| 摘要 |
<p>PURPOSE:To perform the attachment and detachment of a blade automatically and easily not depending on manual work by providing a blade attaching and detaching means for mounting the new blade on a spindle and a nut attaching and detaching means. CONSTITUTION:A blade attaching and detaching means 5, which detaches an old blade that is mounted on a spindle and mounts a new blade into the spindle, and a nut attaching and detaching means 7, which attaches and detaches a nut for fixing the blade to the spindle, are provided. The nut attaching and detaching means 7 has a spindle pushing part 74 and a nut rotating part 73. In the blade attaching and detaching means 5, a ring-shaped blade holding part 53 is provided in the cup-shaped inner part of an operating part 52, and an old-blade attaching and removing means and a new-blade attaching and removing means are symmetrically provided. Furthermore, the nut attaching and detaching means 7 is assembled into the inside of the blade attaching and detaching means 5. The attachment and detachment of the blades is executed based on a blade replacing command. Thus, the attachment and detachment of the blade can be performed in a fully automatic manner.</p> |
