JPH09451U - Electric tricycle frame structure - Google Patents

Abstract

(57) [Summary] [Problem] An overturning overhanging portion for preventing overturning is provided on a traveling frame of an electric riding tricycle. [Solution] A front rising part and a rear rising part are formed in front of and behind a horizontal boarding / alighting part, and a handle and a seat are arranged on the front bending part and the rear bending part. In an electric riding tricycle that has front wheels that interlock with the steering wheel in the lower center of the front bending part and rear wheels on the outer lower parts of the rear bending part with respect to the running frame, the front and rear axles are used as the front and rear wheels. It goes down to the vicinity of the plane passing through, and it protrudes outward outward from both the left and right sides of the rear part of the front bending part and the boarding / alighting part toward the rear from the end face of the traveling frame, and the upper surface is the upper surface of the traveling frame. A frame structure for an electric three-wheeled passenger vehicle, which is provided with a substantially flat overturning protrusion.

Description

[Detailed description of the device]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a frame structure of an electric riding tricycle for the physically handicapped or the elderly.

[0002]

[Prior art]

 As an electric riding tricycle, the rear wheels are mounted on the outside of the rear lower part of a substantially rectangular traveling frame, the front wheels are mounted on the center of the front part, or the convex shape is formed on the center part of the front part of the traveling frame. In some cases, the front wheels are stored in the front wheel storage section, and the entire width of the traveling frame is lowered, and the rear wheels are exposed outside the rear of the traveling frame. A steering wheel and seats are provided in front of and behind this traveling frame, and the steering wheel can be operated to change the direction of the front wheels.

[0003]

[Problems to be solved by the device]

 Therefore, according to this type of electric riding tricycle, when a physically handicapped person or an elderly person drives while sitting on the seat and holding the steering wheel, even if the vehicle body leans sideways beyond a certain angle, the entire traveling frame Since the height is high or the width is narrow even if it is low, both side portions of the central portion do not come into contact with the ground, so that there is a problem such as easy fall.

On the other hand, this type of electric riding tricycle uses a DC motor that uses a battery as a power source, and therefore needs to be as light as possible. For this reason, the traveling frame is made as narrow as possible by the pipe material as a frame body of the required limit. Therefore, it cannot be said that sufficient space can be secured for the area where the passengers get on and off and rest their feet, and the risk of falling is increased.

[0005]

[Means for Solving the Problems]

 Under the above problems, the present invention forms a front rising front curving portion and a rear rising rear curving portion in front of and behind a horizontal boarding / alighting portion, and handles the front curving portion and the rear curving portion with a handle. An electric riding tricycle that has front wheels linked to the steering wheel at the center lower part of the front bending part and rear wheels at both outer lower parts of the rear bending part with respect to the traveling frame with seats Lower to the vicinity of the plane that passes through each axle of the front and rear wheels, and project outward to the left and right of the rear part of the front bending part and the boarding / alighting part gradually toward the rear from the end face of the traveling frame, and the upper surface. The present invention provides a frame structure for an electric riding tricycle, which is provided with a fall-prevention overhanging portion that is substantially flush with the upper surface of the traveling frame.

By taking the above-mentioned means, the present invention means that, in the left and right outward direction between the rear portion of the front bending portion and the boarding / alighting portion, it gradually protrudes outward from the end face of the traveling frame, and Since the top surface of the traveling frame is almost flush with the top surface of the traveling frame, the overhanging overhanging portion is provided only where it is needed, which does not increase the weight unnecessarily. Furthermore, the overturning overhanging part also serves to widen the narrow boarding / alighting part.

[0007]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a traveling frame of an electric riding three-wheeled vehicle carrying out the present invention, FIG. 2 is a side view thereof, FIG. 3 is a side view showing an electric riding three-wheeled vehicle, FIG. 4 is a plan view thereof, and FIG. FIG. 6 is an explanatory view showing a state where the vehicle body of the tricycle is tilted.

First, the schematic structure of the electric riding tricycle will be described. In the electric riding tricycle, a traveling frame 1 having a handle 2 at the center of the front end and a seat 3 at the rear is interlocked with the handle 2 at the lower center of the front end. A front wheel 4 and a rear wheel 5 on both sides of the rear end are provided. The handle 2 has a handle shaft 2b having a grip portion 2a having an oblong shape or a dogleg shape at the upper end, which is inserted through the handle cylinder 6a extending from the traveling frame 1 in a penetrating manner. A front fork portion 4a is continuously provided, and the front wheel 4 is supported by the front fork portion 4a. The seat 3 is fitted in or fixed to a support cylinder 7a provided on the rear portion of the traveling frame 1 so as to be rotatable in a plane.

Next, in the present invention, as shown in FIG. 5, the vehicle body loses stability laterally, and a fall-prevention overhanging portion 8 that grounds before tilting to a certain angle is added to the outside of the traveling frame 1. It is a thing. That is, the traveling frame 1 has horizontal beams 1b, 1c, and 1d attached 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-shaped configuration. To form a main frame, and the front end side and the rear end side of the main frame are bent upward to form a front bending portion 9a and a rear bending portion 9b, respectively, and a front end of the front bending portion 9a. A convex handle support base 6 for fixing the handle cylinder 6a is provided between the front cross beam 1b and the front cross beam 1b, and the rear end of the rear bending part 9b (rear) A pair of L-shaped seat support bases 7 are attached to the cross beams 1d), and a mountain-shaped support seat 7a having a support tube 7b is fixed to the center of the seat support bases 7a. A flat plate is attached to the horizontal portion between the rear end and the central transverse beam 1c, and the flat boarding / alighting section 9 is provided. With each other to constitute a.

Then, the fall-prevention projections also made of a bar material that protrude outward outwardly from the end surface of the traveling frame 1 toward both outsides from the rear portion of the front bending portion 9a to the boarding / alighting portion 9c. The part 8 is projected. As shown in FIG. 2, the upper surface of the fall prevention overhanging portion 8 is set to be substantially flush with the upper surfaces of the traveling frame 1, that is, the rear portion of the front bending portion 9a and the boarding / alighting portion 9c. In addition, in order to eliminate the risk of objects directly touching the rear wheels 5 and to prevent the rear wheels 5 from being caught on the objects during turning, the rear frame 9b is placed outside the end face of the traveling frame 1 on both sides. The protection / mud removal frame 10 protruding toward the outside of the rear wheel 5 is extended to cover the front upper part of the rear wheel 5.

In this case, as shown in FIG. 1, the overhang amount of the fall prevention overhanging portion 8 is outward from the X-X line and the Y-Y line connecting the front wheel 4 and the left and right rear wheels 5, respectively. It is preferable that the width of both rear wheels is about 5 mm. Therefore, as a concrete configuration of the overturning prevention overhanging portion 8, as shown in FIG. 1, the overhanging overhanging portion 8 is extended to a line connecting both rear rear side positions of the front bending portion 9a and both front outer corner portions of the protection / mud removal frame 10. The shape. Further, the height of the boarding / alighting portion 9c and the fall-prevention overhanging portion 8 connected thereto are lowered to the height connecting the axles of the front wheels 4 and the rear wheels 5. In addition, the overturning overhanging portion 8 and the protection / mud removal frame 10 are covered with a thin cover material so as to be invisible (see FIGS. 3 and 4).

In addition, a steering box 11 having a starting switch 12, a forward / reverse switching switch 13, an accelerator lever 14 and the like is attached to the upper portion of the handle 2 and the like, and a DC motor 15 and a mission 16 are provided in the lower rear portion of the running frame 1. The power of the DC motor 15 is transmitted to the rear wheel 5 via the transmission 16 by operating the start switch 12, the forward / reverse switching switch 13, and the accelerator lever 14 as appropriate. It is designed to be driven forward.

[0013]

[Effect of the invention]

 As described above, in the present invention, even if the traveling frame tilts and falls down, the presence of the fall prevention overhanging portion prevents it from touching the ground and further inclining the traveling frame, thereby preventing a fall. Further, since this fall prevention overhanging portion is provided in a required shape in a specific shape, it does not cause an unnecessary increase in weight. Moreover, since the upper surface of the fall prevention overhanging portion is set to be substantially flush with the upper surface of the boarding / alighting portion, it does not hinder the boarding / alighting, and also serves to widen the narrowed boarding / alighting portion.

[Brief description of 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 an 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 diagram of a traveling state of an electric riding tricycle showing an example of the present invention.

[Explanation of symbols]

 1 Travel Frame 2 Handle 3 Seat 4 Front Wheel 5 Rear Wheel 8 Overturning Preventing Overhang 9a Front Curved Section 9b Rear Curved Section 9c Boarding Section

Claims (1)

[Utility model registration claims] 1. A front bending portion which rises forward and a rear bending portion which rises rearward are formed in front of and behind a horizontal boarding / alighting portion, and a handle and a seat are arranged on these front bending portion and rear bending portion. In the electric riding tricycle in which the front frame linked to the steering wheel is located at the lower center of the front bending part and the rear wheels are located at both outer lower parts of the rear bending part with respect to the running frame, While lowering it near the plane passing through the axle, it gradually protrudes outward as it goes rearward from the end face of the traveling frame to the left and right outside of the rear part of the front bending part and the getting on and off parts, and the upper surface is the upper surface of the traveling frame. A frame structure for an electric riding tricycle, which is provided with a fall prevention overhanging portion that is substantially flush with the above.