WO2003064091A1 - Hydraulic operating unit - Google Patents

Hydraulic operating unit Download PDF

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Publication number
WO2003064091A1
WO2003064091A1 PCT/JP2003/001064 JP0301064W WO03064091A1 WO 2003064091 A1 WO2003064091 A1 WO 2003064091A1 JP 0301064 W JP0301064 W JP 0301064W WO 03064091 A1 WO03064091 A1 WO 03064091A1
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WO
WIPO (PCT)
Prior art keywords
pressure oil
hydraulic
oil
passage
coupling
Prior art date
Application number
PCT/JP2003/001064
Other languages
French (fr)
Japanese (ja)
Inventor
Kiyoshi Kimura
Original Assignee
Kabushiki Kaisha Ogura
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 Kabushiki Kaisha Ogura filed Critical Kabushiki Kaisha Ogura
Publication of WO2003064091A1 publication Critical patent/WO2003064091A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/005—With rotary or crank input
    • F15B7/006—Rotary pump input
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
    • A62B3/005—Rescue tools with forcing action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D17/00—Shearing machines or shearing devices cutting by blades pivoted on a single axis
    • B23D17/02—Shearing machines or shearing devices cutting by blades pivoted on a single axis characterised by drives or gearings therefor
    • B23D17/06—Shearing machines or shearing devices cutting by blades pivoted on a single axis characterised by drives or gearings therefor actuated by fluid or gas pressure
    • 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
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • 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
    • B25F5/005—Hydraulic driving means

Definitions

  • the present invention relates to a hydraulic operating device that drives an operating tool such as a spreader cutter by a hydraulically operated piston, and in particular, uses an operating tool and a pressure oil generating unit in two methods, an integrated type and a separated type.
  • an operating tool such as a spreader cutter by a hydraulically operated piston
  • a pressure oil generating unit in two methods, an integrated type and a separated type.
  • the hydraulic actuator according to the present invention is used, for example, when rescuing a person trapped in a car due to a traffic accident or rescuing a person trapped in a building due to an earthquake disaster.
  • the equipment In order for the equipment to be used effectively at the scene of an accident, it must be small and lightweight, and the working tools can be optimally positioned according to the situation at the site.
  • This hydraulic operating device includes a hydraulic operating portion having a gun-shaped hand grip, and a hydraulic operating portion having an operating mechanism driven by a piston reciprocating with pressure oil from the hydraulic generating portion.
  • a spool valve that slides back and forth in the hydraulic pressure generating section to return pressure oil sent to the hydraulic operating section to the return passage, an operating rod having a distal end connected to the spool valve, and a proximal end of the operating rod.
  • An oil passage switching mechanism having a slide handle connected to the side and located near the handle grip is attached.
  • this hydraulic operating device connects the hydraulic pressure generating section and the hydraulic pressure operating section to the hydraulic pressure generating section side or the hydraulic pressure generating section.
  • Tightening collar with ring groove on the peripheral surface, fixed to one side of the pressure operating part side, and fixed to the other side of the hydraulic operating part side or hydraulic pressure generating part side, the outer circumference of the tightening collar A plurality of steel balls mounted on the peripheral surface and assembled into the ring groove, and a plurality of steel balls mounted on the outer peripheral portion of the socket flange so as to be rotatable in the circumferential direction, and each of the steel balls on the inner peripheral surface. It is characterized in that it is detachably connected via an attachment / detachment mechanism including a sleeve having a concave portion corresponding to the ball.
  • an optimal hydraulic operating unit for example, a hydraulic operating tool for cutting
  • a hydraulic generating unit pressure oil generating unit
  • a handle grip is gripped with one hand. Can be moved to the required position and operated by operating the slide handle.
  • the present invention has been made to solve the problems of the above-mentioned conventional hydraulic operating device.
  • a hydraulic operating device capable of moving and arranging a hydraulic operating tool even in a narrow place and performing an effective operation is provided. The purpose is to provide.
  • the present invention provides an oil storage unit, a hydraulic pressure generation mechanism that pressurizes oil stored in the oil storage unit to generate pressure oil, and a pressure oil passage through which the pressure oil passes.
  • a portable pressure oil generating unit equipped with a pressure oil, an operating mechanism driven by a piston reciprocating with the pressure oil generated from the pressure oil generating unit, and a pressure oil
  • a portable hydraulic working tool having a pressure oil supply path for supplying to the ston, a pressure oil passage of the pressure oil generating unit and a pressure oil supply path of the hydraulic operating tool connected to each other,
  • a flexible hose having an oil passage for supplying pressure oil from the hydraulic oil tool to the hydraulic working tool, and a hydraulic actuator comprising:
  • a second coupling portion is provided at an end of the pressure oil supply path of the hydraulic working tool, and a third coupling portion having the same shape as the first coupling portion is provided at one end of the hose.
  • the other end is provided with a fourth coupling part having the same shape as the second coupling part, and the first coupling part and the second coupling part are detachable and
  • the third bracket It is characterized in that the ring portion and the second Kadzupuringu portion and the fourth coupling portion and the first force Ppuringu portion be it it removable. Further, the present invention is characterized in that a manual opening / closing means for opening / closing the oil passage of the hose is provided in the third coupling.
  • the present invention also provides a pressure oil passage, wherein a spool valve for supplying or stopping supply of the pressure oil to the hydraulic working tool side is provided, and the spool valve is configured to store the pressure oil from the pressure oil generation unit in the oil reservoir. A return hole for returning to the first position.
  • the pressure oil generating unit and the hydraulic operating tool are separated.
  • they can be connected by flexible hoses, and only the hydraulically operated tools can be moved to the required location.
  • two workers usually work together.However, the worker holding the hydraulic working tool is not allowed to work in the third coupling provided at the other end of the hose.
  • FIG. 1 is a sectional view showing an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing an example of a pressure oil generating unit.
  • FIG. 3 is a cross-sectional view showing an example of a hydraulic working tool.
  • FIG. 4 is a partial sectional view showing an example of a hose.
  • FIG. 5 is a cross-sectional view showing a state in which the pressure oil generating unit and the hydraulic working tool are directly joined.
  • FIG. 1 is a sectional view showing one embodiment of the present invention.
  • the hydraulic operating device according to the present invention includes a pressure oil generating unit 1, a hydraulic operating tool 2, and a flexible hose 3 for detachably connecting the pressure oil generating unit 1 and the hydraulic operating tool 2.
  • the pressure oil generation unit 1 includes an oil storage section 12 provided in the pressure oil generation unit main body 11, and pressurizes the oil stored in the oil storage section 12 to release the pressure oil. It has a hydraulic pressure generating mechanism 13 to generate pressure and a pressure oil passage 14 through which the pressure oil passes, and a gun-like handle grip 15 connected to the base end of the pressure oil generating unit body 11 It is made portable by grasping.
  • the hydraulic pressure generating mechanism 13 includes a pump mechanism driven by the electric motor 16 as described in the specification and drawings of the above-mentioned Patent Application 2000-No. 273697.
  • the generated pressure oil flows to the pressure oil passage 14.
  • a spool valve 17a is provided in the middle of the pressure oil passage 14 and is moved in the axial direction by the operation lever 17 to supply the pressure oil to the hydraulic operating tool 2 side. The supply can be stopped.
  • an oil return hole 17b is formed in the spool valve 17a in the axial direction, and the spool valve 17a moves in the axial direction (leftward in FIG. 2) to allow the pressure oil passage 14
  • the pressure oil from the pressure oil generation unit 1 is returned to the oil reservoir 12 through the oil return hole 17b.
  • a spool valve return spring 17c for urging the spool valve 17a in a direction away from the pressure oil generating unit main body 11 is provided on the outer periphery of the spool valve 17a.
  • a first coupling portion 18 is provided so as to be connected to the body 11.
  • the first coupling portion 18 has a cylinder portion 181 projecting from the pressure oil generating unit main body 11 in the axial direction.
  • a plurality of elliptical pins 182 move from the outside to the inside of the cylinder 181, through a plurality of through holes formed on the circumference. They are freely located.
  • a coupling sleeve 183 is fitted to the outer peripheral portion of the cylinder portion 181 so as to be slidable in the axial direction. By sliding the coupling sleeve 183 in the axial direction, The elliptical bin 18 of the above is protruded from the outside to the inside of the cylinder 181, or can be freely moved from the inside to the outside.
  • a slender cylindrical guide member 18 4 having a pressure oil passage 14 formed inside.
  • a hollow cylindrical sealing member 185 for sealing the passage 14 is mounted slidably in the axial direction.
  • the seal member 185 is for opening and closing the outlet of the pressure oil passageway 14 opened on the outer periphery of the guide member 184, and the pressure oil generating unit 1 is used for the hydraulic operating tool 2 or
  • the hose is separated from the hose 3, it is moved to the position where the outlet of the pressure oil passage 14 is closed by the return spring 1886 provided in the cylinder 181, and the pressure oil Oil leakage from the generating unit 1 can be prevented.
  • it When it is connected to the hydraulic operating tool 2 or the hose 3, it moves backward against the return spring 1886, and the pressure oil passage 14 opened in the outer periphery of the guide member 18 4 Open the outlet of, and enable the supply of pressure oil.
  • the hydraulic working tool 2 includes a hollow cylindrical cylinder body 21, and a piston 2 2 driven by pressure oil disposed reciprocally in the cylinder body 21.
  • An operating mechanism 23 that operates by reciprocation of the piston 22 and a pressure oil supply path 24 that supplies pressure oil to the rear end of the biston 22 are configured to surround the pressure oil supply path 24.
  • a second coupling section 25 is provided.
  • the second coupling part 25 includes a cylindrical part 25 1 fixed to the rear end of the cylinder body 21 and protruding outward so as to close the rear end of the cylinder body 21. I have.
  • the outer diameter of the cylindrical portion 25 1 is the same as the inner dimension of the cylinder portion 18 1 of the first coupling portion 18, and the cylindrical portion 25 1 fits into the cylinder portion 18 1 Sa It is supposed to be.
  • the outer peripheral surface of the cylindrical portion 25 1 is provided on the circumference with the same number of concave portions 25 2 as the elliptical pins 18 2. Have been.
  • a check valve 25 3 is provided at the end of the pressure oil supply passage 24 in the second coupling portion 25 to prevent oil from flowing out of the cylinder body 21.
  • a return spring 26 for returning the piston 22 to its original position is provided in the cylinder body 21.
  • FIG. 3 shows a spreader 230 used for a prying operation as a hydraulic operating tool.
  • the spreader 230 has a pair of prying pawl members 231, the rear ends of which are pivotally attached to the cylinder body 21 by pins 232, respectively.
  • the hose 3 is formed of a flexible member having strength capable of withstanding high pressure, and has an oil passage 31 for supplying pressure oil from the pressure oil generating unit 1 to the hydraulic working tool 2 therein. Is formed.
  • a third coupling part 32 and a fourth coupling part 3 connectable to the first coupling part 18 and the second coupling part 25, respectively. 4 are provided.
  • the third coupling part 32 can be connected to the second coupling part 25, and the fourth coupling part 34 can be connected to the first coupling part 18 .
  • the third coupling part 32 has basically the same shape and structure as the first coupling part 18, and the fourth coupling part 34 basically has the second coupling part 34. It has the same shape and structure as the coupling portion 25 of FIG.
  • the third force coupling portion 32 has a hollow cylindrical cylinder portion 321, similar to the first coupling portion 18, and has a plurality of elliptical pins 3 near the distal end of the cylinder portion 321. 22 is inserted and arranged so as to be able to move inside the cylinder section 3 2 1. Also, on the outer peripheral side of the cylinder part 3 21, a cut pudding that moves the elliptical pin 3 22 inward The sleeve 3 2 3 is mounted slidably in the axial direction.
  • An elongated cylindrical guide member 3 24 is provided inside the cylinder portion 3 21.
  • a hollow cylindrical seal member 3 2 5 for sealing the oil passage 31 around the guide member 3 24 is provided.
  • a return spring 326 for holding the sealing member 325 in the closed position is provided in the cylinder portion 3221.
  • the rear end of the cylinder portion 3 2 1 of the third coupling portion 3 2 is joined to a cylindrical holding portion 3 27 that can be held by an operator, and the inside of the holding portion 3 27 is an oil passage 3 1 Are formed through.
  • a through hole 328 penetrating through the oil passage 31 is formed in the holding section 327, and a cylindrical opening / closing valve 329 is slidable in the through hole 328. Has been inserted.
  • the on-off valve 329 closes and opens the oil passage 31, and a through-hole 331 communicating the oil passage 31 at an intermediate portion thereof is formed by drilling in a direction perpendicular to the axial direction of the on-off valve 329. It is established. Also, a spring 332 is mounted on the outer periphery of the opening / closing valve 329 protruding outside the holding section 327. Normally, a through hole 331 of the opening / closing valve 329 The opening and closing valve 3 29 is held at a position that does not match with 1, that is, a position where the oil passage 3 1 is closed.
  • the fourth coupling part 34 includes a cylindrical part 341, which has the same outer dimensions as the inner diameter of the cylinder part 18 1 of the first coupling part 18.
  • the same number of concave portions 342 as the elliptical pins 182 are provided on the circumference. It can be inserted.
  • a check valve is provided at the end of the oil passage 31 in the fourth coupling portion 34.
  • the worker closest to the work site can perform the operation of opening and fixing the spreader 230 at the open position at its own discretion without instructing the workers behind it, It is extremely effective in effectively rescuing a person.
  • connection between the hydraulic operating tool 2 and the hose 3 is made by inserting the second coupling part 25 of the hydraulic operating tool 2 into the third force coupling part 32 of the hose 3 0 '
  • the pressure oil generating unit 1 and the hydraulic operating tool 2 are connected without using the hose 3. Use with direct bonding.
  • the coupling connection is released by the operation opposite to the above operation, and the first coupling portion 18 and the second coupling portion 25 are directly connected.
  • the first coupling part 18 and the third coupling part 32 have basically the same shape, and the second coupling part 25 and the fourth coupling part 34 are different from each other. Since they have basically the same shape, the first coupling portion 18 and the second coupling portion 25 can be directly joined by the same operation as described above.
  • the fourth coupling portion 34 is separated from the first coupling portion 18, the oil passage 31 is shut off by the check valve 3 43 of the fourth coupling portion 34, and the oil in the hose 3 is removed. Leaks are shut off. Also, the spool valve 17a is moved in the axial direction (left direction in Fig.
  • FIG. 5 is a view showing a state where the pressure oil generating unit 1 and the hydraulic operating tool 2 are directly joined.
  • the electric motor 16 is driven in the same manner as described above to generate pressure oil, and the oil is supplied to the hydraulic operating tool 2 so that the spreader 230 is driven. Rotate in the opening direction.
  • the hydraulic operating device including the pressure oil generating unit 1 and the hydraulic operating tool 2 can be moved from the hydraulic oil generating unit 1 using the hose 3 to the hydraulic operating tool 2. It can be used in a separated state, and the hydraulic working tool 2 can be moved and arranged to work in a narrow work place where the pressure oil generating unit 1 is in the way and cannot enter.
  • the open / close valve 32 9 provided on the third coupling part 32 is operated to The hydraulic working tool 2 can be operated independently of the first worker, and rescue work and the like can be performed effectively.
  • the prying state can be maintained by the operation of only the front worker, and even if it is difficult to communicate with the rear worker, the work can be performed safely and securely. It can be carried out.
  • the hose 3 can be removed and the hydraulic operating tool 2 can be directly connected to the hydraulic oil generating unit 1 for use.
  • the operator holds the handgrip 15 with one hand and the cylinder of the hydraulic power tool 2 with the other hand. The user can work while holding the main body 21.
  • the structure in which the spool valve 17a is moved to the left in the drawing to block the pressure oil passage 14 is shown, but it is formed on the outer periphery of the spool valve 17a.
  • the pressure oil passage 14 can be shut off by moving the spool valve 17a rightward in the figure.
  • the spool valve 17 a By moving to the right, the pressure oil passage 14 can be shut off and the pressure oil from the oil generation unit 1 can be returned to the oil reservoir 12 through the oil return hole 17 b.
  • the pressure oil generating unit and the hydraulic operating The tool can be separated from the tool, connected with a flexible hose, and only the hydraulically operated tool can be moved to the required location.
  • two workers usually work together.However, the worker holding the hydraulic working tool is required to work within the fourth coupling provided at the other end of the hose.
  • the hydraulic operating device can be used by directly connecting the pressure oil generating unit and the hydraulic operating tool.
  • the pressure oil generation unit when the pressure oil generation unit is separated by providing the return hole for returning the pressure oil to the oil storage portion in the spool valve, even if the pressure oil generation unit is operating, the pressure oil can be removed. Can be automatically prevented from spouting.
  • the present invention when used as a device for performing rescue work at an accident site, improves work efficiency and exhibits particularly excellent effects.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Scissors And Nippers (AREA)
  • Actuator (AREA)

Abstract

A hydraulic operating unit comprising a first coupling section (18) provided at the end part of the pressure oil passage (14) of a pressure oil generating unit (1), a second coupling section (25) provided at the end part of the pressure oil supply passage (24) of a hydraulic operating tool (2), and a third coupling section (32) of the same shape as the first coupling section (18) provided at one end part of a hose (3) having the other end part provided with a fourth coupling section (34) of the same shape as the second coupling section (25), wherein the first and second coupling sections (18, 25) can be coupled removably, the second and third coupling sections (25, 32) and the first and fourth coupling sections (18, 34) can be removably coupled, respectively, and means (329) for opening/closing the oil passage is provided in the third coupling section (32).

Description

明 細 書 油圧作動装置 技 術 分 野  Description Hydraulic Actuator Technology
本発明は、 油圧作動式ビストンによりスプレツダゃカッ夕などの作動工具を駆 動する油圧作動装置に係わり、 とりわけ作動工具と圧力油発生ユニットとを、 一 体型及び分離型の二つの方法で使用することができる油圧作動装置に関する。 背 景 技 術  The present invention relates to a hydraulic operating device that drives an operating tool such as a spreader cutter by a hydraulically operated piston, and in particular, uses an operating tool and a pressure oil generating unit in two methods, an integrated type and a separated type. Related to a hydraulic actuating device. Background technology
本発明に係わる油圧作動装置は、 例えば交通事故で車内に閉じこめられた人を 救助する際や、 地震災害で建物内に閉じこめられた人を救出する際に用いられる 装置であるが、 このような装置を事故現場で効果的に使用するには、 装置は小型 で軽量であると共に、 現場の状況に応じて作動工具を最適な位置に配置し得るも のでなければならな'い。  The hydraulic actuator according to the present invention is used, for example, when rescuing a person trapped in a car due to a traffic accident or rescuing a person trapped in a building due to an earthquake disaster. In order for the equipment to be used effectively at the scene of an accident, it must be small and lightweight, and the working tools can be optimally positioned according to the situation at the site.
本件出願人は、 このような技術的課題を解決するために、 平成 1 2年 9月 8日 付で提出した特許出願 2 0 0 0年—第 2 7 3 6 9 7号 （特許出願公開 2 0 0 2年 第 7 8 9 8 8号） 「油圧作動装置」 により、 作業者が片手のみで各種操作をして 作動機構の制御を行うことができると共に、 半身になって作業しなければならな いような狭い現場であっても、 何ら支障なく作業を行うことのできる油圧作動装 置を提案した。  In order to solve such a technical problem, the applicant of the present application has filed a patent application filed on Sep. 8, 2012 in 2000—No. 273 697 (patent application publication 2 The year 2000 No. 7 898 8) The "hydraulic actuator" allows the operator to perform various operations with only one hand to control the operating mechanism and to work half-body. We proposed a hydraulically operated device that can work without any problem even in a small site where there is no such place.
この油圧作動装置は、 銃把状のハンドグリップを有する油圧発生部と、 油圧発 生部からの圧力油で往復動するピストンにより駆動される作動機構を有する油圧 作動部とを具備する油圧作動装置において、 油圧発生部に、 前後方向にスライ ド して油圧作動部に送られる圧力油を戻し通路に戻すスプール弁と、 先端側がスプ ール弁に連結される操作杆と、 操作杆の基端側に連結されハンドルグリップの近 傍に位置するスライ ド用ハンドルとを備えた油路切替機構が取り付けられたこと を特徴とするものである。  This hydraulic operating device includes a hydraulic operating portion having a gun-shaped hand grip, and a hydraulic operating portion having an operating mechanism driven by a piston reciprocating with pressure oil from the hydraulic generating portion. A spool valve that slides back and forth in the hydraulic pressure generating section to return pressure oil sent to the hydraulic operating section to the return passage, an operating rod having a distal end connected to the spool valve, and a proximal end of the operating rod. An oil passage switching mechanism having a slide handle connected to the side and located near the handle grip is attached.
またこの油圧作動装置は、 油圧発生部と油圧作動部とを、 油圧発生部側又は油 圧作動部側の t、ずれか一方側に固定され、 周面にリング溝を有する締め付けカラ 一と、 油圧作動部側又は油圧発生部側のいずれか他方側に固定されて、 締め付け カラーの外周部に装着され、 周面に組み込まれた複数の鋼球がリング溝に嵌合さ れるソケットフランジと、 ソケットフランジの外周部に周方向に回動可能に装着 され、 内周面に前記各鋼球に対応する凹部を有するスリーブとを備えた着脱機構 を介し、 着脱可能に連結してあることを特徴としている。 Also, this hydraulic operating device connects the hydraulic pressure generating section and the hydraulic pressure operating section to the hydraulic pressure generating section side or the hydraulic pressure generating section. Tightening collar with ring groove on the peripheral surface, fixed to one side of the pressure operating part side, and fixed to the other side of the hydraulic operating part side or hydraulic pressure generating part side, the outer circumference of the tightening collar A plurality of steel balls mounted on the peripheral surface and assembled into the ring groove, and a plurality of steel balls mounted on the outer peripheral portion of the socket flange so as to be rotatable in the circumferential direction, and each of the steel balls on the inner peripheral surface. It is characterized in that it is detachably connected via an attachment / detachment mechanism including a sleeve having a concave portion corresponding to the ball.
この油圧作動装置によれば、 必要に応じ最適な油圧作動部 （例えば切断用油圧 作動工具） を油圧発生部 （圧力油発生ユニット） に連結装着し、 片手でハンドル グリップを把持し、 油圧作動工具を所要の位置に移動配置し、 スライ ド用ハンド ルを操作して作業を行うことができる。  According to this hydraulic operating device, an optimal hydraulic operating unit (for example, a hydraulic operating tool for cutting) is connected to a hydraulic generating unit (pressure oil generating unit) as needed, and a handle grip is gripped with one hand. Can be moved to the required position and operated by operating the slide handle.
この油圧作動装置を用いることにより、 一人の作業者が、 狭い場所での救助作 業を効果的に行うことができるようになつたが、 現場によっては、 こじ開けある いは切断等すべき部分が、 障害物の奥の方に位置することがあり、 油圧作動工具 をその位置に的確に移動配置させることが困難な場合があった。  By using this hydraulic actuator, one worker can effectively perform rescue work in a narrow place.However, depending on the site, there are parts to be pry open or cut etc. In some cases, it was difficult to move and position the hydraulically-operated tool precisely at that position.
これは、 油圧作動装置の油圧発生部 （圧力油発生ユニット） が、 障害物にぶつ かって油圧作動工具をその位置に近づけることができないことが主な原因となつ ていた。  This was mainly due to the fact that the hydraulic pressure generating unit (pressure oil generating unit) of the hydraulic operating device could not approach the position of the hydraulic operating tool by hitting an obstacle.
本発明は、 上記従来の油圧作動装置が有する問題を解決するためになされたも のであり、 狭い場所にでも油圧作動工具を移動配置させ、 効果的に作業を行うこ とのできる油圧作動装置を提供することを目的とする。  SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the above-mentioned conventional hydraulic operating device. A hydraulic operating device capable of moving and arranging a hydraulic operating tool even in a narrow place and performing an effective operation is provided. The purpose is to provide.
また本発明は、 作業に合わせて、 圧力油発生ユニットと油圧作動工具とを分離 する際、 分離箇所から圧力油が漏洩しないようにした油圧作動装置を提供するこ とを目的とする。 発 明 の 閧 示  It is another object of the present invention to provide a hydraulic operating device that prevents pressure oil from leaking from a separation point when a pressure oil generating unit and a hydraulic operating tool are separated according to an operation. Presentation of the invention
本発明は、 上記目的を解決するために、 油貯留部と、 この油貯留部に貯留され た油を加圧し圧力油を発生させる油圧発生機構と、 この圧力油が通過する圧力油 通過路とを備えた携帯可能な圧力油発生ュニッ卜と、 圧力油発生ュニットから発 生された圧力油で往復動するビストンにより駆動される作動機構と、 圧力油をピ ストンへ供給する圧力油供給路とを備えた携帯可能な油圧作動工具と、 前記圧力 油発生ュニッ トの圧力油通過路と油圧作動工具の圧力油供給路とを互いに接続し、 圧力油発生ュニッ トから油圧作動工具へ圧力油を供給する油通路の形成された可 撓性のホースと、 からなる油圧作動装置において、 圧力油発生ユニットの圧力油 通過路の端部には第 1の力ップリング部が設けられ、 油圧作動工具の圧力油供給 路の端部には第 2のカツプリング部が設けられ、 前記ホースの一端部には前記第 1のカツプリング部と同一形状の第 3のカツプリング部が設けられ、 他端部には 前記第 2のカップリング部と同一形状の第 4のカップリング部が設けられ、 前記 第 1のカップリング部と第 2のカップリング部とは着脱可能であると共に、 前記 第 3のカップリング部と第 2のカヅプリング部および前記第 4のカップリング部 と第 1の力ップリング部とはそれそれ着脱可能であることを特徴としている。 また本発明は、 第 3のカツプリング内に前記ホースの油通路を開閉する手動の 開閉手段が設けられていることを特徴とする。 In order to solve the above-mentioned object, the present invention provides an oil storage unit, a hydraulic pressure generation mechanism that pressurizes oil stored in the oil storage unit to generate pressure oil, and a pressure oil passage through which the pressure oil passes. A portable pressure oil generating unit equipped with a pressure oil, an operating mechanism driven by a piston reciprocating with the pressure oil generated from the pressure oil generating unit, and a pressure oil A portable hydraulic working tool having a pressure oil supply path for supplying to the ston, a pressure oil passage of the pressure oil generating unit and a pressure oil supply path of the hydraulic operating tool connected to each other, And a flexible hose having an oil passage for supplying pressure oil from the hydraulic oil tool to the hydraulic working tool, and a hydraulic actuator comprising: A second coupling portion is provided at an end of the pressure oil supply path of the hydraulic working tool, and a third coupling portion having the same shape as the first coupling portion is provided at one end of the hose. The other end is provided with a fourth coupling part having the same shape as the second coupling part, and the first coupling part and the second coupling part are detachable and The third bracket It is characterized in that the ring portion and the second Kadzupuringu portion and the fourth coupling portion and the first force Ppuringu portion be it it removable. Further, the present invention is characterized in that a manual opening / closing means for opening / closing the oil passage of the hose is provided in the third coupling.
また本発明は、 圧力油通過路に、 圧力油を油圧作動工具側へ供給又は供給停止 するためのスプール弁が設けられ、 前記スプール弁には圧力油発生ュニッ卜から の圧力油を油貯留部に戻す戻し穴が設けられていることを特徴とする。  The present invention also provides a pressure oil passage, wherein a spool valve for supplying or stopping supply of the pressure oil to the hydraulic working tool side is provided, and the spool valve is configured to store the pressure oil from the pressure oil generation unit in the oil reservoir. A return hole for returning to the first position.
本発明によれば、 圧力油発生ユニットが邪魔になって、 必要箇所へ油圧作動ェ 具を移動配置することができないような場合には、 圧力油発生ュニッ卜と油圧作 動工具とを分離し、 それそれを可撓性のホースで接続し、 油圧作動工具のみを必 要箇所へ移動配置することができる。 そしてこのような場合には、 通常二人の作 業者が共同で作業することになるが、 油圧作動工具を保持した作業者は、 ホース の他端部に設けられた第 3のカツプリング内の油通路を開閉する手動の開閉手段 を操作して、 圧力油発生ュニットを保持する作業者とは独立して油圧作動工具の 作動を制御することができる。  According to the present invention, when the pressure oil generating unit is in the way and it is not possible to move and arrange the hydraulic operating tool to a required location, the pressure oil generating unit and the hydraulic operating tool are separated. However, they can be connected by flexible hoses, and only the hydraulically operated tools can be moved to the required location. In such a case, two workers usually work together.However, the worker holding the hydraulic working tool is not allowed to work in the third coupling provided at the other end of the hose. By operating the manual opening / closing means for opening / closing the passage, the operation of the hydraulic operating tool can be controlled independently of the operator holding the pressure oil generating unit.
また本発明によれば、 作業に合わせて、 圧力油発生ユニッ トと油圧作動工具と を分離する際、 分離箇所からの圧力油の漏洩が防止される。 図面の簡単な説明  Further, according to the present invention, when the pressure oil generating unit and the hydraulic working tool are separated from each other in accordance with the work, leakage of the pressure oil from the separation location is prevented. BRIEF DESCRIPTION OF THE FIGURES
図 1は本発明の実施の一形態を示す断面図。 図 2は圧力油発生ュニッ卜の一例を示す断面図。 FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a cross-sectional view showing an example of a pressure oil generating unit.
図 3は油圧作動工具の一例を示す断面図。  FIG. 3 is a cross-sectional view showing an example of a hydraulic working tool.
図 4はホースの一例を示す部分断面図。  FIG. 4 is a partial sectional view showing an example of a hose.
図 5は圧力油発生ュニットと油圧作動工具とを直接接合した状態を示す断面図。 発明を実施するための最良の形態  FIG. 5 is a cross-sectional view showing a state in which the pressure oil generating unit and the hydraulic working tool are directly joined. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 図面を参照して本発明の実施の形態について説明する。  Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図 1は、 本発明の一実施形態を示す断面図である。 本発明による油圧作動装置 は、 圧力油発生ュニッ卜 1と、 油圧作動工具 2と、 圧力油発生ュニット 1と油圧 作動工具 2とを着脱可能に接続する可撓性のホース 3とからなる。  FIG. 1 is a sectional view showing one embodiment of the present invention. The hydraulic operating device according to the present invention includes a pressure oil generating unit 1, a hydraulic operating tool 2, and a flexible hose 3 for detachably connecting the pressure oil generating unit 1 and the hydraulic operating tool 2.
圧力油発生ユニット 1は、 図 2に示すように、 圧力油発生ユニット本体 1 1内 に設けられた油貯留部 1 2と、 この油貯留部 1 2に貯留された油を加圧し圧力油 を発生させる油圧発生機構 1 3と、 この圧力油が通過する圧力油通過路 1 4とを 備え、 圧力油発生ュニット本体 1 1の基端部に連結された銃把状のハンドルグリ ップ 1 5を把持することにより携帯可能とされている。  As shown in FIG. 2, the pressure oil generation unit 1 includes an oil storage section 12 provided in the pressure oil generation unit main body 11, and pressurizes the oil stored in the oil storage section 12 to release the pressure oil. It has a hydraulic pressure generating mechanism 13 to generate pressure and a pressure oil passage 14 through which the pressure oil passes, and a gun-like handle grip 15 connected to the base end of the pressure oil generating unit body 11 It is made portable by grasping.
油圧発生機構 1 3は、 前記特許出願 2 0 0 0年—第 2 7 3 6 9 7号の明細書及 び図面に記載されたと同様に、 電動モー夕 1 6により駆動されるポンプ機構を備 え、 発生された圧力油は、 圧力油通過路 1 4へ流れる。  The hydraulic pressure generating mechanism 13 includes a pump mechanism driven by the electric motor 16 as described in the specification and drawings of the above-mentioned Patent Application 2000-No. 273697. The generated pressure oil flows to the pressure oil passage 14.
この圧力油通過路 1 4の途中には、 スプール弁 17aが配設され、 このスプール 弁 17aを操作レバー 1 7で軸方向に移動させることにより、 圧力油を油圧作動ェ 具 2側へ供給又は供給停止することができるようにされている。  A spool valve 17a is provided in the middle of the pressure oil passage 14 and is moved in the axial direction by the operation lever 17 to supply the pressure oil to the hydraulic operating tool 2 side. The supply can be stopped.
また、 スプール弁 1 7 aには、 軸線方向に油戻し穴 1 7 bが形成され、 スプ一 ル弁 1 7 aが軸線方向 （図 2において左方向） に移動して圧力油通過路 1 4を遮 断した際には、 圧力油発生ユニット 1からの圧力油が、 油戻し穴 1 7 bを通して 油貯留部 1 2に戻されるようになつている。  Also, an oil return hole 17b is formed in the spool valve 17a in the axial direction, and the spool valve 17a moves in the axial direction (leftward in FIG. 2) to allow the pressure oil passage 14 When the pressure is shut off, the pressure oil from the pressure oil generation unit 1 is returned to the oil reservoir 12 through the oil return hole 17b.
またこのスプール弁 1 7 aの外周には、 スプール弁 1 7 aを圧力油発生ュニット 本体 1 1から離間する方向へ付勢するスプール弁リターンスプリング 1 7 cが配 設されている。  A spool valve return spring 17c for urging the spool valve 17a in a direction away from the pressure oil generating unit main body 11 is provided on the outer periphery of the spool valve 17a.
圧力油発生ュニット 1の圧力油通過路 1 4の端部には、 圧力油発生ュニット本 体 1 1に連設して第 1のカップリング部 1 8が設けられている。 At the end of the pressure oil passage 14 of the pressure oil generation unit 1, the pressure oil generation unit A first coupling portion 18 is provided so as to be connected to the body 11.
第 1のカップリング部 1 8は、 圧力油発生ュニット本体 1 1から軸線方向に突 設されたシリンダ部 1 8 1を有する。 このシリンダ部 1 8 1の先端付近には、 円 周上に穿設された複数の貫通孔に、 複数の楕円形ピン 1 8 2がシリンダ部 1 8 1 の外方から内方に向けて移動自在に捜入配置されている。 また、 シリンダ部 1 8 1の外周部には、 カップリングスリーブ 1 8 3が軸方向に摺動可能に嵌合され、 このカツプリングスリーブ 1 8 3を軸方向に摺動させることにより、 前記複数の 楕円形ビン 1 8 2を外方からシリンダ部 1 8 1の内方に突出させたり、 内方から 外方へ自由移動できるようになつている。  The first coupling portion 18 has a cylinder portion 181 projecting from the pressure oil generating unit main body 11 in the axial direction. In the vicinity of the tip of the cylinder 181, a plurality of elliptical pins 182 move from the outside to the inside of the cylinder 181, through a plurality of through holes formed on the circumference. They are freely located. A coupling sleeve 183 is fitted to the outer peripheral portion of the cylinder portion 181 so as to be slidable in the axial direction. By sliding the coupling sleeve 183 in the axial direction, The elliptical bin 18 of the above is protruded from the outside to the inside of the cylinder 181, or can be freely moved from the inside to the outside.
シリンダ部 1 8 1の内方側には、 内部に圧力油通過路 1 4が形成された細長い 円柱状のガイ ド部材 1 8 4が設けられ、 このガイ ド部材 1 8 4の外周に圧力油通 過路 1 4をシールする中空円筒状のシール部材 1 8 5が軸方向に摺動可能に装着 されている。 このシール部材 1 8 5は、 ガイ ド部材 1 8 4の外周部に開けられた 圧力油通過路 1 4の出口を開閉するためのものであり、 圧力油発生ュニット 1が、 油圧作動工具 2又はホース 3と分離されている状態の時は、 シリンダ部 1 8 1内 に配設されたリターンスプリング 1 8 6により、 圧力油通過路 1 4の出口を閉鎖 する位置に移動しており、 圧力油発生ュニット 1からの油漏れを防く、ことができ る。 また、 油圧作動工具 2又はホース 3と接続された場合には、 リターンスプリ ング 1 8 6に抗して後退移動し、 ガイ ド部材 1 8 4の外周部に開けられた圧力油 通過路 1 4の出口を開放し、 圧力油の供給を可能にする。  On the inner side of the cylinder part 18 1, there is provided a slender cylindrical guide member 18 4 having a pressure oil passage 14 formed inside. A hollow cylindrical sealing member 185 for sealing the passage 14 is mounted slidably in the axial direction. The seal member 185 is for opening and closing the outlet of the pressure oil passageway 14 opened on the outer periphery of the guide member 184, and the pressure oil generating unit 1 is used for the hydraulic operating tool 2 or When the hose is separated from the hose 3, it is moved to the position where the outlet of the pressure oil passage 14 is closed by the return spring 1886 provided in the cylinder 181, and the pressure oil Oil leakage from the generating unit 1 can be prevented. When it is connected to the hydraulic operating tool 2 or the hose 3, it moves backward against the return spring 1886, and the pressure oil passage 14 opened in the outer periphery of the guide member 18 4 Open the outlet of, and enable the supply of pressure oil.
油圧作動工具 2は、 図 3に示すように、 中空円筒状のシリンダ本体 2 1と、 シ リンダ本体 2 1内に往復動可能に配設された圧力油により駆動されるビストン 2 2と、 このビストン 2 2の往復動により作動する作動機構 2 3と、 圧力油をビス トン 2 2の後端部に供給する圧力油供給路 2 4とから構成され、 圧力油供給路 2 4を取り囲むように第 2のカツプリング部 2 5が設けられている。  As shown in FIG. 3, the hydraulic working tool 2 includes a hollow cylindrical cylinder body 21, and a piston 2 2 driven by pressure oil disposed reciprocally in the cylinder body 21. An operating mechanism 23 that operates by reciprocation of the piston 22 and a pressure oil supply path 24 that supplies pressure oil to the rear end of the biston 22 are configured to surround the pressure oil supply path 24. A second coupling section 25 is provided.
この第 2のカップリング部 2 5は、 シリンダ本体 2 1の後端部を閉鎖するよう に、 シリンダ本体 2 1の後端部に固定され、 外方に突出する円柱部 2 5 1を備え ている。 円柱部 2 5 1の外経寸法は、 前記第 1のカップリング部 1 8のシリンダ 部 1 8 1の内怪寸法と同じであり、 円柱部 2 5 1がシリンダ部 1 8 1内に嵌合さ れるようになっている。 The second coupling part 25 includes a cylindrical part 25 1 fixed to the rear end of the cylinder body 21 and protruding outward so as to close the rear end of the cylinder body 21. I have. The outer diameter of the cylindrical portion 25 1 is the same as the inner dimension of the cylinder portion 18 1 of the first coupling portion 18, and the cylindrical portion 25 1 fits into the cylinder portion 18 1 Sa It is supposed to be.
円柱部 2 5 1の外周面には円周上に前記楕円形ピン 1 8 2と同数の凹部 2 5 2 が設けられ、 この凹部 2 5 2に楕円形ピン 1 8 2の先端が挿入可能とされている。 第 2のカツプリング部 2 5内の圧力油供給路 2 4の端部には、 チェックバルブ 2 5 3が配設され、 シリンダ本体 2 1内の油流出が防止されている。  The outer peripheral surface of the cylindrical portion 25 1 is provided on the circumference with the same number of concave portions 25 2 as the elliptical pins 18 2. Have been. A check valve 25 3 is provided at the end of the pressure oil supply passage 24 in the second coupling portion 25 to prevent oil from flowing out of the cylinder body 21.
シリンダ本体 2 1内には、 ピストン 2 2を原位置に復帰させるためのリターン スプリング 2 6が配設されている。  A return spring 26 for returning the piston 22 to its original position is provided in the cylinder body 21.
図 3においては、 油圧作動工具として、 こじ開け作業に用いるスプレッダ 2 3 0が示されている。 スプレッダ 2 3 0は、 一対のこじ開け用爪部材 2 3 1を備え、 この爪部材 2 3 1は、 その後端部がそれそれピン 2 3 2によりシリンダ本体 2 1 に枢着されている。 そして、 このような構成により、 ピストン 2 2が圧力油で前 進移動 （図 1では左方向移動） すれば、 ピストン 2 2に押されて、 一対の爪部材 2 3 1が、 互いに離れる方向に回動し、 こじ開け作業がなされる。  FIG. 3 shows a spreader 230 used for a prying operation as a hydraulic operating tool. The spreader 230 has a pair of prying pawl members 231, the rear ends of which are pivotally attached to the cylinder body 21 by pins 232, respectively. With such a configuration, when the piston 22 moves forward with the pressure oil (moves to the left in FIG. 1), the piston 22 pushes the pair of claw members 2 3 1 in a direction away from each other. It rotates and prying work is performed.
ホース 3は、 図 4に示すように、 高圧に耐えられる強度を有する可撓性部材に より成形され、 内部に圧力油発生ュニット 1から油圧作動工具 2へ圧力油を供給 する油通路 3 1が形成されている。  As shown in FIG. 4, the hose 3 is formed of a flexible member having strength capable of withstanding high pressure, and has an oil passage 31 for supplying pressure oil from the pressure oil generating unit 1 to the hydraulic working tool 2 therein. Is formed.
また、 ホース 3の両端部には、 前記第 1のカヅプリング部 1 8と第 2のカヅプ リング部 2 5とにそれそれ接続可能な第 3のカップリング部 3 2及び第 4のカツ プリング部 3 4が設けられている。  Further, at both ends of the hose 3, a third coupling part 32 and a fourth coupling part 3 connectable to the first coupling part 18 and the second coupling part 25, respectively. 4 are provided.
すなわち、 第 3のカップリング部 3 2は、 第 2のカップリング部 2 5と接続可 能であり、 第 4のカップリング部 3 4は、 第 1のカップリング部 1 8と接続可能 である。  That is, the third coupling part 32 can be connected to the second coupling part 25, and the fourth coupling part 34 can be connected to the first coupling part 18 .
従って、 第 3のカップリング部 3 2は、 基本的に第 1のカップリング部 1 8と 同一の形状構造をしており、 また、 第 4のカップリング部 3 4は、 基本的に第 2 のカツプリング部 2 5と同一の形状構造をしている。  Therefore, the third coupling part 32 has basically the same shape and structure as the first coupling part 18, and the fourth coupling part 34 basically has the second coupling part 34. It has the same shape and structure as the coupling portion 25 of FIG.
第 3の力ップリング部 3 2は、 第 1のカツプリング部 1 8と同様、 中空円筒状 のシリンダ部 3 2 1を有し、 このシリンダ部 3 2 1の先端部付近に複数の楕円形 ピン 3 2 2がシリンダ部 3 2 1の内方へ移動可能に挿入配置されている。 また、 シリンダ部 3 2 1の外周側に、 楕円形ピン 3 2 2を内方へ移動させるカツプリン グスリーブ 3 2 3が軸方向に摺動可能に装着されている。 The third force coupling portion 32 has a hollow cylindrical cylinder portion 321, similar to the first coupling portion 18, and has a plurality of elliptical pins 3 near the distal end of the cylinder portion 321. 22 is inserted and arranged so as to be able to move inside the cylinder section 3 2 1. Also, on the outer peripheral side of the cylinder part 3 21, a cut pudding that moves the elliptical pin 3 22 inward The sleeve 3 2 3 is mounted slidably in the axial direction.
シリンダ部 3 2 1の内部には、 細長い円柱状のガイ ド部材 3 2 4が設けられ、 このガイ ド部材 3 2 4の外周に油通路 3 1をシールする中空円筒状のシール部材 3 2 5が軸方向に摺動可能に装着されている。 また、 シール部材 3 2 5を閉鎖位 置に保持するリタ一ンスプリング 3 2 6が、 シリンダ部 3 2 1内に配設されてい る o  An elongated cylindrical guide member 3 24 is provided inside the cylinder portion 3 21. A hollow cylindrical seal member 3 2 5 for sealing the oil passage 31 around the guide member 3 24 is provided. Are slidably mounted in the axial direction. Further, a return spring 326 for holding the sealing member 325 in the closed position is provided in the cylinder portion 3221.o
第 3のカップリング部 3 2のシリンダ部 3 2 1の後端部は、 操作者が保持可能 な円柱形状の保持部 3 2 7に接合され、 この保持部 3 2 7内を油通路 3 1が貫通 形成されている。 そして保持部 3 2 7には、 この油通路 3 1を横切って貫通する 貫通穴 3 2 8が穿設され、 貫通穴 3 2 8には、 円柱状の開閉バルブ 3 2 9が摺動 可能に挿入されている。  The rear end of the cylinder portion 3 2 1 of the third coupling portion 3 2 is joined to a cylindrical holding portion 3 27 that can be held by an operator, and the inside of the holding portion 3 27 is an oil passage 3 1 Are formed through. A through hole 328 penetrating through the oil passage 31 is formed in the holding section 327, and a cylindrical opening / closing valve 329 is slidable in the through hole 328. Has been inserted.
この開閉バルブ 3 2 9は、 油通路 3 1を閉鎖、 開放するもので、 途中部分に油 通路 3 1を連通させる貫通穴 3 3 1が、 開閉バルブ 3 2 9の軸線方向に直行して 穿設され手いる。 また、 保持部 3 2 7の外側に突出している開閉バルブ 3 2 9の 外周部にはスプリング 3 3 2が装着され、 通常は、 開閉バルブ 3 2 9の貫通穴 3 3 1が、 油通路 3 1と整合しない位置、 すなわち開閉バルブ 3 2 9が油通路 3 1 を閉鎖する位置にあるよう保持している。  The on-off valve 329 closes and opens the oil passage 31, and a through-hole 331 communicating the oil passage 31 at an intermediate portion thereof is formed by drilling in a direction perpendicular to the axial direction of the on-off valve 329. It is established. Also, a spring 332 is mounted on the outer periphery of the opening / closing valve 329 protruding outside the holding section 327. Normally, a through hole 331 of the opening / closing valve 329 The opening and closing valve 3 29 is held at a position that does not match with 1, that is, a position where the oil passage 3 1 is closed.
第 4のカップリング部 3 4は、 第 2のカップリング部 2 5と同様、 第 1のカツ プリング部 1 8のシリンダ部 1 8 1の内径と同一の外形寸法を有する円柱部 3 4 1を有し、 この円柱部 3 4 1の外周面には円周上に、 前記楕円ピン 1 8 2と同数 の凹部 3 4 2が設けられ、 この凹部 3 4 2に楕円ピン 1 8 2の先端が挿入可能と されている。  Like the second coupling part 25, the fourth coupling part 34 includes a cylindrical part 341, which has the same outer dimensions as the inner diameter of the cylinder part 18 1 of the first coupling part 18. On the outer peripheral surface of the cylindrical portion 341, the same number of concave portions 342 as the elliptical pins 182 are provided on the circumference. It can be inserted.
また、 第 4のカップリング部 3 4内の油通路 3 1の端部には、 チェックバルブ A check valve is provided at the end of the oil passage 31 in the fourth coupling portion 34.
3 4 3が配設され、 ホース 3内の油流出が防止されている。 3 4 3 is provided to prevent oil spill in hose 3.
次に、 このような構成からなる本発明の実施態様の作用について説明する。 事故現場などで油圧作動装置を使用する際、 作業する場所が狭いときは、 図 1 に示すように、 ホース 3を用いて圧力油発生ュニッ ト 1と油圧作動工具 2とを接 続し、 作業者は、 油圧作動工具 2とホース 3の先端部を持って油圧作動工具 2を 作業場所に移動配置する。 開閉バルブ 3 2 9を手動操作して、 油通路 3 1の出口を閉鎖する位置に動かし、 その状態で他の作業者が圧力油発生ュニッ ト 1の電動モー夕 1 6を駆動する。 電 動モー夕 1 6の駆動により、 油圧発生機構 1 3が作動し、 油貯留部 1 2内の油が 吸引加圧され、 圧力油となって圧力油通過路 1 4に送られる。 Next, the operation of the embodiment of the present invention having such a configuration will be described. When using a hydraulic actuator at an accident site, etc., when the working area is small, connect the pressure oil generating unit 1 and the hydraulic operating tool 2 using a hose 3 as shown in Fig. 1 The worker holds the hydraulic working tool 2 and the end of the hose 3 and moves and arranges the hydraulic working tool 2 to the work place. The opening / closing valve 329 is manually operated to move the outlet of the oil passage 31 to a position where the oil passage 31 is closed. In this state, another operator drives the electric motor 16 of the pressure oil generating unit 1. When the electric motor 16 is driven, the hydraulic pressure generating mechanism 13 is operated, and the oil in the oil reservoir 12 is suctioned and pressurized, and is sent to the pressure oil passage 14 as pressure oil.
圧力油が圧力油 ffi過路 1 4から油通路 3 1に充填された時点で、 前方部にいる 作業者が開閉バルブ 3 2 9を移動し、 油通路 3 1の出口を開放すると、 圧力油が 圧力油供給路 2 4を通って油圧作動工具 2のシリンダ本体 2 1内に流入し、 ビス トン 2 2を前進移動させる。 これにより、 作動機構 2 3が作動し、 スプレッダ 2 3 0の爪部材 2 3 1が開放する方向に回動し、 こじ開け作業がなされる。  When the pressure oil is filled into the oil passage 3 1 from the pressure oil ffi passage 14, the worker at the front moves the opening / closing valve 3 29 to open the outlet of the oil passage 31, and the pressure oil is released. The fluid flows into the cylinder body 21 of the hydraulic working tool 2 through the pressure oil supply passage 24, and the biston 22 is moved forward. As a result, the operating mechanism 23 is operated, and the pawl member 2 31 of the spreader 230 is rotated in the opening direction, thereby performing a prying operation.
また、 スプレッダ 2 3 0を開いた状態 （こじ開けた状態） に保持する場合には、 開閉パ レブ 3 2 9を前方部にいる作業者が移動操作し、 油通路 3 1の出口を閉鎖 する。 これにより、 圧力油がシリンダ本体 2 1内に密封された状態になるので、 ピストン 2 2の停止位置が維持され、 こじ開け状態が保持される。 また、 後方の 作業者が電動モー夕 1 6を停止した場合でも、 こじ開けた状態を保持でき、 例え ば足などを挾まれた人の救出作業が支障を来すことがない。  In addition, when the spreader 230 is held in an open state (pry open state), an operator in front of the open / close pallet 329 moves and closes the outlet of the oil passage 31. As a result, the pressure oil is sealed in the cylinder body 21, so that the stop position of the piston 22 is maintained, and the prying state is maintained. In addition, even if the rear worker stops the electric motor 16, the prying state can be maintained, and, for example, the rescue work of a person who has a leg or the like is not hindered.
このように、 作業現場に最も近い作業者が、 後方の作業者に指示しなくても独 自の判断でスプレッダ 2 3 0の開放、 開放位置で固定する操作を行うことができ、 事故にあつた人の救出を効果的に実施できる上できわめて有効である。  In this way, the worker closest to the work site can perform the operation of opening and fixing the spreader 230 at the open position at its own discretion without instructing the workers behind it, It is extremely effective in effectively rescuing a person.
作業を停止する場合には、 開閉バルブ 3 2 9を油通路 3 1と圧力油供給路 2 4 が連通する位置に移動させ、 電動モ一夕 1 6を停止し、 圧力油を油貯留部 1 2に 戻す。 これにより、 シリンダ本体 2 1内の油圧が低下し、 リターンスプリング 2 6により、 ピストン 2 2が元の位置に復帰し、 スプレッダ 2 3 0の一対の爪部材 2 3 1が閉じる方向に回動する。  To stop work, move the on-off valve 3 29 to a position where the oil passage 31 communicates with the pressure oil supply passage 24, stop the electric motor 16 and store the pressure oil in the oil storage 1 Return to 2. As a result, the hydraulic pressure in the cylinder body 21 decreases, the return spring 26 returns the piston 22 to the original position, and the pair of pawl members 2 31 of the spreader 230 rotates in the closing direction. .
ここで、 ホース 3を用いて圧力油発生ュニット 1と油圧作動工具 2とを接続す る方法について説明する。  Here, a method of connecting the pressure oil generating unit 1 and the hydraulic operating tool 2 using the hose 3 will be described.
まず、 圧力油発生ュニット 1の第 1のカップリング部 1 8に対し、 ホース 3の 第 4のカヅプリング部 3 4を接続する場合は、 第 4のカップリング部 3 4の円柱 部 3 4 1を第 1のカップリング部 1 8のシリンダ部 1 8 1に挿入する。 この挿入 は、 カップリングスリーブ 1 8 3を後方移動 （図 2では右方向移動） し、 楕円形 ピン 1 8 2を開放した状態で行う。 First, when connecting the fourth coupling part 34 of the hose 3 to the first coupling part 18 of the pressure oil generating unit 1, the cylindrical part 34 1 of the fourth coupling part 34 must be connected. It is inserted into the cylinder part 18 1 of the first coupling part 18. This insertion moves the coupling sleeve 18 3 backward (to the right in Fig. 2), Perform with pin 18 open.
円柱部 3 4 1をシリンダ部 1 8 1に挿入すると、 円柱部 3 4 1に押されてシ一 ル部材 1 8 5が後退し、 圧力油通過路 1 4の出口が開放される。 これにより、 圧 力油発生ュニット 1の圧力油通過路 1 4とホース 3の油通路 3 1とが連通する。 円柱部 3 4 1を挿入後、 カップリングスリーブ 1 8 3を元の位置に戻す （図 2 では左方向に移動する） と、 カップリングスリーブ 1 8 3の内壁で楕円形ピン 1 8 2がシリンダ部 1 8 1内方向に押し出され、 先端部が円柱部 3 4 1の外周面に 設けられた凹部 3 4 2に進入する。 これにより円柱部 3 4 1がシリンダ部 1 8 1 内に固定保持される。  When the cylindrical portion 341 is inserted into the cylinder portion 181, the sealing member 185 is pushed back by the cylindrical portion 341 and the outlet of the pressure oil passage 14 is opened. Thereby, the pressure oil passage 14 of the pressure oil generating unit 1 and the oil passage 31 of the hose 3 communicate with each other. After inserting the cylindrical part 3 4 1, return the coupling sleeve 1 8 3 to its original position (moving to the left in Fig. 2), and the oval pin 18 2 The part 18 1 is pushed inward, and its tip enters the concave part 34 2 provided on the outer peripheral surface of the cylindrical part 34 1. As a result, the cylindrical portion 341 is fixedly held in the cylinder portion 181.
油圧作動工具 2とホース 3との接続も同様に、 油圧作動工具 2の第 2のカップ リング部 2 5をホース 3の第 3の力ヅプリング部 3 2に挿入することによりなさ れる 0 ' Similarly, the connection between the hydraulic operating tool 2 and the hose 3 is made by inserting the second coupling part 25 of the hydraulic operating tool 2 into the third force coupling part 32 of the hose 3 0 '
すなわち、 カップリングスリーブ 3 2 3を後退移動した状態で円柱部 2 5 1を シリンダ部 3 2 1内に挿入し、 楕円形ピン 3 2 2の先端部を凹部 2 5 2に挿入し て、 両者を固定する。 また、 円柱部 2 5 1が挿入されることにより、 シール部材 3 2 5が後退移動し、 油通路 3 1と圧力油供給路 2 4とが連通される。  That is, with the coupling sleeve 3 2 3 moved backward, the cylindrical portion 2 51 is inserted into the cylinder portion 3 2 1, and the tip of the oval pin 3 2 2 is inserted into the concave portion 2 5 Is fixed. Further, when the cylindrical portion 25 1 is inserted, the seal member 3 25 moves backward, and the oil passage 31 and the pressure oil supply passage 24 are communicated.
事故現場等の状況で、 本実施の態様による油圧作動装置を一人の作業者が操作 して使用する場合には、 ホース 3を用いないで、 圧力油発生ユニット 1と油圧作 動工具 2とを直接接合して使用する。  In a situation such as an accident scene, when one operator operates and uses the hydraulic operating device according to the present embodiment, the pressure oil generating unit 1 and the hydraulic operating tool 2 are connected without using the hose 3. Use with direct bonding.
この場合には、 上記した操作と逆の操作によりそれそれのカップリング接合を 解除し、 第 1のカップリング部 1 8と第 2のカップリング部 2 5とを直接接合す る。 第 1のカップリング部 1 8と第 3のカツプリング部 3 2とは基本的に同一形 状をしており、 また、 第 2のカップリング部 2 5と第 4のカップリング部 3 4と は基本的に同一形状をしているので、 上記したと同一の操作により第 1のカップ リング部 1 8と第 2のカップリング部 2 5とを直接接合することができる。 第 4のカヅプリング部 3 4を第 1のカツプリング部 1 8から分離した際、 第 4 のカップリング部 3 4のチェックバルブ 3 4 3により、 油通路 3 1が遮断され、 ホース 3内の油の漏洩が遮断される。 また、 スプール弁 1 7 aがスプール弁リタ ーンスプリング 1 Ί cにより軸線方向 （図 1において左方向） に移動しているの で、 圧力油通過路 1 4が遮断されると共に、 油発生ュニッ ト 1からの圧力油は、 油戻し穴 1 7 bを通して油貯留部 1 2に戻され、 たとえ 油発生ユニッ ト 1が作 動していても、 圧力油が第 1の力ップリング部 1 8から噴出することはない。 図 5は、 この圧力油発生ュニッ ト 1と油圧作動工具 2とが直接接合された状態 を示す図である。 In this case, the coupling connection is released by the operation opposite to the above operation, and the first coupling portion 18 and the second coupling portion 25 are directly connected. The first coupling part 18 and the third coupling part 32 have basically the same shape, and the second coupling part 25 and the fourth coupling part 34 are different from each other. Since they have basically the same shape, the first coupling portion 18 and the second coupling portion 25 can be directly joined by the same operation as described above. When the fourth coupling portion 34 is separated from the first coupling portion 18, the oil passage 31 is shut off by the check valve 3 43 of the fourth coupling portion 34, and the oil in the hose 3 is removed. Leaks are shut off. Also, the spool valve 17a is moved in the axial direction (left direction in Fig. 1) by the spool valve return spring 1 1c. At this time, the pressure oil passage 14 is shut off, and the pressure oil from the oil generating unit 1 is returned to the oil reservoir 12 through the oil return hole 17b, for example, the oil generating unit 1 is activated. Pressure oil does not spill out of the first force coupling 18. FIG. 5 is a view showing a state where the pressure oil generating unit 1 and the hydraulic operating tool 2 are directly joined.
この使用態様で油圧作動装置を用いる場合には、 前記したと同様に電動モ一夕 1 6を駆動し、 圧力油を発生させ、 油圧作動工具 2へ供給することにより、 スプ レッダ 2 3 0を開放方向に回動する。  When the hydraulic actuator is used in this usage mode, the electric motor 16 is driven in the same manner as described above to generate pressure oil, and the oil is supplied to the hydraulic operating tool 2 so that the spreader 230 is driven. Rotate in the opening direction.
こじ開けた状態を保持する場合には、 操作レバ一 1 7を手動操作し、 スプール 弁 17aを軸方向に移動させ、 圧力油通過路 1 4を遮断する。 これにより、 電動モ —夕 1 6を停止した場合でも、 圧力油が油貯留部 1 2に逆流することが防止され、 こじ開けた状態が保持される。  To maintain the open state, manually operate the operation lever 17 to move the spool valve 17a in the axial direction and shut off the pressure oil passage 14. As a result, even when the electric motor 16 is stopped, the pressure oil is prevented from flowing back to the oil reservoir 12 and the open state is maintained.
本実施の態様では、 油圧作動工具 2としてスブレッダ 2 3 0を用いた例を示し たが、 この他にも例えば、 鉄筋カツ夕、 板金カツ夕等各種の作動工具を用途に応 じて適宜交換使用することができる。  In this embodiment, an example in which the threader 230 is used as the hydraulic working tool 2 has been described. In addition to this, for example, various working tools such as a steel cutting tool, a sheet metal cutting tool, and the like are appropriately replaced according to the application. Can be used.
以上説明したように、 本実施の態様によれば、 圧力油発生ユニット 1と油圧作 動工具 2とを備えた油圧作動装置を、 ホース 3を用いて油圧作動工具 2を圧力油 発生ュニット 1から分離した状態で使用することができ、 圧力油発生ュニッ ト 1 が邪魔になって入り込めないような狭い作業場所にも油圧作動工具 2を移動配置 して作業することができる。  As described above, according to the present embodiment, the hydraulic operating device including the pressure oil generating unit 1 and the hydraulic operating tool 2 can be moved from the hydraulic oil generating unit 1 using the hose 3 to the hydraulic operating tool 2. It can be used in a separated state, and the hydraulic working tool 2 can be moved and arranged to work in a narrow work place where the pressure oil generating unit 1 is in the way and cannot enter.
また、 作業者を二人に分け、 前方の作業者が油圧作動工具 2を用いて作業する 場合、 第 3のカップリング部 3 2に設けられた開閉バルブ 3 2 9を操作して、 後 方の作業者とは独立して油圧作動工具 2を作動することができ、 救出作業等を効 果的に行うことができる。 特に、 スプレッダ 2 3 0を用いてこじ開け作業を行う 場合、 こじ開けた状態を前方の作業者のみの操作で保持することができ、 後方の 作業者と連絡が採りにくい場合でも、 作業を安全確実に行うことができる。  Also, when the worker is divided into two persons and the front worker works using the hydraulic operating tool 2, the open / close valve 32 9 provided on the third coupling part 32 is operated to The hydraulic working tool 2 can be operated independently of the first worker, and rescue work and the like can be performed effectively. In particular, when performing the prying operation using the spreader 230, the prying state can be maintained by the operation of only the front worker, and even if it is difficult to communicate with the rear worker, the work can be performed safely and securely. It can be carried out.
また、 一人の作業者で使用するときは、 ホース 3を外し、 油圧作動工具 2を圧 力油発生ユニット 1に直接接続して使用することができる。 この場合には、 作業 者がハンドグリップ 1 5を片手で把持し、 他方の手で油圧作動工具 2のシリンダ 本体 2 1を把持して作業することができる。 In addition, when used by one worker, the hose 3 can be removed and the hydraulic operating tool 2 can be directly connected to the hydraulic oil generating unit 1 for use. In this case, the operator holds the handgrip 15 with one hand and the cylinder of the hydraulic power tool 2 with the other hand. The user can work while holding the main body 21.
なお、 本実施例においては、 スプール弁 1 7 aを図において左方向に移動させ ることにより、 圧力油通過路 1 4を遮断する構造を示したが、 スプール弁 1 7 a の外周に形成されるスプール溝を変更することにより、 スプール弁 1 7 aを図に おいて右方向に移動させることにより、 圧力油通過路 1 4を遮断する構造とする こともできる。 この様な構造にすれば、 例えば第 1のカップリング部 1 8のカツ プリングスリーブ 1 8 3を、 分離のために、 図において右方向に移動させた際、 その端部でスプール弁 1 7 aを右方向に移動させることにより、 圧力油通過路 1 4を遮断を遮断すると共に、 油発生ユニッ ト 1からの圧力油を、 油戻し穴 1 7 b を通して油貯留部 1 2に戻すことができる。 産業上の利用可能性  In the present embodiment, the structure in which the spool valve 17a is moved to the left in the drawing to block the pressure oil passage 14 is shown, but it is formed on the outer periphery of the spool valve 17a. By changing the spool groove, the pressure oil passage 14 can be shut off by moving the spool valve 17a rightward in the figure. With such a structure, for example, when the coupling sleeve 18 3 of the first coupling portion 18 is moved rightward in the drawing for separation, the spool valve 17 a By moving to the right, the pressure oil passage 14 can be shut off and the pressure oil from the oil generation unit 1 can be returned to the oil reservoir 12 through the oil return hole 17 b. . Industrial applicability
以上説明したように、 本発明によれば、 圧力油発生ユニッ トが邪魔になって、 必要箇所へ油圧作動工具を移動配置することができないような場合には、 圧力油 発生ュニッ 卜と油圧作動工具とを分離し、 それそれを可撓性のホースで接続し、 油圧作動工具のみを必要箇所へ移動配置することができる。 そしてこのような場 合には、 通常二人の作業者が共同で作業することになるが、 油圧作動工具を保持 した作業者は、 ホースの他端部に設けられた第 4のカツプリング内の油通路を開 閉する手動の開閉手段を操作して、 圧力油発生ュニットを保持する作業者とは独 立して油圧作動工具の作動を制御することができる。  As described above, according to the present invention, when the pressure oil generating unit is in the way and it is not possible to move and arrange the hydraulic operating tool to a required location, the pressure oil generating unit and the hydraulic operating The tool can be separated from the tool, connected with a flexible hose, and only the hydraulically operated tool can be moved to the required location. In such a case, two workers usually work together.However, the worker holding the hydraulic working tool is required to work within the fourth coupling provided at the other end of the hose. By operating the manual opening / closing means for opening / closing the oil passage, the operation of the hydraulic working tool can be controlled independently of the operator holding the pressure oil generating unit.
また、 一人の作業者で作業するときは、 圧力油発生ユニッ トと油圧作動工具と を直接接続し、 油圧作動装置を使用することができる。  Also, when working by one worker, the hydraulic operating device can be used by directly connecting the pressure oil generating unit and the hydraulic operating tool.
さらに本発明は、 スプール弁に圧力油を油貯留部に戻す戻し穴を設けたことによ り、 圧力油発生ユニットを分離する際、 たとえ圧力油発生ユニッ トが作動してい ても、 圧力油が噴出することを自動的に防止することができる。 Further, according to the present invention, when the pressure oil generation unit is separated by providing the return hole for returning the pressure oil to the oil storage portion in the spool valve, even if the pressure oil generation unit is operating, the pressure oil can be removed. Can be automatically prevented from spouting.
本発明は、 事故現場で救出作業を行う装 として用いる場合、 作業効率を向上 させ、 特に優れた効果を奏する。  INDUSTRIAL APPLICABILITY The present invention, when used as a device for performing rescue work at an accident site, improves work efficiency and exhibits particularly excellent effects.

Claims

請 求 の 範 囲 The scope of the claims
1 . 油貯留部と、 この油貯留部に貯留された油を加圧し圧力油を発生させる 油圧発生機構と、 この圧力油が通過する圧力油通過路とを備えた携帯可能な圧力 油発生ュニッ トと ； 1. A portable pressure oil generating unit having an oil reservoir, a hydraulic pressure generating mechanism that pressurizes the oil stored in the oil reservoir to generate pressure oil, and a pressure oil passage through which the pressure oil passes. And
圧力油発生ュニッ卜から発生された圧力油で往復動するビストンにより駆動さ れる作動機構と、 圧力油をビストンへ供給する圧力油供給路とを備えた携帯可能 な油圧作動工具と ；  A portable hydraulic operating tool having an operating mechanism driven by a piston reciprocating with pressure oil generated from a pressure oil generating unit, and a pressure oil supply path for supplying pressure oil to the piston;
前記圧力油発生ュニッ 卜の圧力油通過路と油圧作動工具の圧力油供給路とを互 いに接続し、 圧力油発生ュニットから油圧作動工具へ圧力油を供給する油通路の 形成された可撓性のホースと ；  The pressure oil passage of the pressure oil generating unit and the pressure oil supply passage of the hydraulic working tool are connected to each other, and a flexible passage having an oil passage for supplying pressure oil from the pressure oil generating unit to the hydraulic working tool is formed. Sex hose;
からなる油圧作動装置において、 In the hydraulic actuator consisting of
圧力油発生ュニットの圧力油通過路の端部には第 1のカップリング部が設けら れ、 油圧作動工具の圧力油供給路の端部には第 2のカツプリング部が設けられ、 前記ホースの一端部には前記第 1のカップリング部と同一形状の第 3のカツプリ ング部が設けられ、 他端部には前記第 2のカップリング部と同一形状の第 4の力 ップリング部が設けられ、  A first coupling portion is provided at an end of the pressure oil passage of the pressure oil generating unit, and a second coupling portion is provided at an end of the pressure oil supply passage of the hydraulic working tool. One end is provided with a third coupling portion having the same shape as the first coupling portion, and the other end is provided with a fourth force coupling portion having the same shape as the second coupling portion. ,
前記第 1のカップリング部と第 2のカップリング部とは着脱可能であると共に、 前記第 3のカップリング部と第 2のカップリング部および前記第 4のカップリン グ部と第 1のカップリング部とはそれそれ着脱可能であることを特徴とする油圧 作動装置。  The first coupling part and the second coupling part are detachable, and the third coupling part and the second coupling part, and the fourth coupling part and the first coupling part. A hydraulic actuating device characterized by being detachable from the ring.
2 . 第 3のカツプリング内には前記油通路を開閉する手動の開閉手段が設け られていることを特徴とする油圧作動装置。 2. A hydraulic actuating device, wherein a manual opening / closing means for opening / closing the oil passage is provided in the third coupling.
3 . 圧力油通過路には、 圧力油を油圧作動工具側へ供給又は供給停止するた めのスプール弁が設けられ、 前記スプール弁には圧力油発生ュニッ卜からの圧力 油を油貯留部に戻す戻し穴が設けられていることを特徴とする油圧作動装置。 3. A spool valve for supplying or stopping the supply of the pressure oil to the hydraulic working tool is provided in the pressure oil passage, and the spool valve supplies the pressure oil from the pressure oil generation unit to the oil reservoir. A hydraulic operating device having a return hole for returning.
PCT/JP2003/001064 2002-02-01 2003-02-03 Hydraulic operating unit WO2003064091A1 (en)

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JP2002025726A JP2005201285A (en) 2002-02-01 2002-02-01 Hydraulic actuation device

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NO20120754A1 (en) * 2012-06-28 2013-12-30 Trackson As MULTI TOOLS
CN107401559A (en) * 2017-01-06 2017-11-28 株式会社小仓 Hydraulic work device and moment of torsion transmission connecting piece
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