CN218008952U

CN218008952U - Chair back assembly

Info

Publication number: CN218008952U
Application number: CN202221068806.0U
Authority: CN
Inventors: 孔航新; 王柏林; 汪军; 雷炳建
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-12-13
Anticipated expiration: 2032-05-05

Abstract

The utility model discloses a chair back component, which comprises a chair back frame and a backrest sponge body; the backrest frame is of a metal frame structure, and the backrest sponge body and the backrest frame are integrally formed in a foaming mode; a mounting cavity is reserved on the rear end face of the backrest sponge body, and the mounting cavity is configured to contain and mount the lumbar support assembly; the waist support component is embedded in the mounting cavity, and the upper end and the lower end of the waist support component are respectively connected with the chair back frame. The chair back frame can be foamed in the mould to form the backrest sponge body, so that the backrest sponge body can be directly molded into a shape with a mounting cavity at the rear end, and the processing and the manufacturing are more convenient; and because the installation cavity is reserved, the waist rest component can be embedded and installed in the installation cavity, and the concealed installation of the waist rest component is realized; the whole structure is more simple and beautiful.

Description

Chair back assembly

Technical Field

The utility model relates to a thing to sit on field, in particular to back of chair subassembly.

Background

The existing seat backs of the prior art adopt back frames with metal frame structures, and the back frames are further foamed and molded in a mold, so that sponge bodies are formed outside the back frames; the seat has the characteristics of convenient processing and good structural strength.

However, the existing chair back is usually provided with a lumbar support component, so that the lumbar support function of the chair back is realized; the chair back adopting the structure is difficult to additionally install a lumbar support component because the chair back frame and the sponge body are integrally formed; therefore, only one waist support can be simply placed at the front end of the chair, or the waist support assembly is sleeved on the chair back through the elastic ring; this makes the lumbar support assembly less integral with the chair back and also less aesthetically pleasing in construction.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a chair back component; the chair back frame can be foamed in a mould to form the backrest sponge body, so that the backrest sponge body can be directly molded into a shape with a mounting cavity at the rear end, and the mounting cavity does not need to be additionally arranged, so that the chair back frame is more convenient to process and manufacture; then, because the back sponge body rear end reserves out the installation cavity, thus the waist back assembly can be embedded and installed in the installation cavity, the waist back assembly is convenient to install, and the hidden installation of the waist back assembly is realized; the whole structure is more simple and beautiful.

The technical scheme of the utility model is realized like this:

a chair back assembly comprises a chair back frame and a chair back sponge body; the backrest frame is of a metal frame structure, and the backrest sponge body and the backrest frame are integrally formed in a foaming mode; a mounting cavity is reserved on the rear end face of the backrest sponge body, and the mounting cavity is configured to contain and mount the lumbar support assembly; the waist support component is embedded in the installation cavity, and the upper end and the lower end of the waist support component are respectively connected with the chair back frame.

Preferably, a horizontal upper connecting cross rod and a horizontal lower connecting cross rod are arranged in the middle of the chair back frame; the upper connecting cross rod is exposed out of the upper end of the mounting cavity, and the lower connecting cross rod is exposed out of the lower end of the mounting cavity; the upper connecting rail and the lower connecting rail are each configured to connect with a lumbar assembly. The upper connecting cross rod and the lower connecting cross rod can not only increase the structural strength of the chair back frame, but also just expose outside the installation cavity to connect the lumbar support component; achieves two purposes at one stroke and has ingenious design.

Preferably, the upper end of the lumbar support component is provided with horizontally spaced supporting clamping seats, and the supporting clamping seats extend forwards and upwards; the bearing clamping seat can be matched with the upper connecting cross rod in a vertically clamped mode. Thereby can directly lean on the subassembly with the waist during the installation from up being connected the horizontal pole joint down, simple to operate is swift.

Preferably, the upper connecting cross rod is a metal round rod, and the bearing clamping seat is in a hook shape; and the bearing clamping seat can rotate relative to the upper connecting cross rod. Thereby after the waist leans on subassembly upper end and last horizontal pole joint, the waist leans on the subassembly lower extreme can further rotate forward, makes the waist lean on subassembly lower extreme further to be connected with the lower horizontal pole of being connected.

Preferably, the backrest cavernosum is located the front end of last connection horizontal pole and still corresponds and is equipped with the spaced groove of dodging, should dodge the groove and can dodge bearing cassette and the cooperation of last connection horizontal pole joint. So that the sponge body of the backrest does not interfere with the bearing clamping seat.

Preferably, a fixing seat protruding downwards is arranged in the middle of the lower end of the lumbar support component, and the fixing seat is connected with the lower connecting cross rod through a screw. And the connection is convenient and stable by adopting screw connection.

Preferably, the lower connecting cross rod is a metal cross rod, a connecting part exposed out of the middle position of the lower end of the mounting cavity is arranged in the middle position of the lower connecting cross rod, and the connecting part is connected with the fixed seat. The lower connecting cross rod is only provided with the connecting part exposed outside the mounting cavity body, so that the exposed part of the lower connecting cross rod is less, the connecting effect is achieved, and the appearance is beautified.

Preferably, the lumbar support assembly comprises a base plate and a lumbar support main body arranged at the front end of the base plate; the size of the outline of the substrate is matched with that of the installation cavity. The mounting cavity can be covered by the mounting rear substrate, connecting traces are hidden, and the structure is more attractive.

Preferably, the lumbar support main body is arched in front of a backrest sponge body positioned at the front end of the lumbar support main body. The user can lean against the chair back and feel the function of the waist support.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

firstly, the chair back assembly of the utility model can form the backrest sponge body by foaming the chair back frame in the mould, so that the backrest sponge body can be directly molded into a shape with a mounting cavity at the rear end, and the mounting cavity does not need to be additionally arranged, thereby being more convenient to process and manufacture; then, because the installation cavity is reserved at the rear end of the backrest sponge body, the lumbar support component can be embedded and installed in the installation cavity, the installation of the lumbar support component is convenient, and the concealed installation of the lumbar support component is realized; the whole structure is more simple and beautiful.

Secondly, the upper connecting cross rod and the lower connecting cross rod of the chair back frame can just be exposed out of the upper end and the lower end of the mounting cavity, so that the upper end and the lower end of the waist support component are respectively connected with the upper connecting cross rod and the lower connecting cross rod, and the connecting strength of the waist support component is guaranteed.

Furthermore, when the waist support is installed, the upper end of the waist support component is clamped with the upper connecting cross rod; then the lower end of the waist rest component is connected with the lower connecting cross rod through screws; so that the waist rest component can be connected very quickly and conveniently.

Drawings

Fig. 1 is a schematic perspective view of a lumbar support assembly installed in an installation cavity according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a back frame according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of the chair back frame and the backrest sponge body after foaming and forming in the embodiment of the present invention;

fig. 4 is a schematic perspective view of another angle of the installation cavity according to the embodiment of the present invention;

fig. 5 is a schematic perspective view of the connection between the lumbar support assembly and the installation cavity in the embodiment of the present invention;

fig. 6 is a schematic perspective view of the front end of the lumbar support assembly in the embodiment of the present invention;

fig. 7 is a schematic perspective view of the rear end of the lumbar support assembly in the embodiment of the present invention;

fig. 8 is a side sectional view of a chair back assembly in an embodiment of the present invention.

The figures are numbered: a seatback frame 1; a side bar 1a; a backrest sponge 2; a mounting cavity 3; a lumbar support assembly 4; a substrate 4a; a lumbar support body 4b; a control pallet 4c; an upper connecting cross rod 5; a lower connecting cross bar 6; supporting the clamping seat 7; an avoidance slot 8; a fixed seat 9; a connecting portion 11.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. 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 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.

The specific implementation manner of the utility model is as follows:

as shown in fig. 1-8, the utility model provides a chair back assembly, which comprises a chair back frame 1 and a backrest sponge body 2; the chair back frame 1 is of a metal frame structure, and the backrest sponge body 2 and the chair back frame 1 are integrally foamed and molded; a mounting cavity 3 is reserved on the rear end face of the backrest sponge body 2, and the mounting cavity 3 is configured to accommodate and mount a lumbar support component 4; the waist support component 4 is embedded in the mounting cavity 3, and the upper end and the lower end of the waist support component 4 are respectively connected with the chair back frame 1. The chair back frame 1 can be foamed in a mould to form the backrest sponge body 2, so that the backrest sponge body 2 can be directly molded into a shape with a mounting cavity 3 at the rear end, the mounting cavity 3 does not need to be additionally arranged, and the processing and the manufacturing are more convenient; moreover, the installation cavity 3 is reserved at the rear end of the backrest sponge body 2, so that the lumbar support component 4 can be embedded in the installation cavity 3, the installation of the lumbar support component 4 is facilitated, and the concealed installation of the lumbar support component 4 is realized; the whole structure is more simple and beautiful.

As shown in fig. 2 to 7, the seat back frame 1 includes side bars 1a at two sides, and an upper connecting cross bar 5 and a lower connecting cross bar 6 connected between the two side bars 1a are provided at a middle position of the seat back frame 1, and the upper connecting cross bar 5 and the lower connecting cross bar 6 are spaced from each other. As shown in fig. 3-5, after the backrest sponge 2 and the backrest frame 1 are integrally foamed and formed, the upper connecting cross bar 5 is just exposed at the upper end of the mounting cavity 3, and the lower connecting cross bar 6 is just exposed at the lower end of the mounting cavity 3. The upper connecting cross rod 5 and the lower connecting cross rod 6 are respectively configured to be connected with the lumbar support component 4, and the upper connecting cross rod 5 and the lower connecting cross rod 6 can not only increase the structural strength of the chair back frame 1, but also just expose out of the mounting cavity 3 to connect the lumbar support component 4; achieves two purposes at one stroke and has ingenious design.

As shown in fig. 4-7, further: the lumbar support component 4 comprises a base plate 4a, a lumbar support body 4b arranged at the front end of the base plate 4a and a control supporting plate 4c arranged at the rear end of the base plate 4a and used for controlling the lifting adjustment of the lumbar support body 4b; certainly, in order to enrich the function of the lumbar support, the connection relationship between the control supporting plate 4c and the lumbar support main body 4b and the positioning matching relationship between the lumbar support main body 4b and the base plate 4a can be realized by various structures, for example, the connection between the control supporting plate 4c and the lumbar support main body 4b can be realized by arranging a socket on the base plate 4a so that a bridging plate connected on the control supporting plate 4c passes through the socket to be connected with the lumbar support main body 4b, and the positioning between the lumbar support main body 4b and the base plate 4a can be realized by adopting the matching relationship between an elastic bead and a positioning clamping groove; in other ways, reference may also be made to the presentation and description of the applicant in other patents on the same filing date, which are not the focus of the present invention, and therefore, the present embodiment is not described in detail; it will be appreciated that it is also possible to connect the lumbar support body 4b directly to the base plate 4a to eliminate the control blade 4 c.

The base plate 4a can be regarded as a lumbar support seat, which plays a role in supporting the lumbar support body 4b; the base plate 4a is used for being connected with the chair back frame 1, wherein the upper end of the base plate 4a is provided with a bearing clamping seat 8 which is horizontally arranged at intervals, the bearing clamping seat 8 is in a hook shape, and the bearing clamping seat 8 extends forwards and upwards; the bearing clamping seat 8 can be upwards clamped and matched with the upper connecting cross rod 5; as shown in fig. 4, the backrest cavernosum 2 is located the front end of connecting horizontal pole 5 and still corresponds and is equipped with spaced dodge groove 9, should dodge groove 9 and can dodge bearing cassette 8 and the cooperation of last connecting horizontal pole 5 joint for backrest cavernosum 2 does not take place to interfere with bearing cassette 8. Then can be directly lean on subassembly 4 from up being connected 5 joints of horizontal pole with last down with the waist during installation, simple to operate is swift. Moreover, the upper connecting cross rod 5 is a metal round pipe, and after the upper connecting cross rod 5 is clamped with the bearing clamping seat 8, the bearing clamping seat 8 can rotate around the upper connecting cross rod 5; thereby when the waist lean on 4 upper ends with last horizontal pole 5 joint back of being connected, the waist leans on 4 lower extremes of subassembly can further forward rotate, makes the waist lean on 4 lower extremes of subassembly further to be connected with lower horizontal pole 6 of being connected. A fixed seat 10 is arranged in the middle of the lower end of the substrate 4a, and the fixed seat 10 is connected with the lower connecting cross rod 6 by screws; in this way, the upper end of the substrate 4a is clamped with the upper connecting cross rod 5 through the bearing clamping seat 8, and only the lower end of the substrate 4a is connected with the lower connecting cross rod 6 through screws without locking the screws up and down; compared with the prior art, if the upper end and the lower end of the substrate 4a are locked by screws, the screw locking device adopts an upper clamping and lower locking mode, so that a plurality of screws can be saved, and the installation time and steps are also saved.

The lower connecting cross rod 6 is correspondingly a metal cross rod, the middle part of the lower connecting cross rod 6 is provided with a connecting part 11 exposed at the middle position of the lower end of the mounting cavity 3, and the fixed seat 10 is connected with the connecting part 11. And the lower connecting cross rod 6 is only provided with the connecting part 11 which is exposed out of the mounting cavity 3, so that the exposed part of the lower connecting cross rod 6 is less, the connecting function is realized, and the appearance is beautified. After the fixed seat 10 is connected with the connecting part 11 through screws, the waist rest component 4 is installed, and the operation is very convenient and fast. Then, after the backrest sponge body 2 and the backrest frame 1 are formed in a foaming mode, the upper connecting cross rod 5 and the lower connecting cross rod 6 can be just exposed out of the mounting cavity 3, and the lumbar support component 4 can be mounted in the mounting cavity 3 in a hidden mode; and the waist support component 4 can also be connected with the chair back frame 1, so that the connection strength is ensured.

As shown in fig. 1, the contour size of the substrate 4a is matched with the contour size of the mounting cavity 3, so that after the lumbar support component 4 is mounted, the lumbar support component 4 is completely accommodated in the mounting cavity 3, and the substrate 4a can cover the mounting cavity 3 to hide connection traces, so that the structure is more attractive; and only the control supporting plate 4c is exposed out of the rear end of the backrest sponge body 2, thereby being convenient for a user to operate. Further, as shown in fig. 8, the lumbar support body 4b is located in the installation cavity 3, and the lumbar support body 4b is arched forward to the back sponge 2 at the front end thereof. So that the user can feel the waist-supporting effect when leaning against the front end face of the chair back component.

Claims

1. A chair back assembly, comprising: comprises a chair back frame and a chair back sponge body; the chair back frame is of a metal frame structure, and the backrest sponge body and the chair back frame are integrally formed in a foaming mode; a mounting cavity is reserved on the rear end face of the backrest sponge body, and the mounting cavity is configured to accommodate and mount the lumbar support assembly; the waist support component is embedded in the installation cavity, and the upper end and the lower end of the waist support component are respectively connected with the chair back frame.

2. The chair back assembly of claim 1, wherein: the middle position of the chair back frame is provided with a horizontal upper connecting cross rod and a horizontal lower connecting cross rod; the upper connecting cross rod is exposed out of the upper end of the mounting cavity, and the lower connecting cross rod is exposed out of the lower end of the mounting cavity; the upper connecting rail and the lower connecting rail are each configured to connect with the lumbar support assembly.

3. The chair back assembly of claim 2, wherein: the upper end of the waist rest component is provided with horizontally spaced bearing clamping seats, and the bearing clamping seats extend forwards and upwards; the bearing clamping seat can be matched with the upper connecting cross rod in a vertically clamped mode.

4. The chair back assembly of claim 3, wherein: the upper connecting cross rod is a metal round rod, and the bearing clamping seat is in a hook shape; and the bearing clamping seat can rotate relative to the upper connecting cross rod.

5. The chair back assembly of claim 3, wherein: the front end that the back cavernosum is located the last horizontal pole of connecting still corresponds and is equipped with the spaced groove of dodging, should dodge the groove and can dodge bearing cassette and the cooperation of last horizontal pole joint of connecting.

6. The chair back assembly of claim 2, wherein: a fixing seat protruding downwards is arranged in the middle of the lower end of the waist rest component, and the fixing seat is connected with the lower connecting cross rod through screws.

7. The chair back assembly of claim 6, wherein: the lower connecting cross rod is a metal cross rod, a connecting part exposed out of the middle position of the lower end of the mounting cavity is arranged in the middle position of the lower connecting cross rod, and the connecting part is connected with the fixed seat.

8. The chair back assembly of claim 1, wherein: the lumbar support component comprises a substrate and a lumbar support main body arranged at the front end of the substrate; the size of the outline of the substrate is matched with that of the installation cavity.

9. The chair back assembly of claim 8, wherein: the waist rest main body is arched in front of the backrest sponge body positioned at the front end of the waist rest main body.