JP2002227497A - Drawing device in latch device for door of gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To draw triggers near to a strike after temporary locking in a latch device for a door of a gate in a type that the outer edges of a pair of the triggers are formed in a V shape and the triggers are latched to a horizontal bar. SOLUTION: A sliding base 21 is guided movably in the longitudinal direction in a lock casing, and the triggers are connected to the sliding base through the engaging holes 24 and 24 of the sliding base. Then, a control cam 27 is mounted on an operating shaft 26 penetrated into the lock casing in the thickness direction of the door of the gate, the control cam 27 is fitted into the cam hole 22 of the sliding base 21 as a positive cam, and the operating shaft 26 is rotated after temporary locking and the sliding base 21 is moved backwards.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pulling device (hereinafter, simply referred to as a pulling device) for a latch device attached to a gate such as an accordion door which opens and closes by expanding and contracting.
About.

[0002]

2. Description of the Related Art The present applicant has previously filed Japanese Utility Model Application No. 2-3540.
No. (Registered Model No. 2126822), a lock device for a new gate latch device has been proposed.

As shown in FIG. 1, for example, the latch device described above is mounted on one of a gate 1 and a gate post 2 (shown in FIG. 1).
A strike 5 having a horizontal bar 4 (see FIG. 2) is provided. The pair of sticks 6 and 7 projecting from the latch portion 3 and having a V-shaped outer edge are selectively expanded and detached from the strike bar 4. It is made possible.

[0004]

The above-mentioned proposal by the present applicant relates to a device for locking the locks 6 and 7 so that they do not open when locked, and exhibits a desired function itself. And it has been conventionally used.

However, due to the structure of the latch device described above, in order for the limbs 6 and 7 to operate smoothly, the movable gate 8 of the gate (see FIG. 1) and the fixed-side gate 2 are joined without any gap. It is necessary that the tips of the toes 6 and 7 wrap around the back side of the strike bar 4 (right side in FIG. 2) with a margin.

Then, in the normal state of the latch device, the gate post 2
Inevitably, a gap is formed between the movable gate 8 and the movable post 8, and not only the appearance is poor, but also, for example, there is a disadvantage that the gate rattles when the wind blows.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pulling device in which a movable gate is pulled toward a fixed gate when a locking device is locked to eliminate a gap, thereby solving the above-mentioned disadvantages.

[0008]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a latch which is mounted on one of a gate and a gate, and a strike which is mounted on the other and has a horizontal bar. Each of the latch portions has a hook-like portion formed at the distal end thereof for engaging with a strike bar, and a pair of hooks rotatably supported around a tail end portion. Are opposed to each other so that the outer edges of the hooks form a V-shape, and a pair of hooks are connected so that the hooks open and close in conjunction with the engagement of the guide pins and the long grooves, and In the gate latch device urged in the direction to close the camera, each of the guide holes formed at the tail end of each of the pair of cameras and extending in the front-rear direction, which is the opening and closing direction of the gate, is connected to the lock box of the latch unit. A pair of kama axes planted on the inner surface of the side plate parallel to the gate Each slidably engaged in, to be able to move back and forth direction as a whole a pair of sickle is Te or more,
On the other hand, inside the lock box, a plate-shaped slide base is guided so as to be movable in the front-rear direction so as to partially overlap with the tail ends of the pair of sticks, and a pair of engagement holes formed in the slide base is provided. And the lock and the slide base are integrally connected through the engagement of the connecting pin implanted in the lock, and, on the other hand, the portion of the operating shaft in the lock box that penetrates the lock box in the thickness direction of the gate, Control means for engaging the slide base and driving the slide base in the front-rear direction is mounted.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In FIG. 3, reference numeral 9 denotes a lock box of the latch portion 3 mounted in the movable portal 8, and the lock box 9 is provided with a first and a second pair of bristles 6, 7.

As shown in FIG. 4 and FIG. 5, the first hook 6 is composed of two hooks 11 of the same shape at the tip (left end in the figure) overlapped and caulked with connecting pins 12, 12 and fixed. A first guide hole 13 formed of a plate material and having a long front-rear direction (left-right direction) is formed at a tail end (right end in the figure).

A central portion of the first camera 6 extends in the direction of the second camera 7 (see FIG. 3), and a long groove 14 (vertical direction in FIG. 4) perpendicular to the front-rear direction is formed in this extended portion. Is formed.

Furthermore, the long groove 14 and the first guide hole 13
A guide pin 16 is provided on the back side of the first
Is protruding.

On the other hand, as shown in FIG. 6 and FIG. 7, the second kama 7 is a plate member formed substantially vertically symmetrically with the first kama 6, and two identical parts are overlapped with each other to form a connecting pin. 12, 1
By caulking with 2, the hook 11 is formed vertically symmetrically with the first hook 6.

Further, a first guide hole 13 which has the same shape as that of the first camera and is long in the front-rear direction is opened at the tail end of the second camera 7.

Further, the central portion of the second hook 7 extends in the direction of the first hook 6 (see FIG. 3), and the end of this extended portion is slidable in the long groove 14 (see FIG. 4). Guide pins 16 which can be engaged are implanted.

Further, a second guide hole near the first guide hole 13 is provided.
A connecting pin 15 is provided on the back side of the kama 7 in the same manner as in the first kama 6.

Returning to FIG. 3, the gate 1 of the lock box 9 (FIG. 1)
A pair of cam shafts 18 and 8 are implanted along the vertical direction on the side plate 17 parallel to the side plate 17, and the first guide hole 13 of the first cam 6 is provided on the lower cam shaft 18, The first guide holes 13 of the second bit 7 are slidably engaged with the bit 18.

A guide pin 16 (see FIG. 6) of the second hook is slidably engaged with the long groove 14 (see FIG. 4) of the first hook 6 from the back side.

According to the above-described configuration, the first and second hooks 6 and 7 are attached to the lock box 9 movably in the front-rear direction while being connected via the engagement between the guide pins 16 and the long grooves 14. ing.

A torsion spring 19 as a torsion coil spring is wound around each of the above-mentioned kama shafts 18, and one end of each of the kama springs 19 is on the back surface of the lock box 9, and the other end is on the corresponding step of the kama. It is hung.

The first elasticity of the spring 19 causes the first
3 is clockwise in FIG. 3 around the corresponding shaft 18, and the second brace 7 is counterclockwise, in other words, the lock portions 11, 1 of the pair of bracees 6, 7 are closed. It is being rushed.

On the other hand, as shown in FIG. 3, a slide base 21 is inserted between the side plates 6 and 7 of the lock box.
The slide base 21 is sandwiched between a pair of horizontally long guide protrusions 20 cut from the side plate 17 of the lock box, and is guided to be movable in the front-rear direction.

The slide base 21 is shown in FIGS.
As shown in the figure, the whole shape is a vertically-elongated rectangular thick plate, and a rectangular cam hole 22 is opened at the center. The first guide hole of the cam 6 (7) is provided above and below the cam hole 22. A pair of second guide holes 23, 23 having the same shape as 13 are opened at predetermined intervals.

As shown in FIG. 3, the above-mentioned predetermined interval means that the first guide holes 13, 13 when the stirrups 6, 7 are closed.
Is the same as the interval.

The second guide hole 2 of the slide base
A vertically long engaging hole 24 is opened in front of (left side in FIG. 8) of the third member 3.

The engaging hole 24 corresponds to the connecting pin 15 (see FIGS. 4 to 7) of the hook 6 (7), and has a width capable of slidably engaging with the connecting pin 15. In addition, it has a vertically long shape that allows the connecting pin 15 to move in the vertical direction when the claws 6 and 7 expand.

In FIGS. 8 and 9, the projection formed at the front end of the slide base allows the engagement hole 24 to be close to the front end for convenience of design of the embodiment, and the thickness of this portion becomes thin. Since it has been provided, it is provided for reinforcement, and is not an essential configuration of the present invention.

The rectangular notch formed below the rear end edge of the slide base is for avoiding interference with a stopper 25 (see FIG. 3) described later when the slide base 21 moves backward. This is not an essential configuration of the present invention.

In the slide base 21 having the above structure, the second guide holes 23, 23 are engaged with the cam shafts 18, 18 in a state in which the connecting pins 15 of the hooks corresponding to the engagement holes 24 are engaged. , Are inserted and guided movably in the front-rear direction between the locks 6, 7 and the side plate 17 of the lock box.

On the other hand, as shown in FIG. 3, the cam hole 22 of the slide base mounted in the lock box 9 has a cross section of an irregular shape (square in the illustrated embodiment) penetrating the lock box in the thickness direction of the gate. The operation shaft 26 is loosely fitted.

A control means 27 for engaging the slide base 21 and driving the slide base 21 in the front-rear direction is mounted on a portion of the operation shaft 26 in the lock box 9.

An external operation member such as a knob or a handle (not shown) is attached to a portion of the operation shaft 26 protruding outside the movable gate post 8, and by turning these external operation members by hand, a pull-down operation described later is performed. Perform an approach.

The control means 27 is, in the illustrated embodiment,
As shown in FIGS. 10 and 11, the control cam has a cross section that forms a part of a cylinder that is eccentric to the center of the operation shaft, and has a square hole that fits with the operation shaft 26. The control cam 27 fits into the cam hole 22 of the slide base 21 without any gap in the front-rear direction, and is a so-called positive cam.

In the illustrated embodiment, in addition to the control cam 27, an unlocking cam 28 and a click board 29 are connected to the operation shaft 26 in the lock box 9 along the length of the operation shaft. I have.

The unlocking cam 28 is in the form of a slender arm extending in the radial direction of the operating shaft 26, and faces the centrally extending portion of the first cam 6 from behind as shown in FIG.

As shown in FIG. 12, the click board 29 is a disc-shaped body having large and small oval-shaped flanges connected to each other, and a click spring shaft 31 protruding from the inner surface of the lock box (see FIG. 3).
One end of a click spring as a torsion coil spring wound around the elastic member is in elastic contact with the straight portion of the smaller oval flange of the click board, thereby giving a click feeling to the operation of the control cam 27. Is not a required configuration.

In FIG. 3, reference numeral 33 denotes a locking cam. The locking cam 33 is connected to an inner cylinder of a cylinder lock (not shown) mounted on the outer surface side of the movable portal 8 and has an upper end of the second cam 7. It faces the edge so that it can be engaged.

When the movable gate 8 moves to the left in FIG. 3 during operation, that is, when the gate is closed, the pulling device according to one embodiment of the present invention having the above-described structure is used. The tip portions forming the V-shape of 6 and 7 first contact the strike bar 4.

Nevertheless, if the movable gate post 8 is further moved to the left, the wedge action between the bar 4 and the outer edge of the V-shaped kama causes the kama 6, 7 as shown in FIG. Automatically expands, and finally, as shown in FIG. 14, the tip of the stick crosses over the bar 4 and the latch portion 3 is temporarily locked.

At this time, as shown in FIG. 14, a dust (gap) δ of several mm is provided between the strike 5 and the movable post 8.
Occurs as described above.

In this state, the operating shaft 26 is moved counterclockwise by one.
When turned by 80 degrees, as shown in FIG. 15, as a result of the control cam 27 pushing the slide base 21 backward, the first and second cams 6, 7 connected to the slide base 21 via the connection pins also move backward. , The movable gate 8 relatively contacts the strike 5, and the dust δ becomes zero.

FIG. 15 shows a state in which the cylinder lock is locked and the locking cam 33 is rotated to an angular position where the locking cam 33 comes into contact with the second boom 7. In this fully locked state, the booms 6, 7 are expanded. Since it is impossible, the engagement between the bar 4 and the latch portion 3 is not released.

Further, the pulling device in the illustrated embodiment does not require locking the cylinder lock as shown in FIG.
As a result of the tail end of the first boom 6 engaging with the stopper 25 in the pulled state, the first boom 6 and the second boom 7 associated therewith are engaged.
Cannot be expanded.

To release the pulling device, the operating shaft 2
When the knob 6 is rotated clockwise, the control cam 27 pushes the slide base 21 forward, thereby releasing the pulled state.

Then, after returning the control cam 27 to the angular position shown in FIG. 3, when the operating shaft 26 is further rotated clockwise, as shown in FIG. Since the extending portion is pushed forward, the first kama and the second kama 7 interlocking with the first kama are expanded and free from the bar 4.

The present invention is not limited to the illustrated embodiment and can be implemented in various modifications.

For example, the control means 27 may be constituted by a pinion (not shown) mounted on the operation shaft 26 and a rack (not shown) formed on the slide base, instead of the positive cam.

[0048]

As is apparent from the above description, the present invention guides the first and second hooks, which expand in conjunction with each other, to be movable in the front-rear direction in the lock box. The first base and the first base are connected to each other so as to be movable so that the slide base is moved rearward by control means mounted on an operation shaft that can be rotated from the outside. Therefore, the desired function of pulling the latch portion toward the strike after the engagement between the comb and the bar of the strike can be exhibited.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an outline of an accordion door to which a pulling device according to the present invention is applied.

FIG. 2 is an external perspective view of a strike.

FIG. 3 is a partial cross-sectional side view of a latch unit provided with a pulling device according to one embodiment of the present invention.

FIG. 4 is a plan view of a first comb.

FIG. 5 is a side view of the first kama.

FIG. 6 is a plan view of a second comb.

FIG. 7 is a side view of the second hook.

FIG. 8 is a plan view of a slide base.

FIG. 9 is a side view of the slide base.

FIG. 10 is a plan view of a slide base on which control means is mounted.

FIG. 11 is a partial cross-sectional side view of a slide base to which control means is attached.

FIG. 12 is a plan view of a click board.

FIG. 13 is a partial cross-sectional side view of the latch portion, similarly to FIG. 3;
3 shows an operation start state of the latch unit.

FIG. 14 is a partial cross-sectional side view of the latch portion, similarly to FIG. 3;
4 shows a temporary locked state of the latch unit.

FIG. 15 is a partial cross-sectional side view of the latch unit, similarly to FIG. 3;
This shows the locked state of the latch unit.

FIG. 16 is a partial cross-sectional side view of the latch portion, similarly to FIG. 3;
4 shows an unlocked state of the latch unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gate 2 Gate pillar 3 Latch part 4 Bar 5 Strike 6 1st kama 7 2nd kama 8 Movable portal 9 Lock box 11 Hook-shaped part 13 1st guide hole 14 Long groove 15 Connection pin 16 Guide pin 17 Side plate 18 Kama shaft 21 Slide base Reference Signs List 22 cam hole 23 second guide hole 24 engagement hole 26 operating shaft 27 control means

Claims (1)

[Claims] 1. A latch mounted on one of a gate and a gate post, and a strike mounted on the other side and having a horizontal bar, wherein the latch has a hook engaged with the bar of the strike. Each of the hook-shaped portions has a V-shape formed by forming a pair of cams that are rotatably supported around the tail end. In addition to the above, a pair of hooks are connected so that the hook-shaped portion is opened and closed in conjunction with the engagement of the guide pin and the long groove, and a gate latch device biased in a direction to close the pair of hooks, Each of a pair of kama shafts formed at the tail end of each kama, and each of the guide holes long in the front-rear direction, which is the opening and closing direction of the gate, is implanted on the inner surface of the side plate parallel to the gate of the lock box of the latch portion. Slidably engage with each other so that the pair of On the other hand, a plate-shaped slide base is guided inside the lock box so as to be movable in the front-rear direction so as to partially overlap with the tail ends of a pair of sticks. An operation shaft that integrally connects the lock and the slide base through engagement between the pair of formed engagement holes and the connection pin that is implanted in the lock, while penetrating the lock box in the thickness direction of the gate. In the part inside the lock box,
A pulling device in a gate latch device, further comprising control means for engaging with the slide base and driving the slide base in the front-rear direction.