Driving tool

Patent metadata

Field	Value
Publication number	US-11571793-B2
Application number	US-201915734563-A
Country	US
Kind code	B2
Filing date	May 17, 2019
Priority date	Jun 5, 2018
Publication date	Feb 7, 2023
Grant date	Feb 7, 2023

Abstract

A driving tool includes a housing having a support shaft for operably supporting an operating member, a contacting member which is capable of contacting and separating from a workpiece into which a fastener is to be driven, and which operates by contacting the workpiece, a pressure chamber to which and from which a compressible gas is supplied and discharged, a striking part operating in a direction to strike the fastener, a gas supply mechanism, and a transmission control member for controlling the operation of the gas supply mechanism, said operation being based on the operation of at least one of the operating member and the contacting member or the operation of both of them, wherein the fastener is struck when an operating force is applied to the operating member and to the transmission control member, and the contacting member is operated.

First claim

What is claimed is:

1. A driving tool comprising:
an operating member to which an operator applies an operating force;
a housing including a support shaft that operably supports the operating member;
a contacting member which is capable of contacting and separating from a workpiece into which a fastener is to be driven, and which operates by coming into contact with the workpiece;
a pressure chamber to which and from which a compressible gas is supplied and discharged;
a striking part which operates in a direction to strike the fastener when the compressible gas is supplied to the pressure chamber;
a gas supply mechanism which supplies the compressible gas to the pressure chamber; and
a transmission control member which operates independently of the operating member and the contacting member and to which the operator applies an operating force,
wherein the striking part strikes the fastener when an operating force of the operator is applied to the operating member and another operating force of the operator is applied the transmission control member and when the contacting member is operated,
wherein the transmission control member is movable within and outside an operating range of the operating member or the contacting member, and has a first state of being located within the operating range of the operating member or the contacting member and a second state of being located outside the operating range of the operating member or the contacting member when an operating force on the operating member is released.

2. The driving tool according to claim 1 , further comprising:
a driving part which is capable of switching a state of the transmission control member between the first state and the second state when an operating force is applied to the operating member; and
a switch which controls the driving part,
wherein the driving part performs
a releasing control which sets the transmission control member to the second state when an operating force is applied to the operating member and an operating force is applied to the switch, and
a restricting control which sets the transmission control member to the first state when the operating force of the switch is released.

3. The driving tool according to claim 2 , wherein at least one of the transmission control member and the driving part includes a magnetic force generating part which generates a magnetic force when power is supplied,
the driving part switches the state of the transmission control member between the first state and the second state by controlling supply of the power and stop of the power to the magnetic force generating part,
the support shaft operably supports the operating member and operably supports the transmission control member,
a first support shaft which rotatably supports the operating member and a second support shaft which operably supports the transmission control member are separately provided, and
the releasing control is to set the transmission control member to the second state from a time point when an operating force is applied to the operating member.

4. The driving tool according to claim 1 , wherein the transmission control member has:
a transmission control operating member which is graspable by the operator; and
a transmission control sliding part which is capable of switching between the first state and the second state.

5. The driving tool according to claim 1 , further comprising:
a mode selection member, wherein the mode selection member has:
a first mode in which an operating force is applied to the operating member in a state where the contacting member is in contact with the workpiece; and
a second mode in which the contacting member is brought into contact with the workpiece in a state where an operating force is applied to the operating member.

6. The driving tool according to claim 5 , further comprising:
a power supply part which performs supply and stop of power to the driving part,
wherein the driving part is activated when the power is supplied, and
the power supply part stops the supply of the power to a driving part when the operator operates the mode selection member to select the first mode, and supplies the power to the driving part when the operator operates the mode selection member to select the second mode.

7. The driving tool according to claim 5 , wherein the mode selection member has a mode switching urging member,
the second mode is maintained when the operator is operating the mode selection member, and
the first mode is maintained by the mode switching urging member releasing the second mode when the operator discontinues the operation of the mode selection member.

8. The driving tool according to claim 7 , further comprising:
a first grip part which is graspable by the operator with one hand and which is capable of operating the operating member; and
a second grip part which is graspable by the operator with the other hand and which is capable of applying an operating force on the mode selection member.

9. The driving tool according to claim 7 , further comprising:
a pivot support part provided in the housing;
a mode switching operating member rotatable via the pivot support part; and
a linear member which connects the mode selection member and the mode switching operating member,
wherein the second mode is maintained when the mode switching operating member is operated by the operator.

10. The driving tool according to claim 5 , further comprising:
a bearing part which slidably supports the support shaft in a first direction that intersects the direction to strike the fastener and in a second direction that is opposite to the first direction, and which rotatably supports the operating member; and
a sliding operation part which allows a support shaft urging member which applies an urging force to the support shaft in the first direction and the operating member to slide in the second direction,
wherein in the first mode, the operating member performs an operation of striking the fastener by a rotating operation of the operator at an end part of the bearing part in the first direction, and
in the second mode, the operating member performs an operation of striking the fastener when the operator performs both an operation of moving the bearing part to an end part in the second direction and the rotating operation.

11. The driving tool according to claim 1 , wherein the transmission control member has a control valve part which controls supply and discharge of the compressible gas to and from the pressure chamber.

12. A driving tool comprising:
an operating member to which an operator applies an operating force;
a housing including a support shaft that operably supports the operating member;
a contacting member which is capable of contacting and separating from a workpiece into which a fastener is to be driven, and which operates by coming into contact with the workpiece;
a pressure chamber to which and from which a compressible gas is supplied and discharged;
a striking part which operates in a direction to strike the fastener when the compressible gas is supplied to the pressure chamber;
a gas supply mechanism which supplies the compressible gas to the pressure chamber;
a transmission control member which operates independently of the operating member and the contacting member and to which the operator applies an operating force, wherein the striking part strikes the fastener when an operating force of the operator is applied to the operating member and another operating force of the operator is applied the transmission control member and when the contacting member is operated;
a mode selection

Assignees

• Koki Holdings Co Ltd

Inventors

• Ootsuka Kazuhiro
• Konnai Takuya

Classifications

• B25C1/043

  Trigger valve and trigger mechanism · CPC title

• B25C1/04

  operated by fluid pressure {, e.g. by air pressure} · CPC title

• B25C1/008 Primary

  Safety devices · CPC title

• B25C1/06

  operated by electric power · CPC title

• B25C1/047 Primary

  Mechanical details · CPC title