DRIVING MACHINE

Abstract

In the driving machine, a work contact portion 73 including an end face 74 to be contacted with a connecting metal member (a member to be fastened) K is provided in a push lever 10, a probe 78 is movably provided in the work contact portion 73, the probe 78 is energized in the driving direction by a spring (energizing means) 75 to thereby project its leading end portion 76 from the end face 74 of the work contact portion 73, and, in a state where the main body of the driving machine is pressed against a work (a member to be driven) W, by operating a trigger switch 6, the probe 78 is retreated from the driving passage of a nail (a fastening member) 41.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a broken section view of a combustion-type nail driving machine according to the invention, showing its initial state.

FIG. 2 is a perspective view of a nail guide mechanism part of the combustion-type nail driving machine according to the invention.

FIG. 3 is a partial section view of the nail guide mechanism part of the combustion-type nail driving machine according to the invention, showing a state just before starting to press the nail driving machine against a work.

FIG. 4 is a partial section view of the nail guide mechanism part of the combustion-type nail driving machine according to the invention, showing a state in which a work contact portion is contacted with the work after pressing the nail driving machine against the work.

FIG. 5 is a broken section view of the combustion-type nail driving machine according to the invention, showing a state in which a nail is in contact with the work.

FIG. 6 is a section view taken along the arrow mark A direction shown in FIG. 5.

FIG. 7 is a partial section view of the nail guide mechanism part of the combustion-type nail driving machine according to the invention, showing a state in which a nail is in contact with the work.

FIG. 8 is a broken side view of the combustion-type nail driving machine according to the invention, showing a state just before a nail is driven.

FIG. 9 is a partial section view of the nail guide mechanism part of the combustion-type nail driving machine according to the invention, showing a state just before a nail is driven.

FIG. 10 is a partial section view of a conventional nail driving machine, showing a state just before a nail is driven.

FIG. 11 is a partial section view of a conventional nail driving machine, showing a state for starting to drive a nail.

Claims

1. A driving machine for driving a fastening member into a member to be driven by operating a trigger switch, comprising: a push lever movable in a driving direction; andenergizing means for energizing the push lever in the driving direction, wherein a contact portion including an end face to be contacted with a member to be fastened is provided in the push lever,wherein a probe is movably provided in the contact portion,wherein the probe is energized in the driving direction by energizing means to thereby project its leading end portion from the end face of the contact portion, and,wherein, in a state where the main body of the driving machine is pressed against the member to be driven, the trigger switch is operated and the probe is retreated from the driving passage of a fastening member in linking with the operation of the trigger switch.

2. The driving machine as set forth in claim 1, wherein a guide groove is formed in the contact portion, and the probe is moved parallel to the driving direction along the guide groove with respect to the contact portion and is moved obliquely to thereby retreat the probe from the driving passage of the fastening member.

3. The driving machine as set forth in claim 1, wherein a guide groove is formed in the probe, and the probe is moved parallel to the driving direction along the guide groove with respect to the contact portion and is moved obliquely to thereby retreat the probe from the driving passage of the fastening member.

4. The driving machine as set forth in claim 2, wherein the guide groove is composed of two guide grooves formed in the driving direction.

5. The driving machine as set forth in claim 2, wherein, by transmitting the operation of the trigger switch to the probe through transmission means, the probe is moved along the guide grooves.

6. A driving machine as set forth in claim 1, wherein the retreat of the probe from the driving passage of the fastening means is completed before starting to drive the fastening means by operating the trigger switch.

7. A driving machine as set forth in claim 1, wherein the energizing force of first energizing means for energizing the probe is smaller than the energizing force of second energizing means for energizing the push lever.