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:
Jun. 25, 2019
Filed:
Feb. 23, 2016
Hitachi Construction Machinery Tierra Co., Ltd., Koka-shi, Shiga, JP;
Takuya Nomura, Rittou, JP;
Tatsuo Takishita, Koka, JP;
Masayuki Yunoue, Koka, JP;
Takeyuki Omiya, Rittou, JP;
Wataru Takagi, Moriyama, JP;
Hitachi Construction Machinery Tierra Co., Ltd, Koka-shi, JP;
Abstract
Provided is a grip heater apparatus for a construction machine that can improve operability by heating the grip portions of left and right operating levers and maintaining a favorable operating environment for the left and right operating levers when work is carried out in a cold region and the operator's hands get cold. The grip heater apparatus includes: left and right grip heatersandprovided in grip portions of left and right operation leversand, respectively; a battery supplying electric power to the left and right grip heaters; a heater switchfor instructing the left and right grip heaters to be turned on or off; and a control device supplying the electric power from the battery to the left and right grip heaters only when the engine is running, the gate lock leveris at a getting-on/off prevention position, and the heater switch instructs the left and right grip heaters to be turned on.