CN112294004A

CN112294004A - Seat linkage support structure

Info

Publication number: CN112294004A
Application number: CN202011069268.2A
Authority: CN
Inventors: 李晓鸿; 陈帅; 吕战征; 陈晨
Original assignee: Remacro Machinery and Technology Wujiang Co Ltd
Current assignee: Remacro Machinery and Technology Wujiang Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-02-02

Abstract

The invention discloses a seat linkage support structure which comprises a linkage assembly, a seat frame and a backrest installation part, wherein the backrest installation part is rotationally connected with the seat frame through the linkage assembly; the linkage subassembly includes assembly plate and drive connecting rod, the drive connecting rod with the middle part of seat frame rotates to be connected, the assembly plate includes side board and supporting part, side board one end with the drive connecting rod is connected, the other end of side board with the one end of supporting part is connected, the other end of supporting part with the back installed part is connected. The invention reduces the number of parts of the linkage assembly, has simple structure and small occupied space, and compresses the overall height of the support structure, thereby reducing the height of the seat and improving the comfort of the seat.

Description

Seat linkage support structure

Technical Field

The invention relates to the field of furniture manufacturing, in particular to a seat linkage support structure.

Background

Along with the gradual improvement of living standard of people, the functions of chairs such as sofas, deck chairs, office chairs, theater chairs and the like are more and more, and the requirements on the comfort level and the functions of the chairs are higher and higher for solving the problems of easy fatigue generation and better body relaxation when people sit for a long time.

The general part of the mechanical stretching device of present function sofa and seat is many, leads to that supporting structure is complicated, and production technology is difficult, and the seat takes up an area of the space great, is unfavorable for seat compression size, influences whole pleasing to the eye.

Disclosure of Invention

The invention aims to solve the problems that the linkage support structure has more structural parts, is complex in production process and is not beneficial to the size compression of a seat, so that the occupied space of the seat is larger, and the integral attractiveness is influenced.

The invention provides a seat linkage support structure which comprises a linkage assembly, a seat frame and a backrest installation part, wherein the backrest installation part is rotationally connected with the seat frame through the linkage assembly; the linkage subassembly includes assembly plate and drive connecting rod, the drive connecting rod with the middle part of seat frame rotates to be connected, the assembly plate includes side board and supporting part, side board one end with the drive connecting rod is connected, the other end of side board with the one end of supporting part is connected, the other end of supporting part with the back installed part is connected.

Further, the transmission assembly comprises a first elastic piece and a second elastic piece;

the first elastic piece is arranged between the pedal telescopic mechanism and the linkage assembly; the second elastic piece is obliquely arranged between the seat frame and the side plate portion, one end of the second elastic piece is connected with the side wall of the seat frame, and the other end of the second elastic piece is connected with one end, close to the supporting portion, of the side plate portion.

Furthermore, one end of the first elastic piece is connected with the pedal telescopic mechanism, and the other end of the first elastic piece is connected with the side plate part.

Further, a first pivot point and a second pivot point are respectively arranged at two ends of the side plate part;

the side plate part is connected with the driving connecting rod through a first pivot point, and the side plate part is connected with the supporting part in a bending mode through a second pivot point.

Further, the side plate part and the support part are fixedly connected or integrally bent to form an L shape.

Further, the included angle between the side plate part and the supporting part is 90-100 degrees.

Further, a first fixing piece is arranged on the side plate part;

the ratio of the distance from the first fixing piece to the first pivot point to the distance from the first fixing piece to the second pivot point is greater than 1, and the first fixing piece is used for being connected with one end of the first elastic piece.

Further, a second fixing piece is arranged on the side plate part;

the ratio of the distance from the second fixing piece to the first pivot point to the distance from the second fixing piece to the second pivot point is greater than 2, and the second fixing piece is used for being connected with one end of the second elastic piece.

Further, the pedal telescopic mechanism comprises a connecting rod assembly, a main foot rest piece and an auxiliary foot rest assembly, and the connecting rod assembly is used for driving the main foot rest piece and the auxiliary foot rest assembly to extend or retract relative to the seat frame;

the connecting rod component comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the first connecting rod is connected with the second connecting rod, the third connecting rod is connected with the fourth connecting rod, the middle of the second connecting rod is in cross connection with the middle of the third connecting rod, the first connecting rod and the third connecting rod are respectively connected with the seat frame, and the second connecting rod and the fourth connecting rod are respectively connected with the main leg rest part.

Furthermore, the pedal telescopic mechanism also comprises a transmission connecting piece;

the transmission connecting piece is arranged at one end of the pedal telescopic mechanism connected with the transmission assembly, one end of the transmission connecting piece is rotatably connected with the first connecting rod, and the other end of the transmission connecting piece is used for being connected with the first elastic piece.

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

the seat has the advantages of small number of parts, simple structure and small occupied space, and the overall height of the support structure is reduced, so that the height of the seat is reduced, and the comfort level of the seat is improved.

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 linking bracket structure according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a linkage assembly according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an extended position of a seat linking frame structure according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a seat frame, linkage assembly, drive assembly and backrest mount in a recumbent position in accordance with an embodiment of the present invention;

FIG. 5 is another schematic view of the embodiment of FIG. 1;

FIG. 6 is a side view of a seated position of a seat linkage support structure according to an embodiment of the present invention;

FIG. 7 is a side view of an extended position of a seat linkage support structure in accordance with an embodiment of the present invention;

FIG. 8 is a side view of a recumbent position of a seat linkage support structure in accordance with an embodiment of the present invention;

FIG. 9 is a schematic view of the seat linkage support structure, arm rest frame and back rest frame of an embodiment of the present invention;

FIG. 10 is a schematic view of a prior art seat linkage bracket structure;

fig. 11 is a comparison view of the structure of the seat linking bracket of the prior art and the embodiment.

In the figure: 1-linkage assembly, 2-transmission assembly, 21-first elastic member, 22-second elastic member, 10-assembly plate, 11-drive link, 12-side plate portion, 13-support portion, 3-seat frame, 4-backrest mounting member, 5-pedal telescopic mechanism, 121-first pivot point, 122-second pivot point, 123-first fixing member, 124-second fixing member, 41-first section, 42-second section, 43-third section, 51-link assembly, 511-first link, 512-second link, 513-third link, 514-fourth link, 52-main footrest assembly, 53-auxiliary footrest assembly, 531-auxiliary footrest assembly, 532-footrest link, 54-transmission connecting member, 6-mounting cross bar, 7-driving cross bar, 8-connecting rod piece, 200-armrest frame and 400-backrest frame.

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" and "third" 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The seat linkage support structure can be applied to seats such as sofas, office chairs, leisure chairs and the like. The chair can be adjusted among three positions of sitting posture, stretching posture and lying posture. Wherein, in the sitting position, the chair back is kept in an upright state relative to the seat frame; in the stretching position, the pedal stretching mechanism stretches forwards; in the lying position, the pedal telescopic mechanism and the seat frame rotate upwards relative to the extending position, the backrest mounting piece rotates backwards relative to the seat frame, and the backrest and the seat frame form an obtuse angle relationship, so that the seat is adjusted to be in an inclined lying state.

Examples

As shown in fig. 1 to 5, an embodiment of the present invention provides a seat linking bracket structure, which includes a linking assembly 1, a seat frame 3 and a backrest installation part 4, wherein the backrest installation part 4 is rotatably connected to the seat frame 3 through the linking assembly 1; linkage assembly 1 includes assembly plate 10 and drive connecting rod 11, drive connecting rod 11 with the middle part of seat frame 3 rotates and is connected, assembly plate 10 includes side board 12 and supporting part 13, side board 12 sets up the below of seat frame 3, side board 12 one end with drive connecting rod 11 connects, the other end of side board 12 with the one end of supporting part 13 is connected, the other end of supporting part 13 with back installed part 4 connects.

Specifically, the side plate portion 12 and the support portion 13 are fixedly connected or integrally bent into an L shape. The included angle between the side plate part 12 and the supporting part 13 is 90-100 degrees. Specifically, the side plate portion 12 and the supporting portion 13 may be two separate parts, and are fixedly connected by a fastener, so that the material utilization rate can be improved in the production process. In some embodiments, the side plate portion 12 and the supporting portion 13 may also be an L-shaped assembly formed by bending integrally, and may be formed by forging integrally, so that the number of production steps is reduced. In the present embodiment, the supporting portion 13 extends toward the side plate portion 12 and is fixedly connected to a position near the middle of the side plate portion 12, and is formed into a bent shape, so that the overall structural strength of the linkage assembly can be increased.

Specifically, the seat linkage bracket structure further comprises a transmission assembly 2, wherein the transmission assembly 2 comprises a first elastic piece 21 and a second elastic piece 22; the first elastic member 21 is disposed between the pedal extension mechanism 5 and the linkage assembly 1, specifically, one end of the first elastic member 21 is connected to the pedal extension mechanism 5, and the other end of the first elastic member 21 is connected to the side plate 12; the second elastic member 22 is obliquely disposed between the seat frame 3 and the side plate portion 12, one end of the second elastic member 22 is connected to the side wall of the seat frame 3, and the other end of the second elastic member 22 is connected to one end of the side plate portion 12 close to the supporting portion 13. The second elastic member 22 is used to maintain an elastic restoring force between the seat frame 3 and the side plate portion 12.

Specifically, in the present embodiment, the linkage assembly 1 is disposed between the seat frame 3 and the backrest mount 4, and is used for supporting and driving the backrest mount 4 to rotate relative to the seat frame 3 during the seat position adjustment process. The seat drives the seat frame to rotate upwards in an inclined mode through the pedal telescopic mechanism 5 in the stretching process of the seat, and the pedal telescopic mechanism 5 is tensioned through the first elastic piece 21. When the seat is retracted from the lying position, the seat frame is smoothly rotated and retracted under the elastic restoring force of the second elastic member and the self-gravity. In this embodiment, the first elastic member 21 and the second elastic member 22 may be spring members having elastic restoring force, and the two ends of the spring members have hooks or hanging rings, and in some embodiments, the spring members may also be elastic ropes or elastic zippers.

Specifically, both ends of the side plate portion 12 are provided with a first pivot point 121 and a second pivot point 122, respectively; the side plate 12 is connected to the driving link 11 through a first pivot point 121, and the side plate 12 is connected to the support 13 through a second pivot point 122. In practical applications, the side plate 12 is used to be fixedly connected with two side armrests, and the side plate 12 is provided with a mounting hook, a positioning hole or a positioning column for being connected with an armrest frame.

Specifically, a first fixing member 123 is further provided on the side plate portion 12; the ratio of the distance from the first fixing member 123 to the first pivot point 121 to the distance from the first fixing member 123 to the second pivot point 122 is greater than 1, and the first fixing member 123 is used to connect with one end of the first elastic member 21. Specifically, a second fixing member 124 is further provided on the side plate portion 12; the ratio of the distance from the second fixing member 124 to the first pivot point 121 to the distance from the second fixing member 124 to the second pivot point 122 is greater than 2, and the second fixing member 124 is used to connect with one end of the second elastic member 22. Specifically, the second fixing member 124 is closer to the second pivot point 122, and the fixing position of the second fixing member 124 is closer to the lower edge of the side plate portion 12. The first fixing part and the second fixing part can be fixing nails, fixing hooks, fixing pins or other parts with fixing or hanging functions.

Specifically, the backrest mount 4 includes a first section 41, a second section 42, and a third section 43 that are integrally formed by bending; the first section 41 is rotatably connected to the side of the seat frame 3, the second section 42 is rotatably connected to the support 13, and the third section 43 is adapted to be connected to the backrest frame of the seat. In particular, the third section of the backrest mount 41 may be provided in such a way that the structure of the plug blade can be plugged into a backrest frame of a seat. The backrest mount 4 may also be bent into a Z-like mount.

Specifically, the pedal telescopic mechanism 5 comprises a connecting rod assembly 51, a main footrest piece 52 and an auxiliary footrest assembly 53, wherein the connecting rod assembly 51 is used for driving the main footrest piece 52 and the auxiliary footrest assembly 53 to extend or retract relative to the seat frame 3; the link assembly 51 includes a first link 511, a second link 512, a third link 513 and a fourth link 514, the first link 511 is connected to the second link 512, the third link 513 is connected to the fourth link 514, the middle of the second link 512 is cross-connected to the middle of the third link 513, the first link 511 and the third link 513 are respectively connected to the seat frame 3, and the second link 512 and the fourth link 514 are respectively connected to the main footrest 52. In particular, the pedal retracting mechanism 5 further comprises a transmission connection 54; the transmission connecting piece 54 is arranged at one end of the pedal telescopic mechanism 5 connected with the transmission assembly 2, one end of the transmission connecting piece 54 is rotatably connected with the first connecting rod 511, and the other end of the transmission connecting piece 54 is used for being connected with the first elastic piece 21.

Specifically, the auxiliary leg rest assembly comprises an auxiliary leg rest member 531 and a leg rest link 532, wherein the auxiliary leg rest member 531 is connected with the main leg rest member 52, and the auxiliary leg rest member 532 is connected with the fourth link 514 through the leg rest link 532. In the present embodiment, the main footrest 52 and the auxiliary footrest 532 are used to mount the main footrest and the auxiliary footrest, respectively. In some embodiments, the foot operated telescoping mechanism 5 may have one, two, or three, etc. different numbers of footrests, and the extended length of the foot operated telescoping mechanism may be different.

Specifically, the pedal telescopic mechanism 5 further comprises a transmission connecting piece 54, the transmission connecting piece 54 is arranged at one end of the pedal telescopic mechanism 5 connected with the transmission assembly 2, one end of the transmission connecting piece 54 is rotatably connected with the first connecting rod 511, and the other end of the transmission connecting piece 54 is used for being connected with the first elastic piece 21.

Specifically, the linkage assembly 1, the transmission assembly 2, the seat frame 3, the backrest installation part 4 and the pedal telescopic mechanism 5 of the seat linkage support structure of the embodiment are two sets and are oppositely arranged. The middle part of the support structure is also provided with a mounting rail 6, a driving rail 7 and a driving mechanism (not shown in the figure). Two ends of the mounting cross rod 6 are respectively connected with the supporting parts 13 at two ends through adapters; the two ends of the driving cross rod 7 are respectively connected with the middle parts of the two first connecting rods 511, and the driving mechanism is arranged between the driving cross rod 7 and the mounting cross rod 6, so that the seat can move among positions of sitting, stretching and lying postures. Specifically, the driving mechanism is a linear driver, and may be a push rod motor structure, wherein a motor end of the driving mechanism is connected to the mounting rail 6 through a mounting member, and a push rod end of the driving mechanism is connected to the driving rail 7 through a mounting member. The seat linkage support structure is a support structure driven by a motor.

Specifically, as shown in fig. 6-8, the driving mechanism can be controlled by a remote controller or a switch button to drive the seat linkage support structure to adjust the positions of the sitting position, the stretching position and the lying position in practical application. When the seat is adjusted to the stretching position from the sitting posture, the push rod of the driving mechanism pushes the driving cross rod forwards, the driving cross rod drives the pedal telescopic mechanism 5 to stretch forwards, and the linkage assembly and the backrest installation part are fixed. When the chair is adjusted to the lying position from the stretching position, the driving mechanism continuously operates the push rod to completely extend, the driving cross rod 7 and the pedal telescopic mechanism 5 are pushed to extend upwards, the seat frame 3 is driven to rotate upwards, the first elastic piece is tensioned, and the backrest installation piece rotates downwards and backwards. When the backrest is adjusted and retracted from the lying position, the seat frame rotates downwards to be retracted under the action of the elastic restoring force of the second elastic piece and the self gravity of the human body due to the fact that the head is raised firstly and the upper body is upright when the backrest is seated, the backrest installation piece 4 rotates firstly to be retracted, and then the pedal telescopic mechanism 5 retracts. In the lying position, the first elastic piece tightly pulls the pedal telescopic mechanism, so that the backrest mounting piece is firstly retracted, and then the pedal telescopic mechanism is retracted. The first elastic piece and the second elastic piece with elasticity can make the seat support more smooth in the position adjustment process in-process, and the second elastic piece has guaranteed the motion order of back installed part and pedal telescopic machanism in the expansion and the receipts of seat simultaneously.

Specifically, as shown in fig. 9, the seat linking bracket structure of the present invention is fixed in the armrest frames at both sides of the seat, and is manufactured into a sofa or a leisure seat by installing the armrest frame 200, the backrest frame 400, and the seat frame, and then decorating with soft bags. It should be noted that, in the present embodiment, the assembly plate is respectively connected to the armrest frames at two sides and is fixed, and the backrest frame 400 may be a T-shaped frame when viewed from the front of the seat, so that two protruding ends of the T-shaped backrest frame do not interfere with the left and right armrest frames, and the T-shaped backrest frame 400 may rotate around the armrest frames.

As shown in fig. 10, the seat linking bracket structure according to the embodiment of the present invention reduces the link member 8 compared to the prior art, and one end of the link member 8 is connected to the driving link and the other end is connected to the supporting portion. In the seat support structure in the prior art, a pedal telescopic mechanism and a backrest mechanism are respectively driven by double motors, and the adjustment sequence is controlled by the motors.

As shown in figure 11, the seat support of the invention has the advantages that compared with the original seat support, the parts of the linkage assembly are reduced, the backrest assembly is optimized to only have one backrest installation part, and the height of the seat support is obviously reduced, such as the compression amount of the height dimension is more than 2 cm.

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. A seat linkage support structure is characterized by comprising a linkage assembly (1), a seat frame (3) and a backrest installation part (4), wherein the backrest installation part (4) is rotatably connected with the seat frame (3) through the linkage assembly (1); linkage subassembly (1) is including assembly plate (10) and drive connecting rod (11), drive connecting rod (11) with the middle part of seat frame (3) is rotated and is connected, assembly plate (10) are including side board (12) and supporting part (13), side board (12) one end with drive connecting rod (11) are connected, the other end of side board (12) with the one end of supporting part (13) is connected, the other end of supporting part (13) with back installed part (4) are connected.

2. A seat linkage support structure according to claim 1, further comprising a transmission assembly (2), said transmission assembly (2) comprising a first elastic member (21) and a second elastic member (22);

the first elastic piece (21) is arranged between the pedal telescopic mechanism (5) of the seat and the linkage assembly (1); the second elastic piece (22) is obliquely arranged between the seat frame (3) and the side plate portion (12), one end of the second elastic piece (22) is connected with the side wall of the seat frame (3), and the other end of the second elastic piece (22) is connected with one end, close to the supporting portion (13), of the side plate portion (12).

3. A seat linking and supporting structure as claimed in claim 2, wherein said first elastic member (21) is connected at one end thereof to said foot operated retracting mechanism (5), and at the other end thereof said first elastic member (21) is connected to said side plate portion (12).

4. A seat linking bracket structure as claimed in claim 2, wherein said side plate portion (12) is provided at both ends thereof with a first pivot point (121) and a second pivot point (122), respectively;

the side plate part (12) is connected with the driving connecting rod (11) through a first pivot point (121), and the side plate part (12) is connected with the supporting part (13) in a bending mode through a second pivot point (122).

5. The seat linking and supporting structure according to claim 1, wherein the side plate portion (12) is fixedly connected to the supporting portion (13) or integrally bent into an L-shape.

6. A seat linking bracket structure as claimed in claim 1, wherein the angle between the side plate portion (12) and the support portion (13) is 90 ° to 100 °.

7. A seat linking and support structure as claimed in claim 4, wherein said side plate portion (12) is further provided with a first fixing member (123);

the ratio of the distance from the first fixing member (123) to the first pivot point (121) to the distance from the first fixing member (123) to the second pivot point (122) is greater than 1, and the first fixing member (123) is used for connecting with one end of the first elastic member (21).

8. A seat linking frame structure as claimed in claim 4, wherein a second fixing member (124) is further provided to said side plate portion (12);

the ratio of the distance from the second fixing member (124) to the first pivot point (121) to the distance from the second fixing member (124) to the second pivot point (122) is greater than 2, and the second fixing member (124) is used for connecting with one end of the second elastic member (22).

9. A seat linkage support structure according to claim 2, characterized in that the foot operated telescoping mechanism (5) comprises a link assembly (51), a main foot rest member (52) and an auxiliary foot rest assembly (53), the link assembly (51) being adapted to bring the main foot rest member (52) and the auxiliary foot rest assembly (53) to extend or retract relative to the seat frame (3);

the connecting rod assembly (51) comprises a first connecting rod (511), a second connecting rod (512), a third connecting rod (513) and a fourth connecting rod (514), the first connecting rod (511) is connected with the second connecting rod (512), the third connecting rod (513) is connected with the fourth connecting rod (514), the middle of the second connecting rod (512) is in cross connection with the middle of the third connecting rod (513), the first connecting rod (511) and the third connecting rod (513) are respectively connected with the seat frame (3), and the second connecting rod (512) and the fourth connecting rod (514) are respectively connected with the main foot placing piece (52).

10. A seat frame structure according to claim 9, wherein said foot operated telescoping mechanism (5) further comprises a drive link (54);

the transmission connecting piece (54) is arranged at one end of the pedal telescopic mechanism (5) connected with the transmission assembly (2), one end of the transmission connecting piece (54) is rotatably connected with the first connecting rod (511), and the other end of the transmission connecting piece (54) is used for being connected with the first elastic piece (21).