Title:
Hoisting device
United States Patent 2461401


Abstract:
This invention relates to hoisting devices and has special reference to a hoisting device for use on a truck or the like. One important object of the invention is to provide an improved general construction of hoisting device. A second important object of the invention is to provide a hoisting...



Inventors:
Roy, Trombley
Application Number:
US60235145A
Publication Date:
02/08/1949
Filing Date:
06/29/1945
Assignee:
Roy, Trombley
Primary Class:
Other Classes:
212/247
International Classes:
B60P1/54; B66C23/36
View Patent Images:
US Patent References:
2395201Portable electric hoist for truck mounting1946-02-19
2382299Loading and unloading crane1945-08-14
2322636Tie unloading and loading mechanism1943-06-22
2301555Truck hoist1942-11-10
2107500Milk can conveyer1938-02-08
1870689Industrial truck1932-08-09
1563650Industrial truck1925-12-01
1023438N/A1912-04-16
0920770N/A1909-05-04
0894916N/A1908-08-04
0481699N/A1892-08-30
0024912N/A1859-07-26



Description:

This invention relates to hoisting devices and has special reference to a hoisting device for use on a truck or the like.

One important object of the invention is to provide an improved general construction of hoisting device.

A second important object of the invention is to provide a hoisting device having a foldable crane arm.

The third important object of the invention is to provide a hoisting device having a foldable crane arm and having motor means and a hoisting drum carried by the outer section of the.foldable arm.

It is a further object of the invention to provide hoisting mechanism especially designed and adapted for the loading of barrels, kegs, bales and the like upon trucks and also for unloading such articles from trucks, the mechanism provided accomplishing the loading and unloading operations in a most efficient manner and with increased speed of operation.

With the above and other objects in view, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly claimed.

In the accompanying drawings, like characters of reference indicate like parts in the several views, and in whichFigure 1 is a plan view of the forward portion of a truck body and rear of a truck cab, the truck body being equipped with the present invention shown by dotted lines in a shifted position, Figure 2 is a section on the line 2-2 of Figure 1, Figure 3 is a detail view showing the arrangement of the hoisting means proper, and Figure 4 is a wiring diagram for operation of the hoist.

In the embodiment of the invention here shown, there is illustrated the forward portion 10 of a truck body and a rear portion of a truck cab I with which the loading or hoisting mechanism is associated. While the hoisting mechanism may be attached to the truck body at any desired point, such as forwardly or rearwardly thereof and centrally of either end, or at either side of the truck body, the hoisting mechanism for purposes of illustration is shown as located centrally of the forward end of the truck body. As shown more clearly in Figure 2, a journal bearing or pin 12 rises from a base plate 12a centrally of the forward end of the truck body in proximity of the cab II and upon which pin there is mounted a bearing sleeve 13. A tubular crane post 14 has the lower end thereof mounted upon the hearing sleeve 1:3 and said crane post is maintained in a vertical position by means of a U-bolt 4i. 15 inclosing the upper end of the post and anchored to the truck cab 11 and with this mounting the crane post 14 is free to rotate.

Extending from the post 14 is a horizontal crane arm 16 that is braced with respect to the post by means of a strut I1. A circular platform 18 is mounted upon the outer free swinging end of the crane arm :L6 and from which platform rises a. pinr 19 extending vertically therefrom. A sleeve 20 is mounted upon the pin I9 and is re1,r tained in. position thereon by means of the nut 21 threaded- upon the upper end: of the pin 190. Diverging arms 2- extend from the sleeve 20 in the same vertical plane and carry at their outer ends a perpendicular plate 23.

0o As illustratedin Figures I and 3, motor mechanism and associated devices for the operation of a hoist are carried by the plate, 23, the reference character 24. designating an electric motor supported upon a side face of the plate 23 and having its shaft 2 5 extending through the plate and carrying at. the. opposite side of the plate a. gear 26.

A larger gear wheel 11 is fixed to an axle 28 journaled in the plate_ 23 and said gear 2-7 is in mesh with the gear 2. as illustrated. A cable winding drum 29 is fixed to the axle 28 outwardly of the gear 27 and carries a hoisting cable 30 that is prvyided upon its extended free end with a hoistingg device such as a, grapple as indicated by the reference character 31 for the handling of barrels, kegs, bales or other articles to be loaded and unloaded from the truck.

Figure 4 illustrates a wiring diagram for the supply and control of electrical energy to the motor 24 for the operation of the hoisting mechanism and also illustrates the usual truck battery 32 as being utilized in connection with the hoisting mechanism. The reference character 33 designates the additional battery for the operation of the hoisting mechanism and which additional battery 33 is connected in parallel with the battery 32 by the conductors 34. The conductors 35 connect the batteries 33 and 32 with the motor 24 and a control switch 36 is interposed in the conductors 35.

From the above detailed description of the invention, it is believed that the construction and operation thereof will at once be apparent, it being noted that the post 14 with its crane arm 16 may be shifted to position the hoisting mech65 anism carried by the plate 23 laterally of the truck body 10 as shown by dotted lines in Figure 1.1 The hoisting mechanism is shiftable upon its vertical bearing sleeve 13, the crane post 14 and by means of the bearing sleeve 20. The grapple 31 is illustrated in Figure 2 as being engaged with a barrel B with the hoisting mechanism supporting the barrel in a raised position relative to the truck body 10 for the loading or unloading thereof relative to the truck body. With the shiftable mountings for the hoisting mechanism as described, the plate 23 carrying the cable drum 29 is positionable at the desired point over the truck body for releasing a barrel or the like in the desired position relative to the truck body.

While there is herein shown and described the preferred embodiment of the invention, it is nevertheless to be understood that minor changes may be made therein without departing from the spirit and scope of the invention as claimed.

What is claimed is: 1. The combination with a vehicle body, of a pivot member fixed to said body adjacent one end thereof, a crane post pivoted on said member, a crane arm extending radially from the upper end of said post, an extension arm pivoted to the outer end of said crane arm, and a vertically disposed plate carried by the free end of said extension arm, a motor mounted on one side of said plate, and hoisting means driven thereby mounted on the opposite side of said plate.

2. The combination with a vehicle body, of a pivot member fixed to said body adjacent one end thereof, a crane post pivoted on said member, a crane arm extending radially from the upper end of said post, an extension arm pivoted to the outer end of said crane arm, and hoisting means carried by the free end of said extension arm, said hoisting means including a vertically disposed plate, a drum rotatably mounted thereon, a motor carried by said plate, and gearing operatively connecting said motor and drum.

3. The combination with a vehicle body, of a pivot member fixed to said body adjacent one end thereof, a crane post pivoted on said member, a crane arm extending radially from the upper end of said post, an extension arm pivoted to the outer end of said crane arm, and hoisting means carried by the free end of said extension arm, said hoisting means including a vertically disposed plate, a drum rotatably mounted on one side thereof, a motor mounted on the opposite side of said plate, gearing operatively connecting said motor and drum, and a battery connected to said motor for actuating the same.

4. In a device of the kind described, a vehicle body, a battery carried thereby, a crane device having a crane arm including pivotally connected inner and outer members, a motor hoist on the outer end of said outer member, said hoist comprising a vertically disposed plate having a motor mounted thereon, a drum rotatably mounted on said plate, and driving connections between said motor and drum, a second battery connected in parallel to the motor hoist and the first battery, and a switch interposed between said second battery and motor hoist.

5. In a portable hoist, a supporting post adapted to be secured to a truck body, a horizontal supporting arm mounted on the upper end of the post for swinging movement in a horizontal plane, a plate mounted on the arm, said plate having bearing openings, a hoist drum mounted within a bearing opening, a large gear at one end of the hoist drum, an electric motor mounted on the plate, a substantially small gear meshing with the large gear, and being secured to the shaft of the motor, whereby rotary movement of the motor is transmitted to the hoist drum, a cable adapted to be wound on the hoist drum, and a grapple secured to the free end of the cable and adapted to 30 be positioned over an article to be lifted, securing the article to the cable, whereby said arm may be swung inwardly to a position over the truck body to deposit the load lifted by the grapple.

ROY TROMBLEY;.

85 REFERENCES CITED The following references are of record in the file of this patent: UNITED STATES PATENTS Number 24,912 481,699 894,916 920,770 1,023,438 1,563,650 1,870,689 2,107,500 2,301,555 2,322,636 2,382,299 2,395,201 Name Date Parce ----------- July 26, 1859 Lovell ------ --Aug. 30, 1892 Strobel et al. -.---. Aug. 4, 1908 Marvin -------- May 4, 1909 Muncaster ------- Apr. 16, 1912 Pleines ----------- Dec. 1, 1925 Remde ---------- Aug. 9, 1932 Price ------------- Feb. 8, 1938 Mantyla -------- Nov. 10, 1942 Kidder --------- June 22, 1943 Deiters --------- Aug. 14, 1945 Smith ---------- Feb. 19, 1946