Hook and pin hinged connection
AssigneeGeneral Motors Corporation
InventorAkio T. Takai
Life of this patent
Estimating the term…
Abstract
A molded hinge mechanism includes a pair of hinge members having open slotted barrel portions which may be molded integrally with the hinge members without the necessity of core inserts or separate drilling operations. The hinge members include at least one pair of interfitting semi-cylindrical surfaces generated about the common axis of the barrel portions which slidably engage with one another as the hinge members rotate relatively about the axis. The slots which contain the hinge pin are open and the slidable interfitting of the semi-cylindrical surfaces prevents the hinge members from separating when the slots are oriented 180.degree. oppositely. Since the semi-cylindrical surfaces do not intrude into the open slots, each hinge member may be molded in a one step operation without the necessity of drilling or inserts.
Claims2
A molded hinge mechanism comprising,
- first and second hinge members, each having at least one barrel portion provided with an open linear slot, said slots opening oppositely of each other and being axially aligned,
- a hinge pin axially insertable in the aligned open slots to pivot the hinge members together for relative rotative movement about a hinge axis,
- each hinge member further including an outer convex semi-cylindrical surface on the bight of the barrel portion generated about the hinge axis,
- each hinge member further including a complementary concave semi-cylindrical surface also generated about the hinge axis and slidably engageable with the convex semi-cylindrical surface on the barrel portion of the other hinge member,
- the hinge members further including stop means adjacent the convex and concave surfaces and engageable as the hinge members rotate about the hinge axis to limit the relative rotation of the hinge members about the hinge axis and maintain the hinge pin in the axially aligned open slots,
- the slidable engagement of the respective convex and concave semi-cylindrical surfaces preventing the separation of the hinge members as they rotate relative to one another about the hinge axis.
A molded hinge mechanism comprising,
- first and second two sided hinge members, each hinge member having at least one barrel portion provided with an open linear slot, said slots opening oppositely of each other and being axially alignable,
- a hinge pin axially insertable in the aligned open slots to pivot the hinge members together for relative rotative movement about a hinge axis,
- each hinge further including an outer convex semi-cylindrical surface on the bight of the barrel portion generated about the hinge axis,
- the convex semi-cylindrical surface on one hinge member merging into an edge portion respective one side of said one hinge member,
- each hinge member further including a complementary concave semi-cylindrical surface also generated about the hinge axis and terminating in a lip respective the same one side of said other hinge member,
- the convex and concave semi-cylindrical surfaces of the hinge members being slidably engageable,
- the respective edge portion and lip of the hinge members being engageable as the hinge members rotate relative to one another in one direction to limit the relative rotation and maintain the hinge pin within the axially aligned open linear slots,
- each hinge member including a stop member respective the other side thereof, the stop members being engageable to limit the relative rotation of the hinge members in the other direction to maintain the hinge pin in the axially aligned open slots,
- the slidable engagement of the respective convex and concave semi-cylindrical surfaces preventing the separation of the hinge members in all relative rotative positions thereof.
Dependencies are inferred from the claim text.