JP4130005B2 - Step bracket device for motorcycles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a step bracket of a motorcycle, and more particularly to a multi-function intensive type.
[0002]
[Prior art]
In many cases, a step in a motorcycle is foldably attached to a step bracket attached to a vehicle body frame (as an example, Japanese Utility Model Publication No. 1-337348). On the other hand, in the case of a kick start engine, it is known that a rotation stopper for determining the rotation position of the kick pedal at the time of kicking and a brake stopper for determining the return position of the brake pedal are provided on the vehicle body side. .
[0003]
[Problems to be solved by the invention]
By the way, when adopting a kick start type engine and a type in which a kick pedal and a brake pedal are arranged on the same side of the engine, if each of the stoppers is provided separately, the number of parts increases, and further The body structure is also complicated. Therefore, it is desired to consolidate such stoppers, and the present invention satisfies this requirement.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, an invention relating to a step bracket device for a motorcycle according to the present application includes a kick start type engine, and a motorcycle in which a kick pedal and a brake pedal are arranged on the same side of the engine. A step bracket is provided on the side and lower side of the kick pedal. The step bracket includes a plate-like main body that is bolted to the vehicle body frame, a stay to which the step is attached, and a stopper plate. Rutotomoni provided a rotation stopper when the rotational position of a brake stopper that determines the return position of the brake pedal,
The stay is welded to the main body adjacent to the bolted portion of the main body .
[0005]
【The invention's effect】
Since step brackets that are always provided on both sides of the vehicle body are used, and a rotation stopper and brake stopper are provided here, multiple functions can be integrated into one step bracket, reducing the number of parts and reducing costs. The body structure is also simplified.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
First, the structure of a motorcycle to which the embodiment is applied will be outlined. FIG. 2 is a left side view in the traveling direction of the appearance of the motorcycle, and FIG. 3 is a partially enlarged top view thereof. The motorcycle is configured as an American type, and includes a front wheel 1 and a rear wheel that form a long wheel base. 2. It has characteristic structures such as a front fork 3 having a large caster angle, a drop handle 4, a teardrop type fuel tank 5, a tandem seat 6 having a relatively low mounting position, and a backrest 7 provided at the rear part.
[0007]
The engine 8 disposed between the front and rear wheels is a horizontal engine in which an air-cooled cylinder portion 9 is laid substantially horizontally in the front-rear direction. The engine 8 sucks air-fuel mixture from a carburetor 10 disposed above the cylinder portion 9 and is exhausted through an exhaust pipe 11 and a muffler 12 that extend rearward from the lower portion of the cylinder portion 9.
[0008]
The carburetor 10 is supplied with fuel from the fuel tank 5 and is supplied with fresh air from the rear air cleaner 13. The carburetor 10 is disposed in a space sandwiched between a pair of left and right front side covers 14 provided below the fuel tank 5.
[0009]
The front side cover 14 is provided in a space below the front portion of the fuel tank 5 and above the cylinder portion 9, and the front end portion covers the side of the horn 15, and various electrical components are placed between the horn 15 and the vaporizer 10. It comes to arrange. The horn 15 is also an electrical component.
[0010]
The engine 8 is supported by a front portion of a vehicle body frame having a substantially loop shape in a side view (FIG. 2), and the front portion includes a head pipe 16, an upper pipe 17, a lower pipe 18, and a pivot plate 20, and the upper pipe 17 Extends rearward from the head pipe 16 along the center of the vehicle body to support the fuel tank 5, and is bent at substantially the center of the vehicle body and extends downward to be connected to the pivot plate 20.
[0011]
The lower pipe 18 is provided as a pair of left and right, extends from the head pipe 16 in the vehicle width direction and extends downward, bends below the cylinder portion 9 and further toward the rear, and overlaps the side of the pivot plate 20 in a side view. And is connected to a cross pipe 21 (FIG. 2) extending through the pivot plate 20 and extending in the vehicle width direction.
[0012]
The rear portion of the vehicle body frame extends from the bent portion of the upper pipe 17 in a pair of left and right sides substantially horizontally and supports the tandem seat 6, and the lower pipe 18 continues from the side of the pivot plate 20 obliquely. A side frame 23 that extends rearward and connects to an intermediate portion of the seat rail 22 has a substantially truss shape.
[0013]
The pivot plate 20 supports the front end portion of the rear fork 24 so as to be swingable in the vertical direction by the pivot shaft 25. The rear fork 24 extends rearward and the rear wheel 2 is rotatably supported at the rear end portion. The A shock absorber 26 is provided between the connecting portion of the seat rail 22 and the side frame 23 and the rear end portion of the rear fork 24.
[0014]
The rear wheel 2 is chain-driven by a chain 29 wound between a driven sprocket 27 concentrically provided on a side surface thereof and a drive sprocket 28 of the engine 8.
[0015]
The front fork 3 is a known telescopic type, and an upper portion thereof is rotatably supported on the head pipe 16 via a bottom bridge 30 and a top bridge 31. A bullet-type headlight 32 and a pair of left and right front blinkers 33 are supported on the bottom bridge 30, and a meter 34 is supported on the top bridge 31.
[0016]
In the figure, reference numeral 35 denotes a front fender, 36 denotes a front number plate, 37 denotes a carrier, 38 denotes a rear fender, 39 denotes a tail lamp, 40 denotes a mud guard, 41 denotes a rear winker, and 42 denotes a rear number plate.
[0017]
Further, 43 is a change pedal, which is provided at a forward position below the cylinder portion 9. 44 is a rider step, 45 is a main stand, 46 is a step bracket attached to the side frame 23, and a tandem step 47 is attached to the rear end thereof.
[0018]
As shown in FIG. 3, a brake pedal 48 is provided in the vicinity of the rider's step 44 provided at a symmetrical position on the right side of the vehicle body, and a kick pedal 49 is provided behind the brake pedal 48.
[0019]
Next, the step bracket will be described. 1 is a view showing the vicinity of a rider's step 44 portion on the right side of the vehicle body, FIG. 4 is a view showing this portion from the rear of the vehicle body, FIG. 5 is a plan view of the step bracket, and FIG.
[0020]
First, in FIGS. 1 and 4, step brackets 50 are attached to the side surface of the lower pipe 18 passing under the engine 8 in the front-rear direction by bolts 51 at two locations, and obliquely provided on the front end side so as to protrude sideways. A rider's step 44 is foldably attached to a pair of stays 52 parallel to each other.
[0021]
A rotation stopper 53 and a brake stopper 54 are integrally provided below the step bracket 50. The rotation stopper 53 restricts the rotation when the kick pedal 49 is rotated downward (in the direction of arrow A in FIG. 1), and the brake stopper 54 restricts the return after the brake pedal 48 is depressed. It has become.
[0022]
The kick pedal 49 is foldably attached to one end of the kick arm 55, the other end of the kick arm 55 is provided in the transmission of the engine 8 in parallel with the vehicle width direction, and one end is one side of the engine 8. The kick start mechanism is connected to the shaft end portion of the kick shaft 56 protruding from the base, and the kick shaft 49 is depressed to rotate the kick arm 55 in the direction indicated by the arrow A, whereby the kick shaft 56 rotates to start the engine 8. I am doing.
[0023]
A portion of the kick arm 55 in the vicinity of the kick shaft 56 is greatly bent, and a substantially intermediate portion on the distal end side from the bent portion 57 is a contact portion with the rotation stopper 53.
[0024]
The brake arm 60 with the brake pedal 48 attached to the tip is rotatably supported by a stay 61 attached to the lower pipe 18 behind the step bracket 50. A portion supported by the stay 61 forms a rotating shaft 62 bent in the vehicle width direction, and a lever 63 is attached to one end thereof so as to rotate integrally.
[0025]
One end of a rod 64 for operating a rear wheel brake (not shown) is attached to the other end of the lever 63, and when the brake pedal 48 is depressed, a rotating shaft 62 that is continuously integrated with the brake arm 60 is rotated. The lever 63 is moved to rotate integrally, and the rear wheel brake is actuated via the rod 64 at the tip of the lever 63 for braking.
[0026]
A stay 65 projecting sideways is provided on the side surface of the brake arm 60 in the vicinity of the step bracket 50, and an adjustment bolt 66 is attached thereto. The adjustment bolt 66 is a member that abuts against the brake stopper 54 and regulates the amount of return when the brake pedal 48 is depressed and then returned. Can be adjusted.
[0027]
As apparent from FIGS. 5 and 6, the step bracket 50 is provided with a through hole 71 of the bolt 51 in the main body 70 that contacts the side surface of the lower pipe 18, and a stay 52 is welded to the tip. .
[0028]
A substantially triangular stopper plate 72 projects integrally from the lower end of the main body 70 in a side view in a side view (FIG. 5), and the tip of the stopper plate 72 forms a brake stopper 54 that is inclined so as to be slightly turned up. The head of the adjustment bolt 66 is in contact with the lower surface.
[0029]
The edge portion of the stopper plate 72 located on the rear side of the vehicle body is a straight line that is substantially parallel to the vehicle width direction, and the rotation of which the rotation is restricted by the kick arm 55 that is rotated at the time of kick start comes into contact therewith. It is a stopper 53.
[0030]
Therefore, the tip of the stopper plate 72 protruding to one side surface of the main body 70 forms the brake stopper 54, the edge on the rear side of the vehicle body forms the rotation stopper 53, and the two stopper portions are simultaneously formed by one stopper plate 72. Is formed.
[0031]
Next, the operation of this embodiment will be described. 1 and 2, when the kick pedal 49 is released and stepped on, the kick arm 55 is rotated in the direction indicated by the arrow A to start the engine, and the kick arm 55 is brought into contact with the rotation stopper 53 to be within a predetermined rotation range. Stopped.
[0032]
If the foot is released after the brake pedal 48 is depressed, the brake arm 60 rotates in the return direction (counterclockwise in FIG. 1) around the support point of the stay 61, and the head of the adjustment bolt 66 is braked. By contacting the stopper 54, the stopper 54 is also stopped with a predetermined return amount.
[0033]
That is, while the stopper plate 72 of the step bracket 50 is a single member, it has two stopper functions of the rotation stopper 53 and the brake stopper 54 at the same time.
[0034]
In addition, since the step bracket 50 originally supports the rider's step 44, a total of three functions can be integrated into the step bracket 50, thereby achieving multiple functions.
[0035]
Therefore, the number of parts can be reduced, and as a result, the cost can be reduced. In addition, the vehicle body structure can be simplified compared to the case where a plurality of stoppers are provided separately. Further, since the rotation stopper 53 and the brake stopper 54 can be formed only by the stopper plate 72, the shape of the step bracket 50 becomes simple and the manufacture becomes easy.
[0036]
In addition, since the rider's step 44 needs to be provided in most vehicles in advance, the step bracket 50 is inevitably provided in most vehicles in advance. It is easy to provide a stopper.
[Brief description of the drawings]
FIG. 1 is a view showing the vicinity of a rider's step portion on the right side of a vehicle body. FIG. 2 is a left side view in a traveling direction in the appearance of a motorcycle. FIG. 3 is an enlarged top view of the portion. Fig. 5 is a plan view of the step bracket. Fig. 6 is a side view of the step bracket.
8: engine, 18: lower pipe, 23: side frame, 44: rider step, 48: brake pedal, 49: kick pedal, 50: step bracket, 52: stay, 53: rotation stopper, 54: brake stopper, 55: Kick arm, 56: Kick shaft, 60: Brake arm, 66: Adjustment bolt

Claims (2)

In a motorcycle equipped with a kickstart engine and a kick pedal and a brake pedal arranged on the same side of the engine, a step bracket is provided on the side and below the kick pedal. This step bracket is bolted to the body frame. It has a plate-like main body to be tightened, a stay to which a step is attached, and a stopper plate. The stopper plate has a rotation stopper when the kick pedal is rotated and a brake stopper that determines the return position of the brake pedal provided Rutotomoni,
The step bracket device for a motorcycle, wherein the stay is welded to the main body portion adjacent to the bolt fastening portion of the main body portion . The stopper plate has a substantially triangular shape in plan view and protrudes to the side, and the rear edge of the stopper body of the vehicle body forms a straight line that is substantially parallel to the vehicle width direction to form the rotating stopper and to the side. 2. The step bracket device for a motorcycle according to claim 1, wherein a front end portion of the protruding stopper plate forms the brake stopper.

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