KR19980057388U - Automatic door opening and closing device using chain gear and chain - Google Patents

Abstract

1. The technical field to which the invention described in the claims belongs.

The present invention relates to a door automatic opening and closing device using a chain gear and chain.

2. The technical problem the invention is trying to solve.

In the present invention, it is applied to a door of a swing type to automatically open and close the door by using a chain gear and a chain to the motor that rotates forward and backward.

3. Summary of the solution of the design.

Forward and reverse motor 15 is fixed to the chain gear 16 is installed inside the door 12; The chain gear 16 is rotatably fixed to one end of the chain 17 having a length equal to the opening angle of the door 12; The other end of the chain 17 is a side plate 21 of the door hinge 10 fixed to the door frame 10 via the chain holes 22 and 23 formed in the side plates 20 and 21 of the door hinge 11. Fixed with a bracket 24 and a fixing pin 25 formed on the rear surface; The door 12 is opened and closed while the chain is wound and unwound on the chain gear 16 by the rotation of the stationary motor 15.

4. Significant Uses of the Invention.

The present invention is designed to automatically open and close the type of door using a chain gear and a chain to provide the ease of opening and closing the door, and to contribute to the automation system by applying to the machine tool, industrial, and automotive fields.

Description

Automatic door opening and closing device using chain gear and chain

The present invention relates to a door automatic opening and closing device using a chain gear and a chain, and more particularly, to automatically open and close a machine tool, industrial, automobile, and other building doors using a chain gear and a chain.

In the case of opening or closing a conventional machine tool, industrial, automobile, and other building doors, a manual opening and closing method is used by using a handle provided on a door.

The door is a main door and the sliding door form the mainstream, in the case of the door type is fixed by a door frame and a hinge that is fixed to a fixture such as a wall to open the door while rotating in and out around the hinge. have.

In the case of the sliding type, rails are installed on the upper and lower sides of the door frame, and rollers are fixed to the upper and lower ends of the door to push and pull the doors so that the rollers on the door slide on the rails of the door frame.

In this conventional technique, the first visitor is manually opened and closed, so the opening is poor because the direction of opening of the door is not known accurately, especially for the elderly and children. There are difficulties in opening and closing of large doors and preventing the smooth operation.

In addition, in winter, when opening a general building door or a car door, the damage caused by static electricity is serious, and the avoidance of catching the door handle is prominent, and the handle is held only after several touches of the door handle using a key. There were several problems, such as the need to open.

In this invention, in order to solve the above-mentioned problems, the door is opened by automatically opening and closing the door by using a chain gear and a chain that rotates forward and backward by a motor by applying to a case of door type. It is characterized by providing ease of use.

1 is a partially broken perspective view of a door closed state showing an embodiment of the present invention.

2 is a plan view of the closed state of the present invention.

3 is a plan view of the open state of the present invention.

4 is a plan view showing another embodiment of the motor mounting of the present invention.

5 is a plan view showing two embodiments of a chain that is a main part of the present invention.

Figure 6 is a plan view showing three embodiments of the chain that is the main part of the present invention.

* Description of the symbols for the main parts of the drawings *

10; Door frame

11; Door hinge

12; door

15; Forward and reverse motor

16; Chain gear

17; chain

20,21; shroud

22,23; Chain ball

24; Brackets

25; Bending prevention means

30,30 '; link

Hereinafter, the configuration, operation and effects of the present invention will be described with reference to the accompanying drawings.

1 is a partially broken perspective view of a door closed state showing an embodiment of the present invention, FIG. 2 is a closed state plan view of the present invention, and FIG. 3 is described as an open state plan view of the present invention.

The door 12 is fixed to the door frame 10 and the door hinge 11 and pivots about the shaft 11 'of the door hinge 11 so that the door 12 is opened and closed to the inside and outside of the door frame 10. In the opening, closing the door 12 is configured to automatically open and close; The forward and reverse motors 15 are fixed to the inside of the door 12 to fix the chain gear 16 to the shaft 15 ′ of the motor 15, and to the chain gear 16 of the door 12. One side end of the chain 17 having a length equal to the opening angle (about 90 °) was freely fixed by the fixing pin 18.

When the opening angle of the door 12 is to be increased, the size of the chain gear 16 and the chain 17 may be increased.

The other end of the chain 17 is connected to the door frame 10 via the chain holes 22 and 23 formed in the side plates 20 and 21 of the door hinge 11 fixed to the door 12 and the door frame 10. ) And the bracket 24 formed on the rear surface of the side plate 21 of the fixed door hinge 11 and the fixing pin 25, and the chain is wound on the chain gear 16 by the rotation of the stationary motor 15. The door 12 is opened and closed while being released.

Each link 30, 30 ′ of the chain 12 has a bending preventing means 25 so that the chain 17 does not bend when the chain 17 is unfolded. Both sides 31 and 31 'of the link (outer portion 30, 30' in the drawing) maintain a straight line with respect to the center of the axis 11 'of the door hinge 11 and the opening of the links 30 and 30'. The directional outer faces 32, 32 'are configured to have circular arcs having the same diameter with respect to the axis 11'.

Looking at the working relationship of the present invention configured as described above, it is possible to select the opening and closing of the door 12 on the door frame 10 to control the forward and reverse motor 15 installed inside the door 12. Install and use a switch (not shown).

That is, when the door 12 is to be opened, the door 12 may be opened or closed by rotating the stationary motor 15 by manipulating a switch installed in the door frame 10.

At this time, the forward and reverse rotation of the forward and reverse motor 15 is changed according to the opening direction of the door 12 in the present invention will be described as the opening in the forward rotation, the closing in the reverse rotation.

When the door 12 is to be opened in the closed state and the chain 17 is wound on the chain gear 16, the forward and reverse motor 15 is rotated forward.

Then, when the chain 17 wound on the chain gear 16 is released, the phenomenon that the chain 17 pushes the door frame 10 occurs, so that the door 12 is the shaft 11 'of the door hinge 11. Will be opened around the center.

This is because the chain gear 15 rotates and pushes the chain 17 when the chain 17 is unfolded, so that the force transmitted to each link 30, 30 ′ of the chain 17 is transferred to the link 30, 30 ′. By being located on the outer surfaces 32 and 32 ', when the chain 17 is unfolded, the straight portions of both sides 31 and 31' of the links 30 and 30 'are in contact with each other, thus eliminating the fear of bending. It can be.

In order to pull the open door 12, the switch is operated to rotate the forward and reverse motors 15 in the reverse direction so that the loosened chain 17 is wound on the chain gear 16. 15) is naturally closed, it is also possible to open and close the door 12 by removing the switch and using a remote control.

In addition, in the case where the opening (unfolding) direction of the chain 17 is to be reversed, when the bending preventing means is operated inside the link constituting the chain 17, the chain is unfolded in the opposite direction to the above description. Or the door is opened and closed.

Of course, when the size of the door 12 is large or made of metal, the weight is heavy, the chain gear 16 is fixed to the shaft (15 ') of the forward and reverse motor 15 is installed inside the door 12 ) And the chain 17 is formed in a double to obtain a greater force to facilitate opening and closing of the door 12.

4 is a plan view showing another embodiment of the motor mounting of the present invention, the side plate of the door hinge 11 is fixed to the door 12 without mounting the forward and reverse motor 15 in the interior of the door 12 It is to be mounted on the bracket (50) protruding fixed to (20) to be used.

When mounting the forward and reverse motor 15 using the bracket 50 as described above, it is possible to freely position the forward and reverse motors, as well as to drive the chain gear 16 in a more stable state. It is.

FIG. 5 is a plan view showing a second embodiment of a chain which is a main part of the present invention, and FIG. 6 is a plan view showing a third embodiment of a chain which is a main part of the present invention, and a chain 17 having other bending preventing means 25 formed therein. It is shown.

In the case of FIG. 5, the inner surfaces 35 and 35 ′ and the outer surfaces 36 and 36 ′ of the respective links 30 and 30 ′ of the chain 17 are arcuated to exclude bending of the unfolded chain 17. Both sides 37 and 37 ', which are joint portions, are formed in a straight line, and each link 30 and 30 is wound on the chain gear 16 by giving rounds 38 and 38' to both inner ends of the straight portion. To prevent the interference between the ') is shown an example in which the bending preventing means 25 is devised.

In FIG. 6, the connecting portions 40 and 40 ′ of the links 30 and 30 ′ are formed in a circular shape, and the protrusions 42 are provided on the side of the outer portions 41 and 41 ′ which are forced when the chain 17 is unfolded. , 42 '), and the rear side of the inner jaw (43, 43') is formed so that each link (30, 30 ') is in the form of a mesh to be folded when the chain 17 is also unfolded It is to configure the bending preventing means 25 to prevent.

The present invention configured as described above provides easy opening and closing of the door by opening and closing the general door of the chain type using a chain gear and the chain, and contributes to the automation system by applying it to the machine tool, industrial, and automobile fields. It can have such advantages.

Claims (7)

The door 12 is fixed to the door frame 10 and the door hinge 11 and pivots about the shaft 11 'of the door hinge 11 so that the door 12 is opened and closed to the inside and outside of the door frame 10. In the opening, closing the door 12 is configured to automatically open and close; Forward and reverse motor 15 is fixed to the chain gear 16 is installed inside the door 12; The chain gear 16 is rotatably fixed to one end of the chain 17 having a length equal to the opening angle of the door 12; The other end of the chain 17 is a side plate 21 of the door hinge 10 fixed to the door frame 10 via the chain holes 22 and 23 formed in the side plates 20 and 21 of the door hinge 11. Fixed with a bracket 24 and a fixing pin 25 formed on the rear surface; The door automatic opening and closing device using a chain gear and a chain, characterized in that configured to open and close the door 12 while the chain is wound and released on the chain gear 16 by the rotation of the stationary motor (15). The method of claim 1; Door chain opening and closing device using a chain gear and the chain, characterized in that the chain gear 16 and the chain 17 to be applied to a large or heavy door (12) to double. The method of claim 1; The chain 17 connected between the chain gear 16 and the side plate 21 of the door hinge 11 further includes bending preventing means 25 to prevent bending of the chain 17 when it is unfolded. Automatic door opening and closing device using a chain gear and chain, characterized in that. The method of claim 1; The forward and reverse motors 15 are automatically mounted on the brackets 50 fixed to the side plate 20 of the door hinge 11 coupled to the door 12 side. Opening and closing device. The method of claim 3; The bending preventing means (25) is such that both sides (31, 31 ') of the links (30, 30') of the chain (17) maintain a straight line with respect to the center of the axis (11 ') of the door hinge (11); Outer surface 32, 32 'of the link (30, 30') has a circular arc having the same diameter for the shaft (11 ') characterized in that the chain gear and the door automatic opening and closing device using the chain . The method of claim 3; The bending preventing means (25) forms an inner surface (35, 35 ') and an outer surface (36, 36') of the links (30, 30 ') constituting the chain (17) in an arc; Both side surfaces (37, 37 ') of the link (30, 30') is a connection portion is formed in a straight line, characterized in that the round (38, 38 ') formed on both inner ends of the advanced line to prevent interference during winding Automatic door opening and closing device using chain gear and chain. The method of claim 3; The bending preventing means (25) forms a link (30, 30 ') of the chain (17) at the connecting portion (40, 40') in a circular shape; Protrusions 42 and 42 'are formed at the side of the outer portions 41 and 41' of the links 30 and 30 ', and settled jaws 43 and 43' are formed at the rear side so that the respective links 30 and 30 'are formed. Door automatic opening and closing device using a chain gear and the chain, characterized in that the form to be engaged.