| 摘要 |
The system has a form of a movable and fixable structure node, equipped with hinges and/or pins. It consists of a head bush adapted to be fixed in an articulator, said head bush consisting of the dish (1), the lid (2), of the hub (3) with an internal through-orifice, of the ball pin (4), of the cylinder (5), of the plate (6), and of the control element (7). In case the fixation is required, the control element (7) contacts the plate (6) which pushes on the cylinder (5). Said cylinder (5) acts on the ball pin (4) and the force from the ball pin (4) is transferred further on the hub (3) to ensure its fixation against the dish (1). In a variant it can be completed with a counterpart having shape of the structure element (9) which contains the disk plate (109) on the opposite side of which two pairs of movable plates (104) are fixed and equipped with an internal longitudinally-shaped opening. The arrested screw (105) passes through the internal openings of the movable plates (104). In another variant it can be completed with a calibrating pillar which contains two disks (201, 201a) joined with the movable bottom element (203) and with the movable top element (203a) which are joined with a set of ball hinges (202, 202a, 206). |
| 主权项 |
1. A system to fix plaster models of teeth in articulators without making use of plaster, said system having a shape of a movable and fixable structure node equipped with hinges and/or pins, wherein said system comprises:
a head bush adapted to be fixed in an articulator, said head bush being composed of a dish, a lid, a hub with an internal-through orifice, a ball pin, a cylinder, a plate, a control element, and an orifice through which a smaller diameter part of the hub passes through, wherein the orifice is in the bottom of the dish, the orifice having such diameter that between the edge of the orifice and the smaller diameter part of the hub there is a first interstice, wherein the hub comprises a larger diameter part that has a larger diameter than the orifice to prevent the hub from passing through the orifice, wherein there is a second interstice between the larger diameter part of the hub and the wall of the dish (1), wherein the ball pin is located in the hub and is adapted to be attached to a plaster-model holder, the diameter of the ball pin being larger than the diameter of the bottom part of the through-orifice in the hub, wherein the cylinder is located in the hub above the ball pin, said cylinder over-topping the surface of the larger diameter part of the hub, wherein the movable plate is movable and controllable with the control element, wherein the plate is located in the lid, the lid being adapted to be joined firmly to the dish, and wherein when the fixation is required, the control element is able to contact the plate to thereby push the cylinder, wherein said cylinder is then capable of acting on the ball pin, wherein the force from the ball pin is capable of being transferred to the hub to thereby ensure fixation of the hub towards the dish. |
