Abstract: In an optical fiber connector 1, optical fibers 2 are inserted respectively into ferrules 3 to form optical fiber plugs 4, and distal end portions of the optical fiber plugs 4 are inserted into a connector housing 6, and a holder 7 is fitted on the connector housing from rear end portions of the optical fiber plugs. The optical fiber connector 1 is fitted into a light receiving-emitting device 8, so that distal end surfaces of the optical fiber plugs are kept spaced a predetermined distance respectively from light receiving-emitting elements received within the light receiving-emitting device. The holder includes insertion holes 41 for respectively passing the optical fibers therethrough in a direction of insertion of the optical fiber plugs, and introduction notches 45 communicating respectively with the insertion holes in a direction intersecting the inserting direction.

Abstract: An optical connector 1 includes an optical connector plug 2, a connector housing 123, and a ferrule holder 122, and an urging member 3, having resilient, contractible legs 3b, is formed integrally on a ferrule 4 of the optical connector plug 2. The connector housing 123 has a receiving chamber 139 for receiving the ferrule 4, and is adapted to be fitted in a housing 124a of a mating connector 124. The ferrule holder 122 receives the optical connector plug 2, and is fitted on the connector housing 123, and the legs 3b abut against the ferrule holder 122 to maintain an urged condition of the optical connector plug 2 within the receiving chamber 139.

Abstract: An optical connector 1 includes an optical connector plug 2 including a photoconductive member 105, and a ferrule 3 receiving and retaining an end portion of the photoconductive member 105 therein. A coil spring 109 is retained on or fixed to the ferrule 3 at one end portion thereof. The optical connector further includes a connector housing 123, having a receiving chamber 139 for receiving the ferrule 3, and a ferrule holder 122. The other end portion of the coil spring 109, remote from the one end portion thereof, abuts against the ferrule holder 122 to maintain an urged condition of the optical connector plug 2 within the receiving chamber 139.

Abstract: An optical connector 21 includes optical connector plugs 2 and 2, a ferrule holder 22, and a connector housing 23, and the ferrule holder 22, in which the optical connector plugs 2 and 2 are removably received, is removably fitted in the connector housing 23. plug-introducing slits 33 and 33 are formed respectively through opposite side walls 32 and 32 of the ferrule holder 22 and also through part of a rear wall 26 thereof so that the optical connector plugs 2 and 2 can be removably mounted on the ferrule holder. The connector housing 23 has an elastic retaining piece portion 46 engageable with the ferrule holder 22 to prevent the withdrawal of the ferrule holder 22 from the connector housing, and the engagement of this elastic retaining piece portion can be canceled.

Abstract: In a cap for an optical connector, light-receiving/emitting modules are inserted in a housing body, and the cap is attached to the housing body, so that the light-receiving/emitting modules are fixed by the cap. Protuberances are formed on the cap, and project in an attaching direction so as to be abutted against the light-receiving/emitting modules to prevent the light-receiving/emitting modules from being displaced out of position. The protuberances have elasticity. Opposite ends of each of the protuberances may be cut off at an acute angle, so that a distal end of the protuberance is substantially pointed. Alternatively, each of the protuberances is longitudinally cut into a half.

Abstract: An object of this invention is to provide a thermoelectric apparatus, which is excellent in performance and has sufficiently high thermoelectric conversion ability.Supply means 6,7 for supplying a liquid heat transfer medium 21 against a side of a substrate with N-type semiconductor layers and P-type semiconductor layers supported thereon, said side being opposite to a semiconductor-layer-supporting side of the substrate, is arranged so that the liquid heat transfer medium 21 strikes against the opposite side of the substrate.

Abstract: A relay apparatus between relative rotary members has a first rotator (a rotator) having an inner cylindrical portion, a second rotator (a fixed body) having an outer cylindrical portion for surrounding the inner cylindrical portion at a predetermined interval, and for rotating relative to the inner cylindrical portion, a flexible flat cable coiled along the inside of the circular space between the inner cylindrical portion and the outer cylindrical portion, wherein the terminal portion of the inner circumference and the terminal portion of the outer circumference of the flexible flat cable are held in the inner cylindrical portion and the outer cylindrical portion, respectively, and a C-shaped mobile body is disposed in a freely movable manner for reversing the flexible flat cable in the aperture, wherein the mobile body is defined so that an inner circumferential side is polygon-shaped.

Abstract: A thermoelectric apparatus is composed of a heat-absorbing-side heat-exchanging base and a heat-dissipating-side heat-exchanging base having good thermal conductivity and arranged in a mutually opposing relationship with a group of thermoelectric elements interposed therebetween. The thermoelectric apparatus comprises a frame made of a synthetic resin material and holding one of the heat-absorbing-side heat-exchanging base and the heat-dissipating-side heat-exchanging base at an outer peripheral portion thereof. The frame and the other heat-exchanging base, which is not held by the frame, are both provided with extended portions extending substantially along and substantially in the same direction as a stacked direction of the heat-absorbing-side heat-exchanging base, the group of thermoelectric elements and the heat-dissipating-side heat-exchanging base. The extended portions are joined together.

Abstract: A relay apparatus between relative rotary members has a first rotator (a rotator) having an inner cylindrical portion, a second rotator (a fixed body) having an outer cylindrical portion for surrounding the inner cylindrical portion at a predetermined interval, and for rotating relative rotating to the inner cylindrical portion, a flexible flat cable coiled along the inside of the circular space between the inner cylindrical portion and the outer cylindrical portion, wherein the terminal portion of the inner circumference and the terminal portion of the outer circumference of the flexible flat cable are held in the inner cylindrical portion and the outer cylindrical portion, respectively, and a C-shaped mobile body is disposed in a freely movable manner for reversing the flexible flat cable in the aperture, wherein the mobile body is defined so that an inner circumferential side is polygon-shape, and its end portions are convex and concave.

Abstract: A relay device includes a first rotor having an inner cylinder, a second rotor having an outer cylinder, a flexible flat cable wound spirally in an annular space defined between the inner cylinder and the outer cylinder and a C-shaped moving member arranged so as to move along the annular space. The C-shaped moving member consists of an inner horizontal rib, an outer horizontal rib, an upper vertical rib and a lower vertical rib. When the flexible flat cable is rewound from the inner cylinder by the relative rotation between the inner cylinder and the outer cylinder, the contact area of the moving member with the cable can be reduced because the inner horizontal rib is in the form of a plate material projecting from the inner peripheral face of the moving member horizontally. Thus, it is possible to reduce the frictional force of the moving member on the cable and to prevent the cable from buckling.

Abstract: Pins are arranged on the upper surface of a rotary case of a rotary connector for electrically connecting the steering wheel and the steering column of a vehicle by a flexible flat cable, while the steering wheel is provided on the lower surface thereof with coupling holes for respectively receiving a corresponding pin in order to securely hold the rotary case. Each of the pins is provided with an elastic silicon rubber cap. The elastic cap comprises a cylindrical main body and a plurality of elastic members extending longitudinally along the axis of the cylindrical section. When viewed from above, the elastic members show an arcuately curved and tapered profile projecting from the base toward the tip.

Abstract: A relay device 10 between relative rotating members has a flexible flat cable 13 wound in a spiral shape and arranged in a ring space K between sleeve-shaped members (an inside cylindrical portion, an outside cylindrical portion) 11a, 12a relatively rotating on inner and outer sides. The sleeve-shaped members 11a, 12a are electrically connected to each other through the flexible flat cable 13. The flexible flat cable 13 is constructed such that at least one end portion (an inner circumferential end portion, an outer circumferential end portion) 13a, 13b of the flexible flat cable is held in one of the sleeve-shaped members 11a, 12a through a holding member (an inner circumferential end holding portion, an outer circumferential end portion) 13g, 13h and a direction of the flexible flat cable is changed outward from one of the sleeve-shaped members 11a, 12a through a bent portion 13e, 13f bent at a predetermined angle.

Abstract: A housing and a rotor are electrically connected to each other by the flexible flat cable accommodated in an annular space formed between the housing and the rotor; an opening portion of a carrier disposed in the annular space and having a C-shape in a plan view is formed to allow an inversion portion of the flexible flat cable to pass through; and a lubricating members are provided for the sliding surfaces of the carrier.

Abstract: An electrical connecting device includes a stator consisting of a cylindrical housing, a rotor, a flexible flat cable and a carrier. Being accommodated in an annular space defined between the rotor and the stator, the flat cable has an end fixed to the stator and another end fixed to the rotor. The carrier has a gap in the circumferential direction, providing C-shaped member. The flat cable is wound along the outer periphery of the rotor in one winding direction, while the flat cable is also wound along the inner periphery of the stator in the opposite winding direction, through a turning part of the flat cable. The carrier is provided with a pusher part for pushing the flat cable. The pusher part is formed to project from an inner edge of one circumferential end of the carrier toward another circumferential end around which the turning part of the flat cable is looped.

Abstract: A relay device includes a first rotor having an inner cylinder, a second rotor having an outer cylinder and a single cutter unit for cutting the flexible flat cable. In either case that, due to relative rotation of said first and second rotors, the flexible flat cable is wound around to the side of the inner cylinder over a predetermined volume or that the flexible flat cable is wound back to the side of the outer cylinder over another predetermined volume, the cutter unit serves to cut off the flexible flat cable. The cutter unit includes a C-shaped cutting arm having opposing base ends rotatably supported by the inner cylinder, a cutter holder attached to a leading end of the cutting arm and a cutter body mounted on the cutter holder so as to face the flexible flat cable at the leading end.

Abstract: An electric connection device interposed between a steering wheel and a steering column, comprising: a rotary body fixed to the steering wheel; a device housing fixed to the steering column; an internal gear fixed to the device housing; an annular flat cable carrier rotatably disposed in an annular space formed in the device housing; a plurality of planetary gears in mesh between an outer gear portion of the rotary body and an inner gear portion of the internal gear; a plurality of rollers mounted on the annular flat cable carrier; and a flexible flat cable connected between the rotary body and the device housing and arranged in the annular space of the device housing. Whenever the rotary body is rotated in either direction, the flexible flat cable is first reeled around the rotary body, reversed around one of the rollers at a reversal portion thereof, and then wound around the internal gear.

Abstract: An electrical connection device between a handle and a steering column for a vehicle includes a rotor, a housing for rotatably supporting the rotor and a flexible flat cable accommodated in an annular space defined by the rotor and the housing. The rotor is provided on an outer periphery thereof with a resinous C-ring of which frictional coefficient is smaller than that of the rotor. Consequently, when the rotor rotates with respect to the housing, the sliding resistance of the rotor rotating can be reduced by the C-ring, so that the sliding-noise can be reduced.

Abstract: An electrical connection device between a handle and a steering column for a vehicle includes a rotor, a housing for rotatably supporting the rotor and a flexible flat cable accommodated in an annular space defined by the rotor and the housing. The rotor has a tip having a convex curved-face, which is arranged at an axial end of the rotor. A part of the housing, which comes into contact with the tip of the rotor, is shaped to have a concave curved-face. With the arrangement, when the rotating direction of the rotor is reversed, the tip of the rotor would be guided by the concave curved-face of the housing, so that a plane-contact between the side of the rotor and the side of the housing can be avoided thereby to reduce the contact-noise.

Abstract: An apparatus for driving a rod antenna element for expansion or contraction according to the invention is characterized in that its rotary drum for winding or unwinding a base portion of a rope for expanding or contracting the antenna element is provided with a means for frictionally transmitting rotary force comprising a plurality of minute ridges and recess formed on the inner peripheral surface of the shaft bearing section in order to frictionally and directly or indirectly transmit in part the rotary force of an electric motor to the rotary drum and that the inner rope-sliding peripheral surface of a rope storage area of the rotary drum is flared from the remotest point thereof toward the rope inlet/outlet port to form a peripheral surface of a frustum of cone.

Abstract: A connector for a printed circuit board, having a terminal guide for guiding lead terminals, improved to suppress cracking or separation caused by a temperature change in the regions where the lead terminals are soldered to the printed circuit board. The connector has a housing having side walls on both longitudinal ends thereof, the side walls being provided with engaging grooves. The housing mounts a plurality of lead terminals which are led therefrom. The connector also has a terminal guide which is a substantially tabular member made from an insulating material provided on both longitudinal ends thereof with projections for engagement with the engaging grooves of the housing. The terminal guide has a plurality of lead terminal insertion holes formed at the same pitch as the lead terminals so as to receive these lead terminals.