JPH0169955U

JPH0169955U -

Info

Publication number: JPH0169955U
Application number: JP1987163663U
Authority: JP
Priority date: 1987-10-28
Filing date: 1987-10-28
Publication date: 1989-05-10
Anticipated expiration: 2002-10-28
Also published as: JPH053804Y2

Description

[Brief explanation of the drawing]

第１Ａ図は第３図に示されるオートテンシヨナ
の基板の平面図、第１Ｂ図は第１Ａ図の線−
に沿つた断面図、第２図は第３図のオートテンシ
ヨナの断面図、第３図は本考案によるオートテン
シヨナの断面図、第４図は第３図の摩擦板担持ボ
ルトの拡大図、第５図は第３図のオートテンシヨ
ナを取りつけたベルト伝動装置を示す図、第６図
は第５図の部分拡大図、第７図は第６図の矢印
から見た側面図である。２２……アイドラ、２４……揺動軸、２４ａ…
…通過穴、２６……ブラケツト、２８……テンシ
ヨンスプリング、３２……基板、３６……ボルト
、３６ａ……ボルト通過穴、４０……追加の穴、
４１……溝、５０……底壁、５２，５４……摩擦
板、５６……穴、５８……フリクシヨンスプリン
グ。 FIG. 1A is a plan view of the autotensioner substrate shown in FIG. 3, and FIG. 1B is the line shown in FIG. 1A.
2 is a sectional view of the autotensioner shown in FIG. 3, FIG. 3 is a sectional view of the autotensioner according to the present invention, and FIG. 4 is an enlarged view of the friction plate supporting bolt shown in FIG. 3. , Fig. 5 is a diagram showing the belt transmission device with the autotensioner of Fig. 3 attached, Fig. 6 is a partially enlarged view of Fig. 5, and Fig. 7 is a side view seen from the arrow in Fig. 6. . 22... Idler, 24... Swing shaft, 24a...
...passing hole, 26...bracket, 28...tension spring, 32...board, 36...bolt, 36a...bolt passing hole, 40...additional hole,
41... Groove, 50... Bottom wall, 52, 54... Friction plate, 56... Hole, 58... Friction spring.

Claims

[Scope of utility model registration request]

It has an idler attached to a swingable bracket on the base plate and capable of applying tension to the belt by a tension spring,
A hole is provided in the bottom wall of the idler, and a friction plate slidably attached to a bolt freely passing through the hole is disposed opposite the bottom wall of the idler, and the bolt causes the friction plate to pass through the hole. The idler has a friction spring for pressing against the bottom wall surface of the idler, and the tip of the bolt engages and is fixed in a hole provided in the base plate, and the idler has a oscillating spring on the base plate. An additional hole is provided in alignment with the hole in the bottom wall of the idler when the idler is moved, and the bolt is removed and a tool is inserted through the hole in the bottom wall of the idler and into the additional hole. An autotensioner with a friction plate, wherein the idler can be temporarily fixed at a large swing position, and a groove is provided from the additional hole on the surface of the substrate or the surface of the idler facing the substrate.