JP3076341U - Drive control device - Google Patents

Abstract

(57) [Problem] To provide a drive control device capable of converting between forward and backward by simple switching of a gear mechanism. A transmission shaft (11) is provided with a polygonal shaft (111), and both ends of the transmission shaft (11) are connected to front wheels or rear wheels, respectively. A fixed gear 13 is attached to the transmission shaft 11, and the fixed gear 13 is provided with an external gear 131 and an internal gear 132. The fixed gear 13 is fitted with the driven gear 12, the driven gear 12 is fitted with the driving gear 31, and the driving gear 3
1 is connected to the engine 3. The movable gear 14 is attached to the polygon shaft 111, and the movable gear 14 is
Can freely move in the axial direction. The teeth of the movable gear 14 can be fitted with the internal teeth 132 of the fixed gear 13. The first idle gear 15 is an external tooth 131 of the fixed gear 13.
And the second idle gear 16 is engaged with the first idle gear 15. When the movable gear 14 moves from the inner diameter side of the fixed gear 13, the second idle gear 16 can be engaged with the second idle gear 16.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a drive control device, and more particularly to a drive control device for performing forward or backward drive control of a remote-controlled toy car.

[0002]

[Prior art]

 The forward and reverse transmission mechanisms of a traditional toy car with a gasoline engine belong to different systems. In other words, when the vehicle moves forward, the forward transmission system is started to drive the wheels forward. If you want to reverse, stop the forward drive system and switch to the reverse drive system.

[0003]

[Problems to be solved by the invention]

 However, such a structure complicates the structure of the toy car as a whole, increases the volume, increases the weight, and increases the manufacturing cost. This requires more gasoline to be consumed, and cannot improve agility. Therefore, a main object of the present invention is to provide a drive control device capable of converting between forward and backward movements by simply switching gear mechanisms.

[0004]

[Means for Solving the Problems]

 According to the drive control device according to the first aspect of the present invention, the transmission shaft having a polygonal shaft having a predetermined length, the external teeth fixed to the transmission shaft and disposed on the outer peripheral portion and the inner peripheral portion are provided. A fixed gear having internal teeth provided therein, a movable gear mounted movably on a polygonal shaft and capable of fitting with the internal teeth of the fixed gear, and a first play fitted with the fixed gear. A gear, a second idle gear that can be fitted with the first idle gear and the movable gear, and a connecting rod connected to the movable gear, wherein the movable gear is any one of the internal teeth of the fixed gear and the second idle gear. And a servo mechanism for driving the movable gear on the polygonal shaft so as to be fitted.

[0005]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a drive control device 1 according to the present embodiment has a transmission shaft 11 provided with a polygonal shaft 111 having an appropriate length, and both ends of the transmission shaft 11 are respectively connected to a front wheel system and a rear wheel of a toy car. It is connected to a system (not shown in the drawing). The transmission shaft 11 is attached to a bearing and can rotate freely.

A fixed gear 13 is attached to the transmission shaft 11, and the fixed gear 13 and the transmission shaft 11 can be relatively rotated by exhibiting a loose combination. The fixed gear 13 is provided with an outer gear 131 arranged on the outer periphery and an inner gear 132 arranged on the inner periphery.

The fixed gear 13 is fitted with the driven gear 12, the driven gear 12 is further fitted with the drive gear 31, and the drive gear 31 is connected to the engine 3. A movable gear 14 is mounted on the polygon shaft 111 of the transmission shaft 11, and the movable gear 14 can freely move in the axial direction on the polygon shaft 111. However, the movable gear 14 cannot rotate relative to the transmission shaft 11 under the influence of the combination of the polygonal shaft 111 and the polygonal hole of the movable gear 14. The teeth distributed on the outer diameter of the movable gear 14 can be fitted inside the fixed gear 13 and fitted with the inner teeth 132.

In this embodiment, a first idler gear 15 and a second idler gear 16 are additionally provided, the first idler gear 15 is fitted with the external teeth 131 of the fixed gear 13, and the second idler gear 16 is When the movable gear 14 is engaged with the first idle gear 15 and moves from the inner diameter side of the fixed gear 13, the movable gear 14 can be engaged with the second idle gear 16.

In this embodiment, the servo mechanism 2 is provided, and the swing mechanism 21 is provided on the servo mechanism 2, and the swing mechanism 21 is pivotally connected to the first connecting rod 22, and the first connecting rod 22 is pivotally connected to the first connecting rod 22. The rod 22 is further connected to a second connecting rod 23, and the second connecting rod 23 is connected to the movable gear 14.

According to the above-described structure, the servo mechanism 2 is operated by the remote controller, the swinging arm 21 swings, the first and second connecting rods 22 and 23 swing, and the second connecting rod 23 is movable. The gear 14 is driven to move axially on the polygonal shaft 111.

When the movable gear 14 is switched to the state shown in FIGS. 2 and 3, the driving gear 31 driven by the engine 3 drives the driven gear 12 to rotate, and the driven gear 12 turns the fixed gear 13. Drive to rotate forward. The fixed gear 13 further drives the first idler gear 15 to rotate in the reverse direction, the first idler gear 15 rotates the second idler gear 16 in the forward direction, the second idler gear 16 further rotates the movable gear 14 in the reverse direction, The movable gear 14 performs a reverse operation by driving the transmission shaft 11 to rotate in the reverse direction.

When the movable gear 14 is switched to the state shown in FIG. 4, the fixed gear 13 is driven by the driven gear because the teeth of the movable gear 14 are already fitted to the internal teeth of the fixed gear 13. As a result, the internal gear 132 drives the movable gear 14 to rotate forward. Further, the movable gear 14 drives the transmission shaft 11 to rotate forward, and the toy car moves forward. In this case, the first and second idler gears 15 and 16 are idle.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a drive control device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the drive control device according to the embodiment of the present invention, showing a retracted state;

FIG. 3 is a side view of FIG. 2;

4 is a diagram showing a state in which the drive control device shown in FIG. 2 has been switched to a forward state.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 drive control device 2 servo mechanism 3 engine 11 transmission shaft 12 driven gear 13 fixed gear 14 movable gear 15 first idle gear 16 second idle gear 22, 23 connecting rod 31 drive gear 111 polygonal shaft 131 external teeth 132 internal teeth

Claims (1)

[Utility model registration claims] 1. A fixed shaft having a transmission shaft having a polygonal shaft of a predetermined length, fixed to the transmission shaft, and having external teeth disposed on an outer peripheral portion and internal teeth disposed on an inner peripheral portion. A gear, a movable gear that is movably mounted on the polygonal shaft, and that can be fitted to the internal teeth of the fixed gear, a first idle gear that is engaged with the fixed gear, a first idle gear, A second engageable with the movable gear;
A play gear; and a connecting rod connected to the movable gear, wherein the movable gear is formed into the polygon so that the movable gear fits into either the internal teeth of the fixed gear or the second play gear. A drive control device comprising: a servo mechanism driven on a shaft.