Information
-
Patent Grant
-
6443861
-
Patent Number
6,443,861
-
Date Filed
Monday, July 10, 200024 years ago
-
Date Issued
Tuesday, September 3, 200222 years ago
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Inventors
-
-
Examiners
Agents
- Stetina Brunda Garred & Brucker
-
CPC
-
US Classifications
Field of Search
US
- 473 590
- 473 588
- 473 589
- 473 613
- 446 46
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International Classifications
-
Abstract
The present invention is a boomerang flying toy having a plurality of blade arms with airfoil-like tapered perimeter edges along their respective cut lines to give the boomerang toy improved aerodynamic performance characteristics. The blade arms extend radially outward at equal angles from a central hub, where they are coupled together by interlocking fastener plates or self-adhesive decals affixed to the top and bottom surfaces at the junction of the blade arms. The top and bottom surfaces have optically perceived indicia to increase the toy's appearance and can be used to display a wide range of information including graphics, logos, advertisement, sales, and promotional information. An additional flying ring toy is die cut at the same time as the boomerang with only two additional circular cuts. The flying ring toy has the same enhanced flight performance and optically perceived indicia. A method of making the boomerang and flying ring toys in combination is by die cutting a sheet of thin, lightweight planar material comprising a foam center sandwiched between top and bottom opposed parallel surfaces of paperboard stock.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
(Not Applicable)
STATEMENT RE: FEDERALLY SPONSORED RESEARCH/DEVELOPMENT
(Not Applicable)
1. Field of the Invention
The present invention relates generally to flying toys and more particularly to boomerangs and flying ring toys adapted to be thrown by a user and methods of making such toys.
2. Background of the Invention
Boomerang type hand-thrown flying devices designed for purposes of sport and hunting originated in the early aboriginal days when such devices were used as weapons for fighting and hunting. When thrown properly by the user the boomerang would fly in a circle, spinning rapidly and return to the thrower if it missed its target. These early boomerangs were predominantly v-shaped and made of heavy wood with sharpened edges in order to disable a target when struck. The design made catching such devices upon their return inherently dangerous, so the thrower would generally let the boomerang hit the ground near their feet.
More recently many hand-launched boomerang type toys have been designed for purposes of entertainment and competition. Flying toys have been designed and improved upon over the years, with improved return flight performance and the ability to be safely caught by the thrower upon return. Many of these devices have multiple blades extending from a central hub, and are constructed of light woods, rigid plastic material, and other lightweight materials to improve flight characteristics such as lift, flight distance and return flight. Some devices are made with a rigid metal core covered with soft rubber material to allow the thrower to safely catch them on their return flight.
Other related flying toys have been developed such as the Aerobie, the Frisbee, and flying ring type toys. Unlike boomerangs, which generally travel in a circular path parallel to the ground, these devices are either thrown from person to person in a horizontal line, or thrown upwardly at an angle and they slide back down to the original thrower. To improve their flight performance characteristics, some of the boomerang and flying ring or disc toys have aerodynamic features, such as lifting surfaces, arms that bend upwards as they extend from a central hub, airfoil features at the ends of the arms, and portions of convex or concave surfaces. Making such devices, however, has proved challenging because enhancing flying toys with such aerodynamic features requires a plurality of steps to manufacture the device, thereby increasing their complexity and cost. The end users of such devices, in addition to having to assemble the parts with medium to high degrees of precision, may have to adjust the parts by bending the arms to optimum angles or aerodynamic shapes in order for the flying toys to exhibit certain flight characteristics, such as return flight. This process can be very frustrating to the users, especially when the users are children, who very quickly lose interest when the toys do not perform as they are shown to perform in commercials and other advertisements.
One of the difficulties encountered by manufacturers of flying toys is that a lot of material is wasted due to the design of blade arms or circular discs of rather large radii, which are unitary pieces cut or formed from large standard size sheets of material such as plastic or lightweight wood. Additionally, the volume required for shipping and in-store display of such devices has traditionally been excessive due to their size and fragility.
Accordingly, there is a substantial need in the art for improved flying toys and methods for making the same to overcome the problems noted above, and which improve “off the shelf” flight characteristics, improve safe use, can be inexpensively made with little or no wasted material, and can be shipped and displayed at minimal cost.
SUMMARY OF THE INVENTION
The present invention specifically addresses and alleviates the above mentioned deficiencies associated with the prior art. In this regard, the present invention comprises improved boomerang and flying ring toys and methods of making such toys.
The boomerang flying toy has a plurality of blade arms with tapered perimeter edges along their respective cut lines, which act like airfoils to give the boomerang flying toy improved aerodynamic performance characteristics. The blade arms extend radially outward at equal angles from a central hub portion, where they are held together by interlocking fastener plates or self-adhesive decals affixed to the top and bottom surfaces at the junction of the blade arms. The top and bottom surfaces have optically perceived indicia on them to increase the toy's appearance and can be used to display a wide range of information including graphics, logos, advertisement, sales, and promotional information.
Another embodiment of the present invention is a flying ring toy with airfoil-like tapered perimeter edges for improved flight performance made by die cutting two circles of varying radii, which circumscribe the blade arms of the boomerang type flying toy. In essence this flying ring is a bonus toy, which adds virtually no additional cost in the manufacturing of the boomerang flying toy. Additionally, the flying ring toy requires no assembly by the user and has optically perceived indicia on the top and bottom surfaces.
Another embodiment of the present invention is a method of making the boomerang and flying ring toys in combination by die cutting a sheet of thin, lightweight planar material comprising a foam center sandwiched between top and bottom opposed parallel surfaces of paperboard stock.
It is therefore an object of the present invention to provide a flying toy that is simple and inexpensive to manufacture, package, ship, and display.
It is yet another object of the present invention to provide a safe, fun, and easy-to-use flying toy that is easily assembled and requires no testing or manipulation of its parts to perform as intended with enhanced flight performance characteristics, such as return flight.
It is a further object of the present invention to have optically perceived indicia on the top and bottom surfaces of the flying toys, which can readily be used for advertisement or promotional information. The optically perceived indicia can be spin indicia that generates an image when the flying toy is spinning through the air.
It is a further object of the present invention to provide a method for manufacturing a flying toy by simply die cutting the flying toy from a sheet of planar material. According to another aspect of the present invention, an additional flying ring toy is provided with virtually no additional cost to manufacture by merely making two additional circular die cuts.
Other features and advantages of the invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, various features of embodiments of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
These as well as other features of the present invention will become more apparent upon reference to the accompanying drawings wherein like numerals designate corresponding parts in the several figures.
FIG. 1
is a perspective view of the boomerang toy.
FIG. 2
is a perspective view of the flying ring toy.
FIG. 3
is a plan view of the boomerang toy and flying ring toy in the pre-assembled state.
FIG. 4
is an exploded perspective view of the boomerang with one blade arm and two self-adhesive decals disassembled therefrom.
FIG. 5
is a cross-sectional view of a blade arm and the flying ring along section lines A—A, and B—B, respectively.
FIG. 6
is a plan view of a preformed 4′×8′ sheet of planar material.
FIG. 7
is an exploded perspective view of the boomerang toy with fastener plates disassembled therefrom.
FIG. 8
is an enlarged detail plan view of a fastener plate barbed post.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The following detailed description and accompanying drawings are provided for purposes of illustrating and describing presently preferred embodiments of the invention and are not intended to limit the scope of the invention in any way. It will be recognized that further embodiments of the invention may be used.
Referring now to the drawings wherein
FIG. 1
shows a perspective view of the boomerang toy
10
, shown having four approximately equal length blade arms
20
die cut from a thin, lightweight sheet of planar material
12
having a foam center
14
sandwiched between a top and a bottom opposed parallel surface
16
and
18
respectively, made of paperboard stock. The blade arms
20
have airfoil-like tapered perimeter edges
30
formed by the die cut blades
46
leaving the top opposed parallel surface
16
permanently compressed to a position closer to the bottom opposed parallel surface
18
, along die cut lines
28
. The tapered edges
30
, as can more readily be seen in
FIG. 5
, act as airfoils to enhance flight performance characteristics, such as return flight.
The blade arms
20
are coupled together with a selfadhesive decal
34
affixed to the top opposed parallel surface
16
at a central hub portion
32
, which is defined by the junction of the blade arm proximal ends
22
. The blade arms
20
extend radially outward from the central hub portion
32
to their respective blade arm distal ends
26
at equal angular spacing. As shown in
FIG. 1
, the particular embodiment of the boomerang toy has blade arm distal ends
26
, which are generally circular curves. Both the top and bottom opposed parallel surfaces
16
and
18
, respectively, can have optically perceived indicia
36
thereon as shown in the preassembled view of FIG.
3
.
FIG. 2
is a perspective view of the flying ring toy
40
, which is made by die cutting an inner radius
42
, and an outer radius
44
, both circumscribing the plurality of blade arms
20
, which are die cut in a side-by-side lengthwise placement, as more readily seen in FIG.
3
. The flying ring toy
40
also has airfoil-like tapered edges
30
along the die cut lines
28
of both the inner and outer radius perimeters
42
and
44
, respectively. The tapered edges act like airfoils to enhance the flight characteristics of the flying ring by making use of the air currents through which it moves. The tapered perimeter edges
42
and
44
, are formed by the die cut blades
46
during the die cutting process as discussed above for the boomerang toy blade arms
20
. Both the top opposed parallel surface
16
, and bottom opposed parallel surface
18
, can have optically perceived indicia
36
on their surfaces as shown in the preassembled view depicted in FIG.
3
.
FIG. 3
is a plan view looking down at the top opposed parallel surface
16
of both the boomerang and flying ring toys
10
and
40
, respectively, in their pre-assembled state, as they would look just after being die cut. The four blade arms
20
of the boomerang toy are shown in a lengthwise side-by-side placement and circumscribed by the inner and outer radius perimeters
42
and
44
, respectively, of the flying ring toy
40
. This configuration minimizes both the amount of cuts to be made and the amount of excess material wasted, which decreases the cost to manufacture the flying toys.
The blade arms
20
are shown with tongue and groove interlocks
24
at their proximal ends
22
for connecting one blade arm together with adjacent blade arms such that the tongue of one blade arm snap-fits into the groove of the adjacent blade arm to maintain the blade arms together at the central hub portion
32
. The tongue and groove interlocks
24
facilitate affixing the self-adhesive decal
34
to the central hub portion and provide increased strength and stability to the boomerang toy
10
. The blade arms
20
and flying ring toy
40
are releasably held together after die cutting by small connection points
38
spaced apart along the die cut lines
28
, which are left uncut during die cutting. These connection points facilitate the packaging, shipping, and display of the flying toys and are easily separated by applying opposing pressure to the top and bottom opposed parallel surfaces
16
and
18
, respectively, at the small points of connection
38
, or by simply cutting the small connection points
38
with a pocket knife or exacto-blade. The blade arms and inner and outer radii die cut lines
28
are die cut with sufficient pressure to permanently displace the top opposed parallel surface
16
to a position closer to the bottom opposed parallel surface
18
along the die cut lines, which creates tapered edges
30
that function as airfoils to enhance flight performance characteristics of the flying toys.
FIG. 3
further shows optically perceived indicia
36
on the top opposed parallel surface
16
of the boomerang and flying ring toys. The bottom opposed parallel surface
18
can also have optically perceived indicia
36
thereon. The optically perceived indicia can be used to display a wide range of information including graphics, logos, advertisement, sales, and promotional information.
FIG. 4
shows an exploded perspective view of the boomerang flying toy
10
with one blade arm
20
and two self-adhesive decals
34
disassembled therefrom. Each blade arm
20
has a tongue that snap-fits into the groove of the adjacent blade arm
20
to maintain the plurality of blade arms together in a precise formation to facilitate affixing the self-adhesive decal
34
on the top or bottom surface
16
or
18
, respectively, at the central hub portion
32
. The tongue and groove interlocks
24
also increase the stability of the assembly of blade arms. The embodiment shown in
FIG. 4
has two self-adhesive decals
34
, one for affixing to the top opposed parallel surface
16
and another for affixing to the bottom opposed parallel surface
18
. Also shown are the airfoil-like tapered perimeter edges
30
of the blade arms
20
along the die cut lines
28
, which enhance the flight characteristics of the boomerang toy.
FIG. 5
is a cross-sectional view of a blade arm
20
taken along line A—A in
FIG. 1
, and the flying ring
40
taken along line B—B in FIG.
2
. The flying toys are made from a sheet of thin, lightweight planar material
12
, which has a foam center
14
sandwiched between top and bottom opposed parallel surfaces,
16
and
18
respectively, of paperboard stock. The tapered perimeter edges
30
are created during the die cut process by the die cut blades
46
applying sufficient force to the thin, lightweight sheet of planar material
12
, such that the top opposed parallel surface
16
near the die cut edge is permanently compressed to a position closer to the bottom opposed parallel surface
18
along the die cut lines
28
. The tapered edges give the flying toys enhanced flight performance without adding any additional structure and without requiring additional forming steps such as hot pressing.
FIG. 6
is a plan view of a 4′×8′ standard dimensioned preformed sheet of thin, lightweight planar material
12
showing the layout of the die cut locations for the die cutting of the boomerang
10
and flying ring toy
40
. With the outer radius perimeter
44
of the flying ring toy
40
shown in
FIG. 3
having a diameter of one foot or less, a single 4′×8′ sheet of material will yield 32 boomerangs and 32 flying ring toys, with minimal wasted material. Additionally, the excess material outside the outer radius perimeter automatically breaks-away from the flying toys, leaving the plurality of blade arms of one boomerang toy and one flying ring toy detachably coupled together at the small connection points, and ready to be packaged and shipped without further preparation.
FIG. 7
shows an exploded perspective view of the boomerang toy
10
with interlocking fastener plates
50
disassembled therefrom. The plurality of blade arms
20
are coupled together at a central hub portion by a first fastener plate
52
, which has a plurality of barbed posts
54
extending from a surface of the first fastener plate
52
. The barbed posts
54
extend through corresponding blade arm apertures
60
, and are locked into receiving apertures
58
in the second fastener plate
56
by the barbs as detailed in FIG.
8
.
The number of barbed posts
54
typically corresponds to the number of blade arms
20
, so that each blade arm will have a barbed post extending through it to increase the strength of the assembly. As shown in
FIG. 8
, the barbed posts
54
are long enough to extend through the blade arms and the receiving apertures
58
in the second fastener plate
56
, so that the barb slightly protrudes past the second fastener plate
56
.
Having thus described the structural attributes of the boomerang and flying ring toys, the preferred methods of making the same will now be discussed. The preferred method of making the boomerang and flying ring toy consists of die cutting a plurality of blade arms arranged in a lengthwise side-by-side configuration, and two radii of varying diameter, which circumscribe the blade arms to form the flying ring toy. From one die cut, the preferred method yields the blade arm components of the boomerang toy and a bonus flying ring toy, with minimal amounts of unused material, and both having airfoil tapered edges without requiring additional steps such as hot pressing. Additionally, the top and bottom opposing surfaces can have optically perceived indicia thereon for displaying graphics, logos, advertisements, sales, and promotional information.
The method comprises the steps of preselecting a sheet of thin, lightweight planar material
12
having a synthetic resin closed cell foam core
14
sandwiched between top
16
and bottom
18
opposed parallel surfaces of paperboard stock. The top
16
and bottom
18
opposed parallel surfaces can have optically perceived indicia
36
on them for displaying graphics, logos, advertisements, sales, and promotional information.
A die cut layout is designed comprising a plurality of substantially equal length blade arms configured in a lengthwise side-by-side placement, with the inner and outer radii of the flying ring toy circumscribing the plurality of blade arms. With an outer radius diameter of approximately 12 inches, a single sheet of material with standard 4′×8′ dimensions will yield 32 boomerangs and 32 flying ring toys. Although the sheet dimensions as shown in
FIG. 6
are 4′ wide by 8′ long, it will be understood that other dimension sheets can readily be used with the same efficient use of materials by designing a layout for the die cut that varies proportionately with the sheet size of material used.
After the layout is designed, the planar sheet is placed in operative arrangement with a die cutting tool, wherein sufficient force is applied to the die cutting blades to form airfoil-like tapered edges by the top opposed parallel surface being permanently compressed to a position closer to the bottom opposed parallel surface along the die cut lines. The airfoil-like tapered edges give the flying toys enhanced flight performance without any additional parts and without requiring any additional forming steps such as hot pressing. Small points of connection spaced apart along the die cut lines are left uncut to releasably maintain the plurality of blade arms and flying ring toy together. The boomerang blade arms and flying ring toy are easily separated from each other by applying opposing pressure to the components at the small connection points, or by simply cutting the small connection points with a pocket knife, exacto-blade or other similar instrument. The design, layout, and releasably coupling together of the blade arms and flying ring allow the flying toys to be simply and inexpensively manufactured, packaged, shipped, and displayed by minimizing the amount of die cuts required, minimizing the size of the item to be packaged and shipped, and minimizing the amount of unused material.
Once detached, the flying ring toy is ready for use, without any further assembly. The assembly of the blade arms of the boomerang flying toy requires the blade arms to be placed together at their proximal ends by snap-fitting the interlocking tongue and groove of each blade arm with the adjacent blade arms' corresponding tongue or groove and then coupling them together at the central hub portion by either affixing self-adhesive decals to the top and bottom opposed parallel surfaces, or by interlocking a first fastener plate having a plurality of barbed posts extending from one surface, through apertures in the blade arms, and locking the barbed posts into receiving apertures in a second fastener plate. The boomerang flying toy is then ready for use without any further assembly or fine tuning.
While the description above refers to particular embodiments of the present invention, it will be understood that many modifications may be made without departing from the spirit thereof. The accompanying claims are intended to cover such modifications as would fall within the true scope and spirit of the present invention.
The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive; the scope of the invention being indicated by the appended claims, rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims
- 1. A flying toy comprising:a plurality of approximately equal length blade arms die cut from a thin, lightweight planar material of substantially uniform thickness between top and bottom opposed parallel surfaces, the blade arms having tapered perimeter edges along die cut lines; coupling means for affixing the plurality of blade arms together at their proximal ends forming a central hub portion; the blade arms extending radially outward from the central hub portion to their respective blade arm distal ends at approximately equal angular spacing; and each blade arm having a tongue and a groove at its proximal end to interlock each blade arm together with the adjacent blade arms to form the central hub portion.
- 2. The flying toy of claim 1 wherein the plurality of blade arms comprises from 3 to 6 blade arms.
- 3. The flying toy of claim 1 wherein the coupling means comprises:a first and a second fastener plate; the first fastener plate having a plurality of barbed posts, corresponding in number to the number of blade arms, and extending from a surface of the first fastener plate and through apertures in the plurality of blade arms; the second fastener plate having receiving apertures for receiving the plurality of barbed posts.
- 4. The flying toy of claim 1 wherein the coupling means comprises two self-adhesive decals, one self-adhesive decal affixed to the top opposed parallel surface and the other affixed to the bottom opposed parallel surface.
- 5. The flying toy of claim 1 wherein the distal ends of the blade arms are generally circular curves.
- 6. The flying toy of claim 1 wherein the thin, lightweight planar material is a synthetic resin closed cell foam material.
- 7. The flying toy of claim 1 wherein the thin, lightweight planar material comprises a synthetic resin closed cell foam center sandwiched between top and bottom opposed parallel surfaces of paperboard stock.
- 8. The flying toy of claim 1 wherein at least a portion of at least one of the opposed parallel surfaces has optically perceived indicia thereon.
- 9. The flying toy of claim 1 wherein at least a portion of both opposed parallel surfaces has optically perceived indicia thereon.
- 10. A flying toy comprising:a plurality of blade arms, the blade arms having tapered perimeter edges along die cut lines; a first and a second fastener plate for affixing the plurality of blade arms together at their proximal ends forming a central hub center, wherein the first fastener plate has a plurality of barbed posts, corresponding in number of blade arms, and extending from a surface of the first fastener plate and through apertures in the plurality of blade arms, and the second fastener plate has receiving apertures for receiving the plurality of barbed posts; and the blade arms extending radially outward from the central hub portion to their respective blade arm distal ends at approximately equal angular spacing.
- 11. A flying toy comprising a plurality of approximately equal length blade arms, wherein proximal ends of the blade arms are snap-fitted with each other to form a central hub portion, and the blade arms extend radially outward from the central hub portion to their respective blade arm distal ends at approximately equal angular spacing.
- 12. The flying toy of claim 11 wherein the proximal end of each blade arm has a tongue and a groove for interlocking each blade arm.
- 13. The flying toy of claim 11 further comprising coupling means to affix the proximal ends of the blade arms at the central hub portion.
- 14. The flying toy of claim 13, wherein the coupling means comprises:a first and a second fastener plate; the first fastener plate having a plurality of barbed posts, corresponding in number to the number of blade arms, and extending from a surface of the first fastener plate and through apertures in the plurality of blade arms; and the second fastener plate having receiving apertures for receiving the plurality of barbed posts.
- 15. The flying toy of claim 13, wherein the coupling means comprises two self-adhesive decals affixed to two opposed surfaces of the central hub portion.
US Referenced Citations (6)