| 摘要 |
<p>A tool (70) for fitting a window glass guiding and sealing strip (12) into a channel-shaped window frame (8) comprises a member (72) supporting two pairs of rotatable rollers (82, 84; 100, 102). One roller (84) of the first pair (82, 84) is rotatably driven by an air motor (86). The other pair of rollers (100, 102) is mounted on a cradle (96, 98) which is pivotally supported on a plate (94) carried by piston rods (90, 92) of a pneumatic cylinder (88). The strip (12) is first manually inserted into the channel of the frame (8). The tool is then fitted into position so that the rollers (82, 84) of one pair bear against the strip (12), while the rollers of the other pair (100, 102) bear against the outside of the base of the channel of the window frame (8). The air motor (86) is then energised so that the correspondingly driven roller (84) drives the tool along the length of the strip, guided by the fitter using a handle (114). As the tool moves, the fitter adjusts the pressure within the pneumatic cylinder (88) so as to ensure that sufficient pressure is inserted by the rollers (100, 102) to press the strip (12) fully into the channel of the frame (8). <IMAGE></p> |
