Abstract: There is provided an EUV transmissive membrane including: a main layer composed of metallic beryllium that has a first surface and a second surface; and a pair of surface layers provided on the first surface and the second surface of the main layer, each containing at least one fluoride selected from beryllium fluoride, beryllium fluoride nitride, beryllium fluoride oxide, and beryllium fluoride nitride oxide.

Abstract: A slider stopping mechanism for an automatic seatbelt system which is supported by a guide rail extending in a longitudinal direction of the vehicle and having a groove extending in the same direction and is adapted to stop the movement of a slider at one end of the guide rail so as to apply a webbing to a seat occupant or cancel the application thereof as the webbing is moved in the transverse direction by a driving apparatus. The slider stopping mechanism includes a switch inserted in the groove from the end portion and adapted to stop the driving of the driving apparatus when the slider reaches a predetermined position, as well as a shock-absorbing member which is disposed in the groove in such a manner as to be located adjacent to the switch and with which the slider is brought into contact. Hence, the slider is prevented from coming into direct contact with the switch.

Abstract: A structure for supporting a guide rail of an automatic seat belt apparatus of a vehicle on a side wall of the compartment via a holder engageable with the sides of the guide rail that are arranged in the widthwise direction of the compartment, the guide rail slidably supporting a slider and being adapted to guide the slider in the to-and-fro direction of the compartment, the slider being kept in engagement with one end of a webbing adapted to be worn by an occupant of the vehicle. The holder is engaged with the side portion of the guide rail that is outward in the widthwise direction of the compartment at an engagement portion formed in the vicinity of the end portion of the guide rail that is remote from the webbing with respect to the slider. Therefore, the holder is kept from readily being disengaged from the engagement portion even when the guide rail is, via the slider, subjected to a lateral force acting to pull the webbing inwardly of the compartment.

Abstract: The print head has armatures each provided with a holding part connected to one end of a spring plate. For avoiding concentration of a tensile stress on a brazed part between the holding part and the spring plate, part of the holding part extending contiguously to one side of the spring plate, subjected to a compressive stress when the spring is bent, is longer than the part of the holding part extending contiguously to the other side of the spring plate subjected to a tensile stress when the spring plate is bent.

Abstract: A print head adapted to be used for a dot-printer. A novel support device is disposed in the print head for pivotally supporting one end of each of a plurality of armatures on a support member. The support device in this invention comprises; (a) a leaf spring disposed longitudinally of the armature, secured at one end thereof to the support member and at the other end thereof to the armature, and provided in a middle portion thereof with a through-bore, and (b) a wire spring extending through the through-bore in the leaf spring at a right angle thereto, and secured at one end thereof to the support member and at the other end thereof to the armature.

Abstract: An armature support device for rotatably supporting, in a print head, one end of an armature which holds a print wire at the other end thereof. The support device comprises a support member and a spring member. The spring member is made of a piece of a resilient wire, including a fixed portion of a hair pin shape to be secured to the armature, a pair of arm portions extending oppositely on the same axis from both ends of the fixed portion for functioning as a rotational fulcrum for the armature, a pair of leg portions further extending, by being perpendicularly bent, from both ends of the arm portions for being firmly fixed to the support member. The armature is biased toward a predetermined position by torsional resilient force of the arm portions of the spring member, and it is rotated about the arm portions by an electromagnetic device twisting the same to advance or restore the print wire.

Abstract: A print head for a serial dot-printer which includes improved structure to fix each print wire to a pivotable armature. The armature is provided with an arm portion which is made of a stainless steel plate and consists of a pair of mutually opposed side portions and a connecting portion connecting the side portions. Inner surfaces of the front areas of the side portions are welded to each other at the free end portion of the arm. A first supporting full 360.degree. aperture is thus formed between the welded side portions perpendicular to the longitudinal direction of the armature, and a second print wire supporting aperture is formed in the connecting portion and is spaced by a predetermined distance from the first supporting aperture. The rear end of the print wire is inserted through the first supporting aperture until it reaches the second supporting aperture where it is welded to the internal surface of the second supporting aperture in the connecting portion.

Abstract: A print head for use in a dot-matrix printer consisting of a plurality of print wires, a guide member with a nose portion for guiding the print wires, a plurality of armatures, an armature support member for supporting one end of the armatures corresponding to each of the print wires, and an armature drive device having a magnetic member with electromagnets respectively corresponding to the armatures. The guide member, the armature support member and the magnetic member are firmly connected in that order by a hollow cylindrical connecting member which fits on the connected members from the side of the last member. The front end of the connecting member is secured by laser welding or the like to the periphery of the guide member, and a plurality of resilient tongues formed on the rear end thereof are engaged with the magnetic member to bias the magnetic member and the armature support member toward the guide member.

Abstract: A wire printer printing head comprises a support member, a plurality of printing elements having a print wire with a flap-armature electromagnet and a sound absorbing cover. The printing element are radially and slidably mounted to the support member and adjustable to a mounting position of each printing element with respect to the support member by an eccentric pin. The sound absorbing cover composed of a core plate and sound absorbing material is secured to the support member and surrounds all printing elements.

Abstract: A flap-armature electromagnet comprises a U-shaped yoke, a pole core, a coil, a flap-armature, a compression spring and a coil spring. The flap-armature is rockingly supported on the yoke by means of projections formed at the upper rear end of the yoke and notches formed at both sides of the flap-armature. Each end of the coil spring is connected to each of the projections for pressing the flap-armature on a rocking axis of the flap-armature.