US20020092512A1 - Toy projectile system - Google Patents
Toy projectile system Download PDFInfo
- Publication number
- US20020092512A1 US20020092512A1 US09/764,023 US76402301A US2002092512A1 US 20020092512 A1 US20020092512 A1 US 20020092512A1 US 76402301 A US76402301 A US 76402301A US 2002092512 A1 US2002092512 A1 US 2002092512A1
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- US
- United States
- Prior art keywords
- projectile
- launcher
- shaft
- opening
- load position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 210000003414 extremity Anatomy 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 229920013683 Celanese Polymers 0.000 description 1
- 229920005123 Celcon® Polymers 0.000 description 1
- 235000015842 Hesperis Nutrition 0.000 description 1
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- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B7/00—Spring guns
- F41B7/08—Toy guns, i.e. guns launching objects of the gliding type, e.g. airplanes, parachute missiles
Definitions
- This invention relates to the field of toys, and is particularly useful in connection with, but is not necessarily limited to, construction toys.
- the projectile system of the present invention in its most basic form, comprises two parts, a one-piece projectile and a one-piece launcher.
- the basic form of the invention can, of course, be presented in various forms and complexities, but always incorporating the basic component arrangement of projectile and launcher.
- the projectile element preferably is a one-piece molded plastic element having a projectile-shaped front end portion and a back end portion comprising a plurality of cantilever mounted leaf spring elements extending generally rearwardly and being capable of elastic displacement in a radially inward direction.
- a launcher element which defines a tubular passage arranged to receive at least portions of the projectile element, including the resilient leaf spring elements.
- the back portion of the tubular passage is convergently tapered in a front-to-back direction such that, when the projectile element is inserted axially into the launcher passage, the free ends of the cantilevered leaf spring elements will be engaged and radially inwardly displaced by the convergently tapered walls.
- the resiliently displaced leaf spring elements serve to urge the projectile in a launching direction.
- a retention arrangement is provided, consisting of elements on the projectile and on the launcher, which hold the projectile in its “loaded” ready-to-be-released position. When the retention elements are disengaged, the projectile is immediately ejected from the launcher, by the action of the resilient leaf springs on the tapered walls of the launcher passage.
- the projectile element is provided with a rearwardly projecting guide shaft, which is received in a through passage in the launcher and projects at least slightly from the back end of the launcher.
- the projectile once loaded into the launcher, is released by forward pressure on the guide shaft, which can be accomplished manually (i.e. pressing a thumb or finger against the end of the shaft) or by suitable mechanical mechanisms.
- each of the projectile and the launcher are simple, one-piece plastic moldings, which can be manufactured on a high volume, low cost basis by known injection molding procedures.
- FIG. 1 is a perspective illustration of a projectile element constructed in accordance with the principles of the invention.
- FIG. 2 is a side elevational view of a projectile and launcher, with the launcher shown in axial cross section, illustrating the manner in which a projectile is loaded into, or ejected from the launcher.
- FIG. 3 is a side elevational view similar to FIG. 2, with the launcher shown in axial cross section, in which the projectile is shown in its loaded, ready-to-be-launched condition.
- the reference numerals 10 , 11 designate generally a projectile element and launcher constructed according to the invention.
- the projectile element 10 has a front portion 12 which is typically a body of revolution of suitable projectile shape, having a somewhat tapered leading end 13 and a generally cylindrical base 14 .
- the back portion 15 of the projectile includes a plurality (typically two) of leaf spring elements 16 which are integrally mounted to the base 14 in a cantilever fashion and extend therefrom in a rearward direction.
- the leaf spring elements 16 have a slightly concave external contour in a front-to-back direction.
- the leaf spring elements also desirably are tapered from front to back, in both width and thickness to accommodate flexing of the rearward end portions of the leaf spring elements.
- a guide shaft 18 extends rearwardly from the base 14 , along the axis of the projectile element.
- the guide shaft extends rearwardly well beyond the free ends of the leaf spring elements 16 and is provided, at a point somewhat rearward of the end extremities of the leaf spring elements, with a rounded annular enlargement 19 , which is contoured to merge on each axial side thereof with the cylindrical contours of the guide shaft 18 .
- a single launcher unit is illustrated in axial cross section in FIGS. 2 and 3.
- the launcher unit comprises a suitably shaped body 20 formed with a tubular passage 21 comprising a generally cylindrical front portion 22 , opening at the front 23 of the launcher body, and a back portion 24 which is convergently tapered in a front-to-back direction.
- the internal diameter of the front passage portion 22 is slightly greater (e.g. a few thousands of an inch) than the outside diameter of the cylindrical base portion 14 , such that the base portion 14 can be easily slideably received within the front portion 22 of the launcher passage.
- the outermost surface extremities 17 of the leaf spring elements 16 in the normal or at-rest position of the leaf spring elements, is such that the tip edges 17 of the leaf springs easily fit within the walls of the passage front portion 22 .
- the launcher 11 is provided with a through opening 25 of a diameter to freely slideably receive the guide shaft 18 of the projectile element 10 .
- the length of the guide shaft 18 is such, in relation to the length of the tubular passage 21 , that the rearward end extremity 26 of the guide shaft enters the through opening 25 before the leaf spring elements 16 reach the front of the convergently tapered passage portion 24 , and preferably before reaching the front opening 23 of the launcher. In this manner, the guide shaft assists in guiding the projectile element into the launcher passage.
- the annular enlargement 19 enters the through opening 25 .
- the diameter of the through opening is such that it closely but loosely receives the main body of the guide shaft 18 .
- the parts are dimensioned so that there is an interference fit between the annular enlargement 19 and the internal walls of the through opening 25 .
- the through opening 25 is provided adjacent its forward end with a shallow annular groove 25 a adapted to receive the enlargement 19 .
- Initial displacement of the projectile for launching may be effected by manually pushing against the end 26 of the guide shaft 18 with the thumb or finger of the user, or by suitable mechanical devices (not shown) operative to press against or strike the end 26 of the guide shaft.
- the launcher and projectile elements are formed by relatively precision injection molding of plastic materials.
- a preferred material is an acedal copolymer, such as Celcon M270, made available by Hoechst Celanese. This material is desired for its strength and good “memory” characteristics, which are especially beneficial for the repetitively deflected leaf spring elements 16 and the repetitively compressed annular enlargement 19 .
- the launcher on the other hand, preferably is of a nylon plastic, which is advantageous for its low friction characteristics, to enhance the ejecting action of the leaf spring elements within the convergently tapered passage portion 24 .
- a plurality of launcher elements 11 may be arranged in a group to provide a multi-unit projectile launcher, for example.
- the launcher may be incorporated into a toy gun barrel. It is contemplated that the basic concepts of the invention may be utilized in a wide variety of ways to provide interesting and exciting toy projectile launcher devices.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
Abstract
Description
- This application is related to pending application Ser. No. 09/379,829, filed Aug. 24, 1999 and assigned to the owner of this invention, Connector Set Limited Partnership.
- This invention relates to the field of toys, and is particularly useful in connection with, but is not necessarily limited to, construction toys.
- Many toy devices fire or launch projectiles in the course of simulating guns, artillery pieces, rockets, etc. This invention seeks to provide an extremely simple and inexpensive projectile system, consisting of a minimum number of simplified, economically manufactured molded plastic parts, in which toy projectiles are easily and effectively loaded and launched.
- The projectile system of the present invention, in its most basic form, comprises two parts, a one-piece projectile and a one-piece launcher. The basic form of the invention can, of course, be presented in various forms and complexities, but always incorporating the basic component arrangement of projectile and launcher. The projectile element preferably is a one-piece molded plastic element having a projectile-shaped front end portion and a back end portion comprising a plurality of cantilever mounted leaf spring elements extending generally rearwardly and being capable of elastic displacement in a radially inward direction. In conjunction with the projectile element, there is a launcher element which defines a tubular passage arranged to receive at least portions of the projectile element, including the resilient leaf spring elements. The back portion of the tubular passage is convergently tapered in a front-to-back direction such that, when the projectile element is inserted axially into the launcher passage, the free ends of the cantilevered leaf spring elements will be engaged and radially inwardly displaced by the convergently tapered walls. The resiliently displaced leaf spring elements serve to urge the projectile in a launching direction. To provide for controlled launching, a retention arrangement is provided, consisting of elements on the projectile and on the launcher, which hold the projectile in its “loaded” ready-to-be-released position. When the retention elements are disengaged, the projectile is immediately ejected from the launcher, by the action of the resilient leaf springs on the tapered walls of the launcher passage.
- In a particularly preferred embodiment of the invention, the projectile element is provided with a rearwardly projecting guide shaft, which is received in a through passage in the launcher and projects at least slightly from the back end of the launcher. The projectile, once loaded into the launcher, is released by forward pressure on the guide shaft, which can be accomplished manually (i.e. pressing a thumb or finger against the end of the shaft) or by suitable mechanical mechanisms.
- In its most elemental form, each of the projectile and the launcher are simple, one-piece plastic moldings, which can be manufactured on a high volume, low cost basis by known injection molding procedures.
- For a more complete understanding of the above and other features and advantages of the invention, reference should be made to the following detailed description of a preferred embodiment and to the accompanying drawings.
- FIG. 1 is a perspective illustration of a projectile element constructed in accordance with the principles of the invention.
- FIG. 2 is a side elevational view of a projectile and launcher, with the launcher shown in axial cross section, illustrating the manner in which a projectile is loaded into, or ejected from the launcher.
- FIG. 3 is a side elevational view similar to FIG. 2, with the launcher shown in axial cross section, in which the projectile is shown in its loaded, ready-to-be-launched condition.
- Referring now to the drawings, the
reference numerals projectile element 10 has afront portion 12 which is typically a body of revolution of suitable projectile shape, having a somewhat tapered leadingend 13 and a generallycylindrical base 14. Pursuant to the invention, theback portion 15 of the projectile includes a plurality (typically two) ofleaf spring elements 16 which are integrally mounted to thebase 14 in a cantilever fashion and extend therefrom in a rearward direction. To advantage, theleaf spring elements 16 have a slightly concave external contour in a front-to-back direction. The leaf spring elements also desirably are tapered from front to back, in both width and thickness to accommodate flexing of the rearward end portions of the leaf spring elements. - As reflected in FIG. 2, when the
leaf spring elements 16 are in their “at rest” positions, the outer surfaces of therearmost extremities 17 thereof lie approximately on an imaginary cylinder constituting an extension of thebase portion 14. Additionally, as shown in FIG. 1, the outer surfaces of the end extremities are arcuately configured, preferably on a radius somewhat less than the radius of thecylindrical base 14, for purposes that will become evident. - In the preferred embodiment of the invention, a
guide shaft 18 extends rearwardly from thebase 14, along the axis of the projectile element. The guide shaft extends rearwardly well beyond the free ends of theleaf spring elements 16 and is provided, at a point somewhat rearward of the end extremities of the leaf spring elements, with a roundedannular enlargement 19, which is contoured to merge on each axial side thereof with the cylindrical contours of theguide shaft 18. - A single launcher unit is illustrated in axial cross section in FIGS. 2 and 3. The launcher unit comprises a suitably
shaped body 20 formed with atubular passage 21 comprising a generallycylindrical front portion 22, opening at thefront 23 of the launcher body, and aback portion 24 which is convergently tapered in a front-to-back direction. - The internal diameter of the
front passage portion 22 is slightly greater (e.g. a few thousands of an inch) than the outside diameter of thecylindrical base portion 14, such that thebase portion 14 can be easily slideably received within thefront portion 22 of the launcher passage. Likewise, theoutermost surface extremities 17 of theleaf spring elements 16, in the normal or at-rest position of the leaf spring elements, is such that thetip edges 17 of the leaf springs easily fit within the walls of thepassage front portion 22. - At its back end, the
launcher 11 is provided with a through opening 25 of a diameter to freely slideably receive theguide shaft 18 of theprojectile element 10. To advantage, the length of theguide shaft 18 is such, in relation to the length of thetubular passage 21, that therearward end extremity 26 of the guide shaft enters the through opening 25 before theleaf spring elements 16 reach the front of the convergentlytapered passage portion 24, and preferably before reaching the front opening 23 of the launcher. In this manner, the guide shaft assists in guiding the projectile element into the launcher passage. - As indicated in FIG. 3, as the
projectile element 10 is loaded into the launcher, thetip edges 17 of theleaf spring elements 16 engage thewalls 27 of the convergentlytapered passage portion 24. As the projectile is pressed deeper into thelauncher passage 21, theleaf spring elements 16 are displaced radially inwardly toward the axis of the projectile. During this portion of the loading operation, the projectile must be forcibly pressed into the launcher against the resistance of the resiliently displacedleaf spring elements 16, which tend to eject the projectile element from the launcher. - As the projectile element approaches its position of maximum insertion into the loader, the
annular enlargement 19 enters the through opening 25. The diameter of the through opening is such that it closely but loosely receives the main body of theguide shaft 18. The parts are dimensioned so that there is an interference fit between theannular enlargement 19 and the internal walls of the through opening 25. Additionally, the through opening 25 is provided adjacent its forward end with a shallowannular groove 25 a adapted to receive theenlargement 19. Thus, during the last portion of the projectile loading operation, extra force must be applied to the projectile element to force theannular enlargement 19 into theopening 25. This initially compresses the enlargement and causes it to enter thegroove 25 a with a perceptible snap action. The grip between theenlargement 19 and theannular groove 25 a is such that theprojectile element 10 is retained in its loaded position, overcoming the axially directed forces of theleaf springs 16 pressing against thetapered walls 24, which are tending to eject the projectile from the launcher. - When the projectile is in its fully loaded position, the rearwardmost end of the
guide shaft 18 projects rearwardly of the launcher body. In order to launch the projectile, pressure is applied to theback end 26 of the guide shaft sufficient to force the projectile forward relative to the launcher, until theannular enlargement 19 is displaced out of theannular groove 25 a and the forward end of the through opening 25. As soon as the guide shaft is free to move, the projectile is forcibly ejected from the launcher by reason of the outward force of theleaf springs 16 on thetapered walls 27. The projectile is subject to ejecting forces, and thus continues to be accelerated, until thetip edges 17 of the leaf spring elements advance to the cylindricalouter portion 22 of thelauncher passage 21. At this point, the forward momentum of the projectile carries the projectile the rest of the way out of thepassage 21 and launches the projectile on its desired trajectory. - Initial displacement of the projectile for launching may be effected by manually pushing against the
end 26 of theguide shaft 18 with the thumb or finger of the user, or by suitable mechanical devices (not shown) operative to press against or strike theend 26 of the guide shaft. - Preferably, the launcher and projectile elements are formed by relatively precision injection molding of plastic materials. For the
projectile element 10, a preferred material is an acedal copolymer, such as Celcon M270, made available by Hoechst Celanese. This material is desired for its strength and good “memory” characteristics, which are especially beneficial for the repetitively deflectedleaf spring elements 16 and the repetitively compressedannular enlargement 19. The launcher, on the other hand, preferably is of a nylon plastic, which is advantageous for its low friction characteristics, to enhance the ejecting action of the leaf spring elements within the convergentlytapered passage portion 24. - In a typical toy installation, a plurality of
launcher elements 11 may be arranged in a group to provide a multi-unit projectile launcher, for example. Likewise, the launcher may be incorporated into a toy gun barrel. It is contemplated that the basic concepts of the invention may be utilized in a wide variety of ways to provide interesting and exciting toy projectile launcher devices. - It should be understood, of course, that the specific forms of the invention herein illustrated and described are intended to be representative only, as certain changes may be made therein without departing from the clear teachings of the disclosure. Accordingly, reference should be made to the following appended claims in determining the full scope of the invention.
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/764,023 US6460527B1 (en) | 2001-01-17 | 2001-01-17 | Toy projectile system |
GB0131073A GB2371497B (en) | 2001-01-17 | 2001-12-31 | Toy projectile system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/764,023 US6460527B1 (en) | 2001-01-17 | 2001-01-17 | Toy projectile system |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020092512A1 true US20020092512A1 (en) | 2002-07-18 |
US6460527B1 US6460527B1 (en) | 2002-10-08 |
Family
ID=25069462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/764,023 Expired - Lifetime US6460527B1 (en) | 2001-01-17 | 2001-01-17 | Toy projectile system |
Country Status (2)
Country | Link |
---|---|
US (1) | US6460527B1 (en) |
GB (1) | GB2371497B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7448371B2 (en) * | 2005-07-08 | 2008-11-11 | Sapir, Llc | Multi-purpose propulsion device |
US7927173B1 (en) * | 2007-10-16 | 2011-04-19 | Steve Walterscheid | Toy vehicle launched from a connector clip |
US8997727B1 (en) * | 2012-04-25 | 2015-04-07 | Hasbro, Inc. | Projectile shooter toy |
EP2969085B1 (en) | 2013-03-12 | 2017-06-14 | Lego A/S | Shooting toy |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2002100A (en) | 1932-06-27 | 1935-05-21 | Smith Sheffield | Shock absorber |
US2129461A (en) * | 1938-01-19 | 1938-09-06 | Earl A Boerger | Marble shooter |
US2690818A (en) | 1950-02-20 | 1954-10-05 | Chrysler Corp | Snubber unit |
NL79989C (en) | 1951-08-01 | |||
US2888004A (en) * | 1956-03-16 | 1959-05-26 | Bromo Mint Company Inc | Toy dart gun |
IL25148A (en) | 1965-03-02 | 1970-09-17 | Fischer Artur | Building bricks for incorporation in a constructional toy |
US3327814A (en) | 1965-10-07 | 1967-06-27 | Eldon G Nickell | Shock absorber |
US3718326A (en) | 1971-07-26 | 1973-02-27 | Gen Motors Corp | Torsions impact energy absorbing device |
US5934419A (en) | 1977-05-07 | 1999-08-10 | Riad; Fawzy | Frictional shock absorber |
US4195615A (en) * | 1977-11-25 | 1980-04-01 | Belokin Martin P | Retrievable projectile gun |
US4696655A (en) | 1986-08-15 | 1987-09-29 | Andrade Bruce M D | Toy vehicle with adjustable suspension system |
US4760985A (en) | 1986-12-11 | 1988-08-02 | Lockheed Missiles & Space Company, Inc. | Strut dispenser for erecting truss structures in extraterrestrial space |
US4919639A (en) | 1987-01-24 | 1990-04-24 | Kurt Hesse | Toy vehicle |
US5083454A (en) | 1987-12-28 | 1992-01-28 | Ford Motor Company | Force-operated suspension position sensor for automotive vehicle |
USD311942S (en) | 1988-11-29 | 1990-11-06 | Interlego A.G. | Wheel suspension for a toy car |
DE4001032A1 (en) | 1990-01-16 | 1991-07-18 | Wagener Gmbh Fritz | MODEL PLANE WITH ZINC DIE CASTING FUSELAGE / WING AND CHASSIS |
IT1248415B (en) | 1990-02-21 | 1995-01-16 | Quercetti Alessandro & Co | INSTRUCTIVE TOY IN THE FORM OF A DISPOSABLE VEHICLE MODEL. |
DK167379B1 (en) | 1990-12-04 | 1993-10-25 | Lego As | TOYS BUILDING ELEMENT WITH SPRING MECHANISM |
GB9108626D0 (en) | 1991-04-23 | 1991-06-12 | Rover Group | A motor vehicle interior fitting |
US5199410A (en) * | 1991-12-12 | 1993-04-06 | Cheng Cheng Tsuan | Toy saucer launching and catching device |
US5322469A (en) | 1992-07-31 | 1994-06-21 | Tyco Investment Corp | Vehicle toy with elevating body |
US5338247A (en) | 1992-10-30 | 1994-08-16 | Miles Jeffrey A | Battery powered model car |
US5380231A (en) | 1993-11-15 | 1995-01-10 | Lanard Toys Limited | Toy that disassembles upon an impact |
US5664551A (en) * | 1996-09-20 | 1997-09-09 | Spector; Donald | Toy rocket and launcher assembly |
US6193582B1 (en) | 1999-08-24 | 2001-02-27 | Connector Set Limited Partnership | Shock absorber for toy vehicles |
-
2001
- 2001-01-17 US US09/764,023 patent/US6460527B1/en not_active Expired - Lifetime
- 2001-12-31 GB GB0131073A patent/GB2371497B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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GB2371497B (en) | 2004-08-11 |
GB2371497A (en) | 2002-07-31 |
US6460527B1 (en) | 2002-10-08 |
GB0131073D0 (en) | 2002-02-13 |
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