| 摘要 |
The invention relates to a platform (1) for horizontal positioning of a computer or computer screen placed on a supporting arm. The platform (1) comprises a device (2), the first end (40) of which protrudes from a house (3). The opposite other end received in the house (3) has three arms (27, 28, 29) each connected with a screw (35). The screws are positioned in the house (3) with parallel axes and extend in the same direction as the first end (40). The arms (27-29) are positioned in a plane at right angles to the axis (25) of the device (2), whereby the other arm (28) is at right angles to the plane of the other two arms (27, 29) extending in the opposite direction away from the axis (25). The screws (35) are slidable, but unshiftable in their longitudinal direction, whereby nuts (39) on the screws (35) are rotatable around their axes but unslidable in their axial direction. By turning the nuts (39) the arms can be shifted in order that the direction of the axis (25) can be adjusted in relation to the house (3). |
