Adjustable angle drive for a rotary power toolWord格式.docx
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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
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