JPH08266165A - Hung door wheel for sliding door and method for fitting it - Google Patents

Abstract

PURPOSE: To provide a double wheel type door roller which is fitted to the upper part of a sliding door hung on the upper rail of the green house. CONSTITUTION: The wheel, shaft 3 is bored at its center to form a round and tapered through-hole in the vertical direction. The metallic wheel shaft supporter 5 is made in a round rod at its upper half so that the rod may pass through the through-hole bored on the wheel shaft 3. The lower half is formed to a bolt part 5b which passes through the hole at the upper part of the door and has a length enough to be connected to the nut 7, while a head 5e which can be connected to the key hole-like long hole part of a narrow diameter is formed on the top head of the bolt part 5b. The metallic wheel shaft supporter is set on the upper part of the door unrotatably, the final operation of the nut binding can be easily done to improve the operability and safety.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is, as shown in FIG. 8, suspended from an upper side rail of a doorway opening of a greenhouse such as a pipe house (vinyl house) and attached to an upper side member of a slide type door, and the door is slid. The present invention relates to a double-wheel type hanging door roller used as a door roller that is moved (opened / closed) and a method of mounting the hanging door roller.

[0002]

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

[0003]

[Problems to be Solved by the Invention] Pipe houses are not tough in the first place, and due to natural phenomena such as strong winds and snowfall, the house's gable surface collapses back and forth, and pipes and their upper rails attached to them are large and small. Is likely to be distorted or twisted. Therefore, when the pipe g and the upper rail e illustrated in FIG. 9 are tilted or twisted, the door roller in the same figure becomes unstable or impossible to run. That is, the door roller of FIG. 9 travels in the upper rail e with the single wheel a, but the single wheel a may be dismounted from the inner opening of the inclined upper rail e. Also,
The single wheel a comes into contact with the lower edge portion e ₁ of the inclined upper rail e or with the side wall surface e ₂ thereof, and the rotation of the single wheel a is disturbed, which eventually hinders the opening and closing movement of the door p.

In addition to the single wheel, the conventional double-wheel type hanging door vehicle (not shown) also has a problem in that it is very troublesome to mount on a sliding door. Explaining with reference to FIG. 4, the axle support fitting 5 having the double wheels 4 and 4 inserted into the hollow inside of the upper rail 1
The lower part is inserted into a round hole-shaped through hole provided in the upper side member 20 of the door. After that, the nut 7 is attached to the bolt portion 5b of the axle support fitting 5, but since the door 2 is as heavy as 10 kg and is large, one worker is devoted to supporting the door 2 with both hands, and the other. The worker only tightens the nut 7. However, what is more troublesome is that when the nut 7 is screwed in from the bottom and turned to rotate it, a co-rotation phenomenon occurs in which the axle support fitting 5 moves together. Therefore, the axle support fitting 5 must be fixed. Normally, the fastening work of the nut 7 must be carried out while firmly holding the main body portion of the axle support fitting 5 with a spanner or pliers, which is not troublesome.

Therefore, an object of the present invention is 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 attach the hanging door car to the sliding door easily and to improve workability. The purpose of the present invention is to provide a hanging door car with improved safety and a mounting method thereof.

[0006]

As a means for solving the above-mentioned problems of the prior art, a suspension door roller for a sliding door according to the invention of claim 1 is a horizontal axle member 3 and both ends of the axle member 3. Wheel 4 is rotatably attached to each of the wheels 4 and 4, and a vertical axle support metal fitting 5 that supports the axle member 3, and is suspended in the upper rail 1 of the doorway opening of the greenhouse, and Upper side member 2 of sliding door 2
0 is a hanging door roller mounted on the upper side rail 1 so that it can travel in the upper rail 1, and a round hole-shaped through hole 30 or 30 'is vertically formed in the axle member 3 at a central position.
0 or 30 'is formed in a vertically tapered hole shape in which the diameter of the intermediate portion in the depth direction is minimum and the diameter increases in both up and down directions, or in a one-taper hole shape in which the diameter increases in the depth direction downward, The upper half of the metal fitting 5 is the through hole 30 of the axle member 3.
A round bar 5a that can be inserted into the
c, the lower half portion of the axle support fitting 5 penetrates the through hole 21 of the upper side member 20 of the door and is formed into a bolt portion 5b having a length that allows the nut 7 to be easily fastened.
A neck portion 5e is formed at the upper end portion of b so that it can be engaged with the through hole 21 of the upper side member 20 and a long hole portion 21a having a small diameter and formed in a keyhole.

According to a second aspect of the present invention, there is provided a method for mounting a suspension door roller for a sliding door, wherein: (a) a through hole 30 is vertically formed at a central position of a horizontal axle member 3 on which double wheels 4 and 4 are rotatably mounted. The upper half of the round rod-shaped axle support fitting 5 is passed downward through the through hole 30 of the axle member 3 and is fixed by the retaining edge 5c at the upper end, and the lower half of the axle support fitting 5 is slidable. 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 has a neck 5 at the upper end portion 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 is inserted and the elongated hole portion 21a having a small diameter in series are formed into a keyhole shape. Forming, (c) the through hole 30 of the axle member 3.
With the axle support metal fitting 5 passed through from above and the retaining edge 5c is locked to the upper surface of the axle member 3, the double wheels 4, 4
Is placed 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 from the opening 1a of the upper rail 1, (d) slide type Raise the door 2 and insert the bolt portion 5b of the axle support fitting 5 that hangs down from the upper rail 1 into the through hole 21 of the upper side member 20, and further, the neck portion 5e of the bolt portion 5b is connected to the through hole 21 in a series. The axle support fitting 5 is made non-rotatable by moving it to the hole portion 21a and locking it to the upper side member 20, and the door 2 is suspended on the axle support fitting 5, (e) The bolt of the axle support fitting 5 in the above state. A nut 7 is screwed into the portion 5b from below to attach the axle support fitting 5 to the upper side member 20 of the door,
Each is characterized by.

According to a third aspect of the present invention, there is provided a suspension door roller for a sliding door and a method of mounting the same, wherein the neck portion 5e of the axle support fitting 5 according to the first or second aspect is a circular shape obtained by cutting the entire circumference, or a D-shape obtained by cutting only one side. It is characterized in that it is formed in a rectangular shape or an oval shape with both sides cut in parallel.

[0009]

The axle member 3 with the double wheels 4 and 4 and the axle support fitting 5 (FIG. 3) are inserted into the upper rail 1, and the double wheels 4 and 4 are placed on the lips 1b and 1b. 5
The bolt portion 5b is hung from the opening 1a of the upper rail 1 (FIG. 4A). A neck portion 5e and the like are formed on the bolt portion 5b (FIG. 2A), and the through hole 21 of the upper side member 20 of the door and a series of small-diameter long hole portions 21a are formed in a keyhole shape (see FIG. 6) After lifting the door 2 and passing the bolt portion 5b through the through hole 21 (FIG. 6A), the neck portion 5e (particularly the neck portion 5e ′ or 5) together with the bolt portion 5b.
e ″) is moved to the long hole portion 21a of the through hole 21 and locked to the upper side member 20, the axle support fitting 5 becomes unrotatable and does not rotate together (FIG. 6B), and the door 2 does not rotate. 5
It is hung on the ground (see FIG. 4B). Therefore, the nut 7 can be screwed and fastened to the bolt portion 5b of the axle support fitting 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 and 4 are equally placed on the left and right lips 1b and 1b of the upper rail 1 and rotate (run).
The axle member 3 and the axle support fitting 5 are separate members, and the axle member 3 is formed with the through hole 30 having a vertically tapered hole shape or the through hole 30 ′ having a one-side tapered hole shape (FIGS. 2B and D). The axle support fitting 5 can swing back and forth and left and right along the through hole 30 having the upper and lower tapered holes. Therefore, even when the door 2 is opened or closed on a daily basis, or when the door 2 sways due to strong wind, snowfall, or the like, the upper rail 1 is tilted, the axle support bracket 5 can be freely moved in the front, rear, left, and right directions, as indicated by the arrow in FIG. To respond flexibly (see axle support bracket 5'in the figure),
The double wheels 4 and 4 always run in a stable state in which they are exactly grounded on the lips 1b and 1b, and the sliding door 2 is always smoothly opened and closed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention shown in the drawings will be described below. FIG. 1 shows an upper side rail 1 attached to an upper side of a doorway opening of a greenhouse such as a pipe house in which a frame is assembled with a pipe as shown in FIG. 8 and an upper side member 20 of a slide type door 2.
3 shows the relationship of the hanging door roller mounted on the upper rail 1 and suspended inside the hollow inside the upper rail 1. The upper rail 1 is formed by roll forming of a steel plate into a groove-shaped steel shape with a lip 1b and 1b having an opening 1a with a basic cross-sectional shape facing downward.

2 and 3 show a specific structure of the hanging door car. This hanging door car includes a horizontal axle member 3, double wheels 4 and 4 each having wheels 4 attached to axle portions at both ends of the axle member 3, and a vertical axle support fitting 5 for supporting the axle member 3. It consists of and. Axle member 3
As shown in FIG. 2C when seen in a plan view, the axle part 3 has a round through hole 30 at a central 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 the inner wall surface thereof is formed in a vertically tapered hole shape in which the diameter of the intermediate portion in the depth direction is the minimum and the diameter of the through hole 30 is increased in the vertical direction, as shown in FIG. 2B. Has been done. Alternatively, as shown in FIG. 2D,
You may form in the through-hole 30 'of a single taper hole shape whose diameter expands downward in the depth direction. The axle part 3b has a length of about 1
It has a diameter of 0 mm and a diameter of about 7 mm, and its end portion is formed into a tapered tapered flange 32 whose axial 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.
The thickness of the shaft hole 40 is about 10 mm, and most of the shaft hole 40 from the inner end 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 rotatably attached to the axle member 3 by being 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. However, the method of attaching the wheel 4 to the axle 3b is not limited to this, and it may be stopped by a nut stopper, a C ring, an E ring, or the like (not shown). Thus, the wheels 4 are attached to the axle member 3 as a set of two double wheels 4 and 4 (FIG. 3).

The axle support fitting 5 is, as shown in FIG. 2A,
The overall shape is formed as a round rod body having a length of about 60 mm, and the upper half portion 5a is formed with 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 of the retaining edge 5c is formed with a diameter of about φ = 13, and the lower edge of the retaining edge 5c is chamfered into an R shape. The lower half portion of the axle support fitting 5 is formed in the bolt portion 5b from the lower end to about 25 mm so that the nut 7 can be easily fastened by penetrating the upper side member 20 of the door (see FIG. 5A). At the upper end position of the bolt portion 5b (step portion with the upper half portion 5a), a neck portion 5e that prevents rotation of the axle support fitting 5 and can be temporarily fixed is formed. The cross-sectional shape of the neck portion 5e is, as shown in FIG. 5B, a circular shape in which the entire circumference is cut off (5e on the left side in the figure), or a D shape in which only one side is cut off (5e ′ in the center in the figure), or It is carried out by forming it into an oval shape (5e ″ on the right side of the figure) in which both sides are cut in parallel.

Therefore, the above-described 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, the upper side member 20 of the slide type door 2 and the through hole 21 (φ = about 10) through which the bolt portion 5b of the axle support metal fitting 5 of the hanging door wheel is inserted in advance, and φ = An elongated hole portion 21a having a small diameter of about 7 is formed in a keyhole shape.

The axle support fitting 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 to the upper surface of the axle member 3 (FIG. 3). Insert inside the hollow. That is, the double wheels 4 and 4 are placed on the upper surfaces of the lips 1b and 1b of the upper rail 1 so as to be rolled, and the bolt portion 5b of the axle support fitting 5 is hung downward from the opening 1a of the upper rail 1 (see FIG. 4A).

After the two hanging door rollers located at the front and rear are made to stand still with an installation interval in the door upper side member 20 (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 fitting 5 hanging from the rail 1 (FIG. 6A). When the upper side member 20 of the door comes into contact with the lower end (end portion) of the round bar body 5a of the axle support metal fitting 5, the neck portion 5e is moved together with the bolt portion 5b to the through hole 21 and a series of long hole portions 21a to move the upper side. Member 20
(FIG. 6B), the axle support fitting 5 is made non-rotatable, and the door 2 is temporarily hung on the axle support fitting 5. After that, it is not necessary to support the door 2 particularly, and the nut 7 is screwed into the bolt portion 5b of the axle support fitting 5 in the above state from below through the washer 6 so that the upper side of the axle support fitting 5 (suspending door wheel) is The attachment work to the member 20 (door 2) is completed (FIG. 4B).

Thus, the double wheels 4 and 4 are attached to the axle member 3.
While being held by, the lips 1b, 1b of the upper rail 1
Rotate (run) smoothly over. Even if the door 2 tilts or the upper rail 1 tilts due to strong wind, snowfall, etc., the axle member 3 and the axle support fitting 5 are separate members.
Since the through hole 30 or 30 'of FIG. 7 can be freely formed in the shape of a tapered hole, the axle support fitting 5 (upper half portion 5a) of FIG.
As indicated by the axle support metal fitting 5 '(upper half portion 5a'), the front and rear and right and left are moved to correspond. Therefore, the double wheels 4 and 4 do not have a risk of derailing or malfunction of rotation, always run on the lips 1b and 1b in a stable state by being in exact contact with each other, and the stable opening / closing movement of the door 2 is maintained. .

[0019]

According to the sliding door suspension door wheel of the present invention, the axle support metal fitting is locked (temporarily fixed) to the upper side member of the door in a non-rotating state, so that the final nut is fastened. Work can be done easily, contributing to improved workability and safety. After the suspension door is attached to the door, the double-wheel always rotates smoothly in the upper rail and slides because the axle support bracket flexes flexibly not only when the door is opened and closed daily but also when there is strong wind or snow. Contributes to permanent stabilization and smooth movement of doors.

[Brief description of drawings]

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

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

FIG. 3 is a front view showing a hanging door car.

FIG. 4A is a sectional view showing how to insert the door roller into the upper rail, and B is a sectional view showing how to attach the door roller to the door.

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

6A and 6B are plan views showing an upper side member of a 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.

[Description of symbols] 1 upper rail 1a opening 1b lip 2 door 20 door upper member 21 keyhole-shaped through hole 21a elongated hole portion 3 axle member 30, 30 'through hole 32 flange 3b axle portion 4 wheel 40 axle hole 41 small diameter part 5 axle support metal fitting 5a round bar (upper half part) 5b bolt part (lower half part) 5c retaining edge 5e neck 7 nut

Claims (3)

[Claims] 1. A greenhouse comprising a horizontal axle member, a double wheel in which wheels are rotatably attached to axle portions at both ends of the axle member, and a vertical axle support fitting for supporting the axle member. Is a hanging door roller suspended in the upper side rail of the entrance opening of the door and attached to the upper side member of the slide type door so as to be able to travel in the upper side rail. The through-hole is formed in the vertical direction, and the through-hole has an upper and lower tapered hole shape in which the diameter of the intermediate portion in the depth direction is the smallest and the diameter is expanded in both the up and down directions.
Alternatively, it is formed in a one-side taper hole shape in which the diameter expands downward in the depth direction, and the upper half portion of the axle support fitting is a round bar body that can be inserted into the through hole of the axle member, and a retaining edge is provided at the upper end thereof. And a lower half portion of the axle support metal fitting is formed in a bolt portion having a length that penetrates a through hole of the upper side member of the slide type door and allows a nut to be easily fastened, and an upper end portion of the bolt portion. A slidable door suspension door car, characterized in that a neck portion that can be engaged with a small-diameter long hole portion formed in a keyhole shape is formed in series with the through hole of the upper side member. (A) A through hole is vertically formed at a central position of a horizontal axle member on which a double wheel is rotatably mounted, and an upper half portion of a round rod-shaped axle support fitting is a through hole of the axle member. It passes through downwards and is stopped by the retaining edge of the upper end,
The lower half portion of the axle support metal fitting is a bolt portion having a length through which a nut can be fastened 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) In the upper side member of the sliding door, a long hole portion having a small diameter is formed in a keyhole shape in series with the through hole through which the bolt portion of the axle support fitting is passed, (c)
In a state where the axle support fitting is passed through the through hole of the axle member from above and the retaining edge is locked to the upper surface of the axle member,
Place the double wheel on the lip of the upper rail attached to the upper side of the entrance of the greenhouse, and hang the bolt part of the axle support bracket from the opening of the upper rail. (D) Lift the sliding door to raise it. The bolt portion of the axle support fitting that hangs down from the upper rail is inserted into the through hole of the member, and the bolt portion is further moved to the through hole and a series of long hole portions of the neck portion and locked to the upper member, so that the axle support fitting is attached. And the slide type door is hung on the axle support fitting, and (e) a nut is screwed into the bolt portion of the axle support fitting in the above state from below to attach the axle support fitting to the upper side member of the slide type door. A method of installing a hanging door car for a sliding door, characterized by: 3. The neck portion of the axle support fitting according to claim 1 or 2 has a circular shape in which the entire circumference is cut, a D shape in which only one side is cut, or an oval shape in which both sides are cut in parallel. And a mounting method for a sliding door for a sliding door.