US2382346A - Toy excavator - Google Patents

Description

roYEXcAv'roR Y Edwa'pd fok sweater', spring rnfMinni, assign-or f to ".ohnjA lrayley, .Minneapolisp f E Atrustee applicationnoychlber zo, 1943,fseri`aiNo. 511,1fic."`

This invention relates to toy excavators.` adapted toisifmulate the general appearance andgaction of industrial excavators.I having movable `clipper` buckets. H

Iti isy .a generalobject of the inventionl to, p rovide atoy device simulating'an industrial; power scoopfor-shovelwhich includes a boom, a `clipper` stick. mounted upon` the boom forzmovement rela-` tive thereto and a dipper bucket having a disl-` charge gate wherein movement; of thedipper stick and clipper issimilar to that of. a full Asized industriatmachine, and :wherein such, movement fis. accomplished by .means of simply constructed and` easily.actuatedmanualcontrols.`

More specically `it is an `object of. the .invention to provide a toy excavator. with an.` undercarriage. lia-ving a cab pivotallylmounted thereon; a. booml extending from tl1e-cab,-.a` dippenstick pivotally and slidaloly` .mounted` on. the. boom@` ya manual winding drum on thecabfand-liiexible; connections between thefdrum and the dipperstick toprovide for pivotal and/0r. sliding' movementof the `clipper stick relative toits supporting boom..

Another obiectof the inventionis. to provide a4 toyexcavator witha movable dipper stick having a dipper thereonv wherein `'the clipper is provided with agatewhich can be swung, toppen and closed positions; and wherein the opening and closing, of the .clipper gate canbe controlled 4from thecabf,4 Y

MS, i

These and .other4 objects and 4advantages of theE invention will Amore `fullyV appear. fom s thef followz ing description `made in connection.'withuthe'` ac-` companyingdrawing, wherein like-referencecharacters refer. to` `thecxsame: parts.J throughout..` the.

views, and, in which: .y Fig. :1 is.a.p1an view of thedevice;

Fig. 2 is a side elevation thereof;

. Fig. 3 is an enlarged fragmentary view of the the frame is a cab A having a bottom 1, sides 8,

and a top portion 9. As best shown in Fig. 2, the top covers only the` rear portion of the cab A. A pivot bolt I0 connects the frame member 5 with` the cab bottom 'land said members 5 and 1 are separated by a washer I I so that the cab A will swing freely on the pivot bolt I0 in simulation of thefpivotal movement. Vof the control cab` of am` y industrialgexea-vating,shovel.`

.A pair` of blocks. lf2 are secured in slm-acted.relaL tion at themforward side portions of the cabsides.

` endof-g the `dipper'stick Il as viewed in `Figli-12 carries a d-ipper bucket |49 which is secured to ,theg dippervstick byanysuitable means such as-brackf 81, and between the blocks` I-2 is positioned aboom lf3; made upof a pair of spacedmembers `l3a,; each of said members` I3a. being secured to one ofthe blocks I2; At the outerend ofthe boom .which extendsaforwardly and. upwardly from` thepab A;

there. is 1a bearing; or roller t@ whichconnects the members I.3,a.;at their outer ends.` IntermediateV theendsof .the boom member I3a xarewooden pinstE andflli which. asbest shown inFig. 2, t

are, spaced from each other longitudinally .ofmsaidl boom; members If3a.-

4Supported `bythe pin. I5 `'isla dipper having an'elongated slot t8 formedthereingthe pin lybeing. received` in said slot I8. Theflower;

`ets.,. 2ll which mayA be bolted or screwed to the end;

otisaid; dipper stick I11. The. details of thedipper.y

construction are. described below. :y

` Extending` between theside walls. 8 which-form part of the cabAisa shaft 2| in the formvof a.

uowei pin, which extends through the far side wan I 8` las-viewed in the drawing,` and the outwardly( extending portionof said shaft2 I is provided` with a, crank arm 22 havinga crank hand1e2-3 which.

permits the shaft 2|' to. be` turned by hand. A. cord extends-from the shaft 2l forwardlyandf upwardly, over the bearingpin, I4 at the upperi end `of .the boom I3,; andthence. downwardly to;

connect with theforwardend of the dipper stick at 25.@L Extending betweenythe; cab side walls 8 adjacent the.v forward endsthereof. is a sha`.ft,2.6` which has an end extending through the near side Wall 8, as viewed in the drawing, to receive a crank arm V21 having a crank handle28 thereon. A cord 29 extendsfrom the shaft 26 upwardly and `forwardly beneath the pin IB between the boom lmembers I3a and thence upwardly to con- 'nect with the upper end of the dipper stick I1 atl 30. A second cord 3l also extends from the shaft 26 forwardly and upwardly and over the pin I6` mounted between the boom members I 3c and thence downwardly to connect with the lower end vof the dipper stick at 32; M In Fig. 2 it will be noticed that the cords 29 and 3l leadfrom the under and upper'portions of the shaft 26 to indi'- cate that said cords 29 and 3I are wound oppositely on the shaft 26. i i

The dipper bucket I9 is provided with sides as in the case of an ordinary industrial excavator or dipper bucket, and the forward side at its upper edge is provided with a cutting or digging portion 33. The lower rear side wall portions of the dipper bucket I9 are provided with elongated openings 34 which are adapted to receive a pivot pin 35. To the pivot pin 35 is connected a dipper gate 36 which, as shown in the drawing, can swing with the pivot pin-,35 toeprovide a pivoted closure for the '-bottom'e-of the Abu`cketfI9. The lower forward portion of the bucket I9 is provided with a stationary catch member 31, and the catch `31 is so related tothe dipper gate 36 and the elongated openings 34 in the sides of the 'dipper bucket that the door 36 canbeshifted rearwardlyv A or toward the end of the dippenstick I1 so that the free edge of the gate 35 will swing past the catch 31. A cord 38 is connected to the dipper entirely by proper coordinative movement of the shafts 2I and 26 which carry the crank arms 22r and 21 respectively, and the dipper gate can be opened and closed by pulling on the gate control'cord38 when the'dipper bucket I9- is in one of the positions shown in Figs. 3 and 4. The pin gate 3B and extends through an opening' 39 'in-theback of the dipper bucket and thence upwardly f over the roller pin I4 at the upper end of the booml I3 and rearwardly -throu'glr a'neyelet- 40' which may be securedto thecab top-9.5 '-1 '-'Fhef-device can be manipulated to swing the dipper stick I1 forwardly 'or rearwardly away fromand toward the cab A and about the pivot'4 pin I5, and alsothe dipper'stick `I1 can be slid along the pivot'pin I5 to move thedipper bucket I9towardfand away from yth'e'boorm I3. By winding'the cord 24 on .the shaft 2I the lower forward Vend of the'dipper stick I1 will be pulledl upwardly. This will produce generally a pivotal movementof the dipper stickj I1 about the pivot pin 'I5 although there is some -slight sliding* movementwhichwtakes place. In order to pro-- duce a decided slidingvmovement of the dipper sdckrrrelanve to the boom. l'afthe shaft 2s 'is rotatedby meansof the cranknniembers 21; 28. In? order vto produce a pivotal action without sliding or a slidingl movement* without pivoting it isnecessary to coordinate the movements of yThe movements of the dipper stickV Y hangs 'flv'ertically inv the position' shown in Fig. 3 with the `dipper bucket' I 9 in con-V tact with or closely vadjacent to the-'ground surfaceal' In such` position' thedipper gate `control The boom caribe extended for-J This I6 on the boom I3 serves not only as a bearing pin for-the cords 29 and 3| which connect to r.opposite ends of the dipper stick I1 but it also provides for free but limited movement of theY dipper stick.

The device is of extremely simple construction' and can be'cheaply constructed from woodor any other suitable material. v y

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions of the various parts without departing-from the scope of my invention. n

What I claim is: f i

l. In a dipper construction for toyexcavators,

a bucket having a discharge opening,a gate piv-I otally supported by saidbucket adjacent said discharge openingand having a free edge portion ,Y swingable toward and away lfrom said discharge opening, a' catch member onsaid bucket adjacent 'saidopening and adapted to engage said free edge of said gate, and said gate being shiftable partially/across said opening and toward and away from said catch member.

-2.- In a toy excavator, a unit `includingja supporting frame and a cab rotatably mounted on said frame, a'pair of spaced parallel members extending upwardly and forwardly from said cab to provide a boom, said members being connected intermediate their' endsand more closely adjacent the lupper ends thereof bya pin, said pin being stationary relative to said boom members, a dipper stick having an elongated longitudinal slot formed therein and slidably receiving said pin, an element mounted `between the upper ends of said'boom membersv and rotatable relative to said boom members, and a boom swinging strand ofexible material extending from saidcabvover said rotatable element and connected to the lower end of said boom.

H EDWARD. C. STREATER.

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