Yamaha Corporation

Katsuya Tanaka

Kotaro Mizuno

Masao Yoshida

Tadashi Morikawa

A speaker unit mounting structure includes a provisionally fastening mechanism for fastening a speaker unit to a ceiling with a cabinet section of the speaker unit inserted in a mounting hole of the ceiling. The provisionally fastening mechanism includes a provisionally fastening tab formed of resilient metal, fixed to the outer peripheral side surface of the cabinet section and having a stepped engaging section engageable with the inner peripheral edge portion of the mounting hole. Engagement of the engaging section with the inner peripheral edge portion of the mounting hole can be canceled by a human operator pressing, from the face side of the ceiling, an operating section of the tab, exposed to a gap between the front side and a flange portion of the speaker unit, to thereby resiliently deform the operating section.

Speaker unit and speaker unit mounting structure

A mounting ring with which an engaging hook of a fall-preventing member is to be engaged and a flexible handle member are fixed within an area of a cabinet section that is located upward of a first plane passing through the position of a center of gravity of the cabinet section generally in parallel to the bottom surface of the cabinet section and located to one side of a second plane passing through the position of the center of gravity in intersecting relation to the first plane. The speaker unit hung by the handle member being held with a hand of a human operator is inclined, so that the mounting ring is oriented upward near the hand. Thus, the human operator can perform with ease an operation for engaging the engaging hook with the mounting ring with one hand while holding the handle member with the other hand.

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Hamamatsu, Japan

Katsuya Tanaka