Method for making a rotating lock for an automotive vehicle
View Patent ↗The invention relates to a method for making a rotating lock ( 10 ) for the locking system of an automotive vehicle, that comprises at least first and second complementary parts ( 5, 6 ) that can be assembled in at least one overlap area ( 7 ) for defining a stator ( 12 ) inside which a rotor ( 11 ) can be rotated, characterized in that it comprises the following steps: a first step for assembling the two parts ( 5, 6 ) in order to position in said overlap area ( 7 ) at least one opening ( 32 ) formed in the first part of the stator ( 6 ) opposite the opening of a corresponding cavity ( 34 ) formed in the second part of the stator ( 5 ); a second crimping step during which a crimping punch ( 22 ) is introduced in each opening ( 32 ) for at least partially deforming the wall of the opening ( 32 ) in the direction of the corresponding cavity ( 34 ) in order to crimp the assembly of the two parts of the stator ( 5, 6 ).
1. A method for manufacturing a rotary bolt for a locking system of a motor vehicle comprising at least a first portion and a second portion that are complementary, capable of being assembled in at least one overlap zone in order to form a stator inside which a rotor is capable of rotating, the method comprising:
assembling said first and second portions in order to position at least one orifice in the overlap zone, wherein the at least one orifice is formed in the first portion of the stator facing an opening of a corresponding cavity formed in the second portion of the stator; and
crimping by inserting a crimping punch into each orifice in order to at least partially deform a wall of the orifice in a direction of the corresponding cavity so as to crimp the assembly of the first and second portions of the stator,
wherein the crimping punch comprises one selected from the group consisting of a rounded-shaped deformation end in order to continuously deform a portion of the wall in the cavity during crimping and a substantially flat-shaped deformation end in order to discontinuously deform the portion of the wall in the cavity during crimping.
2. The method for manufacturing a bolt as claimed in claim 1 , wherein the at least one orifice is blind and wherein a bottom wall of each blind orifice forms a portion of wall capable of being positioned facing the opening of the corresponding cavity and capable of being deformed during crimping.
3. The method for manufacturing a bolt as claimed in claim 1 , wherein the at least one orifice is a through-orifice and wherein a side wall of each through-orifice forms a portion of wall that is capable of being positioned facing the opening of the corresponding cavity and capable of being deformed during crimping.