JPH0442695U

JPH0442695U -

Info

Publication number: JPH0442695U
Application number: JP8540390U
Authority: JP
Priority date: 1990-08-11
Filing date: 1990-08-11
Publication date: 1992-04-10

Description

[Brief explanation of the drawing]

第１図はこの考案の実施例における部分構成の
立体分解図、第２図はこの考案の実施例における
組立完成後の断面図、第３図は従来のドラムヘツ
ド固着装置の断面図である。１０……ドラム胴体、１１……ドラム胴体端縁
、１２……ドラム胴体周壁の螺着座、１３……締
めねじ、２０……ヘツドカラー、２１……ヘツド
カラーの内側リム部、２２……ヘツドカラーの下
側リム部、２３……ヘツドカラーのウエブ部、２
４……ヘツドカラーの定着座、２５……定着座に
穿設された挿着孔、３０……カウンターフープ、
３２……ドラムヘツド、４０……係着手段、４１
……係着手段の通孔、４２……係着手段の嵌挿周
壁。 FIG. 1 is an exploded view of a partial structure of an embodiment of this invention, FIG. 2 is a sectional view of the embodiment of this invention after assembly is completed, and FIG. 3 is a sectional view of a conventional drum head fixing device. DESCRIPTION OF SYMBOLS 10...Drum body, 11...Drum body edge, 12...Screw seating on drum body peripheral wall, 13...Tightening screw, 20...Head collar, 21...Inner rim of head collar, 22...Below head collar Side rim part, 23...Head collar web part, 2
4...Head collar fixing seat, 25...Insertion hole drilled in the fixing seat, 30...Counter hoop,
32... Drum head, 40... Attachment means, 41
...Through hole of the fastening means, 42...Insert peripheral wall of the fastening means.

Claims

[Claims for Utility Model Registration] (1) The peripheral edge of the drum head is placed on the upper surface of the counter hoop that is in contact with the edge of the drum body, and above that, the rim is extended from both ends of the central web to create a cross-section. A head collar formed in a Z-shape is provided, the central web portion of the head collar is widened,
Further, a plurality of fixing seats each having an insertion hole bored in the center thereof are formed in the web portion, and the tightening screws inserted through the insertion holes are screwed into respective screw seats provided on the peripheral wall of the drum body. A drum head fixing device which tightly clamps the drum head without bringing the head collar and counter hoop into direct contact with each other. (2) An engaging means having a plurality of through holes formed on the top end surface of the head collar and the counter hoop, corresponding to the insertion holes of the head collar fixing seat, and a downward fitting peripheral wall formed on the outer periphery. 2. The drum head fixing device according to claim 1, further comprising a drum head fixing device.