CN1100683C

CN1100683C - Bench for vehicle with tilting back rest

Info

Publication number: CN1100683C
Application number: CN97182408A
Authority: CN
Inventors: P·布莱谢
Original assignee: TWB PRESSWERK GmbH
Current assignee: TWB PRESSWERK GmbH
Priority date: 1997-10-15
Filing date: 1997-10-15
Publication date: 2003-02-05
Anticipated expiration: 2017-10-15
Also published as: CN1275948A

Abstract

The present invention relates to a long chair which is used for vehicles and is provided with a back support which can be turned and is divided into two parts. In the present invention, at least one part of the back support is provided with at least two shaping parts (1) and (2) which are mutually welded; at least one of the shaping parts is provided with rolled edges (11) and (21).

Description

The automobile-used bench seat that has turning backrest

The present invention relates to a kind of automobile-used bench seat that has turning backrest, wherein the backrest separated into two parts.

Bench seat is contained on the back seat in automobile.Usually can sit three people.The backrest of bench seat plays two effects herein: supporting occupant's back when the passenger leans against on the backrest in the process of moving on the one hand; It separates passenger accommodation and boot compartment on the other hand.In order to increase the transportation volume of automobile, the backrest of bench seat is turning installation in automobile.In addition it is separated in order to improve accommodation.Here two of backrest parts only are supported on auto body or the car chassis at three some places.

The passive satety that is sitting in the outer passenger of bench seat guarantees by 3 safety strap.The passenger who is positioned at the bench seat middle part guarantees that by pelvic girdle safety is not too enough at present.In order to improve passive satety, in modern automobile, also adopt 3 safety strap for the passenger who is sitting in the middle part of the back seat.In order also to guarantee the turning property of backrest in this case, the retractor of 3 middle safety strap must be fixed on the backrest.When having an accident, because automobile slows down suddenly, the passenger can sharply quicken.3 safety strap opposing passengers' this acceleration and the thing followed be to preshoot, thereby be subjected to very big power on the safety strap, and this power passes to backrest by retractor.Certain a bit supports inefficacy and can cause fractureing of backrest on vehicle body or car chassis for this power and backrest.Therefore increased the risk of injury of passenger in accident that is sitting on the bench seat.

In order to improve the stability of backrest, be known that on backrest, to have a supporting structure.Adopted two section bars that are welded to each other together in undivided turnover backrest, wherein at least one section bar has tube-like piece, to improve the intensity (referring to GB-A-22 298 123) of backrest.In the bench seat of described type, adopt a continuous plate for being divided into two-part turnover backrest, this plate is provided with the reinforced rib (referring to US-A-4493505) of lengthwise.In another backrest of described type, except the basin shape rear wall of reinforcing, the end of on, also adopted crimping (referring to DE-U-295 14752).Although shape is provided with the stability that a supporting structure has improved backrest.But increased the weight of backrest owing to adding the material that uses, this will cause whole car mass to increase, thereby increase consumption of fuel.

Here the present invention will propose remedial measure.Therefore task of the present invention provides a kind of turnover backrest, and this backrest does not use additional supporting structure but has very high stability, very economical in the mill.This task is to solve like this according to the present invention, at least one part of backrest has at least two moulding sections that are welded to each other, at least one has crimping in these two moulding sections, this crimping is superimposed installation up and down in pairs, wherein, profiled part connects by moulding section back phase region between crimping.

The invention provides a kind of backrest, it has very high bending stiffness owing to crimping forms tubulose inclosure thing.So its temperature and the supporting structure that need not add make weight keep lighter thus.Therefore reduce whole car mass, avoided consumption of fuel.Productive costs is lower in addition.

Paired superimposed installation up and down by crimping makes moulding section be bordering on unanimity, and this has additionally reduced cost.In addition because the approaching circle of the inclosure thing that crimping forms has additionally improved bending stiffness.

In a kind of scheme of the present invention, moulding section is made blanked part by metal sheet.Make the production of backrest can be not high thus in expense aspect the production technology, individual character not too strong (nichtpersonalintensive) thereby both economical.

In a kind of favourable scheme of the present invention, bubbled by cavity to the small part that crimping forms.Increased the stability of backrest in addition by bubbling.

Advantageously, foaming material is aluminium or solid foam.These materials are very light on the one hand, thereby make the increase of backrest weight very little; The shape of itself and cavity is mated very much on the other hand.

Advantageously, moulding section is welded to each other by roll welding or laser welding.Welding by this pattern has obviously improved stability in addition, because avoided occurring splitting in the commissure, for example resembles the slide fastener phenomenon that occurs when spot welding.

In another kind of scheme of the present invention, one trim groove is arranged at the periphery of moulding section.This trim groove is used for fixing the material sleeve of clogging back seat.

In another program, at least one moulding section bearing is arranged.This bearing is used for fixing safety accessory or traveling comfort accessory.

Accompanying drawing has provided embodiments of the invention, describes in detail below.

Fig. 1 is the view of a part of backrest;

Fig. 2 is the section drawing along the transversal A-A of Fig. 1;

Fig. 3 is the section drawing along the transversal B-B of Fig. 1;

Fig. 4 is the section drawing along the transversal C-C of Fig. 1;

Fig. 5 is the section drawing along the transversal H-H of Fig. 1;

Fig. 6 is the section drawing along the transversal L-L of Fig. 1;

Fig. 7 is the section drawing along the transversal Z-Z of Fig. 1.

Chosen the part that constitutes bench backrest 2/3 among the embodiment, it 1/3 to 2/3 separates in proportion asymmetricly.Its shape is rectangular in shape substantially, wherein in the side that deviates from the backrest line of centers one vacancy is arranged.This vacancy back in backrest is packed vehicle seat into provides wheel cover for each automobile hind axle.

Back part is made up of two moulding sections that are welded to each other 1,2.At the confined state of backrest, have a rocker bar bearing 3 towards the moulding section 2 of car chassis in its end towards car chassis, this bearing makes the upset of backrest become possibility.Bearing 3 towards the part that constitutes backrest 1/3 has been adorned a bolt 31, and two parts by this bolt backrest are connected with each other.The bearing 3 of other parts has a bolt 32 dorsad.This

bolt

31 and 32 is in adjusting to a line and installs.Its longitudinal centerline is the rotating shaft of turnover backrest.

At the protrusion that is used for having above the vacancy of roller box, a bearing 4 that is used for anchoring device is arranged on the moulding section 2, it is used for the removable fixing of backrest and vehicle body or automobile.The moulding section 2 of backrest has a bearing 5 in addition, can be fixed on the backrest by headrest.Headrest can be inserted in the bearing 5 with the bar on it 6.Bearing 5 is welded on the moulding section 2.On the part that constitutes backrest 2/3, two headrests are arranged; On the part that constitutes backrest 1/3, a headrest is arranged then.

Two kinds of two headrests are being inserted between the possibilities, a retractor 7 is being housed in the end of the moulding section 2 of car chassis dorsad.This retractor 7 belongs to unshowned 3 safety strap, and these 3 safety strap are used to be sitting in the passenger at back seat middle part.Its effect is on the one hand stoping it by the people of safety strap protection automatically during rapidly to preshoot, rolls safety strap on the other hand when the passenger unties latch closure automatically.On this external backrest the bearing that for example is used for band button or turning handrail is arranged.A charging jack with tipping platform also can be arranged on backrest.

One trim groove 8 is arranged on the periphery of moulding section 1.This trim groove is used to accommodate the material sleeve that is layered on the backrest filling face.Here the face of filling is by the manufacturing of PU foam and constitute the filling side of backrest.This trim groove 8 is made of the water blocking tape that has the C-cross section (Kederband).

Moulding section 1,2 is preferably as having crimping 11,21, its superimposed installation up and down among the embodiment.But also can have only moulding section 1 to have crimping 11 or have only moulding section 2 to have crimping 21, make have weld on the moulding section on basic plane another or other have a moulding section of crimping.By this welding, between moulding section, produce the cavity of tubulose with moulding section of crimping.The cross-sectional plane of this cavity is quadrangle in an embodiment substantially.But this cross-sectional plane is not limited to this shape; But also can be circular, semicircle, oval or other polygon cavity cross sections.

The cavity that forms by crimping 11,21 between moulding section 1,2 can bubble partially or entirely.Material can use lighter material, as aluminium or solid foam.Here employed material must mate with the shape of cavity after foaming well.

Crimping 11,21 is helix shape basically.Except this form can also be arranged to crimping level, vertical, the diagonal angle, concentric circles or ellipse or similar type.Adopt these forms can obtain same high backrest stability.

The crimping 11 of adjacent respectively moulding section 1 and the crimping 21 of moulding section 2 are by the moulding back 22 of the moulding back 12 of moulding section 1 and moulding section 2 and interconnect.Interconnect by moulding back 12,22 moulding sections 1,2.They interconnect along moulding back 12,22.This welding is preferably finished by roll welding or laser welding, because can improve the intensity of backrest like this.

Claims

1. have the automobile-used bench seat of turning backrest, its separated into two parts is characterized in that, at least backrest part has at least two moulding sections that are welded to each other (1,2), and wherein at least one in the moulding section is provided with crimping (11,21), this crimping (11,21) is superimposed installation up and down in pairs, wherein, moulding section (1,2) between crimping (11,21), interconnect by moulding section back (12,22).

2. bench seat as claimed in claim 1 is characterized in that, the cavity that is formed by crimping (11,21) bubbles at least in part.

3. bench seat as claimed in claim 2 is characterized in that, foaming material is aluminium or solid foam.

4. as the described bench seat of one of claim 1 to 3, it is characterized in that moulding section (1,2) is made blanked part.

5. as the described bench seat of one of claim 1 to 4, it is characterized in that moulding section (1,2) is welded to each other together by roll welding or laser welding.

6. as the described bench seat of one of claim 1 to 5, it is characterized in that welding is finished along moulding section (12,22).

7. as the described bench seat of one of claim 1 to 6, it is characterized in that, be provided with a trim groove (8) at the periphery of moulding section.

8. as the described bench seat of one of claim 1 to 7, it is characterized in that moulding section has bearing on (2).