Security handle for vehicles
Handle for vehicles, which comprises a lever ( 5 ) which is pivoted for rotating around a first axis ( 7 ) in a frame ( 1 ) and is mechanically connected to a rocker ( 11; 111 ) which rotates around a second axis ( 12 ) when the lever ( 5 ) rotates, wherein a counterweight ( 28; 128 ) is pivoted to the frame ( 1 ) and is mechanically connected to the lever ( 5 ) for balancing the lever ( 5 ) and rotating around a third axis ( 30 ) when the lever ( 5 ) rotates.
1. A handle for vehicles, comprising:
a lever which is pivoted for rotating around a first axis in a frame and is mechanically connected to a rocker so that said rocker rotates around a second axis when the lever rotates;
a counterweight pivoted to the frame and mechanically connected to the lever for balancing the lever, wherein the counterweight rotates around a third axis when the lever rotates; and
a security inertial device suitable for preventing the rotation of the lever during an impact, the security inertial device comprising an inertial mass which is pivoted to the frame for rotating around a fourth axis and is provided with a stop member for intercepting the rocker.
2. The handle according to claim 1 , wherein the third axis is substantially parallel to one of the first axis and the second axis.
3. The handle according to claim 1 , wherein the third axis is arranged between the first axis and the second axis.
4. The handle according to claim 1 , wherein elastic means act on the counterweight to urge the lever to a rest position.
5. The handle according to claim 4 , wherein said elastic means comprise a helical spring arranged along the third axis.
6. The handle according to claim 1 , wherein the counterweight is mechanically connected to the lever through the rocker.
7. The handle according to claim 6 , wherein the counterweight is mechanically connected to the lever by means of an articulation protruding from the rocker.
8. The handle according to claim 7 , wherein said articulation is provided with a pin which can rotate and slide in a groove made in the counterweight.
9. The handle according to claim 7 , wherein the articulation protrudes from the rocker from a side opposite to a tongue suitable for mechanically connecting the rocker to the lever.
10. The handle according to claim 1 , wherein when the lever rotates, the rocker rotates in a same direction.
11. The handle according to claim 1 , wherein when the lever rotates, the counterweight rotates in the opposite direction.
12. The handle according to claim 1 , wherein an angle covered during the rotation of the counterweight is smaller than an angle covered at the same time by the lever.
13. The handle according to claim 1 , wherein the stop member is suitable for intercepting a protuberance protruding from the rocker from the side opposite to a tongue suitable for mechanically connecting the rocker to the lever.
14. The handle according to claim 1 , wherein the fourth axis is substantially parallel to one of the first axis, the second axis and the third axis.
15. The handle according to claim 1 , wherein the fourth axis is arranged between the second axis and the third axis.
16. The handle according to claim 1 , wherein elastic means act on the inertial mass for opposing rotation of the inertial mass.
17. The handle according to claim 16 , wherein said elastic means comprise a helical spring arranged along the fourth axis.
18. The handle according to claim 17 , wherein said helical spring urges the inertial mass in the same direction of rotation of the lever starting from a rest position.
19. The handle according claim 1 , further comprising a locking device suitable for preventing the rotation of the lever after an impact.
20. The handle according to claim 19 , wherein the locking device locks the inertial mass after a rotation thereof.
21. The handle according to claim 20 , wherein the locking device comprises a flexible plate which is fixed to the frame and is elastically bent by a tooth of the inertial mass.
22. The handle according to claim 21 , wherein the flexible plate is provided with an opening suitable for intercepting the tooth of the inertial mass during the rotation of the latter.
23. The handle according to claim 1 , wherein the counterweight has a substantially symmetric shape with respect to a longitudinal plane (L).
24. The handle according to claim 23 , wherein the counterweight comprises two arms which are mechanically connected to the rocker.
25. The handle according to claim 24 , wherein the inertial mass is arranged between the two arms of the counterweight.
26. The handle according to claim 24 , wherein the two arms of the counterweight are mechanically connected to the rocker by means of two articulations.
27. The handle according to claim 26 , wherein the articulations are arranged between two extensions of the rocker for pulling one or more cables.
28. The handle according to claim 26 , wherein a tongue suitable for mechanically connecting the rocker to the lever is arranged between the articulations.