Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/30—Installations of cables or lines on walls, floors or ceilings
  • H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B2/00—Friction-grip releasable fastenings
  • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
  • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
  • F16B2/065—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using screw-thread elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B37/00—Nuts or like thread-engaging members
  • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
  • F16B37/041—Releasable devices
  • F16B37/043—Releasable devices with snap action
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
  • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
  • F16L3/12—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
  • F16L3/13—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing and engaging it by snap action
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
  • F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
  • F16L3/221—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals having brackets connected together by means of a common support
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
  • F16B7/04—Clamping or clipping connections
  • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
  • F16B7/04—Clamping or clipping connections
  • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
  • F16B7/0446—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof
  • F16B7/0473—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof with hook-like parts gripping, e.g. by expanding, behind the flanges of a profile
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
  • F16B7/10—Telescoping systems
  • F16B7/105—Telescoping systems locking in discrete positions, e.g. in extreme extended position
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
  • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
  • F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
  • F16L3/105—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing one member carrying a substantially radial tightening element
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
  • F16L3/24—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with a special member for attachment to profiled girders
  • F16L3/243—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with a special member for attachment to profiled girders the special member being inserted in the profiled girder
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
  • H02G3/0456—Ladders or other supports

Definitions

• the present invention relates to a device for fixing cables, pipes and other elongated bodies in general.
• the field of the invention relates to devices used for fixing elongated bodies in general such as cables, pipes and the like on a support, for example pylons, used for supporting telecommunication antennas.
• the supporting device exert an effective supporting action on the cable, preventing it from sliding or moving from its seat by its own weight or the action of atmospheric agents.
• the blocking screw must be replaced with a longer one, on the remaining saddles stacked in the jumper.
• Undesired signals due to passive intermodulation are generated due to some form of mechanical non-linearity.
• One of the major causes is the inconsistency of the contacts between metal and metal in the areas affected by high current intensities such as those within the transmission lines or within radio frequency (RF) components. This may be due to the imperfect preparation of the RF terminations or from suboptimal assembly procedures, the loosening of screws or rivets inside the RF components, contaminated or oxidized surfaces of the connectors or RF connectors that are not sufficiently tightened.
• Passive intermodulation can therefore potentially significantly degrade the quality of the service of new networks, such as Lte (Long Term Evolution) and Hdspa+ (High Speed Downlink Packet Access), and it is of primary importance for telecommunication operators to reduce the negative effects of passive intermodulation in order to be able to install more advanced network infrastructures capable of supporting the conveyance of broadband data, without a significant increase in costs and without compromising the level of performance.
• Lte Long Term Evolution
• Hdspa+ High Speed Downlink Packet Access
• the metal material with which some components of the known cable clamps are made (adjustment and blocking screw, thrust plate and jumper) creates problems of passive intermodulation on the signal carried by the cable or cables.
• the objective of the present invention is to provide a fixing device for cables capable of guaranteeing the stable blocking of a variable number of saddles for fixing at least one cable and/or pipe or the like.
• a further objective of the present invention is to solve the problem of passive intermodulation.
• an objective of the present invention is to provide a U-shaped jumper which, housing one or more saddles for fixing cables, each composed of a pair of half-saddles, is always capable of guaranteeing a stable and centered clamping thrust of said half-saddles between each other.
• FIG. 1 illustrates a perspective view of a fixing device for cables according to the prior art
• FIG. 2 illustrates a perspective view of a fixing device for cables according to the present invention
• FIG. 3 is a perspective view of an element of the jumper according to the present invention.
• figure 4 is a sectional view of the element of figure 3;
• figure 5 is a sectional view of the element of figure 3 mounted on the two arms of the jumper;
• FIG. 6 illustrates a perspective view of a cable-clamping device according to the present invention, anchored to a support;
• FIG. 7 illustrates a front view of a cable-clamping device according to the present invention, anchored to a support;
• - figure 8 illustrates a perspective view of a cable-clamping device according to the present invention, anchored to a support
• - figure 9 illustrates a front view of a cable-clamping device according to the present invention, anchored to a support.
• the fixing device for cables, pipes and other elongated bodies 1' of the known art, illustrated in figure 1, comprises saddles 2 each composed of a pair of half-saddles 102a, 102b which form, when joined, the seats for supporting respective cables, not shown.
• this provides a U-shaped jumper 3', a thrust plate or platelet 4' and a blocking or fixing or adjustment screw 5'.
• the jumper 3' has a shaped end 6' that allows it to be hooked to a support, not shown.
• FIGS 2-5 illustrate the cable-clamping device 1 object of the present invention, and its components.
• the device object of the present invention comprises a U- shaped jumper 3, a thrust plate 4 with a blocking screw 5 and at least one saddle 2 for fixing at least one cable, said saddle being stacked on said jumper 3.
• Each saddle 2 is composed of two half-saddles, reciprocally coupled, for housing at least one cable.
• Said U-shaped jumper 3 comprises two arms in the form of blades 103, said two blades being connected to each other by means of a central body 303 slidingly snap-assembled along said blades 103, snap-engagement means being provided on said central body 303 which are engaged in corresponding seats, i.e. notches or recesses or pockets 403, positioned longitudinally along at least one of said blades 103.
• Said central body 3 comprises a threaded hole for receiving said screw 5 and two elongated pass-through openings 803 for the insertion of the blades 103.
• a U-shaped jumper 3 is thus formed, with a central body 303 snap-sliding longitudinally along said blades 103, which receives one or more saddles 2 for fixing cables, said saddles 2 being positioned between said thrust plate 4, and a relative blocking screw 5, and said two blade-like arms 103.
• the jumper 3 of the cable-clamping device 1 comprises two blade-like arms 103, each with a hook end 203 and a free end 203'.
• the hook end 203 allows attachment to a supporting element S, such as a pylon.
• a radial extension 503 is provided at least in correspondence with the hook extension 203, which follows the profile of said hook 203 and at least part of said blade 103, to form a reinforcement for the coupling with said supporting element S.
• said radial extension 503 creates a reinforcement in correspondence with the hook 203 of the jumper 3 in order to make hooking onto a pylon safer.
• the notches of one blade 103 are positioned symmetrically with respect to the notches of the other blade 103.
• Said notches 403 are positioned, on each blade 103, preferably equidistant from each other.
• Said two or more notches 403 are preferably positioned longitudinally along said blades 103 in correspondence with one of the two longitudinal edges of each blade 103.
• Said blades are preferably formed on a reinforcement band 603.
• Said band 603 in the embodiment illustrated, is positioned parallel to the longitudinal edges of the blade 103.
• the strip of notches 403, positioned adjacent to each other along the longitudinal axis L of the blade 103, i.e. various notches 403 positioned in sequence, at the same distance, one below the other, on the outer reinforcement band 603, is positioned adjacent to one of the longitudinal edges of the blade and ends near the radial reinforcement element 503 of the hook 203.
• the notches or pockets or recesses 403 preferably have a square or rectangular section.
• said two blades 103 are connected to each other by means of a central body 303 slidingly snapped onto said blades 103.
• Said central body 303 comprises a central threaded hole 703 for screwing/unscrewing the blocking screw 5, and two elongated pass-through openings 803, positioned parallel to each other on the sides of said hole 703, for the insertion of the blades 103 of the jumper 3.
• Said central body 303 is preferably in the form of a parallelepiped .
• the central body 303 in the form of a parallelepiped has a thickness which is such as to allow the blades 103 that form the arms of the jumper 3, to be kept parallel to each other and also allows there to be a central threaded hole 703 with various turns to ensure greater support for the screw 5 during screwing and unscrewing, said greater support helping to keep the screw parallel to the arms of the jumper 3 and therefore centered (not tilted) on the thrust plate 4.
• the central body 303 is inserted on the blades at their free end 203'.
• the central body 303 is provided with said snap-engagement means with the notches or pockets or recesses 403 provided on the blades 103 of the jumper 3.
• snap-engagement means are provided, in correspondence with the openings 803, with the notches 403 provided on the blades 103 of the jumper 3.
• the coupling between the central body 303 and the two blades 103 is in fact effected by means of at least one tilted tooth 903 which protrudes from one or both side walls of said central body 303 inside one or both elongated pass-through openings 803, provided on said central body 303, to be engaged in at least one corresponding notch 403 formed longitudinally on said blades 103, when said blades 103 are each inserted into the corresponding longitudinal pass-through opening 803 to form the U-shaped jumper 3.
• said at least one tilted tooth 903, protruding in each of the pass-through openings 803 for inserting the blades 103, starting from the outer side wall of the central body 303, is snap-inserted, having a tilted invitation surface 913, into at least one corresponding notch 403 present on the outer side wall 103' of each blade 103.
• Said at least one tilted tooth 903 folds over itself and extends radially towards the outside of said central body 303 to form a radial extension 923 in the form of an appendage or flap, protruding from the central body 303, for the disengagement of said tooth from the corresponding notch 403.
• the vertex or connection area between said tilted tooth 903 and said radial release appendage 923 forms, as shown in figure 5, an abutment edge against a portion of the notch 403 and prevents the sliding of the central body 303 towards the free end 203' of the blades 103 opposite the hook end 203.
• the edge advantageously has a flat surface 923' which, in the blocked condition of the central body 303 on the blades 103, is partially abutted against at least part of the internal surface or internal wall of the notch 403.
• the flat surface 923' of said tilted tooth 903 folded to form said appendage or disengagement flap (923), is partially abutted against an outer edge 403' of the notch 403 whereas the tilted surface 913 is positioned in correspondence with the opposite outer edge of said notch 403".
• At least one of the two side walls of the central body 303 has a pocket 933 externally, in communication with said pass-through opening 803 for inserting the blades 103 which forms a seat for the tilted tooth 903 and/or the disengagement flap or appendage 923.
• the central connection body 303 is therefore adjustable in height on the U-shaped jumper 3, i.e. it can be moved along the arms 103.
• Figures 6 to 9 illustrate the cable-clamping device 1 object of the present invention hooked to a support S, such as a section bar.
• the blades 103 and the central connecting body 303 with the snap-engagement means 903,923 are made of plastic.
• Figure 6 and figure 7 show the central body 303 in an intermediate position along the longitudinal extension L of the blades 103 of the jumper mounted on the support S, so that the combination of the blocking/adjustment screw 5 and the thrust plate 4 can firmly block the half-saddles 102a, 102b to house cables C having a reduced diameter (e.g. 12 mm cables).
• a reduced diameter e.g. 12 mm cables
• Figures 8 and 9 show the jumper 3 in a configuration with a maximum length, i.e. with the central body 303 positioned near the end 203' of the blades 103 opposite the hook end 203 so as to be able to stably house, thanks to the screw 5 and thrust plate 4, more saddles 2 and/or saddles for cables C with a larger diameter (for example cables with a diameter of 22 mm), with respect to the configuration shown in figures 6 and 7, without having to modify the length of the screw 5.
• a maximum length i.e. with the central body 303 positioned near the end 203' of the blades 103 opposite the hook end 203 so as to be able to stably house, thanks to the screw 5 and thrust plate 4, more saddles 2 and/or saddles for cables C with a larger diameter (for example cables with a diameter of 22 mm), with respect to the configuration shown in figures 6 and 7, without having to modify the length of the screw 5.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Laying Of Electric Cables Or Lines Outside (AREA)
• Supports For Pipes And Cables (AREA)
• Clamps And Clips (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=79018317

Family Applications (1)

Country Status (2)

Citations (2)

• 2021
  • 2021-09-30 IT IT102021000025088A patent/IT202100025088A1/it unknown
• 2022
  • 2022-09-28 WO PCT/IB2022/059219 patent/WO2023053019A1/en unknown

Patent Citations (2)

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