JPS6389419U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案の一実施例を説明する図で、
同図ａは要部側断面図、ｂは脱落防止板の平面図
、第２図は、従来の首付ネジの脱落防止構造を説
明する要部側断面図である。 図において、１は外板、２は首付ネジ、３は脱
落防止ナツト、４は脱落防止板、１１はばか孔、
２１はネジ部、２２はネジ除去部、４１は孔、４
２は十字状切込み、をそれぞれ示す。 FIG. 1 is a diagram illustrating an embodiment of the present invention.
FIG. 2A is a side sectional view of the main part, FIG. 2B is a plan view of a drop-off prevention plate, and FIG. 2 is a side sectional view of the main part illustrating a conventional neck screw drop-off prevention structure. In the figure, 1 is the outer plate, 2 is the neck screw, 3 is the falling-off prevention nut, 4 is the falling-off prevention plate, 11 is the hole,
21 is a screw part, 22 is a screw removal part, 41 is a hole, 4
2 indicates a cross-shaped cut.

Claims (1)

【実用新案登録請求の範囲】 装置筐体に外板１を固定する首付ネジの脱落防
止構造であつて、 ネジの首下にネジ除去部２２を形成した首付ネ
ジ２に、合成樹脂からなる座金の孔４１の周囲に
十字状切込み４２を形成した脱落防止板４を、前
記首付ネジ２を外板１のばか孔１１に挿入後、前
記首付ネジ２のネジ除去部２２に弾性に抗し押し
込むようにしたことを特徴とする首付ネジの脱落
防止構造。[Scope of Claim for Utility Model Registration] A structure that prevents neck screws from falling off that fix an outer panel 1 to a device housing, wherein a washer made of synthetic resin is attached to a neck screw 2 that has a screw removal part 22 formed under the neck of the screw. After inserting the neck screw 2 into the blank hole 11 of the outer plate 1, the drop-off prevention plate 4 having a cross-shaped notch 42 formed around the hole 41 is pushed into the screw removal part 22 of the neck screw 2 against elasticity. A structure that prevents neck screws from falling off.