SE304456B - - Google Patents

Abstract

Abstract 1,111,862. Spring hinges. W. GRONBACH. 28 July, 1965 [11 Feb., 1965], No. 32275/65. Heading E2F. The lid 7 of a freezer cabinet 1 is pivoted albout a horizontal axis, the pivot pin 51 being non-rotatively carried by a strut 50 attached to cabinet 1 and inserted in and co-operating with means carried in the lid for counterbalancing the weight of the lid but also providing a closing force for the lid when closed. Link 54 is held non-rotative by engagement with retaining faces 52, 53 on pin 51, further links 56, 58 are pivoted to link 54 and to lid 7 at 55, 57 respectively, and are pivoted to each other and to a spring loaded bar 63 at 59, the spring loading keeping one of cam surfaces 71, 61, 60 on link 56 in contact with cam follower 70 carried by pin 57, and link 58 being provided with a slot 62 for the necessary sliding motion of link 58 with respect to pin 59 during operation. When the lid is closed, as shown, cam follower 70 is in contact with surface 71 of link 56 and the action of spring 64 is to apply a closing force to the lid, but as lid 7 is opened cam follower 70 rides onto surface 60 and spring 64 acts to counterbalance the weight of lid 7.

Inventors

• 👤 W Gronbach

Bibliographic Details