CIRCULAR LOUVER DEVICE FOR ELECTRIC APPARATUS HOUSING BOX

• Main Authors: SUZUKI HIROMASA, SUZUKI KEIZO
• Format: Patent
• Language: English; Japanese
• Published: 17.11.2014
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

PROBLEM TO BE SOLVED: To provide a circular louver device for an electric apparatus housing box in which fitting angle can be easily aligned, and the fitting angle is not deviated when a fastening screw is screwed after fitting.SOLUTION: A circular louver device for an electric apparatus housing box comprises: a cylinder part 7 fitted with a ventilating opening 6 formed on a housing 1 of an electric apparatus housing box; a louver body 5 having blades covering the opening 6; and a fastening screw screwed with a screw part 8 formed on an outer periphery of the cylinder part 7 and fixing the louver body to the housing. An outer notch part 11 obtained by notching an outer periphery 10 of the cylinder part 7 in a forward and backward direction is provided as means for defining position for fitting the cylinder part 7 with the opening 6, and preventing rotary movement from the fitting position in fastening the fastening screw 9. 【課題】嵌め込み角度の位置合わせが容易に行え、かつ、嵌め込み後に締付ネジを螺合させる際に嵌め込み角度のズレが生じない電気機器収納箱用円形ルーバ装置を提供すること。【解決手段】電気機器収納用箱の筐体１に形成された換気用の開口部６に嵌め込まれる円筒部７と、前記開口部６を被覆する羽板を備えたルーバ本体５と、前記円筒部７の外周面に形成されたネジ部８と螺合して、前記ルーバ本体を前記筐体に固定する締付ネジから構成される電気機器収納箱用円形ルーバ装置であって、前記円筒部７の前記開口部６への嵌め込み位置を規定するとともに、締付ネジ９の締結時に前記嵌め込み位置から回転移動することを防止する手段として、前記円筒部７の外周面１０を前後方向に亘って切り欠いた外側切欠き部１１を有する。【選択図】図１