JP2565446Y2 - Electric tricycle seat attachment / detachment device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat attachment / detachment device for an electric tricycle in which the direction of a seat is determined when the seat is mounted.

[0002]

2. Description of the Related Art An electric three-wheeled vehicle has a battery mounted on a body frame and is driven by a motor, and has a seat and a handle. When transporting an electric tricycle, the seat and the handle are projected from the vehicle body frame, so that the seat is made detachable so that the vehicle can be easily transported, or the handle falls on the vehicle body frame. In some cases, the driver can adjust the height of the seat because the driver operates the steering wheel while sitting on the seat. Japanese Utility Model Laid-Open No. 1-145015 discloses a structure in which a seat 4 can be rotated and turned sideways.

As shown in FIGS. 4 and 5, a seat leg pipe 3 fixed to a lower portion of a seat is inserted into a cylindrical holder 2 erected on a vehicle body frame 1 as shown in FIGS. The leg pipe 3 has a stopper 4 formed with two concave portions 4a at the lower end and a tapered portion 4b formed at the lower end with a tapered portion 4b at the lower end. And is fastened and fixed by bolts 5.

[0004] An outer cylinder 6 is connected to the upper part of the holder 2 and is welded at the lower end, and the inner part of the upper part is enlarged by that much.
The upper end of the outer cylinder 6 is formed with two convex portions 6a. Therefore, when the stopper 4 is fastened and fixed at a predetermined position of the seat leg pipe 3 and the seat leg pipe 3 is inserted into the holder 2 to align the concave portion 4a of the stopper 4 with the convex portion 6a of the outer cylinder 6, the outer cylinder The tapered portion 4b at the lower end of the stopper 4 is bitten into the interior of 6, so that the orientation and fixing of the sheet can be performed simultaneously. The height adjustment of the seat can be determined by the position where the stopper 4 is stopped.

[0005]

However, the stopper 4 attached to the seat leg pipe 3 has a concave portion 4a or a tapered portion.
There are many work steps such as processing of 4b and welding of the outer cylinder 6 to the holder 2, and there is a problem that play occurs at the lower part of the holder 2 due to the difference between the inner diameter of the holder 2 and the outer diameter of the seat leg pipe 3. In addition, when attaching the sheet, there is a trouble that the concave portion 4a of the stopper 4 also serving as a rotation stopper and the convex portion 6a of the outer cylinder 6 welded to the holder 2 are put together. In addition, there is a problem that the cost is increased because the mechanism of the matching portion between the stopper 4 side and the holder 2 side is complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric tricycle seat attaching / detaching apparatus which simplifies a seat attaching structure and facilitates attaching / detaching work.

[0007]

SUMMARY OF THE INVENTION The present invention to achieve the above object, as well as securing the seat leg pipe suspended in the lower portion of the seat, the vehicle body frame cylindrical holder causes fitted to the seat leg pipe And a cylindrical stopper is fixed to the outer periphery of the seat leg pipe and the stopper is fixed.
Providing a plurality of paths of fixed positions in the vertical direction, the vehicle with the tilting direction of the slant cut the physician該互forming the slant cut to conform to each other in upper and lower ends of the stopper of the holder
Characterized in that it is installed so as to face forward .

[0008]

[Action] The present invention is by adopting the configuration of the above-mentioned, Sea
Bevel cut at a predetermined height on the seat leg pipe with
When the stopper is fixed with the opening facing downward and the sheet leg pipe is inserted into the holder, the oblique cut at the lower end of the stopper hits the oblique cut at the upper end of the holder . Then, sliding the inclined surface of each other cut through the sheet dead load, mutual slant
The cuts abut, and the seat is fixed facing the front of the vehicle body .

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 3, the electric tricycle 7 is provided with a seat 9 on which a driver sits and a handle 11 for operating a front wheel 10 and the like on a body frame 8 and a battery (not shown) mounted thereon.
By driving the motor 12, the rear wheel 13 is rotated to travel. The handle 11 can be tilted onto the vehicle body frame 8 by a joint 15 connected to a bearing 14 provided on the vehicle body frame 8 so as not to be obstructed during transportation. The seat 9 is fixed by inserting a seat leg pipe 17 fixed to a lower portion of the seat 9 into a cylindrical holder 16 erected on the vehicle body frame 8.

As shown in FIGS. 1 and 2, a cylindrical holder 16 is provided.
Is erected through the vehicle body frame 8 and its joint with the vehicle body frame 8 is welded. The seat leg pipe 17 inserted into the holder 16 is provided with a plurality of holes 17a penetrating therethrough at intervals in the axial direction, and a hole 18a matching the hole 17a is provided.
Is inserted through the seat leg pipe 17. The position of the hole 17a is selected, and a bolt 19 is inserted into the hole 17a and the hole 18a and tightened via a nut 20, so that the hole 17a is fixed at an arbitrary height.

A cut 16a at the upper end of the holder 16 is cut obliquely, and a cut at the lower end of the stopper 18 facing the cut 16a.
18b is also cut diagonally so that it is aligned with each other. In the embodiment, the cut 16a of the holder 16 is inclined forward, and the cut 18b of the stopper 18 is also fastened to the seat leg pipe 17 with a bolt 19 at a position inclined forward.

When the seat is mounted on the body frame as described above, when the weight W of the seat or the occupant is applied, the component force W1 acts in the lateral direction by the cuts 16a, 18a of the holder 16 and the stopper 18, and the seat leg pipe 17 Even if there is a gap between the outside diameter of the
Since the outer peripheral wall of the holder 17 and the inner peripheral wall of the holder 16 are in pressure contact with each other, the shaking can be prevented. Further, since the bolts 19 can be tightened with the seat 9 removed or raised, the work of height adjustment is not performed in a low posture, and workability is good. Since the holder 16 is welded to the vehicle body frame 8 on the outer periphery, the inner peripheral surface is hardly deformed, and the seat leg pipe 17 can be moved smoothly.

[0013]

[Effects of the Invention] The present invention is constructed as described above. Therefore, when the seat is mounted on the vehicle body , the seat leg pa
Just insert the pipe into the holder and the stopper will contact the holder.
Touching, and the sheet is forward by the oblique cut
To stop, so you can skip adjusting the sheet orientation.
Mounting operation is easy. In addition, the oblique cut generates a forward force that pushes the holder against the seat leg pipe, so that the seat leg pipe is loosely fitted into the holder.
Even if it is done, it can be fixed without rattling. Ma
The holder and seat leg pipe are inclined in the front-rear direction of the vehicle.
Contact only at the inclined bevel
Force in the front-rear direction when a rotational force is applied to the
When these forces are applied, these forces
It is converted and damage of the holder and the like can be prevented. Furthermore, adjusting the seat height only requires changing the position of the stopper.
The zipper can be easily adjusted because it can be adjusted with the seat removed .

[Brief description of the drawings]

FIG. 1 is a perspective view of a seat attaching / detaching apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the sheet attaching / detaching device according to the embodiment.

FIG. 3 is a perspective view of the electric tricycle of the embodiment.

FIG. 4 is a perspective view of a conventional sheet attaching / detaching device.

FIG. 5 is a sectional view of a conventional sheet attaching / detaching device.

[Explanation of symbols]

 8 Body frame 9 Seat 16 Holder 16a Cut 17 Seat leg pipe 18 Stopper 18a Cut

Claims (1)

(57) [Scope of request for utility model registration] 1. A seat leg pipe is fixedly suspended from a lower portion of a seat, and a cylindrical holder for fitting and inserting the seat leg pipe is erected on a vehicle body frame, and a cylindrical holder is provided on an outer periphery of the seat leg pipe. A stopper is fixed, and a plurality of fixing positions of the stopper are provided in a vertical direction, and are aligned with the upper end of the holder and the lower end of the stopper.
An electric tricycle seat attachment / detachment device, wherein a slanted cut is formed , and the slanted cuts are installed so that the inclined directions of the cuts are directed toward the front of the vehicle.