JPH0986465A - Auxiliary step device for scooter type motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a co-rider to ride in a comfortable posture by suspending a step frame from a body frame laid in a body cover, extending the step frame so as to be exposed downward beyond the lower end of the body cover, and fitting a step to the extended part of the frame in such a state as projected toward the side of a body. SOLUTION: An auxiliary step device 60 for a co-rider has a step frame 61 suspended from the intermediate frame part 7b of a rear frame 7, and the step frame 61 is extended beyond the lower end of a side cover. The extended part 65 of the step frame 61 is fitted with a plate type step 72. Furthermore, the step frame 61 is bolted to the intermediate frame part 7b at three positions of the front end of a horizontal part 62, the upper end of an arm 64 erected approximately from the intermediate part of the horizontal part 62 and the upper end of a rear vertical part 63. Also, the rear vertical part 63 has a channel type support 68 fixed to the upper end thereof, and this support part 68 is coupled to the hut type cross sectional projected back of a bracket 89, and bolted thereto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary step device for a two-seater scooter type motorcycle.

[0002]

2. Description of the Related Art Generally, a two-seater scooter-type motorcycle is provided with a double seat on which a driver and a passenger are seated, and a floor panel on which a driver rests his foot is provided in a front part of a vehicle body. The rear step of the vehicle is equipped with an auxiliary step for stepping on the foot. Various improvements have been made to the auxiliary step so that the passenger can ride in a comfortable posture. For example, Japanese Patent Publication No. 6-
No. 13307 "Auxiliary footrest device for scooter type vehicle"
There is also a technology of directly providing auxiliary steps on the body cover.

The above technique is shown in FIGS. 1 and 3 of the publication.
According to the drawing, the rear frame 16 (the numbers are cited in the publication. The same applies hereinafter) is provided with a front step portion 16A corresponding to the upper edge height of the rear wheel 32, and near the rear portion of the front step portion 16A. The retractable auxiliary footrests 66a and 66b (corresponding to auxiliary steps) are fixed. Auxiliary footrests 66a, 6
6b is a bar type (pillion step), and is stored by being tilted along the lower edge of the rear cover 48 when there is no passenger.

In the above technique, auxiliary steps are integrally formed on the lower rear edges of both side surfaces of the body cover, and the auxiliary steps are arranged above the power unit.

[0005]

However, in the above technique, the auxiliary footrests 66a, 66a,
Since 66b is arranged, the auxiliary footrests 66a and 66b are necessarily in the high position and are of the bar type. For this reason, it is not always easy for the passenger to get on and off, and it is not easy because the user's legs remain bent. Further, in the above technique, the position of the auxiliary step is limited and the step width is also small due to the convenience of molding the body cover. For this reason, it cannot be said that the auxiliary step is easy for the passenger to get on and off and to rest for a long time.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an auxiliary step device for a scooter type motorcycle that allows a passenger to easily get in and out of the vehicle and can ride in a comfortable posture.

[0007]

In order to achieve the above object, the invention according to claim 1 provides a body cover, which is provided with a seat having a seat for a passenger, and covers the body frame and the lower portion of the seat. In a scooter-type motorcycle equipped with, a step frame is hung from the body frame in the body cover, and the step frame is exposed and extended downward from the lower edge of the body cover, and a plate-shaped extension portion is formed. The step is characterized in that the step is attached to the side of the vehicle body. Here, the plate-like step is a generic term for a step in which a passenger places his or her foot on a flat plate, and is, for example, a substantially rectangular body in plan view. The plate-shaped step, which has a wide step space and is easy to put on, can be extended to a position where it is easy for the passenger to use, so it is easy for the passenger to get on and off, and to ride in the scooter-type motorcycle in a comfortable posture. You can For example, by setting the floor panel at the same height as the floor panel on which the driver puts his / her feet, the passenger can ride in the same comfortable posture as the driver. Moreover, since most of the step frame is covered with the body cover, the appearance (look) is good. Furthermore,
Since the plate-shaped steps are on the outside of the body cover, the body cover can be easily attached and detached, and the workability of maintenance and inspection of the power unit etc. is good.

According to a second aspect of the present invention, the step frame is passed between the lower edge of the body cover and the swing type power unit at the upper limit position. The position of the plate-shaped step is not limited by the arrangement of the swing-type power unit, and the arrangement including the mounting height can be freely set, increasing the degree of freedom in design.

According to a third aspect of the present invention, the plate-shaped step is fixed to the extending portion. The strength of the step is further increased, and the passenger can also step on and off with his / her foot. In addition, when the passenger rides, there is no step operation for taking in and out, unlike the conventional retractable type, and the hands are not soiled.

According to a fourth aspect of the present invention, the plate-shaped step is attached to the extending portion so as to be vertically foldable, and furthermore, the step is elastically urged toward the exposed side by a spring. When an external force is applied to the step, the step temporarily falls against the elastic force of the spring. Therefore, even if an impact load or the like acts on the step, it can be sufficiently absorbed.

According to a fifth aspect of the present invention, the first step frame is hung from the vehicle body frame, and the lower portion of the first frame is bolted to the base portion of the second step frame through the body cover. It is characterized in that a plate-shaped step is attached to. The plate-shaped step, which has a wide step space and is easy to put on, can be extended to a position where it is easy for the passenger to use, so it is easy for the passenger to get on and off, and to ride in the scooter-type motorcycle in a comfortable posture. You can Further, since the first frame for steps also serves as the fixing means for the body cover and the fixing means for the second frame for steps, the mounting work to the vehicle body frame becomes easy. Furthermore, the body cover and the plate-like steps can be removed simply by removing the bolt connection, which improves the workability of maintenance and inspection of the power unit and the like.

According to a sixth aspect of the present invention, in a scooter type motorcycle having a seat provided with a seat portion for a passenger on a vehicle body frame, and a body cover for covering the vehicle body frame and the periphery of the seat lower portion, an inner surface of the body cover is provided. The base of the step frame was bolted to the step frame, the step frame was exposed below the lower edge of the body cover and extended, and a plate-shaped step was attached to the extension of the step frame so as to project to the side of the vehicle body. Is characterized by. A plate-shaped step with a wide step space that makes it easy to put your foot on
Because it can be extended to a position where passengers can easily use it,
Passengers can easily get in and out of the scooter type motorcycle with a comfortable posture. Further, since the step frame is attached to the body cover, the plate-like step can be removed by simply removing the body cover, which facilitates maintenance and inspection work of the power unit and the like. Furthermore, since the base portion of the step frame is fixed to the inner surface of the body cover, the stop portion of the step frame is covered with the body cover, and the appearance (look) is good.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. First, a first embodiment will be described with reference to FIGS. FIG. 1 is a side view of a scooter type motorcycle according to the present invention. The scooter type motorcycle 1 is a two-seater motorcycle and includes a body frame 2, a body cover 10 covering the body frame 2, a front wheel 21, It includes a rear wheel 22, a seat (seat) 23, a power unit 41 and the like. The seat 23 is a double seat provided with a seat portion on which a driver and a passenger can sit. 25 is a spare tire,
Rear carrier 26 and support 2 at the rear of the body frame 2
Mounted at 7.

The body frame 2 includes a head pipe 3, a front fork 4 operably supported by the head pipe 3, and a handle 5 connected to the front fork 4.
And a down tube 6 extending rearward and downward from the head pipe 3, and a rear frame 7 connected rearward from the lower end of the down tube 6. A front wheel 21 is suspended from a lower end of the front fork 4. The rear frame 7 has a substantially elliptical shape in a plan view, and a pair of left and right front frame portions 7a (only one of which is shown in the figure) extending rearward from the lower end of the down tube 6 substantially horizontally, and these front frame portions. 7a
It is composed of a pair of left and right intermediate frame portions 7b extending obliquely rearward and upward from the rear portion, and a rear frame portion 7c interconnecting the rear ends of these intermediate frame portions 7b.

The body cover 10 includes a front cover 11 and a front side cover 12 that cover the front part of the head pipe 3 and the upper part of the front wheel 21, a handle cover 13 that covers the periphery of the steering wheel 5, and a leg shield that covers the front of the driver's legs. 14 and a floor panel 1 supporting the driver's feet
5, a center cover 16 covering the front portion of the intermediate frame portion 7b, a side cover 17 and an under cover 18 covering the rear side surfaces of the body frame 2, and a rear upper cover 19 covering an upper rear portion of the body frame 2. . A rear fender 31 that covers an upper portion of the rear wheel 22 is disposed at a rear portion of the side cover 17. Thus, the body cover 1
Numeral 0 covers the body frame 2 and the periphery of the lower portion of the seat 23.

FIG. 2 is a side view of the rear portion of the scooter type motorcycle according to the present invention. The power unit 41 is a two-cycle forced air cooling type engine 42 and a continuously variable transmission for transmitting the output of the engine 42 to the rear wheels 22. The continuously variable transmission 43 is connected to the rear wheel 22. Reference numeral 44 is an engine air cleaner.

The rear suspension of the motorcycle 1 is of a swing arm type in which the power unit 41 is a swing arm, and the power unit 41 is suspended by a rear cushion (damper) 47 at the rear portion of the rear frame 7. That is, in the rear suspension, the front portion of the power unit 41 is vertically swingably attached to the front portion of the intermediate frame portion 7b via the link mechanism 46, and the rear portion of the power unit 41 is attached to the intermediate frame portion 7b via the rear cushion 47. It is a structure attached to the rear part.

The motorcycle 1 has a storage box 51 on the front side and a fuel tank 52 on the rear side in the rear part, below the seat 23.
And the storage box 51 and the fuel tank 52
Is fixed to the intermediate frame portion 7b. Storage box 5
Numeral 1 is a box shape which is open at the upper side, and its flange 51
The seat 23 is attached to the upper front portion of the a by a hinge 53. The storage box 51 has, for example, a helmet 54
To store. Further, the motorcycle 1 is provided with an auxiliary step device 60 on the left side of the vehicle body at the lower rear part (on the front side in this figure) for the passenger to put his / her foot on. In addition, 56 is a battery and 57 is a main stand.

FIG. 3 is a side view of the auxiliary stepping device (first embodiment) according to the present invention. The auxiliary stepping device 60 includes a step frame 61 hung from an intermediate frame portion 7b of the rear frame 7 and a step frame 61 for this step. The plate-shaped step 72 is fixed to the extending portion 65 below the frame 61. The intermediate frame portion 7b is inclined rearward and upward from the rear portion of the front frame portion 7a as described above, and corresponds to the inclination of the intermediate frame portion 7b.
1 has a substantially inverted L shape composed of a horizontal portion 62 and a rear vertical portion 63, and is made of a pipe material.

In the step frame 61, three points, that is, a front end of the horizontal portion 62, an upper end of an arm 64 standing upright from approximately the middle of the horizontal portion 62, and an upper end of the rear vertical portion 63 are bolted to the intermediate frame portion 7b. It has been stopped. As will be described in detail in FIG. 8, in the step frame 61, the vicinity of the corner between the horizontal portion 62 and the rear vertical portion 63, that is, the extending portion 65 shown by hatching in this figure is directed to the outside (front side in this figure) The extending portion 65 has a configuration in which the plate-shaped step 72 is horizontally arranged.

Reference numeral 81 is a bracket for mounting the rear cushion 47, 82 is a bracket for mounting the rear portion of the storage box 51 and the front portion of the fuel tank 52, 83 is a bracket for mounting the rear portion of the fuel tank 52, and 84 is a main stand 57. The brackets 81 to 84 are welded to the intermediate frame portion 7b. 85
Is a reinforcing plate, and the intermediate frame portion 7b and the bracket 84
It reinforces the space between the base and the base.

FIG. 4 is a sectional view taken along line 4-4 of FIG. 3, in which the horizontal portion 62 has a front end fixed with a support 66 having an L-shape in plan view.
The support 66 is connected to a reinforcing plate 85 welded to the intermediate frame portion 7b with a bolt 69.

FIG. 5 is a sectional view taken along line 5-5 of FIG. 3, in which the bracket 88 welded to the intermediate frame portion 7b is a hat-shaped sectional body that is open to the outside in plan view. The arm 64 has a cylindrical support 67 at its upper end, and this support 67 is connected to a bracket 88 by a bolt 69.

FIG. 6 is a sectional view taken along line 6-6 of FIG. 3, in which the bracket 89 welded to the intermediate frame portion 7b is a hat-shaped sectional body that is open to the inside in plan view. The rear vertical portion 63 has an upper end fixed to a channel-shaped support 68 that is open to the inside in a plan view. The support 68 is fitted to the protruding rear surface of the hat-shaped cross section of the bracket 89, and is joined by a bolt 69. .

FIG. 7 is a sectional view taken along the line 7-7 of FIG. 3, in which the auxiliary step device 60 extends a step arm 71 obliquely upward from the extension portion 65 to the outside.
A plate-shaped step 72 is fixed to the tip of the plate-shaped step 72, and a step rubber 73 made of a rubber material is covered on the upper surface of the plate-shaped step 72 and fixed with a screw 74. Therefore, the plate-shaped step 72 is fixed to the extending portion 65. The plate-shaped step 72 is a step in which a passenger places his / her foot on a flat plate, and is, for example, a substantially rectangular body in a plan view.

FIG. 8 is a rear view of the auxiliary stepping device (first embodiment) according to the present invention, showing the positional relationship of the auxiliary stepping device 60 when the motorcycle is viewed from the rear. The rear frame 7 arranged on the upper side of the rear wheel 22 hangs the step frame 61 from the left intermediate frame portion 7b,
The step frame 61 extends from the inside of the side cover 17 by bypassing the lower edge 17a and extends to the outside.
The plate-shaped step 72 is attached to the. That is, the rear frame 7 hangs a step frame 61 from the vehicle body frame 2 inside the body cover 10, and exposes the step frame 61 below the lower edge of the body cover 10 and extends it. The step 72 is attached so as to project to the side of the vehicle body. For this reason, the step frame 61 passes between the lower edge 17a of the side cover 17 and the swing type power unit 41 at the upper limit position indicated by the imaginary line.

Now, returning to FIG. 3 again and explaining,
The mounting position of the support 68 is located below the line L connecting the mounting position of the support 66 and the mounting position of the support 67. That is, three supports 66, 67,
The attachment positions of 68 are arranged in a triangular shape (in this figure) in a side view. Therefore, the supports 66, 67, 68 can be stably supported against the load of step 72.

Next, the operation of the auxiliary step device 60 having the above structure will be described with reference to FIG. Step frame 61
Is exposed below the lower edge 17a of the side cover 17 and extends (extends from the inside of the side cover 17 by bypassing the lower edge 17a to the outside). The plate-shaped step 72 is largely extended to the outside so as to place the plate-shaped step 72 at a position where it is easy for the user to use. Therefore, the plate-shaped step 72 is not limited by the arrangement of the side cover 17, and the arrangement including the mounting height can be freely set, and the degree of freedom in design increases. Therefore, the plate-shaped step 72
The arrangement makes it easy for a passenger to get on and off the motorcycle 1, and
It can be set so that you can ride in a comfortable posture.

For example, as shown in FIG. 1, the plate-shaped step 72 has a relatively low height of the floor panel 1.
The height from the floor panel 15 to the upper surface of the seat 23 is substantially the same as the height from the plate-shaped step 72 to the upper surface of the seat 23.
For this reason, the height of the plate-shaped step 72 is low, so that a passenger can easily get on and off like a driver. If the height dimension from the plate-shaped step 72 to the upper surface of the seat 23 is too small, the passenger rides with his / her legs bent forcibly.
3 The height is set to be approximately the same as the height up to the upper surface, and the passenger can ride in the same comfortable posture as the driver, and is therefore less tired.

On the other hand, the swing type power unit 41 is
It swings up and down between the position shown by the solid line and the position shown by the imaginary line in FIG. However, since the step frame 61 passes over the power unit 41 at the upper limit position, the auxiliary step device 60 does not hit the power unit 41. Therefore, the plate-shaped step 72 is used for the power unit 4
There is no limitation by the arrangement of 1, and the arrangement including the mounting height can be freely set, and the degree of freedom of design increases. Therefore, the plate-shaped step 72 can be arranged so that a passenger can easily get on and off the motorcycle 1 and can ride in a comfortable posture. The auxiliary step device 60 is provided with a plate-shaped step 72 so that the step can be easily put on, and the step space is widened. Therefore, the passenger can easily get in and out of the vehicle, can ride in a comfortable posture, and is not tired even if he / she puts his / her foot on for a long time.

Next, a second embodiment will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. FIG. 9 is a side view of an auxiliary step device (second embodiment) according to the present invention, in which a plate-shaped step 72 is attached to an extending portion 65 so as to be vertically foldable, and a torsion spring 91 (with a resilient means). It is characterized in that it springs to the exposed side shown by the solid line in this figure. That is, in the auxiliary step device 60, the step arm 71 is attached to the extension portion 65 by the pin 92 so as to be vertically foldable, and the plate-shaped step 72 is fixed to the tip of the step arm 71. Reference numeral 93 is a stopper for determining the exposed position of the step arm 71.
According to the second embodiment, when the external force F acts on the plate-shaped step 72, the plate-shaped step 72 temporarily falls against the elastic force of the torsion spring 91. Therefore, even if an impact load or the like acts on the plate-shaped step 72, it can be sufficiently absorbed.

Next, a third embodiment will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. FIG. 10 is a side view of an auxiliary stepping device (third embodiment) according to the present invention. The stepping first frame 94 is hung from the intermediate frame portion 7b, and the lower portion of the first frame 94 is interposed by the side cover 17. Bolt 96 to the base of the second frame 95 for steps
And the plate-shaped step 7 on the second frame 95.
2 is attached. According to the third embodiment, the first frame 94 serves both as the fixing means for the side cover 17 and the fixing means for the second frame 95, so that the attachment work to the intermediate frame portion 7b is simplified. Further, the side cover 17 and the plate-shaped step 72 can be removed only by removing the bolt connection.
Good workability for maintenance and inspection.

Next, a fourth embodiment will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. FIG. 11 is a side view of an auxiliary stepping device (fourth embodiment) according to the present invention, in which the base of a step frame 98 is bolted to the inner surface of the side cover 17, and the step frame 98 is placed under the side cover 17. It is characterized in that it is exposed and extends downward from the edge 17a, and a plate-shaped step 72 is attached to the extended portion 98a so as to project to the side of the vehicle body.

That is, in the fourth embodiment, the side cover 17 is used.
A bracket 97 is provided on the inner surface of the step frame 98, and the base portion of the step frame 98 is fixed to the bracket 97 with a bolt 99 to fix the step frame 98 to the lower edge 17a of the side cover 17.
Is extended to the outside and is extended to the outside, and a plate-shaped step 72 is attached to the extended portion 98a via a step arm 71. According to the fourth embodiment, since the step frame 98 is attached to the side cover 17, the plate-shaped step 72 can be formed only by removing the side cover 17.
The power unit 41 and the like can be easily removed, and maintenance and inspection workability is good.

In the above first to fourth embodiments, the auxiliary step device 60 is not limited to the structure arranged on the left side of the vehicle body of the motorcycle 1, for example, the structure arranged on the right side of the vehicle body or both sides of the vehicle body. It may be arranged. When the auxiliary step device 60 is arranged only on the left side or the right side of the vehicle body, a passenger can ride on the seat 23 sideways and rest his / her foot on the plate-shaped step 72. Also, when the auxiliary step device 60 is arranged on both sides of the vehicle body,
A passenger can ride over the seat 23 and rest his / her feet on the steps 72, 72 in the form of both plates.

[0036]

The present invention has the following effects due to the above configuration. According to the first aspect of the present invention, a step frame is hung from a vehicle body frame inside a body cover, the step frame is exposed and extended downward from a lower edge of the body cover, and a plate-like step is provided at the extending portion of the step frame. By mounting it by projecting it to the side, it is possible to extend the plate-shaped step, which has a wide step space and is easy to put on the foot, to a position where it is easy for the passenger to use. You can ride a scooter-type motorcycle in various postures. For example, by setting the floor panel at the same height as the floor panel on which the driver puts his / her feet, the passenger can ride in the same comfortable posture as the driver. Moreover, since most of the step frame is covered with the body cover, the appearance (look) is good. Further, since the plate-shaped step is located outside the body cover, the body cover can be easily attached and detached, and the workability of maintenance and inspection of the power unit and the like is good.

According to the second aspect of the present invention, the step frame is passed between the lower edge of the body cover and the swing type power unit at the upper limit position, whereby the position of the step is limited by the arrangement of the swing type power unit. The layout can be set freely, including the mounting height, and the degree of freedom in design increases.

According to the third aspect of the present invention, since the plate-shaped step is fixed to the extending portion, the strength of the step is further increased, and the passenger can step on and get off with his / her foot. In addition, when the passenger rides, there is no step operation for taking in and out, unlike the conventional retractable type, and the hands are not soiled.

According to the fourth aspect of the present invention, the plate-shaped step is attached to the extending portion so as to be vertically foldable, and further, when the step is applied with an external force by elastically springing toward the exposed side, The step temporarily collapses against the elastic force of the spring. Therefore, even if an impact load or the like acts on the step, it can be sufficiently absorbed.

According to a fifth aspect of the present invention, the first step frame is suspended from the vehicle body frame, and the lower portion of the first frame is bolted to the base portion of the second step frame through the body cover. By attaching the plate-shaped step to the passenger compartment, the plate-shaped step, which has a large step space and is easy to put on the foot, can be greatly extended to a position where the passenger can easily use it. You can ride a scooter-type motorcycle in various postures. Furthermore, the first frame for steps
Since the fixing means for the body cover also serves as the fixing means for the second step frame, the mounting work on the vehicle body frame becomes easy. Furthermore, the body cover and plate-like steps can be removed simply by removing the bolt connection,
Good workability for maintenance and inspection of power units, etc.

According to a sixth aspect of the present invention, the step frame is bolted to the inner surface of the body cover, the step frame is exposed below the lower edge of the body cover and extends, and a plate-shaped extension is formed on the extension. By mounting the step so that it protrudes to the side of the vehicle body, it is possible to greatly extend the plate-shaped step with a wide step space and easy to put on the foot to a position where the passenger can easily use, so that the passenger can easily get on and off. Also, it is possible to ride in a scooter type motorcycle in a comfortable posture. Further, since the step frame is attached to the body cover, the plate-like step can be removed by simply removing the body cover, which facilitates maintenance and inspection work of the power unit and the like. Furthermore, since the base portion of the step frame is fixed to the inner surface of the body cover, the stop portion of the step frame is covered with the body cover, and the appearance (look) is good.

[Brief description of drawings]

FIG. 1 is a side view of a scooter type motorcycle according to the present invention.

FIG. 2 is a side view of a rear portion of the scooter type motorcycle according to the present invention.

FIG. 3 is an auxiliary step device according to the present invention (first embodiment).
Side view of

FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;

5 is a sectional view taken along line 5-5 of FIG.

6 is a sectional view taken along line 6-6 of FIG.

7 is a sectional view taken along line 7-7 of FIG.

FIG. 8 is an auxiliary step device according to the present invention (first embodiment).
Rear view of

FIG. 9 is an auxiliary step device according to the present invention (second embodiment).
Side view of

FIG. 10 is a side view of an auxiliary step device (third embodiment) according to the present invention.

FIG. 11 is a side view of an auxiliary step device (fourth embodiment) according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Scooter type motorcycle, 2 ... Body frame, 7 ... Rear frame, 7b ... Intermediate frame part, 10 ... Body cover, 17 ... Side cover, 17a ... Lower edge, 41 ... Swing power unit, 42 ... Engine, 43 ... None Step transmission, 60 ... Auxiliary step device, 61 ... Step frame, 65 ... Extension part, 72 ... Plate-like step, 91
... Spring (torsion spring), 94 ... First frame for step, 95 ... Second frame for step, 97 ... Bracket, 98 ... Frame for step, 98a ... Extension part.

Claims (6)

[Claims] 1. A scooter-type motorcycle having a body frame provided with a seat having a seat portion for a passenger, and a body cover covering the body frame and a lower portion of the seat, wherein a frame for stepping from a body frame in the body cover to a step frame. A scooter type automatic transmission characterized in that the step frame is exposed below the lower edge of the body cover and extends, and a plate-like step is attached to the extending part of the step frame so as to project laterally of the vehicle body. Auxiliary step device for motorcycles. 2. The auxiliary step device for a scooter type motorcycle according to claim 1, wherein the step frame passes between a lower edge of the body cover and a swing type power unit at an upper limit position. 3. The auxiliary step device for a scooter type motorcycle according to claim 1, wherein the plate-shaped step is fixed to the extending portion. 4. The plate-shaped step is attached to the extending portion so as to be vertically foldable, and is elastically urged toward the exposed side by a spring. Auxiliary step device for the scooter type motorcycle described. 5. A step first frame is hung from a vehicle body frame, and a lower portion of the first frame is bolted to a base portion of the step second frame via a body cover.
An auxiliary step device for a scooter type motorcycle, wherein a plate-like step is attached to the second frame. 6. A scooter type motorcycle having a vehicle body frame provided with a seat having a seat portion for a passenger, and a body cover covering the vehicle body frame and the lower portion of the seat, the base of the step frame being on the inner surface of the body cover. A scooter type in which the step frame is exposed below the lower edge of the body cover and extends, and a plate-like step is attached to the extending portion of the step frame so as to project to the side of the vehicle body. Auxiliary step device for motorcycles.