| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problems that respective batteries of D, C and AA batteries are needed for respective electric instruments at present, it is troublesome to prepare the batteries, it is troublesome to lay or pull a cord when attaching and detaching the batteries to/from a radio cassette recorder or the like, and the D and C batteries are heavy and produce a large amount of waste. <P>SOLUTION: A cylinder whose inner diameter is such that a AA battery can be put in and outer diameter is a size of D and C batteries is used so as to substitute D and C batteries using a AA battery. Since a length is insufficient for a D battery, an electrode for the insufficient length of D and AA batteries is attached. The electrode of a C battery is 0 cm. This invention is shorter than a battery by about 1.5 cm so as to eliminate the need of laying a cord of a radio cassette recorder or the like. Also, a positive side cross section is slightly recessed to the inner side so that a finger can be hooked. When a AA rechargeable dry battery is used, a large amount of resources are saved and a large amount of dry battery waste are reduced. <P>COPYRIGHT: (C)2013,JPO&INPIT |
