Tokyo Shibaura Denki Kabushiki Kaisha

Topy Kogyo Kabushiki Kaisha

Tetsu Sano

Yoshinobu Sakashita

Kei Takagi

Kikuya Ito

Hisao Ishiwata

Hidero Anno

Yoshimitsu Aramaki

Tatsuo Simizu

Takezou Yasuzuka

Tatuo Shimizu

Yuichiro Kume

A wheel for vehicle comprising: a rimhaving a drop portion; and a diskformed integrally from a plate material, the rim and the disk being welded together, wherein the disk has: a hub mounting portion; a plurality of spokesradially extending from the hub mounting portion toward an outer periphery of the disk; and a ring-shaped disk flangethat is connected to the spokes through a curved-surface connecting portion R that is formed by bending the spokes at an outer circumferential end thereof in a wheel axial direction, the disk flange extends in the wheel axial direction, and a decorative holeis defined by the adjacent spokes, the hub mounting portion, and the disk flange, and a part that faces a distal endof the spoke in a fitting area between an inner circumferential surface of the rim and an outer circumferential surface of the disk flange is welded.

Wheel for vehicle

A method comprising: a step of preforming a plurality of bulging portions on a substantially circular plate blank, the bulging portions being located concentrically and circumferentially outward of a bolt hole, each of the bulging portions being a base of a reinforcing portion of a spoke; a step of forming a plurality of prototypical decorative holes on the respective bulging portions to form a prototypically-shaped spoke between the adjacent prototypical decorative holes; a step of forming a disk flange by bending an outer circumferential portion of the plate blank, on which the prototypical decorative holes are formed, at a right angle to be substantially parallel to a wheel axial direction, so that an outer periphery of a resultant decorative hole forms an upper end edge of the disk flange; and a step of forming the spoke by providing the prototypically-shaped spoke with the reinforcing portion.

Spoked wheel disk manufacturing method and spoked wheel

An image intensifier has a phosphor screen, the phosphor screen having a mesh-like substrate and a phosphor layer supported by the mesh-like substrate and to be excited by electron rays. The image intensifier provides an output image with high contrast and brightness.

Image intensifier

A vacuum vessel, used for such as an X-ray image intensifier, is provided with a radiation-permeable window member prepared from titanium or alloys thereof. The window member is supported on a support frame of iron or alloys thereof by resistance welding. A method of manufacturing the vacuum vessel comprises the steps of: successively spot welding the periphery of the window member by resistive heating to a support frame made of iron or alloys thereof with a pressure of 40-200 kg/cm.sup.2 while interposing a metal foil insert member having a lower melting point than the transformation point of the window member between the window member and the support frame; and hermetically sealing the periphery of the window member in the support frame.

Method of manufacturing a vacuum vessel provided with a

In an image intensifier comprising an evacuated envelope which comprises a cylindrical vessel, an input window member airtightly sealed to one end of the vessel, and an output container formed at the other end of the vessel, at least said one end portion of the cylindrical vessel is formed of metal, the input window member has a multilayer structure including an outer thin plate formed of metal weldable to the metal which constitutes at least said one end portion of the cylindrical vessel and an inner thin plate formed of aluminum or aluminum alloy which is thicker than the outer thin plate, the peripheral portion of the inner thin plate is pressure-bonded to an inner portion of a flange at the one end portion of the cylindrical vessel, and the peripheral portion of the outer thin plate extends beyond the peripheral portion of the inner thin plate and is fused with an outer portion of the flange.

Growing community of inventors

Tokyo, Japan

Tetsu Sano