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Патент USA US2126537

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2 1, 2 6 5’ 3 7
Aug. 9, 1938.
H. P. CLAUBERG
v
FOLDING MECHANISM FOR PRINTING MACHINES
Filed Aug. 51, 1935
2 Sheets-Sheet 1
INVENTOR.
ug. 9, 1938. \
v
H. P. CLAUBERG
FOLDING MECHANISM FOR PRINTING MACHINES
Filed Aug. 51, 1955
2 Sheets-Sheet 2
2,126,537]?
Patented Aug. 9, 1938
UNITED STATES PATENT OFFICE"
FOLDING MECHANISM FOR. PRINTING
’MACHINES
Herman P. Clauberg, Hasbrouck Heights, , N. J .,
assignor to R. H0e’& Co.', Inc., New York, N.‘ YL,
a corporation of New York
I
'
Application August 31, 1935, seriallNo, 38,673
12 Claims.
This invention relates to printing machines
and more particularly to folding mechanisms for
folding products of the printing machine either
singly or in groups.
The invention as herein illustrated is particu
larly applicable to rotary folding mechanisms,
wherein cooperating cylinders are rotated to
gether and products‘ of the printing machine,
generally in the form of printed sheets, are col
10; lected, either as single products or in groups of
products on one cylinder and are suitably folded
and removed by the other. Heretofore it has
been necessary, in many instances, to make time
consuming and inconvenient changes in the fold
151 ing mechanisms of printing machines whenever
it was desirable to change over the mechanisms
to collect and fold a plurality of products after
it had been operated to fold but single products.
These required changes often necessitated the
2.0 provision of comparatively complicated mecha
nisms and a plurality of‘ interchangeable parts
whereby the initial cost, and the operating ex
pense were undesirably high.
The present invention contemplates, primarily,
25, obviating the above inconveniences and expenses
by the provision of a comparatively simply con
structed and arranged, cooperating pair of cylin
ders, one of which collects the printed products,
and the other, in cooperation with the ?rst, folds
them and removes them therefrom either singly‘
or in groups.
'
-Another object is to provide, in a collecting
and folding mechanism, means whereby the same
may be readily and expeditiously changed‘ over
from an adaptability to collect and fold single
products to the ability to collect and fold. a group
of such products.
Still another object is to provide a collecting
and folding mechanism for a printing machine
40' wherein the number of the several parts, thereof,
will be reduced to a minimum, may be disposed
and assembled in operable positions, and not
require removal therefrom, when the mechanism
is to be operated to collect and fold single or a
plurality of products, whereby the mechanism'as
a whole will be more efficiently operable and
sturdier in structure.
A further object is to provide in a collecting
and folding mechanism, of the type under con
50; sideration, folding means including cooperating
and removable product gripping or folding jaws
constituting the only parts requiring removal
from the mechanism to effect variations in the
number of products collected and folded thereby.
With the foregoing and other objects in view,
55
which will appear as the description proceeds;
the invention resides in the’ combination and
arrangement of parts, and in ‘the details of con
struction hereinafter described and claimed, it
being understood that ‘various. changeslin the 5
precise embodiment of the invention herein dis
closed may be made within the scope of what. is
claimed.- Without departing frointhe spirit of the
invention.
-
'7
The preferred embodiment of the invention‘ is 10
illustrated > in
the
wherein»:
‘
accompanying
drawings,
I
Figure .l is a transverse- section through the
cooperating parts of a pair of cylinders con
stituting. a collecting and folding mechanism 15
embodying the “features of this- invention, the
section being taken on line 2—2 ‘of Figure 4 but
showing certain‘ parts thereof in a different oper
ating position;
Figure 2 is a transverse section on line 2—-2 20
of Figure 4;-
‘
,
.
Figure 3- is a section similar to Figure 2 but
with certain parts omitted fora purpose to be
hereinafter disclosed;
'
Figured is a plan View of a portion of one of 25
the cylinders, the one hereinafter referred‘ to.
as the folding cylinder, looking generally in the
direction of arrow 4- in Figure 2; and
\
Figure 5 is an end view, in greatly‘reduced scale,
of a pair of cooperating cylinders to more or less 30
diagrammatically illustrate the operation of the
mechanism of this invention.
The embodiment selected to illustrate the
features of this invention will be understood to
form a part of a printing. machine to which the 35
printed products or sheets are transmitted for
collection- and folding. It will be further under
stood that the collecting cylinder or roll ll ‘pref
erably has a plurality of product impaling pins
or other well known product retaining devices, 40
such as grippers thereon, although for the pur
pose of‘ the description of this invention such
devices have not been shown.
'
'
The cylinder H is generally provided with a
plurality of tucking or ‘folding blades l2. suitably 45
mounted thereon and whichuextend generally
radially from the periphery‘ thereof. The blades
l2, it is understood, are disposed about the pe
riphery of the cylinder, and spaced about the
same, to be operable upon a printed product at 50‘
the portion thereof where the fold is to occur.
It may be said that the blade‘ forms the means
about which ‘the product is folded.
Thev cylinder‘ or roll [3, cooperating with the
cylinder Hz, a portion only of ‘which is shown, will 55
2
2,126,537
be understood to have a plurality of pairs of
sheet clamping or folding jaws I4 and I5 thereon,
spaced about its periphery to receive the prod
ucts from the cylinder I I and fold them about
the blades I2. The cylinders II and I3 are geared
together, in the usual manner for cylinders used
for this purpose, so that the surface speed thereof
plurality of blades I2, in this instance three, and
that the cylinder I3 is provided with a plurality
of pairs of folding jaws I4 and I5, in this instance
four. Heretofore, in sheet collecting and folding
mechanisms when it was desired to collect and
fold a plurality of products in groups, it has been
the practice to replace the various parts of the
is substantially equal. In the present instance, mechanism to make rearrangements to provide
the cylinder I3 is shown larger in diameter than for such operations. In some instances, blades
10 cylinder II. This difference in diameter between > corresponding to the blades I2 were arranged to
the cylinders is for the purpose of permitting be withdrawn into the cylinder carrying the same, 10
the accommodation thereon of more pairs _of at certain periods during the cycle of operation
jaws I4 and I5 on the cylinder I3 than blades’ and in other cases, cams to replace the cam 23
I2 on the cylinder II, whereby various combina
and thereby hold the jaws open during certain
tions may be effected in the collecting and fold
ing of the products as will be pointed out here
inafter.
Herein the jaws I4 and I5 are mounted in re
cesses I6 formed in the periphery of cylinder I3
and extend substantially the length of the cyl
inder. The jaw I4 is secured to the cylinder I3
by screws I'I, while the jaw I5 is mounted on a
shaft I8 journaled at each end of the cylinder
periods were required. These changes were time 15
consuming and a comparatively large quantity of
special parts for obtaining various combinations
were required, which increased the initial cost
and operation of the equipment.
By the provision of readily removable jaw grip
ping members or bars 3I and 32, changes in the
number of products collected and associated to
gether for folding, may be conveniently and in
I3 and extending beyond one end thereof. The _ expensively accomplished, without requiring the
jaw I5 is rockable toward and away from the jaw rearrangement of the operative parts whereby
I4 by means of mechanism including a crank I9 such mechanism may be constructed and as 25
secured to the extended shaft I8 and having a sembled, to form a sturdy structure of compara
cam roller 2I mounted thereon to ride on the cam
surface 22 of a stationary vcam 23. The cam sur
face 22 is formed to cause the crank I9 to rock
the jaw I5 toward the jaw I4 whenever a blade I2
is disposed therebetween. A compression spring
24 is provided and arranged in the cylinder I3
to act against the jaw I5 to constantly urge it
toward the jaw I4 and to maintain the roller
2I operatively upon the cam surface 22. Prefer
ably, the rockable jaw I5 is arranged to move
away from the jaw I4 in the direction of rotation
of the cylinders II and I3 where their peripheries
are adjacent.
Each of the jaws I4 and I5 is herein provided
with a readily removable sheet gripping member
3I and 32 respectively. The members 3I and 32
are, in this instance, in the form of bars which
extend substantially the entire length of the
cylinder I3 and are secured to the respective jaws
by screws 33. The members 3I and 32 are seated
in suitable sockets 34 and 35, respectively formed
in the opposing faces of the jaws I4 and I5, and
are, preferably, of greater dimension radially, with
respect to the cylinder I3 than the portion of the
blade I2 entering therebetween.
Each jaw I4 and I5 is provided upon its outer
surface with a beveled surface portion 36 and 3'!
respectively. The beveled surface 36 of the jaw
I4 extending from the periphery of cylinder I3
downwardly or inwardly toward the center of the
cylinder I3 into the socket 34, and the surface 3'!
of the jaw I3 is likewise extended into the socket
35. The angle of the beveled surfaces 36 and 3'!
is substantially the same as the angle formed by
the products as they are supported on the cylinder
II by the blades I2. The above described forma
tion of the sheet gripping members or bars 3| and
32 with respect to their thickness necessitates suf
?cient depth in the sockets 34 and 35 so that these
sockets and the beveled surfaces 36 and 31, due
to their angular form, provide a clearance space
in the cylinder I3 for thev blades I2 and the
sheets thereon, when the bars 3I and 32 are re
moved, for a purpose to be hereinafter disclosed.
Referring particularly to Figure 5, wherein is
illustrated a pair of cooperating sheet collect
ing and folding cylinders II and I3, ‘it will be
noticed that the cylinder I I is provided with a
tively few parts. The removal of the sheet grip
ping bars 3I and 32, for instance, from the points
4| and 42 of cylinder I3 in Figure 5, will cause the 30
mechanism to operate to collect two sheets 43 at
each blade I2 on the cylinder II before the same
are folded. No change in the cam 23 and no al
teration of the arrangement of the other parts is
required.
35
A product collected by the cylinder I I will ?rst
be carried on the blade I2 past the jaws I4 and
I5 at the point M, the jaws I4 and I5 closing
by action of cam 33, but not gripping and folding
the product due to the omission of bars 3I and 32, 40
as shown in Figure 3. The product 43 in this in
stance freely passes by this point, without inter
ference due to the clearance space formed in the
cylinder I3 by the omission of bars 3! and 32 and
the provision of the beveled surfaces 36 and 37 45
respectively formed on the jaws Ill and I5. This
product is carried on by the cylinder I I, and an
other product is collected in superimposed relation
upon the first, as at 44. When the superimposed
products again tend to pass between the cylinders 50
II and I3, the jaws I4 and I5 of pair 45, for
instance, having sheet gripping members 3! and
32 thereon, close and fold the plurality of prod
ucts 44 and remove them from the cylinder II, as
at 46, and as shown in Figures 1 and 2. Dif 56
ferent combinations are possible by omitting the
gripping bars SI and 32 from various jaws I4 and
I5 and by initially providing the cylinders i I and
I3 with different numbers of blades and jaws than
those shown. For instance, if the bars SI and 32 60
are omitted from all but one pair of the jaws I4
and I5, in the arrangement shown in Figure 5,
four products will be collected and associated
together before folding.
It will be understood that the invention may be 65
embodied in other speci?c forms without depart
ing from the spirit or essential attributes there
of, and it is therefore desired that the present
embodiment be considered in all respects as il
lustrative and not restrictive, reference being
had to the claims rather than to the foregoing de
scription to indicate the scope of the invention.
What I claim is:
1. In a collecting and folding mechanism for a
printing machine, the combination of a pair of 75
3
2,126,537
cooperating cylinders, one of said cylinders hav
ing a plurality of tucking blades disposed in
spaced relation about its circumference and the
other cylinder having a plurality of pairs of jaws
for gripping and removing sheets from the first
mentioned cylinder, disposed in spaced relation
about its circumference, and a sheet engaging
member on each of said jaws and removable
therefrom to cause said jaws to become inopera
10 ble to grip a sheet and remove it from the first
mentiond cylinder.
2. In a collecting and folding mechanism for a
printing machine, the combination of a pair of
cooperating cylinders, one of said cylinders hav
15 ing a plurality of tucking blades disposed in
spaced relation about its circumference and the
other cylinder having a plurality of jaws, dis
posed in spaced relation about its circumference,
and a removable sheet gripping member disposed
20 on each jaw.
3. The combination in a printing machine, a
rotatable cylinder having a sheet directing blade
extending from the periphery thereof, and an
other rotatable cylinder having a pair of sheet
25 gripping jaws at its periphery, said blade and said
jaws cooperating upon rotation of said cylinders,
to present one opposite the other, to fold a sheet,
and a sheet engaging member on at least one of
said jaws and removable therefrom to cause said
by the latter, between the removable portions of
the former.
‘
8. In a sheet folding mechanism for a printing
machine, a cylinder having a blade extending
from its periphery, another cylinder having a pair
of jaws at its periphery, said blade being operable
to direct a sheet in between said jaws, and means
on each jaw adapted to cooperate with each other
and with said blade to grip» and fold a sheet di
rected therebetween, said means being removable 10
to provide clearance space, in the cylinder upon
which said jaws are mounted, for said blade and
the sheet being directed thereby.
9. In a sheet folding mechanism for a printing.
machine, a rotatable cylinder having a sheet 15
tucking blade extending from its periphery, an
other rotatable cylinder having a pair of jaws
at its. periphery, said blade being adapted to co
operate with said jaws when said cylinders are
rotating to tuck a sheet between said jaws for it 20
to be folded thereby, and a removable sheet en
gaging member on at least one of said jaws to
provide a clearance space for the blade and the
sheet being acted on by the blade and to prevent
folding of the sheet by said jaws when the mem 25
ber is removed.
10. In a sheet folding mechanism for a print
ing machine, a rotatable cylinder having a sheet
30 jaws to become inoperative for cooperation with
said blade to fold a sheet.
4. The combination in a printing machine, a
tucking blade extending from its periphery, an
other rotatable cylinder having a pair of coo-p 30
erating jaws at its periphery, said blade being
adapted to cooperate with said jaws when said
rotatable cylinder having a sheet directing blade
extending from the periphery thereof, and an
35 other rotatable cylinder having a pair of sheet
gripping jaws at its periphery, said blade and
said jaws cooperating upon rotation of said cyl
inders to present one opposite the other, to fold
cylinders are rotating to tuck a sheet between
said jaws for it to be folded thereby, and a sheet
engaging member on at least one of said jaws and
35
which is removable therefrom to provide a clear
ance space between said jaws for the blade and
the sheet being acted on by the blade to prevent
a sheet, and means forming part of said gripping
jaws and readily removable therefrom to cause
said jaws to be inoperative for cooperation with
said blade to fold a sheet.
5. In a sheet folding mechanism for a print
ing machine, a rotatable cylinder, a pair of co
45 operating members at the periphery of said cyl
inder normally inoperative to grip a product, and
means securable to said members to grip and fold
a sheet directed therebetween.
6. In a sheet folding mechanism for a printing
machine, a rotatable cylinder, a pair of cooperat
50
ing jaws at the periphery of said cylinder, and a
removable member on each jaw, each member
cooperating with the other to- grip and fold a
sheet directed therebetween.
55
7. In a sheet folding mechanism for a printing
machine, a cylinder having a blade extending
from its periphery, another cylinder having a
pair of jaws at its periphery, each of said jaws
having a removable portion cooperating with each
60 other and with said blade to fold a sheet directed
folding of the sheet by the jaws.
11. In a sheet collecting and folding mecha
nism, the combination of a pair of cooperating
cylinders, one of said cylinders having a sheet
tucking blade and the other cylinder having a
pair of closable sheet folding jaws, a sheet en
gaging member carried by each jaw and adapted
to be secured thereto in position to engage and
fold a sheet tucked therebetween by said blade
and to be removed from such sheet engaging posi
tion to provide a space between said jaws to pre
vent the engagement of a sheet thereby.
12. In a sheet folding mechanism, the combina 50
tion of a pair of openable and closable jaws and
a pair of sheet engaging members positionable
one on each jaw into cooperating relation with
each other to grip a sheet directed therebetween,
one of said members being removable from such 55
sheet gripping position to provide a clearance
space between said jaws for the sheet directed
therebetween.
HERMAN P. CLAUBERG.
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