WO2011124027A1

WO2011124027A1 - Chair furniture with free sliding-rolling linkage mechanism

Info

Publication number: WO2011124027A1
Application number: PCT/CN2010/071616
Authority: WO
Inventors: 林景恒
Original assignee: Lin Jingheng
Priority date: 2010-04-07
Filing date: 2010-04-07
Publication date: 2011-10-13

Abstract

A chair furniture with a free sliding-rolling linkage mechanism includes a bracket (1), a backrest (2) and a seat plate (3) both mounted on the bracket (1). The backrest (2) and the seat plate (3) are hinged to each other, and the backrest (2) is pivotally connected to a fixed shaft (4) on the bracket (1). At least one rolling means for adjusting the forward and backward movement of the seat plate (3) and a guiding means matching with the rolling means are disposed between the seat plate (3) and the bracket (1). The chair furniture can effectively reduce the friction force between the backrest and the seat plate when the angle between them is adjusted, so as to adjust it more conveniently and flexibly and avoid the damage of the parts.

Description

Seat furniture with free sliding and rolling linkage mechanism To

技术领域Technical field

The utility model belongs to the technical field of furniture structure, in particular to a seat furniture with a free sliding and rolling linkage mechanism.

背景技术Background technique

At present, the well-known seat furniture adjusting mechanism is composed of a link mechanism with a complicated structure. Due to the complex structure of the linkage mechanism, the linkage mechanism is heavy, and high-strength materials are required to be used in a large amount, which limits the use range of the seat furniture and increases the production cost at the same time. In addition, the adjustment of the general linkage mechanism requires manual control of the tilt angle, and the convenience of use needs to be further enhanced.

Chinese utility model patent CN97211832.2, named as the backrest stepless adjustment device of the backrest chair, discloses a backrest stepless adjustment device of the backrest chair, which is composed of a sliding rod, a sliding sleeve and a hinge sleeve, and is made into an angular shape. The sliding rod can slide in the upper hole of the sliding sleeve. The sliding sleeve and the hinge sleeve are connected by a hinge. After being installed on the backrest, the pitch angle of the backrest can be automatically adjusted steplessly. Although this technology has changed the traditional linkage mechanism with complex structure, it adopts a sliding rod and sliding sleeve matching structure, and its frictional force is relatively large, making the angle adjustment between the backrest and the seat plate awkward, and the long-term large friction force will also be reduced. Cause greater damage to components.

实用新型内容Utility model content

Aiming at the disadvantages of the prior art, the purpose of the present invention is to provide a seat furniture with a free sliding and rolling linkage mechanism that can effectively reduce the friction of the angle adjustment between the backrest and the seat plate and has a simple structure.

In order to achieve the above purpose, the technical solution of the present invention is: a seat furniture with a free sliding and rolling linkage mechanism, comprising a bracket and a backrest and a seat plate arranged on the bracket, the backrest and the seat plate are hinged to each other, and the backrest and the seat plate are hinged to each other. The fixed shaft arranged on the bracket is movably connected, and at least one rolling structure for adjusting the front and back movement of the seat plate and a sliding guide structure matched with the rolling structure are also arranged between the seat plate and the bracket.

In this solution, when the user leans on the backrest or sits up in front of the seat plate, the relative sliding of the rolling structure and the sliding guide structure will achieve the effect of freely adjusting the balance angle of the backrest and the seat plate. Due to the matching adjustment structure of the rolling structure and the sliding guide structure, the friction force during free adjustment can be effectively reduced, making the adjustment more portable and flexible, and avoiding damage to the device. The friction force of the sliding rod and sliding sleeve matching method adopted in the prior art is sliding friction, which is far greater than the rolling friction of the present solution.

In order to guide the sliding rolling structure more smoothly, the sliding guide structure is designed as a curved sliding guide structure. Since the backrest and the seat plate are dynamically adjusted, the hinge point of the backrest and the seat plate moves in a curve around the fixed axis of the backrest and the bracket, so the back and forth movement of the seat plate will also follow a gentle curve trajectory. The sliding structure can make the guide sliding structure and the rolling structure bear less pressure, so it can effectively reduce the friction between the two. The sliding guide structure can also be designed as a linear guide sliding structure.

The sliding structure is arranged on the seat plate, and the rolling structure is arranged on the bracket.

As one of the structures, the sliding guide structure is a slide rail. The rolling structure includes a roller matched with the slide rail, a shaft screw connected with the roller, and a fixed shaft screw roller frame, and the roller frame is fixed on the bracket.

In order to prevent the sliding guide structure from deviating from the moving track path, the roller frame is also provided with a limit rod for limiting the longitudinal position of the sliding guide structure.

As another structure, the sliding guide structure is a double slide rail structure, and the rolling structure is a double roller matched with a double slide rail.

As another structure, the sliding guide structure is a trough-shaped slide rail structure, and the rolling structure is a single roller structure.

Further, the front and rear ends of the sliding guide structure are provided with a limit structure for limiting the rolling structure, and the limit structure can limit the angle between the backrest and the seat plate, and is designed according to ergonomics to be suitable for people to lie down. Or sit upright at the best angle.

Specifically, the bracket has a door-shaped structure, and the fixed shaft movably connected with the backrest and the bracket is located at the upper rear corner of the door-shaped structure.

As an alternative structure, the rolling structure can also be arranged on the seat plate, and the sliding guide structure is arranged on the bracket.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

The utility model can automatically adjust the inclination and height of the seat user's body position through the seat back and the seat plate, so as to provide the user with a comfortable sitting posture. At the same time, the greatly simplified structure of the chair and furniture linkage mechanism provides a prerequisite for controlling production costs and controlling product quality.

附图说明Description of the drawings

Figures 1a, 1b, and 1c are schematic diagrams of a state where the angle of the seat furniture of embodiment 1 is freely adjusted;

Fig. 2 is an enlarged schematic diagram of part D in Fig. 1b;

Fig. 3 is a structural schematic diagram of the rolling structure and the sliding guide structure of Embodiment 1;

Fig. 4 is a schematic cross-sectional structure diagram of A-A in Fig. 3;

FIG. 5 is a schematic structural diagram of the rolling structure and the sliding guide structure of Embodiment 2;

Fig. 6 is a schematic cross-sectional structure diagram of B-B in Fig. 5;

FIG. 7 is a structural schematic diagram of the rolling structure and the sliding guide structure of Embodiment 3;

Fig. 8 is a schematic cross-sectional structure diagram of C-C in Fig. 7.

具体实施方式 Detailed ways

Hereinafter, the present utility model will be described in detail in conjunction with the embodiments and the drawings.

Example 1

As shown in Figures 1a, 1b, 1c, Figure 2 and Figure 3, the utility model discloses a seat furniture with a free sliding and rolling linkage mechanism, including a bracket 1 and a backrest 2 and a seat plate 3 arranged on the bracket 1 , The backrest 2 and the seat plate 3 are hinged to each other, the backrest 2 is movably connected to the fixed shaft 4 provided on the bracket 1, and at least one seat plate 3 for adjusting the seat plate 3 to move forward and backward is provided between the seat plate 3 and the bracket 1. The rolling structure and the sliding guide structure matched with the rolling structure.

In this embodiment, the number of the rolling structure and the sliding guide structure is two, and they are distributed at the two ends between the seat plate 3 and the bracket 1. The backrest 2 and the fixed shaft 4 on the bracket 1 are fixed hinge links, and the backrest 2 and the seat plate 3 are connected by a common hinge, the sliding guide structure is arranged on the seat plate 3, and the rolling structure is arranged on the bracket 1.

Of course, the number of the rolling structure and the sliding guide structure can also be one, and they are distributed in the middle position between the seat plate 3 and the bracket 1.

The realization principle is: when the user sits on the seat, the body position changes, resulting in a change in the center of gravity, which provides power for pushing the backrest 2 or the seat plate 3. When the user leans back, the back is forced to the backrest 2, the center of gravity moves backward, the thrust acts on the backrest 2, the backrest 2 tilts backward, and the seat plate 3 is pushed forward through the hinge at the same time. After the body movement stops, the center of gravity reaches one With the new balance, the backrest 2 and the seat plate 3 will stop moving, achieving the effect of free adjustment. When the user sits forward, the back leaves the backrest 2, the center of gravity moves forward, gravity acts on the seat plate 3, the seat plate 3 slides backward along the sliding guide structure under gravity, and pushes the backrest 2 to rotate forward through the hinge. After the posture movement stops, the center of gravity reaches a new balance, the seat plate 3 and the backrest 2 will stop moving, achieving the effect of free adjustment.

In this embodiment, as shown in Figures 3 and 4, the sliding guide structure is a slide rail 5, and the rolling structure includes a roller 6 matched with the slide rail 5, a shaft screw 7 connected with the roller 6 and a fixed shaft screw 7 rollers The frame 8 is fixed on the frame 1 with the roller frame 8. The roller 5 can roll back and forth between the end point A and the end point B of the slide rail 4. When the pulley is at the end point A, it is the normal sitting position of the seat; when the pulley is at the end point B, it is the maximum reclining position of the seat, that is, the recliner position.

Further, the front and rear ends of the sliding guide structure can also be provided with a limit structure for limiting the rolling structure.

In order to guide the sliding rolling structure more smoothly, the sliding guide structure is designed as a curved sliding guide structure. Since the backrest and the seat plate are dynamically adjusted, the hinge point of the backrest and the seat plate moves in a curve around the fixed axis of the backrest and the bracket, so the back and forth movement of the seat plate will also follow a gentle curve trajectory. The sliding structure can make the guide sliding structure and the rolling structure bear less pressure, so it can effectively reduce the friction between the two. In this embodiment, the slide rail 4 has a curved structure. In addition, the slide rail 4 can also have a linear structure.

In order to prevent the sliding guide structure from deviating from the moving track path, the roller frame 8 is also provided with a limit rod 9 for limiting the longitudinal position of the sliding guide structure. In addition, the bracket 1 has a door-shaped structure, and the fixed shaft 4 movably connected to the backrest 2 and the bracket 1 is located at the upper rear corner of the door-shaped structure.

Example 2

As a modified structure of embodiment 1, this embodiment is similar to the structure of embodiment 1, as shown in Figures 5 and 6, the difference is that the sliding guide structure is a double slide rail structure 10, and the rolling structure is a double rail structure. The double roller 11 is matched with the slide rail structure, and the double pulley 11 rolls on the double slide rail structure 10. The double roller 11 is fixed to the bracket 1 by the shaft screw 12 and the connecting rod 13.

Example 3

As another modified structure of embodiment 1, the structure of this embodiment is similar to that of embodiment 1, as shown in FIG. 7 and FIG. 8. The difference is that the sliding guide structure is a trough-shaped sliding rail structure 14, and the rolling structure It is a roller 15 which is placed in the trough-shaped slide rail structure 14 and rolls along its track.

Example 4

As another modified structure of Embodiment 1, the structure of this embodiment is similar to that of Embodiment 1. The rolling structure can also be provided on the seat plate, and the sliding guide structure is provided on the bracket.

Claims

A seat furniture with a free sliding and rolling linkage mechanism, comprising a bracket, a backrest and a seat plate arranged on the bracket, the backrest and the seat plate are hinged to each other, and the backrest is movably connected with a fixed shaft arranged on the bracket, and is characterized in that At least one rolling structure for adjusting the front and back movement of the seat plate and a sliding guide structure matched with the rolling structure are also provided between the seat plate and the bracket.
The seat furniture with a free sliding-roll linkage mechanism according to claim 1, wherein the sliding guide structure is a curved or linear sliding guide structure.
The seat furniture with a free sliding-rolling linkage mechanism according to claim 1 or 2, wherein the sliding guide structure is provided on the seat plate, and the rolling structure is provided on the bracket.
The seat furniture with a free sliding-rolling linkage mechanism according to claim 3, wherein the sliding guide structure is a slide rail, and the rolling structure includes a roller matched with the slide rail, a shaft screw connected with the roller, and a fixed shaft Screw roller frame, the roller frame is fixed on the bracket.
The seat furniture with a free sliding and rolling linkage mechanism according to claim 4, wherein the roller frame is further provided with a limit rod for limiting the longitudinal position of the sliding guide structure.
The seat furniture with a free sliding and rolling linkage mechanism according to claim 3, wherein the sliding guide structure is a double slide rail structure, and the rolling structure is a double roller matched with the double slide rails.
The seat furniture with a free sliding-rolling linkage mechanism according to claim 3, wherein the sliding guide structure is a trough-shaped sliding rail structure, and the rolling structure is a single-roller structure.
The seat furniture with free sliding and rolling linkage mechanism according to claim 1 or 2, characterized in that the front and rear ends of the sliding guide structure are provided with limit structures for limiting the rolling structure. To
The seat furniture with a free sliding-roll linkage mechanism according to claim 1 or 2, wherein the bracket is a door-shaped structure, and the fixed shaft movably connected to the backrest and the bracket is located at the upper rear end of the door-shaped structure at the corner.
The seat furniture with a free sliding-rolling linkage mechanism according to claim 1 or 2, wherein the rolling structure is provided on the seat plate, and the sliding guide structure is provided on the bracket.