Matsushita Electric Industrial Co., Ltd.

Seidensha Electronics Co., Ltd.

Katani Sangyo Co., Ltd.

Yasuyuki Sakamoto

Hiroshi Nakamoto

Tomotaka Orita

Tomoki Sakamoto

Shigeru Ogaya

Kiyonori Ishida

Kiyotaka Matsuura

Toshiyuki Hanada

Fumio Orito

Masanori Mizutani

Kazunori Shimoyama

The present invention is configured so that one light emission source such as a light emitting diode is placed inside an operation knob in front of a light guiding piece or in a bearing of the operation knob. A light beam from the light emission source is emitted to the interior of the operation knob. A reflected indirect light irregularly reflected inside the operation knob is received by the light guiding piece located at a rear surface of the operation knob. The light guiding piece has a transmission and diffusion function. The light is then guided toward an outer periphery to illuminate the rear surface of the operation knob.

Illuminating apparatus for operating section

A method of securing to an operating lever in the form of an elongated metal plate an operating button made of thermoplastic resin and including a mounting tongue of a generally tubular configuration having a hollow defined therein. An anchor perforation and a stopper pawl are first formed in the operating lever and the operating button is then temporarily mounted on the operating lever with the operating lever slid into the hollow of the mounting tongue until an abutment defined in the mounting tongue and positioned within the hollow is brought into engagement with the stopper pawl. While the operating button is thus temporarily mounted on the operating lever, the operating lever is placed on a support bench with one of opposite surfaces of the operating lever held in contact with the support bench, and a pressure is subsequently applied to an area of the mounting tongue which is substantially aligned with the anchor perforation by means of a presser to thereby form an anchor peg protruding into the anchor perforation in the operating lever.

Method of securing knobs on levers

Growing community of inventors

Daito, Japan

Yasuyuki Sakamoto