JPH06280916A - Adjustable stop member - Google Patents

Abstract

PURPOSE: To facilitate position adjustment by constituting a stop member, for absorbing the shock of a movable element such as the door, etc., of an automobile, of a carrier member having a bore to be fixed to a vehicle body, etc., and a stopper member to be engagedly/disengagedly, lockably, and fittedly engaged with the bore. CONSTITUTION: A carrier member 11 having the bore 12 having a square cross section is fixed to an automotive body, etc., in a fitting flange 14, to insert the hollow shaft 17 of the member 16, composed of a hollow shaft 17 and a head part 18, into the member 11. At that time, a series of annular upheavals 19, formed on the outer side surface of the shaft 17, and a series of annular upheavals 13 formed on the bore 12 inner surface are engaged with each other, to decide the position of the shaft 17. A lock member 20 is arranged in the shaft 17, and is rotatably supported by engaging projections 23 on both the ends of the member 20 and a flange 24 in the bore 12 inner surface, and in rotating the member 20 about 90 deg., a part of the wall of the shaft 17 is diameter- expandedly deformed via a cam flange 21 to lock the engagement with the bore 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collision stop member used for absorbing the shock of a moving element such as a door.

[0002]

2. Description of the Related Art Such a stop member is provided, for example, in an automobile and is fixed to a vehicle body of the automobile to limit movement of doors of the automobile. Such stop members are preferably mounted on the vehicle body of an automobile and then adjusted to fit the proper position on the door of the automobile.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an adjustable stop member which can be easily adjusted and fixed in the correct position.

[0004]

SUMMARY OF THE INVENTION The present invention provides an adjustable stop member assembly which comprises a plastic carrier member, a stop member and a lock member.
The carrier member is configured to be secured to the substrate and has a bore perpendicular to the substrate, the inner surface of the bore having closely spaced series of circumferentially extending ridges. The stop member comprises a resilient hollow shaft, the hollow shaft having the same cross-section as the bore, the outer surface of the hollow shaft being formed and arranged to fit in the bore of the carrier member, said bore A series of circumferential ridges corresponding to the series of circumferential ridges in is formed at closely spaced intervals. A rotatable locking member is axially aligned within the hollow shaft. The locking member has at least two cam flanges that engage the inner wall of the hollow shaft to inflate the hollow shaft when the locking member is rotated, for example 90 °, to provide a series of circumferential ridges on the inner surface of the bore. And a series of circumferential ridges on the outer surface of the hollow shaft in a locking relationship with each other. The carrier member may have a base flange by which it may be screwed or bolted to the substrate or may be adhesively secured or engaged with a welding stud secured to the substrate.

The cross section of the bore and hollow shaft can be round or rectangular, but the cross section is preferably square.
The circumferential ridges on the inner surface of the bore and the outer surface of the hollow shaft are
It may be a series of annular ridges, or, if the shaft and bore are round in cross section, in the form of tightly engaging helical threads. A pair of cam flanges may be provided on the diametrically opposite sides of the locking member. Also, three or four cam flanges can be symmetrically arranged, preferably around the locking member. The locking member is provided with rotating means, for example a hexagonal hole or groove, so that it can be rotated using a tool such as a key or a screwdriver. The central axis of the locking member, the hollow axis of the carrier member and the central axis of the bore are aligned. The stop member is
A molded head may be provided on the hollow shaft, the head acting to abut an element (e.g. a motor vehicle door) to which the stop member is intended to mate.

[0006]

For a better understanding of the present invention, the preferred embodiments are described in greater detail by way of example with reference to the accompanying drawings. Referring to the figure, the carrier member 11 includes
A bore 12 of square cross section is formed, with a series of annular ridges 13 around the inner wall of the bore 12. The carrier member 11 has a mounting flange 14 with two holes 15 so that it can be mounted with screws or bolts to a substrate, such as the body of an automobile (not shown), for example inside a door frame. The stop member 16 is the hollow shaft 1
7 and a molded head 18. The outer surface of the hollow shaft 17 has a series of annular ridges 19 corresponding to the annular ridges 13 in the bore 12 of the carrier member 11.
In cross-section, the ridges 13 and 19 have a serrated appearance, and when the hollow shaft 17 is inserted into the bore 12, the ridges 13 and 19 engage to position the shaft 17 within the bore 12. Decide Due to the elasticity of the plastic material, the shaft 17 can be moved both axially within the bore 12 and with moderate force the ridges 13 and 19 can be disengaged.

The locking member 20 is disposed in the hollow shaft 17 by means of end projections 23 and is loosely mounted by a pair of spaced flanges 24 projecting inwardly within the shaft 17. The lock member 20 has a pair of cam flanges 21 protruding from opposite sides of the shaft 17, respectively. In the first assembly position (FIG. 2), the cam flange 21 is located in the wall of the hollow shaft 17. When the locking member is rotated 90 ° by means of an Allen key that engages with the hexagonal hole 22 (Figs. 4 and 5), the cam flange 21 deflects the wall of the hollow shaft to one side and projects the shaft outward, whereby the ridge 13
And the ridge 19 are in firm contact to prevent further axial movement of the shaft 17 in the bore 12 and the stop member 1
6 is firmly locked in the carrier member 11. A feature of the design of the stop member assembly according to the present invention is that stop member 16 and lock member 20 are simultaneously molded by a so-called single step injection molding process. The mold "die" is designed to produce burrs by the molding operation and without forming a web connecting the stop member 16 and the lock member 20. Once these are done, they must be removed. In use, the assembly shown in FIG. 2 is mounted by means of mounting flange 14 means to an open door frame, for example of the body of an automobile. Then the door 25 is closed and the stop member 1
6 is pushed into the bore 12 of the carrier member 11.
When the door is open, the locking member 20 is rotated by an Allen key inserted in the hexagonal hole 22 and the shaft 17 is locked in the bore 12 as described above, thus automatically adjusting the assembly. , Fixed at the exact height required for the impact stop member of the vehicle door 25. The stop member ensures that the door then always closes in the same position. The contour of the head 18 is chosen to match the shape of the door 25 at which the stop member assembly stops.

[Brief description of drawings]

FIG. 1 is an exploded cross-sectional view of three parts of an automobile impact stop member.

FIG. 2 shows the assembly of FIG.

FIG. 3 is a plan view of FIG.

4 shows the assembly of FIG. 2 when the assembly is secured.

5 is a plan / sectional view of the fixed assembly of FIG. 4 taken along line VV. (The head of the stop member is not shown for clarity).

[Explanation of symbols]

 11 ・ ・ Carrier member 12 ・ ・ Bore 13 ・ ・ Raised part 14 ・ ・ Flange 15 ・ ・ Hole 16 ・ ・ Stop member 17 ・ ・ Hollow shaft 18 ・ ・ Head 19 ・ ・ Head 20 ・ ・ Lock member 21 ・ ・Cam flange 22 ... Hexagonal hole 23 ... End projection 24 ... Flange 25 ... Door

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Harald Schetti Germany Day 6300 Wetzlar 17 Neuer Wake 4

Claims (12)

[Claims] 1. A plastic three-piece adjustable stop member assembly having a series of closely spaced bores on its inner surface at a right angle to the substrate. A carrier member for fixing to the substrate, and a hollow shaft having the same cross-section as the bore of the carrier member and adapted to fit into the bore, the outer surface of the hollow shaft having the bore. A series of circumferentially extending ridged portions corresponding to the ridges formed at close intervals, and a rotatable lock member arranged in the hollow shaft with its axis aligned, The member has a locking barrel provided with at least two cam flanges, the flange engaging the inner surface of the hollow shaft to inflate the hollow shaft when the barrel is rotated 90 °. Within the bore Stop member assembly, characterized in that the said series of circumferential ridges of said series of circumferential ridges of the surface and the outer surface of the hollow shaft adapted to the locking relationship. 2. The adjustable stop member of claim 1, wherein the carrier member has a base flange that is screwed or bolted to the substrate or fixed by an adhesive. 3. The adjustable stop member of claim 1, wherein the carrier member is adapted to engage a metal fitting, such as a weld stud, fixed to the substrate. 4. The bore of the carrier member and the hollow shaft of the stop member have a rectangular, preferably square, cross section.
Adjustable stop member according to paragraph. 5. Adjustable stop member according to any one of claims 1, 2 and 3, characterized in that the bore of the carrier member and the hollow shaft of the stop member have a circular cross section. 6. The method according to claim 1, wherein the series of circumferential ridges formed on the inner surface of the bore and the outer surface of the hollow shaft are a series of annular ridges. The adjustable stop member of paragraph 1. 7. The adjustable stop of claim 5, wherein the series of circumferential ridges formed on the inner surface of the bore and the outer surface of the hollow shaft are helical threads that are in tight engagement. Element. 8. The adjustable stop member according to claim 1, wherein a pair of cam flanges are provided on diametrically opposite sides of the locking member. 9. Adjustable stop element according to any one of the preceding claims, characterized in that three or four cam lobes are preferably symmetrically arranged around the locking element. 10. Adjustable stop member according to any one of the preceding claims, characterized in that the hollow shaft has a molded head. 11. The stop member and the lock member,
Adjustable stop member according to any one of the preceding claims, characterized in that it is molded simultaneously by a single-step injection molding method. 12. The adjustment according to claim 11, wherein the forming operation is carried out without forming a flash which has to be subsequently removed and a web connecting the stop member and the locking member. Possible stop member.