JPH01171952U

JPH01171952U -

Info

Publication number: JPH01171952U
Application number: JP16122988U
Authority: JP
Priority date: 1988-01-13
Filing date: 1988-12-14
Publication date: 1989-12-06

Description

[Brief explanation of the drawing]

第１図は本考案によるオートテンシヨナの第一
実施例１００をプーリの軸線方向に切断した図で
ある。第２図は第１図に示したオートテンシヨナ
を、矢印Ａの方向から見て、更にオートテンシヨ
ナの一部を除去して環状ブラケツト２０がよく見
えるようにした図である。第３図は本考案による
オートテンシヨナの第二実施例２００をプーリの
軸線方向に切断した図である。第４図は第３図に
示すオートテンシヨナのアーム部２２０を上方か
ら見た図である。第５図は本考案によるオートテ
ンシヨナの第三実施例３００をプーリの軸線方向
に切断した図である。第６図は第５図に示すオー
トテンシヨナのアーム部３２０を上方から見た図
である。第７図は本考案によるオートテンシヨナ
の第四実施例４００をプーリの軸線方向に切断し
た図である。第８図は第７図に示すオートテンシ
ヨナのアーム部４２０を上方から見た図である。
第９図は本考案によるオートテンシヨナの第五実
施例５００をプーリの軸線方向に切断した図であ
る。第１０図は本考案によるオートテンシヨナの
第六実施例６００をプーリの軸線方向に切断した
図である。主要部分の符号の説明、１，２０１，３０１，
４０１，５０１，６０１……アウタスリーブ、２
，２０２，３０２，４０２，５０２，６０２……
基軸部、１６，２１６，３１６，４１６，５１６
，６１６……プーリ、１９，２１９，３１９，４
１９，５１９，６１９……基台、２０……環状ブ
ラケツト、２２０，３２０，４２０，５２０，６
２０……アーム部、２１……小ボルト、２２１，
３２１，４２１，５２１，６２１……ピン。 FIG. 1 is a view of a first embodiment 100 of an autotensioner according to the present invention, cut in the axial direction of the pulley. FIG. 2 is a view of the autotensioner shown in FIG. 1, viewed from the direction of arrow A, with a portion of the autotensioner removed so that the annular bracket 20 can be clearly seen. FIG. 3 is a view of a second embodiment 200 of the autotensioner according to the present invention, cut in the axial direction of the pulley. FIG. 4 is a view of the arm portion 220 of the autotensioner shown in FIG. 3 viewed from above. FIG. 5 is a view of a third embodiment 300 of the autotensioner according to the present invention, cut in the axial direction of the pulley. FIG. 6 is a view of the arm portion 320 of the autotensioner shown in FIG. 5, viewed from above. FIG. 7 is a view of a fourth embodiment 400 of the autotensioner according to the present invention, cut in the axial direction of the pulley. FIG. 8 is a view of the arm portion 420 of the autotensioner shown in FIG. 7, viewed from above.
FIG. 9 is a view of a fifth embodiment 500 of the autotensioner according to the present invention, cut in the axial direction of the pulley. FIG. 10 is a view of a sixth embodiment 600 of an autotensioner according to the present invention, cut in the axial direction of the pulley. Explanation of symbols of main parts, 1,201,301,
401,501,601...Outer sleeve, 2
,202,302,402,502,602...
Base part, 16, 216, 316, 416, 516
,616...Pulley, 19,219,319,4
19,519,619...Base, 20...Annular bracket, 220,320,420,520,6
20...Arm part, 21...Small bolt, 221,
321, 421, 521, 621...pin.

Claims

[Claims for Utility Model Registration] 1. A fixed part that is fixed to a base body, a displaceable part that is displaced with respect to the fixed part, an elastic means that elastically connects the displaceable part and the base body, and an upper part of the displaceable part. an autotensioner that is provided between the base body or the fixed part and the displacement part, and is provided between the base body or the fixed part and the displacement part, and the displacement part is arranged with respect to the fixed part. An autotensioner characterized in that the autotensioner is provided with a movement limiting means for moving by a predetermined amount. 2. The movement restricting means includes a convex portion provided on one of the base body and the displacement portion, and a concave portion provided on the other, and the concave portion is configured such that the convex portion is inserted into the concave portion. 2. The autotensioner according to claim 1, wherein a space is provided within the recess so that the convex portion can move by the predetermined amount along with the displacement of the displacement portion. 3. The movement restricting means includes a convex portion provided on one of the fixed portion and the displacement portion, and a recessed portion provided on the other, and the convex portion is inserted into the recessed portion. 2. The autotensioner according to claim 1, wherein a space is provided within the recess so that the convex portion can move by the predetermined amount along with the displacement of the displacement portion when the displacement portion is displaced. 4. The autotensioner according to claim 2 or 3, wherein the convex portion is a tip of a bolt. 5. The autotensioner according to claim 2 or 3, wherein the convex portion is an implanted pin. 6. The autotensioner according to claim 2, wherein the recess is an arcuate groove. 7. The autotensioner according to any one of claims 2 to 5, wherein the recess is an elongated hole on an arc. 8. The autotensioner according to claim 2, wherein the recess is a cutout. 9. The movement limiting means includes a contact portion provided on the displacement portion and a contact portion provided on the base body, and the contact portion moves together with the displacement of the displacement portion. 2. The autotensioner according to claim 1, wherein the autotensioner is configured to prevent further movement when the corresponding contact portion abuts. 10. The autotensioner according to claim 9, wherein two abutted portions are provided. 11 The movement restricting means includes an abutting part provided on the displacing part and an abutting part provided on the fixed part, and the abutting part moves with the displacement of the displacing part. 2. The autotensioner according to claim 1, wherein the autotensioner is configured to prevent further movement when the corresponding abutting portion abuts. 12. The autotensioner according to claim 11, wherein two abutted portions are provided.