| 摘要 |
<p>A replaceable blade knife (1) comprises two elongate handle portions (3, 4) and a blade carrier (5) assembled together; the blade (6) protruding, or being arranged to protrude, from a front end (8) of the handle (2), between respective front ends (9, 10) of the two handle portions (3, 4). The upper handle portion (3) has a thumb-nail-sized aperture (26) through a rear end part thereof. When the knife (1) is assembled, the two handle portions (3, 4) are slid relatively longitudinally of one another, the upper handle portion (3) moving forwardly of the lower handle portion (4), until a latch part (31) near the rear end of the lower handle portion (4) clicks into latching engagement with the front edge (36) of the aperture (26) in the upper handle portion (3). The upper handle portion (3) is formed near its front end (9) with two downwardly projecting flank portions (14, 15), each said flank portion having an integral, forewardly projecting piece (16, 17) at the bottom of the flank portion. The front (10) of the lower handle portion (4) is formed with upwardly projecting flank portions (20, 21), each said flank portion having an integral, rearwardly projecting piece (22, 23) at the top of the flank portion, to overlie and hence interlock with a forwardly projecting piece (16, 17) at the bottom of the corresponding flank portion (14, 15) of the upper handle portion (3). At the rear edge of the aperture (26), the upper handle portion (3) is formed, at the bottom thereof, with a forwardly directed projection (27) which engages in a recess (28) at a rear wall (29) of the lower handle portion (4) to interlock the two handle portions (3, 4) together at the rear end of the handle (2).</p> |
