KR200315695Y1 - Table or chair whose height can be adjusted - Google Patents

Abstract

Supporting the top plate of the desk or the seat plate of the stool, consisting of two separate parts, one of the two separate parts is inserted into the other part, each of the two separate parts are provided in a position corresponding to each other A leg provided with a first through hole and a plurality of second through holes; A cover member having a plurality of third through holes formed in a portion corresponding to a predetermined position of the first through hole and the second through hole while slidably surrounding the outer circumferential surface of the to-be-inserted portion among the two portions of the leg. ; And bolts and nuts which penetrate two or more first through third through holes having the same position in the through hole to form a passage communicating with the outside, thereby fixing the insertion part, the inserted part, and the cover member. Disclosed is a height adjustment structure for a bookcase comprising a leg rest fixed to an insertion portion located at a lower end of a leg or a non-insertion end of an insert portion and having a diameter or width larger than the diameter or width of the cover member.

Description

Bookshelf with height adjustment structure {Table or chair whose height can be adjusted}

The present invention relates to a desk and a stool, and more particularly, to a desk and a stool having a height adjusting structure.

Generally, the size and height of student bookshelves are classified and marketed and supplied in several grades according to students' height and standard body shape (meaning average height and average body shape). In general, lower grades are provided with a lower level of benches and higher grades are provided with higher levels of benches, but a higher level of benches are not provided for each individual's physical characteristics. In particular, students who do not have a standard height and standard shape will be uncomfortable with their assigned books / stools.

Therefore, there is a need for a desk and a stool having a simple structure that can adjust height and the like according to its height and body shape.

It is an object of the present invention to provide a desk and a stool that can be easily adjusted in height.

1 shows a perspective view of a desk having a height adjustment structure according to the present invention.

FIG. 2 shows an exploded view of the height adjustment structure used for the desk of FIG. 1.

Figure 3 shows a perspective view of a stool with a height adjustment structure according to the present invention.

4 shows an exploded view of the height adjustment structure used on the stool of FIG. 3.

In order to achieve the object of the present invention, the bookshelf according to the present invention supports the upper plate of the desk or the seat plate of the stool, and consists of two separate parts, and one of the two separated parts is inserted into the other part. A plurality of first through holes and a plurality of second through holes provided at positions corresponding to each other; A cover member having a plurality of third through holes formed in a portion corresponding to a predetermined position of the first through hole and the second through hole while slidably surrounding the outer circumferential surface of the to-be-inserted portion among the two portions of the leg. ; And a height adjusting structure having a position fixing means for fixing the insertion portion, the inserted portion, and the cover member through two or more first through third through holes whose positions of the through holes coincide to form a passage communicating with the outside.

In particular, when the insertion portion is located at the bottom of the leg, a leg support made of aluminum or the like having a diameter or width larger than the diameter or width of the cover member may be further fixed to the non-insertion end of the insertion portion, or the insertion portion of the leg When positioned at the lower end, the legrest having a diameter or width larger than the diameter or width of the cover member may be fixed to the non-inserted end of the insert.

Hereinafter, a desk and a stool having a height adjusting structure according to the present invention will be described with reference to FIGS. 1 to 4.

Figure 1 shows a perspective view of a desk having a height adjustment structure and Figure 2 shows an exploded view of the height adjustment structure employed in the desk.

The desk having a height adjustment structure according to the present invention is the top plate 10, the drawer 12 is attached to the bottom of the top plate 10, the support frame of the "c" type supporting the top plate 10 and the drawer ( 12) includes a connecting bar 17 connecting the support frame 15 on both sides at the bottom. The support frame 15 substantially corresponds to a leg of a desk, and is disposed while in contact with the ground and the upper support 15a having a “┎” shape having a horizontal portion and a vertical portion disposed in contact with the upper plate 10. And a lower support 15b having a "┖" shape having a horizontal portion and a vertical portion. The upper supporter 15a and the lower supporter 15b are separated, the upper supporter 15a has a hollow cylindrical shape, and the lower supporter 15b has its vertical end inserted into the vertical end of the upper supporter 15a. As long as it is possible, either an empty cylinder shape or a plate shape can be used. In addition, a plurality of first through-holes 20 are formed in the vertical portion of the upper support 15a at regular intervals along the longitudinal direction, and a predetermined interval in the vertical portion of the lower support 15b is also provided along the longitudinal direction. A plurality of second through holes 20 are formed. The number of the first through holes 20 and the second through holes 22 is determined according to the range of the height to be adjusted, and in order to secure the firmness of the height adjustment, the first through holes 20 and the second through holes. It is preferable to determine the number of the first through holes 20 and the second through holes 22 so that the height adjustment can be made while allowing (22) to overlap or match at two or more. In this embodiment, the number of first through holes 20 is six and the number of second through holes 22 is two.

Then, the lower support 15b is inserted into the upper support 15a to adjust the height, and after sliding up and down, when the desired position is reached, the predetermined portion and the second through hole of the first through hole 20 near the position. After matching the predetermined portions of the 22, the bolt 15d and the nut 15e are fastened to the through holes 20 and 22 to connect the upper support 15a and the lower support 15b to fix the height of the desk. Let's do it. That is, the height of the desk can be adjusted by using the through holes 20 and 22 of the upper support 15a and the lower support 15b inserted therein, and the bolt 15d and the nut 15e as position fixing means. do.

However, when the through holes 20 and 22, which are height adjusting portions, are directly exposed to the outside, the aesthetics are not good because of the through holes 20 and 22 where the bolt 15d and the nut 15e are not fastened. It may fill the through holes that are not fastened with various foreign substances such as dust, and rust may occur in the height adjustment part. Therefore, when it is desired to adjust the height of the desk used for a long time, the lower supporter 15b may not be flexible sliding in the upper supporter 15a, which makes the height adjustment work difficult.

In order to solve this problem, the cover member to surround the through holes 20, 22 of each support (15a, 15b) including an overlapping portion formed by the insertion when the lower support (15b) is inserted into the upper support (15a) (27) was to surround the outer peripheral surface of the upper support (15a). The cover member 27 is made of a material that is not rusted, such as aluminum, and slides in the longitudinal direction of the upper support 15a and is smaller than the number of the first through holes 20 or the second through holes 22 or two. Three third through holes 24 are provided, and in this embodiment, two through holes 24 are formed in the same manner as the number of second through holes 22. In order to adjust the height of the desk according to the present invention, the first through hole 20, the second through hole 22, and the third through hole 24 are matched, and the above-described bolt 15d and the nut 15e are aligned. Insert into the part where three through holes match.

The process of adjusting the height of the desk using the height adjustment support frame 15 is as follows.

First, the bolt and the nut are unfastened to move the upper supporter 15a or the lower supporter 15b up and down to a desired height so that the second through hole 20 and the lower supporter 15b of the upper supporter 15a are moved. The through holes 22 are matched. After the cover member 27 is slid to make the third through hole 24 provided in the cover member 27 coincide with the first through hole 20 and the second through hole 24, the through holes 20, 22 and 24, the bolt 15d is inserted and tightened, and the nut 15e is screwed to fix the position of the desk.

That is, the height of the desk can be adjusted only by sliding the upper support rod 15a or the lower support rod 15b and the cover member 27 by the operation for screwing together by releasing and tightening the bolt and nut. It can be done easily.

1 and 2, only the case in which the lower support 15b is inserted into the upper support 15a is illustrated. In contrast, the upper support 15a is inserted into the lower support 15b and the first through hole ( 20), the height of the desk may be adjusted by inserting a bolt into the second through hole 22 and the third through hole 24 and tightening with a nut.

3 and 4 show a state in which the support frame 15 of the desk described above is applied to a stool.

According to Figure 3, the stool according to the present invention is connected to the backrest 31, the seat plate 33 is integral with the backrest 31, and the support frame 34 and the support frame 34 for supporting the seat plate Four legs 35 facing the side.

Leg 35 is composed of two parts separated from each other, such as the support frame 15 of the desk shown in Figure 1, both of which are provided with a plurality of through holes, one of which is to be inserted into the other have.

Specifically, the leg 35 includes a leg rod 35a and an insertion rod 35b inserted upward from the leg rod 35a. Through-holes 40 and 42, such as through-holes 20 and 22 of FIG. 2, are formed in the leg rods 35a and the insertion rods 35b, respectively. The drawing shows a state where the through-hole 40 of the leg bar 35a and the through-hole 42 of the insertion bar 35b coincide.

The leg support 38 is fixed to the end of the insertion rod 35b which is not inserted into the leg rod 35a. The legrest 38 is a part in contact with the ground. In consideration of the fact that the leg 35 is made of steel, the legrest 38 has a large frictional force with the ground, such as rubber or plastic material, to prevent scratching. It may be made of a material that serves to fix the ground. And the diameter or width of the legrest 38 is designed to be larger than the diameter or width of the leg bar (35a).

In addition, the insertion rod 35b has a diameter enough to cover the overlapping portions formed by the insertion when the leg rod 35a is inserted and the exposed insertion rod 35b and the through holes 40 and 42 of the leg rod 35a. Alternatively, the cover member 37 having a width surrounds the outer circumferential surface of the leg rod 35a. The diameter or width of the cover member 37 is preferably larger than the diameter or width of the leg bar 35a and smaller than the diameter or width of the legrest 38. In addition, the cover member 37 has two to three third through holes 44 in the same manner as the cover member 27 shown in FIGS. 1 and 2.

In order to adjust the height of the stool, when the bolt 35c and the nut 35d which are fastened to the through-hole of the leg bar 35a, the insertion rod 35b and the cover member 37 are released, the legs are moved by gravity. The rod 35a and the cover member 37 move downward along the insertion rod 35b and are stopped by the legrest 38 provided on the lower portion of the insertion rod 35b. Since the width or diameter of the) is larger than that of the cover member 37, when holding the cover member 37 with one hand and pulling the leg bar 35a upward with the other hand, only the leg bar 35a You will move upward to create the bridge of the desired height. Then, for fixing the height, the through-hole 40 of the leg bar 35a, the through-hole 42 of the insertion rod 35b and the through-hole 44 of the cover member 37 coincide with the bolt ( 35c) and tighten with the nut (35d). On the other hand, the legrest 38 is employed only on a stool, but it is obvious that it can also be employed on the desks of FIGS.

3 and 4, the insertion rod 35b is shown only in the form of being inserted into the leg rod 35a from the bottom upward, but the positions of the insertion rod 35b and the leg rod 35a may be changed. In this case, the leg bar (35a) is fixed to the legrest (38).

As in the desk, the height adjustment can be easily performed through the bolt 35c, the nut 35d, the leg bar 35a or the insertion rod 35b, and the cover member 37. And by providing the legrest 38 larger than the diameter of the cover member 37 at the end of the insertion rod 35b, which is a part in contact with the ground, the height of the stool can be adjusted more easily.

A part supporting a desk or a stool, for example, the leg part is divided into two parts to provide a through hole in each part so that one is inserted into the other part, and the part to be inserted is surrounded by the length to be inserted. By adjusting the cover member which slides in the direction and has a smaller number of through holes than the number of through holes provided in the leg portion, the height adjustment part is prevented from being soiled or rusted by foreign materials, making the height adjustment operation difficult. The operation can be facilitated. And, by placing a footrest having a diameter or width larger than the diameter or width of the cover member in contact with the ground it is possible to make the height adjustment operation more convenient.

Claims (5)

Legs supporting the table top or the table seat The leg is composed of two separate parts, one of the two separated parts is inserted into the other part, and each of the two separated parts has a plurality of first through holes and a plurality of positions corresponding to each other. Has a second through hole, A plurality of third through-holes formed in a portion corresponding to a predetermined position of the first through hole and the second through hole while slidably surrounding an outer circumferential surface of the inserted portion of the two portions of the leg in a longitudinal direction of the leg; A cover member having a hole, Height adjustment characterized in that it has a position fixing means for fixing the insertion portion, the insertion portion and the cover member through two or more first through third through holes in which the positions of the through holes are matched to form a passage communicating with the outside. A bookshelf with the structure. The height adjustment structure of claim 1, wherein the insertion portion is positioned at the lower end of the leg, and a footrest having a diameter or width larger than the diameter or width of the cover member is fixed to the non-insertion end of the insertion portion. With a book bench. 2. The height adjustment according to claim 1, wherein the inserted part is positioned at the lower end of the leg and a leg support having a diameter or width larger than the diameter or width of the cover member is fixed to the non-inserted end of the inserted part. A bookshelf with the structure. The bookshelf having a height adjusting structure according to claim 1, wherein the number of the third through holes is smaller than the number of the first through holes. The bookshelf having a height adjustment structure according to any one of claims 1 to 4, wherein the cover member is made of aluminum.