CN203280102U - Backrest chair with arc backrest frame - Google Patents
Backrest chair with arc backrest frame Download PDFInfo
- Publication number
- CN203280102U CN203280102U CN2013202311203U CN201320231120U CN203280102U CN 203280102 U CN203280102 U CN 203280102U CN 2013202311203 U CN2013202311203 U CN 2013202311203U CN 201320231120 U CN201320231120 U CN 201320231120U CN 203280102 U CN203280102 U CN 203280102U
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- Prior art keywords
- chair
- frame
- backrest frame
- backrest
- structure material
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model provides a backrest chair with an arc backrest frame, which solves the problem that members of the arc backrest frame are not firmly connected in the prior art. According to the utility model, the arc backrest frame of the chair is formed through inserting a plurality sections of rob members, and axial lines of all the member sections at the connecting parts form included angles with the ground, and are not vertical to the ground.
Description
Technical field
The utility model relates to field of furniture, particularly a kind of chair.
Background technology
Chair on the market is in different poses and with different expressions, height, size and shape are different, structure and manufacturing process are each has something to recommend him, its backrest forms mainly with the wood frame formula, due to material therefor limitation, framework is that left and right column, lower and upper cross-member are formed by connecting mainly with quadrangle, is added with many fence type columns in the middle of framework.This quadrilateral frame posture structure, profile is stiff, also there is a problem, the crossbeam and the column that are exactly traditional tenon joint type connection are easily loosening in long-term use procedure, severe patient also can get loose, particularly for those because of the produced not chair of material aridity, this problem is particularly outstanding, to the user, has brought hidden danger.In addition, existing method of attachment can't produce the chair of circular arc backrest frame.
The utility model content
The purpose of this utility model is to provide a kind of chair with circular arc backrest frame, with each member of chair that solves circular arc backrest frame in prior art, connects not firm problem.
According to the utility model, the backrest frame of chair is circular arc, be to be pegged graft and formed by multistage bar structure material, and each section structure material forms an angle at the axis of connecting portion with respect to ground, and is not perpendicular to the ground.
Preferably, engage with the wedge groove by the wedge tooth between described structure material.
Further, described wedge tooth is reinforced with engaging by bonding agent of wedge groove.
Preferably, described backrest frame comprises the contraction flow region of expansion section and the bottom on top, and described contraction flow region is fixedly connected on the seat of chair.
Further, circular hole is left in the side frame of described seat and rear frame junction, and this circular hole is passed in described contraction flow region bottom, by this circular hole locking.
Further, each back leg with chair of described contraction flow region lower end is pegged graft.
Preferably, insert respectively in the hole of being located at frame two ends after the chair seat lower end of described backrest frame.
The utility model has solved existing back both sides commonly used and has occurred loosening problem with column with using up and down crossbeam draw pin and mortise ease of connection, has also solved simultaneously and has had to utilize whole plate cutting and insufficient strength (due to the texture structure that whole plate cuts) to be difficult for producing the problem with the chair of circular arc backrest in the prior art.
Description of drawings
Fig. 1 has schematically shown the stereogram of the chair of an exemplary embodiments of the utility model;
Fig. 2 has schematically shown the front view of the chair of an exemplary embodiments of the utility model;
Fig. 3 has schematically shown the schematic diagram according to a backrest frame of the present utility model;
Fig. 4 is the enlarged drawing at B place in Fig. 3;
Fig. 5 is the schematic diagram according to the seat of a chair of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As depicted in figs. 1 and 2, the chair of the present embodiment comprises leg 1, seat 2, handrail 3, backrest grizzly bar 4 and backrest frame 5.Simultaneously with reference to figure 3, the backrest frame of chair is circular arc, to be processed into varying cross-section shape (as circle etc.) after being pegged graft by multistage structure material to form, and, each section structure material is not perpendicular to the ground at the axis of connecting portion, this makes when the backrest frame after fixing by the chair seat, produces one between each section structure material and points to making a concerted effort of backrest center, make intermesh each other and be difficult for loosening, throw off.
In the exemplary embodiments shown in Fig. 3, backrest frame 5 respectively has first a structure material 51, the second structure material 52 and the 3rd structure material 53 to be spliced symmetrically.Wherein, the first material 51 and the second structure material 52 form the expansion section of backrest frame 5, the 3rd structure material 53 forms the contraction flow region of backrest frame 5, and this up big and down small arc structure more is conducive to the formation at above-mentioned oblique angle, and the chucking power that forms when the contraction flow region of bottom is fixedly connected on seat 2 is larger.
Fig. 4 is the enlarged drawing at B place in Fig. 3, and it demonstrates the connected mode between the structure material.As shown in Figure 4, be to peg graft by wedge groove and the wedge tooth (wedge tooth and wedge groove) of interlocking between the structure material, preferably, the height of wedge tooth is not less than 15mm, more preferably 30mm or higher.This meshing structure provides larger composition surface, and cohesive force is very large when using bonding agent.In addition, because wedge tooth and wedge groove have enough sizes, and the backrest frame axis of its bonding part forms an angle (namely having got rid of axis situation perpendicular to the ground) with respect to ground, can not come off along the vertical direction between the each several part structure material of backrest frame, and the chucking power that is connected to form due to seat, it is loosening that each connected structure material also can along continuous straight runs.
C place in Fig. 3 is namely the access section of backrest frame 5 and seat 2.Simultaneously referring to Fig. 5, seat 2 comprises side frame 21, rear frame 22 and intermediate plate 23, draw out a circular hole 24 at place, the composition surface of side frame 21 and rear frame 22 and pass for backrest frames 2, impose high strength in three intersection gluing and run through intermeshing grafting inclined-plane with lateral pin mobile tightening member is not fastening vertically to guarantee each section plug connector.
As shown in Figure 3, in this embodiment, the linkage section 53 of chair backrest frame is connected in and is arranged in the synthetic draw-in groove (hole) in seat board 2 left and right sides and rear side side bar confluent angle position (see Fig. 5 25), linkage section 54 is plugged on 53 bottoms, being the positive splayed in space towards chair left and right sides and rear side arranges, the space three-dimensional of realizing chair is stressed, to strengthen the stability of chair.
The utility model has solved existing back both sides commonly used and has occurred loosening problem with column with using up and down crossbeam draw pin and mortise ease of connection, has also solved simultaneously and has had to utilize whole plate cutting and insufficient strength (due to the texture structure that whole plate cuts) to be difficult for producing the problem with the chair of circular arc backrest in the prior art.
Abovely by the design of an exemplary embodiments to this aspect, describe, for a person skilled in the art, the utility model can carry out multiple change and variation to above-described embodiment.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. the chair with circular arc backrest frame, is characterized in that, the backrest frame of chair is circular arc, be to be pegged graft and formed by multistage structure material, and each section structure material forms an angle at the axis of connecting portion with respect to ground, and is not perpendicular to the ground.
2. chair according to claim 1, is characterized in that, engages with the wedge groove by the wedge tooth between described structure material.
3. chair according to claim 2, is characterized in that, described wedge tooth is reinforced with engaging by bonding agent of wedge groove.
4. chair according to claim 1, is characterized in that, described backrest frame comprises the contraction flow region of expansion section and the bottom on top, and described contraction flow region is fixedly connected on the seat of chair.
5. chair according to claim 4, is characterized in that, circular hole is left in the side frame of described seat and the junction of rear frame, and this circular hole is passed in described contraction flow region bottom, by this circular hole locking.
6. chair according to claim 5, is characterized in that, each back leg with chair of described contraction flow region lower end is pegged graft.
7. chair according to claim 1, is characterized in that, insert respectively in the hole of being located at frame two ends after the chair seat lower end of described backrest frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202311203U CN203280102U (en) | 2013-05-01 | 2013-05-01 | Backrest chair with arc backrest frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202311203U CN203280102U (en) | 2013-05-01 | 2013-05-01 | Backrest chair with arc backrest frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203280102U true CN203280102U (en) | 2013-11-13 |
Family
ID=49536488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202311203U Expired - Fee Related CN203280102U (en) | 2013-05-01 | 2013-05-01 | Backrest chair with arc backrest frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203280102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103211434A (en) * | 2013-05-01 | 2013-07-24 | 湖南植野集成家居有限公司 | Back rest chair with circular arc-shaped back rest frame |
-
2013
- 2013-05-01 CN CN2013202311203U patent/CN203280102U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103211434A (en) * | 2013-05-01 | 2013-07-24 | 湖南植野集成家居有限公司 | Back rest chair with circular arc-shaped back rest frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140501 |