EP0270492A1 - Vorrichtung zur Halterung Absenkbarer Gegenstände - Google Patents

Vorrichtung zur Halterung Absenkbarer Gegenstände Download PDF

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Publication number
EP0270492A1
EP0270492A1 EP87810670A EP87810670A EP0270492A1 EP 0270492 A1 EP0270492 A1 EP 0270492A1 EP 87810670 A EP87810670 A EP 87810670A EP 87810670 A EP87810670 A EP 87810670A EP 0270492 A1 EP0270492 A1 EP 0270492A1
Authority
EP
European Patent Office
Prior art keywords
carriage
intended
elements
profile
head
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
EP87810670A
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English (en)
French (fr)
Other versions
EP0270492B1 (de
Inventor
Georges-André Leschot
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.)
LESCHOT GEORGES ANDRE
Leschot Georges-Andre
Orlandi Aldo
Original Assignee
LESCHOT GEORGES ANDRE
Leschot Georges-Andre
Orlandi Aldo
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 LESCHOT GEORGES ANDRE, Leschot Georges-Andre, Orlandi Aldo filed Critical LESCHOT GEORGES ANDRE
Publication of EP0270492A1 publication Critical patent/EP0270492A1/de
Application granted granted Critical
Publication of EP0270492B1 publication Critical patent/EP0270492B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/36—Hoisting or lowering devices, e.g. for maintenance
    • F21V21/38—Hoisting or lowering devices, e.g. for maintenance with a cable

Definitions

  • the present invention is in the field of systems which, in order to fulfill their function, include apparatus which must be placed at a certain height above the ground, more particularly on a mast comprising a device for supporting an apparatus which can be lowered to ground level.
  • These devices or materials capable of being adapted to the device for supporting a lowerable device can be for example: - ramps or light points, - antennas of all kinds, - surveillance devices (cameras, microphones, infrared camera for detecting fire sources, etc.), - meteorological measuring equipment, - environmental and pollution control devices (smoke, gas, etc.), - advertising material.
  • the description relates more particularly to a device for supporting lowerable light bars, but it goes without saying that the device can be applied to any other kind of apparatus.
  • French patent FR-A-2,400,479 describes a device for lifting a load along a rail vertical using a cable fixed to a carriage receiving the member to be lifted and comprising a braking device for braking and blocking the carriage on the rail in the event of cable breakage. It is characterized in that the carriage has guide rollers which are located in the T-shaped groove of the vertical rail, the axes of the rollers being perpendicular and the brake pads of the braking device being in the groove in the form of T of the rail.
  • the cable fixed to a brake lever of the braking device passes over idler rollers in the T-shaped groove of the rail.
  • Swiss patent CH-A-638,161 describes an assembly comprising a mast and a support mounted to slide along this mast, a winch placed at the base of the mast making it possible to move this support from the base of the mast to its top and vice versa, characterized in that the support comprises an automatic braking device cooperating with the mast, this braking device being sensitive to the relative speed between itself and the mast.
  • the present invention provides a device for supporting a lowerable device of the type described above, more particularly adapted to smaller dimensions: load of devices of approximately 150 kg, at a distance from the ground of the order of 15 to 20 m. It can for example be intended for the lighting of spaces such as football fields, tennis courts, roads, crossings, squares, stations, parking lots, etc.
  • the invention has the advantage that the maintenance cost of the equipment is minimal because it can be carried out on the ground by a single man and without using devices such as aerial work platforms or fire ladders and in addition independently of the weather conditions; moreover, because of its simplicity, maintenance can be regular, which contributes to maintaining the maximum efficiency of the equipment and to prolonging their service life, without waiting for a major breakdown to intervene.
  • the electrical connection is designed to use commercially available connectors. Consequently, it is possible to adapt it for any country, without special approval and without worrying about national standards since it suffices to choose connectors used in the country considered.
  • This device for supporting a lowerable device is characterized in that the carriage comprises male electrical connection elements and that the head comprises female electrical connection elements cooperating with said male elements, that the guide rail is connected to the head, and that the head comprises means for adjusting its position relative to the end portion of the guide rail as well as fixed elements arranged to cooperate with the means for hooking, stabilizing and detaching the carriage.
  • the profile is constituted by a cylindrical mast, but one could also consider fixing it along a wall or facade, without departing from the scope of the present invention.
  • the slide consists of a series of rails of different standard lengths and adapted to be plugged end to end, by means of pins for example, so as to obtain all the heights of masts desired with modular elements.
  • the attachment and stabilization means once the carriage in the high position, operate under the action of the earth's pulling force acting on a counterweight which can also serve as a positioning flag, making it possible to see from the ground, the hanging and stabilization phases as well as the stall. Incidentally, this flag is used to check the plug-in of the electrical connectors.
  • a parachute brake system intended to operate in the event of a break in the actuation cable.
  • This system includes a spring device intended to control the action of at least one brake shoe on the slide when the traction of the actuating cable is lacking (at break).
  • FIG. 1 In the general and somewhat schematic representation of Figure 1, there is shown a mast 10, along which is fixed a slide 20.
  • a mast head 30 is fixed, as will be seen later, at the top of the mast 10.
  • a part of the electrical connection elements 40 is also fixed to the head 30.
  • the slide 20 is arranged to allow the sliding of a carriage 50, provided with hooking means 60 to the fixed head 30 and a positioning indicator block 70 making it possible to ensure from the ground the phase of engagement of the mobile part with respect to the fixed part of the system.
  • the carriage 50 is integral also of the part of the support 80 of the apparatuses, constituted for example by a ramp of projectors not shown in the drawing and arranged regularly around the axis of the mast.
  • the mobile carriage 50 also drives part of the electrical connection elements 40 intended to cooperate with the fixed connection part of the mast head 30.
  • FIGS. 2 and 3 By taking a more detailed description of the main components of the device for supporting a lowerable device according to the invention, it can be seen in FIGS. 2 and 3 that in its upper part the mast 10 ends in a plate 11, for example welded, having a central opening 12 intended to allow the passage of an actuating cable 13 and of the electrical supply conductors 14.
  • the cable 13 is either fixed to the mast in its lower part (which constitutes additional security), or directly wound on the drum of an actuation winch of the assembly, not shown. In the first case, the operation is ensured by a removable winch designed to be hung in the various openings of the masts.
  • the suspension end 131 of the actuating cable 13 is connected to the sliding carriage 50. As can be seen in FIG. 8, it can be crimped into a threaded rod 132 and hold the assembly by means of nut and lock nut 133
  • the power supply conductors 14 allow the supply from the ground of the devices and incidentally the transport of information from these devices.
  • the slide 20 is, as already said, made up of rail elements 21 of different standard lengths intended to be placed end to end to cover the desired mast height.
  • the profile of the slide 20 is particularly visible in the section of FIG. 5. It may be noted that the face intended to be fixed against the mast has a curvature 22 forming on either side of the latter two contact edges 29 which make it possible to ensure the parallelism of the rail with the mast and on the other hand to adapt the latter to masts of different diameters or to the variable diameter of conical masts.
  • the rails 21 are fixed to the mast 10 by a series of central screws 23 and 24 distributed throughout each rail element.
  • the upper rail element mounted on the head 30 is fixed in corresponding threads by means of mechanical screws 23 to ensure precisely the fitting of the carriage in the mast head, and therefore the proper functioning of the attachment, stabilization and unhooking system.
  • the rail elements are fixed by sheet metal screws 24.
  • two cylindrical connecting grooves 25 are also provided 25 intended to receive at the end of each rail element two pins 26 for connecting and aligning the neighboring rail elements (see FIG. 8).
  • the slide 20 also has two lateral wings 27, with two bearing surfaces 271, for indirectly guiding the carriage 50.
  • the rail comprises another two grooves 28 for brake shoes having, in a preferred variant shown in the drawing, a section in the shape of a regular trapezoid. Provision may be made to have, on the lower rail element, two stops of the lowerable element and on the upper element two pins for eliminating the parachute brake effect not shown in the drawing.
  • each groove 28 has two slots 281 intended to receive a sliding steel strip which can be pushed from the ground towards the carriage at the head of the mast in order to hang and pull it, in the exceptional case where it would have been stuck in the high position or during the maneuver.
  • the guide rail described above can be made of extruded aluminum.
  • the electrical connection assembly 40 therefore comprises a fixed connector housing 41, arranged to be applied, by means of screws 413, to the upper part 34 of the head 30.
  • the fixed housing connectors ensures by its surfaces 411 and 412 the engagement, the longitudinal fine guide and the stabilization of the carriage (see fig. 3 and 11).
  • this casing comprises a chamber 42 intended to receive a female multipolar connector socket 43 of known type, as well as at least one fixing opening of at least one cable gland 44 intended to maintain and seal the end 141 of at least one electrical supply conductor 14.
  • the conductive strands 142 are completely protected in the casing 41 and their end is clamped in a known manner in the female contacts 431.
  • substantially the movable connector housing 45 comprising a chamber 46 intended to receive a male multipole connector socket 47 corresponding to the female multipole socket 43 as well as a cable gland 48 retaining the electrical supply conductors of the devices not shown in the drawing.
  • the movable connector casing 45 is provided with a seal 451, which comes to bear against a sealing face 414 of the fixed casing 41.
  • the fixed 41 and mobile 45 connector housings can be made of cast aluminum. At the lower part of the mobile connector housing 45, there is the device 49 for fixing the mobile connector 45 to the carriage 50.
  • This fixing device 49 consists of a bracket 491 fixed by means of screws 492 to the carriage 50 and the wings of which 493 and 494 have passages for a rod 495 slidably mounted and surrounded by a coil spring 496 integral on the one hand with the rod 495 in its upper part 497 and abutting on the other hand on the wing 493 of the stirrup 491.
  • the movable carriage 50 is arranged to slide along the guide slide 20. As can be seen in FIG. 5, its profile has a passage 51 for the actuation cable 13, one end of which 131 is fixed by any means known in the art. lower part of the carriage. This detail is important because it allows the cable to be changed without dismantling anything when the carriage is on its lower stops or blocked by the parachute brake.
  • the section of the carriage 50 highlights two grooves 52 for releasing the slide.
  • four cylindrical carriage guides 53 made of synthetic material, comprising a guide slot 531 intended for the passage of the wings 27 of the rail and a surface 533 coming to bear on the corresponding surface 271 of the slide. Guides 53 are placed at the top and bottom of the carriage.
  • the carriage guides 53 are placed in cylindrical bores 532 ( Figures 2 and 5).
  • the guides 53 can then undergo slight rotations, avoiding any jamming of their slot 531 on the wings 27 of the guide rail.
  • the carriage has a transverse bore 54, for the passage of a shaft of hooks, two abutment surfaces 55 and also includes threads 56 provided for fixing the supports 80 of the equipment.
  • the mast head has surfaces limiting a clearance in which the upper part of the carriage is fitted with adequate clearances. More particularly (see fig. 11) we have the following correspondences (the figure in parenthesis being the reference to the head and the fixed casing): - 571 (356) lateral guide surface, - 572 (411) longitudinal surface for fine guide and stabilization of the carriage, - 573 (357) rear longitudinal guide surface of the end of the carriage.
  • the elements attached to the carriage 50 of the system 60 for hooking and stabilizing as well as for detaching the carriage 50 are constituted by a shaft of hooks 61, pivoting in the bore 54 of the carriage and on which are fixed, on each side of the carriage, two suspension hooks 62 constituted by an eccentric having two flat guide surfaces 621 and a pivoting end 622, of rounded shape, of which the operation will be detailed later.
  • the hook shaft 61 extends on one of the sides of the carriage, to allow the fixing of the positioning indicator block 70 .
  • This block 70 comprises a counterweight 71 advantageously constituted by a rectangular plate, the lateral faces visible from the ground are coated with different colors to allow the user to check the position of the system.
  • the small face 72 is red while the large face 73 is black.
  • the counterweight 71 is fixed to the shaft 61 for example by means of a screw 711.
  • the equipment support material 80 is shown diagrammatically in the drawing by its left plate 81 and by its right plate 82, fixed by means of screws 84 in the threads 56 provided on each side of the carriage.
  • These plates 81 and 82 can either be integral with a rectilinear cross member, or with elements in a crown, depending on the type of apparatus to be fitted.
  • each brake shoe 94 is constituted by a body 941 made of aluminum, crossed by two pins 942 and 943 which are driven there.
  • the part of the shoe intended for braking has a trapezoidal section 946 (FIG. 6) intended to come into contact with the grooves 28 of the rail 20.
  • the shoe support connecting rods 95 are of two types: driving connecting rods 951 and connecting rods d 'drive and control 955.
  • Each connecting rod 951 or 955 has two cylindrical bores 952, 953; 956, 957.
  • the holes 952, 956 receive the shoe pins 942 and 943 while the holes 953, 957 are freely traversed by the pins 911, 912, integral with the brake frame 91.
  • the drive and control rods 955 further comprise a hole 958 intended to receive the brake control hook 97.
  • This brake hook 97 is constituted by a rod 971 having a curved end 972 intended to engage in the corresponding holes 958 formed in the control rod 955
  • Two coil springs 973 and 974 are arranged on the rod 971, between a stop 975 (a crimping for example) and a locking element 976 (a nut screwed onto the threaded lower end of the rod 971).
  • the movable stud 98 has a passage 981 for the threaded crimping rod 132 disposed at the end 131 of the actuating cable 13, a housing 982 for a spring 983 and a screw 984 for fixing to the frame 91, as well as two passages 985 for brake hooks 97, these passages constituting a shoulder 986 against which come abut the springs 973 and 974.
  • the cover 99 is intended to protect the various components of the parachute brake described.
  • the assembly operations of the device for supporting a lowerable device which is the subject of the invention are done with the mast lying on the ground.
  • the upper rail element 21 is screwed onto the mast head 30, using two centering screws 23.
  • the upper element 21 is temporarily fixed, using clamps or appropriate tools. which aligns automatically, thanks to its contact edges 29, taking care to be flush with the mast plate 11 with the mast head base 31.
  • the four head adjustment screws 312 are pressed against the mast plate 11.
  • the mast head 30 is securely fixed to the mast plate 11 by means of the four fixing screws 311.
  • the temporary holding elements (clamps for example) are removed and the upper rail element 21 is screwed against the mast using screws 24 for fixing to the mast.
  • the fixed connector housing 41 is temporarily mounted.
  • the assembly thus mounted and adjusted makes it possible to place the carriage 50 on the upper rail element 21 and to carry out tests of: - sliding of the carriage on the guide rail, - fine guide of the carriage in the mast head, - plugging in of electrical connections, - relative movement of the carriage relative to the head.
  • the fixed connector housing 41 is removed, the power supply conductors 141 and the actuation cable 13 are drawn up in the mast, by pulling on a cord previously inserted.
  • the electrical connections are made to the female multipole socket 43.
  • the cable is placed actuation 13 on the idler pulleys 32.
  • the idler pulleys are fixed on their respective shafts 322 and 326 using screws 328.
  • the plugs 324 and 327 are put in place.
  • the fixed connector housing 41 is screwed down, duly sealed.
  • the power supply conductors 141 are attached and hooked using the cords 341 and hooks 33.
  • the actuating cable 13 leaving the mast head 30 is left waiting on the ground, its other end being connected to an auxiliary winch drum.
  • the number of intermediate guide rail elements 21 required to obtain the desired guide length is then screwed along the mast, by placing two connection pins 26 between two adjacent elements.
  • the carriage 50 is placed on the rail. guide 20, possibly with its parachute brake.
  • the end of the actuating cable 13 is fixed in the carriage 50 using the fixing elements 133.
  • the mast is then straightened and sealed and the following operations can be carried out, which are carried out on the ground: - electrical connection in the mast barrel, - assembly of the support material 80 of the apparatuses, - mounting of electrical equipment and connections in the mobile connector housing 45, - possible adaptation of a winch, - lowering system test maneuvers.
  • the hooks 62 are located in a horizontal plane, as shown in FIG. 10 A.
  • the counterweight 71 is vertical, and from the ground we see its red face 72.
  • the rounded pivoting end 622 abuts the engagement angle 351, which topples over the hook 62 along the sliding plane 352 in a vertical position while the counterweight 71, integral with the same shaft 61 as the hooks 62, is found horizontally, having on the ground its black face 73 (FIG. 10B).
  • the counterweight 71 tends to rotate the shaft 61 clockwise.
  • the user using the winch, continues to involve an upward movement in the carriage until the rounded end 622 of the hook engages on the rounded surface 353 for supporting the hooks (FIG. 10C). In this position, the carriage is hooked.
  • the carriage undergoes, by the inclined position of the hooks, a forward force proportional to the total suspended mass.
  • the front longitudinal face of the carriage 572 is supported on the longitudinal face 411 of the fixed connector casing, which has the effect of perfectly stabilizing the lowerable devices, a particularly advantageous situation when these are directional antennas for example.
  • the user To unhook the carriage 50 from the mast head 30 (see FIG. 10D), the user involves the carriage, using the winch, an upward movement with a stroke of approximately 8 mm until the abutment faces of the carriage 55 bear against the faces 358 of the mast head. During this movement, the hooks 62, under the effect of the counterweight 71, leave their rounded support surface 353 and pivot in the clearance cells 354 to put themselves in a horizontal position. The counterweight 71 then shows its red face 72.
  • attachment and stabilization system as well as attachment used comprises only four particularly simple parts: the two hooks 62, the axis 61 and the counterweight 71.
  • the arrangement of these constituents makes it possible to achieve a particularly optimal mechanical resistance compared to their dimensions.
  • this system achieves several important objectives: - easy maintenance, because there are no moving parts at the top of the mast, - reliability resulting directly from simplicity (especially the absence of springs), - simplicity of the attachment and detachment maneuvers, which are carried out only by means of the winch and by monitoring the colors of the counterweight, witness to the different phases.
  • the sliding device for supporting the movable connector 45 by means of its spring 496 which is compressed in the final phase of mounting of the carriage 50, makes it possible on the one hand to obtain a sufficient force for engaging the male contacts in their female correspondents and on the other hand to ensure good support of the seal 451 on the face 414, and finally to perform the stall phase.
  • the male and female connectors used here are "AMPHENOL" sockets, but it is of course possible to vary the configuration of the casings 41 and 45 to use other types of sockets in the countries where it is envisaged to mount a device for support an apparatus according to the invention, which remains valid whatever the national standards.
  • the parachute brake system shown in Figures 6 to 9 it is installed to ensure that the sliding assembly will be blocked along the mast during the setting up or lowering operations, in case the cable comes to break.
  • the sliding mass (carriage + supports + apparatus) is suspended at the end of the cable 131 which, by means of the threaded crimping rod 132, the fixing elements 133 and the control pad 98, compresses the spring. 983.
  • the stud 98 passes from the pulling position shown in FIG. 8 to the position of FIG. 9, under the action of the spring 983 which relaxes between the housing 982 and the brake frame 91.
  • the clearances 944 and 945 milled in the shoe 94 allow it a maximum distance from the rail and allow the use of trees passing through 911 and 912 particularly well supported in the frame 91.
  • a brake shoe was mentioned and a control rod, but as seen in the drawing, the system can be double.
  • the system described for dimmable lighting can be used for any other type of apparatus, for example those listed in the introduction.
  • the device for supporting a lowerable device can also be applied to the facade rather than being constituted by an independent mast. It is of course that in this case, some components would undergo modifications without departing from the scope of the present invention, since the operating principle would be the same.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Earth Drilling (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Emergency Lowering Means (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP87810670A 1986-11-24 1987-11-16 Vorrichtung zur Halterung Absenkbarer Gegenstände Expired - Lifetime EP0270492B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4691/86 1986-11-24
CH4691/86A CH669249A5 (fr) 1986-11-24 1986-11-24 Support d'appareillages abaissable.

Publications (2)

Publication Number Publication Date
EP0270492A1 true EP0270492A1 (de) 1988-06-08
EP0270492B1 EP0270492B1 (de) 1991-06-12

Family

ID=4280827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810670A Expired - Lifetime EP0270492B1 (de) 1986-11-24 1987-11-16 Vorrichtung zur Halterung Absenkbarer Gegenstände

Country Status (5)

Country Link
US (1) US4850558A (de)
EP (1) EP0270492B1 (de)
CA (1) CA1297469C (de)
CH (1) CH669249A5 (de)
DE (1) DE3770779D1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695190A1 (fr) * 1992-09-02 1994-03-04 Eclairage Tech Dispositif adaptable sur un mât, notamment de type d'éclairage électrique et destiné, en particulier, à assurer le décrochage, la descente, la montée et l'accrochage d'un élément, tel qu'une couronne d'éclairage.
EP0757204A1 (de) * 1995-06-09 1997-02-05 Matsushita Electric Works, Ltd. Hebevorrichtung für einen Beleuchtungskörper
WO1997005670A1 (en) * 1995-07-31 1997-02-13 American High Mast Systems, Inc. System for raising and lowering communications equipment
FR2761394A1 (fr) * 1997-03-25 1998-10-02 Catherine Marie Euge Petitjean Systeme de verrouillage et de guidage d'un appareil mobile le long d'un mat
WO2007046121A1 (en) * 2005-10-17 2007-04-26 Mauro Innocente Support post for light units complete with system for assembly and

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE513500C2 (sv) * 1998-05-20 2000-09-25 Leif Svensson Anordning vid flaggstång
US6134422A (en) * 1998-06-30 2000-10-17 Lucent Technologies Inc. Adjustable height ground level serviceable cellsite
GB2341670A (en) * 1998-09-16 2000-03-22 Derek Dixon Street lighting column with rail and runner for lamp maintenance
US6175339B1 (en) 1999-11-23 2001-01-16 Winegard Company Retractable antenna clamp
CN105043568A (zh) * 2015-07-21 2015-11-11 国家电网公司 点动扣夹式温度探头安装装置

Citations (4)

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Publication number Priority date Publication date Assignee Title
AT313788B (de) * 1971-10-20 1974-03-11 Fromme Foerderanlagen Gmbh Vorrichtung an Paletten-Transportbahnen zur Horizontalführung
US4092707A (en) * 1976-11-08 1978-05-30 Millerbernd Paul A High level light supporting and light lowering means
FR2400479A1 (fr) * 1977-08-16 1979-03-16 Swisel Beleuchtungssysteme Ag Dispositif de levage de charge
CH638161A5 (en) * 1980-11-04 1983-09-15 Rubeli Jean Assembly comprising a pole and a support mounted so as to slide along this pole

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US400911A (en) * 1889-04-09 Telephone-support
US1371011A (en) * 1920-08-10 1921-03-08 Habby f
US1470698A (en) * 1922-04-24 1923-10-16 Harry W Nelson Therapeutic lamp
US2901202A (en) * 1954-12-03 1959-08-25 Picker X Ray Corp Waite Mfg Counter balance
US2841634A (en) * 1956-10-02 1958-07-01 Clarence L Kimball Sectional telescopic pole
US2967458A (en) * 1957-05-16 1961-01-10 Jr William Stone Instrument for use by a surgeon in viewing the field of operation under magnification
US4496057A (en) * 1982-07-26 1985-01-29 Fujitsu Limited Rack structure for mounting a communication apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT313788B (de) * 1971-10-20 1974-03-11 Fromme Foerderanlagen Gmbh Vorrichtung an Paletten-Transportbahnen zur Horizontalführung
US4092707A (en) * 1976-11-08 1978-05-30 Millerbernd Paul A High level light supporting and light lowering means
FR2400479A1 (fr) * 1977-08-16 1979-03-16 Swisel Beleuchtungssysteme Ag Dispositif de levage de charge
CH638161A5 (en) * 1980-11-04 1983-09-15 Rubeli Jean Assembly comprising a pole and a support mounted so as to slide along this pole

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695190A1 (fr) * 1992-09-02 1994-03-04 Eclairage Tech Dispositif adaptable sur un mât, notamment de type d'éclairage électrique et destiné, en particulier, à assurer le décrochage, la descente, la montée et l'accrochage d'un élément, tel qu'une couronne d'éclairage.
EP0757204A1 (de) * 1995-06-09 1997-02-05 Matsushita Electric Works, Ltd. Hebevorrichtung für einen Beleuchtungskörper
WO1997005670A1 (en) * 1995-07-31 1997-02-13 American High Mast Systems, Inc. System for raising and lowering communications equipment
FR2761394A1 (fr) * 1997-03-25 1998-10-02 Catherine Marie Euge Petitjean Systeme de verrouillage et de guidage d'un appareil mobile le long d'un mat
WO2007046121A1 (en) * 2005-10-17 2007-04-26 Mauro Innocente Support post for light units complete with system for assembly and

Also Published As

Publication number Publication date
EP0270492B1 (de) 1991-06-12
US4850558A (en) 1989-07-25
CH669249A5 (fr) 1989-02-28
CA1297469C (en) 1992-03-17
DE3770779D1 (de) 1991-07-18

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