CN204750267U - Steering device - Google Patents

Abstract

The utility model relates to a steering device has: friction plate (24b) of together being fastened through fastening device with clamp part (10) and automobile body side bracket (6) and inlay outward including on tubular column (3) to circular member (20) of the aluminum alloy system that combines with friction plate (24b), circular member (20) and interior tubular column (3) are near the joint portion of friction plate (24b) and circular member (20), be equipped with and make through hole (the 20a who runs through with circular member (20) and interior tubular column (3), 3a), and through inserting to through hole (20a, 3a), round pin (21) in and combine together, then, again through the quilt is destroyed when having certain impact power back at round pin (21), thereby remove the combination between circular member (20) and interior tubular column (3), can obtain more stably from this, and the lower load that breaks away from.

Description

Steering hardware

Technical field

The utility model relates to a kind of using the vehicle front side part of steering hardware as centre of gration, its steering hardware of above-below direction position of adjustable bearing circle.

Background technology

In the past, in the mechanism of steering hardware, having when colliding with bearing circle because of collision case etc. at chaufeur, by making bearing circle to vehicle front displacement, relaxing the impulsive force suffered by chaufeur, thus alleviating the structure of the injury of chaufeur.Such as, a kind of steering hardware with fixing device as disclosed in Patent Document 1, this fixing device uses friction plate to be clamped in securely in vehicle-body attachment bracket by steering column, and when impact load create exceed regulation above impulsive force time, a part for its friction plate will deform, and then removes the fixing of friction plate.

Patent documentation 1: Japanese Unexamined Patent Publication 2007-069800 publication

Utility model content

But, when being configured to be restricted the movement of steering column respectively in the left and right sides of steering column, if do not accomplish well during fabrication, the power at left and right sides usable uniform carrys out the words of moving-limiting, the load that then can cause steering column is departed from from stationary state, namely to depart from load different from each other in the left and right sides of steering column, steering column there will be torsion, thus worries that departing from load uprises a little and stably cannot obtain intentional disengaging load.

The utility model provides a kind of steering hardware 1, and it has: the steering shaft 2 transmitting steering-wheel effort; Rotatably support the interior tubing string 3 of described steering shaft 2; Rotatably support the outer tubing string 5 of described steering shaft 2, its can move axially relatively chimeric with described Steering gear inner member 3, and have clamping section 10 fastening for described interior tubing string 3; Clamp described clamping section 10 and to the fixing body side bracket 6 of vehicle body; And fastening device, its according to the operation of user by described body side bracket 6 and described clamping section 10 fastening, thus described interior tubing string 3 and described outer tubing string 5 are fixed, and can the direction of tilt of travel direction dish and the adjustment of telescopic direction by carrying out it to remove, the feature of described steering hardware 1 is to have:

With described clamping section and the described body side bracket together fastened friction plate 24b by described fastening device; With

Be embedded in outward on described interior tubing string 3, and the circle ring part 20 of the aluminum alloy be combined with described friction plate 24b,

Described circle ring part 20 and described interior tubing string 3 are near the joint portion of described friction plate 24b and described circle ring part 20, be provided with the through hole 20a described circle ring part and described interior tubing string being done to run through, and combined by the pin 21 be inserted in this through hole 20a

Destroyed by after the impulsive force that specified when described pin 21, thus removed the combination of described circle ring part 20 and described interior tubing string 3.

Thereby, it is possible to obtain more stable and lower disengaging load.

Accompanying drawing explanation

Fig. 1 is the block diagram representing steering hardware of the present utility model.

Fig. 2 is the enlarged drawing of circle ring part.

Fig. 3 is for the diagram that interior tubing string and circle ring part engage is described, represents the cross section of circle ring part at Width central part place.

Description of reference numerals

1 steering hardware

2 steering shafts

Tubing string in 3

3a through hole

5 outer tubing strings

6 body side brackets

8 strengthening parts

10 clamping sections

20 circle ring parts

20a through hole

21 pins

23 inboard friction plate

24a, 24b outboard friction plate

Detailed description of the invention

Fig. 1 is the block diagram of the steering hardware 1 representing the utility model the 1st embodiment.When watching the Reference numeral of Fig. 1 from common reading direction, its facing to lower left side of Fig. 1 be by steering hardware 1 mounting vehicle time, for the side of rear view of vehicle side, and being when being installed on vehicle by steering hardware 1 facing to the upper right side of Fig. 1, is the side of vehicle front side.In FIG, about its hand of rotation centered by the central axis of steering hardware 1 towards, be then with by steering hardware 1, the state be mounted on vehicle is consistent.

As shown in FIG. 1 to 3, steering hardware 1 of the present utility model has: the steering shaft 2 transmitting steering-wheel effort; Tubing string 3 in rotatably supporting described steering shaft 2; Can rotatably to the outer tubing string 5 that described steering shaft 2 supports, itself and described interior tubing string 3, vertically, can be fitted together to relatively movably, and are provided with and described interior tubing string 3 can be done fastening clamping section 10; With the body side bracket 6 that it fixes by the described clamping section 10 of clamping on vehicle body; And fastening device, it is according to the operation of user, described body side bracket 6 and described clamping section 10 are carried out fastening, fix described interior tubing string 3 and described outer tubing string 5 thus, and by carrying out the operation removed it, can implement the adjustment of bearing circle on its direction of tilt and telescopic direction.

Described steering hardware 1 also has: with described clamping section 10 and the described body side bracket 6 together fastened friction plate 24b by described fastening device; Be embedded in outward on described interior tubing string 3, and the circle ring part 20 of the aluminum alloy be combined with described friction plate 24b.

Described circle ring part 20 and described interior tubing string 3 are near the joint portion of described friction plate 24b and described circle ring part 20, be provided with the through hole 20a described circle ring part and described interior tubing string being done to run through, and combined by the pin 21 be inserted in this through hole 20a, destroyed by after the impulsive force that specified when described pin 21, thus removed the combination of described circle ring part 20 and described interior tubing string 3.

And interior tubing string 3 does not carry out fastening by means of only the described clamping section on tubing string 5 outside, it is fixing that the circle ring part 20 also by being kept by inboard friction plate 23 and outboard friction plate 24a, 24b is implemented, thus firmly fixed.

According to steering hardware 1, usually will as described above, in it, tubing string is firmly fixed, but when a vehicle is in a collision, even if having when the passenger generation secondary collision that body weight is lighter, also can with stable, and lower impact load absorbs this impact.That is, interior tubing string 3 can not be made due to circle ring part 20 and outboard friction plate 24a, 24b to produce reverse, and shorten the total length of steering hardware 1, and then pin 21 is ruptured and disengaging occurs absorbs its impulsive force further.

In addition, according to the steering hardware 1 of the 1st embodiment, because pin 21 is arranged in circle ring part 20, near the bound fraction of strengthening part 8, so just can prevent when secondary collision, it produces moment of flexure on circle ring part 20, and can prevent the increase of the disengaging load caused because of moment of flexure.

In addition, according to the steering hardware 1 of the 1st embodiment, inboard friction plate 23 and outboard friction plate 24a, 24b will be integrally constituted by circle ring part 20, therefore, just can prevent the fastening force based on friction from occurring different phenomenons in left and right, thus prevent when secondary collision, make disengaging load raise because of the torsion of steering column.

In addition, according to the steering hardware 1 of the 1st embodiment, even if can realize a kind of after the impact absorbing secondary collision, steering column is also unlikely to the steering come off.

In addition, according to the steering hardware 1 of the 1st embodiment, interior tubing string 3 firmly fixes by strengthening part 8, and it can improve the antivibration rigidity of steering column, and can guarantee steering stability.

And, the circle ring part 20 of present embodiment be by die casting by its one-shot forming after, then secondary processing carried out to defined position make.Again because of, it is that aluminum alloy is made, so have the lightweight and feature of good rigidly.Therefore, it is possible to effectively improve when when absorbing impact, discordant situation that interior tubing string 3 produces.In addition, also outer tubing string 5 can be manufactured by aluminium diecasting alloy.

Claims (1)

1. a steering hardware (1), it has:

Transmit the steering shaft (2) of steering-wheel effort;

Can rotatably to the interior tubing string (3) that described steering shaft (2) supports;

Can rotatably to the outer tubing string (5) that described steering shaft (2) supports, itself and described interior tubing string (3) are vertically, can be fitted together to relatively movably, and be provided with and described interior tubing string (3) can be done fastening clamping section (10);

With the body side bracket (6) that it fixes by the described clamping section of clamping (10) on vehicle body;

And fastening device, it is according to the operation of user, described body side bracket (6) and described clamping section (10) are carried out fastening, fix described interior tubing string (3) and described outer tubing string (5) thus, and by carrying out the operation removed it, can implement the adjustment of bearing circle on its direction of tilt and telescopic direction, and it is characterized in that having:

With described clamping section and described body side bracket together, the fastened friction plate (24b) by described fastening device; With

Be embedded in outward on described interior tubing string (3), and the circle ring part (20) of the aluminum alloy combined with described friction plate (24b),

Described circle ring part (20) and described interior tubing string (3) are near the joint portion of described friction plate (24b) and described circle ring part (20), be provided with the through hole (20a) described circle ring part and described interior tubing string being done to run through, and combined by the pin (21) be inserted in this through hole (20a)

By the destruction of suffering after having certain impact power at described pin (21), thus remove the combination of described circle ring part (20) and described interior tubing string (3).