Polymatech Co., Ltd.

Masayuki Itakura

Masataka Ohtake

Yukihiro Kidokoro

Disclosed is a damper that is easy to mount and capable of attenuating to a sufficient degree a vibration generated by an electronic component; also disclosed are an electronic component and an electronic apparatus that are provided with such a damper. A mounting insertion portion is provided with a hard portion maintaining the configuration of the mounting insertion portion.

Damper, and electronic component and electronic apparatus equipped with the damper

In a vibration preventing damper forming method and a vibration preventing damper integrally formed with a mechanical chassis according to the present invention, an opening side end portionof a damper housingand a vibration preventing damper forming portion of a mechanical chassisare made of a resin. The damper housingis mounted on the vibration preventing damper forming portion by the fixture of the resin portions. Thus, a vibration preventing damperis integrally formed with the mechanical chassis. For this reason, in supporting in a vibration proof manner and in a floating matter the mechanical chassiswithin an interior of a casingby means of the vibration preventing damper, it is possible to improve the working efficiency in mounting the mechanical chassisto the casingand to cope with the requirement of miniaturization of a mounting space between the interior of the casingand the mechanical chassis

Vibration proof damper forming method and damper integration type mechanical chassis

A damper has a flexible portion formed of a rubber-like elastic material, such as thermoplastic elastomer, and a lid portion whose inner peripheral portion is formed of the rubber-like elastic material. The flexible portion and the lid portion are respectively equipped with mounting recesses into which mounting shaft members oppositely arranged on a casing of a reproduction device are inserted to hold the damper. With this construction, there is no need to mount the damper such that the lid portion faces the side plate or the bottom plate of the casing. Therefore, it is possible to reduce the thickness of the reproduction device, and to increase the degree of freedom in the design of the casing. Further, since the damper is supported in a floating state, it is possible to obtain a superior vibration damping effect whether the device is installed in a vertical or horizontal position.

Damper and vibration proof structure for mechanical chassis

The present invention employs a high elastic body with E value more than 1.2.times.10.sup.4 kg/cm.sup.2 as the high elastic body to be used for a body frame which supports a mechanical chassis of optical disk equipment or the like, while it also employs an elastic body with E value less than 1.0.times.10.sup.4 kg/cm.sup.2 which aims at vibration damping and with rubber hardness JIS-A Class less than 70 as a low elastic body to be used for an installing portion of the mechanical chassis. By integral-molding both low and high elastic bodies, a frame damper is formed, thereby controlling and isolating even vibration caused by high double-speed rotation of a disk and by integral-molding both the low elastic body of the installing portion of the mechanical chassis and the high elastic body of the body frame, it omits an assembly process using a fixing pin and improves working efficiency.

Frame damper

To provide an an.isotropic damper using an elastic member having an E value two times or more larger than that of an elastic member for damping the vibration in the vertical direction to a portion for supporting the rotary part of an optical disk or the like and a mechanical chassis mounting an optical pickup and to the portion for damping the vibration in the planar direction, and comprising two types of elastic members for controlling the fluctuation in the relative distance between the optical pickup and the disk.

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Tokyo, Japan

Masayuki Itakura