JP2001003632A - Slide member for sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide member usable for a long period instead of a door roller which allows the smooth opening and closing of a sliding door even if it is worn by sand or dust by providing the slide member moving on a rail according to the opening and closing of the sliding door on the lower part of the sliding door, and sliding the contact part with the rail of the slide member on the rail according to the opening and closing the sliding door. SOLUTION: A slide member 2 having a sliding material 4 adhered to the inner surface of a substantially U-shaped sectional main part 3 opened down is attachably and detachably mounted in a plurality of positions of the lower part of an entrance screen door as a sliding door. The main part 3 of the slide member 2 is formed of a plastic material such as polypropylene or polyethylene terephthalate or a metallic material such as aluminium, and the sliding material 4 is formed of a plastic material with low friction coefficient, for example, tetrafluoride resin. Both side parts of the slide member 2 in the single state are opened in substantially open angle shape with a width larger than a mounting groove in the lower part of the screen door. When the slide member 2 is fitted to the mounting groove of the screen door, the slide member 2 is pressed to the inner surface side of the mounting groove by the repulsive force of the elastically deformed slide member 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding member for a sliding door which is mounted on a sliding door such as a screen door in place of a door roller.

[0002]

For example, a door roller is attached to a conventional sliding door type screen door. This door wheel moves while rotating on the rails of the sill, whereby the doors can be opened and closed smoothly.

[0003] A conventional door screen door is constructed by attaching a plastic wheel to a metal shaft pin. Since the screen door is disposed at the entrance of the house or the outermost side of the window as a repellent for insects, there is a situation that sand and dust easily adhere to the screen.

Since the wheel is made of plastic, the outer periphery of the wheel is unevenly worn by sand or dust between the rail and the shaft hole of the wheel is unevenly worn by sand or dust entering the shaft hole of the wheel. I do.
Then, the axle does not rotate smoothly and the screen door cannot be opened and closed smoothly, so the door wheel needs to be replaced. In particular, since the entrance screen door is frequently opened and closed, uneven wear as described above occurs quickly, and the door wheel must be frequently replaced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to replace a conventional door roller with the possibility that smooth opening and closing of the sliding door may be hindered even if abrasion due to sand or dust occurs. Another object of the present invention is to provide a sliding member for a sliding door that can withstand long-term use.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a portion which comes into contact with a rail is formed of a sliding material which slides on the rail with opening and closing of the sliding door. Can be performed smoothly, and can be used for a long time until the sliding material is almost worn out.

[0007]

FIG. 1 shows a first embodiment of the present invention.
A description will be given based on FIG. FIG. 3 shows an entrance screen 1 as a sliding door, and a sliding member 2 according to the present invention is detachably attached to a plurality of locations below the screen 1.

As shown in FIG. 1, the sliding member 2 is provided with a sliding material 4 on an inner surface of a main portion 3 which is open downward and has a substantially U-shaped cross section.
Will be attached. Main part 3 is PP (polypropylene), P
The sliding material 4 is formed of a plastic material such as ET (polyethylene terephthalate) or a metal material such as steel or aluminum, and the sliding material 4 is formed of a plastic material having a low coefficient of friction, for example, tetrafluoride resin. When the main part 3 is made of a metal material, a manufacturing method of integrally molding the sliding material 4 on the inner surface of the main part 3 by insert molding is advantageous in terms of cost. In this insert molding, as shown in FIG. 2, a plurality of tapered holes 5 are provided in the main part 3, a plurality of nozzle holes opened in the tapered holes 5 are provided in the molding die, and a plurality of It is preferable to configure so that the injection is performed from Step 5.

As shown in FIG. 1, both sides of the sliding member 2 are open in a substantially C-shape, and are wider than the mounting groove 6 at the lower portion of the screen door 1. When the sliding member 2 is fitted into the mounting groove 6 of the screen door 1, the sliding member 2 is elastically deformed so as to be narrowed, and is pressed against the inner surface of the mounting groove 6 by its resilient force to be mounted in a retaining state. . For more secure attachment, it is preferable to provide a claw that cuts into the inner surface of the mounting groove 6 of the screen door 1 on the outer surface of the main part 3.

The sliding member 2 attached to the screen door 1 is shown in FIG.
The sliding material 4 is placed on the rail 7 of the sill as shown in FIG.
Is in contact with the rail 7. When the screen door 1 is opened and closed, the sliding material 4 inside the sliding member 2 moves while sliding on the rail 7 with the opening and closing. Since the sliding material 4 in sliding contact with the rail 7 has a low coefficient of friction, the screen door 1 moves smoothly.

When sand or dust enters between the sliding material 4 and the rail 7, the sliding material 4 wears. However, there is no possibility that the smoothness of sliding between the sliding material 4 and the rail 7 is adversely affected, and the smoothness of opening and closing the screen door 1 can be maintained for a long time until the sliding member 4 is completely worn. Therefore, the sliding member 2 has a long life and the replacement cycle with a new one becomes long.

FIG. 4 shows a second embodiment of the present invention.
The difference from the first embodiment is that the upper part of the sliding member 2 is formed in an arc shape so that the contact area between the sliding material 4 and the rail 7 is increased. In this way, the progress of wear of the sliding material 4 is slowed, and the sliding member 2 has a longer life.

FIG. 5 shows a third embodiment of the present invention.
The difference from the first embodiment is that the upper portion of the sliding member 2 is formed in a substantially triangular shape so that the sliding material 4 contacts two portions having different inclination directions. In this way, movement in the width direction of the rail 7 (inside and outside of the house) is suppressed, and rattling of the screen door 1 can be suppressed.

FIG. 6 shows a fourth embodiment of the present invention.
The difference from the first embodiment lies in the structure for attaching to the screen door 1.
That is, both sides of the sliding member 2 are not opened in a C-shape, and instead, a substantially U-shaped fitting portion 9 having a groove 8 that opens downward at the lower end of both sides of the main portion 3 is provided. Is formed. To attach the sliding member 2 to the screen door 1, the main portion 3 is fitted into the mounting groove 6, and the mounting groove 6 of the screen door 1 is inserted into the groove 8 of the fitting portion 9 on both sides at the lower end of the sliding member 2. Fit both sides. At this time, by setting the dimensions so that the groove 8 and the both side surfaces of the mounting groove 6 fit tightly, the sliding member 2 can be reliably prevented from coming off.

The present invention is not limited to the embodiment described above and shown in the drawings, but can be modified or expanded as follows. The main part 3 of the sliding member 2 also has a section equivalent to four.
It may be made of a fluorinated resin (the whole is made of a sliding material 4 with a sliding member). The attachment of the sliding member 2 to the screen door 1 may be a screw. The present invention is not limited to the sliding member of the screen door 1 but can be widely applied to sliding doors.

[Brief description of the drawings]

FIG. 1 is a front view of a sliding member according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a sliding member in a cross section in the middle.

FIG. 3 is a sectional view of a lower portion of a screen door.

FIG. 4 is a partial sectional view of a sliding member according to a second embodiment of the present invention.

FIG. 5 is a view corresponding to FIG. 4, showing a third embodiment of the present invention.

FIG. 6 is a view corresponding to FIG. 3, showing a fourth embodiment of the present invention.

[Explanation of symbols]

In the figure, 1 is a screen door, 2 is a sliding member, 3 is a main part, 4 is a sliding material, 6 is a mounting groove, and 7 is a rail.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takayuki Shibayama 2nd Sanage-cho, Kita-ku, Nagoya F-term (reference) in Daido Metal Industry Co., Ltd. 2E034 BA13

Claims (1)

[Claims] 1. A sliding member provided at a lower portion of a sliding door and moving on a rail as the sliding door is opened and closed, wherein a portion contacting the rail is moved on the rail as the sliding door is opened and closed. A sliding member for a sliding door, wherein the sliding member is formed of a sliding material.