| 摘要 |
The present invention is to provide a simple linear stopper which is capable of stopping the movement of an object in a reliable manner with a simple structure. The present invention is characterized by comprising: a stopper body has an inclined surface formed thereon, with a wedge-like space being constructed between the inclined surface and a surface of the guide member with a gap decreasing gradually toward one side of an extending direction of the guide member; rolling elements that are arranged in said wedge-like space so as to be rollable therein; and rolling element pressing means that presses the rolling elements in a direction to bite into the wedge-like space, so that the rolling elements are forced into pressure contact with the surface of the guide member and the inclined surface of the stopper body; wherein a one-way stopper mechanism is provided which restricts the relative movement of the stopper body with respect to said guide member toward a side at which the gap in the wedge-like space is large, due to a biting action caused by the rolling contact of the rolling elements in said wedge-like space, and allows the relative movement of the stopper body with respect to said guide member toward a side at which the gap in the wedge-like space is small, due to the sliding contact of the rolling elements in said wedge-like space. |
