US1591680A - Carrier-operated jack and truck - Google Patents

Description

my s, 1926. 1,591,680

L. PENGIL| Y CARRIER OPERATED JACK AND TRUCK original Filed May 9. 1924 @wgmm ATTO R N EY Patented July 6, 1926. i

UNITED I STATESV PATENT OFFICE.

LEWIS PENGILLY, OF LOS ANGELES, CALIFORNIA.

l CARRIER-OPERATED JACK ANI) TRUCK.

Application led 'May 9, 1924, Serial No. 712,150. Renewed December 14, 1925.

This invention relates to improvements in attachments for motor vehicles, my main object being to provide a device, permanently mounted at the rear end of anautomobile, by means of which the rear end may not only be raised clear of the ground,l but may be moved laterally any desired distance.

Another object is to provide driving means for the device which is operated from the main Idrive or propeller shaft, and which is so arranoed that while the device is in op eration the car-wheels cannot be driven, and vice versa.

The entire operation is arranged to be controlled from the drivers scat, without any physical exertion on the part of the driver being necessary other than the manipulation of a single lever.

The main purpose of my device is to permit of easy parking of a car in limited spaces, as between two other cars parked parallel to a street-curb. At present it is -necessary to spend considerable time and strength to work a car into and out of such spaces, frequently interfering with trai-lie on t e street and possibly bumping one car or another, .as is well known to those who drive cars and have had.V occasion to park their cars under the above recited conditions.

With my attachment, it is only necessary to drive the car in at an angle to the curb, and with the front end as close to the same as possible and in the proper longitudinal position with respect to the car ahead, and cause the attachment to be operated in such a manner that the rearend of the car will be very quickly brought to ,the desired location adjacent the curb, without any backward and forward maneuvering of the car, or constant turning of the front wheels, being necessary.

My 4device therefore fills I believe a long felt need, in providing for simpler and uickei` parking, and consequent expediting t e movement-of tratlic generally.

At the same. time, the device may be used for ordinary jacking-up purposes, as when tires are to be changed andthe like.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views:

8 of the rear wheels 4 of the car,

Fig. 1 is a rear end view of the attachment as applied to the rear end of an automobile. Fig. 2 is a longitudinal section of the device, together with thev driving mechanism thereforr Fig. 3 is a fragmentary plan section of the driving mechanism on the line 3-3 of Fig. 2. l

Fig. 4 is a detached section of a worm and sprocket wheel unit, showing the independent drive shafts thereof.

Referring now more particularly to the characters of reference on the drawings; the numeral 1 denotes the main supporting frame of the device, preferably forming the back plate of a housing 2 which is connected to or formed integral with the axle-housings The housing 2 contains not only the usual differential axle-drive mechanism, but certain parts of the drivingmechanism of my device, as will be vseen hereinafter.

Vertically spaced lugs 5 project rearward- -ly from the frame or` plate 1`, which form bearings for screw 6, secured against vertical movement. Movable along the screw between the bearings is a block 7 having op-` posed pins 8 disposed in a plane longitudinally of the car and passing through horizontal slots 9 in the upper ends of arms 10. The arms are pivoted intermediate their ends on the frame 1 adjacent the lower end thereof and' transversely of the screw G. The lower ends of these arms carry small wheels or rollers 11. The above described cooperating parts are so arranged that when the block 7 is adjacent the upper end of the screw, the rollers 11 will be engaged with the ground and the wheels 4 clear of the ground a certain distance. lVhen the block 7 is adjacent the lower end of the screw, the reverse setting of the wheels 4 and rollers 11 relative to each other obtains, as will be evident.

The screw is rotated, so as to raise and llower the roller carrying arms, by the fol- 20 projecting through the front. of the shiftedl by ordinary means, such as a fork 18 engaging 'a collar 19 provided with the gear, and mounted in connection with a ro housing and there connected for longitudinal movement to a control lever 21 suitably located in the drivers compartment of the can To cause the rollers 11 to rota-te so as to `move the entire rear end of the car transversely when the wheels 4t are clear of the ground, I provide chains 22 passing about sprocket wheels 23 connected to the rollers and also about other sprockets 241 arranged concentric with the pivotal `arcs of the arms 10. These latter sprockets are driven in common by a single chain 25 passing about a drive sprocket 26 mounted on a shaft 27 turnable in and projecting `beyond the shaft 14 at both ends.

A gear 28, the same size-as the gear 15, is mounted on the inner end of the shaft 27 and is adapted tp be enmeshed with the gear 16 only when the latter is thrown out vof mesh with thelgear 15.

To prevent the propeller Ishaft 17 from driving the car when either shaft 14 or 27 necessary to first reverse the propeller shaft is being driven, said propeller shaft has an extension 29 at its rear end and independent thereof, said extension carrying the usual driving bevel gear 30. The extension at its end adjacent the shaft 17 has an internal gear 31 fixed thereon, to receive the sliding gear 16 therein in driving relation, at which time the latter'is clear of both gear 15 and gear 28. It will therefore be seen that with vthis arrangement, only one of the three driving means can be effective at one time, thereby avoiding possible accident and eliminating the necessity of any very expert handling on the part of the operator.

To reverse the shafts 14 and 27, it is only 16, by means of the ordinary gear-shaft reversing means, this shaft being kept in constant rotation, preferably in low gear all the time the. attachment is in operation.

' ceive the block 7. Thus when the block 7 arrives at either end ofthescrew itis automatically disconnected from the threads, and the raising or lowering of.. the arms 1() at once ceases, irrespective of the continued driving ofthe screw.

Once the car is liftedby thejack, itl may be shoved transversely by hand and without mobiles comprisingl the application of, power to do so, since when of the device, still in practice such deviations from such detail may be resorted to'as do" -rear wheels to clear the same, said means be ling drivenfrom the main drive shaft of the rear wheels, similarly driven means for rotating the roller, and means whereby the shaft will be positively disconnected from the' rear wheels when,the arm is being moved and the roller rotated.

2. A jaclrand truck structure for automobiles including an arm mounted. thereon between the rearwlieels thereof, a roller on the lower end of .said arm disposed in a plane at right angles to the wheels, and normally clear of the ground, means for lowering said arm to the ground to cause the rear wheels to clear the same, means foi' then driving the roller, said means being driven from the main drive shaft of the rear wheels,A similarly driven means for rotating the roller, and -means whereby the shaft will be automatic-ally disconnected from the rear wheels when the arm is being moved and the roller rotated, and the arm will be disconnected from the driving means when the roller is being rotated, and vice versa.

3. A jack and truck structure for autoarms mounted trans: versely of the ve iicle between the rear wheels thereof, rollers at the lower ends of the arms adapted to be engaged with the ground and disposed in a plane at ri ht angles to the rear wheels, a shaft, means e tween said shaft and arms for raising and lowering" the arms with the rotation of the shaft, another shaft connected in drivin relation with the first named shaft, rive means for the rollers, and means for alternately placing said roller-drive means and the second named shaft into driving relation with the main drive shaft of the vehicle.

4:. A jack and truck structure for automobiles com rising arms `mounted transversely of t e vehicle between the rear' i wheels thereof, rollers atl the lower ends of ing. said main shaft ,from the rearwheels.

5. A' jack Aand truck structure, for automobiles comprisin arms mounted transversely -of `the ve gicle between the rearl wheels thereof, rollers at the lower ends of the arms adapted to be engaged with the ground and disposed in a lane at right 'angles to the rear wheels, a s aft, means betweenfsaid shaft and arms yfor raising 'and lowering the arms with the rotation of -the shaft, a second shaft connected in driving relation with the first named shaft, V'a third shaft connectedin driving relation with the rollers, gears on said second and third shafts, and aslidin gear on the lmain drive shaft -of lthe vehic e valternately engageable with f the first named gears.

6. A jack andA truck structure for automobiles comprising arms mounted transversely of the vehicle between the' rear wheels thereof, rollers atA the lower ends of the arms adapted to be engagedkwi'th, the

' ground and disposed in,y a plane4 at'ri ht angles to the rear wheels, a shaft, means etween said shaft and arms for raising and llowering the arms with the rotation of the shaft, a second shaft connected in drivin relation with the rstnamed shaft, ay third shaft connected in driving relation with the rollers,gears on said second and third shafts, a sliding gear on the `main rear wheel driveshaft for the vehicle alternately engageable with the first named gears, and means whereby when the sliding gear is engaged with either of the other gears the drive to the rear wheels froinsaid' drive shaft will .be broken. f i Y A jack andtruck structure for automobiles comprising arms mounted trans- .versely nf the vehicle between the rear wheels thereomllers at the lower ends of tlie arms adaptedto be engaged with the 7 4ground and disposed vin a plane` at right angles to the rear/wheels, a shaft, means between 'saidv shaft and arms for raising and ldwering the arm/s with the rotation of the shaft a sec'ond shaft connectedinl driving relation w/lth the first named shaft, a third sltaft connected/ in drivingA relation with the rdllei's,'gears on saidsecond and third shafts, agsliding 'gear on thel main rear wheel drivesli'aft of the vehicle alternately engageable with the rstnamed gears, said dri/ve'shaft being broken between thet sliding ear, and

the driving connectionl ofsaidis aft -with the wheels, and means whereby when theisliding gear is moved rearwardly beyond the first named gears the 4drivingconnection between the drive-shaft sections will be established. 8. A jack and truck structure for automobiles comprising 'arms mounted ,transversely of the vehicle between the rear wheels thereof, rollers at the lower ends of the arms adapted ltobe engaged with the ground and vdisposed in a plane at right angles to the rear wheels, a shaft, means between said shaft and arms for raising and lowering the arms with the rotation of the shaft, a second shaft connected in driving relation with the first named shaft,.a third shaft connected in driving relation with the rollers, gearson said second and third shafts, asliding gear on the main rear wheel driveshaft of the vehicle alternately engageable with the first named gears, said drive shaft belingi broken between `the sliding gear and te the wheels, andan internal frear on the rear section of the drive shaft, the sliding gear engaging the internal gear when moved rear- Wardly` of .the first vnamed gears.

In testimony whereof I affix my signature.

riving connection of said shaft with.

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l LEwis PENGILLY.

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