Abstract: A cylinder structure of a nail driver comprises a cylinder having a head and a body; the head having a first threaded area; and the body having a second threaded area which is engaged to the head. The head has a receiving portion for receiving a gun mouth and a nail cartridge and a pneumatic hole for guiding air to the gun mouth; and another end of the head has the first thread area and an annular insertion opening for connecting the body. A periphery of the body has a plurality of stop annular blocks and one end of the body has a through hole for being filled with air.

Abstract: A driving device of a cartridge of a nail driver comprises a cartridge of a nail driver for receiving nails; a stop plate installed at one lateral side of the cartridge for resisting against the nails within the cartridge; the stop plate being formed by a first plane and a second plane; the stop plate being movably installed to the cartridge by using the second plane. The cartridge includes a first end surface and a second end surface; the first end surface having a nail groove; the second end surface being formed with at least one retaining hole and a receiving hole; a positioning unit; one end of the positioning unit installed to the positioning hole and another end thereof is installed to the receiving hole so as to adjust the position of the stop plate with respect to the second end surface.

Abstract: A nail ejector includes a main body; and a nail magazine mounted on an end of the main body. Thus, the nail ejector is pressed and operated by a user's one palm to eject the nails outward successively. In addition, the nail magazine contains multiple nails which are ejected outward from the shaft hole of the guide tube successively without having to feed the nails repeatedly, thereby greatly saving the working time, and thereby enhancing the working efficiency.

Abstract: A safety device for a pneumatic stapler includes a pivotable member having a first end connected to a top of a stop member and a second end which can be pushed by a connection link connected to a rod which is pushed against the object to be stapled. The stop member can therefore be lifted and is pushed by the trigger to activate the activation member to open the valve to allow pressurized air to eject a staple. The activation member cannot be pushed if the stop member is not lifted to its operation position even if the trigger is pulled.

Abstract: A positioning device for a roofing washer dispenser includes a plurality of protrusions extending from an inner periphery of the hole defined through a plate connected to the dispenser. A feeding device has a pushing plate which is movably engaged with the groove so as to feed a washer in the groove into the hole. The protrusions are located at an intermediate point of a width of the inner periphery of the hole so that the washer can be supported by the protrusions before it is penetrated by the nail.

Abstract: A nail ejector includes a main body; and a nail magazine mounted on an end of the main body. Thus, the nail ejector is pressed and operated by a user's one palm to eject the nails outward successively. In addition, the nail magazine contains multiple nails which are ejected outward from the shaft hole of the guide tube successively without having to feed the nails repeatedly, thereby greatly saving the working time, and thereby enhancing the working efficiency.

Abstract: A roofing washer dispensing machine includes a barrel with a nose located at a front end of the barrel and a board is connected to the barrel. A passage is defined in an upper surface of the board and a receiving recess is defined in the upper surface of the board and located beneath the nose. A tube for receiving roofing washers is connected to the barrel and located at an angle relative to the upper surface of the board. The angle is less than 90 degrees. A distance between a lower open end of the tube and the receiving recess is less than a diameter of a washer. A pushing device is connected to the board and has a pushing plate which is movably received in the passage.

Abstract: A stack of caps each have a central hole and a connection cord frictionally extends through the central holes for collection the caps as a stack. A ring is connected to a first end of the cord and an enlarged end piece is integrally formed on a second end of the cord. The enlarged end piece is slightly larger than the central hole of each cap so that it is allowed to be pulled through the central holes when the cord is pulled out from the stack of the caps. A pushing mechanism includes a cover and a pushing rod which movably extends through the cover. The cover is threadedly engaged with the threaded inner periphery defined in the open top of the tube and a spring is mounted to the pushing rod. A pushing end is connected to the pushing rod so as to press on a top of the stack of the caps.

Abstract: A washer supply device includes a hollow tubular member connected to a side of a power nailer and an opening is defined longitudinally through the tubular member. A washer transferring member is connected to the power nailer a hole is defined through the washer transferring member. A plurality of washers each have a central hole and a flexible wire frictionally extends through the central holes to collect the washers together so that the washers are received in the tubular member via the opening. The wire is pulled out from the washers via the hole in the washer transferring member. A pushing rod movably connected to the tubular member compresses on the washers and includes an outer portion for pressing on a flange of each washer, and an inner portion which is engaged with an annular groove in each washer.

Abstract: A washer supply device includes a hollow tubular member connected to a side of a power nailer and an opening is defined longitudinally through the tubular member. A washer transferring member is connected to the power nailer a hole is defined through the washer transferring member. A plurality of washers each have a central hole and a flexible wire frictionally extends through the central holes to collect the washers together so that the washers are received in the tubular member via the opening. The wire is pulled out from the washers via the hole in the washer transferring member. A pushing rod movably connected to the tubular member compresses on the washers and includes an outer portion for pressing on a flange of each washer, and an inner portion which is engaged with an annular groove in each washer.

Abstract: A cap connection cord for connecting caps includes a ring connected to a first end of the cord and the cord frictionally fits in the hole in each of the caps. The pile of caps is conveniently put in a cylinder attached to the stapling gun and the cord can be pulled out from the central holes of the caps.

Abstract: A The present invention relates to a staple gun with a cap feeding device connected to a nose portion of the barrel of the staple gun. A cap container is located beside and in parallel with the barrel. A transportation member is connected between the cap container and the nose portion of the staple gun. A distance between the cap container and the nose portion is substantially only one diameter distance of the cap.

Abstract: A washer supply device for power nailers includes a tube receiving a pile of washers therein and the tube communicates a washer transferring device in which a curve slot is defined. A pushing device has a retractable rod which is pivotally connected to an end of a link and the other end of the link is connected to a pusher which is slidably received in the curve slot to push the washers toward a nose portion of the power nailer. The link has a fulcrum point which is pivotally connected to the washer transferring device so that the pusher can be reciprocatingly moved in the slot to feed the washers by the movement of the retractable rod.

Abstract: A washer supply device includes a retaining tube connected to a side of a power nailer and a slot is defined longitudinally through the retaining tube. A pile of washers are received in the retaining tube. A washer supply device is connected between a lower end of the retaining tube and a nose of the power nailer. A first member is movably received in the tubular tube and a second member is fixedly connected to an inner periphery of the retaining tube. A biasing band is connected between the first member and the second member. A pressing member is connected to the first member and presses the washers by the biasing band.

Abstract: A washer supply device includes a hollow tubular member connected to a side of a power nailer and an opening is defined longitudinally through the tubular member. A washer transferring member is connected to the power nailer a hole is defined through the washer transferring member. A plurality of washers each have a central hole and a flexible wire frictionally extends through the central holes to collect the washers together so that the washers are received in the tubular member via the opening. The wire is pulled out from the washers via the hole in the washer transferring member.

Abstract: A washer supply device includes a retaining tube connected to a side of a power nailer and a slot is defined longitudinally through the retaining tube. A pile of washers are received in the retaining tube. A washer supply device is connected between a lower end of the retaining tube and a nose of the power nailer. A first member is movably received in the tubular tube and a second member is fixedly connected to an inner periphery of the retaining tube. A biasing band is connected between the first member and the second member. A pressing member is connected to the first member and presses the washers by the biasing band.

Abstract: An air-tight structure of a pneumatic tool includes a top cap having a plurality of threaded holes defined in a bottom thereof. A tool body is connected to the top cap and has a shaft removably received therein. A plurality of passages are defined through the tool body and located in alignment with the threaded holes so that a plurality of bolts extend through the passages and are threadedly engaged with the threaded holes in the top cap. A groove is defined in a top of the tool body and a seal is received in the groove.

Abstract: A secure device for a power stapler includes a top cover on a front end board of the power stapler and a pivotal member pivotally connected to the top cover. A locking frame is engaged with two hooks on the front end board and two plates are overlapped to two side arms of the locking frame. Two springs are respectively mounted to the overlapped side arm and the plate. The two plates are connected to the pivotal member. The springs assists a convenient operation of the pivotal member whenever the pivotal member is lifted upward or pushed downward.