CN201403871Y - Sofa chair with backrest capable of being movably adjusted - Google Patents
Sofa chair with backrest capable of being movably adjusted Download PDFInfo
- Publication number
- CN201403871Y CN201403871Y CN2009200557823U CN200920055782U CN201403871Y CN 201403871 Y CN201403871 Y CN 201403871Y CN 2009200557823 U CN2009200557823 U CN 2009200557823U CN 200920055782 U CN200920055782 U CN 200920055782U CN 201403871 Y CN201403871 Y CN 201403871Y
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- CN
- China
- Prior art keywords
- backrest
- connecting rod
- sofa
- groove
- connection block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model relates to a sofa chair with a backrest capable of being movably adjusted, which comprises a cushion, a backrest and armrests, wherein the cushion and the armrests are installed on asofa frame, a support is arranged inside the backrest, the rear portion of the sofa frame is equipped with a connection seat, two ends of the connection seat are respectively provided with a downwardgroove in front and rear directions, the bottom of each of the grooves is movably hinged to two connection bars, the upper ends of the two connection bars are movably hinged to the support, and the connection bars can movably rotate forwards and backwards around the hinge joints inside the grooves and are positioned by front walls and rear walls at the upper ends of the grooves. When abutted to the front walls at the upper ends of the grooves of the connection seat, the connection bars form an included angle with the vertical direction; when abutted to the rear walls at the upper ends of thegrooves of the connection seat, the connection bars form an included angle with the vertical direction, and the former included angle is larger than the latter one. The connection seat is a two-stageshoulder bearing surface with high-low fall head, and the shape of the lower end of the backrest matches with the structure of the shoulder bearing surface. The sofa chair utilizing the above structure has simple and reasonable structural design and comfortable usage.
Description
Technical field
The utility model belongs to furniture and makes the field, is specifically related to the sofa seat of the movable adjusting of a kind of backrest.
Background technology
Present sofa seat, mainly comprising cushion, backrest and handrail composition, generally all is fixed structure, the sofa seat of this structure, when the people of different height builds is seated, may not reach comfortable sitting posture, the user of common women, little chap's stature, the back that is seated after need leaning on just can be resisted against on the sofa backrest, and this sitting posture state, user foot can not the position in preferable placement, if yield to foot, then the back can't lean against on the sofa backrest.
Summary of the invention
The purpose of this utility model is to provide a kind of structural design advantages of simple, keeps the sofa seat of the movable adjusting of backrest of comfortable sitting posture applicable to various users.
The purpose of this utility model is achieved in that the sofa seat of the movable adjusting of a kind of backrest, comprise cushion, backrest and handrail, cushion, handrail are installed on the sofa frame, it is characterized in that: be provided with support in the described backrest, the rear portion of sofa frame is provided with a connecting seat, the Connection Block two ends offer a downward groove respectively on fore-and-aft direction, each bottom portion of groove is movably hinged with two connecting rods, the upper end and the support of two connecting rods are movably hinged, connecting rod rotates with the pin joint front and back in groove movably, and is undertaken spacing by the front and rear wall on the groove respectively.
The angle of connecting rod and vertical direction formation when the angle that connecting rod and vertical direction formed when described connecting rod was resisted against the groove upper end antetheca of Connection Block is resisted against groove upper end rear wall greater than connecting rod.
Described Connection Block is the two-stage shoulder supporting surface with high low head, and backrest lower end shape matches with shoulder supporting surface structure, and the backrest lower end is seated on the shoulder supporting surface of Connection Block.
Good effect of the present utility model: adopt the sofa seat of this structure, when connecting rod was resisted against the antetheca of groove upper end, backrest moved forward; When connecting rod was resisted against rear wall in groove upper end, backrest moved backward, makes position of back can be fit to the user of various different height builds, and the structural design advantages of simple is used comfortable.
As further improvement of the utility model, structure is designed to the angle of the connecting rod angle that connecting rod and vertical direction form when being resisted against groove upper end antetheca connecting rod and vertical direction formation when being resisted against groove upper end rear wall greater than connecting rod, just there is a height fall in the back bracket that is installed in small end so, height when backrest is positioned at front end is lower than the height that is positioned at the rear end, makes backrest height can be fit to the user of the various different height bodily forms.
Connection Block is the two-stage shoulder supporting surface with high low head, backrest lower end shape matches with shoulder supporting surface structure, and the backrest lower end is seated on the shoulder supporting surface of Connection Block, this structural design, sofa backrest and Connection Block supporting ﹠ stablizing and structure compactness attractive in appearance, associative perception is stronger.
Description of drawings
The user mode figure of sofa seat when Fig. 1 is positioned at front end for backrest;
The user mode figure of sofa seat when Fig. 2 is positioned at the rear end for backrest;
Sofa frame structural representation when Fig. 3 is positioned at front end for support;
Sofa frame structural representation when Fig. 4 is positioned at the rear end for support;
Connection Block internal structure schematic diagram when Fig. 5 is positioned at front end for connecting rod;
Connection Block internal structure schematic diagram when Fig. 6 is positioned at the rear end for connecting rod.
The specific embodiment
Be described in further detail below in conjunction with the specific embodiment of accompanying drawing the sofa seat of the movable adjusting of the utility model backrest.
Embodiment: shown in Fig. 1-6, the sofa seat of the movable adjusting of backrest described in the utility model, mainly by cushion 1, backrest 2 and handrail 3 are formed, cushion 1, handrail 3 is installed on the sofa frame 4, be provided with support 5 in the backrest 2, be provided with a connecting seat 6 at the rear portion of sofa frame 4, Connection Block 6 two ends offer a downward groove 60 respectively on fore-and-aft direction, each bottom portion of groove is movably hinged with connecting rod 70 and connecting rod 71, the upper end of two connecting rods and support 5 are movably hinged, connecting rod 70 and connecting rod 71 movably in groove 60 with rotation before and after the pin joint, and undertaken spacing by the antetheca 600 and the rear wall 601 of groove 60 upper ends respectively.The angle α 2 that connecting rod 70 and vertical direction formed when the angle α 1 that connecting rod 70 and vertical direction formed when connecting rod 70 was resisted against antetheca 600 places of groove 60 was resisted against rear wall 601 places of groove greater than connecting rod 71.This Connection Block 6 has the one-level shoulder supporting surface 61 and the secondary circular bead surface 62 of high low head, and backrest 2 lower end shapes match with Connection Block 6 surface structure, and backrest 2 lower ends are seated in the one-level shoulder supporting surface 61 or the secondary circular bead surface 62 of Connection Block 6.
Use is as follows: for the user of most of women and little chap's stature, generally need be with the height of backrest 2 toward reach and reduction backrest, to reach comfortable sitting posture effect, this moment is as long as push away backrest 2 forward, make connecting rod 70 be resisted against antetheca 600 places of groove 60, rear portion, backrest 2 lower end is seated on the one-level shoulder supporting surface 61 of Connection Block 6 (as shown in Figure 1).For the user of tall person's stature, then need backrest 2 is moved backward, and the height of backrest 2 wants high, during adjusting, backrest 2 is carried toward the back upper place, made connecting rod 71 be resisted against rear wall 601 places, backrest 2 lower ends are seated on the one-level shoulder supporting surface 61 and secondary shoulder supporting surface 62 of Connection Block 6.Adopt the sofa seat of the movable adjusting of backrest of this structure, structural design is very reasonable, and easy to operate.
Claims (3)
1, the sofa seat of the movable adjusting of a kind of backrest, comprise cushion, backrest and handrail, cushion, handrail are installed on the sofa frame, it is characterized in that: be provided with support in the described backrest, the rear portion of sofa frame is provided with a connecting seat, the Connection Block two ends offer a downward groove respectively on fore-and-aft direction, each bottom portion of groove is movably hinged with two connecting rods, the upper end and the support of two connecting rods are movably hinged, connecting rod rotates with the pin joint front and back in groove movably, and is undertaken spacing by the front and rear wall on the groove respectively.
2, the sofa seat of the movable adjusting of backrest according to claim 1 is characterized in that: the angle of connecting rod and vertical direction formation when the angle that connecting rod and vertical direction formed when described connecting rod was resisted against the groove upper end antetheca of Connection Block is resisted against groove upper end rear wall greater than connecting rod.
3, the sofa seat of the movable adjusting of backrest according to claim 2, it is characterized in that: described Connection Block is the two-stage shoulder supporting surface with high low head, backrest lower end shape matches with shoulder supporting surface structure, and the backrest lower end is seated on the shoulder supporting surface of Connection Block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200557823U CN201403871Y (en) | 2009-04-30 | 2009-04-30 | Sofa chair with backrest capable of being movably adjusted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200557823U CN201403871Y (en) | 2009-04-30 | 2009-04-30 | Sofa chair with backrest capable of being movably adjusted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201403871Y true CN201403871Y (en) | 2010-02-17 |
Family
ID=41674787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200557823U Expired - Fee Related CN201403871Y (en) | 2009-04-30 | 2009-04-30 | Sofa chair with backrest capable of being movably adjusted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201403871Y (en) |
-
2009
- 2009-04-30 CN CN2009200557823U patent/CN201403871Y/en not_active Expired - Fee Related
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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: 20100217 Termination date: 20120430 |