CN209950807U - Chair with chair back capable of swinging along with movement - Google Patents

Abstract

The utility model relates to a chair back of the chair follow-up sways seat, including the back of the chair, seat and elastic component, back of the chair bottom rotate with the seat and be connected, and the back of the chair wind the seat horizontal hunting under the lateral force effect and make the elastic component warp, when the lateral force disappears, the back of the chair resumes to initial condition under the elastic component effect. Compared with the prior art, the utility model realizes that the chair back can swing left and right in a laminating way along with the left inclination or the right inclination of the back of the human body, has high flexibility, has certain buffer effect when swinging left and right, has high safety and comfort, can reset when the chair back does not have external force, keeps balance, realizes the self-adaptive function of follow-up swinging, and accords with human engineering; and the modular design of the swing mechanism occupies small space, is convenient for opening the die and can be widely applied to the existing seat.

Description

Chair with chair back capable of swinging along with movement

Technical Field

The utility model belongs to the technical field of furniture equipment, especially, relate to a chair back follow-up sways's seat that accords with ergonomic.

Background

The office chair is an indispensable product in office furniture, and is popular with consumers due to good practicability. However, the adjustment function of the chair back on the market is mostly limited to forward tilting or backward tilting, however, in the actual use process, the activity state of the back of the human body is not limited to forward tilting or backward tilting, and the left tilting or right tilting actions such as side-to-side talking, side-to-side fetching, etc. are also very frequent when the user sits; therefore, the existing seat cannot be correspondingly adjusted according to the left-leaning or right-leaning posture of the user, cannot meet the requirement of diversified sitting postures of the user, and is poor in self-adaption, flexibility and comfort.

In order to overcome the defects existing in the prior art, the utility model provides a chair which can swing along with the back posture of the human body in a follow-up way, correspondingly inclines leftwards or rightwards, has high flexibility and good comfort and accords with the ergonomics.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present invention provides a chair with a back following swing that can swing along with the posture of the back of the human body, with a corresponding left-leaning or right-leaning swing, high flexibility, good comfort, and ergonomic compliance.

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

a chair with a swinging chair back following comprises a chair back, a seat part and an elastic part, wherein the bottom of the chair back is rotationally connected with the seat part, the chair back swings left and right around the seat part under the action of lateral force and causes the elastic part to deform, and when the lateral force disappears, the chair back is restored to an initial state under the action of the elastic part; the lateral force is: a force in a direction toward the left, lower left, right, or lower right of the seat back.

The utility model discloses rotate along left and right direction between the middle chair back and the seat and connect, realized that the back of the chair can follow the left bank or the right bank of human back and swing left and right with laminating ground, the flexibility is high, reach the function and the healthy comfortable official working position of sitting that the back of the chair follow-up swayed, and the elastic component makes the back of the chair have certain cushioning effect when swaying left and right, security and travelling comfort are high, the back of the chair of the while is convenient for reset when not having under the exogenic action, keep balance, realize the self-adaptation function of following-up swaying, accord with ergonomic; and the modular design of the swing mechanism occupies small space, is convenient for opening the die and can be widely applied to the existing seat.

Preferably, be connected with between the back of the chair and the seat and be used for realizing that the back of the chair is the rocking mechanism of left and right rocking motion relatively the seat, rocking mechanism is including the fixed part of rotation connection and the rocking piece of rocking motion about being for the fixed part, the elastic component sets up and just offsets with both between rocking piece and the fixed part respectively.

The swing piece is rotatably connected with the fixing piece, and meanwhile, the elastic piece which is abutted against the swing piece and arranged between the swing piece and the fixing piece realizes that the swing piece can swing leftwards or rightwards correspondingly under the action of external force, has high flexibility, ensures that the swing piece has certain buffer action when swinging leftwards and rightwards, has high safety and comfort, is convenient for the swing piece to reset under the action of no external force, keeps balance, realizes the self-adaption function of follow-up swing, and accords with human engineering; the swinging piece is connected with the chair back, and the fixing piece is connected with the seat part, so that the chair back can correspondingly swing leftwards or rightwards along with the posture of the back of the human body.

Preferably, a connecting part is fixedly arranged behind or below the seat part, the fixing part is fixedly connected with the connecting part, and the swinging part is fixedly connected with the chair back.

The swinging piece is fixedly connected with the chair back, and the fixing piece is fixedly connected with the connecting part, so that the chair back can correspondingly swing leftwards or rightwards along with the posture of the back of a human body.

Preferably, a chassis is fixedly arranged at the bottom of the seat part, the chassis comprises a rocker serving as the connecting part, and the fixing part is fixedly connected to the rocker.

At present, the chassis on the market basically comprises a seesaw and has the function of tilting forwards and backwards, so that the fixing piece is fixedly connected to the seesaw, the chair back has the functions of adjusting forwards, backwards, leftwards and rightwards, the function of follow-up swinging in more directions is realized, the comfort is better, and the chassis better accords with the human engineering; a supporting rod and a supporting chair leg are sequentially arranged below the chassis.

Preferably, the connecting part is a support plate, and the fixing part is fixedly connected to the support plate.

The fixing piece is directly and fixedly connected to the supporting plate, so that the left-right leaning function of the chair back can be realized.

Preferably, the lower portion of the seat back is provided with an accommodating cavity for accommodating the rocking mechanism and the connecting portion.

Firstly, hold rocking mechanism and connecting portion completely in holding the intracavity, played hidden function, externally seem, can't see rocking mechanism and connecting portion, succinctly pleasing to the eye, secondly, can carry out the parcel of certain degree with rocking mechanism and connecting portion for the connection of rocking mechanism and connecting portion is more stable, and difficult production is not hard up, and the back of the chair left and right sides sways more stably.

Preferably, the fixing piece comprises a first connecting plate, and a first connecting part a and a first connecting part b which are arranged in a front-back opposite direction are arranged on the periphery of the first connecting plate; the swing piece comprises a second connecting plate, and a second connecting part a and a second connecting part b which are arranged in a front-back opposite direction are arranged on the periphery of the second connecting plate; the first connecting portion a is rotatably connected with the second connecting portion a through a rotating shaft, and the first connecting portion b is rotatably connected with the second connecting portion b through a rotating shaft.

The swinging piece and the fixing piece are rotationally connected at the front side and the rear side, so that the chair back can do left-right swinging motion relative to the seat part; the rotating shaft can be a rotating shaft which penetrates through the fixing piece and swings, and can also comprise a hinged piece which is rotatably connected with the first connecting part a and the second connecting part a, and another hinged piece which is rotatably connected with the first connecting part b and the second connecting part b.

Preferably, the left side and the right side of the axis of the rotating shaft are uniformly distributed with elastic pieces, and the elastic force of the left side and the elastic force of the right side are consistent; the elastic piece is any one of a pressure spring, a torsion spring or elastic rubber.

Because the elasticity size of the left and right sides is unanimous, realized that the piece that sways can make the swing action of correspondingly heeling or heeling under the exogenic action, the flexibility is high to have certain cushioning effect when making to sway the piece left and right sides, security and travelling comfort are high, the elastic component of being convenient for simultaneously resets when not having the exogenic action, keep balance, and then makes the back of the chair effectively reset, realizes the function that the follow-up swayed, accords with ergonomic.

Preferably, the rocking member rocks at an angle of 5 ° to 15 ° to the left and rocks at an angle of 5 ° to 15 ° to the right.

The device provides proper swing amplitude, has good comfort and high safety, and preferably has the angle of 6-10 degrees, and most preferably 8 degrees.

Preferably, the periphery of the first connecting plate is provided with a first limiting part a and a first limiting part b which are oppositely arranged left and right, and the periphery of the second connecting plate is provided with a second limiting part a and a second limiting part b which are oppositely arranged left and right; when the second limiting part a swings and contacts the first limiting part a, the first limiting part a stops the second limiting part a; when the second limiting part b swings and contacts the first limiting part b, the first limiting part b stops the second limiting part b.

Therefore, the angle of the swing piece and the chair back swinging left and right is limited, the limit is realized, the excessive swing is avoided, the comfort is good, the safety is high, and the chair accords with the human engineering.

Preferably, a connecting portion is provided behind or below the seat portion, the fixing member is integrally formed with the connecting portion, and the swinging member is integrally formed with the seat back.

The integrated into one piece's connected mode is more firm, reduces occupation space simultaneously, the modular design of being convenient for, reduce cost.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a chair back follow-up swinging seat which can swing along with the posture of the back of a human body correspondingly in a left-leaning or right-leaning way, has high flexibility and good comfort and accords with the ergonomics. The utility model discloses be connected with the wabbler mechanism who makes the back of the chair sway about with the seat portion in the middle of before the back of the chair and the seat portion, be provided with the elastic component in the wabbler mechanism, realized that the wabbler mechanism can make the swing action of corresponding heeling or right bank under the exogenic action, and then realized that the back of the chair can follow the heeling or the right bank of the body back and swing about laminating, the flexibility is high, reach the function that the back of the chair follow-up sways and healthy comfortable official working position of sitting, and the elastic component makes the back of the chair have certain cushioning effect when swaying about, security and travelling comfort are high, the back of the chair resets when there is no exogenic action simultaneously again, keep balance, realize the self-adaptation function of; and the modular design of the swing mechanism occupies small space, is convenient for opening the die and can be widely applied to the existing seat.

Drawings

FIG. 1 is a schematic view showing a seat and a rocking structure and a part of the interior of both in embodiment 1;

FIG. 2 is an enlarged schematic view of the portion C in FIG. 1;

FIG. 3 is a schematic structural view of the chair back and the rocking member in three states of leftward inclination a1, returning to the neutral equilibrium position b1 and rightward inclination c1 under the action of an external force applied to the chair back in the embodiment 1;

FIG. 4 is an enlarged view of the portion D in FIG. 3;

FIG. 5 is an exploded perspective view of the swing structure and the seat back of the chair according to example 1;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic view showing a structure among the swing structure, the seat back, and the base pan in embodiment 1;

FIG. 8 is an enlarged view of the portion B of FIG. 7;

FIG. 9 is a schematic structural view of a rocking structure according to embodiment 1;

FIG. 10 is a partial sectional view schematically showing the rocking structure of embodiment 1;

FIG. 11 is an exploded view of the rocking structure of example 1;

FIG. 12 is a schematic top view of the rocking member of embodiment 1;

FIG. 13 is a schematic top view showing the structure of the fixing member according to example 1;

fig. 14 is a schematic diagram of the internal structure of the rocking structure of embodiment 1 showing three states of the rocking member under the action of external force, i.e. a left-leaning state a1, a return-to-middle equilibrium position b1 and a right-leaning state c 1;

FIG. 15 is a schematic view showing an internal structure of a rocking structure according to embodiment 2, in which a torsion spring is provided;

fig. 16 is another structural schematic view of a seat according to embodiment 3.

Detailed Description

The following describes in detail an embodiment of the present invention with reference to the drawings.

The present embodiment relates to reference orientations of components, such as up, down, left, right, front, rear, etc., described at an angle of a user when the user is seated in the seat.

Example 1:

a chair with a swinging chair back following function, as shown in fig. 1-14, comprising a chair back 500 and a seat 600, wherein a swinging mechanism 1000 for realizing the left-right swinging motion of the chair back 500 relative to the seat 600 is connected between the chair back 500 and the seat 600, and the swinging mechanism 1000 comprises an elastic element for realizing the swinging of the chair back 500 and the resetting after swinging; specifically, the swing mechanism 1000 includes a fixed member 100 rotatably connected to the swing member 200, and the swing member 200 performs a left-right swing motion with respect to the fixed member 100, the swing member 200 swings at an angle of 8 ° to the left side and at an angle of 8 ° to the right side, and an elastic member abutting against the swing member 200 and the fixed member 100 is provided between the swing member 200 and the fixed member 100 to realize the swing of the swing member 200 and the reset after the swing.

Specifically, a chassis 700 is fixedly provided at the bottom of the seat 600, the chassis 700 includes a rocker 720 as a connecting portion, the fixing member 100 is fixedly connected to the rocker 720, the swing member 200 is fixedly connected to the seat back 500, and a support bar 800 and a support leg 900 are sequentially provided below the chassis 700; a receiving cavity 520 for receiving the entire rocking mechanism 1000 and the rocker 720 is formed at the lower portion of the chair back 500; specifically, the chair back 500 is a frame structure, which includes a bottom frame side 530, a left frame side 540, and a right frame side 550, as shown in fig. 5-7, a raised portion 531 may be disposed in the middle of the bottom frame side 530, and an accommodating cavity 520 with an open lower end is disposed in the raised portion 531; a backrest surface is provided in the frame structure of the chair back 500.

The fixing member 100 comprises a first connecting plate 110, wherein a first connecting part a120 and a first connecting part b130 which are arranged in a front-back opposite direction are arranged on the periphery of the first connecting plate 110; the rocking piece 200 includes a second connecting plate 210, and a second connecting portion a220 and a second connecting portion b230 are provided around the second connecting plate 210; the first connection portion a120 and the first connection portion b130 are bent by extending the periphery of the first connection plate 110 upward, and the second connection portion a220 and the second connection portion b230 are bent by extending the periphery of the second connection plate 210 downward; the first connecting portion a120, the first connecting portion b130, the second connecting portion a220, and the second connecting portion b230 commonly penetrate a pin shaft 400 to realize the rotational connection between the swing member 200 and the fixing member 100, further, as shown in fig. 9-11, a first pin hole 160 is respectively opened on the first connecting portion a120 and the first connecting portion b130, a second pin hole 260 is respectively opened on the second connecting portion a220 and the second connecting portion b230, two pin holes 160 and two pin holes 260 are symmetrically disposed between the two first pin holes 160, and anti-falling caps 410 for preventing the pin shaft 400 from sliding out are disposed at both ends of the pin shaft 400.

Wherein, the left and right sides of the axis of the rotating shaft, namely the left and right sides of the plug pin shaft 400, are respectively provided with an elastic part and the elastic force of the two sides is consistent, the elastic part is specifically a pressure spring 310, in order to ensure the stability of the pressure spring 310 in the action, anti-slip parts are arranged on the first connecting plate 110 and the second connecting plate 210, the upper and lower ends of the pressure spring 310 are relatively fixed on the anti-slip parts, the anti-slip parts can be anti-slip columns, the anti-slip columns are inserted in the pressure spring 310, and can also be anti-slip holes, the upper and lower ends of the pressure spring 310 are.

Specifically, the first connection plate 110 is further provided with a first connection hole 111, the second connection plate 210 is provided with a second connection hole 211, the rocker 720 is provided with a third connection hole 710, and screws sequentially pass through the third connection hole 710 and the first connection hole 111 and then are locked to realize the fixed connection between the fixing member 100 and the rocker 720; a fourth connecting hole 510 is formed in the lower portion of the chair back 500, screws sequentially pass through the fourth connecting hole 510 and the second connecting hole 211 and then are locked to achieve fixed connection between the swing piece 200 and the chair back 500, in order to ensure that the fourth connecting hole 510 and the screws are in a hidden state, an open groove 560 for accommodating a decorative plate is formed in the fourth connecting hole 510 and the periphery of the fourth connecting hole, and after the screws are installed, the decorative plate is only required to be buckled in the open groove 560; the first connecting hole 111, the second connecting hole 211, the third connecting hole 710 and the fourth connecting hole 510 are all screw mounting holes.

Further, the first connecting plate 110 has a first limiting portion a140 and a first limiting portion b150 disposed opposite to each other in the left-right direction at the periphery thereof, and the second connecting plate 210 has a second limiting portion a240 and a second limiting portion b250 disposed opposite to each other in the left-right direction at the periphery thereof; the first and second limiting portions a140 and b150 are bent by extending the periphery of the first connecting plate 110 upward, the second and second limiting portions a240 and b250 are flat plates by extending the periphery of the second connecting plate 210 outward, the boundary of the second limiting portion a240 protrudes out of the first limiting portion a140, the boundary of the second limiting portion b250 protrudes out of the first limiting portion b150, and when the second limiting portion a240 swings and contacts the first limiting portion a140, the first limiting portion a140 stops the second limiting portion a240 from continuing swinging to limit the swinging angle of the swinging member; when the second position-limiting portion b250 swings and contacts the first position-limiting portion b150, the first position-limiting portion b150 stops the second position-limiting portion b250 from continuing to swing so as to limit the swing angle of the swinging member.

In the using process, when a user sits on the seat and has a sitting posture of leaning left or right, the chair back 500 can swing left and right in a fitting manner along with the leaning left or right of the back of the human body, so that the function of the following swing of the chair back 500 and a healthy and comfortable office sitting posture are achieved; specifically, when the seat back 500 swings left and right, the swing member 200 swings left and right with the latch shaft 400 as a rotation center, as shown in fig. 3, 4 and 14, in the state of a1, the user's back leans to the left, the seat back 500 and the swing member 200 lean to the left, in the state of c1, the user's back leans to the right, the seat back 500 and the swing member 200 lean to the right, and at the same time, the first stopper a140 and the first stopper b150 can stop the excessive swing of the swing member 200 to limit the swing angle of the swing member 200, and due to the consistency of the elasticity and the elasticity of the compression springs 310 on the left and right sides of the latch shaft 400, the seat back 500 can swing to the left or the right correspondingly under the action of the human back, the flexibility is high, the seat back 500 has a certain buffering action during the left and right swing, the safety and the comfort are high, and the return of the compression springs 310 is facilitated without the action of external force, the chair back 500 is effectively reset by keeping balance and entering the intermediate state of b1, the function of follow-up swinging is realized, the ergonomics is met, and the chair back has higher flexibility by combining the function of forward and backward tilting of the chassis, and the requirements of different back postures of a human body are met.

Example 2:

the difference from example 1 is that:

as shown in fig. 15, the middle part of the swinging member 200 is rotatably connected with the base 100 through a rotating shaft, and the swinging member 200 is fixedly connected with the rotating shaft; the elastic body is a torsion spring 320, the axis of the torsion spring 320 is sleeved on the rotating shaft and is relatively fixed with the rotating shaft in the circumferential direction, and two torsion arms of the torsion spring 320 are simultaneously abutted with the base 100; the left-right swing of the swing member 200 and the reset after the swing are realized under the action of the torsion spring 320.

Example 3:

the difference from example 1 is that:

as shown in fig. 16, a left armrest 1100 and a right armrest 1200 are respectively fixed to left and right sides of the seat back 500, a lower portion of the left armrest 1100 and a lower portion of the right armrest 1200 are fixedly connected by a U-shaped frame 1300, a protrusion 1310 is disposed in a middle portion of the U-shaped frame 1300, and a receiving space for receiving the entire swing mechanism 1000 and a chassis rocker (not shown) is formed in the protrusion 1310. The accommodating space corresponds to the accommodating chamber 520 in embodiment 1.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims (11)

1. The utility model provides a chair that back of chair follow-up was swayd which characterized in that: including back of the chair (500), seat (600) and elastic component, back of the chair (500) bottom be connected with seat (600) rotation, and back of the chair (500) around seat (600) horizontal hunting and impel the elastic component deformation under the lateral force effect, when the lateral force disappears, back of the chair (500) restores to initial condition under the elastic component effect.

2. A chair back follow-up rocking chair as claimed in claim 1, wherein: be connected with between back of the chair (500) and the seat (600) and be used for realizing back of the chair (500) and do rocking mechanism (1000) of left and right rocking motion relative seat (600), rocking mechanism (1000) are including rotating mounting (100) of connecting and rocking piece (200) of left and right rocking motion for mounting (100), the elastic component setting is just offseted with both respectively between rocking piece (200) and mounting (100).

3. A chair back follow-up rocking chair as claimed in claim 2, wherein: the rear part or the lower part of the seat part (600) is fixedly provided with a connecting part, the fixing part (100) is fixedly connected with the connecting part, and the swinging part (200) is fixedly connected with the chair back (500).

4. A chair back follow-up rocking chair as claimed in claim 3, wherein: the bottom of seat (600) is fixed and is equipped with chassis (700), chassis (700) including as connecting portion wane (720), mounting (100) fixed connection is on wane (720).

5. A chair back follow-up rocking chair as claimed in claim 3, wherein: the connecting part is a supporting plate, and the fixing part (100) is fixedly connected to the supporting plate.

6. A chair back follow-up rocking chair as claimed in claim 3, 4 or 5, wherein: the lower part of the chair back (500) is provided with an accommodating cavity (520) for accommodating the swing mechanism (1000) and the connecting part.

7. A chair back follow-up rocking chair as claimed in claim 2, wherein: the fixing piece (100) comprises a first connecting plate (110), and a first connecting part a (120) and a first connecting part b (130) which are arranged in a front-back opposite mode are arranged on the periphery of the first connecting plate (110); the swing piece (200) comprises a second connecting plate (210), and a second connecting part a (220) and a second connecting part b (230) which are arranged in a front-back opposite direction are arranged on the periphery of the second connecting plate (210); the first connecting part a (120) is rotatably connected with the second connecting part a (220) through a rotating shaft, and the first connecting part b (130) is rotatably connected with the second connecting part b (230) through a rotating shaft.

8. A chair back follow-up rocking chair as claimed in claim 7, wherein: elastic pieces are distributed on the left side and the right side of the axis of the rotating shaft, and the elastic force of the left side and the elastic force of the right side are consistent; the elastic piece is any one of a pressure spring (310), a torsion spring (320) or elastic rubber.

9. The chair with the chair back follow-up rocking function as claimed in claim 2, wherein the rocking member (200) rocks at an angle of 5 ° ~ 15 ° to the left and at an angle of 5 ° ~ 15 ° to the right.

10. A chair back follow-up rocking chair as claimed in claim 7, wherein: the periphery of the first connecting plate (110) is provided with a first limiting part a (140) and a first limiting part b (150) which are oppositely arranged left and right, and the periphery of the second connecting plate (210) is provided with a second limiting part a (240) and a second limiting part b (250) which are oppositely arranged left and right; when the second limiting part a (240) swings and contacts the first limiting part a (140), the first limiting part a (140) stops the second limiting part a (240); when the second position-limiting part b (250) swings and contacts the first position-limiting part b (150), the first position-limiting part b (150) stops the second position-limiting part b (250).

11. A chair back follow-up rocking chair as claimed in claim 2 or 3, wherein: the rear or the lower part of the seat (600) is provided with a connecting part, the fixing part (100) and the connecting part are integrally formed, and the swinging part (200) and the chair back (500) are integrally formed.

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