JP2009256923A - Locking device for use in generation of vibration - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking device for use in the generation of vibrations, which can surely inhibit the opening of a closed door by making a rolling member lock the slide of a sliding member when the vibrations are generated by earthquakes etc. <P>SOLUTION: This locking device 1 for use in the generation of the vibrations unopenably locks the door D in the closing of a furniture body A during the vibrations. A locking device body 10 comprises: a case 11 which is attached to either the door D or the furniture body A, and which has an opening 21 formed in a front portion; the sliding member 70 which slides in a longitudinal direction in the case 11; an elastic member 94 which urges the sliding member 70 to the side of the opening 21; holding arms 110 and 110 which are opened when the sliding member 70 slides forward, and which are closed when the sliding member 70 slides backward; and a rolling element 50 which remains stationary in a position not to inhibit the slide of the sliding member 70, during the nonvibrations, and which inhibits the slide of the sliding member 70 by moving from a prescribed position during the vibrations. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vibration locking device that is provided in furniture including a door or a drawer that opens and closes, and that locks the door or the drawer in a closed state and restricts the opening during vibration such as an earthquake.

  2. Description of the Related Art Conventionally, a lock device that locks the opening and closing of a door is provided in a furniture body provided with a door that opens and closes, and includes a locking body attached to the door and a lock device body attached to the furniture body. The locking device main body is linked to the case having a front opening, a sliding member that slides in the front-rear direction in the case, an elastic member that biases the sliding member toward the opening, and a sliding member. And a pair of gripping arms that open when the sliding member slides forward to open the locking body and close when the sliding member slides backward to hold the locking body. When the sliding member is in a state where the engagement piece provided on the sliding member is guided by the guide path formed in the case and the sliding member slides forward to open the pair of gripping arms, Positioning is performed when the sliding member slides backward to close the pair of gripping arms (for example, Patent Documents 1 and 2).

The above conventional locking device is called a so-called push latch, and when the door is closed, the locking body provided on the door resists the elasticity of the elastic member against the sliding member of the locking device main body provided on the furniture body. Push in. When the sliding member is pushed in, the pair of opened gripping arms closes and holds the locking body. The sliding member is positioned at a position where the pair of gripping arms are closed. In this state, the door cannot be opened because the locking member on the door side is held by the lock device main body on the furniture main body side. If the door is further pushed in this state, the locked state of the sliding member is released, and the sliding member is pushed out by the elastic member. When the sliding member is pushed out, the pair of closed gripping arms is opened to release the locking body. In this way the door can be opened.
Japanese Utility Model Publication No.2-2857 Japanese Patent No. 2800646

  In the conventional locking device, when the door is closed, the locking body provided on the door is held by a pair of gripping arms of the locking device main body provided on the furniture main body. If vibration occurs in this state, the door will not open in response to shaking in the door opening direction. However, when the door swings in the closing direction, the door is pushed, the locked state of the sliding member is released, and the sliding member is pushed out by the elastic member. When the sliding member is pushed out, the pair of closed gripping arms is opened, the locking body is opened, and the door is opened. If the door is opened at the time of vibration, an object stored in the furniture body will pop out. As described above, the conventional so-called push latch type locking device has a problem that the door opens when vibration such as an earthquake occurs when the door is closed.

  The present invention has been devised in view of the above problems, and when a vibration such as an earthquake occurs, the rolling member locks the sliding member to open the closed door or drawer. An object of the present invention is to provide a vibration locking device that can be reliably prevented.

  In order to achieve the above object, the vibration lock device according to claim 1 of the present application is a vibration lock device that locks the door or the drawer when the furniture main body having the door or the drawer to be opened and closed is unopenable during vibration. The lock device main body is attached to either the door or the drawer or the furniture main body, and includes a case in which an opening is formed in the front portion, a sliding member that slides in the front-rear direction in the case, and a sliding member. An elastic member that biases toward the opening side and a sliding member that is linked to the sliding member, opens when the sliding member slides forward, and closes when the sliding member slides backward, and a sliding member when not vibrating And a rolling element that moves from the predetermined position during vibration to prevent the sliding member from sliding.

  In order to achieve the above object, the vibration locking device according to claim 2 of the present application is incapable of moving because the rolling element is guided by the sliding member when the sliding member slides forward, When the sliding member slides backward, the sliding member is configured to move away from the sliding member.

  In the vibration locking device according to claim 3 of the present application, in order to achieve the above object, when the sliding member slides forward, the rolling element is housed and moved in the housing recess formed in the sliding member. It is impossible, and when the sliding member slides backward, it is configured to be able to move out of the housing recess of the sliding member.

  In order to achieve the above object, the vibration lock device according to claim 4 of the present application includes a front member, a rear member, and a connecting portion that connects the front member and the rear member. A linkage portion linked to the grip arm is formed, and the storage recess is formed in the rear member.

  In order to achieve the above object, the vibration lock device according to claim 5 of the present application has the front member and the rear member formed in a substantially rectangular cross section, and the storage recess is formed on each surface of the rear member. The case is formed with a sliding chamber having a substantially rectangular cross section for accommodating the sliding member so that the sliding member cannot rotate and can slide only in the front-rear direction, and the sliding chamber corresponding to each surface of the rear member. Each wall surface is a bottom surface depending on the attachment position of the lock device body to the furniture body, and an inclined surface that guides the rolling elements to a predetermined position is formed.

  In order to achieve the above object, the vibration lock device according to claim 6 of the present application has a locking body attached to the door or the drawer and the other of the furniture main body to which the lock device main body is not attached, The sliding member is configured to have a shape that is pushed backward against the elasticity of the elastic member and is held by a gripping arm that is closed.

  In the vibration locking device according to the present invention, when the door or the drawer is closed, the locking body provided on either the door or the drawer or the furniture body slides the sliding member backward against the elasticity of the elastic member. Move. When the sliding member slides backward, the gripping arm closes in conjunction with the sliding member, and holds the locking body. When the door or the drawer is opened, the sliding member slides forward due to the elasticity of the elastic member, the gripping arm interlocked with the sliding member is opened, and the locking body is released. The vibration locking device according to the present invention is stationary at a predetermined position where the rolling element does not prevent the sliding member from sliding during non-vibration (normal time), but when it vibrates (earthquake). The moving body moves from a predetermined position (static position) to prevent the sliding member from sliding. As described above, the vibration locking device according to the present invention can be used as a push latch during non-vibration (normal time), and the door or drawer during closing is opened during vibration (earthquake). There is an effect that it can be locked impossible.

  In the vibration locking device according to the present invention, when the sliding member slides forward, that is, when the gripping arm is open, the rolling element is guided by the sliding member and cannot move. Even during vibration (earthquake), the sliding member can slide backward. In addition, when the sliding member slides backward, that is, when the gripping arm is closed, the rolling element can move away from the sliding member, so at the time of vibration (earthquake) The rolling element can move to prevent the sliding member from sliding forward. As described above, the vibration locking device according to the present invention has an effect that the door or the drawer can be reliably locked during vibration (earthquake).

  In the vibration locking device according to the present invention, when the sliding member slides forward, that is, when the gripping arm is open, the rolling element is housed in the housing recess formed in the sliding member and cannot move. Therefore, the sliding member can slide backward even during vibration (earthquake). In addition, when the sliding member slides backward, that is, when the gripping arm is closed, the rolling element can move away from the housing recess of the sliding member, so that it can vibrate (during an earthquake) In this case, the rolling elements can move to prevent the sliding member from sliding forward. As described above, the vibration locking device according to the present invention has an effect that the door or the drawer can be reliably locked during vibration (at the time of earthquake).

  In the vibration locking device according to the present invention, the sliding member has a substantially rectangular cross section, and the storage recess for storing the rolling elements is formed on each surface except the front surface and the rear surface. An inclined surface for guiding the rolling element to a predetermined position is formed on each wall surface of the sliding chamber having a substantially rectangular cross section that is accommodated so as to be slidable only in the direction. Therefore, in the vibration locking device according to the present invention, depending on the mounting position of the locking device main body to the furniture body, door or drawer, each surface of the sliding member becomes a lower surface provided with a storage recess, and each wall surface is an inclined surface. Therefore, there is an effect that it can be freely selected without limiting the attachment position.

  An embodiment of a vibration locking device according to the present invention will be described with reference to FIGS. FIG. 1 is an overall perspective view of the locking device during vibration, where (a) is an overall perspective view seen from above, and (b) is an overall perspective view seen from below. 2 is an overall exploded perspective view of the vibration locking device of FIG. FIG. 3 is a perspective view showing a state in which the components of FIG. 2 are incorporated. 4A and 4B are explanatory views of the locking device, wherein FIG. 4A is an exploded perspective view and FIG. 4B is an assembled perspective view. 5A and 5B are diagrams showing the operation principle in normal times, where FIG. 5A is a plan view showing a state before the door is closed, and FIG. 5B is a side sectional view showing a state before the door is closed. 6A and 6B are diagrams showing the operation principle in normal times, where FIG. 6A is a plan view showing a state in which the door is closed, and FIG. 6B is a side sectional view showing a state in which the door is closed. 7A and 7B are diagrams illustrating the operation principle in normal times, in which FIG. 7A is a plan view showing a state after the door is closed, and FIG. 7B is a side sectional view showing a state after the door is closed.

  8A and 8B are diagrams showing the operating principle during vibration, where FIG. 8A is a plan view showing a state after the door is closed, and FIG. 8B is a side sectional view showing a state after the door is closed. 9A and 9B are diagrams showing the operating principle during vibration, wherein FIG. 9A is a plan view showing a state in which the door is closed, and FIG. 9B is a side sectional view showing a state in which the door is closed. 10A and 10B are diagrams showing an operating principle during vibration, where FIG. 10A is a plan view showing a locked state of the door, and FIG. 10B is a side sectional view showing the locked state of the door. FIGS. 11A and 11B are diagrams illustrating an operation principle during vibration, in which FIG. 11A is a plan view illustrating unlocking of the door, and FIG. 11B is a side cross-sectional view illustrating unlocking of the door. FIG. 12 is a plan view for explaining the movement of the rolling element during vibration.

  FIGS. 13A and 13B are diagrams showing the operation principle of positioning of the sliding member, where FIG. 13A is a plan view in which the sliding member is positioned at the open position of the gripping arm, and FIG. (C) is a plan view in which the sliding member is positioned at the closed position of the gripping arm, and (d) is a plan view in a state in which the sliding member is further pushed. FIG. 14 is an explanatory diagram of the case body. FIG. 15 is a perspective view showing an assembled state of the locking device during vibration. FIG. 16 is a plan view for explaining the operation of the gripping arm. FIG. 17 is a cross-sectional view showing a usage pattern of the vibration locking device. FIG. 18 is a perspective view showing a usage pattern of the vibration locking device.

  The vibration lock device 1 can lock the door D or the drawer when the furniture body A is closed with the door D or the drawer to be opened and closed so that the door cannot be opened during the vibration. The lock device body 10 of the vibration lock device 1 is attached to either the door D or the drawer or the furniture body A. The lock device main body 10 includes a case 11 having an opening 21 formed in a front portion, a sliding member 70 that slides in the front-rear direction in the case 11, and an elastic member 94 that biases the sliding member 70 toward the opening 21. The gripping arms 110, 110 that open when the sliding member 70 slides forward, and close when the sliding member 70 slides backward, and the sliding member 70 when not vibrating. It has a rolling element 50 that is stationary at a predetermined position that does not prevent sliding, and that moves from the predetermined position during vibration to prevent the sliding member 70 from sliding.

  When the vibration lock device 1 closes the door D or the drawer, the locking member 125 provided on either the door D or the drawer or the furniture body A opposes the sliding member 70 against the elasticity of the elastic member 94. Slide backwards. When the sliding member 70 slides rearward, the grip arms 110 and 110 are closed in conjunction with the sliding member 70, and the locking body 125 is held. When the door D or the drawer is opened, the sliding member 70 slides forward due to the elasticity of the elastic member 94, the gripping arms 110, 110 interlocking with the sliding member 70 are opened, and the locking body 125 is released. The vibration locking device 1 is stationary at a position where the rolling element 50 does not block the sliding of the sliding member 70 during non-vibration (normal time), but the rolling element 50 during vibration (earthquake). Moves from a predetermined position (static position) and engages with the sliding member 70 to prevent the sliding member 70 from sliding. Thus, the vibration locking device 1 can be used as a push latch during non-vibration (normal time), and cannot open the door D or drawer when closed during vibration (earthquake). Can be locked.

  When the sliding member 70 slides forward, that is, when the gripping arms 110 and 110 are open, the rolling element 50 is guided by the sliding member 70 and cannot move. Therefore, the sliding member 70 can slide backward even during vibration (earthquake). Further, when the sliding member 70 slides rearward, that is, when the gripping arms 110 and 110 are closed, the rolling element 50 can move away from the sliding member 70, so that it can be moved during vibration ( At the time of an earthquake), the rolling element 50 can move to prevent the sliding member 70 from sliding forward. As described above, the vibration lock device 1 can reliably lock the door D or the drawer open during vibration (earthquake).

  When the sliding member 70 slides forward, that is, when the gripping arms 110 and 110 are open, the rolling device 50 is housed in the housing recess 91 formed in the sliding member 70. Therefore, the sliding member 70 can slide rearward even during vibration (earthquake). Further, when the sliding member 70 slides backward, that is, when the gripping arms 110 and 110 are closed, the rolling element 50 can move away from the housing recess 91 of the sliding member 70. During vibration (earthquake), the rolling element 50 can move to prevent the sliding member 70 from sliding forward. As described above, the vibration lock device 1 can reliably lock the door D or the drawer open during vibration (earthquake).

  The sliding member 70 includes a front member 71, a rear member 72, and a connecting portion (connecting shaft) 73 that connects the front member 71 and the rear member 72. The front member 71 is formed with a linkage portion 83 that is linked to the grip arms 110 and 110. The rear member 72 is formed with the storage recess 91.

  The front member 71 and the rear member 72 have a substantially rectangular cross section. The storage recess 91 is formed on each surface 77, 78, 79, 80 of the rear member 72. The case 11 is formed with a sliding chamber 25 having a substantially rectangular cross section for accommodating the sliding member 70 so that the sliding member 70 cannot rotate but can slide only in the front-rear direction. The wall surfaces 20, 13, 26, and 27 of the sliding chamber 25 corresponding to the surfaces 87, 88, 89, and 90 of the rear member 72 become bottom surfaces depending on the mounting position of the lock device body 10 on the furniture body A, and are rolling elements. Inclined surfaces 43, 44, and 45 are formed to guide 50 to a predetermined position. Accordingly, in the vibration lock device 1, each of the surfaces 87, 88, 89, 90 of the sliding member 70 includes the storage recess 91 depending on the position of the lock device body 10 attached to the furniture body A, door D, or drawer. Since it becomes a lower surface and each said wall surface 20,13,26,27 becomes a bottom face provided with the inclined surfaces 43,44,45, it can select freely, without limiting an attachment position.

  The locking member 125 attached to the door D or the drawer and the other of the furniture main body A to which the lock device main body 10 is not attached pushes the sliding member 70 backward against the elasticity of the elastic member 94 and closes it. It is comprised in the shape hold | maintained by the holding | grip arms 110 and 110 to be used.

  Further, the vibration locking device 1 will be described in detail. The vibration lock device 1 locks the door D when the furniture body A including the door D to be opened / closed is closed so that the door D cannot be opened during vibration such as an earthquake. As shown in FIG. 1, the vibration lock device 1 includes a lock device body 10 and a locking device 120. The lock device body 10 includes a case 11. As shown in FIG. 2, the case 11 includes a case main body 12 and a lid 20 that closes an upper portion of the case main body 12. The case body 12 includes a bottom wall 13, a right wall 15, a left wall 16, a rear wall 17, and a front wall 19, and is formed in a box shape with an open top. The front wall 19 is cut out to form an opening 21. The lid 20 is detachably attached to the upper portion of the case main body 12 with a locking claw, a screw, and the like, and constitutes an upper wall on the case main body 12.

  The case body 12 has a sliding chamber 25 formed on the rear side and a gripping chamber 60 formed on the front side. The sliding chamber 25 includes a right side wall 26, a left side wall 27, a rear side wall 29, a bottom wall 13, and a lid body 20. A front portion of the right side wall 26 (substantially middle portion of the case body 12) is cut out to form a cutout portion 31, and engagement grooves 32 and 32 are formed on both sides of the cutout portion 31. The front portion of the left side wall 27 (substantially middle portion of the case body 12) is also cut out to form a cutout portion 33, and engagement grooves 35 and 35 are formed on both sides of the cutout portion 33 (see FIG. 14).

  Engagement edges 41, 41 formed on both sides of the guide plate 40 are engaged with the right engagement grooves 32, 32, and the guide plate 40 is attached. The guide plate 40 is formed with a guide surface 42 that is on the same side as the inner surface of the right side wall 26 (the surface inside the sliding chamber 25). The guide surface 42 is formed by three inclined surfaces 43, 44, 45 divided by three ridge lines, the intersection 46 of the ridge lines is deepest, and the inclined surfaces 43, 44, 45 descend toward the intersection 46. It is comprised so that it may incline.

  Triangular protrusions 48 and 49 protrude from the guide surface 42. One triangular protrusion 48 is provided at the front upper center of the guide surface 42, and the apex is directed to the intersection (deep point) 46 side. The other triangular protrusion 49 is provided at the center upper rear part of the guide surface 42, and the apex is directed to the intersection (deep point) 46 side. One triangular protrusion 48 and the other triangular protrusion 49 are arranged to face each other, and one triangular protrusion 48 protrudes higher than the other triangular protrusion 49.

  Similarly, the engagement edges 41 and 41 formed on both sides of the guide plate 40 are engaged with the left engagement grooves 35 and 35, and the guide plate 40 is attached. The guide surface 42 of the guide plate 40 is on the same side as the inner surface of the left side wall 27 (the surface inside the sliding chamber 25). The guide surface 42 of the guide plate 40 on the right side wall 26 side and the guide surface 42 of the guide plate 40 on the left side wall 27 side are set to face each other.

  As shown in FIGS. 14 and 2, the guide surface 42 is also formed on the bottom surface 51 (upper surface of the bottom wall 13) of the sliding chamber 25 and the upper surface 52 (lower surface 20 a of the lid 20) of the sliding chamber 25. Yes. The guide surface 42 of the bottom surface 51 and the guide surface 42 of the upper surface 52 are set to face each other. Furthermore, the guide surface 42 of the bottom surface 51, the guide surface 42 of the top surface 52, the guide surface 42 of the guide plate 40 on the right side wall 26 side, and the guide surface 42 of the guide plate 40 on the left side wall 27 side are substantially the same position. Is set to

  As shown in FIGS. 14 and 2, partition plates 53 and 55 are formed on the bottom surface 51 (upper surface of the bottom wall 13) of the sliding chamber 25 and the upper surface 52 (lower surface 20 a of the lid 20) of the sliding chamber 25. Has been. The partition plate 53 provided on the upper surface of the bottom wall 13 is provided in the vicinity of the front portion of the guide surface 42. Similarly, the partition plate 55 provided on the lower surface 20 a of the lid 20 is provided in the vicinity of the front portion of the guide surface 42. The lower end of the partition plate 55 and the upper end of the partition plate 53 are joined by attaching the lid 20 to the case body 12, and the sliding chamber 25 is partitioned by the partition plates 55 and 53. Notches 56 and 57 are formed in the lower end of the partition plate 55 and the upper end of the partition plate 53. When the lower end of the partition plate 55 and the upper end of the partition plate 53 are joined as described above, the notches 56 and 57 allow bearing holes to be formed. 59 is formed. The notches 56 and 57 are formed in a semicircular shape, but it is needless to say that the notches are not limited to this shape.

  The gripping chamber 60 includes a right inclined wall 60 a and a left inclined wall 60 b that are formed so as to expand from the front portion of the sliding chamber 25 toward the opening 21, the bottom wall 13, and the lid body 20. Yes. Guide grooves 63 and 65 are formed toward the opening 21 on substantially the center line of the bottom surface 61 of the gripping chamber 60 (the top surface of the bottom wall 13) and the top surface 62 of the gripping chamber 60 (the bottom surface 20a of the lid 20). Yes. A right bearing hole 66 and a left bearing hole 67 are formed on both sides of the guide groove 63 on the bottom surface 61 of the gripping chamber 60 (the top surface of the bottom wall 13). Further, a right bearing hole 68 and a left bearing hole 69 are formed on both sides of the guide groove 65 on the upper surface 62 of the gripping chamber 60 (the lower surface 20a of the lid 20).

  A sliding member 70 is provided in the sliding chamber 25 so as to be slidable in the front-rear direction. The sliding member 70 includes a front member 71, a rear member 72, and a circular connecting shaft (connecting portion) 73 that connects the front member 71 and the rear member 72. The front member 71 is formed in a cubic shape and includes a front surface 75, a rear surface 76, an upper surface 77, a lower surface 78, a right surface 79, and a left surface 80. The front surface 75 is formed with a semicircular receiving recess 81 extending in the vertical direction. On the upper surface 77, an engaging protrusion 82 is formed which is engaged and guided in a guide groove 65 formed on the lower surface 20a of the lid body 20. On the lower surface 78, an engaging projection 84 is formed that is engaged with and guided by the guide groove 63 formed on the bottom surface 61 (the upper surface of the bottom wall 13). Further, the front member 71 has engagement step recesses 83 formed at the rear corners. The engaging step recess 83 forms a linkage portion of the pair of gripping arms 110.

  The rear member 72 is formed in a rectangular parallelepiped shape, and includes a front surface 85, a rear surface 86, an upper surface 87, a lower surface 88, a right surface 89, and a left surface 90. A storage recess 91 that communicates with the front surface 85 is formed in the front intermediate portion of the upper surface 87, the lower surface 88, the right surface 89, and the left surface 90. A spring accommodating recess 92 that communicates with the rear surface 86 is formed in the rear portion of the lower surface 88, and the spring 94 is accommodated in the spring accommodating recess 92.

  A shaft hole 93 is formed in the rear portion of the upper surface 87, and a support shaft 96 of the engagement piece 95 is rotatably attached to the shaft hole 93. The engagement piece 95 is formed vertically long, and engagement portions 97 are formed at both ends in the longitudinal direction. The engagement piece 95 is guided by a guide path 100 formed on the lower surface 20 a of the lid 20. The guide path 100 includes a front guide portion 101 that guides the engagement piece 95 in a vertically long state, and a rear guide portion 102 that guides the engagement piece 95 in a rotatable manner. A rear projection 103 and a front projection 105 are formed on the rear guide portion 102.

  The grip arm 110 is provided at the arm main body 111, a holding edge 112 protruding from the inside of the tip of the arm main body 111, a fixed shaft 113 provided at the rear vertical position of the arm main body 111, and a rear end of the arm main body 111. And a pair of engaging projections 115, 115. A cutout 116 is formed in the holding edge 112. A substantially triangular guide protrusion 117 is provided on the inner surface of the arm body 111. When the holding edges 112 and 112 of the pair of gripping arms 110 and 110 are joined, an insertion hole 119 is formed by the pair of notches 116 and 116. The cutout 116 is formed in a semicircular shape, but of course is not limited to this shape.

  The locking device 120 is attached to the door D. As shown in FIG. 4, the locking device 120 includes a substrate 121 and a locking body 125 that is rotatably attached to the substrate 121. The substrate 121 has screw insertion holes 122 and 122 through which screws are inserted, and a mounting shaft 123 is provided at the upper end. The locking body 125 includes a shaft portion 126, a locking protrusion 127 formed at the tip of the shaft portion 126, and a bearing boss 128 formed at the rear end of the shaft portion 126. A shaft insertion hole 129 having a substantially C-shaped cross section is formed in the bearing boss 128. The bearing boss 128 has a vertical surface 130 that is perpendicular to the axial direction of the shaft portion 126.

  The lock device body 10 is assembled as follows. Guide plates 40 and 40 are attached to the notch 31 of the right side wall 26 and the notch 33 of the left side wall 27 of the case body 12. The ball 50 is placed on the guide surface 42 of the bottom wall 13. The ball 50 is stopped at an intersection (deep point) 46 at a predetermined position by the inclined surfaces 43, 44, 45.

  The engagement protrusions 115 and 115 of the grip arm 110 are engaged with the engagement step recesses 83 and 83 of the front member 71, the spring 94 is received in the spring storage recess 92 of the rear member 72, and the spring 94 is bent. Thus, the sliding member 70 is mounted in the sliding chamber 25. The ball 50 is stored in a storage recess 91 formed on the lower surface 88 of the rear member 72, and a connecting shaft (connecting portion) 73 is supported by the notch 57 of the partition plate 53 and formed on the lower surface 78 of the front member 71. The engaging projection 84 is slidably engaged with the guide groove 63 of the bottom wall 13. Further, the fixed shaft 113 of the right grip arm 110 is rotatably attached to the right bearing hole 66 of the bottom wall 13, and the fixed shaft 113 of the left grip arm 110 is rotatable to the left bearing hole 67 of the bottom wall 13. Attached to. Since the rear end of the spring 94 is in pressure contact with the rear side wall 29 of the sliding chamber 25, the front surface 85 of the rear member 72 is in pressure contact with the partition plate 53.

  The support shaft 96 of the engagement piece 95 is rotatably inserted into the shaft hole 93 formed in the upper surface 87 of the rear member 72, and the lid body 20 is attached to the case body 12. The engagement piece 95 is disposed in the front guide portion 101 of the guide path 100 formed on the lower surface 20 a of the lid body 20. The partition plate 55 of the lid 20 contacts the partition plate 53 of the case body 12, and the connecting shaft (connecting portion) 73 of the sliding member 70 is inserted into the bearing hole 59 formed by the contact. An engaging protrusion 82 formed on the upper surface 77 of the front member 71 is slidably engaged with the guide groove 65 of the lid 20. In this way, the lock device main body 10 is assembled, and the pair of gripping arms 110 and 110 are housed in the gripping chamber 60. As shown in FIG. 5B, the lock device main body 10 is attached to the upper wall A1 of the furniture main body A with screws or the like.

  As shown in FIG. 4A, the locking device 120 is assembled by inserting the mounting shaft 123 of the substrate 121 through the shaft insertion hole 129 of the locking body 125. As shown in FIG. 5, the locking device 120 is attached to the door D by fixing the substrate 121 to the door D with screws or the like. As for the locking body 125, the vertical surface 130 contact | abuts the surface of the door D, and the axial direction of the axial part 126 becomes substantially horizontal.

  Next, the operation will be described. FIG. 5 is a diagram showing a state in which the door D is open during normal times. In this state, the sliding member 70 is pushed forward by the spring 94 (opening 21 side) and pushed out, and the front surface 85 of the rear member 72 is in pressure contact with the partition plates 53 and 55. As shown in FIG. 13A, the engagement piece 95 is located in the front guide portion 101 of the guide path 100, and the longitudinal direction is directed to the front-rear direction. The ball 50 is stored in a storage recess 91 formed in the lower surface 88 of the rear member 72.

  Since the gripping arm 110 has its engaging projection 115 engaged with the engaging step recess 83 of the front member 71 and the sliding member 70 has moved forward, the gripping arm 110 opens in the direction of opening around the fixed shaft 113. It is rotating. That is, the pair of gripping arms 110 and 110 are in an open state. In this state, even if a vibration such as an earthquake occurs, the movement of the sliding member 70 is not restricted because the ball 50 is stored in the storage recess 91.

  As shown in FIG. 6, when the door D is normally closed, the locking projection 127 of the locking body 125 provided on the door D comes into contact with the receiving recess 81 of the front member 71, and the sliding member 71 is moved to the spring 94. Push in against the elasticity of (move backward). The sliding member 71 is positioned in the left-right direction because the engaging protrusions 82 and 84 of the front member 71 are guided by the guide groove 65 of the lid 20 and the guide groove 63 formed in the bottom wall 13 of the case body 12. Slides only in the front-rear direction without shifting.

  As shown in FIG. 13B, the engagement piece 95 moves to the rear guide portion 102 of the guide path 100 and rotates in contact with the rear projection 103 so that the longitudinal direction is substantially perpendicular to the front-rear direction. . The ball 50 comes out of the storage recess 91 formed on the lower surface 88 of the rear member 72, and can roll on the guide surface. Since no vibration is generated, the ball 50 is stationary at a predetermined position of the intersection (deep point) 46 of the guide surface 42.

  The right holding arm 110 has its engaging projection 115 disengaged from the engaging step recess 83 of the front member 71, abuts against the right surface 79 of the front member 71, and rotates in a closing direction about the fixed shaft 113. The right gripping arm 110 also has its engaging projection 115 disengaged from the engaging step recess 83 of the front member 71, abuts on the left surface 80 of the front member 71, and rotates in a closing direction about the fixed shaft 113. That is, the pair of left and right grip arms 110 and 110 are in a closed state.

  The holding edges 112 of the pair of left and right grip arms 110 and 110 are joined to each other, and the lock protrusion 127 of the lock body 125 is held by the pair of grip arms 110 and 110. The shaft portion 126 of the locking body 125 is inserted through an insertion hole 119 formed by joining the holding edges 112 and 112 of the pair of gripping arms 110 and 110. In this state, if vibration such as an earthquake occurs, the ball 50 is not stored in the storage recess 91, so that the ball 50 rolls on the guide surface 42 and can regulate the movement of the sliding member 70. It becomes.

  As shown in FIG. 7, when the door D is pushed in and released during normal times, the sliding member 70 slides forward due to the elasticity of the spring 94. As shown in FIG. 13C, the engaging piece 95 is engaged with the front protrusion 105 of the rear guide portion 102 because the longitudinal direction is oriented substantially perpendicular to the front-rear direction. The sliding member 70 does not slide forward because the engaging piece 95 engages with the front protrusion 105 of the rear guide portion 102. This state is the same as that in FIG. 6, the ball 50 comes out of the storage recess 91 formed in the lower surface 88 of the rear member 72, and the pair of left and right grip arms 110, 110 are engaged with the locking body 125. The stop projection 127 is held and closed. This state is a state in which the locking device during vibration holds (closes) the door D in a closed state.

  In order to release this holding state from the state where the locking device at the time of vibration shown in FIG. 7 holds (closes) the door D in the closed state, the door D may be pushed again. The sliding member 70 slides backward against the elasticity of the spring 94. As shown in FIG. 13D, the engagement piece 95 moves away from the front projection 105 and moves in the rear guide portion 102 of the guide path 100, rotates in contact with the rear projection 103, and the longitudinal direction is front and rear. Turn to the direction. When the door D is released. The sliding member 70 slides forward due to the elasticity of the spring 94 and returns to the state shown in FIG. As shown in FIG. 16, when the sliding member 70 slides forward, the front surface 75 of the front member 71 engages with the guide protrusions 117 and 117 of the gripping arms 110 and 110, thereby moving the gripping arms 110 and 110. By rotating in the opening direction, the engagement protrusions 115 can be reliably engaged with the engagement step recesses 83 of the front member 71. As described above, when the door D is pressed once, the locking body 125 is held by the locking device main body 10, and when the door D is pressed, the locking body 125 is detached from the locking device main body 10.

  When the vibration locking device shown in FIG. 7 holds (closes) with the door D closed (when closed), when a vibration such as an earthquake occurs, the ball 50 remains stationary as shown in FIG. It deviates from the position (deep point 46). The ball 50 rolls in the left-right direction or rolls in the front-rear direction depending on the amplitude state of vibration. When the ball 50 rolls in the front-rear direction, the ball 50 is fed to the left and right by both side surfaces sandwiching the apexes of the triangular protrusions 48 and 49. As described above, when the ball 50 is removed from the stationary position, the ball 50 is not stored in the storage recess 91 of the sliding member 70, so that the forward movement of the sliding member 70 is restricted.

  When the vibration is generated and the ball 50 is removed from the rest position, as shown in FIG. 9, when the door D is rotated by the vibration, the sliding member 70 resists the elasticity of the spring 94. By sliding backward, the engagement piece 95 is detached from the front protrusion 105 in the same manner as described above. Therefore, as shown in FIG. 10, the sliding member 70 tries to slide forward due to the elasticity of the spring 94, but the ball 50 is sandwiched between the partition plates 53 and 55 and the front surface 85 of the rear member 72 and slides. The member 70 is prevented from returning to the original state (forward movement). Since the sliding member 70 does not move forward, the gripping arms 110 and 110 do not open. Therefore, the locking protrusions 127 of the locking body 125 are held by the pair of gripping arms 110 and 110. In this way, when vibration such as an earthquake occurs when the door D is closed, the sliding member 70 is locked by the ball 50 and the opening of the door D is restricted.

  When the door D is pushed when the vibration is finished, that is, when it is normal, the sliding member 70 slides backward against the elasticity of the spring 94, so that the ball 50 is separated from the partition plates 53, 55 and the rear member 72. The front surface 85 is released and the ball 50 returns to a predetermined position (the deep point 46) and stops. At the predetermined position (the deep point 46) where the ball 50 is stationary, the sliding member 70 can be returned to the original position, and the sliding member 70 slides forward due to the elasticity of the spring 94 to the state shown in FIG. Will return.

  When vibration such as an earthquake occurs in the state shown in FIG. 5, the ball 50 is stored in the storage recess 91, so that the pair of gripping arms 110 and 110 remain open. When the vibration D is noticed and the door D is closed, as described above, the sliding member 70 moves backward, the pair of gripping arms 110 and 110 hold the locking body 125, and the sliding member 70 is locked.

  As shown in FIG. 18, the vibration locking device 1 is not limited in the attachment location, and can be freely selected and attached to the furniture body A. For example, as shown in FIG. 17, when attached to the upper wall A1 of the furniture body A, the bottom wall 13 of the case body 12 becomes the bottom surface, and the ball 50 can roll on the guide surface 42 of the bottom wall 13. The ball 50 can be stored in the storage recess 91 formed in the lower surface 88 of the rear member 72. Further, when attached to the lower wall A <b> 2 of the furniture body A, the lid body 20 becomes the bottom surface, and the ball 50 can roll on the guide surface 42 of the lid body 20, and is formed on the top surface 87 of the rear member 72. The ball 50 can be stored in the storage recess 91. Further, when attached to the right wall A3 of the furniture body A, the left side wall 27 of the case body 12 serves as a bottom surface, and the ball 50 can roll on the guide surface 42 of the guide plate 40 provided on the left side wall 27. The ball 50 can be stored in the storage recess 91 formed in the left surface 90 of the rear member 72. Furthermore, when attached to the left wall A4 of the furniture body A, the right wall 26 of the case body 12 serves as the bottom surface, and the ball 50 can roll on the guide surface 42 of the guide plate 40 provided on the right wall 26. Thus, the ball 50 can be stored in the storage recess 91 formed in the right surface 89 of the rear member 72.

  Since the conventional vibration lock device cannot be mounted upside down or horizontally because of the structure of the vibration sensing unit, the mounting direction and the mounting position are limited. However, as described above, since the vibration lock device 1 can be mounted upside down or horizontally, the mounting direction and the mounting position are not limited. Further, even when a strong opening force is applied to the door D when the door D is closed, the opening force is received by the pair of gripping arms 110 and 110 that are rotatably attached to the case body 12, so that the door D is used for positioning. Since the load is not applied to the engagement piece 95, the engagement piece 95 can be prevented from being damaged.

  Further, since the gripping arms 110 and 110 are housed in the case body 12, the vibration lock device 1 does not come into contact with or collide with a conventional bare state, and is safe and extremely It is hard to break. The vibration locking device 1 is provided with a vibration sensing unit by combining one rolling element 50 and the guide surface 42 at one location. However, if a plurality of vibration sensing units are arranged at the front and rear, the vibration sensing force is improved. , Improve the reliability of the lock. Since the push lock mechanism and the lock mechanism are housed in the case 11, the vibration lock device 1 can reduce the number of parts and can be made compact. The vibration lock device 1 becomes an earthquake-resistant latch when the engagement piece 95 is removed, and becomes a push latch when the ball 50 is removed, so that the configuration according to the application can be easily made. In the above embodiment, furniture is a general term for a furniture provided with a storage unit such as a chest, a desk, a storage, a bookcase, a hanging cupboard, a cabinet, or a wagon. Of course, the door includes a rotary door and a sliding door.

  The vibration lock device according to the present invention can be used in a push latch device that opens and closes a door or drawer of furniture by a pushing operation.

It is a whole perspective view of the locking device at the time of vibration. It is a whole exploded perspective view of the locking device at the time of vibration of FIG. It is a perspective view which shows the state which incorporated each component of FIG. It is explanatory drawing of a locking device. It is a figure which shows the principle of operation in normal times. It is a figure which shows the principle of operation in normal times. It is a figure which shows the principle of operation in normal times. It is a figure which shows the principle of operation at the time of a vibration. It is a figure which shows the principle of operation at the time of a vibration. It is a figure which shows the principle of operation at the time of a vibration. It is a figure which shows the principle of operation at the time of a vibration. It is a top view explaining movement of a rolling element at the time of vibration. It is a figure which shows the operation principle of positioning of a sliding member. It is explanatory drawing of a case main body. It is a perspective view which shows the assembly state of the locking device at the time of vibration. It is a top view explaining operation | movement of a holding arm. It is sectional drawing which shows the usage pattern of the locking device at the time of vibration. It is a perspective view which shows the usage type of the locking device at the time of a vibration.

Explanation of symbols

A Furniture main body A1 Upper wall A2 Lower wall A3 Right wall A4 Left wall D Door 1 Vibration lock device 10 Lock device main body 11 Case 12 Case main body 13 Bottom wall 15 Right wall 16 Left wall 17 Rear wall 19 Front wall 20 Lid 20a Lower surface 21 Opening 25 Sliding chamber 26 Right side wall 27 Left side wall 29 Rear side wall 31 Notch 32 Engaging groove 33 Notch 35 Engaging groove 40 Guide plate 41 Engagement edge 42 Guide surface 43 Inclined surface 44 Inclined surface 45 Inclined Face 46 Intersection (deep point)
48 Triangular protrusion 49 Triangular protrusion 50 Ball (rolling element)
51 Bottom surface 52 Top surface 53 Partition plate 55 Partition plate 56 Notch 57 Notch 59 Bearing hole 60 Holding chamber 60a Right inclined wall 60b Left inclined wall 61 Bottom surface 62 Top surface 63 Guide groove 65 Guide groove 66 Right bearing hole 67 Left bearing hole 68 Right Bearing hole 69 Left bearing hole 70 Sliding member 71 Front member 72 Rear member 73 Connecting shaft (connecting portion)
75 Front surface 76 Rear surface 77 Upper surface 78 Lower surface 79 Right surface 80 Left surface 81 Receiving recess 82 Engaging projection 83 Engaging step recess 84 Engaging projection 85 Front surface 86 Rear surface 87 Upper surface 88 Lower surface 89 Right surface 90 Left surface 91 Storage recess 92 Spring accommodating recess 93 Shaft hole 94 Spring (elastic member)
95 engagement piece 96 support shaft 97 engagement portion 100 guide path 101 front guide portion 102 rear guide portion 103 rear projection 105 front projection 110 gripping arm 111 arm body 112 holding edge 113 fixed shaft 115 engagement projection 116 notch 117 Guide projection 119 Insertion hole 120 Locking device 121 Substrate 122 Screw insertion hole 123 Mounting shaft 125 Locking body 126 Shaft portion 127 Locking projection 128 Bearing boss 129 Shaft insertion hole 130 Vertical surface

Claims (6)

A locking device for vibration that locks the door or drawer when the furniture body is closed with a door or drawer that opens and closes so that it cannot be opened during vibration,
The lock device body is attached to either the door or drawer and the furniture body,
A case with an opening formed at the front,
A sliding member that slides in the front-rear direction in the case;
An elastic member for urging the sliding member toward the opening;
A gripping arm linked to the sliding member, which opens when the sliding member slides forward, and closes when the sliding member slides backward;
A vibration lock characterized by having a rolling element that is stationary at a predetermined position that does not prevent sliding of the sliding member during non-vibration, and that moves from the predetermined position during vibration to prevent sliding of the sliding member. apparatus.   When the sliding member slides forward, the rolling element is guided by the sliding member and cannot move. When the sliding member slides backward, the rolling element is detached from the sliding member. 2. The vibration locking device according to claim 1, wherein the locking device is configured to be movable.   When the sliding member slides forward, the rolling element is housed in a housing recess formed in the sliding member and cannot move, and when the sliding member slides backward, 2. The vibration locking device according to claim 1, wherein the locking device is configured to be movable out of the storage recess of the sliding member. The sliding member includes a front member, a rear member, and a connecting portion that connects the front member and the rear member.
The front member is formed with a linkage portion linked to the grip arm,
4. The vibration locking device according to claim 3, wherein the housing recess is formed in the rear member. The front member and the rear member are formed in a substantially rectangular cross section,
The storage recess is formed on each surface of the rear member,
The case is formed with a sliding chamber having a substantially rectangular cross section for accommodating the sliding member so that the sliding member cannot rotate and can only slide in the front-rear direction.
Each wall surface of the sliding chamber corresponding to each surface of the rear member becomes a bottom surface depending on the mounting position of the lock device main body to the furniture body, and an inclined surface that guides the rolling element to a predetermined position is formed. Item 5. The vibration locking device according to Item 4. Having a locking body attached to the door or drawer and the other of the furniture main body to which the lock device main body is not attached,
The locking body is configured to have a shape that pushes the sliding member rearward against the elasticity of the elastic member and is held by a gripping arm that is closed. The vibration locking device according to claim 1.

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