BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows an elevational schematic view of the present invention.
FIG. 2 shows an exploded structural schematic view according to the present invention.
FIG. 3 shows a cross-sectional view along line 3-3 of FIG. 1 of the present invention.
FIG. 4 shows a schematic view depicting setting up of the present invention.
FIG. 5 shows a schematic view depicting starting up according to the present invention.
FIG. 6 shows a schematic view depicting withdrawing of a power tool after starting up according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIGS. 1, 2 and 3, which show the present invention structured to comprise a driving portion 1 and a driven portion 2.
The aforementioned driving portion 1 comprises a case 11, interior of which is provided with a hollow holding portion 12. A hollow shaft sleeve 13 is located on a circumference of the case 11 and assumes a 45 degree angle therewith; moreover, the hollow shaft sleeve 13 forms a passageway with the holding portion 12. A copper (brass) bush 14 is disposed in the hollow shaft sleeve 13, and a spring 15 and a washer 16 are positioned on an upper portion of the copper (brass) bush 14, moreover, a shaft 17 penetrates the hollow shaft sleeve 13, thereby assembling the shaft 17 at a 45 degree angle disposition on the case 11. Atop end of the shaft 17 is provided with a sleeve joint portion 171, and an inner hexagonal concavity portion 172 is defined in a top end of the sleeve joint portion 171. A left-handed screw crossbite (L) external screw thread 173 is formed on a bottom end of the shaft 17, which enables the external screw thread 173 to screw into a corresponding internal screw thread 181 formed at an axle center of the driving bevel gear 18, thereby positionally fixing the driving bevel gear 18 in the holding portion 12. Moreover, an elastic effect of the spring 15 positioned on an upper portion of the shaft 17 enables the driving bevel gear 18 to separate from a driven bevel gear 25 in the driven portion 2 and assume a disengaged state.
The driven portion 2 comprises a cover body 21 that covers an opening of the holding portion 12 of the aforementioned case 11. Moreover, a through hole 22 is defined center of the cover body 21, and a shaft sleeve 23 is fixedly embedded in the through hole 22. A central shaft 24 penetrates the shaft sleeve 23, and a left-handed screw crossbite (L) external screw thread 241 is formed on one end of the central shaft 24, which enables the external screw thread 241 to screw into a corresponding internal screw thread 251 formed at an axle center of the driven bevel gear 25, thereby configuring a remote control car starter having a engaging and disengaging structure.
Referring to FIGS. 4 and 5, which show the present invention configured to one side of a remote control car engine 3, wherein an outer end of the central shaft 24 of the driven portion 2 is connected to a connecting portion of the remote control car engine 3. When a user wishes to start the remote control car engine 3, an end portion of an electric power tool carried by the user is end connected to a shaft having an outer hexagonal form and inserted into the sleeve joint portion 171 of the top end of the shaft 17 of the driving portion 1, which causes a mutual embedding and clamping of the shaft and the inner hexagonal concavity portion 172 of the sleeve joint portion 171, and simultaneously exerts a downward pressure that compresses the spring 15 and causes mutually meshing of the driving bevel gear 18 at the bottom end of the shaft 17 and the driven bevel gear 25 of the central shaft 24 of the remote control car engine 3. Hence, starting the power tool causes the shaft to rotate, which further actuates and rotates the shaft 17 of the driving portion I within the hollow shaft sleeve 13, thereby engaging rotation of the driving bevel gear 18 at the bottom end of the shaft 17 and causing mutual meshing between the driving bevel gear 18 and the driven bevel gear 25, which further engages rotation of the central shaft 24 of the driven bevel gear 25. Hence, the connecting portion of the remote control car engine 3 connected to the other end of the central shaft 24 is rotated (see FIG. 5). Because of the high rotating speed produced after starting the remote control car engine 3, thus, in order to prevent the user being unable to quickly withdraw the power tool due to human factors, the present invention configures the central shaft 24 and the connecting portion of the remote control car engine 3 to a unilateral bearing. Hence, after starting the remote control car engine 3, the unilateral bearing enables the central shaft 24 to assume a release state, thereby preventing human factors from affecting the remote control car engine 3.
Referring to FIGS. 4 and 6, after the user withdraws the power tool from the shaft 17 of the driving portion 1, then the elastic restoring force effect of the spring 15 positioned on an upper portion of the shaft 17 causes the shaft 17 to upwardly spring back, which simultaneously causes the driving bevel gear 18 at the bottom end of the shaft 17 to upwardly separate from meshing with the driven bevel gear 25, thereby releasing output power of the remote control car engine 3 from being restrained by the driving portion 1, which would otherwise result in reduction in the output power.
In conclusion, the concise components and simple assembly of a remote control car starter with engaging and disengaging structure of the present invention is provided with an integral configuration that is innovative when compared to existing remote control car engine starter devices. Moreover, advancement in effectiveness can be clearly seen, and practicability and advancement of the present invention clearly comply with essential elements as required for a new patent application. Accordingly, a new patent application is proposed herein.
It is of course to be understood that the embodiments described herein are merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
Patent Application
20070295118
