Abstract: A spur-gear mechanism, especially a bevel spur-gear mechanism, having one or more transmission stages is provided. The transmission stages are accommodated in a gear mechanism housing having two side surfaces and two base surfaces. Guided out of the gear mechanism housing is a drive shaft on which is fixedly secured, beyond a housing, an axial fan wheel. A spacer flange for connection to a motor spacer is formed on the gear mechanism housing. The spacer flange is provided with central openings in an extension of the base surfaces and with lateral openings in an extension of the side surfaces.

Abstract: The performance of a worm assembly seal is improved by (1) the use of a hardened steel worm with a bronze worm gear; (2) the use of a hardened steel worm and a bronze worm gear with a tribological coating on one or both of the worm thread or spiral and the gear teeth; 3) the use of a hardened steel worm and a bronze worm gear with a tribological coating on one or both of the input or output shaft or shaft sleeves; or (4) the use of a hardened steel worm with a bronze worm gear with a tribological coating applied to the worm thread, the gear teeth, the input and output shafts or shaft sleeves, or combinations thereof. In each of the three approaches, the worm, worm gear, and input and output shafts or shaft sleeves can have surface finishing treatments. Additionally, in each of the three approaches, carbon or carbon/nitrogen concentration gradients can be added to the worm.

Abstract: The invention concerns a gear motor (1), in particular for driving vehicle equipment, comprising a rotor provided with a rotor shaft (6), a reduction gearbox housing (14) containing a cog wheel engaged in an endless screw of the shaft and capable of driving an output member (12). The invention is characterised in that it comprises means (12) for eliminating, under predetermined axial compression (F), all axial play between one end (6a) of the rotor shaft and the housing wall (13). Said means can comprise a plug (15) housed in the housing (14) end (13) and a piston (18), inserted between the plug (15) and the shaft (6) end (6a); the plug (15) exerts on the piston (18) and the shaft (6) the axial thrust (7) which is adjusted when being mounted, and is axially locked in the corresponding position by melting the housing (14) plastic material in the grooves or recesses (19) of the piston (18) surface, then in solidifying said plastic material.

Abstract: A control lever assembly having a moveable lever and a knob mounted on an end of the lever. The knob has a hollow housing which is removably attached to a cylindrical base. The housing has a cylindrical side wall which forms an opening. A wheel is received in and partially enclosed by the housing for rotation therein. A portion of the housing completely surrounds an outer surface of one end of the wheel. A rotary encoder generates a rotary position signal and is coupled to the wheel by a stiff wire or shaft. The shaft extends through the wheel to a first end which is received by an alignment recess formed on an inner surface of the housing and to a second end which is coupled to the encoder. The shaft extends through a bore in the base and through a bore in the lever.

Abstract: The present invention provides a cost-effective device that emulates the operation of the actual vehicle assist devices and interfaces with both consumer computer game software for high fidelity on-road traffic simulation and consumer game controller with its standard television display connected to a consumer force feedback steering wheel controller. The invention which emulates the actual vehicle hand controls replaces the standard game type brake and accelerator pedals. The use of a invention for accelerator and brake while game playing allows handicapped people to learn how to operate the device that they will eventually use in a real vehicle or assist in improving upon the neuromuscular skills that they currently use while driving a handicapped adapted vehicle. This device will facilitate safer and more effective training by driver's instructors for the handicapped individual before they have to face a real-world driving scenario and provide enhanced recreational opportunities.

Abstract: A device for positioning a component part in an inclined position, having a mounting support unit which is accommodated in a support of a base for tilting about at least one axis of the component part, and having an actuator unit which tilts the mounting support unit at a specified angle of inclination about the at least one axis of the component part, the mounting support having at least one coupling element which is supported on at least one counter-support of the actuator unit, which is movable relative to the at least one coupling element, in order to position the mounting support unit with the component part in the inclined position.

Abstract: A steering column is attached to a fixing bracket of a vehicle body through a support bracket such that the steering column is inclined with respect to a vertical plane perpendicular to the width direction of the vehicle body. A guide plate is attached to one of both side portions of the fixing bracket. The one side portion is located on the side toward which the rear portion of the steering column is inclined. When the support bracket moves due to external force acting thereon, the guide plate restricts movement of the support bracket in the width direction of the vehicle body to permit the steering column to move toward the front of the vehicle body while at the same time suppressing swaying motion of the steering column, thereby stabilizing the load at the time of absorption of impact.

Abstract: An axle assembly includes a first and a second electric motor which drive a gearbox assembly substantially therebetween. A proper gear teeth contact pattern between the electric motor drive gears and a ring gear is obtained by adjusting electric motor housing portions relative a main housing portion.

Abstract: A supply recycling system for recycling supply goods used in an office-automation equipment includes a toner refilling process including removing waste toner from a toner bottle retrieved from a market, and filling the toner bottle with new toner; and a steelmaking-dust molding process including blending the waste toner removed at the toner refilling process with steelmaking dust, and molding the steelmaking dust blended with the waste toner.

Abstract: The invention concerns a powder metallurgical composition comprising a major amount of an iron-based metal powder and a minor amount of carbon black. The amount of carbon black is between 0.001 and 0.2% by weight, preferably between 0.01 to 0.1% by weight.

Abstract: The invention relates to a method for removing silver from a chloride solution in a copper recovery process. According to this method, silver is removed using fine-grained copper powder and mercury. Silver removal occurs in at least two stages and mercury is fed into the solution at a certain molar ratio with regard to the silver in the solution.

Abstract: The unit comprises a first grinding wheel (81) and a second grinding wheel (83) acting on a first side (207) and on a second side (209) of the bevel (205) of the blade (19). The first grinding wheel (81) has a finer grain than the second grinding wheel (83). Moreover, the first grinding wheel also has an inclination that is not parallel to the respective first side (207) of the bevel (205) of the blade (19), while the second grinding wheel (83) has an inclination essentially parallel to the second side (209) of said bevel.

Abstract: A knife sharpening system includes a plurality of sharpening units, each performing a different sharpening operation, which are individually mountable on a base for alternate use. One of those units may be a knife edge former which is adjustable to produce edges of preselected different sharpness angles, and which is capable of use independently or as a part of said system.

Abstract: An improved utensil such as a knife is produced by forming integrally with the blade or other working part a tang which ultimately constitutes a substantial portion of the knife-handle including the outer hand-engaged surface of the handle, and providing the tang with an attached cover which constitutes the remainder of the utensil handle.

Abstract: A tool having: (a) an inner-surface defining a hollow extending within the tool and sized to accept the stem at an end-port of the hollow and to permit a sliding of the hollow along the stem; (b) an integral handle having a grip surface around at least a portion of the hollow; and (c) at one end of the tool and located a distance, dN, from the handle, is an integral barbed-end comprising a plurality of barbs, each barb having a length of sharp edge. The length of sharp edge of a barb is disposed between a tapered surface and a blade surface oriented generally orthogonal to the inner-surface of the hollow such that the blade surface will contact the flexible packing for removal. The tool can also have an integral second barbed-end. Each of the barbs of a barbed-end can be curve-tooth shaped; or a barbed-end can have a plurality of barbs arranged such that each of the tapered surfaces is concentrically oriented along an axis of the inner-surface.

Abstract: An engaging device of a sleeve-form wrench comprises a spanner body and a sleeve. On an outer peripheral surface of the coupling shaft, a plurality of convex buckling portions and concave surface portions are arranged along an axial periphery of the coupling shaft; the convex buckling portions and concave surface portions have cambered shapes and are connected one by one; an inner wall of the sleeve is formed with concave arc portions with respect to the convex buckling portions and convex arc portions with respect to the concave surface portion so that the coupling shaft are inserted thereinto. By above structure the spanner body and the sleeve are combined tightly; moreover, the sleeve suffers a larger twisting force from the spanner body and the stress distributes uniformly.

Abstract: A selective one-way wrench includes an annular head comprising a first space defined therein, a second space communicated with the first space and a third space communicated with the second space. A gear is put rotationally in the first space. A transmission is put in the second space for transmitting torque from the annular head to the gear in selective one of two opposite directions. A switch is put in the second space through the third space and connected with the transmission. The transmission prevents the switch from rotating and rocking on the annular head.

Abstract: An anti-rolling socket. One end of the socket is formed with a fitting hole for fitting on a threaded member. An annular rib with a certain angle of arch is formed on a circumference of the socket to form a maximum outer diameter of the socket. In the case that the annular rib has a 360-degree arch, when the socket is placed on a plane, the annular rib and one end of the socket contact with the plane. When the socket rolls, the socket rolls about a circle. In the case that the annular rib has an arch that the angle of which is less than 360 degrees, when the socket rolls, the socket can only roll within a range less than one circle.

Abstract: An apparatus and method for installing and removing a recessed spark plug to and from an engine without a component thereof becoming disengaged. The spark plug tool is long enough to reach a recessed spark plug and includes a first housing member having an opening fitted with an elastomeric sleeve for receiving a spark plug, a shaft that may be integrally connected to the first housing member, and a second housing member which may be integrally connected to the shaft. The second housing member can be coupled to a torque member.

Abstract: A tool and a process of using the tool is provided, whereby nuts, bolts, etc. may be worked on in a hole below ground that is substantially deeper than the hole opening at ground level, wherein a ratchet wrench tool assembly is provided, with the ratchet being below ground and having a plurality of different sized wrench heads adapted to be used therewith, and actuable from above ground by moving an elongate handle backwardly and forwardly, to have a below-ground pawl engage different teeth of the ratchet.

Abstract: A hand tool structure includes a handle and a screw head rod. The handle is formed by pouring liquid plastic material into a cave of a mold. The screw head rod comprises a screw head at one end and a plurality of ribs at an opposite end. An end block is formed at the endmost of the ribs. When liquid plastic material is poured into the cave of the mold, the end block will slow down the pouring speed to eliminate any bubbles formed within the cave of the mold. The end block enlarges the contacting area between the screw head rod and the plastic material to enhance the striking force of the hand tool.

Abstract: A handle-sheath may be molded for of a flexible material and may be shaped and dimensioned so as to be stretched over a conventional handle, thereby permitting the sheath to be conveniently removed and replaced. An internal flushing mechanism is preferably provided for sanitizing the interior of the sheath without requiring the sheath to be removed from the handle. The handle sheath may be molded from a tear-resistant, soft touch, elastic polymer such as thermoplastic elastomer (otherwise known as “TPE”). The interior may be provided with inwardly facing support studs and/or channel walls which define a plurality of individual-contact areas between the sheath and the handle, each of which providing a respective localized intimate contact area for frictionally securing the sheath to the handle, and at the same time defining channels which facilitate the maintenance of a sanitary condition between the handle sheath and the underlying structure, as will be described in more detail hereinafter.

Abstract: The invention involves a carpet extractor for moving rolls of carpets and other tubular elements. The carpet extractor includes an elongate member to which the other components of the carpet extractor are coupled. A plurality of extendable members is linked to the elongate member and adapted to engage the inner surface of the tubular element. An engagement mechanism is also linked to the extendable members and configured to actuate the extendable members so as to facilitate the movement of rolls of carpet. The engagement mechanism can include one or more translational, cam members linked to the extendable members and which facilitate actuation of the extendable members to selectively engage a roll of carpet.

Abstract: A cartridge is configured for slitting a mill roll in a slitting machine. The cartridge includes a first shaft mounted in bearings in a pair of endplates, with one end of the shaft having a driven yoke for rotation thereof. The first shaft includes a row of first circular blades spaced longitudinally by corresponding first spacers. A second shaft is pivotally mounted in the endplates, and is spaced parallel with the first shaft. A dovetail bar is fixedly joined to the second shaft parallel therewith. And, a row of blade holders are mounted along the dovetail bar, with each holder including a second circular blade aligned with a corresponding one of the first blades for cutting in shear a web unwound from the mill roll. The cartridge may be quickly replaced in the slitting machine for each production run thereof for alignment with cores on a corresponding arbor.

Abstract: A method and apparatus for punching holes in a substrate which is disposed between a punch head with a fixed partial pattern of holes and a die having a full array pattern of holes. The punch head punches holes in the substrate by aligning with the die and contacting the substrate. Punches contained in the punch head articulate in at least one of x, y, and theta positions in order to precisely align with holes in the die thereby producing holes in the substrate which precisely match holes in the die.

Abstract: A material handling system for a table saw that controls the orientation and speed of material as it moves through the system.

Abstract: A the food processor includes a base, a lower cap, a blade disk and a top cap which has a feeding tube so as to feed vegetables and/or fruits therethrough by a plunger. The blade disk includes lower blades at inner positions and higher blades at outer positions. Two stepped gaps are defined between the feeding tube and the blades of the blade disk so that the particles such as peels and seeds which are not cut by the lower blades can be cut by the higher blades.

Abstract: A miter saw including a base, a turntable, a support section extending from the turntable, and a circular saw unit supported to the support section. A rotation amount detection unit is provided at the turntable for detecting rotation amount of the turntable relative to the base. The turntable has a tilt support, and the support section has a tilting section supporting the circular saw unit and supported to the tilt support. A tilting amount detection unit is provided at the tilting section for detecting tilting amount of the tilting section relative to the tilt support. The turntable has a front neck section where are installed a microcomputer computing a rotation angle of the turntable and tilting angle of the circular saw unit, and a RAM storing the detected rotation amount and the tilting amount.

Abstract: A miter saw capable of displaying a specific rotation angle of a turntable and a specific tilting angle of a circular saw blade when the turntable is moved to a position within a predetermined specific rotation angle range and when the circular saw blade is moved to a position within a predetermined specific tilting angle range, respectively. Normally, a digital display displays the rotation angle at a rate of a predetermined display unit rotation angle which is an integral multiple of a predetermined unit rotation angle corresponding to a single pulse. However, if the turntable is moved to the position within the predetermined specific rotation angle range, the specific rotation angle which is not the integral multiple of the predetermined display unit rotation angle is displayed at the digital display. The same is true with respect to the tilting angle.

Abstract: A miter saw including a base, a turntable, and a circular saw unit supported to the turntable. A turntable is rotatable about its axis, and a rotation limit mechanism is provided for limiting rotation of the turntable at a predetermined angle such as 45 degrees. A rotation amount detection unit is provided for detecting rotation amount of the turntable. A control unit is provided for displaying the rotation angle at a display. The control unit computes correction value that makes a rotation angle to be displayed at the display to be coincident with the predetermined rotation angle when the turntable is rotated to the predetermined rotation angle. The rotation angle is computed based on the correction value and on the rotation amount detected by the rotation amount detection unit.

Abstract: A miter saw including a base, a turntable, and a circular saw unit supported to the turntable. A turntable is rotatable about its axis. The turntable has a tilting motion support. A support section has a tilt section tiltingly movable relative to the tilt motion support, and pivotally movably supports the circular saw unit. A clamp shaft is provided for clamping the tilting section to the tilt motion support. A tilt amount fine control unit is provided for performing fine control to the tilting angle. The fine control unit includes an arcuate gear teeth section provided at the tilt motion support, a rotation shaft for moving the arcuate gear teeth, and an adjustment knob supported on the clamp shaft for rotating the rotation shaft. A neck table section is provided at a front side of the turntable. A digital display is provided on the neck table section for displaying a lateral tilting angle of the circular saw unit.

Abstract: Power tool 1 may include table 5 on which work W is positioned. A portion of a circular blade 3 protrudes above table 5. Circular blade 3 may be driven by a motor. The motor may be controlled by a control device 90. Work W is cut by means of an operator sending work W positioned on an upper face of table 5 in the direction of the circular blade 3 while circular blade 3 is being driven by the motor. Power tool 1 may include first radar device 86 and second radar device 87 for monitoring a predetermined area in the vicinity of circular blade 3. First radar device 86 may detect whether objects other than work are present in the vicinity of a outer edge of circular blade 3. Second radar device 87 may detect the location of objects moving within the predetermined area in the vicinity of circular blade and detects the speed at which the objects are moving in the direction in which work is sent.

Abstract: Sliced bread packaging method and equipment enable that sliced bread units, each unit having different predetermined numbers of bread slices, are smoothly supplied into a same one packaging apparatus. Sliced bread is conveyed in a standing state by a sliced bread feed-in conveyor (1) to be fed in a first supply path (10) conveying the sliced bread of one pound in the standing state or in a second supply path (20) conveying the sliced bread of a half pound in the standing state. The sliced bread of the one pound on the first supply path (10) is discharged as it is on a sliced bread receiving path (50) of the packaging apparatus. The sliced bread of the half pound on the second supply path (20) is received by a reversing device (40) to be turned sideways by 90° and is supplied into the packaging apparatus in a sideways turned state.

Abstract: A component supplying device includes a tape reel holder, in which a tape reel can be detachably positioned, and a tape supplying and discharging device. The component supplying device may furthermore include a cutting device that includes a knife that can be moved by means of a piston that is capable of performing a reciprocating movement within a cylinder.

Abstract: A rolled paper dispenser includes a main housing having a dispensing hole, a first roller mounted removably within the main housing and adapted to support a roll of paper, a paper feeding unit including a pair of contacting second rollers mounted rotatably within the main housing for advancing the paper from the roll of paper, a drive unit connected to the paper feeding unit, a paper cutter disposed within the main housing adjacent to the dispensing hole, and a sensor unit connected electrically to the drive unit to activate the second rollers through the drive unit so as to control advancement of a section of the paper to the dispensing hole.

Abstract: A punch change retainer for positioning a floating punch in a retracted, disengage position and an extended, engage position. The change retainer includes a change retainer body and a punch retainer receiving aperture extending upwardly through the change retainer body from a bottom surface thereof. A gagging member is located in the change retainer body and is actuable by an actuator between a retracted position distal from a nose portion of the change retainer body and an extended position adjacent the nose portion of the change retainer body. A floating punch retainer is receivable within the punch retainer receiving aperture, and includes an upper end positioned for engagement with the gagging member. A punch receiving hole is defined in the floating punch retainer; where the punch receiving hole is adapted to be rotatably positioned about a longitudinal center line of the floating punch retainer within the punch retainer receiving aperture.

Abstract: A band saw including a frame, at least two, spaced apart, rotatable wheels supported by the frame, a blade looped around the wheels, where rotation of at least one wheel causes the blade to move around the wheels, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system configured to engage and stop the blade within 10 milliseconds after detection of the dangerous condition is disclosed. The reaction system may be configured to cut and grip the blade.

Abstract: A process for skiving a substrate is described, wherein the substrate is skived with a roller or a device or apparatus including the roller. The roller provides a cleaner skive than previously known methods without damage to underlying materials.

Abstract: A key sensor-less automatic player piano includes, key actuators so as to give rise to key motion without any fingering of a human player, key sensors producing key position signals expressing key motion and a data processing unit producing music data codes during a performance on the keyboard and a playback table expressing a relation between the hammer velocity and a reference key velocity; while the data processing unit is recording the performance, the hammer velocity is estimated on the basis of a key velocity-to-hammer velocity conversion table already prepared through an experiment where the keys are depressed by a human player; while the data processing unit is preparing the playback table, the hammer velocity is estimated on the basis of another velocity conversion table prepared through another experiment where the keys are actuated by the key actuators.

Abstract: The unique sounding drum is a drum assembly having a metal body, a pair of upper rings and a membrane stretched across the top of the metal body and extended between the pair of upper rings. The metal body has a general hourglass configuration with an upper portion decreasing in diameter from a top opening to a midsection, and a lower portion increasing in diameter from the midsection to a bottom opening. A semi-circumferential arcuate relief extends partially, across the widths of the upper rings. The arcuate relief may have a plurality of grooves, dimensioned to have different widths and circumferential lengths. Additionally, the metal body has an interior chamber with a plurality of scratchings on it, which provide the drum assembly with a clearer voice and sound. The drum assembly may include a mallet, a cover made from a soft material, and an elastic cord.

Abstract: A foot pedal for electronic drums includes a lower tab or pedal or other extension for triggering by pressing down, and an upper tab or pedal or other extension for triggering by raising the foot. Also included is the joining of the upper and lower extensions (tab, pedal or other) into a pedal assembly that includes: a hinge or axle or other device which allows the pedal assembly to rotate in an arc; a striking device (stick, rod or other) that is attached to the pedal assembly and hits impact sensitive electronic drum triggering devices (pads, tubes or others); and an elastic device or spring which returns the pedal assembly to the neutral (at-rest) position.

Abstract: Slide-rule type devices for music study. Requires two printed parts that slide relative to each other; or three parts in the special case of a device for studying violin. Information on one of the parts is viewed through the other part. When employed together, the two parts reveal information most relevant in a particular musical scale or key, and obscure the information not normally used in that key. Multiple embodiments are possible, allowing a device to be constructed specific to a given instrument such as a violin or guitar, but the concept is not limited to stringed instruments, or any instrument. Similar devices could be made to facilitate music study for voice students, songwriters and arrangers. One of the sliding pieces is printed with all the available notes or tones, say, in the range of an instrument like a guitar. In the most likely embodiment, the other piece contains a transparent window printed with a series of geometric shapes of varying colors.

Abstract: A grand piano generates acoustic tones through vibrations of strings and sound board so that the acoustic tones are converted to analog audio signals at recording points over the sound board, and a group of waveform data sets are produced from the analog audio signal through sampling and analog-to-digital conversion; when electronic tones are generated, delay parameters and volume parameters are determined on the basis of differences between the recording points and tone radiating points occupied by loud speakers, the sets of waveform data series are sequentially read out from the group of waveform data sets and are modified with the delay parameters and volume parameters so that the electronic tones become close to the acoustic tones.

Abstract: A “music mixer”, as described herein, provides a capability for automatically mixing arbitrary pieces of music, regardless of whether the music being mixed is of the same music genre, and regardless of whether that music has strong beat structures. In automatically determining potential mixes of two or more songs, the music mixer first computes a frame-based energy for each song. Using the computed frame-based energies, the music mixer then computes one or more potentially optimal alignments of the digital signals representing each song based on correlating peaks of the computed energies across a range of time scalings and time shifts without the need to ever compute or evaluate a beats-per-minute (BPM) for any of the songs. Then, once one of the potentially optimal time-scalings and time-shifts has been selected, the songs are then simply blended together using those parameters.

Abstract: A control unit controls to access the beat guide file for timings of beats, cues, lyrics, and messages of musical sound data to be reproduced, and controls an image processing unit to display beat guide objects (52a and 52b), which respectively represent beat timings and reproducing pitches of selected musical sound data. This allows a user to reproduce musical sound data at will by referring to the beat guide objects (52a and 52b) and visually recognizing beat progression, reproducing pitches, cue positions, lyrics, and messages of the musical sound data to be reproduced.

Abstract: An apparatus for amplifying the sound of a stringed instrument includes, in its most basic form, a speaker attached to a strap that is adapted to be draped around a musician with each end thereof detachably-attachable to the stringed instrument. An amplifier circuit, according to a first embodiment, is connected to the speaker and attached to the strap along with a battery. A pickup wire is attached to an input of the amplifier circuit and to an electrical jack on the musical instrument. Portable amplification of the stringed instrument is provided. Other embodiments disclose a remote amplifier circuit and a remote battery that are attached elsewhere to the musician while the amplifier circuit output remains connected to the speaker that is always attached to the strap. A two-piece strap is disclosed as are a variety of different types of speakers that are attached to any preferred version of the strap.

Abstract: An acoustical device is provided in the form of a stringed musical instrument having a hollow resonant body. A speaker is coupled to the resonant body so that the speaker generally overlays the strings of the musical instrument. A power supply is mounted to the instrument for powering the speaker. A sound processing device is provided for receiving at least one of a first sound signal that is generated from the strings of the musical instrument and a second sound signal. The sound processing device generates an output signal to the speaker from at least one of the first and second sound signals. The sound processor has at least one non-overall-volume sound effect generating function.

Abstract: The present invention is a method of interception. When a missile is launched and detected by a satellite, an anti-missile rocket is launched to intercept it. When the anti-missile rocket nears the point of interception, it goes into a turn of about 180 degrees, to reverse its course, and comes in behind the enemy missile, at a speed almost equal to that of the ICBM. In this maneuver, coming in behind the ICBM, it reduces the relative speed of the two rockets from about 13,000 mph to about 50 mph, and allows the interceptor missile to approach the ICBM at a slow speed and easily destroy it.

Abstract: A regeneration manifold for a hydraulic system used with a tool attachment on construction and demolition equipment redirects fluid from a reservoir back to the extension chamber to extend the cylinder at a much higher rate when the tool attachment is under little or no load.

Abstract: The liquid container includes a body for having a tank portion housing a liquid, and having a supply port on a tip end side, a piston for moving forward inside the tank portion, a piston rod connected with the piston and extending rearward, a manipulating cylinder rotatably mounted to a rear portion of the body, and a rotation stopping cylinder unrotatably disposed in a rear inner portion of the body. A conversion mechanism for converting relative rotation between the manipulating cylinder and the body into movement of the piston rod in an axial direction with respect to the body is provided between the manipulating cylinder and the rotation stopping cylinder, and a rotating direction restricting mechanism for restricting the rotating direction of the manipulating cylinder and the body to one direction is provided.