Patent ID: 7992249
Filing Date: 2011-08-09
Classification: B60S,Y10T

Abstract:
1. A wiper arm assembly, comprising: a mounting head having a pair of laterally spaced sidewalls with bottom surfaces and an axle extending between said sidewalls, each of said sidewalls having one of a notch extending upwardly into said bottom surfaces or an arm extending laterally inwardly toward the other of said sidewalls; a wiper arm having a hub with a pair of laterally spaced sidewalls with bottom surfaces and a pocket with an open end for receipt of said axle for rotation therein, said hub having the other of said notches or said arms, when having said notches, said notches extending upwardly into said bottom surfaces of said hub sidewalls and when having said arms, said arms extending laterally outwardly from said hub sidewalls; a spring configured for operable attachment to said mounting head and said wiper arm; and said notches and said arms each having locking surfaces brought into engagement with one another in a shipping position under a force imparted by said spring upon rotating said mounting head relative to said wiper arm from a disassembled position toward said shipping position, said locking surfaces confronting each other while in said shipping position and preventing said mounting head and said wiper arm from being able to rotate under an applied force back toward said disassembled position from said shipping position.