Auxiliary stand for a motorcycle

Field of invention:

The present invention relates to an "Auxiliary stand for a motorcycle" and more particularly an auxiliary stand for motorcycle used for luggage carrying.

Background:

Motorcycles are provided with a centre stand or side stand for parking. These stands are normally designed for light loads and are located between front and rear wheels. However a few customers tend to use the motorcycles for carrying additional luggages on the carrier provided at the rear end of the seat. Under this : loaded condition, the weight of additional luggage puts load on the rear wheel area and the effort required putting on the centre stand increases substantially leading to difficulty in operating the centre stand. In the event of using the side stand, the vehicle will be unstable due to excessive load on the rear and due to single point support of side stand, the vehicle will tend to lean and fall on the side making it unsafe for customer.

Generally centre stand has a simple construction of welded tubular legs with a flattened bottom support plate type structure. A small lever is fixedly welded to bottom portion of the stand to give little leverage while putting on the stand. The short leverage provided on stand makes it difficult to apply higher pressure and load on stand to bring it to on position with higher load in the rear side of the vehicle. Even providing any leverage by increasing the length of the lever provided on centre stand is difficult due to its proximity with otter parts of the vehicle which needs a major change in several parts of the vehicle.

Hence the objective of the invention is to overcome the above problem and ' provide the vehicle more stability when the vehicle is excessively loaded.

Summary of the Invention:

The main object of the present invention is to provide parking to the motorcycle in upright condition when considerable loads are kept or tied to the rear part of the - seat or carrier without vehicle falling sideways.

Another object of the present invention is to shift the stand operating point from ahead of rear wheel to rear of rear wheel.

Another object of the present invention is to provide substantial leverage to put on the stand.

Another object of the present invention is to provide a retrofittable stand on vehicles as an accessory fitment.

Another object of the present invention is to provide a rotatable lever on the auxiliary stand to improve the mechanical advantage of using the stand.

Another object of the present invention is to provide easy operating means for the auxiliary stand thereby eliminating the lifting operation of the rear wheel above the ground.

Another object of the present invention is to mount the auxiliary stand on the swing arm such that the working of rear suspension when loaded does not affect the operation of the stand.

Yet another object of the present invention is to provide wider support for the stand by increasing the lateral width of the stand.

Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

Brief description of the Drawings

The present invention will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein

Figure.1 illustrates a conventional motorcycle.

Figure. 2 illustrate left side view of rear wheel with auxiliary stand in OFF condition.

Figure. 3 showing rear wheel from rear side with stand in ON condition.

Description of the invention:

Embodiments of the present invention now be described with reference to the accompanying drawings. In the following description, "front", "rear", "upper, "lower", "right", "left" and "bottom" represent directions viewed from the perspective of the vehicle rider.

The present invention relates to the auxiliary stand for a motorcycle, First a conventional motorcycle without the auxiliary stand will be roughly described. Drawing reference to Figure. 1 a motorcycle comprises of a frame (101), front fork (102) attached to a pivot tube (103) of the vehicle frame, a front wheel (104) attached to these front forks (102), a handle bar (105) connected to the front forks (102), a fuel tank (106) attached so as to straddle an upper part of the : vehicle frame, a seat (107) attached to the upper rear portion of the vehicle frame, an engine unit (108) attached to the lower front section of the vehicle frame, a swing arm (109) attached to a lower rear section of the vehicle frame, suspended by a rear shock absorber (not shown in the drawing) from the vehicle frame and a rear wheel (110) attached to a rear end of swing arm (109). The intake system of the engine comprises of a carburettor (117), intake duct and an air cleaner. The exhaust system of the engine comprises of exhaust pipe and a muffler. The motorcycle is also provided with a side cover (111) for covering a side section of the vehicle frame, a seat cover for covering a rear section of the vehicle frame below the seat, a front fender (112) for covering an upper part of the front wheel (104), and a rear fender (113) for covering an upper part of the rear wheel (110). The drive from the engine (108) is transmitted from the engine to the driven wheel sprocket mounted on the rear wheel hub mounted on the rear wheel assembly.

A tube centre stand (118) is disposed horizontally at the lower portion of the main tube, extending outward through an opening on the two sides of the bracket (not shown in the figure).

Figure. 2 represents left side view of rear wheel with auxiliary stand In OFF condition. With reference to Figure. 2 a swing arm (201) is mounted on the mid lower portion of the frame to allow the rear wheel (110) to be fitted through an axle. One end of the swing arm is connected pivotably to the frame through a bolt and the opposite end is provided with slot (202) to allow axle to move either way for adjusting chain slackness. A U shaped bracket is provided near the axle mounting to fit bottom eyelet (203) of the shock absorber (204). The top eyelet (205) of shock absorber (204) is connected to frame below the seat (107). The said swing arm (201) is constructed using a pair of rectangular tube with larger width in vertical direction and smaller width in horizontal direction. The pair of tubes are connected using a bridge bracket near the pivoting end of the swing arm. A tube is welded at the end of the tube to form a pivot point and slots are formed at axle mounting area on the other end of the swing arm on both tubes. A pair of V shaped brackets (209) is attached to the said swing arm (201) on the both left and right side of the motorcycle. The said brackets (209) are provided with a hole coinciding with shock absorber mounting hole (203) on the top side and an elongated slot coinciding with the axis of the axle mounting hole (202). The said slot is aligned along the axle mounting hole (202) provided in the said swing arm (201). The said brackets (209) are further extended below in an angular shape and bends further almost horizontally. The bottom end of the said brackets (209) are extended horizontally and extending beyond the swing arm.

The bottom end of the said bracket (209) is provided with a hole (206) to fit the stand pivotally. A pair of bolts are used to fit the stand (207) on the said brackets (209) on either side of the motorcycle.

The said pair of brackets is not restricted to the shape and design shown in the figure, it can take any shape and design to pass through shock absorber or shock absorbers mounting bottom bolt and other through the rear wheel axle of a motorcycle for mounting on swing arm member on either side of vehicle. The said auxiliary stand (207) is provided with a pair of legs. The bottom part of the left leg of the said auxiliary stand (207) is provided with rotatable lever (208) to obtain higher lever ratio thereby higher mechanical advantage. This higher mechanical advantage will in turn reduce the overall effort to put the vehicle with luggage on stand with ease. Also the front wheel/rear wheel is not lifted from ground so that the effort required to put vehicle on stand is minimum. Further this arrangement can be retrofittable in field to facilitate the customers to fit as an accessory.

Figure 3 is showing the view of rear wheel from rear side with stand in ON condition. The shoe (301) of rotating lever (208) is provided on the left leg of the auxiliary stand (207). The pivot point for rotatable lever (302) can be seen in this figure. A connecting tube (303) connects the two legs of the stand (207).

Although this invention has been described in terms of a certain preferred embodiment, other embodiments apparent to those of ordinary skill in the art are also within the scope of this invention. Accordingly, the scope of the invention is intended to be defined only by the claims that follow.

We Claim:

1. An auxiliary stand for a motorcycle comprising:

at least a pair of brackets mounted along the swing arm on either side of the swing arm o1 the motorcycle and ;

a stand assembly pivotally mounted on the rear side of the brackets.

2. The auxiliary stand for a motorcycle as claimed in claim 1, wherein the said stand assembly comprises of

a pair of legs;

a connecting tube for connecting the pair of legs and;

a pivoting lever to operate the stand.

3. The auxiliary stand for a motorcycle as claimed in claim 1, wherein the said bracket is preferably of V shape.

4. The auxiliary stand for a motorcycle as claimed in claim 1, wherein the said bracket bottom end is provided with a hole to fit the stand pivotally.

5. The auxiliary stand for a motorcycle as claimed in claim 1, wherein the said bracket is provided with an elongated slot coinciding with the axis of the axle mounting hole of the motorcycle.

6. The auxiliary stand for a motorcycle as claimed in claim 1, wherein the said bracket top end is provided with a hole coinciding with shock absorbing hole.

7. The auxiliary stand for a motorcycle as claimed in claim 1 is a retrofittable one.