| 摘要 |
An objective of the invention is to provide a work apparatus in which the maximum value of the force acting on a work object is unchanged even when the size of the object varies, the work apparatus not exerting force in excess of a prescribed value. The work apparatus is provided with a first member (1) and a second member (2), at least one of which is moveable, and is additionally provided with a work part (3) operated by movement of the first member (1) or the second member (2). Either the first member (1) or the second member (2) is furnished with a mobilization part (4) and a mobilized contact part (5), while the other is furnished with a contact receiving part (6). When the operating resistance of the work part (3) reaches a prescribed value, the mobilized contact part (5), having been mobilized in a direction different from the direction of movement prior to contact due to deformation of the mobilization part (4), comes into contact against the contact receiving part (6), and in this state of contact of the mobilized contact part (5) against the contact receiving part (6), force further applied to the moveable first member (1) or the second member (2) is not transmitted to the work part (3). |
| 主权项 |
1. A work apparatus provided with a first member and a second member, and additionally provided with a work part to which at least one of the members is movably provided, the first member or the second member moving due to an applied force, and the transmitting of a force causing the work part to operate and carry out prescribed work, wherein the work apparatus is characterized in that either the first member or the second member is furnished with a mobilization part and with a mobilized contact part adapted to be mobilized by deformation of the mobilization part, while the other member is furnished with a contact receiving part contacted by this mobilized contact part, the mobilized contact part being adapted to undergo relative motion with respect to the contact receiving part without moving closer to the contact receiving part, or to move in the same direction as the contact receiving part while maintaining a constant distance therefrom, until operating resistance arises in the work part; when operating resistance arises in the work part, in the case of moving relatively with respect to the contact receiving part, to be mobilized in a direction different from the direction of relative motion and move closer to the contact receiving part due to deformation of the mobilization part, or in the case of moving in the same direction as the contact receiving part while maintaining equal distance therefrom, to narrow the distance from the contact receiving part and move closer to the contact receiving part due to deformation of the mobilization part; and when the operating resistance of the work part reaches a prescribed value, to come into contact against the contact receiving part; and in this state of contact of the mobilized contact part against the contact receiving part, force further applied to the moveable first member or the second member after the mobilized contact part has come into contact against the contact receiving part is not transmitted to the work part, or when force is further applied to the moveable first member or the second member after the mobilized contact part has come into contact against the contact receiving part, the transmission ratio at which the applied force is transmitted to the work part is lower than the transmission ratio before the mobilized contact part has come into contact against the contact receiving part. |
