| 摘要 |
A punch for punching a sheet of material, the punch having a body formed with a fissure for receiving the sheet of material, a pivot shaft defining a pivot point and a lever retaining means secured to said body. A lever pivotably mounted about the pivot point of said pivot shaft is provided, the lever having an open position when one end of the lever is elevated to a height above the pivot point, and the lever having a closed position in which the lever is positioned parallel to the fissure. A block is provided which is positionable between the lever and the body. The body is provided with longitudinal support ridges and the lever is provided with side ridges, with the pivot point positioned in substantially the same plane as the longitudinal support ridge so that when the punch is closed, the side ridges of the lever pass outside of the support ridges of the body in a nesting relationship, allowing the punch to form a flat profile when closed. |
| 主权项 |
1. A punch for punching a sheet of material, said punch comprising:
a body formed with a fissure for receiving the sheet of material, and a pivot shaft defining a pivot point; a lever pivotably mounted about said pivot point of said pivot shaft; a block positionable between said lever and said body, said block having a die movable along a first axis, said block further comprising first, second, and third shoulders; and first, second, and third resilient members, said resilient members disposed adjacent to said die and disposed between said first, second, and third shoulders of said block and said body; wherein when said block is positioned between said lever and said body, and when said lever is pivoted about said pivot point between a first open position and a second punched position, said lever engages said block having said axially moveable die to punch said sheet of material.
|
