JPH0463849U

JPH0463849U -

Info

Publication number: JPH0463849U
Application number: JP10643990U
Authority: JP
Priority date: 1990-10-09
Filing date: 1990-10-09
Publication date: 1992-05-29

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図ａは本
考案に係る動力伝達経路継断装置の一部を破断し
た平面図、第１図ｂは同装置の作動ギヤの平面図
、第２図は同装置の可動鉄心とトリガレバーの係
合部分の拡大斜視図、第３図は磁石装置の断面図
、第４図は同装置の分解斜視図、第５図及び第６
図は本考案の動力伝達経路継断装置の動作説明図
である。１……動力伝達経路継断装置、２……駆動ギヤ
、３……誘導ギヤ、４……トリガレバー、５……
作動ギヤ、７……カム溝、８……欠歯部、１０…
…停止用係合部、１１……起動用係合部、１２…
…カムピン、１４……ばね部材、２１……永久磁
石、２２……電磁石、４６……一方の挟持片（弾
性吸収部）、４８……復帰用係合部。 The drawings show an embodiment of the present invention, and FIG. 1a is a partially cutaway plan view of a power transmission path connecting device according to the present invention, FIG. 1b is a plan view of an operating gear of the device, and FIG. Figure 2 is an enlarged perspective view of the engaging portion of the movable iron core and trigger lever of the device, Figure 3 is a sectional view of the magnet device, Figure 4 is an exploded perspective view of the device, and Figures 5 and 6.
The figure is an explanatory diagram of the operation of the power transmission path switching device of the present invention. 1... Power transmission path switching device, 2... Drive gear, 3... Induction gear, 4... Trigger lever, 5...
Operating gear, 7...cam groove, 8...missing tooth portion, 10...
...Engagement part for stopping, 11...Engagement part for starting, 12...
...Cam pin, 14...Spring member, 21...Permanent magnet, 22...Electromagnet, 46...One clamping piece (elastic absorption part), 48...Returning engagement part.

Claims

[Scope of Claim for Utility Model Registration] A driving gear, an induction gear having a cam groove including a stopping engagement part and a starting engagement part, and a toothless part, and a cam pin that engages with the cam groove of the induction gear. When the cam pin engages with the stopping engagement part, the toothless part faces the drive gear, and when the cam pin disengages from the stopping engagement part, the cam pin is brought into contact with the starting engagement part. a trigger lever that rotates the induction gear in the positive direction to a position where it starts meshing with the drive gear; A power transmission path switching device comprising an operating gear that is rotatable over a range and rotates following the induction gear when the induction gear is rotationally driven by meshing with the drive gear. a permanent magnet that attracts and holds the cam pin in a predetermined position to maintain an engaged state between the cam pin and the stop engaging portion; and a spring member and an electromagnet that bias the trigger lever in a direction away from the permanent magnet. , the cam groove of the guide gear is provided with a return engagement portion that causes the trigger lever to return slightly excessively at a terminal portion where the cam pin transitions from the stop engagement portion to the next stop engagement portion; A power transmission path switching device characterized in that the trigger lever is provided with an elastic absorbing portion that absorbs an excessive return movement through elastic deformation.