JPH0428045Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a vehicle fixing device for fixing a vehicle to be tested with a chassis dynamometer.

B. Summary of the invention The present invention is a vehicle fixing device that fixes a test vehicle on the rollers of a chassis dynamometer via cables, and is equipped with a setting device that sets the height of the hook of the vehicle fixing device to an arbitrary position. This ensures that the cable connecting the test vehicle and the hook of the vehicle fixing device is always horizontal.

C. Prior Art A conventional vehicle fixing device has a structure as shown in FIGS. 7 to 9.

Figure 7 is an overall view showing the fixed state of a four-wheel drive test vehicle, Figure 8 is a partially cutaway side view of a screw type vehicle securing device, and Figure 9 is an illustration of a slide bearing type vehicle securing device. It is a partially cutaway side view, and the same number in these figures indicates the same name or similar structure. In FIG. 7, the fixed state of the test vehicle will be explained. Test vehicle 0 in which the drive wheels are placed on rollers 02 connected to a chassis dynamometer
1, and the embedded pipe 2 of the vehicle fixing device 1 is embedded in the floor and fixed.
By adjusting the height of the fixed part 05 of the test vehicle 01,
The heights of the hooks 8 of the vehicle fixing bracket 1 are the same, and a chain 04 equipped with a manual winch 03 is hung between the test vehicle 01 and the hook 8.
Accordingly, the test vehicle 01 is fixed on the chassis dynamometer by tensioning the chain 04.

Next, a screw type vehicle fixing device will be explained based on FIG. 8.

In the figure, reference numeral 1 denotes a vehicle fixing device, and the vehicle fixing device 1 includes a wire pole 3 having one end embedded in the floor and an embedded pipe 2 having a threaded portion 3a formed at the other end. A cylindrical moving metal fitting 4 having eave-shaped protrusions 4b and 4c is screwed into the threaded portion 3a of the wire pole 3 with a column portion 4a in between. A movable metal stopper 5 with a hook attached thereto is fixed to the tip of the wire pole 3. A ring-shaped latch 6 having an inner diameter slightly larger than the outer diameter of the column 4a is provided on the column 4a of the movable bracket 4 so as to be rotatable and slightly movable up and down with respect to the movable bracket 4. .

A shock absorbing device 7 is attached to one location on the outer periphery of the latch 6. This shock absorber 7
A cylindrical spring pipe 7a, a rod 7b provided at the center of the cylinder inside the spring pipe 7a and movable in the longitudinal direction with approximately the same length as the spring pipe 7a, and the hook fixed to the rod 7b. Between a disk-shaped spring receiver 7c, which has an outer diameter slightly smaller than the inner diameter of the spring pipe 7a, provided at the end of the metal fitting 6, and one end of the inner surface of the spring pipe 7a inside the spring pipe 7a, and the spring receiver 7c. It consists of a spring pipe 7d provided at the end. A hook 8 is provided at the end of the rod 7b opposite to the spring receiver 7c, passing through the end surface of the spring pipe 7a.
is provided. The impact breathing device 7 has the above-described structure and absorbs impact in a direction perpendicular to the wire pole 3. When performing a test by fixing the test vehicle using the vehicle fixing device 1 described above, the height of the hook 8 is set at the same height as the fixing position of the test vehicle in order to prevent unnecessary force from being applied and to ensure accurate measurements. Adjust so that it is horizontal. During normal operation, the hook 8 is fixed in the pulling direction, and the latch 6 is rotatable and slightly movable up and down relative to the movable bracket 4, so that vibrations of the test vehicle are absorbed. In addition, in the event that the test vehicle's tire becomes punctured, a vehicle lifting device (not shown) is activated to prevent the test vehicle from falling within a certain distance, but at this time, the impact is alleviated by the shock absorbing device, causing the cable to break. It can only receive loads less than the load.

Next, a slide bearing type vehicle fixing device will be explained based on FIG. 9. 9 is a moving metal fitting, and a slide bearing 9 provided in this moving metal fitting 9
It is rotatably and vertically movable provided on the wire pole 3 via a. At one location on the outer periphery of the movable fitting 9, there is a shock absorbing device 7 having a hook 8 at the tip.
is installed. When performing a test by fixing a test vehicle using a slide bearing type vehicle fixing device, the movable fitting 9 is attached to the slide bearing 9.
Since the wire pole 3 is rotatably and vertically movable via the wire pole 3, the cable connecting the test vehicle and the hook 8 of the vehicle fixing device can be kept horizontal at all times and vibrations can be absorbed.

D Problems to be solved by the invention Conventional vehicle securing devices have the above-mentioned configuration, so when a test is conducted using a screw-type vehicle securing device, the hook must be removed every time the vehicle is changed. Adjustment in the height direction is required, and the position of the hook can only be moved up and down slightly, so it cannot adequately accommodate up and down movements of the vehicle while driving. Furthermore, when a test is conducted using a slide bearing type vehicle fixing device, the movement is too smooth and the moving bracket always tends to lower due to the weight of the shock absorber, so the position of the hook also tends to lower. As a result, the cable connecting the test vehicle is not always horizontal, and an unnecessary force in the vertical direction that does not act on the test vehicle during actual driving is exerted on the test vehicle, which adversely affects the characteristic test of the test vehicle. Both devices had their own problems as described above.

E Means for solving this problem In view of this point, in order to solve the above problem, the present invention uses a spring in a movable fitting provided with a slide bearing that restricts the movement of the wire to some extent. A set screw or balance weight was installed.

Function The present invention uses a slide bearing to allow the movable metal fitting to move freely in the vertical direction and to rotate freely relative to the wire pole, and further includes a spring on the movable metal fitting.
By providing a set screw or a balance weight, the height of the hook of the movable metal fitting can be set at an arbitrary position on the wire pole.

F. Embodiment Embodiments of the present invention will be described below with reference to FIGS. 1 to 6. Note that in FIGS. 1 to 6 of the embodiment, the same reference numerals as in FIGS. 8 and 9 indicate the same names or similar components. FIG. 1 is a partially cutaway side view of the vehicle fixing device according to the first embodiment of the present invention, and FIG. 2 is a partially cutaway side view of part A in FIG. 1 of the vehicle fixing device according to the first embodiment of the present invention. Enlarged view, 3rd
The figure is a partially cutaway enlarged view of the same portion as section A in FIG. 1 of the vehicle fixing device according to the second embodiment of the present invention. FIG. 4 is a partially cutaway side view of a vehicle fixing device according to a third embodiment of the present invention, FIG. 5 is a partially cutaway side view of a vehicle fixing device according to a fourth embodiment of the present invention, and FIG. FIG. 5 is a perspective view of a vehicle fixing device according to a fifth embodiment of the present invention. FIG. 7 shows a four-wheel drive vehicle in a fixed state using a vehicle fixing device. A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In FIGS. 1 and 2, a cylindrical holder 10 is provided on the top of the movable fitting 9. As shown in FIGS. Inside this holder 10, springs 12 having split blocks 11 at their tips are provided at four equally spaced locations facing the wire pole 3. The split block 11 has a movable fitting 9 relative to the wire pole 3.
It is like a piece that has enough frictional force to support. Therefore, since the split block 11 acts as a brake, it is possible to set the movable bracket 9 to any desired height.
You can move freely.

Next, a second embodiment of the present invention will be described based on FIG.

The moving metal fitting 9 is provided on the wire pole 3 so as to be vertically movable and rotatable by a slide bearing 9a. At the top of the moving bracket 9 is a holder 1.
0 is provided in the holder 10, and a set screw 1 is provided in the holder 10 so that the split block 11 contacts the wire pole 3.
It is provided so that it can be pressed with 3.

Next, a third embodiment of the present invention will be described based on FIG. 4.

Reference numeral 20 denotes a balance weight, which is provided inside the wire pole 3 and is connected by a wire 22 to a shock absorbing device 7 provided on the outer periphery of the movable metal fitting 9 via a pulley 21 provided on the movable metal fitting stopper 5. are connected together. The balance weight 20 moves up and down within the wire pole 3 and uses its own weight to balance the weights of the movable metal fitting 9, the hook 8, and the shock absorbing device 7, and allows the movable metal fitting 9 to be freely set and moved in the height direction. I made it so.

Next, a fourth embodiment of the present invention will be described based on FIG.

Reference numeral 20 denotes a balance weight, which is provided inside the bit and is attached to the outer periphery of the movable metal fitting 9 with a wire 22 passing through the inside of the wire pole 3 and via a pulley 21 provided on the movable metal fitting stopper 5. It is connected to a shock absorbing device 7.

Next, a fifth embodiment of the present invention will be described based on FIG. 6.

The movable metal fitting 9 is provided on the wire pole 3 so as to be vertically movable and rotatable by a slide bearing (not shown) provided in the movable metal fitting 9.

20 is a balance weight, and this balance weight 20 is a pulley 2 provided on the moving metal stopper 5.
1 and is connected to a shock absorbing device 7 provided on the outer periphery of the movable fitting 9 by a wire 22.
The balance weight 20 is installed in such a shape or position that it does not come into contact with the wire 22 and the wire pole 3. Furthermore, in order to avoid contact between the two when the movable metal fitting 9 moves upward and the balance weight 20 moves downward, the wire pole 3 has a length corresponding to the stroke of the movable metal fitting 9.

The sixth to eleventh embodiments described below are a combination of the first to fifth embodiments, so the drawings will be omitted.

In the sixth embodiment of the present invention, a spring 1 is provided in the movable fitting 9 with split blocks 11 at one end at four locations in the holder 10 of the first embodiment explained in FIG.
2 and a balance weight 20 connected via a pulley 21 with the wire 22 of the third embodiment described in FIG.

Next, in the seventh embodiment of the present invention, the movable fitting 9 has a second
4 in the holder 10 of the first embodiment explained in the drawings
This vehicle fixing device includes both a spring 12 having a split block 11 at one end at a location, and a balance weight 20 connected via a pulley 21 with a wire 22 of the fourth embodiment described in FIG.

Furthermore, in the eighth embodiment of the present invention, the movable fitting 9 has a second
4 in the holder 10 of the first embodiment explained in the drawings
This vehicle fixing device includes both a spring 12 having a split block 11 at one end at a location, and a balance weight 20 connected via a pulley 21 with a wire 22 of the fourth embodiment described in FIG.

Further, in the ninth embodiment of the present invention, the movable fitting 9 has a third
4 in the holder 10 of the second embodiment explained in the drawings
Set screw 1 with split block 11 at the tip at the location
3 and a balance weight 20 connected via a pulley 21 with the wire 22 of the third embodiment described in FIG.

Next, in the tenth embodiment of the present invention, a third
4 in the holder 10 of the second embodiment explained in the drawings
Set screw 1 with split block 11 at the tip at the location
3 and a balance weight 20 connected via a pulley 21 with the wire 22 of the fourth embodiment described in FIG.

In the eleventh embodiment of the present invention, the movable fitting 9 is provided with set screws 13 having split blocks 11 at the tips at four locations in the holder 10 of the second embodiment explained in FIG.
Wire 22 of the fifth embodiment explained in FIG.
This is a vehicle fixing device comprising both a balance weight 20 and a balance weight 20 connected via a pulley 21.

The combination of the split blocks and balance weights shown in the embodiments shown in FIGS. 6 to 11 is particularly effective in vehicle tests that involve violent vertical movements of the test vehicle due to sudden starts, sudden braking, etc.

G. Effects of the invention Since the invention has the above-mentioned configuration, it is easy to set the height of the hook of the movable bracket.
It can fully handle vertical movements of the test vehicle when driving.

Furthermore, since the movable metal fitting does not always tend to lower due to its own weight, the hook position can always be set at the best position.

Therefore, it is possible to always keep the wires stretched horizontally, which is the most important thing when securing a vehicle with wires during vehicle tests.
This method has various excellent effects such as being able to measure the characteristics of a test vehicle with high precision.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing a vehicle securing device according to a first embodiment of the present invention, and FIG. 2 is a partially cutaway side view showing a vehicle securing device according to a first embodiment of the present invention. FIG. 3 is a partially cutaway enlarged view showing the same part as part A in FIG. 1 of the vehicle fixing device according to the second embodiment of the present invention, and FIG. A partially cutaway side view of the vehicle fixing device according to the third embodiment,
FIG. 5 is a partially cutaway side view showing a vehicle fixing device according to a fourth embodiment of the present invention, FIG. 6 is a perspective view showing a vehicle fixing device according to a fifth embodiment of the present invention, and FIG.
The figure is a side view showing a state in which a four-wheel drive vehicle is fixed using the vehicle fixing device according to the present invention, and FIG.
FIG. 9 is a partially cutaway side view showing a conventional screw type vehicle fixing device; FIG. 9 is a partially cutaway side view showing a conventional slide bearing type vehicle fixing device; 1 is a vehicle fixing device; 3 is a wire pole; , 5 is a moving bracket stop, 7 is a shock absorber, 8 is a hook, 9
is a moving fitting, 10 is a holder, 11 is a split block, 12 is a spring, 13 is a set screw, 20 is a balance weight, 21 is a pulley, 22 is a wire,
01 is the test vehicle, 02 is the roller, 03 is the manual winch, and 04 is the wire.

Claims (1)

[Claims for Utility Model Registration] 1. A test vehicle whose drive wheels are mounted on rollers connected to a chassis dynamometer is fixed via cables. A wire pole, a movable fitting provided on the wire pole so as to be movable in a vertical direction and rotatable, and a shock absorbing device fixed to the movable fitting and absorbing a shock in a direction perpendicular to the wire pole. A hook connected to the side of the cable opposite to the side connected to the test vehicle, and a height of the hook provided on the movable metal fitting and fixed to the movable metal fitting are set at an arbitrary position of the wire pole. A vehicle fixing device comprising a setting device. 2. A setting device for setting the height of the hook to an arbitrary position includes a cylindrical holder fixed to a movable fitting for moving the position of the hook, and a setting device provided within the holder in a direction perpendicular to the wire pole. The vehicle fixing device according to claim 1, which is a utility model, is comprised of a spring and a split block that presses the wire pole provided at one end of the spring. 3. A setting device for setting the height of the hook to an arbitrary position includes a cylindrical holder fixed to a moving bracket for moving the position of the hook, and a setting device provided on the holder in a direction perpendicular to the wire pole. The vehicle fixing device according to claim 1, which is comprised of a set screw and a split block provided at the tip of the set screw and presses the wire pole. 4. A setting device for setting the height of the hook to an arbitrary position includes a pulley provided at the tip of the wire pole, a wire with one end fixed to the movable fitting via the pulley, and the other end of the wire. A vehicle fixing device according to claim 1 of the utility model, comprising a balance weight fixedly suspended from the vehicle.