JPH02128981A - Wheel barrow - Google Patents

Abstract

PURPOSE:To provide an easy-to-use self-standing stand of a wheel barrow by pivoting a left and a right stand member on a left and a right fork foot in such a way as possible to swing round a horizontal shaft, and providing the base of each stand member with a fixation part having a detent member for detention with a fork. CONSTITUTION:Each stand member 16 to be fitted to a wheel barrow is composed of a 17 consisting of a stationary part 17A and a movable part 17B and a left and a right supporting leg 18 which are installed rising from this stationary part 17A and situated on the sides of the wheel 6 in such a way as swingable round a horizontal shaft 28. At the stationary part 17A of the base a detent member 19 to a resilient fork stem 2 approx, in OMEGA-form in the plan view is fixed between the two ends so as to open toward the ends. On the outside opposite to this detent member 19 the movable part 17B is coupled by a hinge 20 in approx. trapezoidal form in the plan view with practicability of being bent, and in this movable part 17B of base a swollen part 21 is formed whose amount of protrusion increases one by one, and a recess provided at the end on the grounding surface 22 side shall serve as a detent 23 with the fork stem 2.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a unicycle used for sports, entertainment, etc.

(Conventional technology) Recently, sports using wheeled wheels have attracted attention, and are being used mainly in elementary schools to relieve children's lack of stamina and obesity caused by lack of exercise, and to develop their sense of balance and reflexes. Unicycles are being actively incorporated into classes and club activities.

In a conventional unicycle, a saddle is provided at the upper part of the hawk via a seat post, and a wheel is rotatably supported between the left and right pairs of hawk legs at the lower part of the hawk via a left-right crankshaft. However, the -wheeled bicycle is not equipped with a stand that can stand on its own as the -11JB bicycle is equipped with.

(Problems to be Solved by the Invention) Conventionally, when displaying a wheeled vehicle at a store, since the wheeled vehicle itself was not equipped with an independent stand, it was necessary to provide a separate stand, which was very time-consuming and time-consuming. It was a hassle.

Also, when storing the wheeled wheel after children have used it,
-The wheeled vehicle was placed on its side, requiring a fairly large area, making it impossible to store and store it in an orderly manner, which was very inconvenient.

The present invention was made in view of the above-mentioned circumstances, and
To provide a convenient unicycle that can easily stand on its own in an upright state and is equipped with a stand member that does not get in the way when driving.

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

That is, the present invention provides a seat post 5 on the upper part of the hawk 1.
A unicycle in which a saddle 4 is provided via a base 17 and a wheel 6 is rotatably supported between a pair of right and left hawk legs 3 at the bottom of the hawk 1 via a left and right crankshaft 7. A stand member 16 having a pair of upright left and right support legs 18 is attached to the hawk leg 3 so as to be rotatable around a horizontal axis 28, and the base 17 is attached to a fixed portion 17A fixed to the support legs 18 and can be bent thereto. The movable part 17B is attached to the hawk 1, and the fixed part 17A is provided with an engaging member 19 for engaging the hawk 1.

(Function) According to the present invention, after the movable part 17B of the base 17 is brought down and flush with the ground (floor) surface 22 of the fixed part 17A, the stand member 16 is rotated downward about the horizontal axis 28. , the base 17 of the stand member 16 touches the ground (or lands on the floor) and assumes a stand position as shown in the figure; 16 is positioned and fixed to the hawk leg 3 and its posture is maintained. Further, the stand member 16 can be put into the stored state by rotating upward around the horizontal axis 28 and engaging and fixing the engaging member 19 provided on the fixed part 17^ of the base 17 to the hawk 1. , the movable part 17B can be made to stand up and be locked to the hawk 1, so that it does not get in the way during driving.

(Example) Embodiments of the present invention will be described below based on the drawings.

In the drawings, reference numeral 1 denotes a hawk, which has a cylindrical hawk stem 2 at its upper part and a pair of left and right hawk legs 3 at its lower part. Reference numeral 4 denotes a saddle, which is provided on the upper part of the Hawk stem 2 via the seat post 5 so as to be vertically adjustable.

Reference numeral 6 denotes a wheel, which is rotatably attached via a crankshaft 7 between the lower portions of the pair of left and right hawk legs 3. That is,
A hub cylinder 8 of a wheel 6 is fitted and fixed to the crankshaft 7, and both ends of the crankshaft 7 are rotatably supported via bearings 10 on shaft supports 9 protruding from the lower ends of the pair of right and left hawk legs 3. has been done.

Reference numeral 11 denotes a pair of left and right cranks, the base ends of which are fixed to protrusions at both ends of the crankshaft 7, and the pedals 1 are attached to the outer ends of both cranks 11.
2 is installed.

Note that the wheel 6 includes a rim 13, spokes 14, and tire 1.
5.

Reference numeral 16 denotes a stand member, which includes a base 17 consisting of a fixed part 17A and a movable part 17B, and a pair of left and right support legs 18 provided upright on the base fixed part 17A and positioned on both sides of the wheels 6. . The base fixing portion 17A has an upwardly opening groove shape when viewed from above, and has an engagement member 19 for the Hawk stem 2 which has a substantially Ω-shaped spring characteristic between both ends when viewed from above.
is fixed so as to open toward the end side, and a movable part 17 having a substantially trapezoidal shape when viewed from a plane is provided on the outside opposite to the engaging member 19.
The bottom side of B is connected by a hinge 20 so that it can be bent (raised and folded).

From the center of the bottom side to the center of the top side of the base movable part 17B,
An upwardly protruding bulge 21 is formed whose protrusion amount increases sequentially, and a recess formed at the end on the ground plane 22 side serves 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 base fixing portion 17A by a stud 24.
It is fixed to the connecting part 25 of.

Further, each of the support legs 18 is provided with a shaft hole 26 at its upper end, and is rotated through a horizontal shaft 28 fitted into the shaft hole 26 on a protrusion of a daruma-shaped mounting plate 27 fixed to the shaft support 9. It is mounted so that it can move freely. An engagement recess 29 is provided on the mounting plate 27 side, and an engagement protrusion 30 is provided on the opposing surface of the support leg 18 in correspondence with this, and the positioning and fixing of the stand member 16 is performed in the stand position and the storage position. Now you can do it.

According to the above embodiment, when first taking the stand position, the stand member 16 is rotated downward around the τ horizontal axis 28 after the base movable part 17B is brought down so that the fixed part 17A and the ground plane 22 are flush with each other. , the base 17 is grounded (or landed),
As shown in the figure, the wheels 6 of the wheeled vehicle are separated from the ground, etc., and are supported in an upright position to take a stand position, and the engagement protrusion 30 and the engagement recess 29 engage, and the stand member 16 is attached to the mounting plate 2.
7. Positioned and fixed to the hawk foot 3 via the shaft support 9,
Since the ground contact area of the base 17 is large, the wheeled vehicle is stably supported and its posture is maintained.

Moreover, when storing the stand member 16, the stand member 16 is rotated upward around the horizontal axis 28, and the engaging member 19 of the base fixing part 17^ is fitted and engaged with the Hawk stem 2, and the base is movable. By bending and standing the portion 17B upward and fittingly engaging the engaging portion 23 with the Hawk stem 2, the storage position can be achieved.

In this storage position, the movable part 17B of the base 17 is erected, so it does not get in the way when driving.
Further, the engagement protrusion 30 is fitted into the engagement recess 29 and is positioned and fixed.

The means for positioning and fixing the stand member 16 to the fork leg 3 in the above embodiment is not limited to this.
Other engagement means can be employed.

(Effects of the Invention) As described above, in the present invention, the saddle 4 is provided on the upper part of the hawk 1 via the seat post 5, and the wheels 6 are mounted between the left and right pair of hawk legs 3 at the lower part of the hawk 1. A unicycle rotatably supported via a shaft 7 includes a base 17 and a pair of left and right support legs 1 that stand up from the base 17.
8, a stand member 16 having a horizontal shaft 2 is attached to the hawk foot 3.
The base 17 is mounted so that it can rotate around 8 rotations, and the base 17 has support legs 18.
It consists of a fixed part 17^ fixed to the hawk 1 and a movable part 17B bendably attached to the fixed part 17^, and is characterized in that the fixed part 17A is provided with an engaging member 19 for engaging the hawk 1. Therefore, by setting the stand member 16 in a stand position, - the wheel wheel can be easily held on its own, and since the ground contact area of the base 17 can be increased, it can be stably held in the stand position; - the wheel wheel can be stored and stored. Of course, it is very convenient for exhibitions, etc., and since the storage space for the wheeled wheel can be minimized, it can be placed in a relatively narrow place. Furthermore, the stand member 16 can be rotated upward and held in the storage position, and the movable base portion 17B can be placed along the Hawk stem 2 in an upright manner, so that the stand member 16 does not get in the way when the wheeled vehicle is operated. without damaging the appearance.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall perspective view, FIG. 2 is an enlarged front view with some parts omitted, FIG. 3 is a left side view of FIG. 2, and FIG. 4 is a view of the stand member. Partially omitted enlarged perspective view,
FIG. 5 is an enlarged sectional view showing an example of the means for positioning and fixing the support legs. 1...Hawk, 3...Hawk legs, 4...Saddle,
5... Seat post, 6... Wheel, 7... Crankshaft, 16... Stand member, 17... Base, 1
7A...fixed part, 17B...movable part, 18...support leg, 19...engaging member.

Claims (1)

[Claims] (1) A saddle (4) is provided at the top of the hawk (1) via a seat post (5), and a wheel (6) is installed in the left-right direction between a pair of left and right hawk legs (3) at the bottom of the hawk (1). In the unicycle which is rotatably supported via the crankshaft (7) of the unicycle, a stand member (16) having a base (17) and a pair of left and right support legs (18) standing up from the base (17) is provided with a unicycle. The base (17) is attached to the leg (3) so as to be rotatable around the horizontal axis (28), and the base (17) has a fixed part (17A) fixed to the support leg (18) and a movable part (bendingly attached to the fixed part (17A)). 17B), and the fixed part (17A) has a hawk (
1) A unicycle characterized in that an engaging member (19) is provided.