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:
Oct. 09, 2001
Filed:
Dec. 01, 1999
Katsuhisa Yamada, Saitama, JP;
Yoji Kanaoka, Saitama, JP;
Koichi Shimamura, Saitama, JP;
Takehiro Nonaka, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
To provide a bass-reflex speaker assembly having superior water resistance and which can be mounted on a motorcycle, while not being subjected to the influence of negative pressure due to wind during travel and which is capable of maintaining superior sound quality. A resonant duct projects downwards at an incline at a bottom surface of a speaker enclosure. It is therefore difficult for rain water to enter because the duct opens downwards and water that may enter temporarily can be easily discharged from the same duct. Furthermore, when speakers are positioned within the cowling of the motorcycle, negative pressure occurring due to wind when the vehicle is travelling acts not only on the front surfaces of paper cones of the speakers, but also on the rear surfaces via the ducts. Therefore, superior sound quality can be maintained without the influence of negative pressure being incurred and a bass-reflex speaker assembly suited to motorcycles is therefore possible.