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8/10/2019 US7032421 - Knurling Tool [Cut Knurler - Swarowski-Optik] - Mayr & Erler, 2006
1/6
( 1 2 )
United S t a t e s
Patent
US007032421B2
( 1 0 ) P a t e n t
N 0 . :
US
7 , 0 3 2 , 4 2 1
B 2
Mayr e t
a ] .
( 4 5 ) D a t e o f P a t e n t : A p r . 2 5 , 2 0 0 6
(54) KNURLING
TOOL
1,044,006 A 11/1912 Boche . . . . . . . . . . . . . . . . . . . . . . . . . 72/199
2 ,2 9 4 ,68 5 A * 9 / 19 42 Nelson
. . . .
. . 72/ 104
I n v e n t o r s :
Werner Mayra
Hannes
2 , 5 7 9 , 6 1 1
A * 1 2 / 1 9 5 1 P O I O I I I I B I I
7 2 / 1 0 8
Erler,
VO1derS(AT)
2 , 7 7 1 , 8 0 7
A
*
1 1 / 1 9 5 6
T r i n k l e . . . .
. .
8 2 / 1 5 8
2 ,7 9 6,7 7 9 A * 6 / 1 9 5 7 Mlller . . . . . . . . . . . . . . 72/ 108
- _
-_ - 3 055 240 A 9/1962
PatZman t
a1.
. . . . . . . . .
.. 72/104
7 3 )
Asslgnee swamvskl Optlk KG
Absam
(AT)
3 , 6 4 1 , 8 5 0
A *
2 / 1 9 7 2
P e t e r s o n
. . . . . . . . . 8 2 / 1 5 8
*
.
(
*
) N o t i c e :
S u b j e c t
t o any d i s c l a i m e r , t h e t e r m o f t h i s
i
* (B32232?
l
awnt 1 5
e x t e n d e d
o r a d l u s t e d
under 3 5 4 , 7 5 9 , 2 4 4
A
* 7 / 1 9 8 8 E n g i b a r o v . . . . . . . . . . . . . . . . .
8 2 / 1 5 4
U - S - C -
1 5 4 ( 1 ) ) by 6 1
d a y s - 5 , 0 4 6 , 2 2 6
A
9 / 1 9 9 1 C h e
2 1 ) A
1
N 1 0 / 7 7 0
564 5 , 9 9 2 , 1 9 9
A
1 1 / 1 9 9 9 G i a n n e t t i
pp
0.: ,
2 2 )
F i l e d ;
F e b _ 4 , 2004 FOR IGN PATENT
DOCUMENTS
DE 1045762
1 2 / 1 9 5 8
6 5 ) P r i o r P u b l i c a t i o n
Data
*
' t d b
Us
2004/0154373 A1 Aug. 1 2 ,
2004
C 1
e
y exammer
( 3 0 )
F o r e i g n
A p p l i c a t i o n P r i o r i t y
D a t a P r i m a r y
ExamineriEd
T o l a n
F e b 5 2 0 0 3 E P ) 0 3 0 0 2 4 5 0 7 4 ) A t t o r n e y , A g e n t , o r FirmiWenderoth, L i n d
o n a c k ,
. , ................................
. L LP
5 1 )
I n t .
C l .
B21D
1 5 / 0 0 2 0 0 6 . 0 1 ) 5 7 )
ABSTRACT
5 2 )
US. l . . . . . . . . . . . . . . . . . . . . .
. .
72/108; 7 2 / 4 8 1 . 6 ; 7 2 / 4 8 1 . 7 ;
72/703
. . . . . .
5 8 ) F i e l d
o f C l a s s i ? c a t i o n
Search
7 2 / 1 0 3
Aknurlmg
t o o l
1 5
p r o v 1 d e d havmg a t o o l
head Wh1ch
a r r 1 e s
7 2 / 1 0 4 1 0 8 4 4 6 3 4 8 1 6 a t l e a s t o n e
k n u r l i n g
W h e e l
a n d Which s
mounted
a d j u s t a b l y
7 2 / 4 8 1 7
7 0 3 .
4 0 8 7 1 4 7 1 5 3 1 8 1 1 8 5 : 2 0 7 / 7 6
o n
a
s h a f t , W h e r e i n
t h e t o o l
h e a d
i s m o u n t e d
o n
t h e s h a f t
407/88 l i n e a r l y displaceably
transversely
With
respect
t o
the
axis of
S e e
a l i c a t i o n
? l e f o r
Com
l e t e
S e a r c h h i s t o t h e
s h a f t , c h a r a c t e r i z e d
i n
t h a t
t h e r e i s
p r o v i d e d
a
? x i n g
pp p r y '
d e v i c e
f o r s e c u r i n g t h e r e l a t i v e p o s i t i o n o f t h e t o o l
h e a d
and
( 5 6 ) R e f e r e n c e s C i t e d t h e
s h a f t ,
t h e ? x i n g d e v i c e
b e i n g a r r a n g e d
b e t W e e n
t h e
t o o l
U . S .
PATENT DOCUMENTS
9 6 0 , 7 6 9
A
6/1 91 0 Armstrong . . . . . . . . . . . . . . . . . . . 7 2 /1 99
head and t h e s h a f t .
1 0
C l a i m s ,
3 Drawing S h e e t s
321614975
6
I
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2/6
8/10/2019 US7032421 - Knurling Tool [Cut Knurler - Swarowski-Optik] - Mayr & Erler, 2006
3/6
U.S. P atent A p r . 2 5 , 2 0 0 6 S h e e t 2
0 f
3
US 7 , 0 3 2 , 4 2 1 B2
F i g . 3
F l y .
4
7 : 1 ;
s i r / 0 . ? Ill
7
8/10/2019 US7032421 - Knurling Tool [Cut Knurler - Swarowski-Optik] - Mayr & Erler, 2006
4/6
U.S. Patent
A p r .
2 5 ,
2 0 0 6
S h e e t
3 o f 3 US 7 , 0 3 2 , 4 2 1
B2
F i g .
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5/6
US
7 , 0 3 2 , 4 2 1
B2
1
KNURLING
TOOL
BACKGROUND OF
THE
INVENTION
The p r e s e n t i n v e n t i o n
c o n c e r n s
a
k n u r l i n g
t o o l
c o m p r i s
i n g a
t o o l head
Which
c a r r i e s a t l e a s t one
k n u r l i n g Wheel
and
Which i s mounted a d j u s t a b l y on a s h a f t , Wherein t h e t o o l
head i s mounted
on t h e
s h a f t
l i n e a r l y d i s p l a c e a b l y t r a n s
v e r s e l y W i t h r e s p e c t t o t h e a x i s o f t h e s h a f t .
K n u r l i n g
t o o l s
c o m p r i s i n g
a t o o l h e a d
Which s mounted
a d j u s t a b l y on a s h a f t
a r e
a l r e a d y knoWn. One example
i s
i l l u s t r a t e d
i n
German
p a t e n t
DE
970
0 9 2 .
I n t h e state
o f
t h e
a r t
t h e
t o o l head o f
t h e k n u r l i n g
t o o l i s mounted on
t h e s h a f t
r o t a t a b l y about
an
a x i s s o t h a t
t h e
t o o l head
can
be
o r i e n t e d
r e l a t i v e t o t h e W o r k p i e c e t o be Worked u p o n ,
W i t h
t h e s h a f t
b e i n g
c l a m p e d , f o r
e x a m p l e ,
t o t h e s u p p o r t
o f
a
t u r n i n g l a t h e
or a CNC-machine.
A n u r l i n g t o o l
i n
Which
t h e
t o o l head s d i s p l a c e a b l e on
t h e
s h a f t l i n e a r l y
t r a n s v e r s e l y W i t h
r e s p e c t t o
t h e a x i s o f t h e
s h a f t i s d i s c l o s e d , f o r e x a m p l e , i n US.
P a t .
N o . 5 , 9 9 2 , 1 9 9 .
The
t o o l head
s
c o m p r e s s e d by a c l a m p i n g
s c r e W
i n
o r d e r
to ?x
t h e
t o o l head i n
p o s i t i o n
on
t h e
s h a f t .
I t h a s
b e e n
f o u n d
t h a t
t h i s
a d j u s t m e n t o p t i o n
f o r t h e t o o l
head
W i t h
r e s p e c t t o t h e s h a f t i s i n p r a c t i c e n o t s u ? i c i e n t t o
p e r m i t a d a p t a t i o n t o a l l t y p e s
o f m a c h i n e s. R a t h e r ,
i t Was
n e c e s s a r y
t o
m a n u f a c t u r e k n u r l i n g
t o o l s
o f
t h e
s p e c i ? e d
k i n d ,
W i t h v a r i o u s s h a f t s , i n o r d e r to c o v e r t h e c l a m p i n g
s i t u a t i o n i n r e l a t i o n t o t h e most common y p e s of
a c h i n e s .
I n a d d i t i o n , When h i g h l o a d i n g s
a r e
i n v o l v e d ,
t h e r e q u i r e
m e n t s f o r a d e q u a t e s t a b i l i t y i n r e s p e c t o f
s h a p e
o f t h e s h a f t
and
t h e t o o l
head a r e o n l y p a r t i a l l y m e t .
SUMMARY OF THE INVENTION
The o b j e c t o f t h e p r e s e n t i n v e n t i o n i s t o p r o v i d e a
k n u r l i n g
t o o l o f a
r o b u s t
s t r u c t u r e ,
Which
can be
a d j u s t e d i n
such a Way t h a t
i t
can
be
used
i n
r e l a t i o n
t o
t h e most Widely
v a r y i n g
t y p e s
o f m a c h i n e s
( f o r
e x a m p l e ,
i n t h e
c a s e
o f
m a c h i n e s
Which r o t a t e
c l o c k W i s e a n d c o u n t e r - c l o c k w i s e )
a n d W h i c h , i n
a d d i t i o n ,
p r o v i d e s
i m p r o v e d
s t a b i l i t y i n
r e s p e c t
o f s h a p e .
I n
a c c o r d a n c e W i t h
t h e
p r e s e n t
i n v e n t i o n , t h e r e
i s p r o
v i d e d a ? x i n g d e v i c e
f o r
s e c u r i n g t h e r e l a t i v e p o s i t i o n
o f
t h e
t o o l h e a d a n d t h e
s h a f t ,
t h e ? x i n g
d e v i c e
b e i n g
a r r a n g e d
betWeen t h e
t o o l
head and t h e s h a f t .
The
t o o l
head
can b e o p t i m a l l y
?xed
i n i t s r e l a t i v e
p o s i t i o n
W i t h
r e s p e c t t o t h e s h a f t W i t h o u t t h e t o o l head o r t h e
s h a f t
h a v i n g
t o b e c o m p r e s s e d
b y a
c l a m p i n g d e v i c e . T h e r e
f o r e ,
W i t h o u t
t h e
p r o v i s i o n
o f a
c l a m p i n g
g a p , t h e
tWo
s t r u c t u r a l components
can be of
a
more r o b u s t
c o n s t r u c t i o n ,
t h e r e b y
a f f o r d i n g
i m p r o v e d s t a b i l i t y
i n r e s p e c t
o f
s h a p e
o f
t h e k n u r l i n g t o o l .
P a r t i c u l a r l y p r e c i s e g u i d a n c e i s
p o s s i b l e
b y m e a n s o f a
d o v e t a i l
g u i d e m e a n s .
I n o r d e r t o b e a b l e t o a d j u s t t h e r e l a t i v e p o s i t i o n betWeen
t h e
t o o l
h e a d
a n d
t h e s h a f t , t h e r e i s p r o v i d e d
a n
a d j u s t i n g
d e v i c e , f o r
e x a m p l e , W i t h an
a d j u s t i n g s c r e W . The s e t
p o s i t i o n c a n t h e n b e p r e f e r a b l y s e c u r e d b y
a
? x i n g
d e v i c e ,
f o r e x a m p l e ,
b y means o f c l a m p i n g
e c c e n t r i c s .
F u r t h e r
a d v a n t a g e s and d e t a i l s
o f t h e i n v e n t i o n a r e
d e s c r i b e d more
p r e c i s e l y
W i t h r e f e r e n c e t o
t h e
s p e c i ? c
d e s c r i p t i o n h e r e i n a f t e r .
BR I E F
DESCRIPTION
OF THE
DRAWINGS
FIG. 1 shoWs a
s i d e
vieW
of an
embodiment
of
k n u r l i n g
( m i l l i n g ) t o o l
a c c o r d i n g
t o
t h e
p r e s e n t i n v e n t i o n ,
20
25
30
35
40
45
50
55
60
6 5
2
F I G . 2 shoWs a vieW i n s e c t i o n t a k e n a l o n g l i n e AiA n
F I G . 1 ,
F I G .
3 shoWs a
vieW
i n s e c t i o n
t a k e n a l o n g l i n e
BiB n
F I G . 2 ,
F I G .
4 shoWs a
vieW
i n s e c t i o n t a k e n
a l o n g l i n e
C4C n
F I G . 3 ,
a n d
F I G .
5
shoWs
a
p e r s p e c t i v e v i e W .
DETAILED DESCRIPTION OF THE
INVENTION
The k n u r l i n g
m i l l i n g t o o l shoWn n F I G S . 1
t h r o u g h
5 h a s
a
t o o l
head 1 c a r r y i n g
tWo
k n u r l i n g
W h e e l s 2 .
As
W i l l be
d e s c r i b e d
i n
g r e a t e r
d e t a i l h e r e i n a f t e r , t h e t o o l
h e a d
1 i s
mounted a d j u s t a b l y on t h e s h a f t 3 .
Each o f t h e tWo k n u r l i n g W h e e l s 2 i s
mounted
f r e e l y
r o t a t a b l y a b o u t an a x i s
4
on
a
p i v o t
p i n 6
Which i n t u r n i s
mounted r o t a t a b l y i n t h e
t o o l
h e a d 1 . The tWo p i v o t p i n s 6
c a n b e
a d j u s t e d by
Way
o f
a
s c r e W t h r e a d e d
s p i n d l e 7
j o i n t l y
b u t i n o p p o s i t e
r e l a t i o n s h i p
i n t h e t o o l h e a d 1 ,
W h e r e b y
t h e
r e l a t i v e
s p a c i n g
o f
t h e t W o k n u r l i n g
W h e e l s 2
i s
a d j u s t a b l e .
S y n c h r o n o u s a d j u s t m e n t i s knoWn
p e r s e , f o r e x a m p l e ,
f r o m
DE
970
0 9 2 .
An r r e s t i n g d e v i c e 1 1
i s
p r o v i d e d i n o r d e r
to
s e c u r e t h e
r o t a r y p o s i t i o n , o n c e s e t ,
o f
t h e p i v o t
p i n s
6 a b o u t t h e a x i s
5 i n
t h e
t o o l head . The a r r e s t i n g d e v i c e 1 1
h a s
a
c l a m p i n g
member 1 2 ,
Which
on
t h e one hand
s
s u p p o r t e d a g a i n s t
an
i n c l i n e d s u r f a c e 1 3
o f
t h e t o o l
head
,
and
Which on t h e o t h e r
h a n d
b e a r s
a g a i n s t t h e p e r i p h e r al s u r f a c e o f t h e
p i v o t
p i n s 6 .
The
c l a m p i n g
member
1 2 i s moved
o r clamped by Way o f
a
screW 14 Which can be screWed
i n t o t h e
t o o l
head
1 . When
t h e s c r e W 1 4
W i t h
s c r e W h e a d 1 4 a )
i s
s c r e W e d i n , i n t h e
h o r i Z o n t a l d i r e c t i o n
a s
shoWn i n F I G S . 1 t h r o u g h 4 , t h e
c l a m p i n g member 1 2 moves
upWardly
due t o t h e i n c l i n e d
s u r f a c e 1 3 and i n a
s i m p l e
manner o i n t l y and s y n c h r o n o u s l y
c l a m p s t h e
t W o p i v o t p i n s
6 ? r m l y i n t h e p o s i t i o n p r e v i o u s l y
s e t by
Way o f t h e
s p i n d l e s c r e W
7 .
When
t h e
s c r e W 1 4
i s
u n s c r e W e d ,
t h e d i s k
9
Which
i s
mounted i n t h e groove 8 i n t h e screW 14 and Which b e a r s
a g a i n s t t h e r e a r s i d e 1 0 o f t h e
c l a m p i n g
member 1 2 e n t r a i n s
t h e c l a m p i n g member 1 2 o u t W a r d l y a n d t h u s a c t i v e l y
r e le a s e s
t h e
c l a m p i n g a c t i o n .
To g u i d e t h e t o o l h e a d 1
W i t h
r e s p e c t t o t h e s h a f t
3 ,
t h e
arrangement
h a s
a l i n e a r
g u i d e means 1 5 Which
e x t e n d s
t r a n s v e r s e l y W i t h r e s p e c t t o t h e a x i s
3 1 1 o f
t h e s h a f t a n d
W h i c h , i n t h e
i l l u s t r a t e d
e m b o d i m e n t b y
Way
o f e x a m p l e , i s
i n t h e form of a
d o v e t a i l
g u i d e means.
P r o v i d e d
a s an a d j u s t i n g d e v i c e f o r s e t t i n g t h e r e l a t i v e
p o s i t i o n
o f
t h e
t o o l head 1 and
t h e s h a f t 3
i s a n
a d j u s t i n g
screW 16
Which
e x t e n d s i n t h e h o r i z o n t a l d i r e c t i o n i n
FIGS.
1
t h r o u g h
4 . The
a d j u s t i n g
s c r e W 1 6 i s
mounted i n t h e s h a f t
3 r o t a t a b l y b u t a x i a l l y i m m o v a b l y a n d e n g a g e s W i t h i t s
s c r e W t h r e a d
? i g h t s
1 6 1 1 i n t o c o r r e s p o n d i n g s c r e W t h r e a d
? i g h t s
1 1 1
o n t h e
t o o l
h e a d
.
T h i s
p e r m i t s p r e c i s e a d j u s t m e n t
of
t h e
t o o l head 1 W i t h
r e s p e c t
t o
t h e
s h a f t 3 .
I n o r d e r t o
p e r m i t p l a y - f r e e movement o f t h e s c r e W t h r e a d ? i g h t s 1 6 a o f
t h e
a d j u s t i n g s c r e W 1 6 i n
t h e
s c r e W t h r e a d
? i g h t s 1 a o f t h e
t o o l
h e a d
1 , t h e a r r a n g e m e n t
h a s
a
p r e s t r e s s i n g
d e v i c e
Which
i s g e n e r a l l y
i d e n t i ? e d
b y 1 7
a n d
W h i c h
u r g e s
t h e a d j u s t i n g
screW 16 i n t o t h e s c r e W t h r e a d ? i g h t s 1 1 1
on
t h e
t o o l
head
.
The
p r e s t r e s s i n g
d e v i c e
1 7
h a s
a s p r i n g 1 7 1 1 and a
p u s h r o d
1 7 b .
A f t e r t h e
r e l a t i v e p o s i t i o n
o f t h e
t o o l
h e a d
1
W i t h
r e s p e c t
t o
t h e
s h a f t 3 h a s been e t by Way o f t h e
a d j u s t i n g
s c r e W
1 6 ,
t h a t s e t p o s i t i o n c a n
b e s e c u r e d by
Way o f a ? x i n g
d e v i c e .
I n t h e p r e s e n t embodiment t h e
? x i n g
d e v i c e
c o m p r i s e s
t W o
s u b s t a n t i a l l y r o l l e r - s h a p e d c l a m p i n g e c c e n t r i c s 1 8 W h i c h
8/10/2019 US7032421 - Knurling Tool [Cut Knurler - Swarowski-Optik] - Mayr & Erler, 2006
6/6
US
7 , 0 3 2 , 4 2 1
B2
3
e a c h e x t e n d i n t h e a d j u s t m e n t
d i r e c t i o n
on b o t h s i d e s o f t h e
a d j u s t i n g s c r e W
1 6 .
By o t a t i n g t h e c l a m p i n g e c c e n t r i c s
1 8 ,
t h e y
a r e c a u s e d t o b e a r s n u g l y a n d ? r m l y a g a i n s t
t h e
t o o l
h e a d 1 a n d
t h u s p r o v i d e
f o r c l a m p i n g t h e
t o o l
h e a d 1 a n d t h e
s h a f t 3 .
T h u s , t h e r e l a t i v e p o s i t i o n o f t h e s h a f t 3
W i t h
r e s p e c t t o t h e
t o o l
head 1
c a n b e
q u i c k l y and
p r e c i s e l y ?xed
i n
a
s i m p l e
manner by Way
o f a d j u s t m e n t o f
t h e a d j u s t i n g s c r e W
1 6 and
s u b s e q u e n t
r o t a t i o n
o f
t h e
c l a m p i n g
e c c e n t r i c s 1 8 .
T h i s
p e r m i t s
a d a p t a t i o n t o
t h e
m o s t W i d e l y
v a r y i n g
t y p e s o f
m a c h i n e s .
I t W i l l b e a p p r e c i a t e d t h a t t h e p r e s e n t i n v e n t i o n i s
n o t
l i m i t e d
t o
t h e
i l l u s t r a t e d
e m b o d i m e n t s . F o r
e x a m p l e ,
t h e t o o l
head
1 may a l s o have a d i f f e r e n t number o f k n u r l i n g Wheels
2 .
The a d j u s t m e n t
a n d
t h e a r r a n g e m e n t o f t h e k n u r l i n g
W h e e l s 2
i n
t h e
h e a d may a l s o v a r y .
I t
W i l l b e a p p r e c i a t e d
t h a t
t h e k n u r l i n g
W h e e l s
2 a r e
p r e f e r a b l y
i n t e r c h a n g e a b l e
a n d
c a n b e
e x c h a n g e d
a c c o r d i n g t o t h e r e s p ec t i v e d e s i r e d
k n u r l i n g e f f e c t .
The i n v e n t i o n c l a i m e d i s :
1 . A n u r l i n g t o o l c o m p r i s i n g :
a t o o l head Which
c a r r i e s
a t l e a s t one k n u r l i n g Wheel and
Which
i s
mounted
a d j u s t a b l y
on
a
s h a f t ,
W h e r e i n t h e t o o l head i s
mounted
on t h e s h a f t l i n e a r l y
d i s p l a c e a b l y
t r a n s v e r s e l y
W i t h
r e s p e c t
t o a n a x i s
o f t h e
s h a f t ,
W h e r e i n
a
? x i n g d e v i c e
i s
p r o v i d e d f o r s e c u r i n g
a r e l a t i v e
p o s i t i o n o f t h e
t o o l h e a d W i t h
r e s p e c t t o t h e
s h a f t ,
t h e
? x i n g d e v i c e
b e i n g a r r a n g e d
b e t W e e n t h e t o o l h e a d a n d
t h e s h a f t , a n d
W h e r e i n
t h e
? x i n g
d e v i c e c o m p r i s e s a t
l e a s t
o n e
c l a m p i n g
e c c e n t r i c o p e r a t i v e
b e t W e e n t h e
t o o l h e a d
a n d t h e s h a f t .
2 .
A n u r l i n g t o o l
a s
s e t
f o r t h i n c l a i m 1 ,
W h e r e i n a n
a d j u s t i n g d e v i c e
i s p r o v i d e d f o r
s e t t i n g t h e
r e l a t i v e p o s i t i o n o f t h e t o o l h e a d
W i t h
r e s p e c t t o t h e
s h a f t ,
Wherein
t h e a t l e a s t
one clamping e c c e n t r i c
c o m p r i s e s a
? r s t
c l a m p i n g
e c c e n t r i c
and
a
s e c o n d
clamping
e c c e n
t r i c ,
W h e r e i n t h e ? r s t c l a m p i n g
e c c e n t r i c
e x t e n d s
i n a n
a d j u s t
i n g d i r e c ti o n and i s d i s p o s e d on a ? r s t
s i d e
o f t h e
a d j u s t i n g d e v i c e ,
a n d
W h e r e i n t h e s e c o n d c l a m p i n g e c c e n t r i c e x t e n d s
i n
t h e
a d j u s t i n g
d i r e c t i o n
and s d i s p o s e d on a s e c o n d s i d e o f
t h e a d j u s t i n g d e v i c e .
25
30
35
40
4
3 . A
n u r l i n g
t o o l a s s e t
f o r t h i n c l a i m
1 , Wherein a
d o v e t a i l g u i d e m e c h a n i s m s p r o v i d e d
f o r
l i n e a r g u i d a n c e o f
t h e t o o l head on t h e s h a f t .
4 . A n u r l i n g
t o o l
a s s e t f o r t h i n c l a i m
1 ,
Wherein an
a d j u s t i n g
d e v i c e i s p r o v i d e d f o r
s e t t i n g a r e l a t i v e p o s i t i o n
o f
t h e t o o l head
W i t h
r e s p e c t t o t h e s h a f t .
5 .
A
n u r l i n g
t o o l a s
s e t
f o r t h i n
c l a i m
4 ,
Wherein
t h e
a d j u s t i n g d e v i c e
c o m p r i s e s a n
a d j u s t i n g
s c r e W e x t e n d i n g i n
an a d j u s t m e n t
d i r e c t i o n .
6 . A n u r l i n g t o o l a s s e t f o r t h i n c l a i m 5 ,
W h e r e i n t h e a d j u s t i n g
s c r e W
i s
mounted
r o t a t a b l y
b u t
a x i a l l y
immovably
i n t h e s h a f t
o r
t h e t o o l
h e a d ,
a n d
W h e r e i n s c r e W t h r e a d ? i g h t s o f t h e a d j u s t i n g
s c r e W e n g a g e
W i t h
c o r r e s p o n d i n g s c r e W t h re a d ? i g h t s on h e t o o l h e a d
o r
the
s h a f t .
7 . A n u r l i n g t o o l a s s e t
f o r t h
i n
c l a i m
5 , Wherein a
p r e s t r e s s i n g
d e v i c e i s
p r o v i d e d
f o r
p r e s s i n g
t h e a d j u s t i n g
screW
i n t o
screWthread ? i g h t s
on t h e t o o l head o r t h e
s h a f t .
8 . A n u r l i n g t o o l
a s
s e t
f o r t h
i n
c l a i m 1 ,
Wherein
t h e
a t l e a s t
one k n u r l i n g
Wheel c o m p r i s e s
a ? r s t
k n u r l i n g W h e e l a n d a s e c o n d k n u r l i n g W h e e l , a n d
Wherein
t h e
? r s t
and
s e c o n d
k n u r l i n g
W h e e l s
a r e
mounted
a d j u s t a b l y on t h e t o o l
h e a d .
9 . A n u r l i n g t o o l a s
s e t
f o r t h i n c l a i m 8 ,
W h e r e i n
a ? r s t
p i v o t
p i n i s m o u n t e d
r o t a t a b l y a n d a d j u s t
a b l y
i n
t h e t o o l h e a d a n d e x t e n d s t r a n s v e r s e l y
W i t h
r e s p e c t to t h e
a x i s
o f t h e s h a f t ,
W h e r e i n
t h e ? r s t k n u r l i n g W h e e l
i s mounted
f r e e l y
r o t a t
a b l y
o n t h e
?r s t
p i v o t p i n
a b o u t a n a x i s
e x t e n d i n g
i n c l i n e d l y W i t h r e s p e c t t o a n a x i s o f t h e ? r s t
p i v o t
p i n ,
W h e r e i n
a
s e c o n d p i v o t p i n i s mounted r o t a t a b l y a n d
a d j u s t a b l y i n
t h e
t o o l h e a d a n d e x t e n d s
t r a n s v e r s e l y
W i t h
r e s p e c t to t h e
a x i s
o f t h e s h a f t ,
a n d
W h e r e i n
t h e
s e c o n d
k n u r l i n g W h e e l
i s
mounted f r e e l y
r o t a t a b l y
on t h e
s e c o n d
p i v o t p i n a b o u t
a n
a x i s e x t e n d
i n g
i n c l i n e d l y
W i t h r e s p e c t t o a n a x i s
o f
t h e
s e c o n d
p i v o t
p i n .
1 0 .
Aknurling
t o o l
a s s e t
f o r t h
i n
c l a i m
9 ,
Wherein
h e a x i s
o f
t h e
?r s t p i v o t
p i n a n d t h e a x i s
o f
t h e
s e c o n d
p i v o t p i n s a r e
p e r p e n d i c u l a r
t o
a n a d j u s t i n g d i r e c t i o n betWeen t h e t o o l
head and t h e
s h a f t .