JPH0711275Y2 - Large door support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a support structure for a large door provided in an opening of a hangar or the like.

[Conventional technology]

The large doors installed in the openings of hangars are supported above and below by upper guide rails and lower guide rails, respectively. The beam of the building where the upper guide rail is installed will fluctuate up and down due to strong wind blowing up the roof of the building and snowfall that presses down the roof of the building,
There was a danger that the large door would fall off the guide rail and collapse.

For this reason, conventionally, a slider that can travel in the opening and closing direction of the large door is provided between a pair of left and right upper guide rails that are horizontally provided along the upper portion of the opening, and the upper end of the large door is moved by the slider. A support structure for supporting a vertically mounted guide stick is proposed (see Japanese Patent Publication No. 50-35750).

That is, a guide stick that is erected on the upper end of the large door is attached to the upper part of the large door so that it can slide in the vertical direction, so that the vertical fluctuation of the upper guide rail provided along the upper part of the opening can be prevented. Attempts to tolerate have been made.

[Problems to be solved by the device]

However, in order to smoothly slide the guide stick in the vertical direction in accordance with the vertical movement of the upper guide rail, a high precision processing technique is required, which causes a problem that the processing cost is significantly increased.

Even if high precision machining is performed, when a large door receives a cross wind, the wind pressure causes a frictional force that interferes with the smooth sliding of the guide stick in the vertical direction, causing the large door to move up and down. The upper guide rail may be pulled so as to be lifted, the wheels of the large door may be dismounted from the lower guide rail, and the upper guide rail may be damaged by the load of the large door.

That is, there is a problem in that the vertical movement of the upper guide rail cannot be permitted only when the upper guide rail may move vertically.

Therefore, the present invention reliably allows vertical movement of the upper guide rail in strong winds without the need for advanced precision machining technology to ensure a large door derailment accident, a collapse accident, and an upper guide rail damage accident. It is a technical issue to be able to prevent it.

[Means for Solving the Problems]

In order to solve this problem, the present invention provides a slider that can travel in the opening and closing direction of a large door between a pair of left and right upper guide rails that are horizontally provided along the upper part of the opening, and the slider allows the slider to move. A support structure for a large door that supports a guide stick erected on the upper end of the large door, wherein the upper end of the large door includes a pair of front and rear columnar frames that are adjacent to each other in the opening / closing direction of the large door with the slider interposed therebetween. A guide stick is erected, a columnar frame forming the guide stick is projected in parallel to the upper side of the guide rail through the guide rails, and both front and rear sides of the slider follow the columnar frames. And a guide roller that moves vertically is provided.

[Action]

According to the present invention, when the pair of left and right upper guide rails horizontally provided along the upper portion of the opening moves up and down, the slider provided between the guide rails is erected on the upper end of the large door. By the rotation of the guide roller that supports each columnar frame of the guide stick, the guide stick travels in the vertical direction along each columnar frame, and the vertical movement of the upper guide rail is allowed.

That is, in the present invention, unlike the conventional case, the guide stick that is erected on the upper end of the large door is not slid vertically with respect to the upper portion of the large door, but is slid on the upper guide rail. The guide roller provided on the slider allows the upper guide rail to move vertically by traveling in the vertical direction along the guide stick.

Therefore, it is not necessary to make full use of advanced precision processing technology, and vertical movement cannot be tolerated due to the frictional force generated when the large door receives wind pressure, which may result in a large door derailing accident or an upper guide rail damage accident. There is no possibility of causing.

In addition, since the guide stick standing on the upper end of the large door protrudes above the guide rail through the upper guide rails, even if the wheels of the large door should come off the lower guide rail, The guide stick erected on the upper end of the large door is caught between the upper guide rails, and the large door is prevented from accidentally collapsing.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a front view showing a large door support structure according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view thereof.

In this example, the large door 1 is provided between the pair of left and right upper guide rails 2R and 2L horizontally provided along the upper part of the opening of the hangar or the like.
The large door 1 is provided with a slider 3 that can travel in the opening and closing directions of
On the upper end of the guide rod 4, a guide stick 4 is vertically provided. The guide rod 4 is composed of a pair of front and rear columnar frames 4a and 4b that are adjacent to each other in the opening / closing direction of the large door 1 with the slider 3 interposed therebetween.

The columnar frames 4a and 4b forming the guide stick 4 are inserted between the upper guide rails 2R and 2L, and the guide rails 2R and 2L.
Is projected upward.

The slider 3 has guide rollers 5, 5 ... Rotating on the left and right sides thereof while contacting with the vertical surfaces of the guide rails 2R, 2L made of C-channel steel, and guide rollers 6, 6 ... Rotating against the upper horizontal surface. , And guide rollers 7, 7 ... Which come into contact with the lower horizontal surface and rotate.

Further, a pair of left and right guide rollers 8R and 8L, which are respectively rotatable in the vertical direction, are provided on the front and rear ends of the slider 3, respectively.
The columnar frames 4a and 4b erected on the upper end of the column are provided so as to be held from both left and right sides.

In each columnar frame 4a, 4b, the portion held by the guide rollers 8R, 8L is formed by a relatively thin vertical rib 9.

Thus, in the large door 1 according to the present invention, the columnar frames 4a and 4b of the guide stick 4 which is erected on the upper end thereof are held by the guide rollers 8R and 8L provided on the front and rear ends of the slider 3, respectively. It is movably supported along the upper guide rails 2R and 2L integrally with the slider 3.

Then, in this state, when the upper guide rails 2R, 2L fluctuate vertically, the slider 3 that vertically fluctuates integrally with the guide rails 2R, 2L is greatly moved by the guide rollers 8R, 8L provided at the front and rear ends thereof. It runs vertically along the vertical ribs 9 of the columnar frames 4a, 4b that are erected on the upper end of the door 1,
Vertical movement of the guide rails 2R, 2L is allowed.

At this time, even if the large door 1 receives the wind pressure of the cross wind,
Since the slider 3 reliably travels vertically along the vertical ribs 9 of the columnar frames 4a and 4b by the smooth rotation of the guide rollers 8R and 8L, the wheels of the large door 1 float up from the lower guide rails and come off. Wheel accidents and upper guide rails
There is no possibility that 2R, 2L will be damaged by the load of the large door 1.

Further, since the columnar frames 4a, 4b of the guide stick 4 erected on the upper end of the large door 1 project above the guide rails 2R, 2L through the upper guide rails 2R, 2L.
Even if the wheels of the large door 1 fall off from the lower guide rail, the columnar frames 4a, 4b are caught between the upper guide rails 2R, 2L, and the collapse of the large door 1 is reliably prevented.

In the above embodiment, the pair of guide rollers 8R, 8L provided at the front and rear ends of the slider 2 respectively support the columnar frames 4a, 4b, but the present invention is not limited to this, and as shown in FIG. It is also possible to support each columnar frame 4a, 4b by a single guide roller 8 to allow vertical movement of the upper guide rails 2R, 2L.

That is, FIG. 4 is a plan view showing another embodiment of the present invention, in which concave grooves 10 are formed on the surfaces facing the slider 3 along the longitudinal direction of the columnar frames 4a, 4b, respectively. At both front and rear ends of the slider 3, guide rollers 8 which are rotatable in the vertical direction along the left and right side walls in the recessed groove 10 are provided in a protruding manner.
4a and 4b are supported between the upper guide rails 2R and 2L.

[Effect of device]

As described above, according to the present invention, with a simple means that does not require high-precision machining, vertical movement due to strong wind in the upper guide rail that supports the upper end of the large door is reliably allowed, and the large door is removed. It has a very excellent effect of reliably preventing wheel accidents, collapse accidents and damage accidents of the upper guide rail.

[Brief description of drawings]

FIG. 1 is a front view showing a support structure for a large door according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view thereof, and FIG. 4 is a plan view showing another embodiment of the present invention. . Explanation of code 1 …… Large door, 2R, 2L …… Upper guide rail, 3 …… Slider, 4 …… Guide stick, 4a, 4b …… A pair of columnar frames, 8 …… Guide rollers, 8R, 8L …… A pair of guide rollers,

Claims (1)

[Scope of utility model registration request] 1. A slider (3) which is movable in the opening / closing direction of a large door (1) is provided between a pair of left and right upper guide rails (2R, 2L) horizontally provided along the upper part of an opening. ,
In the large door support structure that supports the guide stick (4) standing on the upper end of the large door (1) by the slider (3), the slider (3) is attached to the upper end of the large door (1). A guide stick (4) consisting of a pair of front and rear columnar frames (4a, 4b) that are adjacent to each other in the opening and closing direction of the large door.
And the columnar frames (4a, 4b) forming the guide stick (4) are projected in parallel to and above the guide rails (2R, 2L) through the guide rails (2R, 2L). Along with the front and rear sides of the slider (3), guide rollers (8, 8R, 8L) running vertically along the columnar frames (4a, 4b) are provided. Door support structure.