KR200219991Y1 - Height Adjusting Device In Chair - Google Patents

Abstract

The present invention relates to a chair having a height adjusting device, in a chair having a height adjusting device, each of which is fixed to both sides of the bottom surface of the seat plate (11) of the chair and has a long guide groove (33) formed on the side thereof. A plurality of fixing grooves 34 formed on the upper and lower sides of the guide grooves 33, and the brackets 30 having rails 31 formed on both sides of the lower ends of the guide grooves 33; Coupling member having a vertical cross-section 'c' shape so that the rail groove 41 is formed so as to slide along the rail 31 on both sides, the through hole 42 is formed on the rail groove 41 upper side ( 40); A spring 43 coupled between both side through-holes 42 of the coupling member 40; A semicircular fixing part 45 is formed to be fitted into a pair of fixing grooves 34 of the upper and lower parts of the bracket 30, and an extension part supported on one side of the bracket 30 on one side of the fixing part 45 ( A fixed lever 44 for forming and supporting the coupling member 40; The fastener 37 which supports the guide groove 33 of the bracket 30 and the through hole 42 of the coupling member 40 and is connected to the fixing lever 44 to be coupled by the fixing nut 38. Wow; Four are supported on the lower side of the four corners of the seat plate 11, two adjacent pairs of a pair are provided to form both sides of the trapezoidal shape, the height adjustment device by the angle change is made to support without shaking and the coupling member 40 Guide rods 18 fixed to and supported at the respective ends; When the bottom of the four guide rods 18 are coupled so as to slide, the bottom was provided with a chair equipped with a height adjusting device, characterized in that consisting of a boss 19 is supported on the ground.

Therefore, when the fixing lever 44 is operated downward, the fixing part 45 is coupled to the fixing groove 34 so that the coupling member 40 is fixed so that the guide rod 18 is inserted into or pulled out of the boss 19. Therefore, the seat plate 11 is not lifted accordingly, and when the fixing lever 44 is operated upward to separate the fixing part 45 from the fixing groove 34, the coupling member 40 is bracket 30. In the state of being able to be relatively freely transported in the rail 31 of the () and lifting the seat plate 11, the coupling member 40 is transferred to the center side of the bracket 30, the guide rod 18 in the boss 19 When the pulled out, the appropriately raised fixing lever 44 is operated to the lower side again, the fixing part 45 is coupled to the fixing groove 34 so that the coupling member 40 is fixedly supported on the bracket 30, the fixing lever (44) to the upper side by separating the fixing part 45 from the fixing groove 34 and then lowering the seat plate 11 when the coupling member When the guide rod 18 is inserted into the boss 19 while the 40 is transferred to the outside of the bracket 30, the guide rod 18 is lowered properly, and then the fixing lever 44 is operated to set the adjusted state. This relatively simple and both sides of the furniture is supported by a trapezoidal bridge structure to ensure that the entire furniture is firmly supported.

Description

Height Adjusting Device In Chair

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

In general, the legs of the chair are fixedly supported on the top plate, so the average height of the average person is produced based on the bar, people taller or smaller than the average height was a significant problem.

In order to solve this problem, a chair has been developed and used to adjust the length of the leg, Figure 1 is a partial perspective view showing the existing, the boss 4 is provided on the bottom of the seat plate (1) and the boss (4) There is a plurality of coupling grooves (6) are formed at equal intervals and the guide rod (5) is connected to the support portion (3) is inserted into the lower end, between the boss (4) and the coupling groove (6) of the guide rod (5) The bolt 7 is fastened.

Such a chair is to loosen the adjustment bolt (7) slightly and then raise or lower the seat plate (1) and tighten the adjustment bolt (7) again to set the height of the adjusted support leg (2).

However, in order to smoothly adjust the height, the support leg 2 between the seat plate 1 and the support part 3 has a straight shape. With this type of structure, the seat plate could not be firmly supported. Falling was frequent.

An object of the present invention for solving the above problems is to provide a chair with a height adjustment device to facilitate the height adjustment of the legs and to firmly support the chair.

The chair is provided with a height adjustment device of the present invention for achieving the object, in the height adjustment device of the chair, respectively fixed to both sides of the bottom surface of the seat of the chair, a long guide groove is formed on the side and a plurality of the guide groove in the upper and lower sides A fixing groove is formed and a rail is formed on both sides of the lower end along the longitudinal direction thereof; A coupling member having a vertical cross section having a 'c' shape so that a rail groove is formed to slide along both sides of the rail, and a through hole formed on the rail groove; A spring coupled between both side through-holes of the coupling member; A fixing lever having a semicircular shape fitted into a pair of fixing grooves of the upper and lower parts of the bracket, and an extension part supported on one side of the bracket on one side of the fixing part to fix and support the coupling member; A fixture configured to support the guide groove of the bracket and the through hole of the coupling member and to be connected to the fixing lever and coupled by a fixing nut; Four are supported on the lower side of the four corners of the seat plate, two adjacent pairs of a pair are provided to form both sides of the trapezoidal shape to adjust the height by the change of angle to support without shaking and guides fixed to the coupling member respectively Rods; When the bottom of the four guide rods are coupled so as to slide, the bottom was provided with a chair having a height adjusting device, characterized in that made of a boss that is supported on the ground.

Therefore, by moving the fixing lever up and down to move the coupling member coupled to the rail of the bracket, when the coupling member gathers inward, the guide rod is drawn out from the boss, and the operation of adjusting the height of the desk while being inserted is relatively simple, and the trapezoidal shape Supported by the bridge structure, the entire furniture is firm.

1 is a perspective view showing a conventional height adjusting device

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

3 is a partially enlarged exploded perspective view of FIG.

4 and 5 are cross-sectional views of the use state.

6 and 7 are front views showing the height adjustment state

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

11; Seat 30; Brackets

31; Rail 33; Guide

34; Fixing groove 40; Joining member

41; Rail groove 44; Fixed lever

45; Fixture

Specific features and advantages of the present invention will become more apparent from the following description with reference to the accompanying drawings.

Figure 2 is a perspective view showing a chair equipped with the height adjustment device of the present invention, Figure 3 is an exploded perspective view, Figures 4 and 5 are cross-sectional view of the use state, Figures 6 and 7 are front views showing the height adjustment state, The chair equipped with the height adjustment device of the present invention is fixed to the bracket 30 on both sides of the bottom surface of the seat plate (11). The bracket 30 is fixed on both sides of the bottom surface of the seat plate 11 of the furniture, the guide groove 33 and a plurality of fixing grooves 34 are formed.

Here, the guide groove 33 is formed in the longitudinal direction on one outer surface and the fixing groove 34 is formed at a predetermined equal intervals.

A rail 31 is formed in the lower portion of the bracket 30 along its longitudinal direction and is inserted and guided along the rail groove 41 formed in the coupling member 40.

One side coupling member 40 is coupled to the rail 31 and then fixed with a bolt 35 and a nut 36, the corresponding side coupling member 40 is coupled to the fixing nut 38 and the fixture 37 It passes through the groove 33, the fixing lever 44 is coupled to the fixing hole 37 by connecting the fixing hole 46 and the coupling hole 38 by the fixing pin 47.

The through hole 42 of the coupling member 40 is formed from the outer side to the inner side, and the coupling member 40 coupled to the groove 33 is provided with a spring 43 between the through holes 42.

On the other hand, the upper side of the guide rod 18 is coupled to both sides of the bracket 30 to support the four corners of the seat plate 11, the upper end of the two guide rods 18, the lower end of the two coupling members 40 It is fixed to the support, two adjacent guide rods 18 are provided to form the shape of both sides of the trapezoid.

The bosses 19 are coupled to the lower ends of the four guide rods 18, and these bosses 19 are supported by each other by the connecting table 20.

The desk provided with the height-adjusting device of the present invention has such a structure that the fastener 37 is inserted into the through hole 42 of the coupling member 40 and the groove 33 of the bracket 30, and the coupling hole of the fastener 37 is provided. The fixed portion 45 is fixed to the fixed lever 44 and the fixed portion 44 formed on the fixed lever 44 and the fixing groove 34 formed on the bracket 30 to operate downward. Is coupled to the groove 34 is limited so that the coupling member 40 is not transferred to the left and right from the rail 31, when the transfer of the coupling member 40 is limited, the guide rod 18 is inserted into the boss 19 or It is not drawn out, and thus the seat plate 11 is not lifted.

On the other hand, to adjust the height of the seat plate 11 by holding the extension portion 47 formed on the fixed lever 44 to operate the fixing lever 44 to the upper side to separate the fixing portion 45 from the fixing groove 34 In this case, the coupling member 40 may be relatively freely transferred within the rail 31 of the bracket 30.

In this state, when the seat plate 11 is lifted, the coupling member 40 is transferred to the center side of the bracket 30, and the guide rod 18 is drawn out in the boss 19, and the lever 44, which is properly raised again, is lifted. When operated downward, the fixing part 45 is coupled to the fixing groove 34 so that the coupling member 40 is fixedly supported by the bracket 30.

In addition, by operating the fixing lever 44 to the upper side to lower the seat plate 11 separated from the fixing groove 34, the coupling member 40 is transferred to the outside of the bracket 30 while the guide rod When 18 is inserted into the boss 19, it is lowered appropriately and then the lever 44 is operated to set the adjusted state.

The chair having a height adjustment device of the present invention can support the seat plate 11 more firmly than the conventional straight leg structure because the entire leg structure supporting the seat plate 11 has a trapezoidal shape.

In addition, when the height of the seat plate 11 is provided so that the upper end of the guide rod 18 to form one side of the leg to be transferred to the left and right, it was possible to adjust the height of the leg by the angle change.

According to the chair equipped with a height adjustment device according to the present invention as described above, when the fixing lever 44 is operated downward, the fixing portion 45 is coupled to the fixing groove 34 to fix the coupling member 40. The guide rod 18 is not inserted into or pulled out of the boss 19 so that the seat plate 11 is not lifted, and the fixing lever 44 is operated upward to fix the fixing part 45 to the fixing groove 45. When the coupling member 40 is separated from the coupling member 40, the coupling member 40 may be relatively freely transferred within the guide rail 31 of the bracket 30. When the upper plate 11 is lifted up, the coupling member 40 may be attached to the bracket 30. Guide rod 18 in the boss 19 is drawn out while being transferred to the center of the), and when the appropriately raised fixing lever 44 is operated downward again, the fixing part 45 is coupled to the fixing groove 34. The coupling member 40 is fixedly supported on the bracket 30, by operating the fixing lever 44 upwards When the top plate 45 is removed from the fixing groove 34 and the seat plate 11 is lowered, when the guide member 18 is inserted into the boss 19 while the coupling member 40 is transferred to the outside of the bracket 30. And, by properly lowering the lever 44 can be operated to set the adjusted state, the operation is relatively simple, since both sides of the furniture is supported by a trapezoidal bridge structure has the effect that the entire furniture is firmly supported.

Claims (1)

In the height adjustment device of the chair, The seat plate 11 of the chair is fixed to both sides of the bottom, respectively, a guide groove 33 having a long length is formed on the side, and a plurality of fixing grooves 34 are formed on the upper and lower sides of the guide groove 33, A bracket 30 formed with a rail 31 along the longitudinal direction; Coupling member having a vertical cross-section 'c' shape so that the rail groove 41 is formed so as to slide along the rail 31 on both sides, the through hole 42 is formed on the rail groove 41 upper side ( 40); A spring 43 coupled between both side through-holes 42 of the coupling member 40; A semicircular fixing part 45 is formed to be fitted into a pair of fixing grooves 34 of the upper and lower parts of the bracket 30, and an extension part supported on one side of the bracket 30 on one side of the fixing part 45 ( A fixed lever 44 for forming and supporting the coupling member 40; The fastener 37 which supports the guide groove 33 of the bracket 30 and the through hole 42 of the coupling member 40 and is connected to the fixing lever 44 to be coupled by the fixing nut 38. Wow; Four are supported on the lower side of the four corners of the seat plate 11, two adjacent pairs of a pair are provided to form both sides of the trapezoidal shape, the height adjustment device by the angle change is made to support without shaking and the coupling member 40 Guide rods 18 fixed to and supported at the respective ends; Chairs having a height adjusting device, characterized in that the lower guide is made of a boss 19 is supported on the ground when the four guide rods 18 are coupled to the bottom of the slide.