Pivoted index latch for lawn trimmer-edger

Claim 1

IN A LAWN TRIMMER-EDGER COMPRISING A MOTOR HOUSING, A WHEEL HOUSING REARWARDLY OF THE MOTOR HOUSING, AN ELONGATED HANDLE HAVING A PORTION MOUNTED WHITHIN THE WHEEL HOUSING, MEANS JOURNALING THE MOTOR HOUSING FOR RELATIVE ROTARY MOVEMENT WITH RESPECT TO THE WHEEL HOUSING, AND CIRCUMFERENTIALLY-SPACED STOP MEANS ON THE MOTOR HOUSING; THE IMPROVEMENT IN LATCHING MEANS CARRIED BY THE WHEEL HOUSING AND COOPERATING WITH THE STOP MEANS ON THE MOTOR HOUSING TO INDEX THE HOUSING IN A DESIRED ANGULAR POSITION RELATIVE TO ONE ANOTHER, COMPRISING: (A) A MANUALLY-MANIPULATABLE LATCH MEMBER PIVOTALLY SUPPORTED INTERMEDIATE ITS EXTREMITIES ON THE WHEEL HOUSING FOR PIVOTAL MOVEMENT ABOUT AN AXIS WHICH IS TRANSVERSE TO THE AXIS OF RELATIVE ROTATION BETWEEN THE HOUSING; (B) MEANS RETAINING SAID LATCH MEMBER BETWEEN THE HANDLE AND THE WHEEL HOUSING; SAID MEANS LIMITING THE PIVOTAL MOVEMENT OF SAID LATCH MEMBER ABOUT ITS PIVOT AXIS; (C) SAID LATCH MEMBER HAVING A LATCHING PORTION DISPOSED FORWARDLY OF ITS PIVOTABLY-SUPPORTED PORTION AND COOPERATING WITH THE STOP MEANS ON THE MOTOR HOUSING TO INDEX THE HOUSING RELATIVE TO ONE ANOTHER; (D) YIELDABLE MEANS CONSTANTLY URGING SAID LATCH MEMBER TOWARDS COOPERATIVE INDEXING ENGAGEMENT WITH THE STOP MEANS; AND (E) MEANS IN THE WHEEL HOUSING PROVIDING AN ACCESS OPENING TO FACILITATE THE MANIPULATION OF SAID LATCH MEMBER AGAINST SAID YIELDABLE MEANS.