A staple gun includes a housing, a striking member, a force-accumulating assembly, a driving mechanism and an adjusting mechanism. The housing includes a staple outlet. The strike member is disposed on the housing. The force-accumulating assembly is movably disposed on the housing and engaged with the striking member. The force-accumulating assembly includes two accumulating members. The driving mechanism includes a pressing lever which is rotatably disposed on the housing and an engaging portion. The adjusting mechanism is disposed on the housing and assembled with the force-accumulating assembly.

A staple gun includes a housing, a striking member, a force-accumulating assembly, a driving mechanism and an adjusting mechanism. The housing includes a staple outlet. The strike member is disposed on the housing. The force-accumulating assembly is movably disposed on the housing and engaged with the striking member. The force-accumulating assembly includes two accumulating members. The driving mechanism includes a pressing lever which is rotatably disposed on the housing and an engaging portion. The adjusting mechanism is disposed on the housing and assembled with the force-accumulating assembly.

A stake implanting tool is provided. The stake implanting tool includes an elongated body designed with angled aluminum. The elongated body has a lower end and an upper end. A handle is slidably disposed within a channel defined by the elongated body. A flat stake driver is operably connected to the handle. A slot is disposed on the elongated body. When the handle is in the resting position, a stake is placed within the slot. The stake is retained to the slot by a spring loaded pin. A rounded base disposed on a lower end of the elongated body supports the device on the land mat. An aperture is disposed on the rounded base. In operation, the handle is slid down the channel, the stake is ejected through the aperture into the ground. A stopping guard prevents the stake from being implanted too deep into the ground.

A stake implanting tool is provided. The stake implanting tool includes an elongated body designed with angled aluminum. The elongated body has a lower end and an upper end. A handle is slidably disposed within a channel defined by the elongated body. A flat stake driver is operably connected to the handle. A slot is disposed on the elongated body. When the handle is in the resting position, a stake is placed within the slot. The stake is retained to the slot by a spring loaded pin. A rounded base disposed on a lower end of the elongated body supports the device on the land mat. An aperture is disposed on the rounded base. In operation, the handle is slid down the channel, the stake is ejected through the aperture into the ground. A stopping guard prevents the stake from being implanted too deep into the ground.

A manually operated staple gun includes a frame, a staple magazine, and a user-actuated unit. The user-actuated unit is mounted in the frame to switch between a first condition wherein the magazine is configured to guide staples of a first width along a guide axis into a ready position to be driven into a work piece and a second condition wherein the magazine is configured to guide staples of a second width along the guide axis into the ready position to be driven into a work piece.

A manually operated staple gun includes a frame, a staple magazine, and a user-actuated unit. The user-actuated unit is mounted in the frame to switch between a first condition wherein the magazine is configured to guide staples of a first width along a guide axis into a ready position to be driven into a work piece and a second condition wherein the magazine is configured to guide staples of a second width along the guide axis into the ready position to be driven into a work piece.

A hammer tacker is provided, including a grip portion and a body portion; a magazine, including a rail, at least partially received in the housing, being movable relative to the hosing between a stapling position and a staple-installing position, including an outlet disposed at a front end of the body portion; a biasing mechanism, including a push member movably mounted to the rail and a constant force spring which is rollable, the constant force spring being positionally attached to the rail through a connection portion and located at a front end of the magazine, and the constant force spring being attached to an inner face of the push member, the push member being movable to be correspondingly above or beyond the connection portion; a striking mechanism, mounted to the main body and configured to strike at least one staple installed in the magazine.

A hammer tacker is provided, including a grip portion and a body portion; a magazine, including a rail, at least partially received in the housing, being movable relative to the hosing between a stapling position and a staple-installing position, including an outlet disposed at a front end of the body portion; a biasing mechanism, including a push member movably mounted to the rail and a constant force spring which is rollable, the constant force spring being positionally attached to the rail through a connection portion and located at a front end of the magazine, and the constant force spring being attached to an inner face of the push member, the push member being movable to be correspondingly above or beyond the connection portion; a striking mechanism, mounted to the main body and configured to strike at least one staple installed in the magazine.

A fastener driving tool includes a housing, a striking member, an energy storing unit and a handle unit. The energy storing unit has a torsion spring which has weighted and driving legs extending from two ends of a coil. The driving leg is biased against and engaged with the weighted leg to be preloaded with a downward potential energy that urges a downward movement of the torsion spring and the striking member. The handle unit includes a handle and an anchoring member removably engaged with the striking member. When the handle is pivotally moved from a ready position to a striking position, the weighted leg is moved downwardly and the anchoring member and the striking member are moved upwardly to gradually increase a loading of the torsion spring for the striking member.

A fastener driving tool includes a housing, a striking member, an energy storing unit and a handle unit. The energy storing unit has a torsion spring which has weighted and driving legs extending from two ends of a coil. The driving leg is biased against and engaged with the weighted leg to be preloaded with a downward potential energy that urges a downward movement of the torsion spring and the striking member. The handle unit includes a handle and an anchoring member removably engaged with the striking member. When the handle is pivotally moved from a ready position to a striking position, the weighted leg is moved downwardly and the anchoring member and the striking member are moved upwardly to gradually increase a loading of the torsion spring for the striking member.