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. 10, 1998
Filed:
Jul. 23, 1997
Satoru Koyanagi, Tokyo, JP;
Yukio Tamura, Kawasaki, JP;
Toru Nakayama, Kamakura, JP;
Katsuhiro Ikegami, Kawasaki, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
The present invention is a mobile crusher and a method for controlling the same, wherein the most suitable amount of crushed substances can be always secured so as to obtain crushed substances having a desired particle size distribution. To this end, the crusher mechanism includes an actual rotational speed changing means (1, 2, 3); an actual rotational speed detecting means (4); a rotational speed setting means (7) for setting at least one target rotational speed Nm for the crusher mechanism (13) and for setting, for each target rotational speed Nm, a rotational speed Na indicating a starting of supplying raw materials and a rotational speed Nb indicating a stopping of the supplying of raw materials; and a control means (6) for controlling the crusher mechanism such that an actual rotational speed N coincides with the target rotational speed Nm, starting the supplying of raw materials from a raw material supply device (14) when the actual rotational speed N increases to a rotational speed Na, and stopping the supplying of raw materials when the actual rotational speed N decreases to the rotational speed Nb.