Locking system for articulated fittings of car seats, in particular for wobble fittings

Locking system for articulated fittings for car seats with free-swiveling backrest, comprising:

• a) a fitting comprising at least one notch;
• b) a pawl having a tooth which engages said pawl in a locking position with said notch of said fitting;
• said pawl having a clamping and contact surface for receiving an operating and safety element;
• c) said operating and safety element for securing said pawl in a locking position including a clamping and contact surface for engaging the clamping and contact surface of said pawl:
• said safety element including a spring to increase a clamping force exerted on the pawl;
• whereby said operating and safety element secures the pawl in a locking position by engagement of its clamping and contact surface against the clamping and contact surface of said pawl:
• d) said operating and safety element further including a catch surface which prevents the pawl from exerting an opening moment on the operating and safety element;
• wherein the operating and safety element is a bolt, and wherein the catch surface of said operating and safety element is located adjacent the clamping and contact surface of said safety element;
• and wherein an end of said catch surface that faces away from the clamping and contact surface of the opening and safety element is at the greatest distance of all points of the catch surface from a swivel axis of said bolt.

Locking system for articulated fittings for car seats with free-swiveling backrest, comprising:

• a) fitting comprising at least one notch;
• b) a pawl having a tooth which engages said pawl in a locking position with said notch of said fitting;
• said pawl having a clamping and contact surface for receiving an operating and safety element;
• c) said operating and safety element for securing said pawl in a locking position including a clamping and contact surface for engaging the clamping and contact surface of said pawl;
• said safety element including a spring to increase a clamping force exerted on the pawl;
• whereby said operating and safety element secures the pawl in a locking position by engagement of its clamping and contact surface against the clamping and contact surface of said pawl;
• d) said operating and safety element further including a catch surface which prevents the pawl from exerting an opening moment on the operating and safety element;
• and
• wherein the operating and safety element includes a clamping bolt, which carries the clamping and contact surface of the operating and safety element, and a catch bolt which carries the catch surface.

Locking system for articulated fittings for car seats with free-swiveling backrest comprising:

• a) a fitting comprising at least one notch;
• b) a pawl having a tooth which engages said pawl in a locking position with said notch of said fitting;
• said pawl having a clamping and contact surface for receiving an operating and safety element;
• c) said operating and safety element for securing said pawl in a locking position including a clamping and contact surface for engaging the clamping and contact surface of said pawl;
• said safety element including a spring to increase a clamping force exerted on the pawl;
• whereby said operating and safety element secures the pawl in a locking position by engagement of its clamping and contact surface against the clamping and contact surface of said pawl;
• d) said operating and safety element further including a catch surface which prevents the pawl from exerting an opening moment on the operating and safety element;
• wherein the operating and safety element is a bolt, and wherein the catch surface of said operating and safety element is located adjacent the clamping and contact surface of said operating and safety element;
• wherein a surface defined by said catch surface and said clamping and contact surface of said operating and safety element has an area and wherein further a point which defines the shortest distance from the swivel axis of said bolt lies on the catch surface;
• wherein and end of said catch surface that faces away from the clamping and contact surface of the operating and safety element is at the greatest distance of all points of the catch surface from a swivel axis of said bolt.

Locking system for articulated fittings, in particular wobble fittings, for car seats with a free-swiveling backrest, comprising:

• a) a fitting comprising at least one notch;
• b) a pawl having a tooth which engages said pawl in a locking position with said notch of said fitting;
• said pawl having a first clamping surface for receiving an operating and safety element;
• c) said operating and safety element for securing said pawl in a locking position including a second clamping surface for engaging the first clamping surface of said pawl;
• said safety element including a spring to increase the clamping force exerted on the pawl;
• whereby said operating and safety element secures the pawl in said locking position by said engagement;
• d) said operating and safety element further including a catch surface which prevents the pawl from exerting an opening moment on the operating and safety element.