JP2001342767A - Hook lock for sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the reliability of bound prevention of a hook lock for a sliding door during closing operation of the same. SOLUTION: A hooked member 9 is arranged on one of the sliding door Y and a door frame body X, and a hook body 11 is arranged on the other one of them. The hook body 11 includes a moving member 17, a rotation operating member 16, a tracing body 18, a tracing body biasing means 26, a restricting member 14, and a position holding/biasing means 36. By virtue of this construction, during closing operation of the sliding door Y, upon abutting of the sliding door Y on the door frame body X, the hook body 11 hooks on the hooked member 9 on the door frame body X. Further, the hooked state of the hook body 11 is maintained during a restoring movement period of the tracing body 18, and therefore occurrence of bound of the sliding door Y is prevented. Still further, the bound prevention takes place in response to mechanical displacement due to the movement of the sliding door Y, and therefore a highly reliable and positive bound preventive effect can be obtained in a door closing direction irrespective of moving speed of the sliding door Y.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sickle lock for a sliding door.

[0002]

2. Description of the Related Art When a sliding door is closed, the sliding door is operated so as to be moved toward a door frame and brought into contact with the door frame. In this case, if the moving speed of the sliding door is excessive, When the front end of the sliding door comes into contact with the door frame, the sliding door does not stop in the state of contact with the door frame, but moves in a direction away from the door frame by receiving a reaction force at the time of contact. A "bound state" occurs, and the sliding door is reliably closed (that is, a state in which the front end of the sliding door comes into contact with or close to the door frame) and it is difficult to maintain this state. .

As one means for addressing such a problem, for example, a sickle lock for a sliding door has been proposed as disclosed in Japanese Patent Application Laid-Open No. 10-28069.

[0004]

The conventional lock for a sliding door is provided with a sickle on the side of the sliding door, and the sickle is moved backward when the sliding door comes into contact with the door frame. Using the displacement of the door frame to the hook member on the door frame side,
By holding the hooked state of the sickle for a moment by the swinging member that swings and displaces due to the inertial force at the time of the closing operation,
The bouncing state of the sliding door during the closing operation is prevented.

[0005] However, since the rocking member is rockingly displaced by the inertia force at the time of closing the door, it is necessary to properly rock the rocking member to exhibit the function of holding the sickle. It is necessary to have an inertia force equal to or larger than the magnitude, and therefore, for example, if the inertia force during the closing operation is small, the swing member does not function sufficiently, and it is possible to reliably prevent the sliding of the sliding door during the closing operation. There is room for improvement in terms of sex.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a sickle lock for a sliding door, which can reliably prevent bouncing when the sliding door is closed.

[0007]

Means for Solving the Problems In the present invention, the following configuration is adopted as specific means for solving such problems.

In the first invention of the present application, the sliding door Y and the sliding door Y
And a "hanging posture" in which the hooking member 9 is hooked to the hooking member 9 on one side and the hooking member 9 on the other side of the door frame body X for supporting the door frame X in a pushable manner. The sickle body 1 rotatable between the “latched release position” in which the latched state on the member 9 is released.
1 and each on the sickle 11 side,
The moving member 1 which comes into contact with the door frame X during the closing operation of the sliding door Y and is displaced backward from the “advance position” to the “retreat position”.
7 and the sickle 11
Is turned from the “unlocked position” to the “locked position”, and the moving member 17 or the turning operation member 16 is coupled to the moving member 17 when the moving member 17 is retracted. Integrally with the member 17 or the rotation operation member 16,
From the "position" to the "second position" and the "second position".
In the "position", the following moving body 18 is released from the connection and can move freely, and moving body urging means 26 for urging the following moving body 18 to move to the "first position" side. And the following moving member 18 is moved by the moving member 1
The moving speed when returning from the “second position” to the “first position” by the urging force of the moving body urging means 26 with the release of the connection with the rotation operation member 7 or 7 is adjusted. Speed adjusting member 2 for securing a predetermined return movement period
2 and set to the “regulation position” while the following moving body 18 is rotated corresponding to the return movement of the following moving body 18 and moves from the “second position” to immediately before the “first position”. When the “first position” is reached, the “segment release position” is set. At the “restricted position”, the sickle 11 is engaged with the sickle body 11 in the “hanging posture”. The rotation of the body 11 from the “latched position” to the “latched release position” is restricted, and in the “regulated release position”, the “slatch position” and the “latched release position” of the sickle body 11 The restricting member 14 that allows the posture change between them, and the action point 36 a
And the action point 36a is set to the support shaft 1 of the sickle body 11.
3 and a reference line L passing through the support shaft 28 of the rotating operation member 16.
The sickle body 11 moves between one side and the other side of the sickle.
And a posture holding urging means 36 for selectively energizing the "locking posture" side and the "latch releasing posture" side to hold the posture.

According to a second aspect of the present invention, in the sliding door sickle lock according to the first aspect, the moving speed adjusting member 22 is provided.
Are characterized by comprising a rack gear 18a provided on the following moving body 18, a pinion gear 23 meshing with the rack gear 18a, and a damper mechanism 24 for imparting rotational resistance to a rotation shaft of the pinion gear 23.

[0010]

According to the present invention, the following functions and effects can be obtained by adopting such a configuration.

In the sickle lock for a sliding door according to the first invention of the present application, when the sliding door Y is closed, the sliding door Y is pulled toward the door frame X and moves. When it comes into contact, at the same time, the advancing / retreating member 17 abuts on the door frame X and is displaced backward. In response to the backward displacement of the forward / backward moving member 17, the rotation operation member 16 is operated, and the sickle body 11 is rotated from the "latched release posture" to the "latched posture", and the door frame body X side And is urged by the urging force of the posture holding urging means 36 so as to maintain the "hanging posture".

On the other hand, with the retreat displacement of the reciprocating member 17, the following moving member 18 is moved integrally with the reciprocating member 17 from the "first position" to the "second position". When the “second position” is reached, the connection with the advance / retreat moving member 17 is released, and the state is set to a free state. When the following moving body 18 is in a free state, the following moving body 18 receives an urging force in the direction of moving from the “second position” side to the “first position” side by the moving body urging means 26, and position"
Return to the side. In this case, the moving speed at the time of the return movement of the following moving body 18 by the urging force of the moving body urging means 26 is adjusted by the moving speed adjusting member 22, and the following moving body 18 is moved from the "second position" to the "second position". 1st position "
Before returning to the predetermined state, a predetermined return movement period longer than the movement period in the case of free movement by the urging force of the moving body urging means 26 is secured.

When the following moving body 18 returns from the "second position" to the "first position" during the predetermined returning movement period, the regulating member 14 causes the following moving body 1 to return.
8 is set to the “restricted position” while moving from the “second position” to immediately before the “first position”.
When it reaches the "position", it is set to the "regulation release position".
When the following moving body 18 is set at the “restricted position”, the following moving body 18 is in the “hanging posture”.
1 to restrict the rotation of the sickle body 11 from the "latching position" to the "latching release position", while the "regulation release position"
When set to, the sickle body 11 acts so as to allow the posture change between the "hanging posture" and the "latch releasing posture".

Therefore, during the return movement period in which the following moving body 18 returns from the "second position" to the "first position", the "locking posture" of the sickle body 11 is maintained by the regulating member 14, The locking action of the sickle body 11 on the locking member 9 reliably restricts the sliding door Y from abutting against the door frame X and moving in the opening direction after bounding. Is properly closed and held.

On the other hand, when the following moving body 18 is set at the "first position", the operation of restricting the rotation of the sickle body 11 by the restricting member 14 is released. When pulled in the opening direction, the sickle 11 receives the operating force in the opening direction, and the
From the “latching position” to the “latching release position” against the urging force of
And the posture holding urging means 36
Is moved to the opposite side beyond the reference line L, the urging force of the posture holding urging means 36 is forcibly set to the "unlocked posture", and the sliding door Y is easily opened. Is done. In this case, the rotating operation member 16 is attached to the sickle 1
The reciprocating member 17 is actuated by receiving one turning force, and further, receiving the displacement of the rotating operation member 16, moves forward and backward to be set to the “advanced position” and prepares for the next closing operation.

As described above, according to the sliding door sickle lock of the present invention, when the sliding door Y is closed, the sickle body 11 is linked with the sliding door Y coming into contact with the door frame X. The hooking member 9 on the door frame body X side and the hooking state of the sickle body 11 are continued during the return movement period of the following moving body 18 so that the sliding state of the sliding door Y is changed. Since the occurrence is prevented beforehand, and since the bounce prevention is performed by receiving the mechanical displacement accompanying the movement of the sliding door Y, for example, the inertia force at the time of the closing operation is used. As in the case of the conventional structure in which the sliding door Y is moved in the closing direction as in the case of the conventional structure in which the sliding door Y is closed, the certainty of the bound prevention is not different depending on the moving speed in the closing direction. And a reliable anti-bound effect. It is intended.

According to the sickle lock for a sliding door according to the second invention of the present application, the following specific actions and effects can be obtained in addition to the actions and effects described above. In other words, according to the sliding door sickle lock of the present invention, in the sliding door sickle lock according to the first invention, the moving speed adjusting member 22 is provided.
Is constituted by a rack gear 18a provided on the following moving body 18, a pinion gear 23 meshing with the rack gear 18a, and a damper mechanism 24 for imparting rotational resistance to a rotation shaft of the pinion gear 23, so that The return movement period can be secured by adjusting the moving speed of the following moving body 18, and the cost reduction of the sliding door sickle lock by simplification of the structure is promoted.

The damper mechanism 24 can easily adjust the moving speed of the following moving body 18 and, consequently, the bounce prevention period, so that a sickle lock for a sliding door adapted to the actual use condition can be obtained. Becomes

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described based on preferred embodiments.

FIG. 5 shows a door frame X composed of a rectangular frame.
2 shows a state in which a sliding door Y is supported on a threshold Xa located on the lower side of the sliding door Y. The sliding door Y is closed or opened by being pushed and pulled in the directions of the arrows LR, and a sickle lock case 1 having a sickle 11 and the like described later is provided on the sliding door Y side.
On the door frame X side, front plates 8 each having a later-described locking member 9 are arranged, and these members constitute the sliding door sickle lock Z according to the present invention. Less than,
The specific configuration and operating state of the sliding door sickle lock Z will be described.

A: Specific configuration of the sliding door sickle lock Z FIG. 1 is an exploded perspective view of each member constituting the sliding door sickle lock Z, and FIGS. The sectional view for explaining the operation state of the sickle lock Z is shown, respectively.

First, the structure of the sliding door sickle lock Z is shown in FIGS.
This will be described with reference to FIG.

The sickle lock case 1 the sickle lock case 1, as shown in FIGS. 2 to 4, there is to be fitted fixed to the recessed portion 7 that is recessed in the front end surface of the sliding door Y, FIG. 1 As shown in FIG. 1, a first case body 2 in which peripheral walls 2b are provided on three sides of a substantially rectangular flat plate-shaped substrate portion 2a, respectively.
A second case body 3 formed in a substantially rectangular flat plate shape and attached to the first case body 2 so as to face the substrate 2a; and the first case body 2 and the second case body 3 And a front plate 4 provided with a long groove-shaped sickle entry hole 4a and a rectangular hole-shaped projection entry hole 4b.

In the case inner portion 5 of the sickle lock case 1, a sickle 11, a regulating member 14, a rotating member 16, a reciprocating member 17, a following member 18, a moving speed adjusting member 22, etc. Are disposed.

[0025] Kamatai 11 the sickle element 11, be one that is constituted by a plate material having a hook-like form, while the one end portion and hook portion 11a, the regulating member of this other end portion described next The receiving portion 11b corresponds to the engaging portion 14b of the fourteen. Further, a pinion gear 1 is provided near the receiving portion 11b of the sickle body 11.
The pinion gear 12 is rotatably supported by a support shaft 13 erected on the first case body 2 while its axis is perpendicular to the surface direction of the sickle body 11. ing. In the middle of the sickle 11, a spring locking pin 1 is provided.
1c is protruded.

Accordingly, the sickle body 11 is rotatable about the support shaft 13 in the front-rear direction of the sliding door Y. As shown in FIG. As shown in FIG. 3 and FIG. 4, a posture rotated downward and rearward so as to be located closer to the case inner chamber portion 5 than the surface of the case 4 (hereinafter, this posture is referred to as a “latch release posture”). The hook portion 11a is a sickle entry hole 4a of the front plate 4.
(Hereinafter, this posture is referred to as a “hanging posture”), which can be extended to the front and can be hung on the hanging member 9 on the door frame body X side.

The regulating member 14 the regulating member 14, there is to be constituted by the lever, the boss portion 14a is provided on one,
At the other end, there is provided a hooking portion 14b which is engaged with and disengaged from the receiving portion 11b of the sickle body 11. Further, one end surface of the intermediate portion is provided with a first cam surface 14c and a second cam surface 14d continuously. Have been. The restricting member 14 is made swingable by supporting the boss 14a on a support shaft 15 protruding from the first case body 2 side.
The fifth spring 37 attached to this portion is constantly urged to rotate in a direction away from the sickle body 11, and as shown in FIG. The rotation position where the rotation of
This rotation position is referred to as a "regulation release position"), and as shown in FIG. 3, the support body 20 is engaged with the second cam surface 14d, and the hook portion 14b is in the "locking posture". Body 1
A rotation position that locks on the receiving portion 11b of the first and restricts the rotation of the sickle body 11 (hereinafter, this rotation position is referred to as a “regulation position”).
The position is alternatively set between.

The rotation operation member 16 above the rotating operation member 16, be one that is constituted by a plate having a substantially L-shaped planar shape, and the sickle element 11 side of the pinion gear 12 at its one end Meshing gear portion 16b
, And a locking pin 6c protrudes from the other end. The rotation operation member 16 is rotatable by supporting a boss 16a provided at an intermediate portion thereof on a support shaft 28 protruding from the first case body 2 side. The relative positions of the gear portion 16b and the pinion gear 12 are set such that the gear portion 16b meshes with the pinion gear 12 in the support state.

The rotating operation member 16 and the sickle 1
Position holding urging means 36 composed of a leaf spring having a curved form is mounted between the position holding biasing means 36 and the position holding means 36. That is, the posture holding urging means 36 has one end 36a serving as an action point thereof hooked on the spring stopper pin 11c on the sickle body 11 side, and the other end 36b hooked on the support shaft 28 of the rotary operation member 16, respectively. The sickle body 11 is stopped by the spring locking pin 11c (that is,
When the action point 36a) is located below the reference line L passing through the support shaft 13 of the sickle body 11 and the support shaft 28 of the rotary operation member 16 (the state shown in FIG. 2). Is urged in the direction of arrow B (that is, the "unlatched posture" side), while the spring retaining pin 11c is located above the reference line L (the state shown in FIG. 3). Are urged in the direction of arrow A (that is, in the “hanging posture” side).

Further, the other end of the rotating operation member 16 has a locking pin 6c which engages with the advancing and retreating member 17 described below.
The turning operation member 16 is turned in accordance with the forward / backward displacement of the forward / backward moving member 17.

The advance and retreat member 17 the forward and backward movement member 17, substantially having an arm portion 17b of the curved rod-like extending substantially in the orthogonal direction continuously to the end of the body portion 17a and the body portion 17a of the straight rod An L-shaped member,
A pair of guide shafts 29, 3 attached to the main body 17a
0 is provided on the first case body 2 side and a pair of long holes 33 and 3 are provided.
4 and can move in the long axis direction, so that it can be moved forward and backward in a direction perpendicular to the front plate 4. An elongated hole 35 is provided at the tip end of the arm portion 17b, and the locking pin 6c of the rotation operation member 16 is engaged in the elongated hole 35.

On the other hand, the tip of the main body 17a is
7c. The projecting element 17c faces the projecting element entry hole 4b provided in the front plate 4, and projects forward through the projecting element entry hole 4b when the advance / retreat moving member 17 is advanced. (The position shown in FIG. 2 and the position at this time is referred to as “advance position”.) On the other hand, when the advancing / retreating member 17 is retracted, it is immersed near the surface of the front plate 4 (in the state shown in FIG. Therefore, the position at this time is referred to as a “retreat position”). The movement of the moving member 17 toward the "forward position" is performed by the urging force of the posture holding urging means 36, and the movement from the "forward position" to the "retreat position" is performed during the closing operation. This is performed by the sliding door Y approaching the door frame X and the protrusion 17c abutting on the front plate 8.

Further, the main body 1 of the moving member 17
The hook lever 19 is swingably mounted on the inner chamber 17d provided at the intermediate portion of 7a while being supported by the support shaft 31. The hook lever 19 has a hook-shaped hooking portion 19a at one end and a cam portion 19b at the other end side, and is contracted between the cam portion 19b and the advance / retreat member 17. The first spring 25 constantly urges the engaging portion 19a so as to protrude toward the lower surface of the main body portion 17a. The hook lever 1
9 is provided with an engaging pin 32 protruding toward the first case body 2 with the advance / retreat displacement of the advance / retreat moving member 17.
Is engaged with the engaging pin 32, and is rotated against the urging force of the first spring 25, so that the engaging portion 19a is positioned above the lower surface of the main body 17a. It is made to let.

A guide groove 17e which slidably supports the following moving body 18 is provided on the lower surface side of the main body 17a and at a position close to the protruding element 17c.

The follower moving body 18 the follower moving body 18, there is a substantially be composed of straight rod, while the rack gear 18a is provided on a side surface of one end thereof toward said forward and backward moving member to the other end closer A guide portion 18b that fits into the 17 guide groove 17e is provided, and an engaging portion 18c with which the hook portion 19a of the hook lever 19 engages is provided at an intermediate position between the guide portions 18b. Then, the catching member 19a of the hook lever 19 is engaged with the engaging portion 18c of the following moving member 18, and in this state, the reciprocating member 17 retreats from the "advance position" to the "retreat position" side. When displacing, the moving member 1
7, the reciprocating member 17 reaches the "retracted position", the hook lever 19 is rotated by engagement with the engaging pin 32, and the engaging portion 19a is disengaged from the engaging portion 18c. Then, the backward movement is stopped (the state shown in FIG. 3, the position at this time is referred to as a “second position”).

On the other hand, the following moving body 18 is constantly urged by the moving body urging means 26 contracted between the moving member 17 and the forward / backward moving member 17 to move toward the protruding element 17c of the forward / backward moving member 17. I have. The forward movement of the following moving body 18 due to the urging force of the moving body urging means 26 is restricted by the front end surface of the following moving body 18 abutting on the front plate 4 (the state shown in FIG. 2). And the position at this time is referred to as a “first position”).

Further, a guide groove 18d is provided on the opposite side surface of the guide portion 18b so as to be recessed in a direction substantially perpendicular to the longitudinal direction of the following moving body 18. The support body 20 is fitted into the guide groove 18d together with the third spring 27, and the support body 20 is constantly urged in the protruding direction by the urging force of the third spring 27. The first cam surface 14c and the second cam surface 14d are selectively engaged.

The rack gear 18 of the following moving body 18
The pinion gear 23 of the moving speed adjusting member 22 described below meshes with a.

The moving speed adjusting member 22 the moving speed adjustment member 22 has its "second position" the follower moving body 18 by the biasing force of the engagement is released the mobile biasing means 26 of the hook lever 19 From "First
This is for decelerating and adjusting the moving speed when moving to the "position" side, and constitutes the largest feature point of the sliding door sickle lock Z of the present invention. That is, the moving speed adjusting member 22 is connected to the rack gear 18 a of the following moving body 18.
And a damper mechanism 24 that imparts rotational resistance to the rotating shaft of the pinion gear 23 due to the viscosity of the liquid. The moving speed adjusting member 22 is integrally disposed in a damper case 21 attached to the first case body 2 side.

The front plate 8 provided on the door frame X side is made of a plate material having a sickle entry hole 8a corresponding to the sickle entry hole 4a of the front plate 4. On the back side of the sickle entry hole 8a, a hooking member 9 having a sickle entry hole 9b and a hook 9a is integrally fixed. The front plate 8 and the hook member 9 are provided with the recess 6 provided on the door frame X side.
Is fixed to the open end.

B: Operating State of Sliding Door Lock Z Next, the operating state of the sliding door lock Z will be described in accordance with the operating procedure of the sliding door Y.

B-1: At the time of door closing operation The door closing operation is performed when the sliding door Y is opened (ie, when the front surface of the sliding door Y is separated from the door frame X by a predetermined distance or more). This is performed by pulling and moving to the frame X side. At the start of the closing operation, the members provided on the sliding door Y side of the sliding door lock Z are in a state shown in FIG.

That is, since the action point 36a of the posture holding urging means 36 provided on the side of the sickle body 11 is located below the reference line L, the posture of the sickle body 11 is reduced. It is in a state where it is urged and held in the “unlocked posture” by the urging force of the urging means 36. Therefore, the posture holding urging means 36
Is transmitted to the forward / backward moving member 17 via the rotary operation member 16, the forward / backward moving member 17 is set to the “forward position”, and the protrusion 17 c of the front plate 4 enters the protrusion of the front plate 4. It protrudes forward from the hole 4b. Further, the following moving body 18 is set to the “first position” by the urging force of the moving body urging means 26, and the engaging portion 18 c of the following moving body 18 is engaged with the hook 19 a of the hook lever 19.
Is involved. Further, the following moving body 18 is referred to as “first
Position, the support body 20 comes into contact with the first cam surface 14c of the regulating member 14, and the regulating member 14
Is set to the “regulation release position”.

In this state, when the sliding door Y is operated to the closing side and the front surface thereof approaches the door frame X within a predetermined range, the protruding element 17c of the advance / retreat moving member 17 is moved to the door frame X. It comes into contact with the X-side front plate 8 and receives a force in the retreating direction. Accordingly, the advancing / retreating member 17 is gradually retracted from the state shown in FIG. 2 (that is, the state set to the “advance position”), and finally, as shown in FIG. , Front plate 4 of the above sickle case 1)
Retreats until it comes into contact with the front plate 8 on the door frame body X side, and stops at the "retreat position". With the movement of the advance / retreat member 17 from the “advance position” to the “retreat position”, the sickle body 11 opposes the urging force of the posture holding urging means 36 via the rotating operation member 16. , Is swung forward from the “unlocked position” and changed to the “locked position”, and the locking portion 11 a is attached to the front plate 8 on the door frame body X side.
Is set in a state where it can be hooked on the hooking portion 9a of the hooking member 9 provided in the above.

The so-called "bound state" in which the sliding door Y comes into contact with the door frame X and retreats by the reaction force is prevented by setting the sickle body 11 in the "unlocking posture". However, in order to reliably prevent this "bound state", the "unlocking posture" of the sickle body 11 is continued for a predetermined period (that is, until the reaction force is absorbed and no bounce occurs). It is necessary to The sickle body 11 is kept in the “unlatched posture” for a predetermined period by the regulating member 14, the following moving body 18, and the moving speed adjusting member 22.

That is, when the advancing / retreating member 17 reaches the "retreat position", the connection state of the following moving body 18 by the hooking member 9 is released, and the following moving body 18 can move freely. Receives the urging force of the moving body urging means 26 and returns from the “second position” to the “first position”. In this case, the rack gear 1 of the following moving body 18
The rotation shaft of the pinion gear 23 of the moving speed adjusting member 22 meshed with the moving member 8a is provided with a required rotational resistance by the damper mechanism 24. Therefore, the rotational speed, that is, the return speed of the following moving body 18, Speed adjusting member 22
The return speed of the following moving body 18 from the “second position” to the “first position” is smaller than the return speed when directly returning by the urging force of the moving body urging means 26 without providing the moving body. The required travel period is secured. The longer return movement period means that the support body 20 provided on the follower moving body 18 side has the second cam surface 1 of the regulating member 14.
4d, that is, the period in which the regulating member 14 is set in the “hanging position” is long, and as a result, the sickle 11 is moved by the regulating member 14 for a predetermined period. Only in the “hanging position”. Thereby, the bound state of the sliding door Y during the closing operation is reliably prevented. In addition, this bounce prevention action is irrespective of the closing speed of the sliding door Y and the like, and is provided by the operation of each of the above-described members based on a change in the relative position between the sliding door Y and the door frame X. Very high reliability and reliability.

When the follower 18 reaches the "first position" after a predetermined period, as shown in FIG. 14, the support 20 is moved to the first cam surface 14c of the regulating member 14.
The position of the restricting member 14 is changed from the “restricted position” to the “restricted release position”, and the “holding posture” of the sickle body 11 is changed.
From the state to the “unlocked posture”. In this state, the sickle body 11 is held in the “locked posture” by the urging force of the posture holding urging means 36.

B-2: At the time of opening operation The opening operation of the sliding door Y is performed by operating the sliding door Y in the opening direction (that is, in the direction away from the door frame X) in the state shown in FIG. Is performed. That is, when the sliding door Y is pulled in the opening direction, the hook 11a of the sickle 11 receives the operating force and the hook 9a of the hook 9
a, and receives downward rotating power by the cam action of the latch portion 9a, and changes its “latched position” to “latched release position”.
It turns to the side. When the displacement of the sickle body 11 reaches a predetermined value or more, the action point 36a of the posture holding urging means 36 provided on the sickle body 11 moves from the upper side to the lower side of the reference line L, The urging force of the posture holding urging means 36 acts so as to urge the sickle body 11 toward the "latch release posture", and the sickle body 11 is forcibly and automatically moved to the "latch release posture". And the opening operation of the sliding door Y is permitted (the state is as shown in FIG. 2).

At this time, the advancing / retreating member 17 is automatically moved from the "retracted position" to the "advanced position" by the reaction force of the posture holding urging means 36, and is moved to the "advanced position". When the hook lever 19 reaches
"a" engages with the engaging portion 18c of the following moving body 18 to prepare for the next door closing operation.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing the entire configuration of a sliding door sickle according to the present invention.

FIG. 2 is an operation explanatory view of the sliding door sickle lock according to the present invention at the time of a closing operation.

FIG. 3 is an operation explanatory view of the sliding door sickle lock according to the present invention in a bound preventing state.

FIG. 4 is an explanatory view of the operation of the sliding door sickle lock according to the present invention in a temporarily locked state.

FIG. 5 is a perspective view of a sliding door provided with the sliding door sickle according to the present invention.

[Explanation of symbols]

1 is a sickle case, 2 is a first case body, 3 is a second case body, 4 is a front plate, 5 is a case interior, 6 and 7 are recessed portions, 8 is a front plate, 9 is a hook member, 11 Is a sickle, 12
Is a pinion gear, 13 is a support shaft, 14 is a regulating member, 15 is a support shaft, 16 is a rotating operation member, 17 is a reciprocating member, 18
Is a follower, 19 is a hook lever, 20 is a support, 21 is a damper case, 22 is a moving speed adjusting member,
23 is a pinion gear, 24 is a damper mechanism, 25 is a first gear
Spring, 26 is a second spring (moving body urging means), 27 is a third spring, 28 is a spindle, 29 and 3
0 is a guide shaft, 31 is a support shaft, 32 is an engagement pin, 33 and 35 are long holes, 36 is a fourth spring (posture holding urging means), 37 is a fifth spring, 38 and 39 are long holes, L
Is a reference line, X is a door frame, Y is a sliding door, and Z is a sliding door lock.

Claims (2)

[Claims] An engaging member (9) is provided on one side of a sliding door (Y) and a door frame (X) for supporting the sliding door (Y) so as to be able to be pushed and pulled, and on one of the other side. A sickle that is rotatable between a “hanging position” in which the hooking member (9) is hooked and a “hook releasing position” in which the hooking state of the hooking member (9) is released. The body (11) is arranged, and the sickle (11) side is brought into contact with the door frame (X) during the closing operation of the sliding door (Y) to move from the "advance position" to the "retreat position". A moving member (17) that retreats to the side, and the sickle (1) that receives the retreat displacement of the moving member (17).
A rotating operation member (16) for rotating the first member (1) from the "unlatched posture" to the "latched posture"; and the moving member (1) when the moving member (17) is retracted.
7) Alternatively, the moving member (17) or the rotating operation member (16) is combined with the rotating operation member (16) to move from the "first position" to the "second position" integrally with the moving member (17) or the rotating operation member (16). In the "second position", the following moving body (18), which is capable of free movement by releasing the connection, and biases the following moving body (18) to move to the "first position" side. Moving body urging means (26), and the moving body urging means (26) as the following moving body (18) is disengaged from the advance / retreat moving member (17) or the rotation operating member (16). The "second position" by the urging force of
A moving speed adjusting member (22) that adjusts the moving speed when returning from the position to the "first position" side to secure a predetermined returning movement period, and corresponds to the returning movement of the following moving body (18). Is set to the “regulation position” while the following moving body (18) moves from the “second position” to immediately before the “first position”, and is set at the “first position”. Is set to the "restriction release position", and in the "restriction position", the sickle body (11) engages with the sickle body (11) in the "locked posture" to set the "locked posture" of the sickle body (11). From the "locking release position" to the "locking release position", the posture change between the "locking position" and the "locking release position" of the sickle (11) in the "restriction release position". An allowable regulating member (14) and an action point (36a) are set on the sickle (11) and the action point (3 a) moves between one side and the other side of a reference line (L) passing through the support shaft (13) of the sickle (11) and the support shaft (28) of the rotary operation member (16). And a posture holding urging means (36) for selectively urging the sickle body (11) to the "hanging posture" side and the "latch releasing posture" side to hold the posture. A sliding door sickle. 2. The moving body according to claim 1, wherein the moving speed adjusting member is provided with a moving speed adjusting member.
8) and the rack gear (18a) provided in the rack gear (1).
8) A sickle lock for a sliding door, comprising: a pinion gear (23) meshing with the pinion gear (8a); and a damper mechanism (24) for imparting rotational resistance to a rotation shaft of the pinion gear (23).