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Патент USA US3021070

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Feb. 13, 1962
H . SCHURICH
3,021,061
AUTOMATICALLY OPERATING COUNTING MECHANISM, MORE
PARTICULARLY FOR COUNTING ROWS OF STITCHES
ON HAND KNITTING MACHINES
Filed March 2, 1959
2 Sheets-Sheet 1
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Feb. 13, 1962
H. SCHURICH
3,021,061
AUTOMATICALLY OPERATING COUNTING MECHANISM, MORE
PARTICULARLY FOR COUNTING ROWS 0F STITCHES
ON HAND KNITTING MACHINES
Filed March 2, 1959
2 Sheets-Sheet 2
34
36 3132 27
27
32 31 26_
$2
8
8
3,021,061
States”, Patent
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3,021,061
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MACHINES
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Herbert Schurich, Berlin-Frohnau, Germany, assignor to
Karl Steinhof Apparatefabrik, Berlin, Germany
Filed Mar. 2, 1959, Ser. No. 796,400
Claims priority, application Germany Mar. 7, 1958
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2 Claims.
(Cl. 235-91)
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t.
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but is moved to and fro together with the slide and count
er. The fact that actuating of the counter is nevertheless"
COUNTING ROWS OF STITCHES ON HAND
KNITTING
2
the slide as in the previously known counting apparatus‘
MECHANISM, MORE PARTICULARLY FOR
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Patented F eb- 13‘, 196?
tain sense the projection, that is to say the cam member
located in the frame, is not ‘arranged in a ?xed position on
AUTOMATICALLY OPERATING COUNTING
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possible arises from the characteristic rolling movement
of the roller mounted in the frame.
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An embodiment of theinvention chosen by way of ex
ample is particularly described hereinafter with reference
10
to the accompanying drawings, in which:
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FIGURE ‘1 is a view of a counting apparatus for
This invention relates to an automatically operating
counting mechanism, more particularly for counting rows
knitting machines, partly in elevation and partly in longi
of stitches on hand knitting machines.
tudinal section,
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FIGURE 2 is a plan view of the apparatus shown, in‘
Automatically operating counting mechanisms on hand
,j
knitting machines are known; in the known arrangements, 15 FIGURE 1,
a counting mechanism is arranged on the slide of the
hand knitting machine, ‘and during the reciprocating move
FIGURE 3 is a view partly in elevation and partly in'
cross section on line III—III of FIGURE 2,
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.
‘, FIGURE 4 is an end elevation of the counting appara-'
tus mounted on a knitting machine, of which certain parts
cam acts on‘the counting mechanism in such a manner
that a counting ope-ration takes place whenever the slide 20 are shown in section, and
FIGURE 5 is a plan view of the arrangement shown in;
and counting mechanism are moved over this projection.
ments of the slide over the needle bed a projection or a
Usually these projections are arranged in the middle of
the needle bed. But this has the disadvantage that in
FIGURE 4.
.
The counting apparatus constructed in accordance with
the invention comprises a frame 1 in the form of a casing
those cases in which the knitting width is located to the
right or to the left of this projection‘it is'necessary to 25 with a central aperture 2, passing through the frame from
top to bottom. In the side walls 3 of this frame 1,‘
make a stroke which passes beyond the projection located
recesses 4 are provided which extend over almost the
in the middle and which is unnecessarily large when con
whole length of the frame and are bounded at the bottom‘
sidered purely from the point of view of the knitting
by a shoulder abutment 5 and on the two narrow sides ‘by,
process. A further disadvantage is that an operator
knitting without careful attention can easily [forget to 30 abutments 6 which project towards the middle of the
recess 2 of the frame.
, j
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move the slide beyond the projection, since the operator
A roller 26 withtwo stub gaxles 7 is inserted into the"
is attending solely to the knitting process and moves the
interior of the frame; thesestub axles 7 canroll along'on’ ,
slide only over the knitting width located laterally of'the
projection.
In this case, the count is wrong.
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In order to avoid these disadvantages, it has been'pro
posed to arrange the cam displaceably on the needle bed
so that the cam can be adjusted to the appropriate point
the shoulder abutment 5, so that the roller is prevented
On the other
hand the distance of the shoulder abutment 5 from the
bottom edge 8 of the frame is made such that when roller
26 rolls along on the shoulder abutment 5 the roller pe
35 from falling downwards out of the frame.
depending on where the knitting process is going on. But
riphery projects slightly below the bottom edge 8 of the
this arrangement also has not been found completely
satisfactory, because the cam has to be shifted on each 40 frame. Also, the movement of the roller 26 in the longi
tudinal direction is limited by the abutments 6 against
occasion ‘and therefore in this case also it is necessary to
which the stub axles bear when in their extreme positions.
rely on the dependability of the operator, who can easily
The roller is provided, on its periphery, with a rubber
forget to shift the cam to the proper place.
ring 9 engaging in a channel.
All of these disadvantages are avoided by means of the
A step abutment 12 is provided near the top end of the
' present invention, according to which a frame in the form 45
inner surface 11 of each end wall 10 of the frame; the
of a casing is provided on the slide, and a roller is
ends 13 of a cam member 14 are supported on these step
mounted in this casing so as to be movable therein longi
abutments. This cam member is made symmetrical about
tudinally of the slide, and during the reciprocating move
its centre line 15; it is provided with two downwardly
ments of the slide this roller on the one hand rolls on a
rolling track arranged on the needle bed and on the other 50 directed run-up ramps 16 at an obtuse angle to one an
other. The peak 17 of the cam member, which projects
hand rolls at the top on a cam member which is also loose
furthest downwards, is in the middle of the cam member.
in the casing and is directed towards the roller, and the
The whole top surface of the cam member is ?at.
cam member is thereby caused to move upwards and
The run-up ramps 16 do not extend over the whole
downwards and thereby‘to act on the actuating member
of the counter ‘and bring about the counting operation. 55 length of the cam member but merge into ?at end surfaces
extending parallel to the top surface 19 of the cam
It is advisable, according to a further feature of the
member.
invention, to provide the roller with two stud axles one
on each side, which engage in corresponding recesses ex
The frame 1 is closed at the top by a cover 20 on which
a counter 21 of known construction is mounted. A
tending over almost the whole length of the frame and
bounded ‘by an abutment which is in the form of a shoul 60 counter provided with a plunger pin 22 has been found
particularly advantageous. The plunger pin passes
der extending over almost the whole length of the frame,
through a bore 23 in the cover 20 and touches the top
so that the roller is secured ‘against falling out of the frame.
surface 19 of the cam member. As shown in FIGURES
It is advisable to make the cam member symmetrical
4 and 5, the counter has a number of counting discs 28
about its centre, so that the cam member will always be
lifted and the counting mechanism thereby actuated dur 65 which are rotatable about axes and are visible through
windows 29 provided in the casing of the counter 21.
ing movement of the slide in either direction.
The frame 1 is secured laterally to the lock plate 30
The apparatus constructed in accordance with the in
of the lock 24. The lock plate 30 has angularly bent
vention has the advantage that the counting operation is
portions 31 engaging in external guiding grooves in lock
effected quite independently of whereabouts on the needle
bed ‘the knitting process is going 011, provided only that 70 guiding rails 32 secured to the top side of the needle bed
the slide makes reciprocating movements during the
27. Sinkers 34 are mounted for pivotal movement within
knitting process. This arises from the fact that in a cer
slots 33 of the needle bed. Latch needles ‘35 are arranged
3,021,061
3
4
so as to be easily displaceable in further slots between the
sinkers 34. A cam 37 mounted in the lock casing acts on
the inner ends 36 of the sinkers 34, and during the move
ments of the lock each sinker impinging against the cam
of the cam member rest on the abutments 12. It is only
when a change of direction of the movement of the slide
takes place that the roller will again move in the frame
in the manner described above, but from right to left, and
is pivotally moved by the cam. A cam disc 38 used for
the cam member will again be lifted and the counter
adjusting parts of the lock, and a handle 39 used for
moving the lock, are secured to the lock 24.
actuated.
From this description of the manner of operation it
will at once be clear that the counter is actuated whenever
a change in the direction of movement of the slide takes
The frame 1 is secured to the lock 24 in such a manner
that when the vlock is set in place on the knitting appara
tus the bottom edge 8 of the frame is slightly above a rail 10 place, irrespectively of the width of the knitting and of the
25 secured to the needle ‘bed of the apparatus. In this
location of the knitting on the needle bed.
position, the rubber coating 9 of the loose roller 26 rests
I claim:
on the rail 25 and there is a slight gap between the top
1. An automatically operated counting mechanism for
most point of the roller and the ?at end 18 of the cam
counting rows of stitches on hand knitting machines pro
member.
15 vided with a needle bed, comprising a reciprocating slide,
The manner of operation of the apparatus is as follows:
If the slide is ?rst moved in the direction of the arrow
a casing secured to said slide, a loosely mounted cam
member adapted for up and down movement in said cas
A during the knitting process, the roller 26 rolls on the
ing, a rolling track arranged on said needle bed, a roller
rail 25 and at the same time the stub axles 7 move in the
mounted in said casing for longitudinal displacement on
direction of the arrow Brelatively to the frame 1. This 20 said rolling track and ‘on said cam member to cause said
causes the top of the roller to leave one of the flat end
cam member to move upwardly and downwardly upon
surfaces 18 and run on to one of the ramps 16, rolling on
longitudinal displacement thereof, a counter mechanism
this ramp. Because of the inclination of the ramp the left
secured to said casing, said mechanism including a counter
hand part of the cam member 14 disposed loosely in the
actuating pin in contact with said cam member.
frame is ?rst lifted until it touches the bottom surface of 25
2. A counting mechanism as claimed in claim 1, where
the cover 20. Then, ‘as the slide continues to move, the
right hand end of the cam member is also lifted and the
plunger pin 22 is moved upwards whereby the counter is
actuated. ‘In the meantime the roller has rolled past the
in said casing is provided with recesses extending the
length of the casing, and shoulder abutments extending
parallel to the bottom edge of said casing, said roller being
provided with stub axles, and said cam member being
peak point 17 of the cam member and rolls off on the 30 formed as a downwardly directed wedge-like ramp.
other ramp, and ?nally reaches the right-hand position
shown in broken 4lines, in which the top edge of the roller
References Cited in the ?le of this patent
is underneath the right hand end surface 18. At the same
UNITED STATES PATENTS
time, the stub axles 7 now bear against the right hand step
abutment 6, so that as the slide continues to move the 35
1,002,175
roller rolls in the apex of the angle between the shoulder
abutment 5 and the step abutment 6 without imparting
any movement to the cam member. Instead, both ends
1,294,700
Peterson _____________ __ Feb. 18, 1919
1,554,709
Brown ______________ __ Sept. 22, 1925
1,732,706
Wiles _________________ _.Oct. 22, 1929
OSbOI'H ______________ __ Aug. 29, 1911
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