ES343620A1 - Power operated tool - Google Patents

Power operated tool

Info

Publication number
ES343620A1
ES343620A1 ES343620A ES343620A ES343620A1 ES 343620 A1 ES343620 A1 ES 343620A1 ES 343620 A ES343620 A ES 343620A ES 343620 A ES343620 A ES 343620A ES 343620 A1 ES343620 A1 ES 343620A1
Authority
ES
Spain
Prior art keywords
valve
pressure
fluid
plunger
motor
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES343620A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Draulics Inc
Original Assignee
New Draulics Inc
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 New Draulics Inc filed Critical New Draulics Inc
Publication of ES343620A1 publication Critical patent/ES343620A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/02—Secateurs; Flower or fruit shears
    • A01G3/033—Secateurs; Flower or fruit shears having motor-driven blades
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/08—Other tools for pruning, branching or delimbing standing trees
    • A01G3/085—Motor-driven saws for pruning or branching
    • A01G3/086—Chain saws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0008—Means for carrying the chain saw, e.g. handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0016—Devices to adapt the chain saw for other purposes, e.g. drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/02—Chain saws equipped with guide bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
    • B27B17/086—Angle drives

Abstract

A fluid pressure-operated power wrench is controlled by a valve having a manually depressible plunger which, when depressed, closes an outlet port of the valve. This allows pressure to build up both inside the valve housing and in a line connected to the tool operating means. The pressure build-up in the valve housing acts on the movable valve element in such a way as to bias it toward the outlet-port-open " release " condition. A wrench (not shown) powered by a rotary fluid motor has that motor controlled by a valve including a plunger 190, Fig. 12, which when depressed can fully close an outlet port 208 whilst leaving an inlet port 206 still partly open. The inlet port communicates with a chamber 160 to which a fluid inlet pipe 166, Fig. 11, and also a passageway 162 leading to the fluid motor are both open. The outlet port communicates with a chamber 164 connected to a fluid return pipe 168, so that the fluid flow normally by-passes the conduit leading to the motor. When the outlet port is closed by depression of the plunger the by-pass between the inlet and return pipes is interrupted and pressure is applied both to the fluid motor and to the base of the valve plunger itself. This ensures that the valve is pressure-biased toward the " release " position, so that a spring loading is unnecessary, and also acts as a safety mechanism since over-pressure caused by an excessive load on the tool will tend to displace the valve plunger upwardly.
ES343620A 1966-08-01 1967-07-31 Power operated tool Expired ES343620A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US569540A US3343613A (en) 1966-08-01 1966-08-01 Power operated tool

Publications (1)

Publication Number Publication Date
ES343620A1 true ES343620A1 (en) 1968-09-16

Family

ID=24275860

Family Applications (1)

Application Number Title Priority Date Filing Date
ES343620A Expired ES343620A1 (en) 1966-08-01 1967-07-31 Power operated tool

Country Status (8)

Country Link
US (1) US3343613A (en)
BE (1) BE702174A (en)
CH (1) CH455677A (en)
DE (1) DE1628052A1 (en)
ES (1) ES343620A1 (en)
FR (1) FR1549243A (en)
GB (1) GB1172598A (en)
NL (1) NL6710581A (en)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731382A (en) * 1971-06-01 1973-05-08 D Wroe Extensible chain saw
DE2236138C3 (en) * 1971-07-23 1980-11-06 Husqvarna Ab, Joenkoeping Portable chain saw
US4024794A (en) * 1973-02-02 1977-05-24 Amp Incorporated Pneumatically operated cable-slitting tool
US4048722A (en) * 1976-06-28 1977-09-20 Howard Byron W Chain saw attachment
SE422297B (en) * 1980-05-14 1982-03-01 Jerzy Janczak DEVICE AND MISSING DEVICE
US4599079A (en) * 1985-03-04 1986-07-08 Chappell Gilmore H Automatic derailleur shifter
FR2602167B1 (en) * 1986-08-01 1993-10-29 Maire Bernard PNEUMATIC MACHINE FOR SCREWING NUTS FOR FIXING FLUID CIRCUIT CONNECTIONS
JPH0625290Y2 (en) * 1987-05-15 1994-07-06 株式会社共立 Handheld cutter device
JPH0632321Y2 (en) 1987-09-14 1994-08-24 株式会社共立 Cutting device
GB2233599B (en) * 1989-07-04 1993-06-09 Simon Richard Pallister Powered pole-saw
GB8920620D0 (en) * 1989-09-12 1989-10-25 Electrolux Northern Improvements in and relating to power-driven cutting tools
US5013282A (en) * 1989-11-20 1991-05-07 Technic Tool Corporation Extendible shaft assembly for portable tools
FR2661314B1 (en) * 1990-04-25 1993-05-21 Vidal Jean Paul TELESCOPIC ROD WITH ADJUSTABLE AND MOTORIZED CUTTING TOOL.
US5044080A (en) * 1990-11-30 1991-09-03 Trumpf Gruesch Ag Hand held nibbling machine
US5718050A (en) * 1996-03-08 1998-02-17 Technic Tool Corporation Pruning cutter
US6070676A (en) * 1998-08-13 2000-06-06 Framatome Connectors International Dual location handle and trigger for a hand-held power tool
IT1308195B1 (en) * 1999-02-23 2001-12-10 Franco Castelmani TOOL FOR SHRUBING SHRUBS.
US6415516B1 (en) * 2000-11-17 2002-07-09 Javier B. Tirado Power cutting device
SE0300989D0 (en) * 2003-04-04 2003-04-04 Electrolux Ab Device for a pole saw
US20050178010A1 (en) * 2004-01-23 2005-08-18 Alex Petrenko Chainsaw tool
JP4912976B2 (en) * 2007-07-31 2012-04-11 日東工器株式会社 Pneumatic tool
US8020304B2 (en) * 2008-02-13 2011-09-20 Echo, Incorporated Power transmission assembly for tool mounted on an elongate pole
WO2010094239A1 (en) 2009-02-20 2010-08-26 苏州宝时得电动工具有限公司 Vegetation trimmer
CN101690985B (en) * 2009-09-27 2011-09-14 华中科技大学 Hydraulic chain saw
JP5695201B2 (en) * 2010-09-13 2015-04-01 フスクバルナ アクティエボラーグ Handle device for power tools
DE102011005022A1 (en) * 2011-03-03 2012-09-06 Robert Bosch Gmbh Portable machine tool
DE102011005041A1 (en) * 2011-03-03 2012-09-06 Robert Bosch Gmbh Portable machine tool
DE102012206807A1 (en) * 2012-04-25 2013-10-31 Robert Bosch Gmbh Machine tool separating device
US9561546B1 (en) * 2013-05-15 2017-02-07 Clam Corporation Drill attachment
US20160318171A1 (en) * 2015-04-30 2016-11-03 Joseph Gonzales Telescopic saw
US9815220B2 (en) * 2015-05-27 2017-11-14 Dane Curtis Madson Multi-function adjustable chainsaw
US10350743B2 (en) * 2015-09-08 2019-07-16 Chervon (Hk) Limited Handheld electric tool
US10375896B2 (en) 2016-04-21 2019-08-13 Black & Decker, Inc. Pole hedge trimmer
US10130043B1 (en) * 2016-12-13 2018-11-20 Larry McNamara Chainsaw for trimming palm trees
CN106665145A (en) * 2016-12-14 2017-05-17 宁波鸿坤电器有限公司 Automated pruner
US11343973B2 (en) 2018-05-23 2022-05-31 Milwaukee Electric Tool Corporation Pole saw
US11878440B1 (en) * 2019-01-04 2024-01-23 Craig Mercier Unmanned aerial vegetation trimming system
US11766804B2 (en) * 2019-10-07 2023-09-26 Preston Hess Collapsible chainsaw
CN110744634A (en) * 2019-10-30 2020-02-04 商丘师范学院 Branches of tall trees sawing device that landscape environment beautified
CN113757226A (en) * 2021-09-18 2021-12-07 北京林业大学 Self-adaptive tree climbing and pruning method based on electro-hydraulic-pneumatic hybrid control
USD1018228S1 (en) * 2023-10-24 2024-03-19 Ruihong Lin Connector for a pole saw

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2372942A (en) * 1941-06-06 1945-04-03 Chicago Pneumatic Tool Co Compression riveter
US2612140A (en) * 1946-05-04 1952-09-30 Leonidas C Miller Fluid driven actuator for tools
US2703928A (en) * 1953-12-08 1955-03-15 Clyde E Southwick Tree trimming saw mechanism
US3099135A (en) * 1957-02-25 1963-07-30 Manco Mfg Co Hydraulically actuated tool
US3097022A (en) * 1960-01-14 1963-07-09 Sernetz Heinz Elastically mounted antifriction bearing structures

Also Published As

Publication number Publication date
BE702174A (en) 1968-01-15
CH455677A (en) 1968-07-15
NL6710581A (en) 1968-02-02
DE1628052A1 (en) 1971-01-28
FR1549243A (en) 1968-12-13
US3343613A (en) 1967-09-26
GB1172598A (en) 1969-12-03

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