KR102454708B1 - A height adjustable desk chair - Google Patents

Abstract

The present invention provides a height-adjustable desk chair. The height-adjustable desk chair can improve usage quality since the length of a pillar from the floor is adjusted so that the height of an upper plate installed in the upper part or the height of a seat is fitted in a user. The height-adjustable desk chair includes an upper structure and the pillar to simplify adjusting work. The pillar includes: a lower pillar having an accommodation space having the vertical length inside, wherein a lower end is supported on the floor; an upper pillar having the vertical length and including an upper end supporting the upper structure by being connected to the upper structure, wherein the lower part of the upper pillar is assembled while the lower part enters the upper pillar from an upper end of the accommodation space of the lower pillar; and a binding unit binding the upper pillar to the lower pillar. The pillar is to adjust the height of the upper structure from the floor. The binding unit includes: a guide cutting unit installed on one side of the lower pillar, and having the length in a downward direction in the upper part of the accommodation space, wherein the guide cutting unit is formed to be cut so that the inner side and the outer side of the guide cutting unit are penetrated; and multiple fixing bodies vertically installed at intervals on one side of the upper pillar, and protruding to the outside while penetrating the guide cutting unit. A binding groove is formed on the inner surface of the guide cutting unit. The fixing bodies are inserted into and bound with the binding groove since the binding groove is formed by being extended in a horizontal direction.

Description

{A height adjustable desk chair}

The present invention relates to a height-adjustable desk chair designed to improve the quality of use by adjusting the length of the post with respect to the floor to adjust the height of the upper plate or the seat plate provided on the upper part to be customized to the user.

Specifically, it relates to a height-adjustable desk chair with improved workability and economic feasibility, as well as a simple adjustment operation, as well as structurally simple and improved productivity.

In general, a desk and chair for a teaching aid, which is mainly used in elementary, middle, and high schools, consists of a combination of a desk designed to work through a top plate and a stool to be seated on the user's seat plate; The upper plate or the seat plate is fixed to the upper ends of each of the posts arranged as a pair, respectively.

Such a desk and chair, the user (student) is to work or study using the top plate while sitting on the seat of the chair.

On the other hand, in the conventional desk and stool in which the height of the top plate or the seat plate is fixed with respect to the floor, tall users have an uncomfortable sitting posture due to the length of their legs, and in the case of short users, the legs do not touch the ground. will occur

Accordingly, when learning using the desk is performed for a long time while seated on the stool, there is a health and hygiene problem in that users (students) in the growing phase have a considerable strain on their physical development including the spine. have.

Recently, in order to solve the problems of the high and fixed desk chairs as described above, height-adjustable desk chairs are proposed to adjust the height of the posts to form a height that is customized to the user with respect to the top plate and the seat plate.

As one of them, there is Korean Patent Application No. 10-2021-0129604 (name; desk and chair height adjusting device/2021.09.30.), and as known in the publication, the outer leg and the inside of the outer leg can be raised and lowered. an elevating body fixed to the lower part of the inner leg among the desk and stool legs consisting of an inner leg provided to be able to move and elevating and lowering the inner leg together with the inner leg; a guide frame fixed to the inside of the outer leg and vertically accommodated inside the elevating body to guide the elevating movement of the inner leg and the elevating body; A desk and chair height adjustment device comprising a; a position fixing unit for fixing the position of the inner leg and the elevating body of the guide frame in the vertical direction by lifting and lowering the position is described.

And, in Korean Patent Application No. 10-2020-0037730 (name; height adjustment device of desk and chair/2020.03.27.), as is known in the publication, the upper posts fixed to the left and right of the desk top plate or the chair seat plate are the floor It is a height adjustment device for a desk chair top that is inserted into a hollow part of a lower post fixed in a T-shape to a support to adjust the height. a socket having a rectangular engaging groove and being assembled to correspond to the lower post on which the rectangular engaging groove is formed; A height adjusting device including a sleeve cap that is closely assembled in a shape corresponding to the outer periphery of the upper end of the socket is described.

On the other hand, in Korean Utility Model Application No. 20-1999-0007263 (name; height adjustment device of desk and chair/1999.04.30.), as is known in the Gazette, the upper post pipe supporting the desk plate or the stool plate is the lower post pipe In the height adjustment device of the desk or stool for adjusting the height of the desk or stool plate while moving up and down along the inner circumferential surface of the a control block in which a gripping hole in a direction is formed to be connected to the small-diameter portion, and an insertion hole in a front-rear axis direction is formed to pass through the gripping hole; a gripping block installed so that the gripping groove formed on the front surface of the gripping hole is in close contact with the outer circumferential surface of the upper support tube while being inserted into the gripping hole; The height adjustment device of the desk and chair is described, the front and rear ends of which are respectively inserted into the insertion hole, and the eccentric part is inserted into the adjustment hole of the gripping block and configured with a cam block installed so as to move the gripping block forward and backward when rotating.

In addition, in Korea Utility Model Application No. 20-2005-0009414 (name; height adjustment mechanism for desk and chair / 2005.04.07.), as known in the publication, the height adjustment mechanism for fitting the inner pipe into the outer pipe and assembling it In this case, one end of the outer screw is cut at regular intervals up and down to form an outer socket cutout, and the inner diameter of the outer screw forms an upper and lower narrow inner circumferential slope, and an outer pipe insertion hole of a certain depth is formed inside the lower frame of the outer screw. An outer socket is provided, and an inner diameter ring groove is formed on the inner periphery maintaining a certain interval at the lower end of the bracket in which the inner pipe insertion hole is formed in the upper center to be integrally assembled with the outer diameter screw, and the inner periphery up to the inner lower end other than the inner diameter ring groove , an unlocking nut having a nut portion formed thereon to be assembled with the outer socket outer diameter screw, and having an inner pipe insertion hole formed in the upper center of the unlocking nut and having an O-ring groove in the upper and lower sides of the bracket of a size that can be inserted and removed from the lower inner diameter portion of the bracket is formed, an inner pipe insertion hole is formed in the central part, and one end of the socket integrally formed with the upper and lower narrow-type outer circumferential slopes is cut at regular intervals up and down at regular intervals to form an inner socket with an inner socket cutout, and then, inside the unlocking nut Insert the metal split O-ring into the O-ring grooves formed on the upper and lower sides of the bracket of the inner socket so that the gap between the inner pipe insertion hole and the lower end of the bracket is lubricated. In the process of screwing the assembled loosening nut into the outer threaded part of the outer socket, the outer circumferential slope of the inner socket is compressed and introduced into the inner circumferential side of the outer socket, and the inner diameter of the outer pipe inserted into the outer pipe insertion hole and the inner socket There is described a height adjustment tool for a desk and chair which is configured to mutually press the outer diameter of the inner pipe inserted in the central part of the .

Korean Patent Application No. 10-2021-0129604 (2021.09.30.) Korean Patent Application No. 10-2020-0037730 (2020.03.27.) Korean Utility Model Application No. 20-1999-0007263 (199.04.30.) Korea Utility Model Application No. 20-2005-0009414 (2005.04.07.)

However, the conventional height-adjustable desks and stools as described above have a complicated control structure for adjusting the length of the posts, resulting in poor productivity, as well as complicated control and poor workability.

The present invention has been proposed to solve the conventional problems as described above, and an object of the present invention is to adjust the height of the upper plate or seat plate provided on the upper part by adjusting the length of the post with respect to the floor to be customized to the user. The purpose of this invention is to provide a height-adjustable desk chair with improved workability and economic feasibility as well as structurally simple and improved productivity.

Height adjustable desk and chair according to the present invention for achieving the object of the present invention as described above, the upper structure and; The lower post is supported on the floor and the receiving space having a vertical length is formed therein, and the upper structure is coupled and supported at the upper end, and the lower part is assembled while entering from the upper end of the receiving space of the lower post, and the upper part having a vertical length. In a height-adjustable desk chair including a post, and a holding means for binding the upper post with respect to the lower post, the post configured to adjust the height of the upper structure with respect to the floor; The binding means may include: a guide cutout provided on one side of the lower post and having a length in a downward direction from the upper portion of the receiving space and formed so as to penetrate inside and outside; A plurality of fixtures provided with a vertical interval on one side of the upper post and protruding outward while passing through the guide cutout; including; The inner surface of the guide incision is formed to extend in the horizontal direction, characterized in that the binding groove is formed to be fastened to the fixing body.

The height adjustment desk chair according to the present invention made as described above is to adjust the height of the upper structure (top plate or seat plate) provided on the upper part to be customized to the user by adjusting the entire length of the post with respect to the floor through the binding means. has the effect of improving

In addition, when the height of the holding is adjusted through the binding means, it can be implemented through a simple operation of binding by inserting the fixtures into the binding grooves. .

In addition, it has the effect of improving the workability because the adjustment work for the height of the holding is simply made through fitting and binding.

1 is a schematic exploded perspective view showing a height-adjustable desk and chair according to an embodiment according to the present invention.
Figure 2 is a schematic perspective view showing a height-adjustable desk and chair according to this embodiment.
Figure 3 is a schematic illustration showing a height adjustable desk and chair according to this embodiment.
Figure 4 is a schematic perspective view of some excerpts showing the binding means constituting the height-adjustable desk and chair according to the present embodiment.
Figure 5 is a schematic illustration showing the binding means constituting the height-adjustable desk and chair according to the present embodiment.
6 and 7 are schematic cross-sectional views showing the binding means constituting the height-adjustable desk and chair according to the present embodiment.
Figure 8 is a schematic illustration showing the use state of the binding means constituting the height adjustable desk and chair according to the present embodiment.
Figure 9 is a schematic illustration showing the coupling member and the nut groove constituting the height-adjustable desk and chair according to the present embodiment.
10 to 12 is a schematic illustration showing a protective cap constituting the height adjustable desk and chair according to the present embodiment.

Hereinafter, with reference to the accompanying drawings, a height-adjustable desk and chair according to a preferred embodiment according to the present invention will be described in detail as follows.

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This example is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shape of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. Detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

1 to 12 is a view showing a height adjustable desk chair (1) according to an embodiment according to the present invention, the height adjustable desk chair (1) according to this embodiment, the length of the post (10) with respect to the floor It is suitably applied to adjust the height of the upper structure (top plate or seat plate) 100 provided on the upper part to be adjusted to be customized to the user.

That is, the upper structures 100 are each adjusted to have a height that is tailored to the users (students) in the growing stage, so it is suitably applied to implement versatility in use.

The height-adjustable desk chair (1) according to this embodiment includes the upper structure 100; The lower end is supported on the floor and the lower post (2) having a receiving space having a vertical length therein, the upper structure (100) is coupled and supported at the upper end, and the lower end is at the upper end of the receiving space of the lower post (2). An upper post (3) assembled while entering and having a vertical length, and a binding means (4) for binding the upper post (3) to the lower post (2) are provided, and the upper structure (100) for the floor It includes; the post 10 to adjust the height of the.

That is, when binding the upper post 3 to the lower post 2 through the binding means 4, by selectively applying the binding position, the entire length of the post 10 is determined by the user's body type. It can be adjusted as you choose to customize it.

Accordingly, the height of the upper structure 100 provided on the upper part of the upper post 3 is adjusted to fit the user, so that the quality of use is improved.

In the above, the lower post 2 includes a lower base frame 21 supported while having an area with respect to the floor; When provided with a length from one side of the upper surface of the lower base frame 21 to the upper side, the lower holding frame 22 in the shape of a 'pipe' in which the accommodation space is formed; may be included.

In the above, when the upper post 3 is provided with a length from one side of the bottom surface of the upper structure 100 to the lower side, the outer diameter is made smaller than the inner diameter of the accommodating space. The shape of the upper post frame (31); to be made to include; As for the configuration and structure, it is preferable that the configuration and structure selected by the user from among conventionally known techniques are suitably applied.

That is, the lower part of the upper post frame 31 is inserted into the lower post frame 22 to be accommodated and adjusted.

At this time, the height of the entire post 10 can be selectively adjusted by adjusting the accommodation length of the upper post frame 31 with respect to the lower post frame 22 .

In the height-adjustable desk chair (1) according to this embodiment made as described above, the binding means (4) is provided on one side of the lower post (2) and has a length from the upper part of the receiving space to the lower part while having a length inside and outside a guide cutout 41 formed so as to pass through; It has a fixture (42) which is provided with a vertical interval on one side of the upper post (3) and protrudes outwardly while passing through the guide incision (41).

That is, when the upper post frame 31 enters the upper end of the lower post frame 22 and is assembled, the fixing bodies 42 enter while being guided inside the guide cutout 41 .

At this time, the fixing body 42 protrudes while extending to the outside of the guide incision (41).

In the above, the guide cutout 41 may be formed while having a length in the downward direction from the upper end of the lower holding frame 22; It may be appropriately applied according to the user's selection.

In the above, the fixing bodies 42 may be provided while having a length in the upward direction from the lower end of the upper post frame 31; It may be appropriately applied according to the user's selection.

In the above, the fixing bodies 42 may be made of a 'rod' of a 'rod' shape having a length, and one end of the plurality of holes formed through the upper post frame 31 while having a vertical spacing therebetween. may be provided in combination with these; At this time, one end of the fixing body 42 may be fixed to the holes by force fitting and may be welded; As for the coupling configuration and structure, it is preferable that the configuration and structure selected by the user from among conventionally known techniques are suitably applied.

In the height-adjustable desk chair 1 according to this embodiment made as described above, the inner surface of the guide cutout 41 extends in the horizontal direction, and the binding groove 43 into which the fixing bodies 42 are fitted is provided. is formed

That is, when adjusting the height of the post 10 through the binding means 4, after setting the vertical height of the fixing bodies 42 on the guide cutout 41, the binding groove 43 It is implemented through a simple operation of inserting and binding to the .

Accordingly, it is structurally simple, productivity is improved, and economic benefits are realized, as well as adjustment of the height of the holding post 10 is simply performed through fitting and binding, thereby improving workability.

In the binding recess (43), the locking recess (44) supported while the lower part of the fixing body (42) is caught is provided, so that the fixing body (42) is stable without flowing in the binding recess (43). to maintain that posture.

On the other hand, in the height-adjustable desk chair (1) according to this embodiment, the support (10) is coupled while being fitted to the upper end of the receiving space of the lower support (2) to protect it from external impact, and a portion of the user A protective cap 200 may be provided to prevent damage from being fitted.

That is, by covering the upper end of the receiving space (the upper end of the lower post frame 22) that is sharply formed through the protective cap 200, it can be configured to secure structural stability.

In addition, by closing the upper opening of the guide cutout 41 through the protective cap 200, the fixing body 42 is prevented from being separated without permission through the upper opening of the guide cutout 41. .

Accordingly, structural stability is secured by preventing the upper post (3) from being separated from the lower post (2) without permission.

In the above, the protective cap 200 is at the upper end of the lower post 2 in a state in which the fixing bodies 42 of the upper post 3 are accommodated in the guide cutout 41 of the lower post 2 . can be made to be fixed.

In the height-adjustable desk chair 1 according to this embodiment made as described above, the lower post frame 22 of the lower post 2 may be rotatably provided on the upper surface of the lower base frame 21 . .

That is, when the fixing bodies 42 are inserted into the binding recess 43 to bind, the lower holding frame 22 is rotated on the lower base frame 21 so that the fixing bodies 42 are horizontal. It can be moved to the binding groove 43 by fitting it to the binding.

In the lower end of the lower post frame 22, a nut groove 221 provided on the upper surface of the lower base frame 21 and screwed to the coupling member 23 having a screw portion formed on an outer circumferential surface may be formed.

That is, when the lower end of the lower holding frame 22 is screwed to the coupling member 23 of the lower base frame 21 , as well as the body parts 42 are inserted into the binding recess 43 to bind. , through a predetermined screw rotational movement of the lower holding frame 22 , the fixing bodies 42 may move horizontally and be fitted into the binding recess 43 to be bound.

Accordingly, as a separate 'rotational movement structure' does not need to be provided, it can be easily implemented structurally.

In the height-adjustable desk chair (1) according to the present embodiment made as described above, an elastic support ring (24) configured to elastically support the lower end of the lower support frame (22) is provided on the outer peripheral surface of the coupling member (23). can

That is, the elastic support ring 24 elastically supports the lower end of the lower post frame 22 on the outer circumferential surface of the coupling member 23 , so that the lower post frame 22 is moved with respect to the coupling member 23 . It can be supported while elastically expanding and contracting against the vertical gap formed during screw movement.

Accordingly, the gap between the upper surface of the lower base frame 21 and the lower end of the lower post frame 22 is offset as the elastic support ring 24 expands and contracts.

Accordingly, structural stability is secured with respect to the coupling structure of the lower base frame 21 and the lower post frame 22 , and the lower post frame 22 flows indefinitely with respect to the lower base frame 21 . Structural safety can be realized by preventing

As described above, the height-adjustable desk chair (1) according to this embodiment is provided on one side of the lower post (2) and has a length in the downward direction from the upper part of the receiving space, and the guide incision is formed so that the inside and the outside are penetrated. A plurality of fixtures 42 provided with a vertical gap on one side of the part 41 and the upper post 3 and protruding outward while penetrating the guide cutout 41, and the guide Through the binding concave groove 43 formed on the inner surface of the cutout 41, the overall length of the post 10 with respect to the floor is adjusted to adjust the height of the upper structure 100 provided on the upper part to the user. It is characterized by a technical configuration to be a specialized technology to be controlled.

One embodiment of the present invention described above is merely exemplary, and those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications and equivalent other embodiments are possible therefrom. . Therefore, it will be well understood that the present invention is not limited to the forms recited in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims.

1: desk and chair 10: prop
100: superstructure 200: protective cap
2: lower post 21: lower base frame
22: lower holding frame 221: nut groove
23: coupling member 24: elastic support ring
3: upper post 31: upper post frame
4: binding means 41: guide incision
42: fixed body 43: binding groove
44: jamming recess

Claims (1)

a superstructure 100; The lower end is supported on the floor and the lower post (2) having a receiving space having a vertical length therein, the upper structure (100) is coupled and supported at the upper end, and the lower end is at the upper end of the receiving space of the lower post (2). An upper post (3) assembled while entering and having a vertical length, and a binding means (4) for binding the upper post (3) to the lower post (2) are provided, and the upper structure (100) for the floor A post (10) configured to adjust the height of the; including;
The binding means (4) is provided on one side of the lower post (2) and has a length in the downward direction from the upper part of the receiving space and a guide cutout part (41) formed so that the inside and the outside are penetrated, and the upper post (3) is provided with a vertical interval on one side and includes a plurality of fixtures 42 protruding outward while penetrating the guide cutout 41;
In the inner surface of the guide cutout 41, the height-adjustable desk chair (1) is formed extending in the horizontal direction to form a binding groove 43 into which the fixing bodies 42 are fitted;
The lower post (2),
When the lower base frame 21 is supported while having an area with respect to the floor, and has a length from one side of the upper surface of the lower base frame 21 to the upper side, a 'pipe' in which the accommodation space is formed. a shape of a lower post frame 22;
The lower holding frame 22,
It is provided rotatably on the upper surface of the lower base frame (21);
At the lower end of the lower post frame 22,
a nut groove 221 provided on the upper surface of the lower base frame 21 and screwed to the coupling member 23 having a screw portion formed on an outer circumferential surface is formed;
On the outer peripheral surface of the coupling member 23,
Height-adjustable desk chair, characterized in that provided with an elastic support ring (24) to elastically support the lower end of the lower post frame (22).

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