JP3937193B2 - Sliding door lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a lock for a sliding door that has a structure simplified while buffering an impact force applied to the lock to prevent damage to the lock.
[0002]
[Prior art]
As a conventional lock for a sliding door, there is one disclosed in Japanese Patent Publication No. 56-33553. 26, the cam plate 2 is rotatably supported by a shaft 1 on a hook case (not shown), and the pin 3 of the slide button 4 provided with a pin 3 at one end thereof. And a pin 6 is implanted on the other end, and the pin 6 is engaged with a guide hole 7 formed in the hook 5.
[0003]
Then, by closing the sliding door provided with the lock, the slide button 4 ′ collides with, for example, a pillar provided with a striker (not shown) and is pushed into the hook case, and resists the elastic force of the spring 8. The cam plate 2 is rotated in the direction of the arrow. By rotating the cam plate 2, the fulcrum 10 of the hook 5 is moved to the position 10 ′ against the elastic force of the spring 9, and the pin 5 is guided by the guide hole 7 to rotate the hook 5. , Engage with a striker (not shown). The lock lever 11 is turned by applying an external force, and the hook 5 is locked from turning in the direction 5 'when the sliding door is moved in the opening direction, thereby preventing the sliding door from being opened.
[0004]
When opening the sliding door, the fulcrum 10 'of the hook 5 is pulled in the direction of 10 by the spring 9 by opening the sliding door while the lock lever 11 is rotated in the direction of the arrow by an external force and the hook 5 is unlocked. At the same time, the cam plate 2 is rotated in the direction opposite to the arrow (clockwise direction) by the spring 8 to rotate the hook 5 in the direction 5 'and the slide button 4 is projected, so that the hook 5' At the same time as the sliding door is opened while the engagement with the striker is released, the slide button 4 is projected to the position 4 'to return to the original state.
[0005]
Next, an outline of the lock disclosed in Japanese Utility Model Publication No. 5-89750 will be described with reference to FIG. A cam plate 2 is pivotally supported by a hook case (not shown) via a shaft 1 so that the cam plate 2 is always given a rotational force in a direction opposite to the arrow direction (clockwise direction). A spring is mounted on the shaft 1. The slider 12 is connected to one end of the cam plate 2 in a state where a pin implanted in the cam plate 2 is fitted into a long hole 14 ′ provided in the slider 12. A hook 5 is rotatably provided at the other end of the slider 12 via a pin 14, and a rotational force is applied to the pin 14 so that the hook 5 always rotates in the direction of the arrow (counterclockwise). A spring is installed.
[0006]
When the sliding door is closed, for example, the slide button 4 collides with a pillar provided with a striker (not shown) and is pushed in the direction of the arrow, and the cam plate 2 is rotated in the direction of the arrow. By the rotation of the cam plate 2, the slider 12 is moved horizontally in the direction of the arrow, the hook 5 protrudes from the bottom of the hook case (not shown), the hook 5 engages with the striker (not shown), and the sliding door opens. Lock in direction.
[0007]
Next, when the sliding door is opened, the unlocking member 15 is pushed down in the direction of the arrow by an external force, and the rear portion 16 of the hook 5 is pushed against the elastic force of the spring to which the rotational force is applied in the arrow direction. Is rotated to the position 5 ', and after the engagement between the hook 5' and the striker (not shown) is released, the sliding door is opened. Since the cam plate 2 is always provided with a rotational force in the clockwise direction, when the sliding door is opened, the cam plate 2 is automatically rotated in the clockwise direction to project the slide button 4 to the position 4 '. It is made to return to the state of.
[0008]
Next, a conventional example disclosed in Japanese Utility Model Laid-Open No. 5-47263 will be described with reference to FIG. A pin 18 implanted in the slider 17 is guided by a long hole 19 opened in a hook case (not shown) so that the slider 17 can be moved in the vertical direction of the arrow. A torsion coil spring 20 is provided between the pin 22 provided at the end of the slider 17 and the pin 21 provided in the hook case so as to elastically restrict the vertical movement of the slider 17. ing.
[0009]
In addition, the hook 5 is rotatably provided on the hook case via a shaft 25, and a pin 23 provided on the slider 17 engages with a recess 24 formed on the hook. Can be rotated. The pin 23 is guided along a long hole 26 opened in the hook case. The hook case is provided with a lever 27 via a shaft 30, and a rear end 28 of the lever 27 is engaged with a locking portion 29 provided on the slider 17. The hook 5 and the lever 27 are provided with torsion coil springs 31 and 32, respectively, and an elastic force is applied so that the hook 5 and the lever 27 always rotate counterclockwise.
[0010]
When the sliding door provided with the lock is closed, the lever 27 'collides with, for example, a pillar provided with a striker (not shown), and the lever 27' is rotated to the position 27 against the elastic force of the torsion coil spring 32. The locking between the rear end 28 and the locking portion 29 'is released. Then, the slider 17 is slid upward by an external force to rotate the hook 5 counterclockwise, and the striker and the hook 5 are engaged to lock the sliding door in the opening direction.
[0011]
Next, when the sliding door is opened, the rear end 28 of the lever 27 is shaped so that the slider 17 is not locked to the locking portion 29 with respect to the downward movement. It can be moved downward. Therefore, by moving the slider 17 downward by an external force, the hook 5 is rotated clockwise against the elastic force of the torsion coil spring 31, and the engagement between the hook 5 and the striker is released. I try to open the sliding door.
[0012]
[Problems to be solved by the invention]
The conventional sliding door lock has the following problems to be improved. There is no problem at the time when the lock for the sliding door is installed. However, there is a case where the entire house is subsequently distorted due to land subsidence or drying shrinkage of wood, and the distortion may spread to the door frame. As described above, when the door frame is distorted, the position between the striker provided on the pillar or the like and the hook is shifted, and the hook collides with the striker when the door is closed.
[0013]
Therefore, in those disclosed in Japanese Patent Publication No. 56-33553 and Japanese Utility Model Laid-Open No. 5-89750, the slide button 4 'comes into contact with the striker when the door is closed, and the cam Since the hook 2 is forcibly rotated and the hook 5 is protruded, when the hook 5 collides with the striker, a force for rotating the cam plate 2 in the opposite direction is exerted by the force of the collision. It will be. However, when the cam plate 2 is rotated in the opposite direction by the impact force, the tip of the slide button 4 'comes into contact with the striker, so that the cam plate 2 cannot be rotated in the opposite direction. There is a problem that a large impact force acts on the lock, and the force spreads to each part of the lock and damages the lock, such as bending and deformation.
[0014]
Also, when transporting the lock attached to the door, the door itself is quite heavy and either the hook or the slide button protrudes, so that the protruding hook or In order not to damage the slide button, a strict protective member must be provided and packed. For this reason, packaging takes time and sufficient care is required for handling, and there is a problem in handling, and it is necessary to replace it if the hook etc. are bent. Furthermore, since it is the site where the packaging is unpacked that the hook is bent, there is a problem that it takes time to replace it.
[0015]
Next, there are the following problems to be improved in terms of handleability, workability, and assembly. First, the one disclosed in Japanese Patent Publication No. 56-33553 is composed of a total of six parts: a cam plate 2, a slide button 4, a hook 5, a lock lever 11, and springs 8 and 9. A lot of time is required for processing and assembly, and there is a problem to be improved in terms of processing and assembly.
[0016]
In particular, the cam plate 2, the slide button 4, the hook 5, and the lock lever 11 are in a disjoint state in assembly, and the cam plate 2 and the slide button 4 are connected by the pin 3 and between the cam plate 2 and the hook 5. Is connected by the pin 6 and, further, the springs 8 and 9 exert the elastic force on the cam plate 2 and the hook 5, so that the assembly is difficult.
[0017]
The sliding door is locked and unlocked by rotating the lock lever 11, but the rotation of the lock lever 11 does not coincide with the moving direction of the sliding door (in the direction of arrow A). It is difficult to use the closing force, and in order to rotate the lock lever 11, a force in a direction different from the direction in which the sliding door is opened and closed is required. Therefore, in order to lock and unlock the sliding door, there is a problem to be improved in terms of handling because another operation is required in addition to opening and closing the sliding door.
[0018]
Next, what is disclosed in Japanese Utility Model Laid-Open No. 5-89750 is a cam plate 2, a slide button 4, a slider 12, a hook 5, a release member 15, a spring for constantly applying a rotational force to the cam plate 2, a hook 5. It consists of a total of seven parts of springs that always give a rotational force to them, and it takes a lot of time to process and assemble these parts, and problems that should be improved in terms of processing and assembleability There is.
[0019]
In particular, in the assembly, the cam plate 2 and the hook 5 must be connected to each other with a pin in a state in which the rotational force is always applied by the spring, so that the assembly is difficult. . The sliding door is locked and unlocked by moving the release member 15 in the vertical direction. Since the movement of the release member 15 is a direction perpendicular to the moving direction of the sliding door (the direction of arrow A), It is difficult to use the force for opening and closing the door, and in order to move the release member 15 up and down, a force in a direction different from the direction for opening and closing the sliding door is required. Therefore, in order to lock and unlock the sliding door, there is a problem to be improved in terms of handling because another operation is required in addition to opening and closing the sliding door.
[0020]
Next, what is disclosed in Japanese Utility Model Laid-Open No. 5-47263 is composed of a total of six parts, that is, a hook 5, a slider 17, a lever 27 and torsion coil springs 20, 31, 32. Since much time is required for assembly, there is a problem to be improved in terms of processing and assembly.
[0021]
In particular, the slider 17, the hook 5 and the lever 27 are in a disjointed state during assembly, and the hook 5 is difficult to assemble because the rotational force is exerted by the elastic force of the torsion coil spring 31. The sliding door is locked and unlocked by moving the slider 17 in the vertical direction. Since the movement of the slider 17 is perpendicular to the moving direction of the sliding door (in the direction of arrow A), the sliding door is opened. It is difficult to use the closing force, and in order to move the slider 17 up and down, a force in a direction different from the direction in which the sliding door is opened and closed is required. Therefore, in order to lock and unlock the sliding door, there is a problem to be improved in terms of handling because another operation is required in addition to opening and closing the sliding door.
[0022]
Further, in the above conventional example, since the moving direction of the member for locking and unlocking the sliding door does not coincide with the opening and closing movement direction of the sliding door, in order to move the locking and unlocking member of the sliding door by the opening and closing operation of the sliding door However, there is a problem that the mechanism becomes complicated and the workability and the assembling property are further lowered.
[0023]
The present invention makes it possible for the slide button to appear and disappear independently, prevents damage to the lock, reduces the number of lock parts, improves workability and assembly, and uses a simple mechanism to open and close the sliding door Thus, it is possible to provide a lock for a sliding door that can be locked and unlocked and can be easily handled.
[0024]
[Means for Solving the Problems]
The means grasped from the description of claim 1 for solving the above-mentioned problem is that a hook engaging part is projected and retracted from a bottom part of a hook case provided on the sliding door side, and a striker provided on a pillar or a wall is provided with a hook. In the lock for the sliding door that engages and disengages the locking portion, the hook case is pivotally supported on the hook case, and a hook slider for rotating the hook is provided movably. The hook slider can be moved in and out of the bottom of the hook case in the same direction as the movement direction of the hook slider, and a slide button is provided on the hook slider so as to be movable via a spring. And can be moved in and out from the bottom of the hook case in the direction of movement of the hook slider, and twisted between the hook slider and the end of the hook. Connected by Irubane, so as to rotate the hook by movement of the hook slider, characterized in that the concatenation of the hook and hook slider.
[0025]
Next, how the problem is solved by the means grasped from the description of claim 1 will be described. The means grasped from the description of claim 1, wherein a hook engaging portion pivotally supported on the hook case can be projected and retracted from the bottom of the hook case in the same direction as the movement direction of the hook slider, and By attaching the slide button so that it can move in and out from the bottom of the hook case in the direction of movement of the hook slider, the opening and closing movement direction of the sliding door and the sliding direction of the hook slider can be matched, and the hook locking portion and the slide button can be moved in and out. Can do.
[0026]
Since the slide button is attached to the hook slider via a spring, when an excessive force is applied to the slide button and the hook in the axial direction, the slide button is separated from the hook slider in a single state. It can be made to appear from the bottom of the hook case in the same direction as the moving direction.
[0027]
Then, the hook slider and the hook end are connected by a torsion coil spring, and the hook and the hook slider are connected so that the hook is rotated by the movement of the hook slider, so that the torsion coil spring can be used without using a lock member. The sliding force can be locked by maintaining the engagement between the hook locking portion and the striker by the elastic force of the hook slider, and the unlocking of the hinged door can be released without using a lock release member. The hook is rotated by moving the hook, and the engagement between the hook locking portion and the striker can be released.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment of the present invention ascertained from the description of claim 1 is as follows. In FIG. 1, the locking portion 501 of the hook 5 is made to protrude from the bottom of the hook case 35 provided on the sliding door D side, and the locking portion 501 of the hook 5 is engaged with the striker 36 provided on the pillar or the wall W or the like. The lock for the sliding door is designed to be disengaged, and the hook 5 is pivotally supported on the shaft 34 so as to be pivotable on the hook case 35, and in the engagement hole 331 provided in the hook slider 33 as shown in FIG. The hook slider 33 is movably provided so that the engagement pin 502 provided on the hook 5 is engaged and the hook 5 is rotated by the movement of the hook slider 33.
[0029]
Then, the locking portion 501 of the hook 5 can be projected and retracted from the bottom portion of the hook case 35 in the same direction as the movement direction (arrow S) of the hook slider 33. Further, as shown in FIG. 3, a spring 47 is provided between a spring receiver 339 provided on the hook slider 33 and a spring receiver 406 provided on the slide button 4, and an excessive force is applied to the axial direction of the slide button 4 or the hook 5. When is operated, the spring 47 is pushed and shrunk so that the slide button 4 can move independently. When an excessive force is not applied to the slide button 4 or the hook 5, as shown in FIG. 2, the slide button 4 moves together with the hook slider 33 and moves from the bottom of the hook case 35 to the movement direction of the hook slider 33 (arrow S). ). Further, the hook slider 33 and the end of the hook 5 are connected by a torsion coil spring 37.
[0030]
Next, embodiments of the present invention will be described in more detail. In FIG. 1, a hook case 35 is attached to the sliding door D side, and a striker 36 is attached to the pillar or wall W side. In the hook case 35, the hook 5 is pivotally supported by a shaft 34 so as to be rotatable. Further, as shown in FIG. 2, the engagement pin 502 provided on the hook 5 is engaged with the engagement hole 331 provided on the hook slider 33, and the hook 5 is rotated by the movement of the hook slider 33. Yes.
[0031]
The moving direction (arrow S) of the hook slider 33 coincides with the opening / closing direction of the sliding door D in FIG. 1, and the hook 5 is engaged by sliding the hook slider 33 in the arrow S direction and rotating the hook 5. The stop portion 501 protrudes from the bottom of the hook case 35 in the arrow S direction. Further, the slide button 4 is attached to the hook slider 33 via a spring 47. When a large external force is applied to the slide button 4 or the hook 5, the spring 47 is pushed and shrunk so that the slide button 4 is separated from the hook slider 33. It can move independently, and when a large force is not applied, it is integrated with the hook slider 33, and the slide button 4 is moved from the bottom of the hook case 35 by sliding the hook slider 33 in the arrow S direction. It appears to appear in the same arrow S direction as 33 movement direction. Further, the end portions of the hook slider 33 and the hook 5 are connected by a torsion coil spring 37.
[0032]
Next, the detail of each part is demonstrated. FIG. 3 shows a state in which the slide button 4 is attached to the hook slider 33 in FIG. As shown in FIG. 4, the hook slider 33 is made of a thin plate material having a thickness t, and a head portion 333 is formed by bending an end portion thereof at a substantially right angle. In FIG. 3, the planar shape of the hook slider 33 is substantially T-shaped. A tip guide surface 334 having a width J1 is formed at the tip, and a center guide surface 336 having a width J2 is formed at the center. Has been.
[0033]
Further, an arm 337 is provided between the distal end guide surface 334 and the central guide surface 336, and the arm 337 is formed with a spring receiver 339 for receiving the spring 47 and for stopping the proximal end of the torsion coil spring 37. A spring stop 332 is formed. The spring receiver 339 and the spring stopper 332 are formed by pressing the hook slider 33. As shown in FIG. 4, the slide button 4 is provided with a guide hole 405, and a spring stopper 332 is fitted into the guide hole 405, so that the slide button 4 can move with respect to the hook slider 33. ing.
[0034]
Further, the slide button 4 is provided with a stepped portion 407, and the base end portion of the torsion coil spring 37 fixed to the spring stopper 332 is positioned below the slide button 4. The slide button 4 is provided with a spring receiver 406, and a spring (compression spring) 47 is attached between the spring receiver 406 and a spring receiver 339 provided on the hook slider 33. The elastic force of the spring 47 is such that when a strong external force is applied to the slide button 4 or the hook 5, the slide button 4 can be moved alone by pressing and contracting the spring 47, and is strong against the slide button 4 or the hook 5. When no external force is applied, it is determined that the slide button 4 and the hook slider 33 are integrated and the slide button 4 moves.
[0035]
An engagement hole 331 is formed in the tip guide surface 334 portion. The width J5 of the engagement hole 331 is wider than the diameter of the engagement pin 502 (FIG. 2) so that the hook 5 can freely rotate with respect to the hook slider 33 at a constant rotation angle. It has become. The width J3 of the head 333 is a width necessary for a knob described later to come into contact. Reference numeral 335 denotes a stopper surface.
[0036]
The planar shape of the hook 5 is substantially J-shaped as shown in FIG. 2, and a shaft 34 is provided at substantially the center thereof. A locking portion 501 is formed at one end, and a pin 503 for attaching the torsion coil spring 37 is provided at the other end. The pin 503 is substantially on the line connecting the shaft 34 and the pin 503 and is engaged with the intermediate portion. An engagement pin 502 that engages with the hole 331 is provided. In addition, the number of parts is reduced by pressing the pins 503.
[0037]
Next, FIG. 8 is a perspective view of the hook case 35 in FIG. 1, and the general shape thereof is made to match a member of a target shape provided with a mounting flange 355. 351 is a guide surface formed by notching the ceiling flange 357, and the interval J2 ′ of the guide surface 351 is substantially equal to the width J2 of the central guide surface 336 of the hook slider 33 shown in FIG. Like to do. 352 is a guide flange, and when assembled by being fitted between the guide surfaces 351, a gap corresponding to the thickness t of the hook slider 33 shown in FIG. 4 is formed between the tip of the guide flange 352 and the wall surface. In addition, the width J4 of the guide flange 352 is narrowed.
[0038]
353 is a guide surface formed by cutting and raising the wall surface, 354 is a shaft hole for supporting both ends of the shaft 34 in FIG. 1, and as shown in FIG. 7, the distance J1 ′ between the guide surface 353 and the shaft hole 354 Is substantially equal to the width J1 of the tip guide surface 334 of the hook slider 33 in FIG. 3, and the tip guide surface 334 is guided between the guide surface 353 and the outer periphery of the shaft 34 supported by the shaft hole 354. I have to. As shown in FIG. 6 and FIG. 7, the mounting flange 355 is fixed to the mounting plate 38 with a caulking pin integrally formed by pressing, and the mounting plate 38 has a diameter through which the slide button 4 having the diameter D1 shown in FIG. D2 hole 39 is drilled. Thus, the number of parts is reduced by providing the caulking pin integrally with the mounting plate 38 by pressing.
[0039]
Next, the striker 36 in FIG. 1 will be described. 9 to 11, a striker body 362 having a wall thickness t of L4 is fixed to the surface of the striker mounting member 361, and a hook having a width J6 and a length L1 for allowing the hook 5 to enter and exit the striker body 362. A hole 363 is formed, and the striker mounting member 361 is also provided with a hole 366 having a width J6 and a length L2. The hook hole 363 is provided with an inclined surface 364. The striker mounting member 361 has a groove shape as shown in FIG. 11, and U grooves 365 are formed at both ends thereof as shown in FIG.
[0040]
The striker mounting plate 40 is shown in FIGS. The wall thickness t of the striker mounting plate 40 is equal to the wall thickness t of the striker body 362 shown in FIG. 9, and when the striker body 362 is fitted into the striker fitting hole 401, the striker mounting plate 40 and the striker body. The 362 is in the same plane. The length L3 of the striker fitting hole 401 is longer than the length L4 of the striker main body 362, and the striker main body 362 is fitted in the striker fitting hole 401 as shown in FIG. 36 can be moved in the direction of arrow a.
[0041]
Reference numeral 402 denotes a striker fixing hole, which is positioned in the U groove 365 shown in FIG. 10, and a bolt inserted into the striker fixing hole 402 is screwed into a square nut 41 having one side shown in FIG. The striker 36 is fastened to the striker mounting plate 40 by adjusting the position of 36 in the direction of arrow A. At the time of this fastening, the position of the striker 36 with respect to the striker mounting plate 40 can be adjusted in the direction of the arrow B with a screw screwed into the adjustment screw hole 404. Reference numeral 403 denotes a striker mounting plate and a plate fixing hole for attaching the 40 to a pillar, for example.
[0042]
15 to 17 show another embodiment of the striker 36 and will be described. FIG. 15 is a diagram showing a plane of the front plate 367. A hook hole 367b having a width J6 and a length L3 is formed in a substantially central portion, and a front plate mounting hole 367a is formed at an end thereof. FIG. 16 is a view showing a plane of the striker main body 362, and a hook hole 363 having a width J6 and a length L1 is formed in a substantially central portion.
[0043]
The length L1 of the hook hole 363 is shorter than the length L3 of the hook hole 367b shown in FIG. 15. Even if the striker body 362 is displaced with respect to the front plate 367 in the longitudinal direction of the hook hole 363, the hook The hook 5 can be locked in the hole 363, and the vertical position of the hook 5 can be adjusted. In addition, U-grooves 365 are provided at both ends of the striker body 362 so that the vertical position of the striker body 362 can be adjusted. FIG. 17 shows a plane of the washer 368, and the U-groove 369 is also provided in the washer 368.
[0044]
18 to 20 are views showing various modes for assembling the front plate 367, the striker body 362, and the washer 368. FIG. First, in order to attach the striker 36, a hole 452 for fitting a hole 451 and a case 369 for accommodating the hook 5 into a pillar or the like is dug. The depth D of the hole 451 for attaching the front plate 367 is constant. The depth D of the hole 451 is equal to the thickness t1 of the front plate 367 + the thickness t2 of the striker body + the thickness 2 × t3 of the two washers 368. An example of the wall thickness t3 of the washer 368 is 1 mm.
[0045]
In the assembly shown in FIG. 18, with the front plate 367 and the striker body 362 being in close contact with each other, the two washers 368 are applied to the back of the striker body 362, and screws are inserted into the front plate mounting holes 367a to be fixed. ing. Accordingly, the height H3 from the front surface of the front plate 367 to the back surface of the striker body 362 (the engagement surface of the hook 5) becomes the wall thickness t1 of the front plate 367 + the wall thickness t2 of the striker body 362, and the hole 451 The front plate 367 can be mounted without changing the depth D.
[0046]
Next, in the assembly shown in FIG. 19, the front plate 367, the washer 368, the striker body 362, and the washer 368 are assembled in this order. In this assembly, the height H2 from the front surface of the front plate 367 to the back surface of the striker body 362 is the wall thickness t1 of the front plate 367 + the wall thickness t3 of the washer 368 + the wall thickness t2 of the striker body 362 and the hole 451 The front plate 367 can be mounted without changing the depth D.
[0047]
Next, in the assembly shown in FIG. 20, the front plate 367, the two washers 368, and the striker body 362 are assembled in this order. In this assembly, the height H1 from the front surface of the front plate 367 to the back surface of the striker body 362 is the thickness t1 of the front plate 367 + the thickness 2 × t3 of the two washers 368 + the thickness t2 of the striker body 362. In addition, the front plate 367 can be attached without changing the depth D of the hole 451.
[0048]
In this way, by installing the front plate 367, the striker body 362 and the two washers 368 in combination, the height between the front surface of the front plate 367 and the back surface of the striker body 362 from H1 to H3 (the longitudinal direction relative to the hook 5). ) And the engagement state between the hook 5 and the striker body 362 can be adjusted. In addition, since U-grooves 365 and 369 are provided at both ends of the striker body 362 and the washer 368, the striker body 362 and the washer 368 are moved in the vertical direction with respect to the screw inserted through the mounting hole 367a provided in the front plate 367. The engagement state between the hook 5 and the striker body 362 can be adjusted in the front-rear direction and the vertical direction. Further, by using two washers 368, the hole 451 can be attached without changing the depth D.
[0049]
FIG. 21 is a view showing the engagement between the handle 42 provided on both surfaces of the door D and the hook slider 33, and the projection 44 provided on the handle 42 is inserted into the handle mounting hole 358 shown in FIGS. The head 333 of the hook slider 33 is pushed by the tip 431 of the knob 43 that is rotatably provided on the handle 42.
[0050]
Another embodiment of the engagement hole 331 is shown in FIG. In the engagement hole 331 ′ provided in the hook slider 33, an inclined surface 338 having an inclination angle α for guiding the engagement pin 502 provided in the hook 5 is formed. Thus, by forming the inclined surface 338, the hook slider 33 moves, and the moving distance of the hook slider 33 while the engaging pin 502a is pushed by the inclined surface 338b and moves to 502b is La. As compared with the case where the inclined surface is not provided as in the engagement hole 33 shown in FIG. 3, the moving distance of the hook slider 33 is shortened by Lb = a1 / cos α. Similarly, the hook slider 33 is further moved so that the distance of movement of the hook slider 33 is Ld while the engaging pin 502a is pushed by the inclined surface 338c and moves to 502c, and the engaging hole 33 shown in FIG. As compared with the case where the inclined surface is not provided, the moving distance of the hook slider 33 is shortened by Le = a2 / cos α.
[0051]
That is, when the inclined surface 338 is not provided like the engagement hole 33 shown in FIG. 3, the hook slider 33 must be moved by Lc and Lf, whereas when the inclined surface 338 is provided. Therefore, the hook slider 33 needs only to move by La and Ld which are shorter by an / cos α, and the hook 5 can be projected faster. Similarly, in the movement from the engaging pins 502e to 502d and 502c, the moving distance of the slider 33 is shortened by an / cos α, and the hook 5 can be retracted accordingly.
[0052]
Specifically, referring to FIG. 25, first, in the state of (A), the engaging pin is at the position 502a and the hook 5 is retracted. When the sliding door is moved in the direction of the arrow (D), the tip of the slide button 4 comes into contact with the striker body 362, and the hook slider 33 is moved in the direction of the arrow (S). Therefore, when the amount of movement of the hook slider 33 reaches Ld (B), the engaging pin is at the position 502c, and the shaft 34, the engaging pin 502c and the pin 503 are in the vertical state. When the minute amount of the hook 5 rotates in the direction in which the hook 5 protrudes from this vertical state, the hook 5 is rotated in the direction in which the hook 5 protrudes by the elastic force of the torsion coil spring 37 (see FIG. 2). The hook slider 33 is moved in the direction of the arrow (S) in FIG. 5C by the engagement between the engagement hole 331 and the engagement pin 502, and the tip of the slide button 4 and the striker are engaged. A gap C is formed between the main body 362 and the main body 362.
[0053]
Next, when unlocking and opening the sliding door, the hook slider 33 is moved to the arrow (S) by a gap C (approximately 4 mm, for example) between the tip of the slide button 4 and the striker body 362. By moving the hook 5 in the opposite direction, the hook 5 is rotated to the position 5 ', a gap C0 is formed between the hook hole 363 and the hook 5, the lock is released, the sliding door can be opened, and the slide The button 4 can be projected and the hook 5 can be retracted to the original state (A).
[0054]
In FIG. 24, an inclined guide surface 504 having an inclination angle β is formed at the tip of the hook 5. Thus, for example, even if the sliding door is closed with the hook 5 protruding, the upper edge of the hook hole 363 is in sliding contact with the inclined guide surface 504 and pushes the hook 5 down to the position 5 'so that the tip of the hook 5 is hooked to the hook hole 363. The hook 5 is rotated to the position of 5 ″ by the elastic force of the torsion coil spring 37 and can be engaged with the striker body 362.
[0055]
Next, the operation of this embodiment configured as described above will be described. First, assembly of the lock for the sliding door will be described. The assembly parts include the hook 5, the slide button 4, the hook slider 33, the torsion coil spring 37 and the spring 47. 8, the central guide surface 336 (FIG. 3) of the hook slider 33 is positioned between the guide surfaces 351, and the hook slider 33 is set on one side of the hook case 35. Next, in FIG. With the engagement pin 502 of the hook 5 engaged with the joint hole 331, the shaft 34 provided on the hook 5 is inserted into the shaft hole 354 shown in FIG.
[0056]
As a result, the tip guide surface 334 (FIG. 3) of the hook slider 33 is positioned between the guide surface 353 formed on the wall surface of the hook case 35 and the shaft 34. In the assembly so far, there is no elastic force of the spring and the number of parts is small, so that the assembly can be facilitated. Then, after supporting the base end of the torsion coil spring 37 to the spring stopper 332 and the pin 503 provided on the hook 5, the guide hole 405 of the slide button 4 is fitted into the spring stopper 332, and between the spring receivers 406 and 339. Install the spring 47. Then, the other hook case 35 is joined to the one hook case 35 by caulking or the like.
[0057]
Next, as shown in FIG. 21, the opening / closing direction of the door D (arrow C) and the sliding direction of the hook slider 33 are matched, and the head 333 of the hook slider 33 is simply pushed by the tip 431 of the knob 43, Since a special mechanism for connection is not required, the hook case 35 is attached to the hole opened in the door D as shown in FIGS. 1 and 21, and the protrusion 44 of the handle 42 is connected to the handle mounting hole of the hook case 35. By attaching the handle 42 to the door D by inserting it into 358, the lock to the door D can be easily attached.
[0058]
On the other hand, as shown in FIGS. 1 and 21, the striker 36 is attached to the pillar or the wall by fitting the striker attachment member 361 into the hole 45 dug in the pillar or the like and attaching the striker attachment plate 40 to the pillar or the like. . Since the striker body 362 can move in the direction of the arrow A as shown in FIG. 12, the alignment between the striker body 362 and the locking portion 501 of the hook 5 is performed as shown in FIG. Further, the screw screwed into the adjustment screw hole 404 is moved in the direction of arrow B to adjust the gap between the striker body 362 and the locking portion 501 of the hook 5, and the hook 5 The door D can be attracted and locked and unlocked smoothly.
[0059]
In addition, as shown in FIG. 1, a cushion member 46 is interposed between the door D and the pillar W or the like, and the locking portion 501 of the hook 5 and the striker body 362 are in the locked state in the opening direction of the door D. The door D may be attracted to the pillar W or the like, and the impact when the door D is closed may be eliminated.
[0060]
Next, the locking portion 501 of the hook 5 pivotally supported on the hook case 35 can be projected and retracted from the bottom of the hook case 35 in the same direction as the movement direction of the hook slider 33, and the slide button 4 Is attached so as to be able to protrude and retract in the direction of movement of the hook slider 33 from the bottom of the hook case 35, so that the door D is moved in the direction of arrow C by holding the knob 43 of the handle 42 provided on the sliding door D as shown in FIG. By opening, it is possible to release the locking between the locking portion 501 of the hook 5 and the striker body 362, and by closing the door D by placing the hand on the step 421 of the handle 42, the hook 5 The locking part 501 and the striker body 362 can be locked.
[0061]
Specifically, in FIG. 2A, the hook 5 is given a clockwise rotational force about the shaft 34 by the elastic force of the torsion coil spring 37, and the hook 5 has a locking portion 501. And the striker body 362 are engaged, and the door is locked in a closed state. Then, when opening the door D, as shown in FIG. 21, the hand is pulled to the knob 43 and the knob 43 is rotated like 43 'to push the head 333 of the hook slider 33 with the tip 431 of the knob 43, The hook slider 33 is slid in the direction opposite to the opening direction of the door D (arrow c).
[0062]
That is, in the state of FIG. 2A, the hook slider 33 is moved by a gap C (approximately 4 mm, for example) provided between the tip of the slide button 4 and the striker body 362. During the movement of the hook slider 33 during this time, the door D does not move in the opening direction yet, and only the hook slider 33 can be moved. Alternatively, even if this gap C is not provided, it is possible to move only the hook slider 33 without moving the door D in the direction of opening the door 47 while pressing and contracting the spring 47. Further, when the gap C is provided, a thin object such as a metal scale is inserted through the gap C and the hook 5 is pushed down so that the state shown in FIG.
[0063]
As described above, when the hook slider 33 is moved by the gap C (or by pressing and contracting the spring 47), the engagement between the engagement hole 331 and the engagement pin 502 is reduced while the proximal end interval K1 of the torsion coil spring 37 is reduced. As a result, the hook 5 is rotated about the shaft 34 as a center of rotation, so that the state shown in FIG. 2B is obtained, and the locking portion 501 of the hook 5 can pass through the hook hole 363 and the slide button 4 The tip of the abutment comes into contact with the striker body 362 so that the door D can be opened.
[0064]
Then, by continuing to hold the knob 43 shown in FIG. 21 and opening the door D, the door D moves in the direction of the arrow (D) as shown in FIG. Pushed by the tip 431 and slid in the direction of the arrow (S), the hook 5 is further rotated, and at the same time, the slide button 4 is projected in the direction of the arrow (S).
[0065]
When the hook 5 is rotated to a certain rotation angle, the base end interval of the torsion coil spring 37 is compressed to K2 and a large elastic force is applied, and the engagement hole 331 is connected to the engagement pin 502. Since the diameter of the hook 5 is larger than that of the hook slider 33, the hook 5 can be automatically rotated as shown in FIG. 2C. It rotates counterclockwise and is immersed in the hook case 35, and its state is maintained by the elastic force of the torsion coil spring 37, and the slide button 4 protrudes to the maximum protruding amount.
[0066]
Next, when the door D is closed in the direction of the arrow D in FIG. 2C by placing a hand on the step portion 421 of the handle 42 shown in FIG. 21, the protruding slide button 4 collides with the striker body 362 and pushes it. Then, the hook slider 33 is moved in the direction of the arrow (S). Then, by the engagement pin 502 engaged with the engagement hole 331, the hook 5 is rotated clockwise around the shaft 34 while pushing and contracting the proximal end interval K1 of the torsion coil spring 37 as shown in FIG. When the hook 5 reaches a certain rotation angle, the elastic force of the torsion coil spring 37 causes the engagement pin 502 to move freely within the engagement hole 331 and rotate the hook 5 independently of the movement of the hook slider 33. 2A, with the clearance C formed between the tip of the slide button 4 and the striker body 362 as shown in FIG. 2 (A), the locking portion 501 of the hook 5 and the striker body are caused by the elastic force of the torsion coil spring 37. The engagement with 362 is maintained.
[0067]
As described above, the hook button 4 is directly attached to the hook slider 33 via the spring 47 having a predetermined elastic force so that the slide button 4 can be projected and retracted in the moving direction of the hook slider 33 from the bottom of the hook case 35. Since it is moved by the hook slider 33, the spring and cam plate for moving the hook button 4 can be omitted.
[0068]
The hook slider 33 and the end of the hook 5 are connected by a torsion coil spring 37, and the hook 5 and the hook slider 33 are connected so that the hook 5 is rotated by the movement of the hook slider 33. The sliding door opening lock can be locked by maintaining the engagement between the locking portion 501 of the hook 5 and the striker main body 363 by the elastic force of the torsion coil spring 37 without using the door. Without using the lock release member, the hook slider 33 can be moved to rotate the hook 5 to release the engagement between the engaging portion 501 of the hook 5 and the striker body 362.
[0069]
Further, the rotation resistance of the hook 5 is a force for compressing the torsion coil spring 37 from the base end interval K1 to K2, and the engagement pin 502 can move freely in the engagement hole 331. Since 431 and the head 333 of the hook slider 33 are separated from each other, even if the hook 5 protrudes from the bottom of the hook case 35 of the door D that is open for some reason, the hook 5 is moved into the hook case 35 with a light force. Even if the door D is not opened even if the knob 43 is pulled when the door D is locked as shown in FIG. A thin object is inserted between the door D and the striker body 362, the hook 5 is rotated, and the door lock can be released even in an emergency where the lock is broken.
[0070]
In addition, the door frame is distorted due to ground subsidence or drying of the wood, and the position of the striker body 362 is displaced as shown in FIG. 5, so that the locking portion 501 contacts the striker body 362 as shown in FIG. When they come into contact with each other, a large force may act on the shaft 34 when the door is closed, and the hook 5 and the shaft 34 may be bent. That is, when the door is closed and the slide button 4 comes into contact with the striker body 362 as shown in (A), the hook slider 33 is pushed in the direction of the arrow (S), and the hook 5 rotates about the shaft 34. The locking part 501 protrudes, and the locking part 501 comes into contact with the striker body 362.
[0071]
Therefore, the slide button 4 can be moved independently of the hook slider 33 via the spring 47, so that the hook slider 33 is pushed by the hook 5 by the arrow while the spring 47 is compressed by the force of closing the door. While being moved by L in the (S) direction, the slide button 4 is pushed back into the hook case 35, and the impact force acting on the shaft 34 can be relaxed by the elastic force of the spring 47. Further, by providing the spring 47 in this way, the locking portion 501 of the slide button 4 and the hook 5 can be pushed into the hook case 35 at the same time.
[0072]
In the sliding of the hook slider 33, as shown in FIG. 3, the hook slider 33 is formed with a central guide surface 336 and a tip guide surface 334, and a guide surface 351 and a guide surface formed on the hook case 35 as shown in FIG. Since the guide is provided by the shaft 353 and the shaft 34, the hook slider 33 can be smoothly slid. In addition, since the guide surface 351 is provided on the hook case 35 and the guide surface 353 is formed by cutting and raising the wall surface, the guide surface can be easily formed by pressing, and there is no special mechanism as a guide. The number of parts can be reduced.
[0073]
In the above description, the engagement hole 331 is formed in the hook slider 33 and the engagement pin 502 is provided in the hook 5. However, the engagement hole 331 is formed in the hook 5 and the engagement pin 501 is provided in the hook slider 33. Even so, the effect is the same.
[0074]
【The invention's effect】
As described above in detail, based on the description of claim 1, according to the present invention ascertained from the detailed description of the present invention, the hook locking portion pivotally supported on the hook case is provided with the movement of the hook slider. The sliding button can be moved in and out from the bottom of the hook case so that it can move in and out in the direction of movement of the hook slider, and the sliding door opening and closing movement direction matches the sliding direction of the hook slider. Because the hook locking part and slide button are projected and retracted, the door can be locked and unlocked using the opening and closing force of the door without requiring a special coupling mechanism, and the number of parts can be reduced. While improving workability and assemblability, locking and unlocking can be performed simply by opening and closing the sliding door, so that handling thereof can be facilitated.
[0075]
In addition, when the slide button is attached to the hook slider via a spring and an excessive force is applied in the axial direction to the slide button, the slide button is separated from the hook slider and the same direction as the movement of the hook slider. Since it is made to protrude from the bottom of the hook case in the direction, damage to the lock can be prevented even if the striker main body and the hook locking portion interfere with each other.
[0076]
Then, the hook slider and the end of the hook are connected by a torsion coil spring, and the hook and the hook slider are connected so that the hook is rotated by the movement of the hook slider, and the torsion coil spring is used without using a lock member. With the elastic force, the engagement between the hook locking part and the striker is maintained to lock the opening of the sliding door, and the unlocking of the opening door is released by moving the hook slider without using the unlocking member. Since the hook is rotated and the engagement between the hook locking portion and the striker is released, the number of parts can be reduced, and workability and assembly can be improved.
[Brief description of the drawings]
FIG. 1 is a partial longitudinal sectional view showing an embodiment of the present invention.
FIG. 2 is a diagram showing an operating state of a main part of the embodiment shown in FIG.
3 is a plan view of the hook slider in FIG. 1. FIG.
4 is a side view showing a part of FIG. 3 in a longitudinal section. FIG.
FIG. 5 is a diagram showing an operating state of a main part of the embodiment shown in FIG. 1;
6 is a longitudinal sectional view taken along line XX in FIG.
7 is a front view showing one side of the hook case in FIG. 1. FIG.
8 is an exploded exploded perspective view of the hook case in FIG. 1. FIG.
9 is a longitudinal sectional view of the striker along line YY in FIG.
FIG. 10 is a plan view of the striker in FIG.
11 is a longitudinal sectional view taken along line ZZ in FIG.
12 is a longitudinal sectional view of the striker mounting plate in FIG. 1. FIG.
FIG. 13 is a plan view of FIG.
14 is a plan view of the nut in FIG. 1. FIG.
FIG. 15 is a plan view of a front plate of another embodiment of the striker.
FIG. 16 is a plan view showing another embodiment of the striker body.
FIG. 17 is a plan view of a washer.
FIG. 18 is a longitudinal sectional view showing how the striker shown in FIGS. 15 to 17 is used.
19 is a longitudinal sectional view showing another usage mode of the striker shown in FIGS. 15 to 17. FIG.
20 is a longitudinal sectional view showing still another usage mode of the striker shown in FIGS. 15 to 17. FIG.
FIG. 21 is a cross-sectional view showing the relationship between the handle and the hook slider in FIG. 1;
22 is a front view of the handle in FIG. 1. FIG.
FIG. 23 is a schematic view showing another embodiment of the engagement hole.
FIG. 24 is a diagram showing a state when the sliding door is closed with the hook protruding.
25 is a view showing an operating state of the main part with respect to the engagement hole in FIG. 23. FIG.
FIG. 26 is a diagram illustrating a conventional example.
FIG. 27 is a diagram showing another conventional example.
FIG. 28 is a diagram showing still another conventional example.
[Explanation of symbols]
4 Slide button
5 Hook
501 Locking part
502 engaging pin
503 pin
33 Hook slider
331 engagement hole
34 axes
35 Hook case
37 Torsion coil spring
47 Spring

Claims (1)

In the lock for the sliding door where the hook locking part is projected and retracted from the bottom of the hook case provided on the sliding door side, and the hook locking part is engaged and disengaged from the striker provided on the pillar or wall, etc. The hook case is pivotally supported so that the latching portion at the lower end of the hook can protrude from the hook case, and the hook slider for rotating the hook can be moved in the opening / closing direction of the sliding door. A hook button and a hook slider are connected to a pin provided at the upper end of the hook and a spring stopper at the upper end of the hook slider by attaching each base end of a torsion coil spring, and the slide button is movable to the hook slider via the spring. When the sliding door is closed, the sliding button is pushed inside the hook case and the hook is transmitted with the pressing force transmitted through the spring. Ida moves, sliding door for the lock, characterized in that the hook has to rotate by the elastic force of the torsion coil spring caused by the movement of the hook slider.

Images