U.S. patent number 3,850,428 [Application Number 05/306,874] was granted by the patent office on 1974-11-26 for gymnastic apparatus.
This patent grant is currently assigned to Porter Equipment Company. Invention is credited to Richard H. Zuber.
United States Patent |
3,850,428 |
Zuber |
November 26, 1974 |
GYMNASTIC APPARATUS
Abstract
A gymnastic apparatus comprising a main section and a plurality
of wing sections. The main section has a padded base of rectangular
configuration having four vertical upstanding corner posts
connected by horizontal beams to form a quadratic frame. A number
of vertical and horizontal exercise devices are supported by the
quadratic frame. The base is mounted upon wheels to facilitate
movement, and the wheels are retractable to allow the apparatus to
rest upon a plurality of support legs. Pivotally mounted on each of
the four vertical posts is a wing section of rectangular shape,
each wing section also supporting a number of exercise devices.
Each wing section is movable between a folded position nested
alongside the sides of the main section, and a number of open
positions extending outwardly from the main section. Adjacent wing
sections are connected together by horizontal bars from which
hanging type exercise devices are suspended. Additional exercise
devices can be supported at one end by the main or wing sections
with the other ends extending outwardly therefrom, and furthermore
the unit is so designed that such additional exercise devices can
be attached spanning the wing sections when the wing sections are
in the parallel configuration.
Inventors: |
Zuber; Richard H. (Palatine,
IL) |
Assignee: |
Porter Equipment Company
(Shiller Park, IL)
|
Family
ID: |
23187250 |
Appl.
No.: |
05/306,874 |
Filed: |
November 15, 1972 |
Current U.S.
Class: |
482/36 |
Current CPC
Class: |
A63B
9/00 (20130101); A63B 2208/12 (20130101); A63B
2071/025 (20130101) |
Current International
Class: |
A63B
9/00 (20060101); A63B 71/02 (20060101); A63b
009/00 () |
Field of
Search: |
;272/58,60,61,62
;273/26A ;182/152 ;256/25 ;5/161,85 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Taylor; Joseph R.
Claims
I claim:
1. A gymnastic apparatus for supporting exercise and play devices
comprising:
a self-supporting main section having a base and first and second
substantially vertical posts attached to said base and defining
therebetween a first side of said main section,
first and second substantially vertically oriented wing sections
pivotally attached respectively to said first and second posts,
each of said wing sections being movable between a folded position
alongside said main section and an extended position extending
outwardly of said main section, and
connector means attachable to said wing sections at points spaced
from said main section when said wing sections are in said extended
position to connect said wing sections together, said connector
means comprising a beam attached to the upper portions of said wing
sections whereby hanging exercise and play devices may be suspended
therefrom.
2. The gymnastic apparatus of claim 1 further comprising extension
means attachable to each said wing section and to said beam for
mounting said beam a distance above said wing sections.
3. The gymnastic apparatus of claim 1 wherein each said wing
section terminates in a free end having an end post, and wherein
said beam is attachable to said end posts.
4. The gymnastic apparatus of claim 1 wherein said beam is of
length no greater than the length of said first side whereby said
beam can be stored upon said base.
5. A gymnastic apparatus for supporting exercise and play devices
comprising:
a self-supporting main section having a rectangular base and first,
second, third and fourth substantially vertical posts attached to
said base, said first and second posts and said third and fourth
posts defining therebetween respectively first and second sides of
said main section, said second and third posts and said fourth and
first posts defining therebetween respectively first and second
ends of said main section, said first and second ends being of
lesser length than said first and second sides,
a first exercise or play device supported by said main section,
first and second substantially vertically oriented wing sections
pivotally attached respectively to said first and second posts,
each of said first and second wing sections being movable between a
folded position alongside said main section and an extended
position extending outwardly from said main section, the length of
each of said first and second wing sections being greater than one
half of the length of said first side, and not greater than the
entire length of said first side, said first wing section being
attached to said first post by first hinge means so oriented with
respect to said first post as to allow said first wing section to
fold flush against and substantially parallel to said first side,
said second wing section being attached to said second post by
second hinge means so oriented with respect to said second post as
to allow said second wing section to fold into overlapping
relationship with said first wing section and flush against and
substantially parallel to said first wing section,
third and fourth substantially vertically oriented wing section
pivotally attached respectively to said third and fourth posts,
each of said third and fourth wing sections being movable between a
folded position alongside said main section, the length of each of
said third and fourth wing sections being greater than one half of
the length of said second side and not greater than the entire
length of said second side, said third wing section being attached
to said third post by said third hinge means so oriented with
respect to said third post as to allow said third wing section to
fold flush against and substantially parallel to said second side,
said fourth wing section being attached to said fourth post by
fourth hinge means so oriented with respect to said fourth post as
to allow said fourth wing section to fold and to overlapping
relationship and flush against and substantially parallel to said
third wing section, and
a second exercise or play device supported by said wing
sections.
6. The gymnastic apparatus of claim 5 further comprising
retractable wheel means mounted on said main section and fixed leg
means mounted on each of said wing sections, said wheel means being
movable between an operating position extending downwardly a
distance greater than said leg means and a retracted position
extending downwardly a distance no greater than said leg means, and
means for moving said wheel means between said operating and said
retracted positions.
7. The gymnastic apparatus of claim 6 wherein said wheel means
comprises four wheels, one said wheel being positioned at each of
the four corners of said main section, each said wheel being
mounted upon a wheel support rod axially slidably attached to a
respective one of said posts and substantially parallel thereto,
and said means for moving said wheel means comprises a plurality of
handles, each said handle being pivotally attached to a respective
said post and beding operatively connected to a respective said
wheel support rod, whereby arcuate movement of said handle causes
axial movement of said wheel support rod to retract or extend said
wheel.
8. The gymnastic apparatus of claim 7 wherein each said hinge means
comprises upper and lower pairs of hinges, each said lower pair of
hinges pivotally engaging a respective said wheel support rod,
whereby said wheel support rod also fuctions as a hinge pin.
9. The gymnastic apparatus of claim 5 further comprisding first
connector means for connecting together a first adjacent pair of
said wing sections, said first connector means being attachable to
the upper portion of each of said first pair of adjacent wing
sections at points spaced from said main section.
10. The gymnastic apparatus of claim 9 further comprising second
connector means for attaching together a second pair of adjacent of
said wing sections, said connector means being attachable to the
upper portion of each of said second pair of adjacent wing sections
at points spaced from said main section.
11. The gymnastic apparatus of claim 10 wherein the length of each
of said connector means is no greater than the length of said
sides, and further comprising a floor attached to said base,
whereby said connector means can be stored upon said floor.
12. The gymnastic apparatus of claim 10 wherein each of said wing
sections is of rectangular shape of dimensions substantially equal
to the dimensions of said sides.
Description
BACKGROUND OF THE INVENTION
This invention pertains generally to the field of exercise devices
and particularly to exercise and play devices for pre-school and
elementary school children.
There exist in the prior art great numbers of play and exercise
apparatus for children which incorporate virtually every type of
swinging, hanging, crawl-through balancing and climbing device
known to be of interest to children. Usually, the apparatus are
large and non-collapsible, and are fixed in place on a school
playground. Those few that can be installed indoors are difficult
to assemble and disassemble and cannot be considered portable. Some
foldable or collapsible devices have been developed in recent
years, but theyse have not been very versatile, and thus their
attractiveness to children has quickly diminished.
SUMMARY OF THE INVENTION
This invention provides collapsible exercise and play apparatus
that is easily assembled, disassembled, moved, transported, and
stored. The apparatus is extremely versatile. It can be assembled
in a number of configurations, and can accommodate a great number
of exercise and play devices of all types. The inventive apparatus
consists of a main section and a plurality of wing sections
pivotally attached on the main section. The main section is a
framework defining a quadratic shape having a frontal configuration
of such size as to easily fit through doors. Each of the corner
posts of the main section supports a generally vertically oriented
pivotable wing section of rectangular shape. Various hanging,
swinging and crawl-through exercise and play devices of known types
are supported by the main section and the wing sections. The main
section is mounted upon retractable wheels which are extended to
allow the apparatus to be moved, and are retracted to allow the
apparatus to rest firmly on fixed legs. The main section has a
padded floor for safety and use in tumbling.
The four wing sections are pivotally attached to the vertical
corner posts of the main section. Each wing section is movable
between a folded position nested alongside the main section, and a
number of open positions extending outwardly from the main section.
Each wing section comprises a vertically oriented rectangular frame
which supports hanging and crawl-through exercise devices. A number
of legs having non-skid feet extend downwardly from the wing
sections. Adjacent wing sections can be attached together at the
top by means of horizontal connector bars from which hanging
devices such as rings and ropes can be suspended. In addition, both
the main section and the wing sections can support exercise devices
internal or external apparatus such as balance bars, sliding
boards, or the like.
All of the components of the apparatus, such as the removable
exercise devices, the connector bars, and the appurtenant devices
such as the balance beams, can be stored on the floor of the main
section. Auxiliary equipment such as mats and balls can also be
stored there. Therefore, when the apparatus is disassembled, the
wing sections folded, it becomes a compact unit, easily stored and
transported. Also, while it covers a rather large floor area when
in operating configuration, when in its storage configuration it
uses a minimal amount of floor area.
The gymnastic apparatus of this invention is easily moved into
place and assembled by one individual. It is self-supporting and
rigid, and can be used outside or inside, in gymnasiums or all
purpose rooms, for example.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the gymnastic apparatus of this
invention showing the wing sections disposed in a first
arrangement;
FIG. 2 is a top plan view of the apparatus of FIG. 1, illustrating
the various positions to which the wing sections can be moved;
FIG. 3 is a side view of the gymnastic apparatus of the invention
showing a number of the exercise device forms that can be
incorporated into the structure of the wing sections;
FIG. 4 is an end view of the device of FIG. 3 showing examples of
the exercise devices that can be incorporated into the end
structure of the main section;
FIG. 5 is a top view of the invention, illustrating in detail a
preferred manner of pivotally mounting and folding the wing
sections;
FIG. 6 is an exploded view of the connector beam structure for
attaching together adjacent wing sections;
FIG. 7 is a side view of the connector beam structure of FIG.
6;
FIG. 8 is an elevational view taken through the line 8--8 of FIG.
7;
FIG. 9 is a top view, partially in section, of the wheel mounting
and corner post structure of the inventive apparatus;
FIG. 10 is a side view taken along line 10--10 of FIG. 9; and
FIG. 11 is a side view, partially in section, of the wing section
support legs.
DESCRIPTION OF A PREFERRED EMBODIMENT
Looking now particularly to FIGS. 1 and 2, the gymnastic apparatus
of this invention comprises a main section 10 and a plurality of
wing sections 12, 14, 16 and 18. Each of these sections comprises a
framework of preferably tubular construction suitably contoured and
welded together at the joints. Main section 10 is a quadratic
box-like framework, having a rectangular base comprising a pair of
bottom side beams 17 and 18, and a pair of bottom end beams 19 and
20. A floor 21, of vinyl covered foam or the like fastened to a
plywood backing, is attached to beams 17, 18, 19 and 20. Floor 21
provides an element of protection for a child falling from above,
and can also be used for tumbling. In addition, floor 21 provides a
place for storing the removable components of the apparatus, as
well as auxiliary equipment, when the apparatus is in the collapsed
configuration.
Four corner posts 23, 24, 25 and 26 are attached at the corners to
members 17, 18, 19 and 20 to extend upwardly therefrom. To complete
the quadratic box-like framework of main section 10, a pair of top
side beams 26 and 27, and a pair of top end beams 28 and 29, and
attached to corner posts 23, 24, 25 and 26. To add strength and
rigidity to the structure, and to provide support for the vertical
and horizontal exercise devices to be described below, additional
tubular members such as center posts 30 and 31, center top beam 32,
and top rungs 33, 34, 35 and 36 are attached to the basic
framework.
Main section 10 is provided with wheels at all four corners. The
wheel structure of corner post 26 is shown in detail in FIGS. 9 and
10, and the structure at posts 24, 25, and 23 is identical. A pair
of wheel support brackets 40a and 41a are fixedly attached to each
side of corner post 26. Brackets 40a and 41a are of tubular
construction and a wheel support rod 42 is slidably mounted
therein. A pad 44 is attached to the lower end of wheel support rod
42, and a U-shaped axle bracket 45 is attached to pad 44. An axle
46 is mounted on bracket 45, and a wheel 47 is rotatably carried by
axle 46. Wheel 47 is preferably of material that will not mar the
surfaces of wooden floors such as those used in gymnasiums. Wheel
support rod 42 terminates at its upper end in a clevis 50 having a
pin 51. Pivotally attached to corner post 26 by means of a bracket
54 and pin 55 is a wheel control handle 56. Mounted on handle 56,
at a point spaced from pivot pin 55, is another pivot pin 58. A
wheel lift beam 59 is pivotally attached at one end to wheel
support rod 42 by means of pin 51 and at the other end to handle 56
by means of pin 58. Rotative movement of handle 56 about pivot pin
55 thus causes compound movement of beam 59 and axial movement of
wheel support rod 42. When handle 56 is in its upper position, as
shown in FIG. 10, wheel 47 is in its extended position. The load
carried by wheel 47 is passed to main section 10 through pin 55.
The extended position of wheel 47 is used when the apparatus is
being moved. Rotation of handle 56 through the arc indicated in
FIG. 10 to its lower position causes wheel 47 to move to a
retracted position, and the main section 10 is lowered so that the
apparatus rests upon feet mounted on the wing sections, as
described below. Means are provided for securing handle 56 in its
upper position in the form of a locking sleeve 60 having a flexible
neck 61 attached to corner post 26. Sleeve 60 is slipped over the
top of handle 56 to hold handle 56 in the upper position, and is
pulled upwardly to disengage from handle 56 to allow handle 56 to
be moved to its lower position. Conventional wheel braking means,
not shown, can be incorporated into the wheel structure, if
desired.
A first group of exercise and play devices can be incorporated into
the sides and ends of main section 10. For clarity, these devices
have not been illustrated, but they could be like those shown in
FIGS. 3 and 4. Similarly, devices such as ladder bars can be
incorporated into the top of main section 10. It is desirable to
allow at least some open areas in the sides and the ends of the
main section, however, to allow access to the interior to
facilitate storage of parts of the apparatus and auxiliary devices
therein.
Attached to main section 10 are four wing sections 12, 14, 16 and
18. Wing section 14 will be described in detail, the other wing
sections being identical except, perhaps, for the particular
horizontal and vertical exercise devices or shapes that are
incorporated therein. Like structure of the other wing sections 12,
16 and 18 is designated with identical numbers having a letter
suffix. Looking to FIG. 1, wing section 14 comprises a wing base
beam 64, a wing top beam 65, and a pair of wing end posts 66 and
67. Wing beams 65 and wing posts 66 and 67 are contoured as
necessary at their points of joinder and are rigidly attached
together to form a rectangular framework in a vertical plane. The
top of wing post 66, however, is not closed, for reasons described
below. A vertical center post 69 is attached between wing beams 64
and 65 to add strength and to support vertical exercises
devices.
Each of the wing sections 12, 14, 16, and 18 is attached to main
section 10 by a pivot joint arranged in such a fashion as to allow
the wing sections to be folded flush, or nested, against the side
of the main section 10. Again, only the pivot connection between
wing section 14 and main section 10 will be described, it being
understood that the other wing sections 12, 16 and 18 are attached
to the main section 10 in an identical manner. Like elements
associated with wing sections 12, 16 and 18 are designated with
identical numerals having a letter suffix.
Wing section 14 is pivotally attached to main section 10 by two
hinge connections. As best shown in FIGS. 1 and 5, the upper hinge
connection 72 comprises an upper main hinge 73 attached to the side
of the corner post 23, an upper wing hinge 74 attached to the side
of wing post 67, and an upper hinge pin 75. Lower hinge connection
77 is integrated into the structure which supports the wheels 47.
Lower hinge connection 77 comprises a lower wing hinge 78 attached
to the side of wing post 67 and so positioned along the length of
the post 67 as to be interposed between wheel support rod brackets
40 and 41, which also function as hinges. Lower wing hinge 78 has a
center opening 79 through which wheel support rod 42 passes, wheel
support rod 42 acting also as the lower hinge pin.
In order to facilitate nesting of two wing sections on each side of
the main section when the wing sections are folded, the hinges of
each wing section extend outwardly at an angle from the posts upon
which they are mounted. For example, looking to wing sections 12 in
FIG. 5, main hinge 73a extends outwardly from post 26 at an angle
outwardly to the plane of the end of main section 10. Its
cooperating wing hinge 74a extends outwardly from post 67a at an
angle outwardly to the plane of wing section 12. Thus, when wing
section 12 is folded, it lies parallel to the side of main section
10. Main hinge 73 of wing section 14 is at an angle inwardly of the
plane of the end of main section 10, and wing hinge 74 is at an
angle inwardly to the plane of wing section 14. Thus, when wing
section 14 is folded parallel to the side of main section 10, it is
spaced therefrom. Lower hinges 78a (wing section 12) and 78 (wing
section 14) are similarly oriented. The hinges of wing sections 16
and 18 are oriented in like manner so that these sections nest on
the opposite side of main section 10.
Each of the wing sections 12, 14, 16 and 18 is provided with a pair
of support legs. As illustrated in detail in FIG. 11, each leg 80
comprises a shoe 81 of non-marking, non-skid material, supported by
a discs 82, which is fixedly attached to a screw 83. Attached to
the underside of bottom wing beam 64, in alignment with wing post
69, is a leg member 84, to which is fixed an internally threaded
nut 85, for example, by means of a pair of pins 86 and 87. Bottom
beam 64 is provided with a pair of aligned openings 88 and 89 to
permit screw 83 to extend upwardly therethrough. Thereby, the
length of leg 80 can be adjusted, to accommodate uneven floors, for
example. The length of each leg 80 is adjusted so that the shoes 81
are spaced from the floor when wheels 47 are extended, and firmly
in contact with the floor when wheels 47 are retracted.
Adjacent pairs of wing sections are connected together by a
connector beam 100. As shown in FIG. 1, the wing sections 12, 14,
16 and 18 are oriented parallel to the plane of the ends of main
section 10, with wing sections 12 and 14 being connected together
by a first connector beam 100, and wing sections 16 and 18
connected together by a second identical connector beam 100.
Connector beams 100 can be disposed at the same height as wing top
beams 65, or can be mounted at a height raised above wing top beams
65.
The details of the connector beam 100 are illustrated in FIGS. 6-8.
Connector beam 100 comprises a pair of connector bars 101 and 102
which are welded together at points 103. Connector mounting rods
105 and 106 are attached to bars 101 and 102 at the ends thereof.
Bars 101 and 102 are suitably drilled to receive a plurality of
suspension hooks 107 to which hanging type exercise and play
devices such as rings and ropes can be attached. Rods 105 and 106
slide into the open ends of wing corner posts 66, 66a, 66b, and
66c. The most advantageous length for connector beams 100 is a
length substantially equal to the length of main section 10. This
facilitates storage of the connector beams 100 within the framework
of the main section 10, and also allows several interesting
relationships to be formed of the main section 10 and the wing
sections 12, 14, 16 and 18. For example, looking to FIG. 2, the
wing sections 12, 14, 16 and 18 positioned as shown in the solid
lines, connector beams 100 connect together wing sections 14 and
16, and 12 and 18, respectively, providing a second configuration
substantially different from the first. This novel feature
maximizes the usefullness of the apparatus, as well as making it
more interesting for the children.
It is advantageous to have at least one of the connector beams 100
at a greater height to accommodate certain climbing and hanging
devices. This is accomplished by elevating one of the connector
beams 100 on a pair of extension means 110. Looking to FIGS. 6-8,
each extension means 110 comprises a vertical extension column 111
of tubular construction suitable for receiving in an open end one
of the connector rods 105 and 106. Attached to the lower end of
extension column 111 is an extension rod 113. A bracket 115 is
attached to the side of extension rod 111, and is connected by
means of a pin 116 to one end of a brace 117. The other end of
brace 117 is provided with a U-shaped bracket 118 having aligned
openings 119, which seats on top beam 65 of one of the wing
sections. Top beam 65 is provided with an opening 120, and a
locking pin 122 passes through openings 119 and 120 to allow
attachment and removal of the brace 117. A typical locking pin 122
has a curved handle portion 123 and a pivoted locking member 124
mounted on a pin 125 in a slot at the opposite end.
The basic structure of a preferred embodiment of the apparatus has
been described above. The basic apparatus is quite versatile, and
can be utilized to support a number of exercise and play devices of
the horizontal, vertical, hanging and inclined types. In FIG. 3,
examples of typical exercise and play devices are shown installed
on wing sectijon 14. These are by no means the only forms that can
be used. Wing section 14 has been provided with a middle horizontal
bar 130, to which have been attached a number of vertical bars 131,
132, 133, 134, 135, and 136. Arranged with the framework of bars
130-136 are a plurality of exercise devices such as for example, a
horizontal bar 137 in combination with two diagonal bars 138 and
139; a diamond arrangement of diagonal bars 140, 141, 142 and 143;
a single diagonal bar 144; a circular bar 145; staggered horizontal
bars 146, 147 supported by a vertical bar 148; and two arcuate bars
149 and 150. Shown in FIG. 4 is a ladder arrangement of a number of
horizontal bars 152. In order to illustrate the basic apparatus
clearly, the total number of exercise and play devices have not
been shown. It should be realized, however, that such devices can
be incorporated into all four wing sections, as well as the sides,
ends, and top of the main section.
As noted in FIG. 1, hanging devices such as climbing ropes 150 and
flying rings 151 can be installed on connector beams 100. Also,
additional exercise devices, such as bars and beams, can internally
be attached spanning the wing sections when the wing sections are
in the parallel configuration. External devices, such as inclined
trestle 156 (FIG. 1), can be attached to the main section or the
wing sections.
The apparatus is utilized in the following manner: In the storage
configuration, wing sections 12, 14, 16 and 18 are folded into
nested relationship with main section 10. Alll detachable and
auxiliary elements are stacked for storage upon floor 21. If
desired, wheels 47 can be retracted to engage shoes 81 with the
floor, to prevent inadvertant movement of the device. With wheels
47 in the extended position, (wheel control handle 56 in the upper
position) the apparatus is pushed to the operating location. The
narrow frontal area allows it to pass through conventional
doorways. When the apparatus is positioned in the desired location,
wing sections 12, 14, 16 and 18 are pivoted to the desired
position, and connector beams 100 are installed to attach adjacent
pairs of wing sections together. The apparatus can be used without
connecting adjacent wing sections together, however. Once the wing
sections are extended, wheels 47 are retracted by disengaging
locking sleeve 60 from handle 56, and moving handle 56 to its lower
position. This lowers the apparatus to rest upon the plurality of
shoes 81. Depending upon the amount of extension of legs 80, some
of the weight of the apparatus may be borne by the retracted wheels
47, or the entire weight borne by shoes 81. Screws 83 can be
adjusted to compensate for an uneven floor, if necessary. The
various demountable exercise devices can then be installed and the
apparatus put into use.
Upon completion of use, the events take place in reverse cycle. The
demountable devices and elements are removed and placed on floor
21. Then handle 56 is moved to its upper position and engaged by
locking sleeve 60, so that wheels 47 are extended. Wing sections
12, 14, 16 and 18 are then folded alongside main section 10. The
apparatus is then ready to be moved.
Many variations and modifications to the apparatus described above
may become apparent to those skilled in the art, and it should be
understood that the invention is not limited to the embodiment
described herein, but is limited only by the scope of the appended
claims.
* * * * *