JP2009013744A - Strike against earthquake - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a strike against earthquake in which a strike plate mounted on the surface of a frame is surely displaceable in the direction of reducing a gap when the frame is deformed during an earthquake. <P>SOLUTION: This strike 100 against earthquake comprises: the strike plate 21 mounted on the surface of the frame at the opening of a building; a strike box 23 having a recessed box part 39 recessed in the surface of the frame and secured to the surface of the frame; a movable core member secured to the strike plate 21 and loosely fitted to the recessed box part 39; a pin-engaged hole formed at both sides of the movable core member; a slip-off restraining pin secured to both sides of the recessed box part 39, loosely fitted to the pin-engaged hole, and restraining the slipping-off of the movable core member from the recessed box part 39 and enabling the movement of the movable core member in the direction of reducing the gap formed between the movable core member and a bottom plate part; and the gap formed between the strike plate and the surface of the frame when the strike plate 21 is raised from the surface of the frame. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an anti-seismic strike in which a strike plate attached with a gap on the surface of a frame can be surely displaced in a direction of reducing the gap when the frame is deformed due to an earthquake or the like.

  In general, in a condominium or the like, a strike is attached to a vertical frame of a building opening, and a dead bolt of a locking / unlocking device provided on the door side is moved forward and backward to lock and unlock. In recent years, it has been recommended that a predetermined clearance (about 13 mm) be provided between the door and the vertical frame so that the door can be reliably opened in the event of a disaster such as an earthquake to enable evacuation outside the room. That is, when an earthquake occurs, the wall around the vertical frame is destroyed, and the vertical frame is deformed to generate an external force that comes into contact with the door. Therefore, the strike ensures the clearance when an external force exceeding a predetermined level is applied. It is desirable to be able to deform in the direction. As described above, when an external force exceeding a predetermined level is generated, if the strike is deformed, a predetermined gap can be secured between the vertical frame and the door, and the dead bolt on the door side that is locked in the locking hole of the strike. Since the door can be detached, the opening of the door is compensated and the evacuation to the outside becomes easy.

  As this type of strike, for example, a door strike disclosed in Patent Document 1 is known. As shown in FIG. 9, the door strike 1 includes a main body wall portion 5 in which a dead bolt locking hole 3 is formed, connecting pieces 7, 7 integrally provided on both upper and lower sides, and these connecting pieces 7. And is provided with fixing pieces 11 and 11 fixed to the inner side surface of the vertical frame 9 and formed by pressing a steel plate. Then, each fixing piece 11 is fixed to the inner surface of the vertical frame 9 with a fixing screw or the like, and the dead bolt on the door side is engaged with or disengaged from the locking hole 3 of the main body wall portion 5 to perform locking or unlocking.

According to this door strike 1, when an earthquake occurs, if the wall around the vertical frame is destroyed and the vertical frame is deformed to generate an external force that comes into contact with the door, the main body wall portion 5 is locked, for example, at the door mouth. It is possible to avoid a situation in which the door is pressed against the box front panel, and the connecting pieces 7 and 7 are crushed in a direction in which the inclination angle becomes small, and the door strike 1 comes into contact with the door with a large force and the door cannot be opened. Such an effect can be similarly obtained even in the case of the imposition lock type in which the door strike 1 is attached to the indoor surface of the door.
JP-A-11-62337

  However, the above-described conventional door strike 1 is a sheet metal member obtained by bending or pressing a steel plate and raising the main body wall portion 5 by the inclined connecting pieces 7 and 7, so that the side surface becomes the opening 13 and used. There was a problem of giving the person a soft feeling and poor appearance. Such poor appearance is particularly noticeable in the case of the imposition lock type in which the door strike 1 is attached to the interior surface of the door. On the other hand, if the side wall portion that closes the opening 13 is bent by press working, the opening 13 is covered and the dead bolt or the like is not exposed, but the strength is increased by the side wall portion, and the door strike 1 is deformed. Invited new problems that would be difficult. In addition, when an external force in the direction of crushing the strike for the door is applied, a structure in which a notch that allows the side wall portion formed by bending to enter is provided in the troyoke or the like is considered, but the structure becomes complicated, When the deformation in the irregular direction occurs, the side wall portion cannot enter the notch, and it is feared that the door strike 1 is hardly deformed after all.

  The present invention has been made in view of the above situation, and provides an anti-seismic strike in which a raised strike plate can be surely displaced when a frame is deformed due to an earthquake or the like, and thus has a reliable door opening function in the event of a disaster. The purpose is to improve performance.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The anti-seismic strike according to claim 1 of the present invention comprises a strike plate 21 provided with a strike hole 37 into which a dead bolt that is attached to a frame surface 33 of a building opening and protrudes from a door enters;
Troyoke 23 which is covered with the strike plate 21 and has a concave box 39 which is recessed in the frame surface 33 and is fixed to the frame surface 33 by upper and lower fixing rods 41 and 43;
A movable core member 25 fixed to the strike plate 21 and loosely fitted in the concave box portion 39;
Pin engaging holes 27 drilled on both sides of the movable core member 25;
The movable core member 25 is fixed to both side portions of the concave box portion 39 and loosely fitted into the pin engaging hole 27 to restrict the movable core member 25 from falling out of the concave box portion 39 and the movable core member 25 and the concave box portion. A drop-out restricting pin 29 that enables movement of the movable core member 25 in a direction to shrink at least the receding gap 36 formed between the bottom plate portion 39a of
A gap 35 formed between the strike plate 21 and the frame surface 33 by the strike plate 21 rising from the frame surface 33;
It is characterized by comprising.

  In this anti-seismic strike, the vertical frame is deformed to generate an external force in the direction of contact with the door, and when the strike plate 21 is pressed against the door mouth, for example, the frame surface 33 has a gap 35 and is lifted and attached. The strike plate 21 is displaced in a direction to reduce the gap 35.

  The anti-seismic strike according to claim 2 is engaged with the movable core member 25 and is inserted into the retreat gap 36 so that the strike plate 21 is lifted and can be deformed in a direction in which the retreat gap 36 is contracted. The compression support member 31 is provided.

  In this anti-seismic strike, the compression support member 31 is inserted into the retreat gap 36, so that the strike plate 21 rises, and the gap 35 is held between the frame surface 33 and the strike plate 21. When the vertical frame is deformed and an external force in the direction of contact with the door is generated and the strike plate 21 is pressed against the door mouth, for example, the compression support member 31 is crushed, and the strike plate 21 is displaced in a direction to reduce the gap 35. .

  The anti-seismic strike according to claim 3 is characterized in that an inclined portion 71 bent in a direction to reduce the gap 35 is provided on the upper and lower edges of the strike plate 21.

  In this anti-seismic strike, inclined portions 71 that are bent in the direction of reducing the gap 35 are provided at the upper and lower edges of the strike plate 21, and the gap 35 is formed while securing the gap 35 between the strike plate 21 and the frame surface 33. It looks small. Further, the displacement of the strike plate 21 in the direction in which the receding gap 36 is shortened is allowed by the deformation of the inclined portion 71.

  In the anti-seismic strike according to claim 4, an impact seat portion 75 covering the gap 35 is bent substantially perpendicularly to the strike plate 21 at a vertical edge portion 73 of the strike plate 21 on the contact side of the dead bolt. It is characterized by being formed.

  In this anti-seismic strike, the strike plate 21 and the frame surface are formed at the vertical edge 73 of the strike plate 21 on the latch bolt contact side so as to be bent around the frame side surface and cover the gap 35. The gap 35 is covered while the gap 35 is secured to 33.

The anti-seismic strike according to claim 5, wherein the compression support member 31 is made of a resin material,
A base end portion provided with a locking claw portion 31b engaged with a locking portion 53a of the movable core member 25 disposed opposite to the bottom plate portion 39a of the Troyoke 23;
A leg portion extending in a bifurcated shape in the form of an open leg, extending obliquely to the bottom plate portion 39a of the troyoke 23, and being disposed in the receding gap 36,
Each tip 31a is provided with a narrow and thin hook-like protrusion 32 formed on the tip 31a, and the curved-shaped part 32a at the tip of the hook-like protrusion 32 abuts on the Troyoke bottom plate 39a,
The movable core member 25 is movably held in a direction in which the receding gap 36 is contracted, and the strike plate 21 is floated from the frame surface 33 to maintain the gap 35.

  In this anti-seismic strike, the compression support member 31 disposed in the receding gap 36 is compressed and deformed by providing a hook-like protrusion 32 that is further extended at the tip 31a that is formed in an open leg-like manner. The gap 35 between the strike plate 21 and the frame surface 33 is maintained, and the movable core member 25 can be moved in a direction to reduce the backward gap 36 without hindering movement of the movable core member 25 when deformation occurs. According to the compression support member 31, since the contact with the Troyoke bottom plate portion 39a is the curved surface portion 32a at the tip of the bowl-shaped member 32, it is in a line contact state and is supported while reducing the contact area. In addition, sliding is easy. Further, the compression support member 31 is made of a resin material, and can be integrally formed with a homogeneous material.

According to the anti-seismic strike according to claim 1 of the present invention, a strike plate attached to the surface of the frame, a troy having a concave box portion, a movable core member fixed to the strike plate and loosely fitted in the concave box portion, , Pin engagement holes drilled on both sides of the movable core member, drop-off restricting pins fixed on both sides of the concave box, and strike plate formed on the strike plate and the frame surface by rising from the frame surface Since the external frame is deformed and an external force in the direction of contacting the door is generated, and the strike plate is pressed against the door mouth, for example, the movable core member moves in a direction to reduce the receding gap, The strike plate moves and displaces smoothly in the direction of reducing the gap. As a result, the reliability of the door opening function at the time of disaster can be improved.
In addition, since Troyoke is covered with the strike plate, the appearance is not inferior, and it is possible to cover the mechanism part such as the movable core member.

  According to the anti-seismic strike of claim 2, there is provided a compression support member that is engaged with the movable core member and is inserted into the retreating gap so that the strike plate is lifted and can be deformed in a direction to reduce the retreating gap. Therefore, the strike plate can be levitated and a gap can be formed between the frame surface and the strike plate. Further, when the vertical frame is deformed to generate an external force in a direction in contact with the door and the strike plate is pressed against the door mouth, for example, the compression support member is crushed and the strike plate can be displaced in the gap reduction direction.

  According to the anti-seismic strike according to claim 3, since the inclined portions bent in the direction of reducing the gap are provided at the upper and lower edges of the strike plate, the gap is secured while ensuring the gap between the strike plate and the frame surface. It is possible to improve the appearance by reducing the width of the strike plate and to allow the displacement of the strike plate in the direction of reducing the receding gap by the deformation of the inclined portion.

  According to the anti-seismic strike of claim 4, since the contact seat portion covering the gap is formed on the vertical edge portion of the strike plate on the dead bolt contact side, the clearance is secured between the strike plate and the frame surface. The appearance can be improved by covering the gap, and at the same time, the contact portion of the dead bolt can be formed integrally with the strike plate.

According to the anti-seismic strike described in claim 5, since the compression support member is made of a resin material, it can be integrally formed with a homogeneous material, and variations in resistance to compression deformation can be eliminated as compared with the same member made of sheet metal material.
Further, in this anti-seismic strike, the tip portion that is formed to extend in a bifurcated manner in an open leg shape is provided with a hook-like projection that is further extended, so that the compression support member disposed in the receding gap is compressed and deformed. It is easy to break, and while maintaining the gap between the strike plate and the surface of the frame, it is possible to move in the direction of reducing the receding gap without hindering movement of the movable core member when deformation occurs. Further, according to this compression support member, since the contact with the Troyoke bottom plate portion is a curved portion at the tip of the bowl-shaped member, it is in a line contact state, is supported while reducing the contact area, and is slid by deformation. It is easy to move, does not hinder the movement of the movable core member, and can hold the gap between the strike plate and the surface of the frame by the elastic repulsive force of these hook-like members, and the appearance of the strike plate in the normal state The function as a strike plate is not diminished without lowering.

Hereinafter, preferred embodiments of the anti-seismic strike according to the present invention will be described in detail with reference to the drawings.
1 is an external perspective view of the anti-seismic strike according to the present invention, FIG. 2 is a front view of the anti-seismic strike shown in FIG. 1, and FIG. 3 is a front view of the anti-seismic strike with the strike plate removed, FIG. 4 is a cross-sectional view taken along line AA of FIG. 2, FIG. 5 is a cross-sectional view taken along line BB of FIG. 4, and FIG. 6 is a perspective view of the compression support member.
The anti-seismic strike 100 according to the present embodiment includes a strike plate 21, a trolley 23, a movable core member 25 (see FIG. 4), a pin engagement hole 27, a drop-out restricting pin 29, and a compression support member 31. It has as a major component requirement.

  The strike plate 21 is attached with a gap 35 on a frame surface 33 of a building opening (not shown). As will be described later, the gap 35 is formed by the movable core member 25 fixed to the strike plate 21 being supported by the trowel 23 via the compression support member 31. A strike hole 37 is formed in the strike plate 21, and a dead bolt protruding from a door (not shown) enters the strike hole 37.

  The Troyoke 23 has a concave box part 39 at the center, and the concave box part 39 is recessed in the frame surface 33. Fixing rods 41 and 43 shown in FIG. 3 are formed above and below the concave box 39, and the fixing rods 41 and 43 are fixed to the frame surface 33 by screws 47 and 47 inserted through the fixing holes 45 and 45. That is, the Troyoke 23 in which the fixing rods 41 and 43 are fixed to the frame surface 33 opens the opening 49 of the concave box portion 39 in substantially the same plane as the frame surface 33 as shown in FIG. The opening 49 is covered by the strike plate 21, and the inside is exposed only through the strike hole 37 as shown in FIG. 1.

  As shown in FIG. 4, the movable core member 25 is fixed to the back side of the strike plate 21 via a spacer plate 51. U-shaped locking portions 53 and 53 having openings facing each other are formed above and below the movable core member 25, and the locking portions 53 and 53 engage with the compression support members 31 and 31. The spacer plate 51 and the movable core member 25 form an opening 55 shown in FIG. 3 that coincides with the strike hole 37. Fixing plates 57 and 57 parallel to the strike plate 21 are formed on the locking portions 53 and 53, and the fixing plates 57 and 57 have female screws 59 and 59. The strike plate 21, the spacer plate 51, and the movable core member 25 are integrally fixed by screwing screws 61, 61 inserted through the strike plate 21 into female screws 59, 59. The movable core member 25 that is integrally fixed to the strike plate 21 is loosely fitted in the concave box portion 39 of the troyoke 23.

  The movable core member 25 has pin engagement holes 27 and 27 formed on both side portions of the locking portions 53 and 53. Therefore, as shown in FIG. 3, the pin engagement holes 27 are formed in a total of four locations, top, bottom, left and right. The pin engaging hole 27 can move the drop-off restricting pin 29 in the up-down and right directions in FIG. 4, and the movable core member 25 can move substantially with respect to the drop-off restricting pin 29 fixed to the trowel 23. It is formed in a rectangular shape. Here, the reason why the drop-out restricting pin 29 is in contact with the left edge portion 27a of the pin engaging hole 27 shown in FIG. 4 is to restrict the movable core member 25 and the strike plate 21 from jumping out (dropping out).

  The drop-out restricting pins 29 have their heads fixed to the upper and lower sides of the concave box 39 in the troyoke 23. That is, the four drop-out restricting pins 29 are fixed. As described above, the drop-out restricting pin 29 with the fixed head is arranged in the pin engaging hole 27 so that the movable core member 25 can be moved up and down and back, and the drop-off restricting pin 29 can be removed from the troyoke 23. It is regulated. As shown in FIG. 4, a receding gap 36 is formed between the locking portions 53, 53 of the movable core member 25 and the bottom plate portion 39 a of the trolley 23. The movable core member 25 can be retracted in the direction in which the retracting gap 36 is reduced. That is, the drop-off restricting pin 29 holds the movable core member 25 so as to be movable in the direction in which the retreat gap 36 is shortened.

  The compression support member 31 extends the distal end portion 31 a obliquely in the abutting direction to the bottom plate portion 39 a of the troyoke 23, and the locking claw portion 31 b of the proximal end portion to the locking piece 53 a of the locking portions 53, 53. It is attached. In other words, the compression support member 31 is engaged with the movable core member 25, abuts against the bottom plate portion 39 a, and can be deformed in a direction in which the receding gap 36 is reduced. The compression support member 31 is preferably made of a resin material such as polyacetal resin (trade name: Duracon). Since the compression support member 31 is made of a resin material, the compression support member 31 can be integrally formed of a homogeneous material, and variations in the resistance to compressive deformation can be eliminated as compared with the same member of a sheet metal material, such as a plate spring or a coil spring. Further, the compression support member 31 has a spring property from the material, and the tip end portion 31a is formed in an open leg shape so as to be bifurcated, and each tip portion has a hook shape formed to be narrow and thin. The protrusion 32 is extended. The tip of each hook-like protrusion 32 forms a curved surface portion 32a, that is, the tip edge is formed in an R shape and is in a line contact state with the bottom plate portion 39a, and the contact area is set small. From this, each front-end | tip part 31a is easy to slide to the opening direction, and can deform | transform smoothly. These hook-shaped protrusions 32 maintain the gap 35 between the strike plate 21 and the frame surface 33 by its elastic repulsive force, and can function as the strike plate 21 without deteriorating the appearance of the strike plate 21 in a normal state. Without being reduced, the movable core member 25 can be moved in a direction in which the retracting gap 36 is reduced without hindering movement of the movable core member 25 when deformation occurs.

  Longitudinal support members 63 and 63 are provided at the upper and lower portions of the movable core member 25. The vertical support member 63 has a base end 63 a fixed to the movable core member 25 by a screw 65, and a distal end 63 b abutting against the inner upper surface 67 and the inner lower surface 69 of the concave box portion 39 to make the movable core member 25 concave. It is arranged at a predetermined vertical position in the box part 39. As a result, when the gap between the upper and lower portions of the movable core member 25 and the concave box 39 changes, the longitudinal support members 63 and 63 are deformed to absorb the increase and decrease of the gap. Therefore, the vertical support member 63 prevents the movable core member 25 from being displaced in the backward direction due to the movable core member 25 being pressed against the inner upper surface 67 or the inner lower surface 69 of the concave box portion 39.

  On the upper and lower edges of the strike plate 21, inclined portions 71 are provided that are bent in a direction to reduce the gap 35. Thereby, while ensuring the gap 35 between the strike plate 21 and the frame surface 33, the gap 35 can be reduced to improve the appearance, and the displacement of the strike plate 21 in the direction in which the receding gap 35 is reduced is also reduced in the inclined portion 71. Allowable by deformation.

  In addition, a contact seat 75 is provided on the vertical edge 73 of the strike plate 21 on the contact side of the latch bolt. As shown in FIG. 5, the contact seat portion 75 is formed by being bent substantially perpendicularly to the strike plate 21 and covers the gap 35. Thereby, it is possible to improve the appearance by covering the gap 35 while securing the gap 35 between the strike plate 21 and the frame surface 33. At the same time, the contact portion of the latch bolt can be formed integrally with the strike plate 21.

Next, the action of the above-described anti-seismic strike will be described.
FIG. 7 is an operation explanatory diagram in which the strike plate is displaced in the direction of reducing the receding gap, and FIG. 8 is an operation explanatory diagram in which the strike plate is displaced in the direction of reducing the receding gap and downward.
The frame to which the anti-seismic strike 100 is attached is deformed by an earthquake or the like, and a deformation that narrows the distance between the strike plate 21 and a door mouth (not shown) is generated, and the pressure in the direction in which the strike plate 21 approaches the frame surface 33 is generated. First, the hook-like protrusion 32 of the distal end portion 31a of the compression support member 31 is deformed, that is, the hook-like protrusion 32 that is obliquely in contact with the bottom plate portion 39a is further deformed in the direction of falling and approaching. As a result, the strike plate 21 approaches the frame surface 33.

  In this state, the gap 35 disappears and the inclined portion 71 comes into contact with the frame surface 33. Further, when pressure in the direction approaching the frame surface 33 is applied to the strike plate 21, the compression support member 31 is crushed in the open state as shown in FIG. 7, and at the same time, the inclined portion 71 of the strike plate has an inclination angle. Deform in the direction to make it smaller. This movement is possible until the back surface of the strike plate 21 contacts the frame surface 33. That is, the strike plate 21 can move by the distance of the gap 35. Simultaneously with the retraction of the movable core member 25, the upper and lower vertical support members 63, 63 slide the tip 63b on the inner upper surface 67 and the inner lower surface 69 of the concave box portion 39. As a result, a gap s is formed between the drop-out restricting pin 29 and the left edge portion 27 a of the pin engaging hole 27.

  Further, when relative deformation in the vertical direction is applied to the troyoke 23 and the strike plate 21, for example, in the example shown in FIG. 8, in the direction in which the movable core member 25 is lowered, the lower vertical support member 63 is deformed and the upper The tip 63 b of the vertical support member 63 is separated from the inner upper surface 67, and the vertical relative displacement generated in the trowel 23 and the movable core member 25 is absorbed. That is, there is no pressure contact.

  Therefore, according to the anti-seismic strike 100 according to the present embodiment, the strike plate 21 attached to the frame surface 33, the trolley 23 having the concave box portion 39, and the strike plate 21 are fixedly fitted to the concave box portion 39. The movable core member 25, the pin engaging holes 27 formed on both sides of the movable core member 25, the drop-out restricting pins 29 fixed to both sides of the concave box 39, and the movable core member 25. Since the compression support member 31 and the gap 35 formed on the strike plate 21 and the frame surface 33 are provided, an external force is generated in a direction in which the vertical frame is deformed to come into contact with the door. When pressed against the door mouth, the compression support member 31 is crushed, and the strike plate 21 that is floated and attached to the frame surface 33 with the gap 35 is displaced in a direction to reduce the gap 35. As a result, the strike plate 21 can be smoothly displaced, and the reliability of the door opening function at the time of disaster can be improved. In addition, since the compression support member 31 is configured to contact the Troyoke bottom plate portion 39a as the curved surface portion 32a of the hook-shaped protrusion 32, the contact state with each other is a line contact, and the contact area is set to be small. Therefore, it slides easily in the displacement direction, and the compression support member 31 is not deformed by opening, is crushed, and does not prevent the strike plate 21 from being displaced.

It is an external appearance perspective view of the anti-seismic strike which concerns on this invention which concerns on this invention. It is a front view of the anti-seismic strike shown in FIG. It is a front view of the anti-seismic strike which removed the strike board. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a perspective view of a compression support member. It is action explanatory drawing which the strike plate displaced to the direction which shrinks a retreat gap | interval. It is action explanatory drawing which the strike plate displaced to the direction which shrinks a receding gap, and a downward direction. It is a schematic perspective view of the conventional anti-seismic strike.

Explanation of symbols

DESCRIPTION OF SYMBOLS 21 ... Strike board 23 ... Troyoke 25 ... Movable core member 27 ... Pin engaging hole 29 ... Drop-off restricting pin 31 ... Compression support member 31a ... Tip part 31b ... Locking claw part 32 ... Spear-like member 32a ... Curved surface part 33 ... Frame surface 35 ... Gap 36 ... Retraction gap 37 ... Strike hole 39 ... Recessed box part 39a ... Bottom plate part 41, 43 ... Fixed rod 71 ... Inclined part 73 ... Vertical edge part 75 ... Contact seat part 100 ... Anti-seismic strike

Claims (5)

A strike plate that is attached to the surface of the frame of the building opening and has a strike hole in which a dead bolt that protrudes from the door enters; and
Troyoke that is covered with the strike plate and has a concave box portion that is recessed on the surface of the frame and is fixed to the surface of the frame by upper and lower fixing rods;
A movable core member fixed to the strike plate and loosely fitted in the concave box portion;
Pin engagement holes drilled on both sides of the movable core member;
The movable core member and the bottom plate portion of the concave box portion are fixed to both side portions of the concave box portion and loosely fitted into the pin engagement holes to restrict the movable core member from falling off the concave box portion. A drop-off restricting pin that enables movement of the movable core member in a direction to reduce at least the receding gap formed therebetween,
A gap formed between the strike plate and the frame surface by the strike plate rising from the frame surface;
Anti-seismic strike characterized by comprising   The compression support member, which is engaged with the movable core member and is sandwiched in the retreat gap, floats the strike plate and can be deformed in a direction to reduce the retreat gap. 1 Anti-seismic strike.   The anti-seismic strike according to claim 1 or 2, wherein an inclined portion bent in a direction to reduce the gap is provided at upper and lower edge portions of the strike plate.   The striking seat portion covering the gap is formed by bending the striking plate substantially perpendicularly to the strike plate at a vertical edge portion of the strike plate on a side where the dead bolt abuts. 3. Anti-seismic strike as described in any one of 3 above. The compression support member is made of a resin material,
A base end portion having a locking claw portion to be engaged with a locking portion of the movable core member disposed to face the bottom plate portion of the Troyoke;
A leg extending in a bifurcated leg shape, extending obliquely to the bottom plate portion of the troyoke and having a tip portion disposed in the receding gap;
A narrow and thin hook-like projection is formed at each tip portion, and the curved portion at the tip of the hook-like projection contacts the Troyoke bottom plate portion,
5. The movable core member is movably held in a direction in which the receding gap is shortened, and the strike plate is lifted from the surface of the frame to maintain the gap. Anti-seismic strike described in one.

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