the locking device at the time of an earthquake which concerns on this invention. It is explanatory drawing explaining operation | movement of the rolling element on the latching means of the locking device at the time of an earthquake which concerns on this invention. It is explanatory drawing of the to-be-latched means of the locking device at the time of an earthquake which concerns on this invention. It is explanatory drawing of the to-be-latched means of the other form of the locking device at the time of an earthquake which concerns on this invention. It is side surface sectional drawing of the normal time of the locking device at the time of an earthquake which concerns on this invention. It is side surface sectional drawing at the time of the locking of the locking device at the time of an earthquake concerning this invention. It is principal part explanatory drawing of the locking device at the time of an earthquake which concerns on this invention. It is side surface sectional drawing explaining operation | movement of the locking device at the time of an earthquake which concerns on this invention. It is side surface sectional drawing explaining the cancellation | release operation | movement of the locking device at the time of an earthquake which concerns on this invention. It is side surface sectional drawing explaining the cancellation | release operation | movement of the locking device at the time of an earthquake which concerns on this invention.

Explanation of symbols

A Storage device with hinged door B Base frame (storage device body)
C Upper wall D Side wall E Sliding door F Drawer P Closing direction Q Opening direction X1 Non-locking position X2 Locking position 1 Earthquake lock device 2 Case 3 Case body 5 Lid member 5a Inner side surface 5b Abutting protrusion 6 Bottom wall 6a Inside Side surface 7 Rear wall 7b Step recess 9 Front wall 9b Step recess 10 Right wall 10a Inner side surface 10b Step recess 11 Left wall 11a Inner side surface 11b Step recess 12 Bearing protrusion 12a Bearing groove 13 Bearing protrusion 13a Bearing groove 15 Opening 16 Contact Protrusion 20 Rolling element (sphere)
25 First projecting piece 26 Through hole 27 Second projecting piece 28 Long hole 29 Screw 30 Locking means 30a One 30b The other 31 Locking body 31a Lower surface 31b Upper surface (one side)
32 Locking claw 33 Locking surface 35 Guide surface 36 Locking protrusion 37 Left guide wall 37a Stopper wall 37b Inner side surface 39 Right guide wall 39a Stopper wall 39b Inner side surface 40 Guide path 41 Left support shaft 42 Right support shaft 43 Contact Wall 45 Contact surface 45a Left end 45b Right end 45c Lower end 47 Stopper piece 50 Locking means 52 Mounting plate 53 Mounting long hole 54 Mounting long hole 55 Locking frame 56 Right guide arm 57 Left guide arm 58 Locking arm 58a Inner side surface 58b Locking recess 59 Locking arm 61 Earthquake locking device 62 Engaging means 63 Engaging member 63a Front end 63b Rear end 65 Release member 65a Front end 65b Rear end 66 Support shaft 68 Bearing member 68a Bearing recess 69 Bearing member 69a Bearing recess 70 Insertion Hole 72 Projection

Claims (7)

An earthquake locking device that is provided in storage devices with hinged doors such as furniture and hanging cabinets and regulates the opening of hinged doors in the event of an earthquake,
A case attached to the storage device body;
Locking means provided rotatably on the case;
It consists of rolling elements provided so as to be able to roll on the locking means,
The locking means has a locking claw at one lower part, the locking claw can be rotated from the non-locking position to the locking position, and the locking claw is locked at the locking position. A guide path that can be locked to the means and that guides the rolling element from one side to the other side by its own weight is formed.
The rolling element is positioned on the other side of the locking means by a guide path during a non-earthquake, holds the locking claw in the non-locking position by the weight of the rolling element, and is placed on one of the locking means along the guide path at the time of an earthquake. An earthquake locking device, wherein the locking claw is configured to move and rotate the locking claw to a locking position by the weight of the rolling element.   2. The earthquake locking device according to claim 1, wherein the guide path is formed from one side to the other side across the rotation center of the locking means.   The guide path is formed in the upper part of the locking means, and the rolling elements abut on a pair of guide walls provided on both sides in the short side direction for guiding the rolling elements to roll in the longitudinal direction of the locking means. The earthquake locking device according to claim 1, further comprising a contact wall provided on the other side in the longitudinal direction.   4. The earthquake locking device according to claim 3, wherein a curved contact surface for guiding the rolling element to one side is formed on the contact wall.   5. The earthquake locking device according to claim 1, wherein a locking protrusion is formed at a tip of the locking claw so as to protrude in a closing direction of the hinged door.   When the case moves to one of the locking means along the guide path in the event of an earthquake and the locking claw is rotated to the locking position by the weight of the rolling element, the case engages with the locking means and engages. 6. The earthquake locking device according to any one of claims 1 to 5, wherein engagement means for holding a stopped state is provided. The engaging means includes an engaging member that engages one side of the locking means and a release member that releases the engagement of the engaging member with respect to the locking means. The engaging member is engaged by its own weight or an elastic member. The earthquake locking device according to claim 6, wherein the locking device is provided on the case so as to be rotatable in a state of being urged in a direction to move.

Images