CN220477314U - Polyurethane composite cushion - Google Patents
Polyurethane composite cushion Download PDFInfo
- Publication number
- CN220477314U CN220477314U CN202322104975.6U CN202322104975U CN220477314U CN 220477314 U CN220477314 U CN 220477314U CN 202322104975 U CN202322104975 U CN 202322104975U CN 220477314 U CN220477314 U CN 220477314U
- Authority
- CN
- China
- Prior art keywords
- cushion
- layer
- middle layer
- top layer
- bottom layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 20
- 239000004814 polyurethane Substances 0.000 title claims abstract description 20
- 230000007704 transition Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008093 supporting effect Effects 0.000 abstract description 5
- 210000001217 buttock Anatomy 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Abstract
The utility model relates to the technical field of composite cushions, and provides a polyurethane composite cushion which comprises a cushion bottom layer, a cushion middle layer arranged above a cushion bottom layer and a cushion top layer arranged on the cushion middle layer; the hardness of the bottom layer of the cushion is greater than that of the middle layer of the cushion, and the hardness of the middle layer of the cushion is greater than that of the top layer of the cushion; the composite cushion disclosed by the utility model is overlapped by the cushion bottom layer, the cushion middle layer and the cushion top layer with three different hardness, the hardness of the cushion top layer, the cushion middle layer and the cushion bottom layer is gradually improved, wherein the softness of the cushion top layer is best, the fatigue of buttocks can be well relieved, the cushion bottom layer has a good supporting effect, the hardness of the cushion middle layer is between the cushion top layer and the cushion bottom layer, and a good transitional effect can be achieved.
Description
Technical Field
The utility model relates to the technical field of composite cushions, in particular to a polyurethane composite cushion.
Background
Most of common cushions in the market are single-component materials, such as sponge materials, but the common sponge materials have poor sizing degree, so that the comfort level can be ensured in the initial use, but the cushion is easy to collapse after a long time, and the comfort level is reduced; the other is a shaping sponge, which has higher hardness and is not easy to collapse, but has common comfort degree in use due to harder materials; the cushion properties of the one-component material are not excellent.
In view of the above, the present inventors have specifically devised a polyurethane composite cushion, which is produced by this scheme.
Disclosure of Invention
In order to solve the problems, the technical scheme of the utility model is as follows:
a polyurethane composite cushion comprises a cushion bottom layer, a cushion middle layer arranged above a cushion bottom layer and a cushion top layer arranged on the cushion middle layer; the hardness of the bottom layer of the cushion is greater than that of the middle layer of the cushion, and the hardness of the middle layer of the cushion is greater than that of the top layer of the cushion.
Further, the middle layer of the cushion is hollow, the side wall of the top layer of the cushion is propped against the inner side wall of the middle layer of the cushion, and the bottom is propped against the bottom layer of the cushion.
Furthermore, the cushion bottom layer, the cushion middle layer and the cushion top layer are all made of polyurethane materials.
Further, a convex slope peak is arranged at the front end of the middle layer of the cushion.
Further, arc grooves are formed in two sides of the slope peak.
Further, the bottom layer of the cushion is provided with a first plane which is contacted with the lower end face of the middle layer of the cushion.
Further, the bottom layer of the cushion is provided with a second plane which is contacted with the lower end face of the top layer of the cushion.
Further, the first plane and the second plane are directly provided with transition surfaces.
Further, a through hole is formed in the cushion middle layer, and an arc-shaped surface for transition is arranged at an opening at the upper end of the through hole.
Further, the top layer of the cushion is provided with a plurality of protruding points which are arranged side by side, and the horizontal cross section of each protruding point is Y-shaped.
Further, the outer surface of the composite cushion is sleeved with a cloth sleeve, so that the inner part is protected.
The composite cushion disclosed by the utility model is overlapped by the cushion bottom layer, the cushion middle layer and the cushion top layer with three different hardness, the hardness of the cushion top layer, the cushion middle layer and the cushion bottom layer is gradually improved, wherein the softness of the cushion top layer is best, the fatigue of buttocks can be well relieved, the cushion bottom layer has a good supporting effect, the hardness of the cushion middle layer is between the cushion top layer and the cushion bottom layer, and a good transitional effect can be achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model.
Wherein:
FIG. 1 is a schematic view of the structure of a composite seat cushion of the present utility model;
FIG. 2 is a cross-sectional view of the composite seat cushion of the present utility model;
fig. 3 is an exploded view of the composite seat cushion of the present utility model.
Description of the reference numerals:
10. a cushion bottom layer; 11. a first plane; 12. a second plane; 13. a transition surface; 20. a cushion middle layer; 21. slope peak; 22. an arc-shaped groove; 23. a through hole; 231. an arc surface; 30. a top layer of the cushion; 31. and (5) protruding points.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 to 3, a polyurethane composite seat cushion according to a preferred embodiment of the present utility model includes a seat bottom layer 10, a seat middle layer 20 disposed above the seat bottom layer 10, and a seat top layer 30 disposed on the seat middle layer 20; the hardness of the cushion bottom layer 10 is greater than that of the cushion middle layer 20, and the hardness of the cushion middle layer 20 is greater than that of the cushion top layer 30; the cushion middle layer 20 is hollow, the side wall of the cushion top layer 30 is propped against the inner side wall of the cushion middle layer 20, the bottom is propped against the cushion bottom layer 10, namely, a through hole 23 is arranged in the cushion middle layer 20, and an opening at the upper end of the through hole 23 is provided with an arc-shaped surface 231 for transition.
The cushion bottom layer 10, the cushion middle layer 20 and the cushion top layer 30 are made of polyurethane, so that the cushion bottom layer 10, the cushion middle layer 20 and the cushion top layer 30 are not only high in strength, but also good in air permeability, soft in touch sense and excellent in flame retardant effect. The high-molecular high-activity polyether polyol is added into the cushion bottom layer 10, the diameters of the produced sponge cells are mixed and distributed, the thickness of the skeleton is different, the large aperture ratio is realized, and the rebound force with different supporting forces can be generated under different deformation states when the cushion bottom layer is pressed; a small amount of low molecular weight polyether is added into the sponge formula of the cushion top layer 30, and the mode of increasing the content of grafted polyether achieves the sponge with super-strong softness; the sponge in the middle layer 20 of the cushion can be used as a bridge for bearing the upper layer and the lower layer just by adjusting different proportions of catalysts and adhesives and increasing the openness of the foam holes.
The front end of the cushion middle layer 20 is provided with a convex slope peak 21, two sides of the slope peak 21 are provided with arc-shaped grooves 22, and the cushion bottom layer 10 is provided with a first plane 11 which is contacted with the lower end surface of the cushion middle layer 20; the middle of the middle layer 20 of the cushion is provided with a convex slope peak 21 which gradually inclines towards two sides, so that different people can adjust the front and back positions of sitting according to the needs of the people after sitting on the cushion, and the effect of relieving fatigue of legs is achieved.
The cushion bottom layer 10 is provided with a second plane 12 which is contacted with the lower end surface of the cushion top layer 30; the first plane 11 and the second plane 12 are directly provided with the transition surface 13, and the transition surface 13 and the arc-shaped surface 231 cooperate to provide good support for the side wall of the cushion top layer 30.
The cushion top layer 30 is provided with a plurality of protruding points 31 which are arranged side by side, the horizontal cross section of the protruding points 31 is in a Y shape, the massage and anti-fatigue function is achieved, and the cushion top layer 30 is matched with softness, so that hip fatigue can be well relieved, and the cushion top layer is good in air permeability. The outer surface of the composite cushion is sleeved with a cloth sleeve, so that the composite cushion has a protective effect on the interior.
The composite cushion adopts three types of polyurethane with different hardness to be overlapped, can be directly compounded in sequence or is bonded by adopting strong glue, and specifically comprises a cushion bottom layer 10 which is used for supporting and has high hardness and certain elasticity, a cushion middle layer 20 with an ergonomic structure and a cushion top layer 30 positioned in the middle, wherein the upper surface of the cushion top layer 30 is provided with particle convex points 31 or waves; the outer surface of the composite cushion is also covered with the cloth cover, the cushion structure can play a role in resisting fatigue, and meanwhile, the middle part of the cushion is the softest, so that the effect of buffering the vertebra is achieved.
In summary, the composite cushion disclosed by the utility model is overlapped by the cushion bottom layer, the cushion middle layer and the cushion top layer with three different hardness, the hardness of the cushion top layer, the cushion middle layer and the cushion bottom layer is gradually improved, wherein the softness of the cushion top layer is best, the fatigue of buttocks can be well relieved, the cushion bottom layer has a good supporting effect, the hardness of the cushion middle layer is between the cushion top layer and the cushion bottom layer, and a good transitional effect can be achieved.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the utility model are adopted, all within the scope of the utility model.
Claims (9)
1. The polyurethane composite cushion is characterized by comprising a cushion bottom layer (10), a cushion middle layer (20) arranged above the cushion bottom layer (10) and a cushion top layer (30) arranged on the cushion middle layer (20); the hardness of the cushion bottom layer (10) is greater than that of the cushion middle layer (20), the hardness of the cushion middle layer (20) is greater than that of the cushion top layer (30), and a convex slope peak (21) is arranged at the front end of the cushion middle layer (20).
2. A polyurethane composite cushion according to claim 1, wherein the cushion middle layer (20) is hollow, the cushion top layer (30) side wall is abutted against the cushion middle layer (20) side wall, and the bottom is abutted against the cushion bottom layer (10).
3. The polyurethane composite cushion according to claim 1, wherein the cushion bottom layer (10), the cushion middle layer (20) and the cushion top layer (30) are made of polyurethane.
4. A polyurethane composite seat cushion according to claim 1, wherein arc-shaped grooves (22) are arranged on two sides of the sloping peak (21).
5. A polyurethane composite seat according to claim 4, wherein the seat bottom layer (10) is provided with a first plane (11) contacting the lower end face of the seat middle layer (20).
6. A polyurethane composite seat according to claim 5, wherein the seat bottom layer (10) is provided with a second plane (12) in contact with the lower end face of the seat top layer (30).
7. A polyurethane composite cushion according to claim 6, wherein the first plane (11) and the second plane (12) are directly provided with a transition surface (13).
8. A polyurethane composite cushion according to claim 1, wherein a through hole (23) is provided in the middle layer (20) of the cushion, and an arc-shaped surface (231) for transition is provided at an upper end opening of the through hole (23).
9. A polyurethane composite cushion according to claim 1, wherein the cushion top layer (30) is provided with a plurality of bumps (31) arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322104975.6U CN220477314U (en) | 2023-08-07 | 2023-08-07 | Polyurethane composite cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322104975.6U CN220477314U (en) | 2023-08-07 | 2023-08-07 | Polyurethane composite cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220477314U true CN220477314U (en) | 2024-02-13 |
Family
ID=89824031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322104975.6U Active CN220477314U (en) | 2023-08-07 | 2023-08-07 | Polyurethane composite cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220477314U (en) |
-
2023
- 2023-08-07 CN CN202322104975.6U patent/CN220477314U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0252607A (en) | Seat cushion and its manufacture | |
| JP2011235169A (en) | Seat cushion pad for vehicle, seat back pad for vehicle, and seat for vehicle | |
| CN220477314U (en) | Polyurethane composite cushion | |
| CN202664876U (en) | Seat | |
| CN209932105U (en) | Sofa cushion elastic part and sofa with same | |
| JPH0434436B2 (en) | ||
| US20230284780A1 (en) | One-Piece Chair Backs and Chairs Having the Same | |
| CN216293580U (en) | Mattress | |
| CN214341329U (en) | High-elasticity sponge | |
| CN212250925U (en) | Elastic structural member | |
| CN212066252U (en) | Comfortable seat | |
| CN207626906U (en) | A kind of high resiliency Sofa cushion snake spring frame | |
| CN218127716U (en) | Sofa | |
| CN110638241A (en) | Comfortable seat | |
| CN207767933U (en) | The soft or hard adjustable frames of sofa | |
| CN215650126U (en) | Human body contact surface texture design structure of seat product | |
| CN209600329U (en) | A kind of cladding fabric construction of automotive seat | |
| CN201286510Y (en) | Sofa of novel structure | |
| CN218899090U (en) | Double-sided double-sleeping pillow | |
| CN201223180Y (en) | Chair cushion and chair with the same | |
| CN110179277B (en) | Sofa cushion elastic part and sofa with same | |
| CN220088991U (en) | Elastic connecting piece for ergonomic chair | |
| CN204670754U (en) | A kind of sponge sofa structure | |
| CN108464663A (en) | A kind of seat that can adjust comfort level naturally | |
| CN216316635U (en) | Seat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |