Abstract: A semiconductor mechanical sensor having a new structure in which a S/N ratio is improved. In the central portion of a silicon substrate 1, a recess portion 2 is formed which includes a beam structure. A weight is formed at the tip of the beam, and in the bottom surface of the weight in the bottom surface of the recess portion 2 facing the same, an electrode 5 is formed. An alternating current electric power is applied between the weight portion 4 and the electrode 5 so that static electricity is created and the weight is excited by the static electricity. In an axial direction which is perpendicular to the direction of the excitation of the weight, an electrode 6 is disposed to face one surface of the weight and a wall surface of the substrate which faces the same. A change in a capacitance between the facing electrodes is electrically detected, and therefore, a change in a physical force acting in the same direction is detected.

Abstract: An apparatus for holding an object includes a plurality of holding pins and restricting means for restricting displacement thereof. The holding pins are retained on a guide member in a manner movable in the direction projecting therefrom and are displaced to a holding position where the geometry formed by their respective terminal ends upon contact with an object to be held conforms to the contour of said object to be held. The restricting means contacts the outer side surface of the holding pins so as to restrict their movement in the state where the holding pins are displaced to the holding position.

Abstract: An information reading device for use in a system in which a plurality of slave devices, including the information reading device, are connected to a master unit through a common signal line. The information reading device controls an interrupt signal from the master unit and is provided with an irradiation portion for irradiating electromagnetic waves on a recording medium (i.e., bar code), a signal converting portion (i.e.

Abstract: A plastic part composed primarily of a polyamide resin such as 6-nylon blended with another mutually-soluble resin, the part capable of withstanding environmental stress cracking caused by deicing salts containing calcium chloride. The resin blend has a saturation water absorbability of less than 6.0%. Under use conditions, such plastic parts, typically in the form of radiator parts, water separators and the like, have very few cracks and have an excellent strength and thermal resistance.