JPH10184135A - Lock device for sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent particularly a lock device from being broken at the time of forced opening and the careless closure of a sliding door, regarding a sliding door lock device. SOLUTION: A latch device 80 has a slider 80 and a lock arm 90. A latch strike 50 has a slide groove 51 and a lock wall 55. Also, the slide groove 51 has one side open to the opening of a cabinet. Furthermore, the forward end of the lock arm 90 is provided with an arm part 91. This arm part 91 extends in a curved state from the open side of the slide groove 51 toward the bottom thereof, and comes in contact with the lock wall 55 at the locked position of the lock arm 90, thereby preventing the lock arm 90 from being loosened and detached from the slide groove 51. Also, when more than a required force acts on the lock arm 90 in a direction for opening a sliding door 30, the arm part 91 is flexed, so as to get over the lock wall 55, and parts from the open side of the slide groove 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a sliding door, and more particularly to a locking device for a sliding door which can be prevented from being damaged when the sliding door is forcibly opened or roughly closed. .

[0002]

2. Description of the Related Art The applicant of the present invention has disclosed a sliding door opening direction,
There has already been proposed a lock device for a sliding door in which the operation direction of the lock device is made coincident with that of the lock device so that the lock device can be easily unlocked (for example, Japanese Patent Application No. Hei 8-1550).
No. 46).

[0003]

However, after the above-mentioned lock device was proposed, a new problem occurred which could not be predicted. That is, the child or the like violently opens and closes the slide door, so that the lock device is damaged.

[0004] For example, in a state where the slide door is locked in a closed state by the lock device, there is a case where the slide door is forcibly opened without operating a slider for operating the lock device. At this time, the rotary hook on the slide door side is in a state of being caught in the lock hole on the cabinet side.

[0005] For this reason, since the rotary hook opposes the force for forcibly opening the slide door, an excessive force is applied to the rotation axis of the hook, and the rotation mechanism of the hook may be damaged. . Also, if the cabinet is closed violently and vigorously, it may hit the door on the cabinet side before the rotary hook rotates.

For this reason, when the rotary hook collides with the door stop on the cabinet side, an excessive force is applied to the rotary shaft of the hook, and the rotary mechanism of the hook may be damaged. Therefore, the present invention has been made in view of the above-described new problems, and the object thereof is to:
In the following points. (Claim 1) That is, the invention described in claim 1 aims at the following points.

That is, when the slide door is roughly opened and closed, the locked state is released to prevent the locking device from being damaged. (Claim 2) The invention according to claim 2 is the above-described claim 1.
In addition to the objects of the invention described above, the following objects are provided.

That is, the operability of the slider can be improved. Specifically, by urging the slider in the locking direction, the operation of the slider in the locking direction can be omitted. (Claim 3) The invention according to claim 3 is the above-described claim 1.
Or, in addition to the object of the invention described in claim 2, the following object is intended.

That is, the operability of the slider can be improved similarly to the object of the second aspect of the present invention. Specifically, when the sliding door is closed, the locked state of the latch device is temporarily released,
The operation of the slider when closing the slide door can be reduced.

And, in combination with the invention described in claim 2,
The operation of the slider when closing the slide door can be omitted.

[0011]

[Means for Solving the Problems]

(Features) Each invention described in each claim is made to achieve each of the above-mentioned objects, and the features of each invention are described by using embodiments of the invention shown in the drawings. This will be described below. (Claim 1) The invention according to claim 1 is characterized by the following four points.

First, the latch device (60) includes a slider (80) and a lock arm (90), for example, as shown in FIG. The slider (80) is slidable in the sliding direction of the slide door (30). The lock arm (90)
Is slid up and down by sliding the slider (80) in the direction in which the slide door (30) opens, and at this time, from the locked position (see FIGS. 5 to 7) to the unlocked position (see FIGS. 8 to 10). ).

Second, the latch receiver (50) includes a slide groove (51) and a lock wall (55) as shown in FIG. 3, for example.
The slide groove (51) receives the lock arm (90) and allows the lock arm (90) to slide vertically. The lock wall (55) is located along the slide groove (51). For example, as shown in FIG.
Is prevented from falling out of the slide groove (51).

Third, the slide groove (51) is, for example, as shown in FIG.
As shown in FIG. 6, one surface (for example, the front surface) is open facing the opening (41) of the cabinet (20). Fourth, the distal end of the lock arm (90) is provided with an arm (91), for example, as shown in FIGS. The arm portion (91) is moved from the open surface (for example, the front surface) of the slide groove (51) to the slide groove (5).
In the locked position of the lock arm (90), for example, as shown in FIGS. 5 and 6, the lock arm (90) abuts on the lock wall (55), and the lock arm (90) slides in the slide groove ( 51)
It is to prevent getting out of.

When an excessive force is applied to the lock arm 90 in the direction in which the slide door 30 opens in the direction in which the slide door 30 opens, the arm portion 91, as shown in FIG. And slides out of the open surface (for example, the front surface) of the slide groove (51). (Claim 2) The invention according to claim 2 is the above-described claim 1.
In addition to the features of the invention described above, the following features are provided.

That is, as shown in FIG. 4, for example, the latch device includes an urging means (for example, a spring 100). The urging means (for example, the spring 100) moves the slider (80) to the sliding door (30). ) Is urged toward the closing direction to urge the lock arm 90 from the unlocked position (for example, see FIGS. 9 and 10) toward the locked position (for example, FIGS. 6 and 7). .

As the urging means, for example, a spring
Although (100) is used, the present invention is not limited to this, and a leaf spring or the like may be used. Conversely, by urging the lock arm 90 from the unlocked position (for example, see FIGS. 9 and 10) toward the locked position (for example, see FIGS. 6 and 7), the slider (8)
It is also possible to adopt a configuration in which the sliding door (30) is biased in the closing direction of the sliding door (30). (Claim 3) The invention according to claim 3 is the above-described claim 1.
Alternatively, in addition to the features of the invention described in claim 2, the following features are provided.

That is, the lock wall (55) of the latch receiver (50)
For example, as shown in FIGS. 3 and 4, a tapered surface (56, 93) is provided between the arm portion (91) of the lock arm (90) and the arm portion (91). The arm (90) is slid from a locked position (for example, see FIG. 5) to the unlocked position (for example, see FIG. 8).

The tapered surface (56, 93) is
(50) Lock wall (55) and arm part (91) of lock arm (90)
However, the present invention is not limited to this, and may be provided only in one of them.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION

(Description of the drawings) FIGS. 1 to 10 show an example of an embodiment of the present invention. 1 is a sectional view of a lock device, FIG. 2 is a perspective view of a cabinet, FIG. 3 is a perspective view of a lock device, FIG. 4 is an exploded perspective view of a latch device, FIG. 5 is a front view of the lock device, and FIG. 5 is a sectional view taken along the line VI-VI, and FIG. 7 is a rear view of the latch device of FIG.

8 to 10 show an unlocked state of the lock device. FIG. 8 corresponds to FIG. 5, and is a front view of the lock device.
9 corresponds to FIG. 6 and is a cross-sectional view taken along line IX-IX of FIG. 8, and FIG. 10 corresponds to FIG. 7 and shows a rear view of the latch device of FIG. (Locking Device) In FIGS. 1 to 3, reference numeral 10 denotes a locking device. The locking device 10 is used for a sliding door 30 of a cabinet 20, as shown in FIG.

As shown in FIG. 2, the cabinet 20 has a hollow box-shaped cabinet body 40 having an opening 41 on the front surface, and is slidably attached to the opening 41 of the cabinet body 40. And two sliding doors 30 for opening and closing the door. As shown in FIG. 2, the two slide doors 30 can be opened and closed in a sliding manner.

The lock device 10 includes two slide doors 30 and left and right door stop portions 42 on the left and right sides of the cabinet body 40.
And two are used in total. Each locking device 10
As shown in FIG. 3, the cabinet main body
A latch receiver 50 is attached to the door stop 42 of the forty, and a latch device 60 locked to the latch receiver 50 and attached to the slide door 30 is provided.

The door stop of the cabinet body 40
As shown in FIG. 3, the latch 42 has a substantially rectangular latch receiving hole 43 that opens laterally toward the sliding door 30. And, in the door stop part 42 of the cabinet body 40,
As shown in FIG. 3, a substantially rectangular latch receiving mounting hole 43 that opens laterally toward the sliding door 30 is provided. As shown in FIGS. 5 and 6, the latch receiver 50 is mounted so as to protrude from the door stop 42 of the cabinet body 40. However, the present invention is not limited to this. For example, the latch device 60 enters and exits the latch receiver mounting hole 43. Use it as a hole and install the latch receiving hole
43, the latch receiver 50 may be attached such that the latch receiver 50 is housed inside the cabinet body 40.

In this manner, the latch device 60 is engaged with the latch receiver 50 through the latch receiving mounting hole 43, so that the lock and the release of the lock can be performed. Thus, the latch receiver
When the cabinet 50 is housed inside the cabinet main body 40, the protrusion of the latch receiver 50 from the door stop portion 42 can be eliminated, and the latch receiver 50 becomes a hindrance when taking in and out the stored items of the cabinet main body 40. Such a situation can be prevented.

The latch receiver 50 is connected to the cabinet body 40.
May be housed flush with the door stop portion 42, may be housed so as to be retracted slightly, or may be housed so as to protrude slightly. Also the cabinet body
As shown in FIG. 2, a sliding door 40
A pair of rubber cushion members 44 contacting the upper and lower sides,
Installed.

On the other hand, as shown in FIG. 3, the slide door 30 is provided with a substantially rectangular latch mounting hole 31 opened toward the front. (Latch Device) First, the latch device 60 will be described with reference to FIGS.
This will be specifically described with reference to FIG. The latch device 60 is shown in FIG.
As shown in FIG. 1, when roughly divided, a case 70, a slider 80, a lock arm 90, and a spring 100 are provided, and other parts 80 to 100 are assembled in the case 70 in a unit shape. (Case) The case 70 is buried and fixed in the latch mounting hole 31 of the slide door 30, as shown in FIG.

As shown in FIG. 3, the case 70 fits roughly into the latch mounting hole 31 and
Storage recess 110 for slidably storing in the left and right direction,
Projecting from the periphery of the storage recess 110, the front latch mounting hole 3
A projecting edge 120 which is slightly larger than 1; a projecting edge 130 which alternately projects from the bottom wall of the storage recess 110;
A pair of upper and lower guide pieces 140, 140 extending from the back surface of the bottom wall of the
And

The case 70 has appropriate rigidity and elasticity, and is integrally formed of a thermoplastic resin such as POM. FIG. 4 shows the bottom wall of the storage recess 110.
As shown in the figure, a rectangular notch 111 is provided. Also,
As shown in FIG. 4, the bottom wall of the storage recess 110 is provided with a guide groove 112 that extends from the end face facing the notch 111 to a point in the sliding direction of the slider 80 and guides the slider 80. .

On the upper and lower inner surfaces of the storage recess 110,
As shown in FIGS. 4 and 7, a step 113 for guiding the slider 80 is provided along the sliding direction of the slider 80. 4 and 6, on the left and right outer surfaces of the storage recess 110.
As shown in FIG. 7, a plurality of claws 114 and 115 facing away from the rear surface of the overhanging edge 120 are provided. As shown in FIGS. 4, 6, and 7, one of the claws 114 and 115 is a pair of upper and lower fixed claws 114 and 114 protruding from the outer surface of the storage recess 110 in a saw-tooth shape. Is located on the end face side.

On the other hand, as shown in FIGS. 4 and 7, the other claw 115 is opposed to the fixed claw 114, and has a substantially J shape from the outer surface of the storage recess 110 to the back of the overhanging edge 120. The movable claws 115 are a pair of upper and lower movable claws 115 that are bent and extended. The two movable claws 115 are attached to the latch attachment holes 31 of the slide door 30 using the elasticity of the resin. Then, as shown in FIG. 6, the claws 114, 115 are fitted into the latch mounting holes 31 of the slide door 30, and are fitted around the latch mounting holes 31 between the claws 114, 115 and the rear surface of the overhanging edge 120. Between the front and back.

As shown in FIGS. 4 and 7, a pair of upper and lower spring receiving pieces 131, 131 for guiding the spring 100 are provided on the rear surface of the protruding edge 130. As shown in FIGS. 4 and 7, slider receiving pieces 132, 132 for guiding the slider 80 are provided above and below the upper and lower spring receiving pieces 131, respectively.
As shown in FIG. 4, the upper and lower guide pieces 140 are provided with guide holes 141, 141 into which the upper and lower ends of the lock arm 90 are slidably fitted. (Slider) As shown in FIGS. 4 and 6, the slider 80 is roughly divided into a storage recess 110 of the case 70 and a front plate 81 which is stored in the storage recess 110 so as to be slidable in the left-right direction. A back plate 82 connected to the back surface of the front plate 81 in a U-shaped cross section and located on the back side of the bottom wall through the cutout 111 of the storage recess 110 is provided.

The slider 80 is mounted on the case 70
Similarly to the above, it has appropriate rigidity and elasticity, and is integrally formed of a thermoplastic resin such as POM. As shown in FIGS. 4 to 6, an operation recess 83 is provided on the surface of the front plate 81. Also, on the back of the front plate 81,
As shown in FIGS. 4 and 6, a guide rib 84 that fits into the guide groove 112 of the case 70 is provided. The guide rib 84 slides along the guide groove 112 as the slider 80 slides.

As shown in FIGS. 4 and 7, a pair of upper and lower projections 85, 85 projecting toward the step 113 of the case 70 are provided on the upper and lower edges of the front plate 81, respectively. Each projection 85 contacts each step 113 of the case 70, and the slider 80
Slides along each step 113 along with.
On the other hand, on the side surface of the front plate 81, as shown in FIGS. 4, 6, and 7, a boss portion 86 extending toward the space between the upper and lower spring receiving pieces 131 of the case 70 is provided.

As shown in FIGS. 6 and 7, a spring 100 is passed through the boss 86, and the spring 100 is compressed between the slider 80 and the case 70. And the slider
80 is a spring 100 as shown in FIGS.
Due to the compression restoring force, the latch is located at a position close to the latch receiver 50. At this time, the guide rib 84 of the slider 80
As shown in FIG. 6, the compression restoring force of the spring 100 is received by abutting against the dead end of the guide groove 112 of the case 70.

The guide rib 84 and the guide groove 112 receive the compression restoring force of the spring 100.
The present invention is not limited to this, and another portion of the slider 80 and the case 70 may be in contact with each other. On the other hand, the slider 80
When the sliding door 30 is slid in the opening direction as shown in FIGS.
Compressed between At this time, the boss portion 86 of the slider 80
As shown in FIG. 10, together with the spring 100, the spring fits into the space between the upper and lower spring receiving pieces 131 of the case 70.

As shown in FIGS. 8 and 9, the maximum sliding amount of the slider 80 is regulated by the fact that the laterally protruding end surface of the operation concave portion 83 contacts the inner surface of the storage concave portion 110 of the case 70. . Although the maximum sliding amount of the slider 80 is regulated by the operation concave portion 83 and the storage concave portion 110, the present invention is not limited to this, and another portion of the slider 80 and the case 70 may abut.

Further, on the side surface of the front plate 81, FIG.
As shown in FIG. 6, a pair of upper and lower tongue pieces 87, 87 are provided above and below the boss portion 86 and extend in the same direction as the boss portion 86. Each tongue piece 87 contacts the slider receiving piece 132 of the case 70, and slides along the slider receiving piece 132 as the slider 80 slides. On the other hand, the back plate 82 is
As shown in FIG. 6, the bottom wall of the storage recess 110 of the case 70 is located at a distance from the front plate 81 and within the space between the front plate 81 and the back plate 82.

Then, the back plate 82 has
As shown in FIG. 7, an oblong elongated obliquely to the sliding direction of the slider 80, which converts the horizontal sliding movement of the slider 80 into a vertical movement and transmits it to the lock arm 90. A cam hole 88 having a shape is provided. (Lock Arm) Next, the lock arm 90 is shown in FIGS.
As shown in FIG. 5, a vertically long rod shape is formed, and the upper and lower ends thereof are fitted into the upper and lower guide holes 141 of the case 70, respectively, so that the upper and lower ends are slidably held in the case 70. .

As shown in FIGS. 4, 6 and 7, the lock arm 90 extends in a substantially U-shape toward the latch receiver 50 and is locked by the latch receiver 50.
The slider 80 has a pin 92 that fits into the cam hole 88. Then, the lock arm 90 is connected to the case 70 described above.
Like the slider 80 and the slider 80, it has appropriate rigidity and elasticity, and is integrally formed of a thermoplastic resin such as POM.

As shown in FIG. 4, a tapered surface 93 is formed on the lower edge of the arm portion 91. As shown in FIG. 7, the pin 92 is always located below the cam hole 88, and at this time, the arm 91 is at the lowered position. At this time, the lock arm 90 is at the lock position.

On the other hand, when the slider 80 is slid in the opening direction of the slide door 30, the pin 92 moves up along the cam hole 88 as shown in FIG.
The arm 91 is raised. At this time, lock arm 90
Is in the unlocked position. (Latch Receiver) Next, regarding the latch receiver 50, FIG.
This will be described with reference to FIGS.

As shown in FIGS. 3, 5, and 6, the latch receiver 50 has a main body 52 having a slide groove 51 in which the arm portion 91 of the lock arm 90 can slide up and down, and projects from the main body 52. A flange 53 slightly larger than the latch receiving hole 43 of the cabinet body 40, and a leg 54 projecting rearward from the main body 52 across the flange 53 and fitting into the latch receiving mounting hole 43. ing.

The latch receiver 50 has appropriate rigidity and elasticity, and is integrally formed of a thermoplastic resin such as POM. The slide groove 51 is provided as shown in FIGS.
As shown in FIG. 5, the front surface extends vertically, and the side surface is open toward the front surface on the front side and the latch device 60. As shown in FIGS. 3, 5, and 6, the main body 52 is provided with a lock wall 55 for closing a lower portion of the open side surface of the slide groove 51.
By the arm part 91 of the lock arm 90 being hooked on 55,
The arm portion 91 does not fall out of the slide groove 51.

The lock wall 55 is provided with
As shown in the figure, a tapered surface 56 that is inclined obliquely downward and comes into contact with the tapered surface 93 of the arm portion 91 is provided. When the slide door 30 is closed, the tapered surface 56
8 to raise the arm portion 91 as shown by a two-dot chain line in FIG. In addition,
In the lock position of the lock arm 90, the lock wall 55
As shown in FIG. 5, it is hooked only on the lower half of the arm 91. This is because the upper half of the arm portion 91 is reinforced, and the arm portion 91 is temporarily adjusted according to the vertical height of the lock wall 55.
When the thickness is reduced, the strength is reduced. Of course, if the strength may be low, the arm portion 91 may be thinned in accordance with the vertical height of the lock wall 55. Conversely, if the slide amount of the slider 80 is increased, the lap portion between the lock wall 55 and the arm portion 91 can be enlarged without changing the thickness of the arm portion 91.

As shown in FIGS. 3, 5, and 6, the leg portion 54 is slightly smaller than the latch receiving hole 43 of the cabinet body 40 and has a rectangular periphery.
A plurality of elastic claws 57... Are provided in the present embodiment, which are spaced apart from each other, pass through the latch receiving hole 43 with a reduced diameter, and increase in diameter by elasticity. As shown in FIG. 6, after the elastic claws 57 pass through the latch receiving mounting holes 43,
The diameter is expanded by elasticity, and the front and back surfaces around the latch receiving mounting hole 43 are sandwiched between the flange 53 and the flange 53. (How to use) First, when the opened slide door 30 is closed, the tapered surface 93 of the arm portion 91 is fixed to the tapered surface 56 of the lock wall 55.
, And as shown by a two-dot chain line in FIG.

As a result, the arm portion 91 fits into the slide groove 51 from the open side surface of the slide groove 51 of the latch receiver 50 as shown in FIGS. Also, as shown in FIG. 10, the slider 92 is moved through
The cam hole 88 of 80 is displaced. Therefore, the slider 80 slides in a direction to open the slide door 30, as shown in FIGS.

For this reason, the spring 100 is connected to each of FIGS.
As shown in FIG. 7, the space between the slider 80 and the case 70 is compressed. Therefore, the arm portion 91 rises, and the
When the arm portion 91 falls into the slide groove 51, the arm portion 91 finally descends due to the compression restoring force of the spring 100.

That is, due to the compression restoring force of the spring 100, the slider 80 slides to open and close the slide door 30, as shown in FIGS. For this reason, the cam hole 88 of the slider 80 is displaced, and as shown in FIG.
Is lowered, and the arm portion 91 is lowered integrally with the pin 92. When the arm 91 descends, as shown in FIGS.
When the arm portion 91 contacts the lock wall 55, the sliding door
30 will not open from the closed state and will be locked in the closed state.

Next, to open the closed slide door 30,
What is necessary is just to slide the operation concave part 83 of the slider 80 in the direction to open the slide door 30. When you slide the slider 80,
In the reverse order, slide arm
Exit through the open side of 51. Thereby, the sliding door 30
Is released, and the slide door 30 can be opened using the operation concave portion 83 of the slider 80 as a handle.

On the other hand, when the slide door 30 locked in the closed state is forcibly opened, as shown in FIG. 1, the arm portion 91 is straightly bent by being kicked up by the lock wall 55, It gets out of the slide groove 51 so as to get over the lock wall 55. For this reason, especially before an unreasonable force is applied to the arm portion 91 or the pin 92 which is structurally weak,
The locked state is released, and damage to the arm portion 91, the pin 92, and the like can be prevented.

Also, when the open slide door 30 is vigorously closed, similarly, the arm portion 91 can be kicked up by the lock wall 55 so that the arm portion 91 is flexed linearly and climbs over the lock wall 55. It fits in the slide groove 51. If the momentum is even stronger, the slide door 30 is rebounded and hit by the door stop 42 or the like to open.

Also at this time, the arm portion 91 is straightly bent by being kicked up by the lock wall 55, and
By slipping out of the slide groove 51 so as to get over the 55, the lock device 10 can be prevented from being damaged.

[0054]

Since the present invention is configured as described above, it has the following effects. (Claim 1) According to the invention described in claim 1, the following effects can be obtained.

That is, when the slide door is roughly opened and closed, the locked state is released, and the lock device can be prevented from being damaged. (Claim 2) According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the following effect is obtained.

That is, the operability of the slider can be improved. Specifically, by urging the slider in the locking direction, the operation of the slider in the locking direction can be omitted. (Claim 3) The invention according to claim 3 is the above-described claim 1.
Or, in addition to the effects of the invention described in claim 2, the following effects are obtained.

That is, the operability of the slider can be improved similarly to the effect of the second aspect of the present invention. Specifically, when the slide door is closed, the locked state of the latch device is temporarily released, so that the operation of the slider when closing the slide door can be reduced. In addition, in conjunction with the invention described in claim 2, the operation of the slider when closing the slide door can be omitted.

[Brief description of the drawings]

FIG. 1 is a sectional view of a lock device.

FIG. 2 is a perspective view of a cabinet.

FIG. 3 is a perspective view of a lock device.

FIG. 4 is an exploded perspective view of the latch device.

FIG. 5 is a front view of the lock device.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;

FIG. 7 is a rear view of the latch device of FIG. 5;

FIG. 8 is a front view of the lock device, showing an unlocked state of the lock device and corresponding to FIG. 5;

9 is a sectional view corresponding to FIG. 6 and taken along the line IX-IX of FIG. 8;

FIG. 10 is a rear view of the latch device of FIG. 8 corresponding to FIG. 7;

[Explanation of symbols]

 10 Locking device 20 Cabinet 30 Slide door 31 Latch mounting hole 40 Cabinet main body 41 Opening 42 Door stop 43 Latch receiving mounting hole 44 Cushion member 50 Latch receiving 51 Slide groove 52 Main body 53 Flange 54 Leg 55 Lock groove 56 Taper surface 57 Elastic claw 60 Latch device 70 Case 80 Slider 81 Front plate 82 Back plate 83 Operation recess 84 Guide rib 85 Projection 86 Boss 87 Tongue piece 88 Cam groove 90 Lock arm 91 Arm section 92 Pin 93 Tapered surface 100 Spring 110 Storage recess 111 Notch 112 Guide groove 113 Step 114 Fixed claw 115 Movable claw 120 Overhanging edge 130 Projecting edge 131 Spring receiving piece 132 Slider receiving piece 140 Guide piece 141 Guide hole

Claims (3)

[Claims] 1. A lock device for locking a slide door slidably attached to an opening of a cabinet in a left-right direction in a closed state in which the opening of the cabinet is closed, wherein the lock device is a lock device for the cabinet. A lock device for a slide door, comprising: a latch receiver attached to a door stop, and a latch device locked to the latch receiver and attached to the slide door, wherein the latch device is slidable in a sliding direction of the slide door. A sliding arm, and a lock arm that slides up and down by sliding the slider in a direction in which the sliding door opens, and moves from a locked position to an unlocked position during this sliding. The lock arm slides up and down And a lock wall that is located along the slide groove and that prevents the lock arm from falling out of the slide groove at the lock position of the lock arm. The surface of the lock arm is open facing the opening of the cabinet, and extends from the open surface of the slide groove toward the bottom of the slide groove at the tip of the lock arm, and the lock of the lock arm is extended. In this position, the lock arm contacts the lock wall, prevents the lock arm from falling out of the slide groove, and when an excessive force is applied to the lock arm in a direction in which the slide door opens, the lock wall is disengaged. A lock device for a slide door, comprising: an arm portion which is bent so as to get over the slide groove and comes out of the open surface of the slide groove. 2. The latch device according to claim 1, wherein the slider is urged in a direction in which the slide door closes.
The lock device for a slide door according to claim 1, further comprising an urging means for urging the lock arm from the unlock position to the lock position. 3. A tapered surface for sliding the lock arm from the lock position to the lock release position is provided between the lock wall of the latch receiver and the arm portion of the lock arm. The lock device for a sliding door according to claim 1 or 2, wherein: