CN205113082U - Chair for vehicles - Google Patents

Abstract

The utility model discloses a saddle's of the backrest that the improvement is gone on the headrest supporting structure intensity. Skeleton (back frame (10) of backrest (2) of seat (1) have the frame main part (10A) that is assembled into the word of falling U form, combine and support (15) of going on supporting to rest the head on (4) and integrative upper plate (13) of setting up between two shanks of top tube (12) between the lateral part frame of the left and right sides that becomes frame main part (10A) with the saddle's that constitutes frame main part (10A) top tube (12) integratively. Seat (1) constitutes for erect bracket (16) that comprise other components outside them between top tube (12) and upper plate (13) integratively.

Description

Seat for vehicle

Technical field

The utility model relates to seat for vehicle.Specifically, the skeleton relating to back of seat have be assembled into inverted U-shaped chassis body, the upper frame that is incorporated into this chassis body integratedly and seat for vehicle to the reinforced frame between the side frame of the rest the head on support supported and the left and right being set up in chassis body integratedly.

Background technology

In the past, in vehicle seat used, there will be a known the structure (patent documentation 1) being provided with the support to the tubular that headrest stay supports at the upper frame of the skeleton of the upper lateral part forming back of seat.Specifically, above-mentioned upper frame sets up integratedly and is located between the upper end of each side frame of the skeleton in the left and right sides portion forming back of seat.Further, weld integratedly at the position, two, left and right of the pars intermedia extended along seat width direction of above-mentioned upper frame and be provided with the support of above-mentioned tubular.

Prior art document

Patent documentation

Patent documentation 1 Japanese Laid-Open 2008-201234 publication

Utility model content

The problem that utility model will solve

In the above prior art, when applying powerful from the head of seated person etc. to headrest when the collision of vehicle occurs etc., the load excessive via above-mentioned support puts on the upper frame of back of seat, and upper frame exists the possibility reversed and wait and do not carry out supporting fully.The utility model is founded as situation about solving the problem, and problem to be solved in the utility model is the structural strength of the upper frame improved the back of seat supported of resting the head on.

[for solving the scheme of problem]

In order to solve above-mentioned problem, seat for vehicle of the present utility model adopts following means.

First utility model relates to a kind of seat for vehicle, and the skeleton of its back of seat has and is assembled into inverted U-shaped chassis body and is combined integratedly with the upper frame of chassis body and to the reinforced frame between the side frame of the rest the head on support supported and the left and right being set up in chassis body integratedly.Seat for vehicle sets up the bracket having other component outside by upper frame and reinforced frame to form integratedly between upper frame and reinforced frame.

According to this first utility model, by setting up bracket integratedly between upper frame and reinforced frame, the structural strength of upper frame can be improved.Above-mentioned bracket is made up of other component outside upper frame and reinforced frame.Therefore, the basic structure of upper frame or reinforced frame need not be changed, adding by means of only bracket, just can improve the structural strength to the upper frame supported of resting the head on.

Second utility model, based on the first above-mentioned utility model, is set to following structure.Upper frame is set to the shape between the side frame of left and right with the pipe portion extended along seat width direction cylindrically.Reinforced frame is set to the shape between the side frame of left and right with the flat part made facing to seat fore-and-aft direction.Bracket has the fitting portion in the pipe portion being embedded in upper frame from the outside of radial direction, is affixed on the abutting part of the flat part of reinforced frame from seat fore-and-aft direction with the state that face abuts, and welding and be incorporated into each abutting portion of pipe portion and flat part.

According to this second utility model, even if when creating the error of assembling position between upper frame and/or reinforced frame, by fitting portion, bracket is welded in the pipe portion of upper frame with also can staggering setting angle.And by abutting part, bracket is welded in the flat part of reinforced frame with also can staggering installation site.Therefore, absorb structure by these, bracket can be combined in the mode of the error suitably absorbing their assembling position between upper frame with reinforced frame.

3rd utility model, based on the above-mentioned first or second utility model, is set to following structure.Bracket setting is in two positions in the seat width direction of upper frame.Bracket be set up in integratedly become each support configuration between the pars intermedia in seat width direction of upper frame in region and reinforced frame.

According to the 3rd utility model, bracket is arranged to the pars intermedia position in the seat width direction in the load entrance point close to headrest, bears the state achieving balanced load input between the support at two positions, left and right.Therefore, it is possible to be arranged to by bracket, favourable state is inputted to load.

Accompanying drawing explanation

Fig. 1 is the block diagram of the schematic configuration of the seat for vehicle that embodiment is shown.

Fig. 2 is the block diagram main portion of the seat for vehicle shown in Fig. 1 being carried out decomposing and illustrate.

Fig. 3 is the main portion amplification stereogram of the seat for vehicle representing state bracket being assembled in back frame.

Fig. 4 is the front view of the main portion of the seat for vehicle shown in Fig. 3.

Fig. 5 is the cutaway view of the main portion of the V-V line shown in Fig. 4.

Fig. 6 is the cutaway view of the main portion of the VI-VI line shown in Fig. 4.

Fig. 7 is the cutaway view of the main portion of the VII-VII line shown in Fig. 4.

Detailed description of the invention

Below, about for implementing mode of the present utility model, accompanying drawing is used to be described.

Embodiment

First, about the structure of the seat 1 of embodiment, use Fig. 1 ~ Fig. 7 to be described.It should be noted that, in the following description, as " seat width direction " " height of seat direction " to various direction enclose " seat " record when, represent the various directions relative to seat 1.And, when being recited as " inside seat " " outside seat ", represent " inner side " " outside " in seat width direction respectively.As shown in Figure 1, the seat 1 of the present embodiment forms the right seat of the self-propelled vehicle as so-called coupe style.Above-mentioned seat 1 possess the backrest becoming seated person back of seat 2, become the Chain cushion 3 in the portion of taking one's seat, become the headrest 4 of head rest.

Back of seat 2 links with the rearward end of Chain cushion 3 and arranges.Chain cushion 3 become not shown pair of right and left slide rail is sandwiched between and the state be attached on vehicle floor.Headrest 4 becomes and inserts and be assemblied in the state on the top of back of seat 2.

Back of seat 2 has: the metal back frame 10 forming the cage construction of the inside of back of seat 2; Be assembled in the front portion of back frame 10 and mildly bear the back cushion 20 of the polyurathamc of the body pressure of seated person; And the fabric backrest cover 30 of back of seat 2 entirety is covered from outer circumferential side.

Back frame 10 has: the body side frame 11 be made up of steel plate materials of pair of right and left lengthwise shape; And across each body side frame 11 upper end between and the inverted U-shaped upper pipe 12 be made up of round steel pipe material set up integratedly; Between two legs stepping up the left and right of pipe 12 and the upper plate 13 be made up of steel plate materials of the shape of growing crosswise set up integratedly; Across each body side frame 11 bottom between and the lower plate 14 be made up of steel plate materials of the shape of growing crosswise set up integratedly; With the support 15 of the square tube shape that the position, two, left and right of upper pipe 12 is combined; Step up the bracket 16 as tension member set up integratedly between pipe 12 and upper plate 13.

Pair of right and left body side frame 11 and the upper pipe 12 set up integratedly between their upper end form inverted U-shaped chassis body 10A, and chassis body 10A forms the left and right sides portion of back of seat 2 and the skeleton of upper lateral part.Upper plate 13 as tension member sets up integratedly relative to upper pipe 12 and is located between the side frame in the upper side region of chassis body 10A, namely goes up between the leg of the left and right sides of pipe 12.And, set up integratedly relative to body side frame 11 as the lower plate 14 of tension member and to be located between the side frame in the lower side region of chassis body 10A, i.e. between the bottom of each body side frame 11.In the present embodiment, upper pipe 12 is equivalent to " upper frame " of the present utility model, and upper plate 13 is equivalent to " reinforced frame " of the present utility model.

Each body side frame 11 is configured to the component of the skeleton in the left and right sides portion becoming back of seat 2 respectively.Each body side frame 11 is formed by 1 steel plate materials of the shape cutting into lengthwise along height of seat direction respectively.Each body side frame 11 be set to the opposed facing mode of medial surface make facing to seat width direction arrange state.Each body side frame 11 is set to position, each edge shape that (inner side in seat width direction) bends inside seat of their side, front and back respectively.Thus, the edge that each body side frame 11 becomes the end of fore-and-aft direction to the structure of cavetto inside seat, protruding outside not to back of seat 2 of the edge of end.And, because each body side frame 11 edge of being set to end is to the structure of cavetto inside seat, improve as the overall structure to intensity that is bending or that reverse of structure so become.

As the formation portion on the shoulders of the left and right sides of back of seat 2 and the component of the skeleton of upper lateral part, upper pipe 12 is formed by round steel pipe material buckles is become inverted U-shaped shape.Each end that upper pipe 12 is set as the front end of the lower side bending of both sides to the left and right embeds respectively and is welded in the state gathering into semi-tubular shape formed in the upper end of each body side frame 11.By combining, upper pipe 12 becomes in the mode will linked between the upper end of each body side frame 11 firmly and the state be set up in integratedly between them.At the pars intermedia 12A along the cylindrical extension in seat width direction of upper pipe 12, in the position at two positions becoming its left and right object, the support 15 of the square tube shape of side bearing headrest 4 is set to and embeds from seat front side and the state of welding integratedly from below.In the present embodiment, pars intermedia 12A is equivalent in " pipe portion " of the present utility model.

Upper plate 13 is formed by a steel plate materials of the shape cutting into lengthwise along seat width direction.Upper plate 13 is set to the state facing to seat fore-and-aft direction, and each end 13A of its left and right sides is affixed on the rear face of each leg of the left and right sides of pipe 12 respectively, by being welded to firmly and the state combined integratedly (with reference to Fig. 7).As shown in Figure 2, the edge of the end of the above-below direction of upper plate 13 is set to the shape to the bending of seat front side respectively.Thus, the edge of the end of the above-below direction of upper plate 13 is rounded off to seat front side, and the edge of end is not outstanding to seat rear side.And, because the structure that the edge that upper plate 13 becomes end is rounded off inside seat, can improve as the overall structure to intensity that is bending or that reverse of structure so become.

And, upper plate 13 is set to central portion 13B that middle section in its seat width direction formed relative to from seat rear side and the both ends 13A that each leg of the left and right sides of upper pipe 12 is combined, and is formed in and bends and the shape of position of keeping out of the way to seat rear side two-stage.Specifically, upper plate 13 is formed in the region of departing from outside seat than each support 15 be combined with the position, two, left and right of upper pipe 12: the first kink 13C1 bent obliquely to seat rear side from the region inside the seat of each end 13A be combined with each leg of upper pipe 12; With the region of the front end extended inside seat from each first kink 13C1 further to the second kink 13C2 that seat rear side bends obliquely.Upper plate 13 is set to the shape to the bending of seat rear side two-stage.

By being set to such shape, upper plate 13 becomes the central portion 13B formed in the position of the front end bent from each end 13A of its left and right sides to seat rear side two-stage and to be formed as compared with region between the configuration of each support 15 along seat width direction throughout wider region.The central portion 13B of upper plate 13 is formed in the position of keeping out of the way to seat rear side, thus as shown in Figure 1, insert to each support 15 and the resinous each supporting member 40 that headrest 4 is supported assembled and/or all can not interfering with upper plate 13 respectively metal each stay 4A that headrest 4 supports of inserting to each supporting member 40 and assemble.In the present embodiment, the central portion 13B of upper plate 13 is equivalent to " flat part " of the present utility model.

Each supporting member 40 is set to and inserts from upper side and be assemblied in the state of each support 15 integratedly.Each supporting member 40 is formed as the shape than each support 15 lengthwise, can respectively length direction on a large scale in insert from upper side with the state support born from outer circumferential side and be assemblied in each stay 4A of the headrest 4 of each supporting member 40.It should be noted that, the structure of each stay 4A of each supporting member 40 and/or headrest 4 becomes known structure disclosed in the documents such as Japanese Laid-Open 2013-107573 publication, therefore omits detailed description.

At this, each support 15 is set to via each supporting member 40, headrest 4 (each stay 4A) to be bearing in the mode of the position of stretching out to the occipital seat front side close to seated person, with each leg of the left and right sides with upper pipe 12 along the angle erected to seat front side compared with the direction that short transverse extends towards the state being installed on upper pipe 12.Therefore, by inserting each supporting member 40 than their lengthwises to each support 15, inserting further each stay 4A than they more headrests 4 of lengthwise to each supporting member 40, becoming above-mentioned supporting member 40 or stay 4A thus towards being positioned at the structure that the direction more close than the upper plate 13 at each support 15 seat chair rear side place extends.Therefore, the central portion 13B of upper plate 13 is set to the shape being formed at the position of keeping out of the way to seat rear side as mentioned above.

Lower plate 14 is formed by 1 steel plate materials of the shape cutting into lengthwise along seat width direction.Lower plate 14 is set to the state facing to seat fore-and-aft direction, and each end of its left and right sides is affixed on the position, edge of the rear side to lateral buckling in seat of each body side frame 11 respectively from seat front side, by being welded to firmly and the state combined integratedly.By above-mentioned combination, lower plate 14 becomes in the mode will linked between the bottom of each body side frame 11 firmly and the state be set up in integratedly between them.The position, each edge of the upper and lower sides of lower plate 14 becomes the shape to the bending of seat front side respectively.Thus, the edge that lower plate 14 becomes the position, each edge of its upper and lower sides is rounded off in order to avoid exposing to seat rear side to seat front side and improves as the overall structure to intensity that is bending or that reverse of structure.

As shown in Figure 2 to 4, bracket 16 is formed by carrying out punch process to 1 steel plate materials.Bracket 16 with step up pipe 12 the pars intermedia 12A becoming the seat width direction in the region between the configuration being assembled with each support 15 and become pars intermedia 12A positive underside area upper plate 13 central portion 13B between mode, being affixed on them from seat front side, being set to by welding firmly and the state combined integratedly.

Seat 1 is had and is combined integratedly with the central portion 13B of upper plate 13 by the pars intermedia 12A of upper pipe 12 by bracket 16 and the structure strengthened.Therefore, even if seat 1 rear impact of vehicle such as occurs and produces the input head of seated person being pressed on strongly the such large load of headrest 4 from seat front side, also this load can be supported strongly by back frame 10.Bracket 16 is set to following state: be set as with in large load input as described above during pipe 12 on pipe 12 do not produce mode that is bending and/or that reverse and the load of pipe 12 in input suitably passed to the shape that upper plate 13 supports, and be formed as invalidly making shape or the surging rational shape of weight.

Specifically, bracket 16 is formed as following shape: there is the header board portion 16A facing to seat fore-and-aft direction, each side plate 16B that the position, each edge of the left and right sides from header board portion 16A bends to seat rear side, except the region of the downside of rising wood with the central part in the seat width direction from header board portion 16A to the seat rear side form press-in of half punch press process and the hang plate portion 16C that formed obliquely.As shown in Fig. 4 and Fig. 6 ~ Fig. 7, the width length that header board portion 16A is formed as its seat width direction becomes constant flat shape from upper limb side to lower edge side.As shown in Figure 5, header board portion 16A, relative to upper pipe 12, installs with the direction roughly the same with the direction of installing each support 15, is set as its front surface and is configured to the state with the face of the front surface substantially flush surface shape of each support 15.Specifically, header board portion 16A, in the front surface mode that side is outstanding forward not from each support 15, is formed as the shape slightly toward the position that seat rear side is kept out of the way at the front surface than each support 15 with face.

As shown in Figure 5, the length that each side plate 16B is formed as extending from their header board portion 16A to seat rear side is respectively the shape that increases of arc-shaped ground from upper limb side towards lower edge side.Further, in the position, edge of the upside of each side plate 16B, the shape of arc-shaped is dug through in the bight of its seat rear side, forms the fitting portion 16B1 making it possible to be fitted together to from seat front side at the outer peripheral face of upper pipe 12.

It should be noted that, in aforesaid explanation, the length extended to seat rear side describing each side plate 16B is the shape that increases of arc-shaped ground from upper limb side towards lower edge side, but strictly speaking, the part of the formation lower surface area of the fitting portion 16B1 of each side plate 16B be formed as locally than their underside area to the shape that extends of the longer ground of seat rear side.Thereby, it is possible to guarantee the area making each fitting portion 16B1 chimeric with the outer peripheral face of upper pipe 12 significantly, each fitting portion 16B1 can be made chimeric significantly with the outer peripheral face of upper pipe 12 and guarantee to weld long welding longlyer.

And, be formed in the position, edge of the downside of each side plate 16B and at right angles bend and outstanding flange part 16B2 outside seat from their angular position to the front end that seat rear side extends.As shown in Figure 5, each flange part 16B2 direction of being set to their face relative to the direction in the face of header board portion 16A the shape of direction bending that retreats.Specifically, the angle of inclination of each flange part 16B2 becomes: from by each fitting portion 16B1 from seat front side be affixed on the pars intermedia 12A of upper pipe 12 outer peripheral face and chimeric state, with the pars intermedia 12A of the upper pipe 12 of this chimeric circular section shape for axle center and make bracket 16 swing to seat rear side, be affixed on the such angle of inclination of the central portion 13B of upper plate 13 from seat front side with the state that face abuts thus.Each flange part 16B2 is formed as the shape had in seat short transverse by a relatively large margin, and the state abutted with face is affixed on the most region of the short transverse between the position, edge of the upside to the bending of seat front side of upper plate 13 and the position, edge of downside.At this, each flange part 16B2 is equivalent to " abutting part " of the present utility model.

As shown in Fig. 2 ~ Fig. 4 and Fig. 6 ~ Fig. 7, hang plate portion 16C by from the forming position of each fitting portion 16B1 than header board portion 16A slightly by the zone line of downside to the region of lower edge side, be pressed in the mode of angle half punch press process tilted to seat rear side one-tenth and formed.Thus, above-mentioned hang plate portion 16C be set to be formed as its by the dip plane that is pressed into obliquely towards the face relative to header board portion 16A towards become lean forward towards the state of shape.

As shown in Figure 5, hang plate portion 16C be set to its by the position, edge of downside that tilts to extrude in the position, edge of the upside with flange part 16B2 along position (slightly downside the position) place of short transverse general alignment, the mode with the position of position, the edge same degree of the rear side of each side plate 16B, bulged-in shape is obliquely projected to seat rear side.Further, hang plate portion 16C, in order to avoid the interference with upper plate 13, is formed as the shape along upper plate 13 and the shape of cutting obliquely than the region on the lower, position, edge of the roughly upside of flange part 16B2.

Bracket 16 is set to shape as described above, is formed as the edge side shape that section factor increases gradually towards lower edge side from it thus.Bracket 16 is set as by each fitting portion 16B1, from seat front side is chimeric with the outer peripheral face of pipe 12, face abuts, and after by each flange part 16B2, from seat front side is affixed on, face is connected to the state of upper plate 13, respectively arc-welding is carried out to these face abutting portion, becomes firm thus and be incorporated into the state of pipe 12 and upper plate 13 integratedly.It should be noted that, in the drawings, the state being defined welding bead Wb by arc-welding is shown.

By the arranging of bracket 16, back frame 10 becomes the state to the structural strength bent and/or reverse or rigidity that suitably improve combination pipe 12 and upper plate 13 and upper side region of forming on this.Therefore, even if such as apply stronger pressing force from the head of seated person to headrest 4 due to the generation of the rear impact of vehicle, this power also can be born by the upper pipe 12 strengthened by bracket 16 or upper plate 13 strongly.

Specifically, bracket 16 be formed as from the position, edge of the upside that pipe on this 12 is combined towards the position, edge with the downside that upper plate 13 is combined, the degree of depth that the seat rear side to hang plate portion 16C is pressed into is the skewed shape deepened.Thus, bracket 16 be formed as to the load of the moment of deflection born during this headrest 4 applied load increase gradually from the position, edge of upside towards the position, edge of downside, its section factor increases the shape of (cross section second moment increases) gradually with the shape corresponding with the size of above-mentioned load.The change of the section factor of bracket 16 by the shape of the inclination of hang plate portion 16C, from the position, edge of upside towards the position, edge of downside be not the stage change, but smoothly to change.Thus, the stress that the part that bracket 16 can not change at its section factor produces locality is concentrated, but overall by bracket 16, and the buckling distortion ground not with locality bears the load being input to upper pipe 12 from headrest 4 strongly.

Back cushion 20 is by being that the form of basic profile in back of seat 2 is formed by urethane resin foaming and molding.Back cushion 20 is assembled from seat front side to the back frame 10 being assembled into quadrangle frame-shaped, the quadrilateral frame entirety of back frame 10 is widely covered thus from seat front side, and by each circumference of lower left and right thereon formed to seat rear side in each extension shape being involved in shape and extending, install into from each outer circumferential side up and down and/or the state of quadrilateral frame entirety widely covering back frame 10 from seat rear side.And, after back cushion 20 is assembled to back frame 10, will be sewn into bag-shaped backrest cover 30 from upper side cover, its each position is hung in back cushion 20, or be anchored on back frame 10, become thus and to be pressed by the establishing power of backrest cover 30 and to be held in the state of back frame 10.

The multi-disc sheets that backrest cover 30 will be cut by corresponding to the shape of each of back of seat 2 is stitched into the bag shape of 1 and is formed.Above-mentioned backrest cover 30 is with from after on seat upper side cover, the mode of bag is assembled in the back cushion 20 after above-mentioned assembling, its each position, edge is blocked mutually and hangs or be anchored on back frame 10, thus to be set as can not to produce on the surface of back cushion 20 and to float or fold and the state be close to widely.

If to summarizing above, then the seat 1 (seat for vehicle) of the present embodiment becomes following structure.That is, the skeleton (back frame 10) of the back of seat 2 of seat 1 has: be assembled into inverted U-shaped chassis body 10A; The support 15 that headrest 4 supported joined integrally with the upper pipe 12 of the upper frame becoming chassis body 10A; The upper plate 13 (reinforced frame) set up integratedly between two legs of the upper pipe 12 between the side frame of left and right becoming chassis body 10A.Seat 1 is set to the structure of setting up the bracket 16 be made up of other component outside them between upper pipe 12 and upper plate 13 integratedly.

Like this, by setting up bracket 16 integratedly between upper pipe 12 and upper plate 13, the structural strength of upper pipe 12 can be improved.Bracket 16 is made up of other component outside upper pipe 12 and/or upper plate 13.Therefore, need not change the basic structure of pipe 12 and/or upper plate 13, adding by means of only bracket 16, just can improve the structural strength to the upper pipe 12 that headrest 4 supports.

And upper pipe 12 is set to the shape between two legs about it with the pars intermedia 12A (pipe portion) along the cylindrical extension in seat width direction.Upper plate 13 is set to the shape between two legs of upper pipe 12 with the flat central portion 13B (flat part) facing to seat fore-and-aft direction.Bracket 16 has the fitting portion 16B1 of the pars intermedia 12A being embedded in upper pipe 12 from the outside of radial direction and is affixed on the flange part 16B2 (abutting part) of the central portion 13B of upper plate 13 from seat front to the state abutted with face, is incorporated into each abutting portion of pars intermedia 12A and central portion 13B by welding.

By becoming such structure, even if when producing the error of assembling position between upper pipe 12 and/or upper plate 13, by fitting portion 16B1, bracket 16 is welded in the pars intermedia 12A of pipe 12 with also can staggering setting angle.And by flange part 16B2, bracket 16 is welded in the central portion 13B of upper plate 13 with can staggering installation site.Therefore, absorb structure by these, bracket 16 can be combined in the mode of the error suitably absorbing their assembling position at upper pipe 12 between upper plate 13.

And two positions in the seat width direction of pipe 12 are located at by support 15.Bracket 16 be set up in integratedly become each support 15 configuration between the pars intermedia 12A in seat width direction of upper pipe 12 in region and upper plate 13.

By becoming such structure, bracket 16 is arranged to the pars intermedia in the seat width direction in the load entrance point close to headrest 4, bears the state achieving balanced load input between the support 15 at two positions, left and right.Therefore, it is possible to be arranged to by bracket 16, favourable state is inputted to load.

Above, use 1 embodiment to describe embodiment of the present utility model, but the utility model in addition to the above described embodiments, can implement in every way.Such as, " seat for vehicle " of the present utility model also can be applied to the seat beyond the right seat of self-propelled vehicle, in addition, can also be the seat of the vehicle be applied to beyond the self-propelled vehiclees such as train, and, can also be widely used in for the various seat used for vehicle such as aircraft, boats and ships.

And " reinforced frame " also can set up integratedly and be located between each body side frame of back of seat.Namely, as long as the structure that reinforced frame sets up integratedly between the side frame of the left and right of the chassis body in inverted U-shaped composition, can be set up in form left and right side frame upper pipe two legs between structure, also can be set up in the structure between each body side frame.

And " support " also can be affixed on the upper frame of chassis body from seat rear side and combine.And " bracket " also can be affixed on the either one or both the upper frame of chassis body and reinforced frame from seat rear side and combine.And " bracket ", between upper frame and reinforced frame, can be located at multiple positions in seat width direction.And " bracket " can be between upper frame and reinforced frame, the structure arranged with the non-symmetrical shape in left and right and/or configuration.The shape of above-mentioned " bracket " is not limited to the shape shown in above-described embodiment, can apply the situation of various shape.And " bracket " can be the structure formed by multiple Component composition.

And " upper frame " of chassis body, when its region in conjunction with bracket is circular tube shaped, is assembled, but also can not be formed as circular tube shaped with can absorbing the error of the assembling angle of bracket.And reinforced frame too, when its region in conjunction with bracket is tabular, is assembled, but also can not be formed as tabular with can absorbing the error of the assembling position of bracket.

Nomenclature

1 seat (seat for vehicle)

2 back of seats

3 Chain cushions

4 headrests

4A stay

10 back frames

10A chassis body

11 body side frames

(upper frame) is managed on 12

12A pars intermedia (pipe portion)

13 upper plates (reinforced frame)

13A end

13B central portion (flat part)

13C1 first kink

13C2 second kink

14 lower plates

15 supports

16 brackets

16A header board portion

16B side plate

16B1 fitting portion

16B2 flange part (abutting part)

16C hang plate portion

20 back cushion

30 backrest cover

40 supporting members

Wb welding bead

Claims (10)

1. a seat for vehicle, possesses:

Back of seat;

Chassis body, is assembled into inverted U-shaped, has the function of the skeleton as described back of seat, a pair side frame possessing upper frame and arrange in the left and right of described upper frame;

Support, joined integrally and headrest is supported with described upper frame;

Reinforced frame, is set up between described a pair side frame integratedly; And

Bracket, is set up between described upper frame and described reinforced frame integratedly, and is made up of the component outside described upper frame and described reinforced frame.

2. seat for vehicle according to claim 1, wherein,

Described upper frame is set to the shape between described a pair side frame with the pipe portion along the cylindrical extension in seat width direction,

Described reinforced frame is set to the shape between described a pair side frame with the flat part facing to seat fore-and-aft direction,

Described bracket has the fitting portion in the described pipe portion being embedded in described upper frame from the outside of radial direction and is affixed on the abutting part of described flat part of described reinforced frame from seat fore-and-aft direction with the state that face abuts, and abutting portion and the described flat part of described pipe portion and described fitting portion combine by welding with the abutting portion of described abutting part.

3. seat for vehicle according to claim 1 and 2, wherein,

Described support is arranged at two positions in the seat width direction of described upper frame respectively,

Described bracket be set up in integratedly become described each support configuration between the pars intermedia in seat width direction of described upper frame in region and described reinforced frame.

4. the seat for vehicle according to any one of claims 1 to 3, wherein,

Described bracket have the header board portion facing to seat fore-and-aft direction, the left and right sides from described header board portion position, each edge to the pair of side plates portion that seat rear side bends and from the middle position on the seat width direction in described header board portion downside region to seat rear side tilt and formed hang plate portion.

5. seat for vehicle according to claim 4, wherein,

It is the shape that arc-shaped increases from upper limb side towards lower edge side that described pair of side plates portion is set to the length extended from described header board portion to seat rear side respectively,

Described pair of side plates portion has the fitting portion of arc-shaped respectively in the position of described upper limb side,

Described fitting portion is embedded in the outer peripheral face of described upper frame from seat front side.

6. seat for vehicle according to claim 4, wherein,

As described abutting part, be respectively equipped with in the position, edge of the downside in described pair of side plates portion and at right angles to bend and outstanding flange part outside seat from the angular position of the front end extended to seat rear side.

7. seat for vehicle according to claim 6, wherein,

Described flange part is set to relative to described header board portion with the shape towards bending of hypsokinesis.

8. seat for vehicle according to claim 6, wherein,

The position that the position, edge that described hang plate portion is set to downside arranges along short transverse in the position, edge of the upside with described flange part, projects to the shape with the position of position, the edge same degree of the rear side in described pair of side plates portion to seat rear side.

9. the seat for vehicle according to any one of claims 1 to 3, wherein,

Described reinforced frame has the central portion that formed at the middle section of seat Width and from seat rear side and the both ends that each leg of the left and right sides of described upper frame is combined,

The described central portion of described reinforced frame is formed at and is two-stage bending relative to described both ends to seat rear side and the position of keeping out of the way.

10. seat for vehicle according to claim 9, wherein,

Described reinforced frame position near described both ends has the first kink bent obliquely to seat rear side, have respectively from the region extended respectively to direction inside seat from described first kink further to the second kink that seat rear side bends obliquely close to the position of described central portion than described first kink, described central portion is formed at the position of keeping out of the way to seat rear side relative to described both ends thus.