JPH11101053A - Rail for sash roller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a rail main body from coming off downward from a screw part and passing though the screw part at adjusting the height of the rail main body by enabling the rail main body to move vertically only in a fixed range in a rail cover. SOLUTION: This rail for a sash roller is constituted of a rail main body 1 formed with a sash roller rolling groove on the upper face and a rail cover 2 in which the rail main body 1 is inserted, and it is constructed so that an adjusting screw 3 for adjusting the height of one parts near the center part of the rail main body 1 is threadedly engaged with a screw hole formed on the bottom wall of the sash roller rolling groove or a nut fitted to the bottom wall of the sash roller rolling groove. In this case, grooves are formed on both sides of the rail main body 1 extending in the whole length in the lengthwise direction, and projecting stripes are formed on the inside of both side pieces of the rail cover 2 extending in the lengthwise direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention corrects a sinking near the center of a door roller by height adjustment due to abrasion of the door roller or deformation of a groove bottom wall of a floor surface on which the door roller is laid. The present invention relates to door rails that can be used.

[0002]

2. Description of the Related Art As a conventional rail for this type of door stroller, there is one described as "combination structure of door wheel and wheel" described in Japanese Patent Application Publication No. 243280/1995.

According to the present invention, a screw portion is provided at the center or near the center of the door wheel rail in order to correct the sinking near the center portion of the door wheel rail, and the door wheel is screwed with an adjusting screw screwed with the screw portion. The height of the rail was adjusted.

[0004]

In this type of adjusting screw for adjusting the height of the rail, since the wheel of the door roller rolls on the rail, if the head projects upward, there is a possibility that the wheel of the door roller will contact. Therefore, when the first rail body is horizontal, straight screws are used so as not to come out above the bottom wall of the door rolling groove.

[0005] In the case of a straight screw, if the adjusting screw is continuously rotated for height adjustment, or if the adjusting screw is continuously rotated by mistake, the screw may pass through the threaded portion of the door roller rail and come off from the threaded portion. .

[0006] Once the adjusting screw is removed downward past the screw portion of the door roller rail, there is a problem that the adjusting screw cannot be taken out unless the door roller rail is removed from the rail cover.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to allow a rail body to move up and down only within a certain range within a rail cover so that the height of the rail body can be adjusted so that the rail body passes through a screw portion of the rail body and is lowered from the screw portion. It is an object of the present invention to provide a door rail that does not come off.

[0008]

A rail for a door roller according to the present invention comprises a rail body having a door roller rolling groove formed on an upper surface thereof, and a rail cover into which the rail body is inserted. A door stroller rail in which an adjusting screw for adjusting the height of a part of the door wheel is screwed into a screw hole formed in the bottom wall of the door wheel rolling groove of the rail body or a nut attached to the bottom wall of the door rolling groove. A groove is formed on both sides of the rail body over the entire length in the longitudinal direction, and a protrusion is formed on one side inside the rail cover over the entire length in the longitudinal direction.

[0009]

The adjusting screw is screwed into the screw hole of the nut until the lower end of the screw comes into contact with the bottom piece of the rail cover, and the adjusting screw is screwed with a screwdriver or the like to raise the nut, and the rail is integrated with the nut. The main body is pushed up to adjust the height of the rail main body, and the steps below the grooves on both side surfaces of the rail main body abut on the inner sides of the rail cover to prevent the rail main body from further rising.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a rail for a door car according to the present invention. FIG. 1 is a cross-sectional view of a rail body constituting a rail for a door stroller of the present invention, FIG. 2 is a cross-sectional view of a rail cover also forming a rail for a door stroller of the present invention, and FIG. FIG. 4 is an enlarged sectional view taken along line AA of FIG. 3, and FIG.
FIG. 4 is an enlarged sectional view taken along line AA of FIG. 3 when height is adjusted.

Reference numeral 1 denotes a rail body constituting a rail for a door roller according to the present invention, which has a door roller rolling groove 11 formed on an upper surface thereof, and a bottom wall 1 of the door roller rolling groove 11 substantially at the center of the rail body 1.
2, a screw hole 13 into which an adjustment screw to be described later can be screwed is formed, a step portion is formed between the door wheel rolling groove 11 and the bottom wall 12, and a wheel of the door wheel rolling on the door wheel rolling groove 11. A bulged portion R1 formed at the center of the outer periphery of R is fitted so that the wheel R does not come off the rail main body 1.

A groove 14 is provided on both side surfaces of the rail body 1.
The raised position of the rail main body 1 is restricted by a protrusion of a rail cover described later.

Reference numeral 2 denotes a U-shaped channel-shaped rail cover constituting the rail for a door carriage according to the present invention, wherein outwardly extending flanges 21, 21 are formed at upper ends of both side pieces.
Further, ridges 22, 22 having a semicircular cross section are formed in the longitudinal direction on the inner side of both side pieces.

Reference numeral 3 denotes an adjusting screw for adjusting the height of the rail body 1, which has a hexagonal hole at the upper end of which a hexagonal wrench can be fitted, a head formed with a plus groove into which the tip of a screwdriver can be fitted, and the like. There is no straight screw.

Reference numerals 4 and 4 denote sweeping-out tools attached to both ends of the rail body 1, which are integrally fixed together with the door rail with wood screws when the door rail is laid.

Next, the method of laying a rail for a door car according to the present invention will be described. First, the rail main body 1 cut into required dimensions and having a screw hole 13 formed in a bottom wall 12 at a substantially central portion is combined with the rail main body. Rail cover 2 similarly cut to required dimensions
From the end surface of the rail cover 2 on both sides of the ridge 22,
22 is prepared so that the grooves 14 of the rail body 1 are inserted into the rail 22.

Next, the rail cover 2 on which the rail body 1 is mounted is fitted into a groove formed in advance on the floor of the flooring material F such as a floor or a sill, and then the rail body 1 and the rail cover 2 are fitted. At each end,
The work is completed by fixing to the flooring material F together with the spout 4 using wood screws or anchor bolts.

At the beginning of laying of the rail for a door roller, there is no sinking near the center of the rail body 1, but when sinking near the center occurs due to opening and closing of the sliding door for a long time, the adjusting screw 3 is set with a hexagon wrench. If the screw is screwed with a tool such as a screwdriver, the adjusting screw 3 will not go down any more. Therefore, the screw of the screw hole 13, that is, the rail main body 1 is pushed up by the screw of the adjusting screw 3, and the rail main body 1 sinks. To keep the rail body 1 horizontal.

By continuing to turn the adjusting screw 3, the rail body 1 is raised as shown in FIG.
When the rails a and 14a come into contact with the ridges 22 and 22 of the rail cover 2, the rail body 1 cannot be lifted any more, and
Is not turned, so that the adjusting screw 3 does not come off from the screw portion of the screw hole 13.

[0020]

According to the rail for a door roller according to the present invention, grooves are formed on both side surfaces of the rail body over the entire length in the longitudinal direction.
Since the rail body is configured to be able to move up and down only within a certain range within the rail cover, it passes through the screw part of the rail body when adjusting the height of the rail body like a conventional door roller rail The height can be adjusted with ease without falling off from the bottom.

Also, when laying the rail for the door car, if the silicone resin is poured into the rail cover over the entire length and the rail body is pressed against the silicone resin layer, the silicone resin enters the gap between the rail body and the rail cover. After the silicone resin is cured, the silicone resin acts as a cushioning material, and even if the wheels of the door roller roll on the rail body, no noise is generated between the rail body and the rail cover, and the sliding door is quiet. Can be opened and closed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a rail main body constituting a rail for a door roller according to the present invention.

FIG. 2 is a cross-sectional view of a rail cover constituting the rail for a door roller of the present invention.

FIG. 3 is a plan view showing a laid state of the door car rail of the present invention.

FIG. 4 is an enlarged sectional view taken along line AA of FIG. 3;

FIG. 5 is an enlarged sectional view taken along line AA of FIG. 3 when the height is adjusted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rail main body 11 Door roller rolling groove 13 Screw hole 2 Rail cover 3 Adjustment screw 4 Sweep opening tool

Claims (1)

[Claims] 1. A rail body having a door roller rolling groove formed on an upper surface thereof, and a rail cover into which the rail body is inserted.
An adjusting screw for adjusting the height of a part near the center of the rail body is screwed into a screw hole formed in the bottom wall of the door roller rolling groove of the rail body or a nut attached to the bottom wall of the door roller rolling groove. A door roller comprising: a door rail having a groove formed on both side surfaces of the rail body over the entire length in the longitudinal direction, and a protrusion formed on one inner side of both sides of the rail cover over the entire length in the longitudinal direction. For rails.