FORM 2
THE PATENT ACT, 1970
(39 OF 1970)
&
THE PATENTS RULE, 2003
COMPLETE SPECIFICATION
(SEE SECTION 10; RULE 13)
"HOOD HOLDING MECHANISM FOR AUTOMOTIVE VEHICLES"
MAHINDRA & MAHINDRA LIMITED
AN INDIAN COMPANY,
R&D CENTER, AUTOMOTIVE SECTOR,
89, M.I.D.C., SATPUR,
NASHIK-422 007,
MAHARASHTRA, INDIA.
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED

FIELD OF THE INVENTION:-
The present invention is related to vehicle body systems. More particularly the present invention is related to hood holding mechanism for the vehicle wherein the mechanism comprises of a stay rod with sliding mechanism.
STATEMENT OF INVENTION:-
A hood holding mechanism for automotive vehicles comprises a guide way member, mounted over a bracket, having longitudinal slot/ groove rigidly fixed to the in side the hood at border edge one end near to the hinge of the said hood and other end facing free end of said hood; a pair of arms at one end pivoted to fender on the vehicle body and other end a wheel pivoted on a shaft, mounted in the said slot/groove; a pair of spring biased locking member pivoted at the other end of the said guide member to engage the said shaft of the wheel; a cable means provided to the said locking member for releasing the shaft by means operation of lever mechanism placed at remote.
BRIEF DESCRIPTION OF THE FIGURES:-
Figure 1 shows the isometric view of the hood holding mechanism of the present invention mounted on the vehicle.
Figure 2 shows the exploded view of the hood holding mechanism of the present invention.
Figure 3 shows the exploded view of the sliding system with locking clip of the present invention.
Figure 4 shows the view of the sliding guide with roller system and the locking clip of the present invention.
Figure 5 shows the magnified view of locking clip profile.
Figure 6 shows the another view of the locking clip of the present invention.
Figure 7 shows actuating lever and the cable for actuating the mechanism of the present invention.

DESCRIPTION OF THE PRESENT 1NVENTION:-
Referring to figures 1 to a hood holding mechanism for automotive vehicles comprises a guide way member 10 , mounted over a bracket 2 , having longitudinal slot/groove , for wheel guide way, rigidly fixed to the in side the hood at one end near to the hinge of the said hood and other end facing free end of said hood. A pair of arms 8 at one end pivoted to fender 11 on the vehicle body and other end a wheel 6 pivoted on a shaft 7 , mounted in the said groove 10A . a pair of spring biased locking members pivoted at the other end of the said guide way member 10 to engage the said shaft 7 of the wheel 6. A cable means 9 provided to the said locking member 5 for releasing the shaft 7by means operation of lever mechanism 15 placed at remote. The said lever mechanism preferably is fixed in the hood at front portion as shown in figure 7.
The hood holding mechanism of the present invention comprises of a wheel guide way 10 mounted on a bracket 2 which is fixed in the hood. A cylindrical wheel 6 is pivoted at the end of the arm 8 . The wheel moves in the guide way. The other end of the arm is pivoted 11 in the car body. There is a pair of lock 5 pivoted in the bracket 2 pivot 4 which is fixed in the hood as shown in the figures 1 to 7. The locked position of arm in the lock is shown in the figures 1 to 4.
The locking member comprises a lever 5 having hook type curved formation at one end and other end pivoted at other end of the said guide member to the pivot 4. A tension spring 3 is biased to the said lever 5 to retain the said curved formation of the hook aligned with the said wheel guide 10 slot/ groove and facing upwards.
The said wheel guide 5 slot/groove formation is of curved of curvature of hood 1 surface.

The said bracket holding wheel guide 10 provided with a pair of pivots 4 at other end guide member.
The said wheel guide member 10 is made of nylon. The said wheel 6 is made of plastic or nylon. The said arms 8 made of steel.
The said lever mechanism consists of a second bracket, holding the outer of the said cable, fixed to the hood and inner of the said cable fixed to an actuating lever pivoted to the said bracket.
In current vehicles for keeping the hood in open position we have to manually put the stay rod in the hood. The system shown above has a sliding type arm which act as a stay rod, which gets locked in the extreme position while opening the hood. There is no manual interruption during this process. When the arm gets locked the hood remains in the open position.
The mechanism disclosed in this invention works as described herein. As the hood is opened, the wheel which is inserted in the shaft of the arm, rolls in the guide way. The arm also moves with the wheel. The wheel and the guide way form a rolling pair. Wheel and the arm form a single link. As the wheel reaches the extreme position of wheel guide way, the arm sfides with the lock and get locked with arm. During sliding of arm with the lock, since the lock is pivoted it moves back and due to the spring action it again comes back and locks the arm. By this way locking take place. For unlocking, the lock is pulled out which now releases the arm and when the hood is closed the wheel slides down to the bottom position of the wheel guide way during hood closing. The lock is pulled by the cable fixed to it. Latch for unlocking the arm (or pulling the lock) is provided in the hood as shown in the diagram. Latch is connected to the lock by a cable. The wheel can be made of nylon or other plastic material. The lock is made up of sheet metal (steel). The guide can be made up of nylon. The arm can be made up of steel.

The technical advantages achieved by this invention are:-
1. It imparts safety to the customer. Customer safety is more in this system than other systems. Ergonomic wise it is better than other prior art systems.
2. There is no need of manual interruption for keeping the hood in open condition.

WE CLAIM:-
1. A hood holding mechanism for automotive vehicles comprises a guide way member, mounted over a bracket, having longitudinal slot/.groove rigidly fixed to the in side the hood at border edge one end near to the hinge of the said hood and other end facing free end of said hood; a pair of arms at one end pivoted to fender on the vehicle body and other end a wheel pivoted on a shaft, mounted in the said slot/groove; a pair of spring biased locking member pivoted at the other end of the said guide member to engage the said shaft of the wheel; a cable means provided to the said locking member for releasing the shaft by means operation of lever mechanism placed at remote.
2. a hood mechanism as claimed in claim 1 wherein the locking member comprises a lever having hook type curved formation at one end and other end pivoted at other end of the said guide member; a tension spring is biased to the said lever to retain the said curved formation of the hook aligned with the slot and facing upwards.
3. A hood mechanism as claimed in claims 1 and 2 wherein the said groove formation is of curved.
4. A hood mechanism as claimed in claims 1 to 3 wherein the said guide member is made nylon.
5. A hood mechanism as claimed in claims 1 to 4 wherein the said wheel is made of plastic or nylon.
6. A hood mechanism as claimed in claims 1 to 5 wherein the said arms made of steef.

7. A hood mechanism as claimed in claims 1 to 6 wherein the said bracket holding wheel guide provided with a pair of pivot at other end guide member.
8. A hood mechanism as claimed in claims 1 to 7 wherein the said lever mechanism consists of a second bracket, holding the outer of the said cable, fixed to the hood and inner of the said cable fixed to an actuating lever pivoted to the said bracket.
9. A hood mechanism as claimed in claim 7 wherein the said lever mechanism preferably fixed in the hood at front portion.