JP3030296B1 - Latch device for sliding door - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To provide a latch device using a handle of a sliding door, so that a latch of a latch lever can be easily engaged and disengaged without special operation, and has a compact shape. To provide a latch device for a sliding door that can be attached to a glass door without damaging the appearance. SOLUTION: A latch lever 7 pivotally pivoted to the door side at an intermediate portion thereof, and a handle slider formed so as to be urged in the closing direction of the door 1 and slidable in the opening direction of the door 1 are provided. A latch 9 protruding downward is formed at one end of the latch lever 7 so as to be engaged with the door lower frame 3a side, and at the other end, abuts against a part of the handle slider 8;
When the handle slider 8 is slid down, the latch lever 7 is swung about the pivot portion 17 as a fulcrum to form a release projection 11 for raising the latch 9.

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 suitable for a sliding door such as a glass door (in this specification, a sliding door is included). In particular, the sliding door slides due to shaking such as an earthquake. 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 with and fixed to a door frame side so as to prevent furniture and stored articles from popping out when opened.

[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 pop out when sliding doors slide open due to shaking such as an earthquake, and furniture and stored articles are stored. In addition to damage to the components, there is a risk that the furnishings, stored items, etc., which have come out, may hit a person.

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. However, since this type of latch device requires a complicated engagement / disengagement operation, furniture such as a bookcase is used. When used for a sliding door, there is a problem that the usability is significantly deteriorated.

[0005] Further, the conventional latch device has a problem that the appearance is impaired when attached to a glass door because the structure is complicated and bulky.

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 provides a latch device using a handle of the sliding door, thereby enabling a latch lever to be engaged without special operation. An object of the present invention is to provide a sliding door latch device which can be easily detached and can be attached to a glass door in a compact shape without impairing the appearance.

[0007]

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 closed to a door frame side. An intermediate portion has a latch lever pivotally attached to the door side, and has a handle slider urged in the closing direction of the door and slidably formed in the opening direction of the door, and at one end of the latch lever, A latch protruding downward is formed and latched to the lower frame side of the door. At the other end, the latch comes into contact with a part of the handle slider and is pushed down by the slide of the handle slider. Rocks as
Forming a release projection for raising the latch;
To the end face of the rail laid along the door lower frame.
And it said that there was Unishi.

In this latching device for a sliding door, a latch protruding downward is formed at one end of a latch lever and locked to the lower frame side of the door, so that the door is fixed and the sliding door slides due to shaking such as an earthquake. Can be prevented from being opened.

When the sliding door is opened, the release slider formed at the other end of the latch lever is pushed down by sliding the handle slider in the opening direction of the door.
The latch lever is swung with the pivot portion as a fulcrum, and the latch is lifted to release the engagement with the door lower frame, and the door is moved and opened by holding the handle slider. Also, when closing the sliding door, move the door with the handle slider to close it, and release the handle slider, since the handle slider is urged in the closing direction of the door, it returns to the original position, The latch lever is swung with the pivot portion as a fulcrum, and when the latch descends, it is locked on the door lower frame side, and the door can be fixed.

[0010] Further, the latch is laid along the lower frame of the door.
By locking to the end surface of the rail, the rail can be used to guide the door, using the rail laid along the lower frame of the door, and the latch can be locked, reducing the number of parts A compact and inexpensive sliding door latch device can be obtained.

[0011]

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.

1 to 4 show an embodiment of a latch device for a sliding door according to the present invention. This latch device for a sliding door is formed on a pulling portion 2 of a sliding door 1 made of a glass door, and has a configuration in which the sliding door 1 can be fixed in a closed state on a door frame 3 side.

The sliding door 1 has a fitting plate 5 formed below the glass plate 4 so as to be substantially flush with the glass plate 4.
3 and is configured to move on a rail 6 laid along the door lower frame 3a.

The pull portion 2 of the door 1 is fitted with a fitting plate 5
Window portion 2a formed to penetrate through
The latch lever 7 and the handle slider 8 are disposed on the back side of the.

The latch lever 7 has an intermediate portion pivotally attached to the door 1 so as to be swingable along the back surface of the door 1. A latch 9 protruding downward is formed at the closed side end of the door 1 of the latch lever 7.
The closed side end of the door 1 is used as a latch hook 10 and the latch 9 is engaged with the latch hook 10 so that the door 1 can be fixed in a closed state. The other end of the latch lever 7 is formed with a release projection 11 described later.

On the other hand, a handle slider 13 urged in the closing direction of the door 1 by the torsion spring 12 in the closing direction of the door 1 is disposed above the latch lever 7. The handle slider 8 is slidable in the opening direction of the door 1 with respect to the fitting plate 5 within a range of a pin 14 formed on the fitting plate 5 and a long hole 15 of the handle slider 8 into which the pin 14 is inserted. It is arranged. From the handle slider 8, the knob 18 is moved to the door 1 via the window 2a.
Are formed so as to protrude to the front side of the.

In the lower part of the handle slider 8, there is formed a recess 16 into which the release projection 11 of the latch lever 7 is fitted. Each of the concave portion 16 and the release protrusion 11 is formed so as to be gradually lowered toward the closing side of the door 1. As a result, the release projection 11 of the latch lever 7
Is depressed by sliding the handle slider 8 in the opening direction of the door 1 with the knob 18 to swing the latch 9 of the latch lever 7 with the pivot 17 as a fulcrum,
By raising the latch 9, the engagement of the rail 6 with the latch hook 10 is released, and the knob 18 of the handle slider 8 is turned.
To move the door 1 to open it.

The rail 6 serves as a support member for the door 1 and continuously extends from the latch portion 10 at the end thereof.
And, it is laid substantially horizontally along the door lower frame 3a over the moving range of the door roller 13, and is configured to slidably support the raised latch 9.

When the door 1 is to be opened, the handle lever 8 is slid in the opening direction of the door 1 with the knob 18 so that the latch lever 7 can be opened.
The release projection 11 formed at the other end of the latch 9 is pushed down, and the latch lever 7 is swung about the pivotal connection portion 17 as a fulcrum.
Is lifted to release the locking of the rail 6 with the latching portion 10, and as shown in FIG.
The door 1 can be moved and opened by holding the knob 18.

When the door 1 is closed, the door 1 is moved and closed by holding the knob 18 of the handle slider 8, and when the handle slider 8 is released, the handle slider 8 is urged in the closing direction of the door 1. Has returned to its original position,
The latch lever 7 is swung about the pivot 17 as a fulcrum, and the latch 9 is lowered, whereby the latch portion 1 of the rail 6 is moved.
0, and the door 1 can be fixed.

As described above, this sliding door latch device prevents the door 1 from sliding and opening due to shaking such as an earthquake because the door 1 is fixed and not opened unless the handle slider 8 is operated. It is possible to eliminate the danger that stored furnishings, stored items, and the like jump out and damage the furnishings, stored items, and the like, and that the protruded furnishings, stored items, and the like hit a person.

Although the embodiment of the sliding door latch device of the present invention has been described above, the sliding door latch device of the present invention comprises:
The configuration can be appropriately changed without departing from the spirit thereof.

[0023]

According to the latching device for a sliding door of the present invention, a latch is formed at one end of the latch lever so as to protrude downward and is locked to the door lower frame, thereby fixing the door.
Prevents the sliding door from sliding and opening due to shaking such as an earthquake, and the stored furnishings and stored items pop out, causing damage to the furnishings and stored items, and protruding furnishings and stored items. Etc. can be prevented from hitting a person. In particular, since the latch device is provided using the handle of the sliding door, the latch of the latch lever can be easily engaged and disengaged without any special operation, and the glass door has a compact shape. Can be attached without damaging the appearance.

Further, by latching the latch to the end face of the rail laid along the lower frame of the door, the rail laid along the lower frame of the door is used to guide the door. Can be locked, the number of parts can be reduced, and a compact and inexpensive sliding door latch device can be obtained.

[Brief description of the drawings]

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

FIG. 2 is a front view of the same.

FIG. 3 is a right side view of the same.

FIG. 4 is a rear view showing a state where the door is opened.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Door 2 Puller part 2a Window part 3 Door frame 3a Door lower frame 4 Glass plate 5 Fitting plate 6 Rail 7 Latch lever 8 Handle slider 9 Latch 10 Latch part 11 Release projection 12 Spring 13 Door pulley 14 Pin 15 Slot 15 16 recess 17 pivot part 18 knob

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05C 3/30 E05C 17/60 E05C 21/00

Claims (1)

(57) [Claims] 1. A sliding door latch device for fixing a sliding door closed to a door frame side, comprising: a latch lever pivotally pivoted at an intermediate portion thereof to the door side; And a handle slider formed so as to be slidable in the opening direction of the door, and a latch protruding downward is formed at one end of the latch lever to be locked to the door lower frame side, At the other end, it contacts a part of the handle slider,
The latch is pushed down by sliding of the handle slider, and the latch lever is swung about the pivot portion as a fulcrum to form a release projection for raising the latch. The latch is laid along the door lower frame.
A latch device for a sliding door, wherein the latch device is adapted to be locked to an end surface of a rail provided .