JP3665794B2 - Door lock bracket - Google Patents

Description

[0001]
[Industrial application fields]
The present invention ensures that the lock can be operated even when the frame on the receiving side of the building is deformed by an earthquake or other external force, or when the door to which the lock case is attached is deformed. Further, the present invention relates to a door lock bracket that can open the door without hindrance.
[0002]
[Prior art]
Conventionally, the receiving brackets prepared for this type of earthquake have deformed or squeezed the locking latches of the receiving brackets against the external force in the direction in which the door and the frame are pressed against each other and the external force in the direction in which the door opens. The parts are designed to break, preventing deformation and breakage between the door and the bracket and pressure between the lock and the bracket and preventing the door from being opened due to an external force during an earthquake. It was.
[0003]
[Problems to be solved by the invention]
By the way, none of the above conventional devices have been devised for external force in the vertical direction.
Therefore, when a large external force is applied in the vertical direction as in the Great Hanshin Earthquake, the lock of the door lock is pressed against the upper or lower part of the receiving hole of the metal fitting, and the lock becomes inoperable and opens the door. There was a problem that it was impossible.
The present invention seeks to provide a solution to the above-mentioned conventional problems.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the door lock metal fitting of the present invention is provided with a box holder attached to the side of the frame facing the door of the door, and provided at the front surface of the box holder, and opened at the center in the longitudinal direction. A receiving plate in which a hole is formed, and a space formed by the box receiver and the receiving plate are fitted so as to be movable in the vertical direction, and the front surface portion is provided so as to protrude outside from the opening hole of the receiving plate. And a receiving member for a door lock provided with a receiving member formed with a lock hook engaging hole in the front portion, wherein the receiving member is a box formed by left and right bent pieces and upper and lower bent pieces. The upper and lower bent pieces are formed with stepped portions, and the end portions thereof are provided with leg pieces having elasticity of the material of the receiving member itself. The leg piece of the receiving member is brought into contact with the bottom part of the box receiver while being brought into contact with the peripheral edge portion of the opening hole.
[0005]
As a result, when an external force in the vertical direction is applied, the external force is absorbed. Further, the receiving member is also deformed when an external force in the protruding direction of the lock rod (also referred to as the horizontal direction) is applied. The external force is absorbed, and when the external force is removed, the original state is restored by the elastic force of the receiving member.
[0006]
[Action]
(1) When the door or frame is displaced by an external force in the vertical direction due to an earthquake or the like, and the upper end or lower end of the lock of the door lock comes into contact with the upper or lower end of the receiving hole of the receiving member, Although the contact portion receives a large external force, since the receiving member slides in the vertical direction, the external force is absorbed, and the lock rod can be reliably operated without being pressed against the receiving hole. Therefore, it is possible to evacuate quickly by opening the door.
[0007]
(2) Also, when an external force is applied in a direction (horizontal direction) in which the door and the frame come into contact with each other due to an earthquake or the like, the door comes into contact with the receiving member protruding from the receiving plate surface before contacting the receiving plate. And a receiving member deform | transforms and absorbs the external force. Therefore, the door can be reliably opened without being brought into pressure contact with the door.
When the external force is removed, the deformed portion of the receiving member returns to its original state due to its own elasticity.
[0008]
【Example】
An embodiment of the present invention will be described with reference to FIGS.
A receiving metal fitting 1 for a door lock according to the present invention includes a receiving plate 2, a box receiving 3 and a receiving member 4, and the receiving member 4 is formed in a space i formed by the receiving plate 2 and the box receiving 3. It is fitted.
As shown in FIGS. 2 and 3, the receiving member 4 is formed in a box shape by left and right bent pieces 44, 44 and upper and lower bent pieces 45, 45, and the front surface portion 43 has a lock engaging hole 41. , 42 are formed. Further, the upper and lower bent pieces 45, 45 are provided with step portions 46, 46, and the end portions thereof are provided with leg pieces 47, 47 for applying the elasticity of the material of the receiving member 4 itself. It has been.
[0009]
The receiving plate 2 and the box receiving 3 are well known in the art, and the receiving plate 2 is formed with an opening hole 21 and a mounting screw hole 22, and the box receiving 3 includes a box-shaped portion 31 for engaging the lock rod. Attachment portions 32 and 32 and attachment holes 33 and 33 are formed.
[0010]
In a state where the receiving member 4 is fitted between the receiving plate 2 and the box holder 3 and attached to the frame B, as shown in FIG.
The front surface portion 43 of the receiving member 4 protrudes from the opening hole 21 of the receiving plate 2 to the outside. Further, the stepped portions 46 and 46 of the receiving member 4 are brought into contact with the peripheral edge portion of the opening hole 21 of the receiving plate 2 so as not to be detached outside. The end portions of the leg pieces 47 of the receiving member 4 are brought into contact with the bottom of the box receiver 3 and are positioned in contact with the projections 34 provided on the bottom of the box receiver 3.
[0011]
Note that a gap is formed between the upper and lower portions of the box receiver 3 so that the receiving member 4 can slide in the vertical direction. Further, the height dimension H from the stepped portion 46 of the receiving member 4 to the end of the leg piece 47 is formed to be slightly larger than the depth dimension h from the receiving plate 2 and the bottom of the box support 3, and the screws 8, 8. When the attachment member 4 is attached, the receiving member 4 is compressed by the difference in height, and the receiving member 4 is pressed between the receiving plate 2 and the box receiver 3 by the elastic force of the leg pieces 47 and 47 and is held firmly. .
[0012]
In the drawings, 5 is a lock attached to the door A, 6 is a dead bolt which is a lock rod, and 7 is a latch bolt which is a lock rod. 9 is a trigger bolt.
[0013]
[Effect of the embodiment]
The operation of the above embodiment will be described with reference to FIGS.
(1) FIG. 1 shows a normal use state. The dead bolt 6 of the lock rod is engaged with and disengaged from the engagement hole 41 provided in the front surface portion 43 of the receiving member 4, and the latch bolt 7 of the lock rod is engaged with the engagement hole. 42 is engaged and disengaged.
[0014]
(2) FIG. 5 shows a case where the door is displaced upward due to an earthquake or the like. The upper part of the dead bolt 6 which is a lock of the lock comes into contact with the upper part of the engagement hole 41 of the receiving member 4 and is caused by an external force. The receiving member 4 slides upward. For this reason, the external force acting on the lock rod (dead bolt 6) and the receiving member 4 is absorbed, so that the lock rod is not pressed against the engagement hole 41 of the receiving member 4. Therefore, the lock rod can be operated although the frictional resistance of the contact portion is present, and can be retracted to open the door.
At this time, since the latch bolt 7 is not in contact with the engagement hole 42 of the receiving member 4, it can be retracted in the same manner as in a normal operation state.
[0015]
(3) FIG. 6 shows a case where the door is displaced downward due to an earthquake or the like. The lower part of the latch bolt 7 which is a lock of the lock comes into contact with the lower part of the engaging hole 42 of the receiving member 4 and is received by an external force. The member 4 slides downward. Accordingly, the latch bolt 7 can be moved backward to open the door without being brought into pressure contact with the engagement hole 42 of the receiving member 4 as in the case (2).
At this time, the positional relationship between the engagement hole 41 and the dead bolt 6 can be arbitrarily set so that the lower part of the dead bolt 6 does not contact the lower part of the engagement hole 41. Alternatively, as shown in FIG. 6, the latch bolt 7 and the dead bolt 6 can be set so as to contact the engaging holes 42 and 41, respectively. If both are in contact with each other, the respective resistance friction is reduced.
[0016]
(4) FIG. 7 shows the case where the door A is displaced in the direction of the frame B due to an earthquake or the like. When the door A is displaced in the direction of the frame B, the front plate 51 of the lock 5 or the front part of the door A is the receiving bracket. 7 is brought into contact with the front surface portion 43 of the receiving member 4 protruding from the opening hole 21 of the receiving plate 2, and the receiving member 4 is pushed in the direction of the arrow B in FIG. At this time, since the leg pieces 47 of the receiving member 4 are deformed, the external force is absorbed and the door (or the front plate of the lock) is not pressed against the frame (or the receiving plate 2 of the receiving bracket 1).
Therefore, although there is frictional resistance due to the elasticity of the leg pieces 47, 47 of the receiving member 4, the door can be opened by an opening force that overcomes the frictional resistance.
[0017]
(5) FIG. 8 shows the case where the door A is displaced upward and in the frame B direction due to an earthquake or the like.
In this case, it is the same as the operations (2) and (4) above, and the lock rod can be retracted and the door can be opened.
[0018]
(6) Although not shown, when the door A is displaced downward and in the frame B direction, it is the same as above.
[0019]
To restore the normal state of FIG. 1 after the receiving member 4 is moved or deformed as shown in FIGS. 5 to 8, the mounting screws 8 and 8 of the receiving bracket 1 are loosened and the receiving plate 2 is removed. Thereafter, the receiving plate 4 is returned to the original position in FIG.
[0020]
[Other variations]
In the embodiment shown in FIGS. 1 to 8, the receiving plate 2, the box receiver 3 and the receiving member 4 of the receiving metal 1 are provided separately, and the receiving metal 1 is integrally provided when fixed by screws 8 and 8. Although the receiving member 4 is fitted in advance at a factory or the like, the receiving plate 2 and the box receiver 3 may be fixed together by caulking or welding, and the receiving bracket 1 may be provided integrally.
In this case, after the receiving member 4 is moved upward or downward due to an external force such as an earthquake, the receiving member 4 may be moved with a force larger than the external force applied to the receiving member 4 in order to return to the original state. .
[0021]
【The invention's effect】
When the external force due to an earthquake or the like acts on the door or the frame upward or downward as described above, the receiving member of the present invention moves upward or downward to receive the external force. Absorb. For this reason, the upper or lower portion of the lock rod is not pressed against the lock engagement hole of the receiving member, and the lock rod can be reliably moved backward and the door can be opened.
[0022]
Even when an external force acts in a direction in which the door and the front of the frame are pressed against each other, the leg portion of the receiving member of the metal fitting is deformed to absorb the external force. Therefore, the door (or the front plate of the lock) is not pressed against the frame (or the metal fitting), and the door can be opened.
[0023]
Furthermore, even when an external force acts in the upward direction (or downward direction) and in the direction in which the door and the frame are pressed against each other, the receiving member moves upward (or downward) and the legs of the receiving member are deformed. Thus, all the external forces are absorbed, so that the door can be reliably opened without the lock rod or the door being pressed against the receiving member.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional side view of a main part showing a normal use state of a metal fitting of the present invention.
2 is a cross-sectional plan view of the main part of FIG. 1. FIG.
FIG. 3 is a perspective view of a state in which the metal fitting of the present invention is disassembled.
FIG. 4 is a perspective view of the same mounting state as above.
FIG. 5 is a longitudinal sectional side view of a main part showing a state in which an external force is applied upward.
FIG. 6 is a longitudinal sectional side view of a main part showing a state in which an external force is applied downward.
FIG. 7 is a vertical cross-sectional side view of a main part showing a state in which an external force acts in a direction in which the door and the frame are pressed against each other.
FIG. 8 is a vertical cross-sectional side view of a main part showing a state in which an external force is applied upward and in a direction in which the door and the frame are pressed against each other.
[Explanation of symbols]
1 receiving bracket 2 receiving plate 3 box receiving 4 receiving member 5 lock 6 dead bolt
7 Latch bolt
21 opening hole 41 lock hook engaging hole 42 lock hook engaging hole 43 front face 44 bent piece (left and right)
45 folded pieces (up and down)
46 Step 47 Leg piece A Door B Frame

Claims (1)

A box receiver 3 attached to the frame side facing the door contact of the door, a receiving plate 2 provided on the front surface of the box receiver 3 and having an opening hole 21 at the center in the longitudinal direction; The front plate 43 is provided in a space formed by the receiving plate 2 so as to be movable in the vertical direction, and the front surface portion 43 is provided so as to protrude from the opening hole 21 of the receiving plate 2. Is a door lock receiving member provided with a receiving member 4 formed with a lock hook engaging hole,
The receiving member 4 is formed in a box shape by left and right bent pieces 44, 44 and upper and lower bent pieces 45, 45, and the upper and lower bent pieces 45, 45 have stepped portions 46, 46, and The end portions are provided with leg pieces 47 and 47 having elasticity of the material of the receiving member 4 itself, and the step portions 46 and 46 of the receiving member 4 are brought into contact with the peripheral edge portion of the opening hole 21 of the receiving plate 2. In addition, the door lock bracket is characterized in that the leg pieces 47 of the receiving member 4 are brought into contact with the bottom of the box receiver 3.

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