EP0611710A2 - Dispositif pour laisser libre la piste du trajet de convoyage de l'installation d'un transporteur aérien en cas d'alarme - Google Patents

Dispositif pour laisser libre la piste du trajet de convoyage de l'installation d'un transporteur aérien en cas d'alarme Download PDF

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Publication number
EP0611710A2
EP0611710A2 EP93117223A EP93117223A EP0611710A2 EP 0611710 A2 EP0611710 A2 EP 0611710A2 EP 93117223 A EP93117223 A EP 93117223A EP 93117223 A EP93117223 A EP 93117223A EP 0611710 A2 EP0611710 A2 EP 0611710A2
Authority
EP
European Patent Office
Prior art keywords
conveyor
drive
rail
pawl
pawls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93117223A
Other languages
German (de)
English (en)
Other versions
EP0611710B1 (fr
EP0611710A3 (fr
Inventor
Udo Lübbecke
Ralf Schneuing
Gerhard Schilling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duerkopp Adler AG
Original Assignee
Duerkopp Adler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Duerkopp Adler AG filed Critical Duerkopp Adler AG
Publication of EP0611710A2 publication Critical patent/EP0611710A2/fr
Publication of EP0611710A3 publication Critical patent/EP0611710A3/fr
Application granted granted Critical
Publication of EP0611710B1 publication Critical patent/EP0611710B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B10/00—Power and free systems
    • B61B10/02—Power and free systems with suspended vehicles
    • B61B10/025—Coupling and uncoupling means between power track abd vehicles

Definitions

  • the invention relates to a device for keeping the conveyor section of a overhead conveyor system in the event of an alarm, in particular the conveyor section of a fire door.
  • a overhead conveyor system for transporting conveyed goods on trolleys along a conveyor line in which trolleys are guided on a running rail and transported by a pull chain through the working area of a fire protection door.
  • a case which becomes effective when the overhead conveyor system is switched off is provided in order to put the trolley into a free-running state so that it can subsequently be moved out of the area of the fire door with an auxiliary drive independent of the power supply.
  • a chain conveyor of a monorail is known in which rail-guided trolleys can be connected to a conveyor chain via driver pawls.
  • the driver pawls are displaceably connected to the conveyor chain and can be operated by ramps which are arranged along the conveyor track and can be displaced into a rest and working position.
  • the invention is based on the object of specifying a device for keeping a conveyor section area of a overhead conveyor system free in the event of an alarm, with which a safe operation is ensured even in the event of incorrect switching operations and damage to the overhead conveyor system is avoided.
  • the object is achieved by the features of claim 1.
  • the device according to the invention makes it possible to grasp a conveyor carriage located in the conveyor section area to be kept free and to move it out of the conveyor section area under controlled movement. This is made possible irrespective of whether the running track in the conveyor track area is arranged on an incline or with an incline or horizontally for the trolleys. This has the advantage that the device according to the invention in no way limits the design of the conveyor section area to be kept free.
  • the design of the device with the features of claim 2 leads to a space-saving construction, which also allows retrofitting of already installed overhead conveyor systems. This also ensures that the auxiliary drive can be arranged near the center of gravity of the trolley, so that no lateral forces are exerted when the trolley is moved.
  • the further embodiment with the features of claim 4 allows the running rail to be used simultaneously as a cover for gear parts of the auxiliary drive as a dirt deflector or protective cover.
  • the embodiment according to claim 5 has the advantage of an inexpensive design which can also be controlled in the event of a failure of the mains power supply.
  • a drive is proposed in which an energy supply can be dispensed with while the auxiliary drive is working.
  • the features of claim 7 lead to independent controllability of the auxiliary drive.
  • the formation of the carrier with the features of claim 8 is achieved that the carrier can be used in the conveyor plug area regardless of the course of the overhead conveyor system.
  • the overhead conveyor system 1 shown in FIG. 1 has a chain channel 2 which, according to FIG. 2, is designed with a substantially square tubular cross section including an opening 3.
  • the chain channel 2 is fastened to holding parts 4 and 5, which are screwed to an anchor 7 fastened to a ceiling 6.
  • According to the anchorage 7 are further anchors 8 and 9 attached to the ceiling 6, which in turn receive the chain channel 2 via holding parts not shown according to the design of the holding parts 4 and 5.
  • one end 11 of a support 12 made of U-shaped steel is fastened to the holding part 5.
  • the free end 13 of the carrier 12 is welded to an arm 14 extending at right angles thereto, which in turn is made of U-shaped steel.
  • a firmly welded block 15 is located on the carrier 12 in the region of the connection point of the arm 14 to the end 13.
  • the carrier 12 is also formed with an attachment 16 as a fastening point, which is firmly welded.
  • Beams 17 and 18 are screwed to the anchors 8 and 9 and correspond to the beam 12 in their design.
  • the chain channel 2 there is a pull cord in the form of a conveyor chain 19 which is drivingly connected to a main drive as the drive motor M.
  • a pull cord in the form of a conveyor chain 19 which is drivingly connected to a main drive as the drive motor M.
  • Approximately every third chain link 20 extending parallel to the carrier 12 is penetrated by a bolt 21 from the conveyor chain 19.
  • rollers 22 and 23 are pressed, which are designed as fat-sealed deep groove ball bearings.
  • the rollers 22, 23 are dimensioned in their outer diameters such that they are accommodated in the interior of the chain channel 2 with play of one to two millimeters.
  • the rollers 22, 23 rest on the lower side of the chain channel 2.
  • a support arm 25 is attached to the conveyor chain 19.
  • the support arms 24 and 25 have a certain one another Distance in order to movably receive a driver 27, which will be described below, between them in each case via a positive connection 26.
  • support arms 28, 29 for receiving an ejector 30 and support arms 31 and 32 for receiving a driver 33 are provided on the conveyor chain 19 approximately at a distance of 80 centimeters.
  • a running rail 34 is arranged on the supports 12, 17 and 18, which is made of approximately 2.5 millimeter thick steel sheet and has the cross section shown in FIG. 2. Accordingly, the track 34 is formed with an interior 35 and a semicircular track 36. According to FIG. 2, the running rail 34 rests on the arm 14 and is fastened to the supports 12, 17 and 18 with a screw 37, for which purpose the running rail 34 is provided with corresponding bores, which are not described in more detail. Furthermore, a rail 38 is screwed to the lugs 16 of the supports 12, 17 and 18 with screws 39. The rail 38 of finite length and rectangular cross-section is thus invariable in position, i. H. arranged stationary and thus extends parallel to the chain channel 2 or to the running rail 34 (FIG. 1).
  • Each driver has a carrier 40 made from a U-shaped sheet metal profile, to which webs 41, 42 each having a U-shaped design are welded in the region of its ends. Both webs 41, 42 are formed with a rectangular cutout (not designated), which is part of the positive connection 26. Furthermore, pawls 43 and 44 are received on the carrier 40 within its U-shaped cross section and in the region of its ends, each of which are rotatably mounted on a bolt 45. These The arrangement is such that the pawls 43, 44 assume the positions drawn with regular lines in FIG. 5 due to their own weight.
  • the pawl 43 is formed with an end 46 extending towards the running rail 34 and the other end with a cam 47 which limits the pawl 43 when rotated clockwise. Accordingly, the locking blade 43 is shown in FIG. 5 with visible lines, while the dash-dotted position shows a position of the locking pawl 43 rotated in the counterclockwise direction.
  • the pawl 44 also has the structure of the pawl 43.
  • the pawl 43 is further provided with a pin 48 which projects into the area of the rail 38. The arrangement is such that when the pin 48 engages with the rail 38, the pawl 43 is pivoted counterclockwise such that the pawl 43 and the rail 38 assume the positions shown in FIGS. 2 and 5 with dash-dotted lines .
  • the structure of the ejector 30 corresponds to that of the drivers 27, 33, although the ejector is only equipped with a pawl corresponding to the pawl 44.
  • a roller 49 is received, which is designed with a semicircular recess (not designated) corresponding to the track 36.
  • the roller 49 is provided with a deep groove ball bearing, not shown, through which a bolt 50 extends.
  • the bolt 50 is fixed in cheeks 51, 52 of a roller bearing 53.
  • the cheeks 51 and 52 are connected to one another by webs 54, 55, so that the cheeks 51, 52 in connection with the webs 54 and 55 surround the roller 49 in the manner of a square tube.
  • An arm 56 extends from the roller bearing 53 at a distance of two to three centimeters down to the running rail 34, where the arm 56 ends in an angled end 57.
  • a web 58 is welded to the arm parallel to this end 57. Aligned bores (not shown) of the same diameter are made in the end 57 and the web 58, in which rotatably tapered lugs (also not designated) of a rod 59 are rotatably but axially fixed.
  • the rod 59 is part of a trolley 60.
  • the rod 59 is U-shaped, the free end of the rod 59 in turn ending in an arm corresponding to the arm 56 with a roller.
  • the rod 59 is formed with a tube part 63, which extends parallel to the chain channel 2 or the running rail 34 and on which items in the form of clothing 64 are suspended by means of brackets 65.
  • the trolleys 60 and 61 are located on the running rail 34 in such a way that the roller bearings 53 running in the front in the transport direction T are positioned between the pawls 43 and 44. Because of the running rail 34 with an incline, the roller bearing 53 with the web 55 abuts the end 66 of the pawl 44.
  • a rectangular support bar 67 is also fastened to the supports 12, 17 and 18 with the aid of the screws 37, each having the cross section shown in FIG. 2 at the fastening points.
  • a geared motor 68 is fastened to the support bar 67 with screws 69, the heads of which are sunk into corresponding recesses in the support bar 67 are (Fig. 4).
  • the geared motor 68 is formed with a shaft 70 on which a ring gear 71 is fixed.
  • the support bar 67 is formed at its end 72 facing the carrier 18 with a bearing, not specified, in which a shaft 73 is rotatably received.
  • a ring gear 74 is fastened to one end of the shaft 73 and, in conjunction with the ring gear 71, serves to receive an endless tension member in the form of a roller chain 75.
  • the roller chain 75 is guided on a bar 76, which is fastened to the support bar 67 together with lateral bar parts 77 and 78 by means of screws (not specified).
  • the arrangement of the strips 76, 77, 78 explained is achieved in that the running rail 34 is formed in the areas of the toothed rings 71, 74 with free cuts (not designated) according to FIG. 4.
  • the components described, such as the sprockets 71, 74 and the roller chain 75 form a drive part.
  • pawls are rotatably received and axially secured at the same distance from, for example, seven chain link lengths, in each case on the chain link bolts (not designated) and in each case on both sides of the roller chain. This is indicated by the representation of a pawl 79 in different positions in FIG. 3.
  • the geared motor 68 is electrically connected such that it rotates the associated ring gear 71 in the clockwise direction with a corresponding power supply.
  • the pawls 79 rotatably mounted on the roller chain 75 reach the position of the lower chain center 80, the pawls 79 hang down due to their own weight.
  • the roller chain 75 is in a position in which the pawls are located on an upper chain center 81 positioned in the interior 35 of the running machine 34, the pawls assume a horizontal position as a result of their support on the strip parts 77, 78, such as this is indicated by the dashed pawl 79 in Fig. 3.
  • the constructive arrangement of the web 58 with respect to the pawls 79 is such that the latter engage with the web 58 in a corresponding position, so that the trolley 61 is entrained in the transport direction T under certain conditions Conditions, as will be described below, can take place.
  • the ceiling 6 closes a building room 82 and a building room 83 towards the top. Both building spaces 82, 83 are separated by a wall 84, in which a door opening 85 is formed with a lintel 86 which delimits them upwards.
  • the size of the door opening 85 can be designed correspondingly or larger for the passage of the overhead conveyor system 1, including the clothing items 64 to be transported in the transport direction T, in order to also allow unimpeded passage of people.
  • the described ceiling 6 and wall 84 including the lintel 86 are made of masonry in the usual way.
  • a door sliding bearing 87 is fastened to the lintel 86, in which a left door half 88 and a right door half 89 are slidably received.
  • the door halves 88, 89 are made of fire-resistant material and together form a fire door.
  • the door halves 88, 89 are recessed in their areas from the chain channel 2 to the running rail 34 according to FIG. 2.
  • the working area of the door halves 88, 89 extends through a conveyor section 90 which forms part of the total conveyor section.
  • the conveyor route area 90 can also be formed by a route to be kept clear or an escape route.
  • the arrangement of the left and right door halves 88, 89 on the door sliding bearing 87 is such that both door halves 88, 89 can be closed by a door drive 91 in the presence of a switching pulse.
  • the closed positions of the door halves 88 and 89 are indicated by dash-dotted lines in FIGS. 2 and 6, while the open position of the door halves 88, 89 is shown with regular lines in FIG. 6.
  • the drive motor M is connected via a line 92 to a controller 93, which in turn is connected to a power line 95 via a line 94.
  • the controller 93 is provided, inter alia, with an emergency stop switching device, which is symbolically represented by an emergency stop button 96.
  • the controller 93 is also connected via a line 97 to a fire alarm signaling device 98 which has a fire alarm button 99 and an adjuster 100 for entering a waiting time.
  • the fire alarm signaling device 98 is connected to the door drive 91 via a line 101 and to the gear motor 68 via a line 102.
  • the power line 95 is connected via a line 103 to a control part 104, which is connected via a line 105 to an independent auxiliary power source (not shown).
  • a line 106 runs from the control part 104 and is likewise connected to the fire alarm signaling device 98 via a line 107.
  • the control part 104, the lines 105, 106 and 107 form an independent circuit 108, as is shown in broken lines in FIG. 6.
  • the operation of the overhead conveyor system 1 described above is as follows: An initial state is assumed in which the door halves 88, 89 separating the building spaces 82, 83 in their extended, that is, open positions, as shown by a solid line in Fig. 6. It is further assumed that the overhead conveyor system 1 is in operation, with the drive motor M being supplied with current from the mains line 95 via the lines 92, 94 and the control 93 connected therebetween. Accordingly, the conveyor chain 19 executes a movement in the transport direction T. As a result of the connection described above, the drivers 27, 33 including the ejector 30 are moved in the transport direction T, so that the trolleys 60, 61 running on the running rail 34 are taken along.
  • the trolley 60 is in contact with the pawl 44, ie the end 66 of the pawl 44 lies against the web 55 of the trolley 60 (FIG. 5).
  • the trolley 61 as well.
  • the pawl 43 When the overhead conveyor system 1 is in operation, the pawl 43 is always pivoted when the rail 38 passes onto the driver 27; 33 acts. This takes place in that the pin 48 of the pawl 43 engages with the rail 38 which is arranged in a fixed manner in the conveyor section area 90. As soon as an emergency occurs, the entire overhead conveyor system 1 can be stopped by actuating the emergency stop button 96, so that the power supply via the line 92 to the drive motor M is interrupted. Once the emergency situation has been resolved, you cannot shown switch the overhead conveyor 1 are put back into operation.
  • the fire alarm signaling device initiates 98 a power supply for the geared motor 68 via the line 102. Accordingly, the ring gear 71 is rotated clockwise, the pawls 79 provided with the roller chain 75 assume their hanging position and finally in the manner shown in FIG. 3 with the web 58 of a trolley engage and move it in the transport direction T. An unimpeded entrainment of one of the trolleys 60, 61 is possible because the stationary rail 38 has caused the pawl 43 to pivot into the position shown in broken lines in FIG.
  • the power supply to the geared motor 68 is interrupted, so that the pawl 79 fix the trolley 61 in the position shown in broken lines in FIG. 1 and thus prevent it from running back.
  • a trolley 61 located in the working area of the door halves 88, 89 thus became including the items of clothing 64 carried therefrom out of the conveyor section area 90, so that a Closing the door halves 88, 89 can be initiated via a corresponding signal.
  • auxiliary drive 109 consisting essentially of the roller chain 75 equipped with the pawls 79 and the gear motor 68 takes place regardless of whether one of the trolleys 60, 61 is in the working area of the door halves 88, 89 or not. Safe operation of the door halves 88, 89 is thus achieved without an additional monitoring device for the working area of the door halves 88, 89, whereby the building spaces 82, 83 are separated from one another in the event of a fire.
  • the power line 95 is in a de-energized state.
  • This state causes the control part 104 to supply the current coming from the auxiliary power source, for example an emergency power generator or a battery, via line 105 to line 106. From this line 106, the further distribution of the electrical energy takes place via line 107 to the fire alarm signaling device 98. If, in addition, ie in the event of a power failure, an alarm is signaled by actuation of the fire alarm button 99, then again is ignored whether or not one of the trolleys 60, 61 is in the working area of the door halves 88, 89 causes the above-described sequence of the auxiliary drive 109.
  • the auxiliary drive 109 ensures that a trolley located in the conveyor section 90 is moved out of the conveyor section 90.
  • the overhead conveyor system 1 must be brought back to an initial state after removal of all damage caused by the emergency, the trolleys 60, 61 with their roller bearings 53 leading in the transport direction again between the pawls 43, 44 and the left and right door half 88, 89 are again in the open positions ensuring the regular operation of conveyor system 1.
  • the auxiliary drive 109 is equipped with an energy storage drive 110 instead of the geared motor 68.
  • the drive 110 has a housing 111, in which a shaft 112 corresponding to the shaft 70 is rotatably mounted for receiving the ring gear 71.
  • the roller chain 75 is in turn received on this in the manner described above.
  • a wheel 113 is fixed on the shaft 112, which has sawtooth-shaped teeth 114 on its circumference. According to the shape of the tooth gaps formed by the teeth 114, an end 115 of a push rod 116 formed with a square cross section is shaped.
  • the push rod 116 is fixedly connected to a core 117 of an electromagnet 118 as a triggering device, the push rod 116 including the core 117 being slidably received in a housing 120 of the electromagnet 118 against the force of a spring 119.
  • the electromagnet 118 is formed with a wire winding 121, which tries to move the core 117 when current is applied.
  • a flattened area 122 is formed on the housing 111, to which the electromagnet 118 is fastened with its housing 120 in the usual way with screws (not shown).
  • the housing 111 corresponds to the geared motor 68 with the Screws 69 corresponding screws (not shown) attached to the support bar 67.
  • a drum 123 On the free end of the shaft 111, a drum 123 is fastened in a rotationally fixed manner and receives a quantity of coiled steel cable 126 with a diameter of, for example, three millimeters between two flanges 124, 125.
  • the steel cable 126 is fixedly connected at one end to the drum 123, while the free end 127 is fixedly connected to a weight piece 128.
  • the shaft 112 is formed with an internal thread (not shown) in which a screw 129 with a hexagon head is firmly received.
  • the operation of the overhead conveyor system 1, which is designed with the energy storage drive 109, corresponds essentially to the above-described embodiment.
  • the electromagnet 118 which releases the wheel 113, is actuated via the line 102, so that it begins to rotate in the clockwise direction (FIG. 7) due to the action of the weight piece 128 on the steel cable 126, and thus the auxiliary drive 109 starts over a certain time.
  • the initial state for the energy storage drive 110 is achieved in that the steel cable 126 is rewound on the drum 123 by rotating it with the aid of a suitable tool for the head of the screw 129 in the counterclockwise direction (FIG. 7) End 115 comes into positive engagement with the teeth 114 of the wheel 112 by the action of the spring 119 and prevents this from rotating in the clockwise direction (FIG. 7).
  • the running rail 34 is arranged with a gradient running in the transport direction T.
  • drivers 130 are connected here, which are each equipped with pawls 131, 132.
  • the pawl 131 is designed like the pawl 44 and accordingly has an end 133.
  • the pawl 132 is designed like the pawl 131 and is fixedly connected to a rotatably mounted shaft 134. At one end 135 of the shaft 134, a lever 136 is rotatably received.
  • the lever 136, the shaft 134 and the pawl 132 form a two-armed lever.
  • the lever 136 extends into the area of a rail 137.
  • the rail 137 is screwed to a shoulder 138 as a fastening point with a screw 139, the shoulder 138 being a fixed part of a carrier 140.
  • auxiliary drive 141 with pawls, of which only one pawl 142 is shown, is arranged on the carrier 140 in the manner described. With the exception of the pawls, the auxiliary drive 141 is constructed like the auxiliary drive 109, the pawls being arranged in the reverse position, as shown on the pawl 142. The auxiliary drive 141 can also be controlled according to the auxiliary drive 109 via the line 102.
  • the operation of the overhead conveyor system according to this embodiment 2 is as follows: During operation of the overhead conveyor system, the conveyor carriages 60, 61 are moved in the transport direction T, these being in each case in contact with the web 54 at the end 133 of the pawl 131 due to the sloping rail 34. As a result, the pawl 132 is in an unloaded state. As soon as the driver 130 reaches a conveyor section area to be kept free, the rail 137 causes the pawl 132 to pivot. This position is with dash-dotted lines in Figs. 9 and 10 can be seen. After an alarm has been triggered, the drive motor M is stopped again and then the auxiliary drive 141 is switched on, the associated motor 68 now being driven counterclockwise (FIG. 9).

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Chain Conveyers (AREA)
  • Control Of Conveyors (AREA)
EP93117223A 1993-02-13 1993-10-23 Dispositif pour laisser libre la piste du trajet de convoyage de l'installation d'un transporteur aérien en cas d'alarme Expired - Lifetime EP0611710B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4304369A DE4304369C1 (de) 1993-02-13 1993-02-13 Vorrichtung zum Freihalten eines Förderstreckenbereichs einer Hängeförderanlage bei Alarm
DE4304369 1993-02-13

Publications (3)

Publication Number Publication Date
EP0611710A2 true EP0611710A2 (fr) 1994-08-24
EP0611710A3 EP0611710A3 (fr) 1995-01-04
EP0611710B1 EP0611710B1 (fr) 1997-01-02

Family

ID=6480388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93117223A Expired - Lifetime EP0611710B1 (fr) 1993-02-13 1993-10-23 Dispositif pour laisser libre la piste du trajet de convoyage de l'installation d'un transporteur aérien en cas d'alarme

Country Status (5)

Country Link
US (1) US5485791A (fr)
EP (1) EP0611710B1 (fr)
JP (1) JPH06247286A (fr)
AT (1) ATE147051T1 (fr)
DE (2) DE4304369C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2868405A1 (fr) * 2004-04-05 2005-10-07 Ouest Convoyeur Et Automatisme Convoyeur a cable

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19541409A1 (de) * 1995-11-07 1997-05-15 Hestermann Gmbh & Co Beschicht Vorrichtung für die Oberflächenbehandlung, insbesondere Pulverbeschichtung, vonWerkstücken
EP2036599A1 (fr) * 2007-09-11 2009-03-18 Maurer Söhne GmbH & Co. KG Commerce de transport, système de sécurité, procédé de fonctionnement d'un commerce de transport et procédé de dégagement d'un véhicule dans un commerce de transport
KR101456211B1 (ko) * 2008-08-20 2014-11-03 엘지전자 주식회사 의류 처리 장치
SE539645C2 (en) * 2015-04-13 2017-10-24 Brunkeberg Systems Ab Lift and method for lifting facade elements, and associated locking member

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943580A (en) * 1956-07-16 1960-07-05 King Ltd Geo W Conveyor systems
DE1133313B (de) * 1957-03-18 1962-07-12 Donald Mayer King Kettenfoerderer einer Haengebahn mit Lastentraegern an Laufkatzen
US2987012A (en) * 1958-03-17 1961-06-06 King Donald Mayer Conveyor systems
US3541967A (en) * 1968-09-16 1970-11-24 Hewitt Robins Inc Automatic releasing drive carriage for power and free conveyor system
FR2085177B1 (fr) * 1969-12-30 1973-11-16 Jeumont Schneider
DE2554272C2 (de) * 1975-12-03 1978-02-02 Mannesmann AG, 4000 Düsseldorf Vorrichtung zum Freihalten einer Hängebahnstrecke bei Alarm
US4070972A (en) * 1976-08-03 1978-01-31 Jervis B. Webb Company Carrier propelling mechanism for power and free conveyors
JPS5524018Y2 (fr) * 1978-04-26 1980-06-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2868405A1 (fr) * 2004-04-05 2005-10-07 Ouest Convoyeur Et Automatisme Convoyeur a cable

Also Published As

Publication number Publication date
DE59304981D1 (de) 1997-02-13
JPH06247286A (ja) 1994-09-06
EP0611710B1 (fr) 1997-01-02
ATE147051T1 (de) 1997-01-15
DE4304369C1 (de) 1994-04-07
US5485791A (en) 1996-01-23
EP0611710A3 (fr) 1995-01-04

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