TH36460A - The frame of the hacksaw is a type of hacksaw, which can be replaced with a single saw blade - Google Patents

Abstract

DC60 (20/10/49) The invention involves a hacksaw frame which is a type of hacksaw with interchangeable saw blades. A single piece comprising a saw rod (6), on one side extending to the end of the saw rod is a pistol grip (3) and a separate guard rod (7), and on the other side extending to the The front end of the rod The saw is a split shank (9) where the end of the split shank is assembled with a mounting pin (14) for the receiving end. One of the two ends of the saw blade (2) and it is equipped with a saw blade tensioning device that is unique in that the tensioning device is equipped with a tensioning system in the saw blade (4). The tensioned saw blade consists of a lever tensioned by the connecting pin (18) to the connecting sleeve (8), which extends into the rear part of the guard splitter (7), the connecting pin (18). ), It forms an axis where the lever (5) turns around.The tensioning system in the saw blade (4) consists of a support for the saw blade (12), which accepts the other end of the saw blade ( 2) is held and assembled with an opening (12a) that allows the connecting bolt (18) to pass through.The threaded shank (15) on one side is permanently attached to the saw blade support. It is then connected to the lever (5) by the connecting bolt (17), which has been drilled into a smooth hole where the threaded rod where the thumbwheel (16) can be screwed into. Can pass through the other side The thumb wheel (16), as mentioned above, is attached to the drill bit (17). The invention involves the frame of the hacksaw, which is a type of interchangeable saw blade. A single piece comprising a saw rod (6), on one side extending to the end of the saw rod is a pistol grip (3) and a separate guard rod (7), and on the other side extending to the The front end of the rod The saw is a split shank (9) where the end of the split shank is assembled with a mounting pin (14) for the receiving end. One of the two ends of the saw blade (2) and it is equipped with a saw blade tensioning device that is unique in that the tensioning device is equipped with a tensioning system in the saw blade (4). The tensioned saw blade consists of a lever tensioned by the connecting pin (18) to the connecting sleeve (8), which extends into the rear part of the guard splitter (7), the connecting pin (18). ), It forms an axis where the lever (5) turns around.The tensioning system in the saw blade (4) consists of a support for the saw blade (12), which accepts the other end of the saw blade ( 2) is held and assembled with an opening (12a) that allows the connecting bolt (18) to pass through.The threaded shank (15) on one side is permanently attached to the saw blade support. It is then connected to the lever (5) by the connecting bolt (17), which has been drilled into a smooth hole where the threaded rod where the thumbwheel (16) can be screwed into. Can pass through the other side The thumb wheel (16) as mentioned above will lean against the perforated connecting pin (17).

Claims (2)

1. An attachment for a hacksaw type, a solid bend consisting of a curved saw rod (6), which on one side extends to the end of the curved saw rod is a pistol grip (3), and It is the escort arm (7), and on the other, extending to the front end of the arc saw is the arm (9), which is assembled at one end with a pivot (14) that accepts one end of the second end. The tip of the saw blade (2) is attached and assembled with a tensioning device. By the device to make the saw blade taut Combined with the tensioning system in the saw blade (4), which is unique in that Loud tensioning device It consists of a lever fixed by a hinge pin (18) with a hinge forged (8) extending from the rear end of the guard arm (7), where the hinge pin (18) is formed. It is the spindle of the lever (5) .The tensioning system in the saw blade (4) consists of the blade receiver (12), which accepts the other end of the saw blade (2) and is assembled with a slot (12a). This allows the hinge-style pin (18) to pass through the threaded rod (15), on one side, being permanently connected to the Saw blade receiver And on the other side It is secured in a hinge-to-lever (5) by a flattened hinge-style pin (17) that allows the thumbwheel (16) screwed onto it. That can pass through The thumb wheel (16) is supported on the latch. Hinge type punched holes (17) 2. The installation part according to claim 1 is characterized by that the bottom part of the pistol grip (3) is located between the end of the hinge-style prong and the lever (5). ) Has been made in morphology. For packing the saw blade tension adjustment system when the lever (5) is in the closed and self-locking position. 3. The installation section according to claim 1 is unique in that the slot (12a) has Chin-shaped morphology Pork is important In which the corners of the trapezoid are rounded. 4. Installation part according to claims 1 to 3, any one It is unique in that the flap-style latch (18) extends through the slit (12a), with the freedom of orientation in the direction significantly perpendicular to the axis. Lengthwise of the saw blade 5. Installation part according to Clause 1 to 4, any one It is unique in that the groove (5a) is provided in the lever (5) to accept the hole-punched hinge pin (17) in order to get the connection. In the form of hinges and threaded rods (15) 6. Installation part according to claims 1 to 4, any one It is unique in that the threaded rod (15) is composed of a smooth section (15a) to allow the hole-punched hinge pin (17) to slide better. 7. What is the mounting part according to claims 1 to 6? One It is unique in that the end of the forearm (9) consists of fixed lug (11) (retaining lug) over the anchor (14). 8. The installation part according to Clause 7 is unique in that the protrusion is fixed. (11) having an inclined side (11a) facing outward of the arc 9. installation part according to claims 1 to 7. It is unique in that the sheet metal (7c) with a rectangular cross-section is inserted into a curved piece (6), where the blade (7c) extends significantly to the tip of the arm. (9) At the level of the mounting pin (14) 1 0. Installation part according to claim 1 to 8. It is unique in that the curved part has an "I"-shaped cross-section 1. 1. The installation section according to claim 10 is unique in that the "I"-shaped cross-section is formed with a dedicated groove corresponding to the horizontal section extending through the plane. Through the middle of "I" shaped cross-section 1 2. Installation part according to Clause 8 to 11, any one It is unique in that the "I"-shaped cross section changes gradually (evolutive) and curves towards the saw blade.