CN102673455B - Seat backrest frame structure for seat of vehicle - Google Patents
Seat backrest frame structure for seat of vehicle Download PDFInfo
- Publication number
- CN102673455B CN102673455B CN201110055229.1A CN201110055229A CN102673455B CN 102673455 B CN102673455 B CN 102673455B CN 201110055229 A CN201110055229 A CN 201110055229A CN 102673455 B CN102673455 B CN 102673455B
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- side frame
- seat
- undercarriage
- rear flange
- frame
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- Chair Legs, Seat Parts, And Backrests (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides a seat backrest frame structure for a seat of a vehicle. The frame structure can realize rigid strengthening of the seat backrest frame without increase of number of parts, structure complication and the like. In the seat backrest frame structure for the seat of the vehicle, a lower frame (20) comprises a rear piece (20A); the rear piece (20A) stretches in a manner of being overlapped with left and right ends on an inner surface (10Cb) of a rear flange (10C); the location for welding the lower frame (20) relative to the rear flange (10C) of a side frame (10) is two rows of an inner row along the inner edge of the rear flange (10C) of the side frame (10) and an outer row along the free end edge of the rear flange (10C); and the vertical location of welding (A) of the inner row and welding (B) of the outer row is a staggered location, which is different transversely.
Description
Technical field
The present invention relates to a kind of vehicle seat used back of seat framework to make, this vehicle seat used back of seat framework is made and is connected between the top of the side frame of left and right and between bottom respectively with added and undercarriage, thus forms it into roughly front rectangle.
Background technology
As improving the substantially rectangular lateral rigidity of back of seat frame in front and the formation of torsional rigid, between disclosing in Japanese Unexamined Patent Publication 2000-333769 publication after left and right side frame, set up the formation of cross bar as tension member regularly.The back of seat frame being recorded in this publication forms roughly square frame shape by added, side frames and undercarriage, is provided with bottom tension member and top tension member between side frames.Lower crosspiece and upper cross bar are by being formed as roughly Contraband tee section by upper and lower both sides towards side warpage in opposite directions.In addition, added and side frames is formed integrally as roughly inverted U-shaped by grillage.In addition, form recess respectively in the bottom, side of side frames, under the state that the both ends of lower crosspiece are entrenched in this recess respectively, lower crosspiece is fixed on side frame by bolt and nut.Upper cross bar is also fixed on the recess of a upper lateral part of side frames with bolt 15, nut.In addition, the undercarriage be made up of pipe support is fixed with in the lower end of side frames.
[patent documentation 1] Japanese Unexamined Patent Publication 2000-333769 publication
Summary of the invention
But in above-mentioned vehicle seat used back of seat framework is in the past made, the substantially rectangular back of seat frame in front has added the cross bar forming the component outside undercarriage, so along with number of components increases, job engineering increases to improve rigidity.In addition, cross bar although be entrenched in the recess of side frame, but produces scale error unavoidably between recess and cross bar, and in addition, side frame and crossbar end screw bolt and nut are fixed, so lateral rigidity is easily deteriorated at one-sided 1.In addition, because undercarriage is pipe, so weight easily increases, in addition, with for can also causing being formed complicated by the synchronous mode adapter shaft establishing that connects the leaning device of left and right.
The object of the present invention is to provide and a kind ofly do not make number of components increase, form the vehicle seat used back of seat framework that the rigidity that just can realize back of seat frame such as complicated strengthens and make.
Vehicle seat used back of seat framework of the present invention make connect the side frame of left and right with added and undercarriage respectively top between and between bottom, thus it is substantially rectangular to be formed as front; It is characterized in that:
The above-mentioned side frame of left and right at least has the flange outstanding to the inward side of above-mentioned seat as rear flange at the end edge of above-mentioned side frame,
Above-mentioned undercarriage comprises the roughly U-shaped cross section from the front side of above-mentioned side frame to rear side,
The left and right end portions of the rear portion sheet of above-mentioned undercarriage configures with the above-mentioned rear flange of above-mentioned side frame with overlapping,
Above-mentioned undercarriage is relative to the position of weld of the above-mentioned rear flange of above-mentioned side frame, 2 row inside and outside the outer rows of the inner column for the inner edge of the above-mentioned rear flange along above-mentioned side frame and the free ora terminalis along above-mentioned rear flange, the upper and lower position of the welding of above-mentioned inner column and the welding of above-mentioned outer rows is staggered position different from each other, left and right.
In this vehicle seat used back of seat framework is made, undercarriage is formed with comprising roughly U-shaped cross section from the front side of side frame to rear side, so, extension is realized in the end of undercarriage, cross bar in the past can be doubled as, so, lateral rigidity and torsional rigid are improved, and can the increase of peventing member quantity, the complicated of formation.In addition, the left and right end portions of the rear portion sheet of undercarriage overlap side frame rear flange configure, undercarriage relative to the position of weld of the rear flange of side frame be the inner edge of rear flange along side frame inner column and inside and outside the outer rows of the free ora terminalis of rear flange 2 row, the upper and lower position of the welding of inner column and the welding of outer rows is staggered position different from each other, left and right, so, weld strength increases, and can positively improve lateral rigidity and torsional rigid.In addition, do not need in order to make cross bar stable, cross bar to be entrenched in recess as in the past, so, do not need high working accuracy, do not utilize bolt, nut, so, can workability be improved.
In addition, the front-end edge of undercarriage is preferably formed as bar shaped shape for lugs (ビ ー De shape).
Formation as adopted, then can positively prevent liner (パ ッ De) from disconnecting at the front-end edge of side frame.
According to the present invention, do not cause the increase of number of components, the complicated of formation etc. just can realize the rigidity strengthening of back of seat frame.
Accompanying drawing explanation
Fig. 1 is for representing the block diagram of the embodiment that the back of seat framework of chair of the present invention (リ Network ラ イ ニ Application グ シ ー ト) is made.
Fig. 2 is the block diagram representing side frame and undercarriage.
Fig. 3 represents the block diagram having welded the state of undercarriage at side frame.
Fig. 4 is the section drawing of the A-A line along Fig. 3.
Detailed description of the invention
Below, the preferred implementation that the back of seat framework of the chair that present invention will be described in detail with reference to the accompanying is made.
As shown in Figure 1, chair 1 has the back of seat freely fascinated relative to back of seat, and seat frame 2 is formed as bone lattice piece by seat cushion, and back of seat frame 3 is formed as bone lattice piece by back of seat.
On this seat frame 2, open the spring 4 established for the wire from downside supporting seat cushion, back of seat frame 3 is opened the spring 5 established for the wire from rear side supported seat backrest.
In addition, the lower end of back of seat frame 3, relative to the turning cylinder 7 set up in left and right in the rear end of seat frame 2 freely pivot dress, by being promoted by control lever 6, can make back of seat frame 3 tilt.
As shown in Figures 2 and 3, back of seat frame 3 by left and right side frame 10 be connected left and right side frame 10 top between and added 11 between bottom and undercarriage 20 to be formed as when facing substantially rectangular.
This side frame 10 is formed as roughly Contraband tee section by sidewall 10A, front flange 10B and rear flange 10C; This sidewall 10A has the side surface 10Aa extended at above-below direction; This front flange 10B has the front surface 10Ba that the front-end edge along sidewall 10A extends, and inside side side is given prominence to; This rear flange 10C has the rear surface 10Ca that the end edge along sidewall 10A extends, and inside side side is given prominence to.
The bottom 10a of the side frame 10 of left and right is set up by the undercarriage 20 doubling as tension member of the tabular extended in the horizontal direction.The enlarged portion 21 being located at the left and right of undercarriage 20 is stretched out forward, and the side end 20a of undercarriage 20 configures along the profile of the bottom 10a of the sidewall 10A of side frame 10 around turning cylinder 7.Then, the enlarged portion 21 of undercarriage 20 is configured to the roughly U-shaped cross section from the front surface 10Ba of side frame 10 to rear surface 10Ca.
Therefore, realize extension at the side end 20a of undercarriage 20, cross bar in the past can be doubled as, so, lateral rigidity and torsional rigid can be improved, and can the increase of peventing member quantity and the complicated of formation.
As shown in Figure 1 to 4, the right and left end 20a of undercarriage 20 makes it possible to set up front flange 10B, the sidewall 10A of side frame 10 and rear flange 10C ground is extended.Formation as adopted, then can improve the bottom 10a of side frame 10 and the integrated of undercarriage 20, the further distortion of the side frame 10 that can prevent undercarriage 20 from causing around turning cylinder 7.
Undercarriage 20 has rear portion sheet 20A and front piece 20B, and configure to the inside face 10Cb coincidence left and right end portions of this rear portion sheet 20A flange 10C below, this front piece 20B configures in front flange 10B coincidence left and right end portions.In addition, the central portion 20Ba of front piece 20B is formed as straight shape, and the enlarged portion 21 of the both sides of front piece 20B is formed deviously.
Rear flange 10C is formed wider than front flange 10B, and overlapping area becomes large.Like this, the rigidity strengthening of back of seat frame 3 is realized.
In addition, undercarriage 20 relative to the position of weld of the rear flange 10C of side frame 10 be the inner edge of rear flange 10C along side frame 10 inner column and inside and outside the outer rows of the free ora terminalis of rear flange 10C 2 row, the upper and lower position of the welding A of inner column and the welding B of outer rows is staggered position different from each other, left and right.
Therefore, weld strength increases, and can positively improve lateral rigidity and torsional rigid, so, undercarriage can be also used as tension member.In addition, do not need in order to make cross bar stable, cross bar to be entrenched in recess as in the past, so, do not need high working accuracy, do not utilize bolt, nut, so, can workability be improved.
In addition, the front-end edge of undercarriage 20 becomes bar shaped shape for lugs.Therefore, it is possible to positively prevent liner from rupturing at the front-end edge of side frame 10.
The present invention does not limit above-mentioned embodiment certainly.The left and right end portions of the front piece 20B of such as undercarriage 20 overlaps and extends at front flange 10B, so, about this intersection, also above-mentioned staggered welding can be implemented at the outside face of front piece 20B and inside face.
Description of reference numerals
1 ... chair, 2 ... seat frame, 3 ... back of seat frame, 7 ... turning cylinder, 10 ... side frame, 10A ... sidewall, 10Aa ... side surface, 10B ... front flange, 10Ba ... front surface, 10C ... rear flange, 10Ca ... rear surface, 10a ... the bottom of side frame, 20 ... undercarriage, 20a ... the side end of undercarriage, 20A ... rear portion sheet, 20B ... front piece, 21 ... enlarged portion, A ... welding, B ... welding.
Claims (2)
1. a vehicle seat used back of seat framework is made, and connect respectively, thus it is substantially rectangular to be formed as front with added and undercarriage by between the top of the side frame of left and right and between bottom; It is characterized in that:
The described side frame of left and right at least has the flange outstanding to the inward side of described seat as rear flange at the end edge of described side frame,
Described undercarriage comprises the enlarged portion of the left and right being located at described undercarriage, and described enlarged portion is configured to the roughly U-shaped cross section from the front surface of described side frame to rear surface,
The left and right end portions of the rear portion sheet of described undercarriage configures with the described rear flange of described side frame with overlapping,
Described undercarriage is relative to the position of weld of the described rear flange of described side frame, these inside and outside 2 row of the outer rows of the inner column for the inner edge of the described rear flange along described side frame and the free ora terminalis along described rear flange, the upper-lower position of the welding of described inner column and the welding of described outer rows is staggered position different from each other, left and right.
2. vehicle seat used back of seat framework according to claim 1 is made, and it is characterized in that: the front-end edge of described undercarriage is formed as bar shaped shape for lugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110055229.1A CN102673455B (en) | 2011-03-08 | 2011-03-08 | Seat backrest frame structure for seat of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110055229.1A CN102673455B (en) | 2011-03-08 | 2011-03-08 | Seat backrest frame structure for seat of vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102673455A CN102673455A (en) | 2012-09-19 |
| CN102673455B true CN102673455B (en) | 2015-05-13 |
Family
ID=46806219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110055229.1A Active CN102673455B (en) | 2011-03-08 | 2011-03-08 | Seat backrest frame structure for seat of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102673455B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456371A (en) * | 2007-12-14 | 2009-06-17 | 现代自动车株式会社 | Seatback frame for vehicles |
| CN101563255A (en) * | 2006-10-27 | 2009-10-21 | 约翰逊控制器有限责任公司 | Structural element for a vehicle seat |
| CN101677691A (en) * | 2007-04-18 | 2010-03-24 | 江森自控科技公司 | Tailor welded seat and parts |
-
2011
- 2011-03-08 CN CN201110055229.1A patent/CN102673455B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101563255A (en) * | 2006-10-27 | 2009-10-21 | 约翰逊控制器有限责任公司 | Structural element for a vehicle seat |
| CN101677691A (en) * | 2007-04-18 | 2010-03-24 | 江森自控科技公司 | Tailor welded seat and parts |
| CN101456371A (en) * | 2007-12-14 | 2009-06-17 | 现代自动车株式会社 | Seatback frame for vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102673455A (en) | 2012-09-19 |
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