JP2003114172A - Fixation auxiliary implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixation auxiliary implement by which a vehicle is restrained easily and stably on a chassis dynamometer. SOLUTION: A nut 23 with an external thread is screwed to a hub bolt 20 used to attach a steel wheel 29, a rotating body 12 which is attached to its external thread part 23a via a nut 24 is installed, a fixed shaft 13 is installed at the rotating body 12 so as to be freely rotatable, and an eyenut 16 is attached to the fixed shaft 13 so as to form a nonrotating body 28. In this manner, a part of the eyenut 16 in the fixation auxiliary implement 11 attached to the steel wheel 29 is fixed to a floor surface by a wire or the like.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a fixing aid,
It is suitable for use in restraining a vehicle in a chassis dynamometer.

[0002]

2. Description of the Related Art Exhaust gas characteristics, fuel consumption characteristics of automobiles,
There is a chassis dynamometer that enables tests such as maneuverability and stability at high speeds to be performed indoors without driving a car on an actual road.

In order to improve the reproducibility, the chassis dynamometer is not limited to a four-wheel drive vehicle, and a front wheel drive vehicle and a rear wheel drive vehicle have a configuration in which all four wheels are placed on rollers and rotated. When such a chassis dynamometer is used, it is necessary to restrain the vehicle from moving in the front-rear direction, and the wire rope 7 is used as shown in FIG.

As shown in the figure, rollers 1 and 2 are rotatably supported below the floor surface via bearings 3 and 4, and the rollers 1 and 2 are connected to an absorber via a gearbox and flywheel (not shown). The load device is configured. Wheels 6 in front of and behind the vehicle 5 are placed on the rollers 1 and 2, and a wire rope 7 stretched between the vehicle 5 and the floor surface restrains the vehicle 5 from moving back and forth and left and right.

[0005]

However, in a general vehicle, there is no engaging portion for hooking wires other than the transport hooks on the front and rear, so that the lashing belt or the like is hooked on the bumper or other portions. There is no equivalent of a transport hook for a 4WD buggy car. From the above, it is often difficult to fix the vehicle, and the restraint of the vehicle tends to be unstable.

[0006] Therefore, an object of the present invention is to provide a fixing auxiliary tool which solves the above problems.

[0007]

The structure of a fixing aid according to claim 1 for achieving the above object is a rotating body which is detachably attached to a wheel of a vehicle and rotates integrally with the wheel. The non-rotating body which is provided on the rotating body so as to be rotatable about the axis of the rotating body and which has an engaging portion for connecting the ends of the cord-like members. The structure of the fixing aid according to claim 1 is characterized in that, in claim 1, an insertion hole is provided in the rotating body, and the position of the insertion hole is the same as the position of the insertion hole of the wheel. According to a second aspect of the present invention, the fixing aid is configured such that a hub nut inserted into the insertion hole of the wheel is screwed with a nut having a screw, and the male screw portion of the male screw nut is inserted into the insertion hole of the rotating body. , The nut on the male thread Screwed in, characterized in that to attach the wheel.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a fixing aid according to the present invention will be described below.

According to the present invention, the rotating wheel portion is
The wheel is fixed to the floor with a wire or the like while allowing the wheel to rotate.

Fix both ends of the axle of the vehicle to the floor,
Also, a fixing aid is provided to allow rotation of the portion of the wheel. The structure of the fixing aid is shown in FIG.

As shown in the figure, the fixing aid 11 is a rotating body 12 that rotates with the wheel, and a non-rotating body 28 that is fixed in a three-dimensional space and that rotates relative to the wheel.
Composed of and. The rotating body 12 is formed by integrally forming a flange portion 12a and a cylindrical portion 12b. Flange part 1
Ribs 12c are provided at four locations in the circumferential direction in order to strengthen the connection between 2a and the cylindrical portion 12b. Cylindrical part 1
Inside 2b, thrust bearing 14 and journal bearing 1
5, a fixed shaft 13 is rotatably provided.
In order to prevent the fixed shaft 13 from coming out to the left, the closing plate 2
6 is attached to the left side surface of the flange portion 12a via a bolt 27.

A male screw portion 13a is formed on the outer end portion of the fixed shaft 13, and the male screw portion 13a has a through hole 1 orthogonal to the axial center.
3b is formed. A female thread portion 16a of an eye nut (engagement portion) 16 is screwed into the male thread portion 13a to form a non-rotating body 28. The eye nut 16 is formed with a through hole 16b that is orthogonal to the axis, and the through holes 16b and 13b are formed.
The eye nut 16 is prevented from rotating by inserting a pin into and bending the pin.

A fixing aid 11 is attached to the flange 12a.
Is processed to attach to the part of the wheel. That is, four insertion holes 17 for attaching the flange portion 12a to the steel wheel 29 are formed in the circumferential direction, and four insertion holes 18 for attaching the flange portion 12a to the aluminum wheel 22 are formed in the circumferential direction. There is.

Next, the operation of the fixing aid will be described.
Four wheel hub bolts 20 for steel wheels or hub bolts 21 for aluminum wheels are fixed to the wheel hub 19 that is rotationally driven by the engine or the free wheel hub 19 that is not rotationally driven. To attach the steel wheel 29 to the wheel hub 19, the four hub bolts 20 are inserted into the insertion holes 17, and the hub nut 20 is screwed into the hub bolt 20. Once the steel wheel 29 is installed, the nut with male thread 2
Insert the male screw portion 23a of No. 3 into the insertion holes 17,
The nut 24 is screwed into the external thread 23a. This allows
The fixing aid 11 is attached to the steel wheel 29.

In the case of a vehicle using an aluminum wheel instead of the steel wheel, the hub bolt 21 and the insertion hole 18 are arranged on the circumference of a circle having a small diameter.

When the fixing aids 11 are attached to the four steel wheels 29 as described above, the fixing aids 25 and the fixing aids 11 which are previously coupled to the floor surface are connected via the wires 30 as shown in FIG. Then, the vehicle 5 is restrained. After that, a running test of the vehicle 5 is performed.

By forming the insertion holes corresponding to the insertion holes of various wheels in the flange portion, the vehicle can be restrained via the fixing aid 11 regardless of the vehicle type.

The cord-shaped member is not limited to a wire, but a chain or the like may be used.

[0019]

As is apparent from the above description, claim 1
According to the fixing aid according to any one of claims 1 to 3, the rotating body is connected to the wheel of the tire and the non-rotating body is rotatable with respect to the rotating body. By connecting the body to the floor with a cord-shaped member,
It is possible to reliably restrain the wheel portion of the vehicle. Therefore, not only the work for restraining the vehicle is easy, but also the restrained state is stable.

[Brief description of drawings]

1 relates to an embodiment of a fixing aid according to the present invention,
(A) is a front sectional view, (b) is a right side view.

FIG. 2 is an operation explanatory view in the embodiment of the fixing aid according to the present invention.

FIG. 3 relates to an explanatory view showing a restrained state of a conventional vehicle in a chassis dynamometer, (a) is a plan view, and (b) is a front view.

[Explanation of symbols]

11 ... Fixing aid 12 ... Rotating body 13 ... Fixed shaft 16 ... Eye nut 17, 18 ... Insertion hole 20, 21 ... Hub bolt 22 ... Aluminum wheel 23 ... Male screw nut 23a ... Male thread 24 ... Nut 28 ... Non-rotating body 29 ... Steel wheel

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mitsuo Suzuki             2-17 Osaki, Shinagawa-ku, Tokyo Stock market             Shameidensha

Claims (3)

[Claims] 1. A rotating body which is detachably attached to a wheel of a vehicle and rotates integrally with the wheel, and an end portion of a cord-shaped member which is provided on the rotating body so as to be rotatable around an axis of the rotating body. And a non-rotating body having an engaging portion for connecting the fixing assisting tool. 2. The fixing aid according to claim 1, wherein an insertion hole is provided in the rotating body, and the position of the insertion hole is the same as the position of the insertion hole of the wheel. 3. A nut with a screw is screwed into a hub bolt inserted into the insertion hole of the wheel, the insertion hole of the rotating body is inserted into the male screw portion of the male screw nut, and the nut is attached to the male screw portion. The fixing aid according to claim 2, wherein the fixing aid is screwed to be attached to the wheel.