D-ring height adjuster

A seat belt webbing height adjuster comprising:

• a base having a column of openings spaced apart along an axis;
• a carriage supported on said base for movement along said axis relative to said base;
• a seat belt webbing guide on said carriage;
• a first latch part on said carriage, said first latch part being pivotally movable between a first condition in which said first latch part is not located in any one of said openings and a second condition in which said first latch part is located in one of said openings to block axial movement of said first latch part and said carriage relative to said base;
• a second latch part on said carriage, said second latch part being pivotally movable between a first condition in which said second latch part is not located in any one of said openings and a second condition in which said second latch part is located in one of said openings to block axial movement of said second latch part and said carriage relative to said base;
• said first and second latch parts being disposed next to each other on said carriage so as to be capable of locating in the same openings simultaneously;
• biasing means for biasing said first and second latch parts into the second condition;
• and
• actuatable release means for moving said first and second latch parts to the first condition;
• at least one of said first and second latch parts being located in one of said openings in said base when said release means is unactuated, said second latch part being substantially longer than said first latch part.

A seat belt webbing height adjuster comprising:

• a base having a column of openings spaced apart along an axis;
• a carriage supported on said base for movement along said axis relative to said base;
• a seat belt webbing guide on said carriage;
• a first latch part on said carriage, said first latch part being pivotally movable between a first condition in which said first latch part is not located in any one of said openings and a second condition in which said first latch part is located in one of said openings to block axial movement of said first latch part and said carriage relative to said base;
• a second latch part on said carriage, said second latch part being pivotally movable between a first condition in which said second latch part is not located in any one of said openings and a second condition in which said second latch part is located in one of said openings to block axial movement of said second latch part and said carriage relative to said base;
• said first and second latch parts being disposed next to each other on said carriage so as to be capable of locating in the same openings simultaneously;
• biasing means for biasing said first and second latch parts into the second condition;
• and
• actuatable release means for moving said first and second latch parts to the first condition;
• at least one of said first and second latch parts being located in one of said openings in said base when said release means is unactuated,
• said first latch part having a nose which is engageable with said base to block downward movement of said first latch part along said base, said second latch part having a nose which is engageable with said base to block downward movement of said second latch part along said base, and said nose of said second latch part being disposed below said nose of said first latch part.

A seat belt webbing height adjuster comprising:

• a base having a column of openings spaced along an axis;
• a carriage supported on said base for movement along said axis relative to said base, and a seat belt webbing guide on said carriage;
• a first latch part on said carriage, said first latch part being movable between a first condition in which said first latch part is not located in any one of said openings and a second condition in which said first latch part is located in one of said openings to block axial movement of said first latch part and said carriage relative to said base;
• a second latch part on said carriage, said second latch part being movable between a first condition in which said second latch part is not located in any one of said openings and a second condition in which said second latch part is located in one of said openings to block axial movement of said second latch part and said carriage relative to said base;
• said first and second latch parts being configured and disposed on said carriage so as to be capable of locating in the same opening simultaneously;
• biasing means for biasing said first and second latch parts into the second condition;
• and
• actuatable release means for moving said first and second latch parts to the first condition;
• said actuatable release means having an unactuated condition in response to being pressed in a direction upward, parallel to the longitudinal extent of said base and parallel to said axis,
• said actuatable release means having an actuated condition in response to being pressed downward, parallel to the longitudinal extent of said base and parallel to said axis,
• said first and second latch parts being movable from the second condition into the first condition in response to upward movement of said carriage relative to said base when said release means is unactuated.

A seat belt webbing height adjuster comprising:

• a base having a column of openings spaced apart along an axis;
• a carriage supported on said base for movement along said axis relative to said base;
• a seat belt webbing guide on said carriage;
• a first latch part on said carriage, said first latch part being pivotally movable between a first condition in which said first latch part is not located in any one of said openings and a second condition in which said first latch part is located in one of said openings to block axial movement of said first latch part and said carriage relative to said base;
• a second latch part on said carriage, said second latch part being pivotally movable between a first condition in which said second latch part is not located in any one of said openings and a second condition in which said second latch part is located in one of said openings to block axial movement of said second latch part and said carriage relative to said base;
• said first and second latch parts being disposed next to each other on said carriage so as to be capable of locating in the same openings simultaneously;
• biasing means for biasing said first and second latch parts into the second condition;
• and
• actuatable release means for moving said first and second latch parts to the first condition;
• at least one of said first and second latch parts being located in one of said openings in said base when said release means is unactuated,
• said first and second latch parts being pivotally moveable about a common pivot axis in opposite directions and independent of each other.