KR100434014B1 - height adjusting device in table - Google Patents

Abstract

The present invention relates to a desk equipped with a height adjustment device, each of which is fixed to the bottom surface of the top plate 11, the guide jaw 15 is formed on both sides of the lower open, the corner between the side and the guide jaw (15) A bracket 13 having a plurality of engaging holes 16 formed in its longitudinal direction; A guide 23 inserted into the bracket 13 and slid along its longitudinal direction and having a screw hole 24 formed at a bottom thereof; A hollow boss 19 positioned below the four corner portions of the upper plate 11 so as to face both bottom surfaces of the two brackets 13, a lower support 20 fixed to the lower ends of the bosses 19, and A support leg 18 made of a connecting table 21 fixed to the upper ends of the bosses 19; The upper end is fixedly supported by the guide 23 and is transported along the lower end portion of the adjusting rod 25 inserted into the two front bosses 19 of the four bosses 19; A fixing rod 26 whose upper end is fixedly supported at a corresponding rear end of the bracket 13, and whose lower end is respectively inserted into two rear bosses 19 of the four bosses 19; It has a U-shape to surround a portion of the bottom surface of the bracket 13, a plurality of lancing projections 28 are formed in the inner corners to correspond to the coupling holes 16 on both sides of the bracket 13, respectively, A detachable piece 27 having a through hole 29 formed therein; A height adjusting device including a adjusting bolt 30 which is fastened to the screw hole 24 of the guide 23 and detaches the lancing protrusion 28 of the detachable piece 27 to the engaging hole 16 of the bracket 13 is provided. Equipped with a desk.

Therefore, loosening the adjusting bolt 30 slightly detaches the lancing projections 28 of the detachable piece 27 from the coupling holes 16 of the bracket 13, and in this state, the upper plate 11 is lifted upwards or When pressed downward, the guide 23 can adjust the height of the desk while vertically moving the adjusting rod 25 and the fixed rod 26 to the boss 19 while horizontally moving along the inside of the bracket 13, and thus the height is lowered. Tightening the adjustment bolt 30 in the state that is adjusted while the lansing projection 28 of the detachable piece 27 is seated in the coupling hole 16 of the bracket 13, the horizontal transfer of the guide 23 and the adjusting rod 25 Since it can limit the height of the desk can be easily adjusted, as well as the trapezoidal support legs 18 structure to ensure that the entire desk is firmly supported.

And, since the height adjustment means detachable piece 27 and the adjustment bolt 30 is installed on the bottom surface of the bracket 13 so that it is not visible to the outside, the beauty of the overall appearance of the desk is not damaged by the adjustment means which is a mechanical component of the cold and hard feeling It was not.

Description

Desk with height adjustment device {height adjusting device in table}

The present invention relates to furniture, and more particularly to a desk having a height adjustment device for adjusting the height of the legs of the desk.

In general, because the desk is designed and manufactured based on the average height of the people who use the desk, and the top and legs are fixedly installed, the height of the desk is small for people larger than the average height and the height of the desk for people smaller than the average height. If they use such a desk, the height of the desk is too low to bend the waist, so that it is impossible to write in a correct posture or the desk is very difficult to write too high.

In order to solve this problem, a desk and a table having a height adjustment device have been developed and used to adjust the length of the desk leg, which is a cylindrical boss (2) fixed to the bottom of the top plate (1) as shown in FIG. ), A guide rod (3) inserted into the boss (2) and formed with a plurality of screw grooves (4) on the outer circumferential surface, and one of the screw grooves (4) of the plurality of screw grooves (4) coupled to the boss (2). Consists of an adjusting bolt (5) fastened to.

Desk or table having such height adjustment device to loosen the adjustment bolt (5) slightly, then lift or lower the top plate (1) and tighten the adjustment bolt (5) again to adjust the height of the legs.

Desk or table equipped with such a height adjustment device has a top plate (1) and the boss (2) and guide rods (3) for supporting it has a straight shape, with a leg structure of this type firmly secure the top plate (1) Failed to support and often fell easily with a slight push back and forth.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a desk having a height adjustment device which is easy to adjust the height of the legs and firmly supports the desk.

Desk according to the present invention height adjustment device for achieving the above object, in the desk provided with a height adjustment device, respectively fixed on both sides of the bottom of the top plate, guide jaw is formed on both sides of the open lower, A bracket having a plurality of engaging holes formed along edges of the guide jaws along its longitudinal direction; A guide inserted into the bracket and slid along its longitudinal direction and having a screw hole formed in a bottom thereof; A hollow boss positioned at four lower edges of the upper plate so as to face both bottom surfaces of the two brackets, a lower support fixed to the lower ends of the bosses, and a support bridge fixed to the upper ends of the bosses; An upper end is fixedly supported by the guide and is transferred along the lower end portion of each of the adjusting rods inserted into the two front bosses among the four bosses; A fixing rod having an upper end fixed to a corresponding rear end of the bracket, the lower end being respectively inserted into two rear bosses of the four bosses; A detachable piece having a U-shape to surround a portion of a bottom surface of the bracket, each of which has a plurality of lancing protrusions formed at an inner edge thereof to correspond to the coupling holes at both sides of the bracket, and a through-hole formed at a center thereof; It is fastened to the screw hole of the guide, characterized in that consisting of the adjustment bolt for attaching and detaching the lancing projection of the detachable piece to the coupling hole of the bracket.

Therefore, loosening the adjusting bolt slightly detaches the lancing protrusions of the detachable piece from the coupling holes of the bracket, and in such a state, when the upper plate is lifted upward or pressed downward, the guide moves horizontally along the inside of the bracket while the adjusting rod and the fixed rod are removed. The height of the desk can be adjusted by moving it vertically to the boss. When the adjusting bolt is tightened while the height is adjusted in this way, the lancing protrusion of the detachable piece rests on the coupling hole of the bracket, thereby limiting the horizontal transfer of the guide and the adjusting rod. Not only can be easily adjusted, there is an effect that the entire desk is firmly supported by a trapezoidal support leg structure.

And, since the height adjustment means detachable piece and the adjustment bolt is installed on the bottom surface of the bracket so as not visible to the outside there is an additional effect that the beauty of the entire appearance of the desk is not damaged by the adjustment means of the mechanical parts of the cold and hard feeling.

1 is a schematic perspective view showing a desk equipped with a conventional height adjusting device

Figure 2 is a perspective view showing a desk equipped with the present invention height adjustment device

3 is an exploded perspective view of FIG.

4 and 5 is a partially enlarged perspective view showing the main portion of the present invention and its separated bottom perspective view

Figure 6 and Figure 7 is a partial joining cross-sectional view showing a state in which the engaging hole of the lancing protrusion and the bracket of the detachable piece of the present invention height adjustment device separated and its A-A 'line cross-sectional view

8 and 9 are partial cross-sectional views and B-B 'line cross-sectional views showing a state in which a lancing protrusion and a coupling hole are coupled;

Figure 10 is a perspective view showing another embodiment of the present invention

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

11; Top plate 13; Brackets

15; Guide jaw 16; Coupling hole

18; Support bridge 19; boss

23; Guide 25; Adjustable rod

26; Fixed rod 27; Desorption

30; Adjusting bolt

Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

Figure 1 is a perspective view showing a desk equipped with the height adjustment device of the present invention, Figure 2 is an exploded perspective view thereof, the brackets 13 are coupled to both sides of the bottom surface of the top plate 11 by rivets 12, Two brackets (25) and two fixed rods (26) are coupled to the bracket (13), and the support legs (18) are coupled to the lower ends of the adjustment rods (25) and the fixed rods (26).

First, as shown in FIGS. 4 and 5, the bracket 13 has a U-shape in cross section, and includes an accommodating portion 14 which is open in the lower direction and has both sides of the bottom surface of the upper plate 11. It is fixed to each. And the guide jaw 15 is formed on both sides of the lower opening, a plurality of coupling holes 16 are formed at equal intervals along the longitudinal direction at the edge between the side and the guide jaw (15).

The guide 23 is inserted into the housing 14 of the bracket 13 and slides along the longitudinal direction of the housing 14, and a screw hole 24 is formed at the bottom of the guide 23 to adjust the following. Bolt 30 is fastened to it.

The support leg 18 is provided with the hollow bosses 19 which are located below the four corners of the upper plate 11 so as to face the bottom faces of both ends of the two brackets. The lower end of the bosses 19 is supported by the c-shaped lower support 20, the upper end of the bosses 19 is fixed to the straight connection rod 21, the lower end of the boss 19, the packing 22 Is fitted.

Meanwhile, the two adjusting rods 25 are fixed to the guide 23 so that the upper ends thereof are transported along the guide 23, and the lower ends of the two adjusting rods 25 are front of the four bosses 19. Are inserted into each of the two bosses 19.

The two fixing rods 26 each have their upper ends fixedly supported at corresponding rear ends of the brackets 13, and the lower ends of the fixing rods 26 are respectively attached to the two rear bosses 19 of the four bosses 19, respectively. Is inserted.

And the bottom of the bracket 13 is attached to the removable piece 27, the adjustment bolt 30 is fastened to this, the removable piece 27 has a c-shape to wrap around the bottom portion of the bracket 13, A plurality of lancing protrusions 28 are formed at the inner edge portions so as to correspond to the coupling holes 16 at both sides of the bracket 13, and a through hole 29 is formed at the center thereof.

The adjusting bolt 30 is fastened to the screw hole 24 of the guide 23 to attach and detach the lancing projection 28 of the detachable piece 27 to the engaging hole 16 of the bracket 13.

Reference numeral 17 is a hook for hanging on the top of the bracket 13, such as a bag or shoe pocket.

Desk according to the present invention having a height adjustment device of this configuration, as shown in Figures 8 and 9, the lancing projection 28 of the detachable piece 27 is coupled to the engaging hole 16 of the bracket 13, the height of the desk When used in the set state when adjusting the height of the desk as needed, loosen the adjustment bolt 30 slightly as shown in FIGS.

In this way, the detachable piece 27 is transported downward by its own weight as much as the adjustment bolt 30 is loosened, and the lancing protrusion 28 of the detachable piece is separated from the coupling hole 16 of the bracket.

Accordingly, the guide 23 is slidable in the receiving portion 14 of the bracket 13, and when the upper plate 11 is lifted up, the adjusting rod 25 and the fixing rod 26 are vertical to the outside of the boss 19. The guide 23 and the adjusting rod 25 are transferred to the upper end side of the fixing rod 26 along the receiving portion 14 of the bracket 13.

Meanwhile, when the upper plate 11 is pushed downward, the adjusting rod 25 and the fixing rod 26 are further inserted into the boss 19, and the guide 23 and the adjusting rod 25 are transferred to the front side of the bracket 13. do.

After adjusting the height of the upper plate 11 in such a manner as appropriate, and tightening the adjusting bolt 30, the inner surface of the detachable piece 27 is in close contact with the bottom surface of the bracket 13, the lancing projection 28 is the coupling hole 16 Since it is seated in the bracket 13 and the guide 23 is fixed to support.

The desk equipped with the present height adjustment device can be easily adjusted the height of the upper plate by a simple operation to loosen the adjustment bolt 30 slightly to adjust the height of the upper plate 11 and then tighten the adjustment bolt 30 again.

In addition, the desk according to the present invention has not only a structure capable of adjusting the height of the support leg 18, but also has a trapezoidal structure, the support state of the top plate 11 is very robust, and does not easily break or fall down from external impact. Has

10 is a schematic perspective view showing a state in which the height adjusting device of the present invention is installed on the chair 31, so that the seat plate 32 and the backrest 33 of the chair 31 can be moved up and down at the same time instead of the top plate 11 of the desk. In addition to the configuration, the rest of the configuration and operation are the same as described above.

The height adjusting device installed on the desk as described above may be widely applied to office furniture equipped with legs such as tables and chairs as well as a person having ordinary knowledge.

According to the desk equipped with the height adjustment device according to the present invention as described above, the lancing protrusions 28 of the detachable piece 27 are separated from the coupling holes 16 of the bracket 13 by loosening the adjusting bolt 30 slightly. When the upper plate 11 is lifted upward or downward in such a state, the guide 23 is horizontally moved along the inside of the bracket 13 and the bosses 25 and the fixed rod 26 are separated. 19) to adjust the height of the desk by vertical movement, and tightening the adjustment bolt 30 in the state in which the height is adjusted in this way, the lancing projection 28 of the detachable piece 27 is the coupling hole 16 of the bracket 13 The seat 23 is limited to the horizontal movement of the guide 23 and the adjusting rod 25, so that the height of the desk can be easily adjusted, and the entire desk is firmly supported by the trapezoidal support leg 18 structure. It works.

And, since the height adjustment means detachable piece 27 and the adjustment bolt 30 is installed on the bottom surface of the bracket 13 so that it is not visible to the outside, the beauty of the overall appearance of the desk is not damaged by the adjustment means which is a mechanical component of the cold and hard feeling There is an additional effect to avoid.

Claims (1)

The desk is equipped with a height adjustment device, The upper plate 11 is fixed on both sides of the bottom, respectively, the guide jaw 15 is formed on both sides of the lower open, a plurality of coupling holes 16 along the length direction in the corner between the side and the guide jaw 15 A bracket 13 formed; A guide 23 inserted into the bracket 13 and slid along its longitudinal direction and having a screw hole 24 formed at a bottom thereof; Hollow bosses 19 which are respectively located under the four corners of the upper plate 11 so as to face the bottom of both ends of the two brackets 13, and the lower support 20 is fixed to the lower end of the bosses 19 and A support leg 18 formed of a connecting table 21 fixed to the upper ends of the bosses 19; An adjustment rod 25 having an upper end fixedly supported by the guide 23 and being transferred along the lower end, respectively, being inserted into two bosses 19 in front of the four bosses 19; A fixing rod 26 having an upper end fixed to a corresponding rear end of the bracket 13 and having a lower end inserted into two rear bosses 19 of the four bosses 19, respectively; It has a U-shape to surround a portion of the bottom surface of the bracket 13, a plurality of lancing projections 28 are formed in each of the inner edge portion to correspond to the coupling holes 16 on both sides of the bracket 13, the center A detachable piece 27 having a through hole 29 formed therein; It is fastened to the screw hole 24 of the guide 23 is characterized in that consisting of a control bolt 30 for attaching and detaching the lancing projection 28 of the detachable piece 27 to the coupling hole 16 of the bracket 13 Desk with height adjustment.