Mitsubishi 1993 3000GT, Техническое руководство

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HEADRESTRAINT (HORIZONTAL
ADJUSTMENT MECHANISM)
There is a, link mechanism in the headrestraint that can
adjust the headrestraint in four steps forward and
CONSTRUCTION
The stay and right/left bracket are one unit. The bracket
and side frame are connected by right/left link B and link
A and by the shaft. The shaft is one unit with the sector
gear and right/left link A. There is a pawl on the left side
frame and it is made to engage the sector gear by the
OPERATION
When the headrestraint is pushed forward, link A and B
rotate with support points A and B acting as the centre
so the entire headrestraint moves forward. Since the
sector gear rotates to the rear relative to the shaft in the
centre, the engagement of the sector gear and pawl
moves forward one tooth at a time and the headrestraint
is fixed in each position. At this time, the plate is pushed
forward by pin A.
When the headrestraint is pushed straight forward to the
maximum forward position, the oval hole hits pin B in the
sector gear and the plate cannot move for-
backward without changing the angle at which the head
touches its surface.
lock spring. The plate mounted on the shaft is pressed to
pin A in the pawl by the spring and pin B in the sector
gear is inserted in the oval hole.
ward. In addition, when it is pushed to the maximum
forward position, pin A crosses over C in the plate and is
caught in the catch. Then, the engagement of the sector
gear and pawl is released and the headrestraint is
returned to the maximum backward position by the force
of the return spring. Since the oval hole hits pin B and
the plate cannot move backward at a position just before
the maximum backward position, pin A crosses over C.
Then the pawl engages the sector gear, and the
headrestraint is fixed in the maximum backward
position.
6-8
INTERIOR - Seats
19N0053
NOTE
• mark indicates centre of rotation of each part.