JPS638552Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of a unicycle.

A conventional unicycle is a vertical pipe with a saddle attached to the top end, and a wheel with pedals supported by a pair of hawk legs attached to the bottom end of a vertical pipe.It is interesting to ride as there is no handlebar operation required. However, on the other hand,
Difficult to balance, safety issues,
Additionally, the lack of a chain caused problems such as excessive fatigue caused by running.

The present invention has been completed with the aim of creating a unicycle that solves the above-mentioned problems, and the illustrated embodiment will be described in detail below.

Reference numeral 1 denotes a frame, and the frame 1 has a forward-facing pipe part 2 at its intermediate part, and a hawk leg 5 extending rearward and obliquely downward from the upper part of a main pipe 4 with a downward-facing front leg pipe part 3 continuing therefrom. , a hanger lug 19 provided on the lower side of the forward-facing pipe portion 2 of the frame 1 and the lower end of the fork leg 5 are connected with a chain stay 23, and a saddle 7 is attached to the upper end of the main pipe 4; The gear 20 of the gear crank 18 is pivotally supported by the gear 20, and the gear 2 of the large diameter wheel 6 is pivotally supported by the lower end of the fork leg 5.
A chain 22 is suspended between the auxiliary wheels 1 and 1, and a small-diameter auxiliary wheel 1 is attached to both ends of the downward front leg tube 3.
2 is mounted on an axle 13 which is pivotally supported. In addition,
Reference numeral 9 denotes an axle 13 on which the small-diameter auxiliary vehicle 12 is supported.
This is an auxiliary vehicle mounting plate that is attached to the front landing gear tube section 3 in order to attach the vehicle to the lower end of the downward facing front landing gear tube section 3.The rear portion of the lower surface of the auxiliary vehicle mounting plate 9 has a short column-shaped elastic member made of soft synthetic resin or synthetic rubber. A body 10 is attached with a bolt 11 inserted through its center, and an axle 13 is tensioned on the elastic body 10 with a branch part 14, and the elasticity of the elastic body 10 allows the auxiliary vehicle 12 to move. The direction can be changed to either the left or right depending on the inclination of the wheels 6. 16 is the axle 13
The support leg 16 is a wedge-shaped support leg erected on the upper side, and the support leg 16 supports the lower surface of the mounting plate portion 9 via an elastic receiving portion 17 with its pointed end.

With this structure, if you sit on the saddle 7 attached to the upper end of the main pipe 4 of the frame 1 and step on the pedal of the gear crank 18, the lower part of the forward-facing pipe part 2 of the main pipe 4 of the frame 1 will be moved. A gear 20 of a gear crank 18 is pivotally supported on a hanger lug 19 provided on the side, and a gear 21 of a large-diameter wheel 6 is pivotally supported on the lower end of a hawk leg 5 extending diagonally downward from the upper part of the main pipe 4. The large-diameter wheels 6 are rotated on the ground by the drive of the chain 22 suspended between them. The small-diameter auxiliary vehicle 12, which is pivoted at both ends, can also run by following ground contact, but in this case, the ground-following of the small-diameter auxiliary vehicle 12 stabilizes the vehicle body so that it can be balanced even at low speeds. It does not easily collapse, and even beginners can ride it safely. However, since the rotation of the large-diameter wheel 6 is driven by the chain 22, the pedal of the gear crank 18 can be pressed in a motion similar to that of riding a normal bicycle, even though there is no handlebar, which causes special fatigue. It's nothing.
In addition, once you are proficient in riding, you can sit on the saddle 7 and put your weight backwards to drive the small diameter auxiliary vehicle 12 slightly off the ground. In this case, a hawk leg 5 extends backward obliquely downward from the upper part of the main pipe 4, and the lower end of the hawk leg 5 and the frame 1
The chain stay 23 connected to the hanger lug 19 provided on the lower side of the forward-facing tube portion 2 of the unicycle can sufficiently bear the weight of the large-diameter wheel 6, making the unicycle feel similar to a conventional unicycle. It can be ridden, and the main pump 4 is made of a series of strong curved pipes with a forward-facing pipe part 2 in the middle and a downward-facing front leg pipe part 3. There is no risk of damage easily even if the riding position of the vehicle is repeated in a rough manner, such as traveling with the vehicle off the ground or changing its position and traveling with the vehicle on the ground.

As is clear from the description of the above embodiments, the present invention is a unicycle that can be ridden safely and with less fatigue, is strong and has no risk of damage, and has extremely great practical value. be.

[Brief explanation of the drawing]

The drawing is a partially cutaway side view showing an embodiment of the present invention. 1: Frame, 2: Forward-facing tube, 3: Downward front leg tube, 4: Main pipe, 5: Hawk legs, 6: Large diameter wheel, 7: Saddle, 12: Small diameter auxiliary vehicle, 1
3: Axle, 18: Gear crank, 19: Hanger lug, 20: Gear, 21: Gear, 22: Chain,
23: Chainstay.

Claims (1)

[Scope of utility model registration request] The frame 1 is provided on the lower side of the forward-facing tube section 2 of the frame 1, which has a forward-facing tube section 2 at its intermediate portion, and a main pipe 4, which is followed by a downward-facing front leg tube section 3. A hawk leg 5 extends rearward diagonally downward from the upper part of the main pipe 4. The hanger lug 19 and the lower end of the fork leg 5 are connected with a chain stay 23, and a saddle 7 is attached to the upper end of the main pipe 4, and the gear 20 of the gear crank 18 pivotally supported on the hanger lug 19 and the fork leg 5 are connected. A chain 22 is suspended between a gear 21 of a large-diameter wheel 6 that is pivotally supported at the lower end, and a small-diameter auxiliary wheel 12 is pivotally supported at both ends of the lower end of the downward front leg tube section 3. A unicycle equipped with an axle 13.