Driving tool with push lever configured to contact housing

Patent metadata

Field	Value
Publication number	US-9669529-B2
Application number	US-201414458530-A
Country	US
Kind code	B2
Filing date	Aug 13, 2014
Priority date	Sep 27, 2013
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

In a driving tool, a push lever plunger is moved upward by a push lever unit when the push lever unit is disposed at an uppermost position. The push lever unit includes a first protruding part and a second protruding part. The first protruding part is configured to contact a first contact part of a housing when the push lever unit is disposed at the uppermost position. The second protruding part is configured to contact a second contact part of the housing when the push lever unit is disposed at the uppermost position. A compressed air control unit, the second protruding part, and an ejection channel are disposed within an imaginary plane extending in an approximate vertical direction. The compressed air control unit is disposed on a side opposite to the second protruding part with respect to the ejection channel in a horizontal direction.

First claim

What is claimed is:

1. A driving tool comprising:
a housing having a nose provided with an ejection channel for guiding a fastener, the ejection channel being defined inside the nose and extending in a vertical direction;
a push lever unit configured to move between a lowermost position and an uppermost position in the vertical direction relative to the housing;
a compressed air control unit configured to control supply of compressed air and including a push lever plunger, the push lever plunger being configured to move upward and downward, the push lever plunger being moved upward by the push lever unit when the push lever unit is disposed at the uppermost position; and
a driving unit configured to drive the fastener into a workpiece upon receiving the compressed air that has been supplied by the compressed air control unit;
wherein the housing includes a first contact part and a second contact part;
wherein the push lever unit includes a first protruding part and a second protruding part, the first protruding part being configured to contact the first contact part when the push lever unit is disposed at the uppermost position, the second protruding part being configured to contact the second contact part when the push lever unit is disposed at the uppermost position;
wherein the compressed air control unit, the second protruding part, and the ejection channel are disposed within an imaginary plane extending in an approximate vertical direction; and
wherein the compressed air control unit is disposed on a side opposite to the second protruding part with respect to the ejection channel in a horizontal direction.

2. The driving tool according to claim 1 , wherein the second protruding part is configured to contact the second contact part before the first protruding part contacts the first contact part while the push lever unit moves from the lowermost position to the uppermost position.

3. The driving tool according to claim 1 , wherein the second contact part has a sloped surface, the sloped surface being positioned on a position away from the ejection channel and protruding downward.

4. The driving tool according to claim 1 , wherein the second contact part has a sloped surface whose normal is directed toward the nose.

5. The driving tool according to claim 1 , further comprising a trigger lever provided on the housing;
wherein, when the trigger lever is operated and the push lever plunger is pushed upward, the compressed air control unit supplies the compressed air and the driving unit drives the fastener into the workpiece using the compressed air that has been supplied.

6. A driving tool comprising:
a housing having a nose provided with an ejection channel for guiding a fastener, the ejection channel being disposed inside the nose and extending in a vertical direction, the nose having a lower end part;
a driver blade configured to reciprocate in the ejection channel and to drive the fastener;
a drive mechanism disposed in the housing and configured to drive the driver blade;
a trigger lever provided on the housing; and
a push lever unit configured to move upward and downward in the vertical direction relative to the nose,
wherein the push lever unit has:
a lower end portion disposed at a position closer to the lower end part of the nose than to the trigger lever; and
an upper end portion disposed at a position closer to the trigger lever than to the lower end part of the nose; and
a contact part configured to contact the housing, the contact part being disposed on a side opposite to the upper end portion with respect to the ejection channel in a horizontal direction;

wherein the lower end portion, the upper end portion, and the contact part are disposed in a single imaginary plane.

Assignees

• Hitachi Koki Kk

Inventors

• Ishizawa Yoshinori
• Oouchi Haruhiko

Classifications

• B25C1/008 Primary

  Safety devices · CPC title