U.S. patent application number 11/508785 was filed with the patent office on 2008-02-28 for fencing and missile shooting toy.
Invention is credited to Veronica Pul Chung Wong.
Application Number | 20080051002 11/508785 |
Document ID | / |
Family ID | 39197247 |
Filed Date | 2008-02-28 |
United States Patent
Application |
20080051002 |
Kind Code |
A1 |
Chung Wong; Veronica Pul |
February 28, 2008 |
Fencing and missile shooting toy
Abstract
A toy fencing sword that is adapted to also fire its blade tip
as a missile. The sword's launchable blade is comprised of a soft
yet semi-rigid closed-cell foam material which makes it substantial
enough for battering and poking as a sword, yet safe and painless
enough to danger during missile-firing. The arrangement of the
sword disguises its missile-firing capability from opponents.
Inventors: |
Chung Wong; Veronica Pul;
(Hong Kong, HK) |
Correspondence
Address: |
FRANCIS EDWARD MARINO
394 MEREDITH NECK ROAD
MEREDITH
NH
03253
US
|
Family ID: |
39197247 |
Appl. No.: |
11/508785 |
Filed: |
August 24, 2006 |
Current U.S.
Class: |
446/473 |
Current CPC
Class: |
A63H 29/165 20130101;
F41B 11/641 20130101; A63H 33/18 20130101; A63H 33/009 20130101;
F41B 13/02 20130101 |
Class at
Publication: |
446/473 |
International
Class: |
A63H 33/30 20060101
A63H033/30 |
Claims
1. A fencing and missile-shooting toy having a rearward toy end to
be held by a user and a forward toy end to be directed at an
opponent and comprising: an elongate rigid housing comprising a
tubular inner air chamber and a tubular blade support shaft having
an air passageway there-through in communication with said air
chamber, said air chamber and said shaft being substantially
coaxially aligned, said shaft projecting coaxial with and
longitudinally from said housing towards said forward toy end and
said shaft having a forward shaft end; a soft elongate blade
portion adjacent to said forward toy end and comprising a forward
blade tip at said forward toy end and a longitudinal body having a
hollow interior rearward portion adapted to fit matingly and
removably over said support shaft, said support shaft providing
structural support to said blade portion and comprising means for
removably fixing said blade portion to said housing such that said
blade portion is coaxially aligned with said housing and such that
said housing and blade portion form a toy sword for play fencing
when said blade portion is so fixed to said shaft; a piston,
longitudinally movable within said air chamber to increase the air
volume in said air chamber when said piston is moved rearwardly and
to decrease the air volume therein when said piston is moved
forwardly; said air passage having an air exhaust opening adjacent
said forward shaft end for directing air from said air chamber
forwardly towards said blade portion such that air displaced by
said decreasing air volume of said air chamber during said forward
movement of said piston is forced from said air chamber through
said exhaust opening and at said blade portion to expel said blade
portion forwardly from said blade support shaft and from said sword
as a missile from the user towards the opponent.
2. The toy of claim 1 further comprising a hilt adjacent said
rearward toy end and coaxially aligned with said blade portion for
holding by the user during fencing, said hilt having a hollow
interior comprising a rearward portion of said air chamber, and
wherein said piston has a rearward piston end comprising a pommel
for grasping by the user for causing said movement of said piston,
said piston being disposed and movable within said hollow interior
of said hilt.
3. The toy of claim 2 further comprising a one-way valve for
allowing air to enter said air chamber during said rearward
movement of said piston.
4. The toy of claim 3 wherein said one-way valve is disposed in
said pommel.
5. The toy of claim 4 wherein said one-way valve comprises a hole
and a hole stopper, said hole stopper adapted to uncover said hole
and allow the intake of air through said hole into said air chamber
during said rearward movement of said piston and to cover said hole
and deny the exhaust of air through said hole during said forward
movement of said piston.
6. The toy of claim 5 wherein said soft elongate blade portion is
comprised of a soft foam material.
7. The toy of claim 6 wherein said soft foam material is selected
from the group comprising closed cell polypropylene foam, closed
cell ethylene vinyl acetate foam, and neoprene foam.
8. The toy of claim 7 wherein said soft foam is closed cell
polypropylene foam.
9. The toy of claim 8 wherein said longitudinal body of said soft
elongate blade portion is solid and heavier than said hollow
interior rearward portion so that the center of gravity of said
blade portion is disposed substantially towards the forward tip of
said blade portion for providing balance and stability during
missile flight.
10. The toy of claim 9 wherein said forward blade tip is
substantially conically shaped.
11. A toy sword adapted for play fencing and comprising a hilt and
an elongate blade, said hilt adapted to receive a piston being
longitudinally movable relative to said hilt and slidable within an
elongate cylindrical air chamber within said hilt, said air chamber
being expanded during an expansion stroke by rearward movement of
said piston and being compressed during a compression stroke by
forward movement of said piston, said air chamber having an air
outlet adapted to allow the rapid exhaustion of air from said
chamber during said compression stroke, said blade further
comprising a removable missile portion disposed longitudinally
transverse from said hilt and adjacent to and in communication with
said air outlet such that air exiting said chamber through said
compression stroke forces said missile portion from said sword as a
projectile.
12. The toy sword of claim 11 wherein said missile portion is
comprised of a soft foam material.
13. The toy sword of claim 12 wherein said soft foam material is a
closed-cell foam.
14. The toy sword of claim 13 wherein said closed-cell foam is
selected from the group including polyethylene foam, polypropylene
foam, ethylene vinyl acetate foam, or neoprene foam.
15. The toy of claim 14 wherein said missile portion has a
bullet-shaped tip.
Description
FIELD OF THE INVENTION
[0001] The present invention is a fencing and missile shooting
apparatus for use at play. More specifically, it is a toy sword
having a soft foam-covered blade for use in play fencing and having
a tubular air piston within the sword's housing for alternative use
in firing the blade's soft foam tubular cover as a projectile. The
materials and arrangement of the sword make it particularly
well-adapted for safe and painless play.
BACKGROUND AND OBJECTS OF THE INVENTION
[0002] Sword components are defined according to well-known
terminology, which will be used though-out this description.
Typically, swords such as that of the present invention comprise a
handle and a blade separated by a guard.
[0003] The blade is the elongate portion used to poke or batter an
opponent during battle, and generally has a sharp tip at the
sword's forward end.
[0004] The handle is the end of the sword grasped by the user
during battle, and comprises a hilt portion for grasping by the
user's hand and generally includes a bulbous pommel at the rearmost
tip of the handle to prevent the hand from slipping off the
handle.
[0005] The guard separates the handle from the blade, prevents the
hand from sliding forward onto the blade, prevents the blade from
extending too far into a sheath during storage, and is often made
ornate to improve the appearance of the sword.
[0006] Toy swords and other fencing toys are well known in many
forms in the prior art. Numerous varieties of toys swords and other
bladed battering toys, having soft blades or tips for safety are
made and have been made over the years for use predominantly by
children while play fencing or pretend battling.
[0007] Additionally, the prior art is filled with missile-shooting
toys, such as toy guns, which use compressed air or the movement of
a piston to eject and propel a soft foam missile. The use of a soft
foam material eliminates the pain and hazard of being struck by
such a missile, while the density and formability of components
made of soft foam allows for the manufacture of missiles that have
sufficient flight and trajectory characteristics for play without
danger.
[0008] It is the primary object of the present invention to provide
an improved play-fencing sword that may also be used as a missile
shooting toy, combining the benefits of play battering and
missile-shooting in a non-obvious arrangement that disguises the
intended next move of the combatants.
[0009] It is another object of the invention to provide a
missile-firing toy sword which is inexpensive to manufacture and
has a simple yet effective arrangement of components to minimize
the expense and effort of manufacture and increase reliability.
[0010] Further objects and advantages of the invention will be
apparent upon a review of the following description and drawings of
the invention, including the preferred embodiment thereof.
SUMMARY OF THE INVENTION
[0011] The present invention comprises a toy fencing sword that is
adapted to also fire a portion of its blade as a missile. The
launchable portion of the blade is made of a soft foam material
which is safe and painless during play, yet which is dense enough
so that, when formed in such an aerodynamic shape as a sword blade,
it is able to maintain a stable trajectory and fly a sufficient
distance for acceptable play. The launchable portion of the blade
is made preferably of polyethylene (PE) closed cell foam. This
closed cell material is soft yet sufficiently rigid, so that the
blade will not cause harm or pain during use, yet will maintain its
shape during flight.
[0012] In the preferred embodiment, the sword is comprised of a
rigid housing having an inner chamber comprised of a hollow
cylindrical tube and a piston which slides within the tube to
increase or decrease the air volume within the chamber. Movement of
the piston is controlled at the handle end of the sword by grasping
the sword's pommel for convenient actuation by the user during
battle. The above-mentioned portion of the sword's blade is a soft
foam launchable outer surface.
[0013] Controlled movement of the piston relative to the housing
and the resulting change of the volume of the inner chamber cause
the pulling of air into and forcing air out of the chamber in a
controlled fashion.
[0014] During a rearward expansion stroke of the piston, air is
inhaled into the chamber through a one-way intake valve in the
pommel.
[0015] During a forward compression stroke of the piston that
inhaled air is exhausted from the chamber through a hole in the
housing which directs the exhausting air towards the soft
launchable blade portion to fire it as a missile from the
housing.
[0016] The sword's user causes such expansion by simply grasping
the pommel and retracting the piston from the housing. That air
then exits in a blast though the opposite end during the opposite
compression stroke to pneumatically force the blade from the sword
as a missile.
[0017] The shape and arrangement of the sword's components provide
the ability to actuate the firing of the missile quickly from the
normal holding position used during fencing, without fore-warning,
which further enhances the surprise capability of the missile
firing function. The shape and configuration of the toy sword of
the present invention disguises its missile-shooting capability
from opponents who are not themselves familiar with the sword. The
arrangement of the missile-shooting mechanism enables the user to
shoot the missile without substantially repositioning his/her hands
from the fencing position to catch opponents by surprise. The
sword's launchable blade is made of a soft foam material, and
serves as the missile which may be instantly fired from the
sword.
[0018] A more complete understanding of the invention will be
realized upon review of the following description of the preferred
embodiment of the invention and the appended drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] FIG. 1 is a side view of a toy fencing sword according to
the preferred embodiment of the invention,
[0020] FIG. 2 is an exploded view of the sword of FIG. 1 showing
the firing if the blade as a missile,
[0021] FIG. 3 is a cross-sectional exploded view through the sword
of FIG. 1 showing the firing if the blade as a missile,
[0022] FIG. 4 is a partial cross-sectional view through the handle
portion of the sword of FIG. 1,
[0023] FIG. 5 is a partial cross-sectional view of the air-intake
valve of the handle portion of FIG. 4, showing the intake of air
during the expansion stroke of the handle portion,
[0024] FIG. 6 is a partial cross-sectional view of the air-intake
valve of the handle portion of FIG. 4, showing the blocking of air
outflow there-through during the compression stroke of the handle
portion, and
[0025] FIG. 7 is an end view of the handle portion and intake valve
of FIG. 4.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0026] The preferred embodiment of the invention is shown in FIGS.
1 though 7, where there is depicted a toy sword 100 for fencing or
missile-shooting.
[0027] The sword of the present invention comprises a rigid housing
102 which includes the guard 104, a rigid blade base 106, and the
hilt 108. Specifically, the elongate housing comprises the sword's
hilt and the base of the blade together with the guard, in a rigid
and unitary arrangement, with the hilt 108 and blade base 106
coaxially aligned.
[0028] A cylindrical hollow inner chamber 112 is disposed within
the housing, extending from the forward end 114 of the base of the
blade, back and through the rearmost end 116 of the hilt. The rear
end of the chamber 116, and thus of the hilt, is open, and is
adapted to receive piston 120, which freely fits within the open
end 116 of the hilt and slides longitudinally within the inner
chamber 112 to increase or decrease the volume of the chamber. The
air volume within chamber is thusly increased as the piston is
pulled rearwardly away from the housing during an expansion stroke
and is decreased as the inner housing is pushed back forwardly into
the housing during a compression stroke.
[0029] The expansion stroke is limited by extension tether 122,
which connects the piston to the housing in a manner that allows
free longitudinal relative movement between the piston and housing,
but which retains the piston from pulling completely free from the
housing. Tether 122 is comprised of a non-stretchable string, to
abruptly deny rearward motion of the piston as it nears the point
where continued motion would cause its removal from the housing.
Alternatively, tether could be made of an elastic string and could
assist to pull the piston back into the housing when it has been
left accidentally extended.
[0030] The compression stroke is limited by contact between the
rear most end 116 of the hilt and the forward edge 124 of pommel
126 at the rearmost end of the piston, which is too large in
diameter to fit into the chamber.
[0031] With the piston inserted into chamber 112, the chamber is
closed except of an air exhaust hole 130, at the forward end 114 of
the chamber and an air inlet valve 132 at the rearward pommel end
of the piston. The air inlet valve 132 comprises a plurality of
holes 134 through the rearward end 136 of the pommel 126 which
allow pneumatic communication between chamber 112 and the outer
environment, and rubber stopper 140 disposed within the pommel
which is adapted to move forward and rearward on longitudinal post
142 and is biased by the flow of air against or away from the
plurality of holes 134. Incoming air during the expansion stroke
forces the stopper 140 from the holes to allow air intake though
the holes, as shown in FIG. 5, but the stopper is forced back
against the holes by the pressure of air attempting to escape from
the chamber to block such communication and any air exhaust passage
through the holes during the compression stroke, as shown in FIG.
6.
[0032] At the forward-most end of the blade's base is disposed
hollow blade mounting shaft 150, which receives and positions the
removable soft blade portion 152 that forms the battering and
fencing portion and launchable portion of the blade.
[0033] The missile-shaped soft blade portion 152 is preferably made
of closed-cell polyethylene foam to avoid injury and pain during
fencing, or when used as a missile which may be launched from the
sword. Other materials may be substituted for polyethylene foam,
such as ethylene vinyl acetate closed-cell foam, neoprene foam, or
numerous similarly soft and sufficiently dense materials. The
elongate blade portion 152 comprises a hollow base portion 154
which fittingly mates with the housing's mounting shaft 150, a
solid shaft portion 156, and a bullet-shaped tip 158.
[0034] During normal fencing play, the fitted attachment of the
hollow base portion 154 of soft blade portion 152 onto the mounting
shaft 150 is sufficiently snug to hold the blade portion 152 onto
the housing 102 without inadvertent removal, and the skeletal
support provided to the soft blade portion by the rigid mounting
shaft 150 is sufficient to allow the user to poke and batter
opponents without having the blade collapse or bend.
[0035] The hollow interior 160 of the mounting shaft 150
communicates pneumatically with the air exhaust hole 130 so that
air forced from chamber 112 by the decreasing chamber volume during
the compression stroke of the piston is directed through exhaust
hole 130, through the mounting shaft 150, and is forced out through
launching hole 162 at the forward tip 164 of the mounting shaft in
a powerful blast.
[0036] During play fencing, the user may at anytime decide to
launch the soft blade portion as a missile towards an opponent in a
surprise attack, as follows;
[0037] First, while holding the hilt 108 with one hand, the user
grasps the pommel 126 with the other hand and pulls it rearward as
far as the tether 122 will allow. Expansion of the chamber 112
caused by the motion of the piston 120 relative to the housing 102,
as shown in FIGS. 2, 4 and 5, causes air to be inhaled into the
expanding inner chamber 112 through the air inlet valve 132. Less
preferably, intake holes could be positioned elsewhere to allow air
to enter the expanding chamber during the expansion stroke of
piston, such as through housing.
[0038] Subsequent rapid compression of piston 120 relative to the
housing, as shown in FIGS. 1 and 6, causes that air to be exhaled
through exhaust hole 130, mounting shaft 150 and launching hole 162
in a powerful blast. One-way air inlet valve 132 in the pommel,
which allowed air to enter the chamber during the expansion stroke,
now denies exhaust of the air from passing out of the chamber 112
though holes 134, to thereby force all exhausting air to be
directed though the launching hole 162 and thereby maximize the
intensity of this powerful blast.
[0039] The fit of the missile-shaped launchable blade portion 152
to the mounting shaft 150, which is sufficiently snug for fencing
and battering play, is insufficient to retain the blade portion on
the shaft against the force of the powerful blast, and the blade
portion 152 is rapidly ejected from the post as a missile, as shown
in FIG. 2.
[0040] Because the rearward portion 154 of soft blade portion 152
is hollow for mating with mounting shaft 150, it is lighter than
the solid forward portion of the blade portion and the
center-of-mass of the missile is substantially forward of the blade
portion 152. The missile is therefore especially well-adapted for
missile-like trajectory, with hollow rear portion 154 serving
basically as a stabilizing tail during flight.
[0041] This positioning of the center of mass and the aerodynamic
shape of the elongate foam blade with its bullet-shaped tip 158
make it well adapted for flight and suited for accurate aiming.
During propulsion of tip through the air, this arrangement causes
the missile to maintain a stabile and straight course, without
tumbling, curving, or erratic movement.
[0042] One can also readily appreciate that by use of the sword's
pommel 126 to actuate the propulsion of the missile and the
disguising of the blade portion 152 as an integral part of the
sword, it allows the user to surprise opponents who may not be
aware of the missile-firing function of sword. In fact, one using
the sword in its typical fencing mode and thereby grasping it by
the pommel needs only to quickly draw back and forth on the pommel
while aiming the sword at the opponent, to fire an unexpected
missile. The invention allows the user a surprising option while
battling against his/her foes.
[0043] It will be appreciated by those skilled in the applicable
arts that the foregoing is merely one of many possible embodiments
of the invention, and that the invention should therefore only be
limited according to the following claims.
* * * * *