GB1440004A - Locking means - Google Patents

Abstract

1440004 Electrically or mechanically operated lock WILMOT-BREEDEN Ltd 10 Sept 1974 [18 Sept 1973] 43652/73 Heading E2A Locking means comprises a key-operated lock structure, a latch release member, a mechanical locking member movable by the lock structure, an electromagnetic solenoid and a second locking member operated by the solenoid, both locking members having locking positions preventing release movement of the latch release member, arranged so that when the mechanical locking member is moved to the locking position, it displaces the second locking member therefrom should it be in that position. As shown in Fig. 3, the assembly is mounted by bracket 4 e.g. on the boot lid of a motor vehicle and comprises a body 1 with sleeve 14 brazed thereon and having a diametral bore 13 therethrough. A turnbutton 5 has a stem portion 6 rotatable in body 1 and connected to latch release shaft 7, stem 6 having a diametral bore 11 and housing a key-operated lock structure or tumbler-containing lock barrel 8 with an eccentric projection 12 engaging a slot in a bolt 10 slidable in bores 11, 13. A solenoid-operated locking bolt 25 is also slidable in these bores. When unlocked, bolt 10 lies entirely within stem 6 enabling rotation of turnbutton 5 to release the latch. For locking, either bolt 10 is operated 'by rotation of a key in barrel 8 or bolt 25 operated by the solenoid (20, Figs. 1, 2, not shown) bridges bores 11, 13 preventing rotation of stem 6. When bolt 10 is moved to the locking position, it displaces bolt 25 therefrom if this is also in the locking position. The solenoid plunger (21) engages detents in spring tongues (27) to retain it in either locking or unlocking position.