CN210810081U - Chair with detachable seat - Google Patents

Abstract

The utility model relates to a seat field especially relates to a seat that the back of the chair can wrench movement. A chair comprises a chair seat and a chair back arranged at the rear side of the chair seat; the chair back comprises a chair back support connected with the chair seat and a chair back body connected to the front end face of the chair back support through a plurality of elastic bodies; the elastic bodies are located on the same longitudinal straight line of the chair back body, and the deformation capacity of the elastic bodies in the radial direction is larger than that of the elastic bodies in the axial direction. Compared with the traditional seat, the seat back body of the seat can swing along with the twisting of the back of a human body, so that the use comfort of the product is improved; compared with the prior patent technology in the background art, the product greatly simplifies the structure, reduces the cost, ensures the structural stability and is not easy to damage.

Description

Chair with detachable seat

Technical Field

The utility model relates to a seat field especially relates to a seat that the back of the chair can wrench movement.

Background

The seat is one of furniture varieties and is a seat with a long history. With the development of industrial technology, the chair is not only greatly improved in the aspects of attractive appearance and use comfort, but also greatly changed in the production mode. Modern chairs are mainly produced in a modular manner, so that the living efficiency of the chair is greatly improved, and the chair generally comprises a base, a chair seat and a chair back, wherein the chair back is used for supporting the back of a user. The traditional chair back generally comprises a fixed type and an adjustable angle type, wherein the adjustable angle type means that the tilting angle of the chair back can be adjusted so as to provide different support angles corresponding to different riding requirements; the adjustable angle seat back is also fixed during a particular ride, otherwise it does not provide effective support. However, maintaining the same seating position for a long period of time can be tiring and the seat back of such seats can no longer be seated with fine adjustment of the swing.

The chinese utility model patent document with publication number "CN 208403797U" discloses a chair back, which comprises a bracket with a lower end connected to a chair seat, and a chair back frame connected to an upper end of the bracket; the chair back frame body can swing left and right by taking the upper end part of the bracket as an axis, and the swing path and amplitude of the chair back frame body are limited; the chair back frame body is subjected to reset elasticity enabling the chair back frame body to reset to a swing position in the swinging process. The chair back can swing along with the twisting of the back of a human body, and the use comfort of the product is improved. However, in the above-mentioned prior art, in order to realize that the chair back twists with the back of the human body, a very complicated chair back structure is adopted, and referring to fig. 2 and 3 thereof, a bracket shaft hole at a central position and a plurality of bracket arc-shaped grooves arranged by taking the bracket shaft hole as a circle center are required to be arranged on the upper end surface of the bracket; the chair back frame body is provided with a rotating shaft and a plurality of elastic rod bodies; the rotating shaft penetrates through the shaft hole of the support, and the lower end part of the elastic rod body is positioned in the arc-shaped groove of the support and fixed with the bottom surface of the arc-shaped groove of the support. Therefore, the seat back improves the use comfort; but it is complicated in structure, high in production cost and easy to be damaged in use.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a seat, compared with a conventional seat, a seat back body of the seat can swing along with the twisting of the back of a human body, so as to improve the comfort level of the product; compared with the prior patent technology in the background art, the product greatly simplifies the structure, reduces the cost, ensures the structural stability and is not easy to damage.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a chair comprises a chair seat and a chair back arranged at the rear side of the chair seat; the method is characterized in that: the chair back comprises a chair back support connected with the chair seat and a chair back body connected to the front end face of the chair back support through a plurality of elastic bodies; the elastic bodies are located on the same longitudinal straight line of the chair back body, and the deformation capacity of the elastic bodies in the radial direction is larger than that of the elastic bodies in the axial direction.

The above technical scheme is adopted in the utility model, this technical scheme relates to a seat, and the back of the chair in this seat includes the back of the chair support that is connected with the seat support to and connect the back of the chair body on the terminal surface before the back of the chair support through a plurality of elastomers. Because a plurality of elastomers are positioned on the same longitudinal straight line of the chair back body, and the deformation capacity of the elastomers in the radial direction is larger than that of the elastomers in the axial direction. Therefore, the chair back body can swing in the left and right directions relative to the chair back bracket; and the chair back body is simultaneously restrained by a plurality of elastic bodies in the up-down direction, so that the swinging can not be realized, and the tilting risk caused by the up-down swinging of the chair back body is avoided. When the chair is used, the back of a user is attached to the chair back body and can swing along with the twisting of the back of a human body, so that the chair back can be attached to the back of the human body all the time; and receive the elasticity that resets that makes its return to the pendulum position at the swing in-process, so can make the seat back of the chair restrict to a certain extent, compare in the back of the chair of complete activity, can provide more effective supporting effect. Compared with the traditional seat, the seat back body of the seat can swing along with the twisting of the back of a human body, so that the use comfort of the product is improved; compared with the prior patent technology in the background art, the product greatly simplifies the structure, reduces the cost, ensures the structural stability and is not easy to damage.

Preferably, the seat back body can swing left and right around a straight line where the plurality of elastic bodies are located; the chair back support limits the left-right swinging range of the chair back body. In the technical scheme, the limit of the left-right swinging range of the chair back body by the chair back support means that when the chair back body swings left and right to a certain angle, the chair back support is abutted against the chair back support, so that the chair back support cannot continuously swing to a larger angle. This scheme is spacing through back of the chair support to the horizontal hunting angle of back of the chair body, and the standard seat uses, guarantees the stability of seat.

Preferably, the seat back body is in an arc-shaped bag back shape with an opening facing forward, and the plurality of elastic bodies are located on a middle line of the seat back body. In the technical scheme, the shape adopted by the chair back body is an arc-shaped bag back shape, the shape of the back of a human body can be well attached, and better use experience is generated by matching the twisting function.

Preferably, the device also comprises a base and a tilting tray arranged on the base; the chair seat and the chair back support are connected to the tilting tray and can swing back and forth along with the tilting tray. Among the above-mentioned technical scheme, adopt the tray of inclining to realize the back and forth swing of back of the chair and seat support for leisure uses.

Preferably, the edges of the two sides of the chair back body are provided with a first side wing and a second side wing, the first side wing is positioned on the two sides of the waist region of the chair back body, and the second side wing is positioned on the two sides of the shoulder region of the chair back body. The first side wing and the second side wing are arranged on the two side edges of the chair back body, so that the chair back body has a bag-back feeling and is more comfortable to sit.

Preferably, the seat back body includes a connecting portion for the elastic body connection, and a wing portion for abutting against a back of the seat occupant; the lower end of the connecting part is fixedly connected with the lower end of the side wing part, and the upper end of the connecting part is fixedly connected with the upper end of the side wing part through a U-shaped bending part.

Preferably, the upper end of the seat back bracket extends forward to form a headrest at the front side of the seat back body.

Preferably, the upper end of the seat back support is provided with a U-shaped bent portion, the U-shaped opening of the U-shaped bent portion faces downward, and the front U-shaped arm of the U-shaped bent portion constitutes the headrest. The headrest is used to support the head of an occupant.

Preferably, the lower end part of the chair back support is connected to the rear end part of the chair seat through an angle adjusting mechanism, and the chair back support can rotate relative to the chair seat along the angle adjusting mechanism. Among this technical scheme, the back of the chair that will twist combines with angle adjustment mechanism, when the back of the chair was adjusted to the position like 120 ~ 150, the person of taking leans on the back of the chair, and the back is supported by the back of the chair body, and the head is supported by the headrest to the back of the chair body can twist, so promoted use comfort greatly.

Preferably, the elastomer is an elastic rubber column.

To sum up, this seat's characterized in that:

1. the elastic bodies are longitudinally arranged at the seat back part and can be two or more, central axes are formed by a plurality of points and a line, the left side and the right side of the backrest are provided with bulges which are convenient for a body to drive the backrest to move when the body is twisted, and the elastic bodies are helpful for self-adaptive movement and homing restoration.

2. The U-shaped bending part arranged at the headrest part aims at being skillfully combined with the movable back through modeling, so that the body is beautiful, the structural space and the application of the connecting central shaft are beneficial to the back movement.

3. The aim of adopting a double-layer design is not to change the beautiful shape of the chair and increase the functional requirement of comfort.

Drawings

Fig. 1 is an external view of a seat in embodiment 1.

Fig. 2 is a schematic structural view of a seat (without a base) in embodiment 1.

Fig. 3 is a schematic structural view of the elastic member in embodiment 1.

Fig. 4 is a schematic view of a seat frame in embodiment 2.

Fig. 5 is a schematic structural view of the angle adjustment mechanism.

Fig. 6 is a schematic diagram of the angle adjustment mechanism.

Fig. 7 is a schematic view of a seat frame in embodiment 3.

Fig. 8 is a schematic view of a frame of a seatback body according to embodiment 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1:

fig. 1 to 3 show a chair, which includes a base 1, a tilting tray 2 disposed on the base 1, a seat 3 disposed on the tilting tray 2, and a backrest disposed behind the seat 3. The base 1 can be a five-claw base as shown in the figure, and can move by matching with a roller; a base 1 that is stationary may also be used. The back of the chair include back of the chair support 41 and back of the chair body 42, seat support 3 and back of the chair support 41 are connected on the tray 2 of inclining upward to can follow the tray 2 swing back and forth that inclines upward adopts the tray 2 of inclining upward to realize the back and forth swing of back of the chair and seat support 3 for leisure uses.

The backrest support 41 is connected with the seat 3 through the tilting tray 2, and the backrest body 42 is connected with the front end surface of the backrest support 41 through a plurality of elastic bodies 5. Specifically, the plurality of elastic bodies 5 are located on the same longitudinal straight line of the seat back body 42, and as shown in the figure, there are two elastic bodies 5; of course, one skilled in the art can select more than two elastic bodies 5 as desired. The elastic body 5 can be an elastic rubber part, an elastic pressure spring or a spring piece, and the elastic pressure spring can be a cylindrical pressure spring or a conical pressure spring. When the deformation capacity of the elastic body 5 in the radial direction is larger than the deformation capacity of the elastic body in the axial direction, that is, the effect of the elastic body 5 in the radial twisting is larger than the effect of the axial compression, the elastic body 5 can be specifically selected as an elastic rubber column. In the above solution, the backrest of the chair includes a backrest support 41 connected to the seat 3, and a backrest body 42 connected to a front end surface of the backrest support 41 through a plurality of elastic bodies 5. Since the plurality of elastic bodies 5 are located on the same longitudinal straight line of the seat back body 42, the deformation capacity of the elastic body 5 in the radial direction is larger than that in the axial direction. Therefore, the seatback body 42 can swing in the left-right direction with respect to the seatback bracket 41; and the upper and lower directions are simultaneously restricted by the elastic bodies 5, so that the swinging can not be realized, and the tilting risk caused by the up-and-down swinging of the chair back body 42 is avoided. When in use, the back of a user is attached to the chair back body 42 and can swing along with the twisting of the back of a human body, so that the chair back can be always attached to the back of the human body; and receive the elasticity that resets that makes its return to the pendulum position at the swing in-process, so can make the seat back of the chair restrict to a certain extent, compare in the back of the chair of complete activity, can provide more effective supporting effect. Compared with the traditional seat, the seat back body 42 of the seat can swing along with the twisting of the back of a human body, so that the use comfort of the product is improved; compared with the prior patent technology in the background art, the product greatly simplifies the structure, reduces the cost, ensures the structural stability and is not easy to damage. The pivot position referred to herein is a position where the seat back front end surface is forward and no pivot angle is generated, and the seat back frame is not subjected to return spring force.

In the above-described aspect, the seatback body 42 can swing left and right around a straight line where the elastic bodies 5 are located. In addition, the seatback bracket 41 limits the horizontal swing range of the seatback body 42. In the technical scheme, the limit of the left-right swinging range of the chair back body by the chair back support means that when the chair back body swings left and right to a certain angle, the chair back support is abutted against the chair back support, so that the chair back support cannot continuously swing to a larger angle. This scheme is spacing through back of the chair support to the horizontal hunting angle of back of the chair body, and the standard seat uses, guarantees the stability of seat.

In a further preferred scheme, the chair back body 42 is in an arc-shaped bag back shape with an opening facing forward, and the elastic bodies 5 are positioned on a middle line of the chair back body 42. In this technical scheme, the shape that back of the chair body 42 adopted is an arc package back shape, can laminate human back shape well, cooperates the function of above-mentioned wrench movement, produces better use and experiences.

The tilting tray 2 can refer to a seat adjusting seat disclosed in the publication number "CN 206102125U", or a specific structure of a swinging device described in the publication number "CN 105853134A" of the chinese invention patent. Specifically, the tilting tray 2 comprises a lower base 21 arranged on the base 1, an upper base 22 fixedly connected with the seat 3, and an elastic component for connecting the upper base 22 and the lower base 21; the middle part of the upper base 22 is hinged on the lower base 21 through a rotating shaft; the elastic component is arranged at the front side of the rotating shaft, and the chair back bracket 41 is connected with the upper base 22 at the rear side of the rotating shaft through a link bracket 43. The elastic component comprises a limiting rod 23 connecting the upper base 22 and the lower base 21, a return spring 24 sleeved on the limiting rod 23, and a knob part 25 for adjusting the deformation degree of the return spring 24; the return spring 24 is located between the knob member 25 and the lower base 21. In the above technical solution, the lower base 21 is generally installed on the shaft lever (air lever) of the base 1, and the upper base 22 is connected to the lower end surface of the seat 3; the upper base 22 can rotate along the rotating shaft relative to the lower base 21, when a user acts on the seat 3 and the chair back, the upper base 22 rotates backwards relative to the lower base 21, and the seat 3 and the chair back generate a backward tilting effect; at this time, under the action of the return spring 24, the stopper rod 23 tensions the upper base 22 and provides a return force, and finally, the tilting and swinging functions are realized.

Under the action of the tilting tray 2, the end of the link frame 43 is hinged on the lower base 21, and the connection point of the upper base 22 and the link frame 43 is arranged at the rear side of the hinged point of the end of the link frame 43. According to the scheme, on the basis that the tilting tray 2 swings, the end part of the link frame 43 is hinged to the lower base 21, and the swing amplitude of the chair back is improved through a lever amplification effect generated by the connecting point of the upper base 22 and the link frame 43 and the hinged point of the end part of the link frame 43.

Example 2:

as shown in fig. 4, the present embodiment relates to a chair, which includes a seat 3 and a backrest disposed at the rear side of the seat 3. The present embodiment and the technical solution related to embodiment 1 belong to the same inventive concept. Specifically, the seat back body 42 is connected to the front end surface of the seat back bracket 41 through a plurality of elastic bodies 5, and the plurality of elastic bodies 5 are located on the same longitudinal straight line of the seat back body 42. The specific structure can refer to embodiment 1, and on the basis of the same inventive concept, the present embodiment is different from embodiment 1 in that: in this embodiment, the edges of the two sides of the chair back body are both provided with a first side wing 421 and a second side wing 422, the first side wing 421 is located on the two sides of the waist region of the chair back body, and the second side wing 422 is located on the two sides of the shoulder region of the chair back body. The two side edges of the chair back body are provided with the first side wing 421 and the second side wing 422, so that the chair back body has a bag-back feeling and is more comfortable to sit.

The upper end of the seat back bracket extends forward to form a headrest 423 at the front side of the seat back body. In the embodiment shown in the figures, the upper end of the backrest support is provided with a U-shaped bent part 424, the U-shaped opening of the U-shaped bent part 424 faces downwards, and the front side U-shaped arm of the U-shaped bent part 424 forms the headrest 423. The headrest 423 is used to support the head of an occupant.

In addition, the lower tip of back of the chair support passes through angle adjustment mechanism 6 to be connected on seat support 3 rear end, and the back of the chair support can follow angle adjustment mechanism rotates for seat support 3. Among this technical scheme, the back of the chair that will twist combines with angle adjustment mechanism, when the back of the chair was adjusted to the position like 120 ~ 150, the person of taking leans on the back of the chair, and the back is supported by the back of the chair body, and the head is supported by headrest 423 to the back of the chair body can twist, so promoted use comfort greatly.

The angle adjusting mechanism 6 may adopt various angle adjusting mechanisms used in the field, and the disclosure number is "CN 208624979U", the invention provides the angle adjusting mechanism 6 described in the patent text of the chinese utility model named "angle adjusting mechanism and electronic contest chair"; or the invention is a seat back angle adjusting mechanism recorded in the Chinese utility model patent document with the publication number of CN2618805Y and the name of seat back angle adjusting mechanism.

In the embodiment shown in fig. 5 and 6, the angle adjustment mechanism 6 comprises a bottom plate 61 fixed on the side of the seat 3, a rocker arm 62 hinged to the bottom plate 61, a torsion spring 63 providing a return force to the rocker arm 62, and a handle stop assembly limiting the rotation of the rocker arm 62. The center end of the torsion spring 63 is fixed on the hinge point of the rocker arm 62 and the chassis 61, and the movable end of the torsion spring 63 is connected to the rocker arm 62.

The rocker arm 62 is provided with an arc-shaped tooth block 64, and the arc-shaped tooth block 64 takes a hinge point of the rocker arm 62 and the chassis 61 as a circle center. The handle limiting assembly comprises a limiting plate 65 hinged to the chassis 61, a handle 66 driving the limiting plate 65 to swing along the hinged end of the handle, and a tension spring 67 driving the handle 66 to reset. The limiting plate 65 is provided with a tooth part which is matched with the arc-shaped tooth block 64 on the rocker arm 62. When the toothed part of the retainer plate 65 is engaged with the arc-shaped toothed block 64 of the rocker arm 62, the rocker arm 62 is locked in position. When the toothed part of the limit plate 65 is disengaged from the arc-shaped toothed block 64 of the rocker arm 62, the rocker arm 62 is movably arranged relative to the chassis 61. The handle 66 is provided at its inner end with a cleat assembly 68, one end of the cleat assembly 68 being hinged to the chassis 61, the handle 66 being able to rotate along this hinged end. The other end of the clamping plate assembly 68 is connected with the bottom plate 61 through a tension spring 67. The movable end of the limiting plate 65 is located between the two ends of the clamping plate assembly 68, and the clamping plate assembly 68 acts on the movable end of the limiting plate 65 to drive the limiting plate 65 to swing.

In the angle adjusting mechanism 6, the rocker arm 62 is hinged to the chassis 61, the arc-shaped tooth block 64 and the rocker arm 62 rotate concentrically and synchronously, a tooth part is arranged on a limit plate 65 in a limit component of the handle 66 and meshed with the arc-shaped tooth block 64, and a rider can adjust the limit plate 65 through the handle 66 so as to control whether to lock the arc-shaped tooth block 64 and the chair back. And the handle 66 can be reset mechanically through the arranged tension spring 67, so that the use of the rider is more convenient. The tilting mechanism provides resetting elasticity through the torsion spring 63, and the resetting flexibility of the chair back is better. And the chair back angle can be timely and effectively limited by the handle 66 limiting component.

Example 3:

the embodiment relates to a seat, and the technical scheme of the seat and the technical scheme of the embodiment 2 belong to the same invention concept. The difference from embodiment 1 is in the structure of the seatback body 42; as shown in fig. 7 and 8, the seat back body 42 includes a connecting portion 425 for the elastic body connection, and a wing portion 426 for abutting against the back of the occupant; the lower end of the connecting portion 425 is connected and fixed to the lower end of the wing portion 426, the upper end of the connecting portion 425 is connected and fixed to the upper end of the wing portion 426 by a U-shaped bent portion 424, and the wing portion 426 forms the first wing 421 and the second wing 422. The figure shows a skeleton schematic diagram of the seat, but the structure of the seat in the scheme is embodied, and the seat can be formed by adding a core body and a coating cloth on the skeleton with reference to the figure.

In addition, in this embodiment, as in embodiment 1, the seat 3 and the backrest support 41 are connected to the tilting tray 2, and can swing back and forth along with the tilting tray 2, and the tilting tray 2 is used to swing back and forth the backrest and the seat 3 for leisure use.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (10)

1. A chair comprises a chair seat (3) and a chair back arranged at the rear side of the chair seat (3); the method is characterized in that: the chair back comprises a chair back bracket (41) connected with the chair seat (3) and a chair back body (42) connected with the front end surface of the chair back bracket (41) through a plurality of elastic bodies (5); the elastic bodies (5) are positioned on the same longitudinal straight line of the chair back body (42).

2. A seat as claimed in claim 1, wherein: the chair back body (42) can swing left and right by taking a straight line where the elastic bodies are located as a center; the backrest bracket (41) limits the horizontal swing range of the backrest body (42).

3. A seat according to claim 2, wherein: the chair back body (42) is in an arc-shaped bag back shape with an opening facing the front, and the elastic bodies (5) are positioned on the middle line of the chair back body (42).

4. A seat according to claim 3, wherein: the device also comprises a base (1) and an inclining tray (2) arranged on the base (1); the chair seat (3) and the chair back support (41) are connected to the tilting tray (2) and can swing back and forth along with the tilting tray (2).

5. A seat as claimed in claim 1 or 2, wherein: both sides edge of back of the chair body (42) all is equipped with first flank (421) and second flank (422), and first flank (421) are in the regional both sides of waist of back of the chair body (42), and second flank (422) are in the regional both sides of shoulder of back of the chair body (42).

6. A seat according to claim 5, wherein: said seat back body (42) including a connection portion (425) for said elastomeric connection, and a side wing portion (426) for abutting a back of an occupant; the lower end of the connecting part (425) is fixedly connected with the lower end of the side wing part (426), and the upper end of the connecting part (425) is fixedly connected with the upper end of the side wing part (426) through a U-shaped bending part (424).

7. A seat as claimed in claim 1 or 2, wherein: the upper end part of the chair back bracket (41) extends forwards to form a headrest (423) positioned at the front side of the chair back body (42).

8. A seat according to claim 7, wherein: the upper end of back of the chair support (41) is equipped with U-shaped portion of bending (424), and the U-shaped opening of U-shaped portion of bending (424) is down, and the front side U-shaped arm of U-shaped portion of bending (424) constitutes headrest (423).

9. A seat as claimed in claim 1 or 2, wherein: the lower end of the chair back support (41) is connected to the rear end of the chair seat (3) through an angle adjusting mechanism (6), and the chair back support (41) can rotate relative to the chair seat (3) along the angle adjusting mechanism (6).

10. A seat as claimed in claim 1 or 2, wherein: the elastic body (5) is an elastic rubber column.

Images