KR20130053598A - Height adjustment device for desk and chair - Google Patents

Abstract

PURPOSE: A rotary height adjustment device for desk and chair is provided to rotate a cover and induce a fixing pin to protrude by using a guide protrusion which is formed on the cover. CONSTITUTION: A rotary height adjustment device for desk and chair comprises an upper pillar(10), a lower pillar(20), and a height adjusting member(30). The height adjusting member includes an inner body(40), a fixing pin(50), a lower cover, and an upper cover(70). A space part(41) protrudes outwardly and guides the fixing pin to protrude, and the space part and a cylindrical wall body are penetrated so that the guide hole is formed, thereby fixing the inner body to the upper portion of the lower pillar. The fixing pin is inserted into the guide hole and protrudes. The lower cover receives the inner body, and has a guide protrusion(61) protruding the fixing pin by a rotation. The upper cover is coupled to the lower cover by using a coupling member(80). A supporting surface(65) is formed at the outer surface of the lower cover and the upper cover.

Description

Height adjustment device for desk and chair {

The present invention relates to a rotary height adjusting device on a bookshelf to rotate the height adjustment member to enable the height adjustment of the top plate on the bookshelf according to his body shape, the operation method is easy and the rotary height on the bookshelf can easily adjust the height of all ages It relates to a control device.

In general, bookshelves are provided in places where work and education are required, such as hospitals, schools, and workplaces. However, it is impossible to adjust the height of a bookshelf that is commonly used, and it is simply used in the form of a size adapted to the average height of Korea. In addition, although educational institutions such as schools are equipped with benches of various sizes, it is not possible to frequently change the desk benches for the growing students who grow differently every day.

As such, the use of a desk that does not fit your body for a long time can lead to cervical vertebrae, spine, pelvis, etc. As a result, concentration decrease may occur. .

In order to solve the above problems, a number of inventions have been filed for an apparatus structure for adjusting the height of a desk.

However, the patented inventions have a problem in that the height adjustment method is made of a screw type, holding the height adjustment member with both hands and rotating several times, and takes a long time. In addition, the method of supporting the spring with the spring had a problem that the pin should be kept pulling during the height adjustment.

As the structure of most of the prior inventions is complicated, it takes time and manufacturing cost to increase, and as the number of small parts increases, the parts are damaged or easily deformed, and in the case of screw type, it is difficult to perform the functions. .

In view of the above problems, Patent Document No. 10-0698586 discloses a desk and chair height adjustment device, which has been disclosed. A fixing member having a seating portion formed to be coupled to an upper end of the fixing member, a cover member having a predetermined space portion formed between the fixing member in a state of being covered on the upper portion of the fixing member, and having an upper portion screwed with a vertical portion of the fixing member; The stopper is inserted into the fitting portion formed inside the cover member and is moved horizontally while being inserted into or removed from the fixing hole of the upper support rod, and the stopper is horizontally moved to be inserted into or removed from the fixing hole, and between the fixing member and the cover member. It consists of operating means installed in the.

However, the invention as described above, the stopper is supported by two small springs, there is a problem that can not push the stopper smoothly due to external shock or deformation of the spring during long-term use, and difficult to make a large number of small parts in the production There is a problem that the parts are easily broken or lost during external shock.

In addition, as another prior art, registered utility model No. 20-0264036 "desk or chair height adjustment device", the rotary shaft screwed to the fixed socket of the lower column and the lower inclined sphere, the outer inclined surface on the rotary shaft, vertical incision groove Cylindrical positioning tool, upper inclined ball, divided by half, upper inclined ball to be inserted into the groove side of the positioning device, an incision groove and a screw cap inserting recess are provided at the upper end of the outer peripheral surface, and the upper fixing member composed of the screw on the outer peripheral surface is sequentially fastened, and the rotating shaft The upper end of the cap is provided with a height adjustment device is integrally fixed to the rotatable cap, it is made of a configuration for inserting the height adjustment device in the upper housing of the upper column.

However, the invention as described above has the advantage that the height can be adjusted without pulling a separate pin in the height adjustment by the rotation method, while in the height adjustment process because the height adjustment to the internal screw type in the height adjustment process There is a problem to be rotated continuously, and because the height can be adjusted only when the lower column is rotated, there is a problem that is difficult to apply in the desk or stool of the frame is formed in the lower column.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

It is a purpose to provide a rotating height adjusting device on a bookshelf that is easy to adjust the height by rotating the cover easily and quickly with small force, the configuration is not complicated, simple, durable and easy to manufacture parts.

In addition, the height can be adjusted even with a small radius of rotation, the outer surface of the cover is formed to provide a rotating height adjustment device on the bookshelf that can be rotated with one hand.

The present invention, in order to implement the above problems, the upper plate supporting the upper plate and formed with a plurality of height adjustment holes, the lower column is installed vertically on the horizontal frame placed on the ground and the fastening hole is formed in the upper, and the upper column and The height adjustment member is provided between the lower support, the height adjustment member, the space portion for guiding the appearance of the fixing pin is formed to protrude to the outside, the guide hole is formed through the space portion and the cylindrical wall to form the upper upper portion An inner body fixed to the lower cover, a fixing pin inserted into the guide hole, and a lower cover formed with a guide step for receiving the inner body and releasing the fixing pin by rotation, and in a form corresponding to the lower cover. It is configured, characterized in that the rotating height adjustment device on the book comprising a top cover coupled to the lower cover and the fastening member do.

In addition, the space portion is characterized in that the protrusion formed in the corresponding position of the outer peripheral surface of the inner body, respectively.

In addition, the fixing pin is composed of a pin portion and a plate-shaped close end portion is fitted in the guide hole formed in the cylindrical wall in the space portion, a spring supported by the close end portion in the space portion, and the space portion It is screwed with the fixing part from the outside, it is characterized in that it consists of a guide portion that emerges in a state spanning the guide step and formed with a disc-shaped locking portion at the end.

"형태의 형상을 가지도록 형성되고,상기 고정핀의 안내부가 활주하는 활주부와, 상기 활주부의 양 단부에 형성되는 스토퍼로 구성되는 것을 특징으로 한다.
In addition, the guide step, respectively formed in the corresponding position in the lower cover, the predetermined width spaced apart from the inner peripheral surface of the lower cover to the center "

It is formed to have a shape of, characterized in that it is composed of a sliding portion that slides the guide portion of the fixing pin, and the stopper formed on both ends of the sliding portion.

In addition, the support surface is formed on the outer peripheral surface of the lower cover and the upper cover.

In addition, the fixing pin is characterized in that it is fitted to one or both of the inner body.

The present invention is to rotate the cover to guide the indentation of the fixing pin to the guide step formed on the cover, so that even the small turning radius can adjust the height by hovering the pin, even small and small age can easily adjust the height, Simple structure and few components make it easy to assemble and reduce manufacturing costs.

In addition, by forming a support surface on the outside of the cover there is an effect that can easily adjust the height with one hand.

1 is a perspective view of the rotary height adjustment device on a bookshelf according to the present invention.
Figure 2 is an enlarged perspective view showing a height adjustment member according to the present invention.
Figure 3 is an exploded perspective view showing a height adjustment member according to the present invention.
Figure 4 is a side cross-sectional view showing the configuration of the height adjustment member according to the present invention.
Figure 5 is a cross-sectional view showing a state in which the fixing pin of the height adjustment device according to the invention coupled to the height adjustment hole.
Figure 6 is a cross-sectional view showing a state in which the fixing pin of the height adjustment device according to the present invention is separated from the height adjustment hole.
Figure 7 is a perspective view of the height adjustment device according to the invention applied to a stool.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The present invention is applicable to both desks and stool as shown in Figure 1 or 6, and supports the upper plate (1) and the upper column 10 formed with a plurality of height adjustment holes (11),

The lower support 20 is installed perpendicular to the horizontal frame 2 placed on the ground and the fastening hole 21 is formed in the upper portion, and the height adjustment member 30 between the upper support 10 and the lower support 20 Is provided,

The height adjustment member 30,

The space 41 for guiding the appearance of the fixing pin 50 is formed to protrude outward, and the guide hole 42 is formed through the space 41 and the cylindrical wall, and is fixed to the upper portion of the lower support 20. The inner body 40 to be inserted, the fixing pin 50 is inserted into the guide hole 42, and the inner step (40) is accommodated, the guide step for projecting the fixing pin 50 by the rotation ( The lower cover 60 is formed with a 61, the upper cover 70 is configured in a form corresponding to the lower cover 60, and coupled to the lower cover 60 and the fastening member (80). .

The inner body 40 is fixed to the upper portion of the lower column 20, the guide hole 42 formed in the inner body 40 and the fastening hole 21 of the lower column 20 is located on the same line and fixed, The fixing pin 50 is inserted together with the guide hole 42 and the fastening hole 21 so that the pin portion 51a of the fixing pin 50 is selectively fitted with the height adjusting hole 11 formed in the upper column 10. do.

The space 41 is protruded at a corresponding position on the outer circumferential surface of the inner body 40, wherein the space 41 is open at the top or upper and lower portions for smooth coupling of the fixing pin 50 Preferred forms are preferred.

The fixing pin 50 is composed of a pin portion 51a and a plate-shaped close end 51b to be fitted into the guide hole 42 formed in the cylindrical wall in the space 41, and the close end 51b. A fixed portion 51 having a female screw portion formed at the center thereof,

The spring 53 supported by the close end 51b in the space part 41 and the fixing part 51 are screwed from the outside of the space part 41, and span the guide step 61. It is made up of a guide portion 52 that is in and out of state and has a disc-shaped locking portion 52a formed at an end thereof.

In addition, the close end 51b of the fixing pin 50 is larger than the diameter of the guide hole 42 formed in the inner body 40 and is supported by the spring 53.

"형태의 The guide step 61 is formed at a corresponding position in the lower cover 60, respectively, and is spaced apart from the inner circumferential surface of the lower cover 60 by a predetermined width to "

"Of form

It is formed to have a shape, the guide portion 52 of the fixing pin 50 is composed of a sliding portion 61a that slides, and a stopper 61b formed at both ends of the sliding portion 61a.

과 같이 길이에 따라 폭이 달라지게 함으로써 하부커버(60) 또는 상부커버(70)가 회전할 때 고정핀(50)이 높이조절공(11)으로부터 출몰될 수 있게 한다. 구체적으로 도 6은 상기 하부커버(60)에 형성된 안내단턱(61)에 고정핀(50)의 걸림부(52a)가 걸쳐져 있는 상태를 나타내고 있는데, 상기 하부커버(60)가 회동함에 따라 상기 걸림부(52a)를 당겨주어 고정핀(50)이 상부지주(10)에 형성된 높이조절공(11)에서 이탈되어 높이조절이 가능해지고, 이어서 도 5에서와 같이 높이조절공(11)에 결합하기 위해 원래 자리로 다시 회전시키면 공간부(41) 내에 구비된 스프링(53)이 고정핀(50)에 형성된 밀착단부(51b)를 밀어주어 고정핀(50)이 높이조절공(11)에 끼워지게 된다.
The present invention is the shape of the guide step 61

By varying the width according to the length, such that the fixing pin 50 can be released from the height adjusting hole 11 when the lower cover 60 or the upper cover 70 is rotated. Specifically, FIG. 6 illustrates a state in which the locking portion 52a of the fixing pin 50 extends to the guide step 61 formed in the lower cover 60. As the lower cover 60 rotates, the locking portion By pulling the portion 52a, the fixing pin 50 is separated from the height adjusting hole 11 formed in the upper support 10 so that the height can be adjusted, and then coupled to the height adjusting hole 11 as shown in FIG. 5. When it is rotated back to its original position, the spring 53 provided in the space portion 41 pushes the close end portion 51b formed on the fixing pin 50 so that the fixing pin 50 is fitted into the height adjusting hole 11. do.

The upper cover 70 is configured in a form corresponding to the lower cover 60. That is, the guide step 61 of the upper cover and the lower cover are coupled in a position facing each other to securely hold the locking portion 52a of the fixing pin up and down. In addition, the outer surface of the upper cover 70 and the lower cover 60 is formed with a support surface 65 can be easily rotated with one hand.

For example, the fixing pin 50 is fitted into both sides, but the present invention can be modified in a form in which the height can be adjusted by configuring the fixing pin 50 and the guide step 61 only on one side. to be.

5 and 6 will be described in detail the appearance of the fixing pin 50.

" 형상의 안내단턱(61)에 걸쳐져 있지만 고정핀(50)이 당겨지지 않은 상태로 되되, 공간부(41) 내부에 구비된 스프링(53)이 밀착단부(51b)를 밀착지지하고 있어 핀부(51a)가 높이조절공(11) 안쪽으로 돌출되어 있는 상태이다.
As shown in FIG. 5, when the fixing pin 50 is fitted into the height adjusting hole 11 formed in the upper column 10, the engaging portion 52a of the fixing pin 50 is upper and lower covers 60. Formed in "

The guide pin 61 is shaped, but the fixing pin 50 is not pulled, but the spring 53 provided in the space part 41 is in close contact with the close end 51b. 51a) is a state that protrudes into the height adjustment hole (11).

When the upper and lower covers 70 and 60 are rotated in the above state, the locking portion 52a of the fixing pin 50 is pulled along the sliding portion 61a of the guide step 61 as shown in FIG. 6. The pin portion 51a is separated from the height adjusting hole 11 by the pulling action, thereby allowing height adjustment.

In combining the components, since the inner body 40 is accommodated in the lower cover 60 and fixed to the lower support 20, the lower cover 60 is inserted into the lower support 20 in a lower state. Lowered in, the inner body 40 may be fixed to the upper portion of the lower column 20 by welding or screwing, and then the fixing pin 50 and the upper and lower cover 60 may be coupled to each other.

In the state where the lower support 20 is not fixed to the horizontal frame 2, it is also possible to combine the components and to fix the lower support 20 to the horizontal frame (2).

As described above, the upper cover 70 and the lower cover 60 are not fixed to the lower support 20 or the inner body 40, so that the upper cover 70 and the lower cover 60 may be rotated after screwing the upper cover 70.

Although described with reference to the coupling method and the embodiment as described above, of course, various modifications are possible within the technical scope of the present invention.

1: top plate 2: horizontal frame
10: upper column 11: height adjustment hole
20: lower holding 21: fastening hole
30: height adjustment member 40: the inner body
41: space portion 42: guide hole
50: fixing pin 51: fixing part
51a: pin part 51b: close end
52: guide portion 52a: locking portion
53 spring 60 lower cover 61 guide step 61a sliding part 61b stopper 65 support surface
70: upper cover 80: fastening member

Claims (6)

An upper column 10 supporting the upper plate 1 and having a plurality of height adjustment holes 11,
A lower support 20 installed perpendicular to the horizontal frame 2 placed on the ground and having a fastening hole 21 formed thereon;
The height adjusting member 30 is provided between the upper support 10 and the lower support 20,
The height adjustment member 30,
A space portion 41 for guiding the appearance of the fixing pin 50 protrudes outward, and a guide hole 42 is formed through the space portion 41 and the cylindrical wall to form an upper portion of the lower support 20. Internal body 40 is fixed,
A fixing pin 50 which is inserted into the guide hole 42 and is sunk,
A lower cover 60 having the inner body 40 accommodated therein and having a guide step 61 for releasing the fixing pin 50 by rotation;
The lower cover 60 is configured in a form corresponding to the upper cover 70, the rotary height adjustment device comprising a top cover 70 is coupled to the lower cover 60 and the fastening member (80).
The method of claim 1, wherein
The space portion 41,
Rotating height adjustment device on a bookcase, characterized in that the protrusions are formed at the corresponding positions of the outer circumferential surface of the inner body (40).

The method of claim 1,
The fixing pin 50,
A fixing portion 51 composed of a pin portion 51a and a plate-shaped close end 51b and fitted into the guide hole 42 formed in the cylindrical wall in the space 41;
A spring 53 supported by the close end 51b in the space 41;
The guide portion 52 which is screwed with the fixing portion 51 from the outside of the space portion 41 and shed in a state spanning the guide step 61 and has a disc-shaped locking portion 52a formed at an end thereof. Rotary height adjustment device on a bookcase, characterized in that.
The method of claim 1,
The guide step 61,
Is formed in the corresponding position in the lower cover 60, respectively,
A predetermined width is spaced apart from the inner circumferential surface of the lower cover 60 to the center portion.

"Of form
Is formed to have a shape,
A sliding part 61a in which the guide part 52 of the fixing pin 50 slides,
Rotating height adjustment device on a bookcase, characterized in that consisting of stoppers (61b) formed on both ends of the sliding portion (61a).
The method of claim 1,
Rotating height adjustment device on a bookcase, characterized in that the support surface 65 is formed on the outer circumferential surface of the lower cover 60 and the upper cover 70.
The method of claim 1,
The fixed pin 50 is a rotating height adjustment device on the book, characterized in that fitted to one or both of the inner body (40).

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