FIELD OF INVENTION

The present invention relates generally to motorcycle frames and more particularly to the foot rest mounting arrangement in a motorcycle so as to reduce the transmittal of vibrations to the rider's foot through the footrests.

BACKGROUND

In a two-wheeler, footrests are provided on both sides of a frame structure for driver and pillion rider. Apart from safe positioning of the feet, the footrest aids the driver in shifting the gears and also in applying the brakes. A pillion footrest assembly is provided for supporting the feet of the pillion rider. In conventional two-wheelers, the rider footrest assembly includes a rider footrest bracket and a rider foot peg assembly.

Generally, the rider footrest bracket is an overhanging member with one end supported onto the frame member and another end holds the rider foot peg assembly. This is provided on either side of the motorcycle. The position of the rider foot peg assembly mostly depends upon the position of the rider on the seat of the motorcycle. Hence depending upon the vehicle layout, the position of rider foot peg assembly may vary. The overhanging member of the rider footrest bracket leads to extreme transfer of vibration to the rider foot peg assembly during motorcycle operation which usually results in rider's discomfort.

Further, these vibrations can also cause damage to the two-wheeler in case the frequency of these vibrations matches with the natural frequency of the frame structure resulting in the phenomena of resonance.

Resonance substantially increases vibrations in the frame structure and hence can lead to failure of various mechanical parts of the two- wheeler. Therefore, the challenge is to minimize the unwanted vibrations in a rider footrest assembly.

SUMMARY

Accordingly, the present invention provides a unique mounting arrangement for rider footrest wherein, the each of the footrests have two mounting point, one at the swing arm mounting axis and the other one at the main stand tube, as a consequence the footrest is isolated from the frame member because of the use of cushioning members between the swing arm mounting bracket and the frame at one mounting point and the absence of direct connectivity between the main stand tube and main stand. This results in substantial attenuation of the vibrations that are transferred to the footrest through the frame member.

These and other features, aspects, and advantages of the present subject matter will become better understood with reference to the following description and appended claims. This summary is provided to introduce a selection of concepts in a simplified form. This summary is not intended to identify key features or essential features of the claimed subject matter and not intended to limit the scope of the claimed subject matter.

BRIEF DESCRIPTION OF DRAWINGS

Figure 1 is a side view of a motorcycle embodying the present invention.

Figure 2 is a top view of a motorcycle embodying the present invention.

Figure 3 and Figure 4 is a detailed cross-section view of the footrest mounting arrangement as per an embodiment of the present invention.

Figure 5 is showing the enabling arrangement of the embodiments of the invention.

DETAIL DESCRIPTION OF THE INVENTION

With reference to the figures, a motorcycle indicated by reference numeral 01, is illustrated. The said vehicle is mainly composed of a body frame (not shown in figure), a front fork 09 attached to a head pipe of the body frame, a front wheel secured 10 to the front fork and a handle bar 11 further attached to the front fork 09 for steering the vehicle. Furthermore, an engine 12 is mounted to a rear portion of the body frame and a rear wheel 13 is secured to the body frame through the rear suspension system. Wherein, the rear suspension system comprises of a swing arm assembly 14 a shock absorber element 15 adapted to allow jounce and rebound of the rear wheel 13 with respect to the body frame. A rider 02 and pillion rider footrest 17 assemblies are provided based on the layout of the vehicle, which may vary as per the vehicle design. Further a centre stand 16 is provided to support the vehicle when parked.

A rider footrest assembly of a two-wheeler includes a rider footrest bracket 09 and rider foot pegs 02A, 02B. The rider foot pegs 02A, 02B are short extending members from the rider footrest bracket 09 for comfortable resting of the rider's foot.

In an embodiment, the challenge of eliminating the vibrations felt by a rider while riding a two-wheeler is overcome by mounting the footrest bracket 09 on the tube of centre stand 07 instead of the frame element 05 so that the footrest assembly is isolated from the main frame 03 and thus, the vibrations that are transmitted are reduced.

As described earlier footrest 02A, 02B on each side have two mounting points wherein, one of the said mounting points 06 is attached to the swing arm mounting assembly 04 that is isolated from the main frame through cushioning members such as silent block the other point 08 is attached to a horizontal tube 07 of the centre stand 16. Said horizontal tube 07 pivotally supports the centre stand 16.

As illustrated the horizontal tube of centre stand 07 is housing mounting point 08 for footrest bracket 09 thus said footrest bracket 09 does not have direct contact with the frame 03. Hence footrests 02A, 028 are isolated from the main frame 03 and consequently the transmittal of vibration from the frame 03 is considerably reduced. This arrangement is used for footrests on both sides of the vehicle.

Although the subject matter has been described in considerable detail with reference to certain preferred embodiments thereof, other embodiments are possible. As such, the spirit and scope of the appended claims should not be limited to the description of the preferred embodiment contained therein.

WHAT IS CLAIMED IS

1. A motorcycle comprising:

a) a swing arm supporting a rear wheel operatively coupled to a power unit and a centre stand secured pivotally on a horizontal tube; and

b) a foot rest assembly secured on a first mounting point and a second mounting point such that the first mounting point is secured on the swing arm mounting axis and the second mounting point on the horizontal tube of the centre stand;

2. The motorcycle, as claimed in claim 1, wherein the centre stand comprises a plurality of vertical members pivotally supported by the horizontal tube.

3. The motorcycle, as claimed in claim 1, wherein the footrest assembly is defining a right footrest and a left footrest with reference to the fonward movement direction of the
motorcycle.

4. The motorcycle, as claimed in claim 1, wherein the second mounting point is defined by a plurality of mounting bushes secured on transverse ends of the horizontal tube of the motorcycle.

5. The motorcycle, substantially as herein described with reference to, and as illustrated in, the accompanying drawings.