CN113116072B - Seat support and seat unit for zero back clearance - Google Patents
Seat support and seat unit for zero back clearance Download PDFInfo
- Publication number
- CN113116072B CN113116072B CN202110601360.7A CN202110601360A CN113116072B CN 113116072 B CN113116072 B CN 113116072B CN 202110601360 A CN202110601360 A CN 202110601360A CN 113116072 B CN113116072 B CN 113116072B
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- backrest
- side plate
- linkage
- point
- mounting
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- 230000007246 mechanism Effects 0.000 claims abstract description 83
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
- A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/54—Supports for the arms
- A47C7/541—Supports for the arms of adjustable type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The application discloses a seat support and a seat unit for zero back clearance, which comprise a linkage mechanism, a mounting side plate and a back mechanism, wherein the mounting side plate is provided with a back point and a side plate linkage point, the mounting side plate is rotationally connected with the linkage mechanism at the side plate linkage point, and the mounting side plate is rotationally connected with the back mechanism at the back point; the backrest mechanism comprises a backrest mounting piece and a backrest linkage piece, two ends of the backrest mounting piece are respectively and rotatably connected between a backrest point and the backrest linkage piece, and when the backrest mechanism is contracted to a limit position, an included angle alpha between a connecting line of two end points of the backrest mounting piece and a connecting line of the backrest point and a side plate linkage point is an acute angle. The seat support can meet the design of seats of different styles, and the backrest frame of the seat unit can be arranged close to the wall with zero clearance, so that the space can be saved and the attractiveness can be improved.
Description
Technical Field
The application belongs to the technical field of seats, and particularly relates to a seat support and a seat unit for zero backrest clearance.
Background
The multifunctional sofa or the seat becomes furniture widely used in smart home life, and the multifunctional sofa can be adjusted to a contracted position when sitting normally, an extended position in which only legs are extended and a lying position in which the legs and the back are fully extended.
In the mechanical telescoping device used for adjusting the position in the prior art, if the backrest wall of the seat is placed, when the backrest mechanism rotates backwards to a lying position, the backrest frame can touch the adjacent wall, and the rotation of the backrest mechanism can be interfered. The existing functional seat capable of being placed by a zero-clearance wall can limit the extension of legs and a backrest, or limit the angle adjustment of a backrest mechanism and a backrest frame, so that the comfort of the seat is poor, and the existing seat backrest with the backrest adjusting function is single in style.
Disclosure of Invention
The application aims to solve the problems that the backrest of the chair cannot be arranged by a wall with zero clearance or the backrest angle is limited to be adjusted and the comfort is poor in the prior art.
In order to achieve the above-mentioned purpose, the present application proposes a seat support for zero back clearance, comprising a linkage mechanism, a mounting side plate and a back rest mechanism, wherein the mounting side plate is provided with a back rest point and a side plate linkage point, the mounting side plate is rotatably connected with the linkage mechanism at the side plate linkage point, and the mounting side plate is rotatably connected with the back rest mechanism at the back rest point;
the backrest mechanism comprises a backrest mounting piece and a backrest linkage piece, two ends of the backrest mounting piece are respectively connected between the backrest point and the backrest linkage piece in a rotating mode, and when the backrest mechanism is contracted to a limiting position, an included angle alpha between a connecting line of two ends of the backrest mounting piece and a connecting line of the backrest point and the side plate linkage point is an acute angle.
Further, a backrest connecting portion is provided at one end of the mounting side plate connected to the backrest mechanism, and the backrest point is provided on the backrest connecting portion.
Further, when the backrest mechanism is contracted to the limit position, an included angle alpha between the connecting line of the two end points of the backrest mounting piece and the connecting line of the backrest point and the side plate connecting point is smaller than 70 degrees.
Further, when the backrest mechanism extends to the limit position, an included angle beta between a connecting line of two end points of the backrest mounting piece and a connecting line of the backrest point and the side plate connecting point is smaller than 45 degrees.
Further, the backrest mounting member is provided with a protruding frame mounting portion for mounting a backrest frame of a seat, and when the seat support is extended to the limit position, an included angle γ between the frame mounting portion and a horizontal plane is 35 ° or less.
Further, the link gear includes base, first support piece, swinging member, middle part connecting piece, interlock piece and second support piece, the base both ends respectively with first support piece and second support piece rotate to be connected, the middle part connecting piece is connected respectively swinging member and interlock piece, swinging member rotates to be connected on the installation curb plate.
The application also provides a seat unit which comprises a backrest frame, an armrest support and the seat support, wherein the backrest frame is connected with the backrest mechanism, and the armrest support is arranged on two sides of the backrest frame.
Preferably, when the armrest support is fixed relative to the mounting side plate, the back frame includes a back tail, and a body portion, the back tail having a lateral width greater than the body portion, the body portion being for connection with the back mechanism.
Preferably, when the armrest support is fixed relative to the base, the back frame includes a back body having a lateral width that is less than a distance between two of the armrest supports.
Further, when the backrest mechanism is contracted to the limit position, the plane where the backrest tail edge is located is an initial plane, and in the process that the backrest mechanism drives the backrest frame to move, the movement of the backrest tail edge does not exceed the initial plane.
Compared with the prior art, the application has the following beneficial effects:
according to the application, the angle relation between the backrest connecting part and the backrest mounting part is limited, so that the distance that the backrest mechanism is driven by the linkage mechanism and the mounting side plate to translate forwards and upwards in the stretching process of the seat support can offset the distance generated by the backward rotation of the backrest mechanism under the condition that the stretching length of the seat is ensured, and the backrest frame of the seat unit can be arranged against a wall in a zero clearance manner, so that the space is saved.
The seat support can be used for a seat style with a T-shaped backrest frame with a large tail wing and a movable armrest, can also be used for a seat style with the armrest falling to the ground, and can meet the design of seats of different styles.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical manner in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being apparent that the drawings in the description which follow are only some embodiments of the application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the structure of a seat support according to the present embodiment;
FIG. 2 is a schematic view of the linkage mechanism and the backrest mechanism of the present embodiment;
FIG. 3 is a schematic view showing the structure of the seat support of the present embodiment extended to the extreme position;
fig. 4 is a schematic structural view of a seat unit having a T-shaped back frame of the present embodiment;
fig. 5 is a schematic structural view of the armrest floor seat unit according to the present embodiment.
In the drawings, reference numerals are: the device comprises a 1-linkage mechanism, a 11-base, a 12-first support piece, a 13-swinging piece, a 14-middle connecting piece, a 15-linkage piece, a 16-second support piece, a 2-mounting side plate, a 3-backrest mechanism, a 21-backrest connecting part, a 22-side plate main body, a 31-backrest mounting piece, a 311-frame mounting part, a 32-backrest connecting piece, a 40-backrest frame, a 401-backrest tail edge, a 402-backrest tail wing, a 403-main body part, a 404-backrest main body and a 50-armrest bracket.
Detailed Description
The objects, technical solutions and advantages of the present application will become more apparent by the following detailed description of the present application with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the application.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In addition, in the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and the like should be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication of two element internals. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
As shown in fig. 1 to 5, an embodiment of the present application provides a seat support for zero back clearance, which includes a linkage mechanism 1, a mounting side plate 2 and a back rest mechanism 3, wherein the mounting side plate 2 is rotatably connected to the linkage mechanism 1, and the back rest mechanism 3 is rotatably connected to the mounting side plate 2; the mounting side plate 2 is provided with a backrest point 211 and a side plate linkage point 212, the mounting side plate 2 is rotatably connected with the linkage mechanism 1 at the side plate linkage point 212, and the mounting side plate 2 is rotatably connected with the backrest mechanism 3 at the backrest point 211;
the backrest mechanism 3 comprises a backrest mounting member 31 and a backrest linkage member 32, wherein two ends of the backrest mounting member 31 are respectively and rotatably connected between the backrest point 211 and the backrest linkage member 32, and when the backrest mechanism 3 is contracted to a limit position, an included angle alpha between a connecting line of two end points of the backrest mounting member 31 and a connecting line of the backrest point 211 and the side plate linkage point 212 is an acute angle.
Specifically, the end of the mounting side plate 2 connected to the backrest mechanism 3 is provided with a backrest connecting portion 21, and the backrest point 211 is provided on the backrest connecting portion 21. The mounting side plate 2 includes an L-shaped side plate body 22, and the side plate body 22 is integrally formed with or fixedly connected to the backrest connecting portion 21. In this embodiment, a seat frame mounting surface is further disposed on the outer side of the mounting side plate 2, and the seat frame mounting surface is used for mounting the seat frame, and the height of the seat frame mounting surface to the bottom surface of the seat is less than 19cm, preferably 16cm, 17cm or 18cm. The height of the mounting surface of the seat frame meets the requirements of a low-seat high seat.
Preferably, in the present embodiment, when the backrest mechanism 3 is contracted to the limit position, the angle α between the two end point connecting lines of the backrest mount 31 and the backrest connecting portion 21 is less than 70 °, preferably 48 °,50 °, 55 °, 60 °, 65 °, or 68 °. When the backrest mechanism 3 is extended to the extreme position, the angle β between the two end points of the backrest mount 31 and the backrest connecting portion 21 is smaller than 45 °. Preferably 30 °, 35 °,40 ° or 43 °. The connection line between the two end points of the backrest mounting member 31 and the connection line between the backrest point 211 and the side plate connection point 212 are used for positioning and limiting the angle of the backrest frame, and the angle change of the backrest mechanism in the embodiment ensures that the distance that the backrest mechanism drives the backrest frame to move forward in the stretching process is greater than or equal to the distance generated by the backward rotation of the backrest frame.
Specifically, the backrest mounting member 31 is provided with a protruding frame mounting portion 311, the frame mounting portion 311 is configured to mount the backrest frame 40 of the seat, and when the seat support is extended to the limit position, an angle γ between the frame mounting portion 311 and the horizontal plane is 35 ° or less. Preferably, in the present embodiment, the angle γ between the frame mounting portion 311 and the horizontal plane may be 30 °,32 ° or 35 ° when extended to the limit position, and the angle between the back rest mounting member 31 and the horizontal plane is reduced, that is, the angle of the back rest mounting member is increased, further increasing the total extension length of the back rest mechanism 3.
Specifically, the linkage mechanism 1 includes a base 11, a first support 12, a swinging member 13, a middle connecting member 14, a linkage member 15 and a second support 16, two ends of the base 11 are respectively connected with the first support 12 and the second support 16 in a rotating manner, the middle connecting member 14 is respectively connected with the swinging member 13 and the linkage member 15, and the swinging member 13 is connected to the mounting side plate 2 in a rotating manner. Specifically, one end of the swinging member is connected with the mounting side plate 2, the other end of the swinging member is connected with the first support member 12, four connection points are arranged on the linking member 15, and the swinging member is respectively connected with the middle connecting member 14, the mounting side plate 2, the second support member 16 and the backrest linking member 32 in a rotating manner.
In this embodiment, the seat support further includes a leg mechanism rotatably connected in front of the mounting side plate, the leg mechanism being capable of expanding and contracting in front of the mounting side plate. The driving mechanism drives the leg mechanism to extend forwards so as to drive the linkage mechanism 1, the mounting side plates and the backrest mechanism to move and adjust, so that the seat support can move among the sitting position, the extending position and the lying position. Wherein, the leg mechanism and the backrest mechanism are completely contracted to the limit positions in the sitting posture state; the leg mechanism extends forwards in the extending posture; the leg mechanism and the backrest mechanism are fully extended to the extreme positions in the recumbent position.
The present embodiment further provides a seat unit, which includes a backrest frame 40, an armrest support 50, and the seat support, wherein the backrest frame 40 is connected to the backrest mechanism 3, and the armrest support 50 is disposed on two sides of the backrest frame 40.
In one embodiment, as shown in fig. 4, when the armrest support 50 is fixed relative to the mounting side plate 2, i.e., the armrest support 50 is a follower armrest that moves with the mounting side plate 2. The back frame 40 includes a back tail 401, a back tail 402, and a main body 403, the back tail 402 having a lateral width greater than that of the main body 403, the main body 403 being configured to be coupled to the back mechanism 3. During the process that the backrest mechanism 3 drives the backrest frame 40 to move, the backrest tail 402 rotates around the armrest support 50. When the backrest mechanism 3 is retracted to the limit position, the plane where the backrest tail edge 401 is located is an initial plane, and the movement of the backrest tail edge 401 does not exceed the initial plane in the process that the backrest mechanism 3 drives the backrest frame 40 to move. The seat can be designed into a seat style with a T-shaped backrest with a large tail wing and armrests which follow.
In another embodiment, as shown in fig. 5, when the armrest support 50 is fixed relative to the base 11, the back frame 40 includes a back body 404, and the lateral width of the back body 404 is less than the distance between the armrest supports 50. The armrest support is fixed to a horizontal plane, that is, the armrest support is landed, and may be referred to as an armrest landing type seat. When the backrest mechanism 3 is retracted to the limit position, the plane where the backrest tail edge 401 is located is an initial plane, and the movement of the backrest tail edge 401 does not exceed the initial plane in the process that the backrest mechanism 3 drives the backrest frame 40 to move. When configured as a floor style armrest seat, the armrest support is stationary during position adjustment and the back frame 40 translates and rotates between the armrests on both sides.
Specifically, in this embodiment, the distance generated by the backward rotation and inclination of the backrest mechanism during the extension process is offset by the linkage mechanism 1 and the mounting side plate driving the backrest mechanism to translate forward and upward, so that the space behind the backrest mechanism is saved to the greatest extent, and thus the backrest frame 40 can be set close to the rear adjacent object with zero clearance, such as being placed against a zero wall, where "zero clearance" refers to the effect achieved by saving space.
According to the application, the angle relation between the backrest connecting part and the backrest mounting part is limited, so that the backrest frame of the seat unit can be arranged against a wall in a zero clearance manner under the condition that the stretching length of the seat is ensured, and the linkage mechanism and the mounting side plate drive the backrest mechanism to translate forwards and upwards in the stretching process of the seat support, so that the distance generated by the backward rotation of the backrest mechanism can be counteracted.
The seat support can be used for a seat style with a T-shaped backrest frame with a large tail wing and with the armrests being follow-up, can also be used for a seat style with the armrests falling to the ground, and can meet the design of seats of different styles.
The seat unit of the embodiment comprises two groups of seat support structures which are identical and oppositely arranged, the seat support can be driven by manual zipper control, and can also be driven by a driving device, and the position adjustment is controlled by a remote control switch or an electric control button so as to meet different requirements of users. The seat support of the present application may be applied to furniture components such as sofas, seats and the like, and includes, but is not limited to, single or multi-person furniture components, sofas, modular furniture components.
In this embodiment, "front" and "rear" refer to the orientations that a user takes when using a seating unit that includes the present application, i.e., the direction that the user faces when using the seating unit is "front" and the opposite direction is "rear".
It is to be understood that the above-described embodiments of the present application are merely illustrative of or explanation of the principles of the present application and are in no way limiting of the application. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application should be included in the scope of the present application.
Claims (9)
1. The seat support for the zero back clearance is characterized by comprising a linkage mechanism (1), a mounting side plate (2) and a back rest mechanism (3), wherein a back rest point (211) and a side plate linkage point (212) are arranged on the mounting side plate (2), the mounting side plate (2) is rotationally connected with the linkage mechanism (1) at the side plate linkage point (212), and the mounting side plate (2) is rotationally connected with the back rest mechanism (3) at the back rest point (211);
one end of the mounting side plate (2) connected with the backrest mechanism (3) is provided with a backrest connecting part (21), the mounting side plate (2) comprises an L-shaped side plate main body (22), the side plate main body (22) and the backrest connecting part (21) are integrally formed or fixedly connected, and the backrest point (211) is arranged on the backrest connecting part (21);
the backrest mechanism (3) comprises a backrest mounting piece (31) and a backrest linkage piece (32), one end of the backrest mounting piece (31) is connected with the backrest connecting portion (21) at the backrest point (211), the other end of the backrest mounting piece (31) is connected with the backrest linkage piece (32), the backrest linkage piece (32) is connected with the linkage piece (15) of the linkage mechanism (1), and when the backrest mechanism (3) is contracted to the limiting position, an included angle alpha between two end point connecting lines of the backrest mounting piece (31) and connecting lines of the backrest point (211) and the side plate linkage point (212) is an acute angle.
2. A seat support for zero back clearance according to claim 1, characterized in that the angle α between the two end points of the back mount (31) and the connection of the back point (211) and the side plate connection point (212) is less than 70 ° when the back mechanism (3) is retracted to the extreme position.
3. A seat support for zero back clearance according to claim 1, characterized in that the angle β between the connection of the two end points of the back mount (31) and the connection of the back point (211) and the side plate connection point (212) is less than 45 ° when the back mechanism (3) is extended to the extreme position.
4. A seat support for zero back clearance according to claim 1, characterized in that the back rest mounting (31) is provided with protruding frame mounting parts (311), the frame mounting parts (311) being for mounting the back rest frame of the seat, the frame mounting parts (311) having an angle γ with the horizontal plane of 35 ° or less when the seat support is extended to an extreme position.
5. A seat support for zero back clearance according to claim 1, characterized in that the linkage (1) comprises a base (11), a first support (12), a swinging member (13), a middle connecting member (14), a linkage member (15) and a second support (16);
the two ends of the base (11) are respectively connected with the first supporting piece (12) and the second supporting piece (16) in a rotating mode, the middle connecting piece (14) is respectively connected with the swinging piece (13) and the linkage piece (15), and the swinging piece (13) is connected to the installation side plate (2) in a rotating mode.
6. A seating unit comprising a back frame (40), a armrest support (50) and a seat support according to any one of claims 1-5, wherein the back frame (40) is connected to the back mechanism (3), and wherein the armrest support (50) is arranged on both sides of the back frame (40).
7. A seat unit according to claim 6, wherein the back frame (40) comprises a back tail (401), a back tail (402) and a main body (403) when the armrest support (50) is fixed relative to the mounting side plate (2), the back tail (402) having a lateral width greater than the main body (403), the main body (403) being adapted to be connected to the back mechanism (3).
8. A seating unit according to claim 6, wherein the back frame (40) comprises a back trailing edge (401) and a back body (404) when the armrest brackets (50) are fixed relative to the base (11), the back body (404) having a lateral width less than the distance between two of the armrest brackets (50).
9. A seating unit according to claim 7 or 8, wherein the plane in which the back-rest trailing edge (401) lies is an initial plane when the back-rest mechanism (3) is retracted to an extreme position, the back-rest trailing edge (401) not moving beyond the initial plane during movement of the back-rest frame (40) by the back-rest mechanism (3).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110601360.7A CN113116072B (en) | 2021-05-31 | 2021-05-31 | Seat support and seat unit for zero back clearance |
| KR1020237041294A KR20240004776A (en) | 2021-05-31 | 2022-03-15 | Interlocks, brackets, seat units and seats for zero back-to-back clearance |
| JP2023573219A JP2024519174A (en) | 2021-05-31 | 2022-03-15 | Linkage device, bracket, seat unit, and seat for achieving zero backrest clearance |
| PCT/CN2022/081000 WO2022252747A1 (en) | 2021-05-31 | 2022-03-15 | Linkage device for implementing no backrest clearance, support, seat unit, and seat |
| US18/523,879 US20240090668A1 (en) | 2021-05-31 | 2023-11-30 | Linkage Device for Implementing No Backrest Clearance, Supporting Frame, Seat Unit, and Seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110601360.7A CN113116072B (en) | 2021-05-31 | 2021-05-31 | Seat support and seat unit for zero back clearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113116072A CN113116072A (en) | 2021-07-16 |
| CN113116072B true CN113116072B (en) | 2023-11-24 |
Family
ID=76782830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110601360.7A Active CN113116072B (en) | 2021-05-31 | 2021-05-31 | Seat support and seat unit for zero back clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113116072B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240004776A (en) * | 2021-05-31 | 2024-01-11 | 레마크로 머시너리 앤드 테크놀로지(우지앙) 컴퍼니 리미티드 | Interlocks, brackets, seat units and seats for zero back-to-back clearance |
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| CN105193120A (en) * | 2015-08-13 | 2015-12-30 | 黄小卫 | Multifunctional theater chair device |
| CN206792105U (en) * | 2016-06-29 | 2017-12-26 | 浙江恒林椅业股份有限公司 | A kind of overturning-preventing bi-motor couch |
| CN108836001A (en) * | 2018-07-24 | 2018-11-20 | 锐迈机械科技（吴江）有限公司 | Low seat height is servo-actuated sofa device |
| CN210276569U (en) * | 2018-07-24 | 2020-04-10 | 锐迈机械科技（吴江）有限公司 | Zero-clearance mechanical stretching device |
| CN210748189U (en) * | 2019-07-26 | 2020-06-16 | 成都思达特电器有限公司 | Electric seat adjusting linkage mechanism and seat stretching adjusting device |
| CN111887653A (en) * | 2020-08-31 | 2020-11-06 | 江苏大象智能制造有限公司 | Mechanical stretching device of zero-wall imperial concubine chair and imperial concubine chair |
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2021
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193120A (en) * | 2015-08-13 | 2015-12-30 | 黄小卫 | Multifunctional theater chair device |
| CN206792105U (en) * | 2016-06-29 | 2017-12-26 | 浙江恒林椅业股份有限公司 | A kind of overturning-preventing bi-motor couch |
| CN108836001A (en) * | 2018-07-24 | 2018-11-20 | 锐迈机械科技（吴江）有限公司 | Low seat height is servo-actuated sofa device |
| CN210276569U (en) * | 2018-07-24 | 2020-04-10 | 锐迈机械科技（吴江）有限公司 | Zero-clearance mechanical stretching device |
| CN210748189U (en) * | 2019-07-26 | 2020-06-16 | 成都思达特电器有限公司 | Electric seat adjusting linkage mechanism and seat stretching adjusting device |
| CN111887653A (en) * | 2020-08-31 | 2020-11-06 | 江苏大象智能制造有限公司 | Mechanical stretching device of zero-wall imperial concubine chair and imperial concubine chair |
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| Publication number | Publication date |
|---|---|
| CN113116072A (en) | 2021-07-16 |
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