CN113287893A

CN113287893A - Seat support and seat in zero back clearance of low seat height

Info

Publication number: CN113287893A
Application number: CN202110603973.4A
Authority: CN
Inventors: 李晓鸿; 李元坤; 陈晨; 雷晓春; 吕战征
Original assignee: Remacro Machinery and Technology Wujiang Co Ltd
Current assignee: Ruimai Technology Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-08-24
Anticipated expiration: 2041-05-31
Also published as: CN113287893B

Abstract

The invention discloses a seat support with low seat height and zero backrest clearance and a seat, which comprise a base, a linkage mechanism, linkage side plates and a backrest mechanism, wherein the backrest mechanism is respectively and rotatably connected with the linkage side plates and the linkage mechanism; a seat frame mounting surface is arranged on the outer side surface of the linkage side plate, the height of the plane where the seat frame mounting surface is located is lower than the upper edge of the linkage side plate, and the distance H from the highest point of the seat frame mounting surface to the bottom surface of the base is 16cm-19 cm; the backrest mechanism comprises a backrest mounting part and a backrest linkage part, when the linkage mechanism and the linkage side plates move, the backrest mechanism drives the backrest frame to rotate, and the tail end edge of the backrest frame moves forwards or is kept on a vertical plane where the initial position of the backrest frame is located. The seat height of the seat is reduced, the design requirements of a low-seat-height functional sofa or the seat can be met, the comfort is improved, the backrest mechanism can be placed against the wall without influencing the normal extension and contraction of the seat support.

Description

Seat support and seat in zero back clearance of low seat height

Technical Field

The invention belongs to the technical field of seats, and particularly relates to a seat support with a low seat height and zero backrest clearance and a seat.

Background

At present, multifunctional sofa seats are widely used. The existing functional sofa mechanical stretching device has the advantages that the seat height is generally higher, so that the feet of a user cannot touch the ground in the using process, the legs of the user feel fatigue after the user has used for a long time, and the comfort of the sofa is affected. The overall volume of the sofa is large, the sofa is not coordinated with the home environment, and the appearance and the use development of the functional sofa are influenced. The high height of the seat can also cause the thickness of the sofa cushion to be reduced, and the comfort of the sofa is affected. The existing functional sofa is limited by an extension structure, and an extension space needs to be reserved behind a backrest, so that the functional sofa cannot be placed against a wall.

Disclosure of Invention

The invention aims to solve the problems that the seat height of the existing seat is generally higher and cannot be placed against a wall.

In order to achieve the purpose, the invention provides a seat support with low seat height and zero backrest gap, which comprises a base, a linkage mechanism, linkage side plates and a backrest mechanism, wherein the linkage mechanism is rotationally connected between the base and the linkage side plates, and the backrest mechanism is rotationally connected with the linkage side plates and the linkage mechanism respectively;

a seat frame mounting surface is arranged on the outer side surface of the linkage side plate, the height of the plane where the seat frame mounting surface is located is lower than the upper edge of the linkage side plate, and the distance H from the highest point of the seat frame mounting surface to the bottom surface of the base is 16cm-19 cm;

the backrest mechanism comprises a backrest installation part and a backrest linkage part, the backrest installation part is rotationally connected with the linkage side plate, two ends of the backrest linkage part are rotationally connected with the backrest installation part and the linkage mechanism respectively, the backrest installation part is used for being connected with a backrest frame, when the linkage mechanism and the linkage side plate move, the backrest mechanism drives the backrest frame to rotate, and the edge of the tail end of the backrest frame moves forwards or is kept on a vertical plane where the initial position of the backrest frame is located.

Further, when the linkage mechanism and the linkage side plates move, the backrest mechanism is set to drive the backrest frame to rotate, so that the tail end edge of the backrest frame moves in the vertical direction along a vertical plane where the initial position of the tail end edge of the backrest frame is located.

Further, the backrest installation part is a T-shaped connecting piece, a protruding backrest installation part is arranged on the T-shaped connecting piece, and the backrest installation part is used for being connected with the backrest frame.

Further, the maximum angle of rotation of the back mounting portion ranges from 28 ° to 35 ° when the seat frame is moved from the fully retracted extreme position to the fully extended extreme position.

Further, when the seat support is fully extended to the extreme position, the included angle alpha between the backrest mounting part and the horizontal plane is less than 35 degrees.

Further, when the seat support is fully extended to the limit position, the distance H2 between the highest point of the backrest installation part and the bottom surface of the base is 28cm-35 cm.

Further, the linkage mechanism comprises a first supporting piece, a swinging piece, a middle connecting piece, a linkage piece and a second supporting piece;

the first supporting piece and the second supporting piece are respectively rotatably arranged at two ends of the base, the swinging piece is rotatably connected with the linkage side plate, and two ends of the middle connecting piece are respectively connected with the swinging piece and the linkage piece.

Furthermore, the linkage part is respectively connected with the middle connecting part, the linkage side plate, the backrest linkage part and the second supporting part.

The invention also provides a seat comprising a back frame and a seat support as claimed in any one of claims 1 to 8, the back frame being fixedly connected to the back mechanism;

the back frame includes a trailing edge that moves forward or remains in a vertical plane in which its initial position lies as the seat frame is adjusted between the fully retracted extreme position to the fully extended extreme position.

Further, when the seat support is fully retracted to the extreme position, the distance H3 between the trailing edge and the bottom surface of the base is 70cm-85 cm.

Compared with the prior art, the invention has the following beneficial effects:

the height of the seat frame mounting surface is reduced, so that the height of the seat frame and the whole seat is reduced, the design requirements of a low-seat-height functional sofa or a seat can be met, conditions are created for increasing the thickness of a seat cushion and the comfort of the seat feeling, and the comfort is improved.

Under the condition that the backrest mechanism is kept at the position of lying posture by traditional backward extension, the angle of backward rotation extension of the backrest mechanism is larger, the height of the extended backrest mechanism from the bottom surface of the base is reduced, and the weightlessness feeling of legs higher than the head can be experienced by matching with the extension of legs of the seat. The invention can realize the zero-wall placement without influencing the normal extension and contraction functions of the seat support.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical means in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of a seat support according to the present embodiment;

FIG. 2 is a schematic structural diagram of the linkage mechanism of the present embodiment;

FIG. 3 is a schematic view of the seat support of the present embodiment extended to the extreme position;

FIG. 4 is a schematic position diagram of a seat of the present embodiment from a sitting position to a fully extended lying position;

fig. 5 is a schematic structural diagram of a seat according to the embodiment.

In the figures, the reference numbers are: 1-base, 2-linkage mechanism, 21-first support member, 22-swinging member, 23-middle connecting member, 24-linkage member, 241-linkage point, 242-support connecting point, 243-side plate connecting point, 244-backrest connecting point, 25-second support member, 3-linkage side plate, 31-seat frame mounting surface, 4-backrest mechanism, 41-backrest mounting member, 411-backrest mounting portion, 42-backrest linkage member, 40-backrest frame and 401-tail end edge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In addition, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be connected directly or indirectly through an intermediate medium, or the two elements may be connected through an internal member. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

As shown in fig. 1-4, an embodiment of the present invention provides a seat support with a low seat height and zero back rest gap, including a base 1, a linkage mechanism 2, a linkage side plate 3, and a back rest mechanism 4, where the linkage mechanism 2 is rotatably connected between the base 1 and the linkage side plate 3, and the back rest mechanism 4 is rotatably connected with the linkage side plate 3 and the linkage mechanism 2, respectively.

A seat frame mounting surface 31 is arranged on the outer side surface of the linkage side plate 3, the height of the plane where the seat frame mounting surface 31 is located is lower than the upper edge of the linkage side plate 3, and the distance H from the highest point of the seat frame mounting surface 31 to the bottom surface of the base 1 is 16cm-19 cm. In this embodiment, the overall installation height of the link side plate and the link mechanism 2 is reduced, the length of the parts in the link mechanism is shortened, the strength is increased, the height of the seat frame installation surface 31 is reduced, and the stability of the seat support is increased. Preferably, the distance from the highest point of the seat frame installation surface 31 to the bottom surface of the base 1 can be 16, 17, 18 or 19cm, and the design requirements of the low-height functional sofa or seat can be met.

The backrest mechanism 4 comprises a backrest mounting part 41 and a backrest linkage part 42, the backrest mounting part 41 is rotatably connected with the linkage side plate 3, two ends of the backrest linkage part 42 are respectively rotatably connected with the backrest mounting part 41 and the linkage mechanism 2, the backrest mounting part 41 is used for being connected with the backrest frame 40, when the linkage mechanism 2 and the linkage side plate 3 move, the backrest mechanism 4 drives the backrest frame 40 to rotate, and the tail end edge 401 of the backrest frame 40 moves forwards or is kept on a vertical plane where the initial position of the backrest frame 40 is located.

It should be noted that in this embodiment, the initial position of the trailing edge 401 is the position of the trailing edge 401 when the seat frame is fully retracted to the extreme position, and the plane where the trailing edge 401 is located when the initial position is a vertical plane, which is a plane perpendicular to the horizontal plane.

The trailing edge 401 does not exceed the vertical plane in which its initial position is located during movement in this embodiment, meaning that the rearward distance of the trailing edge 401 as it moves with the back frame does not exceed the vertical plane, and the trailing edge 401 may move forward with the back frame away from the vertical plane or remain on the vertical plane. Namely, the back of the seat back frame can be closely arranged with the adjacent object with zero clearance in the initial sitting posture state, and the seat can be extended to the lying posture position without obstacles.

Preferably, in this embodiment, when the linkage mechanism 2 and the linkage side plate 3 move, the backrest mechanism 4 is configured to drive the backrest frame 40 to rotate, so that the rear end edge 401 of the backrest frame 40 moves in the vertical direction along the vertical plane where the initial position is located. Specifically, the forward and upward movement of the back frame during extension of the seat support is offset by the rearward rotation of the back frame, such that the trailing edge 401 of the back mechanism moves in a vertical direction in a vertical plane.

Specifically, the backrest mounting member 41 is a T-shaped connecting member on which a protruding backrest mounting portion 411 is provided, the backrest mounting portion 411 being used for connection with the backrest frame 40. The maximum angle of rotation of the backrest mount 411 ranges from 28 deg. -35 deg. when the seat support is moved from the fully retracted extreme position to the fully extended extreme position. Preferably, the maximum angle of rotation at the backrest mounting portion may be 28 °, 30 °, 32 ° or 35 °. In this embodiment, the maximum rotation angle of the backrest installation part is increased, the backrest extension distance can be increased, the head height in the lying posture state is reduced, and the backrest comfort level is increased.

Specifically, when the seat support is fully extended to the extreme position, the included angle α between the backrest mounting portion 411 and the horizontal plane is less than 35 °, and the distance H2 from the highest point of the backrest mounting portion 411 to the bottom surface of the base 1 is 28cm-35 cm. Preferably, in this embodiment, when the seat support is adjusted to the fully extended lying position, the angle between the backrest mounting portion 411 and the horizontal plane may be 28 °, 30 ° or 32 °, and the distance from the highest point of the backrest mounting portion 411 to the bottom surface of the base 1 may be 28cm, 30cm, 32cm or 35 cm. The smaller the included angle between the backrest installation part 411 and the horizontal plane is, the smaller the distance between the highest point of the backrest installation part and the bottom surface of the base 1 is, so that the lower the height of the head of the seat after being stretched is, and the weightless lying posture state that the legs are higher than the head can be realized after being stretched.

Specifically, the linkage mechanism 2 includes a first support member 21, a swinging member 22, a middle connecting member 23, a linkage member 24 and a second support member 25, the first support member 21 and the second support member 25 are respectively rotatably disposed at two ends of the base 1, the swinging member 22 is rotatably connected with the linkage side plate 3, and two ends of the middle connecting member 23 are respectively connected with the swinging member 22 and the linkage member 24.

Specifically, the linkage 24 is connected to the middle connecting member 23, the linkage side plate 3, the backrest linkage 42 and the second supporting member 25, respectively. The linkage member 24 is provided with a linkage point 241, a support connection point 242, a side plate connection point 243 and a backrest connection point 244, the linkage member is connected with the middle connecting member 23 at the linkage point 241, connected with the second support member at the support connection point 242, connected with the linkage side plate at the side plate connection point 243 and connected with the backrest linkage member 42 at the backrest connection point 244. Wherein the ratio of the distance L1 from the connecting point 241 to the supporting connecting point 242 to the distance L2 from the supporting connecting point 242 to the connecting point of the second supporting member and the base is in the range of 0.6-0.7. Preferably, it may be 0.6, 0.65, 0.67 or 0.7. In this embodiment, the length of the second support member is shortened, the overall height of the linkage mechanism is reduced, the strength is increased, and the structural stability is increased.

In this embodiment, the seat support further includes a leg mechanism rotatably mounted in front of the linkage side plate, and the leg mechanism can be deployed and retracted in front of the linkage side plate.

In this embodiment, the drive mechanism drives the leg mechanism to extend and retract, thereby driving the linkage mechanism, the linkage side plates, and the backrest mechanism to move, so that the seat support can move between positions of a sitting position, an extended position, and a lying position. Wherein, the leg mechanism and the backrest mechanism are completely contracted to the limit positions in the sitting posture state; when in the stretching posture, the leg mechanism is stretched forwards; the leg mechanism and the backrest mechanism are fully extended to the limit positions in the lying posture state.

In this embodiment, the seat support includes two sets of identical support structures arranged oppositely, the seat frame of the seat is mounted on the seat frame mounting surface, the seat armrest is connected with the linkage side plate, and the backrest frame is connected with the backrest mechanism.

The present invention also provides a seat, as shown in fig. 4 and 5, comprising a backrest frame 40 and the seat support, wherein the backrest frame 40 is fixedly connected to the backrest mechanism 4, the backrest frame 40 comprises a trailing edge 401, and the trailing edge 401 moves forward or remains in a vertical plane in which its initial position is located when the seat support is adjusted between the fully retracted extreme position to the fully extended extreme position. In this embodiment, the back of the seat back frame can be placed close to an adjacent object with zero clearance in a sitting posture state, and can be extended to a lying posture position without obstacles.

Specifically, when the seat support is fully retracted to the extreme position, the distance H3 from the trailing edge 401 to the bottom surface of the base 1 is 70cm-85 cm. Specifically, in this embodiment, the backrest height of the finished seat may be 70cm, 75cm, 80cm or 85cm, the finished seat backrest height is reduced and the seat volume is reduced.

The height of the seat frame mounting surface is reduced, so that the overall seat height of the seat frame and the seat is reduced, the design requirements of a low-seat-height functional sofa or seat can be met, conditions are created for increasing the thickness of the seat cushion and improving the comfort.

Under the condition that the backrest mechanism is kept at the position of lying posture by traditional backward extension, the angle of backward rotation extension of the backrest mechanism is larger, the height of the extended backrest mechanism from the bottom surface of the base is reduced, and the weightlessness feeling of legs higher than the head can be experienced by matching with the extension of legs of the seat. The invention can realize the zero-wall placement without influencing the normal extension and contraction functions of the seat support, namely, the seat can be placed close to the wall in a sitting posture state and can be freely extended to a lying posture position.

The seat of the embodiment can be driven by manual zipper control, can be provided with a driving device, and can meet different requirements of users by controlling position adjustment through a remote switch or an electric control button. The seat support can be applied to furniture components such as sofas, seats and the like, and comprises but is not limited to single-person or multi-person furniture components, sofas and combined furniture components.

In the present embodiment, "front" and "rear" refer to the orientations that a user takes when using a sofa or a seat including the seat holder of the present invention, that is, the direction in which the user faces when using the seat is "front" and the opposite direction is "rear".

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. The seat support with the low seat height and zero backrest gap is characterized by comprising a base (1), a linkage mechanism (2), linkage side plates (3) and a backrest mechanism (4), wherein the linkage mechanism (2) is rotatably connected between the base (1) and the linkage side plates (3), and the backrest mechanism (4) is respectively rotatably connected with the linkage side plates (3) and the linkage mechanism (2);

a seat frame mounting surface (31) is arranged on the outer side surface of the linkage side plate (3), the height of the plane where the seat frame mounting surface (31) is located is lower than the upper edge of the linkage side plate (3), and the distance H from the highest point of the seat frame mounting surface (31) to the bottom surface of the base (1) is 16cm-19 cm;

the backrest mechanism (4) comprises a backrest mounting part (41) and a backrest linkage part (42), the backrest mounting part (41) is rotatably connected with the linkage side plate (3), two ends of the backrest linkage part (42) are respectively rotatably connected with the backrest mounting part (41) and the linkage mechanism (2), and the backrest mounting part (41) is used for being connected with a backrest frame (40); when the linkage mechanism (2) and the linkage side plates (3) move, the backrest mechanism (4) drives the backrest frame (40) to rotate, and the tail end edge (401) of the backrest frame (40) moves forwards or is kept on a vertical plane where the initial position is located.

2. A low seat height zero back rest gap seat support according to claim 1, wherein the back rest mechanism (4) is arranged to rotate the back rest frame (40) when the linkage mechanism (2) and the linkage side plates (3) are moved, so that the trailing edge (401) of the back rest frame (40) moves in a vertical direction along a vertical plane in which its initial position is located.

3. A low seat height zero back rest clearance seat support according to claim 1, wherein the back rest mount (41) is a T-shaped connector with a protruding back rest mounting portion (411) provided thereon, the back rest mounting portion (411) being adapted to be connected to the back rest frame (40).

4. A low seat height zero back rest clearance seat support as claimed in claim 3, wherein the maximum angle of rotation of the back rest mounting portion (411) when the seat support is from the fully retracted extreme position to the fully extended extreme position is in the range of 28 ° to 35 °.

5. A low seat height zero back rest clearance seat support as claimed in claim 3, wherein the angle α of the back rest mounting portion (411) to the horizontal when the seat support is fully extended to the extreme position is less than 35 °.

6. A low seat height zero back rest clearance seat support according to claim 3, wherein the distance H2 from the highest point of the back rest mounting portion (411) to the bottom surface of the base (1) is 28cm-35cm when the seat support is fully extended to the extreme position.

7. A low seat height zero back rest gap seat support according to claim 1, wherein the linkage mechanism (2) comprises a first support member (21), a swinging member (22), a middle connecting member (23), a linkage member (24) and a second support member (25);

the first supporting piece (21) and the second supporting piece (25) are respectively rotatably arranged at two ends of the base (1), the swinging piece (22) is rotatably connected with the linkage side plate (3), and two ends of the middle connecting piece (23) are respectively connected with the swinging piece (22) and the linkage piece (24).

8. The seat support with low seat height and zero back rest gap as claimed in claim 7, wherein the linkage member (24) is connected to the middle connecting member (23), the linkage side plate (3), the back rest linkage member (42) and the second supporting member (25), respectively.

9. A seat comprising a back frame (40) and a seat support according to any one of claims 1 to 8, the back frame (40) being fixedly connected to the back mechanism (4);

the back frame (40) includes a trailing edge (401), the trailing edge (401) moving forward or remaining in a vertical plane in its initial position as the seat support is adjusted between the fully retracted extreme position to the fully extended extreme position.

10. A seat according to claim 9, wherein the distance H3 from the trailing edge (401) to the underside of the base (1) is between 70cm and 85cm when the seat support is fully retracted to the extreme position.