KR101953225B1 - Upper roller apparatus for sliding door - Google Patents

Abstract

An upper roller device for a sliding door according to the present invention, which is an outside roller device mounted at an upper part of an outside door and inserted into an upper frame mounted on an upper plate to support the upper part of the outside door to be able to slide. The outside roller device comprises: a door bracket mounted on the upper part of the outside door; a roller bracket which is installed at the door bracket to be able to move up and down and on which a roller is mounted; a height adjustment unit installed between the door bracket and the roller bracket to adjust height of the roller; and a separation preventing device mounted on the roller bracket to be able to move linearly in a back and forth direction and catch in the upper frame, wherein the separation preventing device includes: a separation preventing member mounted on an upper surface of the roller bracket to be able to linearly move and catch in a hooking unit formed at the upper frame to prevent the roller from being separated from a first rail unit; an actuation lever hinged at the roller bracket to be able to rotate; and a motion transforming unit formed between the actuation lever and the separation preventing member and if the actuation lever rotates, transforming kinetic energy to make the separation preventing member to move linearly, thereby preventing the door from being separated from the upper frame.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an upper roller device for a sliding door,

The present invention relates to an upper roller device of a sliding door which prevents rollers of a sliding door from being detached from the frame.

Generally, a built-in cabinet is installed in the residential space currently being built to increase the efficiency of storage. A plurality of sliding doors are installed in the built-in cabinet to perform a built-in cabinet opening and closing operation while sliding.

An upper roller unit is mounted on the upper part of the door and an upper roller unit is slidably moved on the lower part of the door. A lower roller device is mounted which is supported as far as possible.

A conventional built-in bowler roller deviation preventing device for an outside door is rotatably mounted on a rotary shaft formed on an upper portion of a device body on which an outer roller is mounted, as disclosed in Patent Document 10-1070300 (Sep. 28, 2011) A release preventing portion which is brought into contact with a lower portion of the detachment prevention bracket portion of the sliding bracket to prevent the apparatus main body from being moved upward to prevent the outer roller from being detached from the second rail, And an interval adjusting bolt for adjusting the interval between the stop portions.

However, in the conventional roller departure prevention apparatus, since the departure prevention portion is engaged with the departure prevention bracket portion while being rotated by the rotation shaft, there is a problem that the departure prevention portion is separated from the departure prevention bracket portion by the impact of opening and closing the door.

In addition, when the door is separated from the rail, the conventional roller departure prevention apparatus is required to separate the departure prevention portion from the departure prevention bracket portion by rotating the departure prevention portion. However, there is a problem that it is difficult to rotate the departure prevention portion.

Patent Registration No. 10-1070300 (September 28, 2011)

Accordingly, it is an object of the present invention to provide a safety device that can prevent the release preventing member from being disengaged by an impact when the door is opened and closed because the release preventing member can be linearly moved and retained by the elastic force of the spring, The upper roller device for a sliding door.

Another object of the present invention is to provide a sliding door for a sliding door which is easy to work and which can be easily moved forward and backward since a release lever is installed behind the roller unit and the release preventing member is linearly moved by the rotation operation of the lever, Device.

In order to achieve the above object, a sliding door detachment prevention apparatus of the present invention includes an outer roller device mounted on an upper portion of an outer door and inserted into an upper frame mounted on an upper plate to slidably support an upper portion of the outer door A roller bracket mounted on the door bracket so as to be movable up and down in a vertical direction and on which a roller is mounted, and a roller bracket installed between the door bracket and the roller bracket, And a release preventing device mounted on the roller bracket so as to be linearly movable in the forward and backward directions and engaged with the upper frame to prevent the roller from being separated from the upper frame, Is mounted on the upper surface of the roller bracket so as to be linearly movable And an engaging portion formed on the upper frame to prevent the roller from being separated from the first rail, an operation lever rotatably hinged to the roller bracket, And a motion converting unit that converts the motion force to linearly move the release preventing member when the operation lever is rotated.

The upper frame includes a furniture fixing part fixed to the upper plate of the furniture, a vertical part extending vertically from the furniture fixing part, a horizontal part extending horizontally at a right angle to the end part of the vertical part, A first rail protrusion formed so as to protrude from the outer circumference of the first roller protrusion and having a roller of the outer roller device inserted therein for rolling motion; And a latching portion extending horizontally from the furniture fixing portion and engaged with the detachment preventing member of the detachment prevention device, wherein the furniture fixing portion, the vertical portion, the horizontal portion, the first rail protrusion, the second rail protrusion, The part is formed integrally.

And a second damper mounting part having a first damper mounting part for mounting a first damper to perform the damping action of the outer door and a second damper for performing a damping action of the inner door are integrally formed on the upper frame. do.

The first rail protrusion and the second rail protrusion are formed to protrude in a semicircular shape, and the outer circumferential surface of the roller is formed with a concave rail groove part inserted into the first rail protrusion part and the second rail protrusion part.

The elevation adjustment device includes a guide groove portion formed in a vertical direction at a center of a lower surface of a first vertical plate of the roller bracket, an elevation member that is slidably supported by the guide groove portion and fixed to the door bracket, And a height adjusting bolt whose upper end is rotatably mounted on a first vertical plate of the roller bracket and rotated so that the elevating member is vertically moved up and down.

And a spring is provided between the release preventing member and the upper surface of the roller bracket to provide an elastic force in a direction in which the release preventing member is engaged with the engagement portion of the upper frame.

Wherein the lever includes a handle portion protruding from a rear surface of the roller bracket and rotatably held by a hand, and a hinge connection portion connected to the handle portion and rotatably supported by a hinge shaft on an upper surface of the roller bracket, The hinge connector according to any one of claims 1 to 3, wherein the hinge connection portion includes a hinge connection portion, a hinge connection portion, and a hinge connection portion. The hinge connection portion includes a hinge connection portion, And an operating slot portion formed in the direction of the arrow.

As described above, the upper roller device of the sliding door of the present invention can maintain the state that the release preventing member is linearly moved and held by the elastic force of the spring, so that the release preventing member is prevented from being detached by the impact when the door is opened and closed The reliability can be improved.

In addition, since the lever is provided at the rear of the roller device and the release preventing member is linearly moved by the rotation operation of the lever, the advance and retreat of the release preventing member can be facilitated and the operation is easy and convenient.

1 is a sectional view of an upper roller device of a sliding door according to an embodiment of the present invention.
2 is an exploded perspective view of the upper roller device in one embodiment of the present invention.
3 is a perspective view of an upper roller unit of a sliding door according to an embodiment of the present invention.
4 is a perspective view of the departure prevention apparatus of the upper roller unit according to the embodiment of the present invention.
5 is a plan view of the departure prevention apparatus of the upper roller unit according to the embodiment of the present invention.
6 is a plan view showing an operation state of the departure prevention apparatus of the upper roller unit according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.

1 is a sectional view of an upper roller device of a sliding door according to an embodiment of the present invention.

The sliding door according to an embodiment includes an upper frame 10 mounted on the upper plate 100 of the furniture, a lower roller unit 20 mounted on the upper portions of the doors 20 and 22, And a lower roller unit (not shown) which is slidably supported on a lower frame mounted on a lower portion of the furniture, and is mounted on a lower portion of the doors 20 and 22.

The furniture can be applied to various storage cabinets with sliding doors including a built-in cabinet.

Here, the doors 20, 22 include an outer door 20 located on the outside and an inner door 22 located on the inside, and the upper roller device 30 includes an outer side door 20 mounted on the outer door 20 A roller device 32, and an inner roller device 34 mounted to the inner door.

The upper frame 10 includes a furniture fixing portion 12 fixed to the upper plate 100 of the furniture, a vertical portion 14 extending vertically in the furniture fixing portion 12, A first rail protrusion 46 formed on the upper surface of the horizontal portion 16 and supported by the rollers 42 of the outer roller device 32 for rolling motion, And a second rail protruding portion 48 disposed at a predetermined distance from the first rail protruding portion 46 and supported by the roller 44 of the inner roller device 34 and rolling.

The first rail protruding portion 46 and the second rail protruding portion 48 are inserted into the rail groove portions 52 and 54 formed on the outer surface of the rollers 42 and 44 in the form of a semicircular protrusion. Since the first rail protrusion 46 and the second rail protrusion 48 are formed as semicircular protrusions, it is possible to prevent foreign matter from being inserted.

A first damper mounting portion 62 is formed on an inner surface of the vertical portion 14 to mount a first damper 56 for damping the outer door 20. The lower portion of the horizontal portion 16 has an inner door A second damper mounting portion 64 to which a second damper 58 for performing the damping action of the first damper 22 is mounted is formed.

Since the first damper mounting portion 62 and the second damper mounting portion 64 on which the first damper 56 and the second damper 56 are mounted are integrally formed on the upper frame 10 as described above, A separate structure is unnecessary, so that the assembly process can be simplified and the number of parts can be reduced.

The upper frame 10 is formed with a latching portion 66 for latching the release preventing device 70 to prevent the roller 42 of the outer roller device 32 from being disengaged from the first rail protruding portion 46. The latching portion 66 extends horizontally rearward from the furniture fixing portion 12 of the upper frame 10 to latch the escape prevention device 70 therebetween.

FIG. 2 is an exploded perspective view of an upper roller unit according to an embodiment of the present invention, and FIG. 3 is a perspective view of an upper roller unit according to an embodiment of the present invention.

2 and 3, the outer roller device 32 includes a door bracket 80 mounted on the upper portion of the outer door 20 and a roller bracket 80 installed on the door bracket 80 so as to be vertically movable up and down, A height adjusting unit 84 provided between the door bracket 80 and the roller bracket 82 to adjust the height of the roller 42 and a roller bracket 82 provided between the door bracket 80 and the roller bracket 82, A roller 42 mounted to the upper frame 10 and capable of rolling movement on the first rail protruding portion 46 of the upper frame 10 to slidably support the outer door 20, (70) for preventing the roller (42) from being disengaged from the first rail projection (46).

The door bracket 80 is in the form of a flat plate, and bolt fastening holes 86 are formed at both edges to bolt the outer door 20. A pin fixing portion 90 is formed on the inner side of the bolt fastening hole 86 to fix the guide pin 88 which supports the roller bracket 82 so that the roller bracket 82 can move up and down.

The roller bracket 82 includes a first vertical plate 92 disposed vertically so as to be mounted on the door bracket 80 and a second vertical plate 92 bent perpendicularly at the upper end of the first vertical plate 92 and extending in the horizontal direction A flat plate 94 and a second vertical plate 96 bent at right angles downward at the end of the horizontal plate 94 and rotatably supported by the roller 42. [

Guide slots 98 are formed at both edges of the first vertical plate 92 to receive the guide pins 88 and move in the vertical direction.

The roller 42 is rotatably supported on the front surface of the second vertical plate 96 by a hinge shaft, and on the outer circumferential surface thereof, a concave rail groove portion 52 is formed. The rail 42 has a first rail Is inserted into the projecting portion (46) and rolls along the first rail projecting portion (46).

The height adjusting unit 84 includes a guide groove portion 102 formed in the center of the lower surface of the first vertical plate 92 of the roller bracket 82 in the vertical direction and a guide groove portion 102 slidably supported in the guide groove portion 102, The elevating member 106 is screwed to the elevating member 106 and the upper end of the elevating member 106 is rotatably mounted on the first vertical plate 92 of the roller bracket 82 And includes a height adjustment bolt 108 that is lifted and raised in the vertical direction when the lifting member 106 is rotated.

The elevating member 106 is provided at its rear surface with a protruding portion 112 inserted into a supporting hole portion 110 opened in the vertical direction at the center of the lower surface of the door bracket 80, A slide portion 116 is slidably supported in the up and down direction and a female screw portion 126 is formed at the center of the slide portion 126 so that the height adjustment bolt 108 is screwed in the vertical direction.

The upper surface of the guide groove portion 102 is formed with a latching groove portion 128 for holding the upper end of the height adjusting bolt 108 to be rotatable.

The height adjusting bolt 108 includes a head portion 122 into which a tool is inserted to rotate using a tool or the like, a male screw portion 120 screwed to the female screw portion 126 of the elevating member 106, And a locking protrusion 124 formed at an end of the locking protrusion 120 and engaged with the locking protrusion 128.

When the height adjusting bolt 108 is rotated using a tool or the like, the height adjusting bolt 108 is engaged with the engaging groove 128 formed in the roller bracket 82, The roller bracket 82 is prevented from being disengaged from the roller bracket 82 because the roller 124 is in the engaged state.

When the height adjusting bolt 108 is rotated, the elevating member 84 screwed with the height adjusting bolt 108 is moved in the vertical direction. Then, the height of the roller 42 is adjusted while the door bracket 80 to which the height adjusting bolt 108 is fixed is relatively lifted and lowered relative to the roller bracket 82.

As shown in FIGS. 4 and 5, the departure prevention device 70 is mounted on the upper surface of the horizontal plate 94 of the roller bracket 82 so as to be linearly movable, A release preventing member 72 for preventing the roller 42 from being separated from the first rail protruding portion 46 by being engaged with the roller 66 and the roller 66, And a motion converting unit 74 which is provided between the operation lever 74 and the release preventing member 72 and converts the motion force so that the release preventing member 72 is linearly moved by rotating the operation lever 74 76).

The release preventing member 72 has a pair of through slots 150 formed in the longitudinal direction thereof and a guide pin 152 fixed to the upper surface of the roller bracket 82 is inserted into the slot 150, The preventing member 72 is mounted on the horizontal plate 94 of the roller bracket 82 so as to be linearly movable.

The release preventing member 72 is provided with a spring 160 for preventing the release preventing member 72 from being retreated by an impact or the like when the release preventing member 72 is opened or closed by providing an elastic force in the direction in which the release preventing member 72 is advanced .

A spring support 156 is vertically installed on the upper surface of the roller bracket 82 to support one end of the spring 160 and a spring support 156 is provided on the release prevention member 72 when the release prevention member 72 is linearly moved. A spring receiving portion 162 is formed on the inner surface of the release preventing member 72 to receive the spring 160 and support the other end of the spring 160 .

As described above, the spring 160 is provided between the roller bracket 82 and the release preventing member 72 to provide an elastic force in the direction in which the release preventing member 72 is advanced to thereby arbitrarily retract the release preventing member 72 prevent.

The lever 74 has a handle portion 170 disposed at a position higher than the upper surface of the roller bracket 82 to the rear of the roller bracket 82 so that the operator can operate the handle portion 170. The handle portion 170 is connected to the handle portion 170, And a hinge connection portion 172 rotatably supported by a hinge shaft 174 on the upper surface of the hinge connection portion 82. [

The motion converting portion 76 includes an operating projection formed to protrude from a hinge connection portion 172 of the lever 74 so as to protrude from a position eccentric to the lever 74. The movement converting portion 76 is formed on the separation preventing member 72, 72 extending longitudinally in the width direction.

When the lever 74 is rotated about the hinge shaft 174, the actuating projection 178 is pivoted in an arc shape and the actuating projection 178 is inserted into the releasing preventing member 72 by the inserted actuating slot 180. [ Is linearly moved.

6 is a plan view illustrating the operation of the departure prevention apparatus according to an embodiment of the present invention.

First, when the lever 72 is positioned in Fig. 5, the operation projection 178 is positioned at one end of the operation slot portion 180. [ In this state, the release preventing member 72 is in a retracted state, so that the release preventing member 72 is separated from the latching portion 66 formed on the upper frame 10.

6, when the lever 72 is rotated in this state, the actuating projection 178 is moved along the actuating slot portion 180 and is positioned at the other end of the actuating slot portion 180, The release preventing member 72 is advanced by the pivot movement of the projection 178 and is engaged with the latching portion 66 formed on the upper frame 10. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Various changes and modifications may be made by those skilled in the art.

10: upper frame 20: outer door
22: inner door 30: upper roller device
32: outer roller device 34: inner roller device
42: roller 46: first rail projection
70: Departure prevention device 72:
80: Door bracket 82: Roller bracket
84: Height adjustment unit

Claims (7)

An outer roller device mounted on an upper portion of an outer door and inserted in an upper frame mounted on an upper plate to slidably support an upper portion of the outer door,
Wherein the outer roller device comprises a door bracket mounted on an upper portion of the outer door;
A roller bracket mounted on the door bracket so as to be movable up and down and on which the rollers are mounted;
A height adjusting unit installed between the door bracket and the roller bracket to adjust the height of the roller; And
And a separation preventing device mounted on the roller bracket so as to be linearly movable in the front and rear direction and engaged with the upper frame to prevent the roller from being separated from the upper frame,
The separation preventing device may include a separation preventing member which is mounted on the upper surface of the roller bracket so as to be linearly movable and which is engaged with a latch formed on the upper frame to prevent the roller from being separated from the first rail;
An operating lever rotatably hinged to the roller bracket; And
And a motion converting unit formed between the operation lever and the separation preventing member to rotate the operation lever so that the movement preventing member is linearly moved. The method according to claim 1,
The upper frame being fixed to a top plate of the furniture;
A vertical portion extending vertically from the furniture fixing portion;
A horizontal portion extending horizontally at a right angle to an end portion of the vertical portion;
A first rail protrusion protruding from an upper surface of the horizontal portion and having a roller of the outer roller device inserted and rolling;
A second rail protrusion disposed at a predetermined distance from the first rail protrusion and inserted and rolled by a roller of the inner roller device; And
And a latching portion extending in the horizontal direction at the furniture fixing portion and hooking the release preventing member of the separation preventing device. 3. The method of claim 2,
And a second damper mounting part having a first damper mounting part for mounting a first damper to perform the damping action of the outer door and a second damper for performing a damping action of the inner door are integrally formed on the upper frame. The upper roller device of the sliding door. 3. The method of claim 2,
Wherein the first rail protruding portion and the second rail protruding portion are formed to protrude in a semicircular shape and a concave rail groove portion inserted into the first rail protruding portion and the second rail protruding portion is formed on an outer circumferential surface of the roller. The upper roller device of the door. The method according to claim 1,
Wherein the height adjustment unit comprises: a guide groove portion formed in a vertical direction at a center of a lower surface of a first vertical plate of the roller bracket;
A lifting member slidably supported in the guide groove and fixed to the door bracket; And
And a height adjusting bolt screwed to the elevating member and having an upper end rotatably mounted on the first vertical plate of the roller bracket and rotated so that the elevating member is vertically moved upward and downward. The method according to claim 1,
Wherein a spring is provided between the release preventing member and the upper surface of the roller bracket to provide an elastic force in a direction in which the release preventing member is engaged with the engagement portion of the upper frame. The method according to claim 1,
The lever includes a handle portion protruding from the rear surface of the roller bracket and rotatably held by the handle portion; And
And a hinge connection portion connected to the handle portion and rotatably supported by a hinge shaft on an upper surface of the roller bracket,
The movement converting unit includes an operation protrusion formed to protrude from an eccentric position in the hinge connection part, and an operation protrusion formed on the release preventing member, the operation protrusion being inserted and the release protector being linearly moved when the operation protrusion is pivotally moved, And an operating slot formed in the width direction of the sliding door.

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