| 摘要 |
A hand-operated bender apparatus for forming relatively thin metal stock into parts having predetermined shapes, comprising a base, a clamp on the base for holding portions of the metal stock to be shaped, and a elongate handle which is pivotally carried on the base and which can swivel about an axis thereon. The handle carries a spring-biased slide member on which there is mounted a transverse, upstanding pin constituting a shoulder adapted for engagement with the metal stock. The clamp is in the form of a vise having a fixed jaw constituted as a die, around which the metal stock is formed. The slide member is normally biased toward the pivotal axis of the handle but can yield outwardly in a direction away from such axis as the handle is swiveled, this occurring under the action of forces transmitted through the metal stock as it is being formed. The yieldable shoulder on the handle permits the use of dies having irregular shapes. Such dies can be of elliptical configuration, or alternately can have the shape of a modified cylinder or various other curved or angular prisms. With the arrangement provided, great flexibility and versatility are realized in the performing of specialized bends. In addition, rapid installation and removal of the part being formed is facilitated, thereby resulting in savings of both time and effort.
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