CN111772400A

CN111772400A - Chair (Ref. now to FIGS)

Info

Publication number: CN111772400A
Application number: CN202010742046.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Yudou Shanghai Intelligent Technology Co ltd
Current assignee: Yudou Shanghai Intelligent Technology Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2020-10-16

Abstract

The invention discloses a seat, comprising: a stool part, a backrest and star-shaped legs; the stool part is supported on the supporting legs through the upright posts; the bench portion includes arranged in bench casing: the retainer, the spring cushion block arranged on the retainer and the mechanism frame which collects and clamps the spring cushion block with the retainer and enables the retainer to be connected to the upright post; the retainer is provided with an installation area for placing the spring cushion block; the elastic cushion block can be restored to deform in the stress direction along with the bearing force borne by the retainer in the mounting area; the mechanism frame includes: a backrest fixing part extending towards the rear side of the stool part and used for fixing a backrest; the backrest fixing part is detachably assembled with the backrest; the backrest performs the forward and backward adjustment of the lumbar support in the leaning direction through the feeding assembly; the star-shaped legs are formed by bending and stretching a whole plate; the star-shaped and upright posts comprise star point paint surface layers.

Description

Chair (Ref. now to FIGS)

Technical Field

The invention relates to the technical field of seats, in particular to a seat capable of being adjusted in a self-adaptive mode.

Background

An office and study chair is a piece of daily life furniture, in particular to a piece of seating furniture with a backrest, a seat and armrests. At present, most office and study chairs generally comprise a lifting mechanism in a structure, and the structures are usually directly exposed, so that the appearance is influenced, dust is easily accumulated, and the office and study chairs are difficult to clean. Under normal conditions, the chair only has the functions of ascending and descending up and down and the function of adjusting the forward and backward inclination angle, and the front and the back of the chair do not have the fine adjustment function of slightly changing according to the sitting posture. The user does not have good buffering when sitting down, resulting in poor sitting feeling.

In order to solve the problems, the office chairs adopt the seat cushions with the memory function for increasing the comfort of the seat, and although some experience feelings can be improved, the seat cushions are mostly airtight, and discomfort can be caused by long-time sitting and pressing. Therefore, in order to provide a chair with an orientation fine-tuning capability that can be finely varied according to sitting postures, a simple and feasible structure is needed to solve the problem.

Disclosure of Invention

The technical scheme provided by the invention is that the seat comprises: a stool part, a backrest and star-shaped legs.

The stool part is supported on the star-shaped legs through the upright posts, extends upwards from two sides of the stool part to be connected with the armrests, and extends upwards from the rear side of the stool part to be connected with the backrest.

The stool part can be divided into a plurality of units with independent functions, and specifically comprises a retainer, an elastic cushion, a mechanical framework, an upper shell and a lower shell.

The main body of the retainer is a disk-shaped body, the disk-shaped body is a rotary structure with gentle taper, and the disk-shaped body has a streamline surface structure. The outer surface of the retainer is provided with a lower shell, and the lower shell has the effect of decorating the appearance. The interior of the disk-shaped body is arranged as a cavity, and the center of the cavity is a hole formed along the axial direction. The hole is used for inserting and sleeving the stand column, the upper end of the stand column is matched with the stand column and fixedly connected with the mechanism frame, and the lower end of the stand column is a supporting leg.

Meanwhile, a plurality of elastic cushion blocks are arranged on the disc-shaped body, the elastic cushion blocks are cylindrical bodies, and the elastic cushion blocks are vertically arranged to bear the weight and the seat pressure of a user. If the spring cushion block is high in cost or other technical reasons, the spring cushion block can be replaced by a spring, and the effect of the spring and the spring cushion block is the same. Generally, the elastic cushion block is made of elastic materials, an installation area for placing the elastic cushion block is arranged on the disc-shaped body, and the elastic cushion block can be restored to deform in the stress direction along with the bearing force borne by the stool in the installation area. Based on the function of the elastic cushion block, the elastic cushion block is made of organic high polymer materials, and the elastic cushion block also needs to have wear-resisting and durable capabilities while having elastic deformation.

Specifically, a plurality of mounting areas are respectively arranged on two sides of the upper hole of the disc-shaped body, an upward protruding columnar bulge is arranged at the center of each mounting area, and the elastic cushion block is also provided with a center hole, so that the elastic cushion block can be positioned and mounted through the center hole and the columnar bulge.

The bullet cushion is a plurality of series connection processing bullet cushion group in order to increase fixed stability. Specifically, a plurality of bullet cushion blocks form through the splice bar series connection of bullet cushion root, can increase every stability, the installation of being convenient for moreover. The connecting ribs are provided with riveting holes, and each elastic cushion block group is arranged on the disk-shaped body through a fastener matched in the riveting hole. The elastic pad can be placed on the columnar protrusion without screws, and is fixed by the folding clamp passing through the upper and lower frame bodies.

Between the bullet pad group of both sides and the branch row in the both sides in hole, arranged two supporting parts, the supporting part is protruding upwards along the direction of support of sitting bench portion, and the supporting part is the triangle and stabilizes the form, has seted up two axial shaft holes at the center of supporting part. The shaft hole is arranged between the elastic cushion groups on the two sides, and the shaft hole is optimally arranged in the middle of the elastic cushion groups on the two sides, so that the stress direction of the elastic cushion blocks can be ensured to deviate by taking the shaft hole as a rotation center.

A mechanism frame is supported on the elastic cushion block and used for bearing the cushion and a user. The elastic cushion blocks are clamped by the mechanical frame and the retainer, fine adjustment is generated on the elastic cushion blocks due to deformation, and the mechanical frame at the position of the elastic cushion blocks on the two sides rotates by taking the shaft hole as a fulcrum. Therefore, the mechanism frame needs to be movably connected with the end part of the upright post matched in the hole. Specifically, the end of the upright post assembled in the hole is connected with the mechanism frame through a pin shaft assembly transversely inserted on the supporting part in a pin insertion mode.

The pin shaft assembly comprises a T-shaped shaft, an oil-containing shaft sleeve and a clamp spring, the oil-containing shaft sleeve is sleeved on the T-shaped shaft and matched in the shaft hole, and the front end of the T-shaped shaft is inserted into a fixed end on the mechanism frame and clamped through the clamp spring. The framework comprises two fixed ends, and therefore each fixed end is matched and installed with the corresponding supporting part through a group of pin shaft assemblies. Therefore, after the upper end of the upright post is connected with the mechanism frame, the supporting effect can be achieved, the fulcrum effect can be achieved, and stable fulcrum connection is provided for fine adjustment of the stool. And the structure is more reasonable than the common structure, the connection is not complicated, and the disassembly and the maintenance are more convenient.

Preferably, in order to increase the structural strength and the load-bearing capacity, structural reinforcing ribs are arranged between the holes and the mounting areas of the spring washer blocks, and structural reinforcing ribs are also arranged between the holes and the supporting parts.

Preferably, the elastic cushion blocks are uniformly distributed in an arc-shaped track, so that the elastic cushion block has a better bearing effect. Including the recess on the top face of bullet cushion, arranged the arc arch simultaneously on the bottom surface of framework, the recess of a plurality of bullet pads is discontinuous arc groove, and the protruding cooperation recess location of arc of framework bottom and pressfitting.

The simultaneous framework further comprises: the armrest fixing part extends towards the two sides of the sitting stool part and is used for fixing the armrest, and the backrest fixing part extends towards the rear side of the sitting stool part and is used for fixing the backrest.

A plurality of connecting holes are arranged on the backrest fixing part, and the backrest is detachably connected and installed with the backrest fixing part through fasteners. The backrest is bent upwards to form a back support, and the backrest has certain hardness, so that the backrest can be inclined and tilted and can also have the back support effect.

A lumbar support is arranged at the upper end of the backrest, and the lumbar support is arranged on the backrest through a feeding assembly. The waist rest of the feeding assembly can move back and forth in the leaning direction to achieve the fine adjustment effect.

The feeding assembly comprises a gasket, a spring gasket, an aluminum piece, a stud and a bolt pad.

The aluminum member is a cylindrical member including a cylindrical snap end for mounting on the backrest. The chair is installed with the backrest through the columnar clamping end, the aim of waist rotation can be achieved due to the clamping of the columnar body, and interestingness can be increased when the chair is used as a child chair.

The axial of aluminium part is equipped with the screw hole that is used for assembling the double-screw bolt, and the screw hole is coaxial with column joint end, generally assembles longer double-screw bolt in the screw hole. The front end of the stud is fixed to the shell of the lumbar support after assembling a gasket, a spring gasket and a bolt gasket, so that the feed adjustment in the leaning direction can be realized by rotating the lumbar support.

Specifically, the gasket and the elastic gasket are overlapped and then fixed on the back of the waist rest, one end of the stud presses the elastic gasket through the bolt pad overlapped on the elastic gasket, the bolt end is fixedly connected to the back of the waist rest, and the other end of the stud is assembled in the threaded hole.

The bullet gasket includes: the bolt pad is overlapped on the axial convex surface of the elastic gasket.

The spring washer includes an axial through hole and includes a boss on an inner wall of the through hole for defining an installation. And a notch matched with the boss is arranged in the shaft hole of the gasket and is used for corresponding installation and positioning locking.

The bolt pad comprises an axial square hole, and the stud comprises a square column part protruding from the center of the end face of the shaft. After the end part of the stud is fixed with the shell of the waist rest, the root part of the square column part supports against the bolt pad, so that the gasket and the elastic gasket are tightened, and the deformation of the elastic gasket generates rotary deformation taking the through hole of the elastic gasket as the center.

Screw holes are uniformly distributed on the gasket, the elastic gasket and the bolt pad, and the gasket, the elastic gasket and the bolt pad are arranged on the central position of the waist rest by connecting, fixing and feeding components.

Preferably, the elastic pad is a rubber elastic pad which is not easy to age and the deformation amount of the elastic pad can be adjusted according to the thickness.

The star-shaped legs are formed by bending and stretching a whole plate, and the supporting legs of the structure are high in stability, long in service life, novel and attractive. Generally, a layer of star point paint surface is sprayed on the metal surfaces of star-shaped legs, upright columns and the like, the raw materials of the paint surface material are uniformly dispersed by a mechanical dispersion process, and the paint is prepared into powdery paint with required particle size. Solves the problems of poor painting effect, uneven miscellaneous points and the like.

Specifically, the star paint comprises the following main components: 70-80% of polyester resin, 5-8% of curing agent, 3-5% of auxiliary agent, 10-22% of pigment and 3-10% of filler.

The spraying colors are two, one is dark color miscellaneous spots, and the other is light color miscellaneous spots.

The main components of the dark color miscellaneous point spraying are 70-80% of polyester resin, 5-8% of curing agent, 3-5% of auxiliary agent, 12-22% of pigment and 3-7% of filler.

The light-color miscellaneous-point spraying coating mainly comprises 70-80% of polyester resin, 5-8% of curing agent, 3-5% of auxiliary agent, 10-20% of pigment and 5-10% of filler.

The paint surface material does not generate chemical reaction in the production process, and does not generate volatile substances; during coating construction and during powder curing, no organic volatile matter is generated, and the paint belongs to green environment-friendly paint.

The invention has the advantages that:

1. the stool of this structure seat possesses the function of elasticity fine setting, if add better elastic cushion, its angle around can effectively adjusting the seat, sits to feel more comfortable, and the position of sitting degree of freedom is bigger.

2. The backrest is provided with feed adjustment, meanwhile, the elastic fine adjustment of the backrest is achieved by matching with the elastic cushion seat, and the backrest can rotate, so that the interestingness of the child chair is increased.

3. The paint surface is beautiful and elegant, and no organic volatile matter is generated in the coating construction and powder curing process, thus the paint belongs to green environment-friendly paint.

4. The cooperation between the structure is nimble, and the intensity between the adapting unit is better, and each subassembly is easily produced, and the assembly is quick, can improve the productivity of product, reduces the defective percentage.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a perspective view of a seat;

FIG. 2 is an exploded view of the seat fine adjustment mechanism;

FIG. 3 is a schematic view of an office chair employing a chair fine adjustment mechanism;

FIG. 4 is an assembly view of the structure on the cage;

FIG. 5 is an exploded view of the structure on the cage;

FIG. 6 is a schematic structural view of a spring pad set;

FIG. 7 is a block diagram of the mechanism frame;

FIG. 8 is a top view of the seat fine adjustment mechanism; (ii) a

FIG. 9 is a schematic view of a feed assembly in cooperation;

FIG. 10 is a schematic view of another feed assembly

Wherein: 1. a stool part; 2. a backrest; 3. a handrail; 4. a column; 5. a waist support; 6. a feeding assembly; 11. a holder; 12. a spring pad; 13. a frame; 111. a disk-shaped body; 112. an aperture; 113. a support portion; 114. an installation area; 115. a columnar bulge; 116. structural reinforcing ribs; 117. a T-shaped shaft; 118. an oil-containing shaft sleeve; 119. a clamp spring; 121. connecting ribs; 122. a first connecting screw; 131. a fixed end; 132. a handrail fixing part; 133. a backrest fixing part; 134. a second connecting screw; 61. a gasket; 62. a spring washer; 63. a bolt pad; 64. a stud; 65. and (4) an aluminum piece.

Detailed Description

Example 1

The stool part 1 includes a holder 11, an elastic cushion block 12, and a mechanism frame 13.

The main body of the retainer 11 is a disk-shaped body 111 with a gentle taper, the interior of the disk-shaped body 111 is arranged as a cavity, and the center of the cavity is a hole 112 formed along the axial direction. The holes 112 allow the studs 4 to be inserted, the upper ends of the studs 4 fitting therein and being fixedly connected to the frame of the plate 111.

A plurality of mounting areas 114 are respectively disposed at both sides of the hole of the disk-shaped body 111, and a columnar protrusion 115 protruding upward is disposed at the center of the mounting areas 114. There is the bullet cushion block 12 of awl column, and bullet cushion block 12 has the centre bore, and bullet cushion block 12 can be through centre bore and column arch 115 location and installation.

In this embodiment, three mounting areas 114 are respectively disposed at the front side and the rear side of the hole 112, and each mounting area 114 corresponds to one spring cushion block 12. The elastic cushion blocks 12 on the same side are formed by connecting the connecting ribs 121 at the root parts of the elastic cushions in series, so that the stability of each elastic cushion block can be improved. The connecting ribs 121 are mounted on the disk-shaped body 111 by first connecting screws 122, and each connecting rib 121 corresponds to one first connecting screw 122. The elastic pad can also be placed on the columnar protrusion 115, is not fixed by screws, and is fixed by a folding clamp passing through the upper and lower frame bodies. Above two modes all need the bullet pad to be arc orbit evenly distributed, consequently have better bearing effect.

The left side and the right side of the hole 112 are respectively provided with a supporting part 113, the supporting parts 113 are in a triangular stable shape, and two axial holes in the transverse axial direction are arranged in the centers of the supporting parts 113.

The mounting areas 114 at the front and rear sides of the hole 112 and the supporting portions 113 at the left and right sides of the hole are symmetrical about the center of the hole. In order to increase the structural strength and load-bearing capacity, structural reinforcement ribs 116 are arranged between the holes 112 and the mounting region 114 of the spring washer block 12, and structural reinforcement ribs 116 are also arranged between the holes 112 and the support portion 113.

The mechanism frame 13 presses on the elastic pad, the mechanism frame is used for bearing the cushion and a user, the mechanism frame 13 is used for installing the upper shell and the cushion, and the mechanism frame 13 is connected with the upper shell through a second connecting screw 134. The end of the column 4 fitted in the hole 112 of the holder 13 is end-pinned to the mechanism frame 13 by a pin assembly laterally inserted into the support portion 113. The pin shaft assembly comprises a T-shaped shaft 117, an oil-containing shaft sleeve 118 and a clamp spring 119, wherein the oil-containing shaft sleeve 118 is sleeved on the T-shaped shaft 117, the oil-containing shaft sleeve 118 is matched in a shaft hole, and the front end of the T-shaped shaft 117 is inserted into a fixed end 131 on the mechanism frame 13 and clamped through the clamp spring 119.

The mechanical frame 13 and the retainer 11 are used for clamping the elastic cushion blocks 12, and the elastic cushion blocks 12 are subjected to fine adjustment due to deformation, so that the mechanical frame 13 at the elastic cushion blocks 12 on two sides is subjected to micro-rotation adjustment by taking the shaft holes as fulcrums. The top end face of each elastic cushion block 12 comprises a groove, arc-shaped protrusions are arranged on the bottom face of the machine frame 13, the grooves of the elastic cushion blocks 12 are discontinuous arc-shaped grooves, and the arc-shaped protrusions at the bottom of the machine frame 13 are matched with the grooves for positioning and pressing.

Example 2:

the framework 13 includes: an armrest fixing part 132 and a backrest fixing part 133. The armrest fixing part 132 is provided with an armrest by means of a fastener, the backrest fixing part 133 is provided with a plurality of coupling holes,

the backrest 2 is detachably connected and mounted with the backrest fixing part by a fastener.

The upper end of the backrest 2 is provided with the waist support 5, the waist support 5 is arranged on the backrest through the feeding assembly 1 in the central position, and the waist support sponge is a shaped sponge and is more comfortable than common sponge.

The feeding assembly 1 comprises an aluminium member 15, a stud 14, a bolt pad 13.

The pad 11 and the elastic pad 12 are overlapped and fixed on the back of the waist rest 5, the elastic pad 12 is generally made of rubber elastic pad, and the fine adjustment can be carried out according to the comfortable sitting posture of the individual when the user sits down.

The aluminium member 15 is a cylindrical element comprising a cylindrical attachment end for mounting on the backrest 2. The installation is carried out through column connection end and back 2, can play the rotatory purpose of lumbar support 5 because of the joint of the column-shaped body, can increase the interest when as children's seat.

The bullet pad 12 includes: the end face contacting the washer 11, the axial convex face contacting the bolt pad 13, and the axial convex face of the bolt pad 13 overlapped on the elastic washer 12.

The aluminum piece 15 is provided with a threaded hole for assembling the stud in the axial direction, the threaded hole is coaxial with the columnar connecting end, and the longer stud 14 is generally assembled in the threaded hole. The front end of the stud 14 is fixed to the housing of the lumbar support 5 after fitting the washer 11, the spring washer 12, the bolt washer 13, and therefore, feed adjustment in the reclining direction can be achieved by rotating the lumbar support.

One end of a stud 14 presses the elastic pad 12 through a bolt pad 13 overlapped on the elastic pad 12 and the bolt end is fixed to the back of the lumbar support 5, and the other end of the stud 14 is fitted into the threaded hole.

The bolt pad 13 includes a square hole in the axial direction, and the stud includes a square column portion protruding from the center of the end face of the shaft. After the end part of the stud is fixed with the shell of the waist rest 5, the root part of the square column part supports against the bolt pad 13, so that the gasket 11 and the elastic gasket 12 are tightened, and the rotation deformation taking the through hole as the center is generated according to the deformation of the elastic gasket 12 to achieve the self-adaptive fine adjustment effect.

Or adopt another kind of back of the chair to feed and fine-tune the mechanism, namely:

One end of a stud 14 is clamped on the bolt pad 13, the bolt pad 13 is fastened on the back of the waist rest 5, and the other end of the stud 14 is assembled in a threaded hole of the aluminum piece 15 after being sleeved with a large iron gasket 16. The rear end of the aluminum member 15 is a columnar connection end, and a middle iron shim 17, a POM damping member 18, a rubber shim 19, a middle iron shim 17, and a small iron shim 21 are laminated in this order on this end. The set of components is finally fixed on the rear end of the aluminum piece through a screw 21, so that the POM and the aluminum piece are ensured to be coaxial, the resistance of the rotating position is slightly increased, and the damage or accident caused by the over-fast rotation of the waist rest is avoided. At the same time, the POM damping element can also provide a weak deformation, so that a fine adjustment in the leaning direction is achieved.

Example 3:

the stool part is supported on the star-shaped legs through the upright posts, and the star-shaped legs are provided with universal wheels. The star-shaped legs are formed by bending and stretching a whole plate, and are integrally formed, so that the whole star-shaped legs have good bearing capacity and attractive appearance.

The star-shaped and upright posts comprise star point paint surface layers, and the spraying colors comprise two colors, one is dark color miscellaneous points, and the other is light color miscellaneous points.

The embodiments are merely illustrative of the principles and effects of the present invention, and do not limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed herein be covered by the appended claims.

Claims

1. A seat, comprising: a stool part, a backrest and star-shaped legs; the stool part is supported on the supporting legs through the upright posts; the method is characterized in that: the bench portion comprises a bench shell arranged inside: the retainer, the spring cushion block arranged on the retainer and the mechanism frame which collects and clamps the spring cushion block with the retainer and enables the retainer to be connected to the upright post;

the retainer is provided with an installation area for placing the spring cushion block; the elastic cushion block can be restored to deform in the stress direction along with the bearing force borne by the retainer in the mounting area;

the mechanism frame includes: a backrest fixing part extending towards the rear side of the stool part and used for fixing a backrest; the backrest fixing part is detachably assembled with the backrest; the backrest performs the forward and backward adjustment of the lumbar support in the leaning direction through the feeding assembly;

the star-shaped legs are formed by bending and stretching a whole plate; the star-shaped and upright posts comprise star point paint surface layers.

2. The seat according to claim 1, wherein: the retainer comprises a disc-shaped body and a hole which is arranged on the disc-shaped body and used for inserting and sleeving the upright post; the disc-shaped body is provided with the mounting area; and columnar bulges sleeved on the elastic cushion blocks in the mounting areas in an inserting manner are arranged in the mounting areas.

3. The seat according to claim 2, wherein: the disc-shaped body comprises a supporting part which is upwards protruded along the supporting direction; the support parts are arranged on both sides of the hole; the end part of the upright post assembled in the hole is in pin-socket connection with the end part of the machine frame through a pin shaft component which is transversely inserted on the supporting part.

4. The seat according to claim 3, wherein: the elastic cushion blocks are arranged on two axial sides of the pin shaft assembly.

5. The seat according to claim 2, wherein: both sides of the hole are uniformly provided with: and a plurality of elastic cushion blocks are connected in series through connecting ribs at the roots of the elastic cushion blocks to form an elastic cushion block group.

6. The seat according to claim 3, wherein: the pin shaft assembly comprises a T-shaped shaft, an oil-containing shaft sleeve and a clamp spring.

7. The seat according to claim 3, wherein: the mechanism frame comprises a connecting body for bearing a cushion, and the connecting body comprises a fixed end which corresponds to the hole and is used for butting the upright post; the connector comprises a convex part supported on the spring cushion block.

8. The seat according to claim 3, wherein: the connecting body comprises a backrest fixing part and armrest fixing parts which extend towards the two sides of the sitting stool part and are used for fixing the armrests.

9. The seat according to claim 1, wherein: the feeding assembly comprises a gasket, an elastic gasket, an aluminum piece and a stud; the aluminum piece comprises a columnar clamping end which is used for being installed on the backrest; a threaded hole for assembling the stud is formed in the axial direction of the aluminum piece; the pad and the elastic pad are overlapped and then fixed on the back of the waist rest; one end of the stud is pressed against the elastic gasket through the bolt pad overlapped on the elastic pad, the bolt end is fixedly connected to the back surface of the waist rest, and the other end of the stud is assembled in the threaded hole.

10. The seat according to claim 9, wherein: the bullet pad includes: the end face is in contact with the gasket, and the axial convex face is in contact with the bolt pad; the elastic gasket comprises an axial through hole, and a bulge part for limiting installation is arranged on the inner wall of the through hole; the bolt pad is overlapped on the axial convex surface of the elastic gasket.

11. The seat according to claim 9, wherein: the feeding assembly is mounted on the central position of the waist support.

12. The seat according to claim 1, wherein: the star point paint surface layer comprises the following components: 70-80% of polyester resin, 5-8% of curing agent, 3-5% of auxiliary agent, 10-22% of pigment and 3-10% of filler.

13. The seat according to claim 12, wherein: the curing agent is solid particulate TGIC.

14. The seat according to claim 12, wherein: the auxiliary agent comprises solid powder: leveling agent and degassing agent.

15. The seat according to claim 12, wherein: the filler comprises solid powdered barium sulfate.