WO2016158715A1 - Outil pneumatique - Google Patents

Outil pneumatique Download PDF

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Publication number
WO2016158715A1
WO2016158715A1 PCT/JP2016/059542 JP2016059542W WO2016158715A1 WO 2016158715 A1 WO2016158715 A1 WO 2016158715A1 JP 2016059542 W JP2016059542 W JP 2016059542W WO 2016158715 A1 WO2016158715 A1 WO 2016158715A1
Authority
WO
WIPO (PCT)
Prior art keywords
operation lever
air
tool
side walls
lever
Prior art date
Application number
PCT/JP2016/059542
Other languages
English (en)
Japanese (ja)
Inventor
保全 鈴木
崇太 藤森
Original Assignee
日東工器株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日東工器株式会社 filed Critical 日東工器株式会社
Priority to CN201680016998.1A priority Critical patent/CN107427997B/zh
Priority to EP16772596.9A priority patent/EP3275598B1/fr
Priority to KR1020177029226A priority patent/KR101917556B1/ko
Publication of WO2016158715A1 publication Critical patent/WO2016158715A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles

Definitions

  • the present invention relates to an air tool, and more particularly, to an air tool provided with a mechanism for restricting operation of an operation lever.
  • An air tool such as a pneumatic belt type polishing machine or a torque wrench that operates using compressed air as a drive source is usually an air motor and a tool body that houses the air motor and has an air supply path for supplying compressed air to the air motor. Part, a valve for opening and closing the air supply path, and an operation lever attached to the outside of the tool body part, and operating the operation lever to open and close the valve to operate the drive of the air motor ing.
  • Some air tools are equipped with a safety mechanism to prevent the operating lever from being inadvertently operated.
  • the operation of the operation lever is limited by engaging a stopper with the tip portion of the operation lever.
  • the operation lever has a groove formed on one side surface, and the displacement of the operation lever is limited by the stopper engaging with the groove.
  • the pneumatic tool is not activated by operating the operating lever even though the limiting member such as the stopper is in a position for limiting the operation of the operating lever.
  • the displacement limitation of the operation lever by the stopper needs to be made stable and strong.
  • the operation lever and the stopper are usually engaged in a slightly unstable state at only one place, and the stability of the engaged state is not always sufficient. It was.
  • the present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide an air tool in which a restricting member that restricts displacement of an operation lever is engaged with the operation lever in a more stable state.
  • the present invention An air motor, A tool body having an air supply path for accommodating the air motor and supplying compressed air to the air motor; A valve for opening and closing the air supply path; An operation lever, which is mounted on the tool main body so as to be displaceable, for opening and closing the valve, between a stop position where the valve is closed and a drive position where the valve is open An operation lever having two locking protrusions that are displaceable at the position and protrude in a direction from the stop position toward the drive position; A restricting member, which is attached to the tool main body so as to be displaceable, for restricting the displacement of the operation lever, and is opposed to the engagement protrusion so as to face the engagement protrusion of the operation lever.
  • Two restricting projections projecting on the operating lever and when the operating lever is about to be displaced from the stop position to the driving position, the operating lever is in contact with the corresponding engaging projection.
  • a restriction position that prevents displacement to the driving position, and the two restriction protrusions and the two locking protrusions do not contact when the operating lever is displaced from the stop position to the driving position.
  • a limiting member that is displaceable between a release position that allows the operation lever to be displaced to the drive position; With An air tool is provided in which the two locking protrusions and the two restricting protrusions are spaced from each other in the displacement direction of the restricting member.
  • the operating lever is attached to the tool body so as to pivot and displace between the stop position and the drive position;
  • the restricting member may be attached to the tool body so as to be displaced between the restricting position and the releasing position in a direction orthogonal to a plane on which the operating lever pivots. .
  • the operating lever has a lever body portion having a U-shaped cross section composed of two side walls and a bottom wall connecting the two side walls, and the two side walls are formed by at least a part of the two side walls.
  • the locking projection can be configured.
  • the restricting member has a restricting member main body portion having a U-shaped cross section composed of two side walls and a top wall connecting the two side walls. Two restricting protrusions may be formed so that the distance between the two side walls of the restricting member is the same as the distance between the two side walls of the operating lever.
  • the tool body includes an air supply pipe constituting the air supply path, and a housing that accommodates the air supply pipe,
  • the restricting member is disposed between the air supply pipe and the operation lever;
  • the air supply pipe has a guide surface adapted to slidably support the restricting member, and the guide surface is formed so as to face the locking projection of the operation lever. it can.
  • a biasing member that biases the restriction member toward the restriction position can be further provided.
  • FIG. 6 is a top view of the operation lever and the limiting member in FIG. 5.
  • VII-VII line of FIG. 5 Comprising: It is a figure when a restricting member exists in a restriction
  • VII-VII line of FIG. 5 Comprising: It is a figure when a restricting member exists in a cancellation
  • FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 5 when the operation lever is in a driving position.
  • the air tool 10 includes a tool main body 12 and a belt driving unit 14, and an air motor 16 (FIG. 3) accommodated in the tool main body 12. 4), the endless grinding belt 22 wound between the drive pulley (not shown) rotated by the pulley support member 18 and the idle pulley 20 rotatably supported by the pulley support member 18 is rotated and driven.
  • a belt-type grinding tool 10 that grinds the work material by being pressed against the work material.
  • the tool main body 12 includes a housing 24 that houses the air motor 16 and a separate air supply / exhaust pipe 26 that is disposed in the housing 24.
  • An air supply path 28 for supplying compressed air to the air motor 16 and an exhaust path 30 for exhausting compressed air from the air motor 16 are formed in the air supply / exhaust pipe 26.
  • the supply / exhaust pipe 26 includes a valve 32 for opening and closing the air supply passage 28, an operation lever 34 for operating the opening / closing of the valve 32, and a limiting member 36 for limiting the displacement of the operation lever 34. It is attached.
  • the valve 32 includes a valve body 40 configured to be sealingly engaged with a valve seat portion 38 provided in the air supply passage 28, and a spring 42 that urges the valve body 40 to press the valve seat portion 38 against the valve seat portion 38.
  • the valve operating shaft 44 is connected to the valve body 40 and extends to the outside of the air supply / exhaust pipe 26. When the valve operating shaft 44 is pushed into the air supply path 28, the valve body 40 is tilted, a gap is formed between the valve body 40 and the valve seat portion 38, and the air supply path 28 is opened. When the force for pushing the valve operating shaft 44 is released, the valve body 40 is again in a sealing engagement with the valve seat portion 38 by the urging force of the spring 42 to close the air supply passage 28. It is pushed back toward the outside of the air supply path 28.
  • the operation lever 34 has a lever main body portion 46 accommodated in the housing 24 and an operation portion 48 partially protruding from the outside of the housing 24.
  • the lever main body 46 is composed of two side walls 50a and 50b and a bottom wall 52 connecting the side walls 50a and 50b.
  • FIG. It has a letter shape.
  • lever attachment portions 54a and 54b extending between the air supply / exhaust pipe 26 and the housing 24 are connected to the two side walls 50a and 50b, respectively, and the air supply / exhaust pipe 26 is connected by these two lever attachment portions 54a and 54b. Is sandwiched from the side.
  • the operation lever 34 is pivotally attached to the supply / exhaust pipe 26 by a pivot 56 at the lever attachment portions 54a and 54b. 3 and 4, the valve 32 is in a closed state in which the air supply passage 28 is closed, and the operation lever 34 is directed downward as viewed in the figure by the valve operating shaft 44 of the valve 32 in the closed state. Pressed and held at the stop position.
  • the operating portion 48 of the operating lever 34 is pushed into the housing 24 and pivoted against the urging force of the spring 42 of the valve 32, the operating lever 34 is engaged with the bottom wall 52 of the lever main body 46.
  • the valve operating shaft 44 is pushed into the air supply path 28, and the valve 32 is in an open state in which the air supply path 28 is opened.
  • the operation lever 34 can pivot about the pivot 56 between the stop position where the valve 32 is closed and the drive position where the valve 32 is opened. By displacing from the stop position to the drive position, the valve 32 is opened, compressed air is supplied to the air motor 16, and the drive of the air tool 10 is started.
  • the lever main body 46 and the lever mounting portions 54a and 54b are configured as an integral member manufactured by sheet metal processing.
  • the restricting member 36 includes a restricting member main body 62 having a U-shaped cross section including two side walls 58a and 58b and a top wall 60 connecting the side walls 58a and 58b.
  • the operation unit 64 is fixed to the top wall 60 of the member main body 62.
  • the restricting member 36 is attached to the air supply / exhaust pipe 26 so that the top wall 60 is slidably engaged with a guide surface 66 formed on the lower surface of the air supply / exhaust pipe 26, and the operation lever 34 pivots. It can be displaced in a direction perpendicular to the plane (the surface constituting the paper surface of FIGS. 3 and 4).
  • a spring 67 is set between the limiting member 36 and the housing 24, and the limiting member 36 is biased laterally (downward as viewed in FIG. 6) by the spring 68.
  • the limiting member main body 62 having a U-shaped cross section is manufactured by sheet metal processing.
  • the two side walls 50a and 50b of the operation lever 34 protrude in the direction from the stop position to the drive position, that is, upward, and part of the operation lever 34 constitutes locking protrusions 68a and 68b.
  • the two side walls 58a and 58b of the limiting member 36 constitute limiting protrusions 70a and 70b that protrude in the opposite direction, that is, downward, with respect to the locking protrusions 68a and 68b of the operation lever 34.
  • the locking projections 68a and 68b of the operating lever 34 and the limiting projections 70a and 70b of the limiting member 36 are both arranged at an interval in the displacement direction of the limiting member 36, and with respect to the plane on which the operating lever 34 pivots.
  • the limiting member 36 is attached to the guide surface 66 formed on the air supply / exhaust pipe 26 in the direction facing the locking projections 68a and 68b, the limiting member 36 pushed by the operation lever 34 is the guide surface 66. It is supported by and can maintain a stable posture.
  • the operation portion 64 of the restricting member 36 protrudes outside the housing 24 of the tool main body 12 as shown in FIG.
  • the restricting member 36 When the operating portion 64 of the restricting member 36 is pushed into the housing 24 against the urging force of the spring 68, the restricting member 36 is displaced to the left as viewed in the drawing to the release position shown in FIG.
  • the restricting protrusions 70a and 70b of the restricting member 36 are directly in front of the engaging protrusions 68a and 68b of the operating lever 34 in the displacement direction of the operating lever 34 (vertical direction in the drawing). Will not face each other. Accordingly, when the operating portion 64 is pushed to displace the operating lever 34 from the stop position toward the driving position, the restricting projections 70a and 70b and the locking projections 68a and 68b are not in contact with each other.
  • the operating lever 34 When the force pushing the operating portion 48 of the operating lever 34 in the driving position is loosened, the operating lever 34 is moved via the valve operating shaft 44 by the biasing force of the spring 42 of the valve 32 and the pressure received by the valve body 40 from the compressed air. Then it is pushed down and pivots to the stop position. As the operation lever 34 returns to the stop position, the restriction member 36 is also returned to the restriction position by the spring 68.
  • the amount of displacement required to displace the restricting member 36 from the restricting position to the releasing position is only the thickness of each side wall 58a, 58b, 50a, 50b.
  • the amount of displacement of the limiting member 36 can be made smaller than the interval between the positions where the member 36 abuts, that is, the interval between the locking projections 68a and 68b and the interval between the limiting projections 70a and 70b.
  • a belt-type grinding tool is shown as an embodiment of the air tool 10 of the present invention, but other tools such as a polishing machine and a torque wrench may be used.
  • other tools such as a polishing machine and a torque wrench may be used.
  • two each of the locking protrusions 68a and 68b of the operation lever 34 and the limiting protrusions 70a and 70b of the limiting member 36 are provided, additional locking protrusions and limiting protrusions may be provided.
  • the air supply path 28 and the exhaust path 30 are configured by a supply / exhaust pipe 26 that is separate from the housing 24, but the air supply pipe that configures the air supply path 28 and the exhaust that configures the exhaust path 30.
  • the pipe may be a separate member, or both or one of the air supply path 28 and the exhaust path 30 may be formed in the housing 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Portable Power Tools In General (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Le problème à résoudre dans le cadre de la présente invention consiste à fournir un outil pneumatique pour amener un élément de régulation qui régule le déplacement d'un levier d'actionnement, à venir en prise avec le levier d'actionnement dans un état plus stable. La solution consiste en un outil pneumatique (10) qui est pourvu d'un élément de régulation (36) qui régule le déplacement d'un levier de fonctionnement (34). Le levier d'actionnement (34) peut être déplacé entre une position d'arrêt où le levier de commande ferme une soupape (32), et une position d'entraînement où le levier d'actionnement ouvre la soupape, et comporte deux saillies de verrouillage (68a, 68b) qui font saillie vers la position d'entraînement. L'élément de régulation (36) comporte deux saillies de régulation (70a, 70b) qui font saillie dans la direction opposée de sorte à faire face aux saillies de verrouillage. L'élément de régulation (36) est déplacé entre une position où les saillies de régulation (70a, 70b) sont en contact avec les saillies de verrouillage correspondantes (68a, 68b) pour empêcher le déplacement du levier d'actionnement (34) vers la position d'entraînement, et une position de libération où les saillies de régulation ne sont pas en contact avec les saillies de verrouillage pour permettre le déplacement du levier d'actionnement vers la position d'entraînement. Les saillies de verrouillage et les saillies de régulation sont disposées de sorte à être séparées par un certain intervalle dans la direction de déplacement de l'élément de régulation.
PCT/JP2016/059542 2015-03-27 2016-03-25 Outil pneumatique WO2016158715A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201680016998.1A CN107427997B (zh) 2015-03-27 2016-03-25 气动工具
EP16772596.9A EP3275598B1 (fr) 2015-03-27 2016-03-25 Outil pneumatique
KR1020177029226A KR101917556B1 (ko) 2015-03-27 2016-03-25 에어 공구

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015066952A JP6382142B2 (ja) 2015-03-27 2015-03-27 エア工具
JP2015-066952 2015-03-27

Publications (1)

Publication Number Publication Date
WO2016158715A1 true WO2016158715A1 (fr) 2016-10-06

Family

ID=57004556

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/059542 WO2016158715A1 (fr) 2015-03-27 2016-03-25 Outil pneumatique

Country Status (6)

Country Link
EP (1) EP3275598B1 (fr)
JP (1) JP6382142B2 (fr)
KR (1) KR101917556B1 (fr)
CN (1) CN107427997B (fr)
TW (1) TWI601607B (fr)
WO (1) WO2016158715A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858781A (en) * 1973-05-14 1975-01-07 Fastener Corp Safety mechanism for fastener driving tool
JPS56157975A (en) * 1980-05-06 1981-12-05 Max Co Ltd Safety device in gas-pressure drive type striking tool
JPH0368788U (fr) * 1989-11-02 1991-07-08
JPH09290377A (ja) * 1996-03-01 1997-11-11 Ryobi Ltd 電動工具のスイッチ機構
JP2009255236A (ja) * 2008-04-17 2009-11-05 Ryobi Ltd 手持ち式動力工具
US20110248061A1 (en) * 2010-04-08 2011-10-13 Central Fastener Co., Ltd. Shooting mode switch control mechanism for nail gun

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5235784A (en) * 1990-11-06 1993-08-17 Nitto Kohki Co., Ltd. Handy air tool
JP4507211B2 (ja) * 2007-09-03 2010-07-21 日立工機株式会社 打込機
US8800835B2 (en) * 2008-07-17 2014-08-12 Stanley Fastening Systems, Lp Fastener driving device with mode selector and trigger interlock
CN102039580B (zh) * 2009-10-21 2015-06-17 美克司株式会社 紧固件打入机
CN201841530U (zh) * 2010-09-10 2011-05-25 鹏泽企业股份有限公司 动力工具的安全扳机结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858781A (en) * 1973-05-14 1975-01-07 Fastener Corp Safety mechanism for fastener driving tool
JPS56157975A (en) * 1980-05-06 1981-12-05 Max Co Ltd Safety device in gas-pressure drive type striking tool
JPH0368788U (fr) * 1989-11-02 1991-07-08
JPH09290377A (ja) * 1996-03-01 1997-11-11 Ryobi Ltd 電動工具のスイッチ機構
JP2009255236A (ja) * 2008-04-17 2009-11-05 Ryobi Ltd 手持ち式動力工具
US20110248061A1 (en) * 2010-04-08 2011-10-13 Central Fastener Co., Ltd. Shooting mode switch control mechanism for nail gun

Also Published As

Publication number Publication date
TW201703943A (zh) 2017-02-01
TWI601607B (zh) 2017-10-11
CN107427997B (zh) 2021-03-12
CN107427997A (zh) 2017-12-01
KR20170128465A (ko) 2017-11-22
EP3275598B1 (fr) 2021-01-13
JP6382142B2 (ja) 2018-08-29
EP3275598A1 (fr) 2018-01-31
EP3275598A4 (fr) 2018-11-21
KR101917556B1 (ko) 2018-11-09
JP2016185583A (ja) 2016-10-27

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