US2788199A - Power picking and lifting apparatus with tilting - Google Patents

Description

April 9, 1957 o. B. ANKERSHEIL POWER PICKING AND LIFTING APPARATUS WITH TILTING Filed Jail. 27. 1954 United States Patent POWER PICKING AND LIFTING APPARATUS WITH TILTlN G Otto B. Ankersheil, Marston, M0. Application January 27, 1954, Serial No. 406,433 6 Claims. (Cl. 262-8) This invention relates to picking and lifting apparatus, and more particularly to power picking and lifting apparatus manipulatable to establish the angle of attack and penetration of the picking and lifting member provided by the apparatus and which also incorporates a tilting or swivel feature wherein the apparatus is operative to pick material along a bank as well as along the floor of the bank or fiat surface.

This application constitutes a continuation-in-part of my co-pending application, Serial No. 385,087 filed October 9, 1953.

In the prior application referred to above, I have dis closed apparatus equipped with a power-actuated member operative to penetrate or to be inserted under an article or object prior to the lifting or breaking away thereof of the object from the ground, etc., and in such apparatus the angle of insertion of the pick member or penetrating member is selectively controlled. In the present application, I will describe an improvement on this structure.

An object of the invention is to provide apparatus for picking and lifting objects and in which means are provided for manipulating the pick member to enable the apparatus to operate both on a flat, horizontal surface and also on a vertical surface and wherein the angle of insertion or penetration of the pick member is controllable. Another object is to equip a truck, tractor or bulldozer, and the like, with power-driven, lift-picking apparatus, the lift-pick member being vertically movable and also horizontally swingable, whereby the apparatus can operate along a horizontal or vertical surface. Yet another object is to provide apparatus of the character described above wherein fluid pressure-operated members enable the lift-pick member to be manipulated and wherein power apparatus permits the lift-pick member to be swung horizontally so that the apparatus may be used selectively along vertical or horizontal surfaces. A further object of the invention is to provide lift-pick apparatus adapted to be mounted upon a vehicle such as a truck, bulldozer, etc., and which is power-actuated, and is manipulatable to swing the pick member provided by the apparatus between generally vertical and generally horizontal planes, the lifting and picking member of the apparatus being controlled so that the angle of penetration of this member can be preselected and changed at an .operators will. Additional objects and advantages will appear as the specification proceeds.

An embodiment of the invention is illustrated in the accompanying drawing, in which Figure l is a broken side view in elevation of a bulldozer having the apparatus of my invention mounted thereon and in which part of such apparatus is illustrated in section; Figure 2 is a front view in elevation of the apparatus and in which the dotted lines illustrate a position at which the apparatus may be angularly swung; and Figure 3 is a perspective view of the apparatus.

My lift-pick apparatus is adapted to be secured to a vehicle. .While any'vehicle might provide an appropriate mounting therefor, I prefer to mount the apparatus on a bulldozer such as the one partially indicated in Figure l and which is designated generally by the numeral 10. Any buldozer of customary design may be employed, and since bulldozers are well known in the art, a showing thereof and description in detail will not be set out other than to remark that the bulldozer 10 may be equipped with the customary endless treads 11 mounted upon appropriate sprockets or drive wheels 12.

Rigidly secured to a pair of spaced mounting members 13 provided by the bulldozer by means of bolts and nuts 14, are a pair of outwardlyand downwardly-angled frame members 15 and 16. At their inner upper ends, the frame members 15 are rigidly secured to a hub 17 that is provided with a bore 18 therethrough in which is mounted a stub shaft 19. The shaft 19 may be held rigidly Within the hub 17 or may be rotatable therein depending upon the particular construction desired.

In the illustration given, the shaft 1? has rigidly secured thereto a gear member 20 having an annular flange 21 provided interiorly thereof with teeth 22 adapted to mesh with a drive gear 23 secured to a shaft 24 which may be rotatably driven by any suitable means and, for example, may be powered by a take-off from the engine or transmission of the bulldozer 10. A cover member 25 secured to the hub 17 provides an opening 26 therein through which the shaft 24 extends. A pin 27 and thrust bearing 28 may be provided adjacent the end of the shaft 19 to permit free rotation of the gear member 20 in the event that it is rotatably mounted upon the shaft 19.

Rigidly carried upon the outer surface of the gear flange 21 are a pair of upwardly-extending support members 29 having at their upper ends an arcuate support bed 30. The members 30 each receive therein the cylinder 31 that is equipped with the usual piston reciprocated within the cylinder by the application. of a pressure fluid thereto. Each of the pistons within the cylinders is provided with an outwardly-extending piston rod 32 that carries at its outer end a bearing 33 that rotatab'ly receives therein the end portion 34 of a link member 35 having at its opposite end a bearing 36 that in turn pivotally receives therein the end portion of a link 37 that is pivotally connected to the lift-pick member 33 by means of the stub shaft or rod 39 which is pivotally received within the bearing members 40 provided respectively at the end of links 37.

As is clear from the drawings, the lift-pick member 38 is generally L-shaped and has a point portion 41 that may be formed integrally with the remaining portion of the member 38 or, if desired, may be removable. In either event, the point or pick portion 41 may be specially treated or hardened so that it will not be quickly worn out in operation of the apparatus. If the point is removable, a plurality of points may be provided and one selected that best fits the requirements of the particular material being worked at any time. A removable point will also serve the purpose of permitting the points to be reconditioned when necessary.

Intermediate the ends of the member 38, a bore 42 is provided therethrough that receives a shaft 43 and which is secured to the member 38 by the locking members 44. The shaft 43 is pivotally carried within the bearing or coupling members 45 with which the ends of the piston rods 46 are equipped. The rods 46 form a part of the pistons which are reciprocated by the application of pressure fluid within the cylinders 47 rigidly carried by the channel members 48.

. The channel members 48 are vertically oriented and provide elongated slots or recesses 49 therein that slidably receive the rollers or bearings 50 carried'at the ends of the shaft 43. Each of the channel members 48 may be rigidly secured adjacent the lower ends thereof by welding or by bolts, etc. to the support frame members 51 which extend upwardly and rearwardly and are rigidly secured to the outer surface of the gear member 2Q. As is best seen in Figure 3, the frame support members 51 may have a brace 52 extending there-between to add rigidity to the entire structure.

if desired, the conduits or flexible tubes indicated generallyby the numeral 53 that are necessary to actuate the pistons within the cylinders 31 and 47, may extend through a support ring 54 carried by brace 55 secured to the bulldozer. Figure 3 shows the cylinder Slit-equipped with a pair of fittings 56 to which'the fluid pressure supply conduits may be secured.

Operation In operation -of the apparatus, it will be found that it is frequently desirable to insert the lift-pick member 33 under an object that is to be lifted as, for example, a concrete slab, or to insert the member between rock strata to achieve a separation of the layers thereof. Regardless of what the object is, if it is atan. elevation slightly above the surface of the ground, the power cylinders 47 are actuated in the appropriate direction to raise or lower the member '33 so that the generally horizontal point .41 thereof will engage the object at the desired point. The hulldozer lll may then be moved forwardly so that the point 41 moves into or under, etc. the object. Thereafter the cylinders 47 may be again actuated to raise the member 38 and this, it will be appreciated, will serve to lift the object received and supported upon the point 41.

Rather than directly lifting an object under which the point ill of the lift-pick member is inserted, it may be necessary to rock or pry the object to break it loose from its surroundings. This may be accomplished by actuating the power cylinders 31, which will then move the upper end of the lift-pick member 38 forwardly or rearwardly, as desired, and since the member 48 is pivotally mounted about the axis or shaft 43, the member will be moved progressively through various angular positions as, for example, the one illustrated by broken lines in Figure l.

t may at times be necessary to move the forward portion or point 41 of the member 38 into the ground, and this may be accomplished by seating the angular position of the member 325 to the required position and thereafter moving the bulldozer forwardly, which will bring about a penetration of the member 3% into the ground.

it is apparent that the apparatus may be manipulated through an infinitenumber of angular positions and at the same time raised and lowered so that the lift-pick member 38 can be inserted into the ground or can be slid into or under whatever objects it may be desired to lift or'tilt, etc., .and at the same time the member 33 may be moved vertically through an infinite number of positions within the range of verticle movement provided.

Further, the member 3% may be swung from the generaily verticle positions illustrated in Figures 1 and 3, through an infinite number of angular horizontal positions such as the one indicated by the phantom lines in Figure 2. Such movement is accomplished by rotating the shaft 24, which will bring about rotation of the drive gear 23,

gear member 2ft, and the lift-pick apparatus carried therer The same maneuvers previously described may be carried out when the lift-pick member is swung into a horizontal position, thatis to say, the member 38 may be moved longitudinally within the guide channels 4h, it may be pivoted about the axis or shaft 4-3, and the bulldozer, or other vehicle upon whichit is mounted, may be moved forwardly or rearwardly as might be required. Therefore, this apparatus may be effectively used for working along the generally vertical Walls of a channel as well as along the generally horizontal walls thereof. The apparatusis not only useful for operations performed above the ground, but also has extensive application within mines, etc., where it may be required to break rock strata, etc., from both a horizontal and vertical surface.

Whilein the foregoing specification, anembodiment of the invention has been set forth in considerable detail for purposes of illustration, it will be apparent to those skilled in the art that consilerable deviation may be made in these details without departing from the spirit and principles of the invention.

1 claim:

1. A lift-pick apparatus, comprising a vehicle, a frame rigidly secured to said vehicle, a hub rigidly secured to said frame, a gear member supported by said hub for rotational movement relative thereto, a pair of spaced apart channels carried by said gear. member, a shaft carried by said channels for both pivotal and verticle movement with respect thereto, a generally L-shaped, lift-pick member carried by said shaft, power cylinderssupported by said channels and being operatively arranged with said shaft for moving the same in vertical directions, additional power cylinders supported by said gear member and being operatively arranged with said lift-pick member adjacent the upper end thereof for pivoting the same about the pivotal axis of said shaft, means for supplying pressure fluid to all of said power cylinders for actuating the same, and means for rotating said gear member, vertical movement of said shaft and the lift-pick member carried thereby being independent of said additional power cylinders and the operative arrangement thereof with said lift-pick member.

2. in combination with a vehicle providing a support frame, a generally horizontal shaft supported by said frame, a gear mounted upon said shaft for rotational movement about the longitudinal axis thereof, means for rotating said gear, a channel member carried by said gear, a second shaft carried by said channel member for movement along the longitudinal axis thereof, a lift-pick member received on said second shaft and being pivotal about the longitudinal axis thereof, a power cylinder secured to said channel member and being operatively arranged With said shaft for moving the same longitudinally with respect to said channel member, an additional power cylinder supported by said gear and 'being operatively arranged with said lift-pick member for pivoting the same about the longitudinal axis of said second shaft, and means for supplying pressure fluid to each of said power cylinders for actuating the same, movement of said second shaft longitudinally with respect to said channel member being independent of said additional power cylinder and the operative arrangement thereof with said lift-pick member.

3. In a lift-pick apparatus adapted for use with a vehicle having a mounting means therefor, a shaft adapted to be carried by such vehicle withthe longitudinal axis thereof horizontally oriented, a gear carried by said shaft for rotational movement about the longitudinal axis thereof, a pair of spaced apart channel members rigidly secured to said .gear, a second shaft extending between said channel members and being supported thereby for movement along the longitudinal axes thereof, a power cylinder supported by at least one of said channel members and being connected to said second shaft for moving the same longitudinally of said channel members, a lift-pick member supported by said second shaft for pivotal movement about the longitudinal axisthereof, an additional power cylinder carried 'by said gear and being connected with said lift-pick member for pivoting the same about the longitudinal axis of said second shaft, and each of said power cylinders being adapted to have fluid under pressure supplied thereto independently of each other for independent movement of said lift-pick member pivotally and along the longitudinal axes of said channel members.

4. In apparatus of the character described adapted for use in combination with a vehicle providingmounting means therefor, a member adapted to be rotated about a.

said member for supporting said shaft for movement along a line generally normal to the rotational axis thereof, a lift-pick member supported intermediate the ends thereof upon said shaft for pivotal movement about the longitudinal axis thereof, power cylinder means carried by said member and being operatively connected with said shaft for moving the same and the lift-pick member carried thereby along the aforesaid line generally normal to the rotational axis of the member, and additional power cylinder means also carried by said member and being operatively connected with said lift-pick member for pivoting the same about the longitudinal axis of said shaft.

5. The apparatus of claim 4 in which said lift-pick member is generally L-shaped, and in which said addi- 15 2,625,278

References Cited in the file of this patent UNITED STATES PATENTS 51,405 Jones Dec. 5, 1865 2,126,289 Schroeder Aug. 9, 1938 2,402,976 Olson July 2, 1946 2,421,472 Way June 3, 1947 2,585,095 Daniels Feb. 12, 1952 Sensbaugh Jan. 13, 1953

Images