Abstract: A portable power working machine includes a drive unit disposed in a motor housing connected to a proximal end of an operating arm. The drive unit rotates a cutting blade at a distal end of the operating arm. The motor housing has an inlet and an outlet for cooling air in front and rear sections, respectively. The drive unit includes an electric motor disposed near the front end of the motor housing, a cooling fan disposed near the rear end of the motor housing and connected to an output shaft of the electric motor, and a heat sink disposed between the cooling fan and the electric motor so as to extend from the electric motor. The cooling air drawn in through the inlet by the cooling fan is guided through a gap between the drive unit and an inner surface of the motor housing and is discharged through the outlet.

Abstract: An electric wire for automobile has a compressed conductor which is configured by compressing a conductor including a plurality of surrounding wires to surround the central wire. The wires are configured by combination of both wire made of stainless steel and wire made of copper or copper alloy.

Abstract: A cover of a simple construction is provided which can deal with a distance variation between battery posts. The cover 6 is made of a rubber material and has a narrow box-like configuration. A bottomed middle portion of the cover 6 forms a tubular portion 107 through which a braided wire 3 of a battery connection terminal 1 is to be passed, and the opposite ends thereof form post cover portions 108 for covering battery posts 2. Further, slits 9 are formed in side walls between the tubular portion 107 and the post cover portions 108, so that the post cover portions 108 can be bent upward. In this way, since the cover 6 can be elongated and contracted according to a distance between the battery posts 2, it can be easily mounted and the action of an undesired force on the cover 6 due to the vibration of batteries 5 can be effectively prevented.

Abstract: There is disclosed a snow-melting tile wiring unit which includes a main line (10) having two power supply cables (11), a main line connection plug (21) connected to one end of the main line (10), a main line receptacle connected to the other end of the main line (10), a predetermined number of main line branching molded portions (23) spaced on the main line (10) for connection between the main line (10) and branch lines (30) to be connected to snow-melting tiles (A), and branch line connection plugs (41) connected to the front end of the branch lines (30), wherein the branch line connection plugs (41) are connected to branch line receptacles (42) connected to the front end of leads (b) of the snow-melting tiles (A) each including a ceramic heater (B) deposited on the reverse face thereof, thereby electrically connecting the snow-melting tiles (A) to the main line (10).