• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An operator safety device includes a plurality of covers for covering parts of a machine to protect an operator against contact with these parts when the machine is in operation. At least some of the covers are movable between a closed position where the covers do not cover these parts and the latter are readily accessible and constitute a danger of accidents. A switch is operable for shutting down the machine when at least one of the covers moves from the closed into the open position. A linkage connects the covers with the switch for actuating the latter whenever at least one of the covers moves from the closed into the open position.
    公开号:SU943014A1
    申请号:SU797770453
    申请日:1979-02-13
    公开日:1982-07-15
    发明作者:Ханс Йоне；Арндт Йентцш；Лотар Шмидт；Вольфганг МЮЛЛЕР；Манфред Функе
    申请人:Феб Полиграф Лейпциг (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to a protective device, in particular in printing machines, to prevent injury to service personnel in the area of bridges between the printing devices by means of a flat coating protecting a hazardous area interacting with limit switches. The invention is applicable to all manufacturing and processing machines in which dangerous mes- 10 that are protected by a flat cover.
    Hazards in printing presses are covered by protective devices. When you open these devices, the machine should be restored as soon as possible. In order to achieve such a function control, protective switching devices preferably have electrical switching contacts (end switches-20 li). Based on the limited area of bridges between the printing devices, several hinged covers are used to cover these dangerous places.
    Known protective devices with several covers in the area of bridges in which each cover is connected to a limit switch, and electrical switches are provided as limit switches, in which the deviation of the switch pushers in both directions from the operating position affects the switching circuit [/ J The disadvantage of such devices is that they are expensive (for each cover, a limit switch and the electrical connection of these limit switches), and fail due to a simple imitation the protective device by the maintenance worker by pressing or jamming the pushrod of the limit switches. In addition, if the spring breaks, there is a danger of turning on the machine itself with the protective device open.
    Protective devices with so-called forced interrupts are also known. Moreover, when folding over
    switchgear, rigidly mounted on it, rotates around the axis of rotation and a switch is actuated by the distribution cam to stop the machine [2]
    The disadvantage of these devices is that they are not applicable for the bridges of printing machines with protective devices in the form of double covers. t
    Nel invention - the creation of a protective device that eliminates the deliberate bypass fuse.
    The basis of the invention lies in the task of finding a protective device with a double cover for the bridges between the printing devices of the printing press, in which the machine stops if one or more covers are tilted out of position fixing. The problem is solved in that the front cover of the double cover, which is located in the area of the bridges between the foaming devices and / or between the feeder and the first printing device 25 and / or between the last printing device and the output device, is pivotally connected to the main cover located in turn, also rotary. Aegi both covers are connected together with a rotatable distribution cam, and a distribution cam with a power closure is connected to the limit switch.
    In another embodiment, at pe- lid 35 is rigidly Independent user management rgchag sliding rolling on the cam, the main cover is connected via a lever mechanism with a rotary distributor arranged I cam control cam and coupled to the limit switch with force closure.
    The distribution cam has an arc-off surface (when the pusher contacts this part of the distribution cam, the limit switch pusher is pressed and the machine stops) with a recess for the working position (when the pusher comes in contact with the recess of the distribution cam, the pusher is outside and the machine is working).
    In another embodiment of the invention, in addition to the double cover. · There is a side cover, which is a lever (with a mechanism 55 m connected to a switching cam, which is located on the same axis as the distribution cam and is also connected to the limit switch with a power circuit.
    In another embodiment of the invention, the front and the main cover are connected by means of a hinged four-link, and the beam through the middle cover is connected to the distribution cam
    In another embodiment, the front cover is connected to the distribution kula'gks · chain or the like
    By means of a solution, the machine is forcibly stopped when one or several covers are lifted, and the manual termination of the action of the electric safety lock of the protective device is especially questioned.
    In FIG. I shows a sheet-fed rotary offset printing machine with a schematic representation of a protective device; Fig. 2 _ protective device; in FIG. 3 - same, top view; in FIG. 4 position a - e of the individual covers of the device; in FIG. 5 is another structural form of the device, in a schematic representation; on Fig, 6 is another variant of the structural form of the device, in a schematic image · '.
    Between printing devices - there are passages 28 above the feeder 26 and between the printing device 25 and the output device 27. These passages 28 are used to perform a variety of work. There are protective devices in the passages that are simultaneously used as bridges. According to FIG. 2, the main cover 2 is pivotally located on the traverse, and the front cover 3 is rotated again at the main cover. The main cover 2 and the front cover 3 are located on the rods 4 located on both sides between the walls of the machine. The side cover 6 is also pivotally on the traverse 1, The control lever 7 is fixedly connected to the front cover 3 and carries the roller 8. The roller 8 lies in the plane of the rolling cam 9. On the main cover 2 is the lever Yu which is pivotally connected to the connecting rod 11, which, in turn, rnirno redistributive connected to cam 12.
    In the closed state of the double cover and 3, the cam 12 is in such a position that the pusher of the limit switch 13, which carries the roller, is freely located in the recess 5 of the cam 12.
    943 014 6
    On the side cover 6 fixed there is an intermediate lever 14, which is pivotally connected to the intermediate connecting rod 15, which, in turn, is pivotally connected to the one shown in 5 of FIG. 2 by the switching cam 16. The distribution cam and the switching cam 16 have a common axis 21.
    The roller of the pusher 29 of the limit switch 13 lies in both planes of the cam , 0 of the grooves 12 and 16. The cam 16 has, similarly to the distribution cam 12, a recess 5, in which the roller of the pusher 29 of the limit 15 switch 13 is located in the nominal position of the side cover 6 FIG. 4 shows the possible positions of the covers 2, 3 and 6 and the related operating positions of the mechanisms controlling the cams 12 and 16. 20
    In position 4 about there are covers 2 and 3 in the closed position.
    If the front cover 3 (position 4 ζ) is translated, the main cover 2 is slightly lifted automatically by means of the control lever 7, roller 25 8 and rolling cam 9. By this, the hinged four-link closure formed from the lever 10, connecting rod 11 and distribution cam 12 is brought into a new 30, the position is such that the pusher 29 of the limit switch 13 is pushed by turning the cam 12.
    The called command is used to stop the machine or switch to the 35 minimum speed.
    If. lift the lids 2 and 3 together (position 4 · $), then through a similar articulated four-link (lever U, connecting rod 11, cam 4 0 cam 12), further rotation of the cam 12 starts, during which the pusher 29 of the limit switch 13 remains pressed.
    At position 42, the side cover 6 is in the closed position. When the side cover 6 is moved to position 43 by the articulated four link 14, 15 and 16, the switching cam 16 is turned so that the pusher 29 5 θ of the limit switch 13 is pressed and, regardless of the position of the distribution cam 12, a stop command is issued for the machine.
    FIG. 5 shows another embodiment of the ocy- i5 procession for protecting the pass covers of a press. When the front cover 3 is turned over by means of two successively connected articulated four-linkers (insert linkage 17, insert link rod 18, rocker arm 19, middle connecting rod 20, distribution cam 12), the distribution cam is rotated so that the pusher 29 of the limit switch 13 is pressed and a machine stop command is called. When caps 2 and 3 are rotated together upwards, the distribution cam 12 is rotated further by means of the articulated four link (rocker 19, middle connecting rod 20, distribution cam 12), so that the pusher 29 of the limit switch 13 remains pressed.
    Another embodiment of the invention for protecting passage covers of a printing press is FIG. 6. Here, due to the translation of the front cover 3 by means of the adjusting lever 22 of the chain 23, the guide rollers 24 and the sprocket segment 30, the distribution cam 12 rotates, which in the same way as in FIGS. 2 and 5 presses on the push rod 29 of the end switch of the chagel 13. Then follows the rotation of the cam 12. In this case, the pusher 29 of the limit switch 13 remains pressed.
    The spring pulls the chain 23 in any positions of the covers 2 and 3.
    If, with all the described options, the return spring of the pusher 29 of the limit switch 13 breaks, then this breakdown is equal to the pressure of the pusher and the machine · automatically stops.
    The operation of the described protective devices for pass covers of printing machines cannot be stopped without force.
    权利要求:
    Claims (2)
    [1]
    one
    The invention relates to a protective device, in particular in printing machines, to prevent injury to maintenance personnel in the area of the walkways between the printing devices by protecting the dangerous place of the flat surface that interacts with limit switches. The invention is applicable to all processing and processing machines in which hazardous areas are protected by a flat coating.
    Dangerous places of the printing presses are covered with protective devices. When opening these devices, the machine should oc-i5 be installed in the first term. In order to achieve this imbalance} 1 functionally, the protective switching devices preferably have electrical switching contacts 1 (limit switches 20). Based on the limited area of the walkways between the printing devices, several hinged covers are used to cover these dangerous places.
    2
    Multiple-winged safety devices are known in the gangway area, in which each cover is connected to the end of the BbFNi switch, and electric switches are provided as limit switches, in which the deviation of the pushers of the switch in both directions from the working position affects the switching circuit G / - / Disadvantage Such devices consist in the fact that ОШ1 are costly (for each cover - the limit switch and the electrical connection of these koitsevyh switches), and fail due to simple Protecting the protective device by the service worker by pushing or jamming the push switches of the limit switches. In addition, in the event of a spring breakage, there is a danger of the machine starting up with the protective device open.
    Protective devices are also known with a so-called alarm interrupt. At the same time, when the closing grip of the squeeze-out device is distributed, a lacquer rigidly fixed on the NBM turns around the axis of rotation and distributes 1 4 4 the cam actuates a switch, which is set to t hen 7. The disadvantage of these devices is that They are suitcaps for bridgeheads of printers on machines with double-cap zapstnyt / t devices, Zero Invention - a protective device has been created that eliminates the intentional transfer of safety of bodies above. The basis of the invention is ohm (to go through a device with a double crp, and; a bridge for between the printing devices of the printing machine, at which the machine stops, if one or more covers are folded back from the latching position. The problem is that the front cover of the double wing, which is located in the area of the walkway between the printing devices and / or between the cover plate itself and the first printing device and / or between the last patch device and the output device, it is vertically connected to the main cover located This is also a door, Egi both covers are connected together with a cam that is rotatably located, and a power distribution cam with a power closure is connected to a Limit Switch. In another embodiment, the invention on the front cover is rigidly controlled, sliding on the roll, the main cover is connected by means of a lever mechanism with a rotatable distributing cam, and the distribution cam is connected to a switch with a power closure. The distributor cam has an arcing disabling surface (when the pusher makes contact with this part of the distributor cam, the end pusher is pushed and the machine stops) with a notch for the working position (when the pushrod comes into contact with the distributor-notch of the cam, it slips outside and the machine works). In another embodiment, the invention is in addition to a double lid. The side cover is located which is more than 55
    The mechanism is connected with a switching cam, which is located on the same axis as the distribution cam and
    The 29 x switch 13, the carrier roller, is freely located in the recess 5 of the distribution cam 12. is also connected to the end switch with a force closure. In another embodiment of the invention, the front and main cover are connected by means of a hinged four-earticular ring, and the rocker arm through the middle cover is connected to the distribution cam R In another variant, the front cover is connected to a cleaved chain by a kulatko-chain or the like. By means of a solution, the machine is forcibly stopped by either worn or carried There are two covers, and a double-cut manual termination: IKK safety guard Z1-PM control device, HA ft-t is shown (: This is a custom offset printing device with a schematic image of the security device; FIG. 2 shows a smart device; FIG. 3 - the same, vits sverkhu; fig, 4 postavlesh a - 5 oglsot'yi / x kr: device necks; fig. S - a different .tivnaya form of the device, in -lecKOM image; on fn, in - another variant of the constructive form devices, in the schematic of the image. Between typing mustache three. -. Above the pump feeder 26 and the press {device 25 and the rotary device / device 27 there are 28 passages, This pass 28 is used for;: L5 A wide variety of different works, There are a wide range of devices located at 28 that are one time usex ;; as a walkway. Figure 2, 2n traverse 1, is positioned at a time (main arm 2, and front cover 3 is rotated again at the main cover. The main cover 2 and the front cover 3 are located on the sides between the machine walls and the rods. The side cover 6 is also located pivotally on the traverse 1. With the front 3, the control lever 7 is fixedly connected, carrying the end of the ro ... And; V. The roller B lies in the plane of the rolling cam 9, Rnpag 10 is fixedly located on the main lid 2, which is attached to the igatuy 11 which in turn pivotally connected to the redistribution cam 12. In the closed state of the double lid 2 and 3, the distribution cam 12 is in such a position that the nausea On the side lid 6 is fixed, there is an intermediate lever 14, which is pivotally connected to the intermediate connecting rod 15, which, in turn , pivotally connected to the switching cam 16 shown in Fig. 2, the rasfefed helical cam and the overdrive cam 16 have a common axis 21, the roller of the push rod 29 of the limit switch 13 lies in both planes of the cams 12 and 16. Cam The switching 16 has, similarly to the distribution cam 12, a recess 5, in which in the nominal position of the side cover 6 there is a roller of the pusher 29 of the limit switch 13, 3 of FIG. 4 shows the possible on the bed: -yy; the keys 2, 3 and 6 and the related operating positions of the mechanisms controlling the cams 12 and 16. In position 4a there are wings 2 and 3B of the closed position. If the front cover 3 (position 4 $) is transferred, then automatically by means of the control lever 7, the roller and the roll cam, the main bracket 2, the hinged four star, the connecting rod 11 and the distribution cam 12, is driven to a new position so that the pusher 20 of the end switch 13 is turned by the rotation of the cam 12: The invoked command 1 is used to stop the machine or switch to minimized revolutions. IF, if the covers 2 and 3 are reattached (stand 4b), then by means of an analogical four-piece ball gear {lever 10, connecting rod 11, distribution cam 12), the further rotation of the distribution cam 12 begins, during which the push rod 29 of the end flap 13 remains pressed. In position 4. the side cover 6 is in the closed position. When the side cover 6 is moved to the position by means of an articulated four-link 14, 15 and 16, the switching cam 16 is rotated so that the push rod 29 of the limit switch 13 is pressed and the kezavlo from the control cam 12 is called, the command for MaiiJHHhi is called. FIG. 5 shows a variant of the design of the seal cover of the printing machine. When the front cover 3 is turned over by means of two successively engaged articulated connecting parts (insertion lever 17, insertion connecting rod 18, rocker 19, middle connecting rod 20 distributing cam 12), the distributing cam rotates so that the pusher 29 of the limit switch 13 presses and the machine stops the command. When combined, the covers 2 and 3 are turned upwards through the control cam 12 (rocker arm 19, middle connecting rod 2O, control box 12) by means of a four-way control arm, so that the pusher 29 of the limit switch 13 remains pressed. Another embodiment of the inventive .sh to protect the fuser covers is represented in FIG. 6. Here, due to the translation of the front cover 3 by means of the setting lever 22 of the chain 23, the guide rollers 24 and the segment of the star wheel AO, the cam 12 is turned, which is similar to that in FIG. 2 and 5, puts pressure on the pusher 29 of the terminal out- v valve 13. Then follows the turn of the distribution cam 12. At the same time, the push rod 29 of the sew switch 13 remains pressed. The tension is pulled on the chain 23 at any positions of the covers 2 and 3. If, in all the described embodiments, the return spring of the push rod 29 of the limit switch 13 breaks, this breakage is equal to the pressure of the push rod and the machine automatically stops. The operation of the described protective devices for the covers of the passages of the printing presses cannot be stopped without force. 1. Protective device, in particular in printed trousers, to prevent injuries to your maintenance personnel in the area of the walkways, containing flat surfaces covering dangerous places, hazardous areas with KosmenbiNw ltl) 1: and so that, in order to create a protective device that eliminates the intentional and unintentional interlocking of the safety device, the front cover of the double cover is pivotally connected to the main cover which is rotatable, and the covers are connected to the notiopoTHo distribution box. nym cam and of distribution; Soodinon cam with end B; Key with power closure. 794 2, The device according to p. I, which is enumerated by the fact that the Hatiepepflet lid rigidly houses the control lever that slides on the rolling roll, and the main lid is connected to a control cam which is rotatably located on the lever. 3, The device according to claims 1 or 2, about the fact that in the arcuate switching-off surface of the distributor cam a notch is provided for the working position, 4, The device according to a PP, I or 2, which is due to the fact that the push rod of the limit switch is in the working position: outside, 5, A device according to claims, I or 2, which is characterized by the fact that in the passage zone next to the double lid there is a swiveling side, 6, A device according to PP, I or 2 and 5, which is characterized by the fact that the side cover is by means of a lever The mechanism is connected to a reloop cam, which is located on the same axis as the distribution cam, and also with force closure, is connected to a limit switch, 7. The device according to claim I, is connected with the fact that the front and main covers are connected by means of an articulated four-sided element , and the rocker is connected by the middle connecting rod of the connecting rod with the cam 12, 8. The device according to claim 1, so that the front cover and the cam are connected to each other by means of a chain or a goma like. The sources of information taken into account in examination I, Patent of France N9 2247349.
    [2]
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU943014A1|1982-07-15|Protective apparatus,rt in printing machine
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    GB1491813A|1977-11-16|Mechanism for controlling safety guard or protective cover respectively on printing machines
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    EP1069582A4|2004-03-24|Safety switch
    GB2321784A|1998-08-05|Switch assemblies
    US4854233A|1989-08-08|Protective device on rotary printing presses
    US6667449B2|2003-12-23|Switch hinge
    IE822653L|1983-05-23|Circuit breaker
    EP0729165B1|2001-08-22|Interlock mechanism for a key operated door switch
    US2950363A|1960-08-23|Safety handle for enclosed switches
    KR900006460B1|1990-08-31|Apparatus with a device for selective blocking of one or more position of a manual control element
    GB2304632A|1997-03-26|Guard provided at a printing machine
    US4656322A|1987-04-07|Electrical switching device
    GB1531971A|1978-11-15|Textile machines
    GB2288861A|1995-11-01|Machine guard
    US2200316A|1940-05-14|Control apparatus for printing machines
    JPH03264461A|1991-11-25|Automatic document dispensing machine
    CA2189815A1|1997-05-25|Safety switch device
    KR200166283Y1|2000-01-15|Driving seat safety apparatus for heavy equipment
    US4681988A|1987-07-21|Switch selector mechanism
    JPS61181671A|1986-08-14|Printer
    KR200253056Y1|2001-11-17|Safety closing device for electric pressure cooker
    同族专利:
    公开号 | 公开日
    GB2017251B|1982-09-08|
    DE2854672C2|1987-10-15|
    DD134933A1|1979-04-04|
    DE2854672A1|1979-09-20|
    CS222959B1|1983-08-26|
    US4276827A|1981-07-07|
    SE7902347L|1979-09-17|
    GB2017251A|1979-10-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT17933B|1903-12-22|1904-10-10|Friedrich Haeusgen|
    US2568002A|1949-09-13|1951-09-18|Royal Typewriter Co Inc|Cover controlled safety switch mechanism for power operated typewriters or like machines|
    GB919511A|1960-07-28|1963-02-27|Alfa Romeo Spa|A device controlling the lighting of lamps inside motor vehicles and the like|
    US3209634A|1962-11-02|1965-10-05|Houdaille Industries Inc|Switch interlock structure|
    US3428766A|1966-12-01|1969-02-18|Gen Electric|Switch mechanism for cabinet|
    US3543905A|1967-10-14|1970-12-01|Olivetti & Co Spa|Switch control and keyboard locking device for an electric typewriter|
    US3780242A|1972-02-09|1973-12-18|Robbins And Bendror Ass Inc|Safety device for industrial machines with improved mechanical sensor and associated circuit breaker assembly|
    DE2350827C3|1973-10-10|1980-01-10|Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg|Safety switch on a protective cover for moving parts of a work machine|
    US3881077A|1974-03-11|1975-04-29|Cutler Hammer Inc|Refrigerator-freezer, two-door operated switch|
    DE2430536C2|1974-06-26|1981-03-19|M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach|Device for securing protective grids or protective covers on printing machines|
    US3899062A|1974-10-31|1975-08-12|Raymond L Ward|Fail-safe disengagement mechanism|
    US4002869A|1975-05-08|1977-01-11|International Telephone And Telegraph Corporation|Automatic high voltage grounding device for personnel safety|DE3112719A1|1981-03-31|1982-10-14|Feinwerktechnik Schleicher & Co, 7778 Markdorf|LOCKING INDICATOR FOR THE DOOR OF A BALE PRESS|
    DE3115475A1|1981-04-16|1982-11-04|M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach|PROTECTIVE DEVICE ON ROTARY PRINTING MACHINES|
    DE9105324U1|1991-04-30|1991-06-13|Man Roland Druckmaschinen Ag, 6050 Offenbach, De|
    DE9317970U1|1993-11-24|1994-01-20|Roland Man Druckmasch|Protection device for printing machines|
    DE19507992C1|1995-03-07|1996-08-22|Roland Man Druckmasch|Safety device for a printing machine|
    DE19752342B4|1997-11-26|2007-04-19|Koenig & Bauer Ag|Protective device on printing machines|
    DE10051367B4|1999-11-09|2012-10-04|Heidelberger Druckmaschinen Ag|folding device|
    ES2218302T3|2000-05-16|2004-11-16|Komori Corporation|SECURITY DEVICE FOR ROTARY PRINTING.|
    JP2008105303A|2006-10-26|2008-05-08|Komori Corp|Rotor protecting apparatus|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD78204213A|DD134933A1|1978-03-16|1978-03-16|PROTECTIVE DEVICE, ESPECIALLY FOR PRINTING MACHINES|
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