CN218605842U

CN218605842U - Seat cushion hardness adjusting mechanism and seat

Info

Publication number: CN218605842U
Application number: CN202222705285.1U
Authority: CN
Inventors: 冯元峰; 曹继忠; 孔庆科; 高俊东; 王平
Original assignee: Kuka Home Co Ltd
Current assignee: Kuka Home Co Ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-03-14
Anticipated expiration: 2032-10-13

Abstract

The application discloses seatpad hardness adjustment mechanism and thing to sit on includes: a seat frame comprising a frame structure composed of a left side frame, a right side frame, a front frame and a rear frame, wherein the front frame and the rear frame are connected between the left side frame and the right side frame; the adjusting mechanism comprises a driving piece and a connecting rod assembly, the driving piece is connected with the seat frame, one end of the connecting rod assembly is connected with the output end of the driving piece, and the other end of the connecting rod assembly is connected with the front frame; a support member connected between the front frame and the rear frame; the adjusting mechanism is arranged in a manner that the driving piece drives the front frame to move close to or far away from the rear frame through the connecting rod assembly. The utility model provides a seatpad hardness adjustment mechanism and thing to sit on can satisfy different use groups to the soft or hard travelling comfort demand of thing to sit on.

Description

Seat cushion hardness adjusting mechanism and seat

Technical Field

The application relates to the technical field of home furnishing, in particular to a seat cushion hardness adjusting mechanism and a seat.

Background

The sofa is one of essential seats in modern home life, and the sofa main function is to provide sitting and rest for people, and ordinary sofa all can place in the sitting room, provides convenience for owner and guest's leisure and amusement. The typical structure of the existing sofa is a soft bag (containing sponge and filled silk floss) and a seat spring, and the combination of the soft bag and the seat spring basically determines the hardness of the sofa cushion, namely the hardness which people feel when sitting on the sofa cushion. Usually expressed using force/displacement, i.e. an indicator of stiffness. The sofa seat spring is a main influence factor of hardness perception, and among all parameters of the sofa seat spring, the height of the sofa seat spring which is arched upwards plays a decisive role. Under the condition of not changing the material and thickness of the sofa spring, the hardness of the sofa can be influenced by changing the shape, and the higher the camber of the sofa is, the softer the seat cushion is, and the better the resilience is. The lower the camber of the sofa, the stiffer the sofa and the weaker the rebound.

The hardness of the existing sofa can not be changed after the system is designed, different consumers have different requirements on the hardness of the sofa, old people want the sofa not to be too soft, and young people want the sofa to be soft. The hardness of the existing sofa is designed through seat cushion sponge and seat springs, and the hardness cannot be changed after the hardness design is completed.

Based on the above problems, there is a need to develop a new seat cushion hardness adjusting mechanism and a seat, so that the hardness of the sofa can be adjusted to meet the comfort requirements of different users.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a seatpad hardness adjustment mechanism and thing to sit on, can adjust the soft or hard degree of thing to sit on, satisfies the travelling comfort demand of different use groups.

In a first aspect, the present application provides a seat cushion hardness adjusting mechanism, comprising: a seat frame comprising a frame structure composed of a left side frame, a right side frame, a front frame and a rear frame, wherein the front frame and the rear frame are connected between the left side frame and the right side frame; the adjusting mechanism comprises a driving piece and a connecting rod assembly, the driving piece is connected with the seat frame, one end of the connecting rod assembly is connected with the output end of the driving piece, and the other end of the connecting rod assembly is connected with the front frame; a support member connected between the front frame and the rear frame; the adjusting mechanism is arranged in a manner that the driving piece drives the front frame to move close to or far away from the rear frame through the connecting rod assembly.

Through adopting above-mentioned technical scheme, the front truck can be close to or keep away from the back frame and remove, drives support piece's shape change from this, and support piece's shape change has changed support piece's support hardness to can satisfy different users to the user demand of seatpad soft or hard through the support hardness of adjusting the support frame.

With reference to the first aspect, in a further aspect, a cross shaft is linked between the left side frame and the right side frame, and the link assembly is connected to the cross shaft.

Through adopting above-mentioned technical scheme, the cross axle can be in order to strengthen the intensity of seat frame and can rotate the support to link assembly again, can also adjust link assembly coupling position on the cross axle as required.

In combination with the first aspect, in a further aspect, the link assembly includes a first link and a second link hinged to each other, an end portion of the first link far away from the second link is hinged to the driving member, and an end portion of the second link far away from the first link is connected to the front frame.

Through adopting above-mentioned technical scheme, link assembly can realize the drive of seatpad hardness adjustment mechanism through lever principle and adjust, and practical application can select laborsaving lever or economize apart from the realization of lever in order to satisfy the function according to the driving piece of difference.

With reference to the first aspect, in a further aspect, the first link is L-shaped.

By adopting the technical scheme, the two end points of the first connecting rod are the same in steering, so that the space layout of the driving piece and the connecting rod assembly is facilitated, the space occupation below the supporting piece is reduced, and the influence on the comfort of a user caused by the fact that the supporting piece touches the adjusting mechanism when the user sits and deforms is reduced.

In combination with the first aspect, in a further scheme, sliding grooves are formed in the left side frame and the right side frame, the connecting rod assembly is provided with a sliding shaft, and when the sliding shaft slides in the sliding grooves, the front frame moves close to or away from the rear frame.

By adopting the technical scheme, the connecting rod assembly can slide relative to the left side frame and the right side frame, and the connecting rod assembly drives the front frame to move in the sliding process, so that the distance between the front frame and the rear frame is changed, the supporting shape of the supporting piece is further changed, and the soft and hard adjustment of the supporting piece is realized.

With reference to the first aspect, in a further aspect, the left side frame and the right side frame are provided with sliding grooves, the front frame is provided with sliding shafts, and when the sliding shafts slide in the sliding grooves, the front frame moves closer to or away from the rear frame.

By adopting the technical scheme, the connecting rod assembly pushes the front frame to slide relative to the left side frame and the right side frame, so that the distance between the front frame and the rear frame is changed, the supporting shape of the supporting piece is changed, and the hardness of the supporting piece is adjusted.

In combination with the first aspect, in a further aspect, the driving member is an electric push rod, a motor of the electric push rod is connected to the seat frame, and a push rod of the electric push rod is hinged to one end of the connecting rod assembly.

Through adopting above-mentioned technical scheme, electric putter's linear drive realizes link assembly's rotation to conveniently adjust the distance between front stall and the after-poppet, realize support piece's hardness and adjust.

In combination with the first aspect, in a further scheme, the driving member is a motor, a worm is connected to an output end of the motor, and a tooth structure meshed with the worm is arranged at one end of the connecting rod assembly.

Through adopting above-mentioned technical scheme, adopt the transmission structure of worm pair to realize link assembly's rotation to adjust the distance between front truck and the after-poppet, realize support piece's softness and hardness and adjust. The worm pair transmission mechanism has the advantages of having a self-locking function and preventing the position of the front frame from changing under the action of the force of the supporting piece.

In combination with the first aspect, in a further aspect, the left side frame and the right side frame are slidably connected to the rear frame, the driving member is connected to the rear frame, and when the driving member drives the link assembly to rotate, the link assembly pushes the left side frame, the right side frame, and the front frame to slide relative to the rear frame.

Through adopting above-mentioned technical scheme, left side frame, right side frame and front truck are fixed as an organic whole and slide, and under the direction of left side frame and right side frame, the front truck slides more steadily, has reduced the skew jamming phenomenon that leads to because the unbalance of power among the overall structure sliding process.

In a second aspect, the present application provides a seating apparatus comprising a seat frame and a seat cushion firmness adjustment mechanism as described above connected to the seat frame.

By adopting the technical scheme, the seat can be used for carrying out personalized adjustment on the hardness according to the requirements of different users, so that the seat is wider in applicable population and better in experience.

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

1. this application seatpad hardness adjustment mechanism can change support piece's support hardness through adjusting the front stall position, satisfies user's different soft or hard user demand from this.

2. This application seatpad hardness adjustment mechanism, simple structure is compact, reduces the space and occupies, and drive structure is more reliable.

3. This application seatpad hardness adjustment mechanism has self-locking function, makes the regulation more reliable and more stable.

4. This application thing to sit on to carry out the individualized regulation of hardness of software according to different users' demand, the travelling comfort is better, and applicable crowd is wider.

Drawings

FIG. 1 is a schematic view showing the structure of a seat cushion firmness adjusting mechanism according to the present application;

FIG. 2 is a schematic view of the seat spring of the seat cushion firmness adjustment mechanism of the present application;

FIG. 3 is a schematic bottom view of the seat cushion firmness adjustment mechanism of the present application;

FIG. 4 is a side view of the seat cushion firmness adjusting mechanism of the present application;

FIG. 5 is a schematic view of another angle of the seat cushion firmness adjustment mechanism of the present application;

fig. 6 is a schematic structural view of another embodiment of the seat cushion hardness adjustment mechanism according to the present application.

Reference numerals:

1. a seat frame; 11. a left side frame; 12. a front frame; 13. a right side frame; 14. a rear frame; 15. a horizontal axis; 16. a slide shaft; 17. a chute; 18. coupling; 2. a seat spring; 3. an adjustment mechanism; 31. an electric push rod; 311. angle iron; 312. a motor; 313. a push rod; 32. a connecting rod assembly; 321. a first link; 322. a second link.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 as a specific case by those skilled in the art.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

The first embodiment is as follows:

referring to fig. 1, a structure of a seat cushion hardness adjusting mechanism is disclosed. The seat cushion hardness adjusting mechanism comprises a seat frame 1, an adjusting mechanism 3 and a supporting piece, wherein the seat frame 1 is in a rectangular frame structure consisting of a left side frame 11, a right side frame 13, a front frame 12 and a rear frame 14, and the front frame 12 and the rear frame 14 are connected between the left side frame 11 and the right side frame 13. The supporting member is connected between the front frame 12 and the rear frame 14, the supporting member in this embodiment is a seat spring 2, and two ends of the seat spring 2 are respectively fixedly connected to the front frame 12 and the rear frame 14.

Referring to fig. 2, the adjusting mechanism 3 includes a driving member connected to the seat frame 1 and a connecting rod assembly 32, one end of the connecting rod assembly 32 is connected to an output end of the driving member, and the other end of the connecting rod assembly 32 is connected to the front frame 12. The driving member in this embodiment is an electric push rod 31, a motor 312 of the electric push rod 31 is fixed on the left side frame 11 through an angle iron 311, a push rod 313 of the electric push rod 31 is hinged to one end of a connecting rod assembly 32, and the other end of the connecting rod assembly 32 is fixedly or rotatably connected to the front frame 12. A cross shaft 15 is further connected between the left side frame 11 and the right side frame 13, the cross shaft 15 is rotatably or fixedly connected with the left side frame 11 and the right side frame 13, and the connecting rod assembly 32 is rotatably connected with the cross shaft 15. When the cross shaft 15 is rotatably connected with the left side frame 11 and the right side frame 13, the connecting rod assembly 32 can be fixedly connected with the cross shaft 15 through welding and the like, the rotation is realized through the cross shaft 15, a shaft sleeve is connected between the cross shaft 15 and the left side frame 11 and the right side frame 13, and the shaft sleeve is made of POM materials and is convenient to rotate smoothly.

Referring to fig. 3, the connecting rod assembly 32 includes a first connecting rod 321 and a second connecting rod 322 hinged to each other, an end of the first connecting rod 321 away from the second connecting rod 322 is hinged to the push rod 313, and an end of the second connecting rod 322 away from the first connecting rod 321 is fixedly or rotatably connected to the front frame 12. The first link 321 is an L-shaped structure, and corners of the first link 321 are fixedly or rotatably connected with the transverse shaft 15. The sliding shaft 16 is fixedly connected to the second connecting rod 322, the sliding slots 17 are formed in the left side frame 11 and the right side frame 13, when the electric push rod 31 works, the push rod 313 pushes the first connecting rod 321 to rotate, the first connecting rod 321 drives the second connecting rod 322 to rotate, the second connecting rod 322 slides along the sliding slots 17 and pushes the front frame 12 to move back and forth, and the sliding shaft 16 can also be fixed on the front frame 12.

When the push rod 313 extends to push the first link 321 to rotate counterclockwise as shown in fig. 3, the first link 321 drives the second link 322 to rotate clockwise, and the second link 322 pushes the front frame 12 to move forward along the sliding slot 17. When the push rod 313 pulls the first link 321 to rotate clockwise when being shortened, the first link 321 drives the second link 322 to rotate counterclockwise, and the front frame 12 moves backward along the sliding slot 17 under the pulling of the seat spring 2. In specific application, the driving part can also be a servo motor, a shaft of the servo motor is connected with a worm, a worm wheel is connected with the end part of the first connecting rod 321 connected with the worm, or a tooth-shaped structure meshed with the worm is arranged at the end part of the first connecting rod 321 to form a worm pair transmission structure, the driving principle is similar to that of the electric push rod 31, and the description is omitted.

Referring to fig. 4, seat spring 2 is fixedly connected between front frame 12 and rear frame 14, and seat spring 2 forms an upwardly arched structure for supporting the weight of the occupant.

Referring to fig. 5, the same connecting rod assembly 32 is also disposed at the position of the right side frame 13 and at the position of the left side frame 11, the connecting structure of the connecting rod assembly 32 is the same as the connecting structure of the connecting rod assembly 32 at the position of the left side frame 11, the connecting rod assembly 32 is pivoted to the horizontal shaft 15, and one end of the connecting rod assembly 32 is connected to the front frame 12.

The working process and principle of the embodiment are as follows: referring to the position direction shown in fig. 3, when the driving member drives the first link 321 to rotate counterclockwise, the first link 321 pushes the second link 322 to rotate clockwise, and at this time, the second link 322 moves forward and pushes the front frame 12 to move forward along the sliding slot 17. When the front frame 12 moves forward, the seat spring 2 is pulled to move forward, the center position of the seat spring 2 moves downward when the span of the seat spring 2 is increased, as shown in fig. 4, the height of the arching of the seat spring 2 is reduced, the deformation amount of the seat spring 2 is reduced, the hardness of the seat spring 2 is increased, and thus the hardness adjustment of the seat spring 2 is realized. When the driving member drives the first link 321 to rotate clockwise, the first link 321 pulls the second link 322 to rotate counterclockwise, and at this time, the front frame 12 moves backward along the sliding slot 17 under the pulling force of the seat spring 2 and the driving of the second link 322. When the front frame 12 moves backwards, the seat spring 2 is pushed to arch upwards, the central position of the seat spring 2 moves upwards, the arch height of the seat spring 2 is increased, the deformation amount of the seat spring 2 is increased, the hardness of the seat spring 2 is reduced, and therefore the softness adjustment of the seat spring 2 is achieved.

Example two:

referring to fig. 6, the difference from the first embodiment is that the first link 321 of the two link assemblies 32 of the left and right side frames is connected with the coupling 18 between the ends far away from the second link 322, so that the driving member synchronously drives the two link assemblies 32 to rotate. In the actual test process, smooth rotation can be realized without adding the coupling 18, and the structure serves as another optimized embodiment.

Example three:

the embodiment discloses a piece of seating furniture, which comprises a chair frame, a seat cushion hardness adjusting mechanism in the first embodiment or the second embodiment and a soft sofa bag arranged on the seat cushion hardness adjusting mechanism, wherein the seat cushion hardness adjusting mechanism is connected to the chair frame and used for supporting the weight of a passenger. The embodiment also comprises an operation device for operating the start and stop of the driving piece so as to adjust the moving position of the front frame 12 and realize the soft and hard adjustment of the seat spring 2.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that the present invention can be modified, replaced and modified in many ways without departing from the spirit and scope of the present invention.

Claims

1. A seat cushion hardness adjustment mechanism, comprising:

the seat frame (1) comprises a frame-shaped structure consisting of a left side frame (11), a right side frame (13), a front frame (12) and a rear frame (14), wherein the front frame (12) and the rear frame (14) are connected between the left side frame (11) and the right side frame (13);

the adjusting mechanism (3) comprises a driving piece and a connecting rod assembly (32), the driving piece is connected with the seat frame (1), one end of the connecting rod assembly (32) is connected with the output end of the driving piece, and the other end of the connecting rod assembly (32) is connected with the front frame (12);

a support connected between the front frame (12) and the rear frame (14);

wherein the adjusting mechanism (3) is arranged in such a way that the driving piece drives the front frame (12) to move close to or away from the rear frame (14) through a connecting rod assembly (32).

2. The cushion firmness adjustment mechanism according to claim 1, wherein a cross shaft (15) is linked between the left side frame (11) and the right side frame (13), and the connecting rod assembly (32) is connected with the cross shaft (15).

3. The cushion firmness adjusting mechanism according to claim 2, wherein the link assembly (32) comprises a first link (321) and a second link (322) which are hinged to each other, wherein the end of the first link (321) remote from the second link (322) is hinged to the driving member, and wherein the end of the second link (322) remote from the first link (321) is connected to the front frame (12).

4. The cushion firmness adjustment mechanism according to claim 3, wherein the first link (321) is L-shaped.

5. The seat cushion hardness adjusting mechanism according to claim 1, wherein the left side frame (11) and the right side frame (13) are provided with slide grooves (17), the connecting rod assembly (32) is provided with a slide shaft (16), and the front frame (12) moves closer to or away from the rear frame (14) when the slide shaft (16) slides in the slide grooves (17).

6. The seat cushion hardness adjusting mechanism according to claim 1, wherein the left side frame (11) and the right side frame (13) are provided with slide grooves (17), the front frame (12) is provided with a slide shaft (16), and the front frame (12) moves closer to or away from the rear frame (14) when the slide shaft (16) slides in the slide grooves (17).

7. The seat cushion hardness adjusting mechanism according to claim 1, wherein the driving member is an electric push rod (31), a motor (312) of the electric push rod (31) is connected with the seat frame (1), and a push rod (313) of the electric push rod (31) is hinged with one end of the connecting rod assembly (32).

8. The seat cushion hardness adjusting mechanism according to claim 1, wherein the driving member is a motor (312), a worm is connected to an output end of the motor (312), and one end of the connecting rod assembly (32) is provided with a tooth structure meshed with the worm.

9. The cushion hardness adjusting mechanism according to claim 1, wherein the left side frame (11) and the right side frame (13) are slidably connected with the rear frame (14), the driving member is connected to the rear frame (14), and when the driving member drives the connecting rod assembly (32) to rotate, the connecting rod assembly (32) pushes the left side frame (11), the right side frame (13) and the front frame (12) to slide relative to the rear frame (14).

10. A seat comprising a seat frame and a cushion firmness adjusting mechanism according to any of claims 1 to 9 attached to the seat frame.