This invention relates to a handle bar assembly for a motor vehicle, more particularly, though not exclusively, a motor vehicle such as an autorickshaw.

In the conventional system of any three wheeler, typical aluminium die cast handle bar of an auto rickshaw consists of an aluminium cast body. The throttle tube is guided through one aide and a gearshift tube through Che other side. The throttle cables are guided into the handle bar through handle bar integrated cable guides.

Switches for horn head lamp are mounted on right hand side of handle bar. Switches for the wiper and so on ate mounted on left hand side of the handle bar. A damper plate m also integrated with the handle bar. Gear shift indication ia engraved on the handle bar.

The main function of handle bar is to steer the 6ront wheel assembly by +/- 45 deg. In other words, it has to transmit the torque from driver to steering column without any play. The handle bar has other functions for instance, to provide comfortable throttling operation and comfortable gear shifting with lesser dutch effort The other secondary functions are routing of gearshift cable, throttle cable and switch duster assembly.

In the existing aluminum handle bare additional machining operation has to be done to maintain mating dimensions. More weight and additional cost are incurred due to machining allowances and the machining process itself.

To propose a solution to the above problem, we have devised a handle bar assembly, avoiding additional machining and achieving savings in cost, weight and space. The handle bar is made of plastic.

In the handle bar assembly proposed, the wear parts can be readily replaced.

The proposed handle bar assembly is devised to achieve the aforementioned objectives.

This invention will now be described with reference to the accompanying drawings which illustrate, by way of example, and not by way of limitation on of possible embodiments of the handle bar assembly proposed herein.

The throttle tube T is guided by a small bush Bl and a large bush B2, These bushes were designed to have poka-yoke Jugs P, which help them to locate the handle bar H at correct orientation. Similarly in the gear shift aide, the tube T is guided by small bush B3 and large bush B4. These bushes are self-lubricated and if subjected to wear and tear they can be replaced as an individual part.

A separate cable guide G is assembled with the handle bar» by which serviceability of the cables can be done quickly. Hot pressed hush inserts I in the hand^ bar, are devised to withstand the tightening torque of bolts along with the cable bracket guide E.

The shroud and the cover, handle bar H provide a larger room for accessing the throttle and gear shift pulley P. A stopper SI provided in the handle bar controls the maximum throttling and one more stopper S2 in the pulley assures the idling and avoids slipping down of cable C from pulley.

Highly engineered and ribbed structure of plastic handle bar H assures strength when compared with existing aluminium handle bar. The plastic gearshift indicator with large font provides dear indication.

The handle bar has an external colored texture.

Additional replaceable Motional plate F in the steering column interface area assures required direct friction between steering column and handle bar with steering column. Circular V notch profile at N allows the friction plate to be in tact in place, and also avoids slippage and felling down. Apart from this edge folding is done on the friction plate at B to arrest any unwanted axial motion of the plate.

Two hollow bushes on cross bolt assembly limit the flexing of plastic handle bar, with the optimized elliptical shaped relief. Excessive tightening of the cross bolt is controlled to the required torque, by means of hollow bush’s length.

It will be appreciated that various other embodiments are possible without departing from the scope and ambit of this invention.

1. A handle box assembly for a motor vehicle comprising a throttle guided by small and large bushes having poka-yoke lugs; self-lubricated small and large bushes, guiding the tube on the gear shift side; a separate cable guide assembled with the handle bar of the said assembly; hot pressed bush inserts in the handle bar to withstand the tightening torque of bolts along with the cable bracket guide; a stopper provided on the handle bar for controlling maximum throtting; a stopper on the pulley for ensuring idling and avoiding slipping down of cable from pulley; a ribbed structure of plastic for the handle bar; a plastic gearshift indicator with large font; external colored texture for the plastic handle bar; a replaceable frictional plate in the steering column interface area; a circular V notch profile allowing the friction plate to be intact in place, said friction plate having an edge folding a pair of hollow bushes, with optimized elliptical shaped relief, on cross bolt assembly for limiting the fixing of the plastic handle bar, with optimized elliptical shaped relief

2. A handle bar assembly for a motor vehicle substantially as herein described with reference to, and as illustrated in, the accompanying drawings.