improvements relating to adjustable mirrors for cars and safekeeping of security for the assembly of such a mirror

摘要

Title: Adjustable motor car mirror, and safety housing for mounting such a mirror. of the disclosure: An apparatus for adjusting a mirror or a similar flat planar element about two mutually perpendicular axes. The apparatus has a housing enclosing a reversible motor an electromagnetically operated clutch and two planetary transmission assemblies, one for each direction of movement. The clutch selectively couples the motor to one or the other of the two pinion sun wheels of the planetary transmission systems. The drive shaft of each planetary transmission assembly is provided with a dog, which engages a corresponding mirror adjustment unit. A mirror mounting plate is provided with recesses into which correspondingly shaped parts of the mirror adjustment units are introduced by snap forcing. To suppress vibration of the mirror, the units are preferably arranged to act upon a tilting adjusting ring which in any position is in sealing contact with a raised edge of the bottom member of the housing. A safety housing for mounting the apparatus comprises a protective cap housing two substantially parallel partitions spaced apart so as to be capable of receiving the top part of a mounting column between them. Clamping means force the partitions against the surface of the column. The cap will thus withstand light impact forces, but turn relative to the column when struck by a bicycle or other vehicle in traffic.