JPS5921830Y2 - helicopter toy - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a toy helicopter, and more particularly to a toy helicopter configured to run on the floor, rotate a rotor, and at the same time make intermittent U-turns.

Hereinafter, details of the present invention will be explained along with embodiments shown in the drawings.

Figure 1 explains the whole of the toy helicopter of the present invention. In the figure, the toy helicopter main body, which is designated as a whole by reference numeral 1, is assembled based on a hollow body part 2 that is divided into left and right parts and combined. .

A mainspring unit 3 is housed inside the body 2, as shown in an enlarged view in FIG.

Although not shown in the figure, this mainspring unit 3 houses a mainspring and a plurality of gears that sequentially mesh with gears fixed to its output shaft, and the output shaft of each gear can be taken out to the outside and It is possible to extract it as an output having a reduction ratio of .

A drive shaft 4 is provided at the bottom of the mainspring unit 3, and drive wheels 5 are fixed to both ends of the drive shaft 4, respectively.

The drive shaft 4 passes through the body 2 and faces outward, and is connected to the drive wheel 5.
is located outside the body 2.

A crown gear 6 is fixed in the middle of the drive shaft 4, and is meshed with a crown gear 8 fixed to the lower end of a rotating shaft 7 rotatably supported in the body 2.

A pinion gear 9 is fixed to the upper end of the rotating shaft 7, and this pinion gear 9 is fixed to the lower side of the center part of the rotor 10.
It meshes with a gear 12 fixed to the lower end of a rotating shaft 11 inserted into the interior of the body 2 .

On the other hand, a shaft 13 is horizontally protruded from the upper end of the mainspring unit 3, and the upper end of a swing lever 14 is rotatably supported at the tip of the shaft 13.

This rotating lever 14 is formed into a substantially C-shape, and its lower end forms a continuous protruding piece 14a, which extends from the bottom surface of the body 2 and from the center line, as shown in FIG. It faces into the elongated hole 2a formed at a shifted position.

A screw spring 15 is wound around the shaft 13, one end 15a of which is locked to a part of the body 2, and the other end 15a
5b is locked to a locking piece 14b protruding from the inner surface of the lower part of the rotating lever 14, and has a habit of always rotating counterclockwise about the shaft 13 in FIG. 2 with respect to the rotating lever 14. is giving.

On the other hand, an output shaft 16 is protruded from the side surface of the mainspring unit 3 on the rotating lever 14 side, and a diamond-shaped cam 17 provided at the tip thereof is in contact with the inner edge of the rotating lever 14 .

The side edge of this cam 7 in the long diameter direction is connected to the rotating lever 14.
When the rotary lever 14 comes into contact with the inner edge of the rotary lever 14, the rotary lever 14 is rotated clockwise in FIG. .

Reference numeral 18 indicates a mainspring winding knob, and reference numeral 19 indicates an auxiliary wheel.

Next, the operation of this embodiment configured as above will be explained.

First, when the mainspring winding knob 18 is turned to fully wind the mainspring and the helicopter toy main body 1 is placed on the floor, the drive shaft 4 and the cam 17 are rotated by the unwinding force of the mainspring, and the helicopter toy main body 1 is rotated by the unwinding force of the mainspring. is driven straight by the drive wheels 5, 5 and the auxiliary wheels 19.

At the same time, the rotation of the cam 17 causes the rotation lever 14 to rotate clockwise about the shaft 13 in FIG.
When the side edge of the long diameter direction comes into contact with the inner edge of the rotary lever 14, the projecting piece 14a is projected downward from the elongated hole 2a to the maximum extent possible.

As a result, the drive wheel 5 on the protrusion 14a side lifts up, and the toy helicopter main body 1 rotates in a circle around the protrusion 14a due to the rotation of the other drive wheels that are in contact with the ground.
Make a U-turn.

Then, as the rotation of the cam 17 progresses and its longer diameter side edge separates from the inner edge of the rotating lever 14, the rotating lever 1
4 is rotated counterclockwise around the shaft 13 in FIG. 2, the protruding piece 14a leaves the floor surface, and the toy helicopter main body 1 starts moving straight.

During this time, the rotor 10 continues to rotate via the crown gear 6.8.

Thereafter, the same operation is repeated, and the helicopter toy main body 1 intermittently repeats U-turns and straight ahead, performing dizzying and greatly changing movements.

As is clear from the above explanation, according to the present invention, it is possible to repeatedly go straight and make U-turns while rotating the rotor,
Its movements are large and rapid, and it creates great interest in the viewer.

[Brief explanation of drawings]

The drawings are for explaining one embodiment of the present invention, in which FIG. 1 is an overall perspective view, FIG. 2 is a perspective view of the drive mechanism, and FIG. 3 is a bottom view. 1...Helicopter toy body, 2...Body part, 3...Spring unit, 4...
Drive shaft, 5... Drive wheel, 6°8... Crown gear, 7, 11... Rotating shaft, 10...
... Rotor, 14... Rotating lever, 14a.
... Protruding piece, 15 ... Torsion spring, 17.
...Cam, 19...Training wheel.

Claims (1)

[Scope of utility model registration request] A hollow body shaped like a helicopter, a spring unit housed in this body, a drive shaft protruding from the bottom of this spring unit, and a drive fixed to this drive shaft on the outside of the body. a wheel, a rotor that rotates in conjunction with the drive shaft, and a projecting piece that is rotatably supported on the side of the mainspring shaft, is intermittently rotated by a cam, and synchronously projects downward from the drive wheel. A helicopter toy characterized by comprising: a rotating lever having a rotating lever;