US1383669A - Elevating-truck - Google Patents

Description

C. W. SPONSEL.

ELEVATING TRUCK.

AFPLICATIQN man ms. 21, 1921.

Patented July 5, 1921.

s SHEETSSHEET 1 Inventor.

C. W. SPONSEL ELEVATING TRUCK.

APPLICATION FILED FEB. 2i

' Patented July 5, 1921.,

3 SHEETS-SHEET 2.

C. W.. SPONSEL.

ELEVA-TING TRUCK.

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Inventor.

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' CHARLES W. SPONSEL, 01" WETHERSFIELD, CONNECTICUT.

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Specification of Letters Patent.

Patented July 5, 1921..

Application filed February 21, 1921. Serial No. .146597.

To all whom it may concern Be it known that I, CHARLES W. SPONSEL, a citizerrof the United States, residing at Wethersfield, in the county of Hartford and State of Connecticut, have invented a new and usefullmprovement in Elevating Trucks, of which the following is a specification.

This invention relates to those trucks which are provided for use in manufacturing establishments where it is desired to transfer material from one locality to the. other without handling each piece of material, the trucks being pushed. under racks holding the material and elevated for lifting the racks with their loads from the floor, and after being drawn to the desired locality lowered for depositing the-loadedracks.

The object of the invention is to provide .a truck of this character which has relatively fewipa'rts, is cheap to build and strong and durable in use, and which is so designed that it can be manipulated for elevating and loading with less power than the trucks of this type in common use. p

In the accompanying drawings, Figure 1 shows a plan of a truck, with parts out in section, which embodies the invention. Fig 2 is a longitudinal section of the truck with the parts in the positions occupied when the elevating frame is raised. Fig. 3 is a similar.

view with the parts in the positions occuthe parts together.

pied when the elevating frame is lowered. Fig. at shows the rear wheels and their bearings. Fig. 5 shows a section on the line h 5 on Fig. 2. Fig. 6 shows. a transverse vertical section through the head on the line 6 6- this red near each end are rocker arms 31 on Fig. 3 looking toward the front.

side plates 1 fastened at their front ends'to the head casting 2 and connected at their rear ends by an angle iron 3 which is secured to the side plates by corner brackets 4. The elevator frame which sets inside of the body frameis formed of side plates 5 connected at their front ends by a, channel iron 6 and at their rear ends by an angle iron 7, corner brackets 8 being used to fasten The elevator frame plates are also connected by a channel iron 9. The body frame is supported at the rear end by a pair of wheels 10 which turn loosely on an axle 11 that is mounted at its ends in bearing brackets 12 fastened to the inside of the side plates of the body frame. At the front end the head is supported by a single wheel 13 on an axle 14: held in bearing brackets 15 that extend downward from .a hub 16 which turns in an openmgin the head, anti-friction bearings 17 being arranged between-the hub and the head. Extending from and keyed to the hub is a post 18 to the upper end of which the forked end of the draft handle 19 is pivoted by a pinkZO.

The elexlator frame is supported within the. body frame by four bell crank levers 2-1 that fit, two on each side, between the side plates of'the frames. The bell crank levers are connected to the side plates of the body frame by pivot studs 22. The upper ends of the levers are connected to the side plates of the elevator frame by pivot rods 23 that extend across the elevator frame. "ll e lower ends. of the levers "on each -side are connected by bars 24 that extend below the elevator frame and which are pivotally attached to the levers by rods 25 that extend from side to side. These bars are connected near the front end by a channel iron 26 which at the middle has cars 27 through which front pivot rod bars a art. A h draulic relensin check 29 g of common form is pivoted to the rod 25 that connects the lower ends of the front bell crank levers, and pivoted to the rod 23that connects the upper ends of the rear bell crank levers.

The connecting harshest their front ends are connected by a rod30 and pivoted on that are keyed upon a shaft 32 which. ex tends across the head casing and is support- .ed at its ends by angle brackets 33.. The

shaft 32, by reason of its intermediate position or location between the power applying mechanism, by which it is rocked, and the elevating mechanism to which it trans- .Inits the rocking movement, is termed the "transmitting shaft.

/ forward.

are connected by a pin 38. On the outer ends of this pin 38 two hooked fingers 39 are pivoted. The upper ends of these hooked fingers are adapted to be engaged by a pin 40 that extends between the forked ends of the draft handle 19. A spring 4-1 normally tends to draw the hooked fingers backward away from the end of the draft handle. Pivotally mounted. on an arbor -42 supported by the head at the middle is a hooked latch arm 43, projecting rearwardly from which is a stop lug 44, and projecting forwardly from which into the path of the end of the draft handle is a release lug 45. A spring 46 normally tends to draw the hooked end of the latch forward.- A treadle 47 is loosely hung upon the shaft 32 and connected with the treadle is an upwardly extending finger 48 that at its upper-end may have a roll 49' of the hooked fingers 39 when the treadle is depressed so to force the hooked fingers The truck is drawn from place to place by the draft handle which normally is free from the operating mechanism. When it is The front end of the handle is then turned for-wart and down. This movement causes the pin 40 to draw up the fingers 39 which in turn lift the arms 37 so t .at the pin 38 which these arms carry engages the arms 35 and causes them to turn the shaft 32. Turn ing the shaft in this swings the rocker arms and .zws the connecting bars forward ngs the bell crank levers so that l lift the elevator frame from nown in Fig, 3 to the position g. 2. which the elevator frame u rtQCi the pin 36 connecting the ends of the arms 35 is engaged by the hook of "ie latch l3 (Fi 2) so that the parts will be held with elevator raised. lVhen the elevator is thus locked in its raised position the truck may be drawn and manipulated into any position without danger of the elevator becoming unfastened and dropping the load, the draft handle being free at this time for such purpose. When it is desired to lower the elevator the handle is turned upward to the position shown in Fig. 3, so that its in end will engage the releasing lug a; c latch to turn back and release its hooked end from the pin Then the elevator is free to lower under the influence of load depress the lug cause the naeaeee through the interposition of the connecting disconnect the draft handle from the operatin mechanism and when released althou 'h carrying a heavy load, the elevator lowers itself gently.

The invention claimed is 1. An elevating truck comprising a body frame, wheels supporting said frame, an

elevator frame, bell crank levers fulcrumed t the body frame andhaving the upper.

llIIlb of each pivoted to the elevator frame, llfars connecting the lower limbs of the bell drank levers on each side, a transmitting shaft extending transversely of the body frame, rocker arms keyed 0n the transmitting shaft and jointed to the ends of said connecting bars, an arm keyedto the transmitting shaft, a latch pivotally mounted'on the body frame and adapted to engage and hold said arm lifted, arms pivoted on the transmitting shaft and adapted to engage and lift the arm keyed to the transmitting shaft, fingers connected to said lifting arms, a steering wheel post mounted in the body frame,-a draft handle pivoted to said post,

means for engaging said fingers with the connecting bars, an arm keyed to the transmitting shaft, a latch pivotally mounted on the body frame and adapted to engage and hold said armlifted, arms pivoted on the transmitting shaft and adapted to engage and lift the arm keyed to the transn'iitting shaft, fingers connected tosaid liftingarms, a steering wheebpost mounted in the body frame, a draft handle pivoted to said post, a treadle and arm for connecting said fingers with the draft handle, and means for disconnecting said latch from the arm with which it is engaged.

3. An elevating truck comprising a body frame, wheels supporting said frame, an elevator frame, bell crank levers fulcrumed to the body. frame and having the upper limb of each pivoted to the elevator frame, bars connecting the lower limbs of the hell 45 necting the lower crank levers on each side, a transmitting shaft extending transversely of the body frame, rocker arms keyed on the ends of the transmitting shaft and jointed to the ends of said connecting bars, a forked arm keyed to the transmitting shaft, a latch piv otally mounted on the body frame and adapted to engage and hold the forked arm lifted, arms pivoted on the transmitting shaft and adapted to engage forked arm, hooked fingers connected to said lifting arms, a steering wheel post swiveled in the body frame, a draft handle pivoted to said post, means for connecting said fingers with the draft handle, and means for disconnecting said latch from the for ed arm,

4. An elevating truck comprising a body frame, wheels supporting said frame, an elevator frame, bell crank levers fnlcrnmed to the body frame and having the upper limb of each pivoted to the elevator frame, bars connecting the lower limbs of the bell crank levers on each side, a transmitting shaft extending transversely of the bod frame, rocker arms keyed on the transmitting shaft, and jointed to the ends of said. connecting bars, an arm keyed to the trans mitting shaft, a latch pivoally mounted on the body frame and adapted toengago and hold said arm lifted, arms pivoted on the frame, a draft handle pivoted "to said post,

and means for connecting at J. fine with the draft handle, said handle havi means for engaging and disconnecting said latch from the arm with which it is engaged.

5. An elevating truck comprising ii body frame, wheels supporting said. frame, an elevator frame, bell crank levers fulcrumed to the body frame and having the upper limb of eacli pivoted to the elevator frame, bars conlimbs of the bell crank levers on each side, a transmitting shaft ere tending transversely of the body frame, rocker arms keyed on the transmitting shaft, and jointed to the ends of said connecting bars, an arm keyed to the transmitting shaft,

a latch pivotally mounted on the body frame and adapted to engage and hold said arm lifted, arms pivoted on the transmitting shaft and adapted. to engage and lift the arm keyed to the transmitting shaft, fingers connected to said lifting arms, a steering wheel post mounted in the body frame, a draft handle pivoted to said post, treadle and arm for connecting said fingers with the draft handle, and means extending from the handle for engaging and disconand lift said necting said latch from the arm with which it is engaged.

6, An elevating truck comprising a body frame, an elevator frame within the body frame, bell crank levers located between said frames,, said bell cranks being fulcrumed to the body frame and having their upper limbs pivoted to the elevator frame, a bar'connect ing the lower limbs of the bell cranks on each side, a transmitting shaft extending transversely of the body frame, rocker arms keyed on the transmitting shaft, and jointed to said bars, an arm keyed to the transmitting shaft, a latch pivotally mounted on the body frame and adapted to engage and hold said arm lifted, means adapted to engage and lift said arm, a steering wheel post swiveled in the body frame, a draft handle pivoted to said post, means for connecting the draft handle with said arm lifting means and means for disconnecting said latch from said arm.

Z'.-An elevating truck comprising a body frame, an elevator frame within the body frame, bell crank levers located between said frames, said bell cranks being fulcrumed to.

the body frame and having their upper limbs pivoted to the elevator frame, a bar connecting the lower limbs of the bell cranks on each side, a transmitting shaft extending transversely of the body frame, rocker arms keyed on the transmitting shaft and jointed to said bars, an arm keyed. to the transmittingshaft, a latch pivotally mounted on the body frame and adapted to engage and hold said arm lifted, means adapted to engage and lift said arm, a steering Wheel post swivelcd in the body frame, a draft handle pivoted to sale post, means for connecting the draft handle with said arm lift ng means, means for disconnecting said latch from said arm and a fluid check connected between the lower limbs of the front pair of bell cranks and the upper limbs of the rear pair of bell cranks,

S. An elevating truck comprising a body frame, wheels supportinp said frame, an ele-. vator frame within the body frame, bell crank levers located between said frames, said bell cranks being fulcrumed to the body frame and having their upper limbs pivoted to'the elevator frame and their lower limbs connected by side bars, means for reciprocating; said connecting bars and through the bell cranks raising the elevator frame, means for holding the said reciprocating means with the elevator frame raised,'and a handle for operating said reciprocating means for lifting the elevator frame and for releasing said holding means.

CHARLES Vi. SPONSEL.

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