| 摘要 |
The present invention relates to a battery case including a case body receiving a battery and a cylindrical supporting frame (7) supporting the case body to be taken out to a front side. The battery case includes a guide device having lengthwise convex units (81) and concave units (82) wherein the convex unit is inserted on outer surfaces of each transverse side of the case body and inner surfaces of each transverse side of the supporting frame, respectively and guiding the forward and backward movement of the case body using the convex units and the concave units. The battery case is capable of smoothly taking the case body in and out from the cylindrical frame and reducing a shake of the case body. Protrusions (83, 84) extended in a longitudinal direction and coming into line-contact with a top surface and lateral surfaces of either the convex unit (81) or the concave unit (82) are formed in a top surface and lateral surfaces of the remaining one between the convex unit (81) and the concave unit (82). |
