US1803942A - Chock - Google Patents

Description

. Patented May 5, 1931 UiTED encon Original application led .Tune 9, 1925, Sera1'No. 36,019. Divided and this application led- February 24,

- 1926. Serial No.y 90,399.

This invention relates to chocks and is a division of my copending application Serial Nol"36,019, filed June 9, 1925.

An important object of the invention 1s 5 .to provide a Anovel form of chock particularly adapted for use in connection with vehicle supporting rails such as are shown I in my copending application above identlfied and also shown in my copending appli- 1o cation Serial No. 7 6,856 tiled December' 21st,

A. further object is to provide a chock having means for supporting it on a vehicle rail, the chock being adapted to-be swung 15 outwardly from the rail to permit a vehicle to be driven upon and to leave the rails.

A further Objectis to provide a chock of y the above mentioned vcharacter provided with means for limiting the swinging move- 2.oment`of the chockoutwardly from the rail.

A further object is to provide a "chock having means carriedf by avehicle rail for supporting the chock thereon, the supporting means being adapted to, slide longitudinally of the rail to permit the chock to be arranged in any desired position thereon. E

Other objects and advantages of the invention will becomeappare'nt during the course ofthe following description.

the drawings I have shown one embodiment of the invention. In this show- 4 ing: Y

' Figure 1 is a perspective view 'of a vehicle lift and turn table showing the invention applied,

Figure 2 is a fragmentary plan view of al vehicle rail showing the invention applied, Figure Sis 'a detail section on line 3 3 of FigureQ,

40 Figure 4 is a .similar view showing the.

chock in inoperative position,

Figure 5 is a section on line 5-5 of Figure 2, and, l v

Figure 6 is a detail perspective of the chock.

, (not shown) is provided for introducingf fluid under pressure into the interior of the cylinder to elevate the piston. Supportingv arms 11 are )carried by the upper end of the piston, and the ends of the arms diverge outwardly substantially radially of the piston and are adaptedto support vehicle rails, 12. `The surface ofthe earth or other support upon which the apparatus is arranged,

is provided with a circular depression 13 in 1and upstanding flanges 14. In the use of the apparatus, as describedin my copending applications, a vehicle may be driven upon 7o the rails 12A while the latter are in lowered( position, whereupon the piston 10 may be elevated to permit Work to be performed beneath the vehicle,v such as oiling the springs, etc. The piston `10 is rotatable 75 within the cylinder referred to whereby the upper structure maybe' rotated to serve as a turn table.- -lVhen a vehicle is arranged on the rails, and it isA desired to rotate the rails or elevate them, it is obviously des'irable to provide some means for preventing y movement of the vehicle` longitudinally of the rails. Accordingly, I provide a chock designated as a whole by the numeral 15 adapted to be arranged on either or both of the rails 12. The chock comprises a block of. relatively heavy metal, 'preferably stamped steel, and includes an upper portion 16 intermediate its ends, arranged above and parallel to the base 13 of one of 90 the rails. At one side of the horizontal portion 16, the block is provided with a downwardly inclined endl? which is adapted to engage one of. the wheels of a vehicle in a manner to be described. The opposite-end 95 of the block is turned downwardly substantially at right angles tothe intermediate portion 16, as shown at 18. The horizontal portion 16 is'provided with preferably integral laterally extending fingers 19, and

each of the fingers is provided with loops 2O at its end for a purpose to be described.

A stop lug 21 is formed integral with and stamped from the metal of the block preferably between the fingers 19, as clearly shown in Figure 6.

Referring to 'Figure 6, the numeral 21 designates a supporting member for vthe block preferably formed of stamped steel or the like. The supporting member is substantially v`inverted V-shaped having innerand outer arms 22 and-23 adapted to embrace one of the flanges 14 of the rail, as clearly shown in Figures 2 and 4. The support is provided with an integral lip 24 my copcnding applications above identified.

When it is desired to lift a vehicle to permit Work to be performed thereunder, the vehicle is driven on the rails 12 with the chock normally in the position shown in Figure V4, the rails being clear throughout their length. When the device is in proper position the blocks are swung inwardly to the position 'shown in Figure. 3,. whereupon the supports 21 are adapted to Slide to permit the blocks to be brought into contact with the vehicle wheels. It is only necessary to use the chocks on one of the rails but it will be obvious that they may be employed with both rails, if desired. The inclined portions 17 are arranged in contact with the vehicle wheels, as willbe apparent. The stop member 21 is adapted to engage the outer face of the support to limit the downward movement of the block when in inoperative position, as shown yin Figure 4.

` After the chocksarerarranged in operative position it will be apparent that the piston l0 may be elevated and rotated freely, the vehicle being prevented from moving lon itudinally along the rails by the choc s. After the apparatus has been lowered and it is desired to drive the vehicle from the rails, the chocks may be slid inwardly a :futlicientdistance to permit the inclined portions 17 to clear the wheels, whereupon the blocks may be swung outwardly to the position shown in Figure 4. I When the block is. in operative position the lower edges of the inclined portion 17 and the vertical portion 18 contact with the upper face of the base of the rail to effectually support the block as will be apparent.

It is to be understood that the form of the `invention herewith shown and described is to be' taken as a preferred example of the size and arrangement of parts may be rel sorted to without departing from the spirit of the invention or the scope of the subjoined claims. v

I claim: v

1. A chock for use with a rail having a horizontal base portion and a vertical edge flange, said chock comprising a substantially inverted V-shaped supporting member adapted toffslidably receive the edge flange of the rail, and an integral block pivotal-ly connected at one kedge to saidsupporting unember, sa1d block havmg one vertical wall adapted to contact at its lower edge with the base portion of the rail and an inclined wall adapted`V to contact with a wheel of a vehicle.

.of the r'ail, the opposite end of said block being inclined and adapted to contact with a wheel of a-vehicle, and a hinge connecting said supporting member' with the horizontal portion of said block.

3. A device constructed. in accordance with claim'2 provided with means for limiting the turning movement of said block about said hinoe. i

4. A chock for use with a rail having a base portion and a vertical edge flange, said chock comprising a substantially inverted V-shaped supporting member adapted to slidably receive the edge flange of the rail, a

and a hinge connecting said block and said supporting member to permit the former Y block adapted to be arranged on said base,

5. A .chock for use with a vehicle sup# porting rail having a substantially horizontal base and an upstandingflange, said chock comprising a block for obstructing the rail to limit movement of a vehicle wheel thereon, a support slidably carried by the upstanding flange of the rail, and a pivotal connection between the block and support permittin the block to be moved laterally of the rail into obstructing position upon the base of the rail and out of obstructing position free from the base of the rail.

In testimony whereof I affix my signature.

. PETER J. LUNATI.

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