Abstract: A mold used for press-molding precision parts, such as an optical element formed of glass. A carbon film is formed at least on the molding surface of a matrix of the mold via an intermediate layer or without such a layer. The carbon film is shaped with a carbon ion beam having a desired ion energy such that a plurality of projections having an average height of from 0.5 to 30 nm are arranged at an average pitch of from 5 to 30 nm. Such a shape of the carbon film decreases the surface energy and frictional coefficient of the film and increases adhesion strength of the film to the matrix without impairing the surface roughness of an optical element to be molded. Thus, a resultant mirror surface of the mold is highly durable, free from film peeling and cracks in the formation of glass.

Abstract: A method and device for controlling a headrest, as well as a headrest drive mechanism, wherein the headrest is to be controlled so as to cause the same to automatically return to the use position if it disposed and stopped between an intermediate position and use position.

Abstract: A cover structure for covering a slide rail of a seat adjuster, wherein there is provided cover member extending over a required length of lower rail and its rearward end side as well as the leg support member fixed to the lower rail. An integral covering lug of the cover member overlies a head of rivet adjacent the rearward end of cover member.

Abstract: A method of assembling a seat back of split type, which involves preparing a lower seat-back frame having a pre-formed upper seat-back section, then forming a lower seat-back upholstery unit having an upper opening therein, and producing the seat back by inserting the upper seat-back section though the opening of lower seat-back upholstery unit.

Abstract: An armrest for a vehicle seat, wherein armrest is rotatable between a use position for supporting an arm of an occupant and non-use position where the armrest body stands upright along the vertical direction of the seat back of the seat, under the force of a return spring, and wherein there is arranged a buffer means for reducing a rotation rate at which the armrest is rotated downwardly to the non-use position. Thus, the armrest body may be rotated at a moderate rate towards the non-use position, thereby avoiding a serious collision of the armrest body against a part of the vehicle.

Abstract: A seat back structure of an automotive seat comprising a back support plate, plural springs, and torsion bar. The back support plate is supported in a seat back frame by the springs and torsion bar in a more positively resilient way. The provision of the torsion bar avoids the sudden backward movement of the back support plate which has been found in a conventional seat back structure wherein the support plate is only supported by springs.

Abstract: An arrangement of an arm rest in an automotive seat, with a collar interposed via a support rod between the arm rest and lateral wall of the seat, wherein the collar is formed to conform to the curved surface of that lateral wall of the seat, to thereby prevent creation of the clearance and thus avoid objectionable view of the support rod in the collar.

Abstract: In a method of molding an optical device by press-molding a glass preform by using molding dies, the press-molding process is executed under a mixed gas atmosphere of a nonoxidizer gas and a hydrocarbon gas.

Abstract: A structure of a vehicle seat, wherein the seat is formed by a trim cover assembly and a foam padding covered therewith, the trim cover assembly being composed of an animal-leather surface covering layer, a wadding and a wadding cover. While the animal-leather surface covering layer is merely placed on the foam wadding without any adhesive, the wadding cover is bonded to the uneven surface of the foam padding by an adhesive, with the surface covering layer sewn with the foam wadding and wadding cover, to thereby avoid creation of wrinkles and appearing of the back skin rough creases on the outer surface of the trim cover assembly.

Abstract: There is disclosed an apparatus for producing optical elements, provided with a conveyor for transporting carriers for materials of optical elements into an evacuatable process chamber, and with a heating system for the material supported by the carrier, a forming system for the material supported by the carrier while the material is heated by the heating system, and a system for depositing a thin film to the material formed by the forming system and supported by the carrier.

Abstract: A headrest for seats for use in vehicles has a fixed frame fixedly secured to the upper ends of stays supported on a seat back, two right and left movable frames secured to a panel of the headrest, and two pairs of parallel links connecting the fixed and movable frames; a first pair connecting the right movable frame to the right end portion of the fixed frame, and a second pair connecting the left movable frame to the left end portion of the fixed frame. One of the first pair of links is connected with one of the second pair via a connecting portion. With such structure, the headrest can be moved back and forth with little change in height, and, since there are no moving parts present in all portions of the headrest except in the two end portions of the fixed frame, a throughbore can be provided in the central portion of the headrest.