US2466619A - Toy shovel - Google Patents

Description

April 5, 1949. v STUCKEY ET AL 2,466,619

TOY SHOVEL Filed Sept. 25, 1945 INVENTOR 25% MM & BY

ATTORNEY Patented Apr. 5, 1949 umrm- STATES or TOY SHOVEL- Harold R. Stuck'eyand Watter-NormanYates; Pittsburgh; Pa.

Application September 25, 1945, Serial No. 618,436

2 Claims. 1

This invention relates to toy cranes or shovels andf'itis among the 'objectsth'ereof to provide a toy, shovel carried ona boom that ismovably attachedVon an angularly' movable cab;

'It' is a furthenobj'ectof "the invention "to provide separately controllable means for actuating the boom and cab so that they may be operated simultaneously or independently as desired.

Another object of the invention is to provide a toy of the above designated character which shall be electrically operated and controlled to thereby afford interesting amusement in the operation of the toy shovel by the manipulation of the boom and cab from a remote control.

Conventional types of toy shovels and the like utilize electric drives which actuate both the boom and cab in their respective movements through complex gearing and clutch mechanism and it is the primary object of the present invention to provide a greatly simplified form of actuating mechanism which largely eliminates such gearing and clutches.

Further objects of the invention Will become more apparent from a consideration of the accompanying drawing constituting a part hereof, in which like reference characters designate like parts, and in which Fig. 1 is a side elevatlonal view, partially cut away, of a toy electric shovel embodying the principles of this invention; and

Fig. 2 a Wiring diagram of the electric motors and switch controls.

With reference to Fig. 1 of the drawing, the numeral l designates wheeled axles on which is supported the base 2 of a revolving cab that is pivoted on a hollow shaft 3 to be angularly movable therearound. The cab may be enclosed with a sheet metal wall 4 and a roof 5, either or both of which may be corrugated to simulate in appearance commercial crane or shovel cabs. Mounted on an upright 6 is a boom 1 which is secured at 8 and which is provided with a rod 9 secured to the boom by a bracket Ill and to the cab at the top of the upright 6 as shown. A bucket I2 is suspended by a cable l3 from the boom 1, the cable passing around a pulley I4 to a drum 45. The drum is mounted on a shaft l6 which is revolved by a gear wheel H, the teeth of which interact with a pinion (not shown) on a shaft is of a motor l9 that is mounted on a bracket 20 of the cab. By energizing the motor l9, which is of the reversing type, wheel I! is revolved to revolve the drum l which operates the bucket l2 to raise and lower the same.

Also mounted on the floor or base of the cab a second motor, generally" designated by the numeralz l, having drive pinion 22 that intenacts with the teeth of "a" gear "wheel "23' *on' a shaft 24." A pinion 25, revolvingwith' the shaft f2'fii in teracts withthe teethof "a gear wheelie of the hollow shaft 3 whereby upon energization of the motor 2| the cab is revolved in either direction, th motor 2| also being of the reversing type.

The motors l9 and 2| are shown in the diagram of Fig. 2 as connected, through their field coils 2'! and 28, respectively, in a power circuit consisting of conductors 29 and 30, 3| and 31a, 32 and 32a, connected with switch terminals 33 and 34. The motor circuits are connected to a source of electrical energy carried by conductors 35 and 36 which are connected through terminals 31 and 38 to the motor circuits by manipulation of switches 39 and 40.

The bucket 12 consists of a pair of shovels or scoops pivoted at |2a and 24b so that th scoops will open when the shovel comes to rest on a support, and will close by their own weight when the shovel is lifted. As shown in Fig. 1, the electrical connections to the motors are made through the conduits as indicated in Fig. 2 by passing them through the hollow shaft 3 to the cab and thence to the motors l9 and 21 The operation of the above-described toy shovel is briefly as follows. If it is desired to raise and lower the shovel, switch 39 is thrown to contact terminals 33 or 33a, depending on the direction in which it is desired to move the shovel, the hoisting function being conducted by rotation of the cable drum I5 mounted on gear shaft Hi. When it is desired to revolve the cab, motor 2| is energized by switch 40 which is thrown to engage terminal 34 or 34a, depending on the direction in which it is desired to revolve the cab. By

means of the independent motor drives and independent motor control circuits, the shovel may be hoisted or lowered independently of movement of the cab or simultaneously therewith to simulate the operation of commercial crane hoists and similarly the cab may be revolved independently of movement of the shovel, thereby lending great flexibility to the use of the toy in conjunction with sand piles and toy trucks or the like.

Although one embodiment of the invention has been herein illustrated and described, it will be evident to those skilled in the art that various modifications may be made in the details of construction without departing from the principles herein set forth.

We claim:

1. In a toy shovel, a stationary support, a cab mounted for rotary movement thereon, a stationary column extending from said support through said cab having a gear wheel mounted thereon, a. gear drive having gear teeth interacting with said stationary gear mounted in said cab to be movable therewith, a motor for actuating said drive mounted in said cab, a boom extending from said cab, a hoist suspended from said boom having a cable for lifting and lowering the same, a cable drum in the cab for said hoist cable, a drive for said drum and a motor for actuating said drive mounted in said cab, and control mechanism for energizing said cab rotating and drum motors independently whereby the cab and drum may be actuated independently or simultaneously.

2. In a toy shovel, a stationary support having a hollow sleeve extending vertically thereon, a cab mounted for rotary movement on said vertical sleeve, a gear wheel on said sleeve, a motor mounted in the cabhaving driving connections with said gear wheel whereby upon energization of the motor the cab is rotatable in either direction around said vertical sleeve, a boom extending from the cab, a hoist suspended by cable from a pulley on the end of the boom, a drum mounted in the cab for winding the hoist cable and a, motor mounted in the cab for actuating said drum, separate control means for said cab and drum hoisting motors for selectively operating said drum and cab and for correlating the movement of the hoist with the movement of the cab.

HAROLD R. STUCKEY. WALTER NORMAN YATES.

REFERENCES CITED The following references are of record in the flle of this patent:

UNITED STATES PATENTS Number Name Date 782,034 Johnston Feb. 7, 1905 1,694,084 Straight Dec. 4, 1928 1,771,333 Joret July 22, 1930 1,855,892 Schiebeler Apr. 26, 1932 1,940,690 Moore Dec. 26, 1933' 2,254,083 Nickles et al Aug. 26, 1941 2,361,159 Williams Oct. 24, 1944

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