U.S. patent number 3,650,487 [Application Number 05/017,069] was granted by the patent office on 1972-03-21 for two-roll tissue dispenser.
This patent grant is currently assigned to Steiner American Corporation. Invention is credited to Erwin B. Bahnsen.
United States Patent |
3,650,487 |
Bahnsen |
March 21, 1972 |
TWO-ROLL TISSUE DISPENSER
Abstract
A two-roll tissue dispenser comprising a housing having a
dispensing opening and a door providing access into the housing,
two support arms pivotally mounted in the housing and each carrying
a post for tissue rolls disposed normal to the support wall for the
housing each of the support arms being pivoted at a common axis and
sequentially pivotal only in one direction from a storage position
to a dispensing position and then to an exhaust position and then
back to the storage position, and latch mechanism automatically
controlling the sequential pivoting of the support arms through the
four positions named automatically to deliver a tissue roll from
the storage position to the dispensing position upon the exhaustion
of the tissue roll in the dispensing position; an improved and
simplified lock mechanism for such a dispenser has also been
provided.
Inventors: |
Bahnsen; Erwin B. (Oakbrook,
IL) |
Assignee: |
Steiner American Corporation
(Salt Lake City, UT)
|
Family
ID: |
21780546 |
Appl.
No.: |
05/017,069 |
Filed: |
March 6, 1970 |
Current U.S.
Class: |
242/560.3;
242/597.8; 312/34.22 |
Current CPC
Class: |
A47K
10/40 (20130101); A47K 10/38 (20130101); A47K
2010/3253 (20130101) |
Current International
Class: |
A47K
10/24 (20060101); A47K 10/38 (20060101); A47K
10/40 (20060101); A47K 10/32 (20060101); B65h
019/00 (); B65h 019/04 () |
Field of
Search: |
;242/55.2-55.54
;312/38-40 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Christian; Leonard D.
Claims
What is claimed is:
1. A tissue dispenser comprising a housing having a tissue
dispensing opening therein, two support arms pivotally mounted in
said housing and each carrying thereon means for holding a roll of
tissue, each of said support arms being sequentially pivotal from a
storage position holding the tissue roll away from said dispensing
opening to a dispensing position holding the tissue roll adjacent
to said dispensing opening and then to an exhaust position with no
tissue thereon and then back to the storage position for receiving
thereon a fresh tissue roll, and latch mechanism mounted in said
housing and shiftable between a first condition and a second
condition, said latch mechanism in the first condition thereof
holding a support arm in the storage position thereof and in the
second condition thereof accommodating movement of a support arm
from the storage position thereof to the dispensing position
thereof, the presence of one of said support arms in the dispensing
position thereof holding said latch mechanism in the first
condition thereof to retain the other of said support arms in the
storage position thereof, movement of said one support arm from the
dispensing position thereof to the exhaust position thereof
permitting movement of the latching mechanism to the second
condition thereof thereby to accommodate movement of said other
support arm from the storage position thereof to the dispensing
position thereof, movement of said other support arm from the
storage position thereof to the dispensing position thereof
returning said latch mechanism from the second condition thereof to
the first condition thereof thereby to hold said one support arm in
the storage position thereof upon pivotal movement thereof from the
exhaust position thereof to the storage position thereof for
receiving a fresh tissue roll thereon.
2. The tissue dispenser set forth in claim 1 wherein said housing
includes a support engaging the surface of the tissue roll in the
dispensing position to maintain that tissue roll adjacent to the
dispensing opening.
3. The tissue dispenser set forth in claim 1, and further
comprising a roller mounted on said housing adjacent to said
dispensing opening for contacting the surface of a tissue roll in
the dispensing position to accommodate withdrawal of tissue through
said dispensing opening.
4. The tissue dispenser set forth in claim 1, wherein said housing
has a plurality of mounting holes therein for mounting said housing
on a support wall so that the axes of the tissue rolls are disposed
normal to the support wall.
5. The tissue dispenser set forth in claim 1 wherein said housing
has a plurality of mounting holes therein arranged symmetrically
about a vertical mounting line whereby two of the tissue dispensers
can be mounted on the opposite sides of a support wall using common
fasteners disposed through aligned mounting holes in the housings
of said tissue dispensers.
6. The tissue dispenser set forth in claim 1, wherein the carrying
means on each support arm for holding a roll of tissue is a post
rotatably mounted on the support arm.
7. The tissue dispenser set forth in claim 1, wherein the carrying
means on each support arm for holding a roll of tissue is a post
fixedly mounted on the support arm.
8. The tissue dispenser set forth in claim 1, wherein the carrying
means on each support arm for holding a roll of tissue includes an
anti-bootleg device for cooperation with a complementarily
constructed tissue roll.
9. The tissue dispenser set forth in claim 1, wherein the carrying
means on each support arm for holding a roll of tissue is a post
mounted on the support arm and having a portion immediately
adjacent to the support arm of larger diameter for cooperation with
a countersunk portion in the adjacent end of a tissue roll.
10. A tissue dispenser comprising a housing having a tissue
dispensing opening therein, two support arms pivotally mounted in
said housing on a common pivot axis and each carrying thereon means
for holding a roll of tissue, each of said support arms being
pivotal about said pivot axis in the same direction from a storage
position to a dispensing position and then to an exhaust position
and then back to the storage position, each support arm in the
storage position being in position for receiving thereon a fresh
tissue roll and for holding the tissue roll away from said
dispensing opening and in the dispensing position holding the
tissue roll adjacent to said dispensing opening and in the exhaust
position having no tissue thereon, and latch mechanism mounted in
said housing and shiftable between a first condition and a second
condition, said latch mechanism in the first condition thereof
holding a support arm in the storage position thereof and in the
second condition thereof accommodating movement of a support arm
from the storage position thereof to the dispensing position
thereof, the presence of one of said support arms in the dispensing
position thereof holding said latch mechanism in the first
condition thereto to retain the other of said support arms in the
storage position thereof, movement of said one support arm from the
dispensing position thereof to the exhaust position thereof
permitting movement of the latching mechanism to the second
condition thereof thereby to accommodate movement of said other
support arm from the storage position thereof to the dispensing
position thereof, movement of said other support arm from the
storage position thereof to the dispensing position thereof
returning said latch mechanism from the second condition thereof to
the first condition thereof thereby to hold said one support arm in
the storage position thereof upon pivotal movement thereof from the
exhaust position thereof to the storage position thereof for
receiving a fresh tissue roll thereon.
11. A tissue dispenser comprising a housing having a tissue
dispensing opening therein, two support arms pivotally mounted in
said housing on a common pivot axis and each carrying thereon means
for holding a roll of tissue, each of said support arms being
pivotal about said pivot axis in the same direction from a storage
position to a dispensing position and then to an exhaust position
and then back to the storage position, each support arm in the
storage position being in position for receiving thereon a fresh
tissue roll and for holding the tissue roll away from said
dispensing opening and in the dispensing position holding the
tissue roll adjacent to said dispensing opening and in the exhaust
position having no tissue thereon, a latching pawl shiftably
mounted in said housing adjacent to said pivot axis and shiftable
between a first position and a second position, said latching pawl
having thereon a holding surface and a first abutment surface and a
second abutment surface and a trailing end, each of said support
arms having a pawl engaging pin thereon sequentially engageable
with the several surfaces on said latching pawl, said latching pawl
in the first position thereof having the holding surface thereon in
position to engage the pin on a support arm for holding that
support arm in the storage position thereof and in the second
position thereof accommodating movement of a support arm from the
storage position thereof to the dispensing position thereof, the
presence of one of said support arms in the dispensing position
thereof causing the pin thereon to engage said second abutment
surface to hold said latching pawl in the first position thereof
and to place said holding surface in a position to engage the pin
on the other of said support arms to retain the same in the storage
position thereof, movement of said one support arm from the
dispensing position thereof to the exhaust position thereof moving
the pin thereon from said second abutment surface past said
trailing end thereby to permit the pin on the other of said support
arms to shift said latching pawl to the second position thereof and
thus to pass that pin along said first abutment surface onto said
second abutment surface thus to return said latching pawl to the
first position thereof and to place said other support arm in the
dispensing position thereof, movement of said latching pawl to the
first position thereof returning said holding surface to a position
so as to engage the pin on said one support arm in the storage
position thereof upon continued pivotal movement thereof from the
exhaust position thereof to the storage position thereof for
receiving a fresh tissue roll thereon.
12. The tissue dispenser set forth in claim 11, wherein said
latching pawl is pivotally mounted in said housing.
13. The tissue dispenser set forth in claim 11, wherein said first
abutment surface is an arc of a circle with the center at said
pivot axis when said latching pawl is in the second position
thereof, and said second abutment surface is an arc of a circle
with the center at said pivot axis when said latching pawl is in
the first position thereof.
14. The tissue dispenser set forth in claim 11, and further
comprising a first stop mounted in said housing to define the first
position for said latching pawl, and a second stop mounted in said
housing for defining the second position for said latching
pawl.
15. A tissue dispenser comprising a housing having a door pivotally
mounted thereon and having a tissue dispensing opening therein, two
support arms pivotally mounted in said housing and each carrying
thereon means for holding a roll of tissue, a support mounted on
said door adjacent to said dispensing opening for engaging the
surface of a tissue roll, each of said support arms being pivotal
from a storage position to a dispensing position and then to an
exhaust position and then back to the storage position, each
support arm in the storage position being in position for receiving
thereon a fresh tissue roll and for holding the tissue roll away
from said dispensing opening and in the dispensing position holding
the tissue roll against said support adjacent to said dispensing
opening and in the exhaust position having no tissue thereon, and
latch mechanism mounted in said housing and shiftable between a
first condition and a second condition, said latch mechanism in the
first condition thereof holding a support arm in the storage
position thereof and in the second condition thereof accommodating
movement of a support arm from the storage position thereof to the
dispensing position thereof, the presence of one of said support
arms in the dispensing position thereof holding said latch
mechanism in the first condition thereof to retain the other of
said support arms in the storage position thereof, movement of said
one support arm from the dispensing position thereof to the exhaust
position thereof permitting movement of the latching mechanism to
the second condition thereof thereby to accommodate movement of
said other support arm from the storage position thereof to the
dispensing position thereof, movement of said other support arm
from the storage position thereof to the dispensing position
thereof returning said latch mechanism from the second condition
thereof to the first condition thereof thereby to hold said one
support arm in the storage position thereof upon pivotal movement
thereof from the exhaust position thereof to the storage position
thereof for receiving a fresh tissue roll thereon.
16. The tissue dispenser set forth in claim 15, wherein said
support is in the form of a roller rotatably mounted on said
door.
17. The tissue dispenser set forth in claim 15, and further
comprising a lock mechanism mounted on said housing and engaging
said door to hold said door in the closed position thereof.
18. A tissue dispenser comprising a housing including a rear wall
and a top wall and a side wall and a tissue dispensing opening in
the lower portion thereof, tissue dispensing mechanism mounted in
said housing for dispensing tissue from a roll thereof through said
dispensing opening, a door including a front panel and a side panel
and cooperating with said housing to enclose said tissue dispensing
mechanism except for the dispensing opening in said housing, a
hinge hingedly mounting said door on said housing and
interconnecting one edge of said rear wall and the adjacent edge of
said side panel so that opening movement of the front panel of said
door to gain access to said dispensing mechanism has a component of
motion substantially parallel to said rear wall, a tubular lock
post mounted on said rear wall and having the open end thereof
disposed toward and spaced a short distance from said front panel
in the closed position thereof, a lock latch mounted on said door
and having a locking end engaged within said lock post and having a
manual actuator accessible from the exterior of said door, means
normally urging said locking end into locking engagement with said
lock post thereby to prevent opening movement of said door until
actuation of said manual actuator to remove said locking end from
said lock post, and lock mechanism mounted on said door and
engageable with said lock latch to hold said locking end in the
locking position thereof.
19. The combination comprising a core post having a cylindrical
outer surface, an annular flange disposed a predetermined distance
from one end of said cylindrical outer surface and extending
radially outwardly therefrom, and a roll of sheet material
including an open-ended tubular core and a web of sheet material
wound thereon, said core having an inner diameter greater than the
diameter of said cylindrical outer surface of said core post and
less than the outer diameter of said annular flange, said roll
having counterbores respectively in the opposite ends thereof
extending from the inner surface of said core outwardly to provide
annular grooves, each of said grooves having an axial depth
substantially equal to said predetermined distance and having a
diameter slightly greater than the outer diameter of said annular
flange, said roll being coaxially received over said core post with
said annular flange being received in the adjacent one of said
annular grooves to accommodate proper seating of said roll on said
core post, whereby said roll may be properly seated on said core
post by placing either end of said roll over said core post.
20. A combination tissue roll and tissue dispenser, said tissue
dispenser comprising a housing having a dispensing opening therein,
two support arms pivotally mounted in said housing and each
carrying thereon a core post for holding said tissue roll, each of
said core posts having a cylindrical outer surface and an annular
flange extending outwardly from the cylindrical outer surface a
predetermined distance from one end thereof, each of said support
arms being sequentially pivotal from a storage position holding the
tissue roll away from said dispensing opening to a dispensing
position holding the tissue roll adjacent to said dispensing
opening and then to an exhaust position with no tissue thereon and
then back to the storage position for receiving thereon a fresh
tissue roll, latch mechanism mounted in said housing and shiftable
between a first condition and a second condition, said latch
mechanism in the first condition thereof holding a support arm in
the storage position thereof and in the second condition thereof
accommodating movement of a support arm from the storage position
thereof to the dispensing position thereof, the presence of one of
said support arms in the dispensing position thereof holding said
latch mechanism in the first condition thereof to retain the other
of said support arms in the storage position thereof, said tissue
roll comprising an open-ended tubular core, and a web of tissue
wound on said core to form said tissue roll, said core having an
inner diameter greater than the diameter of said cylindrical outer
surface of said core post and less than said outer diameter of said
annular flange, said roll having counterbores respectively in the
opposite ends thereof extending from the inner surface of said core
outwardly to provide annular grooves, each of said grooves having
an axial depth substantially equal to the predetermined distance
and having a diameter slightly greater than said outer diameter of
said annular flange, whereby either end of said roll may be axially
received over said core post with said annular flange being
received in the adjacent one of said annular grooves to accommodate
proper seating of said roll on said core post carried by said
support arm, movement of said one support arm from the dispensing
position thereof to the exhaust position thereof permitting
movement of the latching mechanism to the second condition thereof
thereby to accommodate movement of said other support arm from the
storage position thereof to the dispensing position thereof,
movement of said other support arm from the storage position
thereof to the dispensing position thereof returning said latch
mechanism from the second condition thereof to the first condition
thereof thereby to hold said one support arm in the storage
position thereof upon pivotal movement thereof from the exhaust
position thereof to the storage position thereof for receiving a
fresh tissue roll thereon.
Description
This invention relates to a two-roll tissue dispenser, and
particularly to such a dispenser employing pivotally mounted
support arms sequentially pivotal from a storage position to a
dispensing position and then to an exhaust position and then back
to the storage position.
An important object of the invention is to provide a tissue
dispenser comprising a housing having a tissue dispensing opening
therein, two support arms pivotally mounted in the housing and each
carrying thereon means for holding a roll of tissue, each of the
support arms being sequentially pivotal from a storage position
holding the tissue roll away from the dispensing opening to a
dispensing position holding the tissue roll adjacent to the
dispensing opening and then to an exhaust position with no tissue
thereon and then back to the storage position for receiving thereon
a fresh tissue roll, and latch mechanism mounted in the housing and
shiftable between a first condition and a second condition, the
latch mechanism in the first condition thereof holding a support
arm in the storage position thereof and in the second condition
thereof accommodating movement of a support arm from the storage
position thereof to the dispensing position thereof, the presence
of one of the support arms in the dispensing position thereof
holding the latch mechanism in the first condition thereof to
retain the other of the support arms in the storage position
thereof, movement of the one support arm from the dispensing
position thereof to the exhaust position thereof permitting
movement of the latching mechanism to the second condition thereof
thereby to accommodate movement of the other support arm from the
storage position thereof to the dispensing position thereof,
movement of the other support arm from the storage position thereof
to the dispensing position thereof returning the latch mechanism
from the second condition thereof to the first condition thereof
thereby to hold the one support arm in the storage position thereof
upon pivotal movement thereof from the exhaust position thereof to
the storage position thereof for receiving a fresh tissue roll
thereon.
Another object of the invention is to provide a tissue dispenser of
the type set forth wherein the two support arms have a common pivot
axis and are pivotal in the same direction sequentially from a
storage position to a dispensing position and then to an exhaust
position and then back to the storage position.
Another object of the invention is to provide a tissue dispenser of
the type set forth wherein the latching mechanism is a latching
pawl shiftable between a first position and a second position, the
latching pawl having thereon a holding surface and a first abutment
surface and a second abutment surface and a trailing end, each of
the support arms having a pawl engaging pin thereon sequentially
engageable with the several surfaces on the latching pawl, whereby
to provide the desired sequence of movement of the support
arms.
Another object of the invention is to provide a tissue dispenser of
the type set forth wherein the housing has a door pivotally mounted
thereon, the door carrying a support which engages the surface of
the tissue roll in the dispensing position to define the dispensing
position therefor.
A further object of the invention is to provide in a tissue
dispenser of the type set forth an improved locking mechanism.
Further features of the invention pertain to the particular
arrangement of the parts of the tissue dispenser, whereby the
above-outlined and additional operating features thereof are
attained.
The invention, both as to its organization and method of operation,
together with further objects and advantages thereof, will best be
understood by reference to the following specification taken in
connection with the accompanying drawings, in which:
FIG. 1 is a perspective view of a tissue dispenser made in
accordance with and embodying the principles of the present
invention, the dispenser being shown mounted on a support wall and
being viewed from one side thereof;
FIG. 2 is a perspective view of the tissue dispenser illustrated in
FIG. 1 as viewed from the other side thereof;
FIG. 3 is an enlarged plan view of the tissue dispenser of FIGS. 1
and 2 with the door thereof in its open position;
FIG. 4 is an enlarged view in section through the tissue dispenser
of FIG. 3 along the line 4--4 thereof, the door also being
disclosed in dashed lines in the closed position thereof;
FIG. 5 is a still further enlarged fragmentary view in section
along the line 5--5 of FIG. 3;
FIG. 6 is a part-diagrammatic view of the latching pawl forming a
part of the tissue dispenser of the present invention, the pawl
being shown in the two principal operating positions thereof;
FIGS. 7 and 8 are enlarged fragmentary views, partly diagrammatic,
illustrating the manner in which the latching pawl of FIG. 6
controls the movement of tissue rolls from the storage positions to
the dispensing positions thereof;
FIGS. 9 to 16, inclusive, are diagrammatic views illustrating the
manner of dispensing tissue from the tissue dispenser of the
present invention and the manner of loading fresh tissue rolls
thereinto;
FIG. 17 is a fragmentary view in section similar to FIG. 4 and
illustrating a modification of the core post;
FIG. 18 is a fragmentary view in section similar to FIG. 4 and
illustrating an improved locking mechanism for the tissue dispenser
of the present invention;
FIG. 19 is a plan view of certain parts of the locking mechanism of
FIG. 18;
FIG. 20 is a further enlarged fragmentary view, partly in section,
showing further details of the locking mechanism of FIG. 18, the
parts being shown in the locked positions; and
FIG. 21 is a view similar to FIG. 20 and showing the parts in the
unlocked positions thereof.
Referring to FIGS. 1 to 6 of the drawings, there is illustrated a
tissue dispenser 100 of the two-roll type made in accordance with
and embodying the principles of the present invention, the tissue
dispenser 100 being shown mounted upon a vertical support wall 50.
As illustrated, the tissue dispenser 100 includes a metal housing
101 provided with a door 110 and having mounted therein a rear
support arm 130 carrying a first core post 135 for carrying a first
tissue roll 60, a front support arm 150 having a second core post
155 for carrying a second tissue roll 70, and a latching pawl 180
controlling the pivotal movement of the support arms 130 and 150
during the dispensing of tissue from the tissue rolls 60 and
70.
Referring specifically to FIGS. 1 to 3 of the drawings, the housing
101 includes a rear wall 102, the shape of which is best
illustrated in FIG. 3 of the drawings, the rear wall 102 carrying
three mounting holes for mounting the tissue dispenser 100 upon the
support wall 50, one of the mounting holes being occupied by the
mounting screw 177 while the other two mounting holes are occupied
by mounting screws 90. It will be seen that the mounting screws 177
and one of the mounting screws 90 are in horizontal alignment,
while the second mounting screw 90 is disposed well above the first
two mounting screws named and on a vertical line bisecting the
distance between the first two mounting screws named. This
symmetrical arrangement of the mounting holes in the rear wall 102
permits two of the tissue dispensers 100 to be mounted back-to-back
on opposite sides of a support wall, such as the support wall 50,
and using a common set of fasteners such as bolts and nuts to mount
the two tissue dispensers 100 on the support wall. Referring to
FIGS. 4 and 5, it will be appreciated that the mounting hole
receiving the screw 177 is in an embossment 104 in the rear wall
102 extending inwardly into the housing 101.
As illustrated, the housing 101 further includes a top wall 105
which is curved downwardly to the rear or left-hand side as viewed
in FIG. 3 and merges with a side wall 107. Preferably the top wall
105 has an inwardly offset flange at the free edge thereof and the
side wall 107 likewise has an offset flange 108 at the free edge
thereof (see FIG. 4) to accommodate cooperation with the door 110
as will be described more fully hereinafter. The inner edge of the
rear wall 102 slopes downwardly and to the left as viewed in FIG.
103 to provide the free edge 109 which defines one side of the
dispensing opening for the tissue dispenser 100.
The door 110 includes a front panel 111 which essentially has the
outline of the rear wall 102 and is provided with a top flange 112
and a side flange 113 that cooperate with the offset flanges on the
top wall 105 and the side wall 107, respectively, of the housing
101, and more specifically the side flange 113 cooperates with the
offset flange 108 as is best shown in FIG. 4, for example. The door
110 also has a rear panel 115 which is essentially rectangular in
shape and carries on the lower edge thereof an outwardly extending
bottom panel 116. The forwardly projecting end of the bottom panel
116 carries a curl 117 in which is disposed a shaft 118 that
supports a roller 120 disposed in an opening in the curl 117, the
roller 120 having a slightly greater diameter than that of the curl
117, whereby to provide a support against which may rest the
periphery of a tissue roll in the dispensing position thereof. The
edge of the front panel 111 that corresponds to the edge 109 of the
rear wall 102 is provided with a fold back flange 124 so as to
remove the possibility of any sharp edges at this point, the flange
124 presenting a lower edge 129 that is shaped essentially like the
lower edge 109 on the rear wall 102, the lower edges 109 and 129
defining therebetween a dispensing opening for the housing 101.
As illustrated, the door 110 is secured to the rear wall 102 by
means of a piano hinge 125, the piano hinge 125 including a first
hinge plate 126 suitably secured as by welding to the rear edge of
the rear wall 102 and a second hinge plate 126 suitably secured as
by welding to the rear edge of the rear panel 115, the hinge plates
126 and 127 being connected by the usual hinge pin 128. The hinge
125 accommodates movement of the door 110 between the fully closed
position illustrated in FIGS. 1 and 2 and by dashed lines in FIG. 4
and the fully open position illustrated in FIG. 3 and by solid
lines in FIG. 4. It will be appreciated that when the door 110 is
in the closed position thereof, all of the dispensing mechanism
within the tissue dispenser 110 is essentially concealed and
inaccessible from the exterior, the only part of the dispenser
accessible from the exterior being the tissue roll partially
exposed through the dispensing opening between the lower edges
109-129. On the other hand, when the door 110 is moved to the open
position thereof as illustrated in FIG. 3, the entire dispensing
mechanism within the tissue dispenser 100 is accessible and the
support arms 130 and 150 have room fully to rotate about the pivot
axis thereof, all as will be explained more fully hereinafter.
Referring now to FIGS. 3 to 5 of the drawings, it will be seen that
there has been provided the rear support arm 130 which is
essentially formed of sheet metal and has the general outline
illustrated in FIG. 3. One end of the support arms 130 has an
opening 131 therein, while the other end thereof is offset or
embossed as at 132 and has an opening 133 therethrough for mounting
the core post 135 thereon. Intermediate the ends of the support arm
130 and extending rearwardly toward the rear wall 102 is a pawl
engaging pin 134, the function of which will be described more
fully hereinafter.
The core post 135 is freely rotatable and includes a shaft 136
having the axis thereof disposed normal to the plane of the support
arm 130 and provided at one end with a head 137 that is secured to
the support arm 130 such as by spot welding, resistance welding,
projection welding, or the like. Disposed about the shaft 136 are
two disc bearings, more specifically an inner disc bearing 138 and
an outer disc bearing 139, the disc bearings being formed of nylon
or other good bearing material. Mounted on the disc bearings
138-139 is a cylindrical sleeve 140 that carries at the lower end
thereof as viewed in FIG. 4 an out-turned flange 141 provided on
the outer edge with an annular flange 142 that snugly fits over the
inner disc bearing 138. The upper end of the sleeve 140 carries an
out-turned flange 143 having an annular flange 144 thereon engaging
about the outer disc bearing 139. An end plate 145 is provided
overlying the outer disc bearing 139 and having an opening
therethrough receiving a stub 146 on the outer end of the shaft
136, the outer end of the stub 146 being peened over to provide a
head 147 that holds all of the parts in the assembled
condition.
There is mounted upon the core post 135 a tissue roll 60, the
tissue roll 60 including the usual tubular cardboard core 61 about
which are wound the tissue sheets 62. As illustrated, the tissue
roll 60 has had each of the ends thereof counterbored as at 63,
whereby to permit positioning thereof upon the core post 135. It
will be seen that the diameter of the annular flange 142 on the
core post 135 is of substantially greater diameter than the annular
flange 144 on the outer end of the core post 135, the outer
diameter of the annular flange 144 being slightly less than the
inner diameter of the core 61, whereby the tissue rolls 60 can slip
thereover. However, it will be appreciated that the outer diameter
of the annular flange 142 is greater than the inner diameter of the
core 61 of the tissue roll 60, whereby only specially prepared
tissue rolls 60 having a counterbore 63 therein of a diameter
slightly greater than the outer diameter of the flange 142 can be
accommodated on the core post 135. In other words, the annular
flange 142 and the counterbore 63 provide an anti-bootleg
arrangement which requires the usage of the specially constructed
tissue rolls 60 thereon as illustrated.
The tissue dispenser 100 also includes a front support arm 150
which is constructed essentially like the inner support arm 130,
and more specifically has an opening 151 in the inner end thereof
and carries a core post 155 on the outer end thereof. Also mounted
on the support arm 150 is a pawl engaging pin 154 (see FIG. 5
also), the purpose and operation of the pin 154 to be more fully
described hereinafter. The core post 155 is constructed like the
core post 135 and is freely rotatable and is more specifically of
the anti-bootleg type including an end plate 165 held in position
by a head 167. As illustrated, the core post 155 supports a tissue
roll 70 which is of the same construction and arrangement of the
tissue roll 60, the tissue roll 70 including a core 71, a supply of
paper 72 and being provided with a counterbore 73 in the opposite
ends thereof.
The support arms 130 and 150 are pivotally mounted upon the rear
wall 102 in the housing 101 for pivoting about a common pivot axis,
the mounting structure therefor being best illustrated in FIGS. 4
and 5. Mounted in the embossment 104 is a mounting pivot 170
including a head 171, a shank 172 and a reduced portion 173. The
head 171 preferably has on the upper surface thereof as viewed in
FIGS. 4 and 5 a plurality of welding projections (not shown),
whereby after insertion of the shank 172 into an opening 103 in the
embossment 104, the mounting pivot 170 can be securely fastened as
by projection welding to the rear wall 102. The support arms 130
and 150 are then assembled on the shank 172 by insertion thereof
through the aligned openings 131 and 151 therein, after which a
retaining washer 176 is placed over the reduced portion 173 and the
outer end of the reduced portion 173 peened over or riveted to
provide the riveted head 174. The heads 171 and 174 hold the
various parts named in the assembled position. It further is
pointed out that this mounting pivot 170 has an opening 175
therethrough which receives the mounting screw 177 described above,
the mounting screw 177 typically being provided with a slotted head
178 and a threaded shank 179.
Referring particularly to FIGS. 6 to 8 of the drawings, there is
illustrated the construction and mounting of the latching pawl 180
which controls the sequential pivotal movement of the support arms
130 and 150 about the common pivot axis thereof, that pivot axis
being designated by the numeral 190 in the several figures of the
drawings. As illustrated, the latching pawl 180 is crescent shaped
and is provided intermediate the ends thereof with a pivot rivet
181 that is secured to the rear wall 102 (see FIG. 5 also), the
pivot rivet 181 accommodating the movement of the latching pawl 180
between the solid line position and the dashed line position
illustrated in FIGS. 6 and 8. The concave surface of the latching
pawl 180 is of no particular form and is merely formed concave to
accommodate the mounting thereof adjacent to the pivot axis 190 of
the support arms 130-150. The convex surface of the latching pawl
180 on the other hand is shaped with great particularity, and more
specifically includes a holding cam surface 182, a first
part-circular cam surface 183, a transition cam surface 184, a
second part-circular cam surface 185 and a trailing end 186. The
first part-circular cam surface 183 extends through the arc
designated 195 and disposed between the dotted lines 191 and 192 in
FIG. 6 of the drawings; the cam surface 183 is the arc of a circle
having the pivot axis 190 as the center when the latching pawl 180
is in the solid line position in FIG. 6. The second part-circular
cam surface 185 extends through the arc designated 197 and disposed
between the dashed lines 193 and 194 in FIG. 6 of the drawings; the
cam surface 185 is the arc of a circle having the pivot axis 190 as
the center when the latching pawl 180 is in the dashed line
position in FIG. 6. The holding cam surface 182 is essentially
tangent to the first part-circular cam surface 183 and is relieved
inwardly with respect thereto, while the transition cam surface 194
simply interconnects the two part-circular cam surfaces 183 and
185. The solid line position of the latching pawl 180, i.e., its
most counterclockwise position, is established by an upper stop lug
187 on the rear wall 102, and preferably struck therefrom, while
the dashed line position of the latching pawl 180, i.e., its most
clockwise position, is established by a lower stop lug 188 on the
rear wall 102, and preferably struck therefrom.
The manner in which the latching pawl 180 cooperates with the pawl
engaging pins 134 and 154 and the stop lugs 187 and 188 to control
the rotation of the support arms 130 and 150 is best illustrated in
FIGS. 7 and 8 of the drawings. If a tissue roll, such as the tissue
roll 70 supported on the support arm 150, is in the dispensing
position with the periphery thereof against the roller 120 as
illustrated in FIG. 7, the pin 154 illustrated in solid lines is in
engagement with the cam surface 185 and holds the latching pawl 180
in the full clockwise position against the stop lug 188. This
places the tissue roll 70, and specifically the tissue 72
therefrom, at the dispensing opening in the tissue dispenser 100.
Since the cam surface 186 is a true arc of a circle about the pivot
axis 190, it will be impossible to pivot the latching pawl 180 in a
counterclockwise direction so long as the pin 154 is in engagement
with any portion of the cam surface 185, as is well understood,
because of the inability to move either the pivot 190 or the pin
154 radially along the line interconnecting the same. Accordingly,
the support arm 130 will be held with the pin 134 thereof against
the holding surface 182 on the latching pawl 180, even though the
weight of the tissue roll 60 supported thereby may far exceed the
weight of the substantially fully exhausted tissue roll 70
supported by the arm 150. Accordingly, the tissue roll 60 and the
associated support arm 130 will be held in the storage position
illustrated so long as there is any tissue 72 upon the tissue roll
70 in the dispensing position.
A second position of the arm 150 and the remainder of the tissue
roll 70 supported thereby is illustrated by the dashed line
position of the pin 154 in engagement with the trailing end 186 of
the cam surface on the latching pawl 180, this illustrating the
position of the parts just after the dispensing of the last tissue
72 from the core 71 of the tissue roll 70. In other words, so long
as there is any tissue 72 upon the core 71, the tissue roll 70 will
be supported by the roller 120, but upon the exhaustion of the
tissue 72 from the core 71, the core 71 will be able to pass across
the roller 120 and move from the position illustrated at the lower
left in FIG. 7 to that illustrated at the lower left in FIG. 8.
As soon as the pin 154 disengages the trailing end 186 of the
latching pawl 180, the weight of the tissue roll 60 acting through
the support arm 130 and the pin 134 will cause the latching pawl
180 to be pivoted in a counterclockwise direction from the solid
line position in FIG. 7 and the dashed line position in FIG. 8 to
the solid line position in FIG. 8, i.e., the latching pawl 180 will
be pivoted in a counterclockwise direction until it strikes the
stop lug 187. Pivoting of the latched pawl 180 permits the pin 134
to move from the holding cam surface 182 across the cam surface 183
and under the urging of gravity to continue across the transition
cam surface 184 and onto the second part-circular cam surface 185.
As soon as the pin 134 strikes the cam surface 185, the latching
pawl 180 is pivoted once more from the counterclockwise position
illustrated by solid lines in FIG. 8 to the clockwise position
illustrated by solid lines in FIG. 7 and the dashed line position
illustrated in FIG. 8. It will be appreciated that the tissue roll
60 is now in the dispensing position with the periphery thereof
supported upon the roller 120 and with the tissue 62 thereof
accessible through the dispensing opening in the housing 102. Again
because of the fact that the cam surface 185 is a true circular arc
about the pivot axis 190, the latching pawl 180 cannot be pivoted
from the dashed line position in FIG. 8 to the solid line position
in FIG. 8 until the pin 134 passes from the cam surface 185 and
across the trailing end 186, all as described above.
It will be noted that the support arm 150 with the bare core 71
thereon will be in the lower position within the housing 101 while
tissue is being dispensed from the tissue roll 60. A maintenance
man in his periodic check of the tissue dispenser 100 would open
the door 110 to the position illustrated in FIG. 3 and would
thereby discover that the tissue on the core 71 has been exhausted.
The maintenance man can readily remove the core 71 from the post
155 and thereafter pivot the arm 150 in a clockwise direction in
front of the rear panel 115 of the door 110 and back to the storage
position within the housing 101 and above and spaced a short
distance counterclockwise from the support arm 130. The pin 154 in
this position will strike the holding cam surface 182, thereby
properly to position the support arm 150 in the storage position
thereof, and the maintenance man can once more place a fresh tissue
roll 70 thereon. In other words, the relative position of the
support arms 130 and 150 in FIG. 3 has now been reversed by
rotating the pivot arm 150 approximately 260.degree. in a clockwise
direction and by rotating the support arm 130 approximately
100.degree. in a clockwise direction, all under the control of the
latching pawl 180.
A full sequence of operation of the tissue dispenser 100 is
illustrated in FIGS. 9 to 16 of the drawings and the operation
thereof will now be recapitulated with reference thereto. In FIG.
9, the support arm 130 is illustrated in the storage position
carrying thereon a full tissue roll 60, while the support arm 150
is shown in the dispensing position supporting a substantially full
tissue roll 70 with the roller 120 engaging the periphery thereof,
the tissue roll 70 extending partially through the dispensing
opening with the tissue sheets 72 accessible to a user. It will be
appreciated that the support arm 130 is held in the storage
position in FIG. 9 due to the action of the latching pawl 180 which
is held in the position thereof illustrated in FIG. 7 by the
presence of the pin 154 on the support arm 150. As the tissue
sheets 72 are used from the tissue roll 70, the diameter of the
tissue roll 70 decreases, whereby the support arm 150 pivots in a
clockwise direction since the surface of the tissue roll 70
continues to rest upon the roller 120; as a consequence, the
support arm 150 is pivoted from the position illustrated in FIG. 9
in a clockwise direction through the position illustrated in FIG.
10 and then to the position illustrated in FIG. 11, the last tissue
sheets 72 having been dispensed from the tissue roll 70 as the
parts arrive in the position of FIG. 11.
With all of the tissue exhausted and removed from the tissue roll
70 on the support arm 150, the support arm 150 carrying only the
core 71 can be moved to the position illustrated in FIG. 12 which
movement disengages the pin 154 from the latching pawl 180 and thus
permits pivoting of the latching pawl 180 to its full
counterclockwise position against the stop lug 187, i.e., to the
solid line position of FIG. 8. This movement of the latching pawl
180 to its full counterclockwise position releases the pin 134 on
the support arm 130 to permit pivoting thereof to the position
illustrated in FIG. 12, and thus to move the tissue roll 60 from
the storage position illustrated by dashed lines in FIG. 12 in the
direction of the arrows to the dispensing position illustrated by
solid lines in FIG. 12; as a consequence of this movement of the
tissue roll 60 to the dispensing position, the surface of the
tissue roll 60 is in contact with and supported by the roller 120;
a portion of the tissue roll 60 extends through the dispensing
opening of the dispenser 100 and the tissue sheets 62 are now
accessible to a user.
The users continue to withdraw tissue sheets 62 from the tissue
roll 60 which causes the support arm 130 progressively to rotate
about the pivot axis 190 in a clockwise direction from the position
illustrated in FIG. 12 to that illustrated in FIG. 13. At this
juncture a maintenance man will inspect the tissue dispenser 100
and upon discovering that the tissue roll 70 is exhausted, will
remove the core 71 from the support arm 150 and rotate the support
arm 150 carrying the now empty core post 155 in a clockwise
direction as illustrated in FIG. 14 to the storage position
illustrated in FIG. 15. Since the pin 134 on the support arm 130 is
in engagement with the cam surface 185 on the latching pawl 180,
the latching pawl 180 will be in the clockwise position illustrated
by solid lines in FIG. 7 so as to position the holding cam surface
182 to engage the pin 154 on the support arm 150 to hold the
support arm 150 in the storage position. The maintenance man then
supplies a fresh tissue roll 70 and places it upon the core post
155, after which he closes the door 110.
When the tissues 62 are exhausted from the core 61, the support arm
130 will move to a position clockwise with respect to the roller
120 which will free the latching pawl 180 so that it will move
under the urging of the weight of the tissue roll 70 to the
counterclockwise position illustrated by solid lines in FIG. 8 and
thus permit the support arm 150 to move from the storage position
thereof to the dispensing position thereof, and thus to place the
fresh tissue roll 70 in the dispensing position such as that
illustrated in FIG. 9. The next time that the maintenance man
inspects the dispenser 100, he will discover that the tissue roll
60 is exhausted and therefore will remove the core 61 from the core
post 135 and pivot the support arm 130 in a clockwise direction
back to the position illustrated in FIG. 9 and place a fresh tissue
roll 60 on the post 135, whereby to return the parts essentially to
the position illustrated in FIG. 9. It will be appreciated that the
process can be indefinitely repeated.
From the above explanation it is clear that the fresh tissue roll
in the storage position is promptly moved to the dispensing
position upon the exhaustion of the tissue from the roll in the
dispensing position, movement of the fresh tissue roll from the
storage position to the dispensing position being under the urging
of gravity, and more specifically as a result of the weight of the
fresh tissue roll. The placement of the fresh tissue roll in the
dispensing position requires no effort or action on the part of the
user other than to strip the last usable tissue from the tissue
roll in the dispensing position. More particularly, it is not
necessary for the user to remove the cardboard core 61 or 71, as
the case may be, nor is it necessary for the user otherwise to
manipulate any part of or any supply item in the dispenser 100.
The dispenser 100 is easy to service since the support arms 130 and
150 are continuously rotatable in a clockwise direction about the
pivot axis 190 so that an empty core post 135 or 155 can be readily
placed in the storage position for the reception of a fresh tissue
roll thereon. In other words, the tissue roll in the dispensing
position need not be disturbed or even touched in order to place a
full and fresh tissue roll on the support arm 130 or 150 from which
the tissue has been exhausted. As a result, maintenance is
simplified and very economical.
Another desirable result is achieved by the construction of the
present invention in that the distance that the dispenser 100
extends into the space in which it is mounted is not a function of
or related to the diameter of the tissue roll since an increase in
the diameter of the tissue roll is accommodated in a direction
parallel to the rear wall 102 and therefore does not further
impinge into the space associated with the dispenser 100. In other
words, the diameter of the tissue roll can be increased without
increasing the protrusion of the dispenser 100 into the space and
away from the support wall 150. Normal tightly wound tissue rolls
have a diameter of 5 inches and contain 1500 one-ply sheets. The
dispenser 100 of the present invention can readily be designed to
permit tissue roll diameters of 63/4 inches containing 3,000
one-ply sheets without rendering the dispenser 100 too bulky or
unwieldy.
Referring to FIG. 17 of the drawings, there is illustrated a
modified tissue dispenser made in accordance with and embodying the
principles of the present invention, the modification of the
dispenser residing in the design and construction of the core post
235. As illustrated, the rear support arm 230 carries an offset or
embossed outer end 232 as described above with respect to the
support arm 130, the outer end 232 carrying a pair of spaced apart
slots 233. The core post 235 is in the form of a cylindrical sleeve
240 having an out-turned flange 241 at the lower end thereof
carrying an annular flange 242 on the outer edge thereof. Depending
from the annular flange 242 is a pair of lugs 243 that extend
through the slots 233 and are bent over to engage the underside of
the support arm outer end 232. The other end of the sleeve 240 is
provided with a cap 245 including a depending annular flange 246
which fits over and is suitably secured to the upper end of the
sleeve 240. It will be appreciated that by this construction the
core post 235 is fixed with respect to the support arm 230 and
cannot rotate with respect thereto. As illustrated, the core post
235 has an enlarged base provided by the annular flange 242 whereby
to provide an anti-bootleg structure. There is shown illustrated on
the core post 235 a tissue roll 80 including the usual core 81
having a plurality of sheets 82 thereon. The lower end of the
tissue roll 80 is counterbored as at 83 so as to receive therein
the annular flange 242 defining the enlarged base of the core post
235. It is noted that the upper end of the tissue roll 80 is not so
counterbored, whereby the tissue roll 80 can be applied in only one
position onto the post 235. It will be appreciated, however, that a
tissue roll having a counterbore in each end could also be used on
the core post 235. It will be appreciated that the tissue roll 80
will rotate with respect to the fixed core post 235 only with
difficulty, whereby to retard rotation of the tissue roll 80, and
thus to discourage excessive tissue consumption therefrom.
Referring to FIGS. 18 to 21 of the drawings, there is illustrated a
further modification of the tissue dispenser, and more specifically
there is illustrated an improved lock structure therefor. The
tissue dispenser there illustrated is designated by the numeral
300, and the parts of the tissue dispenser 300 that correspond in
structure to like parts in the tissue dispenser 100 have had
applied thereto numbers in the 300 series that correspond to the
like part in the 100 series described above. It will be seen that
the retaining washer 176 of the dispenser 100 has been enlarged in
the dispenser 300 to provide a retaining washer 376 which carries
integral therewith an annular lock post 375 extending upwardly
therefrom and to a point spaced just a short distance away from the
inner surface of the front panel 311 on the door 310. Mounted on
the door 310 for cooperation with the lock post 375 is a lock latch
380 having a locking end 381 disposed within the lock post 375 and
directed to the left in FIG. 18 and a push button 382 adjacent to
the other end thereof extending through an opening 314 in the front
panel 311. The lock latch 380 further includes an outer end 384
disposed to the right of the push button 382 in FIG. 18.
Associated with the lock latch 380 is a leaf spring 385 extending
through an opening 383 in the lock latch 380 and having a latch end
386 overlying a portion of the locking end 381 and having a post
end 387 overlying and normally in engagement with the outer end of
the lock post 375 at a point spaced from the rear panel 315 of the
door 310. A latch rivet 388 extends through aligned openings in the
front panel 311, the lock latch 380 and the leaf spring 385 to hold
the parts in the assembled positions illustrated. There further is
provided a lock 390 mounted on the front panel 311 of the door 310
and having the usual key opening (not illustrated) for controlling
the position of the movable lock arm 391, the lock arm 391 being
movable between the locking position illustrated in FIGS. 18 and 20
wherein it retains the lock latch 380 in the locking position by
engaging the outer end 384 thereof, and a release position
illustrated in FIG. 21 wherein it is out of the path of movement of
the outer end 384 of the lock latch 380.
With the parts in the locking position illustrated in FIGS. 18 and
20, an unauthorized person is unable to open the door 310. Inasmuch
as the door 310 pivots about the hinge 325, there must be a
substantial component of motion of the front panel 311 to the left
as viewed in FIGS. 18 to 20 in order to accomplish opening of the
door 310 even to a small extent. The engagement of the locking end
381 of the lock latch 380 with the inner surface of the lock post
375 positively prevents such movement of the front panel 311,
thereby effectively to hold the door 310 locked in the closed
position thereof.
Even after the maintenance man moves the lock arm 391 on the lock
390 from the locking position illustrated in FIGS. 18 and 20 to the
closed position illustrated in FIG. 21, the leaf spring 385
maintains the lock latch 380 and the several parts thereof in the
locked position. However, if a maintenance man pushes in the
direction of the arrow in FIG. 21 against the push button 382 to
move the parts to the position illustrated in FIG. 21, it will be
noted that the leaf spring 385 has been deformed and the locking
end 381 of the lock latch 380 has been lifted out of the lock post
375 whereby to provide clearance therebetween, and thus to permit
opening movement of the door 310. After the pressure on the push
button 382 is released, the spring 385 will return the parts
associated therewith to the positions illustrated in FIGS. 18 and
20, thereby to permit the lock arm 391 again to be moved to the
locking position illustrated in FIGS. 18 and 20 and thus to lock
the door 310 in the closed position thereof.
While there have been described what are at present considered to
be certain preferred embodiments of the invention, it will be
understood that various modifications may be made therein, and it
is intended to cover in the appended claims all such modifications
as fall within the true spirit and scope of the invention.
* * * * *