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. 02, 1993
Filed:
Feb. 25, 1993
Koji Kato, Tokyo, JP;
Kiyoshi Shimura, Tokyo, JP;
K & K Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A pole device for a skiing contest comprises a cylindrical member to be embedded in a snow ground, a pole base member to be fitted into the cylindrical member and a pole portion fitted into the pole base member. The pole base member is formed with grooves extending in an axial direction thereof on an outer peripheral surface thereof and the cylindrical member is formed with projections at an inner peripheral surface thereof. Each of the projections has an outer shape to be fitted in the groove. The groove is composed of a first guide groove having an end portion through which the projection enters the groove, a second guide groove formed to be continuous to the first guide groove through a circumferintially shifted groove portion and a circumferential fitting groove formed at a portion near upper end of the pole base member to be continuous to the second guide groove. A pair of grooves are formed on the outer peripheral surface of the pole base member in an axial symmetrical arrangement and a pair of projections are formed on the inner peripheral surface of the cylindrical member in an axial symmetrical arrangement. A triangular guide piece is formed to an edge portion of each of the circumferentially shifted groove portions so as to project inward thereof.