JPS62185958U

JPS62185958U -

Info

Publication number: JPS62185958U
Application number: JP7567786U
Authority: JP
Priority date: 1986-05-20
Filing date: 1986-05-20
Publication date: 1987-11-26

Description

[Brief explanation of the drawing]

第１図は、本考案の第１の実施例に係るベルト
張り装置の縦断面図、第２図は、第１図のベルト
張り装置のエンジンにおける取り付け位置を説明
するためのエンジンの正面図、第３図は、第１図
からアーム取り付け部材とアームとテンシヨナプ
ーリとだけを取り出してそれらを第１図の矢印Ｚ
方向から見た正面図、第４図は、第３図において
矢印Ｗ方向から見たアーム取り付け部材の側面図
、第５図は、第１図のベルト張り装置の第１のブ
ツシユの斜視図、第６図は、本考案の第２の実施
例に係るベルト張り装置に使用されている第１の
ブツシユの斜視図、第７図は、従来のベルト張り
装置の縦断面図である。２…アーム、３…プーリ、４…コイルばね、１
０…ベルト張り装置、１１，１２…（支持軸）、
１１…取り付けボルト、１２…スリーブ、１３…
第１のブツシユ（ブツシユ）、１４…アーム取り
付け部材、５５…タイミングベルト、７２…スリ
ツト。 FIG. 1 is a longitudinal sectional view of a belt tensioning device according to a first embodiment of the present invention, and FIG. 2 is a front view of an engine for explaining the mounting position of the belt tensioning device of FIG. 1 in the engine. In Figure 3, only the arm attachment member, arm, and tensioner pulley are taken out from Figure 1, and they are moved along the arrow Z in Figure 1.
4 is a side view of the arm attachment member seen from the direction of arrow W in FIG. 3; FIG. 5 is a perspective view of the first bushing of the belt tensioning device of FIG. 1; FIG. 6 is a perspective view of the first bush used in the belt tensioning device according to the second embodiment of the present invention, and FIG. 7 is a longitudinal sectional view of the conventional belt tensioning device. 2...Arm, 3...Pulley, 4...Coil spring, 1
0... Belt tensioning device, 11, 12... (support shaft),
11...Mounting bolt, 12...Sleeve, 13...
1st bush (button), 14... arm attachment member, 55... timing belt, 72... slit.

Claims

[Scope of Claim for Utility Model Registration] A tensioner pulley that contacts the engine timing belt, an arm that rotatably supports the tensioner pulley, a cylindrical arm attachment member that attaches the arm, and a a support shaft located at the center and fixed to the engine body and rotatably supporting the arm attachment member; and a support shaft that applies rotational force to the arm attachment member and thereby presses the tensioner pulley against the timing belt. is interposed between a coil spring applying tension to the support shaft and the arm attachment member, and absorbs rotational vibration of the arm attachment member by the frictional force between the coil spring and the arm attachment member. 1. A belt tensioning device comprising a bush made of resin, wherein the bush is provided with a large number of slits extending in the longitudinal direction.