| 摘要 |
A multi-shape hole driver is disclosed. According to an embodiment, the multi-shape hole driver comprises a housing, a spring container, a plurality of elastic members, and a plurality of pins. The housing has an open first side and has a first inner space, which communicates with the outside via the open first side. The spring container has first and second surfaces, which face each other, and has a plurality of channels, which penetrate the first and second surfaces. The plurality of elastic members are arranged in the plurality of channels. The plurality of pins are arranged in the plurality of channels and are supported by the plurality of elastic members; parts of the plurality of pins, which comprise second sides thereof, are exposed to the outside of the second side of the spring container; and parts of the plurality of pins, which comprise first sides thereof, are exposed to the outside of the first surface of the spring container. The first inner space of the housing provides a space such that, when the first sides of the plurality of pins are forced against the surface of an object, the parts, which comprise the second sides of the plurality of pins, can move. The outer surface of the spring container is forced against the inner surface of the housing, which is adjacent to the first side of the housing, such that the spring container is fixed to the housing. Each of the plurality of channels comprises a plurality of different movement passages, which are successively formed from the first surface of the spring container towards the second surface of the spring container, and at least some of the plurality of movement passages have different sectional areas, thereby forming a first stepped portion. The second end of each of the plurality of elastic members is forced against or connected to the first stepped portion. Each of the plurality of pins comprises different regions, which are successively formed from the first surface of the spring container towards the second surface of the spring container, and at least some of the different regions have different sectional areas, thereby forming a second stepped portion. In this case, the first end of each of the plurality of elastic members can be forced against or connected to the second stepped portion such that, when the first side of at least some of the plurality of pins -hereinafter, referred to as contact pins - and the surface of the object contact each other, elastic forces are applied to the contact pins, respectively, according to the shape of the surface of the object and the contact force thereof, thereby forcing the first side of the contact pins against the surface of the object. |
