EP3354157A1 - Sac a dos - Google Patents

Sac a dos Download PDF

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Publication number
EP3354157A1
EP3354157A1 EP18154278.8A EP18154278A EP3354157A1 EP 3354157 A1 EP3354157 A1 EP 3354157A1 EP 18154278 A EP18154278 A EP 18154278A EP 3354157 A1 EP3354157 A1 EP 3354157A1
Authority
EP
European Patent Office
Prior art keywords
rucksack
panel
frame
enclosure
section
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Withdrawn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
EP18154278.8A
Other languages
German (de)
English (en)
Inventor
Christian McGill
Euan Bruce
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.)
Berghaus Ltd
Original Assignee
Berghaus 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 Berghaus Ltd filed Critical Berghaus Ltd
Publication of EP3354157A1 publication Critical patent/EP3354157A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • 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
    • A45F3/08—Carrying-frames; Frames combined with sacks
    • 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
    • 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
    • A45F2003/045—Sacks or packs carried on the body by means of two straps passing over the two shoulders and one additional strap around the waist
    • 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
    • A45F2003/125—Back cushioning parts or details of backpacks, e.g. with ventilation with ventilation

Definitions

  • This invention has to do with a rucksack (or backpack) for use e.g. by a hiker to carry a load e.g. when walking.
  • the invention relates more particularly to rucksacks that are configured to provide a ventilation gap between the user's back and the rucksack when worn.
  • a conventional rucksack comprises a back attachment system to be worn by the user and a, typically flexible, enclosure mounted on the back attachment system for containing a load to be carried by a user.
  • the back attachment system generally includes a pair of shoulder straps and a hip belt.
  • Known rucksacks often have a frame supporting the back wall of the enclosure, to which the back attachment system is mounted. Upper ends of the shoulder straps are attached at or near the top of the frame and the hip belt at or near the bottom.
  • a scapula pad can be provided at the top end, where the straps attach, to improve comfort and, similarly, the hip belt will typically be padded.
  • the upper ends of the shoulder straps or the scapula pad to which they are attached can be adjusted up or down the frame relative to the hip belt to change the length of the back adjustment system to fit more closely to the length of the user's back.
  • a number of systems have been developed to create a ventilation gap between the user's back and the back wall of the enclosure, such as Berghaus' "Freeflow”TM systems.
  • These systems typically include resilient vertical frame members supporting the back wall of the rucksack enclosure, one to either side of the back wall, that are held in tension in an arc shape by an inelastic, air permeable mesh fabric panel connected between the top and bottom ends of the frame members.
  • the mesh panel contacts the wearer's back whilst the arc shape of the frame members holds the back wall of the rucksack enclosure away from the user's back to create a ventilation gap through which air can circulate.
  • such an arrangement can help keep the user's back cool and significantly reduce perspiration.
  • the arc shape of the frame means that the enclosure is spaced a significant distance from the user's back. This disadvantageously shifts the centre of gravity of a load in the enclosure further from the user, as well as impinging on the internal space of the enclosure.
  • Some rucksacks have sought to address this problem by replacing the tensioned, arc shaped frame members with pre-shaped, rigid frame members that are shaped to more closely conform the shape of the user's back to maintain a more uniform gap between the enclosure and the user's back.
  • An example is described in GB-A-2413948 . This keeps the centre of gravity closer to the user's back.
  • the rigid frame members used in such rucksacks tend to be expensive as they must be made from strong but lightweight materials, so are typically reserved for "high end" rucksacks and have not been widely adopted.
  • a further disadvantage of known rucksacks with back ventilation systems is that they tend to be of fixed back length, so the fit cannot be optimised for users with different length backs.
  • Mechanisms for enabling adjustment of the back length by attaching a scapula pad to the frame or back wall of the pack in an adjustable manner will tend to compromise the air gap between the back wall of the rucksack enclosure and the user's back.
  • the invention aims to provide a back system for a rucksack that provides, in combination, a ventilation gap and an adjustable back length.
  • Preferred embodiments of the rucksack have an air gap with one or more mesh webs spanning the air gap from top to bottom and a scapula pad adjustably mounted on the one or more mesh webs.
  • a pre-shaped frame to form a low-profile air gap.
  • this frame is a pre-shaped panel that extends across the full width (or nearly the full width) of the back wall of the enclosure.
  • a panel can be made relatively inexpensively from a plastics material, e.g. by moulding. This concept can be used independently (i.e. without the adjustable back system) to provide a less expensive pack that nevertheless has the benefits associated with a low-profile air gap, namely less impingement on the internal space of the rucksack enclosure and a centre of gravity close to the user's back.
  • the invention provides a rucksack comprising:
  • the top ends of the shoulder straps are preferably mounted on the web element (s) via a panel that engages with and is able to slide up and down the web element(s).
  • the top ends of the shoulder straps can be attached to this sliding panel or be formed integrally with it.
  • the sliding panel may be or incorporate one or more scapula pads.
  • the rucksack will typically also include a hip belt mounted in the region of the bottom end of the frame. The adjustment of the position of the top ends of the shoulder straps relative to the hip belt adjusts the back length of the rucksack.
  • the adjustable shoulder straps By mounting the adjustable shoulder straps on web elements that span the air gap, the top ends of the straps and any e.g. scapula pad they are fixed to need not impinge on the air gap between the web elements and the back wall of the enclosure as they are adjusted. In this way, the back length of the rucksack can be adjusted without seriously compromising the air gap and the ventilation it provides.
  • Securing means are preferably provided to secure the shoulder straps in said first position and, alternatively, in said second position.
  • the shoulder straps can also be secured in one or more positions intermediate the first position and the second position.
  • the securing means may, for example, be a clip or clasp or other selectively releasable fixing element.
  • the securing means comprises two or more fixtures on the back wall of the enclosure and a complementary fixture joined to the shoulder straps that can selectively be engaged with one of the fixtures on the back wall.
  • the complementary fixture on the shoulder straps can be disengaged from one fixture on the back wall of the enclosure, the straps adjusted up or down the web element(s) to a new position corresponding to another of the fixtures on the rear wall and the shoulder strap fixture then engaged in the back wall fixture at the new position.
  • the fixtures on the back wall may be loops with the complementary fixture joined to the shoulder straps being a hook, or vice versa.
  • the or each web element is preferably constructed from an air permeable mesh fabric.
  • the frame may be formed by resilient frame members that are bent into a curved shape and held in tension by the web elements to maintain the air gap. More preferably, however, the frame is pre-shaped to define the air gap. Preferred embodiments of this aspect of the invention employ a pre-shaped frame in accordance with the second aspect of the invention below.
  • the invention provides a rucksack comprising:
  • the back attachment system will typically comprise a pair of shoulder straps. It preferably also comprises a hip belt.
  • the panel can be pre-formed, during manufacture, to have the shape desired to create the air gap, so that in the assembled rucksack it does not need to be further bent and placed under tension to create the desired gap.
  • the air gap can be reliably maintained across the full width of the rucksack.
  • the air gap can have a low-profile, preferably of substantially the same depth across a majority of the height and width of the back wall of the rucksack. This can keep a centre of gravity of a load in the enclosure close to the user's back and minimises the impingement of the frame on the internal space of the enclosure.
  • the pre-shaped panel may be formed of any suitable material but is preferably formed from a plastics material. This can provide a lightweight yet inexpensive alternative to the pre-bent metal rods that have previously been used.
  • the pre-shaped panel preferably has a generally flat central section and a bottom section that is bent to protrude forwardly (toward the user's back) of the central section.
  • the panel may also have a top section that is bent to protrude forwardly of the panel.
  • the lower forwardly protruding section is intended to be adjacent the user's lower lumbar region.
  • the rucksack comprises a hip belt, it may be mounted on this lower protruding section of the frame.
  • Top ends of the shoulder straps may be mounted in a fixed position adjacent the top protruding section of the frame, preferably at a lower edge of that protruding section, although in preferred embodiments the shoulder straps are adjustable, as discussed below.
  • the flat, central section of the pre-shaped panel is preferably at least 30% of the vertical extent of the panel and may be 40% or 50% or more of the vertical height of the panel.
  • the top and bottom sections of the panel preferably protrude forwardly of the central section by at least 2cm (this being the approximate depth of the resultant air gap) and more preferably by about 3cm.
  • the pre-shaped panel may have a continuously concave curved shape or other appropriate shape to create the desired air gap.
  • the air gap will be at least 2cm deep and more preferably at least 3cm deep, although it is desirable that the air gap is not made too deep (e.g. no more than 10cm and more preferably no more that 5cm)
  • One or more air permeable mesh elements may extend generally vertically across the air gap. Such elements are intended to rest against the user's back to help maintain the spacing between the user's back and the back wall of the enclosure that is created by the shape of the frame.
  • the shoulder straps are preferably adjustable relative to the frame to adjust the back length of the rucksack.
  • Top ends of the shoulder straps may, for example, be mounted on the pre-shaped panel (e.g. to edges of the panel) and adjustable thereon.
  • the shoulder straps are adjustable in accordance with the first aspect above.
  • the invention provides a rucksack comprising:
  • Fig. 1 illustrates schematically the main concepts and constructional components embodied in the exemplary rucksack illustrated in the other figures and discussed below.
  • the rucksack incorporates a pre-shaped frame 10, which in this example is a moulded plastic panel.
  • This frame 10 supports the back wall of the load carrying enclosure of the rucksack and may be retained within a pocket in the back wall. It extends to substantially the full width of the rucksack back wall.
  • the frame has a flat central section 12 and top and bottom sections 14, 16 that protrude forwardly (i.e. towards the user's back) of the central section.
  • Two air permeable mesh web elements 18 extend from the top section 14 of the frame to the bottom section 16 of the frame.
  • the mesh elements 18 are spaced forwardly of the central section 12 of the frame 10.
  • the mesh elements 18 rest against the user's back and the central section 12 of the frame 10 holds the back wall of the rucksack enclosure away from their back.
  • An air gap 20 between the mesh elements 18 and the central section 12 of the frame (corresponding to the back wall of the rucksack), allows air to circulate between the user's back and the rucksack enclosure.
  • the upper ends 22 of two shoulder straps 24 are fixed to a scapula pad 26.
  • the scapula pad 26 is mounted on the two mesh elements 18 and can slide up and down these elements to adjust the position of the top ends 22 of the straps 24 to be more or less spaced from the bottom section 16 of the frame 10 to adjust the effective length of the back of the rucksack.
  • Figs. 2 to 5 show views of a rucksack incorporating the conceptual and constructional features schematically shown in fig. 1 .
  • the rucksack has a frame (not shown) that is a pre-shaped moulded plastic panel, retained within a pocket in the back wall 30 of the rucksack.
  • Two generally parallel air permeable mesh fabric strips 18 extend from a top end of the back wall 30 to a bottom end, spanning a ventilation air gap that is formed by the shape that the frame gives to the back wall 30.
  • the rucksack includes a hip belt 32 at the lower end of the back wall 30 and a shoulder harness arrangement 34 towards the top end of the back wall 30.
  • the shoulder harness arrangement 34 includes a scapula pad 26 and two shoulder straps 24.
  • the scapula pad 26 is slidably mounted on the mesh strips 18 to allow the position of the scapula pad 26, and hence the top ends of the shoulder straps 24, to be adjusted relative to the hip belt 32, thus altering the back length of the rucksack.
  • a rear side of the scapula pad 26 (see fig. 4 ) has two fabric patches 40 affixed thereto, one to either side of the pad 26. These patches are joined to the rear side of the scapula pads at their side edges only, so that they form tunnels on the rear side of the scapula pad 26 through which respective ones of the mesh strips 18 can pass top to bottom. The scapula pad is thereby retained on the mesh strips 18 but is free to slide up and down them.
  • the scapula pad 26 can be secured in any of a number of positions along the mesh strips 18 by a hook or buckle 50 on the scapula pad 26 that can be selectively engaged with a selected one of a series of loops 52 formed on the rear wall 30 of the rucksack enclosure.
  • the hook 50 is attached to, and hangs down from, the rear face of the scapula pad 26 by a webbing loop 56.
  • loops 52 are formed by a strip of fabric 54 that is secured at vertically spaced apart horizontal regions to the back wall 30 so that the fabric between the secured regions stands out from the back wall 30 to form the loops 52.
  • the hook 50 is disengaged from the loop 52 it is currently engaged in, the scapula pad is slid up (or down) the mesh strips 18 to the desired new position, in which the hook 50 can be engaged with another of the loops 52.
  • length adjustable top tension straps 58 may connect a mid portion of each shoulder strap 24 to the back wall of the rucksack above the highest position possible for the scapula pad 26. These straps 58 can be lengthened when the scapula pad 26 is moved down (to shorten the back length) and shortened when the scapula pad 26 is moved up the back of the rucksack (to increase the back length).
  • the length of the shoulder straps is also itself adjustable using adjusters 60 at the lower end of each strap and a chest strap 62 is provided to help keep the shoulder straps sitting correctly on the shoulders in use.
  • Fig. 6 shows a side profile of the moulded plastic board or panel used as the frame of the rucksack.
  • the panel has a flat central section 12 and top and bottom sections 14, 16 that protrude forwardly (towards the user's back) of the central section 10 by about 3cm to form the air gap 20.
  • the panel is bent along a first fold line 70, there is then a further straight section 72 followed by a second bend at a second fold line 74, which defines the forward-most extent of the panel.
  • the bottom section 16 is shaped in a similar fashion.
  • the panel has this same section across its complete width, which corresponds generally to the width of the back wall of the rucksack.
EP18154278.8A 2010-05-14 2011-05-10 Sac a dos Withdrawn EP3354157A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1008145.3A GB2480331B (en) 2010-05-14 2010-05-14 Rucksack
EP11165496.8A EP2386221B1 (fr) 2010-05-14 2011-05-10 Sac à dos

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP11165496.8A Division EP2386221B1 (fr) 2010-05-14 2011-05-10 Sac à dos
EP11165496.8A Division-Into EP2386221B1 (fr) 2010-05-14 2011-05-10 Sac à dos

Publications (1)

Publication Number Publication Date
EP3354157A1 true EP3354157A1 (fr) 2018-08-01

Family

ID=42334832

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11165496.8A Not-in-force EP2386221B1 (fr) 2010-05-14 2011-05-10 Sac à dos
EP18154278.8A Withdrawn EP3354157A1 (fr) 2010-05-14 2011-05-10 Sac a dos

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11165496.8A Not-in-force EP2386221B1 (fr) 2010-05-14 2011-05-10 Sac à dos

Country Status (5)

Country Link
US (1) US20110284609A1 (fr)
EP (2) EP2386221B1 (fr)
JP (1) JP2012020111A (fr)
KR (1) KR20110126069A (fr)
GB (2) GB2480331B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103494431A (zh) * 2013-10-24 2014-01-08 南京际华三五二一特种装备有限公司 一种高压锅背架
EP2886005B1 (fr) 2013-12-20 2018-08-08 Thule IP AB Mécanisme de verrouillage d'un sac à dos
WO2015119877A1 (fr) * 2014-02-04 2015-08-13 Wright Michael Justin Pièce rapportée pour armature de sac à dos
US9848687B2 (en) 2015-12-31 2017-12-26 Joseph Ethan Valesko Adjustable strap height mechanism
JP6532447B2 (ja) * 2016-10-31 2019-06-19 株式会社丸山製作所 背負式作業機
JPWO2018154715A1 (ja) * 2017-02-24 2019-12-12 竹田印刷株式会社 リュックサック
DE202017101329U1 (de) * 2017-03-08 2018-06-13 Deuter Sport Gmbh Rucksack mit stufenloser Rückenlängenverstellung
US10806237B1 (en) * 2019-09-06 2020-10-20 Zarko Popovic Backpack having detachable straps and adjustable in position on user
DE202022102615U1 (de) 2022-05-12 2023-08-17 FOND OF GmbH Rückentragesystem für einen Rucksack oder eine Rückentrage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273087A1 (fr) * 1986-12-29 1988-07-06 PROPOSTA S.p.A. Sac à dos avec armature flexible réglable
WO1992002158A1 (fr) * 1990-08-10 1992-02-20 Ulrich Dausien Sac a dos
WO1997049312A1 (fr) * 1996-06-26 1997-12-31 Johnson Worldwide Associates, Inc. Systeme de transport de charge a armature flexible
US20050035170A1 (en) * 2003-08-12 2005-02-17 Bianchi International Backpack having framesheet assembly

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US4074839A (en) * 1976-05-10 1978-02-21 Wood Thomas E Internal frame backpack
CA1124693A (fr) * 1979-07-18 1982-06-01 Alan B. Chanter Cadre filiforme pour havresac
GB2130481B (en) * 1982-10-19 1986-10-22 Aarn Tate Improvements in and relating to back packs
FR2628612B1 (fr) * 1988-03-15 1990-07-27 Hoffer Philippe Sac a dos
JP2525530Y2 (ja) * 1989-08-30 1997-02-12 隆道 金野 背負いザック
EP0551733A3 (en) * 1991-12-13 1993-08-25 Modan Industries (1983) Ltd. Load carrier
IES61815B2 (en) * 1993-05-14 1994-11-30 Lowe Alpine Systems Int A harness for a rucksack
US5586699A (en) * 1994-02-14 1996-12-24 Johnson Worldwide Associates, Inc. Backpack support
DE29502899U1 (de) * 1995-02-21 1995-05-18 Deuter Sport & Leder Rucksack mit einer Verstelleinrichtung für die Tragegurte
FR2733129B1 (fr) * 1995-04-20 1997-05-30 Decathlon Sa Dispositif de reglage et de blocage des bretelles de portage d'un sac a dos
DE19518195C1 (de) * 1995-05-22 1997-01-09 Sternjakob Alfred Kg Schulranzen
US5762251C1 (en) * 1996-08-14 2001-12-11 Dana Design Ltd External frame backpack with flexible harness
US5904282A (en) * 1996-08-14 1999-05-18 K-2 Corporation External frame backpack harness
FR2778824B1 (fr) * 1998-05-25 2000-07-13 Lafuma Sa Systeme de portage a dos
JP3056999U (ja) * 1998-08-25 1999-03-09 株式会社協和 リュックサック
US6325262B1 (en) * 2000-08-31 2001-12-04 K-2 Corporation Backpack with ram air channel
KR100397222B1 (ko) * 2001-07-27 2003-09-13 주식회사 하이켐텍 배낭용 등받이
JP3511209B2 (ja) * 2001-09-21 2004-03-29 錦足袋株式会社 リュックサック
AUPR964501A0 (en) * 2001-12-21 2002-01-24 Viglione, Dean Peter Backpack
FR2837078B1 (fr) * 2002-03-15 2005-12-02 Lafuma Sa Dispositf de reglage en position de portage d'un sac a dos
KR200279319Y1 (ko) * 2002-03-29 2002-06-24 우동배 자동차 미끄럼 방지구
GB2413948B (en) * 2004-05-11 2007-07-25 Lowe Alpine Holdings Ltd Rucksack with back ventilation system
US8181834B1 (en) * 2009-06-03 2012-05-22 Here be Dragons;LLC Backpack

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273087A1 (fr) * 1986-12-29 1988-07-06 PROPOSTA S.p.A. Sac à dos avec armature flexible réglable
WO1992002158A1 (fr) * 1990-08-10 1992-02-20 Ulrich Dausien Sac a dos
WO1997049312A1 (fr) * 1996-06-26 1997-12-31 Johnson Worldwide Associates, Inc. Systeme de transport de charge a armature flexible
US20050035170A1 (en) * 2003-08-12 2005-02-17 Bianchi International Backpack having framesheet assembly

Also Published As

Publication number Publication date
GB2480331B (en) 2015-12-23
EP2386221B1 (fr) 2018-04-04
GB201518779D0 (en) 2015-12-09
KR20110126069A (ko) 2011-11-22
US20110284609A1 (en) 2011-11-24
GB2480331A (en) 2011-11-16
GB2528414B (en) 2016-05-04
GB2528414A (en) 2016-01-20
EP2386221A1 (fr) 2011-11-16
JP2012020111A (ja) 2012-02-02
GB201008145D0 (en) 2010-06-30

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