NO347722B1 - E-sea-clamp for securing nets in aquaculture production unit - Google Patents

E-sea-clamp for securing nets in aquaculture production unit Download PDF

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Publication number
NO347722B1
NO347722B1 NO20211354A NO20211354A NO347722B1 NO 347722 B1 NO347722 B1 NO 347722B1 NO 20211354 A NO20211354 A NO 20211354A NO 20211354 A NO20211354 A NO 20211354A NO 347722 B1 NO347722 B1 NO 347722B1
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NO
Norway
Prior art keywords
clamp
sea
main body
net
railing
Prior art date
Application number
NO20211354A
Other languages
Norwegian (no)
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NO20211354A1 (en
Inventor
Martin Opøien
Original Assignee
Opoeien Martin
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 Opoeien Martin filed Critical Opoeien Martin
Priority to NO20211354A priority Critical patent/NO347722B1/en
Publication of NO20211354A1 publication Critical patent/NO20211354A1/en
Publication of NO347722B1 publication Critical patent/NO347722B1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
    • 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
    • F16B2/08—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 bands
    • 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
    • F16L3/245—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 embracing the entire profiled girder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Catching Or Destruction (AREA)

Description

E-SEA-CLAMP FOR SECURING NETS IN AQUACULTURE PRODUCTION UNIT
TECHNICAL FIELD OF THE INVENTION
The invention disclosed herein generally relates to a fastening device. More particularly, the present invention relates to a clamping device designed for use on an aquaculture installation for securing nets and cables to a railing system, thereby avoiding any gap between the railing and a roof-net of the aquaculture production unit for preventing entry of the birds or nestlings.
BACKGROUND
Aquaculture is the controlled farming or cultivation of aquatic organisms such as fish, algae, and other organisms such as aquatic plants. This involves cultivating aquatic organisms conducted completely in artificial facilities built on the land or offshore floating constructions, for example, a cage to produce fish in an offshore floating constructions. The cultivation of species may differ. Few methods are used to restore habitat, replenish wild stocks, and rebuild populations of threatened and endangered species. Some methods are used in salmon farming produced for human consumption. With the help of aquaculture techniques and technologies, various types of freshwater and marine species are cultivated.
Many equipment and devices are developed for supporting aquaculture cultivation. Among them, it is necessary for an arrangement for cables and nets utilized in the cultivation to restrain them quickly and securely. One such development is a clamping device used for securing hanging nets and power cables used in farming operations. The clamping device is used to prevent the hanging of cables and nets all around by fastening and securing the cables and nets across a load.
In a conventional method, ropes are used for securing roof-net/birds-net by taping them to the handrail and tapes are used for securing cables. The roof-net is secured to the handrail using a rope. This method is inefficient and time-consuming as the net needs to be opened regularly for different operations. This method may also leave a gap between the net and railing, which allows some birds to enter if it’s not done properly. Moreover, the currently available cable and net management are cost-inefficient, and also make a lot of unnecessary plastic wastes.
A prior art, WO2016005956 of Copper technologies, discloses a pipe restraint device. The restraint device comprises a body with sloped surfaces configured to mount to a pipe. A strap warps around parts of the pipe exterior, and a support member passes through an opening in the body. Another prior art, FR2893228 of Callewaert, discloses a suspension coupling for suspending a shellfish rearing cage to a supporting tube. Yet, another prior art, EP2333201 of Laffay, discloses a fastening device for temporarily fixing a safety net to the posts of a handrail. However, the above-mentioned prior arts fail to disclose an efficient clamp arrangement to secure cables and nets quickly and securely.
In light of the above-mentioned problems, there is a need for a clamping device configured to secure cables and nets quickly and securely. Moreover, there is a need for a clamping device that is easy to use and is suitable for daily inspection, which gives a quicker overlook. Also, there is a need for a clamping device for sealing the gap between the railing and the roof-net, thereby preventing entry of the birds or nestlings.
SUMMARY OF THE INVENTION
The present invention discloses a clamping device or E-sea-clamp (hereinafter referred as sea-clamp) for securing cables and ropes mounted to the underside of a railing system. The sea clamp is designed for use on an aquaculture installation for securing nets and cables securely. In one embodiment, the sea clamp supports easy cable management and reduces the use of rope and tapes. In one embodiment, the sea clamp is used as a sealing or gap fastening device between the railing and the roof-net configured to seal the gap/space between the railing and the roof-net, thereby preventing entry of birds or nestling.
In one embodiment, the sea-clamp comprises a main body and a rubber rope or flexible rope for locking with the main body of the sea-clamp. In one embodiment, the main body is a single solid structure. In one embodiment, the main body comprises a slope at its upper surface for mounting on an underside of the railing. In one embodiment, the main body further comprises a cable slot for supporting a plurality of cables. In one embodiment, the main body further comprises a gap at the deep point of the slope for allowing the sea-clamp to mount with the existing cables.
In one embodiment, the main body further comprises at least two upper latch projections including a first upper latch projection and a second upper latch projection. The first latch projection is attached at one upper end of the main body. In one embodiment, the first latch projection is configured to engage or lock the rubber rope around a railing system or railing in an aquaculture production unit. In one embodiment, the rubber rope is pulled over the railing from the top section of the main body and is released or locked into the first latch projection. The second upper latch projection is attached to the backside of the upper end of the main body. In one embodiment, the second upper latch projection is configured to secure a birds-net/roof net to the railing. In one embodiment, the birds-net is snapped in and out from the second upper latch projection for easy operation. Further, the bird-net secured to the second latch projection prohibits bird’s entry.
In one embodiment, the main body further comprises at least two lower latch projections or extra-net holders including a first lower latch projection and a second lower latch projection. The two lower latch projections are attached at both sides of the lower end of the main body. In on embodiment, the lower latch projections are configured to hold extra-nets to seal the gap between the underside of the railing and a fish-net/fish carrying net/cage-net. In one embodiment, the extra net prevents entry of birds underside of the railing and serve as an extra protection for fish escaping/jumping out from the fishing-cage.
In one embodiment, the main body further comprises a pair of through-holes or passage having a pair of entering holes and a pair of exiting holes at the bottom section and the top section of the main body, respectively. In one embodiment, the entering and exiting holes are configured to receive rubber rope through the passage. In one embodiment, the rubber ropes are passed from one passage to the other passage via the entering and exiting holes. In one embodiment, the rubber ropes received at the entering holes in the bottom section of the main body are tied or knotted to secure them in place. In one embodiment, the main body further comprises a pocket/space at the bottom section of the main body configured to hide the knots of the rubber rope.
In one embodiment, the sea-clamp is made of plastic or other suitable materials. In one embodiment, the sea-clamp is made by injection molding or 3D print with polyurethane (PUR) material, mixed with approximately 5% carbon to give it the right flexibility. Moreover, this gives the sea-clamp the hardness of about 65 shores D. In one embodiment, the sea-clamp could be of any size, according to the diameter of the railing. In one embodiment, the sea clamp has a dimension of about 110mm height, 215mm width, and 30 mm diameter or depth to fit with the railing having the size of about 140mm. In one embodiment, the rubber rope has a dimension of about 8mm in diameter. The rubber rope is similar to the straps used for securing the luggage on bicycles having a diameter of 8mm.
Other objects, features and advantages of the present invention will become apparent from the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 exemplarily illustrates a front view of a sea-clamp or clamping device, according to an exemplary embodiment of the present invention.
FIG. 2 exemplarily illustrates a perspective view of the sea-clamp, according to one embodiment of the present invention.
FIG. 3 exemplarily illustrates a side perspective view of the sea-clamp, according to one embodiment of the present invention.
FIG. 4 exemplarily illustrates a top view of the sea-clamp, according to one embodiment of the present invention.
FIG. 5 exemplarily illustrates a bottom view of the sea-clamp, according to one embodiment of the present invention.
FIG. 6 exemplarily illustrates the installation of a rubber rope with the sea-clamp, according to one embodiment of the present invention.
FIG. 7 exemplarily illustrates the sea-clamp mounted on an underside of a railing in a typical use case, according to one embodiment of the present invention.
FIG. 8 exemplarily illustrates the sea-clamp to secure one or more cables and roof-net, according to one embodiment of the present invention.
FIG. 9 exemplarily illustrates the sea-clamp to secure extra-nets, according to one embodiment of the present invention.
FIG. 10 exemplarily illustrates the extra-net, according to one embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIG. 1, a front view of an E-sea-clamp or clamping device 100 (hereinafter referred as sea-clamp) for securing cables and nets in one embodiment is disclosed. In one embodiment, the sea-clamp 100 is designed for use on an aquaculture installation for securing nets and cables quickly and securely to a railing system or railing (128) (as shown in FIG. 7). In one embodiment, the sea-clamp 100 supports easy cable management. In one embodiment the sea-clamp 100 is used as a sealing or gap fastening device configured to seal the gap/space between a railing system 128 (as shown in FIG.
6) and a roof-net or birds-net 130 (as shown in FIG. 6), thereby preventing the entry of the birds or nestlings. In one embodiment, the sea-clamp 100 comprises a main body 102 and a rubber rope or flexible rope 104 for locking with the main body 102 of the seaclamp 100.
Referring to FIG. 2, a perspective view of the sea-clamp 100 in one embodiment is disclosed. In one embodiment, the sea-clamp 100 comprises a main body 102. In one embodiment, the main body 102 is a single solid structure. In one embodiment, the main body 102 comprises a slope 105 at its upper surface for mounting on an underside of the railing 128. In one embodiment, the main body 102 further comprises a cable slot 106 for supporting a plurality of cables 126. In one embodiment, the main body 102 further comprises a gap 107 at the deep point of the slope 105 for allowing the sea-clamp 100 to mount with the existing cables. In one embodiment, the gap 107 further allows for easy installation of one or more new cables as well as dismounting of one or more cables from the cable slot 106.
In one embodiment, the main body 102 further comprises at least two upper latch projections including a first upper latch projection 108 and a second upper latch projection 110. The first upper latch projection 108 is attached at one upper end of the main body 102. In one embodiment, the first upper latch projection 108 is configured to engage or lock the rubber rope 104. The second upper latch projection 110 is attached at another upper end of the main body 102. In one embodiment, the second upper latch projection 110 is configured to secure a birds-net or roof-net 130 on the aquaculture production unit. In one embodiment, the roof-net 130 is snapped in and out from the second upper latch projection 110 for easy operation. Further, the roof-net 130 secured to the second latch projection 110 prohibits the entry of birds.
In one embodiment, the main body 102 further comprises at least two lower latch projections or extra-net holders, which include a first lower latch projection 112 and a second lower latch projection 114. The first lower latch projection 112 is attached at one lower end of the main body 102. The second lower latch projection 114 is attached at another lower end of the main body 102. In one embodiment, the lower latch projections (112 and 114) are configured to hold one or more extra-nets (134) (as shown in FIG.9) to seal a gap/space (136) (as shown in FIG. 9) between the underside of the railing 128 and and a fish carrying net/fish-net/cage-net (hereinafter referred as cage-net) 132. In one embodiment, the extra-net is a small piece of net built parallel to the roof-net 130. In one embodiment, the main body 102 further comprises one or more mounting holes (116 and 118) for extra or unspecified equipment. In one embodiment, the main body 102 further includes a pocket/space 120 at the bottom section of the main body 102 to hide the knots at the ends of the rubber rope 104.
Referring to FIGs. 3-5, different views of the main body of the sea-clamp 100, according to one embodiment of the present invention. In one embodiment, the main body 102 comprises at least two upper latch projections (108 and 110) attached at its upper end and at least two lower latch projections (112 and 114) attached at its lower end. In one embodiment, the main body 102 further comprises a pair of through-holes or passage having a pair of entering holes 122 at a bottom section of the main body 102 near the backside and a pair of exiting holes 124 at a top section of the main body 102. In one embodiment, the entering holes 122 are configured to allow the rubber rope 104 to enter into any one of the passages. In one embodiment, the exiting holes 124 are configured to receive the rubber rope 104 from the respective passage and pass the same thereon through the other passage. In one embodiment, the main body 102 further includes a pocket/space 120 at the bottom section of the main body 102 next to the entering holes 122 configured to hide the knots of the rubber rope. In one embodiment, the pocket 120 is around 2cm deep to hide the knots at the ends on the rubber rope 104.
Referring to FIG. 6, insertion of the rubber rope 104 in the main body 102 in one embodiment is disclosed. In one embodiment, one end of the rubber rope 104 is passed into any one of a passage via any one of an entering hole 122 at the bottom section of the main body 102, whereas the other end of the rubber rope 104 is tied to secure the rubber rope 104 in place. In one embodiment, the rubber rope 104 passed through the one of the entering holes 122 is received at the top section of the main body 102 via any one of the respective exit holes 124. In one embodiment, the exit holes 124 are designed parallel to the entering holes 122 to create a passage. In one embodiment, the rubber rope 104 received through one passage is passed through the other passage via another exit hole 124 and received at another entering hole 122. In one embodiment, the rubber rope 104 at the top section is pulled and locked with the first upper latch projection 108. In one embodiment, the tied rubber rope 104 present at the entering holes 122 are hidden within the pocket 120 provided at the bottom section of the main body 102.
Referring to FIGs. 7-8, the sea-clamp 100 mounted on the underside of the railing system or railing 128 and locked around it using the rubber rope 104 configured to secure the cable 126 and roof-net 130 to the railing 128 in a typical use case, according to one embodiment of the present invention. In one embodiment, the sea clamp 100 is mounted at the underside of the railing 128. In one embodiment, the cable slot 106 of the seaclamp 100 secures one or more existing cables 126. In one embodiment, the cable slot 106 is a room for mounting multiple cables at a time. In one embodiment, the sea-clamp 100 is mounted underside the railing 128 by pulling the rubber rope 104 around the railing 128. The rubber rope 104 is pulled around the railing 128 and locked into the first upper latch projection 108. In one embodiment, the rubber rope 104 is secured to the railing 128 by the rubber rope’s tension.
In one embodiment, the sea-clamp 100 is further mounted with the birds net or roof-net 130 secured at the second upper latch projection 110, thereby preventing the entry of any birds. In one embodiment, the lower latch projections (112 and 114) are configured to hold the extra-nets 134 to seal the gap 136 between the railing 128 and a cage-net 132, thereby preventing the entry of birds and jump out of fishes from the aquaculture production unit. In one embodiment, the roof-net 130 is easily snapped in and out for various operations. Optionally, the at least two lower latch projections or extra-net holders (112 and 114) are used to secure one or more extra-nets 134 to create a gap-free fishing net. In one embodiment, the extra-net holders (112 and 114) are used for sealing the gap between the railing 128 and the cage-net 132 on the underside of the railing 128, thereby preventing entry of the birds or jumping of fish out from the aquaculture production unit.
In one embodiment, the sea-clamp 100 is made of plastic or other suitable materials. In one embodiment, the sea-clamp 100 is made by injection molding or 3D print with polyurethane (PUR) material, mixed with approximately 5% carbon to give it the right flexibility. Moreover, this gives the sea-clamp 100 the hardness of about 65 shores D. In one embodiment, the sea-clamp 100 could be of any size, according to the diameter of the railing 128. In one embodiment, the sea clamp 100 has a dimension of about 110mm height, 215mm width, and 30 mm diameter or depth to fit with the railing 128 having the size of about 140mm. In one embodiment, the rubber rope 104 has a dimension of about 8mm in diameter. The rubber rope 104 is similar to the straps used for securing the luggage on bicycles having a diameter of 8mm.
Referring to FIG. 9, the sea-clamp mounted on the underside of the railing 128 configured to secure one or more extra-nets 134, according to one embodiment of the present invention. The extra net 134 is a small piece of net as shown in FIG. 10. In one embodiment, the extra-net 134 has a dimension of about 50 cm in height. In one embodiment, the extra net 134 is positioned parallel to the roof-net 130, to seal the gap between the railing 128 and the cage-net 132. It is light weight and hangs freely from the railing 128. In one embodiment, the extra-nets 134 are secured into the lower latch projections (112 and 114), thereby preventing entry of any birds or nestlings and jumping out of fishes via a gap/space 136 between the cage-net 132 and the railing 128.
Advantageously, the e-sea-clamp 100 of the present invention secures cables and nets quickly and securely. Also, the sea clamp 100 provides a better sealing making it a rope-free no gap fastening of the roof net 130 with the sea-clamp 100. Further, the seaclamp 100 is easy to use and is suitable for daily inspection. The sea-clamp 100 provides a quicker opening and closing of nets along with neater and tidier cages. Further, the seaclamp 100 of the present invention reduces the use of rope and tape and supports easy cable management avoiding cables lying around. Moreover, the sea-clamp 100 floats and is reusable.

Claims (10)

1. A sea-clamp (100) for securing one or more cables and nets, comprising:
a main body (102) having a slope (105) at its top surface configured to mount on an underside of a railing (128) and a cable slot (106) configured to receive and support a plurality of cables (126); wherein the main body (102) includes,
at least two upper latch projections including a first upper latch projection (108) at one upper end of the main body (102) configured to engage a rubber rope or locking rope (104) and a second upper latch projection (110) at another upper end of the main body (102) configured to secure a birds-net or roof-net (130) in an aquaculture production unit;
a pair of through-holes or passage having a pair of entering holes (122) at a bottom section of the main body (102) configured to allow the rubber rope (104) to enter into any one of the entering holes (122) and a pair of exiting holes (124) at a top section of the main body (102) configured to receive the rubber rope (104) and passing the rubber rope (104) thereon through another exiting hole (124) and received at another entering hole (122),
wherein the ends of the rubber rope (104) are tied or knotted at the bottom section for securing within the main body (102)
wherein the rubber rope (104) is pulled over the railing (128) and is released or locked into the first latch projection (108) for safely securing the railing (128) in place.
2. The sea-clamp (100) of claim 1, further comprises at least two lower latch projections including a first lower latch projection (112) and a second lower latch projection (114) on both sides of a lower end of the main body (102).
3. The sea-clamp (100) of claim 2, wherein the lower latch projections (112 and 114) are configured to hold one or more extra-nets (134) to seal a gap/space (136) between the railing (128) and a fish carrying net/fish-net/cage-net (132).
4. The sea-clamp (100) of claim 2, wherein the extra-nets (134) are snapped in and out from the lower latch projections (112 and 114) for easy operation.
5. The sea-clamp (100) of claim 1, wherein the roof-net (130) is snapped in and out from the second upper latch projection (110) for easy operation.
6. The sea-clamp (100) of claim 1, further comprises a gap (107) configured to mount the sea-clamp (100) with the existing cables.
7. The sea-clamp (100) of claim 1, seals a gap/space between the railing (128) and the roof-net (130) to prevent the entry of the birds or nestlings.
8. The sea-clamp (100) of claim 1, wherein the main body (102) further includes a pocket/space (120) at the bottom section of the main body (102) proximal to the entering holes (122) configured to hide the knots at the ends of the rubber rope (104).
9. The sea-clamp (100) of claim 1, wherein the main body (102) further comprises one or more mounting holes (116 and 118) for unspecified equipment.
10. The sea-clamp (100) of claim 1, is made of plastic or other suitable materials.
NO20211354A 2021-11-09 2021-11-09 E-sea-clamp for securing nets in aquaculture production unit NO347722B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20211354A NO347722B1 (en) 2021-11-09 2021-11-09 E-sea-clamp for securing nets in aquaculture production unit

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Application Number Priority Date Filing Date Title
NO20211354A NO347722B1 (en) 2021-11-09 2021-11-09 E-sea-clamp for securing nets in aquaculture production unit

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NO20211354A1 NO20211354A1 (en) 2023-05-10
NO347722B1 true NO347722B1 (en) 2024-03-11

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2893228A1 (en) * 2005-11-14 2007-05-18 Yad Sas Soc Par Actions Simpli Suspension coupling for shellfish rearing cage includes hook and handle for rapid connection/disconnection between cage holder and supporting tube
EP2333201A1 (en) * 2009-12-07 2011-06-15 Dani Alu Device for provisional attachment of a safety net on a guardrail upright
WO2016005956A1 (en) * 2014-07-11 2016-01-14 Cooper Technologies Company Pipe restraint

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2893228A1 (en) * 2005-11-14 2007-05-18 Yad Sas Soc Par Actions Simpli Suspension coupling for shellfish rearing cage includes hook and handle for rapid connection/disconnection between cage holder and supporting tube
EP2333201A1 (en) * 2009-12-07 2011-06-15 Dani Alu Device for provisional attachment of a safety net on a guardrail upright
WO2016005956A1 (en) * 2014-07-11 2016-01-14 Cooper Technologies Company Pipe restraint

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