CN216316672U

CN216316672U - Gravity self-adaptation sofa

Info

Publication number: CN216316672U
Application number: CN202122576738.0U
Authority: CN
Inventors: 李云海; 冯元峰; 魏爱国; 姚有贵; 蔡海辉; 崔振; 吴宗伟
Original assignee: Kuka Home Co Ltd
Current assignee: Kuka Home Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-04-19
Anticipated expiration: 2031-10-25

Abstract

The application relates to a gravity self-adaptive sofa which comprises a seat frame, a backrest frame and an armrest frame, wherein the backrest frame is rotationally connected to the seat frame through a rotating mechanism, the backrest frame is rotationally connected to the armrest frame, one end, close to the backrest frame, of the seat frame is connected to the armrest frame in a sliding mode through the rotating mechanism, and one end, far away from the backrest frame, of the seat frame is connected to the armrest frame in a sliding mode through a sliding mechanism. If a person sits on the sofa in a sitting posture and needs to adjust the angle posture of the backrest, the angle of the backrest can be adjusted by slightly leaning on the backrest, the adjustable range can be adjusted within 36 degrees based on the sitting posture, the requirements of different sitting posture leisure postures and lying postures can be met, the person can stop at any position, and the best use experience of the user is realized. Manual positioning is not needed any more, or a switch is not found, and the operation is convenient. The both ends of second guide way are spacing to overall structure operation jointly, make overall structure move at the within range of setting for, satisfy user's user demand.

Description

Gravity self-adaptation sofa

Technical Field

The application relates to the field of furniture, in particular to a gravity self-adaptive sofa.

Background

With the development of the household industry, sofa structures with various functions are diversified, various using postures of the sofa are increased, and various experience feelings are brought to users. The mainstream functional sofa basically meets the daily requirements of users in 3 postures of sitting posture, leisure posture and lying posture.

The functional sofa products in the current market can be divided into electric drive and spring tension or elastic drive from a drive source, power lines, transformers, motors and switches are required to be added for the electric drive, the mechanism for the elastic drive is more complex, and a plurality of mechanisms are required to control the opening of an elastic lifting, returning and locking system. The electric driving structure can be positioned at each attitude angle, and the elastic system is difficult to solve the positioning of each attitude angle. The electrically-driven product needs to press the switch by hand when changing the posture angle, but the switch mounting position of the sofa has certain limitation, and the switch needs to be found firstly to be adjusted when the posture of the human body is changed. When the posture of the elastic structure is adjusted, the elastic structure generally needs self force to perform strenuous actions such as opening or pulling back and the like. The experience of use is not good.

SUMMERY OF THE UTILITY MODEL

In order to improve the feeling of use experience,

the application provides a gravity self-adaptation sofa, adopts following technical scheme:

a gravity self-adaptive sofa comprises a seat frame, a backrest frame and an armrest frame, wherein the backrest frame is rotatably connected to the seat frame through a rotating mechanism, the backrest frame is rotatably connected to the armrest frame, one end, close to the backrest frame, of the seat frame is connected to the armrest frame through the rotating mechanism in a sliding manner, one end, far away from the backrest frame, of the seat frame is connected to the armrest frame through a sliding mechanism in a sliding manner, the rotating mechanism comprises a seat frame connecting piece used for being connected with the seat frame, a backrest connecting piece used for being connected with a backrest, a rotating shaft arranged on the seat frame connecting piece and rotatably connected to the backrest connecting piece, a first guide shaft arranged on the backrest connecting piece and slidably connected to the seat frame connecting piece, the sliding mechanism comprises a sliding seat provided with a second guide groove and arranged on the seat frame, and a second guide shaft arranged on the armrest frame and slidably connected to the second guide groove, the second guide groove is obliquely and upwards formed.

By adopting the technical scheme, if a person sits on the sofa in a sitting posture and needs to adjust the angle posture of the backrest, the angle of the backrest can be adjusted by only lightly leaning on the backrest, the adjustable range can be adjusted within 36 degrees on the basis of the sitting posture, the requirements of different sitting posture leisure postures and lying postures can be met, the person can stop at any position, and the best use experience of the user is realized. Manual positioning is not needed any more, or a switch is not found, and the operation is convenient. The both ends of second guide way are spacing to overall structure operation jointly, make overall structure move at the within range of setting for, satisfy user's user demand.

Optionally, the length of a connecting line between the rotation point a of the backrest connecting piece relative to the armrest frame and the rotation point B of the backrest connecting piece relative to the seat frame connecting piece is 18.7 mm-19.3 mm.

Through adopting above-mentioned technical scheme, rotation point A and rotation point B have set for optimum size through human engineering and structural simulation and have listed as, and self-balancing of health can be realized through the weight of human body to back and cushion, realizes opening and can both easily move with the cage of returning.

Optionally, a brake fastening mechanism is arranged on the first guide shaft, the brake fastening mechanism includes a brake pad sleeved on the first guide shaft and an adjusting component used for pushing the seat frame connecting piece to the backrest connecting piece through the brake pad, and a third guide groove for allowing the first guide shaft to slide is formed in the brake pad.

Through adopting above-mentioned technical scheme, through the frictional force that needs overcome when adjusting seat frame connecting piece motion, let the user when using the product, can adjust mechanical locking force according to different users' weight, let the user adjustment of different weights be fit for the operation dynamics demand of oneself and can alternate the gesture at will, can be at every comfortable angular positioning. The optimal operation smoothness and the proper positioning function are achieved.

Optionally, brake block one end is rotated and is connected in seat frame connecting piece, adjusting part including adjust the handle, locate the support of brake block both sides piece, be located one of them support piece and adjust the elastic component between the handle, first guiding axle passes seat frame connecting piece, a support piece, third guide way, another support piece, elastic component in proper order, and threaded connection is in adjusting the handle.

Through adopting above-mentioned technical scheme, the rotation regulation through adjusting the handle is adjusted elastic component elasticity size, and the elastic component is through the pressure to the tight piece that supports, the frictional force that needs overcome when adjusting seat frame connecting piece motion to adjustable demand that is fit for every user to the product elasticity reaches the smooth and easy degree of best operation and the just locate function who is right.

Optionally, a pushing piece is arranged between the elastic piece and the abutting piece, the pushing piece is sleeved outside the first guide shaft, and the elastic piece pushes the abutting piece to move relative to the brake pad through the pushing piece.

Through adopting above-mentioned technical scheme to make the elasticity of elastic component can transmit the seat frame connecting piece better.

Optionally, the backrest frame is detachably connected to the backrest connecting member through a ferrule assembly.

By adopting the technical scheme, the backrest can be conveniently and quickly installed or replaced, and the assembly efficiency is improved.

Optionally, the clamping sleeve assembly comprises a clamping sleeve fixedly mounted on the side wall of the backrest frame, and a rotating handle rotatably connected to the clamping sleeve, a caulking groove is formed in the clamping sleeve, the clamping sleeve is sleeved outside the backrest connecting piece through the caulking groove, the rotating handle comprises a cam portion and a handle portion, the cam portion is rotatably connected to the clamping sleeve, the handle portion is fixedly connected to the outer wall of the cam portion, and the cam portion is used for abutting against the backrest connecting piece.

Through adopting above-mentioned technical scheme, after the back connecting piece is located to the cutting ferrule cover, break cam portion rotation off with the fingers and thumb through the handle portion, make its and back connecting piece block completely, prevent that the back connecting piece from droing from the back frame in the use, realize safe, swift plug.

Optionally, the backrest connecting piece is rotatably connected to the armrest frame through a connecting assembly, and the connecting assembly is used for enabling the backrest connecting piece to be arranged at intervals with the armrest frame.

Through adopting above-mentioned technical scheme to make the cutting ferrule can be more smooth and easy convenient cover locate outside the back connecting piece.

Optionally, coupling assembling includes grafting round pin, plug bush, division board, the fixed inlaying of grafting round pin is located in the handrail frame, the plug bush is located outside the grafting round pin and is inlayed and locate in the handrail frame, the fixed cover of plug bush outer wall is equipped with the butt board, division board one end fixed mounting is located outside the plug bush and the butt in the butt board at handrail frame and other pot head, the grafting round pin inserts the back connecting piece and rotates to be connected in the back connecting piece.

Through adopting above-mentioned technical scheme to make the stable interval of back connecting piece install on handrail frame.

Optionally, the two sliding seats are arranged on two sides of the seat frame respectively, and two ends of the second guide shaft penetrate through the sliding seats respectively and are fixedly connected to the handrail frame.

By adopting the technical scheme, the sofa and the seat can be changed between multiple postures more stably.

In summary, the present application includes at least one of the following beneficial technical effects:

the requirements of leisure postures and lying postures of different sitting postures are met, the chair can be stopped at any position, and the best use experience of a user is realized; the structure is simple, and the cost is low;

the assembly is convenient and quick.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Fig. 2 is a schematic structural view of the embodiment with one rotating mechanism and a part of the armrest frame hidden.

Fig. 3 is a schematic view of the embodiment in a sitting position.

Fig. 4 is a schematic view of the embodiment in a leisure posture state.

Fig. 5 is a schematic view of the embodiment in a lying position.

Fig. 6 is an exploded schematic view of the rotating mechanism in the embodiment.

Fig. 7 is a schematic structural view of the embodiment with one rotation mechanism, a part of the armrest frame and the backrest frame being hidden.

Figure 8 is a schematic structural view of the ferrule assembly of the embodiment.

Fig. 9 is a partial cross-sectional view of an embodiment at a connection assembly.

Description of reference numerals: 1. a seat frame; 2. a backrest frame; 3. an armrest frame; 4. a rotation mechanism; 5. a sliding mechanism; 6. A seat frame connecting piece; 7. a backrest connector; 8. a connecting shaft; 9. a first guide shaft; 10. a first guide groove; 11. a sliding seat; 12. a second guide shaft; 13. a second guide groove; 14. a front support plate; 15. a rear support plate; 16. a brake fastening mechanism; 17. a brake pad; 18. an adjusting handle; 19. a propping sheet; 20. an elastic member; 21. pushing the sheet; 22. a third guide groove; 23. a card sleeve; 24. rotating the handle; 25. caulking grooves; 26. a limiting strip; 27. a cam portion; 28. a handle portion; 29. a limiting bulge; 30. a connecting assembly; 31. a plug pin; 32. a plug bush; 33. a partition plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses gravity self-adaptation sofa. Referring to fig. 1 and 2, a gravity-adaptive sofa includes a seat frame 1, a backrest frame 2, and two armrest frames 3. The seat frame 1, the backrest frame 2 and the handrail frame 3 are all made of wood. The seat frame 1 and the backrest frame 2 are both positioned between the two handrail frames 3. The back frame 2 is connected to the seat frame 1 via a rotation mechanism 4. One end of the seat frame 1 close to the backrest frame 2 is connected with the armrest frame 3 through a rotating mechanism 4. One end of the seat frame 1 far away from the backrest frame 2 is connected with the armrest frame 3 through a sliding mechanism 5.

Referring to fig. 3, the seat frame 1 is set to be the front end near one pile of the legs of the human body and the rear end near one pile of the back of the human body. In a sitting posture, the seat frame 1 is almost horizontal, and the backrest frame 2 is almost vertical to the seat frame 1. Referring to fig. 3 and 4, when a user sits on the seat frame 1 and leans against the backrest frame 2 to lean backwards, the seat frame 1 moves forwards and the front end of the seat frame 1 moves upwards, and the backrest frame 2 rotates backwards relative to the seat frame 1, so that the sitting posture is changed into a leisure posture. Referring to fig. 4 and 5, if the back rest frame 2 is continuously leaned backwards, the seat frame 1 continuously moves forwards and the front end of the seat frame 1 moves upwards, the back rest frame 2 continuously rotates backwards relative to the seat frame 1, and the leisure self-state is changed into the lying position. Therefore, the sofa can be easily adjusted to any state under the condition of no external power, and the use comfort is improved.

Referring to fig. 2 and 6, in order to make the sofa more adaptive, i.e. the sofa can be stabilized at any angle after leaning, the specific structure is as follows. The two rotating mechanisms 4 are respectively positioned at two sides of the seat frame 1. The rotating mechanism 4 includes a seat frame link 6, a back link 7, a connecting shaft 8, and a first guide shaft 9. The lower end surface of the seat frame 1 is fixedly arranged on the seat frame connecting piece 6. The upper end of the seat frame connecting piece 6 is rotatably connected to the middle part of the backrest connecting piece 7 through a connecting shaft 8. The upper end of the backrest connecting piece 7 is arranged on the side wall of the backrest frame 2 and is rotatably connected with the armrest frame 3. The length of a connecting line between a rotating point A of the backrest connecting piece 7 relative to the armrest frame 3 and a rotating point B of the backrest connecting piece 7 relative to the seat frame connecting piece 6 is 191 mm. The first guide shaft 9 is mounted to the lower end of the backrest connector 7. The seat frame connecting piece 6 is provided with a first guide groove 10 with an upward center, and the first guide groove 10 is arc-shaped. The first guide shaft 9 passes through the first guide groove 10 and is slidably coupled to the first guide groove 10.

Referring to fig. 7, the slide mechanism 5 includes two slide holders 11 and a second guide shaft 12. The two sliding seats 11 are respectively positioned on two sides of the lower end face of the seat frame 1 and fixedly installed on the lower end face of the seat frame 1. The sliding seat 11 is provided with a second guide groove 13 with an inclined upward front end. Both ends of the second guiding axle 12 are fixedly connected to the armrest frame 3, and the second guiding axle 12 passes through the two second guiding grooves 13 and is slidably connected to the second guiding grooves 13.

When the posture of the sofa is changed, the backrest connecting part rotates around the rotating point A, at the moment, the backrest connecting part 7 synchronously drives the backrest frame 2 to rotate, and simultaneously, the backrest connecting part 7 drives the seat frame connecting part 6 to rotate relative to the armrest part. The seat frame 1 is pushed forwards, the seat frame 1 pushes the second guide shaft 12 to slide backwards along the second guide groove 13, the functions that the seat frame 1 is lifted forwards and upwards and the backrest lies backwards are achieved, meanwhile, the front end and the rear end of the second guide groove 13 limit the sliding distance and the front limit and the rear limit, and the limit position of closing and completely opening is achieved.

Referring to fig. 8, a front support plate 14 and a rear support plate 15 are provided between the armrest frames 3 in order to better stabilize the sofa in each state. The front support plate 14 is used for supporting the lower end face of the seat frame 1, and the rear support plate 15 is used for supporting the rear end face of the back frame 2. In the sitting posture, the seat frame 1 abuts against the upper end of the front support plate 14. In the extreme lying position, the back frame 2 abuts against the upper end of the rear support plate 15. Thereby improving the stability of the sofa.

Referring to fig. 2 and 6, in order to allow the sofa to be applied to users of various weights and to allow the user of various weights to stop the sofa in any state when using the sofa, the first guide shaft 9 is provided with a brake fastening mechanism 16. The resistance of the seat frame connecting piece 6 relative to the backrest connecting piece 7 during rotation is adjusted through the brake fastening mechanism 16, so that the requirement of each user on the tightness of the product is adjusted, and the optimal operation smoothness and the proper positioning function are achieved.

Specifically, the brake tightening mechanism 16 includes a brake pad 17 and an adjustment assembly including an adjustment knob 18, a tightening tab 19, an elastic member 20 and a push tab 21. The brake block 17 is located on the side of the seat frame connecting piece 6 departing from the backrest connecting piece 7, and the brake block 17 is rotatably connected to the seat frame connecting piece 6. The brake block 17 is provided with a third guide groove 22 for the first guide shaft 9 to slide. The two abutting sheets 19 are respectively arranged at two sides of the brake sheet 17. The pushing sheet 21 is located on the side of the abutting sheet 19 far away from the backrest connecting piece 7 and far away from the backrest connecting piece 7. The elastic member 20 is a spring, and the elastic member 20 is located at the push plate 21 and faces away from the abutting plate 19 once. The adjustment knob 18 is located on the side of the resilient member 20 facing away from the push plate 21. The first guiding shaft 9 is a screw rod, and the first guiding shaft sequentially passes through the seat frame connecting piece 6, one abutting piece 19, the third guiding groove 22, the other abutting piece 19, the pushing piece 21 and the elastic piece 20 and is in threaded connection with the adjusting handle 18. By screwing the handle, the elastic force of the elastic member 20 against the push piece 21 can be adjusted, thereby achieving resistance when the seat frame connecting member 6 rotates relative to the backrest connecting member 7.

Referring to fig. 7 and 8, the back frame 2 is detachably connected to the back connector 7 by a ferrule assembly. The ferrule assembly includes a ferrule 23 and a turning handle 24. The cutting ferrule 23 is provided with an embedded groove 25 along the length direction, and the embedded groove 25 is communicated with two ends and one side wall of the cutting ferrule 23. The cutting sleeve 23 is positioned at two sides of the opening end of the caulking groove 25 and is turned inwards to form a limiting strip 26. The clamping sleeve 23 is sleeved on the backrest connecting piece 7 through the caulking groove 25, and the backrest connecting piece 7 is limited in the caulking groove 25 through the limiting strip 26. The rotating handle 24 includes a cam portion 27 and a handle portion 28, the cam portion 27 being rotatably coupled to the ferrule 23. The handle part 28 is arranged along the tangential direction of the cam and is fixedly connected with the outer wall of the cam part 27. The cam portion 27 is used to abut against the backrest connection member 7. After the ferrule 23 is fitted on the backrest connector 7, the cam portion 27 is rotated by the handle portion 28 to be completely pressed against the backrest connector 7, so that the backrest frame 2 is stably and fixedly mounted on the backrest connector 7. Safe and quick installation is realized.

In order to enable the clamping sleeve 23 to be sleeved at a predetermined position when the backrest connecting part 7 is sleeved with the clamping sleeve 23, a limiting protrusion 29 for limiting the clamping sleeve 23 is arranged on the side wall of the backrest connecting part 7. When the cutting sleeve 23 is sleeved on the backrest connecting piece 7 and slides to the limit position, the cutting sleeve 23 abuts against the limit bulge 29.

Referring to fig. 7, in order to conveniently and smoothly sleeve the ferrule 23 on the backrest connector 7, the backrest connector 7 is rotatably connected to the armrest frame 3 through a connecting assembly 30, and the connecting assembly 30 is used to arrange the backrest connector 7 and the armrest frame 3 at an interval. Referring to fig. 6 and 9, the connection assembly 30 includes a plug pin 31, a plug bush 32, and a partition plate 33. The plug pin 31 is fixedly embedded in the armrest frame 3, and the plug sleeve 32 is sleeved outside the plug pin 31 and embedded in the armrest frame 3. The fixed cover of the outer wall of the plug bush 32 is provided with a butt plate, one end of the division plate 33 is fixedly installed on the handrail frame 3, and the other end is sleeved outside the plug bush 32 and is butted against the butt plate. The plug pin 31 is inserted into the backrest connection member 7 and is rotatably connected to the backrest connection member 7.

The implementation principle of the gravity self-adaptive sofa provided by the embodiment of the application is as follows:

the sofa can be adjusted at any angle between position of sitting, leisure appearance, the appearance of lying, can stop at any angle, like figure 3 when the people sits in the sofa with the position of sitting, when needs adjustment back angle gesture, only need lightly lean on the back just can realize the regulation of back angle, adjust to like figure 4 position, adjusting wantonly in 36 interior with the position of sitting as basic adjustable range, can realize the demand of different position of sitting leisure appearance and the appearance of lying, and can stop at optional position, realize user's best use experience.

If the user is light, the backrest can not easily apply force to the backrest frame 2 to change the posture of the sofa, and the adjusting handle 18 can be unscrewed to reduce the friction force required to be overcome when the posture of the sofa is changed. If the user is heavy, the backrest frame 2 is easy to move due to error touch, and the adjusting handle 18 can be screwed to increase the friction force to be overcome when the sofa posture is changed, so that the sofa posture can be stopped at any position.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a gravity self-adaptation sofa, includes seat frame (1), back frame (2), handrail frame (3), its characterized in that: backrest frame (2) rotate through rotary mechanism (4) and connect in seat frame (1), just backrest frame (2) rotate to be connected in handrail frame (3), seat frame (1) is close to backrest frame (2) one end and passes through rotary mechanism (4) sliding connection and rotate and connect in handrail frame (3), backrest frame (2) one end is kept away from in seat frame (1) and passes through slide mechanism (5) sliding connection in handrail frame (3), rotary mechanism (4) including be used for seat frame connecting piece (6) be connected with seat frame (1), be used for backrest connecting piece (7) be connected with the back, install on seat frame connecting piece (6) and rotate the axis of rotation of connecting in backrest connecting piece (7), install on backrest connecting piece (7) and sliding connection first guiding axle (9) on seat frame connecting piece (6), slide mechanism (5) including offering second guide way (13) and installing sliding seat (11) on seat frame (1), And the second guide shaft (12) is arranged on the handrail frame (3) and is connected in a second guide groove (13) in a sliding manner, and the second guide groove (13) is obliquely and upwards formed.

2. The gravity-adaptive sofa of claim 1, wherein: the length of a connecting line between the rotating point A of the backrest connecting piece (7) relative to the armrest frame (3) and the rotating point B of the backrest connecting piece (7) relative to the seat frame connecting piece (6) is 18.7 mm-19.3 mm.

3. The gravity-adaptive sofa of claim 1, wherein: be equipped with brake fastening device (16) on first guiding axle (9), brake fastening device (16) are including the brake block (17) of cover locating on first guiding axle (9) and be used for pushing seat frame connecting piece (6) to the adjusting part of back connecting piece (7) through brake block (17), seted up on brake block (17) and supplied gliding third guide way (22) of first guiding axle (9).

4. The gravity-adaptive sofa of claim 3, wherein: brake block (17) one end is rotated and is connected in seat frame connecting piece (6), adjusting part including adjust (18), locate brake block (17) both sides support tight piece (19), be located one of them support tight piece (19) and adjust elastic component (20) between (18), seat frame connecting piece (6), one support tight piece (19), third guide way (22), another support tight piece (19), elastic component (20) are passed in proper order in first guiding axle (9), and threaded connection adjusts in (18).

5. The gravity adaptive sofa of claim 4, wherein: a pushing sheet (21) is arranged between the elastic piece (20) and the abutting sheet (19), the pushing sheet (21) is sleeved outside the first guide shaft (9), and the elastic piece (20) pushes the abutting sheet (19) to move relative to the brake sheet (17) through the pushing sheet (21).

6. The gravity-adaptive sofa of claim 1, wherein: the backrest frame (2) is detachably connected to the backrest connecting piece (7) through a clamping sleeve component.

7. The gravity adaptive sofa of claim 6, wherein: the clamp sleeve component comprises a clamp sleeve (23) fixedly mounted on the side wall of the backrest frame (2) and a rotating handle (24) rotatably connected onto the clamp sleeve (23), wherein a caulking groove (25) is formed in the clamp sleeve (23), the clamp sleeve (23) is sleeved outside the backrest connecting piece (7) through the caulking groove (25), the rotating handle (24) comprises a cam portion (27) and a handle portion (28), the cam portion (27) is rotatably connected onto the clamp sleeve (23), the handle portion (28) is fixedly connected onto the outer wall of the cam portion (27), and the cam portion (27) is used for abutting against the backrest connecting piece (7).

8. The gravity-adaptive sofa of claim 7, wherein: backrest connecting piece (7) rotate through coupling assembling (30) and connect in handrail frame (3), coupling assembling (30) are used for making backrest connecting piece (7) and handrail frame (3) be the interval setting.

9. The gravity-adaptive sofa of claim 8, wherein: coupling assembling (30) are including grafting round pin (31), plug bush (32), division board (33), grafting round pin (31) are fixed to be inlayed and are located handrail frame (3), plug bush (32) cover is located grafting round pin (31) and is just inlayed and locate handrail frame (3) in, the fixed cover of plug bush (32) outer wall is equipped with the butt joint board, division board (33) one end fixed mounting is in handrail frame (3) and other pot head and is located plug bush (32) outer and butt in the butt joint board, plug bush (31) insert back connecting piece (7) and rotate and connect in back connecting piece (7).

10. The gravity-adaptive sofa of claim 1, wherein: the two sliding seats (11) are arranged and are respectively positioned on two sides of the seat frame (1), and two ends of the second guide shaft (12) respectively penetrate through the sliding seats (11) and are fixedly connected to the handrail frame (3).