Prevent the automotive seat of surface cover fold
Technical field
The present invention relates to field of automobile seats, be specially a kind of automotive seat preventing surface cover fold.
Background technology
Automotive seat are by backrest and sit basin and form, and in order to attractive in appearance and comfortable, usually cover with surface cover leaning on outside backrest and seat basin.Angle between backrest and seat basin close to right angle, at present, surface cover bottom backrest and seat basin intersection be connect with three pieces to being put together, form two turnings, corner and mosaic often have fold to produce, and not only affect attractive in appearance, and fold place makes surface cover stress concentrate, and shortens service life.
Summary of the invention
In order to overcome the defect of prior art, providing the seat that a kind of structure is simple, convenient for production, any surface finish is smooth, the invention discloses a kind of automotive seat preventing surface cover fold.
The present invention reaches goal of the invention by following technical solution:
Prevent automotive seat for surface cover fold, comprise backrest and seat basin, present basin is fixed in the bottom of backrest, it is characterized in that: also comprise surface cover plate and surface cover,
Surface cover plate is made up of left side cage plate, right side cage plate, middle surface cover plate and bottom surface cage plate, left side cage plate and right side cage plate respectively split in the both sides of middle surface cover plate, bottom surface cage plate split in the bottom of middle surface cover plate,
The shape of middle surface cover plate is the axisymmetric closed figure be formed by connecting by top, base, lower-left side and bottom right side, wherein: top is trapezoidal with circular sliding slopes transition, base is linear portion, top two bottoms connect the top of lower-left side and the top of bottom right side respectively, lower-left side and bottom right side are all the convex circular arc to inside, top, the two ends on base connect the bottom of lower-left side and the bottom of bottom right side respectively
The shape of left side cage plate is the closed figure be formed by connecting by upper hypotenuse, end straight flange, limit, left side and right edge, wherein: the lower-left side of upper hypotenuse and middle surface cover plate matches each other, and the left bottom of limit, left side and middle surface cover plate top is spliced in smooth transition mode; The shape of right side cage plate and left side cage plate be (namely right side cage plate is the mirror image of left side cage plate) axisymmetricly; The top margin of bottom surface cage plate, left side and right side respectively with limit, the left side split of the base of middle surface cover plate, the right edge of left side cage plate and right side cage plate;
Prune an oblique angle in the bottom of middle surface cover plate lower-left side, described oblique angle is from a bit tilting to the inner side on middle surface cover plate base bottom the side of lower-left, and the vertical dimension at described oblique angle is not more than 30mm, and the horizontal clearance at described oblique angle is not more than 3mm;
Prune an oblique angle in the bottom of middle surface cover plate bottom right side, described oblique angle is from a bit tilting to the inner side on middle surface cover plate base bottom the side of bottom right, and the vertical dimension at described oblique angle is not more than 30mm, and the horizontal clearance at described oblique angle is not more than 3mm;
Respectively prune an oblique angle in the left side on middle surface cover plate base and right side, the oblique angle in left side is from the lower tilt of some side to left down the left bottom of base, the oblique angle on right side is from the lower tilt of some lower side to the right the bottom right side of base, the vertical dimension at described oblique angle is all not more than 30mm, and the horizontal clearance at described oblique angle is all not more than 3mm;
Surface cover is overlapped by left side cover, right side cover, middle surface cover and bottom surface and is formed, and left side cover, right side cover, middle surface cover and bottom surface are overlapped and be coated on outside left side cage plate, right side cage plate, middle surface cover plate and bottom surface cage plate respectively;
To be fitted in respectively on backrest and seat basin after surface cover plate outer cladding surface cover.
The described automotive seat preventing surface cover fold, is characterized in that: lower-left side and bottom right side are all the circular arc that central angle is not more than 60 °.
The described automotive seat preventing surface cover fold, is characterized in that: surface cover selects velvet or polyurethane (i.e. poly urethane is called for short PU) leather.
The present invention, can entirely docile be on surface cover plate surface when making surface cover coated by pruning hypotenuse at middle surface cover plate bottom corners place, and eliminate buckling phenomena, not only outward appearance is more attractive in appearance, and extends service life.
The invention has the beneficial effects as follows: structure is simple, and convenient for production, any surface finish is smooth.
Accompanying drawing explanation
Fig. 1 is the connection diagram of backrest and seat basin in the present invention;
Fig. 2 is the structural representation of surface cover plate in the present invention;
Fig. 3 is the structural representation of middle surface cover plate in the present invention;
Fig. 4 is the structural representation of surface cover in the present invention;
Fig. 5 is that in the present invention, surface cover is coated on the generalized section after on backrest;
Fig. 6 is the schematic diagram that the present invention uses rear elimination fold.
Detailed description of the invention
The present invention is further illustrated below by way of specific embodiment.
Embodiment 1
Prevent automotive seat for surface cover fold, comprise backrest 1, seat basin 2, surface cover plate 3 and surface cover 4, as shown in Fig. 1 ~ Fig. 6, concrete structure is:
One side of present basin 2 is fixed in the bottom of backrest 1;
Surface cover plate 3 as shown in Figure 2, is made up of left side cage plate 31, right side cage plate 32, middle surface cover plate 33 and bottom surface cage plate 34, left side cage plate 31 and right side cage plate 32 respectively split in the both sides of middle surface cover plate 33, bottom surface cage plate 34 split in the bottom of middle surface cover plate 33,
The shape of middle surface cover plate 33 is the axisymmetric closed figures be formed by connecting by top 331, base 332, lower-left side 333 and bottom right side 334, wherein: top 331 is trapezoidal with circular sliding slopes transition, base 332 is linear portion, top 331 two bottoms connect the top of lower-left side 333 and the top of bottom right side 334 respectively, lower-left side 333 and bottom right side 334 are all the convex circular arc to inside, top 331, the two ends on base 332 connect the bottom of lower-left side 333 and the bottom of bottom right side 334 respectively
The shape of left side cage plate 31 is the closed figures be formed by connecting by upper hypotenuse 311, end straight flange 312, limit, left side 313 and right edge 314, wherein: the lower-left side 333 of upper hypotenuse 311 and middle surface cover plate 33 matches each other, and the left bottom of limit, left side 313 and middle surface cover plate 33 top 331 is spliced in smooth transition mode; The shape of right side cage plate 32 and left side cage plate 32 be (namely right side cage plate 32 is mirror images of left side cage plate 31) axisymmetricly; The top margin of bottom surface cage plate 34, left side and right side respectively with limit, the left side split of the base of middle surface cover plate 33, the right edge of left side cage plate 31 and right side cage plate 32;
As shown in Figure 3, prune an oblique angle in the bottom of middle surface cover plate 33 lower-left side 333, described oblique angle is from a bit tilting to the inner side on middle surface cover plate 33 base 332 bottom lower-left side 333, as shown in the dotted line of two, the lower left corner in Fig. 3, the vertical dimension at described oblique angle is not more than 30mm, and the horizontal clearance at described oblique angle is not more than 3mm;
Prune an oblique angle in the bottom of middle surface cover plate 33 bottom right side 334, described oblique angle is from a bit tilting to the inner side on middle surface cover plate 33 base 332 bottom bottom right side 334, and the vertical dimension at described oblique angle is not more than 30mm, and the horizontal clearance at described oblique angle is not more than 3mm;
Respectively prune an oblique angle in the left side on middle surface cover plate 33 base 332 and right side, the oblique angle in left side is from the lower tilt of some side 333 to left down the left bottom of base 332, the oblique angle on right side is from the lower tilt of some lower side 334 to the right the bottom right side of base 332, the vertical dimension at described oblique angle is all not more than 30mm, and the horizontal clearance at described oblique angle is all not more than 3mm;
Surface cover 4 as shown in Figure 4, is overlapped 44 by left side cover 41, right side cover 42, middle surface cover 43 and bottom surface and is formed, and left side cover 41, right side cover 42, middle surface cover 43 and bottom surface are overlapped 44 and be coated on outside left side cage plate 31, right side cage plate 32, middle surface cover plate 33 and bottom surface cage plate 34 respectively;
As shown in Figure 5, to be fitted in respectively on backrest 1 and seat basin 2 after surface cover plate 3 outer cladding surface cover 4.
In the present embodiment, lower-left side 333 and bottom right side 334 are all the circular arc that central angle is not more than 60 °.
Surface cover 4 can select velvet or polyurethane (i.e. poly urethane is called for short PU) leather.
The present invention by 4 hypotenuses of pruning at middle surface cover plate 33 bottom corners place, when making surface cover 4 coated can entirely docile surface cover plate 3 surface, eliminate buckling phenomena, as shown in the dashed circle in Fig. 6, not only outward appearance is more attractive in appearance, and extends service life.