< Topic >The installation of the strap for the frame being easy, the strap installation structure which does not come off is offered.SolutionsThe plane view doing upper part frame 10, replacing to bottom frame 20 in the field where the electric battery is laid out, you install the cover 22 for the electric battery. In upper part frame projection component 80 of the form which extends to the 4th internal space which is put with 10 and the cover 22 for the electric battery according to the direction of height stand facilities is done. In order in the rim wall of three-dimensional side inside 4th, for the side which this touches with bottom frame 20 aperture, the channel 81,82 is formed. Strap 90 in order for the middle to wind in projection component 80, is looped, in order the said the string of both sides of the part where it is looped the Interpolation to do the channel 81,82, is installed. Cover 22 for the electric battery has the guide 221 of the form which extends aforementioned height direction according to the direction which crosses. Heavy-gage part 230 of bottom frame 20 has the channel 232 of the form which extends height direction according to the direction which crosses. Cover 22 for the electric battery is installed in the frame guide by making with 221 and the channel engage 232.< Choice figure >Drawing 10【課題】筐体に対するストラップの取り付けが容易で外れないストラップ取り付け構造を提供する。【解決手段】上側筐体10を平面視して電池が配置される領域に下側筐体20に代えて電池用蓋22を装着する。上側筐体10と電池用蓋22とに挟まれる第4内部空間に高さの方向に沿って延びる形状の突起部材80を立設する。第4内部空間側の外周壁に、下側筐体20と当接する側が開口するように溝81,82を形成する。ストラップ90は、途中が突起部材80に巻くようにして折り返され、該折り返される部分の両側のひもが溝81,82を挿通するように装着される。電池用蓋22は、前記高さ方向と直交する方向に沿って延びる形状のガイド221を備える。下側筐体20の厚肉部230は高さ方向と直交する方向に沿って延びる形状の溝232を備える。ガイド221と溝232とを係合させることによって、電池用蓋22を筐体に装着する。【選択図】図10
