CN219537865U - Lumbar support mechanism and seat - Google Patents

Abstract

The utility model discloses a lumbar support mechanism which is connected to a seat back. The support assembly comprises a mounting support and a support assembly arranged on the mounting support, wherein the rear end of the mounting support is connected with a seat back, the support assembly is arranged at the front end of the mounting support and comprises two first support wings which are arranged in a bilateral symmetry mode and a second support wing which is positioned between the two first support wings and below the two first support wings, the support surfaces of the two first support wings respectively correspond to two sides of a waist, the support surfaces of the second support wings correspond to the vertebrae of the waist, and the first support wings and the second support wings are made of elastic materials. The utility model realizes the key support of the waist and the continuous support of the waist, and achieves the aims of protecting the waist and preventing the user from tiring after sitting for a long time.

Description

Lumbar support mechanism and seat

Technical Field

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

Background

The existing seat is often in a gap with the waist of a user, the waist of the user cannot be supported, the gap is often filled by arranging a waist rest on the backrest, the waist rest is a back rest for the waist, waist discomfort caused by sedentary sitting can be relieved to a certain extent, but the existing waist rest only supports the whole waist of the user. When sitting for a long time, the part that the waist needs to be supported is at both wings and the middle part of waist, and current waist is leaned on and is supported by whole, is on the contrary not enough to the both wings and the middle part of waist to when the user twists the waist on the seat, the waist leans on can't laminate with the waist of user constantly, and in addition, this kind of waist leans on still has the volume too big, occupies the deep and higher drawback of manufacturing cost of seat.

Chinese patent publication No. CN202211482005.3, publication No. 2022-11-24, entitled lumbar support of the utility model, the disclosed lumbar support comprises a card holder, the card holder comprises a card holder body and at least one card holder side connected to the card holder body and located at the side of the card holder body; the leaning part is provided with a framework around, and the framework is provided with a framework bottom and at least one framework side part connected to the framework bottom and positioned at the side of the framework bottom; wherein the bottom of the framework is at least partially embedded in the clamping seat body part, and the side of the framework is at least partially embedded in the corresponding clamping seat side. This application, while achieving lumbar support, does not achieve localized support and follow the user's waist.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a lumbar support mechanism and a seat, which are used for respectively supporting key parts of a waist by arranging a first support wing plate corresponding to two sides of the waist and a second support wing plate corresponding to the vertebra of the waist; the first support wing plate and the second support wing plate are supported by elastic materials, and when a user twists the trunk on the seat, the first support wing plate and the second support wing plate can still be attached to the waist of the user, so that the purpose of supporting the waist at all times is achieved.

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

the utility model provides a lumbar support mechanism for support human waist, includes the installing support, sets up the supporting component on the installing support, the supporting component sets up the front end of installing support, the supporting component includes two first support pterygoid lamina that bilateral symmetry set up, is located the second support pterygoid lamina of below between two first support pterygoid lamina, the holding surface of two first support pterygoid lamina corresponds with waist both sides respectively, the holding surface of second support pterygoid lamina corresponds with the vertebra of waist, first support pterygoid lamina with the second support pterygoid lamina all adopts elastic material to make.

In the scheme, when a user sits on the seat and leans against the backrest of the seat, the supporting surfaces of the two first supporting wing plates respectively lean against the waists of the two sides of the user, and the supporting surfaces of the second supporting wing plates lean against the vertebrae of the waists of the user, so that the independent support of the important positions of the waists is realized; when a user needs to work or twist the trunk in a table, as the first support wing plate and the second support wing plate are elastic, the support surface of the first support wing plate and the support surface of the second support wing plate can support along with the waist of the user, so that the support effect is guaranteed. Specifically, the middle and upper parts of the back of a user are supported by the seat back support and the waist is supported by the waist support mechanism, the middle and upper parts of the back are required to be separated from the seat back frequently according to sitting habits and actual working requirements, and the waist is required to be supported additionally at the moment.

Preferably, the first support wing plate has a width greater than a height, and the second support wing plate has a height greater than the width.

Preferably, the first support wing plate is inclined from outside to inside and from back to front, and the second support wing plate is inclined from bottom to top. The inclination direction of the first support wing plate and the second support wing plate is matched with the waist of a person, so that the person can conveniently attach to the waist.

Preferably, the first support wing plate has a first arc-shaped surface protruding forward, and the second support wing plate has a second arc-shaped surface protruding forward. The radian of first arcwall face and waist both sides is unanimous, and the radian of first arcwall face and the vertebra of waist is unanimous, and during actual support, first support pterygoid lamina and second support pterygoid lamina formation parcel form, further are convenient for laminate with the waist, have promoted the comfort level of support.

Preferably, the mounting bracket comprises a mounting plate and mounting arms which are symmetrically arranged on the mounting plate in a left-right mode, the mounting arms are in one-to-one correspondence with the first support wing plates, the first support wing plates are arranged at the ends, far away from the mounting plate, of the corresponding mounting arms, and the second support wing plates are connected to the lower ends of the mounting plate.

Preferably, the mounting arm is far away from the end of mounting panel is equipped with first mount pad, the lower extreme of mounting panel is equipped with the second mount pad, first support pterygoid lamina rotates along left and right directions through first pivot and sets up on corresponding first mount pad, be equipped with on the first mount pad and be used for keeping first support pterygoid lamina in the first resilience piece of support state, the second support pterygoid lamina rotates along upper and lower direction through the second pivot and sets up on the second mount pad, be equipped with on the second mount pad and be used for keeping the second support pterygoid lamina in the second resilience piece of support state. When the actual work, when the user leans against the seat back completely, the waist oppresses first support pterygoid lamina and second support pterygoid lamina this moment, first support pterygoid lamina and second support pterygoid lamina drive first resilience piece and the compression of second resilience piece respectively, first resilience piece and second resilience piece rebound this moment makes first support pterygoid lamina offset with user's waist both sides, second support pterygoid lamina offset with the vertebra of waist, through setting up first resilience piece and second resilience piece and rotating and set up first support pterygoid lamina and second support pterygoid lamina, the activity space of first support pterygoid lamina and second support pterygoid lamina has been increased, let more lean on the space for the user promptly.

Preferably, the first rebound member comprises a first torsion spring, the first torsion spring is sleeved on the first rotating shaft, two folding legs of the first torsion spring are respectively propped against the first mounting seat and the first supporting wing plate, the second rebound member comprises a second torsion spring, the second torsion spring is sleeved on the second rotating shaft, two folding legs of the second torsion spring are respectively propped against the second mounting seat and the second supporting wing plate, and the torsion spring has the characteristics of saving mounting space, being not exposed after being mounted and being long in service life, and guaranteeing the service lives of the first supporting wing plate and the second supporting wing plate.

Preferably, the outer side of the first support wing plate is hinged to the first mounting seat, the inner side of the first support wing plate extends towards the position close to the right front of the mounting plate along the left-right direction, the lower side of the second support wing plate is hinged to the second mounting seat, and the upper side of the second support wing plate extends towards the position close to the right front of the mounting plate along the up-down direction.

Preferably, the mounting arm is made of elastic material. In actual operation, when a user leans against the backrest of the seat, the mounting arms can also form elastic support for the waist of the user, so that the comfort of the support is further ensured.

The seat comprises the waist support mechanism, the seat comprises a seat back, the seat back comprises a back frame and screen cloth tightly arranged on the back frame, and the support surfaces of the first support wing plate and the second support wing plate are propped against the back surface of the screen cloth.

Preferably, the back frame comprises an upper back supporting area and a lower back supporting area, a supporting rib is transversely arranged between the upper back supporting area and the lower back supporting area, a connecting seat is arranged in the middle of the supporting rib, and the mounting plate is detachably connected to the connecting seat.

Preferably, the back frame in the upper back support area has a first bending radian protruding forward, and the back frame in the lower back support area has a second bending radian protruding forward, and the second bending radian is greater than the first bending radian. Through setting up first crooked radian, be convenient for screen cloth and human back of body laminating, through setting up the crooked radian of second, be convenient for screen cloth and human back of body laminating down, further strengthen the support to the waist.

The principle and beneficial effects of the utility model adopting the technical scheme are as follows:

1. the lumbar support mechanism comprises two first support wing plates and two second support wing plates, so that the key positions of the waist of a user are respectively supported, and the supporting experience of the waist of the user is improved.

2. The first support wing plate and the second support wing plate are supported by elastic materials, so that the first support wing plate and the second support wing plate are attached to the waist of a user, and the purpose of supporting the waist at any time is achieved.

3. Through setting up first resilience piece and second resilience piece and rotating and setting up first support pterygoid lamina and second support pterygoid lamina, increased the activity space of first support pterygoid lamina and second support pterygoid lamina, let more leaning space for the user promptly.

4. The lumbar support mechanism is arranged on the seat back and above the seat surface of the seat, does not occupy the seat depth of the seat, and realizes that a user gives up more riding space.

5. The back frame positioned in the lower back support area is provided with a second bending radian protruding forwards, so that the mesh cloth tightly arranged on the lower back support area is provided with a forward radian, and further support of the waist is realized.

Drawings

FIG. 1 is a schematic view of a lumbar support mechanism;

FIG. 2 is a schematic view of one of the first support wings;

FIG. 3 is a schematic view of another angle of one of the first support wings;

FIG. 4 is a schematic view of a second support flap;

FIG. 5 is a schematic view of another angle of the second support flap;

FIG. 6 is a schematic view of the mounting bracket of example 2;

FIG. 7 is a schematic view of a seat back with a lumbar mounted thereto;

FIG. 8 is a schematic view of a seat back;

fig. 9 is a side view of the seat back.

The reference numerals in the drawings are as follows:

1. a mounting bracket; 2. a first support wing; 3. a second support wing; 4. a first arcuate surface; 5. a second arcuate surface; 6. a mounting plate; 7. a mounting arm; 8. a first mount; 9. a second mounting base; 10. a seat back; 11. a back rest frame; 12. an upper back support region; 13. a lower back support region; 14. a connecting seat; 15. a support rib; a. a first arc of curvature; b. a second curvature.

Description of the embodiments

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

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

The specific embodiments of the present utility model are as follows:

example 1: as shown in fig. 1 to 5 and fig. 7, the present utility model provides a lumbar support mechanism for supporting a lumbar region of a human body, comprising a mounting bracket 1 and a support assembly disposed on the mounting bracket 1, wherein the rear end of the mounting bracket 1 is connected with a seat back 10, the support assembly is disposed at the front end of the mounting bracket 1, the support assembly comprises two first support wing plates 2 symmetrically disposed left and right, and a second support wing plate 3 disposed below the two first support wing plates 2, the support surfaces of the two first support wing plates 2 respectively correspond to two sides of the lumbar region, the support surface of the second support wing plate 3 corresponds to the spine of the lumbar region, and the first support wing plates 2 and the second support wing plates 3 are made of elastic materials.

In the scheme, when a user sits on the seat and leans against the seat back 10, the supporting surfaces of the two first supporting wing plates 2 respectively lean against the waist parts of the two sides of the user, and the supporting surfaces of the second supporting wing plates 3 lean against the vertebrae of the waist part of the user, so that the independent support of the important positions of the waist part is realized; when a user needs to work or twist the trunk, as the first support wing plate 2 and the second support wing plate 3 have elasticity, the support surface of the first support wing plate 2 and the support surface of the second support wing plate 3 can support along with the waist of the user, so that the support effect is guaranteed. Specifically, the middle and upper parts of the back of a user are supported by the backrest support 10 of the seat and the waist is supported by the waist support mechanism, and the middle and upper parts of the back are required to be frequently separated from the backrest 10 of the seat according to sitting habits and the requirement of a sitting posture during actual working, and the waist is required to be supported at the moment. The back posture of a human body when the human body is on the seat is roughly divided into a forward leaning state in which the human body is in a sitting posture, a relatively upright standing state, a leaning state in which the human body is fully reclined, and a twisting state in which the human body is twisted. In the present embodiment, the first support wing plate 2 and the second support wing plate 3 are made of polyoxymethylene or polyoxymethylene and are in the form of a sheet.

As shown in fig. 1 and 7, the width of the first support wing plate 2 is greater than the height, and the second support wing plate 3 is greater than the width and is obliquely arranged from outside to inside to the rear along the seat back 10, and the first support wing plate 2 is provided with a first arc-shaped surface 4 protruding forward along the seat back 10 and is obliquely arranged from bottom to top to front, the second support wing plate 3 is provided with a second arc-shaped surface 5 protruding forward, in this embodiment, the oblique directions of the first support wing plate 2 and the second support wing plate 3 are matched with the waist of a person, so that the first support wing plate 2 and the second support wing plate 3 are convenient to fit with the waist, the radian of the first arc-shaped surface 4 and the radian of two sides of the waist are consistent, the first arc-shaped surface 5 and the radian of the spine of the waist are consistent, and during actual support, the first support wing plate 2 and the second support wing plate 3 form a package shape, so that the fit with the waist is further convenient, and the comfort of support is improved. It will be appreciated that the first arcuate surface 4 and the second arcuate surface 5 are the bearing surfaces of the first support flap 2 and the second support flap 3, respectively.

As shown in fig. 1, the mounting bracket 1 includes a mounting plate 6, mounting arms 7 symmetrically disposed on the mounting plate 6, the mounting arms 7 are in one-to-one correspondence with the first support wing plates 2, the first support wing plates 2 are fixedly connected to the end portions of the corresponding mounting arms 7 far away from the mounting plate 6, the second support wing plates 3 are fixedly connected to the lower ends of the mounting plate 6, and the mounting arms 7 are made of elastic materials. In actual operation, when a user leans against the seat back 10, the mounting arms 7 can also form elastic support for the waist of the user, so that the comfort of the support is further ensured. In the present embodiment, the outer side of the first support wing 2 is hinged to the first mount 8, the inner side of the first support wing 2 extends in the left-right direction toward a position immediately before the mounting plate 6, the lower side of the second support wing 3 is hinged to the second mount 9, and the upper side of the second support wing 2 extends in the up-down direction toward a position immediately before the mounting plate 6. Ensuring that the first support wing 2 and the second support wing 3 have sufficient compression/rebound space. In the present embodiment, the mounting arm 7 is made of polyoxymethylene or polyoxymethylene and has a rod shape.

The seat comprises the waist rest mechanism, as shown in fig. 7-9, the seat comprises a seat back 10, the seat back 10 comprises a back frame 11 and mesh cloth (not shown) tightly arranged on the back frame 11, the supporting surfaces of the first supporting wing plate 2 and the second supporting wing plate 3 are propped against the back surface of the mesh cloth, the back frame 11 comprises an upper back supporting area 12 and a lower back supporting area 13, a supporting rib 15 is transversely arranged between the upper back supporting area 12 and the lower back supporting area 13, a connecting seat 14 is arranged in the middle of the supporting rib, and the mounting plate 6 of the mounting bracket 1 is detachably connected to the connecting seat 14. In the present embodiment, the back frame 11 located in the upper back support region 12 has a first curvature a protruding forward, and the back frame located in the lower back support region 13 has a second curvature b protruding forward, the second curvature b being greater than the first curvature a. Through setting up first crooked radian a, be convenient for screen cloth and human back of body laminating on, through setting up second crooked radian b, be convenient for screen cloth and human back of body laminating down, further strengthen the effect to the lumbar support. It will be appreciated that when the back posture is in the leaning state of the reclining work, the upper back of the person is separated from the upper back support region 12, and the lower back support region 13 needs to have a larger arc to effectively support the lower back, and the back posture is in a relatively upright vertical state and a fully reclined leaning state, in which the lower back support region 13 is first in contact with the lower back portion of the user and fully supports the lower back portion, and then the upper back support region 12 is in contact with and supports the lower back portion. It should be noted that, the lumbar support mechanism can carry out targeted support to the key part of human waist, and the lumbar support mechanism can follow human waist, namely, is attached to the waist to ensure the supporting effect.

Example 2: as shown in fig. 6, this embodiment differs from embodiment 1 in that: the end portion of the mounting arm 7, which is far away from the mounting plate 6, is provided with a first mounting seat 8, the lower end of the mounting plate 6 is provided with a second mounting seat 9, the first support wing plate 2 is arranged on the corresponding first mounting seat 8 in a rotating manner along the left-right direction through a first rotating shaft (not shown), a first rebound member for keeping the first support wing plate 2 in a supporting state is arranged on the first mounting seat 8, the second support wing plate 3 is arranged on the second mounting seat 9 in a rotating manner along the up-down direction through a second rotating shaft (not shown), and a second rebound member for keeping the second support wing plate 3 in a supporting state is arranged on the second mounting seat 9. When the back of a user is in a leaning state of being completely leaned back in actual operation, the waist presses the first support wing plate 2 and the second support wing plate 3, the first support wing plate 2 and the second support wing plate 3 respectively drive the first rebound piece and the second rebound piece to compress, the first rebound piece and the second rebound piece rebound at the moment to enable the first support wing plate 2 to prop against two sides of the waist of the user, the second support wing plate 3 to prop against the spine of the waist, the movable space of the first support wing plate 2 and the movable space of the second support wing plate 3 are increased through the arrangement of the first rebound piece and the second rebound piece and the rotation of the first support wing plate 2 and the second support wing plate 3, and more leaning space is reserved for the user. In this embodiment, the first rebound member includes a first torsion spring (not shown), the first torsion spring is sleeved on the first rotating shaft, two folding legs of the first torsion spring are respectively propped against the first mounting seat 8 and the first supporting wing plate 2, the second rebound member includes a second torsion spring (not shown), the second torsion spring is sleeved on the second rotating shaft, two folding legs of the second torsion spring are respectively propped against the second mounting seat 9 and the second supporting wing plate 3, and the torsion spring has the characteristics of saving mounting space, not exposing after being mounted and long service life, and ensures the service lives of the first supporting wing plate 2 and the second supporting wing plate 3.

The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.

Claims (12)

1. The utility model provides a lumbar support mechanism for support human waist, its characterized in that, including the installing support, set up the supporting component on the installing support, the supporting component sets up the front end of installing support, the supporting component includes two first support pterygoid lamina that bilateral symmetry set up, is located the second support pterygoid lamina of below between two first support pterygoid lamina, the holding surface of two first support pterygoid lamina corresponds with waist both sides respectively, the holding surface of second support pterygoid lamina corresponds with the vertebra of waist, first support pterygoid lamina with the second support pterygoid lamina all adopts elastic material to make.

2. The lumbar support mechanism of claim 1 wherein the first support wing has a width greater than a height and the second support wing has a height greater than the width.

3. The lumbar support mechanism of claim 1 wherein said first support wing is inclined from the outside to the inside and said second support wing is inclined from the bottom to the front.

4. The lumbar support mechanism of claim 1 wherein said first support wing has a first arcuate surface projecting forward and said second support wing has a second arcuate surface projecting forward.

5. The lumbar support mechanism of claim 1, wherein the mounting bracket comprises a mounting plate and mounting arms symmetrically arranged on the mounting plate, the mounting arms are in one-to-one correspondence with the first support wing plates, the first support wing plates are mounted at the ends of the corresponding mounting arms far away from the mounting plate, and the second support wing plates are connected to the lower ends of the mounting plate.

6. The lumbar support mechanism according to claim 5, wherein a first mounting seat is provided at an end portion of the mounting arm away from the mounting plate, a second mounting seat is provided at a lower end of the mounting plate, the first support wing plate is rotatably provided on the corresponding first mounting seat in a left-right direction through the first rotating shaft, a first rebound member for maintaining the first support wing plate in a supported state is provided on the first mounting seat, the second support wing plate is rotatably provided on the second mounting seat in an up-down direction through the second rotating shaft, and a second rebound member for maintaining the second support wing plate in a supported state is provided on the second mounting seat.

7. The lumbar support mechanism of claim 6, wherein the first resilient member includes a first torsion spring, the first torsion spring is sleeved on the first rotating shaft, two folded legs of the first torsion spring respectively support against the first mounting seat and the first supporting wing plate, the second resilient member includes a second torsion spring, the second torsion spring is sleeved on the second rotating shaft, and two folded legs of the second torsion spring respectively support against the second mounting seat and the second supporting wing plate.

8. The lumbar support mechanism of claim 6 wherein the outer side of the first support wing is hinged to the first mounting block, the inner side of the first support wing extends in a side-to-side direction toward a position immediately forward of the mounting block, the lower side of the second support wing is hinged to the second mounting block, and the upper side of the second support wing extends in a side-to-side direction toward a position immediately forward of the mounting block.

9. The lumbar support mechanism of claim 5 wherein said mounting arms are formed of a resilient material.

10. A seat comprising the lumbar support mechanism of any one of claims 1 to 9, the seat comprising a seat back comprising a back frame, a mesh disposed tautly on the back frame, the support surfaces of the first support flap and the second support flap each abutting the back of the mesh.

11. The seat of claim 10, wherein the back frame includes an upper back support region and a lower back support region, a support rib is transversely disposed between the upper back support region and the lower back support region, a connecting seat is disposed in a middle portion of the support rib, and the mounting plate is detachably connected to the connecting seat.

12. The seat of claim 11 wherein the back frame in the upper back support region has a first curvature that is convex forward and the back frame in the lower back support region has a second curvature that is convex forward, the second curvature being greater than the first curvature.