JP4107124B2 - Door lock bracket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door lock receiving bracket provided on a frame on the door end side of a building opening to which a door is attached, and more particularly to an earthquake resistant receiving bracket.
[0002]
[Prior art]
Conventional seismic strikes used for seismic doors correspond to local deformation of the heel frame due to shear failure of the sleeve wall by deformation of the seismic strike itself. However, if the strike itself is deformed, the strength of the strike is so weak that it is extremely vulnerable to the destruction of the door lock by the bar, which is increasing rapidly.
[0003]
A sickle-type deadbolt is effective as a measure to open the bar. When trying to forcefully open the door body, the sickle-type deadbolt locks the tip of the door to the back of the strike. . However, if the strength of the strike itself is weak as described above, there is a risk that the strike itself locked by the sickle-type deadbolt may be destroyed. I can't.
[0004]
Moreover, when an interlayer deformation occurs due to an earthquake or the like, the door end side of the door body moves up and down. As countermeasures against interlayer deformation, conventionally, the vertical dimension of the receiving hole formed in the strike is increased to increase the clearance with the dead bolt or the latch. However, when sickle-type dead bolts are used, the tip of the sickle-type dead bolt must be securely locked to the back of the strike, and considering this, the upper and lower sides of the receiving holes formed in the strike A large clearance cannot be taken.
[0005]
[Patent Document 1]
JP-A-11-62337
[0006]
[Problems to be solved by the invention]
The present invention was devised in order to solve the above-mentioned problems, and is an earthquake-resistant door that can cope with sickle-type dead bolts while being able to cope with local deformation and interlayer deformation well. The object is to provide a lock bracket.
[0007]
[Means for Solving the Problems]
The technical means adopted by the present invention in order to achieve such a problem is a door lock receiving metal fitting having a receiving box and a movable frame provided in the receiving box, and the receiving box has a bottom portion and a side wall. The front side is open, and a pin fixed to the receiving box is provided between the side walls of the receiving box. The movable frame has a front wall and a side wall, and the front wall is dead. A receiving hole for a bolt and / or a latch is formed, and a guide hole for allowing the pin to pass therethrough is formed in the side wall of the movable frame body in the vertical direction and the front-rear direction. The movable range of the body is restricted by the guide hole, and a spring member is interposed between the rear portion of the movable frame body and the bottom of the receiving box, and the movable frame body includes the spring member. is biased at all times on the front side by the guide holes, before-edge, vertical-edge, and are formed in the rear side, the rear edges When the movable frame is in a fixed position, the pin is in contact with the bulged portion of the rear side, and the movable frame is subjected to an external force. Sometimes it is movable rearward, upward or downward within the receiving box, and when the external force acting on the movable frame is released, the movable frame is automatically returned to a fixed position. It is characterized by being.
[0008]
The movable frame body is movable in the receiving box by the guide hole being guided by the pin and moving in the front-rear direction or the up-down direction. Normally, the pin is in contact with the rear side of the guide hole by the spring force of the spring member, and the pin can move relatively forward in the guide hole (that is, the movable frame moves backward). Possible). When the door body comes into contact with the collar frame during local deformation, the movable frame body moves to the rear side by elastically deforming the spring member built in the bracket.
[0009]
After-edge of the guide hole has become the center site with bulged shape rearward, the pin is constantly passing in contact with the bulged portion of the rear side. When the movable frame moves upward or downward due to interlayer deformation or the like, the movable frame moves up and down while the rear side of the guide hole is guided by the pin. More preferably, the rear side of the bulging shape is composed of two inclined sides, and the pin is always in contact with the meeting portion of the two inclined sides. When the movable frame moves upward, the movable frame moves while the lower inclined side contacts the pin. When the movable frame moves downward, the movable frame moves while the upper inclined side contacts the pin. Further, in the movable frame once moved, the force of the spring member acts in the direction in which the movable frame returns to the original position, and when a force that moves the movable frame forward acts, Automatically return to a fixed position. Therefore, when the movable frame is pulled by a strong force from the outside, the movable frame automatically returns to the fixed position.
[0010]
Preferably, the dead bolt is a sickle-type dead bolt, and the sickle-type dead bolt can be locked to the back side of the front wall in a state of protruding into the receiving hole of the front wall of the movable frame body. Since the pin fixed to the receiving box passes through the guide hole, the movable frame body does not come out even if the bar is broken when locked with the sickle dead bolt. Further, when the sickle deadbolt is locked, since the tip of the sickle deadbolt is locked to the back surface of the front wall of the movable frame body, a force that moves the movable frame body easily acts. Therefore, even when the sickle-type dead bolt is locked in the receiving hole of the front wall of the movable frame body in a state where the movable frame body is moved, when the sickle-type dead bolt is pulled, the movable frame body is It automatically returns to a fixed position, and the sickle-type dead bolt is located in a stable receiving hole.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
In the frame of the building opening that is opened and closed by the door body, the eaves frame 2 corresponding to the door end side of the door body 1 is provided with a receiving hole for receiving the sickle-type dead bolt 3 and the latch 4 provided in the door body 1. A door lock bracket is provided. On the side wall of the collar frame 2, a recess is formed at a portion corresponding to the dead bolt 3 and the latch 4 of the door body 1, and the receiving metal fitting is attached to the collar frame 2 through the recess.
[0012]
The receiving bracket includes a receiving box 5, a movable frame 6 provided in the receiving box 5 so as to be movable in the vertical direction and the front-rear direction, and a front surface of the receiving box 5 in a state where the movable frame 6 is received in the receiving box 5. And a cover plate 7 to be covered.
[0013]
The receiving box 5 has a substantially rectangular parallelepiped shape as a whole, and is constituted by a rectangular vertically long bottom portion 50 and a quadrangular wall portion, and the front side is open. The quadrilateral wall portion is composed of a short upper wall 51 and a lower wall 52 facing each other, and long side walls 53 and 54 facing each other. Mounting edges by extending the edges of the upper and lower walls of the receiving box 5 in a direction parallel to the bottom 50 (perpendicular to the upper wall 51 and the lower wall 52) and away from each other (upward and downward, respectively). 55 and 56 are formed. Screw holes 57 and 58 are formed in the mounting pieces 55 and 56, respectively.
[0014]
The movable frame body 6 is formed from a front wall 60 and left and right side walls 61 and 62 in a substantially U shape in a sectional view. Two openings 63 and 64 are formed in the front wall 60, and the opening 64 constitutes a dead bolt 3 and the opening 63 constitutes a receiving hole for the latch 4. In the illustrated example, two openings are formed in the front wall 60, but one opening may be provided. Further, the vertical relationship between the dead bolt 3 and the latch 4 may be opposite to that shown in the figure. In the illustrated example, the locking portion at the tip of the sickle-type dead bolt 3 protrudes upward during locking, but the locking portion at the tip of the sickle-type dead bolt 3 may protrude downward. The movable frame 6 has dimensions and shapes such that when the movable frame 6 is provided in the receiving box 5, the outer surfaces of the left and right side walls 61 and 62 are close to or slidably contact the inner surfaces of the left and right side walls 53 and 54 of the receiving box 5. is doing. When the movable frame 6 is provided in the receiving box 5, the front wall 60 is positioned at the opening of the receiving box 5. The vertical dimension of the movable frame 6 is set to be smaller than the vertical dimension inside the receiving box 5, and the movable frame 6 can move up and down in the receiving box 5.
[0015]
Pins 8 are provided between the left and right side walls 53, 54 of the receiving box 5. In the illustrated example, three pins 8 are provided at intervals in the vertical direction, but the number of pins 8 is not limited to this. On the other hand, guide holes 9 through which the pins 8 are inserted are provided in the side walls 61 and 62 of the movable frame body 6. The movable frame 6 is attached to the receiving box 5 with the pins 8 inserted through the guide holes 9 of the left and right side walls 61 and 62. The area of the guide hole 9 is larger than the cross-sectional area of the pin 8, and the pin 8 is inserted into the guide hole 9 with play in the up and down and front and rear directions. On the other hand, the movable range of the movable frame 6 is restricted by the guide hole 9 and the pin 8.
[0016]
A gap is formed between the bottom 50 of the receiving box 5 and the rear portion of the movable frame 6, specifically, the rear edge of the side walls 61 and 62, and the leaf spring 10 is provided in the gap. It is. More specifically, the end edges of the side walls 61 and 62 are notched in a concave shape, and the plate spring 10 having a dish-like cross section is received between the notch and the bottom 50. Thus, the movable frame 6 provided in the receiving box 5 has a movable range limited by the pin 8 and the guide hole 9 and is biased to the front side via the spring member.
[0017]
The guide hole 9 provided in the side walls 61 and 62 of the movable frame 6 preferably has a base shape. Specifically, the guide hole 9 is formed of a substantially vertical front side 90, a substantially horizontal upper side 91, a substantially horizontal lower side 92, and a rear side 93 that bulges backward. . More specifically, the bulging rear side 93 includes a first inclined side 94 extending downward from the upper side to the lower side and a second inclined side extending downwardly from the upper side to the front side. The side 95 is formed in a square shape. In the illustrated example, the first inclined side 94 and the second inclined diameter side 95 have the same size and the same inclination angle, and the central portion in the vertical direction of the rear side 93 is bulging backward. The meeting parts of each side 90, 91, 92, 93, 94, 95 are formed in a curved shape rather than an acute angle, and preferably these meeting parts have a curved shape matching the circular cross section of the pin 8.
[0018]
The cover plate 7 is a vertically rectangular plate having a bent edge on one side, and has a vertically long opening 70 at a central portion, and screw holes 71 and 72 at an upper portion and a lower portion of the opening 70. Are formed respectively. The opening 70 has a dimension such that at least the front wall 60 of the movable frame 6 is exposed when the cover plate 7 is attached to the receiving box 5. The cover plate 7 is fixed to the receiving box 5 using the screw 11 through the screw holes 57, 58, 71 and 72. The upper and lower end portions of the front wall 60 of the movable frame 6 are open, and the opening is filled with a resin cap 12 for blinding.
[0019]
The left figure of FIG. 3 shows a normal metal fitting, and the movable frame 6 is urged to be pushed forward by the spring force of the leaf spring 10, and the front wall 60 of the movable frame 6 is covered. It protrudes from the surface of the plate 7. In normal times, the pin 8 is in contact with the bulging rear side 93 of the guide hole 9. Specifically, the pin 8 is in contact with the meeting portion of the first inclined side 94 and the second inclined side 95, and this state is a fixed position of the guide hole 9 with respect to the pin 8, and the guide hole 9 ( The movable frame 6) can move backward and up and down with respect to the pin 8. In the fixed position, as is apparent from the drawing, the dead bolt 3 and the latch 4 are located at the centers of the receiving holes 63 and 64, respectively. The home position shown in the left figure is the most stable position.
[0020]
The central view of FIG. 3 shows the time of local deformation, and corresponds to the case where the door body 1 moves so as to approach or come into contact with the frame. In the state shown in the left figure, when a force acts on the movable frame body 6 from the front to the rear in the direction of the arrow, the movable frame body 6 moves rearward against the spring force of the leaf spring 10, and the movable frame body The front wall 60 of 6 and the cover plate 7 are substantially flush with each other. The pin 8 has moved from the state shown in the left figure to a position close to the front side 90 of the guide hole 9. The bulged leaf spring 10 is deformed so as to extend in the vertical direction, and both ends of the leaf spring 10 are in contact with and latched with the edges of the notches formed on the rear edges of the side walls 53 and 54 of the movable frame 6. is doing. As described above, the movable frame 6 is elastically supported in the receiving box 5, and by utilizing the elastic deformation of the leaf spring 10, the door body 1 and the frame 2 are brought into contact with each other due to local deformation. The door 1 can be easily opened. When the force in the direction of the arrow is released, the movable frame 6 returns to the normal state shown in the left figure by the spring force of the leaf spring 10, and the positional relationship between the pin 8 and the guide hole 9 is also constant as shown in the left figure. Return to position.
[0021]
The right figure of FIG. 3 shows the time of interlayer deformation, and corresponds to the case where the door body 1 moves in the vertical direction (downward indicated by the arrow in the example of the figure). When the door body 1 moves downward, the movable frame body 6 moves downward via the dead bolt 3. To explain in relation to the left figure, when the movable frame 6 moves downward from the state of the left figure, the pin 8 moves relatively upward along the first inclined side 94 of the guide hole 9. Here, when the pin 8 moves along the first inclined side 94 of the guide hole 9, the pin 8 not only moves relatively upward but also relatively moves forward. That is, the pin 8 moves along the first inclined side 94 of the guide hole 9 against the spring force of the leaf spring 10. Therefore, when the force in the direction of the arrow is released, the spring force of the leaf spring 10 acts in a direction in which the movable frame body 6 returns to the home position shown in the left figure while being guided by the first inclined side 94. Therefore, when a force that moves the movable frame 6 forward acts in the state shown in the right figure, the movable frame automatically returns to the home position shown in the left figure.
[0022]
Similarly, when a force directed from below to above acts on the movable frame 6, the pin 8 moves relatively downward while being guided by the second inclined side 95 of the guide hole 9. Also in this case, the pin 8 moves along the second inclined side 95 of the guide hole 9 against the spring force of the leaf spring 10. Therefore, when the force acting on the movable frame 6 is released, the spring force of the leaf spring 10 acts in the direction in which the movable frame 6 returns to the home position shown in the left figure while being guided by the second inclined side 95. To do. Further, the force by which the pin 8 returns to the fixed position can be adjusted by selecting the inclination angle of the first inclined side 94 and the second inclined side 95 or / and the spring force of the leaf spring 11.
[0023]
In the door lock bracket configured as described above, the movable frame body 6 is elastically supported by the leaf spring 10 when the door end side of the door body comes into contact with the saddle frame with local deformation. Therefore, the door frame can be opened by moving the movable frame by elastically deforming the leaf spring 10. In addition, when the door body moves in the vertical direction with the interlayer deformation, the movable frame body 6 moves up and down in the guide hole 9, so that the receiving holes 63 and 64 of the front wall 60 of the movable frame body 6. Also move up and down.
[0024]
Even when a vertical external force acts on the movable frame 6 and moves upward or downward in the receiving box 5, when the force is released, the spring force of the leaf spring 10 is applied to the movable frame 6. Acts in a direction to return to the home position shown in the left diagram of FIG. In this state, when a force is applied to move the movable frame 6 to the front side, the rear side 93 of the guide hole 9 moves while being guided by the pin 8, and the movable frame 6 automatically returns to a fixed position. Therefore, when the movable frame body 6 is pulled with a strong force from the outside, the force is in agreement with the biasing direction of the spring force of the leaf spring 10, so that the movable frame body 6 returns to the home position. Move to. For example, when the movable frame body 6 is displaced from the fixed position and the movable frame body 6 is pulled by a bar or the like, the movable frame body 6 returns to the fixed position by using the force, and stable locking is brought about. Further, when the sickle-type deadbolt is locked, the sickle-type deadbolt 3 has its front end locked to the back surface of the front wall 60 of the movable frame body 6, so that when the sickle-type deadbolt 3 is pulled, the movable frame body 6 is moved to the front side. The force that moves is applied. Therefore, even if the sickle-type dead bolt 3 is locked to the receiving hole 64 of the front wall 60 of the movable frame body 6 with the movable frame body 6 moving upward or downward, the sickle-type dead bolt 3 is When pulled, the movable frame 6 automatically returns to a fixed position, and the sickle-type dead bolt 3 is stably positioned in the receiving hole 64. Therefore, the sickle-type dead bolt 3 is always applied to the receiving hole 64 of the movable frame 6 at an appropriate position, and is excellent in crime prevention.
[0025]
【The invention's effect】
In the door lock metal fitting according to the present invention, when the door body and the collar frame abut at the time of local deformation, the movable frame body is elastically supported by the spring member, so that the metal fitting itself is not deformed. The movable frame body is moved by elastically deforming the spring member, so that the door body can be opened. Therefore, strength can be given to the metal fitting itself and it is possible to cope with sickle-type dead bolts.
[0026]
When the interlayer is deformed, the movable frame is moved upward or downward in the receiving box. Therefore, it is not necessary to secure the dimensions of the receiving holes of the dead bolt and the latch bolt in the metal fitting vertically, and it is possible to cope with sickle-type dead bolts.
[0027]
Since the pin fixed to the receiving box passes through the guide hole, the movable frame body does not come out even if it is broken by a bar or the like when locked with a sickle type dead bolt.
[0028]
Also, after-edge of the guide hole is what has a bulging shape toward the rear, and more particularly, side after bulging Dejo are composed of two inclined sides, said pin passing normally of the two In the case where the movable frame body moves upward or downward, the movable frame body returns to the fixed position as shown in the left diagram of FIG. The spring force of the spring member acts. Therefore, when the movable frame is pulled by a strong force from the outside, the movable frame automatically returns to the fixed position shown in the left diagram of FIG. In particular, in the case of a sickle-type deadbolt, when the sickle-type deadbolt is locked, the tip of the sickle-type deadbolt is locked to the back surface of the front wall of the movable frame, so that the movable frame is moved forward. Force is easy to act. Therefore, even when the sickle-type dead bolt is locked in the receiving hole on the front wall of the movable frame body in a state where the movable frame body is moved, The body automatically returns to the fixed position shown in the left figure of FIG. 3, and the sickle deadbolt is positioned in a stable receiving hole, so that the sickle deadbolt is hooked on the receiving hole of the movable frame at an appropriate position. It has become.
[Brief description of the drawings]
FIG. 1 is a diagram showing a cross section of a fence frame on the door end side of the door body in a state where the door body is closed at the opening of the building. FIG.
FIG. 2 is a longitudinal sectional view, a transverse sectional view, and an enlarged view of a guide hole of a metal fitting in a normal state, and the longitudinal sectional view and the transverse sectional view are the same as the left view of FIG.
[Fig. 3] The left figure shows the vertical and horizontal cross sections of the metal fittings during normal operation, the middle figure shows the vertical and horizontal cross sections of the metal fittings during local deformation, and the right figure shows the metal fittings during interlayer deformation. It is the longitudinal cross-sectional view and cross-sectional view of a metal fitting.
[Explanation of symbols]
3 Dead bolt 4 Latch 5 Receptacle box 6 Movable frame 8 Pin 9 Guide hole 10 Leaf spring 50 Bottom 53 Side wall 54 Side wall 60 Front wall 61 Side wall 62 Side wall 63 Receiving hole 64 Receiving hole

Claims (3)

A receiving metal fitting for a door lock having a receiving box and a movable frame provided in the receiving box,
The receiving box has a bottom and a side wall, and the front side is open, and a pin fixed to the receiving box is provided between the side walls of the receiving box,
The movable frame has a front wall and a side wall, and a dead bolt and / or latch receiving hole is formed in the front wall, and the side wall of the movable frame has play in the vertical direction and the front-rear direction. A guide hole through which the pin is inserted is formed, and the movable range of the movable frame body is restricted by the guide hole,
A spring member is interposed between the rear part of the movable frame body and the bottom of the receiving box, and the movable frame body is normally urged forward by the spring member ,
The guide hole is formed by a front side, an upper side and a lower side, and a rear side. The rear side has a central portion that bulges rearward, and when the movable frame is in a fixed position, The pin is in contact with the bulging portion of the rear side, and the movable frame is movable rearward, upward or downward within the receiving box when an external force is applied. When the external force acting on the door is released, the movable frame is configured to automatically return to a fixed position . 2. The door lock receiver according to claim 1, wherein the rear side of the bulge is composed of two inclined sides, and the pin is always in contact with the meeting portion of the two inclined sides. Hardware. The dead bolt according to any one of claims 1 and 2 , wherein the dead bolt is a sickle-type dead bolt, and the sickle-type dead bolt protrudes into a receiving hole in the front wall of the movable frame body, and on the back side of the front wall. A door lock bracket that can be locked.

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