JPH031806Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a vehicle brake test device that can perform a brake test in an unmanned vehicle.

(Prior art) Conventionally, a vehicle production line has been provided with a vehicle running line for brake testing, in addition to a vehicle transport line on which vehicles are loaded and transported. 1977-
A brake tester such as that disclosed in Publication No. 105829 is installed, and when performing a brake test, a worker gets on each vehicle to be tested and brakes the vehicle along the vehicle travel line. The machine is driven to the location where the tester is installed and stopped there, and the wheels are placed on a brake tester and the wheels are driven to rotate by the brake tester. When the specified number of rotations is reached, the operator depresses the brake pedal. However, conventional brake tests are carried out with the vehicle manned, making it difficult to automate, and as workers get on and off the vehicle. However, there is a problem of inefficiency due to the time loss associated with the operation of the vehicle.

(Purpose of the invention) The present invention has been made in view of the above-mentioned problems, and its purpose is to prevent the unmanned vehicle from moving when the vehicle is unmanned, and during the transportation of the unmanned vehicle. An object of the present invention is to provide a vehicle brake test device that can automatically test the braking force acting on the vehicle.

(Structure of the invention) The feature of the invention is that a brake test point is provided in the middle of a vehicle conveyance line that continuously conveys vehicles by placing the left and right wheels of the vehicle, and the braking force acting on the wheels is applied to the brake test point. A brake tester for automatic inspection is provided, and a wheel on the side away from the wheel to be tested for braking in the vehicle transport direction is floated from the vehicle transport line during the braking force test, With this configuration, it is possible to automatically and continuously test the braking force of the wheels while the unmanned vehicle is being transported while the vehicle is unmanned. Since the braking force of the wheels can be inspected by allowing the vehicle to stay at the brake test location, the vehicle brake test can be performed without impairing the conveyance efficiency of the vehicle conveyance line.

(Example) An example of the vehicle brake test device according to the present invention will be described below based on the drawings.

In FIG. 1, reference numeral 1 denotes a vehicle conveyance line, and vehicles are conveyed while being placed on this vehicle conveyance line 1 at predetermined intervals. In Fig. 2, 4 indicates the drive motor of the slat conveyor 2, and 5 indicates the drive motor of the slat conveyor 3. In Figs. 1 and 2, the arrow A indicates the direction of the vehicle. Indicates the transport direction. A brake test location 6 is provided in the middle of this vehicle transport line 1, and a brake tester 7 is provided at the brake test location 7.

The brake test location 6 is provided here between the slat conveyor 2 and the slat conveyor 3, and FIG. 1 shows a state in which the front wheels 9 of the vehicle 8 are located at this brake test location 6. 10 is the rear wheel of the vehicle 8, and 11 is the brake pedal of the vehicle 8. here,
A pair of brake testers 7 are provided at a predetermined interval in the width direction of the vehicle, so that the braking force acting on the wheels on the right side of the vehicle and the braking force acting on the wheels on the left side of the vehicle can be tested separately. is being used.

The brake tester 7 has a pair of wheel driving rollers 12, as shown in FIGS. 3 to 5, and each of the pair of wheel driving rollers 12 is supported by a pair of bearings 13. It's summery. Inside the brake tester case 14 is a motor 1.
5 are provided, and wheel drive rollers 12 are provided.
The rotation transmission mechanism 16 includes a swing case 17, a worm gear 18, rotation transmission gears 19, 20, and a driving shaft 21.
The worm gear 18 is configured to mesh with the output shaft 22 of the motor 15.
It is designed to be rotationally driven by. Here, the pair of wheel drive rollers 12 are provided at intervals in the vehicle transport direction, and the wheel drive roller 12 on the front side in the vehicle transport direction is configured to be directly connected to the driving shaft 21. Sprocket 2 is installed on the driving shaft 21.
3 is provided on the sprocket 24 of the wheel drive roller 12 on the rear side in the vehicle transport direction, and a chain 25 is stretched between the sprockets 23 and 24 so that the pair of wheel drive rollers 12 move in the same direction. It is now being rotated. The wheel drive rollers 12 rotate the wheels so that the vehicle 8 moves forward in its transport direction, and are shown in FIG.
The direction of rotation of the front wheel 9 is indicated by an arrow B.

As shown in FIG. 4, the swinging case 17 is swingably supported by a bearing 26, and a connecting plate 28 constituting a part of the linkage mechanism is attached to the swinging support 27. The connecting plate 28 is connected to a swing lever 29, as shown in FIG. 5, and the base end of the swing lever 29 is swingably supported by a support portion 30. This swing lever 2
At the free end of the lever 9, there are provided a shock absorber 31 for alleviating the rocking impact during rocking, and a rocking force adjustment mechanism 32 for adjusting the rocking force of the rocking lever 29. The swinging lever 29 is provided with a rack mounting plate 33 at its free end, and a rack 34 constituting a part of the braking force range detection mechanism is provided upright on the rack mounting plate 33. The pinion 35 is configured to mesh with the pinion 35, the pinion 35 is rotated by the displacement of the rack 34 based on the displacement of the swing lever 29, and the braking force in the brake test is measured based on the rotational displacement of the pinion 35. It's summery.

In this brake tester 7, when a wheel rides on a wheel drive roller 12, its motor 15 is driven, and the vehicle 8 is provided with a brake pedal depression means (not shown). A cylinder device or the like can be used as this brake pedal depression means, and when the wheel reaches a predetermined rotation speed, this brake pedal depression means acts on the brake pedal 11 to apply braking force to the wheel. ing. The wheel drive roller 12 tries to stop rotating when braking force is applied to the wheel, and the rotation transmission mechanism 16 tries to rotate the wheel drive roller 12 against this, and as a result, the swing case 17 swings,
The swinging lever 29 swings accordingly to automatically inspect the braking force acting on the wheels.
Here, the brake tester 7 is of an existing configuration, and the brake tester 7 is
Once the inspection of the braking force acting on the wheel is completed,
The motor 15 is automatically turned off and remains off until the next wheel rides on the wheel drive roller 12.

When the wheel rides on the wheel drive rollers 12 of the brake tester 7, the part that is wedged between the pair of wheel drive rollers 12 becomes lower than the top surface of the slat conveyors 2 and 3. Here, a wheel lifting device 36 is provided at the brake test location 6, as shown enlarged in FIGS. 6 to 8. This wheel lifting device 36
is provided in a recess 37 and has a cylinder device 38, to the rod 39 of which a lifting member 40 is attached. This elevating member 40 is roughly composed of an elevating rod 41 and an elevating plate 42,
The lifting rod 41 is configured to extend in the width direction of the vehicle transport line 1, and the lifting plates 42 are attached to both ends of the lifting rod 41, and the lifting plates 42 are provided at intervals in the vehicle transport direction. It is located between a pair of wheel driving rollers 12 and faces the wheels from below, and when the braking force test of the wheels is completed and transportation of the vehicle 8 is resumed, the lifting member 40
The wheel is raised to lift the wheel, thereby eliminating a transport obstacle caused by the wheel being caught between the wheel drive rollers 12 when vehicle transport is resumed.

When the wheels are rotationally driven by the wheel drive rollers 12, the vehicle 8 swings in the vehicle longitudinal direction, vehicle width direction, and vehicle vertical direction. A rocking regulating means 43 that restricts the wheels being driven from shifting in the lateral direction due to rocking in the width direction, and prevents the wheels being driven from being pushed forward together with the vehicle 8. A swing regulating means 44 is provided. As shown in an enlarged view in FIG. 9, the swing regulating means 43 includes a cylinder device 45, a regulating roller 46, and brackets 47, 48.
is attached to the tip of the rod 49 of the cylinder device 45, and is configured to face the wheel from the side.The swing regulating means 44 is roughly composed of a support rod 50 and a regulation roller 51. This regulating roller 51 is attached to the tip of the support rod 50 so as to face the wheel from the front.
is attached to the rod 49 via a connecting plate 52, and is reciprocated by a cylinder device 45, and the brackets 47,
48 functions as a guide plate for reciprocating the support rod 50. Here, the operation of the cylinder device 45 is controlled by a control device 53, and this control device 53 has an optical sensor 54, and the optical sensor 54 is configured to face the wheel travel area. When the wheel rides on the wheel driving roller 12, the control device 53 controls the regulating roller 46,
The regulating rollers 46, 51 are advanced so that the rollers 51 face the wheel running area, and when the wheel braking force test is completed, the regulating rollers 46, 51 are retreated from the wheel running area, and the brake test is completed. This is done so that it does not get in the way when the vehicle is later transported, and the detailed structure of the regulating means is abstracted in FIGS. 6 to 8 to facilitate the explanation of the wheel lifting device.

Here, the slat conveyors 2 and 3 are assumed to be continuously driven by drive motors 4 and 5 without stopping the vehicle conveyance function, and as shown in FIG.
In FIG. 9, reference numerals 55 and 56 indicate rotation transmission mechanisms between the slat conveyors 2 and 3 and the drive motors 4 and 5. As shown in FIG. 2, the vehicle transport line 1 is provided with lift devices 57 and 58 midway in the vehicle transport direction. The lift devices 57 and 58 have a function of causing the wheels to be tested for braking to stay at the brake test location 6 together with the vehicle. Lift device 57 and lift device 5
8 are provided at a predetermined interval in the vehicle conveyance direction, the lift device 57 is provided on the side of the slat conveyor 2 with the brake tester installation location 6 as a border, and the lift device 58 is provided at the brake tester installation location 6.
It is provided on the side of the slat conveyor 3 with . Here, the lift device 57 is configured to have a function of lifting the rear wheel 10, which is separated from the front wheel 9 in the vehicle transport direction, from the slat conveyor 2 when the front wheel 9 is subject to a braking inspection.
The lift device 58 is configured to have the function of lifting the front wheel 9 away from the rear wheel 10 in the vehicle transport direction and the slat conveyor 3 when the rear wheel 10 is subject to a braking test.

Since the lift device 57 and the lift device 58 have substantially the same structure, only the structure of the lift device 57 will be explained below based on FIG. 10, and the structure of the lift device 58 will be explained below. The ratio will be calculated as follows.

The lift device 57, as shown in FIG. The cylinder device 60 is supported by an upright plate 59, and the tip end 63 of the rod 62 is attached to the lower part 6 of the vehicle body near the rear wheel 10.
The control device 61 has an optical sensor (not shown), which is provided so as to face the running area of the rear wheels 10, and the optical sensor 54 is configured to face the front wheels 9. The control device 61 is configured to detect the rear wheel 10 in response to the detection, and the control device 61 is configured to drive the cylinder device 60 simultaneously when an optical sensor (not shown) detects the rear wheel 10. At the same time as the rod is driven, the tip end 63 of the rod comes into contact with the lower part 64 of the vehicle body, thereby lifting the rear side of the vehicle upward.

Here, the cylinder device 60 is a control device 61
When a predetermined period of time has elapsed since the cylinder device 60 was driven, the vehicle 8 is stopped by a timer means, and when the cylinder device 60 is stopped, the rod 62 retreats downward. Then, the rear wheel 10 is placed on the slat conveyor 2, and conveyance is restarted.

(Effects of the invention) A feature of the invention is that a brake test point is provided in the middle of a vehicle transfer line that continuously transports vehicles by placing the left and right wheels of the vehicle, and the braking force acting on the wheels is applied to the brake test point. This is because a brake tester for automatic inspection is provided, and at the time of braking force inspection, the wheel on the side away from the wheel to be inspected for braking in the vehicle conveyance direction is floated from the vehicle conveyance line. , it is possible to automatically and continuously test the braking force of the wheels while the unmanned vehicle is being transported, reducing time loss caused by workers getting on and off, etc., and improving the efficiency of brake tests. In addition, the vehicle can stay at the brake test location and the braking force of the wheels can be inspected without stopping the transport function of the vehicle transport line, which improves the transport efficiency of the vehicle transport line. This has the effect that a vehicle brake test can be performed without damaging the vehicle.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a general configuration of a vehicle transfer line according to the present invention, Fig. 2 is a plan view showing a general configuration of a vehicle transfer line according to the present invention, and Fig. 3 is a schematic diagram of a brake tester according to the present invention. Rear view showing the configuration,
Figure 4 is a plan view showing the internal configuration of the brake tester according to the present invention, Figure 5 is a side view showing the internal configuration of the brake tester according to the present invention, and Figure 6 is a vehicle transportation of the brake test location according to the present invention. 7 is a plan view of the brake test location according to the present invention; FIG. 8 is a sectional view taken along line X-X in FIG. 7; FIG. The enlarged plan view of the brake test location shown in Figure 10 is as follows:
FIG. 3 is a sectional view taken along line Y-Y in FIG. 2; 1...Vehicle conveyance line, 1, 2...Slat conveyor, 6...Brake test location, 7...Brake tester, 8...Vehicle, 9...Front wheel, 10...
Rear wheel, 11... Brake pedal, 12... Wheel drive roller, 36... Wheel lifting device, 43, 44
... Swing control means, 45 ... Cylinder device, 4
6, 51...Regulation roller, 53...Control device, 5
4... Optical sensor, 57, 58... Lift device,
60... Cylinder device, 61... Control device, 62
...rod, 63...tip, 64...lower part of the car body.

Claims (1)

[Scope of Utility Model Registration Request] A vehicle transport line that continuously transports vehicles by placing the left and right wheels of the vehicle, a brake test point installed in the middle of the vehicle transport line, and a fixed installation at the brake test point. a brake tester that is equipped with a drive unit that rotates the wheels during a brake test and that automatically tests the braking force acting on the wheels; A brake test device for a vehicle, comprising: a wheel floating means for floating a wheel on a side farther away in a conveyance direction from the vehicle conveyance line during a braking inspection to stop conveyance of the vehicle.