Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Takashi Tomago

Yasunori Yanai

Yoshikazu Yagi

Takumi Nishimoto

Hisashi Watanabe

Koji Sako

Seiki Miura

Yukio Hashimoto

Masahiro Masuda

Takashi Kodani

Akira Ishigame

Kenji Kamio

A high waterproof compact push-on switch includes a first contact plate, a spacer, and a second contact plate laminated in this order. The first contact plate is substantially rectangular, and made of highly conductive flat sheet metal. The spacer is flat, rectangular, made of LCP resin, and has a circular center hole at its center. The second contact plate is substantially rectangular, made of highly conductive flat sheet metal, and has a circular central opening at its center. The spacer is thermocompression-bonded to the surfaces of the first and second contact plates so as to integrate them. On the second contact plate is provided a dome-shaped movable contact, which is covered with an adhesive protective sheet.

Push-on switch

A configuration of a push switch minimizes the extent to which the switch protrudes from a wiring board, and thereby allows for a device including the switch to have smaller dimensions. Minimizing the height by which the switch protrudes above the wiring board also minimizes the moment caused by the pressing the switch which is transferred to terminals soldered to the wiring board, and thus improves the mechanical strength of the attachment to the wiring board. The configuration includes, in part, a case having a terminal protruding therefrom, wherein a lower surface position of the terminal where soldering is performed is located above a bottom surface of the case.

Push switch and electronic device loaded therewith

A push switch which includes a switch case, a first movable contact, and a second movable contact. The switch case has a central fixed contact on an inner bottom face of its recess that has an open top, and a peripheral fixed contact. The first movable contact is curved protruding upward, and has a hole at its center. The first movable contact is disposed over the peripheral fixed contact with a space in between. The second movable contact is curved protruding upward, and is placed on the first movable contact. A pressing force for resiliently inverting the second movable contact is set greater than a pressing force for resiliently inverting the first movable contact; and two tactile feedbacks are produced by pressing from a side of the second movable contact.

Push switch

A press-fit fixing terminal is mountable to a wiring board by being inserted into a through-hole of the wiring board, and includes a flat plate section and a resilient contacting section. The flat plate section is made of metal thin plate and double-backed such that an end of the flat plate section is placed on a root side and a bent point works as an insertion tip when the terminal is inserted into the through-hole. The resilient contacting sections sandwich the double-backed portion of the flat plate section such that they are placed symmetrically with respect to the double-backed portion and both of the ridges of the resilient contacting section face outward viewed from the double-backed portion, so that each one of the resilient contacting sections forms a V-shape including an obtuse angle.

Press-fit fixing terminal, and electronic component having the same terminal

A rotary encoder includes a roller having substantially cylindrical shape, an inner shaft, a translucent cylindrical light guide shaft, a pair of holders, a light-emitting device, and a light-detecting device. The inner shaft is inserted and secured to a center hole of the roller, and has a slit at one end along a direction parallel to the axis thereof. The light guide shaft is inserted in the inner shaft so that one end of it is surrounded by the slit, and this guide has a first and second planes, and a first and second inclined planes. The first and second planes are formed on a lower side at both ends of the light guide shaft in parallel to the axis of the shaft. The first and second inclined planes are formed above the first and second planes at an angle of 45 degrees to the axis of the shaft, so that the two planes are substantially orthogonal to each other.

Rotary encoder

Fixed contacts and are provided on the bottom face B of recess A in switch housing . Two contact-receptors C, D are disposed at corners so as to confront each other on the bottom face B. Outer rim B of domed movable contact made of thin metal plate and bowed upwardly is placed on the receptors so that a lower face of top A of movable contact faces fixed contacts and . Flexible film is fixed so that film covers recess A and accommodates domed movable contact

Growing community of inventors

Okayama, Japan

Takashi Tomago