JPH074540Y2 - Stopper device in roller tester - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stopper device for preventing a vehicle mounted on a test roller from falling out in a roller tester for carrying out a vehicle running test or the like.

[0002]

2. Description of the Related Art An example of a vehicle roller tester is shown in FIG. In the case of this roller tester, the front main test roller 3 and the front auxiliary test roller 4 located behind the front main test roller 3 are brought into contact with the front tire 2 of the vehicle 1 conveyed to a desired position. A rear main test roller 6 and a rear auxiliary test roller 7 located behind the rear main test roller 6 are brought into contact with the rear tire 5 to perform a desired running test or the like.

During the test, a stopper device 8 having stopper rollers 9 is attached to the front and rear of the vehicle 1 so that the vehicle 1, that is, the tires 2 and 5 does not fall out of the device, for example. Then, the stopper roller 9 is brought into contact with the front side of the front tire 2 and the stopper roller 9 is also brought into contact with the rear side of the rear tire 5 to prevent the vehicle 1 from falling off. ing.

[0004]

However, in this type of roller tester, since it is necessary to cope with vehicles 1 having different tire sizes, the stopper roller 9 is conventionally used as the link member 10 of the link mechanism. The contact position is adjusted by mounting it on one end.

However, in the case of the stopper device 8 having the conventional structure having such a function, many link mechanisms (for example, three sets of link mechanisms) are required, or at least the number of link mechanisms used is this link mechanism. There is a problem in that a large number of cylinders (for example, three cylinders) are required to drive the.

The present invention has been made in view of such a conventional situation, and is inexpensive, highly reliable in operation, and excellent in usability by combining one link mechanism and two cylinders. It is intended to provide a stopper device for the roller tester.

[0007]

[Means for Solving the Problems] The feature of the present invention is to prevent the vehicle from falling off by bringing a stopper roller into close proximity or contact with a tire of the vehicle mounted on a test roller. In the stopper device of the roller tester, the first cylinder for controlling the link mechanism to which the stopper roller is attached and the facing or contact position of the stopper roller with respect to the tire of the vehicle by driving the link mechanism. And a second cylinder for raising and lowering the entire link mechanism to control the facing or contact position of the stopper roller with respect to the tire of the vehicle.

[0008]

According to this stopper device, by driving the first cylinder or the second cylinder, the stopper roller can be made to face or abut the optimum position of the tire according to any tire size. it can. This effectively prevents the vehicle from falling off.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show respective operating states of a stopper device in a roller tester according to the present invention. In the drawing, the stopper device (only one side) of the rear tire portion in the roller tester as shown in FIG. 3 is shown. In these figures, 15A and 15B are small and large diameter rear tires of the test vehicle, 16 is a rear main test roller, and 17 is a rear main test roller.
Is a rear auxiliary test roller, and 18 is a stopper device for allowing the stopper roller 19 to face the rear tires 15A and 15B in close proximity.

The stopper device 18 has a slide base 30 which is movable up and down on a base base 22 of a machine frame 21. The slide base 30 includes a cylinder rod 41 of a second cylinder 40 for raising and lowering fixed to the base base 22 side.
Are connected, and the slide table 30 is moved up and down by driving the cylinder 40. At this time, a guide shaft 31 is planted downward on the slide base 30 side so that the slide base 30 can be lifted and lowered stably.
It is designed to be guided to the machine frame 21 side.

A horizontal member 33 supported by front and rear standing members 32, 32, etc. is assembled on the slide base 30, and a guide formed of a long hole extending horizontally in the right side of the horizontal member 33 in the figure. The hole 33a is formed.
The stopper roller 19 is attached to the tip of the guide hole 33a, and the guide roller 33 is attached to the protruding portion at the lower right end in the figure of the floating link member 51 which also serves as a roller supporting member of the link mechanism 50 for moving the stopper roller 19 in position. A shaft pin (a shaft rod or the like) 52 provided is fitted.

The floating link member 51 forms a pair with a fixed link member 54 axially attached to a table portion 53 of the slide base 30 on the left side in the drawing. The free end side of the fixed link member 54 is The protrusions 51a provided below the tip of the member 51 are pivotally attached together. Further, the shaft attachment portions of the link members 51 and 54 are
A cylinder rod 61 of a first cylinder 60 that drives the link mechanism 50 is mounted on the shaft. Also, this first
The other end (the side opposite to the cylinder rod 61) of the cylinder 60 is pivotally attached to the standing piece 34 or the like installed on the right side in the figure on the slide base 30.

Therefore, in the case of this link mechanism 50,
When the cylinder rod 61 of the first cylinder 60 is contracted, the free end side of the fixed link member 54 is pulled clockwise in the drawing, and the shaft pin 52 of the floating link member 51 is a horizontal member. Since it moves to the right end side of the guide hole 33a of 33 in the figure, the floating link member 51 is in a substantially horizontal state, and the stopper roller 19 is stored below the floor surface F in the test field where the roller tester is installed. Retained. When the cylinder rod 61 of the first cylinder 60 is extended from this state, as the rod 61 extends, the free end side of the fixed link member 54 rises in the counterclockwise direction upward in the drawing, and the free link member 51 moves. Since the shaft pin 52 moves to the left end side in the figure of the guide hole 33a of the horizontal member 33, the free end side of the floating link member 51 moves to the upper left side in the figure in conjunction with the cylinder 60 and moves to the stopper roller. 19 is made to protrude from the floor surface F and held.

Next, the operation of the stopper device 18 of the present invention thus constructed, particularly the operation when the tire sizes are different, will be described. For example, as shown in FIG.
Rear tire 15A with small diameter tire for test vehicle
In the case of (solid line), the cylinder rod 41 of the second cylinder 40 is contracted so that the slide base 30 moves to the base base 22.
The cylinder rod 61 of the first cylinder 60 is extended to drive the link mechanism 50 in the state where the link mechanism 50 is placed thereon.
Then, as described above, the free end side of the floating link member 51 projects from the floor surface F, and the stopper roller 19
As shown in FIG. 1, close to and behind the rear tire 15A and at a position higher than the rear auxiliary test roller 17. This effectively prevents the small-diameter rear tire 15A from falling off. Of course, although not shown, such regulation is also applied to the front tire.

On the other hand, as shown in FIG. 2, when the tire of the test vehicle is the large-diameter rear tire 15B (solid line), the cylinder rod 61 of the first cylinder 60 is contracted to cause the floating link member 51 to contract. The cylinder rod 4 of the second cylinder 40 from a state in which the
1 is extended and the slide base 30 is directly pushed up to move the stopper roller 19 of the floating link member 51 in the horizontal state to a position higher than that of the rear tire 15B behind the rear tire 15B. Proximity confrontation. As a result, the large diameter rear tire 15B
Dropout is effectively prevented. Of course, although not shown, such regulation is also applied to the front tire.

In the above embodiment, the stopper roller 19 is made to face the tires 15A and 15B in close proximity, but the present invention is not limited to this close proximity, and may be brought into direct contact. For driving tests,
It is preferable that the stopper roller 19 is contactless, but in the case of a roller, even if it is brought into direct contact with it, it rotates smoothly, so there is not much problem.
Further, in the above-described embodiment, the tire size is of two types, large and small, but the present invention is not limited to this.
Further, it is possible not only to drive the cylinders 40 and 60 separately, but also to drive the cylinders 40 and 60 at the same time to determine the confronting and abutting positions of the stopper roller 19 which are delicate.

[0017]

As is apparent from the above description, according to the present invention, it is possible to effectively prevent the test vehicle from falling off by combining one link mechanism and two cylinders. It is possible to provide a stopper device for a roller tester that is inexpensive, has a simple structure, has high reliability without fear of failure, is stored under the floor when not in use, and is excellent in usability.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing an operating state of a tire having a small diameter in a stopper device for a roller tester according to the present invention.

FIG. 2 is a schematic explanatory view showing an operation state of a large diameter tire in the roller tester stopper device according to the present invention.

FIG. 3 is a schematic explanatory view showing an entire roller tester for performing a vehicle running test and the like.

[Explanation of symbols]

 15A, 15B Rear tire 16 Rear main test roller 17 Rear auxiliary test roller 18 Stopper device 19 Stopper roller 21 Machine frame 22 Base stand 30 Slide stand 33 Horizontal member 40 Second cylinder 50 Link mechanism 51 Floating link member 54 Fixed link member 60 First cylinder

Claims (1)

[Scope of utility model registration request] 1. A stopper device in a roller tester in which a stopper roller is brought into close proximity or contact with a tire of a vehicle mounted on a test roller so as to prevent the vehicle from falling off, wherein the stopper roller is mounted. Link mechanism, a first cylinder that drives the link mechanism to control the facing or contact position of the stopper roller with respect to the tire of the vehicle, and the link mechanism as a whole to move up and down to the tire of the vehicle. A stopper device for a roller tester, comprising: a second cylinder that controls the facing or contact position of the stopper roller.