CA1263859A - Vehicle automatic turning device - Google Patents
Vehicle automatic turning deviceInfo
- Publication number
- CA1263859A CA1263859A CA000506519A CA506519A CA1263859A CA 1263859 A CA1263859 A CA 1263859A CA 000506519 A CA000506519 A CA 000506519A CA 506519 A CA506519 A CA 506519A CA 1263859 A CA1263859 A CA 1263859A
- Authority
- CA
- Canada
- Prior art keywords
- vehicle
- wheels
- shaft
- support
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/14—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring
- B60S9/205—Power driven manoeuvring fittings, e.g. reciprocably driven steppers or rotatably driven cams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/14—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring
- B60S9/16—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring for operating only on one end of vehicle
- B60S9/18—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring for operating only on one end of vehicle mechanically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/14—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring
- B60S9/205—Power driven manoeuvring fittings, e.g. reciprocably driven steppers or rotatably driven cams
- B60S9/21—Power driven manoeuvring fittings, e.g. reciprocably driven steppers or rotatably driven cams comprising a rotatably driven auxiliary wheel or endless track, e.g. driven by ground wheel
- B60S9/215—Power driven manoeuvring fittings, e.g. reciprocably driven steppers or rotatably driven cams comprising a rotatably driven auxiliary wheel or endless track, e.g. driven by ground wheel driven by an auxiliary motor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Handcart (AREA)
Abstract
ABSTRACT
A motor vehicle lifting and turning apparatus that has three extendible and retractable lift devices mounted in a triangular arrangement on the under part of the vehicle to support the same in a stable condition during use. The lift devices each having a wheel on the lower end thereof with two of said device's wheels being reversibly and selectively driven by respective ones of a pair of electric speed reduction motors mounted on respective ones of the devices. The wheels are controllably lowered to lift the car whereafter wheel drive motors are actuated to rotate the car efectively about its central vertical axis or move the car laterally to one side or the other.
A motor vehicle lifting and turning apparatus that has three extendible and retractable lift devices mounted in a triangular arrangement on the under part of the vehicle to support the same in a stable condition during use. The lift devices each having a wheel on the lower end thereof with two of said device's wheels being reversibly and selectively driven by respective ones of a pair of electric speed reduction motors mounted on respective ones of the devices. The wheels are controllably lowered to lift the car whereafter wheel drive motors are actuated to rotate the car efectively about its central vertical axis or move the car laterally to one side or the other.
Description
~2Ei3~
VEHICLE AUTOMATIC T~RNING DEVICE
Technical Field The present invention relates to a vehicle lifting and turning device where devlces mounted under the vehicle have wheels that can be selectively lowered to support the vehicle on the ground and then move the vehicle by such wheels. The raised vehicle can be moved laterally or rotated to the left or right as desired by the vehicle operator.
Background Art In a conventional vehicle steering apparatus the front wheels of the vehicle are used to change the direction of the vehicle. The steering angle is limited because of space for the front wheels and the rate of change of angle is relatively small as such is designed for safe operation taking into account velocity. This makes it difficult to drive the vehicle into confined parking spaces.
Rotating the vehicle, or moving i-t laterally is impossible.
Japan Patent Publication No. 21689/67 (published October 25, 1967) discloses a construction where the vehicle body may be raised by a link and hydraullc mechanism disposed downwardly on the center of the body. In such construction there is link mechanism and hydraulic mechanism for raising the vehicle body, a gear driven turntable and hydraulic mechanism for operating the same. Such structure is complex, power intensive, bulky and heavy.
~4 Japan Patent Publication No. 30286~l96g (published December 6, 1969) discloses a vehicle hydraulic system for steering the vehicle wheels and clriving them.
Japan Paten-t Publication No. lO449/l969 (published May l5, 1965) di 5 C 1 OS es a vehicle transverse moving ancl tur-ning device that comprises a comple~ and complicated structure moun-ting auxiliary vehicle wheels that requires substantial power for lifting the vehicle.
Summary of Invention:
, .. . ... _ . .... . . .
An object of the present invention is to provide a device which may be us2d to turn the vehicle in its stopped state through and angle of 360 and may be used -to move the vehicle laterally and which overcomes the drawbacks of the prior art dis CUS5 ed above.
A principal object of the present invention is to provide a device which is of :Light weight, simplified structure and inexpensive to manufacture.
A fur-ther object of the present invention is to provide a -turniny device which can lift the vehicle body quickly upwarclly from the condition where the vehicle wheels on the yround to a position where the vehicle can be rotated in a minimum turning radius or moved transversely to the left or right.
In accordance with one aspect of the present invention three liftiny hydraulic cylinders are mounted ~:fà3~
on the underside portion of the vehicle and so positioned as to uniformly support, when in use, the vehicle weight.
The piston rod is non-rotatable in the hydraulic cylinder by being of rectangular or square shape and on the lower end portions of each of two of the piston rods is a wheel driven by an electric speed reduction motor and on the lower end portion of the remaining one of the piston rods is a freely rotatable wheel. Means are provided for selectively actuating the hydraulic cylinders and the electric motors.
In accordance with a further aspect oE the present invention the foregoing hydraulic cylinders are replaced by a device comprisIng a support member which attaches to the vehicle, a motor driven worm gear mounted on said support member, a helically grooved shaft threaded through said worm gear, a support case on the lower end of said shaft and movable only in a direction toward and away from said support member and means which in one state locks the worm gear to said shaft for rotation therewith while the shaft rotates relative to said support case and in the other state permits the worm gear to rotate relative to the shaft while such shaft is non-rotatable relative to the support case. Guide bars are located one on each of opposite sides of the helically grooved shaft such guide bars being attached to the support case and slidably mounted on the support member carrying the worm gear.
rief Description of the Drawings T~e invention is illustrated by way of example with reference to the accompanying drawings wherein:
Figure 1 is a perspective view illustrating one emodiment of a vehicle lift and turning mechanism provided in accordance with the present invention;
Figure 2 is an enlarged perspective view oE one of the lift and rolling mechanisms;
Figure 3 is a diagrammatlc top plan view of Figure 1;
Figure 4 is a combined hydraulic and electric circuit diagram of the device according to the present invention;
Figure 5 is an enlarged perspective view of another embodiment of the lift and rolling mechanism;
Figure 6 is an enlarged sectional view of Figure 5; and Figure 7 is an operating illustration according to the device of Figure 5 and Figure 6.
est Mode for Carrying out -the Invention To facilitate a better understanding of the device according to the present invention, those portions of the device illustrated from Figure 1 to Figure 4 will be briefly described.
Hydraulic cylinders 1, la and lb are fixed to the vehicle body 2, and piston rods 3, 3a and 3b are reciprocally and non-rotatively mounted in the hydraulic cylinders. To prevent rotation the piston rods are non-circular in cross-section, for example, of rectangular or square shape. The piston rods are prevented from rotating relative to the respective cylinders 1, la and lb, but allow relative lift.
~63~
Small wheels 5 and 5a, which are interlocked with the shaft of respective reduction motors (high-performance speed reduction motors) 4 and ~a are mounted on the lower end portion of two piston rods, i.e. 3 and 3a, and a freely rotatable wheel 5b is mounted on the lower end portion of piston rod 3b. Hydraulic hose 6 communicates with the upper end portion o-E the hydraulic cylinders 1, la and lb, and is supplied with oil pressure by solenoid 7 and hydraulic pump 8 causing the piston rods 3, 3a and 3b to be pushed downwardly. Hydraulic hose 9 communicates with the lower end portion of the hydraulic cylinders 1, la and lb, and is provided through the use of fluid pressure to cause the piston rods 3, 3a and 3b to be pushed upwardly.
Reference numeral 10 designates a motor (high-performance DC motor) which operates the hydraulic pump 8. Wiring of the high-performance DC motor 10 is connected to the battery of a so equipped vehicle. The control device is mounted on the side portion of the driver's seat of the vehicle and provided to be simply operated by the driver in the driver's seat.
The switches for the reduction motors 4 and 4a are variable switches that control the speed of the motors and also are reversing switches to change the polarity. The switches are arranged to be moved to the right side and the left side for corresponding directional movement of -the vehicle and to be rotated to the left and right. A suitable braking device (not shown) may be provided to counteract inertia effects in movement of the vehicle.
;3~S~
Above structures are provided on the assumption that the driver remains in the vehicle and are controlled from the driver's seat. The structures may, however, be safely operated, if so desired, by remote control. In this case, the devices are preferably adapted to be actuated only when the drive function of the vehicle is at rest.
The devices are concealed from view on the bottom part of the vehicle when not in use, i.e. the devices are in a retracted state. Actuation oE the switches cause the piston rods to project downwardly. A switch activates the battery operated motor 10 which drives the hydraulic motor 8 and then oil in the oil tank is supplied into the hydraulic cylinders 1, la and lb through the selector solenoid 7 and the hydraulic hose 6 and the piston rods 3, 3a and 3b within the hydraulic cylinders 1, la and lb are pressed downwardly. The wheels 5 and 5a engage the ground and the vehicle is lifted upwardly from the ground to a height of about 10 cm. In this condi-tion the reduction motors 4 and 4a are electrically operated to turn or shift the vehicle laterally as may be desired by the operator.
Each of the reduction motors 4 and 4a may be operated independently of each other or together. Accordingly, the vehicle is provided to be rotated at an angle of 360 or moved to the left and right sides from the operating position (in the constant height from the ground) by both operating directions.
The wheel 5b on the lower end portion of the piston rod 3b rolls freely during movement of the vehicle 3~g by driven wheels 5 and 5a. After the vehicle has been appropriately positioned the switches are actuated to retract the devices under the vehicle.
Figure 5 to Figure 7 illustrate another embodiment of -the present invention. In this embodiment a supporting member 11 is secured to the lower portion of the vehicle body 2 and a worm gear 13 on the central part of the supporting member 11, meshes with a helically ground shaft 12. The worm gear 13 meshes with a worm 15 of a motor 14 (high-performance DC reduction motor) which is mounted on the supporting member 11.
Reference numerals 16 and 16a designate guide bars which have the lower ends thereof secured to the upper surface of a supporting case 24 for a wheel 20.
A bevel gear 17 disposed on the lower end portion of the helical shaft 12, meshes with another bevel gear 18. Wheel 20 is driven by a chain 27, a chain gear 19 on the shaft of the bevel gear 18 and a chain gear 21 attached to the shaft of the wheel 20. A solenoid 33, on the upper side of ~the worm gear 13 has an operating bar 22a that is moved to project into a groove 23 on the helically grooved shaft 12 when the supporting member 11 is positioned at the upper end portion oE the shaf-t 12. By this means the worm gear 13 and the helical shaEt 12 can be selectively locked together to rotate in unison.
A freely rotatable wheel 25 on one of the lift units, has the same operation as the wheel 5b as shown in Figures 1 to Figure 4. A solenoid 26 attached to the supporting case 24 having a wheel 20 has a dog to selectively prevent rotation of the helical shaft 12. Under normal conditions, parts of the wheels 20 and 25 are risen to the bottom space portion of the body 2, and in necessary time, the reduction motor 14 of the supporting member 11 attached to the body 2 is driven and worm 15 of the reduction motor 14 is allowed to rotate worm gear 13 of the supporting member 11. Accordingly, the supporting member 11 is allowed to rise along the helical shaft 12 and the vehicle body
VEHICLE AUTOMATIC T~RNING DEVICE
Technical Field The present invention relates to a vehicle lifting and turning device where devlces mounted under the vehicle have wheels that can be selectively lowered to support the vehicle on the ground and then move the vehicle by such wheels. The raised vehicle can be moved laterally or rotated to the left or right as desired by the vehicle operator.
Background Art In a conventional vehicle steering apparatus the front wheels of the vehicle are used to change the direction of the vehicle. The steering angle is limited because of space for the front wheels and the rate of change of angle is relatively small as such is designed for safe operation taking into account velocity. This makes it difficult to drive the vehicle into confined parking spaces.
Rotating the vehicle, or moving i-t laterally is impossible.
Japan Patent Publication No. 21689/67 (published October 25, 1967) discloses a construction where the vehicle body may be raised by a link and hydraullc mechanism disposed downwardly on the center of the body. In such construction there is link mechanism and hydraulic mechanism for raising the vehicle body, a gear driven turntable and hydraulic mechanism for operating the same. Such structure is complex, power intensive, bulky and heavy.
~4 Japan Patent Publication No. 30286~l96g (published December 6, 1969) discloses a vehicle hydraulic system for steering the vehicle wheels and clriving them.
Japan Paten-t Publication No. lO449/l969 (published May l5, 1965) di 5 C 1 OS es a vehicle transverse moving ancl tur-ning device that comprises a comple~ and complicated structure moun-ting auxiliary vehicle wheels that requires substantial power for lifting the vehicle.
Summary of Invention:
, .. . ... _ . .... . . .
An object of the present invention is to provide a device which may be us2d to turn the vehicle in its stopped state through and angle of 360 and may be used -to move the vehicle laterally and which overcomes the drawbacks of the prior art dis CUS5 ed above.
A principal object of the present invention is to provide a device which is of :Light weight, simplified structure and inexpensive to manufacture.
A fur-ther object of the present invention is to provide a -turniny device which can lift the vehicle body quickly upwarclly from the condition where the vehicle wheels on the yround to a position where the vehicle can be rotated in a minimum turning radius or moved transversely to the left or right.
In accordance with one aspect of the present invention three liftiny hydraulic cylinders are mounted ~:fà3~
on the underside portion of the vehicle and so positioned as to uniformly support, when in use, the vehicle weight.
The piston rod is non-rotatable in the hydraulic cylinder by being of rectangular or square shape and on the lower end portions of each of two of the piston rods is a wheel driven by an electric speed reduction motor and on the lower end portion of the remaining one of the piston rods is a freely rotatable wheel. Means are provided for selectively actuating the hydraulic cylinders and the electric motors.
In accordance with a further aspect oE the present invention the foregoing hydraulic cylinders are replaced by a device comprisIng a support member which attaches to the vehicle, a motor driven worm gear mounted on said support member, a helically grooved shaft threaded through said worm gear, a support case on the lower end of said shaft and movable only in a direction toward and away from said support member and means which in one state locks the worm gear to said shaft for rotation therewith while the shaft rotates relative to said support case and in the other state permits the worm gear to rotate relative to the shaft while such shaft is non-rotatable relative to the support case. Guide bars are located one on each of opposite sides of the helically grooved shaft such guide bars being attached to the support case and slidably mounted on the support member carrying the worm gear.
rief Description of the Drawings T~e invention is illustrated by way of example with reference to the accompanying drawings wherein:
Figure 1 is a perspective view illustrating one emodiment of a vehicle lift and turning mechanism provided in accordance with the present invention;
Figure 2 is an enlarged perspective view oE one of the lift and rolling mechanisms;
Figure 3 is a diagrammatlc top plan view of Figure 1;
Figure 4 is a combined hydraulic and electric circuit diagram of the device according to the present invention;
Figure 5 is an enlarged perspective view of another embodiment of the lift and rolling mechanism;
Figure 6 is an enlarged sectional view of Figure 5; and Figure 7 is an operating illustration according to the device of Figure 5 and Figure 6.
est Mode for Carrying out -the Invention To facilitate a better understanding of the device according to the present invention, those portions of the device illustrated from Figure 1 to Figure 4 will be briefly described.
Hydraulic cylinders 1, la and lb are fixed to the vehicle body 2, and piston rods 3, 3a and 3b are reciprocally and non-rotatively mounted in the hydraulic cylinders. To prevent rotation the piston rods are non-circular in cross-section, for example, of rectangular or square shape. The piston rods are prevented from rotating relative to the respective cylinders 1, la and lb, but allow relative lift.
~63~
Small wheels 5 and 5a, which are interlocked with the shaft of respective reduction motors (high-performance speed reduction motors) 4 and ~a are mounted on the lower end portion of two piston rods, i.e. 3 and 3a, and a freely rotatable wheel 5b is mounted on the lower end portion of piston rod 3b. Hydraulic hose 6 communicates with the upper end portion o-E the hydraulic cylinders 1, la and lb, and is supplied with oil pressure by solenoid 7 and hydraulic pump 8 causing the piston rods 3, 3a and 3b to be pushed downwardly. Hydraulic hose 9 communicates with the lower end portion of the hydraulic cylinders 1, la and lb, and is provided through the use of fluid pressure to cause the piston rods 3, 3a and 3b to be pushed upwardly.
Reference numeral 10 designates a motor (high-performance DC motor) which operates the hydraulic pump 8. Wiring of the high-performance DC motor 10 is connected to the battery of a so equipped vehicle. The control device is mounted on the side portion of the driver's seat of the vehicle and provided to be simply operated by the driver in the driver's seat.
The switches for the reduction motors 4 and 4a are variable switches that control the speed of the motors and also are reversing switches to change the polarity. The switches are arranged to be moved to the right side and the left side for corresponding directional movement of -the vehicle and to be rotated to the left and right. A suitable braking device (not shown) may be provided to counteract inertia effects in movement of the vehicle.
;3~S~
Above structures are provided on the assumption that the driver remains in the vehicle and are controlled from the driver's seat. The structures may, however, be safely operated, if so desired, by remote control. In this case, the devices are preferably adapted to be actuated only when the drive function of the vehicle is at rest.
The devices are concealed from view on the bottom part of the vehicle when not in use, i.e. the devices are in a retracted state. Actuation oE the switches cause the piston rods to project downwardly. A switch activates the battery operated motor 10 which drives the hydraulic motor 8 and then oil in the oil tank is supplied into the hydraulic cylinders 1, la and lb through the selector solenoid 7 and the hydraulic hose 6 and the piston rods 3, 3a and 3b within the hydraulic cylinders 1, la and lb are pressed downwardly. The wheels 5 and 5a engage the ground and the vehicle is lifted upwardly from the ground to a height of about 10 cm. In this condi-tion the reduction motors 4 and 4a are electrically operated to turn or shift the vehicle laterally as may be desired by the operator.
Each of the reduction motors 4 and 4a may be operated independently of each other or together. Accordingly, the vehicle is provided to be rotated at an angle of 360 or moved to the left and right sides from the operating position (in the constant height from the ground) by both operating directions.
The wheel 5b on the lower end portion of the piston rod 3b rolls freely during movement of the vehicle 3~g by driven wheels 5 and 5a. After the vehicle has been appropriately positioned the switches are actuated to retract the devices under the vehicle.
Figure 5 to Figure 7 illustrate another embodiment of -the present invention. In this embodiment a supporting member 11 is secured to the lower portion of the vehicle body 2 and a worm gear 13 on the central part of the supporting member 11, meshes with a helically ground shaft 12. The worm gear 13 meshes with a worm 15 of a motor 14 (high-performance DC reduction motor) which is mounted on the supporting member 11.
Reference numerals 16 and 16a designate guide bars which have the lower ends thereof secured to the upper surface of a supporting case 24 for a wheel 20.
A bevel gear 17 disposed on the lower end portion of the helical shaft 12, meshes with another bevel gear 18. Wheel 20 is driven by a chain 27, a chain gear 19 on the shaft of the bevel gear 18 and a chain gear 21 attached to the shaft of the wheel 20. A solenoid 33, on the upper side of ~the worm gear 13 has an operating bar 22a that is moved to project into a groove 23 on the helically grooved shaft 12 when the supporting member 11 is positioned at the upper end portion oE the shaf-t 12. By this means the worm gear 13 and the helical shaEt 12 can be selectively locked together to rotate in unison.
A freely rotatable wheel 25 on one of the lift units, has the same operation as the wheel 5b as shown in Figures 1 to Figure 4. A solenoid 26 attached to the supporting case 24 having a wheel 20 has a dog to selectively prevent rotation of the helical shaft 12. Under normal conditions, parts of the wheels 20 and 25 are risen to the bottom space portion of the body 2, and in necessary time, the reduction motor 14 of the supporting member 11 attached to the body 2 is driven and worm 15 of the reduction motor 14 is allowed to rotate worm gear 13 of the supporting member 11. Accordingly, the supporting member 11 is allowed to rise along the helical shaft 12 and the vehicle body
2 with the supporting member 11 allowed to rise to the constant height (for example, the position which the wheel of the body 2 is risen to about 10 cm from the earth surface).
When the vehiGle body 2 has risen to the required height, operating rod 22a of the solenoid 22 on the upper side of the worm gear 13 is automatically allowed to fit in -the groove 23 on the upper side of the helical shaft 12. By such operation, the worm gear 13 and the helical shaft 12 rotate in unison as they are driven by the reduction motor 14, and at this time, the solenoid 26, which has surpressed rotation of the helical shaft 12, is actuated simultaneously allowing the shaft 12 to rotate freely. When the helical shaft 12 is rotated, bevel gear 17 on the lower end portion of the shaft 12 is also rotated driving bevel gear 18. Through the chain 27 and chaln gears 19 and 21 wheel 20 is driven to rotate. By such operation the vehicle body 2 can be transversly moved or rotated to the position desired.
;3~
After the vehicle body 2 has been raised and moved in the desired direction, the solenoids 22 and 26 are actuated preventing rotation of shaft 12 and permitting rotation of worm gear 15 on such shaft. In such state, the reduction motor 14 of the supporting member 11 is reversely driven and the operation is carried out in reverse direction of above operation to retract the wheels 20 under the vehicle.
The device of the present invention is of light and simple construction. The hydraulic cylinder devices are suitable for vehicles of heavy weight, i.e. mid-sized passenger cars and up. The helical shaft devices are appropriate for vehicles of light weight or small passenger cars. Accordingly, by use of the device according to the present invention vehicles can be moved into parking spaces which are difficult or impossible to drive into. In addition to transferring the direction of the vehicles the devices are useful in changing flat tires or moving the vehicle that might be mired in a depression.
The above described devices are so located as to have substantially uniform load distributlon of the vehicle so that the vehicle is in a stable state when suppcrted by such devices.
While the present invention has been described with reference to specific embodiments thereof, it wlll be understood that numerous modifications may be made by those skilled in the art without actually departing from the scope of the claimed invention. Accordingly, all modifications and equivalents may be resorted to which fall within the scope of the invention as claimed.
When the vehiGle body 2 has risen to the required height, operating rod 22a of the solenoid 22 on the upper side of the worm gear 13 is automatically allowed to fit in -the groove 23 on the upper side of the helical shaft 12. By such operation, the worm gear 13 and the helical shaft 12 rotate in unison as they are driven by the reduction motor 14, and at this time, the solenoid 26, which has surpressed rotation of the helical shaft 12, is actuated simultaneously allowing the shaft 12 to rotate freely. When the helical shaft 12 is rotated, bevel gear 17 on the lower end portion of the shaft 12 is also rotated driving bevel gear 18. Through the chain 27 and chaln gears 19 and 21 wheel 20 is driven to rotate. By such operation the vehicle body 2 can be transversly moved or rotated to the position desired.
;3~
After the vehicle body 2 has been raised and moved in the desired direction, the solenoids 22 and 26 are actuated preventing rotation of shaft 12 and permitting rotation of worm gear 15 on such shaft. In such state, the reduction motor 14 of the supporting member 11 is reversely driven and the operation is carried out in reverse direction of above operation to retract the wheels 20 under the vehicle.
The device of the present invention is of light and simple construction. The hydraulic cylinder devices are suitable for vehicles of heavy weight, i.e. mid-sized passenger cars and up. The helical shaft devices are appropriate for vehicles of light weight or small passenger cars. Accordingly, by use of the device according to the present invention vehicles can be moved into parking spaces which are difficult or impossible to drive into. In addition to transferring the direction of the vehicles the devices are useful in changing flat tires or moving the vehicle that might be mired in a depression.
The above described devices are so located as to have substantially uniform load distributlon of the vehicle so that the vehicle is in a stable state when suppcrted by such devices.
While the present invention has been described with reference to specific embodiments thereof, it wlll be understood that numerous modifications may be made by those skilled in the art without actually departing from the scope of the claimed invention. Accordingly, all modifications and equivalents may be resorted to which fall within the scope of the invention as claimed.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A motor vehicle lifting and turning apparatus comprising three extendible and retractable lift devices mounted in a triangular arrangement on the under part of the vehicle to support the same in a stable condition during use, said lift devices each having a wheel on the lower end thereof with two of said device's wheels being reversibly and selectively driven by respective ones of a pair of electric speed reduction motors mounted on respective ones of the devices.
2. The apparatus of claim 1 wherein said devices having the power driven wheels are located respectivley under the front and rear part of the vehicle in the vicinity of one side thereof and wherein said third device is located under the central part of the vehicle in the vicinity of the opposite side of the vehicle.
3. The apparatus of claim 2 wherein said power driven wheels are mounted to rotate about an axis disposed lengthwise of the vehicle.
4. The apparatus of claims 1, 2 or 3 wherein each of said lift devices comprise a hydraulic cylinder, mounted on the vehicle, a piston rod reciprocally mounted in said cylinder and extending downwardly therefrom with the wheel mounted on the lower end thereof and means preventing rotation of said piston rod with respect to the cylinder.
5. The apparatus of claims 1, 2 or 3 wherein each of said lift devices comprise a support member secured to the vehicle, a motor driven worm gear mounted on said support member and having a downwardly directed helically grooved shaft threaded through the central part of said gear, a wheel carried by a support case on the lower end of said shaft, said support case being movable only in a direction up and down respectively toward and away from said support member through rotation of said shaft and means selectively operable to in one state permit said worm gear to rotate on said shaft while the later is held non-rotatively on the support case and in another state cause said worm gear and shaft to rotate in unison while the later rotates on said support case.
6. The apparatus of claims 1, 2 or 3 including switch means in the vehicle for selective operation by the driver of the vehicle to extend and retract the lift devices and which in the extended position support the vehicle on the wheels thereof and selective operation of the electric motors to rotate the vehicle clockwise or counterclockwise or move the vehicle laterally as may be desired.
7. A vehicle lifting and turning device comprising:
three hydraulic cylinders mounted within the lower space portion of the vehicle body in a triangular arrangement to selectively provide a three point generally equally divided load support for the vehicle, a piston rod reciprocally and non-rotatively mounted in respective ones of the hydraulic cylinders, a wheel on the lower end portions of the piston rods two of which wheels are selectively driven by speed reduction electric motors mounted on the lower end of the respective piston rods.
three hydraulic cylinders mounted within the lower space portion of the vehicle body in a triangular arrangement to selectively provide a three point generally equally divided load support for the vehicle, a piston rod reciprocally and non-rotatively mounted in respective ones of the hydraulic cylinders, a wheel on the lower end portions of the piston rods two of which wheels are selectively driven by speed reduction electric motors mounted on the lower end of the respective piston rods.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2746/1985 | 1985-04-13 | ||
| KR1019850002476A KR880000562B1 (en) | 1985-04-13 | 1985-04-13 | Automatic turning device in a vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1263859A true CA1263859A (en) | 1989-12-12 |
Family
ID=19240490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000506519A Expired CA1263859A (en) | 1985-04-13 | 1986-04-11 | Vehicle automatic turning device |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS6378852A (en) |
| KR (1) | KR880000562B1 (en) |
| CA (1) | CA1263859A (en) |
| DE (1) | DE3612617A1 (en) |
| FR (1) | FR2580244A1 (en) |
| GB (1) | GB2175553B (en) |
| IT (1) | IT1190568B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0278943B1 (en) * | 1987-02-12 | 1992-06-03 | Sabro Limited | Manoeuvring device for trailers |
| ES2007605A6 (en) * | 1987-04-10 | 1989-07-01 | Marcilla Vazquez Jose Antonio | System for lateral displacement of motor vehicles. |
| GB8711919D0 (en) * | 1987-05-20 | 1987-06-24 | Huang C T | Automobile horizontal driving device |
| DE3808415A1 (en) * | 1988-03-14 | 1989-09-28 | Mayer Heinz | Parking devices for motor vehicles |
| DE8903108U1 (en) * | 1989-03-14 | 1989-10-05 | Kohlhoff, Edgar, 3205 Bockenem | Caravan or trailer with drive for forward and reverse assist |
| WO1992006871A1 (en) * | 1990-10-22 | 1992-04-30 | Jung, Ji, Sub | Automobile capable of turning its body in any arbitrary angular direction |
| GB2285418B (en) * | 1994-01-06 | 1997-11-05 | Kuo Jenn Lai | Mechanism for manoeuvring a wheeled vehicle |
| US5884720A (en) * | 1996-02-26 | 1999-03-23 | Jacob Ackerman | Parking device for vehicles |
| CN102514554A (en) * | 2011-12-22 | 2012-06-27 | 李凤桐 | Lateral displacement and pivot steering system of automobile |
| KR101317334B1 (en) * | 2012-02-23 | 2013-10-11 | 부경대학교 산학협력단 | Self-Turn Arounding Automotive Car |
| RU2489282C2 (en) * | 2012-05-22 | 2013-08-10 | Владимир Алексеевич Небольсин | Automotive parking device |
| ITUB20153335A1 (en) * | 2015-09-01 | 2017-03-01 | Giovanni Pettinato | AUXILIARY HANDLING DEVICE FOR A LAND VEHICLE |
| CN106364466A (en) * | 2016-10-20 | 2017-02-01 | 惠州市埃德加科技有限公司 | Car |
| CN107284424A (en) * | 2017-05-25 | 2017-10-24 | 矫振国 | A kind of motor-vehicle chassis |
| CN111469815B (en) * | 2020-04-08 | 2021-09-14 | 苏州君洹自动化设备有限公司 | Side parking auxiliary device suitable for high chassis vehicle |
| CN112092783B (en) * | 2020-11-09 | 2021-02-05 | 烟台汽车工程职业学院 | Auxiliary driving equipment mounted on vehicle chassis and used for improving driving force |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB415481A (en) * | 1934-01-05 | 1934-08-30 | Stanley Berman | Improvements in and relating to motor vehicles and in lifting and moving devices therefor |
| US2692143A (en) * | 1951-08-13 | 1954-10-19 | James J Rando | Vehicle parking means |
| US2872991A (en) * | 1957-04-08 | 1959-02-10 | Rawlings H Collins | Parking structure for automotive vehicles |
| FR1463912A (en) * | 1965-10-13 | 1966-07-22 | Device for lifting and lateral walking, in particular for motor vehicles | |
| JPS5231137B2 (en) * | 1972-11-15 | 1977-08-12 | ||
| JPS6013045B2 (en) * | 1978-09-27 | 1985-04-04 | 株式会社日立製作所 | Hardening processing method for carbon steel parts |
| ES485000A1 (en) * | 1978-11-03 | 1980-04-16 | Martin Ruiz Jose | Vehicle autoelevator and lateral displacer system. |
| GB2148216A (en) * | 1983-10-18 | 1985-05-30 | Robin Arthur Jenkinson | Hydraulic jacking device with driven wheel |
| IL70130A0 (en) * | 1983-11-03 | 1984-02-29 | Itshak Isaac Marom | Lifting and maneuvering device for motor vehicles |
-
1985
- 1985-04-13 KR KR1019850002476A patent/KR880000562B1/en not_active IP Right Cessation
- 1985-09-10 JP JP60201471A patent/JPS6378852A/en active Pending
-
1986
- 1986-04-11 CA CA000506519A patent/CA1263859A/en not_active Expired
- 1986-04-11 GB GB8608794A patent/GB2175553B/en not_active Expired
- 1986-04-11 IT IT67293/86A patent/IT1190568B/en active
- 1986-04-14 FR FR8605306A patent/FR2580244A1/en active Pending
- 1986-04-15 DE DE19863612617 patent/DE3612617A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2580244A1 (en) | 1986-10-17 |
| KR860008056A (en) | 1986-11-12 |
| IT1190568B (en) | 1988-02-16 |
| KR880000562B1 (en) | 1988-04-15 |
| GB8608794D0 (en) | 1986-05-14 |
| JPS6378852A (en) | 1988-04-08 |
| DE3612617A1 (en) | 1987-10-22 |
| IT8667293A1 (en) | 1987-10-11 |
| GB2175553B (en) | 1989-06-21 |
| IT8667293A0 (en) | 1986-04-11 |
| GB2175553A (en) | 1986-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |