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NZ750050B2 - Driving tool - Google Patents
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NZ750050B2 - Driving tool - Google Patents

Driving tool

Info

Publication number
NZ750050B2
NZ750050B2 NZ750050A NZ75005019A NZ750050B2 NZ 750050 B2 NZ750050 B2 NZ 750050B2 NZ 750050 A NZ750050 A NZ 750050A NZ 75005019 A NZ75005019 A NZ 75005019A NZ 750050 B2 NZ750050 B2 NZ 750050B2
Authority
NZ
New Zealand
Prior art keywords
valve
striking mechanism
seal part
combustion chamber
driving tool
Prior art date
Application number
NZ750050A
Other versions
NZ750050A (en
Inventor
Mitsuhiro Kimura
Eiichi Watanabe
Yu Yamamoto
Takashi Yuki
Original Assignee
Max Co Ltd
Filing date
Publication date
Priority claimed from JP2018007520A external-priority patent/JP7031324B2/en
Priority claimed from JP2018007633A external-priority patent/JP7006298B2/en
Priority claimed from JP2018007521A external-priority patent/JP7004154B2/en
Priority claimed from JP2018022482A external-priority patent/JP7043868B2/en
Priority claimed from JP2018022481A external-priority patent/JP7183543B2/en
Priority claimed from JP2018022480A external-priority patent/JP7091687B2/en
Priority claimed from JP2018026624A external-priority patent/JP7047446B2/en
Priority claimed from JP2018084500A external-priority patent/JP7070037B2/en
Priority claimed from JP2018084499A external-priority patent/JP7047573B2/en
Priority claimed from JP2018084498A external-priority patent/JP7047572B2/en
Priority claimed from JP2018084501A external-priority patent/JP7070038B2/en
Application filed by Max Co Ltd filed Critical Max Co Ltd
Publication of NZ750050A publication Critical patent/NZ750050A/en
Publication of NZ750050B2 publication Critical patent/NZ750050B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/10—Means for driving the impulse member comprising a built-in internal-combustion engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools

Abstract

Known driving tools have a configuration in which the seal material is exposed to a flow path of the gas when the valve is opened. The gas is at the high temperature and high pressure, so when the seal material is exposed to the flow path of the gas, the durability of the seal material is deteriorated due to an influence of heat. The present invention provides a driving tool comprising: a striking mechanism configured to be actuated by a combustion pressure of a mixed gas of compressed air and fuel; a combustion chamber in which the mixed gas of compressed air and fuel is to be combusted; a valve member configured to open and close communication between the striking mechanism and the combustion chamber; and a valve support member configured to support the valve member, wherein the valve member has a seal part provided on an outer peripheral surface along a moving direction of the valve member, the seal part configured to shut off between the striking mechanism and the combustion chamber, and wherein the seal part is in sliding contact to the valve support member so as to pass an inlet provided in the valve support member when the valve member is moved along the moving direction to open a striking cylinder inlet and to couple the inlet to the striking cylinder inlet. The driving tool of the present invention is capable of improving durability of a seal part and suppressing a size of a main body from increasing.

Claims (10)

1. A driving tool comprising: a striking mechanism configured to be actuated by a combustion pressure of a 5 mixed gas of compressed air and fuel; a combustion chamber in which the mixed gas of compressed air and fuel is to be combusted; a valve member configured to open and close communication between the striking mechanism and the combustion chamber; and 0 1 a valve support member configured to support the valve member, wherein the valve member has a seal part provided on an outer peripheral surface along a moving direction of the valve member, the seal part configured to shut off between the striking mechanism and the combustion chamber, and 5 1 wherein the seal part is in sliding contact to the valve support member so as to pass an inlet provided in the valve support member when the valve member is moved along the moving direction to open a striking cylinder inlet and to couple the inlet to the striking cylinder inlet. 0 2
2. The driving tool according to claim 1, wherein the combustion chamber is provided in an axial direction of the striking mechanism, and wherein the combustion chamber has the valve support member with which the seal part of the valve member is in sliding contact.
3. The driving tool according to claim 1 or 2, wherein the seal part has a metal seal material which is sliding contact with the valve support member. 0 3
4. The driving tool according to any one of claims 1 to 3 further comprising a striking mechanism inlet provided to a partitioning part which is configured to partition the striking mechanism and the combustion chamber, wherein the striking mechanism inlet is configured to enable a gas to flow from the combustion chamber into the striking mechanism, wherein the striking mechanism inlet is configured by providing an opening in an axial direction of the striking mechanism, and wherein the opening has a diameter smaller than a diameter of the striking mechanism.
5. The driving tool according to any one of claims 1 to 4 further comprising an urging member configured to urge the valve member, wherein the urging member is provided on an axis of the striking mechanism. 0 1
6. The driving tool according to any one of claims 1 to 5, wherein the valve support member has a diameter smaller than a diameter of the striking mechanism and is provided in the combustion chamber along an axial direction of the striking mechanism. 5 1
7. The driving tool according to any one of claims 1 to 5, wherein the valve member has a first seal part and a second seal part, wherein an actuation space is formed between the first seal part, the second seal part and an inner surface of the valve support member, and wherein the valve support member has a valve member inlet connecting the 0 2 combustion chamber and the actuation space.
8. The driving tool according to claim 7, when the valve member moves, the first seal part passes by the valve member inlet and the second seal part does not pass by the valve member, and 5 2 wherein the first seal part has a metal seal material which is sliding contact with the valve support member
9. The driving tool according to any one of claims 1 to 8, wherein the combustion chamber is arranged radially outside of the valve 0 3 member and the valve support member.
10. The driving tool according to claim 1, substantially as herein described with reference to any one of the
NZ750050A 2019-01-18 Driving tool NZ750050B2 (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP2018007520A JP7031324B2 (en) 2018-01-19 2018-01-19 Gas combustion type driving tool
JP2018007521A JP7004154B2 (en) 2018-01-19 2018-01-19 Gas combustion type driving tool
JP2018007633A JP7006298B2 (en) 2018-01-19 2018-01-19 Driving tool
JP2018022482A JP7043868B2 (en) 2018-02-09 2018-02-09 Driving tool
JP2018022481A JP7183543B2 (en) 2018-02-09 2018-02-09 driving tool
JP2018022480A JP7091687B2 (en) 2018-02-09 2018-02-09 Driving tool
JP2018026624A JP7047446B2 (en) 2018-02-19 2018-02-19 Driving tool
JP2018084500A JP7070037B2 (en) 2018-04-25 2018-04-25 Driving tool
JP2018084499A JP7047573B2 (en) 2018-04-25 2018-04-25 Driving tool
JP2018084498A JP7047572B2 (en) 2018-04-25 2018-04-25 Driving tool
JP2018084501A JP7070038B2 (en) 2018-04-25 2018-04-25 Driving tool

Publications (2)

Publication Number Publication Date
NZ750050A NZ750050A (en) 2022-05-27
NZ750050B2 true NZ750050B2 (en) 2022-08-30

Family

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