JPH08189241A - Lock device of sliding door - Google Patents

Abstract

PURPOSE: To simplify the structure so as to reduce the cost and to improve durability. CONSTITUTION: A stopper 5 and a push button 6 are disposed on a case 4 provided on a frame of a sliding door in such a manner as to be freely projected through a spring 8. The stopper 5 is projected over the case 4 by pressing the push button 6. The stopper 4 and the push button 6 are arranged side by side through a partition wall part 4d in the case 4. Receiving parts 5b, 6b for receiving a roller 7 are formed on the opposite parts of the stopper 5 and the push button 6. The roller 7 is disposed in the receiving parts 5b, 6b, and guide parts 5c, 6c for moving the roller to the counterpart are formed on the rear parts of the receiving parts 5b, 6b. The back of the working side of the stopper 5 is formed as an inclined part 5c.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, various inventions have been made for a lock device used for a sliding door such as a sliding door for both a crescent and an auxiliary locking device. First, a conventional technique disclosed in Japanese Utility Model Laid-Open No. 63-5171 will be described with reference to FIG. 5 as an example of the conventional technique of the auxiliary lock device.

In this prior art, the auxiliary rule is that the outdoor sliding door 11
A housing 12 fixed to the horizontal frame 11a, a first stopper 13 and a second stopper 14 provided in the housing 12,
And a first push button 17 and a second push button 18 for operating them and slide members 19 and 19, and when the push buttons 17 and 18 are not pushed, the push buttons 17 and 18 are retracted by the spring 15. It is biased against the direction.

In this state, when either of the push buttons 17 and 18 is pressed, the slide member 19 is retracted by the guide of the inclined groove 21, so that the locking projection 19b is disengaged from the locking projection 20 of the stopper, and the stopper is released. 13 or 14 is projected by the bias of the spring 15.

When the stopper 13 or the stopper 14 is pressed to be retracted into the holding portion 16, the locking projection 20 rides over the locking projection 19b of the slide member 19 and is locked. Thereby, the housing 12 of the stopper 13 or 14
The immersion state is maintained.

In this way, when the stopper 15 or 16 is projected by the push button 17 or 18 in the state where the sliding sliding door is closed, the indoor sliding door 11 'is stopped.
Or, it is locked to 14 and its sliding is prevented. Therefore, the door can be locked by the stopper 13 or 14 of the auxiliary law in the closed state.

Generally, in such prior art,
Since there are so many parts that make up the auxiliary lock, especially synthetic resin parts, it is necessary to make many molds. As a result, not only the production investment amount becomes large but also the assembly of parts becomes complicated and the cost becomes high. There was a flaw.

[0008]

SUMMARY OF THE INVENTION The present invention was devised to solve the above-mentioned drawbacks of the prior art, and the object of the present invention is to reduce the cost and durability by simplifying the structure of the locking device. The object of the present invention is to provide a device that realizes the improvement of the property.

[0009]

In a lock device for a sliding door according to a first aspect of the present invention, a stopper and a push button are arranged in a case so as to be projectable by elastic members, and the stopper is projected from the case by pressing the push button. In the locking device for the sliding door configured as described above, the stopper and the push button are juxtaposed in the case, and a receiving portion that retracts in a direction opposite to the position of the other party is provided at a part of the facing surface of both the stopper and the push button. Forming an engaging member between the opposing surfaces,
Further, the engaging member is provided movably in the direction of both receiving portions, and a guide portion for moving the engaging member to the other side is formed in a part of each receiving portion, and either the stopper or the push button is provided. The engagement member moves to the receiving portion provided on the other side in a state where the side projects, and is configured to regulate the projection on the other side.

According to a second aspect of the present invention, in addition to the structure of the first aspect of the present invention, when the stopper and the push button are juxtaposed in the case, a partition is provided between the stopper and the push button. The mounting portion of the engaging member is formed on.

According to a third aspect of the present invention, in addition to the configuration of the first aspect or the second aspect of the invention, the sliding door locking device has a back surface on the working side of the stopper as an inclined portion.

[0012]

In the invention described in claim 1, in order to bring into the locked state, by pushing the push button, the engaging member is guided by the guide portion on the stopper side to move to the receiving portion side on the push button side, The restraint of the stopper is released, and the stopper is projected by the elastic body to be in the locked state.

In order to bring the stopper into the unlocked state, the stopper is pushed into the stopper holder by pushing with a hand or a foot, and the engaging member is guided from the receiving portion side of the push button to the guide portion thereof so that the stopper member is guided. Move to the receiving side of. Since the movement of the engaging member is restricted in the same direction as the protruding direction of the stopper, the engaging member is guided by the guide portion on the stopper side to hold the stopper in the stopper holding body.

In the invention described in claim 2, claim 1
In addition to the operation of the invention described in (1), when the stopper and the push button are juxtaposed in the case, the partition member is arranged between the stopper and the push member, and the engaging member is formed by forming the mounting portion of the engaging member on the partition member. Since the movement of the stopper is restricted in the same direction as the protruding direction, the movement of the engaging member between the receiving portions is smooth.

In the invention described in claim 3, claim 2
In addition to the effect of the invention described in (3), the stopper does not lock at all when the pressing force from the back surface is present, and when the pressing force from the back surface disappears, the stopper protrudes to perform the locking operation. Also, in the case of the movement of the sliding door on the indoor side, the movement of the sliding door from the side opposite to the locking action direction is free. Further, with respect to an external force other than the locking direction, the stopper retracts according to the external force.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows a lock device A according to an embodiment of the present invention.
FIG. 4 is a front view of the sliding door in which the door is mounted as seen from the indoor side, and FIG. 4 is a partial perspective view of the sliding door and its vicinity. The lock device A of the present embodiment is an outer sliding door 2 of a sliding sliding door in which an outdoor side sliding door 2 and an indoor side sliding door 3 are built in a frame body 1 as shown in the figure.
It is attached to the lower horizontal frame 2a.

The lock device A is a horizontal frame 2a of the outdoor sliding door 2.
The casing 4 is fixed to the casing 4, a stopper 5 provided in the casing 4, a push button 6 for operating the stopper 5, a roller 7 constituting an engaging member, and the like.

As shown in FIG. 3, the case 4 is fitted and fixed in the vicinity of the right end of the horizontal frame 2a so as to face the indoor side. The case 4 includes a stopper holding portion 4a for holding the stopper 5 so that the stopper 5 can be retracted to the inside of the room, and a push button 6
And a push button holding portion 4b that holds the button so that it can appear and disappear. Both of the holding portions 4a and 4b are formed in a rectangular cross section.

The stopper 5 is formed in a hollow, substantially rectangular shape which fits the stopper holding portion 4a, and has a protrusion protruding outward at the tip thereof. An inclined portion 5d is formed in a curved shape on the back surface of the protrusion on the lock action surface side.

The stopper 5 is held in the stopper holding portion 4a via a spring 8 as shown in FIG. 1 so as to be retractable and retractable, and is urged so as to project toward the room. The spring 8 that constitutes this elastic body is provided on the case 4 and supported by the lid 9. The biasing force of the spring 8 causes the stopper 5 to engage the engaging projection 5a of the stopper holding portion 4a. It projects to the running part side of the indoor sliding door 3 up to the position where it is locked. Then, the indoor sliding door 3 collides with the projecting action surface of the stopper 5 and its sliding is prevented. That is, the sliding door is locked.

When the lock is released, the stopper 5 is pushed back into the case against the spring 8 so that the stopper 5 can be completely retracted. On the other hand, the push button 6 is formed in a hollow quadrangular shape that fits inside the push button holding portion 4b, and is held so as to be retractable inside the push button holding portion 4b. Push button 6 is stopper 5
Similarly to the above, the push button holding portion 4b is always provided by the spring 8 which is provided in the push button holding portion 4b and constitutes the elastic body.
b It is biased outward.

The push button 6 has a locking projection formed on the case 4 or the push button 6 so as not to project from the button holding portion 4b of the push case 4. In this embodiment, the push button 6 does not project outside the case 4 by being locked to a roller 7 which constitutes an engaging member described later. That is, the roller 7 also serves as the locking projection.

If the locking projection 4e for the push button 6 is formed on the case 4, the push button 6 is urged by the spring 8 in the direction against the retracting direction when the push button 6 is not pressed. Moreover, the protrusion is blocked by the locking projection 4e, and the push button 6 is held in the stopper holding portion 4b. However, for convenience of explanation, the push button 6 does not project outside the case 4, but this state is expressed as a projecting state.

A partition is provided between the stopper 5 and the push button 6. In this embodiment, the partition wall 4 which is a part of the case 4
Along with the formation of d, a part of the partition wall 4d is cut out to form a mounting portion 4f of the roller 7 which is an engaging member.

As shown in FIGS. 1 and 2, the stopper 5
On the side surface of the push button 6 side, a receiving portion 5b is formed which is formed by retracting to the side opposite to the position of the push button 6. Further, a receiving portion 6b is formed on the side surface of the push button 6 facing the receiving portion 5b of the stopper 5 so as to face the receiving portion 5b of the stopper 5. The receiving portions 5b and 6b located on both sides of the mounting portion 4f have guide portions 5c for guiding the roller 7 to the receiving portions 5b and 6b, respectively.
6c is formed. The guide parts 5c and 6c are formed by inclined surfaces.

The partition wall 4d and the mounting portion 4f may be formed separately from the case 4. Then, a cylindrical roller 7 having a constant length, which constitutes an engaging member, is arranged in a space formed by the mounting portion 4f of the partition wall 4d and the receiving portions 5b, 6b, and by this arrangement, when unlocked, As shown in FIG. 2, the roller 7 is pressed toward the stopper 5 by the side surface of the push button 6 and is positioned on the receiving portion 5b side of the stopper 5. Therefore, the stopper 5 holds the state in which it does not project against the spring 8.

That is, the roller 7 holds the stopper 5 in the stopper holding frame 4a against the spring 8. When the lock device A for the sliding door is operated, when the push button 6 is pushed and retracted into the case 4 against the spring 8 by the hand or foot, the pressing force of the spring 8 on the stopper 5 side causes the push button 6 to move as shown in FIG. So that the roller 7 is the stopper 5
It moves to the push button 6 side along the inclined surface of the guide portion 5c of the side receiving portion 5b.

As a result, the stopper 5 is not restrained by the movement of the roller 7 to the push button 6 side, and protrudes toward the indoor side as shown in FIG. In this state, the movement of both the indoor side sliding door 3 and the outdoor side sliding door 2 is locked.

To release the locked state, the stopper 5 is largely retracted into the stopper holding portion 4a, and the roller 7 is guided by the inclined surface of the guide portion 6c of the push button 6 side receiving portion 6b and the stopper 15 is pushed. To the receiving section 15b of
As a result, the push button 6 slightly moves to the inside of the room and blocks the movement of the roller 7.

As a result, the stopper 5 becomes the stopper holder 4
It is held in a as shown in FIG. Even if the stopper 5 is pressed inside the case 4 by a slight distance from the locked state,
Unless the roller 7 engages with the receiving portion 5b, the stopper 5 is not restrained by the roller 7 and returns to the locked state.

This means that, for example, even if the smoke return of the opposite sliding door collides with the inclined portion 5d on the back surface of the stopper 5, the lock is not released, and the locking device is not damaged.

The above embodiment shows an example of the sliding door according to the present invention, but the present invention is not limited to this and may be applied to one sliding door. In this case, the lock device is attached to a wall, a pillar or the like near the sliding door.

Although the lock device of the embodiment is most suitable as the auxiliary lock device, it may be adopted as the main lock device. Further, in the embodiment, the lock device including one set of push button and stopper is shown, but two or more sets may be arranged side by side.

Further, in the above embodiment, the roller 7 constituting the engaging member has a cylindrical shape, but it may have one or a plurality of spheres. Further, the engaging member may be pivotally supported by a swing arm provided on the partition wall 4d of the case to be a mounting portion thereof.

[0035]

According to the present invention, the following effects can be obtained by the above configuration. 1. According to the invention described in claim 1, since the engaging member is simply provided between the push button and the stopper, the structure is extremely simple, and there are few malfunctions and assembly is easy. Can be lowered.

2. According to the invention of claim 2, in addition to the effect of the invention of claim 1, since the mounting portion of the engaging member is formed on the partition wall of the case, the configuration is further simplified, and The movement of the engaging member becomes smooth.

3. According to the invention of claim 3, in addition to the effect of the invention of claim 2, with respect to the movement of the indoor side sliding door from the side opposite to the locking direction, without adding any new configuration. In other words, the stopper retracts due to the collision of the indoor sliding door and does not have any locking action, so that the stopper can easily pass through.

This means that even if the lock device of the present invention is always in the operating state, it does not work when the sliding door is closed,
It works only when you try to open it, which is convenient for opening and closing the sliding door.

4. Further, according to the third aspect of the present invention, the external force acts on the stopper from a direction other than the locking direction, and even if the stopper is slightly retracted, the stopper returns to the original locked state, so that the locked state can be reliably maintained. There is no damage to the member on the side of the collision, for example, the sliding door,
The locking device is not damaged either. Therefore, the durability of the sliding door is improved.

[0040]

[Brief description of drawings]

FIG. 1 is a front view of a sliding door equipped with a locking device according to an embodiment of the present invention.

FIG. 2 is a partial perspective view of a mounting portion of the locking device shown in FIG.

FIG. 3 is a horizontal cross-sectional view of the sliding door locking device according to the embodiment of the present invention when unlocked.

FIG. 4 is a horizontal sectional view of the lock device when locked.

FIG. 5 is a horizontal cross-sectional view of a lock device for a sliding door showing a conventional technique.

[Explanation of symbols]

 A ... Lock device 1 ... Frame 2 ... Outdoor sliding door 2a ... Horizontal frame 3 ... Indoor sliding door 4 ... Case 4a ... Stopper holding part 4b ... Push button holding part 4c ..Locking edge 4e..Locking projection 4d..Partition wall 4f..Mounting part 5 ... Stopper 5a..Locking projection 5b..Reception part 5c..Guide part 5d..Slope 6・ ・ ・ Push button 6b ・ Receiving part 6c ・ ・ Guide part 7 ・ ・ ・ Roller 8 ・ ・ ・ Spring 9 ・ ・ ・ Lid 10 ・ ・ ・ Auxiliary law 11 ・ ・ Outdoor sliding door 11a ・ Horizontal frame 11 '・ ・ ya Inside sliding door 12 ··· Housing 13 · · Stopper 14 · · Stopper 15 · · Spring 16 · · Holding part 17 · · Push button 18 · · Push button 19 · · Slide member 19b · Locking projection 20 · · Locking Projection 21 ... Inclined groove

Claims (3)

[Claims] 1. A locking device for a sliding door, wherein a stopper and a push button are arranged in a case so as to be projectable by elastic members, and the stopper is pushed out of the case by pressing the push button. Side-by-side inside, a receiving portion that retreats in the opposite direction with respect to the position of the other party is formed on a part of both facing surfaces of the stopper and the push button, and an engaging member is provided between both facing surfaces. Further, the engaging member is provided movably in the direction of both receiving portions, and a guide portion for moving the engaging member to the other side is formed in a part of each receiving portion, and either the stopper or the push button is provided. A locking device for a sliding door, wherein an engaging member moves to a receiving portion provided on the other side in a state in which the side projects, and restricts the projection on the other side. 2. The sliding door according to claim 1, wherein when the stopper and the push button are juxtaposed in the case, a partition wall is provided between the stopper and the push button, and an engaging member mounting portion is formed on the partition wall. Locking device. 3. The locking device for a sliding door according to claim 1, wherein the back surface of the stopper on the working side is an inclined portion.