U.S. patent number 3,751,032 [Application Number 05/227,996] was granted by the patent office on 1973-08-07 for interconnected jumping sticks.
Invention is credited to John F. Boyle.
United States Patent |
3,751,032 |
Boyle |
August 7, 1973 |
INTERCONNECTED JUMPING STICKS
Abstract
A jumping stick arrangement in which two jumping sticks are
arranged in parallel spaced relation and are interconnected by a
laterally extending frame so that two individuals can jump in
unison. The laterally extending frame connecting the jumping sticks
can be arranged so as to permit one jumping stick to be moved in a
circle at least part way around the other jumping stick.
Inventors: |
Boyle; John F. (Pierceton,
IN) |
Family
ID: |
22855320 |
Appl.
No.: |
05/227,996 |
Filed: |
February 22, 1972 |
Current U.S.
Class: |
482/77 |
Current CPC
Class: |
A63B
25/08 (20130101); A63B 21/285 (20130101) |
Current International
Class: |
A63B
25/00 (20060101); A63B 25/08 (20060101); A63b
025/08 () |
Field of
Search: |
;272/57E,60,70.3,70.1,70.2 ;3/4 ;D34/5A,14E |
Foreign Patent Documents
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463,169 |
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Jul 1928 |
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DD |
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240,761 |
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Oct 1964 |
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OE |
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919,044 |
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Feb 1963 |
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GB |
|
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Stouffer; R. T.
Claims
I claim:
1. In a jumping stick structure comprising, in combination, a pair
of individual jumping sticks in spaced relation, link means
extending laterally between said sticks, connecting means
connecting the opposite ends of said link means to respective ones
of said sticks, a hand graspable portion at the upper end of each
stick, a surface engageable portion at the lower end of each stick,
a foot engageable portion on each stick spaced upwardly from said
surface engageable portion, each stick including a member fixedly
interconnecting said hand graspable and foot engageable portions
together for movement in unison and relative to said surface
engageable portion, said link means comprising a first link
extending between said sticks at about the level of said foot
engageable portions of said sticks and a second link extending
between said sticks at a level substantially below said hand
graspable portion but substantially above said foot engageable
portions.
2. A jumping stick structure according to claim 1 in which said
sticks are held parallel to each other by said link means.
3. A jumping stick structure according to claim 1 in which said
connecting means includes a pivot joint near at least one of said
sticks in which said pivot joint defines a vertical pivot axis to
permit arcuate movement of said sticks relative to each other.
Description
The present invention relates to jumping sticks and is particularly
concerned with an arrangement in which two jumping sticks are
interconnected for simultaneous use by two individuals.
Jumping sticks are a well known amusement and exercise item and
consist, in general, of telescoping tubular members which are
spring urged in the separating direction and with the upper one of
the tubular members having hand graspable means on the upper end
and foot engageable means on the lower end and with the lower one
of the tubular members having a floor or ground engaging element on
the extreme lower end. In the use of such jumping sticks, the
individual manipulates the stick by placing the feet on the foot
engageable means and grasping the hand graspable means in one or
both hands and then jumping while maintaining the stick in a
generally vertical position. This operation requires the
development of certain skills in order to keep the stick upright
while jumping progresses.
A jumping stick of the nature described above is, principally, an
amusement device but can also be considered a device for exercising
and a device from which certain mechanical skills are developed.
The present invention proposes to construct a jumping stick
arrangement in such a manner that it not only fulfills the
requirements of amusement and skill development and exercise but
also gives the jumping stick arrangement the characteristics of a
game.
The principal object of the present invention is the construction
of a jumping stick arrangement which will permit the use thereof by
two persons.
Another object of the present invention is the provision of a
jumping stick arrangement so devised and constructed as to give the
jumping stick arrangement game characteristics.
Still another object of this invention is the provision of a
jumping stick arrangement which requires the cooperative effort of
two persons to maintain the jumping stick arrangement in
operation.
Still another object of the present invention is the provision of
dual jumping stick arrangement which is relatively inexpensive to
construct.
The foregoing objects as well as other objects and advantages of
the present invention will become more apparent upon reference to
the following detailed specification taken in connection with the
accompanying drawings, in which:
FIG. 1 is a perspective view showing a dual jumping stick
constructed according to the present invention.
FIG. 2 is a fragmentary elevational view showing a modification of
the jumping stick arrangement according to the present invention in
which one stick is pivotally connected to the other.
BRIEF SUMMARY OF THE INVENTION:
According to the present invention, two jumping sticks are arranged
in parallel spaced relation and frame means are provided extending
laterally between the sticks and interconnecting the sticks for
movement in unison so that two individuals, one operating each
stick, must coordinate their individual efforts in order to
maintain the stick in operation.
It is further proposed that the frame means be pivotally connected
to at least one of the sticks to permit the sticks to be moved
circularly about one another during operation of the stick.
DETAILED DESCRIPTION OF THE INVENTION:
Referring to the drawings somewhat more in detail, FIG. 1 shows two
jumping sticks 10, 12, each of which comprise respective upper
portions 14 and 16 and respective lower portions 18 and 20. Each
upper portion has hand graspable means 22 at the upper end and foot
engageable means 24 at or near the lower end, while each lower
portion of the respective sticks has a floor or ground engaging
member 26 which may be in the form of rubber-like cup or the like.
Springs, not shown, urge the lower portions of the sticks outwardly
in the respective upper portions to an extreme stopped position,
and the springs are so selected than an individual standing on the
foot engageable portion of the respective stick and holding the
hand graspable portion thereof can jump up and down and, by proper
manipulation of the stick, can retain the stick in a substantially
vertical position during continued jumping.
According to the present invention, the sticks 10 and 12 which are,
per se, substantially conventional, are interconnected by laterally
extending frame means which, as disclosed in FIG. 1, consists of an
upper transversely extending member 28 fixed at its opposite ends
to the upper portions of sticks 10 and 12 at points therealong
somewhat below the hand graspable means 22. The laterally extending
frame means comprise a further member 30 at the lower ends of the
upper portions 14 and 16 of the sticks 10 and 12 and fixed thereto
immediately beneath the foot engageable portions 24.
In the use of the jumping stick, two individuals can operate the
stick arrangement by properly coordinating their efforts. Further,
a single individual positioned between the individual sticks can
also use the stick arrangement according to the present invention.
When the stick is operated by two individuals, it will be evident
that the individuals must carefully coordinate their efforts to
maintain the stick in operation whereby the disclosed arrangement
provides for game possibilities in addition to exercise and
amusement and for the development of mechanical skills.
The present invention proposes to provide for rotary movement of at
least one of the individual sticks about the other and this could
be accomplished as illustrated in FIG. 2, wherein the upper and
lower frame members, indicated at 28a and 30a, respectively, have
at least their one ends secured to bracket members 32 and 34,
respectively, and which bracket members pivotally engage the upper
portion 16a of at least one of the individual sticks. The bracket
members are retained between the collars 36 fixed to the upper
portion of the respective stick and, in this manner, the sticks can
rotate relative to each other and one stick can be operated in one
place, while the other stick moves in an arc about the one stick.
Obviously, both ends of the frame members can be pivotally joined
to the respective sticks for greater freedom of movement of the
individual sticks.
While the pivotal arrangement shown in FIG. 2 is in the form of a
vertical pivot of the frame means with one of the sticks and
coinciding with the vertical axis of the respective stick, the use
of pivots disposed at different angles is not precluded.
Conceivably, the pivots could be arranged to permit at least a
certain amount of relative vertical movement of the sticks and
could likewise provide independant tilting movement of the sticks
to a certain degree. Thus, the laterally extending frame means
could, on the one hand, rigidly interconnect the upper portions of
the sticks and force these portions to move in precise unison with
one another, while on the other hand, the laterally extending frame
means could somewhat flexibly interconnect the upper portions of
the respective sticks for at least a certain amount of freedom of
movement thereof in selected directions.
Modifications may be made within the scope of the appended
claims.
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