阅读说明：本技术 靠背及座椅 (Backrest and seat ) 是由 何基 金明华 于 2019-02-03 设计创作，主要内容包括：本发明涉及一种靠背及座椅,背部支撑件,用以支撑背部支撑件的支撑架,至少3个弹性件连接于背部支撑件上部和支撑架上部之间,弹性件受到压力时会发生弯曲形变。与现有技术相比,本发明将弹性件设置在靠背上部,可以使背部支撑件左右两侧无阻力,形变自由度高,背部支撑件左右两侧边缘的前后变形幅度更大,更有利于用户在左右方向上的坐姿变换,例如侧身交谈、取物等动作,同时,使靠近用户肩部的背部支撑件部分的支撑性更强,增强了用户脊柱纵向上的稳定性和支撑性,舒适性更佳,安全性更好。(The invention relates to a backrest and a seat, wherein the backrest is a support frame for supporting the backrest, at least 3 elastic members are connected between the upper part of the backrest and the upper part of the support frame, and the elastic members can be bent and deformed when being stressed. Compared with the prior art, the elastic piece is arranged on the upper part of the backrest, so that the left side and the right side of the back support piece have no resistance, the deformation degree of freedom is high, the front and back deformation range of the edges of the left side and the right side of the back support piece is larger, the sitting posture change of a user in the left and right directions is more facilitated, such as the actions of side-to-side talking, fetching and the like, meanwhile, the support performance of the back support piece part close to the shoulder of the user is stronger, the longitudinal stability and the support performance of the spine of the user are enhanced, the comfort is better, and the.)

1. A backrest, characterized by comprising:

a back support (100) having a first back support side (110), a second back support side (120), a back support upper portion (130);

a support frame (200) to support the back support (100) that is substantially rigid and has a first support frame side (210), a second support frame side (220), and a support frame upper portion (230);

at least 3 elastic members (300), the elastic members (300) are transversely arranged in a row and are respectively connected between the upper portion (130) of the back support and the upper portion (230) of the support frame, each elastic member (300) comprises a front connecting portion (310) connected with the upper portion (130) of the back support, a rear connecting portion (320) connected with the upper portion (230) of the support frame, and a bending portion (330) connected between the front connecting portion (310) and the rear connecting portion (320), and the elastic members (300) can be subjected to bending deformation when being subjected to pressure.

2. A backrest according to claim 1, wherein: the number of the elastic members (300) is greater than or equal to 5, and the interval between the back support upper part (130) and the support frame upper part (230) is uniform.

3. A backrest according to claim 1, wherein: the elastic member (300) and the upper portion (130) of the back support are integrally formed or connected in a detachable fixed connection manner.

4. A backrest according to claim 1, wherein: the elastic piece (300) and the upper part (230) of the support frame are fixedly connected in a detachable mode.

5. A backrest according to claim 1, wherein: the elastic pieces (300) are parallel to each other, and the longitudinal section of each elastic piece (300) is in any one or combination of any more of a straight line shape, a Y shape, an L shape, a T shape, a V shape and a Z shape.

6. A backrest according to claim 1, wherein: the elastic piece (300) is a straight elastic wing strip, the width of the elastic wing strip is 0.8cm-2cm, and the length of the elastic wing strip is 2.5cm-5 cm.

7. A backrest according to claim 1, wherein: a reinforced part (340) is arranged at the joint between the front connecting part (310) of the elastic part (300) and the upper part (130) of the back support part, and the reinforced part (340) and the elastic part (300) are integrally formed by adopting toughened flexible materials.

8. A backrest according to claim 1, wherein: the front connecting part (310), the bending part (330) and the rear connecting part (320) of the elastic part (300) are integrally formed by toughened flexible materials.

9. A backrest according to claim 1, wherein: the front connecting part (310) and the bending part (330) of the elastic part (300) and the rear connecting part (320) and the bending part (330) are fixedly connected in a detachable mode.

10. A backrest according to claim 1, wherein: the horizontal position of the front connecting part (310) of the elastic piece (300) is higher than the horizontal position of the rear connecting part (320).

11. A backrest according to claim 1, wherein: when the elastic piece (300) is in a free state, the included angle between the elastic piece (300) and the horizontal plane is 30-80 degrees.

12. A backrest according to claim 1, wherein: the support frame (200) is positioned at the rear side of the back support (100), the support frame (200) comprises a first upright post (240), a second upright post (250) and a support frame top cross bar (260) positioned at the edge of the upper part (230) of the support frame, and the back support (100) comprises a back support top cross bar (150) positioned at the edge of the upper part (130) of the back support; the front connection (310) of the elastic member (300) is connected to the back support top rail (150), and the rear connection (320) of the elastic member (300) is connected to the support frame top rail (260).

13. A backrest according to claim 12, wherein: the first upright post (240), the support frame top cross rod (260) and the second upright post (250) are sequentially connected to form a U-shaped structure.

14. A backrest according to claim 13, wherein: the support frame (200) further comprises a support frame bottom cross rod (270), and a closed support frame is formed by sequentially connecting the first upright post (240), the support frame top cross rod (260), the second upright post (250) and the support frame bottom cross rod (270).

15. A backrest according to claim 1, wherein: a notch (231) is formed in the upper portion (230) of the support frame, and a rear connecting portion (320) of the elastic piece (300) is inserted into the notch (321) to achieve plug connection between the upper portion (230) of the support frame and the elastic piece (300).

16. A backrest according to claim 15, wherein: the rear connecting part (320) of the elastic piece (300) is provided with a fixing protrusion (321), the support frame (200) comprises a support frame main body (280) and a support frame splicing piece (290) spliced on the support frame main body (280), a first groove (281) and a second groove (291) used for accommodating the fixing protrusion (321) are formed in the support frame main body (280) and the support frame splicing piece (290), the fixing protrusion (321) is accommodated into the first groove (291) and the second groove (291), and after the support frame main body (280) and the support frame splicing piece (290) are spliced, the elastic piece (300) is fixedly connected to the upper portion (230) of the support frame.

17. A backrest according to claim 16, wherein: a plurality of insertion grooves (282) are formed in the support frame main body (280), and a plurality of insertion tongues (292) are formed in the support frame splicing piece (290); the splicing tongue (292) is inserted into the splicing groove (282) to realize splicing connection between the support frame main body (280) and the support frame splicing piece (290), and then the screw is locked, and a decorative piece (283) used for covering the screw is connected to the outer part of the screw.

18. A backrest according to claim 16, wherein: the fixing protrusion (321) is provided at both side surfaces at one end of the elastic member (300).

19. A backrest according to claim 1, wherein: said back support (100) further comprising a back support lower portion (160); the first (110), upper (130), second (120) and lower (160) edges of the back support are connected in series to form a back support frame, which is substantially rigid and in which a flexible mesh structure (600) is provided.

20. A backrest according to claim 1, wherein: said back support (100) further comprising a back support lower portion (160); the first back support side (110), the upper back support (130), the second back support side (120) and the lower back support (160) are connected in series to form a back support frame, the back support frame is substantially flexible, and a flexible mesh structure (600) is arranged in the back support frame.

21. A backrest according to claim 20, wherein: the back support frame is less flexible than the mesh structure (600).

22. A backrest according to claim 1, wherein: and a gap of 2cm-6cm is reserved between the side part of the first back support and the side part of the first support.

23. A seat, characterized by: comprising a seat (700) and a backrest according to any of claims 1-21, the lower portion of the first support frame side (110) and the lower portion of the second support frame side (120) each being fixedly connected to the seat (700).

Technical Field

The invention belongs to the technical field of furniture equipment, and particularly relates to a backrest and a seat.

Background

The flexibility of seat back on the existing market, the travelling comfort is relatively poor, can not take place corresponding change according to user's position of sitting, the user of being not convenient for side talk, get action such as thing, also can arouse back fatigue often after the user sits for a long time, the seat is as the conventional article, especially office chair that office workers commonly used, how effectively alleviate back fatigue and pressure after the user sits for a long time, improve the travelling comfort of seat back, be one of the strong demands of existing market to seat product optimization, above-mentioned technical problem is waited for and is solved urgently.

In order to overcome the defects in the prior art, the invention provides the backrest and the seat which can be changed according to the change of the body sitting posture of a user, have high degree of freedom of deformation and strong support property and have the advantages of flexibility, comfort and the like.

Disclosure of Invention

In order to solve the above-mentioned problems, an object of the present invention is to provide a backrest and a seat that can be changed according to the change of the user's body posture, have high degree of freedom of deformation and strong support, and have the advantages of flexibility, comfort, etc.

In order to achieve the purpose, the invention adopts the following technical scheme:

a backrest, comprising:

a back support having a first back support side, a second back support side, a back support upper;

a support frame to support the back support, the support frame being substantially rigid and having a first support frame side, a second support frame side, and a support frame upper;

at least 3 elastic components, the elastic component transversely arranges into one row and connects respectively between back support piece upper portion and support frame upper portion, the elastic component includes the preceding connecting portion of being connected with back support piece upper portion, the back connecting portion of being connected with support frame upper portion and connects the flexion between preceding connecting portion and back connecting portion, and the elastic component can take place bending deformation when receiving pressure.

The invention comprises a back support part, a support frame for supporting the back support part and a row of elastic parts connected between the upper part of the back support part and the upper part of the support frame, wherein the shape of the bending part of the elastic parts can be a bending shape or a straight plate shape or both the bending shape and the straight plate shape; when a user sits on the seat in different sitting postures, different pressures can be brought to the back supporting piece, the back supporting piece is correspondingly deformed and changes in angle inclination due to the bending deformation of the elastic pieces, the wrapping feeling is strong, the comfort is better, the fatigue is effectively relieved, the elastic pieces are transversely arranged in a row, the stability of the left side and the right side of the back supporting piece during deformation is ensured, the firmness degree of the elastic pieces is also ensured, the risk of backward inclination can be avoided, and the supporting force of backward inclination is increased; furthermore, the elastic piece is arranged at the upper part of the backrest, but not arranged at the left side and the right side of the back support piece, so that the left side and the right side of the back support piece have no resistance, the deformation degree of freedom of the back support piece is high, the front-back deformation amplitude of the edges of the left side and the right side of the back support piece is larger, the sitting posture change of a user in the left-right direction is facilitated, such as the actions of side body conversation, fetching and the like, meanwhile, the support performance of the back support piece part close to the shoulder of the user is stronger, the excessive backward tilting of the part above the waist of the user is avoided, the backward tilting danger is not easy to occur, the stability and the support performance of; the support frame is substantially rigid, which means that the support frame has a high degree of rigidity to play a supporting role or is directly rigid, and when a human body leans against the backrest and conducts pressure to the support frame to generate pressure, the deformation of the support frame is small or does not deform.

Preferably, the number of the elastic members is greater than or equal to 5, and the interval between the elastic members is uniformly arranged between the upper portion of the back support and the upper portion of the support frame.

The setting is greater than 5 even elastic component in interval, can further avoid bringing the danger of heeling, increases the holding power when leaning on the user.

Preferably, the elastic member is integrally formed with the upper portion of the back support member or is detachably and fixedly connected thereto.

Preferably, the elastic piece and the upper part of the support frame are fixedly connected in a detachable mode.

The elastic part and the support frame are made of different materials, the elastic part is made of flexible materials, the support frame is made of rigid materials, the detachable fixed connection mode is more convenient, and meanwhile, the die sinking cost is reduced, and the die sinking device is convenient to disassemble, assemble, maintain, transport and store.

Preferably, the elastic parts are parallel to each other, and the longitudinal section of each elastic part is in any one or combination of any more of a straight shape, a Y shape, an L shape, a T shape, a V shape and a Z shape.

The elastic piece is flat as a whole, so that the bending deformation of the elastic piece is facilitated, the deformation amount is large, and the deformation effect of the back support piece is better; particularly, the L-shaped, T-shaped, V-shaped, Y-shaped and Z-shaped shapes are adopted, and the reinforcing parts at the connecting positions among the elastic piece, the back supporting piece and the supporting frame are embodied.

Preferably, the elastic part is a straight elastic wing strip, the width of the elastic wing strip is 0.8cm-2cm, and the length of the elastic wing strip is 2.5cm-5 cm.

The width setting is favorable for simultaneously ensuring the strength and deformation of the elastic piece.

Preferably, a reinforced part is arranged at the joint between the front connecting part of the elastic part and the upper part of the back support part, and the reinforced part and the elastic part are integrally formed by adopting a toughened flexible material.

Due to the high frequency of the bending change of the elastic piece, the single thin elastic piece is easy to break, the service life is short, the design of the reinforcing part can effectively enhance the connection strength between the elastic piece and the upper part of the back supporting piece, the integral firmness of the back supporting piece is further improved, and the service life is prolonged.

Preferably, the front connecting part, the bending part and the rear connecting part of the elastic piece are integrally molded by adopting toughened flexible materials.

The integral forming ensures the integral firmness degree and the service life of the elastic piece.

Preferably, the front connecting part and the bending part of the elastic part and the rear connecting part and the bending part of the elastic part are fixedly connected in a detachable mode.

The detachable fixed connection mode is convenient for the maintenance and the replacement of parts.

Preferably, the front connecting part of the elastic member is located at a higher level than the rear connecting part.

The elastic piece is beneficial to bending deformation and resetting.

Preferably, the angle between the elastic member and the horizontal plane is 30-80 ° in the free state of the elastic member.

The elastic piece is beneficial to bending deformation, the deformation amplitude is large, and the comfort is better.

Preferably, the support frame is positioned at the rear side of the back support, the support frame comprises a first upright post, a second upright post and a support frame top cross bar positioned at the upper edge of the support frame, and the back support comprises a back support top cross bar positioned at the upper edge of the back support; the front connecting part of the elastic part is connected to the top cross rod of the back support part, and the rear connecting part of the elastic part is connected to the top cross rod of the support frame.

The elastic part is connected between the cross bar at the top of the back support part at the upper edge of the back support part and the cross bar at the top of the support frame at the upper edge of the support frame, so that the deformation freedom of the left side and the right side of the back support part is higher, and meanwhile, the back support part close to the shoulders of a user has stronger support performance and is not easy to have the risk of backward tilting; wherein the first upright post is a side part of the first support frame, and the second upright post is a side part of the second support frame.

Preferably, the first upright column, the cross bar at the top of the support frame and the second upright column are sequentially connected to form a U-shaped structure.

The supporting frame structure of U type form can support back support piece's coverage is wider, and the support effect is better, and the security is higher.

Preferably, the support frame further comprises a support frame bottom cross rod, and the first stand column, the support frame top cross rod, the second stand column and the support frame bottom cross rod are sequentially connected to form a closed support frame.

Not only can make the coverage of supporting back support piece wider, can strengthen the firm degree of support frame body simultaneously.

Preferably, the upper part of the support frame is provided with a notch, and the rear connecting part of the elastic element is inserted into the notch to realize the plug-in connection between the upper part of the support frame and the elastic element.

The plug-in connection mode is adopted, the structure is simple, the number of parts is small, assembly is facilitated, and installation cost is reduced.

Preferably, the rear connecting part of the elastic part is provided with a fixing protrusion, the support frame comprises a support frame main body and a support frame splicing part spliced on the support frame main body, a first groove and a second groove used for containing the fixing protrusion are formed in the support frame main body and the support frame splicing part respectively, the fixing protrusion is contained in the first groove and the second groove, and the elastic part is fixedly connected to the upper part of the support frame after the support frame main body and the support frame splicing part are spliced.

The elastic piece and the support frame are fixedly connected in an inserting mode of the fixing protrusion, the first groove and the second groove, the structure is simple, parts are few, assembly is facilitated, and installation cost is reduced; wherein the splicing of the support frame main body and the support frame splicing piece realizes the splicing of the first groove and the second groove.

Preferably, the support frame main body is provided with a plurality of insertion grooves, and the support frame splicing pieces are provided with a plurality of insertion tongues; the splicing tongue is inserted into the splicing groove to realize splicing connection between the support frame main body and the support frame splicing piece, and then the screw is locked, and the screw is externally connected with a decorating piece for covering the screw.

Similarly, splicing is realized by adopting a splicing connection mode, the structure is simple, parts are few, assembly is facilitated, and the installation cost is reduced; the firmness of connection between the support frame main body and the support frame splicing piece is further guaranteed through the screw parts, and the appearance of the support frame is attractive and concise due to the decorating part.

Preferably, the fixing protrusion is provided at both side surfaces at one end of the elastic member.

The firmness and the stability of the connection of the two are ensured.

Preferably, the back support further comprises a back support lower portion; the first back support side edge, the back support upper edge, the second back support side edge and the back support lower edge are sequentially connected and closed to form a back support frame, the back support frame is approximately rigid, and a flexible net structure is arranged in the back support frame.

The back support piece frame is approximately rigid, namely the back support piece frame is small in deformation or basically does not deform, and the net-shaped structure comprises net cloth or an elastic hollow structure, so that the back support piece is larger in deformation, large in elasticity, stronger in wrapping feeling and more comfortable; particularly, the mesh-shaped area can be arranged in a plurality of rhombic hollow structures, particularly the height of the rhombuses is larger than the width of the rhombuses, so that the deformation amount of the back support piece in the left and right directions and the overall wrapping feeling of the back support piece are further improved, and meanwhile, the rhombuses on the upper part of the mesh-shaped area are larger than the rhombuses on the lower part of the mesh-shaped area, so that the support for the waist is facilitated.

Preferably, the back support further comprises a back support lower portion; the first back support side edge, the back support upper edge, the second back support side edge and the back support lower edge are sequentially connected and closed to form a back support frame, the back support frame is approximately flexible, and a flexible net structure is arranged in the back support frame.

The back support frame is approximately flexible, namely the back support frame has a certain deformation, so that the wrapping feeling is stronger, and the comfort is better; meanwhile, the net-shaped structure comprises mesh cloth or an elastic hollow structure, so that the back support piece has larger deformation, large elasticity, stronger wrapping feeling and higher comfort; particularly, the mesh-shaped area can be arranged in a plurality of rhombic hollow structures, particularly the height of the rhombuses is larger than the width of the rhombuses, so that the deformation amount of the back support piece in the left and right directions and the overall wrapping feeling of the back support piece are further improved, and meanwhile, the rhombuses on the upper part of the mesh-shaped area are larger than the rhombuses on the lower part of the mesh-shaped area, so that the support for the waist is facilitated.

Preferably, the back support frame is less flexible than the mesh structure.

Both guaranteed the support function of back support piece frame, can produce its self certain deformation again simultaneously, the parcel feels better.

Preferably, a gap of 2cm to 6cm is left between the first back support side and the first support frame side.

Correspondingly, a gap of 2-6 cm is also left between the side part of the second back support and the side part of the second support frame; this provides space for the deformation of the back support, the first back support side, the second back support side.

A seat comprises a seat part and the backrest, wherein the lower parts of the side parts of the first support frame and the second support frame are fixedly connected with the seat part.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a backrest and a seat which can be changed according to the change of the sitting posture of a user, have high deformation freedom degree and strong support property and have the advantages of flexibility, comfort and the like. The invention comprises a back support part, a support frame for supporting the back support part and a row of elastic parts connected between the upper part of the back support part and the upper part of the support frame, wherein the shape of the bending part of the elastic parts can be a bending shape or a straight plate shape or both the bending shape and the straight plate shape; when a user sits on the seat in different sitting postures, different pressures can be brought to the back supporting piece, the back supporting piece is correspondingly deformed and changed in angle inclination due to the bending deformation of the elastic piece, the wrapping feeling is strong, the comfort is better, and the fatigue is effectively relieved; furthermore, the elastic piece is arranged on the upper part of the backrest, but not arranged on the left side and the right side of the back support piece, so that the left side and the right side of the back support piece have no resistance, the deformation degree of freedom of the back support piece is high, the front-back deformation range of the edges of the left side and the right side of the back support piece is larger, the sitting posture change of a user in the left-right direction is facilitated, such as the actions of turning around, fetching and the like, meanwhile, the support performance of the back support piece part close to the shoulder of the user is stronger, the excessive backward tilting of the part above the waist of the user is avoided, the backward tilting danger is not easy to occur, the stability and the support performance of the.

Drawings

Fig. 1 is a schematic structural view of a backrest and a seat according to embodiments 1 and 2;

FIG. 2 is another schematic structural view of the backrest and the seat according to embodiments 1 and 2;

FIG. 3 is a rear view schematic diagram of the backrest and the seat according to embodiments 1 and 2;

FIG. 4 is a schematic structural view of the back support, the elastic member, the first support and the second support integrally formed in accordance with the embodiment 1;

FIG. 5 is an enlarged view of the portion B in FIG. 4;

FIG. 6 is a schematic structural view of a main body of the stand according to embodiment 1;

FIG. 7 is an enlarged view of the portion C of FIG. 6;

FIG. 8 is a schematic structural view of a splicing member of the support frame of example 1;

FIG. 9 is an enlarged view of the portion D of FIG. 8;

FIG. 10 is a schematic structural diagram of the split joint of the support frame body and the support frame splicing piece of the support frame in the embodiment 1;

fig. 11 is an enlarged schematic view of a portion E in fig. 10.

Detailed Description

The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.

The present embodiment relates to reference orientations of components such as a rear side, an upper portion, a lower portion, and the like, which are described in a normal use state in which a user is seated on a seat.