| 摘要 |
<p>The brush, especially tooth brush consists of head (1) body, which is advantageously connected in takable-apart way with handpiece (2) whereby connection of head (1) and handpiece (2) is performed by means of concave prolongation (8) of head (1) body and stem (3) created at the end of handpiece (2). This connection enables straight movement of head (1) body and handpiece (2) in direction of their longitudinal axis (7). In order to specify the movement in direction of brush longitudinal axis (7) in wall (20) of concave prolongation (8) of head (1) body oblique slot (5) is created and on stem (3) of handpiece (2) is created guiding projection (4), placed in oblique slot (5), which makes selected angle with brush longitudinal axis (7). Longitudinal dimension of oblique slot (5) and its selected angle to brush longitudinal axis (7) is determined also with extent of mutual movement of head (1) to handpiece (2) in direction of arrow (11), i.e. alternately to the left and to the right side at simultaneous reversing movement of brush handpiece (2) in direction of its longitudinal axis (7). Oblique slot (5) is terminated before external edge (15) of concave prolongation (8) of head (1) body.</p> |
