FIELD OF THE INVENTION

The invention generally relates to a centre stand stopper mechanism for a motorcycle and more particularly to the centre stand stopper mechanism facilitating better ground clearance for the motorcycle.

BACKGROUND OF THE INVENTION

Generally, while riding the motorcycle, centre-stand ground clearance reduces due to increase in rider & pillion weight as the frame and the connected support bracket for centre stand provided on the muffler comes down due to vehicle suspension which results in movement of the centre stand. Ground clearance of the centre stand also reduces due to jerks, speed breakers or any other obstacle as the rear suspension system takes the system up, but due to presence of bracket on the muffler side does not let the centre stand move.

In some cases, centre stand stopper is provided on the chassis or the engine casing of the vehicle, but in that case centre stand of the vehicle hits the transmission cover of the engine or the transmission cover of the vehicle.

So, for increasing the dynamic ground clearance of centre stand and to protect the transmission cover of vehicle from hitting, an effective, economic and simple arrangement for said centre stand support is required.

SUMMARY OF THE INVENTION

Main objective of the present invention is to provide a centre-stand stopper mechanism for a motorcycle which has a rear suspension system fixed with a frame on one end and with a transmission assembly on the other end. Said transmission assembly is secured in a cover, a stand support unit fixed at bottom of said cover such that the stand support unit is sandwiched between the cover and the centre-stand.
Another objective of present invention is to provide a predefined space between the centre stand and the exhaust muffler in order to balance the downward and upward forces on the motorcycle. Due to space available between the centre stand and the muffler, said centre stand can freely follow the movement of transmission assembly during retrenchment of the rear suspension system.

Thus at time of any jerk or speed breakers or any other obstacle centre stand moves up with rear suspension system and hence ground clearance increases and prevent motorcycle damage. At the time of downward weights on the motorcycle like rider/pillion weight lowering of the frame will also not interrupt in upward movement of the centre stand because of sufficient space available between the centre stand and muffler.

BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the detailed description given herein below and the accompanying drawing which are incorporated in and constitute embodiments of the invention.

Provided drawings illustrates several aspects of the invention and together with a description of the embodiments serve to explain the principles of the invention. Given drawings are not limiting the scope of the present invention. A brief description of the drawings is as follows:

Figure 1 is showing the claimed arrangement in a motorcycle.

Figure 2 and Figure 3 are describing the enablement and benefit of the claimed inventions.

Figure 4 is depicting the assembly details of the claimed stopper arrangement in the motorcycle.

DETAILED DESCRIPTION OF THE INVENTION

The embodiments disclosed below are not intended to be exhaustive or to limit the invention to the precise forms disclosed in the following detailed description. Rather, the embodiments are chosen and described for enablement purpose of the invention. The invention may have application to all types of motorcycles. The scope of the invention is entirely based upon the claims provided.

Reference is made Figure 1, in order to show claimed arrangement of the invention in motorcycle. Rear suspension assembly 104 is fixed with the frame 105 on one end and with the swing arm 106 on the other side. Transmission cover 102 is covering the transmission assembly or the transmission chain 100 secured around the swing arm 106.

Centre stand 101 is secured at the bottom portion of the frame 105 and rests against a stand stopper mechanism 103 secured on lower part of the transmission cover 102.

Further, reference is made to Figure 2 for explanation of the enablement of the claimed invention. As the force P increases at the bottom of the vehicle, e.g. due to speed breaker etc, rear suspension mechanism 104 contracts in order to balance external force P.

As the rear suspension mechanism 104 contracts an upward force S works and pulls up the connected swing arm 106 in upper direction T. With movement of the swing arm 106 and transmission cover 102 in upper direction T, centre stand 101 resting against the centre stand stopper mechanism 103 also moves up. Said movement of centre stand 101 provides more ground clearance for centre stand 101 over speed breakers and other obstacles.

As shown in Figure 3, said centre stand 101 is able to move up with the movement of the rear suspension mechanism 104 and the transmission cover 102 because there a space C is available for the movement of the centre stand 101 below the exhaust muffler 107 on the other side of the vehicle.

Further, in case of weight increase R on the top of the vehicle e.g. multiple riders force F acts downwards and hence the frame 105 comes down a bit which results in lowering down the connected exhaust muffler
107. As there is a space C present below the exhaust muffler 107, its movement does not affect the position of the centre stand 101.

Figure 4 further explains the assembly of the said centre stand 101 and centre stand support mechanism 103. Said centre stand support mechanism 103 is inserted inside the transmission cover 102 such that it does not have any reverse movement and remain fixed there to support centre stand 101 in no support condition.

WHAT IS CLAIMED IS

1) A motorcycle comprising a rear suspension system fixed with a frame at one end and with a transmission assembly on the other end such that transmission assembly is secured in a transmission cover an exhaust muffler extending rearwardly from the engine and a centre stand stopper mechanism comprises a stand support unit fixed at bottom of the transmission cover such that said centre stand is supported at the stand support unit, characterised in that a predefined space is provided between the centre stand and the exhaust muffler such that said centre stand follows the movement of transmission assembly during retrenchment of the rear suspension system.

2) The motorcycle, as claimed in claim 1, wherein the centre stand support unit is secured between the centre stand and the transmission cover at free condition of the centre stand.

3) The motorcycle, as claimed in claim 1, wherein the predefined space between the exhaust muffler and the centre stand is configured to balance the downward and upward forces on the motorcycle.