| 摘要 |
An improved structure art design knife comprised of a lower cover, a front upper cover, a rear upper cover, a blade mount, a blade, a release button, and a press button. The blade mount for the blade is contained in the blade mount channel of the lower cover, with a guide slot and a number of stepped engagement notches also disposed on the lower cover. A semicircular hole is formed at the other end of the lower cover, with a tab having a hook slot situated nearby. Formed in the front upper cover that fits onto the front end of the lower cover is an elongated hole having inserted within a retention button and a retention block, and the inner side of the retention block is tapered. Formed at the back end of the rear upper cover is another semicircular hole that corresponds to the semicircular hole of the lower cover. Two insertion nocks are formed along the center of the back side of blade. By utilizing these components when the present invention is utilized for cutting, it is only necessary to push the retention button forward to check the leftward and rightward movement of the blade and pushing the release button to the right causes the release block of the release button to also move rightward against the retaining element of the blade mount, releasing the retaining element from the insertion nocks of the blade and allowing the easy replacement of the blade.
|
