close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2115579

код для вставки
April 26, 1938.
T. s. HANNAFORD
2,115,579
INK ROLLER SOCKET FOR PRINTING MACHINES
Filed Dec. 20, 1933
m
a
ZA2
a
m
m
“wk
4/7N\ W
0\
Patented Apr. 26, 1938
2,115,579
UNITED STATES
PATENT OFFICE
2,115,579
INK ROLLER SOCKET FOR PRINTING
MACHINES
Thomas S. Hannaford, Winthrop, Mass., assignor,
by mesne assignments, to R. Hoe & 00., Inc.,
New York,- N. Y., a corporation of New York
Application December 20, 1933, Serial No. 703,264
5 Claims.
comprises a shank or plate 10 which is slotted as
ject the provision of improved mechanism of the
shown) suitable for fastening same to a portion
of a printing machine. The shank It! has a wid
ened portion or head 12, having a semi-circu
lar or concave recess I3, registering with a simi
lar opposed recess M, in a cap or upper section
to free the roller or relieve the same from pres
sure when not in operation, and the usual thumb
lower section or head 12.
substitution of a locking mechanism of such type
as to insure against the accidental falling or
slipping of any parts thereof into adjacent por
tions of the machine.
15' It is also an object of the invention to pro
vide a roller socket of generally improved con
l5 which is hingedly connected, as at iii, to the
To the concave re
cessed surface l3 of the head 12, a half bushing
i8 is secured, while to the cap [5 another half
bushing I9 is secured. The upper surface of the
cap I5 is formed with an arcuate recess 21 which
is adapted to receive a cam element, hereinafter
more fully described. The above-mentioned low
er and upper sections l2, l5 respectively, it will
struction, whereby the device will be simple, du
be understood, form in conjunction a socket
rable and inexpensive in construction, as well
as convenient, practical, serviceable and ef?cient
member l1 having an opening which receives
in its use.
the shaft or journal of a roller (not shown).
In order to lock or secure the two sections of
With the foregoing and other objects in view,
which will appear as the description proceeds,
the socket l1 together and in operative position
to support the roller shaft mentioned above, and
the invention resides in the combination and ar
rangement of parts, and in the details of con
to free same when the roller is not in operation,
struction hereinafter described and claimed, it
being understood that various changes in the
precise embodiment of the invention herein dis
locking means comprises a link or member 22, 25
rotatably mounted on a stud 23, threadedly en
gaged in the head l2 of the socket. As best
closed may be made within the scope of what
shown in Figure 3, the head 12 is provided with
is claimed without departing from the spirit of
3 O the invention.
The preferred embodiment of the invention is
illustrated in the accompanying drawing, where
in:
Figure 1 is a side. elevational view, partly in
35 section, with parts broken away, ‘of an embodi~
ment of the invention, showing the device in
operative position for rotatably supporting the
shaft of an inking roller;
Figure 2 is a view similar to Figure 1, but
40 showing the socket in relieved or “sprung” posi
tion thereby freeing or releasing the shaft of the
printing roller;
Figure 3 is a front elevational View as seen in
the direction of the arrow 3 of Figure 1;
Figure 4 is a top plan view of the locking arm
as seen in the direction of the arrow 4 of Fig
ure 1‘; and
.
Figure 5 is a fragmentary side elevational View
of the device showing the locking mechanism pre
liminarily swung to a position where further an
gular movement of same in a counter-clockwise
direction, will completely free the cap of the sock
et to permit the withdrawal of the printing roll
er from the machine.
55
at H to receive a screw or other means (not
character indicated.
A more particular object is to provide a roller
socket assembly of a design and construction
whereby a simple movement is all that is required
10 nut or equivalent element is eliminated by the
45
((31. 308-75)
This invention relates to roller sockets for
printing machines and has for its principal ob
_
As shown in the drawing, the unit or assembly
a latch or locking means is provided.
O
The said
a slot or groove 24 which is adapted to- accom
modate the link 22, there being a slot 25 formed cc 0
in the cap [5 which registers with the slot 24
in receiving the link 22, as clearly shown in Fig
ures 1 and 2. The link 22 is threadedly engaged
with a head 26 which latter is provided with
trunnions 21, the said head 26 having a set screw
28 which serves to prevent the head from turn
ing on the threaded portion of the link 22. The
trunnions 21 are rotatably received in openings
or holes 29, provided in end portions of a pair
of plates 30, 3| which are joined by studs or
screws 34, 35 and form a locking arm. The said
end portions on the plates 38, 31 are recessed or
shouldered to provide a pocket or slot 36 Which is
adapted to accommodate the head 2% of the
link 22.
45
By inspection of Figures 1 and 4, it will be
observed that the plate 30 is provided with
a handle‘ 31, while the end portions of the plates
30, 3|, mentioned above, are flared or extended
to form an arcuate shaped head or cam 38 which
is received in the arcuate recess 2| of the cap 15
referred to above. By inspection and compari
son of Figures 1 and 2, it will be noted that when
the handle 31 is swung to the right, as in Figure 1,
the cam or eccentric 38 will be effective to bring 55
2
2,115,579
the two half bushings l8, [9 together to opera
tively support the shaft of the roller (not shown).
It will be understood that owing to the resilient
nature of the material of which inking rollers
are made, when the handle 31 is swung to the left,
as shown in Figure 2, the said roller shaft will
of the feature last pointed out, the present de
exert a pressure suf?cient to thrust the cap 15
vice which has no loose elements, such as, the
thumb nut of the locking mechanism commonly
upwardly to the extent indicated in Figure 2.
Further movement of the handle will initially
10 cause the cap IE to be pressed downwardly by
the cam 38, as shown in Figure 5, thereby per
mitting the handle 31 and the link 22 connecting
it to the head l2 of the socket, to be moved com
employed cannot become detached and drop into
the operating mechanism, and it provides a sim 10
pli?ed and ef?cient construction for performing
the functions indicated.
It will be understood that the invention may be
pletely away from the cap l5, for the purpose of
embodied in other speci?c forms without depart
lifting or swinging the latter out of engagement
ing from the spirit or essential attributes thereof,
with the shaft of the roller.
The slot H which is provided in the shank II],
and it is therefore desired that the present em
bodiment be considered in all respects as illus
it will be understood, permits the convenient
trative and not restrictive, reference being had
to the appended claims rather than to the fore
going description to indicate the scope of the
invention.
introduction of a screw therethrough in order to
20 fasten the entire roller socket unit 2| to the
frame of the printing machine. In order to
facilitate manipulation of the cap I5 when re
quired, a handle 39, formed integrally therewith
is provided. The cap may also have a stop as at
25 4|, in order to limit its angular movement in a
clockwise direction.
The general function and manner of operation
of the device has been in large measure indicated
30
said handle is moved in a counter-clockwise di
rection from the position shown in Figure 1 to
the angular position shown in Figure 2, the cam
surface 38 will still be effective to maintain the
cap in the position shown in Figure 2. By reason
from the foregoing details, but will be more fully
understood by the following brief explanation:
Assuming an ink roller shaft (not shown) is ro
tatably arranged in the Socket [1, in the position
shown in Figure 1, and further assuming that a
second socket of similar construction is secured
to the printing machine at the other end of the
shaft of the said roller, the printing roller may
now function in the customary manner.
When
it is desired to free the shaft of the printing roller,
as for example, when the machine is out of oper
40 ation, the swinging of the lever or handle 31 into
the angular position shown in Figure 2 will su?ice
to permit the natural spring of the roller to raise
the cap [5 as shown in the last mentioned ?gure,
thereby relieving the roller of the normal oper
ating pressure which, if maintained during such
time as the printing machine remains idle, will
tend to produce a “flat” on the comparatively
soft or pliable composition material customarily
covering the metallic core of the roller.
It will be noted that when the handle 31 is
50
moved in a clockwise direction from the position
shown in Figure 2, the camv surface 38 on the end
portion of the plates 30, 3 I , as pointed out above,
will move over the adjacent surface of the re
55 cess 2|, thus pressing down or biasing the latter
into position to bring the half bushings together
in order to form a socket (Figure 1) for opera
tively retaining the roller shaft (not shown). In
this position, the cam surface 38, by its frictional
or clamping engagement with the cap I5, is de
signed and adapted to prevent accidental dis
engagement of. the latch or locking means from
the cap l5, thereby retaining the latter in oper
ative position and secure against accidental open
65 ing until the handle 31 is again manipulated.
The con?guration of the cam surface 38 is prefer
ably such as to provide a still further biasing or
clamping pressure when moved in a clockwise direction beyond the position shown in Figure 1.
70 rl‘he fully closed or looking position of the lever 31
(Figure 1) , it will be understood, may be adjusted
or altered by means of the link 22, the threaded
portion of which latter may enter the head to a
variable extent, thereby bodily moving the cam
75 surface 38 relatively to the cap I 5. When the
What I claim is:
1. In a socket for sup-porting a shaft, separable
sections hingedly secured together at one side
thereof, means disposed at the other side to retain 25
said sections in shaft enclosing relation and at
varying degrees of separation with respect to each
other to permit the shaft to be supported in a
plurality of positions, said means comprising a
link secured at one end to one section and an arm 30
swingably secured to the other end of said link,
and means operable by said arm and engageable
with the other section to permit and limit the
separation of said sections when said arm is
swung in one direction and to clamp said sections 35
together when said arm is swung in the other
direction.
2. In a socket for supporting a shaft, separable
sections hingedly secured together at one side
thereof, means disposed at the other side to retain
said sections in shaft enclosing relation and at
varying degrees of separation with respect to each
other to permit the shaft to be supported in a
plurality of positions, said means comprising a
link secured at one end to one section and an arm 45
swingably secured to the other end of said link,
means operable by said arm and engageable with
the other section to permit and limit the separa
tion of said sections when said arm is swung in
one direction and to clamp. said sections together
when said arm is swung in the other direction,
and means associated with said link to vary the
operable effect of said last named means.
3. In a socket for supporting the shaft of a
printing machine roller formed of substantially 55
resilient material and normally under pressure
when in operation, a pair of separable bearing
sections hingedly secured together at one side,
and means to releasably retain said sections to
gether at the other side of the shaft to con?ne 60
said shaft therebetween, said means including an
arm secured to one section and being in operable
engagement with the other section, said arm
being mounted to swing in one direction to move
said sections together into shaft con?ning position
whereby the roller is disposed in its normally
under pressure position, and to swing in the other
direction to permit separation of said sections
into another shaft enclosing position, to permit
release of the normal pressure upon the roller 70
whereby pressure strains upon the resilient ma
terial will be released.
4. In a socket for supporting a shaft in a plu
rality of positions, in combination, separable shaft
receiving sections hingedly secured together at 75
2,115,579
one side thereof, an arm having a circular portion
on one end, the peripheral surface of which is
adapted to engage one section, a link pivotally se
cured to the circular portion eccentric to the pe
ripheral surface of said portion, and a curved seat
formed on the section engaged by said portion to
receive the same, whereby swinging of the arm
into one position will clamp a shaft between the
sections and swinging of the arm into another
10 position will unclamp- the shaft.
5. In a socket for supporting a shaft in a plu
3
is adapted to engage one section, a member piv
otally secured to the circular portion of said arm
eccentric to the peripheral surface thereof, a link.
pivotally secured at one end to the other section
and being adjustably secured to said member to
permit variation in the distance between the con
necting points of the link with the member and
section respectively, and a curved seat formed on
the section engaged by the circular portion of said
arm to receive the same, whereby a shaft may be 10
supported between the sections clamped between
rality of positions, in combination, separable
shaft receiving sections hingedly secured together
the same when the arm is swung in one direction
at one side thereof, an arm having a circular por
other.
15 tion on one end, the peripheral surface of which
and unclamped when the arm is swung in the
THOMAS S. HANNAFORD.
15
Документ
Категория
Без категории
Просмотров
0
Размер файла
457 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа