US20070178798A1 - Model helicopter - Google Patents

Model helicopter Download PDF

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Publication number
US20070178798A1
US20070178798A1 US11/340,457 US34045706A US2007178798A1 US 20070178798 A1 US20070178798 A1 US 20070178798A1 US 34045706 A US34045706 A US 34045706A US 2007178798 A1 US2007178798 A1 US 2007178798A1
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US
United States
Prior art keywords
tail pipe
main body
model helicopter
base
connecting portion
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.)
Abandoned
Application number
US11/340,457
Inventor
Aling Lai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thunder Tiger Corp
Original Assignee
Thunder Tiger Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thunder Tiger Corp filed Critical Thunder Tiger Corp
Priority to US11/340,457 priority Critical patent/US20070178798A1/en
Assigned to THUNDER TIGER & CORPORATION reassignment THUNDER TIGER & CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LAI, ALING
Publication of US20070178798A1 publication Critical patent/US20070178798A1/en
Abandoned legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H27/00Toy aircraft; Other flying toys
    • A63H27/12Helicopters ; Flying tops

Definitions

  • the present invention relates to an improved model helicopter, and more particularly to an improved model helicopter having an easily detachable tail pipe connecting base.
  • the structure includes two corresponding casings 7 engaged with each other, and the two casings 7 are engaged with each other by a plurality of screws 8 , and the two casings 7 include a rotor transmission mechanism (not shown in the figure) of the model helicopter, a servo base 9 , a control cantilever 91 , an elevation control base 92 (since the two casings includes many components that are not related to the present invention, therefore only the related components are shown in the figure for illustrations), and the two casings separately include pivotal bases 71 that can be engaged with each other and pivotally connected to a tail rotor transmission module 93 .
  • the tail rotor transmission module 93 will be damaged easily, if the model helicopter is fallen down accidentally. If a user wants to repair the tail rotor transmission module 93 , it is necessary to remove the two casings 7 first and then loosen the plurality of secured screws 8 one by one before the user can repair or replace the tail rotor transmission module 93 . Such arrangement causes inconvenience to the user. Furthermore, the user has to reinstall the two casings 7 and secure the screws back to their original positions after the repair is made, and thus the design causes tremendous inconvenience and waste time for the maintenance and repair.
  • the primary objective of the present invention is to overcome the aforementioned shortcomings by providing an improved model helicopter, wherein a main body for containing a rotor transmission mechanism of the model helicopter and a tail pipe connecting base are detachably connected with each other, such that if the tail rotor transmission module installed at the tail pipe connecting base is damaged, users can remove the tail pipe connecting base directly to facilitate the maintenance, repair, or replacement of the tail rotor transmission module.
  • the improved model helicopter of the invention comprises:
  • main body having a containing space for installing a rotor transmission mechanism of a model helicopter, and a connecting track transversally disposed at the main body;
  • a tail pipe connecting base having a positioning groove for connecting a tail pipe of the model helicopter, a pivotal base disposed at an end without the positioning groove, and at least one pressing surface pressing against the connecting track of the main body and detachably connecting the connecting track of the main body to produce a relative pivotal rotation between the tail pipe connecting base and the main body;
  • a transmission module pivotally coupled to the pivotal base of the tail pipe connecting base, and having a first transmission portion disposed at an end of the transmission module and linked with the rotor transmission mechanism, and another end of the transmission module having a second transmission portion.
  • FIG. 1 is a perspective view of a model helicopter adopting a tail pipe connecting base according to the present invention
  • FIG. 2 is a perspective view of a tail pipe connecting base connected with a tail pipe according to the present invention
  • FIG. 3 is a schematic view of a tail pipe connecting base according to the present invention.
  • FIG. 4 is an exploded view of a main body according to the present invention.
  • FIG. 5 is a schematic view of the structure of a tail pipe connecting base according to the present invention.
  • FIG. 6 is a schematic view of the structure of a tail pipe connecting base connected with a tail pipe according to the present invention.
  • FIG. 7 is an exploded view of a casing of a prior art model helicopter.
  • FIGS. 1 to 6 the structure according to a preferred embodiment of the present invention is used for illustrations only, but not intended to limit the scope of the present invention.
  • FIG. 1 a perspective view of a model helicopter adopting a tail pipe connecting base according to the present invention is shown, and the structure of the model helicopter includes a main body 1 , a rotor transmission mechanism 2 , a rotor 3 , a tail pipe connecting base 4 , and a tail pipe 5 .
  • the main body 1 of the embodiment is formed integrally, and the main body 1 has a containing space 11 for installing the rotor transmission mechanism 2 of the model helicopter and a containing track 12 transversally disposed on the main body 1 . It is worth pointing out that the main body 1 could be made by engaging two side panels.
  • the tail pipe connecting base 4 includes a positioning groove 41 for connecting the tail pipe 5 of the model helicopter, and the tail pipe connecting base 4 has a pivotal base 42 disposed at an end without the positioning groove 41 .
  • the connecting track 12 of the main body 1 is corresponsive with an external periphery of the tail pipe connecting base 4 for fixing the tail pipe connecting base 4 into its position, and the top of the tail pipe connecting base 4 has a pressing surface 45 for pressing against the connecting track 12 of the main body 1 and being detachably coupled to the connecting track 12 of the main body 1 and preventing corresponding pivotal rotations between the tail pipe connecting base 4 and the main body 1 .
  • the tail pipe connecting base 4 and the main body 1 separately have screw holes 13 , 40 for fixing both of the tail pipe connecting base 4 and the main body 1 into their positions by screws 131 , so that when a user wants to conduct a maintenance or repair, the screws are loosened to separate the tail pipe connecting base 4 and the main body 1 directly.
  • the maintenance and repair are very convenient and can save the troubles caused by the removal and reinstallation of the parts of the model helicopter.
  • the pivotal base 42 includes a first connecting portion 421 integrally connected to the positioning groove 41 and a second connecting portion 422 corresponding to the first connecting portion 421 , and the first connecting portion 421 and the second connecting portion 422 are detachably combined with each other, and the first connecting portion 421 and the second connecting portion 422 respectively have two pivotal grooves 423 facing with each other, so that the first connecting portion 421 and the pivotal groove 423 of the second connecting portion 422 are engaged to pivotally couple the transmission module 43 at an area formed by the two pivotal grooves 423 .
  • the tail pipe connecting base 4 includes a slot 411 extended longitudinally along the positioning groove 41 , and the tail pipe connecting base 4 includes an adjusting hole separately disposed on both sides of the slot 411 for adjusting the screw 441 to change the size of the positioning groove 41 , so that the tail pipe 5 and the positioning groove 41 can be combined closely.
  • the tail pipe connecting base 4 is pivotally coupled to the transmission module 43
  • the transmission module 43 of this preferred embodiment is a tail rotor transmission module pivotally coupled to the pivotal base 42 of the tail pipe connecting base 4
  • an end of the transmission module 43 includes a first transmission portion 431 linked to the rotor transmission mechanism 2 and another end of the transmission module 43 includes a second transmission portion 432 .
  • the first connecting portion 421 and the second connecting portion 422 separately include corresponding fixing holes 424 to be fixed by screws 425 , such that after a user removes the main body 1 and the tail pipe connecting base 4 , the first connecting portion 421 and the second connecting portion 422 can be separated directly for maintaining, repairing, or replacing the transmission module 43 . Therefore, the invention not only provides a convenient and quick detachable structure of a tail pipe 5 , but also saves the time for removing and reinstalling the tail pipe 5 and the tail rotor transmission module.

Abstract

An improved model helicopter includes a main body and a tail pipe connecting base, and the main body has a containing space for containing a rotor transmission mechanism of a model helicopter and a connecting track transversally disposed on the main body, and the tail pipe connecting base is connected to a tail pipe, and a transmission module is pivotally connected to an end of the pipe connecting base without the tail pipe, and the tail pipe connecting base is detachably installed into the connecting track of the main body.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to an improved model helicopter, and more particularly to an improved model helicopter having an easily detachable tail pipe connecting base.
  • 2. Description of the Related Art
  • Referring to FIG. 7 for the helicopter casing structure of a prior art model helicopter, the structure includes two corresponding casings 7 engaged with each other, and the two casings 7 are engaged with each other by a plurality of screws 8, and the two casings 7 include a rotor transmission mechanism (not shown in the figure) of the model helicopter, a servo base 9, a control cantilever 91, an elevation control base 92 (since the two casings includes many components that are not related to the present invention, therefore only the related components are shown in the figure for illustrations), and the two casings separately include pivotal bases 71 that can be engaged with each other and pivotally connected to a tail rotor transmission module 93.
  • However, the tail rotor transmission module 93 will be damaged easily, if the model helicopter is fallen down accidentally. If a user wants to repair the tail rotor transmission module 93, it is necessary to remove the two casings 7 first and then loosen the plurality of secured screws 8 one by one before the user can repair or replace the tail rotor transmission module 93. Such arrangement causes inconvenience to the user. Furthermore, the user has to reinstall the two casings 7 and secure the screws back to their original positions after the repair is made, and thus the design causes tremendous inconvenience and waste time for the maintenance and repair.
  • SUMMARY OF THE INVENTION
  • The primary objective of the present invention is to overcome the aforementioned shortcomings by providing an improved model helicopter, wherein a main body for containing a rotor transmission mechanism of the model helicopter and a tail pipe connecting base are detachably connected with each other, such that if the tail rotor transmission module installed at the tail pipe connecting base is damaged, users can remove the tail pipe connecting base directly to facilitate the maintenance, repair, or replacement of the tail rotor transmission module.
  • To achieve the foregoing objective, the improved model helicopter of the invention comprises:
  • a main body, having a containing space for installing a rotor transmission mechanism of a model helicopter, and a connecting track transversally disposed at the main body;
  • a tail pipe connecting base, having a positioning groove for connecting a tail pipe of the model helicopter, a pivotal base disposed at an end without the positioning groove, and at least one pressing surface pressing against the connecting track of the main body and detachably connecting the connecting track of the main body to produce a relative pivotal rotation between the tail pipe connecting base and the main body; and
  • a transmission module, pivotally coupled to the pivotal base of the tail pipe connecting base, and having a first transmission portion disposed at an end of the transmission module and linked with the rotor transmission mechanism, and another end of the transmission module having a second transmission portion.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of a model helicopter adopting a tail pipe connecting base according to the present invention;
  • FIG. 2 is a perspective view of a tail pipe connecting base connected with a tail pipe according to the present invention;
  • FIG. 3 is a schematic view of a tail pipe connecting base according to the present invention;
  • FIG. 4 is an exploded view of a main body according to the present invention;
  • FIG. 5 is a schematic view of the structure of a tail pipe connecting base according to the present invention;
  • FIG. 6 is a schematic view of the structure of a tail pipe connecting base connected with a tail pipe according to the present invention; and
  • FIG. 7 is an exploded view of a casing of a prior art model helicopter.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Referring to FIGS. 1 to 6, the structure according to a preferred embodiment of the present invention is used for illustrations only, but not intended to limit the scope of the present invention.
  • In FIG. 1, a perspective view of a model helicopter adopting a tail pipe connecting base according to the present invention is shown, and the structure of the model helicopter includes a main body 1, a rotor transmission mechanism 2, a rotor 3, a tail pipe connecting base 4, and a tail pipe 5.
  • Referring to FIGS. 1 to 3, the main body 1 of the embodiment is formed integrally, and the main body 1 has a containing space 11 for installing the rotor transmission mechanism 2 of the model helicopter and a containing track 12 transversally disposed on the main body 1. It is worth pointing out that the main body 1 could be made by engaging two side panels.
  • In FIGS. 4 and 5, the tail pipe connecting base 4 includes a positioning groove 41 for connecting the tail pipe 5 of the model helicopter, and the tail pipe connecting base 4 has a pivotal base 42 disposed at an end without the positioning groove 41.
  • The connecting track 12 of the main body 1 is corresponsive with an external periphery of the tail pipe connecting base 4 for fixing the tail pipe connecting base 4 into its position, and the top of the tail pipe connecting base 4 has a pressing surface 45 for pressing against the connecting track 12 of the main body 1 and being detachably coupled to the connecting track 12 of the main body 1 and preventing corresponding pivotal rotations between the tail pipe connecting base 4 and the main body 1.
  • The tail pipe connecting base 4 and the main body 1 separately have screw holes 13, 40 for fixing both of the tail pipe connecting base 4 and the main body 1 into their positions by screws 131, so that when a user wants to conduct a maintenance or repair, the screws are loosened to separate the tail pipe connecting base 4 and the main body 1 directly. The maintenance and repair are very convenient and can save the troubles caused by the removal and reinstallation of the parts of the model helicopter.
  • The pivotal base 42 includes a first connecting portion 421 integrally connected to the positioning groove 41 and a second connecting portion 422 corresponding to the first connecting portion 421, and the first connecting portion 421 and the second connecting portion 422 are detachably combined with each other, and the first connecting portion 421 and the second connecting portion 422 respectively have two pivotal grooves 423 facing with each other, so that the first connecting portion 421 and the pivotal groove 423 of the second connecting portion 422 are engaged to pivotally couple the transmission module 43 at an area formed by the two pivotal grooves 423.
  • The tail pipe connecting base 4 includes a slot 411 extended longitudinally along the positioning groove 41, and the tail pipe connecting base 4 includes an adjusting hole separately disposed on both sides of the slot 411 for adjusting the screw 441 to change the size of the positioning groove 41, so that the tail pipe 5 and the positioning groove 41 can be combined closely.
  • Referring to FIGS. 4 to 6, the tail pipe connecting base 4 is pivotally coupled to the transmission module 43, and the transmission module 43 of this preferred embodiment is a tail rotor transmission module pivotally coupled to the pivotal base 42 of the tail pipe connecting base 4, and an end of the transmission module 43 includes a first transmission portion 431 linked to the rotor transmission mechanism 2 and another end of the transmission module 43 includes a second transmission portion 432.
  • The first connecting portion 421 and the second connecting portion 422 separately include corresponding fixing holes 424 to be fixed by screws 425, such that after a user removes the main body 1 and the tail pipe connecting base 4, the first connecting portion 421 and the second connecting portion 422 can be separated directly for maintaining, repairing, or replacing the transmission module 43. Therefore, the invention not only provides a convenient and quick detachable structure of a tail pipe 5, but also saves the time for removing and reinstalling the tail pipe 5 and the tail rotor transmission module.
  • While the invention has been described by way of example and in terms of a preferred embodiment, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.

Claims (7)

1. An improved model helicopter, comprising:
a main body, having a containing space for installing a rotor transmission mechanism of a model helicopter, and a connecting track transversally disposed at said main body;
a tail pipe connecting base, having a positioning groove for connecting a tail pipe of said model helicopter, a pivotal base disposed at an end other than said positioning groove, and at least one pressing surface for pressing against said connecting track of said main body and detachably connecting said connecting track of said main body to produce a relative pivotal rotation between said tail pipe connecting base and said main body; and
a transmission module, pivotally coupled to said pivotal base of said tail pipe connecting base, and having a first transmission portion disposed at an end of said transmission module and linked to said rotor transmission mechanism, and another end of said transmission module having a second transmission portion.
2. The improved model helicopter of claim 1, wherein said main body is formed by engaging two side panels.
3. The improved model helicopter of claim 1, wherein said main body is integrally formed.
4. The improved model helicopter of claim 1, wherein said connecting track of said main body corresponds with an external periphery of said tail pipe connecting base for positioning said tail pipe connecting base to prevent said tail pipe connecting base and said main body from being rotated and swung pivotally.
5. The improved model helicopter of claim 1, wherein said pivotal base includes a first connecting portion integrally coupled with said positioning groove and a second connecting portion corresponding to said first connecting portion, and said first connecting portion and said second connecting portion are detachably connected, and said first connecting portion and said second connecting portion respectively include two pivotal grooves facing with each other, such that said pivotal grooves of said first connecting portion and said second connecting portion are engaged with each other to pivotally connect said transmission module to an area formed by said two pivotal grooves.
6. The improved model helicopter of claim 1, wherein said transmission module is a tail rotor transmission module.
7. The improved model helicopter of claim 5, wherein said tail pipe connecting base includes a slot extended longitudinally along said positioning groove.
US11/340,457 2006-01-27 2006-01-27 Model helicopter Abandoned US20070178798A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/340,457 US20070178798A1 (en) 2006-01-27 2006-01-27 Model helicopter

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US11/340,457 US20070178798A1 (en) 2006-01-27 2006-01-27 Model helicopter

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070221781A1 (en) * 2006-01-19 2007-09-27 Silverlit Toys Manufactory, Ltd. Helicopter
US7662013B2 (en) 2006-01-19 2010-02-16 Silverlit Toys Manufactory Ltd. Helicopter with horizontal control
US7883392B2 (en) * 2008-08-04 2011-02-08 Silverlit Toys Manufactory Ltd. Toy helicopter
US8002604B2 (en) 2006-01-19 2011-08-23 Silverlit Limited Remote controlled toy helicopter
US8052500B2 (en) 2008-11-25 2011-11-08 Silverlit Limited Helicopter with main and auxiliary rotors
US8308522B2 (en) 2006-01-19 2012-11-13 Silverlit Limited Flying toy
US8357023B2 (en) 2006-01-19 2013-01-22 Silverlit Limited Helicopter
WO2012168881A3 (en) * 2011-06-07 2013-06-27 Sab Heli Division S.R.L. Radio-controlled helicopter
CN104083876A (en) * 2014-07-28 2014-10-08 朱彩玲 Rear vertical tail used for toy plane
US20140315464A1 (en) * 2013-04-23 2014-10-23 Kevork G. Kouyoumjian Remotely Controlled, Impact-Resistant Model Helicopter
US20160288006A1 (en) * 2011-05-24 2016-10-06 Shenzhen Shen's Tongchuang Aeronautic Model Co., Ltd. Pitching Arrangement for Model Helicopter
CN108216555A (en) * 2018-03-12 2018-06-29 珠海紫燕无人飞行器有限公司 A kind of electric unmanned helicopter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040217229A1 (en) * 2001-09-04 2004-11-04 Arlton Paul E Rotor system for helicopters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040217229A1 (en) * 2001-09-04 2004-11-04 Arlton Paul E Rotor system for helicopters

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8308522B2 (en) 2006-01-19 2012-11-13 Silverlit Limited Flying toy
US7662013B2 (en) 2006-01-19 2010-02-16 Silverlit Toys Manufactory Ltd. Helicopter with horizontal control
US7815482B2 (en) 2006-01-19 2010-10-19 Silverlit Toys Manufactory, Ltd. Helicopter
US20070221781A1 (en) * 2006-01-19 2007-09-27 Silverlit Toys Manufactory, Ltd. Helicopter
US8002604B2 (en) 2006-01-19 2011-08-23 Silverlit Limited Remote controlled toy helicopter
US8357023B2 (en) 2006-01-19 2013-01-22 Silverlit Limited Helicopter
US7883392B2 (en) * 2008-08-04 2011-02-08 Silverlit Toys Manufactory Ltd. Toy helicopter
US8052500B2 (en) 2008-11-25 2011-11-08 Silverlit Limited Helicopter with main and auxiliary rotors
US20160288006A1 (en) * 2011-05-24 2016-10-06 Shenzhen Shen's Tongchuang Aeronautic Model Co., Ltd. Pitching Arrangement for Model Helicopter
US9821239B2 (en) * 2011-05-24 2017-11-21 Shenzhen Shen's Tongchuang Aeronautic Model Co., Ltd. Pitching arrangement for model helicopter
WO2012168881A3 (en) * 2011-06-07 2013-06-27 Sab Heli Division S.R.L. Radio-controlled helicopter
US20140315464A1 (en) * 2013-04-23 2014-10-23 Kevork G. Kouyoumjian Remotely Controlled, Impact-Resistant Model Helicopter
CN104083876A (en) * 2014-07-28 2014-10-08 朱彩玲 Rear vertical tail used for toy plane
CN108216555A (en) * 2018-03-12 2018-06-29 珠海紫燕无人飞行器有限公司 A kind of electric unmanned helicopter

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Legal Events

Date Code Title Description
AS Assignment

Owner name: THUNDER TIGER & CORPORATION, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LAI, ALING;REEL/FRAME:017233/0039

Effective date: 20060126

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION