| 主权项 |
1. A blade replaceable hacksaw comprising:
a spine having a first end and a second end, a handle connected to the spine and a tension adjustor connected to the first end of the spine; a first blade securing portion connected to a rear portion of the second end of the spine; a positioning block having a first end thereof pivotably connected to a front portion of the second end of the spine by a pivot, a second end of the positioning block having a second blade securing portion formed thereto, a protrusion extending from a rear wall of the first end of the positioning block, and a stop connected to the second end of the spine and located at a rear end of the positioning block, the stop having an inclined face and a top face, when the positioning block is pivoted upward and supported on the inclined face of the stop, two ends of a first blade are respectively connected to the first blade securing portion and the tension adjustor, when the positioning block is pivoted downward and the protrusion on the positioning block contacts the stop face of the stop, two ends of a second blade are respectively connected to the second blade securing portion and the tension adjustor. |
