EP3289917A1 - Rucksack mit lendenstütze - Google Patents

Rucksack mit lendenstütze Download PDF

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Publication number
EP3289917A1
EP3289917A1 EP17001473.2A EP17001473A EP3289917A1 EP 3289917 A1 EP3289917 A1 EP 3289917A1 EP 17001473 A EP17001473 A EP 17001473A EP 3289917 A1 EP3289917 A1 EP 3289917A1
Authority
EP
European Patent Office
Prior art keywords
rucksack
projections
portions
articulated joint
lumbar support
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Withdrawn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
EP17001473.2A
Other languages
English (en)
French (fr)
Inventor
Marko Vuk
Alen Vuk
Bojan Poljansek
Mitja Laharnar
Gasper Dolenc
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.)
Live d o o
Original Assignee
Live d o o
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 Live d o o filed Critical Live d o o
Publication of EP3289917A1 publication Critical patent/EP3289917A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04—Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • A45F3/047—Sacks or packs carried on the body by means of two straps passing over the two shoulders with adjustable fastenings for the shoulder straps or waist belts
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/12—Shoulder-pads
    • A45F2003/122—Back cushioning parts or details of backpacks, e.g. with ventilation
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/12—Shoulder-pads
    • A45F2003/127—Dorsal or hip pads for the lumbar back or for the waist

Definitions

  • the invention refers to a wide range of rucksacks, such as rucksacks used as school bags, hiking backpacks, and mountaineering backpacks.
  • Rucksacks provided at their lower back area with a padding a so-called lumbar support
  • the function of a lumbar support is to transfer part of the rucksack's weight from user's shoulders to the lumbar area; the lumbar support also functions as a spacer element that shifts the back of the rucksack somewhat away from a user's back, thus allowing air circulation along a user's back and preventing excessive sweating.
  • a solution is known from prior art, in which a lumbar support pivots as the hips swing. It is disclosed in document US 2006/0151559 A1 .
  • a rotation link is formed between a back of the rucksack and a hip belt for fastening the rucksack, said link allowing rotation in vertical direction.
  • a disadvantage of this solution lies in that the rotation link does not provide for tilting the hip belt for fastening the rucksack backwards and forwards with respect to the back of the rucksack.
  • a rotary articulated joint is formed between the frame of a rucksack and the lumbar support, said support being connected with the hip belt for fastening the rucksack; the articulated joint allows rotation in all directions, resulting in the fact that the rucksack is comfortable to carry.
  • a disadvantage of this solution is a freely rotating rotary link when the rucksack is not used with the hip belt fastened, the link can consequently assume an improper position.
  • a technical problem is how to conceive a rucksack with a rotary link between a lumbar support of the rucksack and a back of the rucksack, which will allow adjustment of the support to the back or a correct position of the lumbar support in the user's lumbar area even if the rucksack has no hip belt or if the latter is not used by the user.
  • a further task of the invention is to absorb shocks of a container part of the rucksack along the user's lumbar area while he is walking.
  • the width of the recesses in the circumferential wall of the second portion is larger than the width of the first projections of the first portion, such that, in the assembled position of the first and second portions, limited movement around the joint in the plane of the first or second portions is allowed.
  • the height of the first projections of the first portion is selected in a way that, in the assembled position of the first and second portions when they are arranged parallel to each other, the first projections do not reach the bottoms of the recesses in the circumferential wall of the second portion, wherewith limited movement around the joint in transversal directions to the plane of the first or second portions is allowed.
  • the second projections of the second portion which engage with the spherical segment of the first portion in the working position, are elastically deformable in order to allow assembly of the first and second portions and subsequent disassembly.
  • One of the first and second portions is connected with the lower part of the back of the rucksack, and the other of them is connected with the lumbar support.
  • the first and second portions in the form of a plate are further dimensioned in a way to allow linear motion one with respect to the other in axial direction when in the assembled position.
  • the articulated joint may be fabricated from a metallic material, such as aluminium, plastics, such as polyamide, polyamide reinforced with glass fibres, nylon, POM or a combination thereof.
  • the articulated joint may be provided with at least one spring that forces the articulated joint to its equilibrium state when deflected.
  • An advantage of the rucksack with the lumbar support of the invention over known solutions lies in that the lumbar support allows perfect adjustment to the user's lumbar area while he is walking, because the support can move around the articulated joint in all three degrees of freedom with respect to the back of the rucksack.
  • the limited movement of the lumbar support around the articulated joint prevents an improper position of the lumbar support.
  • Proper movement and position of the lumbar support is yet additionally improved if the articulated joint is provided with a spring. If the articulated joint is provided with a spring, the rucksack of the invention has a further advantage, namely the shocks caused by the rucksack against the user's lumbar area while he is walking are absorbed.
  • a rucksack 1 that comprises:
  • the first 7 and second 11 portions in the form of a plate are further dimensioned in a way to allow linear motion one with respect to the other in axial direction when in the assembled position.
  • a stroke H represents a difference between the utmost compressed and the utmost opened position of the first 7 and second 11 portions of the articulated joint in the assembled state.
  • the width of the recesses 14 in the circumferential wall 13 of the second portion 11 is larger than the width of the first projections 9 of the first portion 7, such that, in the assembled position of the first and second portions, limited movement around the joint in the plane of the first or second portions is allowed.
  • the height of the first projections 9 of the first portion 7 is selected in a way that, in the assembled position of the first 7 and second 11 portions when they are arranged parallel to each other, the first projections 9 do not reach the bottoms of the recesses 14 in the circumferential wall 13 of the second portion, wherewith limited movement around the joint in transversal directions to the plane of the first or second portions is allowed.
  • the second projections 12 of the second portion 11, which engage with the spherical segment 8 of the first portion 7 in the working position, are elastically deformable in order to allow assembly of the first and second portions and subsequent disassembly.
  • One of the first 7 and second 11 portions is connected with the lower part of the back 3 of the rucksack, and the other of them is connected with the lumbar support 5.
  • a connection between the first 7 or second 11 portions and the lower part of the back 3 of the rucksack or the lumbar support 5 is formed in one of the following ways: by gluing, welding, stitching, with circumferentially arranged screws, by a centrally arranged external thread and a nut provided with a flange, by a snap-fit connection, or a combination thereof.
  • a connection between the first 7 or second 11 portions and the lower part of the back 3 of the rucksack or the lumbar support 5 with centrally arranged external thread and a nut provided with a flange is formed in a way that the rear side of the first 7 or second 11 portions is provided with a lug 19 with an external thread 20 that is inserted into the recess in the back 3 of the rucksack or in the lumbar support 5, a nut 21 with a flange 22 is fastened from the other side, wherein the flange presses the material of the back of the rucksack or the lumbar support against the rear side of the first or second portions.
  • the rear side of the first 7 or second 11 portions is further provided with at least one projecting part 23 that reaches into the material of the back of the rucksack or the lumbar support to prevent rotation of the first 7 and second 11 portions.
  • a connection between the first 7 or second 11 portions and the lower part of the back 3 of the rucksack or the lumbar support 5 with a snap-fit connection is formed in a way that elastically deformable hook-like projections are formed on the rear side of the first 7 or second 11 portions, wherein a washer plate with holes is further foreseen, wherein the hook-like projections, in the assembled state, engage with the holes in the washer plate, the material of the back of the rucksack or the lumbar support being arranged therebetween.
  • the first 7 and second 11 portions in the form of a plate are further dimensioned in a way to allow linear motion one with respect to the other in axial direction when in the assembled position.
  • a stroke H represents a difference between the utmost compressed and the utmost opened positions.
  • the articulated joint may be provided with at least one spring 17, 18 that forces the articulated joint to its equilibrium state when deflected and at the same time absorbs shocks of the rucksack that occur while the user is walking.
  • first 7 or second 11 portions Peripherally on the front side of the first 7 or second 11 portions, projections and/or indentations for receiving four first helical springs are formed, said springs being equidistantly arranged on the circumference between the first and second portions of the articulated joint.
  • a second helical spring is arranged between the first 7 and second 11 portions centrally around a spherical joint formed by the spherical segment 8 and the second projections 12.
  • a spring connection between the first 7 and second 11 portions is formed by a third helical spring 18 arranged centrally in the hollow spherical segment 8 perpendicularly to the first 7 or second 11 portions.
  • a spring connection between the first 7 and second 11 portions is formed by a cantilever spring 17 arranged centrally in the hollow spherical segment 8 perpendicularly to the first 7 or second 11 portions.
  • the cantilever spring can be made from a plastic elastic material or a metallic material.
  • the articulated joint 6 may be fabricated from a metallic material, such as aluminium, plastics, such as polyamide, nylon, POM or a combination thereof.
  • the material of the articulated joint 6 may further be reinforced with fibres, for instance glass fibres.
  • the lumbar support may further be provided with a belt 30 to be fastened around a user's belly in order to fix the rucksack.

Landscapes

  • Portable Outdoor Equipment (AREA)
EP17001473.2A 2016-09-01 2017-09-01 Rucksack mit lendenstütze Withdrawn EP3289917A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI201600224A SI25267A (sl) 2016-09-01 2016-09-01 Nahrbtnik z ledveno oporo

Publications (1)

Publication Number Publication Date
EP3289917A1 true EP3289917A1 (de) 2018-03-07

Family

ID=60083057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17001473.2A Withdrawn EP3289917A1 (de) 2016-09-01 2017-09-01 Rucksack mit lendenstütze

Country Status (2)

Country Link
EP (1) EP3289917A1 (de)
SI (1) SI25267A (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355075A (en) 1966-07-25 1967-11-28 William H Dean Pack frame
EP0628265A1 (de) * 1993-06-10 1994-12-14 Modan Industries (1983) Ltd. Rucksack
US20060151559A1 (en) 2005-01-13 2006-07-13 Kristian Gravseth Support for a hip belt for a rucksack
WO2015080956A1 (en) * 2013-11-27 2015-06-04 1/1Msa Technology, Llc Adjustable lumbar support for mounting on a backpack and backpack having the same
US20150189974A1 (en) * 2014-01-03 2015-07-09 Easton Technical Products, Inc. Pivotable pack frame apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355075A (en) 1966-07-25 1967-11-28 William H Dean Pack frame
EP0628265A1 (de) * 1993-06-10 1994-12-14 Modan Industries (1983) Ltd. Rucksack
US20060151559A1 (en) 2005-01-13 2006-07-13 Kristian Gravseth Support for a hip belt for a rucksack
WO2015080956A1 (en) * 2013-11-27 2015-06-04 1/1Msa Technology, Llc Adjustable lumbar support for mounting on a backpack and backpack having the same
US20150189974A1 (en) * 2014-01-03 2015-07-09 Easton Technical Products, Inc. Pivotable pack frame apparatus

Also Published As

Publication number Publication date
SI25267A (sl) 2018-03-30

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