摘要:
The present invention provides a magnetic recording medium, in which a binder does not migrates toward the surface of a magnetic layer and which has high durability. Said magnetic recording layer comprises at least one type or more of organic phosphorus compounds selected from the following formulae (1) to (3) and a binder, which contains an amino group or a quaternary ammonium base: ##STR1## where R represents substituted or non-substituted alkyl group, alkenyl group or aryl group, M represents hydrogen atom or alkali metal or ammonium, and n is 1 or 2.
摘要:
An automobile multiplex communication system has a plurality of control units mounted on an automobile and interconnected by a communication cable for multiplex communications therethrough between the control units. The communication cable has a uniform characteristic impedance and comprising a plurality of communication cable segments. A plurality of modified-impedance units, each having an impedance different from the uniform characteristic impedance, are each connected between adjacent two of the communication cable segments. The modified-impedance units are positioned in such locations on the communication cable that frequency bands of external noises tuned to the communication cable segments depending on their lengths are higher than a frequency band of a signal transmitted between the control units, and frequency bands of radiant noises tuned to the communication cable segments depending on their lengths are higher than a frequency band of a signal received by an electronic device mounted on the automobile.
摘要:
An automobile multiplex communication system has a plurality of control units mounted on an automobile body and having respective circuits which are connected to communication signal lines through respective connectors for multiplex communications between the control units. Shield wires which cover the communication signal lines between the control units are electrically separate from the connectors and connected to ground. The shield wires have respective ends grounded to a conductor of the automobile body outside of the control units or grounded to conductor housings of the control units.
摘要:
A data transmission system for a vehicle includes a plurality of control systems installed on the vehicle, and a network bus connecting the plurality of control systems with each other for circulating a transmission right through the plurality of control systems to thereby perform transmission of a message between the plurality of control systems. According to a first aspect, each of the control systems starts transmitting data when it is detected that the transmission right is not generated or lost from the system, and continues transmitting the data when no collision of data transmitted from the present control system with data transmitted from the rest of the plurality of control systems, or when by mediation for avoiding the collision is detected, it is determined to continue data transmission. According to another aspect, the maximum number of times of retransmission to be permitted is determined according to a type of failure in transmission identified, and the retransmission is performed so long as the number times of retransmission of the data does not exceed the maximum number of times of retransmission to be permitted. According to a still another aspect, the message comprises a first response field for receiving a first acknowledging response output from a control system having received the transmission right, and a second response field for receiving a second acknowledging response output from a control system having received data.
摘要:
A double-bearing reel which is readily disassembled and reassembled. The double-bearing reel is provided with a spool rotatably supported between side plates, the spool being rotatably geared to take-up driving mechanisms. A level winder unit is provided for guiding and winding a fishing line onto the spool in parallel. The level winder unit includes a worm shaft rotatably geared to the take-up driving mechanisms of the spool, a guide tube embracing the worm shaft and having a slit, and a fishing line guide reciprocating along the slit of the guide tube as the worm shaft rotates. A removal preventive member is provided for preventing the level winder unit from slipping off in cooperation with the side plates when the level winder unit is detachably installed in the mating openings formed in the respective side plates.
摘要:
The present disclosure concerns a simple structure for a fly type fishing reel to prevent the occurrence of noise caused by axial backlash between a shaft and a spool. A spool is rotatably supported on a shaft through at least one bearing, and a peripheral groove is formed on a fore end portion of the shaft. A cap is fixed to a center of the spool with a screw. An engaging knob plate to detachably engage the spool with the shaft is provided between the cap and the spool. A concave portion is formed approximately at a center of the reverse side of the cap for accommodating the fore end portion of the shaft, and a floating absorption member is inserted into and fixed in the concave portion. The floating absorption member may be made of felt, a resilient laminated member of rubber on which a metallic plate and a synthetic resin plate are stacked, or a leaf spring.
摘要:
A drag mechanism for a fishing reel having a spool shaft supported at both the ends thereof. The drag mechanism employs rolling members as drag members so that the durability of the mechanism is enhanced, and the dragging function thereof is kept stable and good for a long time even under severe conditions under which sea water, sand or the like is likely to cling to the mechanism. One of drag member holders is secured to the spool of the reel so as to be rotated together with the spool. The other of the holders is secured to the spool shaft so as to be rotated together therewith. The tapered outside circumferential surface of one of the holders faces the tapered inside circumferential surface of the other of them. The rolling members are fitted in between the tapered surfaces. The drag mechanism can be used to drag the reverse rotation of the spool by frictional resistances to the rolling and sliding of the rolling members.
摘要:
A magnetic recording medium comprising a non-magnetic support having provided thereon a magnetic layer comprising a ferromagnetic powder and a binder material, wherein the magnetic layer contains at least a vinyl chloride copolymer binder having at least one polar group selected from --SO.sub.3 M and --COOM, wherein M represents a hydrogen atom, an alkali metal, or an ammonium ion, and at least one epoxy group per molecule in an amount of 1.times.10.sup.-4 to 1.times.10.sup.-2 per gram, and a fatty acid amide having from 12 to 26 atoms and present in an amount of from 0.05 to 2 wt % based on the amount of the ferromagnetic powder, and wherein the content of the polar group in the vinyl chloride copolymer binder is from about 1.times.10.sup.-7 to 1.times.10.sup.-3 equivalent per gram, and wherein the vinyl chloride copolymer binder has a weight average molecular weight of from 20,000 to 100,000 and wherein the magnetic layer further contains a polyurethane resin having a polar group.