KR101654926B1

KR101654926B1 - Sliding Load Reduction System for Sliding Door

Info

Publication number: KR101654926B1
Application number: KR1020150191485A
Authority: KR
Inventors: 박조흠
Original assignee: 주식회사 다인스
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-09-07

Abstract

The present invention relates to a roller rotating device for a sliding door. The roller rotating device for a sliding door includes: a guide rail individually mounted on the upper surface and the bottom surface of a furniture main body having a storage space; a sliding door installed to move along the guide rail to open and close the front surface of the furniture main body; and a door fixing bracket individually installed on the upper side and the lower side of the sliding door to move along the guide rail. The roller rotating device for a sliding door includes: a fixing member fixed to one side of the door fixing bracket; and a rotating member having a roller in order for the roller to move along the guide rail, wherein the rotating member is connected to the other side of the fixing member to rotate. The rotating member is connected to rotate around the fixing member, and the roller can freely rotate along a rail groove. As the roller rotates along a curve section, a load applied to the roller can be reduced. As the load is not generated in the roller, the service life of the roller can be extended. Also, the abrasion of or damage to the roller is reduced, and the sliding door can be smoothly moved.

Description

Technical Field [0001] The present invention relates to a sliding device for a sliding door,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller rotating device for a sliding door, and more particularly, to a roller rotating device for a sliding door that reduces a sliding load so that sliding is smoothly performed when the sliding door is moved.

In general, doors of furniture such as dressers and the like widely used in the home are mostly hinged doors that are assembled in a hinged interior of a dresser, and the door is opened and closed forward.

Since the door of the hinged door is opened to the front, it occupies a certain space in front of the door, and as a result, there is a disadvantage in that it is very weak in terms of space utilization in the room.

In addition, in the case of a door of a hinged door, it is difficult to apply a heavy metal door due to its structure being supported by a hinge that is vulnerable to a load, and thus there are disadvantages in applying various kinds of doors to furniture have.

In recent years, a sliding door for opening and closing a door by a sliding method has been widely used, which improves the disadvantages of the door of the hinged type.

The sliding door may be opened or closed by pushing or pulling the sliding door in one direction. The door may be provided with a roller assembly on the upper and lower sides of the door, a rail for guiding movement of the upper and lower roller assemblies, In one direction by pushing or pulling open and close.

The roller assembly for guiding the opening and closing operation of the sliding door includes means for adjusting the height of the door, means for positioning the door, means for preventing the intersection between the inner door and the outer door, A user is provided with a means for giving convenience of operation and convenience in handling the opening and closing of the door.

Further, the furniture adopting the sliding door is provided with the stopper means for relieving the impact when the door is closed so that the closing operation of the door can be performed more smoothly.

FIG. 1 is an exploded perspective view of a conventional sliding door, and FIG. 2 is a plan view of a conventional sliding door coupled to a top frame.

1 and 2, a sliding door is installed on a front surface of a furniture main body 200 so that a sliding door 210 can be opened and closed, and a guide rail 110 is installed on a top surface and a bottom surface of the furniture main body 200, And the upper surface guide rail 110 is provided on the upper side of the sliding door 210 to be opened or closed.

The guide rail 110 is formed with a rail groove 112 in which a curved section formed on both sides of the guide rail 110 is curved rearward and a straight section formed by a straight line formed in the center of the guide rail 110.

A vertical conveying roller 122 is installed on the upper connection frame 120 of the sliding door 210 and the sliding door 210 is opened and closed as the sliding door 210 is moved .

For example, Patent Document 1 below discloses a sliding door opening / closing apparatus.

The sliding door door opening / closing apparatus according to Patent Document 1 described below is provided with a rail frame mounted on an upper surface and a lower surface of a furniture so as to open / close a sliding door which is installed on a front surface of furniture having a storage space, An upper connecting frame slidable along both sides of the rail groove formed on both sides of the frame, a front and rear conveying means for sliding the door along the rail grooves formed on both sides of the lower rail frame, Wherein the front and rear conveying means includes a guide rail which is horizontally moved by a horizontal conveying roller inserted in a guide groove formed in a bottom rail frame, Is conveyed forward and backward by a conveying roll by line contact on the rails, And a transfer body formed with a vertical transfer roller that is moved along the rail groove and mounted on the lower mounting frame.

The following Patent Document 2 discloses a " variable traveling device for a sliding door for furniture ".

The driving path variable device for a furniture sliding door according to the following Patent Document 2 is a sliding device for sliding doors of a door in order to cover a storage space of furniture and is provided on the upper surface of the furniture in a width direction, A slider coupled to the upper end of each door so as to be slidably supported by the pair of doors, the slider being installed on the rail, the doors being supported by the slider, And a variable member having a carrier provided at an intersection with the rail so that the leading roller provided on the slider is released from the track of the rail when the closed position is reached and enters the stop position by an artificial operation.

Korean Patent Registration No. 10-1180469 (registered on August 31, 2012) Korean Utility Model Registration No. 20-0411166 (registered on March 6, 2006)

However, in the opening and closing apparatus of the sliding door according to the prior art 1, the horizontal conveying roller reciprocates along the guide rail in a straight line and a curved section, and the horizontal conveying roller is twisted when the curved section is moved. There is a problem that the sliding door can not be smoothly moved.

In the traveling road variable apparatus of the sliding door for furniture according to the prior art 2, the angle can be adjusted by the variable member when the linear section and the curved section are moved, but the door is totally twisted, And there is a problem that the sliding door can not be moved smoothly.

SUMMARY OF THE INVENTION An object of the present invention is to provide a roller rotating device for a sliding door in which a roller is rotated at a proper angle according to a straight line section or a curved section so that the sliding door can smoothly move.

Another object of the present invention is to provide a roller rotating device of a sliding door in which a roller is not rotated by a curvature when a roller moves along a curved section of a guide rail, so that no load is generated on the roller.

According to an aspect of the present invention, there is provided a roller rotating device for a sliding door, comprising: a guide rail mounted on an upper surface and a lower surface of a furniture main body having a storage space; And a door fixing bracket installed on the upper and lower sides of the sliding door so as to be movable along the guide rails, the apparatus comprising: a door rotatably installed at one side of the door fixing bracket, A fixing member to be fixed; And a rotary member rotatably coupled to the other side of the fixing member and provided with a roller so as to be movable along the guide rail so that the rotary member is rotatably mounted on the fixing member while being moved along the guide rail Being;
Wherein the fixing member has a fixed length; A protrusion protruding from one side of the fixed body so that the rotary member is engaged; A first hinge hole formed in the protrusion; And a first fixing block projectingly coupled to both sides of the fixing member, respectively;
The rotary member includes a roller rotatably installed at one side thereof so as to be movable along the guide rail. A rotating shaft fixed to support the roller; A second fixing block coupled to an outer surface of the rotary shaft such that the rotary shaft is stably engaged; An engaging portion having a " C " shape to be engaged with a protrusion protruding to one side of the fixing member; A second hinge hole formed in the coupling portion to be rotatably coupled to the first hinge hole; And a hinge coupled to the first hinge hole and the second hinge hole, the apparatus comprising:
A fixing hole is formed on both sides of the second fixing block, and one end of a flexible synthetic resin material is rotatably coupled to the first fixing block so as to be freely bent;
Guide holes are respectively formed in the first fixing blocks on both sides of the fixing member, and end portions of the guide rods on the opposite side of the fixing hole positions are movably inserted therein;
And a spring is installed outside the guide rod at a position between the first fixing block and the second fixing block so that the roller returns to the original position.

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As described above, according to the roller rotating device of the sliding door according to the present invention, the rotating member is rotatably coupled with the fixing member as the center, so that the roller can freely rotate along the rail groove, The load applied to the rollers can be reduced and the load on the rollers can be extended to extend the life of the rollers and the sliding door can be moved more smoothly by reducing the wear and tear of the rollers .

1 is an exploded perspective view showing a conventional sliding door,
FIG. 2 is a plan view of a state in which the upper portion of the conventional sliding door is coupled to the upper frame;
3 is a three-dimensional view showing a state in which a roller rotating device of a sliding door is installed on a fixing bracket according to a preferred embodiment of the present invention,
4 is a three-dimensional view showing a roller rotating device of a sliding door according to a preferred embodiment of the present invention,
5 is a plan view showing a roller rotating device of a sliding door according to a preferred embodiment of the present invention,
6 is a sectional view taken along line AA in Fig. 5,
FIG. 7 is a plan view showing a rotated state of a roller rotating device of a sliding door according to a preferred embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 3 is a three-dimensional view showing a state in which a roller rotating device of a sliding door according to a preferred embodiment of the present invention is installed on a fixing bracket, FIG. 4 is a perspective view of a three- FIG. 5 is a plan view showing a roller rotating device of a sliding door according to a preferred embodiment of the present invention, and FIG. 6 is a sectional view taken along line AA of FIG.

The roller rotating device of the sliding door according to the preferred embodiment of the present invention includes guide rails 110 mounted on upper and lower surfaces of a furniture main body 200 having a storage space, A sliding door 210 movably installed along the guide rail 110 and a door fixing bracket 11 installed on the upper and lower sides of the sliding door 210 so as to be movable along the guide rail 110, (10) fixed to one side of the door fixing bracket (11), a rotatable member rotatably coupled to the other side of the fixing member (10), and movable along the guide rail And a rotary member (30) provided with a roller (31).

The roller rotating device of the sliding door according to the embodiment of the present invention freely rotates the roller 31 moved together with the sliding door 210 irrespective of the straight section and the curved section to reduce the load applied to the roller 31, So that the door 210 can be smoothly moved and the roller 31 can be used for a long period of time.

As shown in FIGS. 1 and 2, the sliding door 210 is movably installed in the furniture main body 200, and the furniture main body 200 The guide rails 110 and the like provided on the upper surface of the guide rails 200 are the same, and the same names will be described with the same reference numerals.

3, the roller rotating device of the sliding door according to the present invention is installed on the door fixing bracket 11 so as to be installed on the upper or lower part of the sliding door 210 and to move simultaneously with the sliding door 210.

3 is a three-dimensional view showing a state in which the roller 31 is installed on the door fixing bracket 11. A sliding door 210 is installed on one side of the door fixing bracket 11, Or the guide rail 110 installed on the lower surface of the guide rails 110. [

It is needless to say that the door fixing bracket 11 has a substantially "A" shape, and that the door fixing bracket 11 can be modified into various shapes as necessary.

The roller rotating device includes a fixing member 10 fixed to the door fixing bracket 11 and a rotary member 30 rotatably coupled to one side of the fixing member 10.

The fixing member 10 is installed at a position spaced apart from the sliding door 210 by a predetermined distance and rotates along the rail groove 112 of the guide rail 110, A roller 31 is provided.

4 to 6, the fixing member 10 includes a fixing body 12 to which the door fixing bracket 11 is fixed, a rotary member 30 integrally extended to the fixing body 12, And a protruding portion 13 which is formed so as to be formed.

The fixed body 12 is made of a metal having rigidity because it moves while supporting the sliding door 210 and is formed to have a predetermined width and length so that the roller 31 can be stably installed.

As shown in FIG. 6, the fixed body 12 is integrally formed with the protruding portion 13 extended to one side so that the rotary member 30 is installed. A first hinge hole 14 is formed in the protrusion 13 so that the rotary member 30 can be freely rotated.

A hinge 15 is coupled to the first hinge hole 14 so as to be rotatable in a state where the rotary member 30 is coupled to the first hinge hole 14. As shown in Figures 3 to 5, And a first fixing block 16 protruding outward are respectively fixed.

Guide holes 17 are formed in the first fixing block 16 on both sides so that the guide rods 37 can move.

The rotary member 30 is rotated about the hinge 15 coupled to the first hinge hole 14 so that the roller 31 installed on one side of the rotary member 30 is rotated.

The rotary member 30 includes a roller 31 which is moved along one side of the rail groove 112 of the guide rail 110 and a fixing member which rotates the roller 31 along a curved section of the rail groove 112 And a coupling portion 34 coupled to the protruding portion 13 of the base 10.

The roller 31 is movably installed along the rail groove 112. The roller 31 is coupled to a rotary shaft 32 having a predetermined length and the rotary shaft 32 is provided with a first And the second fixing block 33 corresponding to the fixing block 16 is fixed.

The engaging portion 34 is formed with a substantially U-shaped cross-section at the tip of the rotary shaft 32 and is engaged with the protrusion 13 of the fastening member 10. The engaging portion 34 is provided with a first hinge hole The second hinge hole 35 corresponding to the second hinge hole 14 is formed.

The hinge 15 is engaged with the first hinge hole 14 of the fixing member 10 and the second hinge hole 35 of the engaging portion 34 and the rotary member 30 is engaged with the hinge 15 As shown in FIG.

Fixing holes 36 are formed on both sides of the second fixing block 33 so that the guide rods 37 are fitted and engaged with the guide rods 37. Both ends of the guide holes 17 on both sides of the fixing member 10 and the fixing A guide rod 37 made of a soft synthetic resin material is coupled between the holes 36 so as to be freely bent.

One end of the guide rod 37 is rotatably mounted on a fixing pin fixed to the fixing hole 36 and a spring 38 for applying elasticity to the rotary member 30 is provided on the outer side of the guide rod 37 Respectively.

The spring 38 urges the rotary member 30 to move back along the curved section of the rail groove 112 so that the rotary member 30 returns to its original position.

4 to 7, a detailed description will be made of a method of operating a roller-rotating device of a sliding door according to a preferred embodiment of the present invention.

FIG. 7 is a plan view showing a rotated state of a roller rotating device of a sliding door according to a preferred embodiment of the present invention.

The roller rotating device of the sliding door according to the present invention causes the roller 31 provided on the rotating member 30 to rotate along the curve in the curved section of the rail groove 112.

The fixing member 10 is installed on the door fixing bracket 11 of the sliding door 210 and a protrusion 13 extending to one side is integrally formed on one side of the fixing body 12 of the fixing member 10. A first hinge hole 14 is formed in the protrusion 13 so that the hinge 15 is engaged with the hinge 15 and a hinge 15 is coupled to the first hinge hole 14.

The hinge 15 is engaged with the first hinge hole 14 of the fixing member 10 and the second hinge hole 35 of the rotary member 30 and the rotary member 30 is rotated about the hinge 15 Rotate to join.

The first fixing block 16 is formed on both sides of the fixing member 10 and the guide holes 17 are formed in the two first fixing blocks 16 so that the guide rods 37 can freely move .

The rotary member 30 is provided with a roller 31 to be moved along the rail groove 112. The rotary block 32 of the roller 31 is provided with a second fixing block 33 ).

The first fixing block 16 is provided with a guide hole 17 for allowing the guide rod 37 to freely move and the second fixing block 33 is provided with two guide rods And the ends of the opposite ends of the guide rods 37 are movably inserted into the guide holes 17 of the first fixed block 16. The outer ends of the guide rods 37 And a spring 38 (in the form of a compression coil spring that exerts a repulsive force strictly in the outward direction).

A coupling portion 34 coupled to the protrusion 13 of the fixing member 10 is formed at the tip of the rotary shaft 32 and a second hinge hole 34 corresponding to the first hinge hole 14 35 are formed.

That is, the hinge 15 is engaged with the first hinge hole 14 and the second hinge hole 35 so that the rotary member 30 is rotatably coupled with the fixing member 10 as a reference. The rotary member 30 is freely rotatable about the hinge 15 so that the roller 31 is rotated at an angle suitable for the curve of the curve section.

As shown in Fig. 7, the rotary member 30 is rotatably coupled with the hinge 15 as a center.

That is, the rotary member 30 is rotated about the hinge 15 in the direction of the arrow in FIG.

The roller 31 constituting the rotary member 30, the rotary shaft 32, the second fixing block 33 and the engaging portion 34 are rotated about the hinge 15, And is adjusted at an appropriate angle along the radius of curvature of the curved section of the groove 112.

The rollers 31 provided on the rotary member 30 are moved along the rail grooves 112. In the linear section, the roller 31 moves as shown in FIG. 5, and in the curve section, And moves while being rotated around the hinge 15.

When the roller 31 moves along the curve section, the rotary shaft 32 rotates at the same angle as the roller 31 and the second fixed block 33 is also rotated at the same angle as the rotary shaft 32.

The guide rod 37 moves along the guide hole 17 of the first fixing block 16 and one of the two springs 38 provided on the guide rod 37 is compressed, The spring 38 of the spring 30 is extended.

Such a spring 38 applies elasticity to the second fixing block 33 as the roller 31 is moved in a straight line section so that the roller 31 is resiliently returned to the vertical direction in FIG.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

10: fixing member 11: door fixing bracket
12: Fixing body 13:
14: first hinge hole 15: hinge
16: first fixing block 17: guide hole
30: Rotating member 31: Roller
32: rotating shaft 33: second fixing block
34: engaging portion 35: second hinge hole
36: Fixing hole 37: Guide rod
38: Spring

Claims

A sliding door installed to be movable along the guide rail so as to open and close the front surface of the furniture main body, a sliding door which is movable along the guide rail, And a door fixing bracket installed on the upper side and the lower side of the door fixing bracket, respectively, the fixing device comprising: a fixing member fixed to one side of the door fixing bracket; And a rotary member rotatably coupled to the other side of the fixing member and provided with a roller so as to be movable along the guide rail so that the rotary member is rotatably mounted on the fixing member while being moved along the guide rail Being;
Wherein the fixing member has a fixed length; A protrusion protruding from one side of the fixed body so that the rotary member is engaged; A first hinge hole formed in the protrusion; And a first fixing block projectingly coupled to both sides of the fixing member, respectively;
The rotary member includes a roller rotatably installed at one side thereof so as to be movable along the guide rail. A rotating shaft fixed to support the roller; A second fixing block coupled to an outer surface of the rotary shaft such that the rotary shaft is stably engaged; An engaging portion having a " C " shape to be engaged with a protrusion protruding to one side of the fixing member; A second hinge hole formed in the coupling portion to be rotatably coupled to the first hinge hole; And a hinge coupled to the first hinge hole and the second hinge hole, the apparatus comprising:
A fixing hole is formed on both sides of the second fixing block, and one end of a flexible synthetic resin material is rotatably coupled to the first fixing block so as to be freely bent;
Guide holes are respectively formed in the first fixing blocks on both sides of the fixing member, and end portions of the guide rods on the opposite side of the fixing hole positions are movably inserted therein;
Wherein a spring is provided on the outer side of the guide rod at a position between the first fixed block and the second fixed block so that the roller returns to the original position.

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