FIG. 1 is a plan view from above.
FIG. 2 is a plan view from below.
FIG. 3 is the view from the front.
FIG. 4 is a cross-sectional view taken along line 4—4 in FIG. 2.
FIG. 5 is a cross-sectional view taken along line 5—5 in FIG. 2; and,
FIG. 6 is a partial cross-sectional view taken along line 6—6 in FIG. 2.