JPH0365829U

JPH0365829U -

Info

Publication number: JPH0365829U
Application number: JP12597589U
Authority: JP
Priority date: 1989-10-27
Filing date: 1989-10-27
Publication date: 1991-06-26
Anticipated expiration: 2004-10-27
Also published as: JPH08502Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るエンジンのヘ
ツドカバーの防音装置の縦断面側面図、第２図は
他の実施例に係る防音装置を説明する図で、第２
図Ａはヘツドカバー取付ボルトとヘツドカバー取
付ナツトとの嵌合部分の縦断面側面図、第２図Ｂ
は防音装置の縦断面側面図であり、第３図は従来
技術に係る防音装置の一部縦断面側面図である。１……エンジン、２……シリンダヘツド、３…
…ヘツドカバー、４……防音手段、５……防音カ
バー、６……シリンダ、７……ヘツドカバー取付
用ネジ穴、８……３の上壁、９……ネジ固定手段
、１０……９の挿通孔、１１……ヘツドカバー取
付ボルト、１２……１１の脚ネジ部、１３……１
１の頭ネジ部、１４……ヘツドカバー取付ナツト
、１５……防音材、１６……５の上壁、１７……
貫通孔、１８……１５の下縁部、１９……３の下
縁部、２０……５の下縁部。 FIG. 1 is a longitudinal cross-sectional side view of a soundproofing device for an engine head cover according to one embodiment of the present invention, and FIG. 2 is a diagram illustrating a soundproofing device according to another embodiment.
Figure A is a vertical cross-sectional side view of the fitting part between the head cover mounting bolt and head cover mounting nut, and Figure 2B
is a vertical cross-sectional side view of a soundproofing device, and FIG. 3 is a partial vertical crosssectional side view of a soundproofing device according to the prior art. 1...Engine, 2...Cylinder head, 3...
...Head cover, 4...Soundproofing means, 5...Soundproofing cover, 6...Cylinder, 7...Screw hole for mounting head cover, 8...Top wall of 3, 9...Screw fixing means, 10...Insertion of 9 Hole, 11...Head cover mounting bolt, 12...11 leg screw part, 13...1
Head screw portion of 1, 14...head cover mounting nut, 15...soundproofing material, 16...top wall of 5, 17...
Through hole, lower edge of 18...15, lower edge of 19...3, lower edge of 20...5.

Claims

[Claims for Utility Model Registration] 1. A head cover 3, a soundproofing means 4, and a soundproofing cover 5 are provided in three layers in order from the bottom above the cylinder head 2 of the engine 1, and the head cover is attached to at least one of the cylinder head 2 and the cylinder. A screw hole 7 is drilled, and an insertion hole 10 for the screw fixing means 9 is formed in the upper wall 8 of the head cover 3.
are concentrically drilled with the head cover mounting screw holes 7, and the leg threads 12 of the head cover mounting bolts 11 constituting the screw fixing means 9 are fitted and fixed into the head cover mounting screw holes 7, and the head cover mounting bolts 1 are fitted and fixed.
Attach the head cover mounting nut 14 to the head screw part 13 of 1.
screw into the head cover mounting nut 14.
In a soundproofing device for an engine head cover configured to press and fix the head cover 3 to the cylinder head 2 side, the soundproofing means 4 includes an elastically deformable soundproofing material 1.
5 is filled between the head cover 3 and the soundproof cover 5, and the through holes 17 of the screw fixing means 9 are arranged concentrically with the insertion holes 10 of the screw fixing means 9 and the head cover mounting screw holes 7 in the upper wall 16 of the soundproof cover 5. The head cover mounting nuts 14 are screwed into the head threads 13 of the head cover mounting bolts 11 from the upper side of the soundproof cover 5, and the thrust of the head cover mounting nuts 14 removes the soundproof cover 5, the elastically deformable soundproofing material 15, and the head cover. 3. A soundproofing device for an engine head cover, characterized in that the soundproofing device is configured to press the head cover 3 toward the cylinder head 2 side. 2 Lower edge 18 of the elastically deformable soundproofing material 15
2. The soundproofing device for an engine head cover according to claim 1, wherein the soundproofing device is located at a position higher than the lower end edge 19 of the head cover 3 and lower than the lower end edge 20 of the soundproof cover 5.