JPH07100464B2 - 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 part of a hawk via a seat post, and a wheel is rotatably supported between a pair of left and right hawk legs on the lower part of the hawk via a crank shaft in the left-right direction. However, the unicycle is not equipped with a stand that can stand by itself, as is the case with ordinary bicycles.

(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

Also, when storing a unicycle after children have used it,
Since the unicycle was laid down sideways, it required a considerably large area and could not be stored and stored in an orderly manner, which was very inconvenient.

The present invention has been made in view of the above circumstances,
An object of the present invention is to provide a convenient unicycle equipped with a stand member that can be easily self-supported in a standing state and does not interfere with driving.

(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 seat post 5 is provided on the upper portion of the hawk 1.
In a unicycle in which a saddle 4 is provided via a wheel, and wheels 6 are rotatably supported between a pair of left and right hawk legs 3 below the hawk 1 via a crankshaft 7 in the left-right direction. Standing pair of left and right support legs 18
A stand member 16 having a rotatably mounted on the hawk foot 3 about a horizontal axis 28, and a base 17 has a fixed portion 17A fixed to a support leg 18 and a movable portion 17B bendably attached to the fixed portion 17A.
It is characterized in that the fixing portion 17A is provided with an engaging member 19 for the hawk 1.

(Operation) According to the present invention, the movable portion 17B of the base 17 is laid down to fix the fixed portion 1
When the stand member 16 is rotated downward around the horizontal axis 28 after being flush with the ground (floor) surface 22 of the 7A, the base 17 of the stand member 16 is grounded (or landed), as shown in the figure. The unicycle is in the stand posture, and the unicycle is supported upright with the wheels 6 separated from the ground (or the floor), and the stand member 16 is positioned and fixed to the hawk foot 3 to maintain the posture. Further, the stand member 16 rotates upward about the horizontal axis 28, and the engaging member 19 provided on the fixing portion 17A of the base 17 is engaged and fixed to the hawk 1, so that the stand member 16 can be brought into a housed state. Moving part 17B
Can be raised and locked to the hawk 1 so as not to get in the way during driving.

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

In the drawings, reference numeral 1 denotes 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. 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,
A hub cylinder 8 of a wheel 6 is fitted and fixed to a crankshaft 7, and both ends of the crankshaft 7 are rotatably supported by bearings 10 on a shaft support portion 9 projecting from the lower ends of a pair of left and right hawk legs 3. Has been done.

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 wheel 6 includes a rim 13, a spoke 14, and a tire 15.

Reference numeral 16 denotes a stand member, which includes a base 17 including a fixed portion 17A and a movable portion 17B, and a pair of left and right support legs 18 provided on the base fixed portion 17A so as to stand upright and on both sides of the wheel 6. . The base fixing portion 17A has a groove shape that opens upward when viewed from above, and is fixed so that the engaging member 19 to the hawk stem 2 having a spring property of approximately Ω when viewed from above between both ends opens to the end side. The bottom side of the movable portion 17B, which has a substantially trapezoidal shape when seen in a plan view, is connected to the opposite side of the engaging member 19 by a hinge 20 so as to be bendable (retractable). An upward projecting bulge 21 is formed in which the projecting amount increases in sequence from the center of the bottom side to the center of the upper side of the movable base portion 17B.
The concave portion formed at the end on the 22 side is used as an engaging portion 23 for the hawk stem 2 or the seat post 5.

The lower end of the support leg 18 is fixed to the connecting portion 25 of the base fixing portion 17A with a tack 24.

Further, the support leg 18 is provided with an axial hole 26 at the upper end,
On the protrusion of the dharma-shaped mounting plate 27 fixed to the shaft support 9,
It is rotatably attached via a horizontal shaft 28 fitted in the shaft hole 26. An engaging recess 29 is provided on the side of the mounting plate 27, and an engaging protrusion 30 is provided on the opposing surface of the support leg 18 correspondingly, so that positioning and fixing can be performed in the stand posture and the storage posture of the stand member 16. You can do it.

According to the above-described embodiment, when the stand posture is first set, the stand member 16 is brought down by moving the base movable portion 17B.
After making the contact surface 22 and the ground surface 22 flush with each other, when the base 17 is rotated downward about the horizontal axis 28, the base 17 is grounded (or landed), and as shown in the drawing,
In the unicycle, the wheels 6 are separated from the ground or the like and are supported in an upright state to be in a stand posture, the engaging protrusions 30 and the engaging recesses 29 are engaged, and the stand member 16 is attached to the hawk through the mounting plate 27 and the shaft support 9. Since the base 17 is positioned and fixed to the foot 3 and has a large area such as the ground contact with the base 17, the unicycle is stably supported and its posture is maintained.

Also, when storing the stand member 16,
16 is rotated upward about the horizontal axis 28 so that the engaging member 19 of the base fixing portion 17A is fitted and engaged with the hawk stem 2, and the base movable portion 17B is bent and erected upward so that the engaging portion 23 By fitting and engaging with the hawk stem 2, the storage posture can be obtained. In this storage posture, since the movable portion 17B of the base 17 is erected, it does not interfere with driving, and the engaging projection 30 is fitted into the engaging concave portion 29 to be positioned and fixed.

The positioning and fixing means of the stand member 16 to the hawk foot 3 in the above embodiment is not limited to this, and other engaging means can be adopted.

(Effect of the invention) As described above, according to the present invention, the saddle 4 is provided on the upper part of the hawk 1 via the seat post 5, and the wheel 6 is arranged in the left-right direction between the pair of left and right hawk legs 3 below the hawk 1. In a unicycle rotatably supported via the crankshaft 7, a stand member 16 having a base 17 and a pair of left and right support legs 18 standing upright from the base 17 is rotatable around a horizontal axis 28 on the hawk foot 3. The base 17 includes a fixed portion 17A fixed to the support leg 18 and a movable portion 17B bendably attached to the fixed leg 17A. The fixed portion 17A is provided with an engaging member 19 for the hawk 1. Therefore, the stand member 16 can be placed in a stand posture to easily hold the unicycle on its own, and since the ground contact area of the base 17 can be increased, the stance of the unicycle can be stably maintained. Storage and storage Of it is very convenient to the exhibition, etc., yet can also be placed in a relatively small place as it can to minimize the unicycle of the storage location. Further, since the stand member 16 can be rotated upward and held in the storage posture, and the base movable portion 17B can be erected along the hawk stem 2, the stand member 16 does not become an obstacle when driving the unicycle, It does not spoil the appearance.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is an overall perspective view, FIG. 2 is a partially omitted enlarged front view, FIG. 3 is a left side view of FIG. 2, and FIG. 4 is a stand member. Partially omitted enlarged perspective view,
FIG. 5 is an enlarged sectional view showing an example of the positioning and fixing means of the support leg. 1 ... Hawk, 3 ... Hawk leg, 4 ... Saddle, 5 ... Seatpost, 6 ... Wheel, 7 ... Crankshaft, 16 ... Stand member,
17 ... Base, 17A ... Fixed part, 17B ... Movable part, 18 ... Support legs,
19 ... Engaging member.

Claims (1)

[Claims] 1. A seatpost (5) on top of a hawk (1).
A saddle (4) is provided via a wheel, and a wheel (6) is rotatably supported between a pair of left and right hawk legs (3) below the hawk (1) via a left and right crankshaft (7). In a unicycle, a stand member (16) having a base (17) and a pair of left and right support legs (18) standing upright from the base (17) is rotatable around a horizontal axis (28) around a hawk leg (3). The base (17) is composed of a fixed part (17A) fixed to the support leg (18) and a movable part (17B) flexibly attached to the fixed part (17A). 1) Engagement member (1)
9) A unicycle characterized by being provided.