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.

Date of Patent:
Sep. 28, 1999

Filed:

Feb. 12, 1997
Applicant:
Inventors:

Jiro Nakamura, Ibaraki, JP;

Akitoshi Matsumoto, Komaki, JP;

Assignee:

Daifuku Co., Ltd., Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
104111 ; 104106 ;
Abstract

Connection of rails (11, 11, 15, 15) or manufacturing of yoke members can be facilitated and necessity of a special bending device can be eliminated by configuring end yoke members (21) and intermediate yoke members (20) to have the same planar plate form. Welding lines can be shortened and the rails (11, 15) can be connected speedily by welding predetermined locations of the yoke members (20, 21) to predetermined surfaces of the rails (11 and 15). By interposing intermediate members (24) filling welding margins (L) at a stage to couple the end yoke members (21) with each other by way of coupling implements (26), coupling forces are directed to act on the intermediate members (24) and not to act between end surfaces (11b, 11b) of the rails or between end yoke members which are liable to be deformed.


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