| 摘要 |
<p>The contact support (2) has a middle limb (3) with lateral surfaces at least partly domed outward. Contacts (4) are made of round material. They are placed on both sides of the middle limb and held by supporting angle pieces (5) with a flexible element (6) for each contact, that they rest by one end on the base of the angle piece, and are supported obliquely by the flexible element, pressed to the opposite contact domed parts. Supports are secured at the other ends against falling out. Insertion of the opposite contact spreads them and presses them to it.</p> |
