CN209037454U - The backrest frames of anti-surface cover deformation - Google Patents

Abstract

The utility model discloses a kind of backrest frames of anti-surface cover deformation, including backrest frames ontology, the upper end of backrest frames ontology has the upper bend pipe in " n " type, support shape steel wire is provided between two standpipes of upper bend pipe, the middle part of support shape steel wire convexes to form protrusion backward, a surface cover hook steel wire that is L-shaped and being located at below support shape steel wire is respectively arranged between protrusion and two standpipes, two surface cover hook steel wires are symmetrical set and horizontal segment is towards corresponding standpipe, the upper end of surface cover hook steel wire is to being welded and fixed with protrusion after the direction bending far from standpipe, it is welded and fixed after the lower end downward bending of surface cover hook steel wire with corresponding standpipe, to make surface cover hook steel wire gradually tilt backwards from bottom to top.When progress seat whips experiment, the intrusion volume of shoulders of human body is increased, the matching of shoulders of human body and head is improved, whiplash injury is effectively reduced；Surface cover tension effect is improved, prevents surface cover from deforming.

Description

The backrest frames of anti-surface cover deformation

Technical field

The utility model belongs to automotive seating art field, and in particular to a kind of backrest frames of anti-surface cover deformation.

Background technique

Motor vehicle seat back is usually made of headrest, backrest and cushion, is provided on automobile back skeleton for tensing The surface cover of surface cover links up with steel wire, and referring to fig. 4, existing surface cover hook steel wire A designs for integral type, and surface cover is linked up in the middle part of steel wire A Downward bending forms two symmetrical " n " shape structures, J-type of the surface cover by setting between two " n " shape structure Base cramp and fabric tense, and are respectively welded at bend pipe B on backrest frames after the both ends downward bending of surface cover hook steel wire A On two standpipes.

Existing surface cover hook steel wire is located in the same plane with bend pipe on backrest frames, whips experiment carrying out seat When shoulders of human body intrusion volume it is small, the matching on shoulder and head is not high, be unfavorable for reduce whiplash injury, and existing surface cover hang Hook steel wire length is longer, does not meet existing automotive seat and pursues light-weighted requirement.

Summary of the invention

In view of the above technical problems, the utility model be intended to provide it is a kind of can reduce whiplash injury anti-surface cover deformation Backrest frames.

For this purpose, the technology employed by the present utility model is a kind of backrest frames of anti-surface cover deformation, including lean on spine Frame ontology, the upper end of the backrest frames ontology have the upper bend pipe in " n " type, set between two standpipes of the upper bend pipe It is equipped with support shape steel wire, the middle part of the support shape steel wire convexes to form protrusion backward, divides between the protrusion and two standpipes It is not provided with a surface cover hook steel wire that is L-shaped and being located at below support shape steel wire, two surface cover hook steel wire bilateral symmetries Setting and horizontal segment is towards corresponding standpipe, the upper end of the surface cover hook steel wire to after the direction bending far from standpipe with Protrusion is welded and fixed, and is welded and fixed after the lower end downward bending of the surface cover hook steel wire with corresponding standpipe, to make The surface cover hook steel wire is gradually tilted backwards from bottom to top until flushing with protrusion.

Preferably, the angle formed between the vertical section and horizontal segment of the surface cover hook steel wire is obtuse angle.Use with Upper structure, surface cover link up with steel wire while meeting tension surface cover, and bigger to the bearing area of shoulders of human body, security performance is more Height, while there is preferably support shape effect to foam.

The beneficial effects of the utility model are: setting split type structure for surface cover hook steel wire, human body shoulder is just corresponded to Portion, surface cover hook steel wire gradually tilt backwards from bottom to top, when progress seat whips experiment, increase the intrusion of shoulders of human body Amount improves the matching of shoulders of human body and head, whiplash injury is effectively reduced；Surface cover, which tenses point, becomes two from an original point Point improves surface cover tension effect, prevents surface cover from deforming；Surface cover hook steel wire length shortens, and structure is more simple, more meets The light-weighted requirement of automobile chair frame.

Detailed description of the invention

Fig. 1 is the perspective view of the utility model；

Fig. 2 is the front view of the utility model；

Fig. 3 is cross-sectional view at the C-C of Fig. 2；

Fig. 4 is the structural schematic diagram that existing surface cover links up with bend pipe on steel wire and backrest frames.

Specific embodiment

By way of example and in conjunction with the accompanying drawings, the utility model is described in further detail:

As shown in Figure 1 to Figure 3, a kind of backrest frames of anti-surface cover deformation, are mainly made of backrest frames ontology 1, backrest The upper end of frame body 1 has the upper bend pipe 2 in " n " type, and support shape steel wire is provided between two standpipes 201 of upper bend pipe 2 3, the both ends of support shape steel wire 3 are respectively welded on two standpipes 201, and the middle part of support shape steel wire 3 convexes to form protrusion backward 301, protrusion 301 it is parallel with the transverse tube of upper bend pipe 2 and be it is horizontally disposed, between protrusion 301 and two standpipes 201 point It is not provided with a L-shaped surface cover hook steel wire 4, two surface cover hook steel wires 4 are symmetrical set in support shape steel wire 3 Lower section, and the horizontal segment of two surface covers hook steel wire 4 is towards corresponding standpipe 201, surface cover link up with the upper end of steel wire 4 to remote Be welded and fixed after direction bending from standpipe 201 with protrusion 301, surface cover link up with steel wire 4 lower end downward bending after with it is right The standpipe 201 answered is welded and fixed, so that surface cover hook steel wire 4 be made gradually to be tilted backwards from bottom to top until neat with protrusion 301 Flat, surface cover hook steel wire 4 is obliquely installed the support shape effect improved to foam, when progress seat whips experiment, increases people The intrusion volume of body shoulder improves the shifted matching on shoulder and head, and whiplash injury is effectively reduced, and surface cover links up with steel wire 4 The angle formed between vertical section and horizontal segment is obtuse angle, and surface cover hangs over two surface covers by J-type base cramp and loose and tight strip and links up with On the horizontal segment of steel wire 4, tool effectively prevent surface cover to deform there are two point is tensed.

Claims (2)

1. a kind of backrest frames of anti-surface cover deformation, including backrest frames ontology (1), the upper end of the backrest frames ontology (1) With the upper bend pipe (2) for being in " n " type, support shape steel wire (3) is provided between two standpipes (201) of the upper bend pipe (2), it should The middle part of support shape steel wire (3) convexes to form protrusion (301) backward, it is characterised in that: vertical in the protrusion (301) and two Surface cover hook steel wire (4) that is L-shaped and being located at below support shape steel wire (3), two faces are respectively arranged between pipe (201) Sleeve hanger steel wire (4) is symmetrical set and horizontal segment is towards corresponding standpipe (201), and the surface cover links up with steel wire (4) Upper end to being welded and fixed with protrusion (301) after the direction bending far from standpipe (201), surface cover hook steel wire (4) Be welded and fixed after lower end downward bending with corresponding standpipe (201), thus make surface cover hook steel wire (4) from bottom to top by It gradually tilts backwards until being flushed with protrusion (301).

2. the backrest frames of anti-surface cover deformation according to claim 1, it is characterised in that: the surface cover links up with steel wire (4) Vertical section and horizontal segment between the angle that is formed be obtuse angle.