KR200340926Y1 - Level Control Device for Furniture - Google Patents

Abstract

The present invention is to adjust the height of the furniture, the support bracket coupled to the support portion of the bottom of the furniture; A height adjusting part which is screwed with the support bracket to be height-adjusted by rotation; A rotation locking part having a female thread to be screwed between the support bracket and the height adjusting part to move up and down by rotation; And a rotation support part coupled to the lower end of the height adjustment part so as to be freely rotatable.

Description

Level Control Device for Furniture

The present invention relates to a height adjustment mechanism for adjusting the height of furniture, such as a bed, desk. For furniture that is closely related to the user's physical condition, such as a bed or desk, it is necessary to adjust its height to suit the user's physical condition, and various furniture height adjusting devices are already known.

Typical embodiments of the furniture height adjustment device is composed of a cylindrical tube coupled to a support such as a leg of the desk and screwed therein, and an adjustable portion that is screwed to the bottom of the cylindrical tube and moves up and down by rotation. However, in the case of such a structure, there is a very difficult problem due to the friction between the control unit and the bottom surface itself, the operation itself to rotate the control unit for height adjustment, even if the height adjustment is completed a separate locking device There is a problem in that the adjustment part is rotated arbitrarily with respect to the cylindrical tube to adjust the height again because it is not provided, and due to the play between the screw portion of the cylindrical tube and the screw portion of the adjusting portion, the furniture is not stably supported and the shaking is unstable. There was a problem.

The purpose of the present invention for solving the above problems is as follows.

First, it is an object of the present invention to provide a furniture height adjustment device that can facilitate the height adjustment of the furniture with a small force.

Second, it is another object of the present invention to provide a means for providing a separate locking device to maintain a stable and continuous height adjustment is completed.

Third, another object of the present invention is to provide a means for preventing shaking due to play between the screwed components of the furniture height adjusting device.

1 is an exploded perspective view of a specific embodiment of the present invention.

Figure 2 is a side view and a partial cross-sectional view of a portion of a specific embodiment of the present invention.

Figure 3 is a schematic view of a rotation locking portion constituting a specific embodiment of the present invention.

Figure 4 is a cross-sectional view of the rotary support constituting a specific embodiment of the present invention.

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

10: Bracket 11: Tightening hole

12: Female thread 20: Height adjustment part

21: Body part 22: screw rod

30: rotation lock 31: incision

32: Hole 33: Female thread

40: rotation support part 41: ball receiving part

50: Ball

The present invention for achieving the above object is to adjust the height of the furniture, the support bracket coupled to the support portion of the bottom of the furniture; A height adjusting part which is screwed with the support bracket to be height-adjusted by rotation; A rotation locking part having a female thread to be screwed between the support bracket and the height adjusting part to move up and down by rotation; And a rotation support part coupled to the lower end of the height adjustment part so as to be freely rotatable.

The support bracket is coupled to the support portion of the bottom of the furniture, such as a bed, wardrobe, desk, and table, the height adjustment portion is screwed to the support bracket, the height adjustment portion can be moved up and down by rotation. Therefore, by rotating the height adjustment unit can adjust the height of the furniture.

The lower end of the height adjustment unit is provided with the rotation support coupled to enable free rotation to minimize the friction with the bottom surface when the height adjustment unit rotates.

When the adjustment to the predetermined height is completed by the rotation of the height adjustment unit by rotating the rotary lock to move upward to fix the contact bracket to prevent the shaking of the furniture and to limit the rotation of the height adjustment unit to maintain the adjusted height Be sure to

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is an exploded perspective view of the main components of the present invention.

Support bracket 10 is coupled to the support portion of the bottom of the furniture, there is no restriction on the specific shape of the support bracket 10 is provided with a fastening hole 11 is coupled to the support portion of the bottom of the furniture. Any shape can be freely selected and used as long as the female screw 12 is formed so that the height adjustment part 20 and the screw can be coupled. The support bracket 10 is mounted on the furniture by inserting a coupling means such as a screw or bolt into the fastening hole 11.

The height adjustment part 20 is screwed to the female screw 12 of the support bracket 10. As shown in FIG. 1, the height adjusting part includes a body part 21 in which a plurality of corrugations are formed in the axial direction, and a screw rod 22 formed by extending one end of the body part 21. The screw rod 22 is fastened to the female screw 12 of the support bracket 10, and when the body portion 21 is rotated, the screw rod 22 is moved up and down in a state of being fastened with the female screw 12. . Therefore, the height adjustment unit 20 is moved up and down in a state coupled to the support bracket 10 by the rotation can be adjusted to a predetermined height, the wrinkles of the body portion 21 is more rotated when adjusting the height To facilitate.

As shown in FIG. 1, the rotation locking part 30 has a female screw 33 formed to be fastened to the screw rod 22 of the height adjusting part 20, and the screw rod 22 of the height adjusting part 20. It is positioned between the support bracket 10 and the body portion 21 of the height adjustment portion 20 in the state coupled to.

The rotation lock part 30 is a means for preventing the height adjustment part 20 adjusted to a predetermined height from being arbitrarily rotated and firmly supporting the support bracket 10. In other words, when the rotation locking portion 30 is moved upward by rotating the rotation locking portion 30 in the state of height adjustment, the rotation locking portion 30 is in contact with the support bracket 10. When the rotation locking portion 30 is completely locked by rotating the rotation locking portion 30 in a state in contact with the support bracket 10, the support bracket 10 can be prevented from shaking to stably support furniture and the like. And it can maintain the state adjusted to a predetermined height by preventing any rotation of the height adjustment unit 20.

As shown in FIG. 3, a plurality of cutouts 31 having a predetermined depth and width are formed on the outer surface of the rotation locking part 30 along the circumference thereof.

When the cutout 31 moves upward by rotating the rotation lock 30, the rotation lock 30 contacts the support bracket 10, and the frictional force between the rotation lock 30 and the support bracket 10 is increased. Substantial force is required to rotate the rotational lock 30. Therefore, when rotating by inserting a rigid rod or hexagon wrench of a suitable length in the cutout portion 31, it is possible to easily rotate the rotation locking portion 30 with much less force. When the rotation locking portion 30 is securely locked in the state in contact with the support bracket 10 in this manner, the rotation locking portion 30 prevents the shaking of the support bracket 10.

On the contrary, even when rotating downwardly by rotating the rotary locking part 30 securely attached to the support bracket 10, a large amount of force is initially required, but a rigid rod of a suitable length for the incision 31 in the same manner as described above. Alternatively, when rotating by inserting a hex wrench, etc., the rotation locking part 30 can be easily rotated downward with much less force.

In addition, as shown in Figure 3, the outer surface of the rotation locking portion 30 is formed with a hole 32 is processed to reduce the cross-sectional area stepwise depending on the depth.

The hole 32 is intended to easily rotate with less force when moving upwardly or downwardly by rotating the rotary lock 30 similarly to the cutout 31. In other words, in the case of the hexagonal cross-sectional shape shown in Fig. 3, when the hexagon wrench of a predetermined size is inserted, the hexagon wrench is inserted by the depth of the hole corresponding to the cross-sectional area that can accommodate the hexagon wrench. Therefore, it is possible to easily rotate the rotation locking portion 30 by using a hexagon wrench of various sizes. 3, the cross-sectional shape of the hole 32 is shown only in the case of hexagons and circles, but is not limited thereto, and various cross-sectional shapes may be freely selected.

Rotation support 40 is as shown in Figs. It serves to support the height adjustment unit 20. If there is no rotation support 40, when rotating the height adjusting unit 20 to adjust the height of the furniture, etc. due to the friction between the body portion 21 and the bottom surface of the height adjusting unit 20 height adjustment unit Wearing and deformation of the lower end of the 20, as well as damage to the floor surface on which the furniture is installed, the work itself to rotate the height adjustment portion 20 is very difficult.

Therefore, by installing the rotary support portion 40 that can be freely rotated at the bottom of the height adjustment portion 20 to prevent damage to the floor surface on which the furniture height adjusting device and the furniture of the present invention is installed and the height adjustment operation more conveniently and easily can do.

In addition, the ball 50 may be inserted between the height adjusting part 20 and the rotation support part 40 to further reduce the friction to perform the operation more easily.

When the ball 50 is inserted as shown in Figure 4, the rotary support 40 is provided with a ball receiving portion 41. In addition, according to the partial cross-sectional view of Figure 2 illustrates the relationship between the ball 50 is built between the height adjustment portion 20 and the rotary support portion 40.

The effects of the present invention of the above configuration is as follows.

First, it is possible to provide a furniture height adjustment device that can facilitate the height adjustment of the furniture with a small force. In other words, the rotatable support part 40 is installed at the lower end of the height adjuster 20, and the ball 50 is inserted between the height adjuster 20 and the rotatable support part 40 to adjust the height adjuster ( 20) to facilitate the rotation.

Second, by providing a separate locking device can be maintained in a stable and continuous state of height adjustment is complete. In other words, it is possible to prevent any rotation of the height adjustment unit 20 is completed, the height adjustment using the rotation lock 30.

Third, it is possible to prevent shaking due to play between the screwed components of the furniture height adjustment device. In other words, it is possible to prevent the shaking due to the play of the screwed portion of the support bracket 10 and the height adjusting portion 20 by using the rotation locking portion (30). That is, when the rotation locking unit 30 is moved upward in the state where the height adjustment is completed, the rotation locking unit 30 is in contact with the support bracket 10 and in this state, the rotation locking unit 30 is further moved upward. Further locking can prevent shaking due to play between the female screw 12 of the support bracket 10 and the screw rod 22 of the height adjusting part 20.

Claims (5)

To adjust the height of the furniture, A support bracket coupled to a support at the bottom of the furniture; A height adjusting part which is screwed with the support bracket to be height-adjusted by rotation; Rotating lock portion formed with a female screw to move up and down by rotation is screwed between the support bracket and the height adjustment portion; And, A rotation support unit coupled to the lower end of the height adjustment unit to enable free rotation; Furniture height adjustment device, characterized in that comprising a. In claim 1, The support bracket has a fastening hole coupled to the bottom of the furniture, and a female screw screwed to the height adjustment portion, The height adjustment unit is a furniture height adjustment device characterized in that it comprises a plurality of corrugated body portion formed in the axial direction, and one end of the body portion is formed to extend and coupled with the female screw of the support bracket. In claim 2, A plurality of balls (Ball) is provided between the rotation support portion and the height adjustment portion, the furniture height adjustment device, characterized in that the ball receiving portion for receiving the ball is provided in the rotation support portion. The method of claim 2 or 3, Furniture rotation adjusting device, characterized in that the rotation locking portion is formed with a plurality of incisions having a predetermined depth and width along the outer surface. The method of claim 2 or 3, The rotation locking portion is a furniture height adjustment device characterized in that the hole formed along the outer surface is processed to decrease the cross-sectional area stepwise depending on the depth.