Unisia Jecs Corporation

Littelfuse Japan G.k.

Olympus Optical Company, Ltd.

Hitchi, Ltd.

Takayuki Yokota

Hidekazu Aoki

Hisao Yabe

Hideo Ito

Yasuhito Kura

Masaaki Nakazawa

Hiromichi Komai

Masaaki Iwai

Koji Nakamoto

Naotaka Ikawa

Takahiro Kuroha

Yoshimichi Takano

Keiichiro Nomura

Nobuyuki Shibahara

Hirotsugu Takegawa

Masanori Oinuma

Hideki Sunada

A protection device including: (i) a protection component having a first thermal fuse and a resistive body, the resistive body being supplied with a current in an abnormal state to generate heat, the heat activating the first thermal fuse to cut off the current; (ii) a PTC component; and (iii) a second thermal fuse, the second thermal fuse being electrically connected in series to the PTC component, the first thermal fuse of the protection component being electrically connected in parallel to the PTC component and to the second thermal fuse, and the protection component being activated in the abnormal state so that the PTC component trips to generate heat, the heat blowing the second thermal fuse.

Protective device

The present invention provides a protection device which includes a laminar elementwhich is formed of an insulation resin and has at least one throughhole; electrically conductive metal thin layersandwhich are positioned on each of main surfaces of the laminar element, and a fuse layerwhich is positioned on a side surface defining said at least one throughhole and electrically connects the electrically conductive metal thin layers. The fuse layer includes a first metal layerconsisting of a metal having a higher melting point and a second metal layerconsisting of a metal having a lower melting point. The protection device of the present invention allows a larger amount of a current to flow therethrough and can provide a protection from an excessive current.

Protection element

A support device of a propeller shaft comprises an annular bracket fixed to a floor member of a vehicle body; an annular elastic member disposed in the annular bracket; an annular supporting structure disposed in the annular elastic member and rotatably supporting a cylindrical given portion of the propeller shaft through a ball bearing unit; and an annular seal member intimately disposed in an annular space defined between the annular supporting structure and the cylindrical given portion of the propeller shaft. One of outer and inner cylindrical surfaces of the annular seal member is in slidable contact with either one of an inner cylindrical surface of the annular supporting structure and an outer cylindrical surface of the cylindrical given portion of the propeller shaft. A rust-proofing member is further provided, which is disposed on either one of the inner cylindrical surface of the annular supporting structure and the outer cylindrical surface of the cylindrical given portion of the propeller shaft, to which the outer or inner cylindrical surface of the annular seal member directly and slidably contacts. The rust-proofing member is made of a rust-resistant material.

Support device for supporting propeller shaft and propeller shaft itself

A coupling for coupling first and second shafts is described. The coupling comprises an annular unit including a plurality of annular metal plates which are put on one another, a first group of bolt bores formed through the annular unit, a second group of bolt bores formed through the annular unit, a first group of bolts and nuts which are incorporated with the first group of bolt bores to fix the annular metal plates, a second group of bolts and nuts which are incorporated with the second group of bolt bores to fix the annular metal plates, a first yoke which connects the first shaft to the first group of bolts and nuts, and a second yoke which connects the second shaft to the second group of bolts and nuts. A stopper structure is further provided by which every mutually contacting portions of the annular metal plates are suppressed from making a relative displacement therebetween.

Coupling for coupling two shafts

A shaft coupling includes an annular plate having a proper axial flexibility. The annular plate is formed with mounting holes. A first group of coupled portions are fixedly connected to an input shaft, whereas a second group of coupled portions are fixedly connected to an output shaft. The first and second groups of coupled portions are coupled with each other through the annular plate placed therebetween, so that the first and second groups of coupled portions circumferentially alternate with each other. The annular plate has coupling arm portions each extending between two adjacent mounting holes to absorb axial vibrations. A radial width of the coupling arm portion is dimensioned to be narrower than a radial width of a peripheral region of each of the mounting holes. A length of the coupling arm portion is dimensioned to be longer than a distance between the two adjacent mounting holes.

Flexible shaft coupling for vehicles

A device to be incorporated in the housing of the operation section of an endoscope, for operating a bending mechanism incorporated in the insertion section of the endoscope, comprises an operation shaft and a holder. The operation shaft has a distal end connected to the bending mechanism and a proximal end portion projecting from an operation section of the endoscope. The holder is mounted on a distal end portion of the operation shaft and comprises an upper and lower cover which are joined together and which define an outside surface and a hollow cylindrical space around the operation shaft. The upper and lower covers abut each other to form an interface on the outside surface.

Device for bending the insertion section of an endoscope

Growing community of inventors

Narita, Japan

Takayuki Yokota