JPH0314352U

JPH0314352U -

Info

Publication number: JPH0314352U
Application number: JP7589989U
Authority: JP
Priority date: 1989-06-27
Filing date: 1989-06-27
Publication date: 1991-02-13

Description

[Brief explanation of the drawing]

第１図ａ，ｂは本考案の一実施例としてのイニ
シヤルセツト用偏心プーリ付きオートテンシヨナ
を示すもので、第１図ａはその縦断面図、第１図
ｂはその正面図であり、第２図ａ〜ｃは本考案の
案出過程で提案されたイニシヤルセツト用偏心プ
ーリ付きオートテンシヨナを示すもので、第２図
ａはその縦断面図、第２図ｂはその正面図、第２
図ｃはその溶部横断面図［第２図ａのｃ−ｃ
矢視断面図］である。１…支台、１ａ…長穴、２…ベルト、２ａ…治
具挿入穴、２ｂ…屈曲部、２ｃ…メインプレート
部、２ｄ…サブプレート部、２ｅ…穴、３…オー
トテンシヨナ固定軸、３ａ…軸心穴、３ｂ…外周
面、４…取付ナツト、５…イニシヤライズ用係合
部材としてのピン、６…テンシヨン用プーリ本体
、７…ボールベアリング、７ａ…アウタレース、
７ｂ…インナレース（偏心カム）、７ｃ…ボール
、８ａ，８ｂ…ピン、９…粘性体、１０…ブツシ
ユ、１１…スプリング、１１ａ…スプリングの一
端、１１ｂ…スプリングの他端、１２…ベルト、
１３…金具、１３ａ…係止溝、１４…ピン、１５
…治具、１６…取付ボルト、１７…カバー。 FIGS. 1a and 1b show an autotensioner with an eccentric pulley for initial setting as an embodiment of the present invention. FIG. 1a is a longitudinal cross-sectional view thereof, FIG. 1b is a front view thereof, and Figures 2a to 2c show an autotensioner with an eccentric pulley for initial setting that was proposed in the process of devising the present invention. Figure 2a is a longitudinal sectional view, Figure 2b is a front view, and
Figure c is a cross-sectional view of the welded part [c-c in Figure 2 a]
sectional view]. 1... Abutment, 1a... Elongated hole, 2... Belt, 2a... Jig insertion hole, 2b... Bent part, 2c... Main plate part, 2d... Sub plate part, 2e... Hole, 3... Auto tensioner fixing shaft, 3a...Axis hole, 3b...Outer peripheral surface, 4...Mounting nut, 5...Pin as an engagement member for initialization, 6...Tension pulley body, 7...Ball bearing, 7a...Outer race,
7b...inner race (eccentric cam), 7c...ball, 8a, 8b...pin, 9...viscous body, 10...button, 11...spring, 11a...one end of spring, 11b...other end of spring, 12...belt,
13...Metal fitting, 13a...Latching groove, 14...Pin, 15
...Jig, 16...Mounting bolt, 17...Cover.

Claims

[Scope of utility model registration request]

An autotensioner that applies a predetermined tension to a belt includes an autotensioner fixed shaft, a pulley body pivotally mounted eccentrically with respect to the fixed shaft, and an eccentric direction of the pulley body with respect to the fixed shaft such that the direction of eccentricity of the pulley body with respect to the fixed shaft is constant. a spring that elastically biases the
a bracket for fixing the fixed shaft to a support;
an initializing engagement member provided between the abutment side and the fixed shaft side; a mounting nut integrally attached to the bracket in alignment with the axial center hole of the fixed shaft; and a mounting nut provided on the abutment. An auto with an eccentric pulley for initial setting, characterized in that it has a fixing elongated hole, and a mounting bolt that passes through the axis hole and the elongated hole and is screwed into the mounting nut. Tensiona.