Patent ID: 7635111
Filing Date: 2009-12-22
Classification: F16B

Abstract:
1. A suction cup device, comprising: a suction cup having a suction face and a rear face along a thicknesswise direction thereof; a center shaft provided at the center of said rear face of said suction cup and extending in a direction away from said rear face along the thicknesswise direction; an attaching base having a skirt portion configured to cover said rear face of said suction cup and an outer tubular portion projecting from the center of said skirt portion and having said center shaft accommodated therein; a rock lever coupled to an end portion of said center shaft against movement in an axial direction of said center shaft but for rotation in a circumferential direction of said center shaft between an initial position and a rocked position; a coil spring disposed around said center shaft on the inner side of said outer tubular portion and anchored at one end thereof by said outer tubular portion and at the other end thereof by said rock lever in such a manner as to bias said rock lever toward the initial position and bias said outer tubular portion and said rock lever in a direction away from each other along said center shaft; and a cam mechanism provided between said outer tubular portion and said rock lever and configured to move, in response to the rotation of said rock lever from the initial position to the rocked position, said suction cup from an initially attached state which is established by pressing, with said suction face opposed to an attaching object face, said center shaft against the attaching object face until said suction face is contacted over an overall area thereof with the attaching object face and an end portion of said skirt portion is contacted with an outer circumferential portion of said rear face or with a portion of the attaching object face on the outer side in a radial direction of said rear face to a finally attached state wherein said center shaft is displaced in a direction away from the attaching object face and then retain said rock lever at the rocked position against the biasing force of said coil spring.