JP2594136Y2 - Electric riding tricycle frame structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame structure of an electric riding tricycle for the physically handicapped or the elderly.

[0002]

2. Description of the Related Art As an electric riding tricycle, a rear wheel is provided on both outer sides of a rear portion below a substantially rectangular traveling frame, a vehicle height having a front wheel mounted on a front center, or a front central portion of the traveling frame. There is a case in which the entire traveling frame whose front wheel is narrowed by accommodating a front wheel in a convex front wheel accommodating portion formed in the above is lowered, and a rear wheel is exposed on both outer sides of a rear portion of the traveling frame and axle-mounted. A steering wheel and a seat are arranged before and after the traveling frame, and the direction of the front wheels can be changed by operating the steering wheel.

[0003]

Therefore, according to this kind of electric riding tricycle, when a disabled person or an elderly person drives while sitting on a seat and grasping a steering wheel, a constant angle at which the body loses lateral stability is obtained. Even if the vehicle is tilted as described above, since the entire running frame is high or the width is narrow even if the running frame is low, both sides of the central portion do not contact the ground, so that there is a problem that the vehicle easily falls over.

On the other hand, this type of electric riding tricycle requires a DC motor driven by a battery as a driving source, and therefore is required to be as light as possible. For this reason, the running frame is made as narrow as possible as a necessary frame by the pipe material. Therefore, it can not be said that there is enough space for getting on and off the foot
The risk of falling increases.

[0005]

SUMMARY OF THE INVENTION Under the above-mentioned problems, the present invention forms a front curving portion rising forward and a rear curving portion rising rearward before and after a horizontal getting on / off portion. For the traveling frame that arranges the steering wheel and seat in the section and the rear bending section,
In an electric riding tricycle having a front wheel linked to the steering wheel at the center lower part of the front curving part and a rear wheel at the outer lower part on both sides of the rear curving part, lower the getting on and off part to near the plane passing through each axle of the front and rear wheels. At the same time, it gradually protrudes outward from the end of the running frame to the left and right outward from the rear part of the front curved part and the getting on and off part, and the top surface is almost flat with the top surface of the running frame to prevent tipping over An object of the present invention is to provide a frame structure of an electric riding tricycle characterized by providing an overhang portion.

[0006] By taking the above measures, this invention
In other words, it gradually protrudes outward as it goes from the end face of the running frame toward the rear from the end face of the running frame to both the left and right sides between the rear part of the front curving portion and the getting on / off portion, and the top surface is substantially flat with the top surface of the running frame. Since the overhang portion is provided, the overturn prevention overhang portion is provided only at a necessary portion, and does not unnecessarily increase the weight. Further, the overturn prevention overhanging portion also plays a role of widening the narrow getting on / off portion.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing a traveling frame of an electric riding tricycle embodying the present invention, FIG. 2 is a side view thereof, FIG. 3 is a side view showing an electric riding tricycle, FIG. 4 is a plan view thereof, and FIG. 5 is an electric riding tricycle. FIG. 3 is an explanatory diagram showing a state in which the vehicle body is inclined.

First, the schematic structure of an electric riding tricycle will be described. This electric riding tricycle is interlocked with a steering frame 2 at a lower center of the front end with respect to a traveling frame 1 having a handle 2 at the front center and a seat 3 at the rear. And a rear wheel 5 on both sides of the rear end. Handle 2
Inserts a handle shaft 2b having a grip portion 2a having an oblong or rectangular shape at its upper end into a handle tube 6a extending upward from the traveling frame 1 in a penetrating manner, and the front fork portion The front wheels 4a are connected to each other, and the front wheels 4 are supported thereon. Seat 3
Is fitted or fixed to a support cylinder 7a provided on the rear part of the traveling frame 1 so as to be rotatable in a plane.

Next, in the present invention, as shown in FIG. 5, the overturning protruding portion 8 which contacts the ground until the vehicle body tilts to a certain angle at which the vehicle body loses stability to the side is added to the outside of the traveling frame 1. Things. That is, the traveling frame 1
The main frame is formed by attaching cross beams 1b, 1c, and 1d to the front, center, and rear ends of a U-shaped frame 1a formed by bending a rod material such as a square pipe or a round pipe into a substantially U-shape. The front end side and the rear end side of the main frame are respectively bent upward to form a front bent portion 9a and a rear bent portion 9b, and between the front end of the front bent portion 9a and the front cross beam 1b. A protruding handle support base 6 for fixing the handle tube 6a is protruded,
Further, a pair of L-shaped seat supports 7 are attached from the center of the main frame (central cross beam 1c) to the rear end of the rear curved portion 9b (rear cross beam 1d). A flat support member 7a having a chevron 7b is fixed, and a flat plate is attached to a horizontal portion between the rear end of the front curving portion 9a and the central cross beam 1c to form a flat getting on / off portion 9c. It is.

Then, from the rear part of the front bending part 9a, from the rear part 9
The overturn prevention overhanging portion 8 made of the same bar is gradually projected outwardly from the end face of the traveling frame 1 toward both sides toward c. As shown in FIG. 2, the upper surface of the overturn prevention overhang portion 8 is connected to the traveling frame 1, that is, the rear portion of the front bending portion 9 a and the getting on / off portion 9 c
Are set substantially flush with the upper surface of the. Furthermore, in order to eliminate the danger of an object or the like directly touching the rear wheel 5, and to prevent the rear wheel 5 from being caught on an object during turning, the rear curving portion 9 is provided.
b, the rear wheels 5 outward from the end face of the traveling frame 1
The protection and mud removal frame 10 projecting to the outside is extended so as to cover the front upper part of the rear wheel 5.

In this case, as shown in FIG. 1, the overhang amount of the overturn prevention overhang portion 8 is set between the front wheel 4 and the right and left rear wheels 5.
It is preferable to extend outwardly from the XX line and the YY line connecting the respective rear wheels, and to the width of both rear wheels up to about five. Therefore, as a specific configuration of the overturn prevention overhanging portion 8, as shown in FIG. 1, the overhanging overhanging portion 8 is extended up to a line connecting both rear portions of the front bending portion 9 a and both outer corner portions of the front end of the protection and mud removal frame 10. Shape. Also, the heights of the entry / exit portion 9c and the overturn prevention overhanging portion 8 connected thereto are reduced to a height connecting the axles of the front wheel 4 and the rear wheel 5 to each other. Note that the overhanging protruding portion 8 and the protective and mud removing frame 10 are covered with a thin cover material so as to be invisible (see FIGS. 3 and 4).

In addition, a control box 11 having a start switch 12, a forward / reverse changeover switch 13, an accelerator lever 14 and the like is mounted on the upper portion of the handlebar 2 and the like. The start switch 12, the forward / reverse changeover switch 13 and the accelerator lever 1 are attached.
By appropriately operating the motor 4, the power of the DC motor 15 is transmitted to the rear wheel 5 via the transmission 16 and is driven forward and backward.

[0013]

As described above, according to the present invention, even if the running frame is tilted and falls, the overturning prevention overhanging portion comes into contact with the ground to prevent the running frame from further tilting, thereby preventing the running frame from falling. Since the overturn prevention overhanging portion is provided in a necessary portion in a specific shape, the weight does not increase unnecessarily. Further, since the upper surface of the overturn prevention overhanging portion is set to be substantially flush with the upper surface of the getting on / off portion or the like, it does not hinder getting on / off and also serves to widen the narrow getting on / off portion.

[Brief description of the drawings]

FIG. 1 is a plan view showing a traveling frame of an electric riding tricycle showing an example of the present invention.

FIG. 2 is a side view showing a traveling frame of an electric riding tricycle showing an example of the present invention.

FIG. 3 is a side view of the electric riding tricycle showing an example of the present invention.

FIG. 4 is a plan view of an electric riding tricycle showing an example of the present invention.

FIG. 5 is an explanatory view of a traveling state of the electric riding tricycle showing an example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running frame 2 Handle 3 Seat 4 Front wheel 5 Rear wheel 8 Fall prevention overhanging part 9a Front curving part 9b Rear curving part 9c Getting on and off part

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 61-200028 (JP, U) US Patent 4570739 (US, A) US Design 275379 (US, Des)

Claims (1)

(57) [Scope of request for utility model registration] 1. A front curving portion rising forward and a rear curving portion rising rearward are formed before and after a horizontal entry / exit portion, and a steering wheel and a seat are disposed on the front curving portion and the rear curving portion. The front and rear wheels are linked to the steering wheel at the lower center of the front bending section and the rear wheels are positioned at the lower outside of the rear bending section. Lowering to near the plane passing through the axle, and gradually projecting outward from the end face of the traveling frame toward both the left and right outside of the rear part of the front curving portion and the getting on / off portion, and the upper surface is the upper surface of the traveling frame And a frame structure for an electric riding tricycle, characterized in that it is provided with an overhanging overhang portion which is substantially flush with the vehicle.