JP3215536U - Automatic seismic unlocking door - Google Patents

Abstract

[PROBLEMS] To provide an automatic seismic unlocking door excellent in versatility that can be automatically unlocked regardless of the type of door such as a sliding door and a hinged door. A door 10 is provided on a door frame 11 so as to be openable and closable. The door 10 is normally closed when locked, and is automatically opened when an earthquake occurs. The frame side receiving member 20, the door side key receiving member 40 provided on the door portion, and the frame side receiving member are locked to the frame side receiving member by locking with the door side key receiving member by the key member L. And a key receiving member 50 having a connecting key receiving member 50 for connecting the door side key receiving member, and the frame side receiving member is engaged with the connecting key receiving member and the actuating member 61 at the normal time. A seismic unlocking device 60 is provided for actuating the actuating member in response to a signal from a seismic sensor 70 that senses seismic vibration during an earthquake and releasing the engagement with the connecting key receiving member. [Selection] Figure 3

Description

  The present invention relates to an automatic seismic unlocking door that can be normally locked and can be automatically unlocked when an earthquake occurs.

  For example, when a huge earthquake occurs, there is a concern about damage caused by secondary disasters such as fires and tsunamis caused by damage to facilities such as electricity and gas as well as collapse of houses due to vibration. When a fire or tsunami occurs, it is necessary to evacuate to a safer place urgently. When moving from indoors, evacuation routes such as emergency stairs and emergency exits are used.

  Evacuation shelters and emergency exits where many people gather, such as schools and commercial facilities, evacuation towers in the bay area, emergency escape exits on expressways, the perimeter of parking lots, etc. At locations that are partitioned according to the purpose, etc., they are blocked or blocked by a wire mesh fence or the like for security reasons. When the disaster occurs, it is necessary to evacuate from these facilities or use an evacuation place or evacuation route, so an emergency door that allows passage through a fence is installed.

  This type of emergency door is always locked to prevent entry during normal times. However, when used in the event of an earthquake, if the door is locked, there is a risk of troublesome emergency evacuation due to the possibility of troublesome unlocking. Therefore, a door provided with a mechanism for automatically unlocking a locked key by detecting earthquake vibration is known (see, for example, Patent Document 1).

  The automatic seismic unlocking door is a sliding door that locks and locks a hook member in a hook hole, and a notch portion is formed at a hook hole engaging portion with the hook member. The movable plate that moves to open and close the notch is arranged, and the seismic unlocking device that moves the movable plate by opening the notch by sensing the vibration of the earthquake via the wire It is connected.

  In this automatic seismic unlocking door, the movable plate closes the notch, and the hook member is locked to the movable plate. On the other hand, in the locked state, when the seismic unlocking device is activated by the detection of an earthquake, the movable plate rises and the notch is released to release the hook member from being locked, so that the hook member can pass through the notch. The door can be opened freely. However, generally, an emergency door installed on an escape route such as an emergency staircase or an emergency exit uses a hinged door that is opened and closed with respect to a door frame via a hinge portion. Therefore, when installing the automatic unlocking mechanism of the conventional automatic seismic unlocking door on the hinged door, there has been a problem that a new mechanism corresponding to the hinged door is required.

JP 2011-001788 A

  The present invention has been made in view of the above points, and provides a versatile automatic seismic unlocking door that can be automatically unlocked regardless of the type of door such as a sliding door or a hinged door. It is.

  That is, the invention of claim 1 is provided with a door portion that can be opened and closed on a door frame, the door portion is normally closed by locking, and is automatically opened by an automatic unlocking in the event of an earthquake, By locking the frame side receiving member provided in the door frame, the door side key receiving member provided in the door portion and the frame side receiving member, and locking the door side key receiving member by the key member. A composite key receiving member having a connecting key receiving member that connects the frame side receiving member and the door side key receiving member, and the frame side receiving member includes the connecting key receiving member and the operating member at a normal time. And a seismic unlocking device is provided that operates the actuating member in response to a signal from a seismic sensor that senses seismic vibration during an earthquake and releases the engagement with the connecting key receiving member. It relates to the featured automatic seismic unlocking door.

  According to a second aspect of the present invention, the frame side receiving member has a locking wall portion having a frame locking portion having an opening formed in a lower portion, and the door side key receiving member has an L-shape when viewed from above. A key receiving body; a bearing formed at one end of the key receiving body and pivotally supported on a peripheral edge of the door; and a lock formed by the key member at the other end of the key receiving body. A first key receiving portion capable of supporting the connecting key receiving member, the connecting key receiving member being formed in a U-shaped connecting main body in a longitudinal sectional view and one side wall portion of the connecting main body, and the frame of the frame side receiving member. A connection locking portion that is locked to the locking portion, an engagement hole that engages with the actuating member formed in the connection locking portion, and the other side wall portion of the connection main body projecting in the surface direction And a second key receiving portion that can be locked by the key member together with the first key receiving portion. In a normal state, the frame locking portion of the frame side receiving member of the connecting key receiving member The locking wall of the frame side receiving member between the stopped coupling locking portion and the second key receiving portion locked by the key member together with the first key receiving portion of the door side key receiving member In the event of an earthquake, the locking state of the connecting key receiving member is released, and the connecting key receiving member rotates together with the door side key receiving member from the opening of the frame side receiving member. The automatic seismic unlocking door according to claim 1, wherein the coupling locking portion is dropped.

  The invention according to claim 3 relates to the automatic seismic unlocking door according to claim 2, wherein the connection locking portion of the connection key receiving member has a chamfered portion.

  According to a fourth aspect of the present invention, the operating member of the seismic unlocking device comprises a rack member that operates in response to a signal from the seismic device and a pin member that is advanced and retracted by a gear device. The automatic seismic unlocking door according to claim 2 or 3, wherein the pin member is sometimes retracted and removed from the engagement hole of the connection key receiving member.

  According to the automatic seismic unlocking door according to the invention of claim 1, the door is provided with a door portion that can be opened and closed on the door frame, and the door portion is normally closed by locking, and is opened by automatic unlocking in the event of an earthquake. The door side by the key member while being locked to the frame side receiving member provided in the door frame, the door side key receiving member provided in the door portion, and the frame side receiving member A composite key receiving member having a connecting key receiving member that connects the frame side receiving member and the door side key receiving member by locking with the key receiving member; A seismic unlocking device that engages the key receiving member and the actuating member and operates the actuating member by a signal from a seismic sensor that senses seismic vibration during an earthquake to release the engagement with the connecting key receiving member. The same simple, regardless of the type of doors such as sliding doors and hinged doors. Enables automatic unlocking by a mechanism, it is possible to provide an automatic feeling ShinHiraku Jotobira excellent very versatile.

  According to the automatic seismic unlocking door according to the second aspect of the invention, in the first aspect of the invention, the frame side receiving member has a locking wall portion having a frame locking portion with an opening formed in the lower portion. The door-side key receiving member includes an L-shaped key receiving main body, a bearing portion that is formed at one end of the key receiving main body and is pivotally supported on a peripheral edge of the door portion, A first key receiving portion that is formed at the other end of the key receiving body and can be locked by the key member, and the connecting key receiving member includes a U-shaped connecting main body and a connecting main body. A connection locking part that is formed on one side wall part and is locked to the frame locking part of the frame side receiving member, and an engagement hole that engages with the operation member formed in the connection locking part. A second key receiving portion that protrudes from the other side wall portion of the connecting body in the surface direction and can be locked by the key member together with the first key receiving portion. The connection locking portion locked to the frame locking portion of the frame side receiving member of the connection key receiving member and the first key receiving portion of the door side key receiving member together with the key member and the lock The locking wall portion of the frame side receiving member is interposed between the second key receiving portion, and the locking state of the connecting key receiving member is released in the event of an earthquake, and the connection is performed together with the door side key receiving member. Since the key receiving member rotates and the connection locking portion is removed from the opening of the frame side receiving member, the automatic opening of the frame side receiving member and the composite key receiving member is facilitated. The lock can be executed properly.

  According to the automatic seismic unlocking door according to the invention of claim 3, in the invention of claim 2, the connection locking part of the connection key receiving member has a chamfered part, so that the automatic unlocking is not performed. Is less likely to occur.

  According to the automatic seismic unlocking door according to the invention of claim 4, in the invention of claim 2 or 3, the rack member in which the actuating member of the seismic unlocking device operates in response to a signal from the seismic sensor, It consists of a pin member that is advanced and retracted by a gear device, and the pin member retracts and is removed from the engagement hole of the connecting key receiving member when the seismic signal is actuated. Unlocking can be performed appropriately.

It is a front view of the automatic seismic unlocking door which concerns on one Embodiment of this invention. It is a fragmentary perspective view showing the locked state of an automatic seismic unlocking door. It is a fragmentary perspective view showing the unlocking state of an automatic seismic unlocking door. It is a partial front view showing the locking state of an automatic seismic unlocking door. It is a partial front view showing the unlocking state of an automatic seismic unlocking door. It is a partial cross-sectional view showing the locked state of an automatic seismic unlocking door. It is a partial cross-sectional view showing the unlocking state of an automatic seismic unlocking door. It is a fragmentary longitudinal cross-section showing the locking state of an automatic seismic unlocking door. It is a fragmentary longitudinal cross-section showing the unlocking state of an automatic seismic unlocking door. It is a disassembled perspective view of a composite key receiving member. It is a conceptual diagram of the latching state of a frame side receiving member and a composite key receiving member. It is a front view of the automatic seismic unlocking door which concerns on other one Embodiment.

  An automatic seismic unlocking door 10 according to an embodiment of the present invention shown in FIG. 1 includes a door portion 15 installed in a door frame 11 so as to be openable and closable, and the door portion 15 is closed by locking in a normal time (normal time). It is a door that is in an open state due to automatic unlocking during an earthquake (when earthquake vibration occurs). In particular, the illustrated example is a sliding door type automatic seismic unlocking door 10 </ b> A in which a door 15 </ b> A that can be opened and closed is attached to the door frame 11 via hinges 12 and 12. In FIG. 1, reference numeral 1 is a fence composed of a wire mesh, 16 is a peripheral portion of the door portion 15, 17 is a wire mesh portion provided in the peripheral portion 16 of the door portion 15, and L is for locking the door portion 15. It is a key member made of a padlock.

  The automatic seismic unlocking door 10 is an emergency door that is automatically unlocked and allowed to pass when an earthquake occurs, and is installed mainly in emergency evacuation routes such as emergency passages and emergency stairs. For example, evacuation shelters and emergency exits for buildings such as schools and commercial facilities, evacuation towers in the bay area, emergency evacuation exits on expressways, the perimeter of parking lots, etc. It is suitably used as an emergency door such as a fence installed in a partitioned area.

  As shown in FIGS. 2 to 9, the automatic seismic unlocking door 10 of the present invention includes a frame-side receiving member 20 provided on the door frame 11, and a door-side key receiving member 40 provided on the door portion 15. A composite key receiving member 30 having a connecting key receiving member 50 that connects the frame side receiving member 20 and the door side key receiving member 40 is provided. The frame side receiving member 20 is normally engaged with the connecting key receiving member 50. A seismic unlocking device 60 is provided for joining and releasing the engagement with the connecting key receiving member 50 in the event of an earthquake. 2-9, the fence 1 and the wire mesh part 17 of the door part 15 are omitted.

  As shown in FIGS. 2, 3, 8 and 9, the frame-side receiving member 20 is a box-shaped member installed on the surface of the door frame 11, and has a frame locking portion in which an opening 22 is formed in the lower portion. A locking wall 25 having 21 is provided. In the frame side receiving member 20 of the embodiment, the locking wall portion 25 is a substantially U-shaped plate-like member in cross section (see FIGS. 6 and 7), and the lower portion is an opening between the door frame 11. A frame locking portion 21 is formed as a hollow portion 22 (see FIGS. 8 and 9). 6-9, the code | symbol 13 is the frame side hole drilled in the door frame 11 in which the frame side receiving member 20 was installed.

  As shown in FIG. 10, the composite key receiving member 30 includes a door side key receiving member 40 and a connecting key receiving member 50. 2 to 9, the composite key receiving member 30 is attached to the door portion 15 and normally connected to the frame side receiving member 20 to close the door portion 15 (FIGS. 2 and 4). , 6, and 8), and the connection with the frame side receiving member 20 is released during an earthquake, and the door portion 15 is opened (see FIGS. 3, 5, 7, and 9).

  As shown in FIGS. 2 to 7 and 10, the door-side key receiving member 40 is a member attached to the shaft member 18 provided on the peripheral edge portion 16 of the door portion 15, and is an L-shaped key receiving body as viewed from above. 41, a bearing portion 42 formed at one end of the key receiving body and pivotally supported by the shaft member 18, and a first key holder that is refracted at the other end of the key receiving body and can be locked by the key member L. Part 45. The first key receiving portion 45 is formed with a first key receiving hole 46 through which the latch portion L1 of the key member L is inserted.

  As shown in FIGS. 2, 6, and 8, the connecting key receiving member 50 is locked to the frame side receiving member 20 and is locked to the door side key receiving member 40 by the key member L. It is a member that connects the side key receiving member 40. As shown in FIGS. 6, 8, and 10, the connecting key receiving member 50 includes a longitudinal section in which one side wall portion 51 a and another side wall portion 51 b facing the one side wall portion 51 a are integrally formed by a refracting portion 51 c at the lower end. A connection body 51 having a substantially U shape in a plan view, a connection locking part 52 formed on one side wall 51a of the connection body 51 and locked to the frame locking part 21 of the frame-side receiving member 20, and a connection locking An engagement hole 53 formed in the portion 52 and a second key receiving portion 55 that protrudes outwardly from the other side wall portion 51 b of the connection main body 51 and can be locked by the key member L together with the first key receiving portion 45. And have. Further, chamfered portions 54 and 54 are formed on the upper portion of the coupling locking portion 52, and a second key receiving hole 56 through which the latch portion L1 of the key member L is inserted is formed in the second key receiving portion 55. Yes.

  In the connection key receiving member 50, as shown in FIG. 8, one side wall portion 51a (connection locking portion 52) of the connection main body 51 having a substantially U shape in a longitudinal section is formed by the frame side receiving member 20 (locking wall portion 25). The second key receiving portion 55 provided on the other side wall portion 51b is disposed outside the frame side receiving member 20 (the locking wall portion 25) while being locked to the frame locking portion 21 that is the inner side of the frame. Is attached to the door frame 11 side. As shown in FIGS. 6 and 8, the first key receiving portion 45 of the door side key receiving member 40 attached to the door portion 15 is locked to the second key receiving portion 55 outside the frame side receiving member 20. Locked by member L. Accordingly, the frame side receiving member 20 provided on the door frame 11 side and the door side key receiving member 40 provided on the door portion 15 side are connected via the connecting key receiving member 50. Therefore, the door frame 11 and the door part 15 are connected via the frame side receiving member 20 and the composite key receiving member 30 (the door side key receiving member 40 and the connecting key receiving member 50), and the door part 15 cannot be opened. Closed state.

  2, 3, 8, and 9, the seismic unlocking device 60 includes an operating member 61 that engages with the connecting key receiving member 50 and a seismic sensor 70 that senses seismic vibration during an earthquake. In this device, the actuating member 61 is actuated by a signal from the seismic sensor 70 to release the engagement with the connecting key receiving member 50. 2, 3, 8, and 9, reference numeral 67 is an operating side cover body that houses the operating member, 71 is a power supply unit such as a battery that supplies power to the seismic device 70, and 75 is the seismic device 70 or power supply It is a seismic-side cover body that houses the portion 71.

  As shown in FIGS. 8 and 9, the operating member 61 includes a rack member 62 that operates in response to a signal from the seismic machine 70, a gear device 63 that is driven to rotate by the operation of the rack member 62, and the rotation of the gear device 63. The pin member 65 is advanced and retracted by driving. In the gear device 63, a first gear 63 a that meshes with the rack member 62 and a second gear 63 b that meshes with the pin-side rack portion 66 of the pin member 65 are integrally provided on a single drive shaft 64. Yes. The pin member 65 is inserted into the frame side hole 13 of the door frame 11 so as to be able to advance and retreat, and is engaged with an engagement hole 53 formed in the connection locking portion 52 of the connection key receiving member 50.

  As shown in FIGS. 8 and 9, the seismic sensor 70 is a device that detects a predetermined amount of vibration when an earthquake occurs and transmits a signal for operating the rack member of the operating member 61. Etc. are used. In the seismic sensor of the embodiment, an operation signal is transmitted when vibration having a seismic intensity of 5 or higher is detected. When the seismic sensor 70 transmits an operation signal to the operation member 61, the pin member 65 engaged with the engagement hole 53 of the connection key receiving member 50 is retracted and removed from the engagement hole 53. The seismic intensity sensed by the seismic device is not particularly limited, and can be appropriately set to a desired seismic intensity.

  Here, the automatic seismic unlocking door 10 of the present invention is closed by normal locking (see FIGS. 2, 4, 6 and 8) and opened by automatic unlocking during an earthquake (FIGS. 3, 5, and 7). , 9) will be described taking as an example a swing door type automatic seismic unlocking door 10A. As shown in FIGS. 1, 6, 8, and 11 (a), the closed state by locking is the composite key receiving member 30 (door side key receiving member) of the frame side receiving member 20 of the door frame 11 and the door portion 15 (15 </ b> A). 40 and the connecting key receiving member 50) are connected to each other, and the door portion 15 cannot be opened. As shown in FIGS. 6, 8, and 11 (a), first, the connection key receiving member 50 of the composite key receiving member 30 is locked to the frame side receiving member 20 provided on the door frame 11. When the connection key receiving member 50 is locked to the frame side receiving member 20, the connection locking portion 52 of the connection key receiving member 50 is inserted into the frame locking portion 21 from the opening 22 of the frame side receiving member 20. At the same time, the pin member 65 of the operating member 61 of the seismic unlocking device 60 is inserted into the frame locking portion 21 from the frame side hole 13 of the door frame 11, and the pin member 65 is connected in the frame locking portion 21. The engagement portion 53 is engaged with the engagement hole 53. As a result, the connecting key receiving member 50 is supported by the pin member 65 of the operating member 61 and is locked at the frame locking portion 21 of the frame side receiving member 20 without falling off.

  In the connection key receiving member 50 thus locked to the frame side receiving member 20, the second key receiving portion 55 formed on the other side wall portion 51 b of the connection main body 51 is interposed via the refracting portion 51 c of the connection main body 51. The frame side receiving member 20 is disposed outside the locking wall portion 25. The door side key receiving member 40 pivotally supported on the peripheral edge portion 16 of the door portion 15 by the shaft member 18 with respect to the second key receiving portion 55 disposed outside the locking wall portion 25 is connected to the locking wall portion 25. It arrange | positions between the other side wall parts 51b of the connection main body 51. FIG. The key member L is latched on the first key receiving hole 46 of the first key receiving portion 45 of the door side key receiving member 40 and the second key receiving hole 56 of the second key receiving portion 55 of the connecting key receiving member 50. The part L1 is inserted and locked.

  Thereby, the frame side receiving member 20 on the door frame 11 side and the door side key receiving member 40 on the door portion 15 side are connected via the connecting key receiving member 50. At this time, the second locking key locked by the key member L together with the coupling locking portion 52 locked to the frame locking portion 21 of the frame side receiving member 20 and the first key receiving portion 45 of the door side key receiving member 40. A locking wall portion 25 of the frame side receiving member 20 is interposed between the receiving portion 55 and the receiving portion 55. Therefore, the operation | movement of the opening direction of the door part 15 is controlled, and the door part 15 will be in the closed state which cannot be opened.

  The unlocked state by automatic unlocking is as shown in FIGS. 7, 9, and 11 (b) when the seismic device 70 of the seismic unlocking device 60 detects seismic vibrations (for example, seismic intensity equivalent to 5 or higher). Then, the operation member 61 is operated to release the engagement with the connection key receiving member 50, and the connection between the frame side reception member 20 and the door side key reception member 40 by the connection key reception member 50 is released.

  In the operation of the operation member 61, as shown in FIG. 9, the rack member 62 is operated based on the operation signal from the seismic machine 70, whereby the first gear 63 a of the gear device 63 meshed with the rack member 62. Is rotated. At this time, since the second gear 63b of the gear device 63 is formed integrally with the first gear 63a via the drive shaft 64, the second gear 63b is also rotated with the rotation of the first gear 63a. Then, the rotation of the second gear 63b causes the pin member 65 engaged with the second gear 63b via the pin-side rack portion 66 to retreat.

  As shown in FIGS. 7, 9, and 11 (b), the pin member 65 is pulled out of the engagement hole 53 of the connection locking portion 52 by the backward movement of the pin member 65. Thereby, the connection key receiving member 50 loses the support by the pin member 65 and is released from the locked state, and is dropped from the opening 22 at the lower portion of the frame locking portion 21 by its own weight.

  At this time, as shown in FIGS. 3 and 5, the connection key receiving member 50 is connected by the second key receiving portion 55 being locked by the first key receiving portion 45 of the door side key receiving member 40 and the key member L. Therefore, it falls from the frame side receiving member 20 together with the door side key receiving member 40. Since the door-side key receiving member 40 is pivotally supported by the shaft member 18 of the door portion 15, the connecting key receiving member 50 has an arcuate shape (pendulum shape) with the shaft member 18 as the axis center together with the door-side key receiving member 40. The composite key receiving member 30 (the door side key receiving member 40 and the connecting key receiving member 50) is suspended from the shaft member 18 and is automatically unlocked. . When the connection key receiving member 50 is dropped, the chamfered portion 54 is formed in the connection locking portion 52, so that contact and hooking with the frame side receiving member 20 occur while the connection locking portion 52 is dropped. It becomes difficult and the trouble that automatic unlocking is not performed becomes difficult to occur. Therefore, the operation in the opening direction of the door portion 15 is not hindered, and the door portion 15 is in an open state that can be freely opened.

  In the automatic seismic unlocking door, the normal unlocking is performed by unlocking the key member and removing it from the first key receiving portion of the door side key receiving member and the second key receiving portion of the connecting key receiving member. Is done by. By removing the key member, the connecting key receiving member remains on the door frame side while being locked to the frame side receiving member, and the door side key receiving member can be separated, so that the door portion can be freely opened. .

  Next, an automatic seismic unlocking door 10 according to another embodiment shown in FIG. 12 is a sliding door type automatic door that is slidably moved with respect to a door frame 11 corresponding to a gate pillar and is provided with a door portion 15B that can be opened and closed. It is a seismic unlocking door 10B. The sliding door type automatic seismic unlocking door 10B is suitably used for a gate installed at a wide entrance of a school or a company. Reference numeral 2 in FIG. 12 denotes an outer wall portion such as an entrance / exit where the automatic seismic unlocking door 10B is installed, 17B denotes a lattice portion constituting the door portion 15, and 19 denotes a wheel portion for allowing the door portion 15 to slide. It is. In FIG. 12, the same reference numerals as those in the above-described embodiment represent the same configuration, and the description thereof is omitted.

  In this sliding door type automatic seismic unlocking door 10B, the closed state by normal locking functions similarly to the sliding door type automatic seismic unlocking door 10A. That is, as shown in FIGS. 2, 4, 6, and 8, when the operation member 61 of the seismic unlocking device 60 and the connection key receiving member 50 are engaged, the connection key receiving member 50 is changed to the frame side receiving member 20. The frame locking portion 21 is locked, and the frame side receiving member 20 of the door frame 11 and the door side key receiving member 40 of the door portion 15B are connected via the connecting key receiving member 50. Therefore, the door 15B is operated in the opening direction (sliding movement direction) depending on the locked state of the frame side receiving member 20 and the connecting key receiving member 50 and the locked state of the door side key receiving member 40 and the connecting key receiving member 50. Is restricted, and the sliding door type door portion 15B cannot be opened.

  And the open state by automatic unlocking of the automatic seismic unlocking door 10B functions in the same manner as the automatic door opening type automatic seismic unlocking door 10A. That is, as shown in FIGS. 3, 5, 7, and 9, the actuating member 61 is actuated when the seismic device 70 of the seismic unlocking device 60 senses seismic vibration (for example, a seismic intensity of 5 or higher). Thus, the engagement with the connection key receiving member 50 is released, and the connection key receiving member 50 is dropped from the opening 22 at the lower portion of the frame locking portion 21 by its own weight. Therefore, the connecting key receiving member 50 rotates together with the door side key receiving member 40 and is separated from the frame side receiving member 20, and the frame side receiving member 20 and the composite key receiving member 30 (the door side key receiving member 40 and the connecting key receiving member). The connection with the member 50) is released (automatic unlocking). Accordingly, the operation in the opening direction (sliding movement direction) of the door portion 15B is not hindered, and the door portion 15B can be freely opened.

  As illustrated and described above, the automatic seismic unlocking door of the present invention includes a door portion that can be opened and closed on the door frame, and is provided on the frame side receiving member provided on the door frame and the door portion. A composite key receiving member having a door side key receiving member and a connecting key receiving member for connecting the door side key receiving member and the frame side receiving member. And an actuating member are provided, and an earthquake-sensitive unlocking device is provided that senses seismic vibration during an earthquake and actuates the actuating member to release the engagement with the connecting key receiving member. Therefore, automatic unlocking can be performed by the same simple mechanism regardless of the type of door such as sliding doors and hinged doors, and an automatic seismic unlocking door that is extremely versatile can be provided.

  In particular, the frame-side receiving member has a locking wall portion having a frame locking portion having an opening formed in the lower portion, and the door-side key receiving member has an L-shaped key receiving body as viewed from above and a peripheral portion of the door portion. And a first key receiving portion that can be locked by a key member, and the connecting key receiving member is attached to one side wall portion of the U-shaped connecting body in a longitudinal sectional view of the frame side receiving member. A second key receiver that has a coupling locking portion formed with an engagement hole that is locked to the frame locking portion and engages with the operating member, and that can be locked by the key member together with the first key receiving portion on the other side wall portion. Part. Therefore, the frame side receiving member and the composite key receiving member including the door side key receiving member and the connecting key receiving member are each formed with a simple structure. In a normal state, the locking wall portion of the frame side receiving member is between the connection locking portion locked to the frame locking portion of the frame side receiving member and the second key receiving portion locked together with the first key receiving portion. Since the locking state of the connection key receiving member is released at the time of an earthquake and the connection key receiving member rotates together with the door side key receiving member, the connection locking portion is dropped from the opening of the frame side receiving member. Automatic unlocking can be appropriately executed while simplifying the frame side receiving member and the composite key receiving member.

  The operating member of the seismic unlocking device is composed of a rack member that operates in response to a signal from the seismic device and a pin member that is advanced and retracted by a gear device. Since it is extracted from the engagement hole of the receiving member, automatic unlocking can be appropriately executed by an operating member having a simple mechanism.

  As described above, the automatic seismic unlocking door of the present invention has an excellent versatility that enables automatic unlocking in the event of an earthquake corresponding to various doors such as sliding doors and hinged doors, while having the same mechanism. Therefore, for example, emergency shelters such as school shelters and emergency exits for buildings such as schools and commercial facilities, evacuation towers in the bay area, emergency exits on expressways, outer perimeters of parking lots, It is most suitable as a gate of a company.

DESCRIPTION OF SYMBOLS 1 Fence 2 Outer wall part 10 Automatic seismic unlocking door 10A Sliding door type door 10B Sliding door type door 11 Door frame 12 Hinge part 13 Frame side hole part 15,15A, 15B Door part 16 Peripheral part of door part 17 Wire mesh part 17B Lattice portion 18 Shaft member 19 Wheel portion 20 Frame side receiving member 21 Frame locking portion 22 Opening portion 25 Locking wall portion 30 Composite key receiving member 40 Door side key receiving member 41 Key receiving body 42 Bearing portion 45 First key receiving portion 46 1st key receiving hole 50 Connection key receiving member 51 Connection main body 51a One side wall part 51b of connection main body 51b Other side wall part of connection main body 51c Refraction part of connection main body 52 Connection locking part 53 Engagement hole 54 Chamfering part 55 Second Key receiving portion 56 Second key receiving hole 60 Seismic unlocking device 61 Actuating member 62 Rack member 63 Gear device 63a First gear 63b Second gear 64 Drive shaft 65 Pin member 66 Pin side rack portion 67 Acting side cover 70 KanShinki 71 power supply unit 75 KanShingawa cover L key member L1 latch portion

Claims (4)

A door part that is installed in a door frame so as to be openable and closable, and the door part is normally closed by locking, and is automatically opened by an automatic unlocking during an earthquake,
By locking the frame side receiving member provided in the door frame, the door side key receiving member provided in the door portion and the frame side receiving member, and locking the door side key receiving member by the key member. A composite key receiving member having a connecting key receiving member that connects the frame side receiving member and the door side key receiving member;
The frame side receiving member is engaged with the connecting key receiving member and the operating member in a normal state, and the operating member is operated by a signal from a seismic sensor that detects seismic vibration during an earthquake. An automatic seismic unlocking door characterized in that a seismic unlocking device for releasing the engagement with the door is provided. The frame side receiving member has a locking wall portion having a frame locking portion in which an opening is formed in the lower portion,
The door-side key receiving member includes an L-shaped key receiving main body, a bearing portion that is formed at one end of the key receiving main body and pivotally supported on a peripheral edge of the door portion, and the key A first key receiving portion formed on the other end of the receiving body and capable of being locked by the key member;
The connection key receiving member includes a connection main body having a U-shape in a longitudinal sectional view, a connection lock portion formed on one side wall portion of the connection main body and locked to the frame lock portion of the frame side support member, An engagement hole that engages with the actuating member formed in the coupling locking portion, and is provided on the other side wall portion of the coupling body so as to protrude in the surface direction, and by the key member together with the first key receiving portion. A second key holder that can be locked;
Normally, locking is performed by the key member together with the connection locking portion locked to the frame locking portion of the frame side receiving member of the connection key receiving member and the first key receiving portion of the door side key receiving member. The locking wall portion of the frame side receiving member is interposed between the second key receiving portion and
At the time of an earthquake, the locking state of the connection key receiving member is released, and the connection key receiving member rotates together with the door side key receiving member so that the connection locking portion is released from the opening of the frame side receiving member. The automatic seismic unlocking door according to claim 1, which is dropped.   The automatic seismic unlocking door according to claim 2, wherein the connection locking portion of the connection key receiving member has a chamfered portion.   The operating member of the seismic unlocking device comprises a rack member that operates in response to a signal from the seismic device and a pin member that is advanced and retracted by a gear device, and the pin member retracts when the seismic signal is operated. The automatic seismic unlocking door according to claim 2 or 3, wherein the automatic seismic unlocking door is removed from the engagement hole of the connecting key receiving member.

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