The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2000
Filed:
Jan. 13, 1999
Abstract
An automatic pallet changer is composed of a pallet lifting mechanism and a revolving mechanism. The pallet lifting mechanism has a pallet platform and a lifting rod which is fastened with the bottom of the pallet platform. The pallet platform and the lifting rod are driven by oil pressure to move up and down in a linear manner. The body of the lifting rod is provided with a vertically-oriented first position confining portion. The revolving mechanism has a gear and a rack gear member. The gear is pivoted to the bottom of the pallet lifting mechanism at a fixed height and provided axially with a slide channel in which the lifting rod is slidably disposed. The slide channel is provided in the inside thereof with a vertically-oriented second position confining portion, which is complementary in shape to the first position confining portion of the lifting rod for enabling the lifting rod and the pallet platform to turn synchronously. The rack gear member is engaged with the gear so as to drive the gear to rotate.