CN113142870B - Seat stretching device capable of being stretched in prolonged mode - Google Patents
Seat stretching device capable of being stretched in prolonged mode Download PDFInfo
- Publication number
- CN113142870B CN113142870B CN202110603981.9A CN202110603981A CN113142870B CN 113142870 B CN113142870 B CN 113142870B CN 202110603981 A CN202110603981 A CN 202110603981A CN 113142870 B CN113142870 B CN 113142870B
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- linkage
- backrest
- transmission
- seat
- transmission shaft
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- 230000002035 prolonged effect Effects 0.000 title description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 112
- 230000005540 biological transmission Effects 0.000 claims abstract description 77
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 230000005484 gravity Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 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
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- 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
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- 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
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair 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 stretching device capable of stretching in an extending mode, which comprises a base, a linkage mechanism, a linkage side plate, a leg mechanism, a backrest mechanism, a transmission mechanism and a driving mechanism, wherein the transmission mechanism comprises a bracket assembly, a transmission shaft and a transmission connecting rod assembly; the driving mechanism comprises a driving motor, a sliding rail and a sliding block, the sliding rail is arranged in parallel with the horizontal plane, and the sliding block is connected with the transmission shaft through a bracket component; the sliding travel of the sliding block is 26cm-33cm when the leg mechanism and the backrest mechanism are driven from the retracted position to the fully extended limit position. The driving process of the driving mechanism is more stable and smooth, the pushing precision and the pushing efficiency are increased, and the comfort level of the seat is improved.
Description
Technical Field
The application belongs to the technical field of seats, and particularly relates to a seat stretching device capable of being stretched in an extending mode.
Background
Along with the increasing living standard of people, the requirements on intelligent furniture such as multifunctional sofas, seats and the like are also increasing. The kinetic energy sofa and chair can be adjusted between a sitting position, an extended position with only the legs extended, and a lying position with the legs and back fully extended.
However, in the conventional seat stretching device, the normal posture conversion process is not smooth, the driving stroke of the seat driving device is large, the stretching distance is not large, the installation position of the driving device is high, the occupied installation space is large, and the gravity center of the seat bracket is easy to be unstable.
Disclosure of Invention
The application aims to solve the problems that the existing seat driving mechanism has larger installation space and higher installation position, so that the center of gravity of the seat is unstable, the driving stroke is larger, and the pushing precision and efficiency are low.
In order to achieve the above-mentioned purpose, the present application provides a seat stretching device capable of extending, comprising a base, a linkage mechanism, a linkage side plate, a leg mechanism, a backrest mechanism, a transmission mechanism and a driving mechanism, wherein the linkage mechanism is rotatably connected to the base, the linkage side plate is rotatably connected to the linkage mechanism, and the leg mechanism and the backrest mechanism are rotatably connected to two ends of the linkage side plate respectively;
the transmission mechanism comprises a bracket assembly, a transmission shaft and a transmission connecting rod assembly, wherein the end part of the transmission shaft is in transmission connection with the leg mechanism through the transmission connecting rod assembly, one end of the bracket assembly is connected with the middle part of the transmission shaft, and the other end of the bracket assembly is connected with the driving mechanism;
the driving mechanism comprises a driving motor, a sliding rail and a sliding block, the sliding rail is arranged in parallel with the horizontal plane, and the sliding block is connected with the transmission shaft through the bracket component; the sliding travel of the slider is 26cm-33cm when the leg mechanism and the backrest mechanism are driven from the retracted position to the fully extended limit position.
Further, when the seat extension device is fully retracted to the limit position, the distance H1 from the transmission shaft to the bottom surface of the base ranges from 10cm to 12cm;
when the seat extension device is fully extended to the extreme position, the distance H2 from the drive shaft to the bottom surface of the base ranges from 16cm to 18cm.
Further, when the sliding block drives the transmission shaft from the fully contracted limit position to the fully extended limit position, the distance L1 of the forward movement of the transmission shaft is more than or equal to 20cm.
Further, the backrest mechanism comprises a backrest mounting member and a backrest linkage member;
the two ends of the backrest mounting piece are respectively connected between the linkage side plate and the backrest linkage piece in a rotating mode, the backrest linkage piece is connected with the linkage mechanism, and backrest mounting points are arranged on the backrest mounting piece.
Further, the linkage mechanism, the linkage side plate, the leg mechanism and the backrest mechanism are two and are oppositely arranged on the base.
Further, the base comprises a first fixing seat, a second fixing seat and two oppositely arranged bases;
the two ends of the first fixing seat are respectively connected with one ends of the two bases, and the two ends of the second fixing seat are respectively connected with the other ends of the two bases.
Further, one end of the sliding rail is fixed on the first fixing seat, the other end of the sliding rail is connected with the driving motor, and the driving motor is fixed on the second fixing seat.
Further, the bracket component comprises a first connecting piece, a middle connecting piece and a second connecting piece which are connected in sequence;
the first connecting piece is used for being connected with the driving mechanism, and the second connecting piece is used for being connected with the transmission shaft.
Further, the length of the transmission shaft is greater than the distance between the two linkage side plates.
Further, the transmission connecting rod assembly comprises a first transmission piece and a second transmission piece which are connected in a rotating way; the first transmission piece is connected with the transmission shaft, and the second transmission piece is connected with the leg mechanism.
Compared with the prior art, the application has the following beneficial effects:
according to the application, both ends of the driving mechanism are fixed on the base, the sliding rail of the driving mechanism is parallel to the horizontal plane, the gravity center of the driving mechanism is close to the base, and the sliding block linearly slides on the sliding rail in the driving process, so that the driving process is more stable and smooth.
The driving mechanism is matched with the transmission mechanism, so that the pushing precision and pushing efficiency are improved, the sliding stroke is increased under the condition of lower transmission shaft height, the extension length of the backrest mechanism and the leg mechanism is prolonged, the support for the legs and feet is increased, and the comfort is improved.
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 a seat extension apparatus according to the present embodiment;
FIG. 2 is a schematic view showing a part of the structure of the seat stretching device of the present embodiment;
FIG. 3 is a schematic view of the extension device of the present embodiment in a retracted position and extended to an extreme position;
FIG. 4 is a schematic view of the seat extension apparatus of the present embodiment fully extended to the extreme position;
FIG. 5 is a schematic view of the seat extension apparatus of the present embodiment in a retracted position;
FIG. 6 is a schematic view of the seat of the present embodiment in a retracted position and extended to an extreme position;
fig. 7 is a schematic view of the structure of the seat according to the present embodiment.
In the drawings, reference numerals are: the device comprises a base, a first fixing seat, a second fixing seat, a base, a 2-linkage mechanism, a first supporting piece, a second supporting piece, a swinging piece, a middle connecting piece, a 24-linkage piece, a second supporting piece, a 3-linkage side plate, a 4-leg mechanism, a 41-telescopic connecting rod assembly, a 42-foot rest piece, a 5-backrest mechanism, a 51-backrest mounting piece, a 511-backrest mounting point, a 52-backrest linkage piece, a 6-transmission mechanism, a 61-bracket assembly, a 611-first connecting piece, a 612-middle connecting piece, a 613-second connecting piece, a 62-transmission shaft, a 621-fixing piece, a 63-transmission connecting rod assembly, a 631-first transmission piece, a 632-second transmission piece, a 633-limiting piece, a 7-driving mechanism, a 71-driving motor, a 72-sliding rail, a 73-sliding block, an 8-backrest frame and a 81-backrest tail edge.
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 stretching device capable of extending and stretching, which comprises a base 1, a linkage mechanism 2, a linkage side plate 3, a leg mechanism 4, a backrest mechanism 5, a transmission mechanism 6 and a driving mechanism 7, wherein the linkage mechanism 2 is rotatably connected to the base 1, the linkage side plate 3 is rotatably connected to the linkage mechanism 2, and the leg mechanism 4 and the backrest mechanism 5 are rotatably connected to two ends of the linkage side plate 3 respectively;
the transmission mechanism 6 comprises a bracket assembly 61, a transmission shaft 62 and a transmission connecting rod assembly 63, wherein the end part of the transmission shaft 62 is in transmission connection with the leg mechanism 4 through the transmission connecting rod assembly 63, one end of the bracket assembly 61 is connected with the middle part of the transmission shaft 62, and the other end of the bracket assembly 61 is used for being connected with the driving mechanism 7;
the driving mechanism 7 comprises a driving motor 71, a sliding rail 72 and a sliding block 73, wherein the sliding rail 72 is arranged in parallel with the horizontal plane, and the sliding block 73 is connected with the transmission shaft 62 through the bracket assembly 61; the sliding travel of the sliding block 73 is 26cm-33cm when the leg mechanism 4 and the backrest mechanism 5 are driven from the retracted position to the fully extended limit position. Preferably, the sliding travel of the sliding block 73 may be 26cm, 27cm, 28cm, 30cm or 33cm.
Specifically, when the seat extension device is fully retracted to the extreme position, the distance H1 from the drive shaft 62 to the bottom surface of the base 1 ranges from 10cm to 12cm; when the seat extension device is fully extended to the extreme position, the distance H2 from the drive shaft 62 to the bottom surface of the base 1 ranges from 16cm to 18cm. Preferably, when the seat extension device is fully retracted to the extreme position, the distance H1 from the transmission shaft 62 to the bottom surface of the base 1 is 11cm, and when the seat extension device is fully extended to the extreme position, the distance H2 from the transmission shaft 62 to the bottom surface of the base 1 is 17cm.
Specifically, when the slide block 73 drives the drive shaft 62 from the fully contracted limit position to the fully extended limit position, the drive shaft 62 moves forward by a distance L1 of 20cm or more. Preferably L1 may be 20cm, 22cm or 25cm. For example, in some embodiments, when the maximum sliding travel of the sliding block 73 is 28cm, the transmission shaft 62 is driven to move forward by a distance greater than 20cm.
The driving mechanism 7 of the present embodiment cooperates with the transmission mechanism 6 so that in the case where the height of the transmission shaft 62 is lower, the sliding travel of the transmission shaft 62 driven by the slider 73 is longer, the seat back mechanism and leg mechanism are extended by an increased distance, and the pushing accuracy and pushing efficiency are higher.
It should be noted that, the traditional push rod motor needs to be installed on the base in an inclined way, and the stroke of the push rod is long. One end of the sliding rail on the traditional seat is a free end, when the sliding block slides on the sliding rail, the sliding rail swings relative to the base, so that the driving gravity center changes, the driving process is easy to shake and clip, and the driving is unstable. Compared with the traditional driving mechanism, the sliding rail 72 of the driving mechanism 7 of the embodiment is arranged in parallel with the horizontal plane, both ends of the sliding rail 72 are fixed, the driving motor 71 drives the sliding block 73 to linearly slide on the sliding rail 72, the height of the transmission shaft 62 is lower, the center of gravity of the transmission and the center of gravity of the driving mechanism 7 are close to the base, the driving process is more stable and smooth, and the pushing precision is improved.
Specifically, when the seat extension device is fully extended to the extreme position, the backrest mounting point 511 is a distance L of 102cm to 112cm from the distal point of the leg mechanism 4. Preferably, it may be 102cm, 104cm, 108cm, 110cm or 112cm. The greater the distance from the backrest mounting point 511 to the distal end point of the leg mechanism 4, the longer the seat is fully extended, so that full support of the legs and feet can be achieved, the legs and feet can be relaxed, and comfort can be improved.
Specifically, the leg mechanism 4 includes a telescopic link assembly 41 and a foot rest 42, the telescopic link assembly 41 is rotatably connected to the front end of the linkage side plate 3, and the telescopic link assembly 41 drives the foot rest 42 to extend or retract in front of the linkage side plate 3. When extended to the extreme position, the distal end of leg mechanism 4 is on foot rest 42.
Specifically, the backrest mechanism 5 includes a backrest mount 51 and a backrest linkage 52; the two ends of the backrest mounting member 51 are respectively and rotatably connected between the linkage side plate 3 and the backrest linkage member 52, the backrest linkage member 52 is connected with the linkage mechanism 2, and the backrest mounting member 51 is provided with a backrest mounting point 511. The backrest mount 51 is connected to the backrest frame 8 at a backrest mounting point 511.
In this embodiment, as shown in fig. 3 and 6, the rear edge of the backrest frame 8 is the backrest tail edge 81, and a plane perpendicular to the horizontal plane where the backrest tail edge 81 is located when the seat extension device is retracted to the limit position is defined as an initial plane, and the movement of the backrest tail edge 81 does not exceed the initial plane during the movement of the backrest frame 8 by the backrest mechanism 5. The seat using the seat telescopic device can be placed close to an adjacent object behind the seat with zero clearance, so that the space is saved.
In some embodiments, as shown in fig. 7, the back frame 8 may be provided as a T-shaped back frame having two wings and being rotatable about the armrest of the chair. In other embodiments, the back rest 8 may also be provided as a frame structure having a width between two armrests.
Specifically, the number of the linkage mechanism 2, the linkage side plate 3, the leg mechanism 4 and the backrest mechanism 5 is two, and the two mechanisms are oppositely arranged on the base 1. The base 1 comprises a first fixed seat 11, a second fixed seat 12 and two oppositely arranged bases 13; two ends of the first fixing seat 11 are respectively connected with one ends of the two bases 13, and two ends of the second fixing seat 12 are respectively connected with the other ends of the two bases 13.
Specifically, one end of the sliding rail 72 is fixed on the first fixing seat 11, the other end of the sliding rail 72 is connected with the driving motor 71, and the driving motor 71 is fixed on the second fixing seat 12.
Specifically, the bracket assembly 61 includes a first connection member 611, an intermediate connection member 612, and a second connection member 613, which are sequentially connected; the first connecting piece 611 is used for connecting with the driving mechanism 7, and the second connecting piece 613 is used for connecting with the transmission shaft 62.
Specifically, a fixing piece 621 is provided at the middle of the driving shaft 62, and the driving shaft 62 is connected to the bracket assembly 61 through the fixing piece 621. The length of the transmission shaft 62 is longer than the distance between the two linked side plates 3. In particular, the drive shaft 62 may be a drive square tube.
In some embodiments, a through hole is provided on the linkage side plate 3, and an end of the transmission shaft 62 is connected to a first transmission member 632 provided outside the linkage side plate 3 through the through hole.
In other embodiments, a groove is provided below the side link plate 3 through which the drive shaft 62 passes. The end of the transmission shaft 62 passes through the groove and is connected with a first transmission member 632 provided outside the link side plate 3.
Specifically, the drive link assembly 63 includes a first drive member 631 and a second drive member 632 that are rotatably coupled; the first transmission member 631 is connected to the transmission shaft 62, and the second transmission member 632 is connected to the leg mechanism 4. The first transmission member 631 is provided with a limiting member 633, and when the expansion device is contracted to the limit position, the limiting member 633 abuts against the second transmission member 632.
It should be noted that, the length of the transmission shaft 62 is greater than the distance between the two linkage side plates 3, so that the transmission link assembly 63 is connected with the leg mechanism outside the linkage side plates 3, interference between parts in the moving process caused by small space inside the linkage side plates is avoided, and the moving space is increased, so that the distance that the first transmission member 631 and the second transmission member 632 drive the leg mechanism 4 to extend is longer.
Specifically, the linkage mechanism 2 includes a first support member 21, a swinging member 22, a middle connecting member 23, a linking member 24, and a second support member 25, where the first support member 21 and the second support member 25 are respectively rotatably connected to two ends of the base 13, and the middle connecting member 23 is respectively connected to the swinging member 22 and the linking member 24. The linking member 14 is connected to the middle connecting member 23, the linked side plate 3, the backrest linking member 52, and the second supporting member 25, respectively.
The two ends of the sliding rail are fixed on the base, the sliding rail is arranged in parallel with the horizontal plane, the gravity center of the driving mechanism is close to the base, and the sliding block linearly slides on the sliding rail in the driving process, so that the stability and smoothness of the driving process are improved. The driving mechanism and the transmission mechanism are combined to ensure that the sliding block keeps sliding on a straight line parallel to the horizontal plane, so that the extension distance of the backrest mechanism and the leg mechanism is prolonged, and the support of the legs and feet is increased.
The seat driving mechanism can control the driving motor to rotate positively and negatively through the remote control switch or the electric control button, so that the posture of the seat is adjusted, and different requirements of users are met.
In this embodiment, "front" and "rear" refer to the orientations that a user takes when using a sofa or seat that includes the seat retracting device of the present application, i.e., the direction that 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 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 (8)
1. The seat stretching device capable of being stretched in an extending mode is characterized by comprising a base (1), a linkage mechanism (2), a linkage side plate (3), a leg mechanism (4), a backrest mechanism (5), a transmission mechanism (6) and a driving mechanism (7), wherein the linkage mechanism (2) is rotationally connected to the base (1), the linkage side plate (3) is rotationally connected with the linkage mechanism (2), and the leg mechanism (4) and the backrest mechanism (5) are respectively rotationally connected to two ends of the linkage side plate (3);
the leg mechanism (4) comprises a telescopic connecting rod assembly (41) and a foot rest (42), the telescopic connecting rod assembly (41) is rotatably connected to the front end of the linkage side plate (3), and the telescopic connecting rod assembly (41) drives the foot rest (42) to extend or retract in front of the linkage side plate (3); the backrest mechanism (5) comprises a backrest mounting member (51) and a backrest linkage member (52); the two ends of the backrest mounting piece (51) are respectively and rotatably connected between the linkage side plate (3) and the backrest linkage piece (52), and the backrest linkage piece (52) is connected with the linkage mechanism (2);
the transmission mechanism (6) comprises a bracket assembly (61), a transmission shaft (62) and a transmission connecting rod assembly (63), wherein the end part of the transmission shaft (62) is in transmission connection with the leg mechanism (4) through the transmission connecting rod assembly (63), one end of the bracket assembly (61) is connected with the middle part of the transmission shaft (62), and the other end of the bracket assembly (61) is connected with the driving mechanism (7); the bracket assembly (61) comprises a first connecting piece (611), an intermediate connecting piece (612) and a second connecting piece (613) which are sequentially connected, wherein the first connecting piece (611) is connected with the driving mechanism (7), and the second connecting piece (613) is connected with the transmission shaft (62);
the driving mechanism (7) comprises a driving motor (71), a sliding rail (72) and a sliding block (73), wherein the sliding rail (72) is arranged in parallel with the horizontal plane, and the sliding block (73) is connected with the transmission shaft (62) through the bracket assembly (61); when the leg mechanism (4) and the backrest mechanism (5) are driven from the retracted position to the fully extended limit position, the sliding travel of the sliding block (73) is 26cm-33cm, and the distance L1 by which the transmission shaft (62) moves forward is 20cm or more.
2. An extendable seat extension apparatus according to claim 1, wherein the distance H1 from the drive shaft (62) to the bottom surface of the base (1) when the seat extension apparatus is fully retracted to the extreme position is in the range of 10cm-12cm;
when the seat extension device is fully extended to a limit position, the distance H2 from the transmission shaft (62) to the bottom surface of the base (1) ranges from 16cm to 18cm.
3. An extendable seat extension apparatus according to claim 1, wherein the backrest mounting means (51) is provided with backrest mounting points (511).
4. The seat extension device capable of being extended according to claim 1, wherein the linkage mechanism (2), the linkage side plate (3), the leg mechanism (4) and the backrest mechanism (5) are two and are oppositely arranged on the base (1).
5. An extendable seat extension device according to claim 1, wherein the base (1) comprises a first fixed seat (11), a second fixed seat (12) and two oppositely disposed bases (13);
the two ends of the first fixing seat (11) are respectively connected with one ends of the two bases (13), and the two ends of the second fixing seat (12) are respectively connected with the other ends of the two bases (13).
6. The extendable seat extension apparatus as claimed in claim 5, wherein one end of the slide rail (72) is fixed to the first fixing base (11), the other end of the slide rail (72) is connected to the driving motor (71), and the driving motor (71) is fixed to the second fixing base (12).
7. An extendable seat extension apparatus according to claim 1, wherein the length of the drive shaft (62) is greater than the distance between the two cooperating side plates (3).
8. The extendable seat extension apparatus of claim 1, wherein the drive link assembly (63) comprises a first drive member (631) and a second drive member (632) rotatably connected; the first transmission member (631) is connected to the transmission shaft (62), and the second transmission member (632) is connected to the leg mechanism (4).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603981.9A CN113142870B (en) | 2021-05-31 | 2021-05-31 | Seat stretching device capable of being stretched in prolonged mode |
| KR1020237041294A KR20240004776A (en) | 2021-05-31 | 2022-03-15 | Interlocks, brackets, seat units and seats for zero back-to-back clearance |
| PCT/CN2022/081000 WO2022252747A1 (en) | 2021-05-31 | 2022-03-15 | Linkage device for implementing no backrest clearance, support, seat unit, and seat |
| JP2023573219A JP2024519174A (en) | 2021-05-31 | 2022-03-15 | Linkage device, bracket, seat unit, and seat for achieving zero backrest clearance |
| 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 |
|---|---|---|---|
| CN202110603981.9A CN113142870B (en) | 2021-05-31 | 2021-05-31 | Seat stretching device capable of being stretched in prolonged mode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113142870A CN113142870A (en) | 2021-07-23 |
| CN113142870B true CN113142870B (en) | 2023-11-03 |
Family
ID=76875527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110603981.9A Active CN113142870B (en) | 2021-05-31 | 2021-05-31 | Seat stretching device capable of being stretched in prolonged mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113142870B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252747A1 (en) * | 2021-05-31 | 2022-12-08 | 锐迈机械科技（吴江）有限公司 | Linkage device for implementing no backrest clearance, support, seat unit, and seat |
| CN113796687B (en) * | 2021-08-18 | 2024-03-15 | 锐迈科技股份有限公司 | Seat leg oblique folding device, seat support and seat unit |
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| CN103637579A (en) * | 2013-12-24 | 2014-03-19 | 黄小卫 | Electric and mechanical stretching device of movable sofa |
| CN109602205A (en) * | 2018-12-29 | 2019-04-12 | 东莞市捷科五金有限公司 | A kind of back horizontal lying-type Folding sofa frame |
| CN112293997A (en) * | 2020-09-11 | 2021-02-02 | 永艺家具股份有限公司 | Power stretching device |
| CN212521294U (en) * | 2020-06-13 | 2021-02-12 | 德沃康科技集团有限公司 | Leg placing plate assembly and intelligent sofa mechanical stretching device |
| CN212698294U (en) * | 2020-07-30 | 2021-03-16 | 顾家家居股份有限公司 | Leg supporting mechanism and sofa stretching device with same |
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2021
- 2021-05-31 CN CN202110603981.9A patent/CN113142870B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103637579A (en) * | 2013-12-24 | 2014-03-19 | 黄小卫 | Electric and mechanical stretching device of movable sofa |
| CN109602205A (en) * | 2018-12-29 | 2019-04-12 | 东莞市捷科五金有限公司 | A kind of back horizontal lying-type Folding sofa frame |
| CN212521294U (en) * | 2020-06-13 | 2021-02-12 | 德沃康科技集团有限公司 | Leg placing plate assembly and intelligent sofa mechanical stretching device |
| CN212698294U (en) * | 2020-07-30 | 2021-03-16 | 顾家家居股份有限公司 | Leg supporting mechanism and sofa stretching device with same |
| CN112293997A (en) * | 2020-09-11 | 2021-02-02 | 永艺家具股份有限公司 | Power stretching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113142870A (en) | 2021-07-23 |
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