| 摘要 |
<p>Powder-actuated fastening tool consists of the shell (1) and the handle (7), where the guiding channel (9) is created and this channel is being used for inserting the band catridge (8) with hubs (8a) and this catridge is in a perpendicular direction related to the barrel axis. In the guiding channel (9), there are located the means (10) used for moving and the means preventing backward running for snap into the relives (8e), created on the longitudinal margins of the catridge (8). In a space of the catridge (8) input into the channel (9), there are created tow blocking mechanism in the opposite direction of each other, however they are located in the direction (x) closed to the catridge (8) moving, before means used for moving and before means (15) to prevent backward running and they are forcing into the cross-section of the guiding channel (9), and the orientation of sides is the same like the orientation of the longitudinal catridge (8) margins. The longitudinal dimension of the blocking mechanisms (13, 14). On the guiding end of the catridge (8), there are created guiding curves used to draw out the blocking mechanisms (13, 14) and these curves are created based on the elastic walls of the guiding channel (9) and they have the holding cams (13b, 14b) together with the blocking bossages (13a, 14b), located before the holding cams (13b, 14b), in the direction (x) related to the catridge motion, the contour of which is created by segment of a circle, in principle.</p> |
