JPS6341040Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a toy helicopter that soars in the air.

This idea supports the aircraft, and by moving the wheels in contact with a flat surface, the aircraft's rotor blades rotate at high speed, and then the aircraft is released to let it soar into the air. The purpose was to provide a toy helicopter.

This invention will be explained below with reference to the drawings, which are examples of implementation. Reference numeral 1 denotes a bone-shaped fuselage body, which is injection molded from a synthetic resin material and includes a trunk portion 1a, a strut portion 1b, and a tail portion 1c. The body part 1a is formed into an annular egg-shaped shape imitating the passenger compartment, and there are bearing holes 2 on both outer sides that correspond to each other in upper and lower stages.
The bone-shaped bearing pieces 2, 2 provided with the bearing holes 2a, 2b are respectively placed, and in the lower bearing holes 2a, 2a, an axle 4 with wheels 3, 3 attached at both ends and a spur gear 5c attached in the middle is inserted. Rotatably supported, the upper stage bearing hole 2b,
2b has a pinion 5b that meshes with the spur gear 5a.
and supports an intermediate shaft 51 that parallels the crown gear 5c.

The pillar part 1b has two pillars erected from the upper edge of the body part 1a, which correspond to the front and back, and are vertically elongated, and a transmission shaft 6 is attached to the connecting part connecting the top ends of the pillars and the upper edge of the body part.
Bearing holes 9, 9 are provided.

A pinion 5b attached to the lower end of the transmission shaft 6 is meshed with the crown gear 5c, and the rotational speed-up drive is made up of the spur gear 5a on the axle 4, the pinion 5b on the intermediate shaft 51, and the crown gear 5c. The transmission shaft 6 and the axle 4 are related to each other by the portion 5 . A rotary blade 8 whose outer periphery is formed by an inertia ring 7 is attached to the upper end of this transmission shaft. The rotor blade 8 is disposed apart from the body part 1a by a required height above the body part 1a by means of a vertically elongated support part 1b.

The tail portion 1c protrudes behind the body portion 1a, and has a lower edge shaped like a sled.

Incidentally, mounting holes 10 for the bearing pieces 2 are provided in the body portion 1a. Also, the boss 8a of the rotor blade 8 has a square hole 8.
A square head 6a integrally attached to the upper end of the transmission shaft 6 is fitted into the hole b, and a screw shaft 6b further protrudes from the upper end.
A nut 6d is screwed onto the rotary blade 8 with a washer 6c interposed therebetween, and the rotary blade 8 is removably fixed to the transmission shaft 6. Covers 11, 11 are attached to the inside of each bearing piece 2, respectively, to protect the speed increasing drive unit 5 from the outside.

This invention is as described above, so the wheels 3, 3 are pressed against a flat surface such as a floor surface by the tail part 1c and moved forward, the wheels 3, 3 are rotated, and the wheels 3, 3 are moved forward to the speed increasing drive unit 5. The aircraft then increases its speed and rotates the rotor blades 6 at high speed, and when lift is obtained, the aircraft is released and flies into the air with great force. When the rotor blade 8 decelerates due to air resistance, it loses lift and falls.

As mentioned above, this idea has a bone-like body made of synthetic resin with vertically elongated struts and a rearwardly protruding tail connected to the body. A bone-shaped bearing piece corresponding to the bearing hole is attached, and the axle and related speed-increasing drive unit are installed, so the whole thing has the feel of a helicopter, and the whole thing is lightweight and robust. This allows the aircraft to move and rotate its rotor blades at high speed. In addition, since the struts of the aircraft are vertically elongated, the rotor blades installed at the upper end can be sufficiently separated from the fuselage and tail, making it safe when rotating with the rotor blades. If you support it so that it is tilted and move it, you can fly it up in the direction of its movement without danger.

As mentioned above, the aircraft moves, rotates the wheels, rotates the related rotor blades vigorously, and jumps up into the air, which is similar to a real aircraft and has a realistic feel in terms of operation. It is something you can play with.

[Brief explanation of the drawing]

Figure 1 is a perspective view of this invented helicopter toy.
Figure 2 is a partially cutaway side view, Figure 3 is Figure 2A-
A cross-sectional view along line A, Figure 4 is a side view of the fuselage, Figure 5 is a side view of the aircraft.
The figure is a side view of the bearing piece. 1... fuselage, 1a... body, 1b... strut,
1c...tail part, 2...bearing piece, 3, 3...wheel, 5...speed-increasing drive section, 6...transmission shaft, 7...inertia ring, 8...rotor blade.

Claims (1)

[Scope of utility model registration request] An annular body part 1a imitating a crew compartment, an elongated support part 1b connected to the upper part of the body part to support the rotor above the body part, and a tail part 1 connected to the rear part to serve as a handle.
A skeleton body 1 made of a synthetic resin material is integrally molded with c, and on both outsides of the body 1a of the body,
The bone-shaped bearing pieces 2, 2 provided with mutually corresponding bearing holes 2a, 2b in two stages, upper and lower, are passed over, respectively, and the wheels 3, 3 are mounted.
an axle 4 with a spur gear 5a attached at both ends and a spur gear 5a in the middle.
and an intermediate shaft 51 on which a pinion 5b meshing with the spur gear 5a and a crown gear 5c are mounted in parallel, are supported by the bearing holes 2a and 2b, respectively, and a rotational speed-up drive unit 5 is disposed in the body portion 1a. , the crown gear 5c is meshed with a pinion 5d attached to the lower end of a transmission shaft vertically supported on the support 1b, and a rotor 8 having an inertia ring 7 on the outer periphery is attached to the upper end of the transmission shaft 6. A helicopter toy featuring