JPS6335933B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle fixing device for a vehicle testing machine such as a one-roller chassis dynamometer.

When performing vehicle power performance tests, exhaust gas tests, fuel consumption tests, etc. using a single-roller chassis dynamometer, the drive wheels should be placed on rollers or drums, and the non-drive wheels should be fixed with a vehicle fixing device. The vehicle is set by Generally, the above-mentioned vehicle fixing device has a structure as shown in Fig. 1,
That is, the arm 4 of the fixture 3 is rotatably attached to the shaft 2 protruding from the side surface of the triangular car stop 1, and a fork-shaped stator 5 that engages with the circumferential surface of the tire T is attached to the tip of the arm 4 with a nut. 6 is used for tightening and fixing. This fixing device has the advantage of being able to easily fix a relatively wide range of vehicles;
The disadvantage is that the vehicle cannot be rigidly fixed due to the elasticity of the tires and the influence of the car stoppers. Since the vehicle cannot be rigidly fixed, the following problems occur.

(1) When simulating urban driving conditions on a chassis dynamometer, the vehicle moves back and forth when it accelerates or decelerates, resulting in the same effect as inserting a torsion bar into the drive system. Can't simulate.

(2) When testing front-wheel drive vehicles, the steering system causes the vehicle to move left and right, and depending on the vehicle, the wheels may come off the rollers. To prevent this, it is necessary to take measures such as pulling the vehicle body near the drive wheels from side to side with a wire rope.

The phenomenon (2) above is due to the fact that the steering force does not occur until the vehicle body has shifted to the left or right to a certain extent. It is only necessary to generate sufficient restoring force of the steering system even with a slight lateral displacement.

An object of the present invention is to provide a fixing device that can rigidly fix a vehicle with a simple structure in order to solve the problems (1) and (2) above.

A first invention for achieving such an object includes a tireless wheel-like member that is attached in place of a non-driving wheel of a vehicle, and a fixing base that rigidly fixes the wheel-like member, the fixing base including: A pair of protruding members for restraining the movement of the wheel-shaped member in the front-rear direction is provided on a base that supports the wheel-shaped member, and a wire or chain is used to press and secure the wheel-shaped member to these protruding members. The invention is characterized in that it is provided with a tightening and fixing means consisting of.

Further, a second invention for achieving the above object includes a wheel-shaped or disc-shaped member without tires that is attached in place of a non-driving wheel of a vehicle, and a fixing base that rigidly fixes the wheel-shaped or disc-shaped member. The fixed base is provided with a pair of protruding members on a base supporting a wheel-shaped or disc-shaped member, and the wheel-shaped or disc-shaped member positioned between the protruding members is attached to at least one of the protruding members. It is characterized in that it is fixed in a state in which movement in the front and back direction can be restrained, and that fixing means for fixing pins protruding from the wheel-shaped or disk-shaped member are provided on these protruding members.

In the first aspect of the invention, the longitudinal movement of a wheel-like member without a tire attached in place of a non-driving wheel of a vehicle is restrained by mounting it between a pair of protruding members on a fixed base, Moreover, by tightening the wire or chain, the wheel-like member mounted between the protruding members is prevented from slipping upward. Therefore, by extremely simple means, the vehicle can be rigidly fixed without movement of the vehicle due to elastic deformation of the tires or the like.

On the other hand, in the second aspect of the invention, the movement of the wheel-shaped or disk-shaped member attached in place of the non-driving wheels of the vehicle in the longitudinal direction is restrained by fixing it to at least one of the pair of protruding members. Further, the escapement of the wheel-shaped or disk-shaped part above the upper member is carried out by fixing the pin provided thereon to each projecting member by means of a fixing means. Therefore, it is necessary to individually restrain the wheel-shaped or disk-shaped members in the longitudinal direction and the vertical direction, but by using simple means, the movement of the vehicle due to elastic deformation of the tires can be eliminated, and the vehicle can be made extremely rigid. Fixed.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

The first embodiment shown in FIGS. 2 and 3 includes a wheel-like member 11 that is attached to the vehicle in place of the non-driving wheels of the vehicle, and a fixing base 12 that rigidly fixes the wheel-like member. . Wheel-shaped member 11
As a wheel, a wheel itself with a tire removed from it, or a member having a structure similar to that wheel can be used, and this wheel-shaped member 11 can be used in place of a non-driving wheel in a vehicle in the same way as when attaching a wheel. Fixed.

On the other hand, the fixed stand 12 has a pair of protruding members 14 on a base 13 that is fixed on the installation surface of the vehicle testing machine and supports the wheel-like member 11, and that restrains the movement of the wheel-like member 11 in the front and rear direction. , 15 are provided. The protruding member 14 is configured as a support with which the circumferential groove of the wheel-like member 11 comes into contact, and the protruding member 15 is arranged in the shape of a triangular wheel stop to face the support. Therefore, the size of the wheel-like member 11 is Even if it is not fixed, it can be placed and fixed between the protruding members 14 and 15 on this fixing base 12.

Further, the protruding members 14 and 15 are provided on the base 13.
A tightening and fixing means 16 consisting of a wire or a chain is provided to press and fix the wheel-shaped member 11. This wire or chain has one end fixed to a hook 17 on the base 13 and a wheel-like member 11 placed between the protruding members 14 and 15.
After being wrapped around the top, it is passed through a hole 18 provided in the protruding member 14 and further passed below a roller 19, and its tip is connected to a fastening tool 20. This fastener 20
As such, an appropriate tightening tool can be selected from various known tightening tools for tightening wires or chains.

In addition, the base 13 and the protruding members 14, 15
It is desirable to have a shape that fits appropriately into the circumferential groove of the wheel-shaped member 11. Furthermore, the vehicle fixing device described above can of course be applied to the left and right non-driving wheels of a vehicle.

The vehicle fixing device having such a configuration performs various vehicle tests by fixing the wheel-shaped member 11 fixed to the vehicle on the fixing base 12 in the state shown in FIG. 3, and is different from the conventional example. Not only can the driven wheels be fixed rigidly with a simpler structure than the
It can be commonly used for all types of automobiles, does not require adjustment of camber or toe-in, and can be handled relatively roughly, yet can be firmly fixed.

4 and 5 show a second embodiment of the present invention, which, like the first embodiment, is equipped with a wheel-shaped member 31 and a fixing base 32 for rigidly fixing it. The specific structure is different.

In order to make the wheel-shaped member 31 applicable to multiple types of vehicles, the bolt holes 3 arranged differently are used to fix the wheel-shaped member 31 in place of the driven wheels.
3, 33, . . . , and a pair of pins 34, 35 are provided protruding from both ends of the wheel-like member 31, and a screw is cut into one of the pins and a nut 36 is screwed into the hole. This wheel-like member 31 can also be constructed as a disc-like member.

On the other hand, the fixed base 32 is a base 3 that is fixed on the installation surface of the vehicle testing machine and supports the wheel-shaped member 31.
A pair of protruding members 38 and 39 in the form of pillars are protrudingly provided on 7 . This pair of protruding members 38, 39
are arranged to position the wheel-like member 31 between them, and support grooves 40, 41 for supporting the pins 34, 35 provided on the wheel-like member 31 are provided on the tops of both protruding members 38, 39. It is something. Further, the inner walls 42, 43 of the bearing grooves 40, 41 in these protruding members 38, 39 are widened at the upper part to facilitate the insertion of the pins 34, 35 into the bearing grooves 40, 41, and are further expanded to protrude. The upper ends of the opposing surfaces of the members 38 and 39 are cut out diagonally to facilitate correction of positional deviation when the wheel-like member is fitted between the protruding members 38 and 39. A nut 36 screwed into one pin 34 of the wheel-shaped member 31 connects the wheel-shaped member 31 positioned between the protruding members 38 and 39 to the one protruding member 38.
This is to fix it in a state where movement in the front and rear directions can be restrained. The wheel-shaped member 31 is fixed with such a nut, and both the protruding members 38,
There is no problem in applying it to 39.

The protruding members 38 and 39 are also provided with pins 34 and 35 that can be removed upwardly as fixing means for fixing the pins 34 and 35 protruding from the wheel-shaped member 31 in a state that they are fitted into the support grooves 40 and 41. Safety pins 44 and 45 are configured to be insertable into pin holes 46 and 47 on the protruding members 38 and 39.

In the vehicle fixing device having such a configuration, a wheel-shaped member 31 is attached in place of the driven wheels of the vehicle, and the wheel-shaped member 31 is lifted and its pins 34 and 35 are inserted into the support grooves 40 on the protruding members 38 and 39. , 41, and in this state, tighten the nut 36 to restrict the movement of the wheel-shaped member 31 in the longitudinal direction, and further insert the safety pins 44, 45 into the pin holes 46, 47 on the protruding member to secure the vehicle. It is used for fixing.

As is clear from the detailed description above, according to the present invention, a wheel-like member or a disk-like member without tires is attached in place of the non-driving wheels of a vehicle, and this is attached to a pair of protruding members on a fixed base. Because it is fixed, compared to conventional fixing equipment that fixes the tire to the bollard, it prevents the vehicle from moving due to elastic deformation of the tire or slight running onto the bollard, and fixes the vehicle rigidly. You can also
In particular, in the first aspect of the invention, the forward and backward movement of the wheel-shaped member is restrained by a pair of protruding members on a fixed base, and the upward movement of the wheel-shaped member mounted between the protruding members is achieved by tightening a wire or chain. Since escape is prevented, the vehicle can be rigidly fixed by an extremely simple means of simply attaching the wheel-like member between the protruding members and tightening the wire or chain.Furthermore, in the second invention, , the movement of the wheel-shaped or disc-shaped member in the front-back direction is restrained by fixing it to at least one of a pair of protruding members, and the upward escape of the wheel-shaped or disc-shaped member is performed by fixing it to each protruding member. Therefore, it is necessary to individually restrain the wheel-shaped or disk-shaped member in the front-rear direction and the vertical direction, but extremely reliable and stable fixation can be achieved by simple means.

[Brief explanation of the drawing]

FIG. 1 is a side view of the conventional example, FIGS. 2 and 3 are a perspective view and a side view of the first embodiment of the present invention, and FIGS. 4 and 5 are perspective views of the second embodiment of the present invention. and a side view. 11, 31...Wheel-shaped member, 12, 32...
...Fixed stand, 13,37...Base, 14,15,3
8, 39... Projection member, 16... Tightening fixing means,
34, 35...Pin.

Claims (1)

[Scope of Claims] 1. A wheel-like member without a tire that is attached in place of a non-driving wheel of a vehicle, and a fixing base that rigidly fixes the wheel-like member, the fixing base supporting the wheel-like member. A pair of protruding members for restraining the movement of the wheel-like member in the front-back direction are provided on a base for fixing the wheel-like member, and tightening and fixing means consisting of a wire or chain for crimping and fixing the wheel-like member to these protruding members. A vehicle fixing device in a vehicle testing machine, characterized in that it is provided with. 2 A wheel-shaped or disc-shaped member without a tire that is attached in place of a non-driving wheel of a vehicle, and a fixing base that rigidly fixes the wheel-shaped or disc-shaped member, and the fixing base is equipped with a wheel-shaped or disc-shaped member. A pair of protruding members are provided on a base that supports the members, and a wheel-shaped or disk-shaped member positioned between the protruding members is fixed to at least one of the protruding members in a state where movement in the front and back direction can be restrained, and these A vehicle fixing device for a vehicle testing machine, characterized in that the protruding member is provided with a fixing means for fixing a pin protruding from the wheel-shaped or disc-shaped member.