Punching apparatus having detachable handle device
A punching apparatus includes a base, a punching structure, a transmitting shaft and a handle member. The base is used for placing thereon an object to be punched. The punching structure is mounted over the base for digging into the object to create at least one hole. The transmitting shaft is coupled to the punching structure and rotated to actuate the punching structure to move between a punching position and a releasing position in response to first and second external forces, respectively. The handle member is attachable to and detachable from any of a first end and a second end of the transmitting shaft, and transmits the punching structure to move between the punching position and the releasing position in response to the first and the second external forces exerted thereon, respectively.
1 . A handle device for use in a punching apparatus, comprising:
an elongated link for coupling to a punching structure of said punching apparatus, said elongated link having first and second ends, the cross sections of said first and said second ends being substantially identical to each other in shape and size; and
a handle member for receiving an external force, said handle member having a third end, the cross section of said third end conforming to both of said cross sections of said first and said second ends in order that said handle member is engageable with said elongated link at any of said first and said second ends, thereby transmitting said elongated link to move in response to said external force so as to actuate said punching structure.
2 . The handle device according to claim 1 wherein said elongated link is prism-shaped.
3 . The handle device according to claim 2 wherein said elongated link is a hexagonal prism, and each of said first, said second and said third end cross sections is hexagon-shaped.
4 . The handle device according to claim 1 wherein said cross sections of said first and said second ends are solid, said cross section of said third end is hollow, and said third end is sleeved on either of said first and said second ends to engage said handle member with said elongated link in said operational mode.
5 . The handle device according to claim 1 wherein said cross sections of said first and said second ends are hollow, said cross section of said third end is solid, and said third end is sleeved by either of said first and said second ends to engage said handle member with said elongated link in said operational mode.