U.S. patent application number 11/428249 was filed with the patent office on 2007-06-21 for card shoe with force resist mechanism.
This patent application is currently assigned to Bally Gaming Inc.. Invention is credited to Allen Fleckenstein.
Application Number | 20070138743 11/428249 |
Document ID | / |
Family ID | 38121951 |
Filed Date | 2007-06-21 |
United States Patent
Application |
20070138743 |
Kind Code |
A1 |
Fleckenstein; Allen |
June 21, 2007 |
CARD SHOE WITH FORCE RESIST MECHANISM
Abstract
A card shoe for holding and distributing playing cards during a
playing card game, where the card shoe can hold multiple decks of
playing cards. The card shoe includes a wedge assembly that biases
playing cards toward a playing card extraction opening. Gravity
and/or other forces, for example a spring force, may bias the wedge
assembly. The wedge assembly includes a wedge block and a roller
subassembly. The roller subassembly includes a shaft, a clutch
assembly, and a roller. In one embodiment, the clutch assembly and
roller are mounted on an offset portion of the shaft so that the
roller can be adjusted relative to a bottom of the wedge block. The
clutch assembly permits the roller to roll in only one direction.
The clutch assembly locks onto the shaft if a force is exerted
which would tend to push the wedge block away from the playing card
extraction opening.
Inventors: |
Fleckenstein; Allen;
(Bellevue, WA) |
Correspondence
Address: |
SEED INTELLECTUAL PROPERTY LAW GROUP, PLLC
701 FIFTH AVENUE, SUITE 5400
SEATTLE
WA
98104
US
|
Assignee: |
Bally Gaming Inc.
Las Vegas
NV
|
Family ID: |
38121951 |
Appl. No.: |
11/428249 |
Filed: |
June 30, 2006 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
60752126 |
Dec 19, 2005 |
|
|
|
Current U.S.
Class: |
273/149R |
Current CPC
Class: |
A63F 1/14 20130101 |
Class at
Publication: |
273/149.R |
International
Class: |
A63F 1/12 20060101
A63F001/12 |
Claims
1. A wedge assembly to bias playing cards toward a playing card
extraction opening of a card shoe, the wedge assembly comprising: a
wedge block having a bottom surface and a card engagement surface
positioned at an angle relative to the bottom surface, the wedge
block receivable in the card shoe; and a roller subassembly having
a roller rotationally coupled to the wedge block to be rotatable in
a first rotational direction and lockable to substantially resist
rotation in a direction opposite the first rotational
direction.
2. The wedge assembly of claim 1, further comprising: a number of
guides extending outwardly from wedge block to engage complementary
structure on the card shoe.
3. The wedge assembly of claim 1 wherein the angle between the card
engagement surface and the bottom surface of the wedge block is an
acute angle.
4. The wedge assembly of claim 1, further comprising: a shaft
coupled to the wedge block, wherein the shaft includes a first
portion concentrically disposed about a first shaft axis and a
second portion eccentrically disposed about a second shaft
axis.
5. The wedge assembly of claim 4 wherein the first shaft axis is
offset from the second shaft axis.
6. The wedge assembly of claim 4 wherein the roller is rotationally
coupled to one of the first or the second portions of the
shaft.
7. The wedge assembly of claim 1 wherein a portion of the roller
extends beyond the bottom surface of the wedge block.
8. The wedge assembly of claim 1, further comprising: a handle
coupled to the wedge block.
9. The wedge assembly of claim 8 wherein the handle is positioned
on a rear portion of the wedge block.
10. The wedge assembly of claim 1, further comprising: a clutch
assembly coupling the roller to the wedge block, wherein the clutch
assembly is lockable onto the shaft when the roller is urged in the
direction opposite the first rotational direction.
11. A wedge assembly to bias playing cards toward a playing card
extraction opening of a card shoe, the wedge assembly comprising: a
wedge block having a bottom surface and a card engagement surface
positioned at an angle relative to the bottom surface, the wedge
block receivable in the card shoe; and a roller subassembly having
a shaft and a roller, the shaft coupled to the wedge block and
having a first portion concentrically disposed about a first shaft
axis and a second portion eccentrically disposed about a second
shaft axis, the roller coupled to the second portion of the shaft
and rotatable about the second shaft axis.
12. The wedge assembly of claim 11 wherein the roller is coupled to
the second portion of the shaft via a clutch assembly.
13. The wedge assembly of claim 12 wherein the clutch assembly is
lockable onto the shaft to permit rotation of the roller in a first
rotational direction and substantially resist rotation of the
roller in a direction opposite the first rotational direction.
14. The wedge assembly of claim 11 wherein the first portion of the
shaft is fixedly coupled to the wedge block to prevent rotation of
the shaft relative to the wedge block.
15. The wedge assembly of claim 11, further comprising: a number of
guides extending outwardly from wedge block to engage complementary
structure on the card shoe.
16. A card shoe comprising: a housing having a playing card support
surface and an opening, the playing card support surface arranged
to receive and support a plurality of playing cards, the opening
sized to permit extraction of at least some of the plurality of
playing cards from the housing; and a wedge assembly having a wedge
block and a roller subassembly, the wedge block includes a bottom
surface and a card engagement surface positioned at an angle
relative to the bottom surface, the wedge block is receivable in
the housing of card shoe, the roller subassembly includes a roller
rotationally coupled to the wedge block and rotatable in a first
rotational direction and lockable to substantially resist rotation
in a direction opposite the first rotational direction.
17. The wedge assembly of claim 16, further comprising: a number of
guides extending outwardly from wedge block to engage complementary
structure on the card shoe.
18. The wedge assembly of claim 16 wherein the angle between the
card engagement surface and the bottom surface of the wedge block
is an acute angle.
19. The wedge assembly of claim 16, further comprising: a shaft
coupled to the wedge block, wherein the shaft includes a first
portion concentrically disposed about a first shaft axis and a
second portion eccentrically disposed about a second shaft
axis.
20. The wedge assembly of claim 19 wherein the first shaft axis is
offset from the second shaft axis.
21. The wedge assembly of claim 19 wherein the roller is
rotationally coupled to one of the first or the second portions of
the shaft.
22. The wedge assembly of claim 16 wherein a portion of the roller
extends beyond the bottom surface of the wedge block.
23. The wedge assembly of claim 16, further comprising: a handle
coupled to the wedge block.
24. The wedge assembly of claim 23 wherein the handle is positioned
on a rear portion of the wedge block.
25. The wedge assembly of claim 16, further comprising: a clutch
assembly coupling the roller to the wedge block, wherein the clutch
assembly is lockable onto the shaft when the roller is urged in the
direction opposite the first rotational direction.
26. The card shoe of claim 16 wherein the opening in the housing of
is sized to permit extraction of one playing card at a time.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit under 35 U.S.C. .sctn.
119(e) of U.S. Provisional Patent Application No. 60/752,126 filed
Dec. 19, 2005.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] This description generally relates to the field of table
gaming, and more particularly to card holding devices, for example
card shoes that hold a number of cards during a playing card game
and allow cards to be extracted from the card shoe one at a
time.
[0004] 2. Description of the Related Art
[0005] Conventional card shoes 10 are typically sized to receive
two to eight standard decks of playing cards, with fifty-two (52)
playing cards per standard playing card deck.
[0006] FIG. 1 shows a conventional, non-automated card shoe 10 that
includes a housing 12, a playing card support surface 14, and a
playing card wedge 16. The housing includes an opening 18 where
playing cards are extracted one at a time during a playing card
game. The housing 12 includes a playing card support surface 14
sloping at a downward angle 20 going from the rear of the housing
12 to the front. The playing card support surface 14 supports the
playing cards and the playing card wedge 16. The playing card wedge
16 includes a slanted surface 22 that skews or offsets the playing
cards in the housing 12 relative to one another. An optional roller
24 may be rotationally coupled to the playing card wedge 16 to
allow the playing card wedge 16 to easily move down the playing
card support surface 14. The playing cards are compressed between
the slanted surface 22 of the playing card wedge 16 and a
complementary, slanted front cover 26 of the housing 12. The
downward angle 20 of the playing card support surface 14 takes
advantage of gravity to bias the playing cards toward the front of
the housing 12 under their own weight as well as under the weight
of the playing card wedge 16.
[0007] Another type of card shoe, which is not illustrated, is
similar to the above-described card shoe except that a spring
couples the playing card wedge to the housing. The spring operates
alone or to augment the force of gravity by applying a force to
bias the playing card wedge toward the opening in the housing. As
the playing card wedge moves closer to the opening, the spring
contributes less and less to the overall force biasing the playing
card wedge toward the opening. At some point, before all the
playing cards are removed from the card shoe, the force of the
spring biasing the playing card wedge toward the opening becomes
nearly negligible. This situation typically occurs when there are
less than two decks (i.e., 104 playing cards) remaining in the card
shoe.
[0008] For either of the above-described conventional card shoes,
the amount of force biasing the playing cards toward the opening in
the card shoe decreases as fewer cards remain in the card shoe. In
the first described card shoe, the weight of the playing cards
contributes significantly to the force biasing the playing cards
toward the front of the card shoe. Consequently, removing the
playing cards from the card shoe results in less resistance as the
dealer applies finger pressure to remove a playing card from the
card shoe. Likewise, the reduction in the biasing force applied by
the spring in the second type of card shoe, also results in less
resistance as the dealer applies finger pressure to remove a
playing card from the card shoe.
[0009] The practical consequence of these conventional card shoes
is that it becomes more difficult for the dealer to extract the
remaining playing cards from the card shoe when there is little to
no resistance or biasing force (e.g., (wedge mass+card mass) or
(wedge mass+spring force+card mass)) against the finger pressure
applied on the playing card by the dealer. Thus, the dealer is
often unable to firmly contact the playing card present in the
opening of the housing, thus making it difficult for the dealer's
finger to frictionally grip and withdraw the next playing card to
be dealt. As the dealer pushes harder against the playing card, the
wedge reacts by moving rearward in the housing, further
exacerbating the situation and causing the dealer to fish for the
playing card in the card shoe. Accordingly, it would be desirable
to have a card shoe that addresses the aforementioned problems and
permits easier and smoother removal of the playing cards from the
card shoe, without regard to the number of playing cards remaining
in the card shoe.
SUMMARY OF THE INVENTION
[0010] This description generally relates to a card shoes for
holding and distributing playing cards during a playing card game.
The card shoe typically holds between two (2) to eight (8) decks of
playing cards. The card shoe includes a wedge that biases the
playing cards toward a playing card extraction opening in the card
shoe. The wedge can be acted on by gravity, another mechanical
mechanism, for example a spring, and/or both. The wedge may include
a shaft, a clutch assembly, and a roller, where the clutch assembly
permits the roller to rotate in only one direction. When the clutch
assembly locks onto the shaft, the wedge resists backward movement
within the card shoe, which in turn allows a dealer to put pressure
on the playing cards being extracted without pushing the wedge away
from the playing card extraction opening.
[0011] In one aspect, a wedge assembly to bias playing cards toward
a playing card extraction opening of a card shoe includes a wedge
block having a bottom surface and a card engagement surface
positioned at an angle relative to the bottom surface, the wedge
block receivable in the card shoe; and a roller subassembly having
a roller rotationally coupled to the wedge block to be rotatable in
a first rotational direction and lockable to substantially resist
rotation in a direction opposite the first rotational
direction.
[0012] In another aspect, a wedge assembly to bias playing cards
toward a playing card extraction opening of a card shoe includes a
wedge block having a bottom surface and a card engagement surface
positioned at an angle relative to the bottom surface, the wedge
block receivable in the card shoe; and a roller subassembly having
a shaft and a roller, the shaft coupled to the wedge block and
having a first portion concentrically disposed about a first shaft
axis and a second portion eccentrically disposed about a second
shaft axis, the roller coupled to the second portion of the shaft
and rotatable about the second shaft axis.
[0013] In yet another aspect, a card shoe includes a housing having
a playing card support surface and an opening, the playing card
support surface arranged to receive and support a plurality of
playing cards, the opening sized to permit extraction of at least
some of the plurality of playing cards from the housing; and a
wedge assembly having a wedge block and a roller subassembly, the
wedge block includes a bottom surface and a card engagement surface
positioned at an angle relative to the bottom surface, the wedge
block is receivable in the housing of card shoe, the roller
subassembly includes a roller rotationally coupled to the wedge
block and rotatable in a first rotational direction and lockable to
substantially resist rotation in a direction opposite the first
rotational direction.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In the drawings, identical reference numbers identify
similar elements or acts. The sizes and relative positions of
elements in the drawings are not necessarily drawn to scale. For
example, the shapes of various elements and angles are not
necessarily drawn to scale, and some of these elements are
arbitrarily enlarged and positioned to improve drawing legibility.
Further, the particular shapes of the elements as drawn, are not
intended to convey any information regarding the actual shape of
the particular elements, and have been solely selected for ease of
recognition in the drawings.
[0015] FIG. 1 is an isometric, partially exploded view of a
conventional card shoe having a card wedge, according to one
illustrated embodiment.
[0016] FIG. 2 is an isometric view of a card shoe having a wedge
assembly and an opening for extracting playing cards from the card
shoe, according to one illustrated embodiment.
[0017] FIG. 3 is a top, front, left side isometric view of the
wedge assembly of FIG. 2 mounted to a roller subassembly.
[0018] FIG. 4 is a bottom, front, left side isometric view of the
wedge assembly of FIG. 2.
[0019] FIG. 5 is a cross-sectional view of the roller subassembly
of the wedge assembly, according to one illustrated embodiment
where the roller subassembly includes a shaft, a clutch assembly,
and roller mounted on the shaft.
[0020] FIG. 6 is a cross-sectional view of the shaft of FIG. 5
illustrating an offset portion of the shaft in further detail.
[0021] FIG. 7 is a right side plan view of the shaft of FIG. 6.
[0022] FIG. 8 is a cross-sectional view of the card shoe taken
along line 8-8 of FIG. 2.
DETAILED DESCRIPTION OF THE INVENTION
[0023] In the following description, certain specific details are
set forth in order to provide a thorough understanding of various
embodiments of the invention. However, one skilled in the art will
understand that the invention may be practiced without these
details. In other instances, well-known structures associated with
card shoes have not been shown or described in detail to avoid
unnecessarily obscuring the description.
[0024] Unless the context requires otherwise, throughout the
specification and claims which follow, the word "comprise" and
variations thereof, such as, "comprises" and "comprising" are to be
construed in an open, inclusive sense, that is as "including, but
not limited to."
[0025] Reference throughout this specification to "one embodiment"
or "an embodiment" means that a particular feature, structure or
characteristic described in connection with the embodiment is
included in at least one embodiment. Thus, the appearances of the
phrases "in one embodiment" or "in an embodiment" in various places
throughout this specification are not necessarily all referring to
the same embodiment. Furthermore, the particular features,
structures, or characteristics may be combinable in any suitable
manner in one or more embodiments.
[0026] The headings provided herein are for convenience only and do
not interpret the scope or meaning of the claimed invention.
[0027] This description generally relates to card shoes for holding
and distributing playing cards during a playing card game. Card
shoes are generally used in casinos and often hold between two (2)
to eight (8) decks of playing cards. However, it is understood that
some card shoes may hold a fewer or a greater number of playing
cards. Further, some card shoes may be automated, employing
electromechanical and/or electro-optical components to read
machine-readable and/or human readable indicia carried by the
playing cards.
[0028] FIG. 2 shows a card shoe 100 having a housing 102 and a
wedge assembly 104, according to the illustrated embodiment. The
housing 102 includes a playing card support surface 106, sidewalls
108, and a front cover 110. The playing card support surface 106,
the sidewalls 108, and the front cover 110 form a receptacle 111
configured to receive and support a number of playing cards (not
shown). The playing card support surface 106 may or may not slope
downward from the rear of the housing 102. As noted above, a sloped
surface may take advantage of gravity as the sole or partial
biasing force that urges the playing cards toward the opening 112
of the housing 102.
[0029] The front cover 110 includes an opening 112 from which a
dealer can extract the playing cards from the card shoe 100. The
opening 112 is sized to allow the dealer to place a finger or two
onto the next playing card that is to be removed from the card shoe
100. The playing card support surface 106 can cooperate with the
front cover 110 to skew or otherwise offset the playing cards
relative to one another, which tends to increase the likelihood
that playing cards are extracted one at a time from the card shoe
100. It is understood that sometimes, however, more than one
playing card is extracted from the card shoe 100, whether done
intentionally or because two playing cards become stuck
together.
[0030] The housing 102 further includes a slot or track 114. The
track 114 can be sloped or otherwise configured to cause the wedge
assembly 104 to move forward, toward the opening 112. One
embodiment of the sloped track 114 is best illustrated in FIG. 7. A
spring 116 may be coupled to guides 117, 119 received in the track
114. The guides 117 may be fixed to the housing, whereas the guides
119 couple the wedge assembly 104 to the spring 116 and are
operable to move along the track 114. In one embodiment, the spring
116 is an extension spring anchored proximate the front of the
housing 102 that biases or urges the wedge assembly 104 toward the
opening 112. In another embodiment, the spring is a compression
spring anchored proximate the rear of the housing 102 that biases
or urges the wedge assembly 104 toward the opening 112.
[0031] FIGS. 3 and 4 show the wedge assembly 104 having a wedge
block 105 configured with a sloped engagement surface 118 disposed
between first and second side surfaces 120. The wedge assembly 104
further includes guides 119, 122 extending from each of the first
and second surfaces 120. The guides 119 are coupled to the spring
116 (FIG. 2) and may also be supported in the track 114 of the
housing 102 as mentioned above. The guides 122 may also be
supported in the track 114 of the housing 102 counteracting any
overturning moment that may cause the wedge assembly 104 to rotate
about the guides 119. FIG. 4 shows a roller 124 of a roller
subassembly 125, which is part of the wedge assembly 104, extending
at least slightly below a bottom surface 126 of the wedge block
105.
[0032] FIG. 5 shows the roller subassembly 125 in detail. The
roller subassembly 125 includes the roller 124, which is rotatably
fixed to an anti-reversing clutch assembly 126, which in turn is
rotatably coupled to a shaft 128. In one embodiment, the roller 124
is made from a urethane material and press fit onto the clutch
assembly 126. The clutch assembly 126 may be an overrunning clutch
or drawn cup roller clutch, such as or similar to those described
in U.S. Pat. Nos. 3,994,377; 3,993,177; 3,993,176; 3,990,555;
3,972,573; 3,942,616; 3,937,312; and 3,937,311. This type of clutch
assembly 126 permits the roller 124 to freely rotate in a first
direction, yet positively locks onto the shaft 128 to substantially
prevent reverse rotation (i.e., rotation that is counter or
opposite to the first rotational direction) of the roller 124.
[0033] The shaft 128 includes a tool engagement portion 130 and a
shaft centerline or axis 132. It is understood and appreciated that
the shaft centerline 132 is to be distinguished from a roller
rotational centerline or axis 133, as illustrated and described in
more detail below. During operation, the roller 124 and portions of
the clutch assembly 126 rotate in unison on the shaft 128 and about
the roller rotational axis 133. In the illustrated embodiment, the
shaft 128 does not rotate relative to the wedge assembly 104.
[0034] FIGS. 6 and 7 show the shaft 128 having a first section 134,
a second section 136, and a third section 138, where the second
section 136 is disposed between the first and third sections 134,
138. In the illustrated embodiment, the second section 136 is
offset relative to the shaft axis 132 and concentrically formed
about the roller rotational axis 133. The first and third sections
134, 138 are not offset, which means these sections are
concentrically formed about the shaft axis 132. The eccentricity of
the second section 136 is indicated by identifying that a first
radial depth 140 of the second section 136 extends less than a
second radial depth 142 on an opposite side (i.e., 180 degrees) of
the second section 136. Since both radial depths 140, 142 are
measured from the shaft axis 132, it is understood that the second
section 136 must be eccentrically formed about and/or offset
relative to the shaft axis 132. The radial depths 140, 142 vary in
height about the circumference of the second section 136 of the
shaft 128.
[0035] The first section 134 and the third section 138, on the
other hand, are concentrically formed about and/or not offset
relative to the shaft axis 132. The radial depths 144, 146, which
are measured from the shaft axis 132 are equivalent, thus it is
understood that the first section 134 and the third section 138 are
concentric with respect to the shaft axis 132 and with respect to
one another.
[0036] One purpose for eccentrically offsetting the second section
136 is to allow for the adjustment of the roller 124 beyond the
bottom surface 126 of the wedge block 105 (FIG. 4). Adjusting the
roller 124 to protrude by a lesser or greater amount beyond the
bottom surface 126 is accomplished by engaging the tool engagement
portion 130 of the shaft 128 with an appropriate tool, for example
a screwdriver. Because the shaft 128 is fixed to the wedge assembly
104, the roller 124 and portions of the clutch assembly 126 rotate
about the second section 136 of the shaft 128.
[0037] FIG. 8 shows the card shoe 100 as the wedge assembly 104 is
moved along the track 114. As the dealer removes each playing card,
the biasing force of the spring 116, the weight of the wedge
assembly 104, and/or the weight of the playing cards urges the
wedge assembly 104 toward the front cover 110. The roller 124 is
free to rotate in a direction indicated by the arrow 148. As the
dealer applies pressure to the next card to be removed, the
anti-reversing clutch assembly 126 positively locks onto the shaft
128 to substantially prevent reverse rotation of the roller 124 and
thus prevents the wedge assembly 104 from moving away from the
front cover 110 and the opening 112 of the housing 102. The second
section 136 of the shaft 128 and the frictional engaging portion of
the clutch assembly 126 may be relatively dimensioned to achieve a
desired amount of frictional locking of the clutch assembly 126
onto the second section 136 of the shaft 128.
[0038] Once all or a desired number of cards are removed from the
card shoe 100, the wedge assembly 104 can be reset in the card shoe
100. In one embodiment, the wedge assembly 104 includes a handle
150 that can be used to separate the roller 124 from the playing
card support surface 106 of the card shoe 100. By lifting up on the
handle 150, the roller 124 will no longer be in contact with the
playing card support surface 106 and the wedge assembly 104 can be
easily moved away from the front cover 110 and the opening 112 to
allow more playing cards to be loaded in the receptacle 111 of the
card shoe 100.
[0039] The various embodiments described above can be combined to
provide further embodiments. All of the above U.S. patents, patent
applications, provisional patent applications and publications
referred to in this specification, to include, but not limited to
U.S. Pat. Nos. 3,994,377; 3,993,177; 3,993,176; 3,990,555;
3,972,573; 3,942,616; 3,937,312; and 3,937,311; and U.S.
Provisional Application No. 60/752,126, filed Dec. 19, 2005 are
incorporated herein by reference in their entirety. Aspects of the
invention can be modified, if necessary, to employ various systems,
devices and concepts of the various patents, applications and
publications to provide yet further embodiments of the
invention.
[0040] These and other changes can be made to the invention in
light of the above-detailed description. In general, in the
following claims, the terms used should not be construed to limit
the invention to the specific embodiments disclosed in the
specification and the claims, but should be construed to include
all card shoes usable in the aspect of gaming and methods that
operate in accordance with the claims. Accordingly, the invention
is not limited by the disclosure, but instead its scope is to be
determined entirely by the following claims.
* * * * *