JPH09137665A - Traveling device of sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to adjust the disorder of the accuracy of fittings in the crosswise direction of a sliding door by providing a cross section-V-shaped ring-shaped projected part on the outer peripheral surface of a traveling wheel of a sash roller and providing three cross section-V-shaped traveling grooves in parallel and close thereon on the top of a rail. SOLUTION: A sash roller 4, which projects a traveling wheel 7 from the lower end face of a frame 8, is formed with synthetic resin or metal and mounted on the lower end face 3 of a sliding door 2. A cross section-V-shaped ring-shaped projected part 10, which runs along the outer peripheral surface 9 and located at the center of the width of the outer peripheral surface 9, is projectingly provided on the traveling wheel 7. On one hand, three traveling grooves 15, 16 and 17, which are V-shaped in a cross section, are closely provided in parallel to each other almost without any clearance, on the upper end face 14 of a main body 11 of a rail 6 while a flange 12 is provided on the upper end face on both sides and a cushioning material 13 is provided on the lower part. The rail 6 is provided fittingly in a groove board in a floor surface 5 and fixed. Generally, the ring-shaped projected part 10 is fitted in the central traveling groove 15, thereby fitting the sliding door 2. When a fitting disorder is produced in the crosswise direction, the ring-shaped projected part 10 of the traveling wheel 7 is moved along the traveling groove 16 or 17, thereby adjusting the accuracy of fittings.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling device which comprises a door roller attached to a lower end surface of a sliding door and a rail arranged on a floor surface on which the door roller is fitted, for smoothly opening and closing the sliding door. It is a thing.

[0002]

2. Description of the Related Art It has been conventionally performed to smoothly open and close a sliding door by fitting a door roller mounted on a lower end surface of the sliding door onto a rail arranged on a floor surface and running the door roller.

In recent years, for the purpose of making the sliding door stand upright and opening and closing it smoothly, the mounting position of the door roller or the position of the traveling wheels of the door roller is adjusted so that the sliding door can move up and down and in the traveling direction. There is used a door roller with an adjusting function capable of adjusting a thickness direction (hereinafter, referred to as a front-back direction) of a right-angled sliding door.

[0004]

However, the door roller with an adjusting function that has been used conventionally has a complicated mechanism and structure, and the adjusting operation is complicated and troublesome.

The problem to be solved by the present invention is to provide a sliding door traveling device capable of adjusting the standing position in the front-rear direction of the sliding door by a simple method without complicating the structure or mechanism. .

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a cross section V along the outer peripheral surface.
A door roller having traveling wheels in which a letter-shaped annular convex portion is provided,
The rail comprises a plurality of traveling grooves having a V-shaped cross section, which are fitted in the annular projections of the traveling wheels of the door roller, and which are arranged in parallel.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

1 to 4 show a preferred embodiment of the present invention, in which a sliding door traveling device 1 is provided with a door roller 4 attached to a lower end surface 3 of a sliding door 2 and a floor surface (sill) 5. The rail 6 is embedded.

The door roller 4 is rotatably rotatably supported by a traveling wheel 7 made of synthetic resin or metal in a frame body 8 made of synthetic resin or metal with its lower end protruding from the lower end surface of the frame body 8. Has been done.

Further, along the outer peripheral surface 9 of the traveling wheel 7 and at the center of the width of the outer peripheral surface 9, for example, an annular convex portion 10 having a V-shaped cross section having a maximum width and a height of several mm is provided in a protruding manner. ing.

On the other hand, the rail 10 is provided with flanges 12 protruding laterally on the upper edges of both side surfaces of the main body 11, and a cushioning material 13 made of rubber, synthetic rubber or the like is provided on the lower portion of the main body 11. The cushioning material 13 is provided and the running sound,
Absorbs shocks when driving.

Further, three cross sections V in which the annular projections 10 of the traveling wheels 7 are fitted on the upper end surface 14 of the main body 11 respectively.
The V-shaped running grooves 15, 16 and 17 are juxtaposed along the longitudinal direction of the rail 6. These running grooves 15, 16, 1
7 are juxtaposed in parallel with each other with almost no gap.

Then, these three running grooves 15, 16,
The center running groove 15 of the rails 17 is located at the center of the width of the rail 6, and two running grooves 16 and 17 are located on both sides thereof.

The traveling apparatus 1 thus constructed is shown in FIG.
As shown in, the rails 6 are attached to the floor surface (sill) 5 as in the conventional case.
The annular convex portion 10 of the traveling wheel 7 of the door roller 4 embedded in the lower end surface of the sliding door 2 by being fitted in the groove 18 formed in the inner side of the sliding door 2 is normally provided at the center of the three traveling grooves 15, 16, 7. The sliding door 2 is erected by being fitted in the running groove 16 located at.

Then, after that, when the standing in the front-rear direction is misaligned during use, as shown in FIG. 3, the left running groove 16 as viewed from the end face side of the rail 6 or the running groove 16 shown in FIG. As described above, the front and rear direction is adjusted by moving the door roller 4 into the right traveling groove 17 and re-fitting it.

In the above embodiment, the running grooves 15, 16,
By forming the maximum width of 17 to be several mm, there is an effect that fine adjustment in the front-back direction is possible, but the present invention is not limited to this width.

Further, in the above embodiment, the running grooves 15,
By forming only three of the sixteen and seventeen, the structure is simple, so that the rail 6 can be easily formed, and the adjustment range in the front-rear direction can be appropriately adjusted. is there. However, the present invention is not limited to this configuration. For example, the number of running grooves may be two or four or more.

In the above-described embodiment, the sliding door 2 is set up by first fitting the annular projection 10 of the running wheel 7 into the running groove 16 in the center. Needless to say, when the adjustment is required, the traveling groove 15 or the traveling groove 17 may be fitted from the beginning.

[0019]

As described above, according to the present invention, as a means for adjusting the sliding door in the front-rear direction, an annular convex portion having a V-shaped cross section, which abuts along the outer peripheral surface of the traveling wheel of the door roller, is provided near the rail. Since it is to be fitted in any of a plurality of running grooves having a cross-section of the same shape as the annular convex portion arranged side by side, it is of course possible to easily adjust the standing in the front-rear direction, Even if the front and back of the vehicle is not properly erected during use, it can be adjusted by a simple operation of re-fitting the traveling wheels of the door roller to another traveling groove.

Further, according to the present invention, unlike the conventional door roller that can be adjusted in the front-rear direction, the fact that the front-rear direction can be easily adjusted with a very simple structure is not only convenient in manufacture,
An inexpensive traveling device is provided.

In particular, an annular protrusion having a V-shaped cross section, which is provided so as to project from the outer peripheral surface of the traveling wheel, is fitted in a traveling groove having the same V-shaped section, so that the traveling wheel travels reliably without swinging to the left or right. In addition, the lateral width of the fitting portion can be narrowed, and the plurality of running grooves can be arranged very close to each other. As a result, it is not necessary to increase the rail width and fine adjustment is possible.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view when the annular projection of the door roller is fitted into the central running groove in the embodiment shown in FIG.

FIG. 3 is a vertical cross-sectional view when the annular projection of the door roller is fitted into the left running groove in the embodiment shown in FIG.

FIG. 4 is a vertical cross-sectional view when the annular projection of the door roller is fitted into the right running groove in the embodiment shown in FIG.

[Explanation of symbols]

 1 Traveling device 2 Sliding door 4 Door car 6 Rail 7 Wheel 9 Outer peripheral surface 10 Annular protrusion 15 Running groove 16 Running groove 17 Running groove

Claims (1)

[Claims] 1. A door roller having a traveling wheel in which an annular convex portion having a V-shaped cross section is projected along an outer peripheral surface, and a plurality of traveling vehicles having a V-shaped cross section fitted with the annular convex portion of the traveling wheel of the door vehicle. A running device for a sliding door, which is composed of rails with grooves arranged close to each other.