CN216316615U - Seat mechanical support structure, telescopic unit and seat - Google Patents
Seat mechanical support structure, telescopic unit and seat Download PDFInfo
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- CN216316615U CN216316615U CN202121198813.8U CN202121198813U CN216316615U CN 216316615 U CN216316615 U CN 216316615U CN 202121198813 U CN202121198813 U CN 202121198813U CN 216316615 U CN216316615 U CN 216316615U
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- 230000007246 mechanism Effects 0.000 claims description 32
- 238000009434 installation Methods 0.000 claims description 11
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a mechanical seat supporting structure, a telescopic unit and a seat, which comprise a base, a linkage supporting structure and a seat side plate; the first supporting piece and the second supporting piece of the linkage supporting structure are respectively and rotatably connected to two ends of the base, and two ends of the middle connecting piece are respectively connected with the swinging piece and the linkage piece; the swing piece is provided with a first connecting point, a second connecting point and a third connecting point, the swing piece is rotatably connected with the first supporting piece at the first connecting point, the third connecting point is connected with the seat side plate, the distance between the second connecting point and the third connecting point is L1, the distance between the second connecting point and the first connecting point is L2, and the ratio range of L1 to L2 is 0.6-0.7. The length of the swinging piece extending forwards is increased, the height of the linkage supporting structure is reduced after the swinging piece extends, the seat height can be further reduced, the extending distance of the backrest is increased, and an extending space does not need to be reserved behind the backrest.
Description
Technical Field
The utility model belongs to the technical field of seats, and particularly relates to a seat mechanical support structure, a telescopic unit and a seat.
Background
At present, the multifunctional sofa or the chair becomes furniture widely used in intelligent home life, and the multifunctional sofa can be adjusted to a contraction position in a normal sitting posture, an extension position in which only legs extend and a lying posture position in which legs or a back completely extend according to different requirements of a user for sitting, leisure and lying for rest.
The existing functional seat is high and large in size, the arrangement of a seat back is not flexible enough, a sufficient gap needs to be reserved behind the seat back, and the occupied space is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the whole seat height of the seat is higher and the movement clearance required behind the backrest frame of the seat is larger due to the fact that the movement space is larger when the extension length of the traditional seat supporting structure is ensured.
In order to achieve the above object, the present invention provides a mechanical seat supporting structure, which includes a base, a linkage supporting structure and a seat side plate, wherein the linkage supporting structure is rotatably connected between the base and the seat side plate;
the linkage supporting structure comprises a first supporting piece, a swinging piece, a middle connecting piece, a linkage piece and a second supporting piece, wherein the first supporting piece and the second supporting piece are respectively connected to two ends of the base in a rotating manner, and two ends of the middle connecting piece are respectively connected with the swinging piece and the linkage piece;
the swing piece is provided with a first connecting point, a second connecting point and a third connecting point, the swing piece is rotatably connected with the first supporting piece at the first connecting point, the third connecting point is connected with the seat side plate, the distance between the second connecting point and the third connecting point is L1, the distance between the second connecting point and the first connecting point is L2, and the ratio range of L1 to L2 is 0.6-0.7.
Furthermore, an included angle α between a connecting line between the second connecting point and the third connecting point and a connecting line between the second connecting point and the first connecting point is an acute angle.
Furthermore, a linkage point is arranged on the linkage piece, the middle connecting piece is connected with the swinging piece at the second connecting point, and the other end of the middle connecting piece is connected with the linkage piece at the linkage point.
Further, when the linkage support structure is retracted to an extreme position, a distance H1 from the linkage point to the base is greater than or equal to a distance H2 from the second connection point to the base.
Furthermore, a limiting part is arranged on the seat side plate, and when the supporting structure extends to the limit position, the swinging part is abutted against the limiting part.
Further, the outer side face of the seat side plate is provided with a seat frame installation face, and when the supporting structure is contracted to the limit position, the distance H3 between the seat frame installation face and the bottom face of the base is smaller than 19 cm.
The utility model also provides a seat telescopic unit which comprises a backrest mechanism and the supporting structure, wherein the backrest mechanism is rotationally connected with the seat side plate, the backrest mechanism comprises a backrest installation part and a backrest linkage part, one end of the backrest installation part is rotationally connected with the seat side plate, and the other end of the backrest installation part is connected with the backrest linkage part.
Further, the back installed part includes the back installation department, works as when the telescopic unit extends to extreme position, the contained angle beta of back installation department and horizontal plane is less than 35.
The chair further comprises a leg mechanism, the leg mechanism is rotatably connected with the seat side plate, and when the leg mechanism and the backrest mechanism extend to the limit positions, the height of the highest point of the leg mechanism is larger than that of the highest point of the backrest mechanism.
The utility model also provides a seat, which comprises a backrest frame and the telescopic unit, wherein the backrest frame is connected with the backrest installation part.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, through the proportional arrangement of the connection points of the swinging pieces in the linkage supporting structure, the forward extending length of the swinging pieces is increased, the height of the linkage supporting structure is reduced after the swinging pieces are extended, and the seat height can be further reduced under the condition of ensuring the extending distance of the supporting structure.
The backrest mechanism of the utility model has increased backward rotation angle and increased backrest extension distance, and the rear part of the seat does not need to reserve extension space, so that the backrest mechanism can be placed against the wall, and the space is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical means in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a telescopic unit according to the present embodiment;
FIG. 2 is a schematic structural diagram of the supporting structure of the present embodiment;
FIG. 3 is another side view of the telescopic unit of the present embodiment;
FIG. 4 is a schematic view of the telescoping unit of this embodiment in a fully retracted and fully extended position;
FIG. 5 is a schematic view of the position of the trailing edge of the back rest of the seat of this embodiment in its fully retracted and fully extended positions;
fig. 6 is a schematic structural diagram of a seat according to the embodiment.
In the figures, the reference numbers are: 1-base, 2-linkage support structure, 21-first support part, 22-swinging part, 221-first connecting point, 222-second connecting point, 223-third connecting point, 23-middle connecting part, 24-linkage part, 241-linkage point, 242-support connecting point, 243-side plate connecting point, 244-back connecting point, 25-second support part, 3-seat side plate, 31-seat frame mounting surface, 32-limiting part, 4-backrest mechanism, 41-backrest mounting part, 42-backrest linkage part, 40-backrest frame and 401-backrest tail edge.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In addition, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be connected directly or indirectly through an intermediate medium, or the two elements may be connected through an internal member. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
As shown in fig. 1 to 4, an embodiment of the present invention provides a mechanical seat support structure, which includes a base 1, a linkage support structure 2 and a seat side plate 3, wherein the linkage support structure 2 is rotatably connected between the base 1 and the seat side plate 3; the linkage supporting structure 2 comprises a first supporting piece 21, a swinging piece 22, a middle connecting piece 23, a linkage piece 24 and a second supporting piece 25, wherein the first supporting piece 21 and the second supporting piece 25 are respectively connected to two ends of the base 1 in a rotating manner, and two ends of the middle connecting piece 23 are respectively connected with the swinging piece 22 and the linkage piece 24;
the swinging piece 22 is provided with a first connecting point 221, a second connecting point 222 and a third connecting point 223, the swinging piece 22 is rotatably connected with the first supporting piece 21 at the first connecting point 221, and is connected with the seat side plate 3 at the third connecting point 223, the distance from the second connecting point 222 to the third connecting point 223 is L1, the distance from the second connecting point 222 to the first connecting point 221 is L2, and the ratio range of L1 to L2 is 0.6-0.7.
Specifically, an angle α between a line connecting the second connection point 222 and the third connection point 223 and a line connecting the second connection point 222 and the first connection point 221 is an acute angle. Preferably, the angle between the line connecting the second connection point 222 and the third connection point 223 and the line connecting the second connection point 222 and the first connection point 221 is 70 °, 72 °, 76 ° or 80 °.
In the present embodiment, by limiting the position of the connection point of the swinging member 22 with the first stay and the seat side plate 3, the moving distance and the rotation angle of the swinging member 22 are increased, and the length extending forward can be further increased compared to the conventional structure. As shown in FIG. 4, the pendulum extends a distance L3 from the fully retracted extreme position to the fully extended extreme position, wherein L3 is greater than 16 cm. Preferably, it may be 16.5cm, 17cm or 18 cm.
Specifically, a linkage point 241 is disposed on the linkage 24, the intermediate connecting element 23 is connected to the swinging element 22 at the second connecting point 222, and the other end of the intermediate connecting element 23 is connected to the linkage 24 at the linkage point 241. Specifically, when the linkage support structure 2 is retracted to the extreme position, the distance H1 from the linkage point 241 to the base 1 is greater than or equal to the distance H2 from the second connection point 222 to the base 1. In particular, the distance between the points of attachment on the oscillating element 22 varies so that the height of the second point of attachment is lowered and therefore also the height of the intermediate connecting element 23 connected thereto varies, so that the centre of gravity of the movement of the intermediate connecting element 23 carried by the oscillating element during the contraction and expansion is in a more stable position and the expansion distance is increased.
Specifically, the seat side plate 3 is provided with a limiting member 32, and when the supporting structure extends to the limit position, the swinging member 22 abuts against the limiting member 32. The outer side of the seat side plate 3 is provided with a seat frame mounting surface 31, and when the supporting structure is contracted to the limit position, the distance H3 between the seat frame mounting surface 31 and the bottom surface of the base 1 is less than 19 cm. The seat attachment surface 31 is used for attaching a seat frame of a sofa or a seat, and the seat frame attachment surface 31 is disposed obliquely with respect to the base. Preferably, the distance H3 from the seat frame mounting surface 31 to the bottom surface of the base 1 in the embodiment may be 15cm, 16cm or 18cm, so that the design requirement of the low-height sofa style can be met.
This embodiment still provides a seat telescoping unit, including back mechanism 4 and bearing structure, back mechanism 4 with seat curb plate 3 rotates to be connected, back mechanism 4 includes back installed part 41 and back interlock piece 42, the one end of back installed part 41 with seat curb plate 3 rotates to be connected, the other end of back installed part 41 with back interlock piece 42 is connected.
In particular, the backrest mount 41 comprises a backrest mounting portion 411, the backrest mounting portion 411 being at an angle β of less than 35 ° to the horizontal when the telescopic unit is extended to the extreme position. Preferably, it may be 30 °, 32 ° or 34 °. In the present embodiment, the angle of rearward rotation of the backrest mount 41 is increased, the angle of the backrest mount 411 to the horizontal is decreased, and the seat head is lowered compared to the conventional structure.
Specifically, the chair further comprises a leg mechanism 5, wherein the leg mechanism 5 is rotatably connected with the seat side plate 3, and when the leg mechanism 5 and the backrest mechanism 4 are both extended to the extreme positions, the height of the highest point of the leg mechanism 5 is greater than that of the highest point of the backrest mechanism 4. Specifically, shank mechanism 5 includes footrest spare and the flexible connecting rod extending structure of drive footrest spare, connecting rod extending structure is connected with seat curb plate 3. In this embodiment, when the seat is extended to the lying position, the height of the leg rest is greater than the height of the highest point of the backrest mounting portion 411, so that the requirement of the seat with a high leg raising function is met.
The present embodiment also provides a chair, as shown in fig. 5 to 6, comprising a back frame 40 and the telescopic unit, wherein the back frame 40 is connected to the back mounting member 41. The backrest frame 40 comprises a backrest trailing edge 401, when the telescopic unit is in the fully retracted extreme position, the plane of the backrest trailing edge 401 is an initial plane, and in the process of rotation of the backrest frame along with the telescopic unit, the movement of the backrest trailing edge 401 does not exceed the initial plane.
Specifically, in this embodiment, the distance that the backrest mechanism tilts back during the extension process is offset by the linkage of the support structure and the seat side plate driving the backrest mechanism to translate forward and upward, saving space behind the backrest mechanism to the maximum extent, so that the backrest frame 40 of the seat can be set close to the adjacent object behind with zero clearance, such as placed against a wall. Here, "zero gap" refers to an effect achieved by saving space.
In the embodiment, the structure of the swinging piece is changed, the forward extending length of the swinging piece is increased by setting the proportion of the connecting points of the swinging piece, the height of the linkage supporting structure is reduced after the swinging piece extends, and the seat height is further reduced.
Compared with the traditional seat, the seat provided by the utility model has the advantages that under the condition of meeting the requirement of low seat height, the backrest frame can be designed into a T-shaped backrest frame, the T-shaped backrest frame can rotate around the armrest, the backrest is designed more flexibly, and the backrest can be placed in the rear of the backrest without leaning against the wall, so that the space is saved.
The seat comprises two groups of telescopic units which have the same structure and are oppositely arranged, can be controlled by a manual zipper, can also be driven by a driving device, and can meet different requirements of users by controlling position adjustment through a remote switch or an electric control button. The telescopic unit can be applied to furniture members such as sofas, seats and the like, and comprises but is not limited to single-person or multi-person furniture members, sofas and combined furniture members.
In this embodiment, "front" and "rear" refer to the orientations that a user takes when using the sofa or chair of the present invention, i.e., the direction in which the user faces when using the chair is "front" and the side opposite to this direction is "rear".
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A seat mechanical support structure is characterized by comprising a base (1), a linkage support structure (2) and a seat side plate (3), wherein the linkage support structure (2) is rotatably connected between the base (1) and the seat side plate (3);
the linkage supporting structure (2) comprises a first supporting piece (21), a swinging piece (22), a middle connecting piece (23), a linkage piece (24) and a second supporting piece (25), the first supporting piece (21) and the second supporting piece (25) are respectively and rotatably connected to two ends of the base (1), and two ends of the middle connecting piece (23) are respectively connected with the swinging piece (22) and the linkage piece (24);
the swing piece (22) is provided with a first connecting point (221), a second connecting point (222) and a third connecting point (223), the swing piece (22) is rotatably connected with the first supporting piece (21) at the first connecting point (221), the third connecting point (223) is connected with the seat side plate (3), the distance from the second connecting point (222) to the third connecting point (223) is L1, the distance from the second connecting point (222) to the first connecting point (221) is L2, and the ratio range of L1 to L2 is 0.6-0.7.
2. A mechanical support structure for a seat according to claim 1, characterized in that the angle α between the line connecting said second connection point (222) to said third connection point (223) and the line connecting said second connection point (222) to said first connection point (221) is acute.
3. A mechanical seat support structure according to claim 1, wherein a linkage point (241) is provided on the linkage member (24), the intermediate connecting member (23) is connected to the swinging member (22) at the second connecting point (222), and the other end of the intermediate connecting member (23) is connected to the linkage member (24) at the linkage point (241).
4. A seat mechanical support structure according to claim 3, characterized in that the distance H1 from the linkage point (241) to the base (1) when the linkage support structure (2) is retracted to the extreme position is greater than or equal to the distance H2 from the second connection point (222) to the base (1).
5. A mechanical support structure for a seat according to claim 1, characterized in that a stop (32) is provided on the seat side plate (3), and when the support structure is extended to the extreme position, the oscillating member (22) interferes with the stop (32).
6. A mechanical seat support structure according to claim 1, wherein the outer side of the seat side plate (3) is provided with a seat frame mounting surface (31), and when the support structure is retracted to the extreme position, the distance H3 from the seat frame mounting surface (31) to the bottom surface of the base (1) is less than 19 cm.
7. Seat extension unit, characterized in that it comprises a backrest structure (4) and a support structure according to any one of claims 1-6, said backrest structure (4) being rotatably connected to said seat side plate (3);
the backrest mechanism (4) comprises a backrest installation part (41) and a backrest linkage part (42), one end of the backrest installation part (41) is rotatably connected with the seat side plate (3), and the other end of the backrest installation part (41) is connected with the backrest linkage part (42).
8. A seat extension unit according to claim 7, wherein the backrest mounting (41) comprises a backrest mounting portion (411), the backrest mounting portion (411) being at an angle β of less than 35 ° to the horizontal when the extension unit is extended to the extreme position.
9. Seat extension unit according to claim 7, further comprising a leg mechanism (5), wherein the leg mechanism (5) is pivotally connected to the seat side plate (3), wherein the height of the highest point of the leg mechanism (5) is larger than the height of the highest point of the backrest mechanism (4) when both the leg mechanism (5) and the backrest mechanism (4) are extended to the extreme positions.
10. A seat comprising a backrest frame (40) and a telescopic unit according to any of claims 8-9, said backrest frame (40) being connected to said backrest mounting (41).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121198813.8U CN216316615U (en) | 2021-05-31 | 2021-05-31 | Seat mechanical support structure, telescopic unit and seat |
| 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 |
|---|---|---|---|
| CN202121198813.8U CN216316615U (en) | 2021-05-31 | 2021-05-31 | Seat mechanical support structure, telescopic unit and seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216316615U true CN216316615U (en) | 2022-04-19 |
Family
ID=81159192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121198813.8U Active CN216316615U (en) | 2021-05-31 | 2021-05-31 | Seat mechanical support structure, telescopic unit and seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216316615U (en) |
-
2021
- 2021-05-31 CN CN202121198813.8U patent/CN216316615U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215200 west side of Tongjin Avenue, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Ruimai Technology Co.,Ltd. Country or region after: China Address before: 215200 west side of Tongjin Avenue, Wujiang Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: REMACRO MACHINERY & TECHNOLOGY (WUJIANG) Co.,Ltd. Country or region before: China |