Adjustable angle drive for a rotary power toolWord格式.docx

Adjustable angle drive for a rotary power toolWord格式.docx

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Inventor:

PatrickJ.Barkdoll,Pecatonica,IL

Assignee:

NomisLLC,Hampshire,ILtUS）

Notice:

Subjecttoanydisclaimer,thetermofthispatentisextendedoradjustedunder35

U.S.C.154（b）by356days.Appl.No.:

10/367,469

Filed:

Feb.14,2003

PriorPublicationDataUS2004/0159172AlAug.19,2004

Int.Cl.

J?

fiC35706（2006.01）

B25B17700（2006.01）

U.S.CI...........................74/396;

74/417;

173/216;

81/57.26;

81/57.28

FieldofClassificationSearch...............81/53.12,81/472—478,480,446,449,450,57.12,57.26,

81/57.28;

74/423,395—6,416—7,420;

403/4,

403/17,19,86,110—1.131;

173/28,48,216,

173/217

Seeapplicationfileforcompletesearchhistory.

2,465,309A3'

1949Happeetat.

2,545,659A*3'

1951Gmter.........................16'

426

2,553,416A*5'

1951Koett..........................74'

385

2,563,582A*8'

1951Coluccietat..............451'

415

2,589,822A3'

1952Kostka

2,604,795A*7'

1952Ristow........................74'

417

2,620,840A12'

1952Schafer

2,669,162A*2'

1954Arliss.........................409'

144

2,780,942A*2'

1957Babcock......................74'

3,456,458A*7'

1969Dixon........................464'

109

3,724,561A*4'

1973Merrels.......................173'

50

4,332,147A*6'

1982Grech........................464'

4,368,556A*1'

1983Wanneretat.................16'

436

4,643,052A*2'

1987Badiali......................81'

57.28RE32,415E5'

1987Grech

4,912,349A*3'

1990Chang310'

5,533,581A*7'

1996Barthetat..................173'

216

5,863,159A*1'

1999Lasko........................408'

124

6,089,331A7'

2000Christ

6,125,721A10'

2000Yang

6,352,127BI*3'

2002Yorde.........................173'

FOREIGNPATENTDOCUMENTS

DE3634734*4'

1988

DE29512161*1'

1997

DE10001091*7'

2001

*citedbyexaminer

Primary€xamiizcr—WilliamC.Joyce

（74）Attorney,Agent,orf/re—ReinhartBoernerVan

DeurenP.C.

（56）

ReferencesCited

（57）

ABSTRACT

U.S.PATENTDOCUMENTS

1,379,880A*5'

1921Seaborn......................433'

130

1,414,207A*4'

1922Reed.............................285'

2

1,525,091A*2'

1925Savidge....................74'

665R

1,688,410A10'

1928Chayesetat.

1,750,957A*3'

1930Fowler........................74'

425

2,194,062A3'

1940Alberstonetat.

2,348,266A*5'

1944Selby..........................74'

Thepresentinventionprovidesanadjustableangledriveforarotarypowertoolsuchasadrill.Theadjustableangledriveincludesinputandoutputshaftsjoumalledforrotationininputandoutputhousings.Theinputandoutputshaftsarerotatablycoupledthroughgearingandareadjustableamongdifferentangularpositions.

34Claims,6DrawingSheets

10

FIG.1

26*.64

1846i5210

1486"

\50'

”x

20

2842

78é

FIG.278

68

34

54\,,¶

/

524846

2644

24

8624

28

19

4028

FIELDOFTHEINVENTION

Thisinventionpertainstoangularpowertransmittingdevicesandmoreparticularlytoadjustableangledrivetransmissionsforrotarypowertoolssuchasarotarypowerdrillforexample.

BACKGROUNDOFTHEINVENTION

Rightangledrives,suchasgenerallyexemplifiedinU.S.Pat.No.2,620,840,arecommonlyusedinrotarypowerdrillapplicationstoconverttheaxisofrotationby90degrees.Rightangledrivesareusefulinanumberofsituationswhereitisdifficulttoorientormanipulatethedrillintoalignmentwiththeworkingsurfaceorwhereimpedimentsmakeithardforthedrilltoreachthedesiredlocation.Suchrightangledrivesarerelativelysimpleinconstructionandcanbereadilyusedwithallormostcommerciallyavailablerotarydrills.Rightangledrivescanbereadilyattachedanddetachedfromthechucksofrotarydrillstoallowforquickadaptationofthedrill.Theproblemwithrightangledrivesisthattheangleofsuchdrivesarefixedat90degrees.Eitheraworkmancandrillatastraightangle（0degrees）ortheworkmancandrillatarightangle（90degrees）,butnotanglestherebetween.Althoughrightangledrivesincreasetheergonomicsofdrillsbyprovidinganadditionalangulardrillingoption,theproblemwithrightangledrivesisthattheyarestilllimitedinthataworkmanonlyhastwofixedanglestoselectbetweenwhichinsufficientandundesirableformanyhardtoreachspotsorimpediments.Therearemanydrillingapplicationsinwhichvariousintermediateanglesofbetween0and90degreeswouldbebeneficial.

AnattemptatanadjustablepowertransmittingdeviceforadrillisdisclosedinGrech,U.S.Pat.No.4,332,147（Re.32,415）.ToApplicant’sknowledge,thisdevicehasnotmetwithcommercialacceptanceandisnotcommerciallyavail-able.Thereappearstobeseveraldrawbacksandimpracticalitiesrelatedtothisdiscloseddevice.Mostnotably,thisdeviceappearstorequirefasteningofthedevicetothedrillbody.Thus,thedevicewouldnotappeartobereadilyusablewithmanycommerciallyavailabledrillsandinfactwouldbelimitedtoonlydrillshavingsuitablemountingcapabil