CN102085844A

CN102085844A - Fixing device for safety belt fittings

Info

Publication number: CN102085844A
Application number: CN201010585441.4A
Authority: CN
Inventors: W·埃芬贝格
Original assignee: Volkswagen AG
Current assignee: Volkswagen AG
Priority date: 2009-12-05
Filing date: 2010-12-03
Publication date: 2011-06-08
Also published as: DE102009057178A1; DE102009057178B4

Abstract

The invention relates to a fixing device for motor vehicle safety belt fittings, especially for combined double belt fittings fixed on rear long chair of a motor vehicle. The fixing device fixes belt fittings onto an anchor wall, especially onto a base plate, by a bolt penetrating through the anchor wall, especially onto the base plate, of a motor vehicle and having a bolt head and a screw rod, and a nut screwed on the screw rod from the belt fittings side. According to the invention, a head (8) of the bolt (2) is welded onto the anchor wall (1) of a motor vehicle.

Description

The anchor fitting that is used for the band accessory of safety strap

Technical field

The present invention relates to a kind of anchor fitting of band accessory (Gurtbeschlag) of the safety strap that is used for self-propelled vehicle of the preamble according to claim 1.

Background technology

File DE 4339358A1 has described such anchor fitting, in this document, by means of bolt that passes (durchdringen) base plate and the base plate that is fixed on self-propelled vehicle from the simple band accessory that the nut of tightening will be used for safety strap.At this, this bolt additionally passes from being arranged in the brace panel of base plate down, and this bolt utilizes its less relatively head support at the brace panel place.

Summary of the invention

Purpose of the present invention is, proposes a kind of anchor fitting that is used for the band accessory of safety strap, and at failure-free and bear under the situation of structure of high tension moment of torsion (Zugmoment), this anchor fitting is configured to simpler and is more suitable for assembling.

According to the present invention, this purpose utilizes the feature of claim 1 to realize.Favourable and especially suitable improvement project of the present invention is the object of dependent claims.

The suggestion according to the present invention, by head with the grappling wall (Verankerungswand) (especially base plate) of bolt and self-propelled vehicle weld together directly indirectly or preferably.The welding of bolt head can realize in the body in white of self-propelled vehicle processing (Rohbaufertigung), and afterwards by only should extremely simply being assembled into possibility with being with accessory be set on the bolt and utilizing nut to fix to make.This biobelt accessory for the back seat place of self-propelled vehicle (two safety strap are bound up on this biobelt accessory place) is especially favourable, because in this faster and simpler assembling owing to more inaccessibility anchor fitting provides.

The especially preferred design plan of idea according to the present invention, be arranged at this, the head of bolt its in the zone of the bearing surface at grappling wall place, have edge side at least partly or segment section ground (abschnittsweise) around rank shape portion or groove, this rank shape portion or groove are constructed weld groove (Schwei β nut) between bearing surface and grappling wall in the confined state of bolt, and scolder can infiltrate (eindringen) in this weld groove when applying weld seam.Be welded to connect by means of such, guaranteed especially stable and reliable in function ground with bolt head and whole thus bolted connection at grappling wall place, do not damage being posted by connecting in the mode of face of bolt head or rather basically by means of the bearing surface of bolt head at grappling wall place.

At this, such bolt head design plan is especially favourable, promptly, in this design plan, bearing surface with respect to the sectional area bolt head of thread rod (Gewindebolzen) is very big, so that the bigger bearing surface of the head by bolt guarantees failure-free, bears the fixing of high tension moment of torsion.In particular, the bearing surface of the head of bolt can be at least five times of sectional area of thread rod, thus as might can fully phase out at grappling wall or the brace panel that adds below the base plate.

Especially aptly, the head of bolt can be designed to rotational symmetric dish aspect process technology, and preferably, its diameter is at least three times of diameter of thread rod, to be used to construct the large-area head support face that has advantage mentioned above.

At last, it is auxiliary as being used to screwing on of nut to be tightened that bolt can have the jut that reduces at its free end place on diameter

Utilize this simple measure, can realize that under the situation of accessible anchor fitting not another assembling simplifies.

Another especially preferred design plan of idea according to the present invention, in the zone of thread rod, can construct at least one slot scraping (Schabenut), wherein, be arranged in particular, structure is a plurality of at the slot scraping spaced apart and that stretch on thread rod is vertical that makes progress in thread rod week in the zone of thread rod.Utilize such slot scraping, combining has guaranteed in threaded portion with the coating that is applied (for example KTL coating and lacquer coating) in particular, and respective threads is struck off (freischaben) and is not damaged in its function aspects.

Description of drawings

Further explain embodiments of the invention below with reference to the accompanying drawings.Wherein:

Fig. 1 has shown the biobelt accessory of two safety strap that are used for self-propelled vehicle with three-dimensional diagrammatic sketch, and it has anchor fitting, and this anchor fitting has the screw bolt and nut that is welded on the base plate place;

Fig. 2 has shown the section drawing of the amplification of the anchor fitting in the zone of base plate,

Fig. 3 has shown the bolt as single-piece anchor fitting according to Fig. 1 and 2, and

Fig. 4 has schematically shown the alternative form of implementation of the bolt of the anchor fitting that has slot scraping, and

Fig. 5 has schematically shown along the cross section of the line A-A of Fig. 4.

List of reference characters

1 base plate

2 bolts

3 nuts

4 band accessories

4a fixed mount (Halteb ü gel)

The section of 4b bending

5 band accessories

The 5a fixed mount

The section of 5b bending

6 is with lock

7 dead bolts

The head of 8 bolts

The 8a bearing surface

9 thread rods

10 juts

11 rank shape portions

12 weld grooves

13 weld seams

14 slot scrapings

The specific embodiment

The section of the base plate 1 of self-propelled vehicle has been shown in Fig. 1 and 2, by will be herein as the bolt 2 of anchor fitting and nut 3 for example two band accessories 4 and 5 be fixed on base plate 1 place.

Band accessory 4,5 is loaded with protrude upward with lock 6 respectively, and the dead bolt 7 of safety strap not shown further can be locked this in lock 6.

Band accessory 4,5 located adjacent one another has fixed mount 4a and the 5a that stretches out downwards, this

fixed mount

4a, 5a its bending, be parallel to the section 4b that base plate 1 stretches, have the hole (invisible) of alignment among the 5b, bolt 2 stretches by this hole.

That the bolt 2 that is formed from steel has is rotational symmetric, dish-shaped head 8 and the thread rod 9 that has 7/16 inch screw thread.

Be molded with the littler jut of diameter 10 at the free end place of thread rod 9, it is auxiliary that these jut 10 usefulness act on screwing on of nut to be tightened 3.

As especially can be from finding out Fig. 2 and 3, in the zone of the bearing surface 8a of head 8, the head 8 of bolt 2 have at grappling wall 1 place edge side around rank shape portion 11, at this, this rank shape portion 11 only is configured to example corner angle or seamed edge is arranged, however the recess that equally well can be by radially or the rake structure rank shape portion 11 of ramp-like.This rank shape portion 11 causes, in the state of the assembling of bolt 2, between head 8 and grappling wall 1, be configured with edge side around weld groove 12, when applying weld seam 13 or solder joint, scolder can infiltrate in this weld groove 12 to be used for better engaging from the below grappling of (untergreifend).Figure 2 illustrates around weld seam 13.Will be understood that, obviously weld seam 13 only also be embodied as segment section ground around, or equally can be only by independent solder joint configuration weld seam 13.

Be at least five times of sectional area of thread rod 9 from the bearing surface 8a of the dish-shaped head 8 that abuts in base plate 1 down and for example be fixedly connected with this base plate 1 by welding, or on diameter, compare, be at least three times of diameter of thread rod 9.

Assembling band accessory 4,5 o'clock, will be with accessory 4,5 to be enclosed within on the thread rod 9 that protrudes upward from base plate 1 of bolt 2 by the hole of alignment.Afterwards, at first with nut 3 through on the jut 10, and then nut 3 is tightened on the thread rod 9 of bolt 2, and clamping band accessory 4,5 thus.

At last, shown the alternative design plan of bolt 2 in Fig. 4, this design plan has and the identical structure of bolt that shows in Fig. 1 to 3 basically.Different with the bolt design scheme that shows in Fig. 1 to 3 is, the bolt 2 that shows in Fig. 4 has such thread rod 9, promptly, this thread rod 9 have a plurality of at this for example with the slot scraping 14 of 90 ° of dislocation, this slot scraping 14 almost extends on the thread rod length at half respectively on vertically at thread rod, observes from the end of the jut side of thread rod 9 or rather.Shown that in Fig. 5 along the cross section of the line A-A of Fig. 4, it has shown the groove profile of the basin shape of slot scraping.Thus, when screwing bolt 2, utilize in these slot scraping 14 component composition things (Bauteilverbund) that in Fig. 1, show or that in Fig. 2, show equally and guarantee, can scrape off and strike off coating, can transport these coating by slot scraping equally in particular as might in threaded portion, existing.

Claims

The band accessory of a safety strap that is used for self-propelled vehicle, be particularly useful for anchor fitting at the biobelt accessory of the combination at bench seat place, back, in described anchor fitting, tighten to nut on the described thread rod by means of the bolt grappling wall that passes self-propelled vehicle especially base plate, that have bolt head and thread rod with in the accessory side, described band accessory is remained on grappling wall place especially remain on the base plate place, it is characterized in that described bolt (2) welds with the described grappling wall (1) of self-propelled vehicle mutually by head (8).
2. anchor fitting according to claim 1, it is characterized in that, described head (8) its in the zone of the bearing surface (8a) that described grappling wall (1) is located, have edge side at least partly or segment section ground around rank shape portion (11) or groove, in the confined state of described bolt (2), described rank shape portions (11) or groove are constructed weld groove (12) between described head (8) and described grappling wall (1), scolder can penetrate in the described weld groove (12) when applying weld seam (13) or solder joint.
3. anchor fitting according to claim 1 and 2 is characterized in that, the bearing surface (8a) of the head (8) of described bolt (2) is at least five times of sectional area of described thread rod (9).
4. according to each described anchor fitting in the claim 1 to 3, it is characterized in that the head (8) of described bolt (2) is designed to rotational symmetric dish.
5. anchor fitting according to claim 4 is characterized in that, the diameter of described dish-shaped head (8) is at least three times of diameter of described thread rod (9).
6. according to each described anchor fitting in the aforementioned claim, it is characterized in that described bolt (2) has the conduct that the reduces auxiliary jut (10) of screwing at its free end place on diameter.
7. according to each described anchor fitting in the claim 1 to 6, it is characterized in that, in the zone of described thread rod (9), be configured with at least one slot scraping (14), in particular, be provided with a plurality of at the slot scraping (14) spaced apart and that on thread rod is vertical, stretch that makes progress in thread rod week.