JP3174901B2 - Hanging door roller for sliding doors and its mounting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION As shown in FIG. 8, the present invention hangs on a top rail of an entrance opening of a greenhouse such as a pipe house (plastic house), attaches it to an upper member of a sliding door, and slides the door. The present invention relates to a double-wheel type hanging door roller used as a moving (opening / closing) door roller and a method of mounting the same.

[0002]

2. Description of the Related Art Conventionally, as a door wheel of a sliding door p attached to an entrance s of a pipe house B shown in FIG. 8, for example, a single wheel type hanging door wheel shown in the upper part of FIG. 9 is widely known. ing. In the door roller shown in the figure, an axle b of one single wheel a is passed through an angle member d attached to an upper side of the sliding door p, and a nut c is tightened to be fixed to an upper portion of the door p. This single wheel a
Is mounted on an upper rail e having a U-shaped cross section, and rotates (runs) on the rail e so that the door p can be opened and closed.

[0003]

[Problems to be Solved by the Invention] The pipe house is not sturdy in the first place. Due to natural phenomena such as strong wind and snow, the house's wife face falls back and forth, and the size of the pipe and its accessories such as the upper rail is large. Tends to be distorted or twisted. Therefore, when the pipe g and the upper rail e shown in FIG. 9 are inclined or twisted, the door wheel shown in FIG. 9 becomes unstable or impossible to travel. In other words, the door wheel shown in FIG. 9 travels in the upper rail e with the single wheel a, but the single wheel a may fall off the inner opening of the inclined upper rail e. Also,
Or abuts the lower edge e ₁ of the inclined upper side rails e, or become upset rotation of single wheels a in contact with the side wall surface e _2, after all, is the detrimental to closing movement of the door p.

[0004] In addition to the single wheel, a conventional double-wheel type hanging door (not shown) has a problem in that it is very troublesome to attach to a sliding door. Referring to FIG. 4, an axle support bracket 5 having double wheels 4, 4 inserted into the hollow inside of the upper rail 1
Is inserted into a round hole formed in the upper side member 20 of the door. Thereafter, the nut 7 is attached to the bolt portion 5b of the axle support bracket 5, but since the door 2 is over 10 kg and is heavy and large, one worker concentrates on supporting the door 2 with both hands. The operator only tightens the nut 7. However, what is more troublesome is that if the nut 7 is screwed and tightened from below and turned, a co-rotation phenomenon occurs in which the axle support bracket 5 moves together. Therefore, it is necessary to fix the axle support bracket 5 while fixing. Normally, the tightening work of the nut 7 must be performed while firmly pressing the main body of the axle support bracket 5 with a wrench or pliers, which does not endure the inconvenience.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to stabilize and smooth the sliding movement of a sliding door used for an entrance opening of a pipe house or the like, and to easily attach a hanging door wheel to a sliding door, thereby improving workability. Another object of the present invention is to provide a suspended door roller with improved safety and a method of mounting the same.

[0006]

As means for solving the above-mentioned problems of the prior art, a hanging door wheel for a sliding door according to the present invention comprises a horizontal axle member 3 and both ends of the axle member 3. And a vertical axle support bracket 5 for supporting the axle member 3, which is suspended in the upper rail 1 of an entrance opening of a greenhouse. Upper side member 2 of sliding door 2
0, which is configured to be able to run on the upper side rail 1 so as to be able to travel inside the upper side rail 1, wherein the axle member 3 is formed with a round hole-shaped through hole 30 or 30 ′ at a central position in the vertical direction,
0 or 30 ′ is formed in a vertically tapered hole shape in which the diameter of the middle part in the depth direction is the smallest and the diameter is increased in both the up and down directions, or in a single tapered hole shape in which the diameter is increased downward in the depth direction. The upper part of the metal fitting 5 has a through hole 30 of the axle member 3.
A round bar 5a that can be inserted through
c, and the lower half of the axle support member 5 is formed into a bolt portion 5b having a length that penetrates the through hole 21 of the upper member 20 of the door and allows the nut 7 to be easily fastened.
At the upper end of b, a neck portion 5e is formed which can be engaged with the through hole 21 of the upper side member 20 and a narrow hole portion 21a formed in a keyhole shape in series.

[0007] The method for mounting a hanging door roller for a sliding door according to claim 2 is as follows: (a) A through-hole 30 is formed vertically at a central position of a horizontal axle member 3 on which double wheels 4 and 4 are rotatably mounted. The round bar-shaped axle support member 5 has an upper half portion that passes downward through the through hole 30 of the axle member 3 and is stopped by a retaining edge 5c at the upper end. The lower half portion of the axle support member 5 is a slide type. A bolt portion 5b having a length that allows the nut 7 to be fastened from below through a through hole 21 formed in the upper side member 20 of the door 2 and a neck portion 5 at the upper end of the bolt portion 5b
(b) In the upper side member 20 of the sliding door 2, the through hole 21 through which the bolt portion 5b of the axle support fitting 5 passes is formed, and a series of small-diameter long hole portions 21a are formed in a keyhole shape. (C) through-hole 30 of the axle member 3
The axle support bracket 5 is passed through the upper side of the axle member 3 and the retaining edges 5c are locked on the upper surface of the axle member 3.
Is mounted on the lips 1b, 1b of the upper rail 1 attached to the upper side of the entrance opening of the greenhouse, and the bolt portion 5b of the axle support bracket 5 is hung down from the opening 1a of the upper rail 1, (d) slide type The door 2 is lifted, and the bolt portion 5b of the axle support bracket 5 hanging from the upper rail 1 is inserted into the through hole 21 of the upper member 20. The bolt portion 5b has its neck 5e connected to the through hole 21 by a series of long holes. The door 2 is moved to the hole portion 21a to be engaged with the upper side member 20 so that the axle support bracket 5 cannot be rotated, and the door 2 is suspended from the axle support bracket 5; (e) bolts of the axle support bracket 5 in the above-described state. Screwing the nut 7 from below into the part 5b and attaching the axle support bracket 5 to the upper member 20 of the door;
Are characterized.

[0008] According to a third aspect, according to claim 1
In the sliding door for suspended door rollers, axle support bracket 5
Neck portion 5e of the entire periphery of the resected circular, or only one side of the resected D-shaped, or characterized in that it is formed in parallel resected <br/> elliptical on both sides .

[0009]

The axle member 3 with the double wheels 4, 4 and the axle support bracket 5 (FIG. 3) are inserted into the upper rail 1, and the double wheels 4, 4 are mounted on the lips 1b, 1b. 5
Bolt portion 5b hangs down from the opening 1a of the upper rail 1 (FIG. 4A). The bolt portion 5b is formed with a neck portion 5e and the like (FIG. 2A), and the through-hole 21 of the upper member 20 of the door and a series of small-diameter long hole portions 21a are formed in a keyhole shape (FIG. 2A). 6) After the door 2 is lifted and the bolt portion 5b is passed through the through hole 21 (FIG. 6A), the neck portion 5e (particularly the neck portion 5e 'or 5) is joined together with the bolt portion 5b.
e)) is moved to the long hole portion 21a of the through hole 21 and locked on the upper side member 20, the axle support metal member 5 cannot rotate, and does not rotate together (FIG. 6B), and the door 2 becomes the axle support metal member. 5
(See FIG. 4B). Therefore, the nut 7 is screwed and fastened to the bolt portion 5b of the axle support 5 from below (FIGS. 5A and 4B), and the work of attaching the hanging door wheel to the door 2 can be performed quickly.

The double wheels 4, 4 equally rotate and run (run) on the left and right lips 1b, 1b of the upper rail 1.
The axle member 3 and the axle support bracket 5 are separate members, and the axle member 3 is formed with a through hole 30 having a vertically tapered hole shape or a through hole 30 ′ having a single tapered hole shape (FIGS. 2B and 2D). The axle support bracket 5 can swing back and forth and right and left along the through-hole 30 having a tapered shape in the vertical direction. Therefore, even when the door 2 swings due to daily opening and closing of the door 2, or due to strong wind, snowfall, or the like, or the upper rail 1 is inclined, the axle support bracket 5 can be freely moved back and forth and left and right as shown by arrows in FIG. (See axle support bracket 5 'in the figure)
The double wheels 4, 4 always run in a stable state in which the lips 1b, 1b are properly grounded, and the sliding door 2 is always smoothly opened and closed.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 1 shows an upper rail 1 attached to an upper side of an entrance opening of a greenhouse such as a pipe house in which a frame is assembled with pipes as shown in FIG.
2 shows a relationship between a suspended door wheel suspended in the hollow inside of the upper side rail 1 attached to the upper side rail 1. The upper side rail 1 is formed into a grooved steel shape with lips 1b, 1b having openings 1a facing downward from the basic shape of the cross section by roll forming of a steel plate.

FIG. 2 and FIG. 3 show a specific configuration of the hanging door roller. The hanging door roller includes a horizontal axle member 3, double wheels 4, 4 having wheels 4 mounted on axles at both ends of the axle member 3, and a vertical axle support bracket 5 for supporting the axle member 3. It is composed of Axle member 3
As shown in FIG. 2C as viewed in plan, the axle 3 has a round through hole 30 at the center position and protrudes in the axle direction on both sides thereof.
b and 3b are integrally formed by zinc die casting. The through hole 30 has a maximum diameter of about 12 mm, and its inner wall surface is formed as a vertically tapered hole in which the diameter of the middle part in the depth direction is minimum and the diameter increases in the vertical direction as shown in FIG. 2B. Have been. Alternatively, as shown in FIG. 2D,
It may be formed in a through hole 30 ′ having a single tapered hole shape whose diameter increases downward in the depth direction. The axle part 3b has a length of about 1
0 mm and a diameter of about 7 mm, the end of which is formed in a tapered tapered flange 32 whose shaft diameter is slightly reduced in the distal direction (FIG. 2C).

The wheel 4 is made of synthetic resin and has a diameter of 30 mm.
Most of the shaft hole 40 is formed to a thickness of about 10 mm, and most of the shaft hole 40 from the inner end thereof passes over the flange 32 of the axle portion 3b and is rotatably locked to the axle portion 3b.
7.3) (FIG. 2B). Therefore,
The wheel 4 is pushed in such that the small diameter portion 41 of the shaft hole 40 gets over the flange 32 of the axle member 3 (axle portion 3b) from the outside, and is rotatably attached to the axle member 3. However, the method of attaching the wheel 4 to the axle portion 3b is not limited to this, and the wheel 4 may be stopped by a nut, a C-ring, an E-ring, or the like (not shown). Thus, the wheel 4 is attached to the axle member 3 as a pair of double wheels 4, 4 (FIG. 3).

As shown in FIG. 2A, the axle support 5
The overall shape is formed as a round bar having a length of about 60 mm, and the upper half portion 5a is formed to have a size of about φ = 11 so that it can be inserted into the through hole 30 of the axle member 3. The upper end is formed at the retaining edge 5c of about φ = 13, and the lower edge of the retaining edge 5c is chamfered in an R shape. The lower half portion of the axle support bracket 5 is formed as a bolt portion 5b from the lower end to about 25 mm so as to penetrate the upper member 20 of the door and facilitate the fastening of the nut 7 (see FIG. 5A). At an upper end position of the bolt portion 5b (a step portion with the upper half portion 5a), a neck portion 5e that prevents rotation of the axle support bracket 5 and that can be temporarily fixed is formed. As shown in FIG. 5B, the cross-sectional shape of the neck 5e is a circular shape (5e on the left side in the figure) cut off from the entire circumference, a D-shaped shape cut off on only one side (5e 'in the center in the figure), or It is formed and implemented in an oval shape (5e ″ on the right side in the figure) or the like in which both sides are cut in parallel.

Therefore, the above-mentioned work of attaching the hanging door car to the upper rail 1 and the sliding door 2 is performed in the following manner. First, as shown in FIG. 6A, a through hole 21 (about φ = 10) through which the bolt portion 5b of the axle support bracket 5 of the hanging door is passed through the upper side member 20 of the sliding door 2 in advance, and φ = A slot 21a having a small diameter of about 7 is formed in a keyhole shape.

The axle support member 5 is passed through the through hole 30 of the axle member 3 of the hanging door roller from above, and the retaining edge 5c is locked on the upper surface of the axle member 3 (FIG. 3). Insert into the hollow interior. In other words, the double wheels 4, 4 are rolled and inserted on the upper surfaces of the lips 1b, 1b of the upper rail 1, and the bolt portion 5b of the axle support metal fitting 5 is lowered downward from the opening 1a of the upper rail 1 (FIG. 4A).

After the two hanging door wheels located at the front and rear are stopped at intervals at the upper side member 20 of the door (see FIG. 1), the door 2 is lifted and the upper side is inserted into the through hole 21 of the upper side member 20. Pass the bolt portion 5b of the axle support bracket 5 hanging from the rail 1 (FIG. 6A). When the upper member 20 of the door comes into contact with the lower end (end) of the round bar 5a of the axle support member 5, the neck 5e is moved together with the bolt portion 5b to the through hole 21 and a series of long hole portions 21a. Member 20
(FIG. 6B), the axle support fitting 5 is made unrotatable, and the door 2 is temporarily suspended from the axle support fitting 5. Thereafter, it is no longer necessary to support the door 2, and the nut 7 is screwed into the bolt portion 5 b of the axle support bracket 5 from above through the washer 6 from below, so that the upper side of the axle support bracket 5 (suspended door wheel). The mounting work on the member 20 (door 2) is completed (FIG. 4B).

Thus, the double wheels 4, 4 are mounted on the axle member 3.
And the lips 1b, 1b of the upper side rail 1
Rotate (run) smoothly on the top. Even if the door 2 is inclined or the upper rail 1 is inclined due to strong wind, snowfall, or the like, the axle member 3 and the axle support bracket 5 are separate members.
The through-hole 30 or 30 'of the axle supporting member 5 (upper half portion 5a) is formed in a tapered shape so that the through-hole 30 or 30' of FIG.
As shown as the axle support bracket 5 ′ (upper half 5a ′), the front and rear and left and right movements correspond. Therefore, the double wheels 4 and 4 do not have a possibility of derailing or a rotation disorder, and always run on the lips 1b and 1b in a stable state with the ground contacting the lip 1b, and the stable opening and closing movement of the door 2 is maintained. .

[0019]

According to the hanging door wheel of the sliding door according to the present invention, the axle support bracket is locked (temporarily fixed) to the upper side member of the door in a detented state, so that the final fastening of the nut is performed. Work can be performed easily, contributing to improved workability and safety. After the hanging door wheel is attached to the door, the axle support bracket swings flexibly in the event of strong winds or snowfall as well as in the daily opening and closing of the door, so the double wheels always rotate smoothly in the upper rail and slide. Contributes to permanent and smooth movement of the door.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an upper structure of a sliding door to which a hanging door wheel is attached.

2A is a front view of an axle support bracket, B is a partial cross-sectional view showing how to attach a double wheel to an axle member, C is a plan view of an axle member, and D is a partial cross-sectional view of a different axle member. It is.

FIG. 3 is a front view showing the hanging door roller.

FIG. 4A is a cross-sectional view showing a procedure for inserting the door car into the upper rail, and FIG. 4B is a cross-sectional view showing a procedure for attaching the door car to the door.

FIG. 5A is a simplified diagram showing a relationship between an axle support bracket and an upper side member of a door, and FIG. 5B is a cross-sectional view showing an aspect of a neck portion of the axle support bracket.

FIGS. 6A and 6B are plan views showing upper members of the door.

FIG. 7 is a cross-sectional view showing a running state of the door roller.

FIG. 8 is an overall view of a conventional example.

FIG. 9 is a side view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper rail 1a Opening 1b Lip 2 Door 20 Upper member of door 21 Keyhole-shaped through hole 21a Long hole part 3 Axle member 30, 30 'Through hole 32 Flange 3b Axle part 4 Wheel 40 Shaft hole 41 Small diameter part 5 Axle support bracket 5a Round bar (upper half) 5b Bolt (lower half) 5c Retaining edge 5e Neck 7 Nut

Claims (3)

(57) [Claims] 1. A greenhouse comprising: a horizontal axle member; double wheels having wheels respectively rotatably mounted on axle portions at both ends of the axle member; and a vertical axle support bracket for supporting the axle member. A hanging door wheel suspended in the upper rail of the entrance opening, and attached to the upper member of the sliding door so as to be able to run in the upper rail, wherein the axle member has a round hole at the center position. A through-hole is formed in the vertical direction, the through-hole has a tapered upper and lower shape in which the diameter of the middle part in the depth direction is the smallest and the diameter is increased in both the upper and lower directions.
Alternatively, the diameter of the axle support bracket is formed in the shape of a single taper hole whose diameter increases downward. The upper half of the axle support bracket is a round bar body that can be inserted into a through hole of the axle member, and a retaining lip is provided at the upper end thereof. The lower half portion of the axle support bracket is formed into a bolt portion having a length that penetrates the through hole of the upper side member of the sliding door and is easy to fasten a nut, and an upper end portion of the bolt portion. A sliding door for a sliding door, wherein a neck portion engageable with a through hole of the upper side member and a small-diameter long hole portion formed in a keyhole shape is formed. (A) A through-hole is formed vertically at the center of a horizontal axle member to which a double wheel is rotatably mounted, and a round bar-shaped axle support bracket has an upper half portion formed in the through-hole of the axle member. Through downwards and is stopped by the retaining edge at the upper end,
The lower half portion of the axle support bracket is a bolt portion long enough to be able to fasten a nut from below through a through hole formed in the upper side member of the sliding door, and a neck portion is formed at an upper end portion of the bolt portion. (B) the upper side member of the sliding door is formed in a keyhole shape with the through hole through which the bolt portion of the axle support bracket is passed and a series of narrow holes having a small diameter; Pass the axle support bracket through the through hole from above and place the double axle on the lip of the upper rail attached to the upper side of the entrance of the greenhouse with the retaining edge locked on the upper surface of the axle member, (D) lifting the sliding door, inserting the bolt portion of the axle support bracket hanging down from the upper rail into a through hole of the upper member, and further suspending the bolt portion of the axle support bracket from the opening of the upper rail. Bolt part (E) moving the neck portion to the through hole and the series of long hole portions to be locked to the upper side member so that the axle support bracket cannot be rotated and the sliding door is hung on the axle support bracket; A method of mounting a hanging door wheel for a sliding door, characterized in that a nut is screwed from below into a bolt portion of the supporting bracket and the axle supporting bracket is mounted on an upper side member of the sliding door. Wherein the neck portion of the drive shaft mounting bracket, all around the resected circular, or that the D-shaped or both sides only excised one side is formed parallel resected oblong The hanging door roller for a sliding door according to claim 1 , characterized in that: