JP4919835B2 - Door lock bracket - Google Patents

Description

  The present invention relates to a lock bracket for a door that is suitable for an earthquake.

  Patent Document 1 is proposed by the applicant. The patent document 1 discloses that “a troyo portion having a notch portion on the left and right side walls and fixed in a fitted state to the door frame, a holding (engaging) pin that engages with the notch portion, and at least a troyoque portion. A frame-shaped movable core that is set in a loosely fitted state by setting a gap between the inner wall surface at the back and the upper and lower opposing inner walls, and the movable core so as to cover the front side of the troyoke and the movable core A cover plate that is attached, and when an earthquake occurs, the movable core moves back and forth in a multidirectional direction from the rear gap or the upper and lower gaps in the trolley as the inclined upper and lower ends of the cover plate are deformed "Receiver bracket" is described.

  In addition, Patent Document 2 is proposed by the applicant as well as Patent Document 1. This patent document 2 describes a known technique that is a prerequisite of the present invention. That is, “a movable core that is fitted in a loosely fitted state by setting a gap between the troyoke fixed to the door frame in a fitted state and the inner wall surface at the back of this troyoke and the upper and lower opposing inner walls, The cover plate attached to the movable core so as to cover the front side of the troyoke and the movable core, and the base end side are respectively fixed to the upper and lower outer wall surfaces of the movable core or the upper and lower inner wall surfaces of the troyoke via a fixing tool, The tip side includes a holding plate disposed in the upper and lower gaps so as to contact the upper and lower inner wall surfaces of the troyoke or the upper and lower outer wall surfaces of the movable core, respectively. On the front end side, there is described a door lock bracket that is displaced in accordance with the vertical movement of the movable core.

  However, Patent Document 2 has a problem that the amount of movement of the movable core in the vertical direction cannot be sufficiently obtained. The reason (cause) comes from the shape (configuration) of the holding plate and the holding Some came from a combination of plates and fasteners.

  That is, with respect to the shape of the holding plate, since the entire shape of the holding plate fixed by the fixing tool is a fishhook shape, there is a drawback that the upper and lower gaps cannot be set sufficiently.

  In addition, the tip end side of the elastic plate, which is bent from the base end portion of the end plate shape into a hook shape, has a bowl shape.For example, the distance between the outer wall surface on the movable core and the inner wall surface on the troyoke It was not possible to provide it for a long time.

In addition, regarding the combination of the holding plate and the fixing tool, the head of the fixing tool protrudes from the upper surface of the end plate-like base end portion, so depending on the moving direction of the movable core and how the holding plate is crushed, Since the hook-shaped tip of the holding plate may cover the head of the fixing tool, the amount of vertical movement of the movable core is reduced by the thickness of the holding plate. In particular, when the head of the fixing tool is bulging (if it is not flat), the amount of vertical movement of the movable core is further reduced.
JP 2004-36270 A JP 2006-161415 A

  The intended purpose of the present invention is to eliminate the problem of Patent Document 2 (increase the amount of movement of the movable core in the Y-axis direction). The second object is that the holding plate that supports the movable core in the loosely fitted state with respect to the recess of the troy can not be easily detached. The third object is that the movable core can be held in a well-balanced manner when the holding piece has a rigid function that can withstand the weight of the movable core and does not deform in a normal state.

  The door lock bracket of the present invention has a troyoke fixed to the door frame in a fitted state, a gap is set in the troyoke, and is located in the vacant part and supports vertical movement of the movable core. In the door lock bracket having the movable core that is fitted in the loosely fitted state via the displacement holding plate, the holding plate is fixed to the troyoke or the movable core via the fixing tool. A relief notch that comprises a plate-like base end portion and a tongue-like projecting piece portion that is connected to the base end portion via an elastic bent portion, and receives the head of the fixing tool in the tongue-like projecting piece portion. Is formed.

  Further, the door lock bracket of the present invention is loosely fitted by setting a gap between the troyoke fixed to the door frame in a fitted state, the inner wall surface at the back of the troyoke and the upper and lower opposing inner walls. The movable core fitted in the mating state, the cover plate attached to the movable core so as to cover the front surface of the troyoke and the movable core, and the base end side fixed to the upper and lower outer wall surfaces of the movable core or the upper and lower inner wall surfaces of the troyoke On the other hand, the tip end side is provided with a holding plate disposed in the upper and lower gaps so as to abut on the upper and lower inner wall surfaces of the troyoke or the upper and lower outer wall surfaces of the movable core, respectively. In the event of an earthquake, the front end side of the holding plate is a door lock bracket that is displaced according to the vertical movement of the movable core, and the holding plate has an end plate-like base end portion, Elastic bent from the base end It consists of a tongue-like protrusion portion which continuously arranged over, and characterized by forming a notch for escape accept the head of the fastener to the protrusion portion.

  Here, “elasticity” of the elastic bent portion includes both the elastic displacement function that is elastically displaced and becomes a collapsed shape as it is, and the elastic displacement return function that always tries to return to the original state. .

(1) When an earthquake occurs, the movable core moves in the vertical direction as in the embodiment described in Patent Document 2, but the movable core holding plate of this embodiment has an end plate-like base end portion and a base plate. It consists of a tongue-like projecting piece that is connected from the end via an elastic bent part, and a relief notch for receiving the head of the fixing tool is formed on the projecting piece. The amount of movement of the movable core in the Y-axis direction can be increased by a corresponding distance.
(2) Further, the elastic bent portion of the holding plate is bent in a direction approaching the upper surface of the base end portion, and is bent in a direction that is continuous with the first bent portion and away from the upper surface of the base end portion. In the case where the second bent portion is provided and the elastic bent portion is displaced to the maximum, the inner wall surface of the projecting piece portion overlaps the upper surface of the base end portion, so that the effect (1) can be achieved reliably. Can do.
(3) Furthermore, when the holding plate is based on one point “center point 0” on the outer surface corresponding to the connecting portion between the base end portion and the elastic bent portion, the tongue-like projecting piece portion is the end plate. Since it is longer than the base end portion of the shape, the distance between the outer wall surface on the movable core and the inner wall surface on the trojoke can be provided longer than the embodiment described in Patent Document 2.
(4) In addition, the tip of the protruding piece of the holding plate is bent to protrude from the non-connected end face on the opposite side of the connecting portion of the tongue-like protruding piece when the elastic bent portion is displaced to the maximum. In the normal use, this abutting tip portion abuts on the upper and lower inner wall surfaces of the troyoke or the upper and lower outer wall surfaces of the movable core, so that the effect (3) is sufficiently exhibited. In addition, the holding plate is easily crushed when subjected to a strong external force in the vertical direction.
(5) When the thickness of the head of the fixing tool and the thickness of the tongue-like protrusion are substantially the same, the amount of vertical movement of the movable core is reduced due to the head of the fixing tool. There is nothing.

  Hereinafter, an embodiment will be described with reference to FIGS.

(1) Implementation Environment First, with reference to FIG. 1 and FIG. 2, an environmental member for implementation of the present invention will be described. 1 is a door frame, 2 is a trolley that is fixed to the door frame in a fitted state, 3 is a loose fit, and at least a gap is set between the inner wall at the back of the trolley and the upper and lower opposing inner walls. The frame-shaped movable core 4 fitted in the combined state is indirectly or directly on the front wall of the door frame 1 through the movable core 3 so as to cover the front side of the troyoke 2 and the movable core 3 in whole or in part. A cover plate attached in a contact state, 5 is a door provided to be openable / closable with respect to the door frame 1, 6 is a first locking piece (a dead bolt here) of a lock provided on the door side, and 7 is a dead bolt 6. And a second locking piece (here, sickle piece) of the lock provided in parallel. The sickle piece 7 is provided to enhance the crime prevention function. When locked, the sickle piece 7 is placed on the inner wall surface of the front wall 3a of the movable core 3 in a state of overlapping with the dead bolt 6 in the horizontal direction as shown in FIG. On the other hand, the tip portion can be engaged.

  FIG. 1 shows a fixed combination of a trowel 2 having a recess in the door frame 1, a frame-shaped movable core 3, a cover plate 4, and a pair of upper and lower holding plates 8, 8 which are novel matters of the present invention. The normal use state when attached to is shown.

(2) Door frame 1
The constituent members of the lock receiver will be described in order with reference to FIG. First, the simplified door frame 1 will be described. Only a part of the rectangular tube portion 10 facing the vertical end surface of the door 5 is shown. 10a is a front wall, 10b is a back wall, 10c and 10c are left and right side walls, 11 is a vertically long receiving port formed in the front wall 10a, and 12 is on the upper and lower parts on the left side so as to communicate with the receiving port. The cover plate cutout grooves 13 cut in a vertical line are upper and lower screw holes formed in the front wall 10a in the vicinity of the cutout grooves 12 and 12.

(3) Troyoke 2
Next, Troyoke 2 will be described. The shape of Troyoke 2 is generally the same as that of ordinary ones. That is, when the portion of the troyoke 2 is divided, the rectangular case portion 15 of the front opening that enters the reception opening 11 of the door frame 1 and the upper and lower ends of the rectangular case portion 15 that are integrally formed with the upper and lower ends of the opening 16 side, respectively. The mounting pieces 17 and 17 are formed with through-holes 18 and 18 that coincide with the screw holes 13 and 13 of the door frame 1.

  Thus, in this embodiment, a total of four left and right holding pin relief notches 20 and 20 are formed in the upper and lower portions of the left and right side walls 15c and 15c of the rectangular case portion 15, respectively. As shown in FIG. 1, these notches 20 are related to a pair of upper and lower movable core holding pins (engagement pins) 21 and 21, respectively.

  That is, each holding pin 21 penetrates the pair of left and right relief cutouts 20, 20. In a normal use state, the notch portion 20 is based on a small semicircular arc-shaped small engagement groove 20a that partially engages with the outer peripheral surface of one holding pin 21 and a small engagement groove 20a as a reference edge. And a holding pin relief portion 20b that expands in the direction of the back wall 15b of the rectangular case portion 15 and widens (for example, rectangular shape, vertical long hole shape, etc.).

  In addition, small engaged portions (for example, small engagement holes, small grooves formed on the inner wall surface) 22 and 22 are formed at positions near the upper and lower portions of the left and right side walls 15c and 15c.

(4) Movable core 3
Next, the movable core 3 will be described. As shown in FIG. 3, the movable core 3 is formed in a box shape having a plurality of openings. That is, 3a and 3a are upper and lower front walls, and in this embodiment, the tip of the sickle piece 7 is engaged with the inner wall surface of one of the front walls 3a during locking. 3c, 3c are left and right side walls, 25 is a vertically long front opening formed between the front walls 3a, 3a, and 26 is a vertical recess (a part of the front wall) formed in each of the front walls 3a, 3a. , 27 are upper and lower screw holes formed in the recesses 26, 26, 28 is a holding pin insertion hole formed above and below the left and right side walls 3c, 3c, and 30 is the left and right side walls 3c, 3c, respectively. Small engaging portions (for example, small protrusions) that are respectively formed at portions close to the upper and lower portions of the troyoke 2 and engage with and disengage from the small engaged portions 22 and 22 of the troyoke 2 described above, 31 is an upper and lower rear opening, and 32 is It is a receiving piece for a locking piece having a U-shaped cross section fixedly provided in the center of the left and right side walls 3c, 3c so as to divide the rear opening 31 vertically.

  By the way, as shown in FIG. 1, the movable core 3 is held in a loosely fitted state on the trowel 2 via the engaging portion 30 and the upper and lower holding pins 21 and 21. When the movable core 3 is loosely fitted to the trowel 2, the small protrusion-like engaging portions 30, 30 of the movable core 3 are engaged with the small engaged portions 22, 22 of the troyoke 2, respectively. Accordingly, the troyoke 2 and the movable core 3 are integrated with each other, though temporarily.

  Further, a slight clearance (for example, about 7 mm) is set between the lower surface of the locking piece 6 entering the movable core 3 and the horizontal upper plate portion 32a of the receiving piece 32. The piece 32 receives the impact force when the lower surface of the dead bolt 6 and the horizontal upper plate portion 32a collide with each other due to the deformation of the door frame. Moreover, since the sickle piece 7 is also provided in the present embodiment, when the sickle piece 7 rises while retracting simultaneously with the locking piece 6, the upper edge portion of the front opening 25 of the movable core 3 has both locking pieces. The impact force (external force) is received from 6 and 7.

  Accordingly, the movable core 3 can be moved back and forth through the horizontal upper plate portion 32a of the locking piece receiving piece 32, as will be described later, when both of the locking pieces 6 and 7 have moved to the Troyoke 2 side. It becomes a state.

(5) Cover plate 4
Next, the cover plate (strike) 4 will be described. 35 is a cover body, 36 is a deformable slanting upper and lower end connected to the cover body upward and downward, and 37 is provided so as to be orthogonal to the cover body from the right end of the cover body. 38, a front opening having the same shape as the front opening 25 of the movable core 3, and a cover plate 39 formed in the upper and lower portions of the cover body and matching the screw holes 27, 27 of the movable core 3. This is an insertion hole for the fixing tool 40.

  The cover plate 4 does not have the other side wall facing the entry engagement side wall 37. Further, the upper and lower projecting end portions 37a and 37a and the inclined upper and lower end portions 36 and 36 of the approach engagement side wall 37 engaged with the notch groove 12 of the door frame 1 are cut off from each other.

  Therefore, the inclined upper and lower end portions 36 and 36 of the cover plate 4 that covers the Troyoke fixing devices 41 and 41 are, for example, the substantially horizontal direction X that presses the cover plate 4 against the door frame side, or the cover plate 4 is the end surface side of the door 5 It can be deformed when an impact force in the reverse direction X that presses against it acts.

(6) Holding plate 8
As shown in FIG. 1, the holding plate 8 is positioned in the upper and lower gaps 46 and 46 set between the upper and lower inner wall surfaces 2 b and 2 b of the troyoke 2 and the upper and lower walls 3 b and 3 b of the movable core 3, respectively. As shown in FIG. The line object here means the upper and lower line objects when the horizontal line passing through the center of the movable core 3 is the object center line. The holding plate 8 of the present embodiment constitutes “one set” with a pair of upper and lower sides. This is the same as the embodiment described in Patent Document 2.

  However, the holding plate 8 of the present embodiment is composed of an end plate-like base end portion 8a and a tongue-like projecting piece portion 8c provided continuously from the base end portion via an elastic bent portion 8b. An escape notch 51 for receiving the flat head portion 9a of the fixing tool 9 is formed in 8c.

  4 and 5, the elastic bent portion 8b of the holding plate 8 includes a first bent portion A bent in a direction approaching the upper surface 52 of the base end portion 8a, and the first bent portion A. When the elastic bent portions A and B are displaced to the maximum by an external force, the projecting piece portion has a second bent portion B that is bent in a direction away from the upper surface 52 of the base end portion 8a. The inner surface 53 of 8c overlaps the upper surface 52 of the base end portion 8a.

  Further, referring to FIG. 5B, with reference to one point “center point 0” on the outer surface corresponding to the connecting portion between the base end portion 8a and the elastic bent portion 8b, the end plate-like base end portion 8a. When the length L1 of the tongue piece-like protruding piece portion 8c including the elastic bent portion 8b is compared, the tongue piece-like protruding piece portion 8c is longer than the end plate-like base end portion 8a. .

  In this regard, the tip of the projecting piece 8c is bent so as to protrude from the non-connected end face 54 opposite to the connecting portion of the tongue-shaped projecting piece when the elastic bent portion 8b is displaced to the maximum. In the normal use, the contact tip portion 55 contacts the upper and lower inner wall surfaces (this embodiment) of the troyoke or the upper and lower outer wall surfaces of the movable core.

  Further, the thickness of the head portion 9a of the fixing tool protruding from the through hole 56 for the fixing tool 9 formed in the central portion of the end plate-like base end portion 8a and the thickness of the tongue-like protruding piece portion 8c are substantially equal. The same.

(7) Elastic Deformation Function FIG. 7 is an explanatory diagram when an external force in the direction of the arrow (X axis and Y axis) is applied to the movable core 3 when an earthquake occurs. FIG. 8 shows that the elastic bent portion 8b of the holding plate 8 can be elastically deformed (has an elastic deformation function).

  The elastic bent portions 8b of the pair of upper and lower holding plates 8, 8 are slidable along the upper and lower inner wall surfaces 2b of the troyoke 2 as shown in FIG. Further, as shown in FIG. 8, when the elastic bent portion is displaced to the maximum, the inner surface 53 of the protruding piece portion 8c overlaps the upper surface of the base end portion 8a. That is, when the tongue-like projecting piece portion 8c is pechanko, the lower surface of the tongue-like projecting piece portion 8c comes into surface contact with the upper surface 52 of the end plate-like base end portion 8a.

  By the way, the elastic bent portion 8b of the present embodiment works immediately to secure the original holding state by the elastic return force of the material itself at the moment when the external impact force disappears after the earthquake occurs (elastic return deformation function). There is also.

  In addition, it adds about FIG. 7 here. When an earthquake occurs, for example, when the locking piece 6 tilts or descends due to the deformation of the door frame 1 and the lower surface thereof and the horizontal upper plate portion 32a of the receiving piece 32 collide with each other, it is movable. The core 3 receives a strong impact force from the locking piece 6 through the receiving piece 32.

  Accordingly, in the state of use of FIG. 1, an out-of-plane external force (external impact force) in the direction X intersecting the wall surface of the cover body 35 of the cover plate 4 is generated at the same time. When an external force in the direction Y parallel to the wall surface (external impact force) is generated at the same time, the cover plate 4 is shockedly pressed in the horizontal to vertical direction between the door frame 1 and the door 5. Therefore, the upper and lower end portions 36 and 36 are displaced outwardly and slide the front wall 10a of the door frame 1 in the trolley direction X and the vertical direction Y. At this time, the small engagement protrusions 30, 30 of the movable core 3 are deformed or broken and come out of the small hole 22 of the trojoke 2.

  However, since the troyoke 4 and the movable core 3 are integrated with each other via the holding pin 21, the troyoke 4 and the movable core 3 move back and forth in multiple directions to the rear gap 45 and the upper and lower gaps 46 in the troyoke 4. To do. Therefore, the movable core holding pins 21 and 21 shift from the small engagement groove 20a of the notch 20 of the troyoke 2 to the wide holding pin escape portion 20b in response to the backward and upward movement of the movable core 3. The action of the holding plate 8 (elastic deformation function and elastic return deformation function) is as described above.

(8) Combination of each member Next, the combination of each member is demonstrated easily. First, the troyoke 2 and the movable core 3 are combined together. At this time, the engaging portions 30 and 30 of the movable core 3 are engaged with the engaged portions 22 and 22 of the trolley 2, and the upper and lower holding pins 21 and 21 are connected to the upper and lower cutout portions 20 and 20 of the trooke 2 and the movable core. 3 are inserted into the upper and lower insertion holes 28, 28, respectively.

  Next, the case portion 15 of the troyoke 2 is fitted into the receiving port 11 of the door frame 1, and the upper and lower mounting pieces 17, 17 are brought into surface contact with the front wall 10 a of the door frame 1. Then, the Troyoke fixing tools 41 and 41 are screwed into the screw holes 13 and 13 of the door frame in accordance with the through holes 18 and 18 of the movable core. As a result, the trolley 2 is fixed to the door frame 1.

  Next, the cover plate 4 is made to cover the upper and lower mounting pieces 17, 17 of the troyoke 2. Thereafter, the cover plate fixing tools 40, 40 are screwed into the screw holes 27, 27 of the movable core 3 in accordance with the insertion holes 39, 39. When screwed, the upper and lower holding pins 21 and 21 are surely engaged with the small engagement groove 20a of the trowel, so that the members 2, 3 and 4 are integrated as shown in FIG. There is some rear lance between the upper surface of the locking piece 6 and the upper edge of the front opening 38 of the cover plate 4.

  In the present embodiment, the base end portions 8a and 8a of the holding plates 8 and 8 are respectively fixed to the upper and lower walls 3b and 3b of the movable core 3 via the fixtures 9 and 9 and are tongue-like projecting piece portions. The abutting tip portions 55 extending and formed on 8c abut on the upper and lower inner wall surfaces 2b, 2b of the troyoke 2 respectively. However, the present invention is not limited to this, and the base end portions 8a and 8a are fixed to the upper and lower inner wall surfaces 2b and 2b of the troyoke 2 via the fixtures 9 and 9, respectively. May be.

  Next, it is sufficient for the holding plate 8 to have at least an elastic deformation function. However, the holding plate 8 of this embodiment has a rigid function that can withstand the weight of the movable core and does not deform in a normal state. As shown in FIG. 1, the movable core is held in the upper and lower gaps 46 and 46 in a well-balanced manner, and is formed of a material having elasticity, and after the occurrence of the earthquake, there is no external impact force. At the moment, it has an elastic return deformation function that immediately secures the original holding state by the elastic return force of the material itself.

  Next, in the upper and lower portions of the left and right side walls 15c and 15c of the troyoke 2, a total of four base plate-shaped notch portions 20 and 20 for the left and right baseballs are formed respectively. Depending on the case, the shape may be changed as appropriate, and the number may be increased or decreased.

  Furthermore, in the central part of the left and right side walls 3c, 3c of the movable core, one receiving piece for the locking piece that can come into contact with the lower surface of the locking piece at the time of the earthquake is fixedly placed horizontally. Another receiving piece may be provided laterally so as to be in contact with the upper surface of the locking piece. The shape of the receiving piece for the locking piece can be arbitrarily changed. Further, for example, it is also equivalent that the engaged portions 22 are formed on the left and right side walls of the movable core, and the engaging portions 30 that are temporarily engaged with the engaged portions 22 are provided on the left and right side walls of the troyoke. is there.

  In addition, as in the second embodiment described in Patent Document 2, the formation target of the holding pin notch and the insertion hole may be changed. That is, although not shown in particular, the holding pin insertion holes are formed vertically on the left and right side walls of Troyoke, while the left and right side wall holding pin relief notches for the movable core are formed on the upper and lower sides, respectively. good.

1 to 8 are explanatory views showing an embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows embodiment (normal use condition). FIG. The disassembled perspective view which shows the relationship between a movable core and a holding plate, and the relationship between a movable core and a cover plate. Explanatory drawing from the perspective of the principal part. (A) and (b) of FIG. 5 is a schematic cross section of the main part and an explanatory view of the action. Schematic cross-sectional explanatory drawing (plan view) showing the state of the movable core when an earthquake occurs. Schematic cross-section explanatory drawing (side view) which shows the state of the movable core at the time of an earthquake occurrence. Schematic explanatory drawing which shows the function of a holding plate.

Explanation of symbols

X: Horizontal direction, Y: Vertical direction, 1 ... Door frame, 2 ... Troyoke, 2b ... Upper and lower inner wall surfaces of Troyoke, 3 ... Movable core, 3a ... Front wall, 3b ... Upper and lower walls of movable core, 3c ... Left and right side walls 4 ... Cover plate, 5 ... Door, 6, 7 ... Locking piece, 8 ... Holding plate, 8a ... Base end, 8b ... Elastic bent part, 8c ... Tongue-like protruding piece part, 9 ... Fastening tool, 10 ... Square tube portion, 10a ... front wall, 10b ... back wall, 10c ... left and right side walls, 11 ... receiving port, 12 ... cover plate notch groove, 13 ... screw hole, 15 ... square case portion, 15c ... left and right side walls, DESCRIPTION OF SYMBOLS 16 ... Opening, 17 ... Mounting piece, 18 ... Through-hole, 20 ... Notch part, 20a ... Small engagement groove, 20b ... Holding pin escape part, 21 ... Holding pin, 22 ... Engaged part, 25 ... Front opening , 26 ... recess, 27 ... screw hole, 28 ... insertion hole, 30 ... engagement portion, 31 ... rear opening, 32 Locking piece receiving piece, 32a ... horizontal upper plate part, 35 ... cover body, 36 ... inclined upper and lower end parts, 37 ... entry engaging side wall, 38 ... front opening, 39 ... insertion hole, 40 ... cover plate fixing tool , 41 ... Troyoke fixing tool, 45 ... rear gap, 46 ... upper and lower gaps, A ... first bent place, B ... second bent place, 0 ... one point on the outer surface corresponding to the connection part, L1 ... end Length of plate-like base end portion 8a, L2: length of tongue-like projecting piece portion, 51 ... notch for relief, 52 ... upper surface of base end portion, 53 ... inner surface of tongue-like projecting piece portion, 54 ... non Connection end surface, 55 ... abutting tip portion, 56 ... through hole.

Claims (5)

A movable core that is fitted in a loose fitting state with a troyoke fixed to the door frame in a fitted state, an inner wall surface at the back of the troyoke and upper and lower opposing inner walls, and a troyoke and movable The cover plate attached to the movable core so as to cover the front side of the core, and the base end side are respectively fixed to the upper and lower outer wall surfaces of the movable core or the upper and lower inner wall surfaces of the troyoke via a fixing tool, while the distal end portion And a holding plate disposed in the upper and lower gaps so as to contact the upper and lower inner wall surfaces of the troyoke or the upper and lower outer wall surfaces of the movable core, respectively, and at the tip end side of the holding plate when an earthquake occurs In the door lock bracket that is displaced in accordance with the vertical movement of the movable core, the holding plate is connected to the end plate-like base end portion and the base end portion through an elastic bent portion. From the tongue-shaped protrusion Ri, door lock receiving metal, characterized in that the formation of the notch for escape accept the head of the fastener to the protrusion portion. 2. The elastic bending portion according to claim 1, wherein the elastic bending portion is bent in a direction that is close to the upper surface of the base end portion, and is bent in a direction that is continuous with the first bending portion and that is away from the upper surface of the base end portion. A door lock receiving metal fitting having a second bent portion, wherein the inner surface of the projecting piece overlaps the upper surface of the base end when the elastic bent portion is displaced to the maximum. 2. The tongue-like projecting piece portion is formed on the end plate-like base portion on the basis of one point “center point 0” on the outer surface corresponding to the connecting portion between the base end portion and the elastic bent portion. Door lock bracket characterized by being longer than the end. The tip of the projecting piece is a bent contact that protrudes from the non-connected end surface opposite to the connecting portion of the tongue-shaped projecting piece when the elastic bent portion is displaced to the maximum. A door lock receiving metal fitting having a contact tip portion, and in normal use, the contact tip portion contacts an upper and lower inner wall surface of a troyoke or an upper and lower outer wall surface of a movable core. A trolley that is fixed to the door frame in a fitted state, and a gap is set in the trolley, and a holding plate that is positioned in the gap and is displaced in accordance with the vertical movement of the movable core. In the door lock bracket including the movable core that is fitted in a fitted state, the holding plate includes an end plate-like base end portion that is fixed to the troyoke or the movable core via a fixing tool, and the base end. For a door, characterized in that it is formed with a tongue-like projecting piece portion continuously provided from an elastic part through an elastic bent portion, and a relief notch for receiving the head of the fixing tool is formed on the tongue-like projecting piece portion. Lock receiving bracket.

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