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:
Sep. 29, 1998
Filed:
Apr. 24, 1996
Tomoru Tohyama, Machida, JP;
Asahi Corporation, Tokyo, JP;
Abstract
A runnable block including a block body having a first engage projection and first engage recess respectively provided on the top and bottom surfaces of the block body, and four wheels rotatably attached to both sides of the block body via wheel shafts. A part of each wheel of this block protrudes farther downward than a lowermost surface including the lower engage section, and the diameter of each wheel is set approximately equal to the distance from the top of the first engage projection to the bottom of the first engage recess. As one block is coupled to another block by engaging the first engage projection of the former block to the first engage recess of the latter block, the wheels of both blocks mutually contact each other. This contact allows the rotation of one wheel to be transmitted to the other wheel, so that when the coupled blocks run, all the wheels of the blocks rotate.