Toyota Jidosha Kabushiki Kaisha

Fujitsu Corporation

Kabushiki Kaisha Toyota Chuo Kenkyusho

Yasuhiro Tsuchiya

Katsumi Kondo

Masaki Terada

Yasushi Yamazawa

Takashi Yamamoto

Takatsune Niimi

Kunihiro Matsuba

Norio Sato

Toshio Kurauchi

Yuji Kageyama

Shigetoshi Sugiyama

Kenichi Sekiyama

Hitoshi Ozawa

Shinji Koike

Tosio Aoki

Yasutaka Iwasaki

Kensuke Kawai

Masatsugu Sakamoto

Satoru Fukushima

The present invention relates to holding a call being executed between communication devices in a communication system which has a first function for a holding party of the communication devices to hold the call by transmitting a first request signal to a held party and a second function for the holding party to hold the call by transmitting a second request signal to the held party and receiving a response signal. The holding party transmits the second request signal first and when the response signal is not returned within a given time, transmits the first request signal. A transit device for relaying a call between communication devices, unless detecting the response signal within a given time after relaying the second request signal, transmits the first request signal to the held party, generates the response signal and transmits the generated response signal to the holding party.

Communication device and transit device having a call-hold function and a method for controlling the function

A fiber reinforced plastics comprises a resin and chopped strands dispersed in the resin, wherein the chopped strands comprise glass fiber chopped strands composed of cut assemblies of glass filaments and high elastic chopped strands composed of cut assemblies of high modulus inorgtanic filaments having higher elastic modulus than the filaments and having 3000 or less number of assembled filaments. By this arrangement, the both chopped strands are closely and uniformly dispersed in the resin and the force interaction between the both chopped stands are enhanced. The resultant plastics has remarkably improved strength and fatigue durability, and higher rigidity than conventional ones.

Fiber reinforced plastics

A method for the manufacture of a fiber reinforced plastic structure, comprising the steps of winding a continuous long-staple fiber impregnated with a liquid resin around a plurality of winding jigs until the resultant bundle of resin impregnated fibers attains a predetermined thickness; setting rings tightly in place on the linear portions of the resin impregnated fiber bundle between the jigs; and moving the tightly set rings relative to the linear portions thereby wringing the resin impregnated fiber bundle and expelling bubbles entrapped within the fiber bundle.

Method for production of fiber reinforced plastic structure

A steering wheel core material of continuous filament FRP for vehicles which is made up of a ring, a boss positioned at the center of the ring, and spokes connecting the boss to the ring, said boss being integrally joined to a boss metal fitting. It is formed by winding resin-impregnated continous filaments in layer around the ring- and spoke-forming mold and the body of the boss metal fitting, with an elastic material interposed between the body of the boss metal fitting and the FRP.

Steering wheel core material

A core for a steering wheel made of a long fiber-reinforced resin in which a ring portion, a boss portion and a three spoke portions including a first spoke portion, a second spoke portion and a third spoke portion extending in a generally T-shaped configuration from the ring portion to the boss portion, are formed by bundles of continuous fibers reinforced with a resin. The cross-sectional area for the second spoke portion situated between the first spoke portion and the third spoke portion is made smaller than the cross-sectional area for the first spoke portion and the third spoke portion.

Core material for steering wheels made of long fiber-reinforced resin

A process for preparing a fiber reinforced plastic structure having points of branching, which comprises the steps of, positioning pins at points of branching in the structure and repeatedly hanging and repeatedly stretching a resin-impregnated strand of continuous long-staple fibers over and between said pins, thereby completing the structure of the points of branching.

Process for preparing a fiber-reinforced plastic structure having

A method for joining a fiber-reinforced plastic structure to a metallic insert for fitting around a rotary shaft is disclosed. The method comprises winding a resin-impregnated strand of continuous long-staple fibers around an engaging means formed on the metallic insert thereby effecting the desired union. By this method, a rotatable element such as a wheel, a hand-wheel or the like, such as a steering wheel can be produced.

Method for joining a fiber-reinforced plastic structure

An aluminum alloy cylinder block for use in a water-cooled internal combustion engine has a cylinder with a bore into which a piston is to be movably fitted. A water jacket provided on the outer side wall of the cylinder is adapted to allow the passage of water therein for cooling the engine. The depth of the water jacket from the top of the cylinder block is preferably from 0.2 to 0.5 times the length of the cylinder. A crank case has a side wall connected to the bottom of the water jacket, and a cylinder rib extends from the inside of the side wall of the crank case toward the water jacket.

Growing community of inventors

Toyota, Japan

Yasuhiro Tsuchiya