| 摘要 |
A carrier sleeve ( 32 ) surrounds a post ( 14 ) that extends upwardly from a base ( 12 ). A lower platen ( 18 ) is mounted on the base ( 12 ). A horizontal support arm ( 16 ) is mounted on the upper portion of the post ( 14 ) An upper platens ( 20 ) is mounted on the support arm ( 16 ) above the lower platen ( 18 ). A work piece support ( 26 ) is mounted on the post ( 14 ) between the upper and lower platens ( 18, 20 ). The work piece support ( 26 ) is connected to the carrier sleeve ( 32 ) and is movable up and down along the post ( 14 ). A spring ( 36 ) is positioned below the carrier sleeve ( 32 ) between the carrier sleeve ( 32 ) and a portion of the base ( 12 ). In a relaxed condition, the spring ( 36 ) holds the work piece support ( 26 ) in a position that is vertically between the upper and lower platens ( 18, 20 ) when the upper platen ( 20 is raised. The upper platen ( 20 ) is movable downwardly into contact with the work piece support ( 26 ). After contact is made, the upper platen ( 20 ) is movable further downwardly so as to move the work piece support ( 26 ) downwardly into contact with the lower platen ( 18 ). There is a detachable connection ( 42, 54 ) between the carrier sleeve ( 32 ) and the adjacent end of the work piece support ( 26 ) enabling the work piece support ( 26 ) to be quickly attached and detached to the carrier sleeve ( 32 ).
|
