EP0495854B1 - Coussin de hanche pour sac a dos - Google Patents

Coussin de hanche pour sac a dos Download PDF

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Publication number
EP0495854B1
EP0495854B1 EP90915323A EP90915323A EP0495854B1 EP 0495854 B1 EP0495854 B1 EP 0495854B1 EP 90915323 A EP90915323 A EP 90915323A EP 90915323 A EP90915323 A EP 90915323A EP 0495854 B1 EP0495854 B1 EP 0495854B1
Authority
EP
European Patent Office
Prior art keywords
core
stiffening
user
pad according
hip
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.)
Expired - Lifetime
Application number
EP90915323A
Other languages
German (de)
English (en)
Other versions
EP0495854A1 (fr
Inventor
Michael Charles Parsons
Michael Adrian Farnworth
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.)
Karrimor International Ltd
Original Assignee
Karrimor International 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 Karrimor International Ltd filed Critical Karrimor International Ltd
Publication of EP0495854A1 publication Critical patent/EP0495854A1/fr
Application granted granted Critical
Publication of EP0495854B1 publication Critical patent/EP0495854B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • This invention relates to a rucksack hip pad.
  • Modern large capacity rucksacks generally comprise a fabric sack, a supportive frame comprising at least one substantially rigid vertical member mounted at the rear of the sack, a harness comprising shoulder pads, (often conjoined in the scapular region) mounted on the frame, and associated shoulder scraps, a lumbar pad mounted to the sack or frame centrally, below the shoulder pads, and, at each side of the lumbar pads, respectively hip pads, which merge into the straps and/connectors forming the hip belt.
  • a load within the sack is most efficiently and comfortably carried when a major proportion thereof is transmitted to the hips of the user via the hip pads, with the shoulder pads serving primarily a stabilizing function and transmitting only a minor proportion of load to the shoulders of the user.
  • the front shoulder region especially is anatomically sensitive and subject to discomfort, and the entire shoulder region is prone to injury if overstressed.
  • hip pads have usually been formed of flat pieces of foamed plastics material cut out from large sheets of material, and covered by a fabric envelope.
  • the foamed plastics core has been shaped so that in use the hip pads and lumbar pad together take up a frusto-conical configuration, generally adapted to fit around the hip region of the user.
  • stiffening has been provided, such as polypropylene plates onto which the hip pad cores have been mounted.
  • the load has continued to be transmitted primarily by pressure directed inwardly of the pelvic region of the user. The resultant compression at the top of the iliac crest of the user is undesirable, and can result in injury and/or serve discomfort in the case of heavy loads.
  • a rucksack hip pad comprises a core of foamed plastics material which has, in its surface which in use contacts a user's body, a recessed region extending from between a lower edge and an upper edge of the core to the lower edge thereof and configured to fit onto a hip of a user.
  • the upper edge of the recessed region will seat onto the iliac crest and will serve to transmit load thereto from above.
  • an integral hip and lumbar pad for a rucksack comprises a core of foamed plastics material which has, in its surface which in use contacts a user's body, symmetrically arranged recessed regions, each extending from between a lower edge and an upper edge of the core to the lower edge thereof and configured to fit onto respective hips of the user.
  • Pads according to either aspect are suitably made of closed cell polyethylene foam, of appropriate density for a reasonable degree of inherent stiffness.
  • closed cell polyethylene foam of appropriate density for a reasonable degree of inherent stiffness.
  • other foamed materials are possible, such as polyurethane.
  • the or each recessed region may be cut out, or more favourably from a manufacturing point of view, the foamed material may be moulded with an integral recess or recesses and any other suitable contouring.
  • the or each recessed region will generally be of reduced thickness compared to the remainder of the core.
  • the hip pad or the combined hip and lumbar pad of the invention may have stiffening means extending adjacent the upper edge of the core.
  • the purpose of this stiffening is to act in cantilever manner and transmit load directly from the rucksack frame, to which the rear edge margin of the pad is connected in use, to the top of the pelvis of the user.
  • This stiffening means may comprise a stiff web or plate, e.g. polypropylene, fixed to the surface of the pad remote from contact with the user's body (i.e. the opposite surface of the recessed region).
  • the recessed region to fit the hip of the user may extend to the front edge of the pad, such that hips of users of different body size can locate at different points within this longitudinally enlarged recess.
  • Such a pad can be non-adjustably attached to the rucksack, since when fixed in position it will still accommodate different hip positions of different users.
  • the stiffening means may advantageously be moulded integrally therewith, or embedded within the foam body.
  • the stiffening could be achieved by a much higher density region of foamed plastics, or a different composition of foamed plastics.
  • the recessed region may be of fixed longitudinal extent, effectively an inverted cup shape and the position of the foamed plastics core may be longitudinally (i.e. sidewise with respect to the rucksack and the user adjustable with respect to the stiffening means.
  • the stiffening will obviously be formed separate from the core and the adjustability may suitably be achieved by a row of apertures in the stiffening and studs or similar fastenings on the core, or projecting through corresponding apertures in the core, which are interengageable with selected ones of the row of apertures in the stiffening.
  • hip pad or combined hip and lumbar pad can be produced, all conforming to the invention, but comprising different sizes, different colours, different foamed plastics materials, or at least different densities thereof (hence variations in softness) and different types, sizes etc. of stiffening means, for example to suit male or female rucksack users, users of different body size, and rucksacks of different capacity (loading).
  • Such pads will each be covered by fabric, which is stitched therearound or adhered thereto, as that gives best appearance for a commerical product.
  • the fabric cover is not, however, functionally essential, so could be omitted.
  • rucksacks as defined in the introduction having either two hip pads, each with a recessed region configured to fit the user's hips, as discussed in the foregoing, or having a combined hip and lumbar pad provided with two such recessed regions.
  • a first type of hip pad in accordance with the invention comprises a generally quadrangular core 10 of foamed polyethylene of suitable stiffness. This tapers so that its rear end 11 in use is broader, while its front end 12 is narrower. It is longer in the front to rear direction than the top to bottom direction.
  • a recessed region 13 which extends to the front edge 12 and the lower edge 14.
  • the upper and rear edges 15, 16 defining the recess are champfered (rounded), and they also merge into each other via a curve, and these constitute ledges which fit onto the hip of the user. Via the upper edge 15 in particular forces are transmitted downwards to the pelvic girdle of the user.
  • the recessed region 13 may be moulded in, or cut out, depending on the method of manufacture of the pad. In this example the recessed region is thinner than the remainder of the core 10.
  • a stiffening plate 17, e.g. of polypropylene is fixed to the opposite side of the foamed plastics core 10.
  • This plate 17 is roughly L shaped and extends along the upper and rear edge margins of the foamed plastics, generally corresponding to the non-recessed region of the other surface.
  • a strip of webbing 18 is also attached on the same surface as the plate 17, which extends to form one part of the hip belt, for fastening around the body of the user.
  • a pair of looped elements 19 are also attached at the rear edge of the plate 17, whereby the hip pad may be mounted onto a vertical frame member 20 (see Fig. 1) of the rucksack.
  • any or all of the plate 17, the webbing 18 and the connection elements 19 may be integrally connected in the moulding process. If the foamed plastics is cut out, these components are simply attached e.g. by gluing or fastening means.
  • a fabric envelope may optionally cover at least the foamed plastics core 10 and the plate 17, with the webbing 18 and connectors 19 possibly attached to the outside of the fabric, or projecting therethrough.
  • Fig. 1 merely shows the relative positioning of two such hip pads, designated generally by reference numerals 21 and 22, in a fully assembled rucksack.
  • the rucksack comprises a fabric sack 23, a supporting frame constituted by parallel vertical bars 20 mounted at the rear of the sack, shoulder pads 24 joined in the scapular region 25, where they are slidably mounted on the respective bars 20, and associated shoulder straps 26, and top straps 27.
  • a lumbar pad 28 is mounted on the sack, between the bars 20.
  • the respective hip pads 21 are mounted symmetrically at each side of this lumbar pad 28, the respective bars 20 extending through the rear looped elements 19.
  • the stiffening plates 17 act in cantilever manner to transmit the load of the sack directly from the frame bars 20 to the hips of the user.
  • FIG. 4 An alternative style of hip pad is shown in Figs. 4 and 5, but the same reference numerals are used for corresponding components.
  • the L-shaped stiffening plate 17 and the foamed plastics core 10 are separate components.
  • the recess 13 of the core does not extend right to the front edge 12 of the core, but is roughly inverted cup shaped and is dimensioned more precisely to the configuration of the pelvis of a user of a certain stature.
  • This core (hence the recess 13 therein) is then adjustable sidewise relative to its supportive stiffening 17.
  • the stiffening 17 is shown with a longitudinal row of apertures 30, and core pad 10 is provided with spaced studs 31 which engaged with any selected spaced pair of such apertures 30.
  • Figs. 6 and 7 show an all-in-one hip and lumbar pad in which the same general principle of provision of recesses to fit over the pelvis are embodied.
  • this particular example comprises a moulded foamed polyethylene band 50 which is integrally configured to have, on a surface intended to contact the user's body, recessed regions 33 which merge into each other in the central lumbar region 38, and extend to the ends and the lower edge of the band 50, and protruding regions 35 thereabove as well as a central protrusion 36 adjacent the upper edge of this band.
  • This surface contour is designed to fit closely to the body contour of a user.
  • a relatively stiffer yet flexible sheet of polypropylene 51 is attached to the reverse surface of the foamed plstics 50, as shown in Fig. 7. This may be accomplished by adhesive, and an edging strip 32 of fabric provides a neat finish. Slotted elements 40 for mounting on frame bars 20 (see Fig. 1) of a rucksack are fastened to the sheet 51.
  • the two webbing parts of a hip belt strap 39 are also connected to the ends of the pad, being conveniently held between the plastics band 50 and the backing sheet 51.
  • Fig. 8 shows a variant wherein the stiff backing sheet 51 is cut away opposite to the recessed regions 33 so that only the upper and central regions are reinforced.
  • the hip belt strap 39 is in one piece and extends between the foamed plastics and the stiff sheet 51.

Landscapes

  • Portable Outdoor Equipment (AREA)
  • Earth Drilling (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Looms (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Bedding Items (AREA)

Claims (18)

  1. Coussin de hanche pour un sac à dos comprenant un noyau (10) en matière plastique alvéolaire, caractérisé en ce qu'il présente, dans sa surface qui, en cours d'utilisation, vient en contact avec le corps de l'utilisateur, une région évidée (13) s'étendant depuis entre un bord inférieur et un bord supérieur du noyau au bord inférieur de celui-ci et configuré pour s'adapter sur la hanche d'un utilisateur.
  2. Coussin de hanche et lombaire intégral pour un sac à dos comprenant un noyau (50) en matière plastique alvéolaire, caractérisé en ce qu'il présente dans sa surface qui, en cours d'utilisation, vient en contact avec le corps de l'utilisateur, des régions évidées (33) disposées symétriquement, chacune s'étendant depuis entre un bord inférieur et un bord supérieur du noyau au bord inférieur de celui-ci et configuré pour s'adapter sur les hanches respectives de l'utilisateur (Figures 6 à 8).
  3. Coussin selon la revendication 1 ou 2, dans lequel le noyau est réalisé en une mousse de polyéthylène à cellules fermées.
  4. Coussin selon la revendication 1, 2, ou 3, dans lequel le noyau en matière alvéolaire est fabriqué par moulage avec une région évidée (13) formée intégralement ou, respectivement, avec deux régions évidées (33) formées intégralement.
  5. Coussin selon l'une des revendications précédentes, dans lequel la ou chaque région évidée (13, 33) est d'une épaisseur réduite comparée au restant du noyau (10, 50).
  6. Coussin selon l'une des revendications précédentes présentant une bande (17, 51) en une matière de raidissement attachée à la surface du noyau (10, 50) qui, en cours d'utilisation, est éloignée du corps de l'utilisateur.
  7. Coussin selon l'une des revendications précédentes, présentant un moyen raidisseur (17, 51) s'étendant adjacent au bord supérieur du noyau (10, 50).
  8. Coussin selon la revendication 1 et la revendication 6 ou 7, dans lequel le matériau de raidissement ou le moyen raidisseur (17) a approximativement une forme de L (Figure 3 et 5).
  9. Coussin selon l'une des revendications 6, 7 ou 8, dans lequel le matériau de raidissement ou le moyen raidisseur (17, 51) comprend une feuille à contour en polypropylène, fixée à la surface du noyau (10, 50) éloignée du contact avec le corps de l'utilisateur.
  10. Coussin selon les revendications 4 et 9, dans lequel le noyau (10, 50) est réalisé par moulage et la plaque de raidissement (17, 51) est moulée intégralement avec celui-ci, ou est noyée dans le corps alvéolaire.
  11. Coussin selon l'une des revendications 6, 7 ou 8, dans lequel le matériau de raidissement ou le moyen raidisseur est constitué d'une région d'une densité bien plus élevée en plastique alvéolaire ou par une composition différente de plastique alvéolaire.
  12. Coussin selon l'une des revendications 6 à 11, dans lequel le matériau de raidissement ou le moyen raidisseur est seulement prévu dans ou sur des régions du noyau autre que la ou les régions évidées et la ou les régions de la surface opposée correspondant à celles-ci.
  13. Coussin selon l'une des revendications précédentes, dans lequel le ou chaque région évidée s'étend au bord avant du noyau.
  14. Coussin selon la revendication 1 et 6 ou 7, dans lequel la région évidée a une étendue longitudinale fixe, utilement une forme de coupelle inversée, et la position du noyau en plastique alvéolaire (10) est réglable longitudinalement (c'est-à-dire vers le côté relativement au sac à dos et à l'utilisateur) relativement au matériau de raidissement ou moyen raidisseur (17) (Figures 4 et 5).
  15. Coussin selon la revendication 14, dans lequel le réglage longitudinal du noyau relativement au raidisseur est réalisé par une rangée d'ouvertures (30) dans le raidisseur (17) et des goujons (31) ou des fixations similaires prévues sur le noyau, ou faisant saillie à travers les ouvertures correspondantes dans le noyau qui sont interengageables avec des ouvertures choisies de la rangée d'ouvertures dans le raidisseur.
  16. Coussin selon l'une des revendications précédentes et pourvu d'un recouvrement en tissu qui est cousu tout autour ou qu'on a fait adhérer à celui-ci.
  17. Sac à dos présentant deux coussins de hanche (21, 22) chacun avec une région évidée (13) configurée pour s'adapter aux hanches de l'utilisateur, tels que revendiqués dans la revendication 1.
  18. Sac à dos présentant un coussin de hanche et lombaire combiné avec deux régions évidées configurées pour s'adapter aux hanches de l'utilisateur, tels que revendiqués dans la revendication 2.
EP90915323A 1989-10-18 1990-10-12 Coussin de hanche pour sac a dos Expired - Lifetime EP0495854B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8923454 1989-10-18
GB898923454A GB8923454D0 (en) 1989-10-18 1989-10-18 Rucksack hip pad
PCT/GB1990/001576 WO1991005493A1 (fr) 1989-10-18 1990-10-12 Coussin de hanche pour sac a dos

Publications (2)

Publication Number Publication Date
EP0495854A1 EP0495854A1 (fr) 1992-07-29
EP0495854B1 true EP0495854B1 (fr) 1994-10-05

Family

ID=10664763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90915323A Expired - Lifetime EP0495854B1 (fr) 1989-10-18 1990-10-12 Coussin de hanche pour sac a dos

Country Status (8)

Country Link
EP (1) EP0495854B1 (fr)
AT (1) ATE112465T1 (fr)
AU (1) AU6537890A (fr)
DE (1) DE69013157T2 (fr)
DK (1) DK0495854T3 (fr)
GB (1) GB8923454D0 (fr)
NO (1) NO921405D0 (fr)
WO (1) WO1991005493A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5236112A (en) * 1991-07-31 1993-08-17 Mont-Bell Co., Ltd. Back bag
US5181638A (en) * 1991-12-09 1993-01-26 Mchale Daniel M Backpack with independently adjustable stabilizing straps and shoulder pads
GB9210129D0 (en) * 1992-05-11 1992-06-24 Karrimor Int Ltd A rucksack hip pad
US5341974A (en) * 1992-06-19 1994-08-30 Mont-Bell Co., Ltd. Back bag
US5361955A (en) * 1992-12-21 1994-11-08 Bianchi International Modular backpack
US5465886A (en) * 1994-03-15 1995-11-14 American Recreation Products, Inc. Pack
US5725139A (en) * 1994-08-15 1998-03-10 Mountainsmith, Inc. Backpack with adjustments for body size
US5564612A (en) * 1995-01-27 1996-10-15 Bianchi International Modular backpack
FR2823083B1 (fr) * 2001-04-04 2003-06-06 Pascal Bernard Ceinture de portage
DE102010025905B4 (de) 2009-08-18 2019-04-11 Adnan Demirkiran Abstützung für am Körper zutragende Lasten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194656A (en) * 1976-05-26 1980-03-25 Zufich Anthony C Backpack and frame apparatus
US4307826A (en) * 1979-07-25 1981-12-29 Stewart Marvin L Quick disconnect hip supported backpack
IE791814L (en) * 1979-09-24 1981-03-24 James Anthony Hayes Rucksack
GB2130481B (en) * 1982-10-19 1986-10-22 Aarn Tate Improvements in and relating to back packs

Also Published As

Publication number Publication date
DE69013157T2 (de) 1995-04-13
NO921405L (no) 1992-04-09
WO1991005493A1 (fr) 1991-05-02
DK0495854T3 (da) 1995-01-02
GB8923454D0 (en) 1989-12-06
DE69013157D1 (de) 1994-11-10
ATE112465T1 (de) 1994-10-15
NO921405D0 (no) 1992-04-09
EP0495854A1 (fr) 1992-07-29
AU6537890A (en) 1991-05-16

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