Patent attributes
A spacer (10) to be inserted into a dash silencer comprises a cylindrical hollow body (12), a first flange (13) extending radially outward from one of the ends of the body, a second flange (a contact flange) (14) extending radially outward from the other end of the body, and a plurality of engagement pawls each extending from the outer surface of the other end of the body toward the first flange. The engagement pawls include a resilient engagement pawl (17) and a rigid engagement pawl (18). The contact flange has an outer diameter slightly larger than the hole diameter of a mounting hole formed in the dash silencer to allow the spacer to be readily inserted into the mounting hole. Each of the engagement pawls (17, 18) has an outer shape expanding upwards outward to allow the spacer to be inserted into the mounting hole while aligning the respective centers of the spacer the mounting hole with one another. The resilient engagement pawl (18) is adapted to engage with the lower surface of a rubber sheet (8) of the dash silencer (7) after the insertion operation of the spacer, so as to fasten the spacer to the dash silencer.
