JPH0171078U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing an embodiment of a pneumatic nailing machine according to the present invention, FIG. 2 is a vertical sectional view of main parts showing a trigger valve and a door valve in the same embodiment,
FIG. 3 is a longitudinal cross-sectional view showing the state of communication between the push cylinder and each valve in the same embodiment, and FIGS. 4 a and b are partial cross-sectional views showing the chuck mechanism in the same embodiment.
A plan view, FIGS. 5a and 5b are vertical sectional views showing the nail feeding mechanism in the same embodiment, FIGS. 6, 7, and 8.
FIG. 9 is a longitudinal sectional view showing the operation of each valve in the same embodiment, and FIGS. 10a and 10b are longitudinal sectional views showing the operation of the door valve in the same embodiment. Explanation of symbols, 1... Nailer main body, 3... Hitting cylinder, 4... Hitting piston, 5... Hitting driver, 5a... Shaft, 5b... Cylindrical body, 6... Nose, 6a... Injection Hole, 8...Main air chamber,
9... Head valve, 20... Trigger valve, 2
7... Passage (exhaust hole), 28... Trigger lever,
30... Door valve, 33... Door valve stem, 40... Push cylinder, 41... Push piston, 42... Push stem, 45... Push rod (extrusion member), 49... Vertical guide presser (holding means) , 50, 51... Vertical guide (
chuck mechanism), 60...timing valve (control mechanism), 62...communication passage, 66...small hole, 70
. . . Contact arm, 80 . . . Nail feeding mechanism (nail feeding means), 87 .

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A striking driver that reciprocates through an injection hole in a nose protruding from the nailing machine body and drives nails supplied into the injection hole from the tip of the nose, and this driver. a striking piston integrally connected to each other, a striking cylinder in which the striking piston is slidably and tightly fitted, a main air chamber connected to an air pressure source, and a piston upper chamber of the striking cylinder and the main air chamber. A head valve for switching between the injection hole and the exhaust hole, a trigger valve for sending an activation signal to the head valve, and a nail connected to each other continuously inserted into the injection hole through an opening formed on the side surface of the nose. a pneumatic nailing machine having a nail supply means configured to be able to protrude and retract in the radial direction of the nose; and a pneumatic nailer that moves the extrusion member into the nose when the extrusion member is protruded into the nose. A cylinder mechanism that disengages from a connected state and projects a predetermined length from the tip of the nose, and a control mechanism that controls the operation of the extrusion member and the cylinder mechanism based on the operation of the nail gun main body. Pneumatic nailer. (2) The control mechanism is configured to retract the pushing member from the head of the nail based on a driving command from the nail gun main body, and to support the nail in a protruding state from the tip of the nose after driving is completed. A pneumatic nailing machine according to claim 1 of the claimed utility model registration, characterized in that the pneumatic nailing machine is controlled.