| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 269027000 | Cylinder-piston means in series with additional positioning means | 42 |
| 20080237957 | ADJUSTABLE STROKE GRIPPER - A fluid-driven actuator includes a chamber having a first stop and a second stop, a member that is extendable and retractable from the chamber, and a piston that is moveable toward the first stop to extend the member from the chamber and toward the second stop to retract the member into the chamber. The first stop is adjustable to vary a distance between the first stop and the second stop. | 10-02-2008 |
| 20120153553 | Workpiece Retention and Handling Systems - In some aspects of the disclosure, a workpiece retention device for securing plate-like workpieces to a workpiece movement unit of a machine tool includes first and second workpiece clamping elements and a clamping drive by which the workpiece clamping elements can be moved towards one another starting from an initial relative position in order to clamp a workpiece that is arranged between the workpiece clamping elements. The workpiece retention device also includes an adjustment device that can adjust the initial relative position of the workpiece clamping elements. | 06-21-2012 |
| 20140138890 | FLUID PRESSURE CYLINDER AND CLAMP DEVICE - A fluid pressure cylinder and a clamp device that, when an output member arrives at a prescribed position such as, in particular, an advance limit position or a retraction limit position, are capable of detecting the position of the output member on the basis of change of air pressure as, due to an opening/closing valve mechanism, the communication state of an air passage within the clamp main body is changed over together with the operation of the output member. | 05-22-2014 |
| 20140167342 | JIG FOR ALIGNING DOOR HINGE OF AUTOMATIC SYSTEM FOR MOUNTING DOOR HINGE TO VEHICLE - A jig for aligning door hinges into a position at a predetermined mounting angle in an automatic system that automatically mounts door hinges to upper and lower seats on pillars of a vehicle body conveyed by a conveying unit. The jig may include a support frame, a first support part fixed to the support frame and supporting a hinge bracket of the door hinge, a pair of second support parts movably disposed at both sides of the first support part and respectively supporting both sides of a door bracket of the door hinge, and an actuating cylinder fixed to the support frame and connected with the second support parts. | 06-19-2014 |
| 269030000 | With common fluid means for holding and releasing | 3 |
| 20110140329 | Modular Hydraulic Load Support Device - A hydraulic load support device comprises a pump unit that includes a reservoir chamber configured to contain hydraulic fluid and a reservoir passageway in fluid communication with the reservoir chamber. The pump unit further includes a connection interface having a delivery passageway in fluid communication with the reservoir passageway. The pump unit further includes a handle connected to the reservoir chamber that is movable to drive hydraulic fluid from the reservoir chamber. The hydraulic load support device further includes a pivoted jaw frame affixed to the connection interface. The pivoted jaw frame is movable from a closed position to an open position and vice versa. The pivoted jaw frame includes a head passageway in fluid communication with the delivery passageway and an actuator including a fluid chamber in fluid communication with the head passageway to receive hydraulic fluid and thereby move the pivoted jaw frame to the open position. | 06-16-2011 |
| 20150328748 | Vibration Stop Device - A vibration stop device that can prevent a problem caused by intrusion of a pressure contact region of a holding part of the vibration stop device into a recess of a processing region of a work includes a plurality of holding parts for the vibration stop which hold an outer circumferential surface of a columnar work in a process stage under a pressure contact state with pressure supplied from a hydraulic cylinder, and a pressure contact position on the outer circumferential surface is changed by rotation of the work, and an angular range formed by opposite ends of each of the holding parts for the vibration stop is larger than an angular range of the processing region regarding an angular range based on a position of an axis of the rotation. | 11-19-2015 |
| 269031000 | Cylinder-piston unit rotatably and/or pivotally mounted | 1 |
| 20090295052 | Device For Displacing Jaws Of A Clamp - A mechanical device for displacing jaws of a spring biased clamp includes a housing for receiving handles of the spring biased clamp. The housing has a platform moveable toward and away from a wall to move the handles of the clamp toward and away from one another, to move the jaws of the clamp away from and toward one another, respectively. A control member activates and deactivates a force applying member operationally connected to the platform, wherein activating the force applying member moves the platform toward the wall and deactivating the force applying member moves the platform away from the wall of the housing. The device is used to apply clamps to marginal edge portions of a stack of two one or more sheets to provide a clamped subassembly. The clamped subassembly in one embodiment is laminated to provide an aircraft transparency. | 12-03-2009 |
| 269032000 | Mechanical means between fluid means and jaw | 35 |
| 20080315477 | PIN LOCATING ASSEMBLY - A locating pin assembly is provided. The assembly includes a body and a cylinder assembly for moving a ram in a reciprocally linear manner. A bearing is coupled to the ram and configured to engage a bearing wedge to reduce “play” between the ram and the assembly. Illustratively, the bearing and bearing wedge reduce or substantially eliminate this “play” to prevent axial rotation of the ram. | 12-25-2008 |
| 20090096146 | Pin Clamp Assembly - A pin clamp assembly having a housing, locating pin, at least one finger, a drive rod and an actuator is provided. At least a portion of the locating pin may be extendable exterior of the housing. The finger is located adjacent the locating pin and movable relative thereto. The drive rod is movable and is engagable with the finger to move the finger between clamped and unclamped positions. The actuator drives the locating pin and the drive rod. Movement of the locating pin and drive rod is linear only and no rotational movement of the locating pin and drive rod is employed to move the finger between clamped and unclamped positions. | 04-16-2009 |
| 20090121403 | PIN CLAMP - A pin clamp assembly is provided which includes a housing, a locating pin, a body, a twist pin, and a cam pin. The locating pin extends from the body. Both the body and the locating pin include longitudinally extending cavities contiguously disposed therein. The body also includes a longitudinally extending slot. At least a portion of the locating pin and the body is located in a bore disposed through the housing. The twist pin is disposed in the longitudinally extending cavities of the locating pin and body. The twist pin includes a longitudinally extending arcuate slot. The cam pin is coupled to the housing. The cam pin engages the slot. An electrical driven actuator includes an electric motor that rotates to move the locating pin linearly to rotate the twist pin. | 05-14-2009 |
| 20090152784 | SWING CLAMP | 06-18-2009 |
| 20090236785 | PIN CLAMP ACCESSORIES - The present disclosure provides a pin clamp having first, second and third pins, a finger and stripper assembly. The first pin moves in response to an actuation. At least one finger is positioned adjacent the first pin, and is movable between clamped and unclamped positions. The second pin is located adjacent the first pin and is in operable communication with the finger. The stripper assembly comprises the third pin that is selectively engagable with the second pin, and an actuator that moves the third pin. The first activation of the actuator moves the third pin causing it to engage the second pin causing it to move the finger to the clamped position. The second actuation of the actuator moves the third pin causing it to disengage from the second pin causing it to not move the finger to the clamped position. | 09-24-2009 |
| 20090283948 | CLAMP DEVICE - A clamp device including a detection mechanism provided to detect whether the clamp device is in a clamped state or an unclamped state. The detection mechanism includes a tilt plate tiltably placed inside a switch holder installed on a body and a sliding rod displaced together with a piston rod and displaced in the direction normal to the tilt plate. When the sliding rod presses and tilts the tilt plate while a piston is displaced, a second detection switch detects that the clamp device is in the unclamped state. | 11-19-2009 |
| 20100044942 | CLAMP APPARATUS - A lock mechanism includes a casing that is fixed to a side surface of a body, a handle disposed rotatably on the outside of the casing, and a transmission section, which is capable of transmitting a drive force applied by the handle. An end of a guide rod making up the transmission section is connected in a body surrounding groove of a piston rod disposed inside the body. In addition, by rotating the handle, the guide rod of the transmission section is displaced vertically (upward and downward), such that an arm is rotationally displaced through a toggle link mechanism by displacement of the piston rod along the axial direction. | 02-25-2010 |
| 20100308521 | CLAMPING APPARATUS - A clamp rod ( | 12-09-2010 |
| 20100320664 | CLAMP DEVICE - A clamp device includes a grip member, a clamp rod, and a hydraulic cylinder, and, by the grip member being inserted into an hole in a workpiece, it can grip the inner circumferential surface of the hole. The clamp device is provided with: a main body member; seating surfaces formed upon the main body member, upon which the workpiece is seated; a seating sensor that includes a pressurized air ejection hole opening to the seating surfaces; and a workpiece mounting surface that can receive and stop a workpiece at a position that is more advanced than the seating surfaces when the grip member is at an advanced position (its unclamped state), and that shifts together with the grip member during clamp operation when the grip member and the clamp rod shift towards retraction. | 12-23-2010 |
| 20100327503 | CLAMP DEVICE - A clamp device includes an annular grip member capable of being inserted into an hole in a workpiece and of gripping the inner circumferential surface of the hole, a clamp rod having a tapered shaft portion fitted inside the grip member and engaged therewith, a hydraulic cylinder capable of axially advancing and retracting the grip member and the clamp rod, and a clamp main body member. The clamp device is provided with seating surfaces formed upon the clamp main body member, on which the workpiece is seated, and a poor clamping detection mechanism that detects poor clamping, in the state in which the grip member is driven in its clamping direction by the hydraulic cylinder via the clamp rod, and the workpiece is in its state of being seated upon the seating surfaces. | 12-30-2010 |
| 20110031670 | CLAMP DEVICE - A clamp device includes a support mechanism that supports a grip member when expanding the diameter thereof, a clamping hydraulic cylinder that can drive the grip member and a clamp rod axially forwards and backwards (up and down), and a main body member to which the grip member, the clamp rod, the support mechanism, and the clamping hydraulic cylinder are mounted, with the grip member, the clamp rod, and the support mechanism being positioned at one end portion of the body member, and with the common axis of the grip member and the clamp rod being offset from the axis of the clamping hydraulic cylinder in a direction orthogonal to the clamp rod. | 02-10-2011 |
| 20120193855 | CLAMP DEVICE - Clamp devices configured such that dust does not enter insides of casings. The clamp devices each include the casing, and a clamp-side end section of a clamp arm is exposed from an opening of the casing. The clamp arm includes: a first circular arc section which is exposed from the casing when a workpiece is clamped by the clamp arm and is contained within the casing when the workpiece is not clamped by the clamp arm; and a second circular arc section which is exposed from the casing when the workpiece is not clamped by the clamp arm and is contained within the casing when the workpiece is clamped by the clamp arm. A first scraper and a second scraper are in sliding contact with the first circular arc section and the second circular arc section, respectively. The clamp device can also include a side surface cleaning scraper for making sliding contact with a side surface of the first circular section. | 08-02-2012 |
| 20120267838 | Spring Actuated Link Clamp - A clamp has a housing with a piston assembly positioned in the housing. A detent mechanism is coupled with the piston rod and is positioned in the housing. A clamping arm is coupled with the piston rod. The clamping arm is moved by a biasing mechanism from a position parallel to the piston rod, when in a retracted position, to a position substantially perpendicular to the piston rod, when in a clamping position. | 10-25-2012 |
| 20130249156 | CLAMP APPARATUS - A clamp apparatus comprises a guide member with a top wall and a circumferential wall that protrude above a housing and are inserted into a hole of a work. The guide member is inserted into the housing to be movable downward against an advancing unit that pushes the guide member upward, within a locking stroke of downward movement. Through the circumferential wall, a plurality of guide grooves are made at predetermined intervals in circumferential directions. A locking member inserted into each guide groove is biased radially inward by an annular elastic member which is a thin strip. A clamp rod has wedge surfaces engaging with the respective locking members from above, and is clamp-driven downward and unclamp-driven upward by a piston. | 09-26-2013 |
| 20130334753 | WORKPIECE HOLDING FIXTURE FOR MACHINING MULTIPLE PRISMATIC PARTS - A workpiece holding fixture including a base plate having an engagement surface including a travel slot. A first static riser includes a position control member configured to removably couple a workpiece to the first static riser. A second static riser includes a rotation control member and is configured to removably couple the workpiece to the second static riser. A dynamic riser is configured to abut the workpiece by automatic, semi-automatic, or manual movement into secure engagement with the workpiece. The dynamic riser is slidably coupled with the travel slot and is operable between a plurality of positions associated with workpiece variants having different locating features and geometries. | 12-19-2013 |
| 20140035212 | Toggle Lever Clamp - The toggle lever clamp has a clamp housing coupled with a cylinder assembly. A piston assembly is movable within the cylinder assembly. A rod is coupled with the piston assembly. The rod extends into a cavity within the clamp housing. A toggle lever assembly is coupled at one end of the rod inside of the clamp housing. A sensor assembly is coupled with the clamp housing. The sensor assembly includes a pair of sensors or switches spaced from each other and positioned on a mounting plate. The mounting plate is slidably secured within the clamp housing. A sensor pickup is movably positioned on the rod so that the sensor pickup is multi-positionable on the rod to adjust the stroke of the toggle lever assembly. | 02-06-2014 |
| 20140103589 | PIN CLAMP WITH MULTI-THICKNESS CLAMPING FEATURE - A pin clamp for clamping a workpiece includes a housing and a locating pin extending through the housing and having a longitudinal axis. The locating pin is sized to be positioned within an opening of the workpiece. A finger is positioned adjacent to the locating pin and movable in a transverse direction relative to the longitudinal axis to retain the workpiece on the locating pin. A linear actuator is configured to move the locating pin in opposite directions along the longitudinal axis. A locking arrangement is carried by the housing. A sequence cam is connected with the linear actuator in a manner allowing axial movement of the linear actuator to be converted into transverse movement of the sequence cam. The sequence cam includes an engagement surface which engages the locking arrangement to lock the locating pin and the finger against the workpiece upon retraction of the linear actuator. | 04-17-2014 |
| 20140291908 | ACTUATING DEVICE - An actuating device has a linearly-movable fluidly operated piston drive (1). A pivot shaft (3) is movably, rotatably mounted in a housing (2). A lever arm (4) is connected with the pivot shaft (3) in a torsionally rigid manner. An adjustment mechanism (5) connects the piston drive (1) with the pivot shaft (3). A damping device (6) dampens movement of the lever arm (4). The damping device (6) is associated with the housing (2) and with the pivot shaft (3). | 10-02-2014 |
| 20140339751 | FIXTURE FOR CLAMPING WORKPIECE - A fixture for clamping a workpiece is disclosed. The fixture includes a supporting stand and an elastic contacting assembly. The supporting stand has a first accommodating space and a plural of fixing portions. The elastic contacting assembly is disposed in a corner of the supporting stand. The elastic contacting assembly includes a cylinder, a pushing block driven by the cylinder and moved toward the first accommodating space to lean against the workpiece, and an elastic component disposed between the cylinder and the pushing block. Thereby, an elastic pushing force will be provided to the workpiece for positioning the workpiece, and there will be no damages to the workpiece. | 11-20-2014 |
| 20140361477 | Tool for Clamping Using End Faces of Workpieces - A tool for clamping using end surfaces of box workpieces, comprises a soleplate and an upper template. A tightening cylinder has a piston rod connected with a top plate, and the top plate and the piston rods are in swinging connection. Three protrusions are arranged on the upper surface of the top plate and distributed in a triangle shape. A rotating shaft is arranged beside a position of the upper template, the upper end of the rotating shaft is provided with a hand wheel capable of driving the rotating shaft to rotate, the rotating shaft is sleeved with a compression spring on the portion between the hand wheel and the upper surface of the upper template, and the lower end of the rotating shaft is fixed with one end of a transverse support rod which is linked with the rotating shaft. | 12-11-2014 |
| 20150084255 | FASTENING TOOL FOR DYNAMICALLY FASTENING PARTS FOR MACHINING - The present invention relates to a fastening tool for dynamically fastening parts for machining, said tool being formed by an annular frame ( | 03-26-2015 |
| 20150123332 | Clamp System For Welding Applications - A welding clamp system using a fixture plate with a bulkhead that allows the clamp system to be coupled to a robotic arm. The robotic arm supplies air and electricity through pneumatic and electrical ports, enabling operation of the clamp system. The air is routed to pneumatic cylinders, which power a pneumatic clamp mechanism that moves sliding clamp fixtures along tracks. The sliding clamp fixtures press a work piece against immobile clamp fixtures, allowing a work piece to be secured and held during welding. Presence of a work piece is detected by proximity sensors which are mounted into the fixture. The clamp system allows a robotic arm to grab a work piece from a supply area, initiate and complete welding of the work piece, and then release the work piece onto a discharge station for removal of the completed work piece. | 05-07-2015 |
| 20150145194 | CLAMPING DEVICE - A clamping device has an actuator that moves linearly and is actuated by a drive. A pivoting clamping element is operatively connected, via a toggle lever mechanism, with the actuator. The toggle lever mechanism includes a drive-side adapter and a hand lever-side adapter. The drive side adapter and hand lever side adapter can be adjusted relative to one another to define an opening angle of the clamping element. One of the adapters has a profiled bar extending in a direction of actuation. The other adapter has an insertion region to accommodate the bar. A fixing element is provided in one of the adaptors to define the location of the adapters relative to one another. The fixing element can be clamped against the profiled bar and also against an insertion region. | 05-28-2015 |
| 20150145195 | CLAMP APPARATUS - A clamp apparatus is equipped with a body, and a drive unit having a piston displaced under the supply of a pressure fluid. A clamp arm is disposed rotatably on the body. In addition, a piston rod of the drive unit is connected detachably with respect to a displaceable body of a driving force transmission mechanism which is disposed in the interior of the body. Upon detachment of a connector of the piston rod from a connecting recess of the displaceable body, the state of connection between the drive unit and the driving force transmission mechanism is released. | 05-28-2015 |
| 20150336242 | SLIDING HEAD LOCKING PIN CLAMP - A sliding head locking pin clamp is provided having a housing with a housing bore extending axially therethrough along a first axis. An end cap has an end cap bore extending therethrough along the first axis, wherein the end cap is operably coupled to a first end of the housing. A shaft has a shaft bore extending through the shaft along the first axis, wherein an outer diameter of a first end of the shaft generally defines a first portion of a locating pin. The first portion of the locating pin is in axial sliding engagement with at least a first portion of the end cap bore. The shaft has a shaft hole extending radially through the shaft along a second axis, wherein the second axis is perpendicular to the first axis. The shaft further has a shaft guide rod generally fixedly positioned in the shaft hole. A piston is coupled to the shaft and is in sliding engagement with the housing bore to linearly translate the shaft between a first axial position and a second axial position along the first axis. A slider has a slider hole extending radially therethrough, wherein the shaft guide rod is in linear sliding engagement with the slider hole, therein providing a linear translation of the slider with respect to the shaft along the second axis between a first radial position and a second radial position. The slider has a rod member extending through a first end of shaft bore and comprising a tip having an engagement lip, wherein the tip of the rod member generally defines a second portion of the locating pin. A cam follower also extends radially from the slider. A cam block has a cam block bore extending into the cam block along the first axis, wherein the cam block comprises a cam channel defined in a sidewall of the cam block bore. A portion of the slider is configured to reside within the cam block bore and wherein the cam follower is in sliding engagement with the cam channel. In the first axial position and first radial position, the first and second portions of the locating pin are configured to pass through a locating hole of a workpiece. In the second axial position and second radial position, the rod member is configured to clamp the workpiece between the engagement lip and the end cap. The first radial position and second radial position are governed by the sliding engagement between the shaft guide rod and the slider hole, and the sliding engagement between the cam follower and the cam channel upon the linear translation of the shaft between the first axial position and second axial position. | 11-26-2015 |
| 20150375370 | PIN CLAMP WITH MULTI-THICKNESS CLAMPING FEATURE - A pin clamp for clamping a workpiece includes a housing and a locating pin extending through the housing and having a longitudinal axis. The locating pin is sized to be positioned within an opening of the workpiece. A finger is positioned adjacent to the locating pin and movable in a transverse direction relative to the longitudinal axis to retain the workpiece on the locating pin. A linear actuator is configured to move the locating pin in opposite directions along the longitudinal axis. A locking arrangement is carried by the housing. A sequence cam is connected with the linear actuator in a manner allowing axial movement of the linear actuator to be converted into transverse movement of the sequence cam. The sequence cam includes an engagement surface which engages the locking arrangement to lock the locating pin and the finger against the workpiece upon retraction of the linear actuator. | 12-31-2015 |
| 20160008935 | Clamp Mounting System | 01-14-2016 |
| 20160136789 | CLAMP APPARATUS - A clamp apparatus including two pairs of first and second clamp arms, which are supported rotatably with respect to a body and are disposed mutually in parallel. First and second cam members including respective cam surfaces are provided on ends of the first and second clamp arms. The first cam members are pressed by rollers upon lowering of a block body under a driving action of a first cylinder that makes up a drive unit. The first clamp arms are rotated to assume a clamped state. The second cam members are pressed by rollers upon lowering of a block body under a driving action of a second cylinder of the drive unit, whereby the second clamp arms are rotated to assume a clamped state. | 05-19-2016 |
| 20160151869 | WORKPIECE FASTENING DEVICE FOR PRESSING PLURALITY OF LOCATIONS OF WORKPIECE | 06-02-2016 |
| 269034000 | Single fluid unit moves plural spaced jaws | 6 |
| 20150137440 | CLAMP APPARATUS - A clamp apparatus includes a pair of first and second clamp arms. A driving force transmission mechanism transmits a driving force of a drive unit, whereby the first clamp arm is operated to rotate via a link arm, while simultaneously, the second clamp arm is rotated, and after being rotated through a predetermined angle, under moving action of a roller, which is inserted into a cam groove of a link plate, rotation of the second clamp arm is stopped and maintained in advance with respect to the first clamp arm. Consequently, after positioning of a workpiece has been carried out by the second clamp arm, rotation of which is stopped, the first clamp arm continues to be rotated, whereby the workpiece is clamped. | 05-21-2015 |
| 20150306742 | Clamping Mechanism For Automotive Check Fixture - The invention is directed toward an improved clamp for an automotive checking fixture. The clamp comprises a body, a cap, a plunger pin, a hard stop dowel, a plurality of fingers, a plurality of engagement jaws, an alignment strap, a plurality of pivot pins, a plurality of alignment pins, a plurality of springs, and a plurality of set screws. Furthermore the body may further comprise an internal compartment, a plurality of mounting holes, a plurality of set screw channels, and a plurality of locating holes. The mounting holes permit the body to be mounted to a checking fixture. The locating holes permit the cap to be aligned properly to the body. The set screw holes receive the set screws. Furthermore, the engagement jaws have a plurality of holes for attaching the engagement jaws to the fingers. The engagement jaws may have a shaped edge to create an opening. | 10-29-2015 |
| 20150343608 | CLAMP APPARATUS - A driving force transmission mechanism of a clamp apparatus includes first link arms, which are pivotally supported for rotation on ends of first and second piston rods, and second link arms, which connect other ends of the first link arms to respective ends on one end side of first and second clamp arms. Further, first rollers, which are provided on the one end of the first link arms, are guided in a horizontal direction along guide grooves of first guide members, and second rollers, which are provided on the other ends of the first link arms and the second link arms, are guided in a vertical direction along guide grooves of second guide members. | 12-03-2015 |
| 20150352691 | CLAMPING DEVICE - A clamping device has a pair of first and second clamping arms rotatably supported with respect to a body, and a cam member having a cam surface is removably provided at one end of each of the first and second clamping arms. A pair of rollers pivotally supported by a block body constituting a drive unit are each in contact with the cam member. By a descent of the block body under the driving action of the drive unit, the cam surface of the cam member is pressed by the rollers, and the cam surface inclined in the displacement direction of the block body and recessed in a cross-sectional arc shape is pressed. | 12-10-2015 |
| 20150352692 | CLAMP APPARATUS - A clamp apparatus is equipped with first and second clamp arms supported rotatably with respect to a body, and a drive unit having a pair of first and second pistons displaced under the supply of a pressure fluid. A driving force of the drive unit is transmitted to the first and second clamp arms through knuckle joints, which are connected to first and second piston rods, power-boost levers, and link arms. The power-boost levers are formed such that the length from a support pin toward the knuckle joint is longer than the length from the support pin toward the link arm. | 12-10-2015 |
| 20160167202 | PNEUMATICALLY OPERABLE WORK TOOL | 06-16-2016 |
