CN217547600U - Seat and back of chair thereof - Google Patents

Abstract

The utility model relates to a seat field especially relates to a seat and back of chair thereof. A chair back comprises a support upright post at the center and a plurality of elastic support units which are connected to the support upright post and are arranged side by side up and down; the elastic supporting unit comprises a supporting main body made of elastic materials, the supporting main body is an arc-shaped body which protrudes backwards and is provided with a forward opening, and a connecting portion used for being connected to the supporting stand column is arranged at the center of the rear end of the supporting main body. The deformation space of the elastic supporting unit in the chair back is larger, and the elastic supporting unit can flexibly and adaptively fit on the basis of the twisting condition of the waist and back of a rider on the basis of clinging to the curve of the waist and back of the human body, so that the chair back is more comfortable; based on the above characteristics, the seat back has a reduced seating restriction on the occupant and an improved use experience.

Description

Seat and back of chair thereof

Technical Field

The utility model relates to a seat field especially relates to a seat and back of chair thereof.

Background

In recent years, with the development of social economy, the pace of life of people is accelerated, more and more people are rushed to work and study, and more people become a family of sedentariness. Therefore, whether the chair is safe and comfortable becomes the first requirement for people to select the chair. Although the existing chair has a chair back, the lines of the chair back are stiff and do not meet the requirement of body curves, independent support can not be provided for all parts of the body, the support force can not be adjusted, the sitting time is long, the body is easy to fatigue, and because the support force can not be adjusted, the support force applied to all parts of the body is different, certain parts of the body can be uncomfortable after a long time, the people feel uncomfortable, and the people can feel weak, are sore and ache all over the body and have chronic back problems due to the long-time sitting.

Based on the weak point of above-mentioned prior art, prior art is as chinese utility model patent text record of "CN202445565U" back of the chair structure of fishbone bow type, and it includes leaning on portion and support, leaning on portion includes a bow type skeleton and several backing plate, bow type skeleton includes bow type supporting part and integrated into one piece's several backup plate, the backup plate transversely sets up side by side on bow type supporting part in order to form fishbone column structure, the both ends of bow type skeleton connect respectively in the upper end and the lower extreme of support, every backing plate include a fixed plate and set up the bubble cotton on the fixed plate, every fixed plate and the backup plate fixed connection who corresponds the position. The beneficial effects are that: the fishbone-arch chair back structure conforms to the curve change of a human body and can independently support all parts of the body, the supporting force gives corresponding supporting force according to the weight of all parts of the body, so that the load on the back of the body is evenly distributed, the problems of discomfort and chronic back of some parts of the body due to sedentary sitting are avoided, and the supporting requirement of a seated person is met.

Above-mentioned scheme all constructs the back of the chair of fishbone shape through integrative backing plate, and the back of the chair back of this shape can the cladding and laminate the person's of taking for the load of health back presents evenly distributed, and it is more comfortable to take the sense. However, the backing plates in the above solutions are all hard support plates, and flexible contact is provided by a core layer (i.e. referred to as sponge) covered on the backing plate. However, twisting of the waist and back is often required when riding, especially in an office communication environment; however, the hard fishbone chair back can restrict the movement, and although the core layer on the surface provides a certain twisting space, the restriction still exists, which affects the use experience.

Disclosure of Invention

In order to solve the above problems, a first object of the present invention is to provide a chair back, wherein the elastic support unit in the chair back has a large deformation space, and can flexibly and adaptively fit based on the twisting condition of the back of a rider on the basis of clinging to the curve of the back of the human body, so that the chair back has better comfort; based on the above characteristics, the seat back has a reduced seating restriction on the occupant and an improved use experience.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a chair back, characterized in that: the support device comprises a support upright post positioned at the center and a plurality of elastic support units which are connected to the support upright post and are arranged side by side up and down; the elastic support unit comprises a support main body made of elastic materials, the support main body is an arc-shaped body protruding backwards and provided with a forward opening, and a connecting portion used for being connected to the support stand column is arranged at the center of the rear end of the support main body.

The above technical scheme is adopted in the utility model, this technical scheme relates to a back of the chair, and this back of the chair is in the support post of center department to and connect on the support post and the polylith elastic support unit of arranging side by side from top to bottom, every elastic support unit is all including supporting the main part, supports the main part and is backward protrusion and opening arc forward. The whole chair back is constructed into the fishbone shape recorded in the background technology, adapts to the curve change of a human body, and can independently support each part of the body, and the supporting force gives corresponding supporting force according to the weight of each part of the body, so that the load pressure of the back of the body is evenly distributed. On the basis, each elastic supporting unit in the scheme is arranged independently, and the supporting body in each elastic supporting unit is made of an elastic material; therefore, the deformation space of each elastic supporting unit is large, and the elastic supporting units can flexibly and adaptively fit on the basis of the twisting condition of the waist and back of a rider on the basis of clinging to the curve of the waist and back of the human body, so that the comfortable feeling is better; based on the above characteristics, the seat back has a reduced seating restriction on the occupant and an improved use experience.

Preferably, the elastic supporting unit further comprises a flexible core layer laid on the front end face of the supporting main body, and a surface layer coated on the outer side of the flexible core layer; the edges of the facing are fixed to the support body. In the technical scheme, the flexible core layer is laid on the front end face of the elastic support main body, so that the comfort of the chair back is further improved.

In a further scheme, the support main body comprises a base plate and an inner lining plate which are respectively made of elastic materials, and the inner lining plate covers the front end face of the base plate and is fixedly connected with the base plate; the connecting part is connected with the base plate; the flexible core layer is laid on the front end face of the inner lining plate, and the edge of the surface layer is clamped between the base plate and the inner lining plate. In this scheme, divide into base plate and interior welt by elastic material respectively with the support subject, on the basis of fixing interior welt connection at the base plate, press from both sides the edge of surface course and establish between base plate and interior welt to play the effect of cliping fixed surface course, the surface course can be with flexible core layer cladding on interior welt preceding terminal surface simultaneously. Compared with the traditional scheme that the edges of the surface layer are fixed in a gun nail mode, the scheme considers that the support main body is made of flexible materials and the gun nail is difficult to fix on one hand; another aspect is that the solution enables easy disassembly of the facing and flexible core layers.

Preferably, the connecting portion is an elastic connecting portion integrally constructed with the base plate. In the technical scheme, the connecting part and the base plate are integrally formed to form an elastic connecting part; on one hand, the forming is more convenient, on the other hand, the elastic connecting part can generate a certain deformation amount relative to the supporting upright column, and the elastic connecting part is close to the shaft point of the whole elastic supporting unit, so that the partial deformation amount can improve the twisting range of the whole elastic supporting unit, and the adjusting space of the elastic supporting unit is larger.

In specific embodiment, connecting portion are the lantern ring, and the lantern ring is inside to be equipped with the shaft hole of wearing to establish the support shaft pole, and the front end center department of base plate is equipped with the inside communicating connecting hole in shaft hole with the lantern ring. When the device is installed, the connecting part of the elastic supporting unit is sleeved from the upper end of the supporting upright post, and the connecting part is moved to a proper position and then fixed through the connecting hole through a bolt so as to axially position the height; in this scheme, adopt the mode of cup jointing installation elastic support unit, the installation is convenient, and installation back stable in structure. Further, the connecting hole is formed in the front end of the base plate, and the connecting hole can be hidden after the installation is completed.

In a further scheme, a headrest is further arranged above the support upright, and the headrest is constructed by the single elastic support unit. In this solution, a headrest is also formed above the seat back, and the headrest is also constructed by the above-described single elastic support unit. The flexible support effect is achieved.

Specifically, a headrest mounting seat is longitudinally slidably sleeved at the top of the support upright, and a hinge groove is formed in the headrest mounting seat; the connecting part of the headrest is a rotating shaft, and a shaft hole is formed in the center of the rotating shaft; the screwing component penetrates through the shaft hole and is connected to the hinge groove; positioning teeth which are matched in the circumferential direction are arranged on at least one side wall of the hinge groove and the two axial side walls of the rotating shaft; the headrest can rotate up and down relative to the headrest mounting seat along the hinged end of the headrest, and the headrest is positioned based on the positioning teeth. In this scheme, the headrest rotates and sets up on the headrest mount pad, can adjust the height of headrest based on the longitudinal sliding of headrest mount pad, and its angle can be adjusted in the relative headrest mount pad rotation of headrest to realize angle location through the location tooth.

A second object of the present invention is to provide a seat, wherein: including a chair back as described above.

Drawings

Fig. 1 is a front perspective view of a seat according to the present invention.

Fig. 2 is a perspective view of the back of the seat according to the present invention.

Fig. 3 is a side view of a seat according to the present invention.

Fig. 4 is a schematic view showing the elastic support unit separated from the seat.

Fig. 5 is a structural view of the elastic support unit.

Fig. 6 is a schematic view of the mounting structure of the headrest.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 6, the present embodiment relates to a chair with a good fit of the lumbar and back portions, which includes a seat 1, a backrest 2 mounted above the seat 1, and a lumbar support body 3 located between the backrest 2 and the rear end portion of the seat 1. The chair is characterized in that innovations are made in a waist rest structure, a chair back 2 structure and a mounting structure for adapting to the waist rest and the chair back 2, and the detailed contents are as follows:

as shown in fig. 2-4, a chair back support frame 5 is connected to the chair seat 1 or the tray 4, and the lower end of the chair back 2 is connected and fixed to the chair back support frame 5; the chair back support frame 5 is annular, the lumbar support body 3 is positioned in the frame of the chair back 2 support frame, and the upper end part of the lumbar support body 3 is hinged on the chair back support frame 5. A chair back supporting frame 5 is connected to the chair seat 1 or the tray 4 in the scheme, and the chair back supporting frame 5 is annular. The lower end of the chair back 2 is fixedly connected with the chair back support frame 5, the lumbar support body 3 is positioned in the frame of the chair back support frame 5, and the upper end part of the lumbar support body 3 is hinged on the chair back support frame 5. Thus, the backrest support frame 5 in this solution is a connecting support bracket for the backrest 2 and the lumbar support body 3, and a space provided for the movable arrangement of the lumbar support body 3 by the annular structure thereof.

As shown in fig. 1 to 4, the seat back 2 includes a support post 6 at the center, and a plurality of elastic support units 7 connected to the support post 6 and arranged side by side up and down. The elastic supporting unit 7 comprises a supporting main body made of elastic material, the supporting main body is an arc-shaped body which protrudes backwards and has a forward opening, and a connecting portion 73 for connecting to the supporting upright 6 is arranged at the center of the rear end of the supporting main body. The chair back 2 is integrally constructed into a fishbone shape recorded in the background technology, adapts to the curve change of a human body, can independently support each part of the body, and provides corresponding supporting force according to the weight of each part of the body, so that the load of the back of the body is evenly distributed. On this basis, each elastic support unit 7 in the present embodiment is provided independently of the other, and the support body in each elastic support unit 7 is made of an elastic material. So, every elastic support unit 7's deformation space is great, hugs closely human back curved basis on, can be based on the wiggling condition agilely self-adaptation laminating of person's back, and the travelling comfort is more. Based on the above characteristics, the seat back 2 has a reduced seating restriction on the occupant and an improved use experience.

In a further scheme, the elastic supporting unit 7 further comprises a flexible core layer (omitted in the figure) laid on the front end face of the supporting main body, and a surface layer (omitted in the figure) coated on the outer side of the flexible core layer. The edges of the facing are fixed to the support body. In the technical scheme, the flexible core layer is laid on the front end face of the elastic support main body, so that the comfort of the chair back 2 is further improved. The support body includes a base plate 71 and an inner liner plate 72 respectively made of an elastic material, and the inner liner plate 72 is covered on a front end face of the base plate 71 and is fixedly connected with the base plate 71. The connecting portion 73 is connected to the base plate 71. The flexible core layer is laid on the front end face of the lining plate 72, and the edge of the surface layer is clamped between the base plate 71 and the lining plate 72. In this embodiment, the support body is divided into a base plate 71 and a lining plate 72, which are made of elastic material, respectively, and the lining plate 72 is connected and fixed to the base plate 71, and the edge of the facing layer is sandwiched between the base plate 71 and the lining plate 72, thereby serving to sandwich and fix the facing layer, and the facing layer can coat the flexible core layer on the front end surface of the lining plate 72. Compare in traditional scheme with the surface course edge fixed through the mode of rifle nail, this scheme considers on the one hand that the support subject is flexible material, is difficult to the fixed rifle nail. Another aspect is that the solution enables easy disassembly of the facing and flexible core layers.

Preferably, the connecting portion 73 is an elastic connecting portion integrally constructed with the base plate 71. Here, the coupling portion 73 is integrally formed with the base plate 71 to constitute an elastic coupling portion. On one hand, the forming is more convenient, on the other hand, the elastic connecting part 73 can generate a certain deformation amount relative to the supporting upright 6, and the elastic connecting part 73 is close to the axial point of the whole elastic supporting unit 7, so that the deformation amount can improve the twisting range of the whole elastic supporting unit 7, and the adjusting space of the elastic supporting unit is larger. In a specific embodiment, the connecting portion 73 is a collar, a shaft hole is formed in the collar, and a connecting hole communicated with the inside of the shaft hole of the collar is formed in the center of the front end of the base plate 71. The lantern ring of elastic support unit 7 wears to establish on support post 6, is equipped with the screw hole on the support post 6, and the solid part of spiral shell passes the connecting hole and connects on the screw hole, can connect elastic support unit 7 and fix on support post 6. During installation, the connecting part 73 of the elastic supporting unit 7 is sleeved from the upper end of the supporting upright post 6, and after moving to a proper position, the connecting part is connected in a threaded hole of the supporting upright post 6 through a connecting hole through a bolt to be fixed, so that the height is axially positioned. In this scheme, adopt the mode of cup jointing installation elastic support unit 7, the installation is convenient, and installation back stable in structure. Further, by providing the connection hole at the front end of the base plate 71, the connection hole can be hidden after the mounting is completed.

In addition, as shown in fig. 4 and 6, the top of the support upright 6 is provided with a headrest mounting seat 8 in a longitudinally sliding manner, a headrest 81 is hinged on the headrest mounting seat 8, and the headrest 81 can rotate up and down relative to the headrest mounting seat 8 along the hinged end thereof. Headrest 81 includes elastic support unit 7, and elastic support unit 7 includes the support subject that elastic material made, and support subject is backward protrusion and the forward arc of opening, and support subject's rear end center department is provided with connecting portion 73 that is used for connecting at headrest mount pad 8. In a further scheme, the headrest mounting base 8 is provided with a hinge groove 82, the connecting portion 73 of the headrest 81 is a rotating shaft, and a shaft hole is formed in the center of the rotating shaft. The screw fixing part passes through the shaft hole and is connected to the hinge groove 82. At least one of the side walls of the hinge groove 82 and the two axial side walls of the rotating shaft is provided with positioning teeth which are matched in the circumferential direction. In the above-described aspect, a headrest 81 is also formed above the seatback 2, and the headrest 81 is also constructed by the above-described single elastic support unit 7. The effect of the flexible support is achieved. Further, the headrest 81 is rotatably provided on the headrest mounting seat 8, the height of the headrest 81 can be adjusted based on the longitudinal sliding of the headrest mounting seat 8, the angle of the headrest 81 can be adjusted by rotating relative to the headrest mounting seat 8, and the angular positioning is realized by the positioning teeth.

As shown in fig. 2 and 3, the back end of the lumbar support body 3 is connected to the seat 1 or the tray 4 through a linkage rod 9, the upper end of the linkage rod 9 is hinged to the lumbar support body 3, and the lower end of the linkage rod 9 is hinged to the seat 1 or the tray 4. The articulated shafts at the upper end and the lower end of the linkage rod 9 are respectively provided with a torsional spring, and the linkage rod 9 provides forward elastic supporting force for the waist rest body 3. The top of the waist support body 3 in the scheme is rotatably connected below the chair back 2, the lower end part is elastically supported, and the waist support can be automatically adjusted along the hinged end according to the sitting posture of a user during use, so that the self-adaptive fitting human waist curve is realized. On this basis, the back end of the waist rest body 3 in the scheme is connected with the seat 1 or the tray 4 through the linkage rod 9, the upper end and the lower end of the linkage rod 9 are hinged, and the hinged end is provided with a torsion spring for providing elastic supporting force. Based on the structure, the waist rest body 3 adopts linkage type support, the movable range of the waist rest body 3 is larger, and the waist rest is suitable for fitting the waist of a human body under the condition of more sitting postures, such as adjusting the inclination angle of the chair back 2. And the linkage type support can disperse the stress. In the adjusting process, the supporting force applied to the waist is evenly distributed, so that the comfort can be felt by the body. No obvious oppressive feeling exists.

In a further scheme, an arc-shaped supporting surface which protrudes forwards and has a backward opening is constructed at the front end of the lumbar support body 3. Among this technical scheme, arc elastic support face can be based on the curved self-adaptation laminating of waist that relies on the one hand, and on the other hand combines above-mentioned coordinated type bearing structure, and human waist can provide a slant decurrent power to arc elastic support face when taking, and this effort direction is syntropy with the rotation direction of lumbar support body 3 to make lumbar support body 3 rotate along its hinged end and the support of gangbar 9 more smooth. In addition, the middle lower part of the rear end of the lumbar support body 3 is fixedly connected with the rear part or integrally extended to form a support rod 31, and the upper end part of the linkage rod 9 is hinged with the support rod 31; the supporting rod 31 is hinged with the linkage rod 9 and transmits the stress of the lumbar support body 3 to the linkage rod 9.

Finally, the tray 4 is a tilting tray, and the lower end part of the linkage rod 9 is arranged on the movable part of the tray 4 and can rotate relative to the movable part 41 of the tray 4. In the technical scheme, the chair back support frame 5 and the chair back 2 and the waist support body 3 connected with the chair back support frame can realize tilting swing based on the tilting tray. In the process of inclining, the linkage type supporting range of the waist support body 3 is large, the waist support body 3 is adaptive to fit the waist of a user, and the comfort is good. In the specific scheme, the rear end of the tilting tray is linked with a telescopic adjusting component 42, the rear end of the telescopic adjusting component 42 is connected with a mounting seat 43, the lower end part of the chair back supporting frame 5 is locked and fixed through the mounting seat 43, and the lower end part of the linkage rod 9 is hinged on the mounting seat 43. The telescopic adjusting component 42 is used for sliding adjustment during installation, and is suitable for adjustment on different models or adjustment on process errors of the same product. The arrangement of the mounting seat 43 fixes the chair back supporting frame 5 on one hand and provides a foundation for the hinging of the linkage rod 9 on the other hand.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that those skilled in the art may make variations, modifications, substitutions and alterations within the scope of the present invention without departing from the spirit and scope of the present invention.

Claims (8)

1. A chair back is characterized in that: comprises a supporting upright post (6) positioned at the center and a plurality of elastic supporting units (7) which are connected to the supporting upright post (6) and are arranged side by side up and down; the elastic support unit (7) comprises a support main body made of elastic materials, the support main body is an arc-shaped body protruding backwards and provided with a forward opening, and a connecting portion (73) used for being connected to the support upright post (6) is arranged at the center of the rear end of the support main body.

2. The chair back of claim 1, wherein: the elastic supporting unit (7) further comprises a flexible core layer laid on the front end face of the supporting main body and a surface layer coated on the outer side of the flexible core layer; the edges of the facing are fixed to the support body.

3. The chair back of claim 2, wherein: the supporting main body comprises a base plate (71) and a lining plate (72) which are respectively made of elastic materials, and the lining plate (72) covers the front end face of the base plate (71) and is fixedly connected with the base plate (71); the connecting part (73) is connected with the base plate (71); the flexible core layer is laid on the front end face of the lining plate (72), and the edge of the surface layer is clamped between the base plate (71) and the lining plate (72).

4. The chair back of claim 3, wherein: the connecting portion (73) is an elastic connecting portion (73) that is integrally constructed with the base plate (71).

5. A chair back as claimed in claim 3, wherein: connecting portion (73) are the lantern ring, and the lantern ring is inside to be equipped with the shaft hole of wearing to establish the support shaft pole, and the front end center department of base plate (71) is equipped with the inside communicating connecting hole in shaft hole with the lantern ring.

6. The chair back of claim 2, wherein: a headrest (81) is also arranged above the support upright (6), and the headrest (81) is constructed by the single elastic support unit (7).

7. The chair back of claim 5, wherein: the headrest mounting seat (8) is sleeved on the top of the supporting upright post (6) in a longitudinal sliding mode, and a hinge groove (82) is formed in the headrest mounting seat (8); the connecting part (73) of the headrest (81) is a rotating shaft, and the center of the rotating shaft is provided with a shaft hole; the screwing component passes through the shaft hole and is connected to the hinge groove (82); at least one side wall of the hinge groove (82) and the axial two side walls of the rotating shaft is provided with positioning teeth which are matched in the circumferential direction; the headrest (81) can rotate up and down relative to the headrest mounting seat (8) along the hinged end of the headrest, and is positioned based on the positioning teeth.

8. A seat, characterized by: comprising a chair back as claimed in any one of claims 1-6.

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