US2774399A - Power operated wood plane with chip and shaving discharge means - Google Patents

Description

Dec. 18, 1956 NS I POWER OPERATED WOOD PLANE WITH CHIP AND SHAVING DISCHARGE MEANS 3 Sheets Sheet J.

Flled March 15, 1955 INVENTOR. ARTHUR N-EMMONS BY W,

Dec. 18, 1956 A. N. EMMONS 2,774,399

POWER OPERATED WOOD PLANE WITH CHIP AND SHAVING DISCHARGE MEANS Flled March 15, 1955 3 She'ets-Sheet 2 INVENTOR. ARTHUR N. EMMoNs Dec. 18, 1956 A N. EMMONS 2,774,399

POWER OPERATED WOOD PLANE WITH CHIP AND SHAVING DISCHARGE MEANS Flled March 15, 1955 3 Sheets-Sheet 3 INVENTOR. ARTHUR N. EMMoNs United States Patent 6 POWER OPERATED WOOD PLANE WITH CHIP AND SHAVING DISCHARGE MEANS Arthur N. Emmons, Nedrow, N. Y., assignor to The Porter-Cable Machine Company, Syracuse, N. Y., a corporation of New York Application March 15, 1955, Serial No. 494,353

8 Claims. (Cl. 145-4) This invention relates to power operated wood planes. Planes of this type include a frame to which an electric motor is attached and which provides the power for rotating, at a high speed, a suitable cutter exposed through the bottom side of the plane for contact with the work being finished. The motor provides the power for the cutting operation whereby the energy expended by the operator is essentially only that necessary to guide the tool and accordingly, these planes are used extensively by carpenters, especially in work on the interior trim of buildings, such as fitting and hanging doors, sash, etc.

Because of the high speed power operated cutter and the rapid movement with which the operator can conveniently move the plane, a relatively large amount of material may be removed from the work piece by one pass of the plane. This results in the rapid production of a large quantity of shavings and chips, or splinters, which must be removed from within the frame housing of the plane-otherwise the shavings, and especially the splinters, have a tendency to pass under the cutter and, when they do so, the surface being finished is rendered defective.

This invention has as an object a portable, poweroperated, plane embodying a structural arrangement which functions to effectively discharge the shavings and splinters removed from the work piece by the cutter in'a manner to prevent the shavings and chips from being directed between the cutter and the surface being finished.

The invention has as a further object structural improvements in this type of plane which will be referred to in greater detail hereinafter.

The invention consists of the novel features and of the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

In the drawings- Figure l is a top plan view of a power plane embodying my invention with parts broken away and parts in section;

Figure 2 is an end elevational view looking to the left in reference to Figure 1;

Figure 3 is a bottom plan view;

Figure 4 is a side elevational view looking to the right,

Figure 2, with parts removed and parts in section;

Figure 5 is a view taken on line 5 5, Figure 2; Figure 6 is a sectional view of the frame body taken on line 6-6, Figure 5;

Figure 7 is a view taken on line 7-7, Figure 4;

Figure 8 is a view taken on line 8-8, Figure 5; and V Figure 9 is a view taken on line 99, Figure 7. V

The structuralarrangementof the plane in general consists of' an elongated castmetal frame formed at its forward end with a body portion and a rearwar'dly extending shoe portion which engages the finished surface of the.

workpiece. The body is provided with a handle for manipulating the tool, an electric motor mounted on the ice amount of material removed from the work piece in one pass of the plane. The body portion of the frame is also provided with a chip compartment arranged forwardly of the cutter compartment and having communication therewith so that any large chips or spinters removed from the work piece by the cutter will be discharged into this chip compartment.

The body portion of the frame is indicated at 10, and the frame is formed with a rearwardly extending shoe portion 11, the under or bottom surface 12 of which is machined smooth for sliding engagement with the surface being planed. The frame is provided with a split handle onehalf of which, as shown in Figure 4, is formed integral with the frame and has a portion 13 incliningforwardly and upwardly and merging with the forwardly and downwardly inclining portion 14 joining the top wall of the body portion 10. The handle is completed by a mating section 16 secured to the integral handle portion 1314 by screws 17 threading into bosses 18 formed in the integral portion of the handle. These mating sections form a hollow handle portion-in which the motor switch 20 is positioned, and which is actuated by a trigger member 21. Power is supplied to the motor, mounted in the housing 22, through a cord 23 provided with a grip member 24 fixedly secured in the rear lower portion of the handle, see Figure 4.

The body portion of the frame is formed with a cutter compartment 25 and a chip compartment 26, these compartments extending transversely of the frame and being separated by a partition rib 27, see Figures 3, 5 and 8. A depth adjustment shoe 39 is mounted on the forward end wall 31 of the chip compartment 26. The shoe 30 is formed with a vertical wall 32 and a forwardly extending horizontal portion 33. A reinforcing rib 34 is provided at each side of the shoe. The vertical wall portion 32 is formed with a slot 35 to sl-idably receive the heads of 'the pins 36 mounted in the front wall 31 of the frame.

The shoe is adjusted vertically on the pins 36 by a cam member 37 rotatably mounted upon a stud screw 38 threaded into the wall 31, and secured by a jam nut 39, see Figure 4. The cam member 37 is provided with a knob having an arm portion 40 to effect convenient rotation of the cam on the stud 38. The shoe has a rearwardly extending portion in the form of a plate 42 aifixed to the shoe as by screws 43. This plate extends rearwardly and forms a bottom wall for the chip compartment 26, and terminates substantially in registration with the lower edge of the partition member 27, the partition member terminating short of the plate 42 to provide a passage 45,'see Figure 4, for the discharge of chips and splinters removed from the Work piece by the cutter 46, which is rotated in a counterclockwise direction, Figure 5.

The chip compartment 26 is formed at its inner end with a wall structure 50 formedwith an aperture 51.-

The partition member 27 extend-s transversely of the frame in substantially parallel relation to the cutter 46. The top wall 54 and the side wall 55 of the cutter compartment are curved to form a substantially conical sure serves to effect discharge of the shavings produced from Patented Dec. 18, 1956 diate .member158zis';attachedto; the-rear sideiotzthe frame.-. 7 by,.=a stud. fitl sfixedly; secured in: the. aperture, .61, gsee fige.

f in-:th e.:franrdaridsecured;byia nut; 70.3 The .outeniend;

' .7 Figure), 1 .In reference ,to.-Figur.6i9 the. armature shaft,

V fromthetoontiguous"side ofi'theframeandmverl 'ug .,the

pmidway. between the iside= edges pf tairi the erie-1n. angular relation'ltoi the aitiee ofmthef.

heputter.outwardly.throughthe.opentendeofitheqoome. partment 25. I 7

, The motor housing 22 includes an intermediate casting 35-35 The-:intermedia'tegsectionVSS isnsecuredto theemaiaa portion-of. the'housing;22;.byscrewsarrangedin: apertures; 5' 59!;iformedglinzthe:intermediate..memhegreand threading. intoithe maintportion ;0fiithe, housing 22.- Theninterme-w fonnedjin: the :inner end:.wall;;50 'ofithehchip .compa-rt: J

mentandis seemed/thereto as,by'.-:nut.;62r.-; The: interme diate member. .is alsov jforrned withaa. rearwardhe extend:;; ingearmsfik formedzwith ia reqtangalar SE65; .@A.=rec:... 'tangularsblockl efi-iis 1: slidably mounted :ilIfthe aperture 65 offthe'arm and is provided withmcirculara boreto re.-:.-

cjeite a, cam portion .167; formeizon. a stud .68 ournalled of,.thea1stud;is formed;.with;a .handle -portion;.71. t0 reflect convenientzrotation-ofi.the cam; 67;. With this. arrange:

f merit; ;the motor housingzis moyerlgvertically aboutathe; pivot; 6% to. provide adjustment; -s0:;that' the .outer iedgesa of ithe .cutte i blades are; positioned:inithe splane of] the: bottom surface .12 of 1 the ,rear rsupporting shoe. V The. armature shaft :77? of the motor is -.journ al,led-.in,;an;;anti-. friction: bearing 74; mounted in' the intermediate ,rfiember; 58,--,the shaft. extending through ethezbearin'gsand forme; ing igan arbor on which the .cutterJAfi; ;is.;,detachab1y; 556;; .cured: asaby anut .75.; A fan 77;, issfixed. to thearmature. shaft .within, the intermediatemember 15$ :andiunctionsto eifeet air-flow axially. through,,the motor. and;which is... dislchargedjthrough. apertures .78gformed in the. bottom. portion of the inclined; wall :surface .80; of Lthe. member; 58; seeFigures. 3 and 9.; The intermedia'tememberiS:is. also formed with an'aperture. 81 which-is positioned in; registration. with; the. aperture. .51 formed 'in. the. end; wall 5010i .the. .ch'ip compartment; In; order2 .togproyide a heavy,- aii: ,blastzfor. discharging; through -the apertilnesi fil, 51, the member 53 is ,iormedwitha. ibzportionrls'z seei 732 rotates in:a1clockwise directionglhexrib iSZ LeXtendihg;

: towardlthe ,fan-and; thusprovidinga. partition. member V to.ie'tlieet.:dis' charge-10f thewairjiset in motion throughathe aperture sht' f I V In; the} operation, .of-. .the,.fplane,. anylarge. chips-jot] plinters are diseha gedbys the cutter thrcughrthe. passage;

V I 45,-Figure 5,. .into thechip compartrnentand the:strong uppert -portion sr-of. theputter; andtchippompartmentfin2"' 26', This, outer wall; portion 87 is. formedfliiitha ld epend v .portiomfifizpositione a i egis ratiQmwi h.the cutt r...

' 46 ,to.,provide;aguard; tl1erefo'r.,. Therdepending. portion,

. 88=;i appreciably. shorter. injengthihanthe. mam-waistofi;fhQ-Q 1lIi,; iih its cends.;te'rminating in .-:.spa ced rela J tion ltorheistdeewallj5511f the-putter. compartment; and... no the f rontjendwalifi li ofthe chipicornpartmeug;thereby; providing-tamplespace for the, ,,dis,chargelof;shavings and.

chips fi0m;;these compartments a'nd-s -yetl.serves v to etiee' tively guardsthe cutterb 'I'hBQClQSnrememberisgfomierl; iw t 'a uhflfi nn naa. tinuat fo i e Pa t n b eerzpa i n "a t e odu ithe... s apqr a: she H i tonne th1a nw rd yextendin p o tiQIig. 931j of .somew hat conicalj form on aniii. arraqige;;l

i .jrame and-mowing. spaced rearwardly from. the. handle whereflthe team. :23; enterethe samel; This; projection 932m employedrto; Imam:

frame.-

That is; the cord -'or; {the' grip ;portion 24- thereoff' j is positior' edon one-side name other ofrthe 'projection eme g ng;

over which 7 gethe-r-..;in adjusted position "ja frar'nje formed-at its f orward Iendj ith'a bod'y portiofii andhaving-a supporting: shoe p'ortioh extendin with;.a"cutteacompartment and af cihi V r V compartments extendingtransversely t theframe. and- 'being;separa'ted byiapartition' member arranged i'n'spaee work being planed,'in whieh-kptosition the cord has a nd ncy a a e fi e d eor thesi ot; LWQLK. pieqe.

i e .plane was zinitially mov .,1i1; the' coin-3 mencemen'tfof'the cut or planing operation; I

The .intermedia'temotor housing: ection 1.5.8 i Q. imd.. withfan aperture 94 iii-the. .uppenportionlheteotL-arid' which is arranged inregistratio'n: with. an ,apertureLJS iathebflxewfiqn 10 a d whie bommunie with th e'iiiteiior of the handle structure; 5 These "apertures provide a passageimi'yvires-r96 Q7, extending-to fthe motor.- With this arrangement; all WiIiHg'iS enclosed.

The plane is provided with. thef conventional guide laseuas 'rpLOYidQd. with bra k ts QQQm rmtQQ-o n LR Y-P Pins; 10,0 earriedi kbraakets I liQ r to t e of :the'eframe, .as, by {screws 10 2, This argange mite-angular. adjustment ofat fi-g l qa-ztl iifisi 5 c k del tood. .Theb .Qkets..9 a1 L e emP byaw n nu s 0%..

What kelaim'is:

-,1. A--.. rtab1etpowere pera ed.w odpl ne q ut oef; f

a tram termed atits', forw r v nd th a body romeo 1 and havinga supporting-shoe portion extending rearward? 3 y from s t o yj nrs idbo rpor i nibeingiqrmede with. a acnttere. compartment [and i a separate .,chip v corn 7 partmentlocated. forward.of;SaidQcutter com aItInent the,

. lowerrportions of said compartmente being 'in; communi,-.-'

cation said: compartments; extending .transyersely; of, the; frame..and being .open .at .likeLends. for. the; giischalrge ofi shavinggand chip s.therefrom saidgcutter compartment,

having. an. opening in the bottom wallthereoLJa-motor;' mounted. on the frarneQatf'thdends ofesai'dacompartmentsg oppositettoasaid likeendaandhavinga powL shaft extending. into said. critter compartment, acutter mounted; on said shaft andb ein gr exposed throughthe openinginl; the bottom.- wall of saidic'utter.compartmenhiandza depth adjustmentshoemounted. at the forward endof saidbodyiportion for 'm'overhen't; .yertisally; toward land .from .iathel- V plane-of.saidlsupportinggshoei:

22. 'A-portable power-operated.

discharge of shavings and chips. therefrom, said cutter.

v compartment-havingan openingin the bottomwall -there of,-a-motor housing mounted on the-frameat the-ends or; 4

said compartments opposite to s'aid lilrejends and exer ingIjo'ut'wai'dIy -from-thebodyportionof'the'frame,.a motor. I V

mounted in said housing and having a power s'hatt exte'n inginto said cutter compartnient ascutter: mounte'd 'on said 'sjhaft and rbeing expo sed through theopening in: bqttom walhof said biitter compartmente and a depth -adsa dg ur in Sh .'3 A =portable'fpGiver-operated wood planejoomprising ly-fi onrsaid' bodyportioii,isaid;-body;po ioijibe ng for'm d comp artment; said.

relatioi upwa'r dliy from theplane oii saidz silpporting shoe said eonipartmentsjbei-n'gaopen; atslikelendoiatgonezi'side I ood planecomprising. a frame-formed;at its -forward end with a. body portioni i and having asupporting shoe portion extendingrearwa'rd V J ly 'fromsaid body portion, said body,portionbeingiormed;

.; wit h e cutter compartment' and: a chip compartment are.

,range 'd in adjacency theretmanmbeing separated from V saidcutter compartment by a substantiallyvertically dis posed partition membenthe lower edge of said partition-- member terminating in spaced relation'to. the planeoff I saidsupporting shoe, said eompartments extending' transversely of'the'framev and being open at Iikeends for the.

the frame for the discharge of shavings and chips, a motor housing mounted on the opposite side of the frame and extending outwardly from the body portion thereof, a motor mounted in said housing and having a power shaft extending into said chip compartment, said housing being adjustable toward and from the plane of said supporting shoe, said chip compartment being formed with an opening in the bottom wall thereof, a cutter mounted on said shaft and being exposed to the opening in the bottom wall of the cutter compartment for engagement with the surface being planed, and a depth adjustment shoe mounted at the forward end of said body portion for movement vertically toward and from the plane of said supporting shoe.

4. A portable power-operated wood plane comprising a frame formed at its forward end with a body portion and having a supporting shoe portion extending rearwardly from said body portion, said body portion being formed with a cutter compartment having top, rear and bottom walls, and a chip compartment located forward of said cutter compartment, said compartments extending transversely of the frame and being separated by a partition member forming the forward wall of the cutter compartment, said compartments being open at like ends at one side of the frame, a motor mounted on the frame at the ends of said compartments opposite to said like ends and having a power shaft extending into said cutter compartment, the bottom wall of said cutter compartment being formed with an upstanding ridge spaced rearwardly from said partition, the top, rear and bottom walls of said cutter compartment being of substantially conical formation diverging toward the open end of the compartment, a cutter fixedly mounted on said shaft in the cutter compartment and being positioned for rotation thereby between said ridge and said partition, the lower edge of said partition terminating in spaced relation to the plane of said supporting shoe, and a depth adjnstment shoe mounted at the forward end of said body portion for movement vertically toward and from the plane of said supporting shoe.

5. A portable power-operated wood plane as defined in claim 3 and including cam means carried by the body and operable to effect adjustment of said motor housing toward and from the plane of said supporting shoe.

6. A portable power-operated wood plane as defined in claim 3 including cam means carried by the frame and operable to adjust said motor housing and said depth adjustment shoe toward and from the plane of said supporting shoe.

7. A portable power-operated wood plane comprising a frame including a body portion and asupporting shoe portion extending rearwardly from said body portion, said body portion of the frame being formed with a cutter compartment and a separate chip compartment located forwardly of said cutter compartment, said compartments extending transversely of the frame and being open at one side thereof for the discharge of shavings and chips from said compartments, a motor mounted on the opposite side of the frame from said compartments and having a power shaft extending into said cutter compartment, a cutter mounted on said shaft for rotation thereby in said cutter compartment, said chip compartment having communication with said cutter compartment, and the end wall of said chip compartment adjacent said motor being formed with an aperture, the end wall of said motor housing contiguous to the end wall of said chip compartment being formed with an opening in registration with said aperture, a fan mounted on said shaft and operable to discharge an air blast through said aperture toward the open end of said chip compartment, and a depth adjustment shoe mounted on the forward end of said body portion for movement toward and from the plane of said supporting shoe.

8. A portable power-operated wood plane comprising a frame formed at its forward end with a body portion and having a supporting shoe portion extending rearwardlyfrorn said body portion, said body portion being formed with a cutter compartment having top, rear and bottom walls, and a separate chip compartment positioned immediately forward of said cutter compartment and having communication therewith, said compartments being open at like ends, the top and rear wall portions of said cutter compartment being curved and diverging toward the open end of the compartment to provide a substantially conical formation, said chip compartment including a closed end wall formed with an aperture, a motor housing mounted on the frame at the ends of said compartments opposite to said like ends and extending outwardly from the body portion of the frame, a motor mounted in said housing and having a power shaft extending into said cutter compartment, the bottom wall of said cutter compartment being formed with an opening, said motor housing having an aperture positioned in registration with said opening in said chip compartment, a cutter mounted on said shaft and being exposed through said cutter compartment opening, a fan mounted on said shaft in said motor housing and being operable Y to discharge an air blast through said chip compartment aperture and motor housing opening to effect discharge of chips from said chip compartment, and a depth adjustment shoe mounted at the forward end of said body portion for movement vertically toward and from the plane of said supporting shoe.

References Cited in the file of this patent UNITED STATES PATENTS 2,583,637 Draper Jan. 29, 1952 2,600,859 Drysdale June 17, 1952 2,672,172 Godfrey et al Mar. l6, 1954

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