Abstract: A power tool includes a motor, an output shaft, a tool main body and an adjustable lighting mechanism. The output shaft is connected to the motor. The tool main body includes an end face and a curved guiding slot. The curved guiding slot is near the end face. The adjustable lighting mechanism includes a housing, a swinging member and a lighting source. The housing is moveably mounted to the tool main body and guided by the curved guiding slots. The swinging member is connected to the housing and includes a pivot centerline. The lighting source is disposed at the housing and includes a lighting centerline. The housing can rotate outward from an output axis, such that the pivot centerline moves within a swinging range and the lighting centerline moves within a lighting range.

Abstract: A power tool includes a motor, an output shaft, a tool main body and an adjustable lighting mechanism. The output shaft is connected to the motor. The tool main body includes an end face and a curved guiding slot. The curved guiding slot is near the end face. The adjustable lighting mechanism includes a housing, a swinging member and a lighting source. The housing is moveably mounted to the tool main body and guided by the curved guiding slots. The swinging member is connected to the housing and includes a pivot centerline. The lighting source is disposed at the housing and includes a lighting centerline. The housing can rotate outward from an output axis, such that the pivot centerline moves within a swinging range and the lighting centerline moves within a lighting range.

Abstract: A portable grinding tool includes a casing structure and a drive unit. The casing structure includes a main body part defining a first axis, and a grip part extending from the main body part along a second axis. The drive unit is mounted to the main body part and includes a rotating shaft for outputting rotational kinetic energy, the rotating shaft has an output section that extends along the first axis and passes out through the main body part. The output section and the grip part cooperate to define an angle included therebetween and ranging between 95 and 135 degrees.

Abstract: A pneumatic tool includes a casing, a cylinder unit, a valve knob and a pneumatic sealing device. The casing has a main portion that has an inner surface defining a receiving space therein, and an outer surface opposite to the inner surface. The cylinder unit is mounted in the receiving space. The valve knob is disposed in the receiving space and is rotatably connected to the cylinder unit. The pneumatic sealing device includes a ring member that is ring-shaped and rigid, that surrounds and is connected to the valve knob, and that is clamped between the inner surface of the casing and the cylinder unit for keeping a distance between the casing and the cylinder unit constant.

Abstract: A pneumatic ratchet wrench includes a main body formed with a receiving chamber, a head unit, a driving unit and an air motor. The head unit defines a gas passage, and includes a ring portion and a frame portion. The ring portion includes an exit in spatial communication with the gas passage and opens toward the frame portion. The driving unit includes a driving head, and a transmission shaft mounted in the head unit. The air motor drives the transmission shaft and includes a cylinder and a rotor. The cylinder includes a venting hole allowing gas produced in the cylinder to pass through the venting hole and the gas passage and to exit from the exit to be blown toward the frame portion.

Abstract: A power tool structure including a main body, a socket, a positioning ball, a pressing ring, a locking mechanism and a head is provided. The socket is connected to the main body and includes an arc space and a through hole passing through an annular wall of the socket to communicate with the arc space. The positioning ball is movably received in the through hole. The pressing ring includes a track. The locking mechanism sleeves on the pressing ring and is coupled to the pressing ring. The locking mechanism includes a coupling portion corresponding to the track, and the locking mechanism is forced to rotate so as to switch between a first position and a second position relative to the pressing ring, thereby allowing the locking mechanism to selectively press against the positioning ball. The head is pivotally inserted in the socket and includes a positioning portion.

Abstract: A pneumatic tool includes a main body unit, a control valve unit, a switch unit and a trigger unit. The main body unit has a flow path for guiding inflow of air. The control valve unit removably blocks the flow path. The switch unit includes a sleeve member movable between an open position where the control valve unit is driven to unblock the flow path, and a block position where the control valve unit is driven to block the flow path. The trigger unit includes a trigger member operable to move the sleeve member between the open position and the block position.

Abstract: A pneumatic tool includes a casing, a cylinder unit, a valve knob and a pneumatic sealing device. The casing has a main portion that has an inner surface defining a receiving space therein, and an outer surface opposite to the inner surface. The cylinder unit is mounted in the receiving space. The valve knob is disposed in the receiving space and is rotatably connected to the cylinder unit. The pneumatic sealing device includes a ring member that is ring-shaped and rigid, that surrounds and is connected to the valve knob, and that is clamped between the inner surface of the casing and the cylinder unit for keeping a distance between the casing and the cylinder unit constant.

Abstract: A pneumatic ratchet wrench includes a main body formed with a receiving chamber, a head unit, a driving unit and an air motor. The head unit defines a gas passage, and includes a ring portion and a frame portion. The ring portion includes an exit in spatial communication with the gas passage and opens toward the frame portion. The driving unit includes a driving head, and a transmission shaft mounted in the head unit. The air motor drives the transmission shaft and includes a cylinder and a rotor. The cylinder includes a venting hole allowing gas produced in the cylinder to pass through the venting hole and the gas passage and to exit from the exit to be blown toward the frame portion.

Abstract: A pneumatic tool includes a main body unit, a switch unit and a trigger unit. The main body unit defines a flow path, and an annular space surrounding the flow path. The flow path includes a front path section, and a rear path section separated from the front path section. The switch unit includes a sleeve member movable relative to the main body unit between an opening position where fluid communication between the front path section and the rear path section is permitted, and a closing position where fluid communication between the front path section and the sear path section is prevented. The trigger unit is rotatably mounted to the main body unit, and includes a trigger member operable to move the sleeve member between the opening position and the closing position.

Abstract: A switching device for a pneumatic tool includes a valve member, a connecting member and an operating unit. The valve member is rotatable relative to the pneumatic tool between first and second positions. The connecting member is coupled to the valve member in a manner such that the connecting member drives the rotation of the valve member and that an assembly of the valve member and the connecting member is flexible, so as to establish an air-tight seal between the valve member and a pneumatic motor of the pneumatic tool. The operating unit is mounted on the pneumatic tool and coupled co-rotatably to the connecting member.

Abstract: A pneumatic ratchet wrench includes a main body, an output unit, a driving unit, and a transmission unit. The main body has a handle section and a shrunk head section narrower than the handle section. The output unit includes a driving head for outputting a power. At least a major portion of the output unit is disposed within the shrunk head section. The driving unit is disposed within the main body for generating the power pneumatically. The transmission unit is disposed within the handle section for transmitting the power to the driving head.

Abstract: A pneumatic tool includes a handle body, an output unit having a driving head, a driving unit for driving the output unit, and a switching unit operable to change the rotational direction of the driving head. The handle body includes: a surrounding wall having a top surface and an axial space that has a central axis and that is adapted to permit the driving unit to be mounted therein; a mounting unit disposed at the top surface of the surrounding wall and adapted to permit the switching unit to be mounted therein; and a through hole formed vertically through the surrounding wall and in spatial communication with the axial space, the through hole being adapted to permit the output unit to be mounted therein.

Abstract: A pneumatic tool includes a main body unit, a control valve unit, a switch unit and a trigger unit. The main body unit has a flow path for guiding inflow of air. The control valve unit removably blocks the flow path. The switch unit includes a sleeve member movable between an open position where the control valve unit is driven to unblock the flow path, and a block position where the control valve unit is driven to block the flow path. The trigger unit includes a trigger member operable to move the sleeve member between the open position and the block position.

Abstract: A ratchet wrench includes a direction switching device. The direction switching device includes two switching members for controlling the rotational direction of a gear, a resilient unit disposed among a body and the switching members for biasing the switching members away from the gear, and a ring unit disposed rotatably on the body. The ring unit includes a convex portion and a concave portion, and is operable to allow the convex portion and the concave portion to act on the switching members, so that one of the switching members comes into contact with the gear, while the other of the switching members is removed from the gear. When no external force is applied to the ring unit, the switching members are biased by the resilient unit to remove from the gear.

Abstract: A motor assembly for a pneumatic tool includes: a motor cylinder coaxially secured in a tubular inner housing, which is coaxially secured in a tubular outer housing and has an inlet passage defining a longitudinal axis, including a valve seat, and defining forward and reverse passages that communicate with a motor chamber and extend through the valve seat, and an exhaust port that communicates with the motor chamber, and a throttle passage defined between the inner and outer housings; a motor rotor supported within the motor chamber and rotatable in a forward or reverse direction; and a rotary valve coaxially disposed in the inner housing, supported by the valve seat, and rotatable about the longitudinal axis between forward and reverse positions.

Abstract: A pneumatic driven wrench comprises: a housing defining a middle channel; a cylinder defining two fluid passages; a rotor; a first valve; a second valve driven by a valve-switching member for controlling fluid communication between the middle channel and a selected one of the fluid passages; a valve-triggering unit for driving the first valve; and a locking member driven by the valve-triggering unit to move between releasing and locking positions. The locking member engages one of the valve-switching member and the second valve when at the locking position. The locking member is disengaged from the one of the valve-switching member and the second valve when at the releasing position.

Abstract: A pneumatic impact tool includes a spindle extending along an X-axis, an output shaft extending along a Z-axis, and a spindle positioning device that includes a bushing and a stop pin. The bushing is threaded in a housing, and has a stop surface and a frustoconical outer surface. The stop surface obstructs the spindle from moving away from the output shaft. The frustoconical outer surface has opposite first and second ends. The first end is nearer to the X-axis and farther away from the Z-axis than the second end. The stop pin is disposed removably in the housing, and has an engaging surface abutting against the frustoconical outer surface, so as to prevent the bushing from moving in the housing in a direction away from the output shaft.

Abstract: A switching device for a pneumatic tool includes a valve member, a connecting member and an operating unit. The valve member is rotatable relative to the pneumatic tool between first and second positions. The connecting member is coupled to the valve member in a manner such that the connecting member drives the rotation of the valve member and that an assembly of the valve member and the connecting member is flexible, so as to establish an air-tight seal between the valve member and a pneumatic motor of the pneumatic tool. The operating unit is mounted on the pneumatic tool and coupled co-rotatably to the connecting member.

Abstract: A pneumatic tool includes a tool body and a driving unit. The tool body has a handle portion having opposite front and rear handle ends along a first axis, and a head portion that is connected to the front handle end of the handle portion, and that has opposite first and second head ends along a second axis perpendicular to the first axis. A ratio of the sum of a width of the head portion along the first axis and a distance between the front and rear handle ends of the handle portion to a distance between the first and second head ends is equal to or greater than 2. The driving unit is mounted in the head portion, and includes a cylinder operated by high pressure air, and a power transmission member driven by the cylinder for power transmission.