KR20100012850U - Hanger roller for automatic door - Google Patents

Abstract

A hanger roller for an automatic door that can improve stability and reliability is disclosed. The hanger roller for the automatic door for rolling movement of the automatic door while rolling along the guide rail is provided with a surface elastic part and a through part provided to partially surround the surface of the roller body in which the through part is formed and the roller body in contact with the guide rail. A fixed elastic portion is filled and connected integrally with the surface elastic portion, and includes an elastic coating portion injection molded integrally with the roller body, and the fixed elastic portion restrains the slip of the elastic coating portion on the roller body.

Hanger roller, roller body, elastic coating part, surface elastic part, fixed elastic part, slip

Description

HANGER ROLLER FOR AUTOMATIC DOOR}

The present invention relates to a hanger roller for an automatic door, and more particularly, to a hanger roller for an automatic door for guiding a slide movement of the automatic door.

In general, automatic doors have been widely installed as conveniences that can be opened and closed automatically by power when people enter and exit. Automatic doors are mainly installed and operated at the entrances of apartments, hotels, buildings, etc., where people frequently access them. Recently, the automatic doors have been spread to general buildings such as restaurants and supermarkets as well as large buildings.

Such automatic doors may be configured to be opened and closed in various opening and closing manners depending on the installation location and use. For example, the opening and closing method of the automatic door may be divided into an opening and closing method by a sensor for detecting a person or an object, an opening and closing method by a remote control operation, an opening and closing method by a button operation, or an opening and closing combination thereof.

On the other hand, the door of the general automatic door system is configured to open and close the doorway by receiving the driving force of the drive unit via the hanger assembly. That is, the conventional hanger assembly is configured to include a hanger bracket for connecting the door and the timing belt circulated by the drive motor and a hanger roller connected to the hanger bracket and rolling along the guide rail.

However, in the related art, when the hanger roller rolls along the guide rail, there is a problem of operating noise due to rolling friction, and when the foreign matter such as dust adheres to the guide rail, the hanger roller does not stably move. There is a problem.

Accordingly, in recent years, various studies have been made on hanger rollers for minimizing operating noise and maintaining stable operation.

For example, in the related art, a structure in which a thin urethane coating layer is formed on the circumferential surface of the hanger roller in contact with the guide rail to reduce the operation noise of the hanger roller has been proposed.

By the way, the conventional hanger roller is configured to roll along the guide rail while supporting the load of the door via the hanger bracket, so that a constant contact load occurs on the hanger roller, and the urethane coating layer hangs by the contact load. There is a problem in that a slip phenomenon in which only the hanger roller is rotated without rotating with the roller is generated, and the urethane coating layer is separated and separated from the hanger roller by the slip phenomenon.

The present invention provides an automatic door hanger roller that can minimize operating noise and improve operating stability.

In particular, the present invention provides a hanger roller for an automatic door that can prevent the slip phenomenon of the elastic coating portion on the roller body, and can prevent the separation and separation of the elastic coating portion on the roller body in advance.

According to a preferred embodiment of the present invention for achieving the above object of the present invention, the automatic door hanger roller for guiding the sliding movement of the automatic door while rolling along the guide rail is in contact with the roller body and the guide rail formed therethrough; A surface elastic part and a through elastic part which are provided to partially surround the surface of the roller body, the fixed elastic part being integrally connected with the surface elastic part, and having an elastic coating part injection molded integrally with the roller body, and fixed The elastic portion restrains the slip of the elastic coating portion on the roller body.

The hanger roller for an automatic door according to the present invention can be applied to a conventional automatic door system, and the present invention is not limited or limited by the structure and characteristics of the automatic door system.

The roller body may be formed of a conventional plastic or metal material, and the elastic coating part may be formed of a general urethane or rubber material. In some cases, the roller body and the elastic coating portion may be formed of other materials, and the present invention is not limited or limited by the material of the roller body and the elastic coating portion.

A roller groove may be formed in the roller body so that the guide rail may be partially accommodated. In addition, the through body is formed in the roller body, and the formation position and size of the through part may be variously changed according to required conditions and design specifications. For example, the through part may be formed to penetrate the side wall of the roller groove. In some cases, the through part may be formed to penetrate the central portion of the roller body along the radial direction of the roller body.

The shape and structure of the surface elastic portion can be variously changed according to the required conditions and design specifications. For example, the surface elastic portion may include an inner surface elastic portion formed on the inner surface of the side wall and an outer surface elastic portion formed on the outer surface of the side wall, and the fixed elastic portion may be configured to integrally connect the inner surface elastic portion and the outer surface elastic portion. Can be. The surface elastic part may be provided to partially surround the surface of the roller body, but in some cases, the surface elastic part may be provided to completely cover the surface of the roller body.

In addition, a projection receiving groove may be formed on the surface of the roller body corresponding to the surface elastic portion, and the elastic coating part may have a projection portion corresponding to the projection accommodation groove. Such a protrusion may be accommodated in the protrusion receiving groove so that the mutual contact area between the roller body and the elastic coating portion may be increased, and the slippage of the elastic coating portion with respect to the roller body may be more effectively restrained.

A hanger roller for an automatic door according to another preferred embodiment of the present invention has a roller groove for partially accommodating a guide rail and a roller body having a through portion formed on a side wall of the roller groove, an inner surface elastic portion and a side wall formed on an inner surface of the side wall. It includes a surface elastic portion including an outer surface elastic portion formed on the outer surface, and a fixed elastic portion to integrally connect the inner surface elastic portion and the outer surface elastic portion, the outer surface of the roller body stepped portion for receiving the outer surface elastic portion It is formed, the outer surface elastic portion is accommodated in the stepped portion is provided to be coplanar with the outer surface of the roller body.

A hanger roller for an automatic door according to another preferred embodiment of the present invention has a roller groove for partially accommodating a guide rail, and has a roller body having a through portion formed on a sidewall of the roller groove, and formed on a surface of the roller body in contact with the guide rail. It includes a surface elastic portion, and a fixed elastic portion is filled in the penetrating portion and integrally connected to the surface elastic portion, the fixed elastic portion is an inner fixed elastic portion integrally connected to the surface elastic portion, and the size is larger than the inner fixed elastic portion It is integrally connected to the inner fixed elastic portion to have an outer fixed elastic portion exposed to the outer surface of the roller body, the exposed surface of the outer fixed elastic portion exposed to the outer surface of the roller body is flush with the outer surface of the roller body Provided.

The hanger roller for an automatic door according to another preferred embodiment of the present invention includes a roller body having a penetrating portion, an elastic coating part which is injection molded integrally with the roller body, including a surface elastic part and a fixed elastic part, wherein the roller body has a guide rail. The roller groove may be formed to partially receive the through hole, and the through part may have an opening 393a communicating with the roller groove so as to penetrate the roller body along the axial direction of the roller body. It can be connected integrally with the fixed elastic portion.

According to the hanger roller for an automatic door according to the present invention, it is possible to minimize the operation noise during automatic door operation and improve the operational stability.

Particularly, according to the present invention, the slippage of the elastic coating portion on the roller body can be constrained by the fixed elastic portion filled in the through portion formed in the roller body, thereby preventing separation and separation of the elastic coating portion on the roller body. Can be.

In addition, according to the present invention, since the elastic coating portion can be formed integrally with the roller body by injection molding, the manufacturing process can be simplified.

In addition, according to the present invention can extend the life of the hanger roller, reduce the maintenance cost, it is possible to improve the efficiency of management and maintenance.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments. For reference, the same numbers in this description refer to substantially the same elements and can be described with reference to the contents described in the other drawings under the above-mentioned rules, and the contents which are judged to be obvious to the person skilled in the art or repeated can be omitted.

1 is a block diagram showing the structure of the automatic door hanger roller is applied according to the present invention, Figure 2 is a perspective view showing the structure of the automatic door hanger roller according to the present invention, Figure 3 is a automatic door hanger roller according to the present invention It is sectional drawing which shows the structure of.

As shown in Figures 1 to 3, the hanger roller according to the present invention can be applied to a conventional automatic door system.

Hereinafter, the door (10, 20) that the automatic door system is provided to selectively open and close the entrance, the drive unit 30 for providing a driving force for moving the door (10, 20), the drive force of the drive unit 30 An example including a power transmission unit for transmitting to (10, 20) and a hanger assembly 70 for connecting the power transmission unit and the door (10, 20) will be described.

The structure and opening / closing manner of the doors 10 and 20 may be variously changed according to required conditions and installation environments. For example, two doors 10 and 20 may be provided so that one end thereof faces each other, and each door 10 and 20 may be configured to slide left and right and to open and close the door in cooperation with each other. In some cases, only one door may be configured to open and close the door. Alternatively, the door may be configured to be opened or closed by three or more doors.

As the drive unit 30, a conventional drive motor may be used, and the structure and method of the power transmission unit may be variously changed according to a required condition. For example, the power transmission unit includes a timing belt 40 and at least one pair of gear pulleys 50 rotatably provided at both ends of the timing belt 40 to define a movement trajectory of the timing belt 40. Can be configured. At least one of the gear pulleys 50 may be connected to the driving motor, and the timing belt 40 may be rotated clockwise or counterclockwise by the driving force of the driving motor.

The hanger assembly 70 is mounted on the hanger bracket 80 and the hanger bracket 80 connecting the timing belt 40 and the doors 10 and 20 to hanger rollers rolling along the guide rails 60. 90, and as the timing belt 40 circulates, the hanger bracket 80 can move and the hanger roller 90 can move along the guide rails 60, resulting in the doors 10 and 20. ) Can be moved and opened simultaneously.

The hanger roller 90 includes a roller body 92 and an elastic coating portion 94, the elastic coating portion 94 to restrain the slip of the elastic coating portion 94 with respect to the roller body 92 Includes a surface elastic portion 95 and a fixed elastic portion 96.

The roller body 92 may be formed of a conventional plastic or metal material, it is not limited or limited to the present invention by the material. In addition, a roller groove 92a may be formed along the outer circumferential surface of the roller body 92 so that the guide rail 60 may be partially accommodated.

In addition, the through-hole 93 is formed in the roller body 92, the formation position and size of the through-hole 93 may be variously changed according to the required conditions and design specifications. For example, the through part 93 may be formed to penetrate the side wall of the roller groove 92a. In some cases, the through part may be formed to penetrate the central portion of the roller body along the radial direction of the roller body.

The surface elastic portion 95 and the fixed elastic portion 96 constituting the elastic coating portion 94 may be formed of a conventional urethane or rubber material, and other conventional elastic materials according to required conditions and design specifications. It can be formed as.

The surface elastic portion 95 is provided to partially wrap the surface of the roller body 92 in contact with the guide rail 60, the fixed elastic portion 96 is a through portion 93 of the roller body 92 Filled in and integrally connected with the surface elastic portion 95, the slip of the surface elastic portion 95 relative to the roller body 92 can be restrained. In addition, the surface elastic portion 95 and the fixed elastic portion 96 may be injection molded integrally with the roller body 92 at the same time.

The shape and structure of the surface elastic portion 95 may be variously changed according to the required conditions and design specifications. Hereinafter, the surface elastic portion 95 includes an inner surface elastic portion 95a formed on the inner surface of the side wall and an outer surface elastic portion 95b formed on the outer surface of the side wall, and the outer surface elastic portion 95b includes: It is formed to cover the through portion 93, and the fixed elastic portion 96 will be described with an example configured to integrally connect the inner surface elastic portion (95a) and the outer surface elastic portion (95b). Herein, the inner surface of the side wall may be understood as the surface of the roller groove 92a.

In the above-described and illustrated embodiments of the present invention, for example, the surface elastic portion is formed to partially surround the end of the roller body, but in some cases, the surface elastic portion may be provided to completely cover the surface of the roller body. .

On the other hand, in the above-described and illustrated embodiments of the present invention has been described with an example configured such that the surface elastic portion forming the elastic coating portion is provided in a protruding form on the outer surface of the roller body, in some cases the surface elastic portion of the roller body It may be provided to be coplanar with the outer surface of the roller body without protruding from the outer surface.

Hereinafter will be described for the automatic door hanger roller according to another embodiment of the present invention. 4 to 6 is a cross-sectional view showing the structure of a hanger roller for an automatic door according to another embodiment of the present invention. In addition, the same or equivalent reference numerals are given to the same or equivalent components as those described above, and detailed description thereof will be omitted.

As shown in FIG. 4, the automatic door hanger roller 190 according to another embodiment of the present invention has a roller groove 192a for partially accommodating a guide rail (see 60 in FIG. 2) and has a roller groove 192a. Surface elastic portion including a roller body 192 having a through-hole 193 formed on the sidewall, an inner surface elastic portion 195a formed on the inner surface of the sidewall, and an outer surface elastic portion 195b formed on the outer surface of the sidewall ( 195, and a fixed elastic part 196 filled in the through part 193 and integrally connecting the inner surface elastic part 195a and the outer surface elastic part 195b to each other. The outer surface elastic portion 196 is formed on the outer surface stepped portion 192c, the outer surface elastic portion 195b is accommodated in the stepped portion 192c is the same as the outer surface of the roller body 192 It is provided to form a plane.

In addition, as shown in FIG. 5, the automatic door hanger roller 290 according to another embodiment of the present invention has a roller groove 292a for partially accommodating a guide rail (see 60 of FIG. 2) and a roller groove ( The roller body 292 having the through portion 93 formed on the sidewall of the 292a, the surface elastic portion 295 formed on the surface of the roller body 292 in contact with the guide rail, and the through portion 293 are filled. And a fixed elastic portion 296 integrally connected to the surface elastic portion 295, wherein the fixed elastic portion 296 is an inner fixed elastic portion 296a integrally connected to the surface elastic portion 295, and Including the outer fixed elastic portion 296b integrally connected to the inner fixed elastic portion 296a to be extended to the inner fixed elastic portion 296a and exposed to the outer surface of the roller body 292, and the roller body ( The exposed surface of the outer fixed elastic portion 296b exposed to the outer surface of 292 is coplanar with the outer surface of the roller body 292. The lock is provided.

In addition, in each of the above-described embodiments, a plurality of projection receiving grooves 192b and 292b may be formed on the surfaces of the roller bodies 192 and 292 corresponding to the surface elastic portions 195 and 295 at a predetermined interval. The elastic coating parts 194 and 294 may have a plurality of protrusions 197 and 297 corresponding to the protrusion accommodation grooves 192b and 292b. Each of the protrusions 197 and 297 is accommodated in the corresponding protrusion accommodation grooves 192b and 292b so that the mutual contact area between the roller bodies 192 and 292 and the elastic coating portions 194 and 294 may be increased, and the roller bodies 192 and 292 may be increased. The slip of the elastic coatings 194 and 294 can be more effectively restrained.

In addition, as shown in FIG. 6, the automatic door hanger roller 390 according to another embodiment of the present invention includes a roller body 392, a surface elastic portion 395, and a fixed elastic portion 396 having a through portion 393. It includes an elastic coating portion 394 that is injection molded integrally with the roller body, wherein the roller body 392 may be formed with a roller groove 392a for partially receiving the guide rail, the through portion The 393 may have an opening 393a communicating with the roller groove 392a and may be formed to penetrate the roller body 392 along the axial direction of the roller body 392. The surface elastic portion 395 The opening 393a may be integrally connected to the fixed elastic portion 396. In addition, a stepped portion (not shown) may be formed on an outer surface of the roller body 392 to accommodate a portion of the surface elastic portion 395.

As described above, the present invention has been described with reference to the preferred embodiments of the present invention, but those skilled in the art can variously modify and devise the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. It will be appreciated that it can be changed.

1 is a block diagram showing a structure of an automatic door system to which a hanger roller according to the present invention is applied.

Figure 2 is a perspective view showing the structure of a hanger roller for an automatic door according to the present invention.

3 is a cross-sectional view showing the structure of a hanger roller for an automatic door according to the present invention.

4 to 6 is a cross-sectional view showing the structure of a hanger roller for an automatic door according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

90 hanger roller 92 roller body

94: elastic coating portion 96: fixed elastic portion

Claims (6)

In the automatic door hanger roller for guiding the slide movement of the automatic door while rolling along the guide rail, A roller body having a through portion formed therein; And A surface elastic part provided to partially wrap the surface of the roller body in contact with the guide rail and a fixed elastic part filled in the through part and integrally connected to the surface elastic part, and integrally injected with the roller body Equipped with an elastic coating portion to be molded, The fixed elastic portion hanger roller for an automatic door, characterized in that to restrain the slip of the elastic coating portion with respect to the roller body. The method of claim 1, The roller body is formed with a roller groove for partially receiving the guide rail, the through portion is formed on the side wall of the roller groove, The surface elastic portion includes an inner surface elastic portion formed on the inner surface of the side wall and an outer surface elastic portion formed on the outer surface of the side wall, The fixed elastic portion hanger roller for an automatic door, characterized in that to connect the inner surface elastic portion and the outer surface elastic portion integrally. The method of claim 2, The outer surface of the roller body is formed with a stepped portion for accommodating the outer surface elastic portion, The outer surface elastic portion is accommodated in the stepped portion is an automatic door hanger roller, characterized in that the same plane as the outer surface of the roller body. The method of claim 1, The fixed elastic portion, An inner fixed elastic part integrally connected to the surface elastic part, and an outer fixed elastic part integrally connected to the inner fixed elastic part to have an extended size than the inner fixed elastic part and exposed to an outer surface of the roller body and, The outer fixed elastic portion is an automatic door hanger roller, characterized in that the same plane as the outer surface of the roller body. The method of claim 1, Protrusion receiving groove is formed on the surface of the roller body corresponding to the surface elastic portion, The elastic coating part further comprises a projection part accommodated in the projection receiving groove. The method of claim 1, The roller body is formed with a roller groove for partially receiving the guide rail, The through part has an opening in communication with the roller groove is formed to pass through the roller body in the axial direction of the roller body, And the surface elastic part is integrally connected to the fixed elastic part at the opening.

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