JP2509839B2 - Door support device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing door supporting device for supporting a part of the weight of the opening / closing door supported by a hinge and reducing the load applied to the hinge.

[0002]

2. Description of the Related Art Generally, there are two doors at the doorway.
To 3 or more hinges are attached to the frame so that it can be opened and closed, and when the door is opened, the entire weight of the door is supported by this hinge. Something is used.

[0003]

By the way, in recent years, as the design, size, and material of doors have been widely used,
For example, a wooden frame fitted with a thick glass plate,
The thing with the big weight is appearing. Durable hinges are used for the doors with such a large weight, and the number of hinges used is increasing. However, due to long-term use, a large load was applied to this hinge, which could tilt the door and damage the hinge.

The present invention reduces the load applied to the hinge of the door to prevent the door from tilting or being damaged, and the door can be smoothly opened and closed even after long-term use. It is an object of the present invention to provide a supporting device of

[0005]

In order to achieve the above object, a support device for a door according to the present invention comprises a support device main body disposed inside a lower end of the door, a support roller, and a shaft of the support roller. It is characterized in that it comprises an up-and-down adjuster which is supported and is arranged to be able to move up and down in the main body of the supporting device, and an adjusting means for adjusting up-and-down of the up-and-down adjuster which can be operated through a small hole formed in the door.

[0006]

The opening / closing door supporting device of the present invention is configured such that the adjusting means operable through a small hole formed in the opening / closing door vertically adjusts the lifting / lowering adjuster to raise or lower the supporting roller axially supported by the lifting / lowering adjuster. When the door is closed, a part or almost all of the weight of the door can be supported by a sill or a lower frame to reduce the load on the hinge. Further, even if the construction becomes difficult due to long-term use, it can be easily adjusted by adjusting the protrusion amount of the support roller.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A support device for a door according to the present invention will be described below with reference to the illustrated embodiments. In the figure, D is a required opening / closing door, Da is a lower frame of the opening / closing door D, and the supporting device of the present invention is arranged in the lower frame Da. It is also possible to bury it.

The supporting device is a supporting device main body 1 which is embedded in the opening / closing door D, an elevating adjuster 2 which is vertically inserted into the supporting device main body, a supporting roller 4 which is supported at its lower end, and an elevating adjuster. Worm wheel 5 for raising and lowering 2, worm 6
It is composed of the adjusting means.

The support device main body 1 is a block body made of a synthetic resin or other material.
1 is bored and the lifting adjustment body 2 is fitted thereinto, and the worm wheel 5, the worm 6 meshing with the worm wheel, and the ball 7 for pressing the outer peripheral surface of the worm wheel are fitted in the support device body 1. Is inserted.

A screw hole 21 is formed in the upper part of the elevation adjusting body 2 fitted in the vertical hole 11, and a roller fitting groove 22 is formed in the lower part thereof. The screw hole 21 projects to the lower part of the worm wheel 5. The screw rod 51 provided is screwed into the roller fitting groove 22.
The supporting roller 4 is inserted into the inside so that a part of the supporting roller 4 protrudes slightly from the lower end of the lifting adjuster 2, and is supported rotatably by the shaft 3.

A worm wheel 5 is fitted into the upper part of a vertical hole 11 whose upper part is closed by a lid 10 so as to be located above the lifting adjuster 2, and a worm 6 is screwed into the worm wheel 5. A lower hole D is formed in a turning hole 61 formed in one end surface of the worm 6, for example, a hexagon wrench fitting hole.
A hexagon wrench is inserted through the adjustment hole Dh formed in a so that the worm 6 can be rotated, and the ball 7 inserted into the hole 12 is pressed against the outer peripheral surface of the worm wheel 5.

The ball 7 is fitted into the hole 12, and the spring 8 is also fitted into the hole 12, and when the hole is closed by the lid 9, the spring pressure acts on the ball 7 and the outer circumference of the worm wheel 5. It presses against the surface and creates resistance in the worm wheel, preventing it from unintentionally turning.

The support device constructed as described above is embedded in the lower frame Da of the opening / closing door D, fixed with screws or the like, and opened / closed in the opening frame via the hinge T so that the opening / closing door D can be opened and closed.
Attach. When the door is closed, the supporting roller 4 contacts the lower frame or the sill C to support the load of the door D. This is a hexagon wrench hole 6 on the worm 6.
The worm wheel 5 rotates by inserting a hexagon wrench into 1 and rotating the worm 6 to the left or right, and the screw rod 5 that rotates integrally with the worm wheel 5 is rotated.
1 adjusts the lifting / lowering adjuster body 2 inserted into the support device body 1 so as to be able to move up and down (withdrawal) in a rotation stop state by 1 so that the support roller 4 contacts the sill C with a predetermined pressing force. Is.

[0014]

According to the opening / closing door supporting apparatus of the present invention, the lifting / lowering adjuster is adjusted up and down by the adjusting means operable through the small hole formed in the opening / closing door to support the lifting / lowering adjuster. By adjusting the amount of protrusion of the roller, when the door is closed, a part or almost all of the weight of the door can be supported by a sill or a lower frame to reduce the load on the hinge. In this case, since the lifting adjustment of the lifting adjustment body is performed through the small hole formed in the opening / closing door, the lifting adjustment of the lifting adjustment body can be performed with the opening / closing door closed. It is possible to easily adjust the protrusion amount of the supporting roller that is axially supported to an optimum value. In addition, the main body of the support device is disposed inside the lower end of the door,
Since the up-and-down adjustment of the up-and-down adjuster is performed through the small hole formed in the opening and closing door, the appearance of the opening and closing door is not damaged. Furthermore, even if the building is clogged due to long-term use, it can be easily adjusted by adjusting the protrusion amount of the support roller, and the opening and closing operation of the door can be smoothly performed for a long period of time. And, there is an advantage that can be surely done.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a support device for a door according to the present invention.

FIG. 2 is a side view showing a state in which the opening / closing door supporting device of the present invention is attached to a lower frame of the opening / closing door.

FIG. 3 is a cross-sectional view of a support device for a door according to the present invention.

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a bottom view of FIG.

FIG. 6 is a front view showing a state in which the support device for an opening / closing door of the present invention is attached to the opening / closing door.

[Explanation of symbols]

 D Opening / closing door C Sill 1 Support device body 2 Elevating / adjusting body 4 Support roller 5 Worm wheel 6 Worm 7 Ball

Claims (1)

(57) [Claims] 1. A support device main body disposed inside a lower end of an opening / closing door, a support roller, an elevating adjuster rotatably supported in the support device main body, and an opening / closing door. 2. An opening / closing door support device, comprising: an adjusting means for adjusting the elevation of the elevation adjuster operable through a small hole formed in the opening.