Signode Corporation

Itw Befestigungssysteme Gmbh

Paslode Gmbh

Horst Tacke

Arthur Klaus

Manfred Schafer

Siegmund Oberhofer

Gerhart Hartmann

Alfred Schneider

Kurt Schumann

A nail driving tool is disclosed as including a magazine (9) which, in turn, includes a guide path (7) for guiding a plurality of nails (10.sub.1, 10.sub.2, 10.sub.3. . . ) which are preferably disposed in the form of a nail strip. The guide path (7) is open at an outlet opening (2) from or through which a first or leading nail (10.sub.1) is conveyed into a discharge channel (3). A driving mechanism, such as, for example, a pneumatic driver (11) is disposed within the discharge channel (3) for driving or discharging the leading nail (10.sub.1) from or through the discharge channel (3). A cantilevered leaf spring (8) has one end thereof fixedly mounted upon the magazine (9) while the opposite free end thereof engages the second nail (10.sub.2) disposed immediately upstream of the leading nail (10.sub.1) so as to retain all of the nails disposed upstream of the leading nail (10.sub.1) while the leading nail (10.sub.1) is disposed in its readied state for discharge from the discharge channel (3) by the driver (11). A magnet (4) is disposed within a blind bore (6) upon the opposite side of the discharge channel (3) with respect to the outlet opening (2) for retaining the leading nail (10.sub.1) within the discharge channel (3) at its readied disposition for discharge by the driver (11). A bottom or end wall (5) of the blind bore (6) serves as a protection device for protecting the magnet (4) from the nails as the latter are serially conveyed into the discharge channel (3).

Nail driving tool

The present invention comprises a nail driving device with a magazine for nails held together in nail strips, with a nail transport device, wherein the nail strips are pressed in the direction of a fixed stop surface by means of a spring element, and moved in the direction of the exit channel of the device mouthpiece. In order to be able to work with nail strips in which the nail shafts are spaced apart, but rather lie shaft against shaft, it is provided that the nail transport device has a transport shuttle which can be moved in the longitudinal direction of the magazine using the piston rod of the feed cylinder, and which has a wedge-shaped nail strip separating element which is operative during the reverse movement of the shuttle such that the transport element is formed as an advance clamp which grasps the separated nail strip laterally during the forward movement of the transport shuttle in such a way that the nail strip resting against the stop surface can be clamped between the transport shuttle and the advance clamp by means of spring action, and can therefore be moved forwardly along with the transport shuttle.

Nail driving device

An annular cushioning buffer (1) is fabricated from an elastic material, such as, for example, polyurethane, for use in connection with fastener-driving tools for impact load distribution and energy absorption purposes. The buffer (1) includes an axially central passage (2) having an axis (M), as well as a plurality of axially extending holes (3) equiangularly spaced about the annular buffer (1) along a circular locus thereof. Radially extending slots (6) extend toward and open onto or pierce inner and outer peripheral or circumferential surfaces (4,5) of the buffer (1) in an alternative fashion so as to uniformly distribute the load impressed upon the buffer (1) by means of the striking piston of the fastener-driving tool.

Annular cushioning buffer for fastener-driving tools

An air-powered driving tool for returning the working piston to its driving position by way of an auxiliary piston and valve arrangement. After the fastener is driven, the auxiliary piston is operated to engage the working piston to move it to its driving position after which the auxiliary piston is moved to an inoperative position. A valve is operated to direct high-pressure air to the auxiliary piston to move it to a working piston engaging position and then the air is released to allow it to return to its inoperative position. Thus, there is no force opposing the working piston when the driving tool is operated to drive a fastener into a workpiece.

Air-powered driving tool, having a pilot piston and cylinder

The present invention relates to a novel outlet air muffler for air-powered transportable driving tools such as nailers. The muffler includes an outlet air duct formed in a housing endpiece and the top lid of the nailer. The outlet air duct is made up of two like chamber systems whose chambers are joined together by wall hollows. The chambers are furthermore interconnected through holes leading from the outlet side of the main control valve.

Muffler for air-powered nailers and the like

The invention relates to a cushioning device for a piston of a pneumatically operable driving tool which includes a cylinder, wherein a drive piston connected to a driver blade is axially movable; including further a bumper at the lower end of the cylinder and an annular chamber connected to a fluid power reservoir; this chamber is located underneath the piston and is surrounding the driver blade. The annular chamber, created by the piston and a wall, generally parallel to the face of the piston, will be reduced in volume to a certain extent when the wall impacts on the bumper to reduce the noise generated during the driving action.

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Bad Vilbel, Germany

Horst Tacke