U.S. patent number 3,559,984 [Application Number 04/736,856] was granted by the patent office on 1971-02-02 for jogging apparatus.
This patent grant is currently assigned to The Challenge Machinery Company. Invention is credited to Dan P. Westra.
United States Patent |
3,559,984 |
Westra |
February 2, 1971 |
JOGGING APPARATUS
Abstract
An apparatus for vibrating stacks of paper stock or the like
into aligned relationship with one another including a paper
supporting table flexibly suspended above a suitable framework. The
table has a shaft rotatably affixed thereto and the shaft is
provided with adjustable offcenter weights at its extremity.
Rotation of the shaft imparts vibration to the table, the degree of
such vibration depending upon the adjustment of the weights. The
apparatus is constructed such that the table may be tilted about
the axis of the shaft and, thus, the drive motor may be positioned
on the support framework without necessitating readjustment of the
driving mechanism each time the table angle is readjusted.
Inventors: |
Westra; Dan P. (Grand Haven,
MI) |
Assignee: |
The Challenge Machinery Company
(Grand Haven, MI)
|
Family
ID: |
24961589 |
Appl.
No.: |
04/736,856 |
Filed: |
June 13, 1968 |
Current U.S.
Class: |
271/210 |
Current CPC
Class: |
B65H
31/40 (20130101); B65H 2515/50 (20130101); B65H
2511/20 (20130101); B65H 2515/50 (20130101); B65H
2220/04 (20130101); B65H 2220/02 (20130101) |
Current International
Class: |
B65H
31/34 (20060101); B65H 31/40 (20060101); B65h
031/34 () |
Field of
Search: |
;271/89 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Aegerter; Richard E.
Claims
I claim:
1. In a jogging apparatus having a support structure; a drive motor
mounted in nonflexible fashion upon said support structure; a
receptacle within which the stock to be jogged into registry is
positioned supported flexibly upon said structure in pivotable
fashion with respect thereto; rotatable means including offcenter
weight means affixed to said receptacle for causing said receptacle
to vibrate; and, drive means connected to said motor for driving
said rotatable means, said drive means having an axis of rotation,
the improvement comprising means for pivoting said receptacle with
respect to said structure about an axis coinciding with the axis of
said drive means.
2. The apparatus as set forth in claim 1 wherein said drive means
comprises a shaft rotatably journaled on said receptacle.
3. The apparatus as set forth in claim 2 wherein said rotatable
means are affixed to said shaft.
4. In a jogging apparatus having a support structure; a receptacle
within which the stock to be jogged into registry is positioned
supported flexibly upon said structure in pivotable fashion with
respect thereto; rotatable means including offcenter weight means
affixed to said receptacle for causing said receptacle to vibrate;
and, drive means having an axis of rotation for driving said
rotatable said drive means including a shaft rotatably journaled on
said receptacle, said rotatable means being affixed to said shaft,
the improvement comprising means for pivoting said receptacle with
respect to said structure about an axis coinciding with the axis of
said drive means, said receptacle being pivotably affixed to said
support structure by hollow tubular connection means having an
interior measurement greater than the exterior measurement of said
shaft, said shaft passing through said connecting means.
5. The apparatus as set forth in claim 4 wherein said support
structure includes a pair of upstanding side members, said tubular
connection means protruding outwardly in diverging fashion
therefrom, and which further comprises: pivot members pivotably
affixed to each of said connection means; and, means for
selectively adjusting the angular position of each of said pivot
members with respect to said side members.
6. The apparatus as set forth in claim 5 wherein said adjustment
means comprises: an arm extending from each of said pivot members:
a slot in each of said sidewalls; and means for securing
selectively said arms at any predetermined position along a said
slot.
7. The apparatus as set forth in claim 6 wherein said slots are
curved, the radius of curvature thereof equaling the distance
between the axis of said tubular members and that point on said
arms at which they are secured within said slots.
8. The apparatus as set forth in claim 5 which further comprises a
receptacle support affixed to each of said pivot members by
flexible coupling means, said receptacle being secured to said
receptacle supports.
9. The apparatus as set forth in claim 8 wherein each of said pivot
members has a pair of diverging support arms extending therefrom,
said receptacle supports being affixed to said pivot members by
said flexible coupling members at the extremities of each of said
support arms.
10. The apparatus as set forth in claim 8 wherein said coupling
means comprises a flexible resilient body section having a shaft
extending outwardly from each side thereof, each of said shafts
being independently supported within said body section and, thus,
resiliently moveable with respect to the other of said shafts.
11. The apparatus as set forth in claim 8 wherein said shaft is
rotatably journaled to said receptacle supports.
12. The apparatus as set forth in claim 11 wherein one of said
rotatable means is mounted at each of the extremities of said shaft
outside of said receptacle supports.
13. The apparatus as set forth in claim 12 wherein said rotatable
means are adjustable.
14. In a jogging apparatus having a table supported in flexible
fashion on a support upon which the stock to be jogged into
alignment is positioned; a drive motor mounted in nonflexible
fashion upon said support; a shaft rotatably affixed to said table;
means rotatably interconnecting said motor and said shaft; and
weighted members driven from said shaft to create an unbalanced
vibration condition on said table as said shaft is rotated, the
improvement comprising means for adjusting the angular position of
said table with respect to the horizontal about an axis coinciding
with the axis of said shaft.
15. In a jogging apparatus having a support structure; a receptacle
within which the stock to be jogged into registry is positioned
supported flexibly upon said structure in pivotable fashion with
respect thereto; rotatable means including offcenter weight means
affixed to said receptacle for causing said receptacle to vibrate;
and, drive means having an axis of rotation for driving said
rotatable means, the improvements comprising means for pivoting
said receptacle with respect to said structure about an axis
coinciding with the axis of said drive means, said rotatable means
being affixed to a shaft rotatably affixed on said receptacle, said
rotatable means including a first member affixed to said shaft,
said first member being off balance with respect to the axis of
said shaft; a second member mounted about said shaft and rotatable
with respect thereto, said second member also being off balance
with respect to said shaft; at least one lug member protruding from
one of said members; a series of lug-engaging means on the other of
said members adapted to engage said lug; and means for shifting
said second member axially along said shaft to effect disengagement
of said lug and the lug-engaging means then engaging it whereby
said second member may be rotated to a different rotational
position with respect to said first member and said lug brought
into engagement with another of said lug-engaging means.
16. The apparatus as set forth in claim 15 which further comprises
resilient means biasing said second member and said first member
together so as to bring said lug and lug-engaging means into
engagement.
17. The apparatus as set forth in claim 16 wherein said first and
second members have facing surfaces urged into abutment by said
biasing means, said lug member projecting from one of said surfaces
toward the other thereof and wherein said lug-engaging means
comprises a series of apertures in the other of said surfaces
adapted to receive said lug member.
18. The apparatus as set forth in claim 17 which further comprises
knob means integrally formed with said second member.
19. In a jogging apparatus having a support structure; a receptacle
within which the stock to be jogged into registry is positioned
supported flexibly upon said structure in pivotable fashion with
respect thereto; rotatable means including offcenter weight means
affixed to said receptacle for causing said receptacle to vibrate;
and, drive means having an axis of rotation for driving said
rotatable means, said drive means including a shaft rotatably
journaled on said receptacle, the improvement comprising means for
pivoting said receptacle with respect to said structure about an
axis coinciding with the axis of said drive means; a motor fixedly
mounted on said support structure; a pulley mounted on said shaft;
and flexible endless drive means interconnecting said pulley and
said motor.
Description
This invention relates to jogging apparatus and, more particularly,
to such apparatus particularly adapted for vibrating stacks of
paper stock or the like into aligned relationship so that it may be
further processed.
In the paper-processing field it is often necessary to align a
plurality of sheets, cards or the like into registry with one
another in order that they may be further processed or packaged.
Paper received from a cutter, press or the like, for example, must
often be so aligned prior to further printing or cutting
operations. This alignment or registering is effected generally by
positioning the stack of material in a vibrating table or tray with
one or more of the edges thereof abutting an alignment guide. The
table is then vibrated causing the individual sheets to come into
alignment with the guide and, thus, into overlying registry with
one another.
Devices for accomplishing the aligning function noted above are
referred to in the art as "joggers." The prior art is replete with
varying types of these apparatus. These prior art devices vary
widely in both sophistication and complexity.
It has been proposed, for a example, to impart vibration to the
paper supporting table or tray by means of a shaft rotatably
affixed thereto having offcenter weights thereon. Means are
provided for imparting rotation to the shaft and the offcenter
characteristics of the weights causes it to vibrate and, thus,
vibrate the table. The table or tray in such a situation, of
course, is flexibly positioned above the framework of the apparatus
by means of springs or the like. Joggers of this type usually
include, additionally, some means for adjusting the offcenter
weights such that the degree of vibration imparted to the table or
tray may be altered depending upon the types of material being
processed. Devices of this type are shown, for example, in U.S.
Pat. No. 2,573,164 to Scheinker and No. 3,062,539 to Obenshain.
Devices of the general type shown in these two patents suffer from
a number of disadvantages. It is usually desirable, for a example,
to make the paper supporting tray or table adjustable with respect
to the horizontal so that differing weights or paper stock or the
like may be jogged at differing angles. The necessity of providing
a drive mechanism for the shaft, heretofore, required that the
drive motor be tilted along with the table as a means of obviating
the necessity of readjusting the drive mechanism each time the
table tilt was readjusted. Difficulty has been experienced,
additionally, in adjusting the degree of vibration of the table
since the weights have been placed in relatively inaccessible
positions within the joggers because of design considerations.
Devices of this type, obviously, are somewhat awkward to utilize in
the working environment.
Apparatus of the type described must include additionally, as
noted, some type of structure for flexibly suspending the paper
supporting table or tray with respect to the framework of the
apparatus. Prior art proposals in this regard include primarily
varying configurations of leaf springs, coil springs or the like.
Suspension devices of this type have proved satisfactory with many
types of joggers. They have contributed, however, to the problems
of weight excessability and driving adjustments noted above in the
weighted shaft type of jogger.
It is an object of this invention, therefore, to provide a jogging
apparatus which is no not subject to the disadvantages outlined
above.
It is an object of this invention, more particularly, to provide a
jogging apparatus employing an offcenter weighted shaft to impart
vibration to the table or tray wherein the offcenter weights and,
thus, the degree of vibration of the apparatus, can be readily
adjusted by the operator.
It is yet a further object of this invention to provide an
apparatus of the type described having a paper supporting table or
tray which can be tilted at any desired angle with respect to the
horizontal without necessitating readjustment of the drive
mechanism and, yet, wherein the drive motor is mounted on the
nontilting portion of the apparatus. The apparatus which is the
subject of this invention, thus, can be adjusted with relative
ease.
It is yet another object of this invention to provide an apparatus
of the type described embodying a flexible suspension structure
between the paper-supporting table or tray and the frame of the
apparatus which isolates effectively the base of the structure from
tray vibration and which, additionally, structurally and
functionally interrelates to other components of the apparatus in
such a manner as to provide a highly efficient machine.
It is still another object of this invention to provide a weight
adjustment mechanism on the apparatus which is easily accessible
from the exterior of the machine; which may be positively adjusted
to obtain the desired degree of vibration and, yet, which may be
utilized effectively by persons having minimal familiarity with the
apparatus.
It is also an object of this invention to provide an apparatus of
the type described embodying a minimum number of components and,
thus, an apparatus which may be fabricated and distributed at
reasonable cost. In this regard, additionally, it is an object of
this invention to provide such an apparatus wherein the simplicity
of the components maximizes their life expectancy while minimizing
the number of necessary repairs, replacements and the like.
These and other objects of this invention will be readily
understood by those skilled in the art with reference to the
following specification and accompanying FIGS. in which:
FIG. 1 is a front perspective view of the apparatus;
FIG. 2 is a fragmentary, side elevational view of the
apparatus;
FIG. 3 is a plan view of the frame and table support
assemblies;
FIG. 4 is a cross-sectional view taken along the plane IV-IV of
FIG. 3;
FIG. 5 is a side elevational view of the structure illustrated in
FIGS. 3 and 4;
FIG. 6 is an enlarged, fragmentary, front elevational view,
partially in cross section, of the table support, adjustment and
vibration assemblies;
FIG. 7 is an enlarged, fragmentary, plan view, partially in cross
section, of the table support, adjustment and vibrating
assemblies;
FIG. 8 is an exploded view of the table adjustment and support
assemblies;
FIG. 9 is a front elevational view of one of the flexible
mounts;
FIG. 10 is a side elevational view, partially in cross section, of
one of the adjustable vibration assemblies;
FIG. 11 is a front elevational view of the weight housing;
FIG. 12 is a cross-sectional view taken along plane XII-XII of FIG.
10; and
FIG. 13 is a cross-sectional view taken along plane XIII-XIII of
FIG. 10.
Briefly, this invention comprises a jogging apparatus having a
table upon which the stock to be jogged into alignment is
positioned. A shaft having a series of offcenter weights is
rotatably affixed to the table and means are provided for rotating
the shaft. The table, of course, is supported in flexible fashion
on a suitable support structure.
In accordance with one of the features of this invention, the angle
of the table relative to the support structure is adjusted about an
axis coinciding with the axis of the drive means for the offcenter
weights, thus permitting adjustment of the table without
readjustment of the driving mechanism for the shaft. According to
another feature of this invention, the weight structure is adjusted
by sliding one of the weights axially with respect to a mating
weight to disengage a luglike locking arrangement and thereafter
rotating the weight to the desired position and allowing it to
reengage its mating weight.
Referring now to the FIGS. a preferred embodiment of this invention
will be described in detail. FIGS. 1 and 2 illustrate the novel
apparatus which includes a support structure 10 having a base 11
which, conveniently, can be mounted upon casters 12 for easy
movement throughout the working facility. Base 11 has an upright
pose 13 positioned thereon. Post 13 is retained by sleeve 14 and
may be telescoped in and out thereof to raise and lower the height
of the apparatus by adjustment assembly 15.
Mounted at the upper extremity of post 13 is the frame assembly 20
which includes a U-shaped member 21 having a base 22 and upstanding
side 23. The frame assembly 20 is affixed to post 13 by a post
mount 24 in any suitable fashion.
Referring now additionally to FIGS. 3 through 7, the frame assembly
20 is provided with a suitable motor mount 25 on the upper side of
the base 22 thereof. Apertures 26 are provided at the upper
extremities of each of the sides 23. Each of the sides 23 is
provided, additionally, with a curved slot 27 having a radius
constant with respect to the aperture 26 on its respective side of
the apparatus.
The table structure 70 is supported at each side of the apparatus
by structures which are similar with the exception of their
"left-hand" and "right-hand" characteristics. For purposes of
clarity in the ensuing discussion, the structures on the left hand
side of the machine (as viewed in FIGS. 1, 3 and 4) are denoted by
the letter a and those on the right hand of the machine by the
letter b. Similar reference numerals, of course, are utilized for
similar components.
Referring now additionally to FIG. 8, each side of the apparatus is
provided with a pivot arm assembly 30. Pivot arm 30a is positioned
at the left side of the apparatus (as viewed in FIGS. 3 and 4)
while pivot arm assembly 30b is positioned at the right side of the
apparatus. Each of the pivot arm assemblies has a central portion
31 having an aperture 32 therein. From central portion 31 extend a
pair of diverging arms 33, each of the arms having an aperture 34
in the extremity thereof. Also extending from central portion 31 is
a depending adjustment leg 35 having an aperture 36 at its lower
extremity.
The pivot arm assemblies 30a and 30b are affixed to upstanding
sides 23 of U-shaped member 21 by means of cylindrical arm mounts
37. Mounts 37, as shown best in FIGS. 6 and 7, are open at their
interiors and are positioned in apertures 26 in side plates 23 and
apertures 32 in pivot arms 30. The pivot arms 30 must be free to
rotate with respect to side plates 23 of frame member 21 as will
become apparent hereinafter and it may be necessary to secure the
members 21, 37 and 30 together. Such securing, of course, can be
readily accomplished by those skilled in the art.
The table angle adjustment assembly, indicated generally by the
reference numeral 40, includes the depending legs 35 of each of the
pivot arms 30 and the curved slots 27 in each of the upstanding
sideplates 23 of U-shaped member 21. The adjustment assembly,
conveniently, includes a shaft (not shown) passing between the
upright sides 23 having a knobbed extremity 42 and a threaded
opposite extremity upon which a suitable nut 41 is adapted to be
affixed. The shaft passes through the apertures 36 in the pivot
arms 30, through the slots 27 in upstanding sides 23 and into the
nut 41. The curved slots 27 lie along the arc of a circle having
the center of the cylinders 37 as its center and the distance
between the midpoints of apertures 32 and 36 as its radius. By
loosening knob 40, thus, the pivot arm assemblies 30 can be rotated
to any desired position along slot 27 to tilt the paper-supporting
table as will be discussed in detail hereinafter.
The vibration isolation assembly, indicated generally by the
reference numeral 50, includes a series of four flexible mounts 51.
Two of these mounts are provided at each side of the machine as
will become clear from the following description. The mounts 51 are
molded from any suitable flexible substance such as rubber or the
like. During the molding process, shafts 52 and 53 (see FIG. 9)
each having retainer caps 54 are integrally molded into the
flexible mount member. The shafts 52 and 53, thus, are not
interconnected but, rather, separated by the flexible rubber or
rubberlike molded material forming the mount. It is possible, thus,
to contort one of the shafts, for example 53, without causing a
like contortion in shaft 52.
The table supports, indicated generally by the reference numerals
55a and 55b, each include a planar upper surface 56 having tapped
apertures 57 suitably spaced thereon. The supports include,
additionally, a pair of depending legs 58 each having slots 59
therein. That portion of the supports beneath a planar surface 56
adjacent the extremities of the support includes a mount shelf 60
against which the flexible mounts 51 are adapted to rest after
assembly of the apparatus. The table support structures 55 also
include two suitably tapped apertures in the bearing mounts 61, the
purpose of which will become clear hereinafter.
The pivot arm 30-- flexible mount 51-- table support 55 mode of
assembly for the left-hand side of the machine is illustrated best
in FIG. 8. The right hand assembly, as noted previously, is
identical with the exception of the mirror-imaged parts. The shafts
52 of two of the mounts 51 are received by apertures 34 in pivot
arm 30. The shafts 53 pass through slots 59 in table support 55.
The resultant configuration, as illustrated best in FIGS. 3 through
5, provides the planar surfaces 56 for reception of the paper
support table or receptacle which is thus affixed to the base of
the apparatus in angularly adjustable fashion. The table is
flexible mounted with respect to the remainder of the apparatus,
however, due to the presence of the flexible mounts 51 at the four
extremities thereof.
The table or receptacle assembly, indicated generally by the
reference numeral 70, comprises a flat rectangular member secured
to the planar surfaces 56 of table supports 55 by means of suitable
screws (not shown) threading into the apertures 57 on supports 55a
and 55b. The rectangular plate 71 is positioned diagonally with
respect to the table supports 55 in the manner indicated in FIGS. 1
and 2. The fastening of the table 70 to the supports fixes the
spatial relationship of depending legs 58 and thus, will retain the
pivot arm 30-- mount 51-- table support 55 in assembled
configuration. If necessary, however, shafts 52 and 53 may be
provided with additional locking means such as snap rings to retain
the assembled components together.
A pair of upstanding side guides 73 are affixed to the edges of
table 71 such that they converge at the lowermost extremity of the
paper-supporting table or receptacle when it is tilted downwardly
by adjustment assembly 40. The paper to be jogged into registry, of
course, is placed on the table 71 and, during the vibration
thereof, the edges come into alignment with the side guides 73.
The drive assembly, indicated generally by the reference numeral
80, comprises an elongated shaft 81 rotatably secured to the lower
surface of table supports 55a and 55b by means of suitable bearing
caps 82. An electric motor 84 is suitably mounted upon the base 22
of the U-shaped member 21 and the shaft 81 rotated thereby through
a pulley 83 and conventional V-belt 85. As shown best in FIGS. 6
and 7, the shaft 81 passes through the central portion of
cylindrical mounts 37 at each extremity of the apparatus and into
the bearings 82 on the table supports 55. The motor is activated by
means of a switch 87 or, alternatively, a foot switch 86 suitably
connected thereto.
The various components of the apparatus are sized such that shaft
81 passes through the proximate center of cylindrical mounts 37
during assembly of the apparatus. Since the pivotable members 30a
and 30b rotate about centers coinciding with the shaft 81, angular
adjustment of the paper-supporting table by the movement of arms 35
does not affect the distance between the pulley on the motor 84 and
the pulley on the shaft 83. The table, thus, may be adjusted to any
desired angular position without necessitating the readjustment of
the drive assembly 80.
Referring now additionally to FIGS. 10 through 13, the adjustment
vibrating assemblies, indicated generally by the reference numerals
90a and 90b, each comprise a weight housing 91 suitably secured
near each extremity of shaft 81. The weight housings 91 have
circular recesses 92 therein and a series of apertures 93 are
drilled into the body section 94 of the weight housing at the base
of these recesses. The apertures 93, as shown best in FIGS. 11 and
13, are positioned on one side of the weight housing 91, the other
side thereof being left solid. The material removed from the weight
housing 91 during drilling or other forming of the apertures 93, of
course, causes the aperture to be weighted heavier at one side
thereof than at the other.
Weight housing 91 has, additionally, a tapped aperture 95 therein
into which is threaded a capscrew 96 having a head 97.
Diametrically opposite from aperture 95 is drilled and tapped a
setscrew aperture 98 into which a suitable setscrew 99 is affixed.
The setscrew 99 is provided merely as a means of counteracting
and/or amplifying the weight differential resulting from the
presence of capscrew 96. The necessity of providing this component,
of course, will depend upon the design criterion utilized in the
fabrication of the weight housing 91.
The adjustable weight assembly, indicated generally by the
reference numerals 100a and 100b, comprises a body section 101
having a knob 102 protruding therefrom. Body section 101 is sized
so as to fit rotatably into circular recess 92 in weight housing 91
and has a series of four apertures 103 drilled in one side thereof
as shown best in FIGS. 10 and 12. The forming of the apertures 103
renders the adjustable weight assembly 100 heavier on one side than
the other. The apertures 103 function, additionally, to receive the
head 97 of capscrew 96 as will become apparent.
Knob section 102 of adjustable weight assembly 100 has a central
cylindrical recess 104 bored or otherwise formed therein. After the
assembly 100 has been placed around the extremity of shaft 81 with
one of the apertures 103 engaging the head 97 of capscrew 96, a
compression spring 105 is placed over the extremity of the shaft so
as to lie within the cylindrical recess 104 in the manner shown in
FIG. 10. A thrust bearing 106 is then positioned over the extremity
of shaft 81 and a suitable screw 107 inserted through the thrust
bearing into the extremity of the shaft. Screw 107, of course,
functions to maintain spring 105 in compression and, thus, to
maintain the adjustable weight assembly 100 in abutment with the
weight housing 90 with one of the apertures 103 engaging the head
97 of the capscrew.
From an examination of FIGS. 10 through 13, it will be apparent
that by rotating adjustably weight assembly 100 with respect to
weight housing 91, the weight distribution surrounding each
extremity of shaft 81 may be altered. Maximum offcenter weight
distribution is achieved, of course, when the apertures 93 and 103
lie to the same side of shaft 81. Minimum offcenter weight
distribution is achieved when the apertures 103 are rotated to a
position on the side of shaft 81 opposite from the apertures
93.
The relative rotational positions of weight housings 91 and
adjustable weight assemblies 100 are changed by grasping the knob
section 102 and pulling it outwardly. This causes spring 105 to
compress and, thus, the capscrew head 97 to pass out of engagement
with the particular aperture 103 in which it has been positioned.
The knob 102 and, thus, the adjustable weight assembly 100 is then
rotated to the newly desired position and the knob 102 released.
Compression spring 105 causes the adjustable weight assembly 100 to
move back into abutment with the weight housing 91 with the
capscrew head 97 positioned within another of the apertures 103. A
dial or the like, conveniently, may be provided on the exterior of
the assemblies to indicate visually the relative positions of the
components 91 and 100.
When it is desired to utilize the apparatus which is the subject of
this invention, the paper supporting table is first moved to the
desired relative angular position with respect to the horizontal.
This is accomplished by loosening knob 42 and pivoting pivot
members 30 about mounting cylinders 37. When the desired point is
reached, the knob 42 is retightened to secure the table at the
desired position.
Subsequent to adjustment of the angular position of the table, the
adjustable vibrating assemblies 90a and 90b are adjusted to the
correct position by pulling the knobs 102 outwardly and rotating
them with respect to the shaft in the manner discussed previously.
With the weight assemblies 90 thus adjusted, the paper to be job
jogged into alignment or registry is positioned into the
paper-supporting table or receptacle assembly 70. The apparatus is
then activated by either flipping switch 87 or depressing foot
pedal 86.
Activation of the motor 84 causes shaft 81 to rotate. The rotation
of shaft 81, in turn, is transferred to the adjustable weight
assemblies 90 at each of its extremities. The offcenter weight
distribution characteristics of the assemblies 90 cause the shaft
81 to vibrate in a manner which will be readily appreciated by
those skilled in the art. This vibration, of course, is transferred
directly to the paper-supporting assembly 70 since the shaft is
rotatably mounted directly thereto by the bearing assemblies 82.
The vibration is damped from the frame 20 and support structure 10,
however, because of the presence of the flexible mounts 21 between
the table supports 55 and the pivot arms 30. Vibration of the table
causes the paper to align or come into registry against the
sideplates 73. When registry has been completed, the apparatus is
deactivated, readjusted if necessary, and utilized to align another
batch of stock.
The instant apparatus may be utilized to receive and align stock
issuing singly from a press or the like as well as to align
preformed batches. In such a situation, of course, the table
assembly 70 is positioned with respect to the particular output
device such that the individual sheet pass directly thereonto. The
aligned stacks of sheets may be removed from the apparatus
intermittently as required by the output characteristics of the
particular processing device with which it is operating in
conjunction.
While a preferred embodiment of this invention has been described
in detail, it will be readily apparent to those skilled in the art
that other embodiments may be conceived and fabricated without
departing from the spirit of this specification and the
accompanying drawings. Such other embodiments are to be deemed as
included within the scope of the following claims unless these
claims, by their language, expressly state others otherwise.
* * * * *