| 摘要 |
<p>In a structure wherein a connecting shaft J on a blade side is detachably supported on an attaching groove formed on a wiper arm, secure fixation becomes possible while attaching and detaching operations are simplified. An attaching groove 3 formed on a wiper arm 1 has a dovetail groove shape having a groove entrance portion 3d with a groove width S, the connecting shaft J comprises a fixed shaft 8 fixed on a bracket 7 and a spacer 9 having a cylinder sliding portion 9b which is incorporated in the fixed shaft 8 so as to be slidable in the rotational direction of the shaft. A chamfered portion 9e is formed on the cylindrical sliding portion 9b, a small diameter portion having a diameter T which is the same as or smaller than the groove width S is formed, and based on making the cylindrical sliding portion 9b slide by operating a lever portion 9a, the relationship between the attaching groove 3 and connecting shaft J is changed in posture to the attaching and detaching postures where the small diameter portion is opposed to the groove entrance portion 3d and to the connected posture where the groove entrance portion 3d is blocked. <IMAGE></p> |
