JP2521797B2 - Unicycle - Google Patents

Description

TECHNICAL FIELD The present invention relates to a unicycle used for sports, entertainment and the like.

(Prior art) Recently, sports using unicycles have been attracting attention, and mainly for elementary school classes for the purpose of eliminating lack of stamina and obesity due to lack of exercise of children, training balance sense and reflexes, etc. They are actively incorporating unicycles into their club activities.

In a conventional unicycle, a saddle is provided on an upper portion of a hawk via a seat post, and a wheel is rotatably supported between a pair of left and right hawk legs on a lower portion of the hawk via a left and right crankshaft. However, a unicycle is not equipped with a stand that can stand on its own like a general bicycle.

(Problems to be solved by the invention) Conventionally, when a unicycle is displayed and displayed at a store, the unicycle itself does not have a self-standing stand, so it is necessary to provide a separate stand, which is troublesome and very troublesome. It was

In addition, when the unicycle is stored after being used by a child or the like, the unicycle is laid down sideways, a considerably large area is required, and the unicycle cannot be neatly stored and stored, which is very inconvenient.

The present invention has been made in view of the above circumstances, and provides a convenient unicycle that can easily stand by itself in a standing state and that is provided with a stand member that does not disturb the use. Is intended.

(Means for Solving the Problems) In order to achieve the above object, the present invention takes the following technical means.

That is, according to the present invention, the saddle 4 is provided on the upper portion of the hawk 1 via the seat post 5, and the wheel 6 is provided between the pair of left and right hawk legs 3 at the lower portion of the hawk 1 with the crankshaft 7 in the left-right direction.
In a unicycle rotatably supported via, a stand member 16 having a base 17 and a support leg 18 standing upright from the base 17 is attached to the hawk foot 3 rotatably around a horizontal axis 22, and Positioning and fixing means 26 for the stand member 16 is provided.

The positioning and fixing means 26 includes a locking body 19 having a ratchet engaging tooth portion 20 fixed to the upper ends of the support legs 18, a ratchet 27 attached to the hawk 1, and a ratchet pressing spring.
28, and the locking body 19 can be rotatably attached to the hawk foot 3 by the horizontal shaft 22.

Further, the lower end of the base 17 or the support leg 18 contacts the wheel 6 in the stand posture, and the wheel 6 is supported by the stand member.
It is preferable to be able to lock to 16.

(Operation) According to the present invention, when the stand member 16 is pivoted downward about the horizontal shaft 22 as a fulcrum, the stud member 16 is in a stand posture as shown in the drawing, and the unicycle stands on the ground with the wheels 6 grounded. The stand member 16 is supported by the member 16 in an upright state.
Is fixed to the hawk 1 by the positioning and fixing means 26, and the state is maintained. Further, the stand member 16 has a horizontal axis 22.
Rotate upward with the fulcrum as the fulcrum to attach the stand member 16 to the hawk 1
It is stored in the storage position by being brought as close as possible to the storage position, and is held in the storage state by the positioning and fixing means 26.

(Example) Hereinafter, the Example of this invention is described based on drawing.

1 to 4 show a first embodiment of the present invention, in which 1 is a hawk, which has a cylindrical hawk stem 2 in the upper portion and a pair of left and right hawk legs 3 in the lower portion. ing. Reference numeral 4 denotes a saddle, which is provided above the hawk stem 2 via a seat post 5 so as to be vertically adjustable.

Reference numeral 6 denotes a wheel, which is rotatably mounted between the lower portions of the pair of left and right hawk legs 3 via a crankshaft 7. That is, the hub cylinder 8 of the wheel 6 is fitted and fixed to the crankshaft 7,
Both ends of the crankshaft 7 are rotatably supported by bearings 10 on a shaft support 9 projecting from the lower ends of the pair of left and right forks 3.

Reference numeral 11 is a pair of left and right cranks, the base ends of which are fixed to the protruding portions of both ends of the crankshaft 7, and the pedals 12 are attached to the outer ends of both cranks 11.

The wheels 6 include the rim 13, the spokes 14, and the tires 15.
It has.

Reference numeral 16 denotes a stand member, a base 17, a pair of left and right support legs 18 provided upright from the base 17 so as to be located on both sides of the wheel 6, and a locking body 19 fixed to each upper end of the support leg 18.
And consists of. The support legs 18 are each bent inward so as to have a substantially U-shaped fixed portion with the base 17, and the U-shaped portions 18A come into contact with the tire 15 in the slanted posture of the unicycle. The wheel 6 is locked by the hawk 1 so as not to rotate.

The base 17 and the support legs 18 are made of metal rods,
It is welded and fixed.

The locking body 19 has a substantially hand-mirror shape with a ratchet engaging tooth portion 20 having a toothed ring shape, the upper end of the support leg 18 is fixed to the handle portion 19A, and the ratchet engaging tooth portion 20 has an axis centered on an arc. A hole 21 is provided and is rotatably attached to a mounting plate 23 via a horizontal shaft 22.

The mounting plate 23 has a shaft hole 24, and the shaft hole 24 is formed so as to be positioned above the crankshaft 7 and at the front or rear of the lower end of the hawk foot 3, and the screw 25 allows the hawk foot 3 to move. It is fixed to the outer surface of the shaft support 9 at the lower end.

Numeral 26 is a positioning and fixing means for attaching the stand member 16 to the hawk 1.
The ratchet 27 is engaged with the ratchet engaging tooth portion 20 of the locking body 19, and a ratchet pressing spring 28. Ratchet 27
The hawk foot 3 is rotatably attached to both outer side surfaces of the lower end of the hawk foot 3 by means of a screw 29, a spacing member 30, and a nut 31. The ratchet pressing spring 28 is composed of a coil spring, one end of which is fixed to the ratchet 27 and the other end of which is fixed to the mounting plate 23 (or the shaft supporting portion 9) by screws 32 and 33, respectively, so that the ratchet 27 is always ratchet engaging tooth portion. It is urged to press against 20.

Therefore, the stand member 16 is moved by the positioning and fixing means 26 so that the base 17 has the wheel 6 as shown in FIG.
The stand posture which is located below and is in contact with and locked to the hawk 1, the storage posture which is rotated upward as shown by a two-dot chain line 116 in the figure, and is brought close to the hawk 1 as shown in FIG. It can be changed to an intermediate position indicated by a chain double-dashed line 216 and fixed at that position.

34 is an engaging member, which is formed in a U shape by a spring plate material,
When the stand member 16 is placed in the retracted position, the hawk stem 2 is elastically sandwiched and held by the lower end of the support leg 18 (or the base 17), and when the stand member 16 is in the retracted posture, the stand member 16 is thereby held. It can be stored and held and can be freely engaged and disengaged. The engaging member 34 can securely hold the stand member 16 and is effective when the ratchet pressing spring 28 of the positioning and fixing means 26 is not provided, but when the ratchet pressing spring 28 is attached. The engaging member 34 can be omitted.

Further, the left-right length of the base 17 is made shorter than the left-right width of the saddle 4, and when the stand member 16 is stored, the base 17 fits within the left-right width of the saddle 4, which hinders the unicycle operation of a passenger. It is designed not to cause Further, it is preferable that a tubular slip stopper (not shown) made of an elastic material such as rubber or soft synthetic resin is fitted over the base 17, which is convenient when a passenger puts his / her foot on it.

5 and 6 show a second embodiment of the present invention,
Since the stand member 16 is different from the first embodiment in that the stand member 16 includes one support leg 18 and does not include the engaging member 34, the other configurations are the same as those in the first embodiment. 1
The same reference numerals as those in the embodiment are given and the detailed description is omitted. In addition,
The center portion of the base 17 is bent so as to contact the tire 15 in the stand posture so that the wheel 6 can be locked to the hawk 1. However, at the same time, it can be linear as shown by the chain double-dashed line 117.

FIG. 7 shows an essential part of a third embodiment of the present invention, which is different from the second embodiment in that the ratchet engaging tooth portion 20 formed on the locking body 19 is shown.
However, the second embodiment is the same as the second embodiment in that it is provided at two places and the stand member 16 is positioned and fixed only in the stand posture and the storage posture. Therefore, the same reference numerals as those in the first and second embodiments are given and detailed description thereof is omitted.

The stand member 16 may be provided on the front side or the rear side of the hawk 1.

(Effect of the invention) As described above, according to the present invention, the stand member 16 is attached to the hawk 1 of the unicycle, and the positioning fixing means 26 can position and fix the stand attitude and the storage attitude.
With the stand member 16 in the stand posture, the unicycle can be easily held by itself, which is very convenient not only for storing and storing the unicycle, but also for exhibitions, etc., but the storage space can be minimized. It can be placed in a relatively small space. In addition, the stand member 16 can be rotated upward and held in the storage posture, the stand member 16 does not interfere with the operation of the unicycle, and the passenger can rest his / her feet on the exterior. There is no loss of appearance.

Further, the positioning and fixing means 26 is constituted by the ratchet 27, the locking body 19 having the ratchet engaging tooth portion 20 and the pressing spring 28, so that the stand member 16 is fixed to the hawk 1.
It is possible to position and fix the hawk 1 at an arbitrary angle and hold the hawk 1 upright while tilted.

In addition, by bringing the base 17 of the stand member 16 into contact with the tire 15 in the stand posture, the wheels 6 can be locked to the hawk 1, and the unicycle can be more stably stood upright and leaned against the wall surface. It is convenient to place it.

[Brief description of drawings]

1 to 4 show a first embodiment of the present invention. FIG. 1 is an overall perspective view, FIG. 2 is an enlarged front view of essential parts, and FIG. 3 is a left side view of FIG. FIG. 4 is an enlarged cross-sectional view of a portion taken along the line AA in FIG. 3, FIGS. 5 and 6 are front and left side views of a main portion showing a second embodiment, and FIG. 7 is a third embodiment. It is a partially broken side view of the main part showing an example. 1 ... Hawk, 3 ... Hawk foot, 4 ... Saddle, 5 ...
Seatpost, 6 ... Wheels, 7 ... Crankshaft, 16 ...
Stand member, 17 ...... Base, 18 ...... Support leg, 19 ...... Locking body, 20 ...... Ratchet engaging tooth part, 22 ...... Horizontal axis, 23 ......
Mounting plate, 26 …… Positioning and fixing means, 27 …… Ratchet,
28 …… Ratchet pressure spring.

Claims (2)

(57) [Claims] 1. A saddle 4 is provided on an upper part of a hawk 1 via a seat post 5, and a wheel 6 is freely rotatable between a pair of left and right hawk legs 3 on the lower part of the hawk 1 via a crankshaft 7 in the left-right direction. In a supported unicycle, a stand member 16 having a base 17 and a support leg 18 standing upright from the base 17 is attached to the hawk foot 3 so as to be rotatable around a horizontal axis 22, and the stand member 16 is positioned and fixed. Means 26 are provided, and the positioning and fixing means 26 has a locking body 19 having a ratchet engaging tooth portion 20 fixed to the upper ends of the supporting legs 18.
And a ratchet 27 attached to the hawk 1 and a ratchet pressure spring 28, and the locking body 19 is provided on the side of the hawk foot 3 on the horizontal axis 22.
A unicycle, which is rotatably attached by. 2. The base 17 or the lower end of the support leg 18 is adapted to come into contact with the wheel 6 to lock the wheel 6 on the stand member 16 in a stand posture. Unicycle.