LID FASTENING STRUCTURE OF PAINTING TOOL HOUSING BOX

To provide a lid fastening structure of a painting tool housing box that allows smooth switching with good operability between the condition where the lid can be opened and the condition where the lid cannot be opened while the lid closes the opening of the entire box.SOLUTION: A fastening member 4 includes an upper side sliding part 14a, which slides along an upper groove 11a, 12a of a main body side fastening part 6 and a sub main side fastening part 7 and a recessed part 13 of a lid side fastening part 8. The fastening member 4 also includes a bottom side sliding part 14b, which slides along the bottom side groove of the main side fastening part 6 and the sub main body side fastening part 7. When the fastening member 4 moves to the side of the main body side fastening part 6, the fastening member 4 engages only with the main body side fastening part 6, and when the fastening member 4 moves to the side of the sub main side fastening part 7, the upper side sliding part 14a engages with the upper side groove 11a, the recessed part 13, and the upper side groove 12a simultaneously. The upper side sliding part 14a and the bottom side sliding part 14b have protruding parts 15 positioned apart from each other in their longitudinal direction. These protruding parts 15 make point contacts with a side face 16a inside the upper side groove 11a, 12a, and inside the bottom side groove.SELECTED DRAWING: Figure 2 【課題】蓋が箱本体の開口を閉じている際に、蓋を開くことができる状態と開くことができない状態とを操作感良く円滑に切り替えることができる絵具収容箱の蓋締結構造を提供することである。【解決手段】締結部材４の上側摺動部１４ａが、主本体側締結部６及び副本体側締結部７の上側溝１１ａ、１２ａ及び蓋側締結部８の凹部１３に沿って摺動し、締結部材４の下側摺動部１４ｂが、主本体側締結部６及び副本体側締結部７の下側溝に沿って摺動する。締結部材４が主本体側締結部６側に移動すると、締結部材４は主本体側締結部６のみに係合し、締結部材４が副本体側締結部７側に移動すると、上側摺動部１４ａが上側溝１１ａ、凹部１３、上側溝１２ａと同時に係合する。上側摺動部１４ａ及び下側摺動部１４ｂにおける長手方向の離間した位置には隆起部１５が設けられている。これらの隆起部１５が上側溝１１ａ、１２ａ内及び下側溝内の側面１６ａに点接触する。【選択図】図２