Guard Mechanisms Patents (Class 74/612)
  • Patent number: 9003923
    Abstract: A cover structure of a machine tool, including a fixed cover for isolating the inside portion of the machine tool from the outside, the inside portion serving as a machining space, and a one-side opening type slide door for opening and closing an opening portion formed in the fixed cover, includes a stop structure portion for, when the slide door is closed, stopping the slide door at a predetermined distance away from the end surface of the opening portion of the fixed cover. The stop structure portion is provided on a portion of the slide door other than the closing-direction-side end surface of the slide door, or at a portion of the fixed cover other than the slide-door-closing-side end surface of the opening portion of the fixed cover.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: April 14, 2015
    Assignee: Fanuc Corporation
    Inventor: Naoki Sato
  • Publication number: 20140373674
    Abstract: A protection mechanism for a machine, used for monitoring and securing the position of doors and/or positionable machine parts, having a central safety bracket movably supported relative to the doors and/or the positionable machine parts, and configured such that it can only be closed when all the doors are closed and all the machine parts are at an operating position, and a central safety switch which monitors the position of the central safety bracket.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 25, 2014
    Inventors: Christian Stoiber, Robert Scheibenpflug
  • Publication number: 20140352490
    Abstract: Disclosed is a modular barrier system to protect a machine user from injury, the barrier structure having a plurality of modular units that can be manipulated individually to provide variable configurations of the barrier structure, that can be used with different pieces of machinery or for different applications, without removal or changing of the barrier structure in its entirety. The modular units comprise a slide unit and a latch mechanism to lock each individual modular unit in place, by way of ratcheting teeth. The barrier system may be positioned on a rail system that provides for lateral movement of the modular units while maintaining its attachment to the rail by a rail lock mechanism on the modular unit.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Applicant: A & E INCORPORATED
    Inventor: KEVIN GRACYALNY
  • Patent number: 8882415
    Abstract: A telescopic cover of a machine tool is provided with two movable covers connected by a joint, two pulleys mounted on the joint, and a single wire stretched around and between the two pulleys. One and the other ends of the wire are secured to the mobile element, and a middle portion of the wire to a fixed portion. In this arrangement, the two movable covers connected by the joint move half the movement stroke of the mobile element in association with the action of the mobile element.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: November 11, 2014
    Assignee: Fanuc Corporation
    Inventors: Akihiko Nagao, Naoki Sato
  • Publication number: 20140102249
    Abstract: On a machine for processing sheets it is provided, in particular in a region of an extension arm, to completely close a rear opening on the end side by at least one upper and one lower cover. Lateral openings are also closable by movable guards, which at least partially are formed from a transparent material.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 17, 2014
    Applicant: HEIDELBERGER DRUCKMASCHINEN AG
    Inventors: PETER FOERCH, BJORN WILKE
  • Publication number: 20140053682
    Abstract: A protective plate for power equipment, such as chainsaws. The protective plate may include a front skid plate bend, a side impact bend, a gas tank protection bend, and a rear handle bend to protect different areas of the chainsaw's body from damage. The protective plate may be secured to the bottom of the chainsaws body by using bolts.
    Type: Application
    Filed: May 3, 2013
    Publication date: February 27, 2014
    Inventor: Thomas Bendien
  • Patent number: 8640570
    Abstract: Flat protective cover (1) with two degrees of freedom for tool machines, which can be associated with an operating member (A) movable along at least two main directions (D1, D2), includes: at least a first flat covering element (2), operatively connected to the operating member (A); at least a second flat covering element (3); guide and retaining elements (5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b) to mutually couple in a sliding way the covering elements, wherein the protective cover (1) further includes an intermediate frame (4) between the first (2) and second (3) flat covering element, arranged for allowing mutual sliding of the flat elements (2,3) along the two mutually orthogonal main directions (D1, D2), and the guide and retaining elements (5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b) include pairs of linear guides (5a, 5b, 6a, 6b) arranged for co-operating by mutual sliding with pairs of blades (7a, 7b, 8a, 8b).
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: February 4, 2014
    Assignee: La Protec SRL
    Inventors: Riccardo Viola, Tommaso Viola
  • Publication number: 20130327178
    Abstract: A telescopic cover of a machine tool is provided with two movable covers connected by a joint, two pulleys mounted on the joint, and a single wire stretched around and between the two pulleys. One and the other ends of the wire are secured to the mobile element, and a middle portion of the wire to a fixed portion. In this arrangement, the two movable covers connected by the joint move half the movement stroke of the mobile element in association with the action of the mobile element.
    Type: Application
    Filed: April 29, 2013
    Publication date: December 12, 2013
    Applicant: FANUC CORPORATION
    Inventors: Akihiko NAGAO, Naoki SATO
  • Patent number: 8505570
    Abstract: A mobile crane has at least two crane booms which are connected together by a joint such that the angular position with respect to each other can be adjusted. At least one hose between the crane booms, and the hose is exposed in the region of the joint in at least one angular position of the crane booms. At least one flexurally elastic sheet is connected with the at least one hose or covers it at least in the exposed region and can flex when the angular position of the at least two crane booms is changed. The at least one flexurally elastic sheet can be moved into or respectively out of one of the crane booms upon a change in the angular position of the crane booms.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: August 13, 2013
    Assignee: Palfinger AG
    Inventor: Eckhard Wimmer
  • Publication number: 20130199333
    Abstract: A cover structure of a machine tool, including a fixed cover for isolating the inside portion of the machine tool from the outside, the inside portion serving as a machining space, and a one-side opening type slide door for opening and closing an opening portion formed in the fixed cover, includes a stop structure portion for, when the slide door is closed, stopping the slide door at a predetermined distance away from the end surface of the opening portion of the fixed cover. The stop structure portion is provided on a portion of the slide door other than the closing-direction-side end surface of the slide door, or at a portion of the fixed cover other than the slide-door-closing-side end surface of the opening portion of the fixed cover.
    Type: Application
    Filed: November 20, 2012
    Publication date: August 8, 2013
    Applicant: FANUC CORPORATION
    Inventor: FANUC CORPORATION
  • Publication number: 20130098199
    Abstract: The device comprises at least one safety screen (3) linked to a fixed structure (10) of a printer (40) through first guide elements (2a, 2b, 2c, 2d) installed in said fixed structure (10) and complementary second guide elements (3a, 3b) installed in the screen (3) for allowing a linear movement of the screen (3) between a safe position, wherein the screen (3) prevents the access to a hazardous area of the printer (40), and a withdrawn position, wherein the screen (3) is withdrawn from said hazardous area, and an electronic safety device (4a, 4b) in connection with an electronic safety module configured for deactivating or stopping the movement of any element of the printer (40) in the hazardous area if the screen (3) is not in said safe position.
    Type: Application
    Filed: February 23, 2011
    Publication date: April 25, 2013
    Applicant: COMEXI GROUP INDUSTRIES, S.A.
    Inventor: Pere Moner Vilanova
  • Patent number: 8371797
    Abstract: The invention relates to facility including a robot (2) for supplying pallet preparation stations with products (3) of the crate type or different. The structure of the facility includes side walls (11) and doors (13, 14) for accessing the palletization stations A and B. The structure further includes a fixed wall (15) separating stations A and B, and a cowling (20) mobile from one station to the other and in the shape of a dihedron, for alternatively converting each palletization station A and B into a kind of pallet hatch, wherein said conversion is carried out automatically before the opening of the door for accessing a loaded pallet located in said hatch. The cowling (20) is directly actuated by the product handling robot (2).
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: February 12, 2013
    Assignee: Sidel Participations
    Inventor: Eric Bonhomme
  • Publication number: 20120312121
    Abstract: A protective cover for a handheld power tool, with a tool that is at least partially surrounded by the protective cover, is formed of at least a first wall element and a second wall element, which in order to form a tool space are connected to each other in a parallel-spaced arrangement. The first wall element has a first circumferential section and the second wall element has a second circumferential section. The circumferential sections overlap each other and form a circumferential wall of the protective cover, with at least one opening which is provided in the outer-lying second circumferential section and under which the inner-lying first circumferential section extends.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 13, 2012
    Applicant: MAKITA CORPORATION
    Inventor: Gunnar SALOMON
  • Publication number: 20120266719
    Abstract: A collapsible guard adapted to cover tae rear wheel of a stationery exercise bicycle supported on a bicycle trainer is described. The guard has side walls, an upper wall and a front opening sized to receive the bicycle rear wheel and trainer. In one embodiment of the invention, the guard includes spaced side walls having upper edges, front edges and lower edges; and a flexible upper -all with sine edges, a front edge, and a rear edge, the side walls being releasibly attached along at least part of their lengths to the upper wall side edges, the upper wall curving downwardly from its front edge to its rear edge when the side walls are attached. In this embodiment, the side walls are foldable onto opposite faces of the upper wall. In another embodiment, the guard includes a collapsible frame with curved bands and a cover attachable over the frame.
    Type: Application
    Filed: April 19, 2012
    Publication date: October 25, 2012
    Inventors: Brad Southerland, Brad Forrest
  • Publication number: 20120251282
    Abstract: A debris kit for a hydraulic cylinder is disclosed. The debris kit may have a base plate assembly with a slot in a length direction that is configured to accommodate sliding of the hydraulic cylinder, and an attachment feature located around at least a portion of a periphery of the slot. The debris kit may also have a flexible boot with a first end connectable to the hydraulic cylinder, and a second end connected to the attachment feature of the base plate assembly.
    Type: Application
    Filed: April 4, 2011
    Publication date: October 4, 2012
    Inventors: Ramkumar SELVARAJPANDIAN, Randy R. HAYWARD, Derek P. FURR
  • Publication number: 20120186389
    Abstract: Flat protective cover (1) with two degrees of freedom for tool machines, which can be associated with an operating member (A) movable along at least two main directions (D1, D2), includes: at least a first flat covering element (2), operatively connected to the operating member (A); at least a second flat covering element (3); guide and retaining elements (5a, 5b, 6a, 6b, 7a, 7b, 8a , 8b) to mutually couple in a sliding way the covering elements, wherein the protective cover (1) further includes an intermediate frame (4) between the first (2) and second (3) flat covering element, arranged for allowing mutual sliding of the flat elements (2, 3) along the two mutually orthogonal main directions (D1, D2), and the guide and retaining elements (5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b) include pairs of linear guides (5a, 5b, 6a, 6b) arranged for co-operating by mutual sliding with pairs of blades (7a, 7b, 8a, 8b).
    Type: Application
    Filed: September 21, 2010
    Publication date: July 26, 2012
    Applicant: LA PROTEC SRL
    Inventors: Riccardo Viola, Tommaso Viola
  • Publication number: 20120125693
    Abstract: Embodiments provide safety features for a post hole digger, such as for attachment to a tractor or other utility device. The post hole digger has a boom and a yoke for pivotally connecting to the tractor or similar device, a driveline for transmitting rotational energy, and an auger for forming holes in a ground or floor surface. Rotating features of the post hole digger are isolated by various guard members, thereby enhancing the safety of the device.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 24, 2012
    Inventors: Daniel Banjo, Chad Vernon Franke
  • Publication number: 20110247455
    Abstract: A protector for the crank arm of a bicycle fits over the outer end of the crank arm to protect the arm from damage and marring during bicycle use over rough terrain particularly when the arm hits the ground while pedaling.
    Type: Application
    Filed: January 25, 2011
    Publication date: October 13, 2011
    Inventor: Robert Densmore
  • Patent number: 7784379
    Abstract: In a cover arrangement for a machine tool for covering guide and drive structures, comprising a pleated wall arrangement which can be expanded and compressed upon movement of a carriage between which and a machine wall it is connected. The pleated wall structures is provided with armor lamellas which are anchored to the pleat sections of the wall structures and over-lap for covering the pleated wall structure which is movably supported on guide tracks which are disposed in planes extending at an obtuse angle facilitating installation and removal of the cover arrangement.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: August 31, 2010
    Assignee: Gebr. Heller Maschinenfabrik GmbH
    Inventor: Michael Schirling
  • Publication number: 20090264209
    Abstract: A guard for shielding a coupling joint joining rotating shafts includes first and second cylindrical components configured to telescopingly adjustably engage to enclose the coupling joint. The cylindrical components are made from opposing identical semi-cylindrical cover halves, each with lateral flanges, with one set of lateral flanges forming an inwardly-facing longitudinal slot for slidably receiving the other pair of lateral flanges. A fastener extended through overlapping flanges fixes the length adjustment. A pair of supports includes a vertically adjustable bracket on spaced stands, the brackets being configured to wedgingly engage the supports when secured in a vertically adjusted position thereon. The cover halves, supports and brackets can be thermoformed from heat.
    Type: Application
    Filed: March 17, 2009
    Publication date: October 22, 2009
    Inventor: William E. LaBarge, III
  • Patent number: 7377549
    Abstract: A saddle ride type all-terrain vehicle includes left and right front wheels supported independently of each other on a vehicle body such that driving power is transmitted to said front wheels by way of a pair of left and right drive shafts extending from a driving source side. The vehicle also includes universal couplings provided at opposite end portions of each of the drive shafts, covered by rubber boots. The vehicle further includes a protector for covering the rubber boots.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: May 27, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yosuke Hasegawa, Akio Handa, Masahiro Inoue, Makoto Toda, Hiroaki Tomita, Keita Yagi
  • Patent number: 7261501
    Abstract: A machine tool comprising a cabin (5) provided with side walls (1, 2) and doors (3, 4), a slide (6) for the reception of a spindle head in which tools are clamped, and with a concertina (7) serving as a roof cover, the concertina (7), by means of the slide (6), being able to be unfolded, folded up and/or transported parallel to the longitudinal side (14) of the slide (6) and perpendicular to the side walls (1, 2).
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: August 28, 2007
    Assignee: Mikron Agie Charmilles AG
    Inventors: Alexandre Condrau, Lukas Weder
  • Patent number: 7192225
    Abstract: Machine tool having a bed, a table arranged on the bed, a first saddle provided free to travel back and forth, a second saddle supported on the first saddle and provided free to travel side to side, a spindle head provided free to travel perpendicularly on the second saddle, a main spindle situated above the table and by the spindle head supported free to rotate on its center axis, a front cover provided on the front side of the bed and furnished with doors that open and close sideways, and top covers configured with one end sideways shiftably connected to the front side of the first saddle, and with another end connected extensibly/retractably to the top of the front-cover doors, therein being configured for permitting back-and-forth-directed movement of the first saddle.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: March 20, 2007
    Assignee: Mori Seki Co., Ltd.
    Inventors: Naoshi Takayama, Hikaru Ishigaki, Takayuki Akai, Nobuyuki Kimura
  • Patent number: 7020970
    Abstract: A saw guard system for enhancing the safety of use of powered hand saws by eliminating the need to hold the blade guard in a static position during the cutting operation. The saw guard system includes a circular saw with a housing, a motor positioned within the housing, a shaft extending from the motor through a wall of the housing, a blade operationally coupled to the shaft, and an upper blade guard for covering a perimeter edge of the blade above the shaft; a lower guard member pivotally coupled to the housing, a guard member motor coupled to the housing and the lower guard member for moving the lower guard member from the deployed position to the stored position; the guard member motor is operable separately from the motor of the circular saw; and a gear assembly operationally coupling the guard member motor to the lower guard member.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: April 4, 2006
    Inventor: James Welch
  • Patent number: 6692366
    Abstract: An improved protective shield for attachment to the A-arms of an ATV for preventing the intrusion of debris that may damage the suspension or CV joint. The improvements enhance the shield's ability to reduce debris build up and to be more easily cleaned by suspending the shield below the suspension members and providing washout and drainage holes.
    Type: Grant
    Filed: September 14, 2002
    Date of Patent: February 17, 2004
    Inventor: Kevin Savant
  • Patent number: 6662685
    Abstract: A splash cover is assembled to a mount of a base. A space for holding a packing is provided between the splash cover and the mount. A packing port is provided to the accommodating space. The structure allows an operator to install or remove the packing to or from the accommodating portion inside the splash cover without interference from the splash cover. Thus, installing or removing the packing can be easily performed. In addition, because the packing is invisible from outside, the appearance of the splash cover is improved.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: December 16, 2003
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuteru Kuriki, Toshio Ichino
  • Patent number: 6658966
    Abstract: A work bench includes a frame, a bench surface on the frame with the bench surface including at least two members, one of which is movable along the frame for clamping a workpiece between the members. A mechanism for moving the member includes two screws coupled with the members. The two screws are spaced with the member for moving the member upon rotation of the screws. A sprocket is coupled with each of the screws. A transmission belt or chain is coupled with the sprockets. At least one handle is coupled with one of the screws to rotate the screws. At least one clutch is coupled with the at least one screw to limit clamping pressure on the workpiece. The clutch enables rotation of one screw with respect to the other screw so that workpieces may be clamped between the members and clamping of the workpiece may be accomplished by rotation of the screws with one hand of the operator. Also, a guard may be present which covers the transmission belt or chain.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: December 9, 2003
    Assignee: Black & Decker Inc.
    Inventors: Marc A. Fortin, Murray D. Hunter
  • Patent number: 6547497
    Abstract: The present invention relates to a method and a device in the chip-removing machining of a work-piece by means of a rotatable tool with a shaft arranged in a headstock. The tool is displaceable in an axial direction both towards and away from the work-piece, and in a plane substantially perpendicular to the arbor. Arranged around a machining point is an enclosure. The enclosure has a first opening that is designed to press against the work-piece around the point to be or being machined. A second opening in the enclosure is made in a wall substantially perpendicular to the shaft. This opening is designed, during machining, to press against a plane plate arranged behind the tool and around the headstock, substantially perpendicular to the arbor, so that during machining there is a substantially enclosed space in the area around the tool and the machining point. The device includes a line for delivering cutting fluid to the machining point.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: April 15, 2003
    Assignee: Volvo Car Corporation
    Inventors: Klas-Arne Löf, Mats Andersson
  • Patent number: 6490781
    Abstract: The safety device includes an opening/closing cover which isolates a takeout part and an accommodating part of a component feeder unit from each other and which has a sensor for detecting a closed state. The component feeder unit includes the component accommodating part, a feed-out part and the takeout part, and sensors for transmission through voids common to the plurality of set component feeder units. Upon a detection by any one of the sensors during the operation of the machine, the machine is halted. For replacement of the component feeder units, a changeover switch is pressed, by which the detecting function is paused for a specified time period. Thus, a safety device which allows the component feeder units to be replaced even during the operation of the machine can be obtained.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: December 10, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazunori Kanai, Naoto Mimura, Yuji Miyata, Akira Kabeshita
  • Patent number: 6481313
    Abstract: A protective cover for a zone of a machine tool, within whose area a working part of the machine moves along an operating path. The cover comprises a plurality of cover elements consisting of a fixed cover element which can be attached to the machine, a mobile element connected to the working part and a plurality of mobile cover elements positioned between the fixed cover element and the mobile cover element. The cover elements are arranged in order of decreasing size and lie around the working part, connected to one another by a first support and guide rod and a second support and guide rod, at a given distance from one another. Between the cover elements and the rods there is a plurality of sliders designed to guide the mobile cover elements in a direction parallel to and in a direction at right angles to the rods, during movement of the working part, keeping the working zone covered.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: November 19, 2002
    Assignee: P.E.I. Protezioni Elaborazioni Industriali S.r.L.
    Inventor: Giorgio Tabellini
  • Patent number: 6408768
    Abstract: A pallet guard includes a plurality of modular pallet guard sections. Each pallet guard section comprises a connecting piece and a wall. The connecting pieces are adjustable. The walls are matable with another pallet guard section so that the pallet guard is adjustable to accommodate varying size pallets and/or spill-over merchandise on the pallet. Each connecting piece may be moveable between a first position, wherein the connecting piece is straight, and a second angled position where the pallet connecting piece forms a corner.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: June 25, 2002
    Assignee: Safe Strap Company, Inc.
    Inventors: Paul Giampavolo, Robert N. Shelton
  • Patent number: 6338192
    Abstract: The safety device includes an opening/closing cover which isolates a takeout part and an accommodating part of a component feeder unit from each other and which has a sensor for detecting a closed state. The component feeder unit includes the component accommodating part, a feed-out part and the takeout part, and sensors for transmission through voids common to the plurality of set component feeder units. Upon a detection by any one of the sensors during the operation of the machine, the machine is halted. For replacement of the component feeder units, a changeover switch is pressed, by which the detecting function is paused for a specified time period. Thus, a safety device which allows the component feeder units to be replaced even during the operation of the machine can be obtained.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: January 15, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazunori Kanai, Naoto Mimura, Yuji Miyata, Akira Kabeshita
  • Patent number: 6311817
    Abstract: A protector device for a danger zone of the machine includes two parallel slides 10 disposed along two sides of this danger zone and two normally open switches 11, 11a connected in series in the electrical supply of at least one motor of the machine. One of these switches is disposed adjacent one end of one of the slides 10 while the other 11a is disposed adjacent the opposite end of one of the slides 10. It also comprises a protector element 8 sliding in the slides and whose length is such that in service position, this protector element 8 actuates the control members of the two switches 11, 1a to close them.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: November 6, 2001
    Assignee: Nestec SA
    Inventor: Jacques Richard
  • Patent number: 6260439
    Abstract: A protective cover for a zone of a machine tool, in which a machining part moves along an operating path, preferably extending on a single plane, in said zone; the cover comprises a plurality of cover elements consisting of a fixed cover element which can be fixed to the machine, a mobile element connected to the machining part and a plurality of mobile cover elements positioned between the fixed cover element and the mobile cover element which is connected to the machining part; the cover elements are closed in a pack, each with a window, and are arranged according to decreasing size and lie around the machining part, connected to one another by a first and a second support rod, at a given distance from one another and with respective mobile cursors on the rods so as to guide the mobile cover elements in a direction parallel with and a direction at right angles to the rods, during movement of the machining part, keeping the machining zone covered.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: July 17, 2001
    Assignee: P.E.I. Protezioni Elaborazioni Industriali S.r.L.
    Inventors: Giorgio Tabellini, Walter Goldin
  • Patent number: 6260438
    Abstract: A protective cover for a zone of a machine with moving parts, in which the machine comprises a mobile machining part which moves along an operating path, preferably extending in a single plane. The protective cover comprises a first set of cover elements, which are connected to the machining part in such a way that they can move, extending away from one another so as to cover the zone and overlapping one another along a trajectory of the machining part, and a second set of cover elements, which are connected to machining part in such a way that they can move, extending away from one another so as to cover the zone and overlapping one another along a trajectory of the machining part which is different to the trajectory of the cover elements of the first set, in such a way that when the machining part moves along its operating path it draws the first and second cover means along the respective trajectory, ensuring that the zone to be covered remains covered.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: July 17, 2001
    Assignee: P.E.I. Protezioni Elaborazioni Industriali S.r.l.
    Inventor: Giorgio Tabellini
  • Patent number: 6067877
    Abstract: A safety cover structure for covering working sections such as a drive section and an operating section of an automatic machine from the exterior so as to be capable of being opened and closed to ensure safety. The safety cover structure includes a plurality of support columns arranged in a surrounding relation to the automatic machine; a top board supported horizontally on the support columns to cover the automatic machine; a safety cover disposed vertically and movably between adjacent support columns; a connecting member having flexibility and connected to the safety cover to suspend the safety cover; grooves for guiding the connecting member from the support column to the top board; a tension arm supported horizontally on the top board so as to swing horizontally in a horizontal plane along the top board and connected with the connecting member; and an urging member connected to the tension arm to urge the tension arm in a rising direction of the safety cover.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: May 30, 2000
    Assignee: Sankyo Manufacturing Co., Ltd.
    Inventor: Heizaburo Kato
  • Patent number: 5916334
    Abstract: A bottom guard for a machine having a plate with a hinged side pivotably attached to a first frame member of a machine and a catch side opposite the hinged side releasably held near a second frame member by a latching device. The plate holds debris from the operation of the machine and serves as a safety guard. The latching device has a first portion attached to the second frame member and a second portion attached to the catch side of the plate. The two portions of the latching device mechanically interlock and a solenoid actuated mechanism releases them upon a remote signal to the solenoid which allows the catch side of the plate to move by gravity, thereby opening the guard and discharging accumulated debris to a side of the machine. At least one shock absorbing device, such as an elastomeric shock cord, a pneumatic cylinder, or a hydraulic cylinder limits the amount that the plate will swing open when the catch is released and cushions the plate as it falls open.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: June 29, 1999
    Assignee: Riverwood International Corporation
    Inventors: Richard E. Balder, Carl J. Taute
  • Patent number: 5577422
    Abstract: A control panel assembly for an air conditioning system in a motor vehicle with continuously freely accessible primary actuation elements is provided with selectively accessible secondary actuation elements arranged in an installation shaft recess in the front panel section of the control panel. The recess is covered with a cover element which can be moved about a horizontal axis of rotation. In order to provide access to the secondary actuation elements, an opening movement of the cover element uncovers the installation shaft recess with the control panel of the secondary actuation elements being simultaneously moved into a position which is accessible to the vehicle.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: November 26, 1996
    Assignee: Mercedes-Benz AG
    Inventors: Oliver Beck, Martin Spengler, Manfred Ohlhausen, Dieter Heinle
  • Patent number: 5537922
    Abstract: In a printing unit of a printing press having a plate cylinder and a blanket cylinder, there is provided a combination including a press-on device having a press-on roller applicable against the plate cylinder and swivelable at a spaced distance therefrom about a swivel axis aligned parallel to respective axes of the cylinders, a finger-protection device and a blast air device for blowing air against one of the cylinders, the press-on bar having a longitudinal axis and having a plurality of rollers rotatably mounted thereon, and the blast-air device being formed of a hollow interior of the press-on bar for receiving blast air therein, and nozzle openings in the surface of the press-on bar for discharging blast air from the hollow interior thereof, the longitudinal axis of the press-on bar together with the plurality of rollers rotatably mounted on the press-on bar and the swivel axis being swivelable substantially on a plane passing through a nip between the plate cylinder and the blanket cylinder about the s
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: July 23, 1996
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Willi Becker
  • Patent number: 5538490
    Abstract: A safety bar mechanism and sheet processing device having a safety bar mechanism, with which such an accident that the operator's hand is pinched between a table and peripheral devices etc. can be positively avoided whatever direction an external force exerts. The safety bar mechanism is disposed, for example, above the table on which a sheet is stacked, and comprises detector means the upper end of which is supported on a fixed part such that the detector means pivots freely in forward/backward directions and has play in upward/downward directions. When an external force works on the detector means, thereby moving the detector means upwards, forwards or backwards, a switching means is so operated as to at least stop the upward movement of the table.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: July 23, 1996
    Assignee: Fujitsu Limited
    Inventor: Tatsuhiro Taniwa
  • Patent number: 5438943
    Abstract: A guard device for sewing machine disposed on a table composed of a first or fixed covering for covering over a lower portion of a belt, and a second or movable covering adapted to shield the belt other than that covered by the first covering. The first covering is provided with an open space or opening defined by its side walls and a lid hingedly mounted on a finger or engageable portion of a wall member of the first covering as to be self-opening or self-closing when a head of the sewing machine is in a collapsed position or in an upright position.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: August 8, 1995
    Assignee: Juki Corporation
    Inventors: Shigemasa Kato, Shigeki Okawa, Masafumi Susaki
  • Patent number: 5265497
    Abstract: A rotary deck for interchanging a pair of pallets in a machining center is partially enclosed within a guard housing surrounding the machining zone. The deck sweeps a predetermined diameter with the pallets. An operator access door is mounted to cover an opening in the housing, adjacent the machining zone. The door slides into the sweep diameter when opened and the deck is stationary; an interlock prevents deck rotation when the door is opened.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: November 30, 1993
    Assignee: Cincinnati Milacron Inc.
    Inventor: Richard A. Curless
  • Patent number: 5224916
    Abstract: The door moving mechanism of a cutting machine includes an upright support, a machine body adjacent to the upright support and a horizontal guide rail mounted on the machine body immediately above the upright support. A connecting rod slidably provided on the guide rail has a first end connected to a door, and a second rod has a first end pivotally connected to a second end of the first rod and a second end pivotally connected to a second end of the connecting rod. The first rod has a first and second lobed part formed adjacent to the pivot point and cooperatively defining a receiving space between them. A push rod is provided on a casing movably mounted on the upright support and has a free end extending into the receiving space to push one of the lobed parts when the casing travels up and down along the upright support.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: July 6, 1993
    Assignee: Leadwell CNC Machines Mfg., Corp.
    Inventor: Chien-Chun Chang
  • Patent number: 5218887
    Abstract: A drill chuck and revolving spindle guard for protecting a person operating machine with a revolving spindle comprising: a mounting bracket for attachment about a machine part having a revolving spindle; a pawl adapted to fall into a slot in a block attached to the mounting bracket; a locking block through which a threaded shaft is disposed to permit pivoting for swinging the guard in and out of working position in relation to a work-piece; a threaded shaft around which a compression spring is spirally wound to permit height adjustment of the guard; a compression spring for holding the guard in a locked position; a locking nut disposed at a base of the threaded shaft around which the compression spring is wound to hold the guard fast after height or position adjustments; a guard bracket upon which a base portion of the nut rests; a guard having a semi-circular configuration; whereby the guard bracket is attached to an arc of the semi-circular guard so that when the guard is moved to a drill change position by
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: June 15, 1993
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Norbert M. Ziobro
  • Patent number: 5183526
    Abstract: An apparatus and method are provided for facilitating manual feeding of business forms into business forms handling equipment to bypass the automatic feeder, primarily in the production of mailers from forms having pressure sensitive adhesive strips. Mounted at the interface between the conveyor and folder of the handling equipment is a transparent plastic plate having a slot with forms guides, and a forms centering scale adjacent the slot. A finger opening in, and an upstanding finger tab on, the quadrate plate may be provided to allow it to be lifted out of place covering the interface area between the conveyor and folder. An interlock engaging projection is provided on the plate for stopping operation of the equipment when it is removed. One may bypass the automatic feeding of the conveyor by manually inserting forms into the slot guided by the forms guides.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: February 2, 1993
    Assignee: Moore Business Forms, Inc.
    Inventor: George E. Walter
  • Patent number: 5152208
    Abstract: A trimming apparatus for edge trimming books including a trimmer knife assembly and a conveying apparatus for conveying the books along a path of movement into aligned relationship with the trimmer knife assembly. The conveying apparatus includes a pair of horizontally extending endless conveyor chains positioned in parallel on adjacent sides of the path of movement and including outwardly extending pusher members for engaging longitudinal edges of the books and moving them along the path of movement. A pair of vertically extending guide members are positioned laterally outwardly of the endless chains for engaging the ends of the books and moving them into proper lateral alignment with the path of movement.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: October 6, 1992
    Assignee: K. S. Macey Machine Company, Inc.
    Inventors: Rudolph H. Ruetschle, Philip A. Yakovac
  • Patent number: 5147268
    Abstract: A folding box gluing machine to be used for the production of packages is provided with a lateral wall situated on the operator's side of the machine which consists of a plate making up the machine frame. The plate has several apertures providing access to, and inspection of, the inner machine area. The full or closed areas of the plate are covered up by hollow panels in which the machine components can be lodged. The apertures are closed by transparent panels which are removable and are provided with safety detectors preventing the machine operation as long as they are not closed. The height of the panels is sufficiently high so that the wall will be able to ensure a noise absorbing or blocking effect.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: September 15, 1992
    Assignee: Bobst SA
    Inventor: Cesar C. Cermeno
  • Patent number: 5123149
    Abstract: A turret tool post for a machine tool has a turret having a plurality of turret faces each equipped with a tool for machining, a turret shaft for rotating the turret, a cam follower provided on the turret shaft, a cam having a cam surface engaged with the cam follower to cause the cam follower to rotate, and an indexing motor for driving the cam to index the turret faces. A straight raceway portion is formed on the cam surface of the cam so that the cam follower is not driven to rotate through a predetermined angle. Also disclosed is an apparatus for controlling indexing of the turret tool post which has a turret controller for controlling the rotation of the indexing motor. The speed of the indexing motor is controlled in accordance with whether a door attached to a cover covering the turret and other elements is open or closed.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: June 23, 1992
    Assignee: Hitachi Seiko Co., Ltd.
    Inventors: Satoru Togawa, Mikio Kobayashi, Takanobu Sato, Takayuki Nagasawa, Akira Koshio, Thuneo Orui
  • Patent number: 5062319
    Abstract: A sheet rolling machine including a plurality of parallel cylindrical rolls has mounted forwardly thereof a guard structure, wherein the guard structure utilizes an upper and lower parallel arrangement of semi-cylindrical members. The members may optionally include adjustable linkage and magnetic mounting means.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: November 5, 1991
    Inventor: Edward A. Beckner
  • Patent number: 4999895
    Abstract: A cover unit for covering an external face of a machine tool. The cover unit is formed with small opening for allowing a workpiece to pass therethrough. The cover unit is also formed with a large opening for facilitating maintenance to the machine tool. The small opening is selectively closed by a first closure means to avoid scattering of the cutting chips and machining liquid toward outside during machining to the workpiece. The large opening is selectively closed by a second closure means during machining to the workpiece.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: March 19, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Akira Hirose, Toshiyuki Takei