CN215304352U

CN215304352U - Waist and back support piece and seat

Info

Publication number: CN215304352U
Application number: CN202120923890.9U
Authority: CN
Inventors: 余夏聪; 郑捷
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-12-28
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a waist and back support piece and a seat, wherein the waist and back support piece is of a long-strip fishbone-shaped structure and comprises a longitudinal main support plate and ribbed plates arranged on the main support plate at intervals; the whole waist and back supporting piece has elasticity, the main supporting plate can be elastically bent and deformed in the vertical direction, and the rib plates can be elastically deformed in the left and right directions; a first rotary joint is formed at the part of the main supporting plate, which is connected with the ribbed plate, and a second rotary joint is formed at the part of the main supporting plate, which is not connected with the ribbed plate; the first rotating joint and the second rotating joint are distributed at intervals along the length direction of the main supporting plate, and the thickness of the first rotating joint is larger than that of the second rotating joint; the lumbar support is directly connected to the seat back assembly. The waist and back support part is similar to the spine structure of a human body, has elasticity as a whole, can be self-adapted to the dynamic sitting posture of the human body when in use, and is actively attached to the waist and the back of the human body; the first and second rotary joints make the main support plate deform more flexibly and lightly, and provide better dynamic support.

Description

Waist and back support piece and seat

Technical Field

The utility model relates to the field of seats, in particular to a waist and back support and a seat.

Background

As a common office chair, at present, a chair conforming to human engineering is widely favored by people, not only enables a user to sit comfortably and relieves fatigue, but also has certain positive effects on the development of human bones and the prevention of lumbar disc herniation. The waist support is an important component of office chairs because the waist is one of the most tired places of human body, and serious lumbar vertebra diseases can be caused if the sitting posture is incorrect for a long time or the structure of the chair is not reasonable. The lumbar of the human body can be supported through the waist support, so that the pressure on the waist of the user is effectively relieved; however, the function of the common waist-protecting office chair in the market is usually limited to the independent adjustment of the height of the waist-protecting chair or the slight adjustment of the angle, and the support and comfort of the waist-protecting office chair cannot meet the requirements of most people.

Because the human body can change various postures when sitting, the waist support also can actively rotate along with the waist and the back of the user to be always attached to the waist of the human body. Most chairs in the market are provided with waist supports, but are mostly fixedly combined with the chair backs, and the waist supports fixedly combined with the chair backs cannot adjust the positions of the waist supports and are mostly made of hard materials; when a user wants to adjust the sitting posture and twists the body, the existing chair back and waist support assembled on the chair back cannot match with the twisting of the body of the user, so that the corresponding twisting action and angle adjustment are generated, the flexibility is poor, and the comfort is poor; so that when the user twists his body left and right, one side of his waist and back will be far away from the backrest and the waist rest, and the user will lose the support of his waist and back, so that the user will feel uncomfortable with soreness of the waist and back when using the existing chairs.

CN201821646077.6 patent of chinese utility model discloses a "self-adaptive support device of chair and chair", the self-adaptive support device includes a chair back and a waist rest, a connecting fastener is provided between the waist rest and the chair back, the connecting fastener includes a male buckle with a ball head and a female buckle with a ball socket, the ball head is inserted into the ball socket to realize rotation in all directions, the male buckle is connected with the waist rest, the female buckle is connected with the chair back; at least one group of elastic components is arranged between the waist rest and the chair back, the front end and the rear end of each elastic component are respectively connected with the waist rest and the chair back, and each group of elastic components comprises at least two springs; in the utility model, the elastic component is arranged between the waist rest and the chair back, and the connecting fastener is also arranged; elastic component plays elastic support and reset action, connects the fastener and makes the waist lean on can be based on back of the chair free rotation and activity, and the bulb rotates in all directions and includes 360 degrees circumference rotations and for a reference surface slope in arbitrary direction to can make the waist lean on more nimble, can laminate human waist curve more. Although the waist rest of the self-adaptive device can flexibly rotate in all directions, the waist rest can be attached to the waist of a human body; but the waist rest and the chair back are provided with the connecting fastener and the elastic component, so that the structure is more complex and the cost is increased; and is aesthetically unpleasing after connection.

Disclosure of Invention

The utility model overcomes the defects in the prior art and provides the waist and back support piece which is ingenious in design and good in support effect; the waist and back supporting piece is in a fishbone structure, is similar to a human spine structure and accords with human engineering; the chair back support can elastically deform in the vertical direction and the left-right direction, so that when a user lies on the chair back assembly, the waist-back support can be adaptive to the dynamic sitting posture of the human body, actively fit the waist and the back of the human body, and is more comfortable to use; a first rotating joint and a second rotating joint are formed on the main supporting plate, and the thickness of the first rotating joint is larger than that of the second rotating joint; the waist and back supporting piece can be naturally bent at the joint of the first rotating joint and the second rotating joint when being elastically bent, so that the deformation of the waist and back supporting piece is more flexible and is not very difficult; the method is suitable for user groups with different weights.

The waist back supporting piece is directly connected to the chair back component; compared with the structure that a universal rotating mechanism or an elastic component is arranged between the waist rest and the chair back in the prior art, the structure is simplified undoubtedly, and the whole body is simple and attractive after connection.

The technical scheme of the utility model is realized as follows:

a waist and back supporting piece is of a long-strip fishbone-shaped structure and comprises a main supporting plate and rib plates, wherein the main supporting plate is longitudinally arranged, and the rib plates are arranged on the main supporting plate at intervals along the length direction of the main supporting plate; the whole waist and back supporting piece has elasticity, the main supporting plate can be elastically bent and deformed in the vertical direction, and the rib plates can be elastically deformed in the left and right directions; a first rotary joint is formed at the part of the main supporting plate connected with the ribbed plate, and a second rotary joint is correspondingly formed at the part of the main supporting plate not connected with the ribbed plate; the first rotating joint and the second rotating joint are distributed at intervals along the length direction of the main supporting plate, and the thickness of the first rotating joint is larger than that of the second rotating joint.

Preferably, the lower part of the waist and back support is in a bending state and protrudes forwards to form a waist supporting part; the waist and back supporting piece can be repeatedly elastically bent and reset, and the waist supporting part is correspondingly ejected or contracted. Forming a top waist portion to match the human "S" shaped spine; the top waist portion is ejected or contracted to fit the user waist at all times.

Preferably, a circle of first reinforcing ribs are arranged at the joints of the main supporting plate and the rib plates so that the main supporting plate of the part forms the first rotating joint. Be equipped with first strengthening rib, improve the intensity of the junction of main tributary fagging and floor simultaneously, improve structural stability.

Preferably, the length of the second rotating joint is between 1/4 and 2/5 of the length of the first rotating joint. The length of the second rotating joint is reasonably configured, and the flexibility of bending the main supporting plate in the vertical direction is guaranteed.

Preferably, the rib plate is an arc plate, the main supporting plate is perpendicular to the rib plate, and the rib plate is positioned on the left side and the right side of the main supporting plate and respectively bent forwards. Can be better attached to the waist and the back of the human body.

Preferably, a circle of second reinforcing ribs is arranged on the rib plate along the peripheral outline of the rib plate. Further improving the strength of the rib plate.

Preferably, the waist and back support is made of elastic plastic materials. The material is light and the cost is reduced.

A seat, characterized by: comprises a chair back component, and the waist and back supporting piece is arranged on the chair back component.

Preferably, the upper end of the lumbar support is rotatably connected to the seat back assembly, and the lower end of the lumbar plate assembly is rotatably connected to the seat back assembly. The upper end and the lower end of the waist and back supporting piece are respectively and rotatably connected to the chair back component; when the waist and back supporting piece is stressed and bent to deform, the waist and back supporting piece can rotate and be adjusted automatically, and the phenomenon that the joint is broken due to the fact that stress is concentrated in one direction is avoided.

Preferably, the lower end of the waist and back support piece can be adjusted to lift relative to the chair back component, the lower end of the waist and back support piece is adjusted to lift relative to the chair back component so that the waist and back support piece is bent and deformed, and the waist and back support piece pushes the chair back component forwards. Meanwhile, the seat has a waist supporting function, and the functionality of the seat is improved.

The design starting point, the idea and the beneficial effects of the utility model adopting the technical scheme are as follows:

firstly, the waist and back supporting piece is in a fishbone structure, is similar to a human spine structure and accords with human engineering; the chair back support can elastically deform in the vertical direction and the left-right direction, so that when a user lies on the chair back assembly, the waist-back support can be adaptive to the dynamic sitting posture of the human body, the waist and the back of the human body can be actively attached through elastic deformation, and the use is more comfortable; a first rotating joint and a second rotating joint are formed on the main supporting plate, and the thickness of the first rotating joint is larger than that of the second rotating joint; the waist and back support piece can be naturally bent at the joint of the first rotating joint and the second rotating joint when being elastically bent, so that the deformation of the waist and back support piece is more flexible, the waist and back support piece is not too hard, and the waist and back support piece is suitable for user groups with different weights; and the elastic deformation effect is better, so that the user obviously feels the dynamic support provided by the waist support piece.

Secondly, the first reinforcing ribs and the second reinforcing ribs have the function of improving the strength and can also enable the bending shapes of the main supporting plate and the ribbed plate to be flexibly changed; the design is ingenious, and the dual-function is achieved.

Moreover, the self-adaptive adjustment can be realized only by the elastic effect of the waist and back supporting piece; the waist support is directly connected to the chair back component; need not to set up elasticity or revolution mechanic in addition, reduce cost for the structure is retrencied more, connects the back whole simple and clear and handsome in appearance.

In addition, the lower end of the waist and back support piece can be lifted and lowered relative to the chair back component, the lower end of the waist and back support piece is adjusted to lift relative to the chair back component so that the waist and back support piece is bent and deformed, and the waist-pushing part of the waist and back support piece pushes the chair back component forwards; so that the seat can also have the function of waist supporting and the function is more abundant.

Drawings

FIG. 1 is a schematic perspective view of the back side of a lumbar support according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a front view of a lumbar support in an embodiment of the present invention;

FIG. 4 is a side view of a lumbar support in an embodiment of the present invention;

FIG. 5 is a rear view of a lumbar support in an embodiment of the present invention;

FIG. 6 is a schematic perspective view of the front side of the lumbar support according to an embodiment of the present invention;

figure 7 is a perspective view of a lumbar support attached to a seatback assembly in accordance with an embodiment of the present invention.

The figures are numbered: a lumbar support 1; a main supporting plate 2; a rib plate 3; a top waist portion 4; a first reinforcing rib 5; a first rotating joint 6; a second rotary joint 7; a second reinforcing rib 8; a seatback assembly 9; the crossbar 10 is adjusted.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more than one unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present embodiment, the terms for each direction, such as front and rear, are described in the use state where the user is actually seated on the seat.

The specific embodiment of the utility model is as follows:

as shown in fig. 1-7, the utility model provides a lumbar support member and a seat, wherein the lumbar support member 1 is a long-strip fishbone structure, and the lumbar support member 1 comprises a main support plate 2 arranged longitudinally and rib plates 3 arranged on the main support plate 2 at intervals along the length direction of the main support plate 2; the whole waist and back support member 1 has elasticity, and when the waist and back support member 1 is stressed, the waist and back support member can be elastically deformed in the vertical direction and the left and right directions; then when this back support piece 1 receives the user application of force, can produce the bending torsion deformation in vertical direction and left and right sides direction in order to laminate user's waist and back all the time, self-adaptation user's developments position of sitting provides good travelling comfort.

As shown in fig. 1-6, the main supporting plate 2 is in an S shape and simulates the spine of a human body; make back support piece 1 similar human backbone shape, when the user lies and leans on back support piece 1, back support piece 1 can just laminate human waist and back, accords with human engineering mechanics. The lower part of the waist and back supporting piece 1 is correspondingly bent forwards and convexly forms a top waist part 4 for supporting the waist of the user, so that the waist of the user can be effectively supported, and the waist pressure of long-time sitting is relieved. The main supporting plate 2 has high elasticity, and can be repeatedly elastically bent and deformed in the vertical direction to reset without breaking; then, when the user leans on the waist and back support 1, the waist and back support 1 will follow the sitting posture change of the user and actively fit the waist of the user. The rib plate 3 is vertical to the main supporting plate 2, the rib plate 3 is arc-shaped, and the rib plate 3 is positioned on the left side and the right side of the main supporting plate 2 and slightly bent forwards respectively, so that the waist and the back of a human body can be met; the rib 3 also has elasticity, and can be elastically deformed in the left-right direction with respect to the main support plate 2. Then under the action of the main supporting plate 2 and the ribbed plates 3, the waist and back supporting piece 1 can generate elastic deformation to a certain degree in the vertical and horizontal directions; so that the lumbar support 1 can follow the dynamic sitting posture self-adaptive elastic adjustment of the user, providing a more comfortable support. In addition, the main supporting plate 2 and the rib plates 3 are both made of elastic plastic materials with high strength, and the materials are light and can reduce the cost.

The key points are as follows: as shown in fig. 1, 2 and 4: be equipped with the first strengthening rib 5 of round in the junction of main tributary fagging 2 and floor 3, this first strengthening rib 5 can improve the intensity of main tributary fagging 2 and floor 3 junction, fracture when avoiding floor 3 relative main tributary fagging 2 elastic bending, improvement back support piece 1's stability. Then, the main support plate 2 of the part forms a first rotating joint 6, and correspondingly, the part of the main support plate 2 which is not connected with the ribbed plate 3 forms a second rotating joint 7; the first rotating joints 6 and the second rotating joints 7 are arranged at intervals along the length direction of the main supporting plate 2, and the thickness of the first rotating joints 6 is thicker than that of the second rotating joints 7 due to the existence of the first reinforcing ribs 5; then the thickness of the main supporting plate 2 is in a form of alternating thick and thin; the significance of the design is as follows: if the thicknesses of the main supporting plates 2 are consistent, the main supporting plates 2 are deformed to a lower degree when being bent in the vertical direction; and a large force is needed to bend the bending plate; when a user with light weight uses the novel multifunctional desk, the feeling is not obvious, and the using effect is insufficient. The main supporting plate 2 is divided into a plurality of sections of second rotating joints 7 and first rotating joints 6 which are thin and thick at intervals, so that when the main supporting plate 2 is stressed to be elastically bent, the main supporting plate can be naturally bent at the joint of the first rotating joints 6 and the second rotating joints 7; the deformation of the steel wire rope in the vertical direction is more flexible and light; the novel weight-losing device is not too hard, is suitable for people with different weights, and is simple and reliable in structure and ingenious in design. And in this embodiment, the length of the second rotating joint 7 is one third of that of the first rotating joint 6, and the length of the second rotating joint is reasonably configured to ensure the flexibility of the main supporting plate in bending in the vertical direction.

In addition, along the edge profile of floor 3, be equipped with round second strengthening rib 8 on floor 3, further improve floor 3's structural strength, can be more stable support user's waist and back.

As shown in fig. 7, the seat comprises a seat back assembly 9, and the lumbar support 1 is arranged on the seat back assembly 9. The upper end of the waist and back support member 1 is rotatably connected to the chair back assembly 9, and the lower end of the waist and back support member 1 is also rotatably connected to the chair back assembly 9; make back support piece 1 in the atress deformation process, back support piece 1 upper and lower both ends can rotate relative the back of the chair subassembly, and the atress concentrates on a direction and leads to the junction to split easily when avoiding deforming, further improves structural strength. Furthermore, an adjusting cross rod 10 capable of being adjusted in a lifting mode relative to the chair back component 9 is arranged at the lower end of the chair back component 9, and the lower end of the waist and back support piece 1 is rotatably connected to the adjusting cross rod 10; then the adjusting cross rod 10 is controlled to move upwards relative to the chair back component 9 so as to drive the lower end of the waist and back support piece 1 to move upwards; the waist and back supporting piece 1 can be elastically bent, so that the waist ejecting part 4 is ejected forwards, the seat also has a waist ejecting function, and the use is more humanized.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.

Claims

1. A lumbar support characterized by: the waist and back supporting piece is of a long-strip fishbone-shaped structure and comprises a main supporting plate which is longitudinally arranged and ribbed plates which are arranged on the main supporting plate at intervals along the length direction of the main supporting plate; the whole waist and back supporting piece has elasticity, the main supporting plate can be elastically bent and deformed in the vertical direction, and the rib plates can be elastically deformed in the left and right directions; a first rotary joint is formed at the part of the main supporting plate connected with the ribbed plate, and a second rotary joint is correspondingly formed at the part of the main supporting plate not connected with the ribbed plate; the first rotating joint and the second rotating joint are distributed at intervals along the length direction of the main supporting plate, and the thickness of the first rotating joint is larger than that of the second rotating joint.

2. The lumbar support as set forth in claim 1, wherein: the lower part of the waist and back support is in a bending state and protrudes forwards to form a waist supporting part; the waist and back supporting piece can be repeatedly elastically bent and reset, and the waist supporting part is correspondingly ejected or contracted.

3. The lumbar support as set forth in claim 1, wherein: the joint of the main supporting plate and the ribbed plate is provided with a circle of first reinforcing ribs so that the main supporting plate of the part forms the first rotating joint.

4. The lumbar support as set forth in claim 1, wherein: the length of the second rotating joint is between 1/4 and 2/5 of the length of the first rotating joint.

5. The lumbar support as set forth in claim 1, wherein: the ribbed plate is an arc-shaped plate, the main support plate is perpendicular to the ribbed plate, and the ribbed plate is positioned on the left side and the right side of the main support plate and respectively bent forwards.

6. The lumbar support of claim 5, wherein: and a circle of second reinforcing ribs are arranged on the rib plate along the edge profile of the rib plate.

7. The lumbar support as set forth in claim 1, wherein: the waist and back support piece is made of elastic plastic materials.

8. A seat, characterized by: comprising a back assembly on which is provided a lumbar support according to any of claims 1-7.

9. The seat according to claim 8, wherein: the upper end of the waist and back support piece is rotatably connected to the chair back component, and the lower end of the waist board component is rotatably connected to the chair back component.

10. The seat according to claim 8, wherein: the lower end of the waist and back support piece can be adjusted to lift relative to the chair back component, the lower end of the waist and back support piece is adjusted to lift relative to the chair back component so that the waist and back support piece is bent and deformed, and the waist and back support piece can push the chair back component forwards relative to the waist and back support piece.