JPH1046906A - Lower rail for folding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the construction work and make a storage shelf with castor and a wheeled chair possible to pass by reducing the height of the whole rail which is provided in a lower part of a folding door and in which a groove in which a wheel runs is formed to mount it on a floor surface and forming a gentle inclination part in a corner part on its both sides. SOLUTION: A lower rail 10 for folding door 18 is made of light metal such as aluminum or iron, stainless steel, etc., and its height H is about 3mm and its width W is about 40mm. Gentle inclination parts 11, 12 having the height A of 2mm and width B of about 5mm are formed on its both sides, and the lower rail 10 for folding door 18 is fixed on a floor surface 13 directly by using a countersunk screw 16, etc. A groove 17 which has a rectangular cross section, the depth D of about 2mm, and the width which is larger than the width of a wheel 20 of a runner 19 attached in a lower part of the holding door 18 by approximately 1 to 2mm is formed at the center of the lower rail 10 for folding door. Consequently, a storage shelf with castor and a wheeled chair can override from parts of the gentle inclination parts 11, 12 and pass.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower rail for a folding door through which a wheel attached to a lower portion of a folding door used for a closet, a partition or the like passes.

[0002]

2. Description of the Related Art There are two types of lower rails of folding doors used for closets and partitions, which are buried in a floor and formed flush with the floor surface, and those which are buried in a lower frame and mounted on the floor surface. Since there is no step on the floor buried, the storage shelves with casters can be put in and out of the closet without any trouble, and the wheelchair can be passed freely.

[0003]

However, the lower rail to be buried in the floor has a problem that a concave groove must be machined in the floor, and it takes a very long time to construct the lower rail. In addition, construction buried in the lower frame is very easy,
There is a step of about 20 mm between the floor and the floor, and there is a problem that it is difficult to pass through a storage shelf with casters or a wheelchair. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lower rail for a folding door which is easy to construct and can pass through a storage shelf with casters and a wheelchair.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The lower rail for the folding door described is a rail formed with a groove for running wheels provided at the lower part of the folding door, and has a lower overall height as a floor mounting type, and further on both side corners thereof. A gentle slope is formed on which storage shelves with wheels and wheelchairs can pass. A lower rail for a folding door according to a second aspect is the lower rail for a folding door according to the first aspect, wherein the total height is less than 4 mm and the depth of the groove is formed to be 2 to 3 mm. The total height of the lower rail for the folding door is about 3 mm, and the depth of the groove is 2 mm.
More preferably, it is about mm. The lower rail for a folding door according to claim 3 is the lower rail for a folding door according to claim 1 or 2, wherein a wheel is formed in an abacus ball shape, and the groove is engaged with a tip portion of the abacus ball shape wheel. It is formed in a triangular cross section. A lower rail for a folding door according to a fourth aspect is the lower rail for a folding door according to any one of the first to third aspects, wherein the lower rail for the folding door is made of a magnetic material.

In the lower rail for the folding door according to the first to fourth aspects, the height of the entire lower rail for the folding door is reduced, and the lower rail for the folding door is provided with gentle slopes on both sides thereof. Storage shelves and wheelchairs can be used to get on easily. In particular, in the folding rail for a folding door according to claim 3, since the wheels are in the form of abacus balls and the grooves are formed in a triangular cross section, the wheels have good bite, and even when the depth of the grooves is shallow. It is difficult to get off the wheel. In the lower rail for the folding door according to the fourth aspect, since the lower rail for the folding door is made of a magnetic material, when the wheel is a magnet, it is difficult to remove the wheel because it has an attraction between the wheel and the rail. .
Further, even when the lower rail for the folding door is a magnet and the wheels are made of a magnetic material, the wheels have a mutual attraction, so that it is difficult to remove the wheels.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a sectional view of a use state of a lower rail for a folding door according to one embodiment of the present invention, FIG. 2 is a partial side view thereof, and FIG. 3 is a lower rail for a folding door according to another embodiment. It is sectional drawing of the use condition of.

As shown in FIGS. 1 and 2, the folding door lower rail 10 according to one embodiment of the present invention is made of a light metal such as aluminum, or iron or stainless steel, and has a height H of about The width W is about 40 mm. Then, gentle inclined portions 11 and 12 are formed on both sides. The height A of the gentle slopes 11 and 12 is 2 mm and the width B
Is about 5 mm.

[0010] The lower rail 10 for the folding door has screw holes 14, 1, 2 for screwing the lower rail 10 on the floor 13.
5 are provided at an appropriate pitch, and can be fixed to the floor surface with a countersunk screw 16 or the like. A groove 17 having a rectangular cross section is formed in the center of the lower rail 10 for the folding door. The depth D of the groove 17 is about 2 mm, and the width thereof is attached to the lower part of the folding door 18. The width of the wheel 20 of the runner 19 is about 1 to 2 mm wider.

Therefore, in the folding door lower rail 10, the mounting is completed by arranging the lower rail 10 at a predetermined position on the floor surface 13 and stopping with the countersunk screw 16. In addition, storage shelves and wheelchairs with casters are provided with gentle slopes 11 and 12.
You can get on and pass from the part. Wheel 20
Passes through the groove 17 in a fitted state, and therefore cannot be easily removed. Here, in the lower rail 10 for folding doors,
If the height H is set to about 4 mm and the depth D of the groove 17 is further increased, the wheels 20 are less likely to be removed.

FIG. 3 shows a lower rail 22 for a folding door according to another embodiment of the present invention. As shown in the figure, a groove 23 has a triangular cross section and is attached to a lower portion of the folding door 18. The wheels 25 of the casters 24 have an abacus ball shape corresponding to the cross-sectional shape of the groove 23. As a result, the wheel 25 travels in the groove 23, and if the wheel 25
Since the load acts so that the leading end of the wheel 25 falls into the groove 23 even when the wheel is released from the wheel, there is an advantage that the wheel is not easily removed even in the shallow groove 23. Since the other components are the same as those of the folding door lower rail 10, the same reference numerals are given and the detailed description is omitted.

In each of the above-described embodiments, the wheels 20, 25 or the lower rails 10, 2 for the folding door are used.
2 is composed of a magnet and the other is composed of a magnetic material such as iron, nickel or an alloy thereof, so that the wheels 20 and 25 and the lower rail 1 for the folding door can be used.
It is also possible to impart absorptivity to 0 and 22 to prevent derailing. In the above embodiment, the dimensions are specified and the lower rail for the folding door is described. However, the dimensions and the shape can be changed without changing the gist of the present invention.

[0012]

According to the lower rails for folding doors according to the first to fourth aspects, since the overall height is reduced and the gentle slopes are provided on both sides of the lower rails, storage shelves and wheelchairs with casters can ride on. And easy to pass. And since it is a structure attached directly to a floor, there is an advantage that workability is very good. In particular, in the folding rail for the folding door according to the third aspect, since the wheels are formed in the shape of an abacus ball and the grooves are formed in a triangular cross-section, even if the depth of the grooves is shallow, it is difficult to remove the wheels. As a result, a lower rail for a folding door having a lower height can be provided. The lower rail for the folding door according to the fourth aspect has an advantage that the wheel can be prevented from coming off even in a shallower groove by using one of the lower rail for the folding door and the wheel as a magnet.

[Brief description of the drawings]

FIG. 1 is a sectional view of a use state of a lower rail for a folding door according to an embodiment of the present invention.

FIG. 2 is a partial side view of the same.

FIG. 3 is a sectional view of a use state of a folding door lower rail according to another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Lower rail for folding doors 11 Slowly inclined part 12 Slightly inclined part 13 Floor surface 14 Screw through hole 15 Screw through hole 16 Countersunk screw 17 Groove 18 Folding door 19 Runner 20 Wheel 22 Folding door lower rail 23 Groove 24 Caster 25 Wheel

Claims (4)

[Claims] 1. A rail provided with a groove provided in a lower portion of a folding door and having wheels running therethrough, wherein the height of the whole is reduced to be a floor-mounted type, and further, a gentle slope portion is provided at both side corners thereof. A lower rail for a folding door, wherein the lower rail is formed so that a storage shelf with a caster and a wheelchair can pass therethrough. 2. The total height is within 4 mm, and the depth of said groove is 2
The lower rail for a folding door according to claim 1, wherein the lower rail is formed to have a thickness of 3 mm. 3. The folding door lower door according to claim 1, wherein the wheel is formed in an abacus ball shape, and the groove is formed in a triangular cross section with which a tip portion of the abacus ball shape wheel engages. rail. 4. The lower rail for a folding door according to claim 1, wherein the lower rail for a folding door is made of a magnetic material.