JP4942840B2 - Wheeled motorcycle - Google Patents

Description

The present invention relates to a hand-held two-wheeled vehicle that carries a load by hand.

20 and 21, as shown in FIGS. 20 and 21, a pair of left and right support arms 33 and 33 are provided at the bottom of the loading platform 32, and a wheel 34 is provided between the pair of left and right support arms 33 and 33. There is a unicycle 31 attached to the shaft. The unicycle 31 is convenient for traveling in a narrow place and is widely used. However, since the unicycle has only one wheel 34, there is a problem that it is difficult to balance the loading platform 32 when traveling with a large load on the loading platform 32 or when the traveling surface is not flat. Reference numeral 35 denotes a handle.

Various types of hand-held two-wheeled vehicles with two wheels have been proposed.
For example, Japanese Patent Application Laid-Open No. 2007-145215 (refer to Patent Document 1)... Adjusting the wheel width Japanese Patent Application Laid-Open No. 2006-240326 (refer to Patent Document 2)... Switching between a two-wheeled vehicle and a one-wheeled vehicle Gazette (refer to Patent Document 3) ... Adjusting the inclination of the wheel of a two-wheeled vehicle Utility Model Registration No. 3086239 (refer to Patent Document 4) ... Switching between a two-wheeled vehicle and a one-wheeled vehicle JP-A-11-91573 (Patent Document) (Refer to 5) .... Fees etc. have been proposed for loading and unloading.

Various types of hand-held two-wheeled vehicles have also been proposed in which the loading platform is inclined to the left and right on the two-wheeled vehicle to facilitate balance.
For example, Utility Model Registration No. 3131612 (see Patent Document 6) ... A support shaft is provided on a support column, and an X-shaped spring is stretched between a cargo bed and an axle. Japanese Patent Application Laid-Open No. 2004-168246 (see Patent Document 7) ) ... Connected between the V-shaped pipes of the carriage frame and the loading frame with a support shaft. Japanese Patent Application Laid-Open No. 11-20703 (refer to Patent Document 8) .... It has been proposed that the loading platform supported by the oscillates.
In particular, this latter hand-held two-wheeled vehicle is very easy to balance even for elderly people because the loading platform tilts to the left and right.

JP 2007-145215 A JP 2006-240326 A JP 2002-225715 A Utility Model Registration No. 3086239 JP 11-91573 A Utility Model Registration No. 3131612 JP 2004-168246 A Japanese Patent Application Laid-Open No. 11-20703

In the conventional two-wheeled vehicle, the load-type two-wheeled vehicle in which the loading platform tilts to the left and right for easy balancing is provided with a support shaft on each column, and an X-shaped spring is stretched between the loading platform and the axle, or the carriage frame and the loading platform The V-shaped pipes of the frame are connected by a support shaft, or an arc-shaped frame is passed between wheels so that a bed supported by a rolling wheel swings on the frame.

However, in the conventional hand-held two-wheeled vehicle in which the loading platform tilts to the left and right on the above-described two-wheeled vehicle so that it is easy to balance, there is a feature in the mechanism that tilts the loading platform to the left and right on the two-wheeled vehicle.
Therefore, the conventional unicycle cannot be easily modified into a two-wheeled vehicle, or the structure can be easily switched between the two-wheeled vehicle and the one-wheeled vehicle.

An object of the present invention is to provide a hand-held two-wheeled vehicle that can be easily modified from a conventional one-wheeled vehicle to a two-wheeled vehicle or can easily switch between a two-wheeled vehicle and a one-wheeled vehicle.

In order to achieve the above object, the hand-held two-wheeled vehicle of the present invention is
A push-type two-wheeled vehicle in which two wheels are supported on an axle supported by a support body in a direction orthogonal to a moving direction of the cargo bed at a lower front portion of the cargo bed,
The wheels are rotatably supported on the axle;
The support body includes a bearing portion fixed to an intermediate position of the wheel of the axle, a pair of left and right support arms suspended from the loading platform, and a connection spanned between ends of the pair of left and right support arms. A shaft, and a support shaft that pivotally attaches a first connection piece attached downward to the connection shaft and a second connection piece attached upward to the bearing portion;
The support arm of the loading platform can be tilted to a predetermined angle around the support shaft.

In the hand-held two-wheeled vehicle according to the present invention, the connecting shafts inserted between the ends of the pair of left and right support arms of the support body are respectively attached to the brackets suspended from the ends of the pair of left and right support arms. One end of the connecting plate having a predetermined length is fixed with a bolt and nut, and the connecting shaft is inserted and fixed to the other end of the connecting plate.

The hand-held two-wheeled vehicle according to the present invention is characterized in that the support arm of the cargo bed is reinforced by connecting an end portion of a reinforcement arm suspended from the front end of the cargo bed to the tip thereof.

2. The hand-held two-wheeled vehicle according to claim 1, wherein the support is a bearing portion fixed to an intermediate position of the wheel of the axle, a pair of left and right support arms suspended from the cargo bed, and the pair of left and right support arms. A connecting shaft passed between the end portions of the first connecting piece, a first connecting piece attached downward to the connecting shaft, and a second connecting piece attached upward to the bearing portion so as to be pivotable. The support arm of the loading platform can be tilted to a predetermined angle with the support shaft as a center.
Therefore, it is possible to provide a hand-held two-wheeled vehicle that can be disassembled from a conventional one-wheeled vehicle and easily remodeled into a two-wheeled vehicle or can be easily switched between the two-wheeled vehicle and the one-wheeled vehicle.

In the hand-held two-wheeled vehicle according to claim 2, a connecting shaft that is interposed between the ends of the pair of left and right support arms of the support body is respectively suspended from the ends of the pair of left and right support arms. One end of a connecting plate of a predetermined length is fixed to the bracket with a bolt and nut, and the connecting shaft is inserted and fixed to the other end of the connecting plate.
Therefore, according to the structure of the support arm of the loading platform, the connecting shaft is attached to a conventional bracket as it is, or one end of a connecting plate is fixed to the bracket with a bolt and nut, and the connecting end is connected to the other end of the connecting plate. By attaching and fixing the shaft, the attachment position can be moved backward.
Therefore, it is possible to provide a hand-held two-wheeled vehicle capable of appropriately changing the mounting position of the wheel according to the structure of the support arm of the cargo bed.

In the hand-held two-wheeled vehicle according to claim 3, since the support arm of the load carrier according to claim 1 is reinforced by connecting the end of the reinforcement arm that is suspended from the front end of the load carrier to the tip thereof, This makes it possible to provide a hand-held two-wheeled vehicle that can prevent a load carrier from being deformed even when it is tilted toward the vehicle and can withstand a large load.

1 is a front view showing a first embodiment of a hand-held two-wheeled vehicle according to the present invention. It is the side view. It is the longitudinal cross-sectional view. It is a front view of the state which inclined the loading platform to the right side. It is a front view of the state which inclined the loading platform to the left side. It is a front view of the state where one wheel rides on the step. It is a front view which shows 2nd Example of the hand-held type two-wheeled vehicle which concerns on this invention. It is the side view. It is the longitudinal cross-sectional view. It is a front view of the state which inclined the loading platform to the right side. It is a front view of the state which inclined the loading platform to the left side. It is a front view of the state where one wheel rides on the step. It is a perspective view in the state where the upper and lower sides of a support part were cut off. It is a perspective view of the state which assembled the upper and lower sides of the support part. It is a front view of the state which attached the support body to the support arm. FIG. It is a perspective view of the state before a 1st connection piece is assembled | attached to a 2nd connection piece. It is a perspective view of the state where the 1st connecting piece was inserted in the 2nd connecting piece. It is a perspective view of the state where the 1st connecting piece was assembled to the 2nd connecting piece. It is a front view of the conventional hand-held two-wheeled vehicle. It is the side view.

Embodiments of a hand-held two-wheeled vehicle according to the present invention will be described below in detail with reference to the drawings.
1 to 6 show a first embodiment of a hand-held two-wheeled vehicle according to the present invention. FIG. 1 is a front view of the hand-held two-wheeled vehicle of this embodiment, FIG. 2 is a side view thereof, and FIG. 4, FIG. 4 and FIG. 5 are front views showing a state in which the loading platform is tilted, and FIG. 6 is a front view showing a state where one wheel rides on a step.

In FIG. 1 to FIG. 3, the hand-held two-wheeled vehicle 11 has two wheels 14, 15 on the left and right on the front lower portion of the loading platform 12, the axle 16 supported by the support body 13 in the direction orthogonal to the moving direction of the loading platform 12. The wheels 14 and 15 are rotatably mounted on the axle 16 and can be freely advanced and retracted by operating the handle 17 for pushing.

The support 13 includes a bearing portion 21 fixed to an intermediate position between the left and right wheels 14 and 15 of the axle 16, a pair of left and right support arms 22 and 23 suspended from the loading platform 12, and a pair of left and right support members. And a connecting shaft 24 that is extended between the ends of the arms 22 and 23.
Then, the first connection piece 25 attached downward to the connection shaft 24 and the second connection piece 26 attached upward to the bearing portion 21 are pivotally attached to the support shaft 27 so as to rotate. The support arms 22 and 23 of the loading platform 12 can be tilted to a predetermined angle about the support shaft 27.

That is, since the loading platform 12 can be freely tilted on the wheels 14 and 15 as shown in FIGS. 4 and 5, the loading platform 12 can be tilted and loaded without difficulty while ensuring stable running. Can be lifted.
Further, as shown in FIG. 6, even if one of the wheels 14 to 15 climbs on the step 28, the inclination can be absorbed without difficulty, so that the loading platform 12 can be kept horizontal even in uneven places such as fields and farm roads. This makes it possible to travel stably.

The pair of left and right support arms 22, 23 suspended from the loading platform 12 is connected to the ends of reinforcing arms 29, 30 suspended from the front end of the loading platform 12. Even if it is tilted, it is reinforced by the reinforcing arms 29 and 30, so that the cargo bed 12 is not deformed and can withstand a larger load.
The pair of left and right support arms 22 and 23 suspended from the loading platform 12 is bent in the horizontal direction forward at the lower end portion thereof, and the wheels 14 and 15 are attached at this horizontal position. The support arms 22 and 23 can be tilted deeper.

When the hand-held two-wheeled vehicle 11 of the present invention is manufactured, the wheels are removed from the pair of left and right support arms 22 and 23 suspended from the loading platform 12 of the conventional unicycle, and the first connecting piece 25 is interposed between the support arms 22 and 23. A connecting shaft 24 provided in advance is attached.
Further, the pair of wheels 14 and 15 are pivotally attached to the left and right of the axle 16 and a second connecting piece 26 is attached in advance to the bearing portion 21 on the axle 16.

Then, if the first connecting piece 25 attached downward to the connecting shaft 24 and the second connecting piece 26 attached upward to the bearing portion 21 are pivotally attached to the support shaft 27, the loading platform can be obtained. Thus, the hand-held two-wheeled vehicle 11 in which the twelve support arms 22 and 23 can be tilted to a predetermined angle about the support shaft 27 is completed.

Of course, in order to change the hand-held two-wheeled vehicle 11 to a single-wheeled vehicle, disassembly / assembly may be performed in the reverse order of the above-described operation.

7 to 12 show a second embodiment of the hand-held two-wheeled vehicle according to the present invention. FIG. 7 is a front view of the hand-held two-wheeled vehicle of this embodiment, FIG. 8 is a side view thereof, and FIG. 10, FIG. 10 and FIG. 11 are front views showing a state in which the loading platform is inclined, and FIG. 12 is a front view showing a state where one wheel rides on a step.

7 to 9, a hand-held two-wheeled vehicle 31 has two wheels 34 and 35 on the left and right sides of an axle 36 supported by a support 33 at a lower front portion of a loading platform 32 in a direction orthogonal to the moving direction of the loading platform 32. The wheels 34 and 35 are mounted to be separated from each other and are rotatably supported on the axle 36, and can be freely advanced and retracted by operating a handle 37 for pushing.

The support 33 includes a bearing 41 fixed to an intermediate position between the left and right wheels 34 and 35 of the axle 36, a pair of left and right support arms 42 and 43 suspended from the loading platform 32, and a pair of left and right support members. A connecting shaft 44 is provided between the ends of the arms 42 and 43.
In the hand-held two-wheeled vehicle according to the second embodiment, the connecting shaft 44 inserted between the ends of the pair of left and right support arms 42 and 43 of the support 33 is the pair of left and right support arms 42. , 43 can be attached to brackets 51, 52 suspended respectively at the end portions by appropriately changing the attachment positions.

For example, if one end of a connecting plate 53 having a predetermined length is fixed to the brackets 51 and 52 with bolts and nuts 54 and 55, respectively, and the connecting shaft 44 is passed and fixed to the other end of the connecting plate 53, the connection The mounting position of the shaft 44 can be shifted backward.
More specifically, the ends of the reinforcing arms 49 and 50 suspended from the front end of the loading platform 32 are coupled to a pair of left and right support arms 42 and 43 that are suspended from the loading platform 32. Since it is the front-end | tip of the said support arms 42 and 43, and has shifted | deviated a little back, it comes to be able to respond | correspond flexibly to such various structures.

Therefore, first, the connecting shaft 44 can be directly attached to the conventional brackets 51 and 52 according to the structure of the support arms 42 and 43 of the loading platform 32. Further, one end of the connecting plate 53 is fixed to the brackets 51 and 52 by bolt nuts 54 and 55, respectively, and the connecting shaft 44 is passed and fixed to the other end of the connecting plate 53, thereby moving the mounting position backward. It is also possible to make it.
Accordingly, it is possible to provide a hand-held two-wheeled vehicle capable of appropriately changing the mounting positions of the wheels 34 and 35 according to the structure of the support arms 42 and 43 of the loading platform 32.

Then, the first connecting piece 45 attached downward to the connecting shaft 44 and the second connecting piece 46 attached upward to the bearing portion 41 are pivotally attached to the support shaft 47 so as to be rotatable. The support arms 42 and 43 of the loading platform 32 can be tilted to a predetermined angle with the support shaft 47 as the center.

That is, since the loading platform 32 can be freely tilted on the wheels 34 and 35 as shown in FIG. 10 and FIG. Can be lifted.
Also, as shown in FIG. 12, even if one of the wheels 34 to 35 rides on the step 48, the inclination can be absorbed without difficulty, so that the loading platform 32 can be kept horizontal even in uneven places such as fields and farm roads. This makes it possible to travel stably.

The pair of left and right support arms 42 and 43 suspended from the loading platform 32 are connected to the ends of reinforcing arms 49 and 50 suspended from the front end of the loading platform 32, so that the loading platform 32 is tilted. However, since it is reinforced by the reinforcing arms 49 and 50, the loading platform 32 is not deformed and can withstand a larger load.
The pair of left and right support arms 42 and 43 suspended from the loading platform 32 is bent forward in the horizontal direction at the lower end portion thereof, and the wheels 34 and 35 are attached at this horizontal position. The support arms 42 and 43 can be tilted deeper.

In manufacturing the hand-held two-wheeled vehicle 31 of the second embodiment, the wheels are removed from the pair of left and right support arms 42 and 43 suspended from the loading platform 32 of the conventional unicycle, and the first between the support arms 42 and 43 is removed. A connecting shaft 44 provided with a connecting piece 45 in advance is attached.
That is, one end of a connecting plate 53 having a predetermined length is fixed to each of the brackets 51 and 52 suspended from the end portions of the pair of left and right support arms 42 and 43 with bolt nuts 54 and 55, respectively. The connecting shaft 44 is inserted and fixed to the other end of the plate 53.
Further, the pair of wheels 34 and 35 are pivotally attached to the left and right of the axle 36, and a second connecting piece 46 is attached in advance to the bearing portion 41 on the axle 36.

A method for assembling the connecting shaft 44 to the support 33 will be described in detail with reference to FIGS.
In FIG. 13, a support shaft 47 is detachably attached to the bearing portion 41 on the axle 36 to which the second connecting piece 46 is previously attached. On the other hand, bolt nuts 54 and 55 are respectively attached to one end of a connecting plate 53 of a predetermined length attached to the brackets 51 and 52, and a first connecting piece 45 is previously attached to the other end of the connecting plate 53. The provided connecting shaft 44 is mounted across.

Thereafter, the first connecting piece 45 suspended from the connecting shaft 44 is fitted into the second connecting piece 46 on the connecting shaft 44, and both are connected and fixed by the support shaft 47 as shown in FIG.
15 and 16, one end of a connecting plate 53 having a predetermined length is connected to each of the brackets 51, 52 suspended from the ends of the pair of left and right support arms 42, 43, respectively. Further, the connecting shaft 44 is attached across the other end of the connecting plate 53.

Then, the first connecting piece 45 attached downward to the connecting shaft 44 and the second connecting piece 46 attached upward to the bearing portion 41 are assembled as shown in FIG. 18 from the state before assembly in FIG. As shown in FIG. 19, the shaft 47 is pivotally attached to the support shaft 47.
Then, the hand-held two-wheeled vehicle 31 in which the support arms 42 and 43 of the loading platform 32 can be tilted to a predetermined angle about the support shaft 47 is completed.

Of course, in order to change the hand-held two-wheeled vehicle 31 to the one-wheeled vehicle, disassembly / assembly may be performed in the reverse order of the above-described operation.

As described above, the present invention has been described as a hand-held two-wheeled vehicle suitable for, for example, farm work, but it goes without saying that the present invention can be similarly applied to a hand-held two-wheeled vehicle used for other purposes.

DESCRIPTION OF SYMBOLS 11 Push-type two-wheeled vehicle 12 Loading platform 13 Support body 14,15 Wheel 16 Axle 17 Handle 21 Bearing part 22,23 Support arm 24 Connection shaft 25 1st connection piece 26 2nd connection piece 27 Support shaft 28 Level difference 29, 30 Reinforcement arm 31 hand-push type motorcycle 32 loading platform 33 support body 34, 35 wheel 36 axle 37 handle 41 bearing portion 42, 43 support arm 44 connection shaft 45 first connection piece 46 second connection piece 47 support shaft 48 steps 49, 50 reinforcement arm 51, 52 Bracket 53 Connecting plate 54, 55 Bolt nut

Claims (3)

A push-type two-wheeled vehicle in which two wheels are supported on an axle supported by a support body in a direction orthogonal to a moving direction of the cargo bed at a lower front portion of the cargo bed,
The wheels are rotatably supported on the axle;
The support body includes a bearing portion fixed to an intermediate position of the wheel of the axle, a pair of left and right support arms suspended from the loading platform, and a connection spanned between ends of the pair of left and right support arms. A shaft, and a support shaft that pivotally attaches a first connection piece attached downward to the connection shaft and a second connection piece attached upward to the bearing portion;
A hand-held two-wheeled vehicle characterized in that the support arm of the cargo bed can be tilted to a predetermined angle about a support shaft. One end of a connecting plate having a predetermined length is connected to a bracket that extends between the ends of the pair of left and right support arms of the support body, and is hanged from the ends of the pair of left and right support arms. 2. The hand-held two-wheeled vehicle according to claim 1, wherein each of the two is fixed with a bolt and nut, and the connecting shaft is fixed to the other end of the connecting plate. 2. The hand-held two-wheeled vehicle according to claim 1, wherein the pair of left and right support arms are reinforced by connecting ends of reinforcing arms suspended from the front end of the loading platform to the ends thereof.

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