JP2001082020A - Sickle lock device for sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically latch the sickle piece of a sliding door the latch metal fitting on the vertical frame side at closing the sliding door. SOLUTION: This sickle lock device for a sliding door is constituted of a fixed frame 16 provided in the opening part 9 of the style 8 of a sliding door Y, a box-like operating member 14 built in the fixed frame 16 so as to be guided capably of going in and out both the fixed frame 16 and a guide plate 11 fixed to the front face of the style 8, a fixed supporting shaft 18 laterally rotatably bridged on the side walls of the fixed frame 16 under the condition of passing through horizontal guide slotted hole 21 of the box-like operating member 14 and rotatably supporting a sickle piece 17 mounted in the box-like operating member 14, an operating shaft 20 laterally bridged on the side walls of the box-shaped operating member 14 so as to penetrate through the non- circular engaging hole 19 formed on the inner end part 17b of the sickle piece 17, and a cushioning push spring 15 provided in the fixed frame 16 so as to project the extreme end part of the box-shaped operating member 14 from the window part 13 of the guide plate 11 at opening the sliding door, and the sickle piece 17 is rotationally moved following advancing/retreating motion of the box-shaped operating member 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art A sliding door which moves horizontally in a door frame formed in a rectangular shape by upper and lower horizontal frames and a vertical frame, when it collides vigorously with the vertical frame, rebounds, and the sliding door and the vertical frame side of the door frame body. There is a problem that a gap is formed between the vertical frame and the vertical frame. In order to solve such a problem, a conventional Japanese Patent Publication No. 4-75
No. 986 describes an example (automatic closing device). In this embodiment, a relatively large recess is formed at an appropriate portion of a vertical frame facing a vertical frame of a sliding door, an air cylinder or the like is incorporated in the recess in a horizontal direction, and the air cylinder is operated by a pressure medium of the air cylinder. The detection mechanism for detecting the collision of the sliding door is configured by slidably mounting the engagement rod in the cylinder hole.

When the sliding door collides with the vertical frame, the detecting mechanism comprises an elliptical engaging tool fixed so as to protrude from the vertical frame of the sliding door, and the engaging mechanism which moves up and down via a pressure medium. Due to the locking relationship with the rod, the sliding door is restrained when the sliding door is closed.

[0004] However, in the above configuration, a so-called optional automatic closing device must be attached to the vertical frame of the sliding door, separately from the sickle lock device for the sliding door. From the viewpoint of various problems. In particular, since the detection mechanism includes an air cylinder as a constituent element, a recess must be formed in the vertical frame inevitably in relation to the sliding door, so that it has been shunned.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and a first object is that when a sliding door is closed, a sickle of the sliding door is automatically attached to a latch on a vertical frame side. It is to be involved. In this case, the box-shaped operation member provided on the vertical frame of the sliding door smoothly retreats, and the sickle that rotates following the rotation moves rationally into the engaged state. A second object is to be able to automatically and temporarily lock the sickle piece via the restraint of the box-shaped operating member when the sliding door is closed. The third purpose is
Just operate the operation piece located in the handle of the sliding door with your finger,
The lock on the box-shaped operating member can be easily released. A fourth object is that it can be incorporated into a vertical frame of a sliding door.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided a sliding door sickle lock device comprising a fixed frame 1 provided in an opening 9 of a vertical frame 8 of a sliding door Y.
6, a box-shaped operating member 14 incorporated in a fixed frame 16 so as to be guided in and out of both the fixed frame and the guide plate 11 fixed to the front surface of the vertical frame 8, and a box-shaped operating member. The box-shaped operating member 14 is horizontally mounted on a side wall of the fixed frame 16 while passing through the horizontal guide slot 21 of the member 14.
And a side wall of the box-shaped operating member 14 penetrating through a non-circular engagement hole 19 formed in an inner end portion 17b of the sickle 17. And a box-shaped operating member 1 when the sliding door is opened.
4 comprises a shock-absorbing pressing spring 15 provided in a fixed frame 16 so as to project the tip end of the guide plate 11 from the window 13 of the guide plate 11. The sickle piece 17 follows the advance / retreat of the box-shaped operating member 14. And turn.

In the above construction, the movable support shaft 22 guided by the horizontal guide portion 23 formed on the side wall 16b of the fixed frame 16 is integrally provided on the side wall of the box-shaped operating member 14. It is characterized by.

The sliding door sickle lock device according to the present invention comprises a fixed frame 16 provided in the opening 9 of the vertical frame 8 of the sliding door Y, and a guide plate fixed to the front of the fixed frame and the vertical frame 8. 11, a box-shaped operating member 14 incorporated in a fixed frame 16 so as to be freely guided in and out of the fixed frame 16, and a side wall of the fixed frame 16 in a state of passing through a horizontal guide slot 21 of the box-shaped operating member 14. And a non-circular engagement formed on the inner end 17b of the sickle 17 and supporting a sickle 17 mounted in the box-shaped operating member 14 and supporting the sickle 17 in the box-shaped operating member 14. An operating shaft 20 laid horizontally on the side wall of the box-shaped operating member 14 so as to penetrate the hole 19, and a tip end of the box-shaped operating member 14 protrudes from the window 13 of the guide plate 11 when the sliding door is opened. The shock-absorbing pressing spring 15 provided in the fixed frame 16 so that the Sliding member 34, which is disposed on the side and has a lock bar 45 for engaging and disengaging the engaged portion 24 formed on one side wall of the box-shaped operating member 14, and a drive receiving portion 37 for engaging and disengaging the lock bar 45. The sickle piece 17 rotates following the forward and backward movements of the box-shaped operating member 14, and the lock bar 45 retreats into the fixed frame when the sliding door is closed. It is characterized in that the state-operating member 14 is automatically restrained.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A sliding door sickle lock device X shown in the drawings will be described below. In the description of this embodiment, the terms up / down / left / right are based on FIG.

First, before explaining the specific configuration of the sickle lock device X, a latch (strike) 2 attached to a vertical frame 1 of a door frame will be described. The latch 2 has a simple configuration for convenience of explanation.

That is, reference numeral 3 denotes a front plate having screw holes in upper and lower portions, and the front plate 3 is fixed to the vertical frame 1 via a plurality of fixing screws 4. The front plate 3 has a hooking window 5 through which a tip of a sickle piece 17 described later enters and exits. Reference numeral 6 denotes a receiving frame provided in the vertical frame 1 and integrally provided on the front plate 3 via the fixing screw 4. This receiving frame 6 and front plate 3
Is provided with a plate-shaped engaging member 7. Of course, the hook member 7 can be formed in a desired shape.

Next, a specific configuration of the sickle lock device X will be described. This sickle lock device X is incorporated in an opening 9 of a vertical frame 8 of a sliding door Y. Reference numeral 11 denotes a long plate-shaped guide plate which faces the front plate 3 of the above-described latch 2. This guide plate 11 is also fixed to the vertical frame 8 of the sliding door through a plurality of fixing screws 12 similarly to the front plate 3. Reference numeral 13 denotes a rectangular window formed at the center of the guide plate 11 and guiding the operating member 14.

In the present embodiment, the operating member 14 is formed in the shape of a box having an open end, and is provided so as to be able to move in and out of the window 13 of the guide plate 11 or to move forward and backward. Reference numeral 15 denotes a shock-absorbing pressing spring interposed between the right side wall 14a of the box-shaped operating member 14 and the right side wall 16a of the fixed frame 16. The shock-absorbing pressing spring 15 urges the box-shaped operating member 14 in a direction in which the box-shaped operating member 14 protrudes.

Therefore, when the sliding door Y is closed (when the sickle is engaged), the box-shaped operating member 14 retreats against the spring force of the shock-absorbing push spring 15, while when the sliding door Y is open, the shock-absorbing member 14 is closed. The spring pops out to a predetermined position by the return force of the pressing spring 15. With this operation mode in mind, the sickle piece 1 pivotally supported by the box-shaped operation member 14
7 will be described.

The sickle piece 17 is usually in a general form. As shown in FIG. 2, when the sliding door Y is closed, the tip portion 17a corresponding to the engaging portion passes through the engaging window 5 and the receiving frame 6 Get inside. A fixed support shaft 18 pivotally supports a portion of the sickle piece 17 near the center. The fixed support shaft 18 has front and rear side walls of the fixed frame 16 (only the rear side wall is visible in FIG. 2) 16b. Is mounted horizontally.

The sickle piece 17 of this embodiment has a non-circular engaging hole 19 at an upper inner end 17b with respect to the fixed support shaft 18. An operating shaft 20 which is horizontally mounted on a front and rear side wall (only the rear side wall is visible in FIG. 2) 14b of the box-shaped operating member 14 passes through the engaging hole 19 in a loosely fitted state. . The operating shaft 20 is fixed to the fixed frame 16.
Instead, it is integral with the box-shaped operating member 14. Therefore, it moves in the horizontal direction together with the box-shaped operation member 14. Therefore, while the operating shaft 20 is a movable shaft, the supporting shaft 18 located below the operating shaft 20 is a fixed shaft. Therefore, a horizontal guide slot 21 for the fixed support shaft 18 is formed in the front and rear side walls 14 b of the box-shaped operation member 14. The movable support shaft 2 is provided at appropriate positions on the front and rear side walls 14b of the box-shaped operation member 14.
2 is mounted horizontally. The movable support shaft 22 moves the box-shaped operating member 1 so that the box-shaped operating member 14 smoothly advances and retreats.
In this embodiment, the projecting ends are, for example, the front and rear side walls 16 b of the fixed frame 16.
The guide is guided by a horizontal guide portion (horizontal groove, horizontal elongated hole, etc.) 23 formed in the above. An engaged portion (recess, engaging hole, etc.) 24 with which a lock bar of a lock mechanism described below is disengaged is formed at a position near the center of the upper wall 14c of the box-shaped operation member 14. .

In the above configuration, a case will be described in which the scythe piece 17 automatically enters the receiving frame 6 when the sliding door Y is closed, so that a so-called hookable state is established.

FIG. 3 is an explanatory view which is also used as an embodiment of the present invention (the first aspect of the present invention) in which a lock mechanism Z described later is added. As shown in FIG. 3, when the lock bar of the lock mechanism Z is separated from the engaged portion 24 of the box-shaped operation member 14, the box-shaped operation member 14 is free. Therefore, when the sliding door Y is opened, the box-shaped operating member 14 protrudes from the window 13 of the guide plate 11 by the spring force of the buffering spring 15 as shown by the arrow. In this case, although not particularly shown, for example, a locking projection is provided on an appropriate portion of the outer wall surface of the box-shaped operating member 14 so that the box-shaped operating member 14
Protrudes to a predetermined position as indicated by an arrow.

Then, when the sliding door Y is closed, FIG.
As shown by, the front end face 14d of the box-shaped operating member 14 collides with the front plate 3 on the vertical frame 1 side before the sliding door Y is completely closed. Then, the box-shaped operation member 14 starts to retreat into the fixed frame 16 against the spring force of the buffering pressing spring 15. At this time, the sickle piece 17 mounted in the box-shaped operating member 14 via the fixed support shaft 18 is clocked (engaged) about the fixed support shaft 18 as a fulcrum by an operating shaft 20 which moves laterally with the box-shaped operating member 14. Turned in the direction.

Therefore, as shown in FIG. 2, at least immediately before the guide plate 11 of the sliding door Y collides with the front plate 3 on the side of the vertical frame 1, the box-shaped operating member 14 is subjected to the spring force of the buffering pressing spring 15. Since the sickle piece 17 is substantially retracted in opposition, the sickle piece 17 can be automatically hooked to the hook member 7 of the hook 2. As described above, the sickle piece 17 of the present embodiment is provided with the box-shaped operating member 1.
4 to follow the forward / backward movement of No. 4. When the sliding door Y is opened, the operation modes of the box-shaped operation member 14 and the sickle piece 17 are reversed.

By the way, the sickle lock device X of the present invention is also provided with a lock mechanism (including a function for releasing the lock) Z for automatically locking the box-shaped operating member 14 when the sliding door Y is closed. Hereinafter, the lock mechanism Z will be described.

FIG. 6 shows an example of the lock mechanism Z. The lock mechanism Z is provided to restrain the box-shaped operating member 14 that has retreated when the sliding door Y is closed, that is, when the sickle piece 17 is engaged. In this embodiment, the main members of the lock mechanism Z are:
It is arranged at the upper end in the fixed frame 16 and above the box-shaped operation member 14.

That is, reference numeral 30 denotes an operation piece slidably provided in a handle 31 of the sliding door Y. The operation piece 30 has a circular fitting hole 32 formed therein. A projection 33 for finger hanging is formed at one end of the operation piece 30. Three
Reference numeral 4 denotes a block-shaped sliding member incorporated in the fixed frame 16 so as to be movable horizontally. A finger-like portion 35 located on the handle 31 side of the sliding member 34 intersects with the finger-like portion 35 and the operation is performed. Piece 3
There is provided a connecting rod 36 which is fixedly fitted in the 0 fitting hole 32. Reference numeral 37 denotes a lock bar drive receiving portion integrally connected to an end of the finger portion 35. This drive receiving portion 37
Has a space portion 38 in the center, and has the appearance of bending two fingers (for example, the index finger and the middle finger) upward. Then, the engagement protrusion, the tapered surface, the horizontal receiving surface,
It has a splash receiving surface and the like.

Reference numeral 37a denotes a pair of engaging projections formed at the other end (upper horizontal plane) of the sliding body 34. These engaging projections 37a, 37a are provided on the side wall 1 of the fixed frame 16.
6b is engaged with the horizontal guide notch 40, respectively. 37b is a pair of tapered surfaces connected to the upper horizontal plane, and these tapered surfaces 37b, 37b are connected to the lower horizontal receiving surface 37c. 37d is a pair of springs 4
The springs 41, 41 are interposed between the spring receiving vertical surfaces 37 d, 37 d and the inner surface of the right side wall 16 a of the fixed frame 16.

Lastly, reference numeral 45 denotes a lock bar having a lower end portion formed in a pin shape. The lock bar 45 is supported by the above-described lock bar drive receiving portion 37, and its small-diameter lower end portion 45a has a space portion 38. Plugged in. The lower surface of the large-diameter intermediate portion 45b connected to the small-diameter lower end 45a of the lock bar 45 has at least a tapered surface 37b of the drive receiving portion 37,
37b and a portion in sliding contact with the spring receiving vertical surfaces 37d. Also, the large-diameter upper end 45c of the lock bar 45
Is formed with a recess 47 for receiving a vertical spring 46. In this manner, with the lock bar 45 supported by the drive receiving portion 37, the distal end of the pin-shaped lower end 45 a can be engaged with and disengaged from the engaged portion 24 of the box-shaped operating member 14.

In the above configuration, when the sliding door Y is closed as shown in FIG. 2, the lock bar 45 of the lock mechanism Z is pushed by the vertical spring 46 to engage the engaged portion of the box-shaped operating member 14. 24. As a result, simply opening the sliding door Y does not open. The box-shaped operation member 14 is a lock bar 45
Is locked, the sickle lock device X is in a so-called temporary locking state.

Therefore, when trying to open the sliding door Y, it is necessary to cancel the state of the temporary locking. In the case of the present embodiment, since the operation piece 30 is slidably provided in the recess of the handle 31, a finger is put on the handle 31 and at the same time a finger is put on the projection 33 of the operation piece 30. Then, the operation piece 30 is pressed.

Then, as shown in FIG. 5, the block-shaped sliding body 34 slides rightward against the spring force of the pair of springs 41, 41. At this time, the sliding body 34 is also guided by a guide window 48 formed on the right side wall 16a of the fixed frame 16. When the sliding body 34 moves rightward, the lock bar 45 climbs the tapered surfaces 37b, 37b of the drive receiving portion 37. Therefore, the lock bar 45 rises against the spring force of the vertical spring 46 and separates from the engaged portion 24. As a result, when the sliding door Y is opened as shown in FIG. 3, the box-shaped operating member 14 released from the lock bar 45 jumps out of the guide plate 11 by the spring force of the buffering spring 15.

As described above, when the front end surface of the box-shaped operating member 14 hits the front plate 3 on the side of the vertical frame 1 just before the sliding door Y is closed, and thereafter the sliding door Y is closed. Since the lock bar 45 and the engaged portion 24 face each other, the lock bar 45 is lowered by the spring force of the spring 46 and restrains the box-shaped operation member 14 as shown in FIG.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The lock mechanism Z added to the sickle lock device X is disposed above the box-shaped operating member 14 in this embodiment, but may be disposed below depending on the design. Further, in this embodiment, the front side walls of the box-shaped operating member 14 and the fixed frame 16 are omitted for convenience of explanation, but the front side walls are also similar to the rear side walls 14b, 16b. Etc. are formed. Note that the movable support shaft 22 provided on the side wall of the box-shaped operation member 14 may be a simple projection shaft as long as the movable support shaft 22 slides and engages with the horizontal guide portion 23 of the side wall 16 b of the fixed frame 16.

[0031]

As apparent from the above description, the present invention has the following effects. (1) When the sliding door is closed, the sickle of the sliding door automatically engages with the latch on the vertical frame side. In this case, the box-shaped operating member provided on the vertical frame of the sliding door smoothly retreats, and the sickle that rotates following this rotates rationally into the engaged state. (2) When the sliding door is closed, the sickle piece can be automatically temporarily locked through the restraint of the box-shaped operating member. (3) The lock on the box-shaped operation member can be easily released only by operating the operation piece located in the handle of the sliding door with a finger. (4) It can be incorporated in a vertical frame of a sliding door without forming a recess in the vertical frame.

[Brief description of the drawings]

 1 to 6 are explanatory views showing an embodiment of the present invention.

FIG. 1 is a schematic explanatory view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional front view (a drawing serving as a reference for explanation) in FIG. 1;

FIG. 3 is a schematic explanatory view of a box-shaped operating member when the sliding door is opened.

FIG. 4 is a schematic explanatory view showing an operating state of a box-shaped operating member and a sickle piece before the sliding door is closed.

FIG. 5 is a schematic explanatory view of a lock release state of a lock mechanism when an operation piece on a handle side is operated when the sliding door is closed.

FIG. 6 is an exploded perspective view of a lock mechanism.

[Explanation of symbols]

X: sickle lock device, Y: sliding door, Z: locking mechanism, 1: vertical frame,
DESCRIPTION OF SYMBOLS 2 ... Hanging metal fittings, 3 ... Front plate, 5 ... Hanging window, 6 ... Receiving frame, 7 ... Hanging member, 8 ... Vertical frame, 9 ... Opening, 11 ... Guide plate, 13 ... Window, 14 ... Box-shaped operating member, 14d: projecting tip surface, 15: buffering spring, 16: fixed frame, 17: sickle piece, 17a: tip, 17b: inner end, 18: fixed support shaft, 19: engaging hole , 20 ... working shaft, 21 ... horizontal guide slot, 22 ... movable support shaft, 23 ... horizontal guide portion, 24 ... engaged portion, 30 ... operation piece, 31 ... handle, 34 ... sliding body, 37 ...
Drive receiving portion, 38: space portion, 40: horizontal guide notch portion, 4
1, 46: spring, 45: lock bar.

Claims (4)

[Claims] 1. A fixed frame 16 provided in an opening 9 of a vertical frame 8 of a sliding door Y, and a guide plate 11 fixed to the front of the vertical frame 8 and the fixed frame. The box-shaped operating member 14 incorporated in the fixed frame 16 as described above, and is horizontally mounted on the side wall of the fixed frame 16 while passing through the long horizontal guide hole 21 of the box-shaped operating member 14, and A box-like shape is provided so as to penetrate a fixed support shaft 18 that supports the sickle 17 provided in the box-shaped operation member 14 and a non-circular engagement hole 19 formed in the inner end 17 b of the sickle 17. An operation shaft 20 which is horizontally mounted on a side wall of the operation member 14, and a front end portion of the box-shaped operation member 14 provided in the fixed frame 16 so as to project from the window 13 of the guide plate 11 when the sliding door is opened. The sickle piece 17 is provided with a box-shaped operating member 14.
A sliding door sickle lock device, which rotates following the movement of the sliding door. 2. The movable support shaft 22 guided by a horizontal guide portion 23 formed on a side wall 16b of the fixed frame 16 is integrally provided on a side wall of the box-shaped operation member 14. A sliding door sickle lock device. 3. A guide frame 11 provided in the opening 9 of the vertical frame 8 of the sliding door Y and a guide plate 11 fixed to the front of the vertical frame 8 and the fixed frame. The box-shaped operating member 14 incorporated in the fixed frame 16 as described above, and is horizontally mounted on the side wall of the fixed frame 16 while passing through the long horizontal guide hole 21 of the box-shaped operating member 14, and A box-like shape is provided so as to penetrate a fixed support shaft 18 that supports the sickle 17 provided in the box-shaped operation member 14 and a non-circular engagement hole 19 formed in the inner end 17 b of the sickle 17. An operation shaft 20 which is horizontally mounted on a side wall of the operation member 14, and a front end portion of the box-shaped operation member 14 provided in the fixed frame 16 so as to project from the window 13 of the guide plate 11 when the sliding door is opened. And a shock-absorbing pressing spring 15 disposed above or below the box-shaped operation member 14 and having a box-shaped operation. A lock bar 45 for engaging and disengaging the engaged portion 24 formed on one side wall of the member 14;
And a lock mechanism Z having a sliding body 34 having a drive receiving portion 37 for engaging and disengaging the lock member 5. The sickle piece 17 rotates following the forward and backward movement of the box-shaped operating member 14, and the lock bar 45 is a sliding door sickle lock device, characterized in that when the sliding door is closed, the box-shaped operating member 14 which has retreated into the fixed frame is automatically restrained. 4. The operating member 3 according to claim 3, wherein the lock mechanism Z is slidably provided in the handle 31 of the sliding door Y.
0, a block-shaped sliding body 34 slidably provided on the operation piece 30 and the fixed frame 16 against the spring force of the spring 41.
And a lock bar 45 supported by the drive receiving portion 37 of the sliding body 34 so as to be able to move up and down and engaging with and disengaging from the engaged portion 24 of the box-shaped operating member 14. A sickle lock device for a sliding door, comprising: