CN114403633A

CN114403633A - Seat support

Info

Publication number: CN114403633A
Application number: CN202210231105.2A
Authority: CN
Inventors: 杨利明; 叶琦琦
Original assignee: Dewertokin Technology Group Co Ltd
Current assignee: Dewertokin Technology Group Co Ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-04-29

Abstract

The invention relates to the technical field of furniture manufacturing, and particularly discloses a seat support, which comprises a seat frame, a backrest mounting frame and a linkage assembly, wherein the linkage assembly comprises an armrest frame, a supporting rod and a first linkage piece; seat frame, back mounting bracket and linkage subassembly are established to two sets and relative setting. The support rod of the seat support plays a role in supporting the seat frame, the seat frame is prevented from being directly hinged with the backrest mounting frame, the hinged position of the backrest mounting frame and the armrest frame is too large in stress, and then the hinged position of the backrest mounting frame and the armrest frame is easy to deform or break away from.

Description

Seat support

Technical Field

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

Background

With the gradual improvement of living standard of people, the ordinary seat can not meet the requirement of people on the comfort level of the seat.

Currently, to meet the requirements of people for seat comfort, seats often meet multiple posture forms, as earlier patent CN112155356A discloses a seat support that includes a seat frame, a backrest mounting frame, a pedal telescoping mechanism and an extension linkage mechanism, which can be switched among a sitting position, an extended position and a lying position. However, the seat support hingedly connects the seat frame and the back mount to each other, and the back mount is hingedly connected to the support portion of the extension linkage. The hinged part of the backrest installation frame and the supporting part of the extension linkage mechanism bears the whole gravity of a human body, so that the hinged part of the backrest installation frame and the supporting part of the extension linkage mechanism is easy to deform and separate from each other when the seat of the seat support is used for a long time.

Disclosure of Invention

The invention aims to: a seat support is provided to solve the problem in the related art that a seat frame and a backrest installation frame are hinged with each other and the backrest installation frame is hinged with a supporting part of an extension linkage mechanism. The hinged part of the backrest installation frame and the supporting part of the extension linkage mechanism bears the whole gravity of a human body, so that when the seat of the seat support is used for a long time, the hinged part of the backrest installation frame and the supporting part of the extension linkage mechanism is easy to deform and separate from each other.

The invention provides a seat support, which comprises a seat frame, a backrest mounting frame and a linkage assembly, wherein the linkage assembly comprises an armrest frame, a supporting rod and a first linkage piece;

the seat frame, the backrest installation frame and the linkage assembly are arranged in two groups and are arranged oppositely.

As the preferable technical scheme of the seat support, the seat support further comprises two pedal telescopic mechanisms, and the two pedal telescopic mechanisms are respectively hinged with the two seat frames in a one-to-one correspondence mode.

As a preferred technical scheme of the seat support, the armrest frame comprises a first support and a second support, one end of the first support is fixedly connected with one end of the second support, the first support is horizontally arranged, and the second support and the first support form an included angle;

the backrest mounting bracket is hinged to one end, far away from the first support, of the second support, and one end of the supporting rod is hinged to the first support.

As a preferable technical solution of the seat support, one end of the first linkage is hinged to one end of the backrest mounting bracket close to the first support.

As a preferable technical scheme of the seat support, one end of the seat frame is hinged with the supporting rod;

the linkage assembly further comprises a limiting rod, one end of the limiting rod is hinged to the other end of the seat frame, and the other end of the limiting rod is hinged to the first support.

As a preferable technical scheme of the seat support, the linkage assembly further comprises a second linkage member, one end of the second linkage member is fixedly or movably connected with the pedal telescopic mechanism, and the other end of the second linkage member is fixedly or movably connected with the armrest frame or the support rod;

the second linkage member has elasticity.

As a preferable technical scheme of the seat support, the pedal telescopic mechanism comprises a connecting rod assembly, a main pedal and an auxiliary pedal assembly, and the connecting rod assembly drives the main pedal and the auxiliary pedal assembly to extend or retract relative to the seat frame.

As a preferable technical solution of the seat support, the link assembly includes a first link, a second link, a third link, and a fourth link, the first link is hinged to the second link, the third link is hinged to the fourth link, a middle portion of the second link is hinged to a middle portion of the third link in a crossing manner, the first link and the third link are respectively hinged to the seat frame, and the second link and the fourth link are respectively hinged to the main pedal.

As a preferable technical scheme of the seat support, the pedal telescopic mechanism further comprises a transmission connecting piece; one end of the transmission connecting piece is in transmission connection with the first connecting rod, and the other end of the transmission connecting piece is fixedly connected or movably connected with the second linkage piece.

As a preferable technical scheme of the seat support, the auxiliary pedal assembly comprises an auxiliary pedal and an auxiliary connecting rod, two ends of the auxiliary connecting rod are respectively hinged with the auxiliary pedal and the main pedal, and the middle part of the fourth connecting rod is hinged with the main pedal; one end of the fourth connecting rod, which is far away from the third connecting rod, is hinged with the auxiliary pedal.

The invention has the beneficial effects that:

the invention provides a seat support, which comprises a seat frame, a backrest mounting frame and a linkage assembly, wherein the linkage assembly comprises an armrest frame, a supporting rod and a first linkage piece; seat frame, back mounting bracket and linkage subassembly are established to two sets and relative setting. When the angle between the seat frame and the backrest installation frame is adjusted, the relative position of the seat frame and the armrest frame is adjusted at first, then the support rod rotates relative to the seat frame, meanwhile, the support rod drives the first linkage piece to move, the first linkage piece drives the backrest installation frame to rotate around the hinge shaft of the backrest installation frame and the armrest frame, and then the angle between the seat frame and the backrest installation frame is adjusted. In the process, the support rod plays a role in supporting the seat frame, the seat frame is prevented from being directly hinged with the backrest installation frame, and the hinged part of the backrest installation frame and the armrest frame is easy to deform or break away from the problems due to too large stress.

Drawings

FIG. 1 is a first schematic view of a seat support in a sitting position according to an embodiment of the present invention;

FIG. 2 is a second schematic structural view of a seat support in a sitting position in accordance with an embodiment of the present invention;

FIG. 3 is a first schematic structural view of a seat support in an extended position in accordance with an embodiment of the present invention;

FIG. 4 is a second schematic structural view of the seat support in the extended position in accordance with an embodiment of the present invention;

FIG. 5 is a first schematic structural view of a seat support in a recumbent position in accordance with an embodiment of the present invention;

fig. 6 is a second schematic structural view of the seat support in the reclining position according to the embodiment of the invention.

In the figure:

1. a seat frame;

2. a backrest mounting bracket;

3. a linkage assembly; 31. a handrail frame; 311. a first bracket; 312. a second bracket; 32. a support bar; 33. a first linkage member; 34. a limiting rod; 35. a second linkage member;

4. a pedal telescoping mechanism; 411. a first link; 412. a second link; 413. a third link; 414. a fourth link; 42. a main pedal; 43. a secondary footrest assembly; 431. auxiliary pedaling; 432. an auxiliary connecting rod; 44. and a transmission connecting piece.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1 to 6, the present embodiment provides a seat support, which includes a seat frame 1, a backrest mounting frame 2 and a linkage assembly 3, wherein the linkage assembly 3 includes an armrest frame 31, a support rod 32 and a first linkage member 33, the backrest mounting frame 2 is hinged to the armrest frame 31, one end of the support rod 32 is hinged to the armrest frame 31, two ends of the first linkage member 33 are respectively hinged to the other end of the support rod 32 and one end of the backrest mounting frame 2 close to the seat frame 1, and a position between two hinge points at two ends of the support rod 32 is hinged to the seat frame 1; a seat frame 1, a backrest mounting bracket 2 and a linkage component 3 are a support group, and the support group is provided with two groups which are arranged oppositely. When the angle between the seat frame 1 and the backrest installation frame 2 is adjusted, the relative position between the seat frame 1 and the armrest frame 31 is adjusted at first, then the support rod 32 rotates relative to the seat frame 1, meanwhile, the support rod 32 drives the first linkage piece 33 to move, the first linkage piece 33 drives the backrest installation frame 2 to rotate around the hinge shaft of the backrest installation frame 2 and the armrest frame 31, and then the angle between the seat frame 1 and the backrest installation frame 2 is adjusted. In the process, the supporting rod 32 plays a supporting role for the seat frame 1, so that the situation that the seat frame 1 is directly hinged with the backrest installation frame 2 and the hinged part of the backrest installation frame 2 and the armrest frame 31 is easy to deform or break away from due to too large stress is avoided.

In this embodiment, the support sets are two sets and are arranged oppositely. This setting makes seat support's bearing strength and stability show and improves. In other embodiments, the sets of supports are provided in three, four or five sets, and they are all opposed and spaced apart.

Optionally, the armrest frame 31 includes a first bracket 311 and a second bracket 312, one end of the first bracket 311 and one end of the second bracket 312 are fixedly connected to each other, the first bracket 311 is horizontally disposed, and the second bracket 312 and the first bracket 311 form an included angle. The backrest mounting frame 2 is hinged with one end of the second bracket 312 far away from the first bracket 311, and one end of the support rod 32 is hinged with the first bracket 311. In this embodiment, the included angle between the first bracket 311 and the second bracket 312 is a right angle, which is beneficial to improving the supporting stability of the second bracket 312. Specifically, the first bracket 311 and the second bracket 312 may be integrally formed and supported, or may be fixedly connected by welding or screwing. In other embodiments, the included angle between the first bracket 311 and the second bracket 312 may also be an acute angle or an obtuse angle.

Alternatively, one end of the first linkage member 33 is hinged to one end of the backrest mount 2 near the first bracket 311. In this embodiment, the middle portion of the backrest mounting bracket 2 is hinged to the portion of the second bracket 312 far away from the first bracket 311, one end of the first linkage member 33 is hinged to one end of the backrest mounting bracket 2 near the first bracket 311, and the arrangement enables the first linkage member 33 to drive the backrest mounting bracket 2 to rotate relative to the second bracket 312, so as to adjust the included angle between the seat frame 1 and the backrest mounting bracket 2.

Optionally, one end of the seat frame 1 is hinged with the support rod 32; the linkage assembly 3 further comprises a limiting rod 34, one end of the limiting rod 34 is hinged to the other end of the seat frame 1, and the other end of the limiting rod 34 is hinged to the first support 311. In this embodiment, when the seat frame 1 is driven to move relative to the armrest frame 31, both the limit rod 34 and the support rod 32 can limit the range of movement of the seat frame 1 relative to the armrest frame 31. Meanwhile, the stopper rod 34 can also play a role of supporting the seat frame 1.

Optionally, the seat support further comprises two foot operated telescoping mechanisms 4, and the two foot operated telescoping mechanisms 4 are respectively hinged with the two seat frames 1. In this embodiment, the foot-operated retracting mechanism 4 has an extended state and a retracted state. Specifically, the pedal extension mechanism 4 includes a connecting rod assembly, a main pedal 42 and an auxiliary pedal assembly 43, and the connecting rod assembly drives the main pedal 42 and the auxiliary pedal assembly 43 to extend or retract relative to the seat frame 1.

Alternatively, the link assembly includes a first link 411, a second link 412, a third link 413, and a fourth link 414, the first link 411 is hinged to the second link 412, the third link 413 is hinged to the fourth link 414, a middle portion of the second link 412 is hinged to a middle portion of the third link 413 in a crossing manner, the first link 411 and the third link 413 are respectively hinged to the seat frame 1, and the second link 412 and the fourth link 414 are respectively hinged to the main pedal 42. In this embodiment, the seat support further includes a driving rod, two ends of the driving rod are respectively fixedly connected to the two third connecting rods 413, and when the driving rod is driven to move in a direction away from the second support 312, the pedal retracting mechanism 4 is switched from a retracted state to an extended state.

Optionally, the linkage assembly 3 further includes a second linkage member 35, one end of the second linkage member 35 is fixedly connected or movably connected with the pedal telescopic mechanism 4, and the other end is fixedly connected or movably connected with the armrest frame 31 or the support rod 32; the second link member 35 has elasticity. In this embodiment, the second linkage member 35 functions in the seat support to ensure that the seat support is switched among the sitting posture mode, the extended posture mode and the lying posture mode during driving.

Specifically, when moving from the sitting posture mode to the extended posture mode, the second linkage member 35 is gradually shortened from the elongated state (energy release process), and assists the pedal retracting mechanism 4 to switch from the retracted state to the extended state. Then, from the extended posture mode to the recumbent posture mode, the second linkage member 35 is gradually elongated from the shortened position (energy charging process). When the user returns from the lying posture mode to the stretching posture mode, the seat frame 1 and the pedal telescopic mechanism 4 are firstly sunk to the position due to the dual functions of the gravity of the user and the pulling force of the second linkage member 35. Finally, from the extended posture mode to the sitting posture mode, the foot-operated extension and retraction mechanism 4 starts to switch from the extended state to the retracted state.

Specifically, in fig. 1, 3 and 5, the other end of the second linkage member 35 is hooked to the armrest frame 31, and fig. 2, 4 and 6 are other embodiments of the present embodiment, in which the other end of the second linkage member 35 is hooked to the support rod 32.

Optionally, the foot operated telescoping mechanism 4 further comprises a transmission linkage 44; one end of the transmission connecting piece 44 is connected with the first link 411 in a transmission manner, and the other end of the transmission connecting piece 44 is fixedly connected or movably connected with the second linkage 35. In this embodiment, when the force applied to the driving rod is removed, the second linkage member 35 drives the transmission connecting member 44 to move, so that the transmission connecting member 44 drives the first link 411 to rotate, and the main pedal 42 and the sub-pedal assembly 43 are switched from the extended state to the retracted state more smoothly. Specifically, the other end of the transmission connecting member 44 and the second linkage member 35 may be connected in a manner of clamping, hooking, or the like.

Optionally, one end of the second linkage member 35 is fixedly connected to the transmission connecting member 44, and the other end of the second linkage member 35 is fixedly connected to the first bracket 311 or the support rod 32. In this embodiment, one end of the second linkage member 35 is hooked to the transmission connecting member 44, and the other end of the second linkage member 35 is hooked to the first bracket 311 or the support bar 32.

Optionally, the auxiliary pedal assembly 43 comprises an auxiliary pedal 431 and an auxiliary connecting rod 432, wherein both ends of the auxiliary connecting rod 432 are respectively hinged with the auxiliary pedal 431 and the main pedal 42, and the middle part of the fourth connecting rod 414 is hinged with the main pedal 42; an end of the fourth link 414 remote from the third link 413 is hinged to the sub-pedal 431. In this embodiment, when the main pedal 42 is switched to the extended state, the fourth connecting rod 414 drives the sub-pedal 431 to move, so that the sub-pedal 431 and the main pedal 42 are both in the extended state.

The seat support also comprises a driving piece which drives the driving rod to move along the horizontal direction or the vertical direction. Specifically, the driving member is a linear motor.

Concretely, a sofa comprises the seat support, wherein the backrest mounting frame 2 is used for mounting a backrest, the seat frame 1 is used for mounting a cushion, and the armrest frame 31 is used for mounting an armrest.

The sofa has three modes, namely a sitting posture mode, an extending posture mode and a lying posture mode, when the sofa is switched from the sitting posture mode to the extending posture mode, the driving piece drives the driving rod to move towards the direction far away from the second bracket 312, and then the pedal extension mechanism 4 is in an extending state. When the sofa is switched from the stretching posture mode to the lying posture mode, the driving member drives the driving rod, so that the seat frame 1 moves in a direction away from the first bracket 311. When the sofa is switched from the stretching posture mode to the lying posture mode, the supporting rod 32 drives the first linkage member 33 to move, and then the first linkage member 33 drives the backrest mounting frame 2 to rotate relative to the second bracket 312, so that the included angle between the backrest mounting frame 2 and the seat frame 1 is increased. And the included angle between the backrest and the cushion is enlarged. When the lying posture mode is switched to the sitting posture mode, the force applied to the driving rod is removed. Under the action of the body weight of the person, the seat frame 1 moves towards the direction close to the first support 311, and at the same time, the support rod 32 drives the first linkage member 33 to move, so that the included angle between the backrest installation frame 2 and the seat frame 1 is reduced. At the same time, the foot-operated retracting mechanism 4 is switched from the extended state to the retracted state by the second linkage member 35.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A seat support comprises a seat frame (1), a backrest mounting frame (2) and a linkage assembly (3), and is characterized in that the linkage assembly (3) comprises an armrest frame (31), a supporting rod (32) and a first linkage member (33), the backrest mounting frame (2) is hinged to the armrest frame (31), one end of the supporting rod (32) is hinged to the armrest frame (31), two ends of the first linkage member (33) are hinged to the other end of the supporting rod (32) and one end, close to the seat frame (1), of the backrest mounting frame (2) respectively, and a position between two hinge points at two ends of the supporting rod (32) is hinged to the seat frame (1);

seat frame (1), back mounting bracket (2) and linkage subassembly (3) are established to two sets of and relative setting.

2. The seat support according to claim 1, characterized in that it further comprises two foot operated telescoping mechanisms (4), the two foot operated telescoping mechanisms (4) being hinged to the two seat frames (1) in a one-to-one correspondence.

3. The seat support according to claim 1 or 2, characterized in that the armrest frame (31) comprises a first support (311) and a second support (312), one end of the first support (311) and one end of the second support (312) are fixedly connected with each other, the first support (311) is horizontally arranged, and the second support (312) is arranged at an included angle with the first support (311);

the backrest mounting frame (2) is hinged to one end, away from the first support (311), of the second support (312), and one end of the supporting rod (32) is hinged to the first support (311).

4. The seat support according to claim 3, characterized in that one end of the first linkage member (33) is hinged to one end of the backrest mount (2) close to the first bracket (311).

5. Seat support according to claim 3, characterized in that one end of the seat frame (1) is hinged to the support bar (32);

the linkage assembly (3) further comprises a limiting rod (34), one end of the limiting rod (34) is hinged to the other end of the seat frame (1), and the other end of the limiting rod (34) is hinged to the first support (311).

6. The seat support according to claim 2, wherein the linkage assembly (3) further comprises a second linkage member (35), one end of the second linkage member (35) is fixedly or movably connected with the pedal telescopic mechanism (4), and the other end is fixedly or movably connected with the armrest frame (31) or the support rod (32);

the second linkage member (35) has elasticity.

7. Seat support according to claim 6, characterized in that said pedal retraction mechanism (4) comprises a linkage assembly, a main pedal (42) and an auxiliary pedal assembly (43), said linkage assembly bringing said main pedal (42) and said auxiliary pedal assembly (43) to extend or retract with respect to said seat frame (1).

8. The seat support according to claim 7, characterized in that said linkage assembly comprises a first link (411), a second link (412), a third link (413) and a fourth link (414), said first link (411) being hinged with said second link (412), said third link (413) being hinged with said fourth link (414), a middle portion of said second link (412) being hinged crosswise with a middle portion of said third link (413), said first link (411) and third link (413) being hinged with said seat frame (1), respectively, said second link (412) and fourth link (414) being hinged with said main footrest (42), respectively.

9. Seat support according to claim 8, characterized in that said foot operated telescoping mechanism (4) further comprises a transmission connection (44); one end of the transmission connecting piece (44) is in transmission connection with the first connecting rod (411), and the other end of the transmission connecting piece (44) is fixedly connected or movably connected with the second linkage piece (35).

10. The seat support according to claim 8, characterized in that the auxiliary footrest assembly (43) comprises an auxiliary footrest (431) and an auxiliary link (432), both ends of the auxiliary link (432) are respectively hinged with the auxiliary footrest (431) and the main footrest (42), and a middle portion of the fourth link (414) is hinged with the main footrest (42); one end of the fourth connecting rod (414) far away from the third connecting rod (413) is hinged with the auxiliary pedal (431).