JP3038789B2 - Electric tricycle with footrest - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electric tricycle used for the elderly, the disabled, and the like, and more particularly to an electric tricycle with a footrest that is convenient for getting on and off.

(Prior Art) In a conventional electric tricycle, a steering wheel 1 is provided at a front portion of a vehicle body as shown in FIGS. 10 and 11, and an occupant seat 3 is provided at a rear portion via a floor surface 2. An accelerator and a brake operation function for driving the steering wheel 1 are added to the steering wheel 1, and a drive motor and a battery for rotating rear wheels are accommodated below the seat 3. In addition, in order to maintain the occupant's posture during the driving operation, put his feet on the floor 2
An interval is provided so that reaching the steering wheel 1 when reaching forward in a seated state. However, at the time of getting on and off, the floor 1 is narrow, and it is easy to take an unstable posture. On the other hand, even when the elderly person, the handicapped, etc. support and assist the body at the time of getting on and off, the steering wheel 1 may be in the way. For this reason, as shown in FIG.
A device having a mechanism for rotating the seat 3 in the left-right direction has been proposed (see Japanese Utility Model Laid-Open No. 63-163629). If this seat rotation mechanism is provided, the steering wheel 1 will not be in a cramped position, and the steering wheel 1 will be in the way when the elderly 3 and disabled people are turned on and off when the seat 3 is rotated sideways. It won't be.

(Problems to be Solved by the Invention) However, as described above, the seat 3 of the electric tricycle is designed so that the foot 3 can be attached to the floor surface 2 and the steering wheel 1 can be easily held during driving. In the state facing, the foot separates from the ground and becomes unstable. Further, it is difficult to use the column of the steering wheel 1 as an aid when an elderly person, a disabled person, etc. gets on and off, and the assisting person also supports the elderly person, the handicapped person, etc., so that the weight is increased and a considerable burden is imposed. Therefore, there has been a demand for an electric tricycle that can easily get on and off the seat 3 and does not need to take an unstable posture.

An object of the present invention is to provide an electric tricycle provided with a footrest for getting on and off a seat with a seat directed sideways.

(Means for Solving the Problems) In order to achieve the above object, according to the present invention, the invention according to claim 1 is provided with a seat provided with a rotating function with a vertical axis on a box installed at the rear part of the vehicle body. An electric tricycle having a flat vehicle body floor for placing a foot between the front wheel and the front of the box, wherein a substantially flat footrest is housed below the vehicle body floor along the vehicle body floor, and the footrest is In accordance with the rotation of the seat, the seat can protrude from the vehicle body edge on the side facing the seat.

Further, in the invention according to claim 2, the seat is rotatably inserted into a holder pipe of the vehicle body frame, and is supported on an upper portion of a rotary shaft pipe provided through a box in a vertical direction, and the footrest is The foot plate formed on the footrest is extended in the same direction as the direction of the seat, and is fixed to the lower end of the rotary shaft pipe extending down to the vehicle body, and the foot plate and the seat are integrally connected. It is characterized by.

Further, in the invention according to claim 3, the seat is rotatably inserted into a holder pipe of the vehicle body frame, and is supported on an upper part of a rotary shaft pipe provided through a box in a vertical direction. A spur gear fixed to the lower end of the rotating shaft pipe extending downward, and meshed with the spur gear, housed in the lower part of the vehicle body so as to rotate left and right or slide left and right, and to move in the direction of the seat. And a foot plate capable of protruding from the vehicle body edge when the seat faces the vehicle body side.

(Operation) Since the present invention is configured as described above, the electric tricycle 4
When the user riding on the vehicle rotates the seat 16 to the side of the electric tricycle 4 while sitting on the seat 16, the body is displaced from the position facing the steering wheel 7 and the feet are also displaced from the floor surface 14. The footrest (foot plate 17) projects to the side of the vehicle body from the same height as the floor surface 14 following the rotation of the seat 16, so that the foot can be held and a stable posture can be maintained. At times, a footrest (foot plate 17) protruding from the side of the vehicle body can be used as an aid.

(Embodiment) Next, an embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1, the electric tricycle 4 has a front cover 5 which is a hollow portion having a rear opening attached to a front portion of a vehicle body.
A steering shaft 6 protrudes therethrough, and a steering 7 operated by an occupant is provided above the steering shaft 6. A basket 8 for holding portable items is attached to the steering shaft 6. On the lower part of the body, a front wheel 10 is attached to a front fork 9 connected to the steering shaft 6.
Are provided rotatably. Drive wheels 11 are attached to both sides of the rear of the vehicle body, and a drive motor for rotating the drive wheels 11 and a battery are housed in a box 13 on the vehicle body frame 12. A flat floor 14 in front of the box 13 has a front end extending below the front cover 5 and a seat having an armrest 15 at the top of the box 13.
16 are installed rotatably. Also, the body frame 12
The footrest (foot plate 17), which is substantially flat and is linked to the rotation of the seat 16 and is attached to the lower part of the seat, is installed in accordance with the orientation of the seat 16, and its width is the width of the vehicle when facing the front. When the seat 16 is turned to the side, it has a length sufficiently protruding from the side of the vehicle body.

As shown schematically in FIG. 5, the seat 16 and the foot plate 17 extend vertically through the box 13 so that the body frame 12
Are connected by a rotating shaft pipe 18 rotatably attached to the shaft. The body frame 12 is, as shown in FIG.
The front surface 12a is formed into a substantially circular shape, and is slightly inclined upward, so that the floor surface 1
A frame is formed in a box shape on the rear portion 12b so as to form a frame of the box 13, and a member 19 is stretched sideways and reinforced. A hole is formed in the center of the member 19 and a holder pipe 20 is fitted therein. The joint upper portion is reinforced by a reinforcement 21 so that the direction of the axis of the holder pipe 20 is not bent. The inner diameter of the holder pipe 20 is enlarged at the upper portion and forms a step surface 20a at the center (see FIG. 2). A stay 22 is fixed to the upper outer periphery of the holder pipe 20 toward the front. Rotary shaft pipe 18
As shown in FIGS. 2 and 3, the upper pipe 18a is composed of an upper pipe 18a and a lower pipe 18b, and a seat frame (not shown) is attached to an upper end of the upper pipe 18a to hold the seat 16, The foot plate 17 described above is attached to the lower end of 18b in the same direction as the seat 16. The size of the foot plate 17 is such that, when the foot plate 17 faces the side of the vehicle body by the rotating shaft pipe 18 and protrudes from the body frame 12, the protruding area is sufficient for both feet. A rectangular cut 23 is formed at a position at 180 degrees between the joining ends of the upper pipe 18a and the lower pipe 18b,
The upper pipe 18a and the lower pipe 18b are connected by being shifted by a degree. An upper ring 24 of the same shape is fitted to the upper end of the lower pipe 18b, is engaged with the inner step surface 20a of the holder pipe 20, and a lower ring 25 that is engaged with the lower end of the holder pipe 20 is attached to the lower pipe 18b. It is mounted and supported by the holder pipe 20 so that the lower pipe 18b does not slide down. At the upper end of the holder pipe 20 through which the rotary shaft pipe 18 is inserted, a rotation support cylinder 26 having a sliding contact surface formed at the upper end is fixed, and is fixed to the stay 22 via a bracket 27 with bolts 28. A hole 26a is formed in a flat plate extending from the sliding contact surface of the rotation support cylinder 26, while a support member 29 that is in contact with the sliding contact surface of the rotation support cylinder 26 is fixed to the upper pipe 18a. An engagement element 31 urged downward by a spring 30 is provided on the support member 29, and the upper pipe 18
The engagement element 31 is engaged with the hole 26a by the rotation of a to be positioned at the operating position.

 Next, the operation will be described.

First, by rotating the seat 16, the position of the steering wheel 7 is shifted. Rotating shaft pipe at the same time
The foot plate 17 connected by 18 rotates so that the tip of the foot plate 17 projects from the side of the body frame 12. In this state, if necessary, an assistant is provided, and the foot plate 17 is seated with assistance, so that the foot is placed on the foot plate 17 as shown in FIG. 6, and this posture is maintained. Thereafter, the driver can take a driving posture by turning the seat 16 to the front. At this time, the foot enters the front cover 5. When descending from the electric tricycle 4, the seat 16 can be rotated, the feet can be moved to the protruding foot plate 17, the body can be turned to a space where the steering 7 does not interfere, and then the foot plate 17 can be assisted in descending.

In addition, a stopper may be provided on the lower part of the vehicle body so that the seat does not rotate more than 90 degrees, and the seat may be detachable so that it can be replaced.

Next, a second embodiment will be described with reference to FIGS.
As in the first embodiment, the description of the configuration in which the rotary shaft pipe 18 is connected to the seat and is rotatably provided will be omitted.

In the second embodiment, the lower pipe 18b, which is one side of the rotary shaft pipe 18, has a fan-shaped spur gear 32 attached to the lower portion thereof, and meshes with the spur gear 32 to form a semi-circular disc-shaped foot plate. The small gear 34 with the fixed 33 is the body frame 12
It is provided rotatably on both sides. Further, a return spring 35 is attached to the small gear 34 so as to be stored in a lower portion of the vehicle body frame 12 when the seat 16 faces forward, and the foot plate 33 is held at a fixed position.

Therefore, the rotation of the seat 16 rotates the spur gear 32 and the small gear 34, and causes the foot plate 33 to protrude to the side of the vehicle body. Thereby, an effect similar to that of the first embodiment is obtained. Further, the radius of rotation of the foot plate 33 can be smaller than that of the first embodiment, and the surface of the foot plate 33 can be used effectively.

Next, a third embodiment will be described with reference to FIG. In this embodiment, a spur gear 32 is attached to a lower portion of the lower pipe 18b, and a rack 36 meshing with the spur gear 32 is fixed to a foot plate 37 that slides in the lateral direction of the vehicle body. The foot plate 37 is supported by guides 38 provided on both sides in the sliding direction. Note that the foot plate 37 is pulled out and fixed for a fixed length, and can be protruded to either the left or right side.

(Effect of the Invention) Since the present invention is configured as described above, by rotating the seat of the electric tricycle to the side,
Since the footrest protrudes from the same height as the vehicle floor on the side of the vehicle, the footrest retains the occupant's feet even if the body is out of the position facing the steering wheel, so the seated position is maintained. be able to. As a result, the footrest can be used as an aid at the time of getting on and off, and an effect that the elderly and the handicapped can be easily used.

Further, the interlocking relationship between the seat and the footrest is based on the movement of the footrest on the substantially horizontal plane with respect to the rotation of the seat on the substantially horizontal plane, so that the footrest of the occupant can be moved smoothly.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electric tricycle with a footrest according to an embodiment of the present invention, FIG. 2 is a side sectional view showing a connecting portion between the footrest and the seat of the embodiment, and FIG. 3 is a perspective view of a main part in FIG. ,
FIG. 4 is a perspective view of a body frame of the electric tricycle of the embodiment,
FIG. 5 is a schematic diagram for explaining an outline of the electric tricycle with a footrest of the embodiment, FIG. 6 is a schematic diagram for explaining a use mode of the electric tricycle with a footrest of the embodiment, and FIG. 7 is a footrest of the second embodiment. FIG. 8 is a perspective view of an electric tricycle equipped with
FIG. 9 is a plan view showing a main part structure of the third embodiment, FIG. 9 is a perspective view of an electric tricycle with a footrest of the third embodiment, and FIGS. 10 and 11 are schematic views illustrating usage of a conventional electric tricycle. It is. 4 Electric tricycle 7 Steering 14 Floor 16 Seats 17, 33, 37 Footrest (foot plate) 18 Rotating shaft pipe

Claims (3)

(57) [Claims] 1. An electric motor provided with a seat provided with a rotation function with a vertical axis on a box installed at the rear part of a vehicle body, and a flat vehicle body floor for placing a foot between the box and a front wheel in front of the box. In the tricycle, a substantially flat footrest is housed below the vehicle body floor along the vehicle body floor, and the footrest can be protruded from the vehicle body edge on the side facing the seat in conjunction with the rotation of the seat. An electric tricycle with a footrest. 2. A seat is rotatably inserted into a holder pipe of a vehicle body frame, and is supported on an upper portion of a rotating shaft pipe provided through a box in a vertical direction, and a footrest is formed on the footrest. The direction of extension of the seat in the same direction as the direction of the seat, and fixed to the lower end of the rotary shaft pipe extending down to the vehicle body,
The electric tricycle with a footrest according to claim 1, wherein the foot plate and the seat are integrally connected. 3. A seat is rotatably inserted into a holder pipe of a vehicle body frame, and is supported on an upper portion of a rotary shaft pipe provided through a box in a vertical direction, and a footrest extends to a lower part of the vehicle body. A spur gear fixed to the lower end of the rotary shaft pipe, meshed with the spur gear, housed in the lower part of the vehicle body so as to rotate left and right or slide left and right, and follow the movement of the seat, and the seat is moved. 3. The electric tricycle with a footrest according to claim 1, further comprising a foot plate that can protrude from an edge of the vehicle body when facing the vehicle body side.