JP3169662B2 - Plate type composite testing machine for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a testing machine for inspecting vehicle performance of an automobile, and also serves as a test for wheel braking, side slip, etc. and a wheel load meter. The present invention relates to a composite testing machine that enables a test under the same grounding conditions as described above.

[0002]

2. Description of the Related Art Conventionally, wheel brakes are tested.
As disclosed in Japanese Unexamined Patent Application Publication No. 62-297736, a test machine that allows a test vehicle to be tested under the same ground contact conditions as a general road is a flat plate-shaped tester as shown in FIG. A plate 62 is provided at a corresponding position of the four wheels of the test vehicle, and there is a brake test device 60 on which the wheels are mounted so as to be mountable. In the brake testing device 60, two plates for front wheels and two plates for rear wheels mounted on a frame 67 at a fixed position are connected to a connecting arm 66 formed in a link shape, respectively. The arm 66 is connected to the central shaft 64 via a bearing 65. By operating the cylinder device 63 fixed to the frame 67, the central shaft 64
Finally swings the plate 62 and simultaneously operates it in the F direction. At this time, the load change transmitted from the wheels mounted via the plate 62 is
Here, a load cell disposed below the plate 62 (not shown) is made to detect the brake performance of the front wheel and the rear wheel so that it can be tested. The present invention is a single-function type plate brake tester. It is known.

[0003] Further, there is a test machine of this type having a side slip amount detector, which is used as an apparatus for measuring the alignment of wheels of an automobile, and is disclosed in Japanese Patent Application Laid-Open No. 59-1984.
-114162 No.
That is, as shown in FIG. 8, two support plates 72 arranged in the center distribution with respect to the measurement reference straight line H so that the two wheels of the front wheel or the rear wheel can be mounted on the rail 71 so that they can move in opposite directions. On the upper side, they are connected to each other by a connector 75 so that the movement amounts are equal. The support plate 7
2, a wheel guide member 73 for automatically aligning the side of the wheel of the test vehicle with a side portion therebetween, and a lower side wheel on which a side slip detector 77 for detecting a moving amount during a side slip test are disposed. There is an alignment device 70. Then, after the test, the wheel is mounted on the support plate 72 and then automatically aligned to determine the measurement reference straight line H.
A wheel is released from one of the wheel guide members 73 alternately, and a side slip amount of the released wheel is detected at that time. Thus, a single-function type side slip detection tester is known. . Similarly, there are test machines that measure performance tests of other wheels in a single function.

[0004]

However, in the prior art of the vehicle measuring machine, a large number of those in which the supporting portion for mounting the wheel is formed in a roller shape. Occasionally, the support plate is sometimes placed on the support plate, but an operation of restraining the wheel has been added as shown in FIG. The roller-type vehicle testing machine,
Since the manner in which the wheels contact the rollers is different from the case in which the wheels contact the road during traveling, the test conditions are different from the general traveling conditions. Measurement under such conditions involves an error between the test value of the tester and the true value of the original vehicle running performance. For this reason, attempts have been made to reduce the error as much as possible, but this is not a fundamental solution unless the structure of the wheel and the test wheel support is changed. Accordingly, the applicant of the present application has disclosed in
An early proposal of a test machine having test conditions close to the vehicle running conditions was made. However, this proposal is a single-function type testing machine. In recent years, it has been possible to save space at test plants, perform multiple tests with the increase in the number of vehicles to be tested, and to request efficient work execution, secure and easy work, etc. However, there has been no tester capable of performing a composite test proposed in combination with the improvement of the test technique.

SUMMARY OF THE INVENTION In view of the drawbacks of the prior art, the object of the present invention is to improve the performance required by the recent test work, to measure brake performance as a dynamic test, to measure wheel load as a static test, and to intermediate the results. Measurement of the wheel-slip amount of the unconstrained type of wheel, and continuous measurement in which other required measurement items can be multiplied simply by placing the wheel on the tester once, and the vehicle running conditions It is an object of the present invention to provide a composite testing machine which has improved testing conditions close to the above.

[0006]

The present invention is the same as the conventional invention in that a portion on which the wheels of the test vehicle are mounted is provided in the form of a flat plate. However, as shown in FIG.
A slide rail 1 on which the inspection means 2 is movably mounted.
6 and the driving means 1 for enabling the inspection means 2 to move back and forth, and the inspection means 2 allows the right and left wheels 50 of the vehicle to be individually mounted, and
The right and left supporting devices 20 and 20 that have a contact surface with a flat plate and that can move left and right along the guide rail 31;
Connecting arms 33R, 33L for connecting one end of a link mechanism 34, which rotates symmetrically about a central axis 35, to the time-carrying devices 20, 20 so that the supporting devices are respectively movable in left and right opposite directions; A load plate 22 disposed on the carrying device to detect a stress generated during a loading test, and a maximum slip distance between the right and left wheels placed on the carrying device to determine a side slip amount, Side slip detector 4 connected in the moving direction along the guide rail of the above-mentioned supporting device
(See FIGS. 3 and 4), and the side slip detector has a detection arm attached to the outside of the holding device, and is movably connected to an end of the detection arm. the one end of the center point of the connecting arm to the shaft and formed in an inverted U-shape, to penetrate the contacts of alarm means to the U-shaped section, before
A side slip amount equal to or greater than a predetermined amount can be detected by the detection arm and a contact of the alarm means .

The other end of the connecting arm is connected to the side
Link to the detection unit of the slip detector and detect the amount of movement
Is adjustable so that it can be expanded and taken out
It is characterized by the following. Further, the link mechanism 34 is provided with a restoring device 38 which allows the carrying device to be restored to its initial position after removing the load.
In addition, a gauge plate 40 capable of setting an initial rotation position of the link mechanism is additionally provided. Further, the carrying device 20, the side slip detector 4, and the restoring device 38 can be disposed in one-to-one correspondence, and the carrying device 20 can stop the movement of the carrying device 20. , Detachable locking means 4
4L and 44R are provided.
Then, the inspection means 2 and the driving means 1 are combined into one set, and the one set is disposed at a corresponding position corresponding to a front wheel 50a and a rear wheel 50b of the vehicle, respectively. Is what you do. Here, the side slip detector 4, the equalizer 34, the restoring device 38, the lock means 44, and the alarm means 47 described above.
The combination of the configurations, the determination of the mounting position, the selective use of them, etc. may be appropriately selected and determined as an embodiment of the present invention, as long as there is no danger in their arrangement. Can be done.

In the present invention, claim 1 is shown in FIG.
Claim 2 is shown in FIGS. 1, 3 and 4, and claims 3 and 4.
, Claim 6 in FIG. 3, claim 5 in FIG. 4, and claim 7 in FIG. 5, respectively.

[0009]

According to the technical means, the vehicle is not moved to the testing machine for each single function test as in the prior art, but the driving means 1 is operated as shown in FIG. To test the braking performance,
The amount of side slip can be measured, and the load can be measured. As a result, a combined test can be performed in one place, and the test site can be saved in space, efficient land use can be performed, the moving distance of the test vehicle can be shortened, its flow line can be simplified, and the test time can be reduced. Becomes
The driving means 1 and the inspection means 2 are defined as one set,
Since the front and rear wheels 50 can be measured simultaneously as one set of equations, the test operation at the test site can be further efficiently performed even during congestion. Furthermore, since the mounting surface of the supporting device of the testing machine of the present invention is formed by a plate on a flat plate, the test conditions can be approximated to the general running condition, and the reliability can be increased in the obtained detection value. This greatly improves the performance of this type of testing machine.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be illustratively described in detail below with reference to the drawings. However, unless otherwise specified, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention thereto, but are merely illustrative examples. It's just FIG. 1 is a plan view of an embodiment showing a basic structure and an entire structure of the present invention. The inspection means 2 held by a frame 30 is movably mounted on two parallel laid slide rails 16. A driving device 11 and a driving force adjusting device 12 capable of adjusting the driving force of the driving device 11 so that the inspection means 2 on the slide rail 16 can be moved back and forth.
Is provided, the inspection means 2 is provided with the support device 20 on which the left and right wheels 50 of the vehicle can be individually mounted, and the support device 20 is provided on the upper portion of the frame 30. A connecting arm 33 guided by the parallel guide rails 31 and capable of moving to the left and right, the load plate 22 disposed on the carrying device 20 for detecting a stress generated during a loading test, and the carrying device 20 And a side slip detector 4 connected in the direction of movement of the timer device 20 along the guide rail 31 in order to detect the maximum distance between the treads of the left and right wheels mounted on the vehicle and determine the amount of side slip. It is configured. Each test value obtained from this configuration is displayed on the display 54 via the controller 5. The support device 20 includes, from top to bottom, a flat top plate 21 serving as a grounding member of the wheel 50, the load plate 22 having a detection plate slightly protruding on an upper surface thereof, a rubber plate as a cushioning material, and the gantry. 24 as a basic structure. The load plate 22 is made of an existing product, and is capable of detecting a stress generated in a multi-dimensional direction mainly using a load cell (not shown) (manufactured by Bridgestone Corporation: trade name “Ultra Thin Multi Force”). Sensors "). The driving force adjusting device 12 can rotate the threaded shaft 14 which is freely rotatably fixed to the steady rest 15 through the pulleys 13M and 13S by using the driving force of the driving device 11 by an electric motor as shown in the figure. In addition, the shaft 14 is screwed inside the bearing 49 with a screw fixed to the main part of the frame 30 of the inspection means 2, and as a result, the The rotation of the shaft 14 allows the frame 30 to move back and forth on the slide rail 16. The driving means 1 may be replaced with other known electric means, hydraulic means, or the like, in addition to the above-described method.

FIG. 2 is a side view showing the structure of the main part. As shown here, a wheel 32 is attached to the lower part of the frame 30 so as to be movable along the slide rail 16, and At the lower part of the device 20, the roller receiver 26 and the roller receiver 2 are arranged in accordance with the guide rail 31.
The roller 25 movably disposed on the guide rail 6
Each of them is arranged so as to be movable on a race 29 provided with a shrink-fitted surface and having a small and low friction coefficient, which is provided at a main portion in the groove. Then, the two guide rails 3 protrude downward from the support device 20 and
A retainer that operates while being in contact with one side surface is rotatably provided, and is configured to be able to hold a posture during the movement of the carrier device 20. In addition, the supporting device 20 is provided with the wheels 5.
A link mechanism (hereinafter, referred to as an equalizer) 34 provided with a spring-based restoring device 38, which is capable of restoring to its initial position after removing the loading load due to zero.
Is disposed so as to be rotatable about a pin (central axis) 35, and the equalizer 34 is connected to one end of a link mechanism 34 that rotates symmetrically about the pin (central axis) 35 and the time-sharing device 20. The space is connected by connecting arms 33L and 33R, respectively.
The carrying devices 20 can be moved evenly in the left and right opposite directions, in other words, the moving amount of the carrying device 20 can be balanced, and the moving state can be transmitted to the adjacent side slip detector 4. The side slip detector 4 has a detector structure using a known potentiometer.

FIG. 3 is a plan view showing a main part of another embodiment of the present invention. As shown in FIG. 3, the equalizer 34 can be set to its initial position as required by a dial type. A configuration in which a gauge plate 40 is provided can be adopted.
FIG. 6 is an elevation explanatory view of the side slip value. As shown in FIG. 6, the side slip detector 4 detects a maximum tread interval T of the left and right wheels 50 during a test, as shown in FIG. As a safety measure, an alarm means 47 constituted by a contact-type switch is additionally provided as a safety measure so that detection of a slip amount equal to or more than a predetermined amount can be dealt with. The side slip detector 4 shown in FIG. 3 is of a type in which a detection arm 41 is attached to the outside of the holding device 20 and is disposed. A connecting arm 42 movably connected to an end of the detection arm 41. Has one end formed in an inverted U-shape with the center point 35 as an axis, and
The contact 47a of the step 47 is made to enter, and the
The id-slip amount is configured to be detectable, and the other end is linked to the detection unit of the side-slip detector 4 so as to be adjustable so that the detected movement amount can be enlarged and taken out. The side slip amount refers to the amount of side slip of the tire that occurs when the vehicle is running at a normal speed / km. Value 1000
Multiply by the unit of m / km. In FIG. 6,
The side slip amount is represented by TC = 2e, and the numerical value is said to be within 5 mm per 1 m of unit length in an automobile.
The support device 20 has a lock handle 45 at one end, at the lower part of which the movement of the support device 20 can be stopped appropriately.
A locking means 44 capable of detachably engaging with the carrier device 20 by means of a locking member 44R and a locking member 44L for locking the rod 43 provided at a key point thereof.
Is arranged.

FIG. 4 is a plan view showing a main part of another embodiment of the present invention. As shown in FIG.
Instead, the side slip detector 4 and its shaft 49 are provided between the holding device 20 and the mounting plate 37A, and the spring restoring device 3 is provided between the holding device 20 and the mounting plate 37B.
8 can be arranged in one-to-one correspondence.
In the configuration in this case, the left and right detectors 4 individually detect the amount of movement of the carrier device 20 directly without an intermediate link mechanism. 5 is numerically processed.

FIG. 5 is a plan view showing an embodiment of a set of two sets of the present invention, wherein the inspection means 2 and the drive means 1 having the above-described structure are combined into one set. As shown in FIG. 5, the distance E between the centers of the tread devices 20aL and 20bL corresponds to the front wheels 50a and the rear wheels 50b of the vehicle.
Is set to be equal to the distance between the wheel bases of the vehicle. In order to measure vehicles having different wheel-base distances, the center distance E can be changed according to the wheel-base distance of the vehicle by applying any known technique. Said 1
Each of the formulas is arranged to constitute two sets of test machines. Here, the testers of the present invention having two sets of one set are not necessarily required to be unified with an electric system controller or display (not shown) attached thereto. Depending on the requirements, they may be combined into a single panel, or may be collectively provided so that they can be reconfigured so that they can be simultaneously tested in one operation.

Next, the operation of the present invention will be described. In the brake test, the wheels 50 of the test vehicle mounted on the carrier device 20 are free to rotate, and the driving means 1
, In other words, at a moderate speed, a movement for moving the entire inspection means 2 back and forth. Next, when the brake of the vehicle is operated, a reaction force corresponding to the braking force is applied to the load plate 2 of the support device 20.
2, the reaction force is converted into an electric signal by the structure of the load plate 22, and this signal is
Are sent to the controller 5 via the signal line 53 for processing, and are displayed as detected values on the display 54 via the signal line 53.

In the side slip test, a reference tread interval C relating to a test vehicle is checked in advance, the inspection means 2 is set at a zero point, and the support device 2 is set.
0, the wheel 50 of the vehicle is mounted. At that time, a side slip amount inherent in the vehicle 50 and expressed at that time is generated, and the amount is generated and converted by the side slip detector 4 via the carrier device 20 as a movement amount. As in the case of the brake test, the signal is sent to the controller 5 via the signal line 52 for processing.
The measurement of the wheel load is performed using the load plate 22 as it is as a wheel load meter. Here, the locking means 44 is mainly operated as a safety means when the device of the present invention is not used, when the holding device 20 is restrained. The test time of the composite testing machine of the present invention is simply calculated to be 50% or less of that of the single-function testing machine. Further, in the composite testing machine having the above-mentioned two sets of one set of the present invention, a shorter test time is possible,
Since the moving operation of the test item during the test operation is not necessary at all, and is performed on the plate, the test value can be obtained to further improve the reliability, thereby increasing the overall capacity of the testing machine. The effect of improving can be improved.

[0017]

As described above, according to the present invention, 1
Securing of composite test means that can be used as brakes, side slips, and wheel load meters at locations, and the use of the testing machine of the present invention reduces the effect of creating extra room on the test site and reduces test preparation work. Thereby, while improving and improving a better test work environment, and by the above-mentioned test, it is possible to collect data under conditions in which test values are closer to those during ordinary driving, and to improve the reliability of test values. Having a variety of remarkable effects, it is possible to provide a plate-type composite tester only for the present invention, and its practical value is extremely large.

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of the entire configuration of the present invention.

FIG. 2 is a side view showing a main structure.

FIG. 3 is a plan view showing a main part of another embodiment of the present invention.

FIG. 4 is a plan view showing a main part of another embodiment of the present invention.

FIG. 5 is a plan view showing an embodiment of a configuration of two sets of one embodiment of the present invention.

FIG. 6 is an elevation explanatory diagram of a side slip value.

FIG. 7 is a plan view showing a prior art of a plate type testing machine.

FIG. 8 is a plan view showing a prior art of a side slip tester.

[Explanation of symbols]

1 drive means 11 drive device 1
4 Threaded shaft 16 Slide rail 2 Inspection means 2
0 Carrying device 20L Carrying device for left wheel 20R Carrying device for right wheel 21 Top plate 22 Load plate 24 Mount 25 Roller 2
8 Retainer 30 Frame 31 Guide rail 3
3 Connecting arm 34 Link mechanism (equalizer) 35 Center point
37 Mounting plate 38 Restoring device 4 Side slip detector 40
Dial gauge plate 41 Detection arm 43 Rod 44 Locking means 47 Alarm means 49 Threaded bearing 5 Controller 50 Car wheel 54 Indicator 60 Brake test device 61 Rail 62 Plate 63 Cylinder device 66 Connecting arm 70 Wheel alignment device 72 Support plate 74 Slip plate 77 Side slip amount detector a Front wheel code b Rear wheel code C Tread distance D Wheel advancing direction F Swing direction L Left device code R Right device code P Load Q Centering direction S Centrifugal direction E Wheelbase

Claims (7)

(57) [Claims] 1. A test device for mounting wheels of a vehicle on an inspection means and inspecting the performance of the vehicle via the wheels, wherein a slide rail for movably mounting the inspection means and the inspection means are moved back and forth. The inspection means is capable of individually mounting left and right wheels of the vehicle, and has a flat contact surface with the wheels, and moves left and right along a guide rail. Left and right carrying devices, and a connecting arm that connects one end of a link mechanism that pivots symmetrically about a central axis and the time-bearing device, and that enables the carrying devices to move in left and right opposite directions, respectively. A load plate disposed on the carrying device to detect a stress generated during a loading test, and a maximum slip distance between the right and left wheels placed on the carrying device to obtain a side slip amount. The gear of the bearer And a side slip detector connected in the movement direction along the guide rail, and the side slip detector has a detection arm attached to the outside of the carrier device, and is provided at an end of the detection arm. to form the one end the center point of the connecting arm movably connected to the shaft in an inverted U-shape to penetrate the contacts of alarm means to said U-shaped portion, the detection
A plate type composite testing machine for a vehicle, wherein a side slip amount equal to or greater than a predetermined amount can be detected by a contact of an arm for use and an alarm means . 2. The other end of the connecting arm is linked to a detecting unit of the side slip detector, and is configured to be adjustable so that the detected moving amount can be expanded and taken out. Item 4. A composite plate testing machine for a vehicle according to Item 1. 3. The vehicle plate-type composite testing machine according to claim 1, wherein the link mechanism is provided with a restoring device that allows the carrying device to be restored to its initial position after the loading load is removed. 4. The vehicle plate-type composite testing machine according to claim 3, wherein the link mechanism is provided with a gauge plate capable of setting a rotation initial position of the link mechanism. 5. The plate type composite testing machine for a vehicle according to claim 3, wherein the supporting device, the side slip detector, and the restoring device are disposed in one-to-one correspondence. 6. The plate type composite testing machine for a vehicle according to claim 1, wherein said supporting device is provided with a detachable locking means for enabling a stop of movement of said supporting device. 7. The vehicle according to claim 1, wherein said inspection means and said driving means are combined into one set, and said one set is juxtaposed at corresponding positions corresponding to front wheels and rear wheels of said vehicle. Plate type composite testing machine.