JP4235496B2 - Chassis dynamometer vehicle fixing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for fixing a vehicle to a chassis dynamometer.
[0002]
[Prior art]
In a chassis dynamometer that measures the various characteristics of an automobile by rotating the driving wheel of the automobile that has traveled on the drive body on a roller, the driving wheel is positioned on the roller correctly and the non-driving wheel It is necessary to perform measurement while fixing to the fuselage.
[0003]
As a technique for fixing such a non-driving wheel to a driving body, for example, a vehicle fixing device shown in FIG. 4 is known (for example, JP-A-10-267798).
As shown in the figure, the vehicle fixing device includes a rail 41 fixed to the driving body, a guide body 42 that slides in the front-rear direction of the vehicle while being supported by the rail 41, and a left-right direction of the vehicle that is supported by the guide body 42. It comprises a sliding stopper 43.
[0004]
And vehicle fixation in this vehicle fixing device is performed as follows. That is, two guide bodies 42 provided on each of the left and right sides are opened back and forth, and the vehicle is advanced on the fuselage in a state where the stopper 43 is moved in the left-right direction to a position where it does not obstruct the wheel running. The driving wheel (the front wheel in the figure) is positioned on the roller 44, the guide body 42 and the stopper 43 are moved in the front-rear direction and the left-right direction, respectively. The non-drive wheels 45 are brought into contact with each other so that the stopper 43 is fixed to the guide body 42 and the guide body 42 is fixed to the rail 42 at the position. Then, the belt 46 fixed to the stopper 43 is wound around the upper peripheral surface of the non-driving wheel 45 and tightened to fix the non-driving wheel 45 between the stoppers 43.
Prior art document information relating to the invention of this application includes the following.
[0005]
[Patent Document 1]
JP-A-10-267798 [0006]
[Problems to be solved by the invention]
According to the conventional vehicle fixing device, it is necessary to get over the guide body 42 over the vehicle when the vehicle is advanced onto the vehicle or withdrawn from the vehicle. Further, according to this vehicle fixing device, it is necessary to make the thickness of the guide body 42 relatively large in order to maintain the strength.
[0007]
In the case of a cold start test or the like, since it is necessary to cause the vehicle to travel on the driver manually, the presence of such a relatively thick guide body 42 increases the burden on the measurement operator. It was a factor.
Then, this invention makes it a subject to provide the vehicle fixing device of the chassis dynamometer which can perform installation of a vehicle more easily.
[0008]
[Means for Solving the Problems]
In order to achieve the object, the present invention provides a vehicle fixing device for fixing a non-driving wheel of a vehicle in which a driving wheel is mounted on the roller of a chassis dynamometer including a roller and a dynamometer that rotationally drives the roller. Between the two rails that are fixed directly or indirectly with respect to the running path of the vehicle, spaced apart in the left-right direction of the vehicle so that the non-driving wheels can be arranged therebetween, Both ends of the vehicle are supported so as to be movable in the front-rear direction of the vehicle, and the guide body is supported so as to be movable in the left-right direction of the vehicle. And a fixing member for fixing.
[0009]
According to such a vehicle fixing device, since the guide body is supported by the two rails from the left and right sides, the strength condition required for the guide body is relaxed, and the thickness of the guide body is made thinner than before. Will be able to. Therefore, it is possible to reduce the degree of obstacles to the vehicle travel of the guide body and reduce the burden of installing the operator's vehicle.
[0010]
In order to achieve the above object, the present invention provides a vehicle for fixing a non-driving wheel of a vehicle in which a driving wheel is mounted on the roller of a chassis dynamometer including a roller and a dynamometer that rotationally drives the roller. The fixed floor, together with a fixed floor fixedly installed, forms a runway for entering and exiting the chassis dynamometer of the vehicle, and the floor surface height is equal to the fixed floor movable in the longitudinal direction of the vehicle The movable floor includes a movable floor, and a fixed member that is supported by the movable floor so as to be movable in the left-right direction of the vehicle and that abuts against the non-driving wheels and fixes the non-driving wheels.
[0011]
According to such a vehicle fixing device, since the fixed floor forming the running path and the movable floor having the same floor surface height realize the sliding and support of the fixed member in the front and rear, left and right, when moving the vehicle, There is no step on the vehicle running surface caused by the guide body in the conventional vehicle fixing device. Therefore, the worker can easily install the vehicle.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described.
FIG. 1 schematically shows the configuration of the chassis dynamometer according to this embodiment.
Here, FIG. 1a is a schematic top view of the chassis dynamometer, and FIG. 1b is a schematic side view of the chassis dynamometer.
As shown in the figure, the chassis dynamometer advances the vehicle on the driving body 1, positions the vehicle driving wheel (front wheel in the figure) on the roller 2, and the vehicle fixing device 3 causes the left and right non-driving wheels (see FIG. In this case, after fixing the rear wheel), various characteristics of the automobile are measured by a dynamometer 4 connected to the roller 2 while the automobile is running.
[0013]
Next, the structure of the vehicle fixing device 3 is shown in FIG.
2a shows the front surface of the vehicle fixing device 3, FIG. 2b shows the top surface of the vehicle fixing device 3, FIG. 2c shows the back surface of the vehicle fixing device 3, and FIG. 2d shows the side surface of the vehicle fixing device 3. . However, here, the front direction of the vehicle (the right direction in FIG. 1) is the front.
As shown in the figure, the vehicle fixing device 3 includes two rails 11 fixed to the driving body 1, two guide bodies 12, and a total of four fixing blocks 13 provided two for each guide pair 12. I have.
As shown in FIGS. 2a and 2c, each guide body 12 has a left end engaged with the left rail 11 in the left / right up / down direction, and a right end engaged with the right rail 11 in the left / right up / down direction. Therefore, it is supported by the two rails 11. Further, as shown by the wavy lines, the two rails 11 can slide in the front-rear direction. Further, as shown in FIG. 2e representing the section taken along the sectional line AA in FIG. 2a and FIG. 2f representing the section taken along the sectional line BB in FIG. 2c, the front portion of the guide body 12 is inclined downward toward the front, It has a shape that can be inclined rearward. The guide body 12 can be fixed to the rail 11 at an arbitrary position on the rail 11 by a fastener 14 such as a bolt.
[0014]
Next, as shown in the cross-sectional views of FIGS. 2e and 2f, two fixed blocks 13 are provided for each guide body 12, and the lower portion of the fixed block 13 is engaged with the guide body 12 in the front-rear and vertical directions. By doing so, it is supported by the guide body 12. Each fixed block 13 is slidable to the left and right with respect to the guide body 12 as indicated by a broken line. One end of the fixing belt 15 is fixed to the two fixing blocks 13 provided in one guide pair 12, and the two fixing blocks 13 provided in the other guide pair 12 are fixed to the two fixing blocks 13. A hook for fixing the other end is provided.
[0015]
In such a configuration, the vehicle is fixed by the vehicle fixing device 3 as follows.
That is, the two guide bodies 12 are opened back and forth, and the vehicle is advanced on the fuselage 1 in a state in which each fixed block 13 is moved in the left-right direction to a position where it does not obstruct the running of the wheels. As shown in FIG. 2d, the guide body 12 and the fixed block 13 are moved in the front-rear direction and the left-right direction, respectively. The guide wheel 12 is abutted so as to sandwich the driving wheel, and the guide body 12 is fixed to the rail 11 at that position, and the two right and left fixed blocks 13 are abutted so as to sandwich the right non-driving wheel from the front and rear. The guide body 12 is fixed to the rail 11 at the position. Then, the belt fixed to one of the left fixed blocks 13 is hung on the upper peripheral surface of the left non-driving wheel, the other end of the belt is hung on the hook of the other left fixed block 13, and the length of the fixed belt 15 is increased. The non-driven wheel on the left side is tightened and fixed using an adjustment tool or the like, the belt fixed to one of the right fixed blocks 13 is hung on the upper peripheral surface of the right non-driven wheel, and the other end of the belt is It is hung on the hook of the other fixing block 13 and the right non-driving wheel is fastened and fixed using a length adjuster of the fixing belt 15 or the like.
[0016]
In the vehicle fixing device 3 described above, the fixing block 13 is a mechanism for tightening a fastener such as a bolt for fixing the fixing block 13 to the guide body 12 or a fixing belt 15 hung around the non-drive wheel. In addition, the fixed block 13 can be moved in the front-rear direction with respect to the guide pair 2 provided with the fixed block 13 so as to absorb the difference in the distance between the left and right front and rear wheels. An adjustment mechanism may be further provided.
As described above, according to the present embodiment, since the guide body 12 is supported by the two rails 11 from both the left and right sides, the strength condition required for the guide body 12 is relaxed, and the thickness of the guide body 12 is reduced. Can be made thinner than before. Therefore, it is possible to reduce the degree of obstacle to the vehicle travel of the guide body 12 and to reduce the burden of installing the operator's vehicle. Further, in the present embodiment, the shape of the guide body 12 is inclined downward toward the front direction and the rear direction so that a steep step does not occur on the running path of the vehicle. This reduces the burden of installing the user's vehicle.
[0017]
Incidentally, as shown in FIG. 3, the vehicle fixing device 3 according to the present embodiment can also be applied such that the upper surface of the guide body 12 is at the same height as the upper surface (vehicle traveling surface) of the driving body 1.
3A is a schematic top view of the periphery of the vehicle fixing device 3 of the chassis dynamometer when moving the vehicle, and FIG. 3B is a side view of the periphery of the vehicle fixing device 3 of the chassis dynamometer when moving the vehicle. Fig. 3c is a schematic top view of the periphery of the vehicle fixing device 3 of the chassis dynamometer when the vehicle is fixed, and Fig. 3b is a side view of the periphery of the vehicle fixing device 3 of the chassis dynamometer when the vehicle is fixed. A schematic diagram is shown.
[0018]
As shown in FIGS. 3a and 3b, this configuration is such that the upper surface, which is the vehicle running surface, of the fuselage 1 has a shape that is recessed downward in the vicinity of the range where the non-driving wheels are located when the vehicle is fixed. The fixing device 3 is installed such that the height of the upper surface of the guide body 12 formed substantially horizontally matches the height of the upper surface of the main body 1 outside the recess. That is, in this embodiment, the guide body 12 is configured as a movable floor that is movable in the front-rear direction and that has a floor surface outside the recess by the driving body 1 and the height of the floor surface is equal.
[0019]
When moving the vehicle, the front and rear guide bodies 12 are moved back and forth so that the upper surface of the guide body 12 and the upper surface of the driving body 1 are smoothly connected, and a depression generated between the front and rear guide bodies 12 is formed. A plurality of temporary floor members 31 are arranged between the front and rear guide bodies 12 so as to be arranged in the front and rear direction, and the upper surface of the driver 1, the upper surfaces of the two guide bodies 12, and the plurality of temporary floor members 31 A smooth and horizontal floor surface is formed.
[0020]
In such a configuration, when fixing the non-driving wheels of the vehicle, as shown in FIGS. 3c and 3d, each temporary floor member 31 except the temporary floor member 31 supporting the non-driving wheels is removed. Above, the guide body 12 is moved in the front-rear direction by using the gap generated thereby, and the two front and rear fixed blocks 13 are moved in the left-right direction so that the non-drive wheels are sandwiched from the front and rear by the non-drive wheels. Make contact. Then, the guide body 12 is fixed to the rail 11 at the position, the fixing belt 15 fixed to one of the fixing blocks 13 is hung around the upper peripheral surface of the non-driving wheel, and the other end of the fixing belt 15 is connected to the other side. The non-driving wheel is fastened and fixed by the fixing belt 15 using a length adjuster of the fixing belt 15 and the like.
[0021]
According to such a vehicle fixing device 3, when the vehicle moves, the step of the vehicle traveling surface by the guide body 12 does not occur, so that the operator can easily install the vehicle.
Incidentally, the configuration shown in FIGS. 3a, b, c, and d may use a flexible temporary floor sheet 32 shown in FIGS. 3e and f in place of the plurality of temporary floor members 31. . By doing in this way, the movement of the vehicle with the traveling surface leveled or the vehicle can be performed only by expanding or bending the temporary floor sheet 32 without taking the trouble of removing or installing the temporary floor member 31. The non-driving wheel can be fixed.
[0022]
In the configuration shown in FIG. 3, the thickness of the guide body 12 does not hinder the installation of the vehicle, i.e., the guide body 12 can have sufficient strength. You may make it only one.
[0023]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a vehicle fixing device for a chassis dynamometer that can more easily install a vehicle.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a chassis dynamometer according to an embodiment of the present invention.
FIG. 2 is a diagram showing a vehicle fixing device according to an embodiment of the present invention.
FIG. 3 is a diagram showing another configuration example of the vehicle fixing device according to the embodiment of the present invention.
FIG. 4 is a schematic diagram showing a conventional vehicle fixing device.
[Explanation of symbols]
1: driving body, 2: roller, 3: vehicle fixing device, 4: dynamometer, 11: rail, 12: guide body, 13: fixing block, 14: fastener, 15: fixing belt, 31: temporary floor member, 32: Temporary floor sheet.

Claims (1)

A vehicle fixing device for fixing a non-driving wheel of a vehicle in which a driving wheel is placed on the roller of a chassis dynamometer including a roller and a dynamometer that rotationally drives the roller,
The vehicle , which is movable in the front-rear direction of the vehicle and forms a runway for entering and exiting the chassis dynamometer with the fixed floor fixedly installed, and the vehicle between the rollers by the movement. A movable floor having a variable height in the front-rear direction and having the same floor height as the fixed floor,
A fixing member connected to the movable floor so as to be movable in the left-right direction of the vehicle and moving in the front-rear direction of the vehicle together with the movable floor to abut against the non-driving wheels and fix the non-driving wheels; A vehicle fixing device for a chassis dynamometer, comprising:

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