CN2474203Y

CN2474203Y - Two section speed change mechanism for remote controlled toy car

Info

Publication number: CN2474203Y
Application number: CN 01218307
Authority: CN
Inventors: 吕可为
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-27
Filing date: 2001-03-27
Publication date: 2002-01-30
Anticipated expiration: 2011-03-27

Abstract

A two-step speed-shifting mechanism of a remote control toy vehicle comprises a first gear, a second gear, an output shaft, a clutch coupling, an idler gear, a driven gear and an engine. The first gear is provided with a retracting space, the lateral wall of which is arranged with projected blocks. The first gear and the second gear are strung together by the output shaft. The clutch coupling is integrated to the output shaft and is positioned in the retracting space of the first gear. The idler gear comprises a first gear and a second gear which are respectively meshed with the first and the second gear. The driven gear is integrated to the first gear. The engine is integrated with a drive gear which is meshed with the driven gear. The utility model of the two-step speed-shifting mechanism can enable the performance of torsion force lifting of acceleration or deceleration to perform more outstanding.

Description

Remote-controlled toy vehicle two variator structures

The utility model relates to a kind of remote-controlled toy vehicle, relates in particular to the remote-controlled toy vehicle two variator structures that a kind of performance that makes acceleration or deceleration promote torsion shows more excellently.

The gasoline of commonly using draws the formula remote-controlled toy vehicle of pulling, when power by after the engine output, must be again via gear to promote torsion.But because the equal structural design of one-part form just of traditional toy car gear, thus when toy car when acceleration is advanced, the effect of its acceleration is very not remarkable, and the torsion during low speed can not promote.

Though the toy car two-period form gear of commonly using can overcome the shortcoming of aforementioned one-part form gear, but its volume is bigger, can take the space, chassis of toy car, cause the volume of toy car also must make greatlyyer, weight is also heavier, so its manufacturing cost is higher, does not meet economic benefit, also damage easily; Because its precision is higher, structure is also complicated, all makes traditional two-period form gear make difficulty again.

Main purpose of the present utility model is, a kind of remote-controlled toy vehicle two variator structures are provided, it is in the process of engine acceleration and deceleration, utilize the cooperation of gear mechanism and reach two sections speed changing effect of further acceleration or deceleration, allow and quicken or the performance that promotes torsion of slowing down shows more excellently.

Of the present utility model time a purpose is, a kind of remote-controlled toy vehicle two variator structures are provided, and it quickens and the automatic conversion of deceleration is to utilize the ingenious conversion of gear mechanism to finish.

A purpose more of the present utility model is, a kind of remote-controlled toy vehicle two variator structures are provided, and the two-period form gear that its whole structure is more traditional is simplified, and volume is little, can not take too much space, chassis, is not easy to damage, thereby manufacturing cost is lower, has better economic worth.

The purpose of this utility model is realized by following technical scheme.

A kind of remote-controlled toy vehicle two variator structures is characterized in that, include: one first gear, one second gear, an output shaft, a clutch, an idle gear, a driven gear, an engine; Described first gear has recessed space, and the sidewall in this recessed space is provided with projection; Described output shaft string is provided with described first gear and second gear, and is provided with two-way bearing between this output shaft and first gear, is provided with unilateral bearing between the output shaft and second gear; Described clutch is to be incorporated into this output shaft, and this clutch is positioned at the dented space of this first gear; Described idle gear has first gear teeth and second gear teeth, and these first and second gear teeth are engaged in this first gear and second gear respectively; Described driven gear is to be meshed with this first gear; Described engine is combined with a driving gear, and this driving gear is engaged in this driven gear.

The purpose of this utility model can also further realize by following technical measures.

Aforesaid remote-controlled toy vehicle two variator structures, wherein the structure of this clutch is with the pivot swing element that is pivoted, and an end of swing element is subjected to the element top of pulling, a top and pulls, and pull a spring be set between element and the clutch body in the top.

The utility model is in the process of engine acceleration and deceleration, utilize the cooperation of gear mechanism and reach two sections speed changing effect of further acceleration or deceleration, allow the acceleration or the performance that promotes torsion of slowing down show more excellently, and it quickens and the automatic conversion of deceleration is to utilize the ingenious conversion of gear mechanism to finish, the two-period form gear that its whole structure is more traditional is simplified, and volume is little, can not take too much space, chassis, be not easy to damage, thereby manufacturing cost is lower, has better economic worth.

For further understanding technology contents of the present utility model, characteristics and effect, exemplify following preferred embodiment now, and conjunction with figs. is described in detail as follows:

Fig. 1 is the plan cross-section decomposing schematic representation of each element syntagmatic of the utility model.

Fig. 2 is the section plan of each element combining structure shown in Figure 1.

Fig. 3 is the section plan of clutch configuration of the present utility model.

Fig. 4 is the action schematic diagram of clutch shown in Figure 3.

Consult shown in Figure 1ly, the utility model includes engine 3, a driven gear 2, one first gear 4, a clutch 5, one second gear 6, an idle gear 7, a unilateral bearing 8 and the output shaft 9 that the body of being made up of a housing 1 and a lid 1A, is combined with driving gear 31.

Bottom surface in the aforesaid housing 1 is provided with a hole 13 and a shrinkage pool 11; Bottom surface in the lid 1A is provided with a shrinkage pool 11A corresponding to these shrinkage pool 11 positions too, covers with housing 1 by lid 1A to constitute a body.One side of first gear 4 has recessed space, and the sidewall in this recessed space is provided with projection 45 (as shown in Figure 3).External diameter at first gear 4 is provided with the gear teeth 41, and is provided with external screw thread 42 at an end of first gear 4; Being provided with one in the centre bore 44 of first gear 4 can be at the bearing 43 of both direction rotation.The external diameter of second gear 6 is provided with the gear teeth 61, and has centre bore 62, is equipped with a unilateral bearing 8 therein in the heart hole 62.

The structure of clutch 5 as shown in Figure 3, it is with a pivot 511 swing element 51 that is pivoted, and makes the swing element 51 can be as swinging as the seesaw; One end of swing element 51 is subjected to element 53 top of pulling, a top and pulls, and pulling and between element 53 and clutch 5 bodies spring 52 is set in the top, utilizes the elastic force of spring 52 to act on an end of swing element 51, and make the other end of swing element 51 can not stretch out clutch.Aforesaid spring 52 is can be controlled, and by adjusting the elastic force size that spring 52 acts on swing element 51, the centrifugal force that can solenoidoperated cluthes 5 be produced under the rotating speed of certain value could allow an end of swing element 51 throw away outside the clutch.The central authorities of clutch 5 are provided with a clamp ring 54, clamp ring 54 has extended intermediate plate 541, clamp ring 54 is used to be set in output shaft 9, and utilize screw 55 to lock in intermediate plate 541 and clamp ring 54 is tightened, and then utilize clamp ring 54 that output shaft 9 is fixedly clamped, make clutch 5 be fixed on output shaft 9, and clutch 5 is inserted in the dented space of first gear 4.When aforesaid output shaft 9 is located at first gear 4 and second gear 6 at string, combine with unilateral bearing 8 with bearing 43 with seasonal output shaft 9.

Idle gear 7 has first gear teeth 71 of relatively large external diameter and second gear teeth 72 of relative less external diameter, be after utilizing a central shaft 12 to pass the axis hole of idle gear 7, again the two ends of central shaft 12 are inserted in respectively in the

shrinkage pool

11,11A of housing 1 and lid 1A, and the gear teeth 41, the second gear teeth 72 that make its first gear teeth 71 be engaged in first gear 4 then are engaged in the gear teeth 61 of second gear 6.

Aforesaid first gear 4 in being combined in housing 1 after, make its external screw thread 42 pass the hole 13 of housing 1, and make its external screw thread 42 be locked on the internal thread 21 of a driven gear 2, make the driven gear 2 and first gear 4 be combined as a whole, 2 of driven gears are engaged in the driving gear 31 that is combined in engine 3.

After aforesaid element was combined, with lid ¨ and housing 1 involutory covering and locking, the structure after its combination as shown in Figure 2.

By aforesaid mechanism, when the engine 3 initial operation, driving gear 31 drives driven gear 2 and first gear 4 rotates synchronously, 4 of first gears drive idle gear 7 because being engaged in first gear teeth 71 and rotate, because second gear teeth 72 are to be incorporated into first gear teeth 71, thereby idle gear 7 drives 6 rotations of second gear again, second gear 6 drives output shaft 9 with the lower-speed state rotation via the effect of unilateral bearing 8, the trailing wheel that the

first end

91 and 92 of the second ends of output shaft 9 is connected to toy car respectively reaches preceding wheel system and drives the front and rear wheel rotation.Output shaft 9 is to allow clutch 5 along with output shaft 9 rotations in rotation.When the constantly output and quickening of the power of engine 3, cause the rotating speed of output shaft 9 to increase when arriving 5 predetermined set value of clutch, clutch 5 is subjected to centrifugal action can be made swing element 51 overcome the elastic force of spring 52 and throw away (as shown in Figure 4) outside the clutch.The projection 45 of first gear 4 in this moment rotation can contact swing elements 51 outstanding ends and chimeric, therefore can allow the acceleration of output shaft 9 further obtain to promote so that engine power directly is communicated to output shaft 9 and reaches not decelerating effect via first gear 4 of driven gear 2.After power that engine 3 is exported reduces and then makes the speed drop of output shaft 9 be low to moderate the setting value of expection, then the elastic force of spring 52 overcomes centrifugal force again and makes swing element 51 originally be embedded in the end retraction clutch 5 of projection 45, thereby the power of engine 3 can be exported by output shaft 9 decelerations via first gear 4, idle gear 7 and second gear 6 more again, make the torsion performance of output shaft 9 more excellent, reach two sections self-shifting purposes whereby.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of remote-controlled toy vehicle two variator structures is characterized in that, include: one first gear, one second gear, an output shaft, a clutch, an idle gear, a driven gear, an engine;

Described first gear has recessed space, and the sidewall in this recessed space is provided with projection;

Described output shaft string is provided with described first gear and second gear, and is provided with two-way bearing between this output shaft and first gear, is provided with unilateral bearing between the output shaft and second gear;

Described clutch is to be incorporated into this output shaft, and this clutch is positioned at the dented space of this first gear;

Described idle gear has first gear teeth and second gear teeth, and these first and second gear teeth are engaged in this first gear and second gear respectively;

Described driven gear is to be meshed with this first gear;

Described engine is combined with a driving gear, and this driving gear is engaged in this driven gear.

2, remote-controlled toy vehicle two variator structures according to claim 1, it is characterized in that, the structure of described clutch is with the pivot swing element that is pivoted, and an end of swing element is subjected to the element top of pulling, a top and pulls, and pulls a spring is set between element and the clutch body in the top.