KR102505960B1 - Chair Damping Device For Chair Integrated Table - Google Patents

Abstract

The present invention relates to a table having a plurality of chairs. More specifically, according to the present invention, when a chair is pulled out of a top plate, the chair may be temporarily fixed. Conversely, the chair can be released. In addition, a rotational speed of the chair is suppressed and the chair is accommodated while being buffered. In addition, a chair damping apparatus of a chair-integrated table of the present invention includes a stopper so that chairs are aligned side by side on the same line when the chairs are stored. The chair damping apparatus of the chair-integrated table comprises: a fixation plate (201); a sleeve (206); a movement block (210); a fixation block (220); a second elastic means; a pressurization means; a leg (16); and a damping means.

Description

Chair damping device for chair integrated table {Chair Damping Device For Chair Integrated Table}

The present invention relates to a table having a plurality of chairs, and more particularly, to an automatic chair storage device for a chair-integrated table in which an empty chair is automatically stored under a top plate immediately when a person sitting on the chair stands up. When you sit on a chair, it descends toward the ground and is supported, and when you stand up from the chair, the chair rises from the ground and the back automatically returns to the table, so you don't have to clean up the back of the chair. It relates to an alignment device, and also can temporarily fix the pulled out chair when the chair is pulled out of the top plate, and can release it conversely, and when the chair is stored, the rotational speed of the chair is suppressed or buffered while being accommodated, It relates to a chair damping device for a chair-integrated table equipped with a stopper for aligning each chair on the same line when the chair is stored.

The "chair integrated table" as defined in the present invention encompasses a table in which a plurality of chairs are coupled to one top plate, and the term "storage" defined in this specification refers to putting a chair under the top plate of the table. The term "withdrawal" as defined in , refers to pulling a chair out of the table top from under the table top.

Conventional tables related to the present invention are Patent Registration No. 10-1067573 "Foldable Chair Integrated Table", Patent Registration No. 10-1038163 "Foldable Chair Integrated Table", Patent Registration No. 10-0799188 "Foldable Chair Integrated Table", Registered Utility Model No. 20-0415058 "Chair-integrated Dining Table" and Patent Registration No. 10-1090420 "Foldable Chair-integrated Table".

In the above-described conventional table, when a person sitting on a chair stands up, the empty chair is lifted off the ground and stored under the table. At this time, the back of the chair collides with the table, causing impact noise and damaging the collision part, so most of the The table adopts a chair without a backrest.

In the case of a very small number of tables, there are chairs with backrests, but in these tables, the storage angles of each stored backrest are not arranged on the same line, but are individually arranged, so you have to clean the backrests one by one so that they are aligned on the same line. In addition, when the chair is pulled out, the backrest rotates and collides with the top plate to be damaged. In addition, the rotated backrest narrows the space between the backrest and the top plate, making it difficult for the body to enter and exit. .

In addition, the drawn-out chair has a problem in that a safety accident occurs due to the body colliding with the chair that is stored due to the elasticity of the spring that continues to act in the direction of being stored, and also the chair that is withdrawn when cleaning under the table is required. It is inconvenient to place a heavy object on the seat of the chair or hold the chair with your hands to fix it.

On the other hand, the present inventor has proposed a table with a buffering (or damping) function so that the chair is gradually stored under the top plate in Registered Patent No. 10-2364025-0000 (February 14, 2022), but the above Registered Patent No. 10-2364025-0000 It is possible to implement a damping function in which the chairs are gradually stored during the retracting operation, but it is difficult to accommodate each stored chair to be positioned on the same line, and the damper applied to the above invention is expensive, so there is a great disadvantage in manufacturing cost, and frequent chairs The damping ability of the damper is easily weakened due to the withdrawal and storage operation of the damper, and when replacing a damper with a weakened damping function, it is difficult and difficult to replace because the entire component must be disassembled and assembled. Also, when assembling each chair on the table, each chair There is a distinct problem in that it is difficult to assemble the chair as well as the backrest of the chair to be aligned on the same line.

The present inventors came up with an idea to solve the various problems of the above-mentioned chair-integrated table, and there are remarkable achievements, so we intend to propose it through the present invention.

A first object of the present invention is to provide an automatic chair storage device for a chair-integrated table in which an empty chair is automatically stored under the table when a person sitting on the chair stands up.

A second object of the present invention is to lower the chair to the ground when sitting on the chair and to be supported by the ground, and on the contrary, when standing up from the chair, the chair rises from the ground and the backrest automatically returns to the table, so that the backrest of the chair needs to be cleaned. It is intended to provide an automatic chair backrest alignment device for a chair integrated table without any

A third object of the present invention is to be able to temporarily fix the pulled out chair when the chair is pulled out of the top plate and release it conversely, so that when the chair is stored, it is not quickly stored but gradually stored, and when each chair is stored It is intended to provide a chair damping device for a chair integrated table equipped with a stopper for aligning each chair side by side on the same line.

A table 10 having a plurality of chairs for realizing the object of the present invention includes an automatic chair back aligning device 100, an automatic chair storage device 200, and a chair damping unit.

The above-mentioned automatic chair backrest alignment device 100,

an empty housing 101 to which the connecting member 14 is coupled;

a fixing member 104 that accommodates the chair support 23 so as to be able to rotate and move up and down and is fixed within the housing 101;

a movable member 103 fixed to the chair support 23 to be spaced apart from the fixing member 104;

first elastic means 105 positioned on the outer diameter of the chair support 23 so that both ends thereof are fixed to the movable member 103 and the fixing member 104, respectively;

The aforementioned chair support 23 includes a closing member 102 rotatably accommodated and fixed to the periphery of the housing 101 .

The above-described chair support 23 may further be coupled with feet 25 that can be grounded to the ground.

Therefore, the above-mentioned chair support 23 can not only be rotated to its original position by the torsional stress inherent in the above-mentioned first elastic means 105, but also can be floated upward by the compressive stress.

As shown in FIGS. 4A and 4B, the backrests 22 (FIG. 1) are aligned on the same line with the top plate 11 when the chair support 23 is rotated to its original position by the aforementioned torsional stress ( 102) or the movable member 103, a stopper 102a may be further provided.

In this way, since rotation is restricted by the stopper 102a when the chair is stored, each backrest 22 can be aligned on the same line.

The aforementioned automatic chair storage device 200,

a fixed plate 201 having a shaft 201b having a predetermined length and fixed within the rotating shaft 15 to which the connecting member 14 is coupled;

a sleeve 206 having a pair of long holes 206b arranged in the axial direction of the aforementioned shaft 201b on both symmetrical outer walls and coupled to be fixed in the leg 16;

A movable block having a protrusion 211 located in the aforementioned long hole 206b and a helical inclined surface 210a disposed in the axial direction of the sleeve 206 and movably coupled in the axial direction of the shaft 201b (210) and;

A surface facing the inclined surface 210a of the movable block 210 is provided with a spiral inclined surface 220a symmetrical to the inclined surface 210a, and is fixed to rotate together with the shaft 201b in the sleeve 206. fixed block 220 and;

a second elastic means coupled to the sleeve 206 and providing elasticity in a circumferential direction to the shaft 201b penetrating the fixing block 220;

a pressing means for pressing the movable block 210 toward the fixed block 220;

The sleeve 206 is fixedly embedded and includes a leg 16 coupled to the upper plate support 12.

In the above-described automatic chair back alignment device 100, the chair support 23, the connecting member 14, and the fixing plate 201 are elastic in the direction in which the chair is accommodated by the second elastic means.

Therefore, when the chair 20 is pulled out, the shaft 201b and the fixing block 220 coupled to the connecting member 14 and the fixing plate are rotated together around the leg, and the above-mentioned movable block is moved by the pressing means on both inclined surfaces 210a. ) (220a) is in close contact with each other while sliding, the elastic force applied to the movable block 210 is weakened.

Conversely, when a person sitting on the chair 20 stands up, the empty chair 20 is rotated in the storage direction by the elasticity inherent in the shaft 201b by the second elastic means, and the movable block 210 acts as a pressure means. It rises while overcoming elasticity.

Therefore, when the chair 20 is stored or withdrawn, the elastic force inherent in the movable block 210 varies according to the rotational direction of the shaft 201b, and the inherent elastic force increases as the chair is rotated in the storage direction. this is suppressed

The aforementioned fixing plate 201 may further include a stopper 201a for limiting a rotation angle. The above-described stopper 201a may be implemented by protruding from the outer diameter of the fixing plate 201 and providing a locking piece 206a on the outer periphery of the sleeve 206 described above.

In this way, when the fixing plate 201 is rotated together with the connecting member 14, it can be rotated only to the position where the locking piece 206a is attached. Therefore, the maximum withdrawal angle (angle) of the chair 20 can be changed by the position where the hooking piece 206a is provided on the sleeve 206 .

The chair damping means according to the third purpose can be implemented by providing one or more locking protrusions 212 and locking jaws 221a on the inclined surfaces 210a and 220a of the above-mentioned blocks 210 and 220. .

In this way, while the chair 20 is stored or withdrawn, the above-mentioned protrusion 212 passes through the protrusion 221a or is fixed there, so that the connecting member 14 rotates around the leg 16. It can temporarily slow down speed or stop rotational motion.

Accordingly, when the chair is stored, the chair is slowly stored while being flexible and softly cushioned, and each chair can be aligned in a predetermined position.

In the chair 20 according to the present invention, the seat 21 can be raised and lowered by the automatic chair backrest alignment device 100, the backrest 22 can be rotated (returned) to its original position, and the above-described chair automatic The rotational motion of the storage device 200 can implement storage and withdrawal operations, and the seat damping means can buffer the storage (rotation) speed of the chair, and the chair is positioned at a predetermined position during storage or withdrawal. Each chair and backrest can be automatically aligned.

According to the effect according to the first object of the present invention, in the chair-integrated table, the empty chair connected to the connection member is received by the second elastic means while being lifted in the air by the pressurizing means, and can be gradually received by the damping action.

As an effect according to the second object of the present invention, when the chair is stored, the chair support is raised by the torsional stress and compressive stress inherent in the compression spring, the backrest is rotated to its original position, and each backrest is positioned at the position determined by the stopper. It is aligned, so there is no need to rearrange the backs of each chair to align them on the same line.

The effect according to the third object of the present invention is to suppress the storage (rotation) speed of the chair by the locking protrusions and the locking jaws provided on both inclined surfaces when the chair is stored, and the rotation can be stopped at the position of the locking jaw or stopper.

As a result, when the chair is stored, the storage speed can be temporarily buffered, each chair can be aligned at a predetermined position when the chair is stored, and when the chair is pulled out, it can be fixed so that the chair does not rotate in the storage direction. Conversely, if an external force is applied to the chair so that the protrusion is disengaged from the protrusion, the chair and backrest can be immediately stored by the automatic chair storage device.

Therefore, in the table according to the present invention, when the chair is stored, the chair back is not damaged by colliding with the table, and since the rotational speed according to the storage of the chair is buffered, there is no safety accident caused by collision with the body, and the chair It can also solve the problem that the space between the backrest and the top plate is narrowed when the body is pulled out, making it inconvenient for the body to enter and exit.

According to the present invention, a chair with a backrest can be employed as a table.

1 is a perspective view showing a table to which the present invention is applied.
FIG. 2 is a perspective view illustrating an extract of the device for automatically aligning a chair back shown in FIG. 1 .
FIG. 3 is an exploded perspective view illustrating a main part of the automatic chair back alignment device shown in FIG. 2 .
Figure 4 is a longitudinal sectional view of the automatic chair back alignment device shown in Figure 3;
FIG. 4A is a longitudinal cross-sectional view of the device for automatically aligning chair backs shown in FIG. 3 .
Figure 4b is a perspective view showing the movable member and the fixed member shown in Figure 3 by extracting.
5 is an exploded perspective view showing the detailed configuration of the automatic chair storage device shown in FIG. 2;
FIG. 6 is a view similar to FIG. 5, and is an exploded perspective view showing a detailed configuration of the automatic chair storage device.
FIG. 7 is a plan view illustrating a fixing plate and a sleeve shown in FIG. 4 .
FIG. 8 is a perspective view showing a movable block (FIG. 8a) and a fixed block (FIG. 8b) shown in FIG. 4, respectively.
9 is a longitudinal cross-sectional view of the automatic chair storage device shown in FIG. 4;
FIG. 10 is a perspective view similar to FIG. 8, showing a preferred embodiment of a chair damping means, and is a perspective view of a movable block (FIG. 10A) and a fixed block (FIG. 10B) extracted from FIG.

All references, including publications, patent applications, and patents, cited herein are identified as if each reference were individually and expressly indicated to be incorporated herein by reference and are the same as if set forth herein in its entirety. To that extent, it is incorporated herein by reference.

In the context of describing the invention (particularly in the context of the following claims), the use of the singular designations, "at least one" and similar designations refer to both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. be interpreted as including Use of the term "at least one" following a list of one or more items (eg, "at least one of A and B") refers to the listed items unless otherwise indicated herein or clearly contradicted by context. It should be construed as meaning one item (A or B) selected from, or a combination of two or more (A and B) of the listed items. The terms "comprising", "having" and "including" are to be interpreted as open-ended terms (ie, meaning "including but not limited to") unless otherwise stated.

Recitation of ranges of values herein is intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, each separate value as if are incorporated herein as if individually set forth herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context.

The use of any and all examples, or exemplary language (eg, "such as") provided herein is merely to better illustrate the invention and does not limit the scope of the invention unless otherwise claimed. . No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail here. However, this is not intended to limit the present invention to specific embodiments, and should be understood as including all modifications, equivalents or substitutes included in the spirit and technical scope of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention.

However, since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text.

For example, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea, since various modifications and forms can be made in various embodiments.

In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

In this specification, this embodiment is provided to complete the disclosure of the present invention and to completely inform those skilled in the art of the scope of the invention to which the present invention belongs. And the invention is only defined by the scope of the claims.

Thus, in some embodiments, well-known components, well-known operations and well-known techniques have not been described in detail in order to avoid obscuring the interpretation of the present invention.

On the other hand, the meaning of the terms described in the present invention is not limited to the dictionary meaning, and should be understood as follows.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise.

In general, the terms defined in the dictionary used should be interpreted as being consistent with the meaning in the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

Hereinafter, a preferred embodiment of the integrated chair table according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, FIG. 1 is a perspective view showing a table to which the present invention is applied. The table 10 employed in the present invention includes an automatic chair back alignment device (100, FIGS. 200, Fig. 5, Fig. 6) and a chair damping means. Detailed configurations included in the above table will be sequentially described below.

The table 10 shown in FIG. 1 includes a top plate 11 and a plurality of chairs 20 .

The upper plate 11 described above is supported by the upper plate supports 12 and 13 supported on the ground, and the chair 20 is supported by the chair support 23 that is lowered by a load when seated.

An automatic chair storage device 200 to be described below may be coupled to an end of the upper plate support 12 described above.

As shown in FIG. 1 , the aforementioned chair 20 includes a seat 21, a backrest 22, and a chair support 23.

The aforementioned chair support 23 may include an automatic chair back aligning device 100, and the chair back automatic aligning device 100 may be connected to the chair automatic retracting device 200 through a connecting member 14 (FIG. 2). can

The automatic chair backrest aligning apparatus 100 described above may be connected to each other through the chair back automatic aligning apparatus 100 and the above-described connecting member 14 .

Thus, the chair support 23 can be rotated in the direction in which the chair is stored or taken out in conjunction with the automatic chair storage device 200, and at the same time can be moved up and down and rotated back to its original position by the automatic chair back alignment device 100. there is.

FIG. 2 is a perspective view of main parts of the automatic chair storage device 200 and the automatic chair back alignment device 100 shown in FIG. 1, and FIG. Figure 4a is an exploded perspective view showing an assembled state, Figure 4a is a longitudinal sectional view of the automatic chair back alignment device 100 shown in Figure 3, Figure 4b is a perspective view showing the upper and lower fixing members extracted, with reference to the accompanying drawings A preferred embodiment of the device for automatically aligning chair backs (100) will be described.

As shown in FIG. 3, the chair back automatic aligning device 100 according to the present invention,

a cylindrical housing 101 to which the aforementioned connecting member 14 is coupled;

a fixing member 104 that accommodates the chair support 23 so as to be able to rotate and move up and down and is fixed within the housing 101;

a movable member 103 fixed to the chair support 23 to be spaced apart from the fixing member 104;

first elastic means 105 coupled to the outer diameter of the chair support 23 so that both ends thereof are fixed to the movable member 103 and the fixing member 104, respectively;

The aforementioned chair support 23 includes a closing member 102 rotatably accommodated and fixed to the periphery of the housing 101 .

The above-described chair support 23 may be further coupled with feet 25 supported on the ground.

The above-described housing 101 has a cylindrical shape having a predetermined length, and an end of the above-described connecting member 14 may be fixed to its outer diameter.

The upper end of the chair support 23 described above is fixed to the lower surface of the seat 21, and is movably and rotatably coupled to the housing 101 described above.

The lower fixing member 104 described above is coupled to be fixed to the inner diameter of the housing 101 described above.

The aforementioned movable member 103 moves the chair support 23 up and down in the axial direction of the housing 101 and is coupled to the outer diameter of the chair support 23 within the housing 101 at the same time.

The aforementioned fixing member 104 is coupled to the lower side of the aforementioned housing 101 so as to be fixed to its inner diameter.

Thus, the above-described movable member 103 can move up and down and rotate within the housing 101 .

As shown in FIG. 4, the above-described first elastic means 105 is installed in the above-described housing 101 so as to be located between the above-described movable member 103 and the fixed member 104, and both ends of the above-described movable member 105 It may be a torsion coil spring fixed to the member 103 and the fixing member 104, respectively.

Since the above-described chair support 23 has torsional stress and compressive stress inherent in the torsion coil spring, it can be rotated to its original position by torsional stress and returned to its original position toward the upper side of the chair by compressive stress.

As shown in FIGS. 4A and 4B, the backrests 22 (FIG. 1) are aligned on the same line with the top plate 11 when the chair support 23 is rotated to its original position by the aforementioned torsional stress ( 102) or the movable member 103, a stopper 102a may be further provided.

More specifically, when the backrest 22 is returned to its original position, either the closing member 102 or the movable member 103 is used so that each backrest 22 (FIG. 1) is positioned parallel to the top plate 11 on the same line. It can be implemented by providing a stopper 102a at the corresponding side and providing a cutout 103c for limiting the rotation angle of the stopper 102a.

In this way, since the stopper 102a rotates only within the cutout 103c, the maximum rotation angle of the backrest when the chair is pulled out as well as the storage position of the backrest when each chair is stored can be applied.

Therefore, when a person sits on the chair, the seat 21 (FIG. 1) and the chair support 23 descend while overcoming the elasticity of the first elastic means 105, and conversely, when the person sitting on the chair stands up, the seat supports the first While rising by the compressive stress inherent in the elastic means 105, the chair back can be immediately returned to its original position by torsional stress.

Hereinafter, a preferred embodiment of the automatic chair storage device of the present invention employed in a table will be described with reference to the accompanying drawings.

Referring to FIGS. 5 and 6 , FIGS. 5 and 6 are exploded perspective views illustrating an assembly example of a detailed configuration of the automatic chair storage device 200 shown in FIG. 2 .

The chair automatic storage device 200 is rotatably mounted in a cylindrical leg 16 fixed to a top plate support 12 .

The automatic chair storage device 200,

A fixed plate 201 having a shaft 201b fixed in the rotational shaft 15 connected to the connecting member 14;

a sleeve 206 having a pair of long holes 206b disposed in the axial direction on both symmetrical outer walls and fixed in the leg 16;

A movable block 210 having a protrusion 211 located in the long hole 206b and a helical inclined surface 210a disposed in the axial direction of the sleeve 206 and movably coupled in the axial direction of the shaft 201b. )class;

A surface facing the inclined surface 210a of the movable block 210 is provided with a spiral inclined surface 220a symmetrical to the inclined surface 210a, and is rotatably attached to the shaft 201b in the inner diameter of the sleeve 206. A fixed block 220 and;

a second elastic means coupled to the sleeve 206 and providing elasticity in a circumferential direction to the shaft 201b penetrating the fixing block 220;

a pressing means for pressing the movable block 210 toward the fixed block 220;

The sleeve 206 is fixedly built in and includes a leg 16 coupled to the upper plate support 12 .

The other end of the connection member 14 connected to the chair support 23 of the rotation shaft 15 described above may be fixed, and a cap 17 may be coupled to the upper portion thereof so that water does not flow into the leg 16.

The above-described fixing plate 201 is fixed to the fastening plate 15a by bolts (reference numerals not shown, FIGS. 5 and 9 ) fastened to pass through the fastening plate 15a provided in the aforementioned rotary shaft 15.

The above-described fixing plate 201 may have an outer diameter slightly smaller than the inner diameter of the aforementioned rotary shaft 15 and may include a stopper 206a for limiting a rotation angle.

As shown in FIG. 7 , the aforementioned stopper 206a may be formed to be spaced apart from the outer periphery of the aforementioned sleeve 206, and may be configured as a hooking piece 201a on the outer diameter of the fixing plate 201.

By this configuration, even if the fixing plate 201 is rotated together with the connecting member 14, the stopper 206a is rotated only to the position of the locking piece 206a, so that the rotating shaft 15 and the fixing plate 201 cannot rotate any more. do.

The above-mentioned both blocks 210 and 220 accommodate the above-mentioned shaft 201b passing therethrough, and the spiral inclined surfaces 210a and 220a disposed in the axial direction on the surface where the above-mentioned both blocks 210 and 220 come into contact with each other. ) is provided so that it is symmetrical.

The above-described movable block 210 has a protrusion 211 (FIG. 8A) disposed in the long hole 206b (FIG. 6) of the sleeve 206 (FIG. 5, FIG. 6) to be described later on its outer surface, and the shaft 201b Corresponding to the rotational movement, it can move up/down in the axial direction of the sleeve 206 described above.

The aforementioned fixing block 220 is rotatably fixed to the shaft 201b within the aforementioned sleeve 206.

In FIG. 8 , reference numeral 224 is a screw hole for fastening a bolt to fix the fixing block 220 to the outer diameter of the above-described shaft 201b.

The above-described pressing means is a term encompassing means for pressing the above-described movable block 210 toward the fixed block 220, and the pressing means is a compression spring 202 as shown in FIGS. 5, 6, and 9 can be

One end of the compression spring 202 is supported by the fixed plate 201, and the other end is coupled to the outer circumferential surface of the shaft 201b so as to be supported by the movable block 210.

Accordingly, the movable block 210 is pressed toward the fixed block 220 by the elasticity of the compression spring 202 acting in the axial direction.

Due to the compressive force inherent in both blocks 210 and 220, the inclined surface of the movable block 210 has energy to slide along the inclined surface of the fixed block 220.

The sleeve 206 described above has a cylindrical shape having an outer diameter similar to that of the aforementioned fixing plate 201, and has a long hole 206b (FIG. 6) in which the aforementioned protrusion 211 (FIG. 9) is located in a symmetrical outer diameter. This is provided.

The above-described second elastic means encompasses means for providing elasticity acting in the circumferential direction of the above-described shaft 201b, and a spring 205a in the form of a spring may be preferred as a preferred application example.

One end of the aforementioned spring spring 205a is coupled to the slot 201c (FIG. 6, FIG. 6) of the aforementioned shaft 201b, and the other end is secured to the inner diameter of the sleeve 206 by bolts (reference numerals not indicated). ) is fixed in the spring spring case 205.

Therefore, the above-described shaft 201b may have elasticity inherent in the spring 205a to be returned to its original position in the circumferential direction with respect to the leg 16.

Preferably, the aforementioned slot 201c is provided at a height high enough not to be separated from the spring spring 205a by the ascending and descending movement of the shaft 201b.

For reference, the above-described spring spring case 205 is fixed to the outer surface of the sleeve 206 with bolts (reference numerals not indicated, FIGS. 5, 6, and 9), and the sleeve 206 is attached to the leg 16 It is fixed in the leg 16 by bolts (reference numerals not shown) fastened to the outer surface of the.

Therefore, when the chair 20 is withdrawn, the rotation shaft 15, the shaft 201b, and the fixing block 220 are rotated through the connection member 14, and the movable block 210 interlocks with them. It can move along the long hole 206b in a state of being pressed toward the fixing block 220 by its inherent elasticity.

On the other hand, for the smooth rotation of the shaft 201b and the rotating shaft 15 described above, the radial bearing 204 and the thrust bearing 203, FIGS. 5, 6, and 9 are connected to the outer diameter of the shaft 201b and the sleeve 206 ) can be further coupled between the inner diameter of.

As shown in FIGS. 5, 6 and 9, the aforementioned radial bearing (204) is between the fixed plate 201 and the compression spring 202 and between the compression spring 202 and the movable block 210. It may be coupled to the outer diameter of the shaft (201b) to be positioned, respectively, and a thrust bearing (203) may be coupled between the compression spring (202) and the movable block (210).

The outer diameter of both bearings 203 and 204 described above is similar to the inner diameter of the sleeve 206.

In FIG. 6, unexplained reference numeral 203a denotes an anti-friction washer.

Hereinafter, a chair damping means according to the present invention will be described in detail with reference to the accompanying drawings.

The chair damping means defined in the present invention refers to a means for suppressing the storage speed of a chair that rotates around the rotational axis 15 when the chair is stored, and the chair damping means fixes the retracted position and the retracted position of the chair It may further include a chair fixing means that can be.

A preferred embodiment of the damping means described above may be applied to the movable block 210 and the fixed block 220 described above.

As an embodiment, a locking protrusion 212 may be further provided on one inclined surface 210a of the aforementioned two inclined surfaces, and a locking protrusion 221a accommodating the locking protrusion 212 may be provided on the other inclined surface 220a. Of course, you can install them opposite each other.

As shown in FIG. 10B, a plurality of the above-mentioned locking protrusions 221a may be formed at a predetermined interval on the above-mentioned inclined surface 220a, and the locking protrusion 212 is formed on the inclined surface 210a of the movable block 210. It is shown to be formed.

Therefore, when the chair 20 is stored or withdrawn, the protrusion 212 suppresses the rotational motion of the shaft 201b or temporarily prevents the rotational motion of the shaft 201b at the corresponding portion when passing through or positioned at one or more protrusions 221a. can be stopped

As an example of action, when a chair is pulled out for cleaning under the top plate, the locking protrusion 212 is caught on the locking jaw 221a so that the chair is not accommodated by the elasticity of the spring spring, and the fixed chair can be fixed as described above. When an external force sufficient to allow the locking protrusion 212 to escape from the locking jaw 221a is applied to the chair, the chair is rotated in the direction in which it is immediately stored due to the elasticity of the spring spring.

At this time, before the chair 20 is completely accommodated under the top plate 11, that is, before the chair is properly positioned at the position set by the manufacturer, the above-mentioned protrusion 212 is placed on both blocks so that the protrusion 212 is caught on the protrusion 221a. By applying each to the inclined surface, the rotational motion can be suppressed or stopped at the position where the locking jaw 221a is provided.

Therefore, by appropriately applying the position and number of the locking protrusions 212 and the locking protrusions 221a provided on the inclined surfaces of both blocks and the space between them, the storage position of the chair and the backrest can be changed when each chair is stored or stored. It is possible to align them side by side on the same line, and it is also possible to temporarily fix the pulled out chair at a specific angle.

On the other hand, in order to limit the rotational angle of the movable block so that the uppermost points of the aforementioned two inclined surfaces do not deviate from each other, as shown in FIG. ) may be provided in either one of the two blocks.

In this way, the stopper 222 of the fixing block 220 that rotates together with the aforementioned shaft is caught on the movable block 210 so that it cannot rotate any more.

Summarizing the present invention described above, in the chair 20 according to the present invention, the seat 21 can be raised and lowered by the chair back automatic aligning device 100, and the backrest 22 rotates to its original position ( return), the storage and withdrawal operations can be implemented by the rotational motion of the automatic chair storage device 200 described above, and the storage (rotation) speed of the chair can be buffered and suppressed by the chair damping means. Each chair and backrest can be automatically aligned at a position determined by the position of the chair according to the storage or withdrawal operation.

Therefore, in the table according to the present invention, when the chair is stored, the chair back is not damaged by colliding with the table, and since the rotational speed according to the storage of the chair is buffered, there is no safety accident caused by collision with the body, and the chair It is also possible to solve the problem that the space between the backrest and the top plate is narrowed when the body is pulled out, making it inconvenient for the body to enter and exit.

In the above, preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but those skilled in the art to which the present invention belongs can implement various applications or modifications based on the present invention , It is to be noted in advance that these applications or modifications are included in the true meaning of the technical spirit and claims intended by the present inventors.

Claims (3)

In the chair-integrated table,
a fixed plate 201 having a shaft 210b fixed in the rotational shaft 15 connected to the connecting member 14;
a sleeve 206 having a pair of long holes 206b disposed in the axial direction on both symmetrical outer walls and fixed in the leg 16;
A movable block 210 having a protrusion 211 located in the long hole 206b and a helical inclined surface 210a disposed in the axial direction of the sleeve 206 and movably coupled in the axial direction of the shaft 210b. )class;
a fixing block 220 having a helical inclined surface 220a provided symmetrically on a surface opposite to the inclined surface 210a of the movable block 210 and fixed within the sleeve 206;
a second elastic means coupled to the sleeve 206 and providing elasticity in a circumferential direction to the shaft 210b penetrating the fixing block 220;
a pressing means for pressing the movable block 210 toward the fixed block 220;
a leg 16 in which the sleeve 206 is fixedly built in and coupled to the upper plate support 12;
A chair damping device for a chair-integrated table, characterized in that it comprises a damping means for temporarily suppressing the rotational speed of the connecting member when the chair is stored and temporarily fixing the chair that has been withdrawn when the chair is withdrawn.
According to claim 1,
The damping unit is a chair damping device for a chair-integrated table, characterized in that a locking protrusion and a locking jaw are formed to face both inclined surfaces of the movable block 210 and the fixed block 220.
According to any one of claims 1 or 2,
A chair damping device for a chair integrated table, characterized in that a stopper 222 is further provided on the uppermost inclined surface of any one of the two blocks 210 and 220.

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