CN223640407U - Ergonomic chair - Google Patents

Abstract

This application discloses an ergonomic chair, including a lumbar support body and a backrest assembly. The lumbar support body includes a vertically arranged sliding part and an arc-shaped lumbar support part. The sliding part is slidably connected to the backrest assembly in a vertical direction, allowing the lumbar support body to slide and adjust its height relative to the backrest assembly. The lower end of the lumbar support part is connected to the lower end of the sliding part, and the lumbar support part is inclined forward and upward relative to the sliding part. When the lumbar support part is supported by a leaning force, the upper half of the lumbar support part undergoes elastic deformation backward and downward, thereby giving the lumbar support part a tendency to return to its original position forward and upward. The ergonomic chair provided by this application, by connecting the lower end of the lumbar support part to the sliding part and tilting the lumbar support part forward and upward, makes it easy for the upper half of the lumbar support part to undergo elastic deformation when the user leans on it. By applying a forward and upward restoring elastic force to the user's waist, it not only provides a more comfortable user experience but also better conforms to the curvature of the lumbar spine, thus conforming to ergonomics.

Description

Ergonomic chair

Technical Field

The utility model relates to the technical field of seats, in particular to an ergonomic seat.

Background

Seats are furniture used widely in daily life and generally comprise a base, a backrest, armrests and the like. When a user uses a seat, the user often depends on a base and a backrest to support the buttocks and the back of the user, but the support of the waist is relatively weak, lumbar muscle strain is easily caused after sitting for a long time, and a series of lumbar diseases are caused. To provide support to the lumbar region, existing seats typically incorporate lumbar supports on the back rest. Moreover, in order to enable lumbar supports to accommodate users of different sizes and sitting postures, existing lumbar supports are generally adjustable in height and angle.

For example, the waist rest movable adjusting structure (application number: CN 202123197800.1) applied to the office chair comprises a backrest frame and a waist rest body positioned on the front side of the backrest frame, wherein the backrest frame is rotatably connected with a movable seat, the movable seat is provided with an adjusting seat, one end of the adjusting seat can be installed on the movable seat in a vertical sliding mode, the other end of the adjusting seat is rotatably connected with the back face of the waist rest body, the waist rest body can be adjusted in height by means of sliding of the adjusting seat, and can be adjusted in angle by means of rotation of the movable seat, so that a user can conveniently adjust the waist rest position according to actual requirements, and the waist rest structure is good in practicability.

However, the above-mentioned scheme has the following problems that when the user sits, the waist of the user normally applies pressure towards the rear lower side to the supporting part protruding from the waist rest, and then the adjusting seat of the above-mentioned scheme is connected to the upper end of the waist rest body, namely the upper half part of the waist rest body is not easy to generate elastic deformation, so that when the waist of the user is supported by the protruding part on the upper side of the waist rest body, the elastic deformation generated by the waist rest body is smaller, soft and comfortable supporting force cannot be applied to the waist of the user, and the use experience is uncomfortable.

Disclosure of Invention

In view of the above-mentioned drawbacks or shortcomings in the prior art, it is desirable to provide an ergonomic chair in which the lower end of the lumbar support is connected to the sliding portion, so that the upper half of the lumbar support is easily elastically deformed when being leaned by a user, and an elastic support is applied to the lumbar of the user by means of a return elastic force, so that the use experience is more comfortable, and the lumbar support is obliquely arranged forward and upward, so that the lumbar support can be applied forward and upward by the return elastic force when being leaned, so as to be more fit to the lumbar curvature of the human body, thereby being helpful for the user to correct sitting postures and being ergonomic.

The effect of the utility model is realized as follows:

The application provides an ergonomic chair, which comprises a lumbar support body and a backrest component, wherein the lumbar support body comprises a vertically arranged sliding part and a lumbar support part extending in an arc shape, the sliding part is connected with the backrest component in a sliding way along the vertical direction, so that the lumbar support body can slide relative to the backrest component to adjust the height, the lower end of the lumbar support part is connected with the lower end of the sliding part, and the lumbar support part is obliquely arranged forwards and upwards relative to the sliding part, so that when the lumbar support part is subjected to leaning force, the upper half part of the lumbar support part elastically deforms backwards and downwards, and the lumbar support part has a trend of resetting forwards and upwards.

Further, the inclination angle of the lumbar support portion is 35-55 ° compared to the sliding portion. Not only can leave enough big deformation space between the upper half of the waist support and the backrest component, but also can apply reset elasticity to the front upper side when the upper half of the waist support is elastically deformed, thereby being more in accordance with ergonomics and having better supporting effect.

Further, the waist support body is of an integrally formed structure, and the lower end of the waist support part and the lower end of the sliding part are intersected into a whole. Not only make the bulk strength of waist lean on the body higher, stability is good to the waist lean on the body can together install and dismantle in the back subassembly, handling operation is comparatively convenient, also is convenient for pack transportation.

Further, the lumbar support body is connected with the backrest component through the sliding component, the sliding component comprises a sliding groove extending along the vertical direction and an adjusting piece, the sliding groove is formed in one of the sliding part and the backrest component, and the adjusting piece penetrates through the sliding groove and is fixed to the other one of the sliding part and the backrest component. The sliding direction and the sliding distance of the waist support body are limited, so that the height adjustment operation of the waist support body is more stable, and the waist support is simple in structure and low in manufacturing cost.

Further, the adjusting piece is knob bolt, and the fretwork forms the spout that extends along vertical direction on the sliding part, and the adjusting piece passes spout and screwed connection in back subassembly for the waist leans on the body together with the adjusting piece and installs and dismantle in back subassembly. Not only the height adjustment operation of the waist support body is simpler and more convenient, but also the assembly and disassembly operations of the waist support body are simpler and more convenient. Moreover, through seting up the spout in the sliding part for the hand wheel portion of regulating part also is located the front side of sliding part, and the regulating part is hidden in the waist promptly and leans on the body inboard, is difficult for exposing, makes ergonomic seat succinct in the outward appearance, and the aesthetic property is better.

Further, a damping mechanism is disposed between the slider and the backrest assembly, the damping mechanism being configured to apply a resistance to the slider and the backrest assembly such that the lumbar support body can hover at any adjustment height. Not only the connection strength between the sliding part and the backrest component is enhanced, so that the stability of the lumbar support body is better, but also the simplicity of the height adjustment operation of the lumbar support body is further improved.

Further, the damping mechanism comprises a plurality of first clamping teeth and second clamping teeth, the plurality of first clamping teeth are arranged at the front end of the backrest assembly along the vertical direction, the rear end of the sliding part is correspondingly provided with a plurality of second clamping teeth which are arranged along the vertical direction, and when the sliding part slides relative to the backrest assembly, the second clamping teeth are meshed with the plurality of first clamping teeth in sequence. The damping sense is provided for the height adjustment of the waist support body through the engagement of the two groups of clamping teeth, the structure is simple, the connection strength between the sliding part and the backrest assembly is effectively improved, and the stability is good.

Further, the damping mechanism comprises an elastic piece, a mounting groove is concavely formed in the backrest component or the sliding part, and the elastic piece is mounted in the mounting groove and always applies elastic force to the backrest component and the sliding part. The damping effect is provided by means of the elasticity of the elastic piece, the structure is simple, the installation is convenient, and the damping effect is stronger and the stability is better for the height adjustment of the waist rest body.

According to the ergonomic chair provided by the application, the lower end of the waist support part is connected with the sliding part, so that the upper half part of the waist support part is easier to elastically deform. The upper half part of the waist support is in an arc shape, protrudes forwards and is attached to the waist of a user, elastic deformation is generated when the user leans against the waist support, elastic support is applied to the waist of the user by means of reset elastic force, the use experience is more comfortable, the waist support is obliquely arranged forwards and upwards, the waist support can apply the reset elastic force forwards and upwards when the user leans against the waist support, the waist support is attached to the lumbar curvature of a human body, the sitting posture correction of the user is facilitated, and the sitting posture correction device accords with ergonomics. Moreover, the sliding part is connected with the backrest component in a sliding way, so that the waist rest body can be adjusted in height to adapt to users with different body types and sitting postures, and the practicability is good.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

Fig. 1 is a schematic perspective view of an ergonomic chair according to an embodiment of the present application;

fig. 2 is a schematic diagram of a process of elastic deformation of the lumbar support body according to an embodiment of the present application;

fig. 3 is a schematic view illustrating a sliding adjustment process of a lumbar support body according to an embodiment of the present application

Fig. 4 is a schematic view of a connection structure between a lumbar support body and a backrest assembly according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a connection structure of a damping mechanism according to an embodiment of the present application;

FIG. 6 is a schematic view of a connection structure between an adjusting member and a sliding portion and a backrest assembly according to an embodiment of the present application;

FIG. 7 is a schematic cross-sectional view of a seat with an elastic member for a damping mechanism according to an embodiment of the present application;

Fig. 8 is a schematic diagram illustrating a process of sliding a backrest body relative to a backrest bracket according to an embodiment of the present application.

The reference numerals are 1-lumbar support body, 110-sliding part, 111-sliding groove, 112-second latch, 113-mounting groove, 120-lumbar support, 2-backrest component, 2 a-backrest body, 2 b-backrest bracket, 210-first latch, 3-adjusting piece and 4-elastic piece.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

Referring to fig. 1-8, an ergonomic chair is provided in an embodiment of the present application, including a lumbar support body 1 and a backrest assembly 2, the lumbar support body 1 includes a vertically disposed sliding portion 110 and a lumbar support portion 120 extending in an arc shape, the sliding portion 110 is slidably connected to the backrest assembly 2 along a vertical direction, so that the lumbar support body 1 can slidably adjust a height relative to the backrest assembly 2, a lower end of the lumbar support portion 120 is connected to a lower end of the sliding portion 110, and the lumbar support portion 120 is obliquely disposed forward and upward relative to the sliding portion 110, so that when the lumbar support portion 120 is subjected to leaning force, an upper half of the lumbar support portion 120 is elastically deformed backward and downward, so that the lumbar support portion 120 has a tendency of returning forward and upward.

In the present embodiment, by connecting the lower end of the lumbar support portion 120 and the sliding portion 110, the upper half portion of the lumbar support portion 120 is more easily elastically deformed. The upper half of the lumbar support 120 protrudes forward in an arc shape and is attached to the waist of the user, when the user leans on, the lumbar support is elastically deformed, elastic support is applied to the waist of the user by means of the reset elastic force, the user experience is more comfortable, and the lumbar support 120 is obliquely arranged forward and upward, so that the lumbar support 120 can apply the reset elastic force forward and upward when the user leans on, is attached to the lumbar curvature of the human body, is beneficial to correcting sitting postures of the user, and accords with ergonomics. Moreover, the sliding part 110 is slidably connected to the backrest assembly 2, so that the lumbar support body 1 can be adjusted in height to adapt to users with different body types and sitting postures, and the practicability is good.

Referring to fig. 8, the backrest assembly 2 includes a backrest body 2a and a backrest bracket 2b, and the sliding portion 110 is slidably connected to a front end of the backrest body 2 a. The backrest body 2a can slide up and down relative to the backrest bracket 2b, so that the ergonomic chair can further adjust the height of the lumbar support body 2a and the overall height of the chair by sliding the backrest body 2a, thereby further improving the practicability. The backrest body 2a and the backrest bracket 2b are subjected to height adjustment through a common circulation gear adjusting mechanism in the prior art, and the patent is not repeated.

Referring to fig. 2, in some embodiments of the present application, the lumbar support portion 120 is inclined at an angle of 35-55 ° compared to the sliding portion 110. Not only make to prop the waist 120 and leave the space between the back subassembly 2 and leave enough big deformation space for propping waist 120 promptly, when making to prop waist 120 upper half and produce elastic deformation moreover, can apply the elasticity that resets forward and upward, the user's waist feel the supporting force forward and upward promptly, accords with ergonomic more, and the supporting effect is better.

Referring to fig. 4, in some embodiments of the present application, the lumbar support body 1 is an integrally formed structure, and the lower end of the lumbar support portion 120 and the lower end of the sliding portion 110 are joined together as a whole.

In this embodiment, through setting up the lumbar support body 1 as the structure of an organic whole formation type, not only make the bulk strength of lumbar support body 1 higher, stability is good to lumbar support body 1 can together install and dismantle in back subassembly 2, and loading and unloading operation is comparatively convenient, also is convenient for pack transportation.

Referring to fig. 6, in some embodiments of the present application, the lumbar support body 1 and the backrest assembly 2 are connected by a sliding assembly, the sliding assembly includes a sliding slot 111 extending along a vertical direction, and an adjusting member 3, the sliding slot 111 is formed in one of the sliding portion 110 and the backrest assembly 2, and the adjusting member 3 passes through the sliding slot 111 and is fixed to the other of the sliding portion 110 and the backrest assembly 2.

In this embodiment, when the lumbar support body 1 is adjusted in height, the adjusting member 3 slides in the sliding groove 111, thereby restricting the sliding direction and sliding distance of the lumbar support body 1, making the height adjustment operation of the lumbar support body 1 more stable, and the lumbar support body 1 has a simple structure and a low manufacturing cost.

Referring to fig. 6, in some embodiments of the present application, the adjusting member 3 is a knob bolt, the sliding portion 110 is hollowed out to form a chute 111 extending along a vertical direction, and the adjusting member 3 passes through the chute 111 and is screwed to the backrest assembly 2, so that the lumbar support body 1 can be assembled and disassembled to the backrest assembly 2 along with the adjusting member 3.

In the embodiment, the height of the lumbar support body 1 can be fixed by only tightening the adjusting member 3 and pressing the sliding portion 110 to the backrest assembly 2 by adopting the knob bolt, otherwise, the height of the lumbar support body 1 can be readjusted by only loosening the adjusting member 3 and sliding the sliding portion 110 relative to the backrest assembly 2, so that the height adjusting operation of the lumbar support body 1 is simpler. In addition, after the adjusting piece 3 is unscrewed, the lumbar support body 1 can be disassembled together with the adjusting piece, so that the assembly and disassembly operations of the lumbar support body 1 are also simpler and more convenient. Moreover, through seting up spout 111 in slider 110 for the hand wheel portion of regulating part 3 also is located the front side of slider 110, and regulating part 3 is hidden in waist and leans on body 1 inboard promptly, is difficult for exposing, makes ergonomic seat succinct in the outward appearance, and the aesthetic property is better.

Referring to fig. 4-5, in some embodiments of the present application, a damping mechanism is disposed between the sliding portion 110 and the backrest assembly 2, and the damping mechanism is configured to apply a resistance to the sliding portion 110 and the backrest assembly 2, so that the lumbar support body 1 can hover at any adjustment height.

In the present embodiment, by providing the damping mechanism, not only the connection strength between the sliding portion 110 and the backrest assembly 2 is enhanced, so that the stability of the lumbar support body 1 is better. And by means of the damping effect of the damping mechanism, the lumbar support body 1 can hover at any adjusting height in the adjusting process. That is, when the lumbar support body 1 is adjusted in height, the user does not need to press the lumbar support body 1 by one hand to fix the height, and then screw the adjusting piece 3 by one hand to fix the lumbar support body 1 on the backrest component 2, so that the user can pull the lumbar support body 1 to a proper height at will, and then screw the adjusting piece 3 to fix the position of the lumbar support body 1. Further improving the simplicity of the height adjustment operation of the lumbar support body 1.

Referring to fig. 4-5, in some embodiments of the present application, the damping mechanism includes a plurality of first latches 210 and a plurality of second latches 112, the plurality of first latches 210 are vertically arranged at the front end of the backrest module 2, the plurality of second latches 112 are vertically arranged at the rear end of the sliding portion 110, and when the sliding portion 110 slides relative to the backrest module 2, the second latches 112 sequentially engage with the plurality of first latches 210.

In this embodiment, the first latch 210 and the second latch 112 are meshed with each other between the sliding portion 110 and the backrest assembly 2, and the damping effect is provided for the height adjustment of the lumbar support body 1 by the meshing of the two sets of latches, so that the structure is simple, the connection strength between the sliding portion 110 and the backrest assembly 2 is effectively improved, and the stability is good.

Referring to fig. 7, in some embodiments of the present application, the damping mechanism may also have other structures, for example, the damping mechanism includes an elastic member 4, a mounting groove 113 is concavely formed on the backrest module 2 or the sliding portion 110, and the elastic member 4 is mounted in the mounting groove 113 and always applies elastic force to the backrest module 2 and the sliding portion 110.

In this embodiment, by providing the elastic member 4 between the backrest assembly 2 and the sliding portion 110, the damping effect is provided by the elastic force of the elastic member 4, the structure is simple and convenient to install, and the high damping effect is provided for the height adjustment of the lumbar support body 1, so that the stability is better.

Wherein, preferably, the rear end of the sliding part 110 is concavely formed with upper and lower mounting grooves 113, namely, the damping effect is provided between the sliding part 110 and the backrest module 2 by two groups of elastic members 4, so that the stability is better. The elastic piece 4 adopts rubber, so that the elasticity is good, the friction coefficient of the rubber is high, and the damping sense is further enhanced. Of course, in other embodiments of the present application, the elastic member 4 may also be a spring, foam, or the like.

It is to be understood that the above references to the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are for convenience in describing the present utility model and simplifying the description only, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is three or more.

The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.

Claims (8)

1. The ergonomic chair is characterized by comprising a lumbar support body (1) and a backrest assembly (2), wherein the lumbar support body (1) comprises a vertically arranged sliding part (110) and a lumbar support part (120) extending in an arc shape, the sliding part (110) is connected with the backrest assembly (2) in a sliding mode along the vertical direction, the lumbar support body (1) can be adjusted in height relative to the backrest assembly (2) in a sliding mode, the lower end of the lumbar support part (120) is connected with the lower end of the sliding part (110), the lumbar support part (120) is obliquely arranged relative to the sliding part (110) in the front upper direction, and when the lumbar support part (120) is subjected to leaning force, the upper half part of the lumbar support part (120) is elastically deformed towards the rear lower direction, and the lumbar support part (120) has a tendency of resetting towards the front upper direction.

2. The ergonomic chair according to claim 1, characterized in that said lumbar support portion (120) has an inclination angle of 35-55 ° with respect to said sliding portion (110).

3. Ergonomic seat according to claim 1, characterized in that said lumbar support body (1) is of integral type construction, the lower end of said lumbar support portion (120) and the lower end of said sliding portion (110) being joined as a single piece.

4. Ergonomic seat according to claim 1, characterized in that the lumbar support body (1) and the backrest assembly (2) are connected by a sliding assembly comprising a chute (111) extending in a vertical direction and an adjustment member (3), the chute (111) being open at one of the sliding portion (110) and the backrest assembly (2), the adjustment member (3) passing through the chute (111) and being fixed to the other of the sliding portion (110) and the backrest assembly (2).

5. The ergonomic chair according to claim 4, characterized in that said adjustment member (3) is a knob bolt, said sliding portion (110) is hollowed out to form said sliding groove (111) extending in a vertical direction, said adjustment member (3) passes through said sliding groove (111) and is screwed to said backrest assembly (2), so that said lumbar support body (1) can be assembled and disassembled to said backrest assembly (2) together with said adjustment member (3).

6. Ergonomic seat according to claim 1, characterized in that a damping mechanism is provided between the sliding portion (110) and the backrest assembly (2), configured to exert a resistance on the sliding portion (110) and the backrest assembly (2) so that the lumbar support body (1) can hover at any adjustment height.

7. The ergonomic chair according to claim 6, characterized in that said damping mechanism comprises a plurality of first latches (210) and second latches (112), said plurality of first latches (210) being arranged in a vertical direction at a front end of said backrest assembly (2), said sliding portion (110) being provided at a rear end thereof with a plurality of second latches (112) arranged in a vertical direction, said second latches (112) being in turn engaged with said plurality of first latches (210) when said sliding portion (110) slides with respect to said backrest assembly (2).

8. The ergonomic chair according to claim 6, characterized in that said damping mechanism comprises an elastic element (4), said backrest assembly (2) or said sliding portion (110) being provided with a mounting groove (113) in a recessed manner, said elastic element (4) being mounted in said mounting groove (113) and exerting an elastic force on said backrest assembly (2) and said sliding portion (110) at all times.