US1264432A

US1264432A - Body-elevating mechanism for dumping-wagons or the like.

Info

Publication number: US1264432A
Application number: US7351116A
Authority: US
Inventors: Henry S Palm
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-01-22
Filing date: 1916-01-22
Publication date: 1918-04-30
Anticipated expiration: 1935-04-30

Description

H. S. PALM.

BODY ELEVATING MECHANISM FOR DUMPING WAGONS 0R THE LIKE. APPLlcAuoN msn 1AN.22. |916.'

Patented Apr. 30, 1918.

HENRY S. PALM, 0F READTNG, PENNSYLVANA.

BIDY-ELEVATING? MECHANSM FOR DUMPINGr-WAGONS OR THE LIKE.

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To all whom it may concern.'

Be it known that I, HENRY S. Patin a citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Body-Elevating Mechanism for Dumping-Wagons o r the like, of which the following is a specification.

My invention relates particularly to bodyelevating apparatus for dumping wagons, and it consists in the improved elevatinglever mechanism and operating means therefor hereinafter-fully described in connection with the accompanying drawings, the novel features ofwhich are definitely set forth in the claims.

Figure 1 is a sectional side elevation showing a movable body and a supporting frame therefor, in connection with my improved mechanismv as preferably constructed; the body being shown in partially elevated position, but the folded-down position being indicated in dotted-lines.

Fig. 2 1s a partial plan view ofthe same. with the body removed, the levers on one side being broken away to more clearly showy the construction.

Referring to the drawing, which shows a preferred embodiment of my invention, 5, 5, indicate the side members of a supporting frame for the relatively movable body 6 carried thereon. These side members are maintained in their -spaced relation by` a front cross member 7 and a rear spacing bar 8, and each is formed, as shown, with a forwardly extending guide way 9, near its lower edge. Elevating mechanism for raising the body from its supporting frame is adapted to fold-up within the latter; when the body is resting upon the frame, and,

when extended to vertically lift the body to a considerable height.

' This elevating mechanism, as shown in the drawing,l comprises

main arms

10, 10, formed of straight bars having their rearward ends pivotally connected at 11, 11, to the rearward ends of the

side member

5, 5, near the upper ed e thereof, and their

forward ends

12, 12, s idably pivoted to the forward end of the body 6 in guide ways 13, 413, ,provided'therefon said ends being preferably provided with` rollers as shown to insure free movement in the guide ways. Midway of the length of the

arms

10, 10, are pivotally secured at 14, 14;,jframe member pecication of Letters Patent.

Patented apr.. 39, 1916.

Application filed January 22, 1916. Serial No. 73,511.

arms 15, 1.5, the free ends of which are slidably engaged in the

frame guide ways

9, 9. This construction, 4as will be readily seen, forms toggle levers for ,elevating the front of the body 6; the

mainV arms

10, 10, between the pivots 14, 1-1 and

ends

12, 12, forming the body members of the toggles, and the

frame arms

15, 15, forming the frame members thereof.y The portions of the main arms rearward of the pivots la, 1&1, to the

end pivots

11, 11, form rigid body eX- tensions of the toggles.- Vhen sliding movement is imparted, as hereinafter described, to theends of the

frame arms

15, 15, to move them rearward in their

guide ways

9, 9, the toggle levers are extended, swinging on the

pivots

11, 11, of the main arms, the

ends

12, 12 of said arms moving backward 1n the

guide ways

13, 13, secured to the body,- in elevating the latter.

Rear elevating

arms

20, 20, also formed of straight bars, are pivotally connected at 21, 21, to the rearward end of the body 6, and their forward ends are slidably engaged 1n the

guide ways

9, 9, of the

side members

5, 5. Pivotally connected to these rear arms at 22, 22, midway of their length, are rear

frame member arms

23, 23, their free ends being pivoted at 24, 24, to the rear ends of the

side members

5, 5, directly below the pivots 11, 1 1 as shown. This construction forms rear toggle levers, for elevating the rear of the body 6; the'arms20, 20, between the

body pivots

21,21, and the

frame member pivots

22, 22, forming the body members of the toggle, and the

rear frame arms

23, 23 forming the frame members thereof.

The portions of the

arms

20, 20, between s the

pivots

22, 22, and theguide way ends,

kform rigid body extensions,- and when moved rearward in said

guide ways

9, 9 eX- tend said toggles to elevate the rear of the body.

As before stated, it is only' necessaryv to slidably move rearward in the

guide ways

9, 9, the ends of the

arms

15,15, and 20, 20, both pivotally engaged therein, to extend both the front and rear toggles to vertically elevate the body. Any means for so sliding these toggle actuating ends may be employed, the `simple, preferred manner, as shown in the drawings, comprising

racks

25, 25 having lugs pivotally securedto the ends of the

arms

15, 15, and moved longitudinally by pinion gears 26, 26' on crank shaft 27. The shaft 27 may be driven in .any well known manner, and I have indicated a gear wheel 28 outside the supporting frame for conveniently locating a train of drivin gears, not shown. Directly below the shaft 27 is located a parallel shaft 29, having

rollers

30, 30, thereon to support said racks and maintain them in constant mesh with the

pinions

26, 26.

The ends of the

arms

15, 15 are provided with rollers, as shown, bearing in the

guide ways

9, 9, to facilitate the sliding movement of said arms, and I preferably connect the ends of these arms by a shaft 31 to which the lugs of racks 25, are pivoted. A similar shaftv32 connects the ends of 'the

arms

20, 20, which also have rollers bearing in the

guide ways

9, 9. The

pivotal lugs

33, 33, of the racks 25,125, are bent upward so as to permit the racks to pass under the shaft 32; and said lugs are preferably prof vided with spaced shoulders 34, '34, to contact with said shaft 32 and the

arms

20, 20.

As shownl in the drawings, the

arms

15, 15, when in folded'down position, extend slidably move nearer the front end ,of the

guide ways

9, 9

than the sliding ends of the

arms

20, 20, so that the rearward movement of the racks `first operate only the front toggles to partially raise the front of the body 6, until the

shoulders

34, 34 come into contact with the shaft 32, when the rear toggles begin to extend and raise the rear of the body with the further raising of the front of the same. This construction permits of reducing the strains by elevating'only a portion of the load at the start, and at the Sametime gives -a pitch to the body for permitting the ready discharge of its load. This pitch however is determined by the proportions of the toggles vand may be varied as desired to suit the requirements.

My invention thus fully described provides a simple and eective elevating mechanism, and one that while it lifts to a great height, folds vinto a comparatively small space when in lowered. position, with nothing depending below the supporting frame, which latter is important as it permlts ready application to vehicles, especially motor trucks. I do not desire lto limit myself to the specific structure shown and described, but:

What I claim is: c

1. In combination with a movable body and a supporting frame therefor having its forward portion provided with a horizontal guide-way; separate front and rear toggleever connections between said frame an'd body, the former having its body member extended rearwardly and pivotally connected to the rear portion of the frame and its frame member pivotally connected to saidguide way, and the latter having its body member extendedl forwardly and rear portion of the frame; and means for moving both of said guide-way connections rearwardly to effect the elevation of the body.

2. In combination with a movable body and a supporting frame therefor having its forward portion provided with a horizontal guide-way; separate front and rear togglelever connections between 'said frame and body, the former having its body member extended rearwardly and pivotally connected to the rear portion of the frame and its frame member ivotally connected to said guide way, an the latter having its body member extended forwardly andpivotally connected to said guide way, and its frame member pivotally connected to the rear portion of the frame; and means for moving both of said guide-way connections vrearwardly to effect the elevation of the body; said horizontal guide-way being located below the pivotal frame connection of the front toggle-lever body member.

3. In combination with a movable body and a supporting frame therefor' having its forward portion provided with a horizontal guide-way; separate front and rear togglelever vconnections between said frame and body, the former having its body member extended rearwardly and pivotally connected to the rear portion of the frame and its frame member pivotally connected to said guide-way, and the latter havin its body member extended forwardly an pivotally connected to said guide-way and its frame member pivotally connected to the rear portion of the frame; and operating means comprising a horizontally movable frame member plvotally connected to one of said guide-way connections'and adapted to operatively engage the other.

4. In combination with a movable body and a supporting frame therefor having its forward portion provided with a horizontal guide-way; separate front and rear togglelever connections between said frame and body, the former having its body member extended rearwardly and Qpivotally connected to the rear portion of the frame and its frame member pivotally kconnected to said guide-way, and the latter having its body member extended forwardly and pivotally connected to said guide-way and its frame member pivotally connected to the rear portion of the frame; and operatin means comprising a horizontally movable frame member having a pivot lug connected to' one of said guide-way connections and adapted to operatively engage the other guide-way connection during a determined portion of its movement.

5. In combination with a movable body and a supporting frame therefor having its ating means comprising a horizontally movable frame member having one end thereof connected to one of said pivotal connections and adapted to engage and disengage the other of said pivotal connections at a determined point in the guide-way.

6. The combination of a movable body; a supporting frame having its rearward portion rovided with an upper pivot-support adjacent the body-supporting top of the trame and with a lower pivot-support, and its forward portion provided with a lower horizontal guide-way; separate front Aand rear toggle-lever connections between said frame andbody, the former having its body member extended in an approximately straight lineand pivotally connected to said upper pivot-support and its frame member pivotally connected to said guide-way, and the latter having its body member extended in an approximately straight line and pivotally connected to said guide-way, and its frame member pivotally connected to said lower pivot-support; and means for moving said guide-way. connections horizontally to effect the elevation of the body.

7. 'llhe combination of a movable body; a supporting frame having its rearward portion provided with an upper pivot-support adjacent the body-supporting top of the frame and with a lower pivot-support, and its lforward portion provided with a lower horizontal guide-way; separate front andl rear toggle-lever connections between said frame and body, the former having its body member extended in an approximately straight line and pivotally connected to said upper pivot-support and its frame member pivotally connected to said .guide-way, and the latter having its body member extended .in an approximately straight line and pivotally connected to said guide-way, and its `frame member pivotally'connected to said lower pivot-support; and an operating gear on said frame comprising a horizontally movable rack pivotally connected to one of said guide-way connections and adapted to operatively engage the other.

8.I In combination with a movable body and a supporting 'frame therefor having its forward portion provided with a horizontal guide-way; separate front and rear togglelever connections between said frame and body, the former having its body member extended rearwardly and pivotally connected to the rear portion of the frame and its frame member pivotally connected to ,said guide-way, and the latter having its body member extended forwardly and pivotally connected to said guide-way, and its frame member pivotally connected to the rear portion of the frame; and means for moving both of said guide-way connections rearwardly to effect the elevation of the body; one of said toggle-lever body `members having a slidable body connectlon.

ln testimony whereofll aix my signature.

HENRY S. PALM.

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