JP2000320217A - Latch device for sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a latch device for a sliding door, by which a latch for a latch lever is engaged or disengaged simply without special operation by installing the latch device by utilizing a handle section for the sliding door, in which facility is improved, preventing the sliding and opening of the sliding door due to the quakes of an earthquake or the like and which has simple structure and is manufactured at a low cost. SOLUTION: The latch device for the sliding door has a latch lever 4, which has a latch 4a at a front end and in which a base section 4b is attached pivotally, a spring-shaped member 5 integrally connected to the base section 4b of the latch lever 4 and bent in an approximately chevron shape, a handle slider 6 disposed into a handle section 3 for the door 1 in a freely projecting-retreating manner, and a pushing piece 7 pushing the spring-shaped member 5 by the projection and retreating of the handle slider 6, interlocking with the handle slider 6, the latch lever 4 is rocked by the action of the pushed spring-shaped member 5 and the latch 4a is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a latch device for a sliding door, and more particularly to a furniture by sliding and opening a sliding door (including a sliding door in this specification) by shaking such as an earthquake. , So that stored items do not pop out,
The present invention relates to a latch device for a sliding door in furniture such as a bookcase, in which a sliding door can be engaged and fixed to a door frame side.

[0002]

2. Description of the Related Art Conventionally, in the case of a sliding door in furniture such as a bookcase, unlike a hinged door, a latch mechanism is not generally employed in many cases.

[0003] For this reason, in furniture such as a conventional bookcase, furnishings and stored articles are popped out by sliding of the sliding door due to shaking such as an earthquake, and the furnishings and stored articles are damaged. There was a danger that the furnishings, stored items, and the like would hit people.

In order to cope with this, it is conceivable to attach a strong latch device such as that provided in a sliding door of a dwelling unit. In the case of (1), there is a problem that the usability is remarkably deteriorated.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of a sliding door in furniture such as a conventional bookcase and the like, and provides a special operation by providing a latch device using a pulling portion of the sliding door. The latch lever can be easily engaged and disengaged to prevent the sliding door from sliding and opening due to shaking such as an earthquake. It is an object to provide a latch device.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a sliding door latch device of the present invention is a sliding door latch device for fixing a sliding door to a door frame side in a closed state. A latch lever having a base pivotally connected thereto, a spring-like member bent in a substantially rectangular shape integrally connected to the base of the latch lever, and a handle slider disposed to be retractable within a handle of the door. And a pressing piece that presses the spring-like member by retreating the handle slider in conjunction with the handle slider, and the action of the pressed spring-like member swings the latch lever to release the latch. It is characterized by having done. Here, the “substantially V-shape” includes not only the “V-shape” but also a shape having the same spring action as the “U-shape” such as an “arc shape”.

In the sliding door latch device of the present invention having the above structure, the handle-like slider is retracted by the hand inserted into the pulling portion, and the spring-like member is pressed through the pressing piece, so that the spring-like member is pressed. It extends from the bent state, and the latch lever can be swung by the action of the spring-like member to release the latch.

In this case, the latch lever and the spring-like member can be integrally formed of an elastically deformable synthetic resin.

As a result, the number of components can be reduced to simplify the structure, and the manufacturing cost can be further reduced.

A stopper pin is formed in the vicinity of the pivotally attached portion of the latch lever, and a spring-like member is connected to the latch lever through the outside of the stopper pin, so that the spring-like member is released from the pressing of the pressing piece. By positioning the latch lever by contacting with the stopper pin, the positioning of the latch lever after release is ensured despite the simple structure, and the latch engages with the latch hook when the door is closed. Can be performed smoothly.

[0011] Further, the spring-like member is fitted to a contact portion of the spring-like member with the stopper pin so as to wind the stopper pin in a state where the spring-like member is released from the pressing of the pressing piece, and the latch lever is fixed. The spring-like member is extended outwardly by the pressing piece to open outward to form a fitting portion for releasing the fitting with the stopper pin, thereby preventing the latch lever from swinging due to an impact or the like, and inadvertent latching. Can be prevented.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sliding door latch device according to an embodiment of the present invention.

FIGS. 1 to 4 show an embodiment of a latch device for a sliding door according to the present invention. This latch device is provided with a sliding door 1 and a door frame 2
A handle portion 3 fixed to the door 1, a latch lever 4 pivotally attached to a part of the handle portion 3, and a latch lever formed on the door frame 2 side. 4, a latch portion 2 a engaging with the latch 4 a, a spring-like member 5 having one end connected to the latch lever 4, a handle slider 6 disposed in the handle portion 3, and a pressing piece interlocked with the handle slider 6. 7 are provided as main constituent members.

As shown in FIG. 5, the handle portion 3 has a box-shaped handle portion main body 3a having the door frame 2 side and the front surface opened, and a support extending from the handle portion main body 3a to the door frame 2 side. And a plate 3b. The handle portion main body 3a includes a pair of claw pieces 3c slidably supporting a connecting plate 6a of the handle slider 6 described later on the back surface, and a window 3f through which the handle slider 6 penetrates from the back side. Holes 3d, 3d ', 3e, 3e' to which the latch lever 4 and a part of the spring-like member 5 are pivotally formed are formed in the support plate 3b in a vertically symmetrical manner. These holes 3d, 3d ',
The latch device can be formed for a left-opening door by attaching the latch lever 4, the spring-like member 5, and the stopper pin 8 to 3e, 3e 'in a vertically symmetric manner with respect to FIG.

The latch lever 4 is, as shown in FIG.
A latch 4a projecting downward at the tip is provided, and a projection 4c formed on the base 4b is pivotally attached to the lower hole 3e of the support plate 3b of the pull portion 3.

The spring-like member 5 is made of an elastic material formed to be bent in a V-shape, and has one end connected to the base 4b of the latch lever 4 and a projection 5
b is pivotally attached to a hole 3d of the support plate 3b of the pull portion 3. The spring-like member 5 and the latch lever 4 are integrally formed of an elastically deformable synthetic resin such as nylon. The spring-shaped member 5 may be an arc shape or the like in addition to the rectangular shape of the present embodiment.

The handle slider 6 has a window 3 inside the handle 3.
f, and is urged in the closing direction of the door 1 and is disposed so as to be able to retreat in the opening direction of the door 1.
As shown in FIG. 5, a pressing piece 7 is integrally provided via a connecting plate 6a. The handle slider 6 has a coupling plate 6a supported by the claw pieces 3c of the handle main body 3a and a groove 6b formed in a protrusion 3g formed in the handle main body 3a.
Are slidably fitted. Also, in this embodiment,
The handle slider 6 is urged by a spring-like member 5 via a pressing piece 7.

As shown in FIG. 4, when the handle slider 6 is retracted, the pressing piece 7 presses the spring-like member 5 against the inside of the bent portion 5a against elasticity, and the pressed spring-like member 5 extends. The latch lever 4 is swung to release the latch 4a.

In the sliding door latch device of the embodiment having the above-described configuration, the handle slider 6 is retracted by the hand inserted into the pulling portion 3, and the spring-like member 5 is pressed via the pressing piece 7. The spring-like member 5 extends from the bent state, and the extension of the spring-like member 5 causes the latch lever 4 to extend.
Can be swung to release the latch 4a.

The handle slider 6 is urged by the spring-like member 5 via the pressing piece 7, thereby reducing the number of components and simplifying the structure, and reducing the manufacturing cost of the latch device. Can be.

Further, since the latch lever 4 and the spring-like member 5 are integrally formed of an elastically deformable synthetic resin, the number of components is reduced, the structure is simplified, and the manufacturing cost is further reduced. be able to.

On the other hand, in this embodiment, as shown in FIGS. 1 and 4, a stopper pin 8 is formed in the vicinity of the pivotally connected portion of the latch lever 4, and the spring-like member 5 is passed through the outside of the stopper pin 8. It is connected to the latch lever 4, and the spring-like member 5 comes into contact with the stopper pin 8 in a state where it is released from the pressing of the pressing piece 7, so that the latch lever 4 is positioned after being released.

The stopper pin 8 is fitted in the lower hole 3d 'of the support plate 3b of the pulling portion 3, and the spring-like member 5 is formed so as to wind around the stopper pin 8. It has a wearing portion 5c. This fitting portion 5c
In the state where the spring-like member 5 is not pressed by the pressing piece 7 and the door 1 is closed, as shown in FIG. 1, the spring-like member 5 is fitted to the stopper pin 8 to fix the latch lever 4 and prevent its swing. Then, when the spring-like member 5 is pressed by the pressing piece 7, the fitting portion 5c is opened outward by the extension of the spring-like member 5 to release the fitting with the stopper pin 8, as shown in FIG. Then, the latch lever 4 is swung further to release the latch 4a.

With these arrangements, the positioning of the latch lever 4 after release is ensured, the latch 4a is smoothly engaged with the latch hook 2a when the door is closed, and the latch lever 4 swings due to impact or the like. , And careless release of the latch 4a can be prevented.

[0025]

According to the latch device for a sliding door of the present invention, the handle slider is retracted by the hand inserted into the pulling portion, and the spring-like member is pressed via the pressing piece.
The spring-like member extends from the bent state, and by the action of the spring-like member, the latch lever can be swung and the latch can be released. Thus, it is possible to provide a sliding door latch device which is low in manufacturing cost and low in manufacturing cost.

Further, by integrally forming the latch lever and the spring-like member with an elastically deformable synthetic resin, the number of components can be reduced, the structure can be simplified, and the manufacturing cost can be further reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of a sliding door latch device of the present invention.

FIG. 2 is a left side view of the latch device.

FIG. 3 is a plan view of the latch device.

FIG. 4 is a front view showing a state when the latch of the latch device is released.

5A and 5B show a handle portion of the latch device, wherein FIG. 5A is a front view, FIG. 5B is a left side view, and FIG. 5C is a plan view.

6A and 6B show a handle slider and a pressing piece of the latch device, wherein FIG. 6A is a front view and FIG. 6B is a bottom view.

7A and 7B show a latch lever and a spring-like member of the latch device, wherein FIG. 7A is a front view, FIG. 7B is a left side view, and FIG. 7C is a bottom view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sliding door 2 Door frame 2a Latch hook 3 Puller part 4 Latch lever 4a Latch 5 Spring-like member 5a Bending part 5c Fitting part 6 Handle slider 7 Pressing piece 8 Stopper pin

Claims (2)

[Claims] 1. A latch device for a sliding door for fixing a sliding door to a door frame side in a closed state, wherein the latch lever has a latch at a tip and a base is pivotally connected to the latch lever. A connected spring-shaped member that is bent in a substantially rectangular shape, a handle slider that is removably disposed in a handle portion of the door, and the spring-shaped member is retreated by interlocking with the handle slider. A pressing piece for pressing, the latch lever is swung by the action of the pressed spring-like member,
A latch device for a sliding door, wherein a latch is released. 2. The latch device for a sliding door according to claim 1, wherein the latch lever and the spring-like member are integrally formed of an elastically deformable synthetic resin.