KR20150067957A

KR20150067957A - Driving apparatus for opening and closing of overhaed door

Info

Publication number: KR20150067957A
Application number: KR1020130153598A
Authority: KR
Inventors: 황영수
Original assignee: 블루코스텍 주식회사
Priority date: 2013-12-11
Filing date: 2013-12-11
Publication date: 2015-06-19
Also published as: KR101532914B1

Abstract

The present invention relates to an overhead door opening / closing drive apparatus, and more particularly, to an overhead door opening / closing apparatus for an overhead door which is connected to an overhead door (20) And an opening / closing drive device for the head door.
In order to achieve this, an opening / closing drive device for an overhead door according to the present invention,
Two frames 10 spaced apart from each other;
An overhead door (20) vertically openable and closable between the two frames (10);
A drive shaft (32) disposed on the frame (10) and rotated by a drive motor;
A sprocket 40 coupled to both ends of the drive shaft 30;
A chain 50 engaging with the sprocket 40 and having one end connected to one side of the lower end of the overhead door 20 and the other end extending downward through the sprocket 40; And
A weight 60 coupled to the other end of the chain 50,
.
A guide (70) fixed to the frame (10), the guide (70) being disposed along a path where the weight is raised and lowered when the overhead door is opened and closed; And
A slide (80) connecting the guide (70) and the weight (60) and being installed to be able to move up and down by the guide (70);
.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an overhead door opening /

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overhead door opening / closing drive device, and more particularly to an overhead door opening / closing drive device connected to an overhead door to open / close the overhead door, .

Among various techniques related to the opening / closing drive device of the overhead door,

Korean Registered Patent No. 10-1299647 (registered on Aug. 19, 2013, hereinafter referred to as "prior art") "drive device for overhead shutter" is proposed.

In the prior art,

A hinge includes a shutter composed of a plurality of shutter plates connected by a hinge, a roller is coupled to the hinge, and a guide rail is disposed on which the roller is disposed.

A drive shaft rotated by a drive motor is disposed above the guide rails, and sprockets are axially coupled to both sides of the drive shaft.

In addition, the chain is wound on the sprocket, one end of the chain is fixedly coupled to the lower end of the shutter, and the other end is arranged to extend downward through the sprocket.

In the state of operation of the prior art constructed as described above,

When the drive shaft is rotated by the drive motor, the sprocket axially coupled to the drive shaft rotates and the chain wound on the sprocket is driven.

Then, the one end of the chain is lifted and the shutter fixedly coupled to the one end is raised.

Further, as the roller connected to the shutter by the hinge moves along the guide rail, the shutter is lifted along the outer periphery of the guide rail, and the shutter is opened.

At this time, as one end of the chain rises toward the sprocket, the other end of the chain descends.

When the shutter is closed, as the drive shaft rotates in the direction opposite to the open state, the other end of the chain rises and the one end of the chain is lowered, so that the shutter fixedly coupled to the one end is lowered.

However, when the shutter is opened and closed, the other end of the chain tangles or rocks as the chain ascends and descends.

Therefore, the lifetime of the chain is shortened, and the opening and closing operation of the shutter may not be performed smoothly or may be interrupted.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an overhead door opening / closing drive device which prevents the chain from tangling or fluctuating when the overhead door is opened or closed.

According to an aspect of the present invention, there is provided an apparatus for opening and closing an overhead door,

Two frames spaced apart from each other;

An overhead door provided between the two frames so as to be vertically openable and closable;

A drive shaft disposed on the frame and rotated by a drive motor;

A sprocket coupled to both ends of the drive shaft;

A chain engaged with the sprocket and having one end connected to one side of the lower end of the overhead door and the other end extending downward through the sprocket; And

The weight attached to the other end of the chain

.

A guide fixed to the frame, the guide being disposed along a path where the weight is raised and lowered when the overhead door is opened and closed; And

A slide connected to the guide and the weight, the slide being installed to be able to move up and down with the guide;

.

An overhead door opening / closing drive device according to the present invention comprises:

So that the lifting operation of the chain can be carried out smoothly when the overhead door is opened or closed, so that the life of the chain can be extended and the stopping of the opening and closing operation can be prevented.

1 is a perspective view of an opening / closing drive device for an overhead door according to the present invention;
2 is a side view of the overhead door open / close driving device according to the present invention in a state where the overhead door is closed;
3 is a side view of the overhead door open / close driving device according to the present invention in an open state.
Figure 4 is another embodiment of a guide and slide according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

In the opening / closing drive device of the overhead door according to the present invention,

The frame 10

As shown in Figs. 1 and 2,

The first frame 11 and the second frame 12 are disposed at the front and rear sides, respectively. The first frame 11 and the second frame 12 are spaced apart from each other by a predetermined distance.

Accordingly, an internal space S is formed between the first frame 11 and the second frame 12. [

A guide rail 13 is formed on the rear side of the second frame 12. The guide rail 13 includes a lower rail 131 formed in a vertical direction along the second frame 12, And an upper rail 132 connected to the upper portion of the upper rail 131 in a horizontal direction. The lower rail 131 and the upper rail 132 are connected to each other by a curved portion.

The overhead door (20)

As shown in Figs. 1 and 2,

The overhead door panel 21 is vertically connected by a hinge 22 and the hinge 22 is formed with a roller 24

The roller (24) is movably disposed on the guide rail (13).

The drive shaft 30

As shown in Figs. 1 and 2,

The driving shaft 30 is rotated by a driving motor 31 disposed on one side of the frame 10.

The sprocket (40)

As shown in Figs. 1 and 2,

Are coupled to both ends of the driving shaft (30).

A sub-sprocket 41 is disposed below the sprocket 40 and is disposed between the central axis of the sprocket 40 and the overhead door 20 when viewed from a plane.

The chain (50)

As shown in Figs. 1 and 2,

One end of which is fixedly coupled to one side of the lower end of the overhead door 20 and the other end of which is fixed to the sprocket 40 via the sub-sprocket 41, And is disposed so as to be lowered downward.

Therefore, the chain 50 is disposed in the internal space S.

At this time, as shown in FIG. 2, when the overhead door 20 is lowered and closed, the chain is formed to have a length enough to wrap the sprocket 40 at the other end thereof.

The weight 60

As shown in Figure 2,

And is fixedly coupled to the other end of the chain (50).

The guide (70)

As shown in Figure 2,

And is disposed on a rear surface of the first frame 11 along a path in which the weight 60 moves up and down when the overhead door 20 is opened and closed.

The slide (80)

As shown in Figure 2,

Is formed on one side of the weight (60).

The slide 80 connects the guide 70 and the weight 60, and is installed to be able to move up and down by the guide 70.

Therefore, due to the guide (70) and the slide (80), the weight (60) is not shaken when lifting.

Therefore, the chain 50 connected to the weight 60 is not tangled or swung.

Meanwhile, in the present invention, the guide 70 and the slide 80 may be formed into two embodiments.

In the first embodiment, as shown in FIGS. 2 and 3, the guide 70 may be formed of a wire, and the slide 80 may be a ring.

That is, the upper end and the lower end of the wire are fixed to the bracket 71, respectively, and the bracket 71 is screwed to the upper end and the lower end of the rear surface of the first frame 11, respectively.

The loop is formed in the weight 60 and is fitted to the wire.

According to this, the loop can be raised and lowered along the wire.

Therefore, the chain 50 moves up and down along the wire when lifting.

In the second embodiment, as shown in FIG. 4, the guide 70 may be a sliding rail, and the slide 80 may be a guide roller.

That is, the sliding rails are fixedly coupled to the rear surface of the first frame 11, and the weight weights 60 are disposed along a path for moving up and down.

The guide rollers are formed on the weights 60 and are disposed inside the sliding rails.

According to this structure, the guide roller can be moved up and down along the inner path of the sliding rail.

Therefore, the chain 50 is moved up and down along the sliding rail when it ascends and descends.

Meanwhile, the guide 70 and the slide 80 may be formed in various shapes within a range that allows the weight 60 to move up and down smoothly without shaking.

Hereinafter, the operation of the present invention will be described.

3, when the overhead door 20 is opened, the drive shaft 30 rotates counterclockwise in the drawing by the drive motor, and the sprocket (not shown) 40 are rotated.

When the sprocket 40 rotates, the weights 60 formed at the other end and the other end of the chain 50 start to descend, and one end of the chain 50 starts to rise.

When one end of the chain 50 rises, the overhead door 20 fixedly coupled to the one end rises.

At this time, the roller 24 coupled to the hinge 22 to the overhead door 20 rotates and rises along the lower rail 131 to help a smooth rise of the overhead door 20.

When the overhead door 20 rises, the chain 50 ascends at a predetermined distance from the overhead door 20 due to the sub-sprocket 41.

Accordingly, the chain 50 and the overhead door 20 are raised without any interference with each other.

When the drive motor 31 stops operating, the drive shaft 30 connected to the drive motor 31 is stopped and the sprocket 40 and the chain 50 stop operating.

Through the above operation, the overhead door 20 is opened and the overhead door 20 is closed through the reverse operation.

2 to 4, in the present invention, the chain 50 is always maintained in the unfolded state due to the weight of the weight 60.

Therefore, when the overhead door 20 is opened or closed, the chain 50 does not tangle or swing in the internal space S.

The chain 50 is further raised and lowered more smoothly by the guide 70 formed on the first frame 11 and the slide 80 formed on the weight 60.

Accordingly, the lifetime of the chain 50 can be extended and the overhead door 20 can be raised and lowered smoothly to prevent the stopping of the opening and closing operation and the breakage of the overhead door 20.

While the present invention has been described with reference to the accompanying drawings, it should be understood that various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention. Modifications are to be construed as falling within the scope of the present invention.

10: frame
11: first frame 12: second frame
13: Guide rail
131: lower rail 132: upper rail
20: Overhead door
21: overhead door panel 22: hinge
24: Roller
30: drive shaft
31: Driving motor
40: sprocket
41: Subsprocket
50: Chain
60: weight weight
70: Guide
71: Bracket
80: Slide

Claims

Two frames 10 spaced apart from each other;
An overhead door (20) vertically openable and closable between the two frames (10);
A drive shaft (30) disposed on the frame (10) and rotated by a drive motor;
A sprocket 40 coupled to both ends of the drive shaft 30;
A chain 50 engaging with the sprocket 40 and having one end connected to one side of the lower end of the overhead door 20 and the other end extending downward through the sprocket 40; And
A weight 60 coupled to the other end of the chain 50;
And an opening / closing mechanism for opening and closing the overhead door.

The method according to claim 1,
A guide (70) fixed to the frame (10) and arranged along a path that causes the weight to move up and down during opening and closing of the overhead door (20); And
A slide (80) connecting the guide (70) and the weight (60) and being installed to be able to move up and down by the guide (70);
And an opening / closing device for the overhead door.

3. The method of claim 2,
The guide 70 is made of wires arranged along the longitudinal direction of the frame 10,
Wherein the slide (80) is formed in the weight (60) and is fitted in the guide (70).