EP3789312A1 - Aufprallschutz und verfahren zur herstellung - Google Patents

Aufprallschutz und verfahren zur herstellung Download PDF

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Publication number
EP3789312A1
EP3789312A1 EP19195398.3A EP19195398A EP3789312A1 EP 3789312 A1 EP3789312 A1 EP 3789312A1 EP 19195398 A EP19195398 A EP 19195398A EP 3789312 A1 EP3789312 A1 EP 3789312A1
Authority
EP
European Patent Office
Prior art keywords
sheet
impact protector
plate
stressfree
around
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.)
Withdrawn
Application number
EP19195398.3A
Other languages
English (en)
French (fr)
Inventor
Luc Noel
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.)
Brady Corp Ltd
Original Assignee
Brady Corp Ltd
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 Brady Corp Ltd filed Critical Brady Corp Ltd
Priority to EP19195398.3A priority Critical patent/EP3789312A1/de
Publication of EP3789312A1 publication Critical patent/EP3789312A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings

Definitions

  • the present invention is related to the field of the safety of people, for example staff and visitors, in particular in building sites and in industrial plants, and has as its general objective to provide efficient protection against impact injuries (for example from pillars, columns, posts, frames, edges, corners and the likes).
  • the present invention aims more specifically for providing an impact protector device which is able to provide fast and straightforward 360° protection, is easy to put in place and to remove, without need of any integrated or separate fixing means and, whose implementation and use do not lead to any damage or modification to the item, structure or part it is attached to or removed from.
  • One known basic solution consists in wrapping sheet of elastic or dampening material around the item or part which has to be covered and to attach it with adhesive tape. This solution is time consuming, generates waste and is of inconsistent quality.
  • Another known solution consists in using specifically shaped foam parts, adapted to the item or part to be covered, and fixing them by gluing. This solution requires a large variety of different shapes and is likely to damage at least the surface of the item or part when removed.
  • Tubular sleeves made by extruding foam and intended to be mounted (after having been cut open longitudinally) around ducts for heat insulation purposes are also known in the art. But they are only adapted for a small range of diameters and lose their capacity of abutting closure after having been put on and taken off several times. Moreover, they fit properly only once, often need extra straps or tape in order to achieve good fitting, are easily destroyed, have a poor grey appearance and provide generally at the most only one surrounding layer of foam with poor shock absorbing properties.
  • the main aim of the present invention is to propose a new solution allowing to overcome the drawbacks of the state of the art solutions in the field of protection against impact injuries and showing the beneficial aspects exposed before.
  • the invention proposes an impact protector designed to form a shock or impact absorbing shell around an item, an object or a part in order to prevent in particular injuries to people contacting said item, object or part, said protector consisting of a rectangular or square shaped plate or sheet of foam material, said impact protector being characterized in that said plate or sheet has shape memory properties which makes it wrap or coil itself elastically and automatically into a cylindrical sleeve body around a winding axis in its rest or stressfree state.
  • the invention concerns an impact protector designed to form a shock or impact absorbing shell 1 around an item, an object or a part 2 in order to prevent in particular injuries to people contacting said item, object or part, said protector consisting of a rectangular or square shaped plate or sheet 3 of foam material, which is intended to be wrapped around the article to be shielded or encapsulated.
  • said plate or sheet 3 has shape memory properties which makes it wrap or coil itself elastically and automatically into a cylindrical sleeve body 1' around a winding axis WA in its rest or stressfree state (i.e. under normal ambient conditions, and when it is not exposed to any constraint or load and not interacting with any physical body).
  • the invention provides a self-wrapping impact protection which fits a wide range of shapes, sizes and diameters and provides a 360° shielding of the surrounded item, object or part against contact with users, vehicle or any moving body passing in close proximity to it.
  • the inner diameter Di of the stressfree coiled sleeve shaped body 1' is at least slightly smaller than the diameter Dcc of the circumscribed circle CC of the sectional outline of the elongated item, object or part 2 to be equipped with it, the cylindrical shell 1 formed by the impact protector thus surrounding said item, object or part 2 with at least a minimal elastic clamping force.
  • the surrounding shell 1 forming the impact protector remains attached to the considered item, object or part 2 without any additional fixing means (be it mechanical or adhesive). Furthermore, it does not need any tool for attaching it and it can be removed without any damage or degradation to the item, object or part 2 forming the supporting and surrounded structure.
  • said impact protector can be attached and removed numerous times, theoretically indefinitely, without damage to it and without permanent structural deformation or any reduction of its elastic clamping force (when it is spread under constraint).
  • the ratio Di/Dcc may be comprised between 0,40 and 0,95, advantageously between 0,50 and 0,70, preferably around 0,60.
  • the shielded item, object or part 2 should be surrounded over its entire circumference at least by no less than one layer of foamed sheet material 3, to provide a 360° uninterrupted protection.
  • the impact protector shows in its stressfree coiled sleeve shape at least two mutually overlapping layer 4, 4' portions, preferably over at least 50% of the circumference of the sleeve shaped body 1' ( figures 3A to 3C ).
  • a first improved version of the impact protector may show enhanced shielding at least in an area of the item, object or part 2.
  • the invention may propose that said protector constitutes an absorbing cylindrical shell 1 having at least two superimposed layers 4, 4', 4" over at least 50% of its circumference, preferably over at least 100% of its circumference, when it is wrapped around the item, object or part 2 to encapsulate or shield ( figures 3C and 6 ).
  • a further improvement of the impact protector can be achieved when the rectangular or square shaped plate or sheet 3 of foamed material has a winding length, i.e. a length WL in a direction perpendicular to its self-winding axis WA, such that in its stressfree coiled sleeve shape it shows at least two overlapping layers 4, 4' of foam sheet 3 material over its entire circumference, preferably also when wrapped around an item, object or part 2 to be shielded or encapsulated ( figure 6 ).
  • a winding length i.e. a length WL in a direction perpendicular to its self-winding axis WA, such that in its stressfree coiled sleeve shape it shows at least two overlapping layers 4, 4' of foam sheet 3 material over its entire circumference, preferably also when wrapped around an item, object or part 2 to be shielded or encapsulated ( figure 6 ).
  • its stressfree coiled sleeve shape may show two overlapping layers 4, 4' of foam sheet material over a major part of its circumference, for example between 60% and 80% of said circumference, and three such overlapping layers 4, 4', 4" over the remaining part of said circumference ( figure 3C ).
  • a most preferred embodiment of the impact protector of the invention verifies both of the two last aspects mentioned herein before.
  • the plate or sheet 3 may show, in a strip-like area 5 extending along its edge 5' located outside in the stressfree coiled sleeve shape, a continuously reducing thickness, tapering towards the ridge of said edge 5', so as to form a wedge-like or bevelled outer section 5", having preferably an angle of about 10° ( figure 4 ).
  • a secondary function of the impact protector may be to signal the item, object or part 2 it is mounted on.
  • the plate or sheet 3 of foamed material has a high visibility marking on its face 3' corresponding to the outer-facing surface in its stressfree coiled sleeve shape, preferably a bicoloured striped pattern, for example alternatively black and yellow or red and white.
  • the plate or sheet 3 of foamed material is provided, on its face 3' corresponding to the outer-facing surface in its stressfree coiled sleeve shape, with a laminated, visually marked film or foil 6, preferably showing a black and yellow striped pattern, said film or foil 6 being advantageously embossed.
  • the visible marking of the outer face of the impact protector will be less impacted by the deformation imposed by the sectional shape of the shielded item, object or part 2 when at least two layers are surrounding said latter.
  • the foamed material consists of reticulated polyethylene foam having a density between 15 kg/m 3 and 50 kg/m 3 , advantageously between 20 kg/m 3 and 40 kg/m 3 , preferably around 30 kg/m 3 , and the sheet or plate 3 has a current thickness between 5 mm and 15 mm, advantageously between 6 mm and 10 mm, preferably around 7 mm.
  • the laminated film or foil 6 is advantageously a polyethylene film, preferably with a thickness between 100 ⁇ m and 150 ⁇ m, most preferably around 120 ⁇ m.
  • the invention also concerns a process for producing an impact protector as described herein before, characterized in that it mainly comprises the steps of:
  • the striped pattern of the marking may, for example, verify the criteria set in the French normative related to safety signaling as mentioned in the French Decree: "Arrêté du 4admi 1993 - version consolidée du 21 DT 2019".

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Buffer Packaging (AREA)
EP19195398.3A 2019-09-04 2019-09-04 Aufprallschutz und verfahren zur herstellung Withdrawn EP3789312A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19195398.3A EP3789312A1 (de) 2019-09-04 2019-09-04 Aufprallschutz und verfahren zur herstellung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19195398.3A EP3789312A1 (de) 2019-09-04 2019-09-04 Aufprallschutz und verfahren zur herstellung

Publications (1)

Publication Number Publication Date
EP3789312A1 true EP3789312A1 (de) 2021-03-10

Family

ID=67874247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19195398.3A Withdrawn EP3789312A1 (de) 2019-09-04 2019-09-04 Aufprallschutz und verfahren zur herstellung

Country Status (1)

Country Link
EP (1) EP3789312A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1882642A2 (de) * 2006-07-28 2008-01-30 Alessandro Porta Umwicklung für kleine Artikel, insbesondere Nahrungsmittel
EP3003717A1 (de) * 2013-06-06 2016-04-13 3M Innovative Properties Company Artikel und verfahren zum einwickeln eines substrats mit einer polymerstruktur
US9533786B1 (en) * 2016-07-15 2017-01-03 Feinstein Patents, Llc Self-fitting, self-adjusting, automatically adjusting and/or automatically fitting fastener or closing device for packaging

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1882642A2 (de) * 2006-07-28 2008-01-30 Alessandro Porta Umwicklung für kleine Artikel, insbesondere Nahrungsmittel
EP3003717A1 (de) * 2013-06-06 2016-04-13 3M Innovative Properties Company Artikel und verfahren zum einwickeln eines substrats mit einer polymerstruktur
US9533786B1 (en) * 2016-07-15 2017-01-03 Feinstein Patents, Llc Self-fitting, self-adjusting, automatically adjusting and/or automatically fitting fastener or closing device for packaging

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