| 摘要 |
An improved joint linkage capable of withstanding high forces applied thereto having two pairs of contact surfaces; the first pair of contact surfaces being constructed in such a manner as to be capable of withstanding forces of a small magnitude only and adapted for guiding hinged members in their pivotal movement relative to one another; the second pair of contact surfaces being capable of withstanding comparatively high forces and being operable to do so only when the hinged members are at rest longitudinally relative to one another. A predetermined degree of movement in a direction radial to the joint axis is permitted. The improved joint finds particular application in injection molding closure devices utilizing hinged brace members for transmitting extremely high closing forces. |
