A pneumatic tool includes a drive mechanism configured to drive by an air pressure of compressed air, a head valve having a first chamber configured to reserve compressed air that is supplied from an air source, and configured to drive the drive mechanism, according to a state of the compressed air in the first chamber, a trigger valve configured to actuate the head valve by exhausting the compressed air in the first chamber, and a control valve configured to disable actuation of the trigger valve.

A pneumatic tool includes a drive mechanism configured to drive by an air pressure of compressed air, a head valve configured to control supply of the compressed air to the drive mechanism, a trigger valve configured to actuate the head valve, a control valve configured to disable actuation of the trigger valve or the head valve, and a timer valve configured to be actuated based on an operation on a trigger and to disable actuation of the trigger valve or the head valve by actuating the control valve at a predetermined timing. The timer valve has a valve body configured to act on the control valve and is provided with a throttle portion configured to regulate a flow rate of a fluid generated in conjunction with movement of the valve body.

A pneumatic tool includes a drive mechanism configured to be actuated by a pneumatic pressure of compressed air, a body housing having the drive mechanism embedded therein, a grip housing connected to the body housing, and an electromagnetic valve configured to control supply of the compressed air to the drive mechanism, wherein the electromagnetic valve is arranged on an opposite side to the body housing, as seen in an extension direction of the grip housing.

A fastener driver includes an outer cylinder having a first end and an opposite, second end, an inner cylinder positioned within the outer cylinder, a moveable piston positioned within the inner cylinder, a driver blade attached to the piston and movable therewith between a top-dead-center position near the second end and a bottom-dead-center position near the first end along a drive axis and a frame that extends from the first end. The frame is integrally formed with the outer cylinder as a single piece

A fastener driver includes a housing, a cylinder supported by the housing, and a moveable piston positioned within the cylinder. A driver blade is attached to the piston and movable therewith between a top-dead-center position and a driven or bottom-dead-center position. The driver blade includes a body having a first side and an opposite, second side with the driving axis passing therebetween, a plurality of teeth extending from the first side of the body, and a plurality of projections extending from the second side of the body. The body and the projections are bisected by a common plane. The teeth extend at an oblique angle from the first side of the body relative to the common plane.

A pneumatic tool includes: a drive mechanism which is configured to be driven by compressed air of a first pressure: and a valve mechanism which is configured to be actuated by compressed air of a second pressure, which is higher than an atmospheric pressure and lower than the first pressure, and which is configured to switch whether or not to supply the compressed air of the first pressure to the drive mechanism.

A fastener driver includes an outer cylinder having a first end and an opposite, second end, an inner cylinder positioned within the outer cylinder, a moveable piston positioned within the inner cylinder, a driver blade attached to the piston and movable therewith between a top-dead-center position near the second end and a bottom-dead-center position near the first end along a drive axis and a frame that extends from the first end. The frame is integrally formed with the outer cylinder as a single piece.

The present invention is to prevent a drive-in position of a fastening member with respect to a material to be driven from being shifted. The drive-in machine according to the present invention comprises: an operation member; a contact member; a striking portion; and a first pressure chamber, the drive-in machine further comprising: a valve element for opening and closing a first passage through which a compressed fluid is sent to the first pressure chamber; a control mechanism having a first state and a second state in which the valve element is controlled; and a restriction mechanism for allowing and restricting the switching between the first state and the second state of the control mechanism. The restriction mechanism has first and second functions for allowing or restricting the control mechanism to be switched from the second state to the first state according to a time from a reference time point.

A nail gun includes a power module, a magazine module and a detection module. The power module performs a nail-driving operation by receiving a first pressure, and is prevented from receiving the first pressure when the power module is subjected to a second pressure. The detection module includes a valve rod and a detection member operable to pivot between an unsealing position and a sealing position. The detection member is moved to the sealing position when the number of the nails in the magazine module is less than a predetermined amount.

A switch device for a nail gun includes a body having a main chamber and a cylinder is received in the main chamber. A main path communicates with the cylinder. A recess is formed in the body and a valve is received in the recess. An end member is connected to the rear end of the body. An air way communicates between the recess and the end member. A first release path communicates the recess and outside of the body. A communication path communicates between the main chamber and the recess. A switch member is located at the communication path. By operating the switch member, the features of single mode and automatic mode of the nail gun is controlled.