JPH116357A - Sash sheave device and fixing device of sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sash sheave device and a fixing device of a sliding door equipped with the sash sheave device which securely stops the sliding door at a stopper position and prevents the sliding door from returning back, in the lower rail even when the level of the wheels is vertically adjusted against the sliding door. SOLUTION: In the fixing device of a sliding door, the sliding door 4 whose sash sheave device 100 provided with a wheel-support frame 2 supporting the wheel 1 is arranged at the lower face, is transferred along the rail 5 with a rail groove 5A guiding the wheel 1 and fixed. A stopper 8 is protruded to the lower part of the wheel-support frame 2 constituting the sash sheave device 100 and a fixing member 7 provided with an elastically and vertically movable fixing part 7A is set at the rail 5 or the extended end thereof and the stopper 8 is detachably fixed in the fixing part 7A when the sliding door 4 is transferred to the closing position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door device mainly applied to sliding doors of fittings and furniture and a sliding door locking device equipped with the sliding door device.

[0002]

2. Description of the Related Art It is generally known to provide a locking device at an end of an upper rail in order to stop a sliding door at a position where the sliding door abuts a vertical frame and closes the door. For example, there is a sliding door locking device described in Japanese Utility Model Publication No. 7-4305. Here, a catch pin is provided at the upper end of the sliding door at the door stop side and protrudes into the rail groove of the upper rail, and at the end of the upper rail, a stop member that comes into contact with the catch pin and stops is provided. In addition, a leaf spring that sandwiches the catch pin from the front and rear of the sliding door is provided on the stop member to prevent the sliding door from returning after the door hits.

[0003]

However, since there is some room between the sliding door and the upper and lower rails for the sliding door to be built, if the locking device is provided only above the sliding door, There is a possibility that the sliding door may go too far on the lower rail side, causing the sliding door to squeeze, or the sliding door to rise on the door stop side, resulting in poor movement. Therefore, it is necessary to provide a locking device also on the lower rail so as to securely stop and lock the sliding door at the door stop position so as to prevent the sliding door from creaking and floating.

The present invention has been made in view of the above circumstances, and even when the wheel level is adjusted up and down with respect to the sliding door, the sliding door is reliably stopped at the door stop position on the lower rail, and It is an object of the present invention to provide a sliding door device capable of preventing a sliding door from returning and a sliding door locking device equipped with the sliding door device.

[0005]

Therefore, in the present invention,
As is clear from the illustrated embodiment, in the door system 100 having the wheel supporting frame 2 which supports the wheel 1, the lower surface of the wheel 1 and the wheel support A stopper portion 8 is formed so as to protrude at a position between the lower surface of the frame 2 and the frame. The door roller device 100 does not have a structure corresponding to the above-described outer frame even when the wheel supporting frame 2 that supports the wheel 1 is mounted so as to be able to move vertically with respect to the outer frame 3. A structure that is pivotally supported by the wheel support frame 2 and does not have a function of adjusting the up and down of the wheels may be used.

It is desirable that the stopper portions 8 are respectively provided at lower portions on the right and left sides of the wheel support frame 2 in the wheel traveling direction. With such a configuration, locking can be performed at the left and right positions of the sliding door, which is advantageous also in terms of sharing parts.

The sliding door locking device according to the present invention, in which the above-mentioned door device 100 is provided at the lower part of the sliding door, is provided with an elastically elastically vertically attached end of a rail 5 having a rail groove 5A through which the wheel 1 is guided. The stopper member 7 having the movable locking portion 7A is attached to the stopper member 8, and the stopper portion 8 is detachably engaged with the locking portion 7A when the sliding door 4 is moved to the closed position. Have been.

In the locking member 7, the distal end of the leaf spring is formed in a substantially mountain shape to form a locking portion 7A, and the base end thereof is fixed to the base end of the rail 5, and the distal locking portion 7A is fixed to the above-mentioned position. It can be shaped to extend into the rail groove 5A or its extension. Further, it is desirable that the stopper portion 8 is loosely inserted into the rail groove 5A, and that the tip of the stopper portion 8 has a substantially V-shaped or substantially trapezoidal shape along the inner wall of the substantially V-shaped rail groove 5A.

The locking member 7 is provided with the tip locking portion 7
In the intermediate portion continuous with A, the rail groove 5A or the upper portion of the extension thereof is substantially in contact with or close to the bottom surface of the contact portion 6B formed like a bridge, and when the sliding door 4 moves to the closed position, When the stopper portion 8 is in contact with the contact portion 6B
It is possible to adopt a structure in which it comes into contact with the end contact surface and engages with the locking portion 7A in a detachable manner. With such a structure, the locking at the same time as the stop of the sliding door can be accurately performed, and the jumping-up and deformation of the locking portion 7A can be prevented.

In the configuration of the present invention, when the sliding door 4 moves to the closed position, the stopper portion 8 of the
However, the front end locking portion 7A of the locking member 7 at the end of the rail 5 is elastically pushed down and engaged, so that the sliding door 4 is stopped at the closed position and is prevented from rebounding. In such a configuration, even when the level of the wheel 1 is adjusted up and down with respect to the sliding door 4,
In the lower rail 5, the sliding door 4 can be reliably stopped at the door stop position, and the sliding door 4 can be prevented from returning.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a sliding door device according to the present invention, and FIG. Basically, the locking device for a sliding door is a door rolling device 100 in which a wheel support frame 2 supporting a wheel 1 is mounted so as to be able to move in a vertical direction with respect to an outer frame 3. , The sliding door 4 is moved along a lower rail 5 having a rail groove 5A having a substantially V-shaped cross section from which the wheel 1 is guided, and is locked at a rail end. Here, a catch piece 6 provided with a rail groove 6A having the same V-shaped cross-sectional shape, which is continuous with the rail groove 5A, is connected to the end of the lower rail 5, and is provided above the rail groove 6A or its extension. Is the contact part 6B
It has.

The door roller device 100 has a case-shaped outer frame 3 having an open lower surface and a rear surface, and a case shape having an open lower surface, and is fitted in the inner space of the outer frame 3 so as to be vertically movable. And a wheel 1 that is supported in the wheel support frame 2 via a shaft 1A. Wheel support frame 2
The vertical protrusions formed on both sides thereof are inserted into the vertical grooves formed on the opposing surfaces on both sides inside the outer frame 3 and guided so as to be movable up and down. A stopper projection 3B for regulating the vertical position of the frame 2 and the wheel 1 is formed.

Further, the door roller device 100 is provided with an elevating plate 10 between the inner back surface of the outer frame 3 and the wheel supporting frame 2.
The elevating plate 10 is rotatable at a fixed position in the outer frame 3, and the protrusion 1 protrudes from the center of rotation of its outer surface.
0A is rotatably inserted into a center hole 3A formed in the front plate of the outer frame 3, and a spiral groove 10 formed in the inner surface of the elevating plate 10.
B, a convex portion 2A protruding from the facing surface of the wheel support frame 2 is inserted. The protrusion 2A of the wheel support frame 2 is rotated by engaging the driver with the driver groove 10C formed on the projection 10A of the lifting plate 10 so as to rotate the screw groove 1C.
The wheel supporting frame 2 moves up and down together with the wheel 1 by being pushed by 0B. In this way,
Although the position of the wheel 1 is adjusted up and down, the configuration and operation of such a stroller device having the function of adjusting the up and down of the wheel are described in Japanese Utility Model Publication No. 8-5264 filed by the present applicant. Same as the structure.

At both ends of the wheel support frame 2 in the traveling direction at the lower portion of the door roller device 100, stopper portions 8, 8 are integrally formed to protrude downward. The lower surfaces of the stopper portions 8, 8 are constant with respect to the rail groove 5A irrespective of the elevation position of the wheel 1. The stopper portion 8 is loosely inserted into the upper portion of the rail groove 5A, and both sides thereof are formed into a substantially inverted V-shaped or substantially inverted trapezoidal tapered surface along the substantially inverted V-shaped tapered surfaces on both sides of the rail groove 5A. The stopper portion 8 can be formed on only one of the traveling directions of the wheel support frame 2 of the door roller device 100.

A locking member 7 having a mountain-shaped locking portion 7A which is elastically movable in the vertical direction is mounted on the catch piece 6, and the sliding door 4 comes to the closed position, and When the stopper portion 8 at the lower portion of the frame 2 comes into contact with an opposing contact surface of a contact portion 6B described later, the stopper portion 8 rides over the locking portion 7A against the elasticity of the locking member 7. It is designed to lock with this. Further, in this embodiment, the locking member 7 is formed of a strip-shaped leaf spring having a base end fixed to the end of the catch piece 6 and an elastic locking portion 7A formed at the free end. The locking portion 7A has a shape in which the tip of a leaf spring is bent into a substantially mountain shape such as a substantially inverted V shape or a substantially inverted U shape. Further, on the base side of the locking member 7, mounting holes 7B and 7C on the distal end side and the proximal end side are formed at intervals in the front-rear direction. Catch piece 6
A bridge plate block-shaped contact portion 6B is provided in the front-rear direction on the upper portion of the rail groove 6A or on an extension thereof, and a boss portion 6D is protruded from a bottom portion in front of the bridge portion (in a direction in which the wheels are closed). Further, a terminal portion 6E having an inverted L-shaped cross section is provided at the front portion.
Are formed. A mounting hole 6C is formed in the boss 6D. Also, a mounting projection 6F is provided on the bottom of the terminal portion 6E.
Is protruding.

In the above-described structure of the catch piece 6 and the locking member 7, the locking member 7 has its base end horizontal along the bottom surface of the contact portion 6B, the upper surface of the boss portion 6D, and the bottom surface of the terminal portion 6E. The mounting hole 7C on the proximal end engages with the mounting projection 6F, and the mounting hole 7B on the distal end and the mounting hole 6C on the boss 6D are inserted.
Is fixed to a lower frame of an opening such as a fitting, a furniture or a building to which the lower rail 5 and the catch piece 6 are attached by a fixing tool 9 such as a screw. The fixing structure of the locking member 7 at the mounting hole 7C on the base end side may be a structure using the mounting hole provided on the catch piece 6 and a fixing tool such as a screw.

In the above sliding door locking device, when the sliding door 4 is closed, the stopper portion 8 comes into contact with the abutting surface of the abutting portion 6B, and at the same time, the lower end of the stopper portion 8 elastically deforms the substantially mountain-shaped top of the locking portion 7A. Push down to get over and lock. In this way, rebound and excessive movement at the closed position of the sliding door 4 are reliably prevented.

In such a configuration, the outer frame 3 is temporarily attached to the sliding door 4, the wheel 1 is fitted into the rail groove 5 A of the lower rail 5, and the wheel support frame 2 is vertically moved with respect to the outer frame 3. Even if the adjustment is performed, the relative position between the wheel 1 and the wheel support frame 2 does not shift in the vertical direction. Accordingly, the vertical relative position of the stopper portion 8 which goes over the elastic locking portion 7A of the locking member 7 is ensured as designed, and the sliding door 4 can be reliably stopped by abutting against the catch piece 6, and the sliding door after the door stops. Can be reliably realized by the locking of the stopper portion 8 by the locking portion 7A.

The mounting of the locking member 7 may be performed by the above-mentioned fixing tool 9 after the insertion, and the positioning and mounting work is easy and accurate.

[0020]

As described in detail above, the present invention provides a door bogie having a wheel supporting frame that supports wheels in front and rear of a lower portion of a sliding door, and attaches the sliding door to a rail groove through which the wheels are guided. In a sliding door locking device which moves along a rail having the rail and is locked at a rail end, the rail or an extension of the rail has a locking portion which is elastically movable in a vertical direction. A locking member is mounted, and at one or both ends of the wheel support frame, a stopper portion that moves over the locking portion against the elasticity of the elastic locking member and locks the locking portion is provided downward. The projection is formed.

Therefore, in such a configuration, even when the wheel level is adjusted up and down with respect to the sliding door, the sliding door is reliably stopped at the door stop position on the lower rail, and the sliding door is prevented from returning. be able to.

Further, the distal end of the stopper portion projects from the lower end of the wheel to the lower end of the wheel support frame and is inserted into the rail groove so that it can smoothly guide as a sliding door opening / closing operation. Opening and closing operation is possible,
It is possible to prevent the sliding door from slipping out during a strong wind or an earthquake. Further, by forming the tip of the stopper portion on a tapered surface substantially along the tapered surface of the inner wall of the substantially V-shaped rail groove, smooth opening / closing operation can be further performed.

Further, the intermediate portion continuous with the elastic locking portion 7A is substantially brought into contact with or close to the bottom surface of the contact portion 6B formed in a bridge shape on the rail groove 5A or the upper portion of the extension thereof,
When the sliding door 4 is moved to the closed position, the stopper 8 on the sliding door 4 side is brought into contact with the contact surface of the end surface of the contact portion 6B so that the stopper 8 is disengageably engaged with the locking portion 7A almost simultaneously. By doing so, locking at the same time as stopping of the sliding door can be accurately performed, and it is possible to prevent the locking portion 7A from jumping up and deforming.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire configuration of a sliding door according to an embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional front view of a main part.

FIG. 3 is an enlarged vertical sectional side view of a main part.

FIG. 4 is an end view of the catch piece.

FIG. 5 is a plan view of the catch piece.

FIG. 6 is a plan view of the locking member.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 door device 1 wheel, 1A shaft 2 wheel support frame, 2A convex portion 3 outer frame, 3A center hole, 3B stopper protrusion 4 sliding door 5 lower rail, 5A rail groove 6 catch piece, 6A rail groove, 6B contact portion, 6C Mounting hole, 6D boss portion, 6E terminal portion, 6F mounting protrusion 7 locking member, 7A locking portion, 7B, 7C mounting hole 8 stopper portion 9 fixing tool 10 elevating plate, 10A protrusion, 10B spiral groove,
10C driver groove

Claims (5)

[Claims] 1. A door stroller device having a wheel support frame that supports a wheel, wherein at least a lower portion of the wheel support frame on the wheel traveling direction side protrudes to a position between the lower surface of the wheel and the lower surface of the wheel support frame. A door roller device characterized in that a stopper portion is formed so as to protrude. 2. A sliding door system in which a sliding door having a wheel supporting frame having a wheel supporting frame on which a wheel is supported is provided on a lower surface of the sliding door so as to move and lock along a rail having a rail groove through which the wheel is guided. In the stopping device, a stopper portion is formed so as to protrude from a lower portion of a wheel supporting frame constituting the door roller device, and a locking portion elastically movable in a vertical direction is provided at an end of the rail or an extension thereof. A locking device for a sliding door, wherein a stopper is mounted, and the stopper portion is detachably engaged with the locking portion when the sliding door moves to a closed position. 3. The locking member has a shape in which a distal end portion of a leaf spring is formed in a substantially mountain shape as a locking portion, a base end side of which is fixed to a base end side of the rail, and a distal locking portion is provided. 3. The locking device for a sliding door according to claim 2, wherein the locking device extends into the rail groove or an extension thereof. 4. The locking member is substantially in contact with or near a bottom surface of an abutting portion formed in a bridge shape on an upper portion of the rail groove or an extension thereof at an intermediate portion continuous with the tip locking portion. When the sliding door is moved to the closed position, the stopper portion comes into contact with the contact surface of the end surface of the contact portion, and the stopper portion is detachably engaged with the locking portion. The locking device for a sliding door according to claim 2 or 3, wherein 5. The locking device for a sliding door according to claim 2, wherein the stopper has a structure in which a tip thereof is loosely inserted into the rail groove.