Stop pin for rotary monitoring or temperature control switch in road vehicle is made in three sections joined by flexures and is pressed into bore in fixed housing carrying rotating switch member

摘要

The stop pin (12) prevents unwanted rotation of the rotary monitoring switch or temperature control switch (1). It is pressed into a bore (13) in a fixed housing (3) carrying a rotating switch member (2). The stop pin is made in three sections joined by thin flexures and has a conical end which is pressed against a circular track (10) with a roughened surface (11) to provide a controlled resistance to rotary motion. The rotating switch member has a hollow hub (5) with a thickened rim (8) which allows it to snap into place in a large diameter bore (6) in the housing.