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

Definitions

• the present invention relates to an adjustable fixing device for the upper ends of the straps of a backpack.
• a backpack In order to be used in the best conditions of comfort, a backpack must be adapted to the morphology of the user, and in particular to the size of the latter.
• a backpack is equipped with suspenders which bear on the user's shoulders, as well as a belt, generally padded, comprising a support element on the user's back, and a closure element around the belly of it in order to stabilize the bag during its use.
• the belt even if it can be mounted floating on the bag to improve comfort, is not adjustable in height. Therefore, in order to adapt the bag to the morphology of the user it is necessary to have an adjustment of the point of attachment of the upper ends of the straps.
• a first solution consists in having between two longitudinal padding elements intended to bear on the back of the user, several fixed loops, used for mounting and fixing a central strap, this fixing being for example carried out at the using buckle and hook elements known under the trade name "velcro".
• This adjustment mode if it is effective, is not very easy to implement given the fact that, to change the position of the point of attachment of the suspenders, it is advisable to detach the strap which adheres strongly against the back of the bag, thanks to the Velcro device, at the passers-by which are close to each other.
• This technique therefore only allows, in practice, a final adjustment of the position of the attachment point of the suspenders, which is perfectly suitable if the bag is only used by one person, but does not allow a simple and rapid adaptation. since the bag is used successively and alternately by several people of different sizes.
• the object of the invention is to provide an adjustable fixing device for the upper ends of the straps of a backpack, which is of simple design, which allows instant adjustment of the position of the point of attachment of the straps, and which can be mounted, given its compactness, in backpacks whose back can be made of a flexible material over most of its surface.
• the device which it concerns comprises in combination:
• a plate fitted with means for fixing the upper ends of the two shoulder straps of the bag comprising an extension provided with two coaxial fingers, and
• a part fixed to the back of the bag comprising, arranged in its face turned towards the outside of the bag, several notched elements offset vertically, each notched element having two parallel housings in the form of hooks open at the bottom, separated one on the other by a recess, these two housings being intended to receive the two fingers of the strap attachment plate, means being provided to maintain these two fingers in the housings in which they have been engaged.
• the part fixed to the back of the bag which may for example comprise five successive stages, forms a sort of rack, in which the plate on which the upper ends of the shoulder straps of the bag are mounted can be instantaneously fixed.
• the load of the bag ensures a self-locking of the strap fastening plate in the housings of the part fixed on the back of the bag.
• This piece can be fixed for example between longitudinal padding elements bearing on the back of the user, or be accessible through a recess in a molded back intended to bear against the back of the user.
• the part fixed to the back of the bag has a generally rectangular shape and is in the form of a bowl delimited by a rim used for fixing to the back of the bag, and in which are integrated the hooks forming the housings, each of which is partly bounded by the bottom of the bowl and partly by a wing located substantially in the plane of the rim.
• the part is fixed to the back of the bag at the rim of the bag and can be made by sewing or also by fixing to using a strap top.
• each housing for a finger of the plate has, seen in cross section, a shape of cylindrical surface section of the same radius as that of the corresponding finger of the plate.
• This arrangement allows rotation of the wafer on which the straps are fixed so that, during the period of carrying the bag, it gives an orientation which promotes user comfort.
• the means intended to ensure the retention of the fingers in the housings are constituted, for each pair of housings situated at the same level, by an elastic tongue mounted in the bottom of the part, capable of s 'retract when the fingers of the wafer are put into place in a pair of housings, and after they have been put in place; to bear against the extension of the plate, equipped with the fingers, to avoid a displacement of these parts downward, when the bag is in the upright position.
• each housing intended to receive a finger is delimited by two converging surfaces from the outside of the housing towards the interior of the latter. this.
• the extension of the strap attachment plate from which two fingers protrude comprises a truncated cylindrical shoulder partially covering each finger, while each hook-shaped wing of a housing comprises, protruding from its face facing the other housing disposed at the same height, a shoulder comprising, on its face facing the interior of the housing, a section of cylindrical surface and of the same radius of curvature as each shoulder associated with a finger, the respective positions of the shoulders associated with a finger and the wing of a recess being such that they are offset in the position of insertion of the fingers into the housings, and that they are in contact when the strap attachment plate is oriented upwards, that is to say in the carrying position.
• the extension of the suspender attachment plate is located in a plan forming an angle with the plane of the plate.
• the shoulders partially covering the fingers protruding from the extension of the plate are turned, relative to the plane of the extension, on the side of the plane containing the strap attachment plate.
• the plate carrying the straps is arranged substantially perpendicular to the back of the bag, or even slightly inclined downwards, while in condition of use it is oriented upwards.
• Figure 1 is a view in perspective of a backpack equipped with this device for fixing and adjusting the upper ends of the suspenders;
• Figure 2 is an exploded perspective view of the part secured to the back of the bag and the plate for fixing the upper ends of the straps;
• Figure 3 is a detailed front view of a hook defining a housing for a finger of the wafer;
• FIG. I represents a backpack 2, comprising in a manner known per se a back, that is to say a part turned against the back of the user, equipped with padding elements 3.
• a belt ⁇ . At the bottom of the back is fitted a belt ⁇ ..
• the bag 2 is carried by means of two straps 5, the lower ends of which are fixed in a known manner to the bag, and the two upper ends of which are fixed by means of lights 6 in a plate 7.
• This plate 7 is itself mounted in an adjustable manner, in a part 8 fixed on the back of the bag, in a recess formed between the padding elements 3 thereof.
• the plate 7 is provided with an extension 9 forming an angle with it, the extreme edge of which is equipped with two fingers 10, these two fingers 10 being coaxial, and perpendicular to the longitudinal median plane of the plate.
• the plate 7 and its extension 9 are made of synthetic material, while the two fingers 10, which can be produced for example using a single rod, are metallic.
• the extension 9 of the plate 7 comprises a cylindrical shoulder 12 comprising a truncated part 11 and partially covering each finger.
• the part 8 intended to be fixed on the back of the bag has a generally rectangular shape and is in the form of a bowl delimited by a rim 13, comprising lights 1 used for fixing by sewing or by strap rings on the back of the bag.
• the hollow part of this bowl five stages of fixing the plate 7 are arranged, offset vertically with respect to each other.
• Each stage has two housings 15, in the form of hooks open at the bottom, separated from each other by a recess 16.
• These housings 15 are each intended for the engagement of a finger 10, the recess 16 between the two housings being intended to allow the passage of the extension 9 of the plate 7 carrying the two fingers 10.
• Each housing 15 has, seen in cross section, a shape of a cylindrical surface section designated by the reference 17.
• the opening of each housing has a certain characteristic, and is delimited by two surfaces respectively 18 belonging to the bottom of the bowl, and 19 belonging to a wing 20 in the form of a hook delimiting the housing 15.
• each tongue 22 is used to hold the two fingers 10 of a plate 7 in position engaged in the housings 15. During the positioning of a plate, the tongue 22 retracts, thanks to its flexibility, as shown in the figure, before returning to its normal position and preventing the fingers 10 from moving down, if only under the effect of gravity, when the bag is not in use.
• the wing 20 in the form of a hook delimiting each housing, comprises projecting from its face facing the other housing disposed at the same height, a shoulder 24 comprising, on its face facing inside the housing, a cylindrical section of surface 25 with the same radius of curvature as the shoulder 12 associated with a finger 10.
• the respective positions of the shoulders 12 and 2 are such that they are offset in the insertion position of the fingers in the housings, and that they are in contact when the plate 7 for fixing the straps 5 is oriented upwards.
• the plate in its position shown in FIG. 4, the plate being substantially perpendicular to the plane of the back of the bag. , and even slightly tilted down.
• the shoulders 12 and 24 are offset relative to each other, allowing the engagement of the fingers 10 in the two corresponding housings 15 by bending of the wing 20, under the support of the truncated surface 11 of the shoulder 12.
• the cylindrical surface sections of the shoulders 12 and 24 are in contact which prevents any play between the plate and the part 8, and also avoids any risk of separation of the wafer and the part 8.
• the fingers 10 could for example come from molding with this plate, without that we therefore go beyond the scope of the invention.

Landscapes

• Portable Outdoor Equipment (AREA)
• Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9413822

Family Applications (1)

Country Status (4)

Families Citing this family (9)

Family Cites Families (2)

• 1991
  • 1991-05-28 FR FR9107259A patent/FR2676899B1/fr not_active Expired - Fee Related
• 1992
  • 1992-05-27 JP JP4511283A patent/JPH06510441A/ja active Pending
  • 1992-05-27 EP EP19920911477 patent/EP0586491A1/de not_active Withdrawn
  • 1992-05-27 WO PCT/FR1992/000471 patent/WO1992021265A1/fr not_active Application Discontinuation

Non-Patent Citations (1)

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