NAGAYAMA ELECTRIC CO., LTD.
|NAGAYAMA ELECTRIC CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20120288345||T-NUT - A T-nut includes a cylindrical shaft section that opens at both ends and includes an internal thread at an inner peripheral surface thereof; a flange that extends outwardly from a first end portion of the shaft section; and a sealing member that seals the first-end-portion-side opening of the shaft section, and is formed of elastomeric resin. The sealing member includes a circular cylindrical portion and a dome-shaped cover, the circular cylindrical portion closely contacting the inner peripheral surface and opening at a first-end-portion side, the cover being formed continuously to an edge of the circular cylindrical portion at a second-end-portion side, a top of the cover facing the second-end-portion side, an outer peripheral surface of the circular cylindrical portion having an externally threaded long-and-narrow protruding portion that seals a space at a root of the internal thread.||11-15-2012|
|20100038607||APPARATUS FOR NAILING T-NUTS - There is provided an apparatus for nailing t-nut. The apparatus of the invention has a first nailing device. The first nailing device has a push bar; a rotation motion transmission mechanism; a first servo motor for moving the push bar up and down by means of the rotation motion transmission mechanism; a retaining portion to hold a t-nut; an alignment supplier to supply the t-nut to the retaining portion; and a receiving portion to hold a board. The apparatus further has a control device to control the rotation of the servo motor. The t-nut is release by the retaining portion when the push bar moves down. The upper end of the to-nut is pushed by the push bar. The push bar moves down at a speed faster than that of free fall of the t-nut when the retaining portion releases the t-nut, so as to nail the t-nut into the board.||02-18-2010|
|20090311069||INSERT NUT AND INSERT T-NUT - There is provided an insert nut comprising a hollow shank in a polygonal shape. A metal plate is provided. The metal plate has a first region. The first region has a rectangular shape having a horizontal direction and a vertical direction. The first region is pressed to form a plurality of convexes discontinuously aligned. The convexes are not formed at bend strips parallel to the vertical direction. The press process can be done by using, e.g., a die and a punch. The first region is bent at the bend strips to form a hollow shank. Thereby, the convexes serve as a female screw on an inner surface of the hollow shank. The hollow shank of the present invention has a cross section at a face perpendicular to an axis of the hollow shank. The cross section is polygonal.||12-17-2009|
|20090211058||SYNTHETIC RESIN MEMBER HAVING A FEMALE SCREW - There is provided a synthetic resin member, having a screw formation portion and synthetic resin body. The screw formation portion has: a cylindrical metal portion having a first end and a second end, a female screw part being formed on the cylindrical portion; a release prevention portion formed at the first end; a flange portion formed at the second end, the flange portion having a first surface and a second surface opposite to the first surface; and a rotation prevention portion formed on the first surface. The synthetic resin body has: a body portion perpendicularly extending to have a third end and a fourth end, the body portion having a screw engagement portion perpendicularly penetrating the body portion. The cylindrical metal portion is inserted into the screw engagement portion. The release prevention portion is caulked with the third end of the body portion. The rotation prevention portion is engaged with the synthetic resin body at or near the fourth end of the body portion.||08-27-2009|
|20090080998||INSERT NUT - There is provided an insert nut, having an outer hollow portion made of a resin material and an inner hollow portion made of a metal material. The outer hollow portion has a projection functioning as a male screw or wedge formed on an outer surface thereof. The inner hollow portion has a female screw formed on an inner surface thereof. The inner hollow portion is press-fitted to the outer hollow portion by inserting one end of the inner hollow portion into the outer hollow portion to reach a final position. Further insertion of the inner hollow portion is prevented beyond the final position. Said one end of the inner hollow portion is caulked with the outer hollow portion.||03-26-2009|
Patent applications by NAGAYAMA ELECTRIC CO., LTD.