FR2849997A1 - Adjustable set of straps for backpacks has elastic straps stitched to the body of the bag and free ends of shoulder straps and serving as main straps and as subsidiary straps for a buckle at the waist of the wearer - Google Patents

Abstract

Extendable elements consisting of elastic straps (1) serve as main straps and as subsidiary straps for a buckle (8, 9) at the waist of the wearer. The elastic straps are adjustable between the shoulder straps (2) and the body of the bag (3). The upper ends of the elastic straps ate stitched perpendicularly to the sides of the body of the bag and extend horizontally to the free ends of the shoulder straps. The elastic strap passes through an upper deviation element (4) which changes its direction by about 45 degrees, so that the strap passes through a lower deviation element (5). The extendable strap (1) is provided with a Velcro male strip (6) and a Velcro female strip (7), such that the two strips can be joined together.

Description

The present invention relates to an adjustable strap device and

scalable

  for backpacks and other accessories, intended to improve ergonomics and user comfort which still need to be improved in this area.

  The device according to the invention makes it possible to meet this need, it indeed comprises s according to a first characteristic of the extendable elements: the elastic straps, associated with shoulder straps serving both as main and auxiliary shoulder straps.

  These extendable elements allow the wearer of the bag, in addition to their flexibility and ease of adjustment, to benefit from a secondary buckling at the waist, which provides better grip of the accessory in case of need and eliminates the excess. of straps.

  According to a second characteristic, special arrangements are necessary for the proper functioning of the belts, this is why the bag has certain specific parts allowing satisfactory development of these.

  According to particular embodiments: The volume and the shape of the bag or of the accessory can vary considerably, which does not change the organization of the device.

  The device can therefore be applied to all types of backpacks and accessories.

  The belts can be conventional (without elastic property) or be retractable, that is to say associated with winding mechanisms.

  The accompanying drawings illustrate the invention: Figure 1 shows the bag, the various components of which are highlighted.

  Figures 2; 3; 4; 5; 6 represent the bag in situation, that is to say carried by a mannequin, which makes it possible to understand its functioning and the gesture being associated therewith.

  Figure 7 shows the bag at the same angle as Figure 1, but with a cutaway to illustrate another embodiment. 30 With reference to these drawings, the device comprises extendable elements which act both as components of the main shoulder straps and as annexed straps for buckling at the waist, these are the elastic belts (1), (fig. 1 ). These elastic belts (1) come to play between the straps (2) (which are the traditional elements of connection with the top of the bag resting on the shoulders) and the body of the bag (3), (fig. 1). The upper ends of the elastic belts are sewn perpendicular to the sides of the bag body (3) and therefore develop horizontally up to the free ends of the shoulder straps (2) where they are captured and channeled by connecting pieces called 5 high deflection pieces. (4), (fig. 1). These high deflection pieces (4), fixed to the free ends of the shoulder straps (2) are in a way rigid loops, whose role is comparable to that of pulleys. In fact, they deflect the course of the elastic belts (1) causing them to change direction, at an angle of plus or minus forty five degrees, thereby orienting them towards the lower sides of the body of the bag (3), (fig. 1) . Arrived at the level of the lower sides of the body of the bags (3) the elastic belts (1) are again captured by connecting pieces, called low deflection pieces (5), (fig. 1). Fixed on the bottom sides of the bag (3), the low deflection pieces (5) are similar to the high deflection pieces (4) and fulfill the same role. The portions of elastic belts (1) playing between the top (4) and bottom (5) deflection pieces are provided with strips of velcro (registered trademark) male parts (6) sewn on their external faces, (fig. 1) . The Velcro strips (registered trademark) complementary female parts (7) are located and sewn on the same faces of the elastic belts (1), but on the portions beyond the low deflection pieces (5), (fig. 1) . The reversal of the elastic belts (1) on themselves by means of the low deflection pieces (5) makes it possible to associate the male (6) and female (7) velcro bands (registered trademark) and therefore the portions of belts. elastic (1) concerned, (fig. 2). The association and positioning of these velcro strips (registered trademark) is done so as to determine the length of the elastic belts (1) desired and therefore the appropriate tightening. The free ends of the elastic belts (1) are provided with any quick-release system: male buckle (8) for the right and 25 female buckle (9) for the left, (fig. 1). In addition to their role of attaching elastic belts (1), the male and female loops prevent these from coming out of the low deflection pieces (5).

  Another rapid fastening system completes the device at chest level, it is intended to secure the two straps (2) which will tend to move apart under the action of the elastic belts (1). This device called breast bar, located at the same level as the high deflection pieces (4) but inside the straps (2), has a male part (10) fixed to the right strap (2) and a female part. (11) attached to the left strap (2), (fig. 1).

  As was mentioned in the preamble and according to another embodiment, the elastic belts (1) can be replaced by conventional belts (without elastic property) or according to a last embodiment by retractable belts (12), it ie belts tensioned by means of spring reels (13) housed in the sides of the bag, (fig. 7).

  Thanks to its system of straps, the bag can adapt quickly and very flexibly to all types of morphology, it suffices for its wearer to unclip the Velcro bands (registered trademark) male (6) and female ( 7) of each elastic belt 10 (1) or of retractable belts (12), (fig.3) and of positioning them according to the desired length. This setting may also be based on user preferences and therefore be more or less firm. If the carrier of the bag wishes to benefit from a very good support it is enough for him in the same way to dissociate the velcro bands (registered trademark) male (6) and female (7) part of each elastic strap (1) or retractable straps (12) and 15 to associate their male (8) and female (9) buckles with any quick-fastening system, which gives it effective belting at the waist (fig. 4; 5; 6) . In all cases the excess strap is eliminated while the ergonomics are considerably improved.

Claims (10)

  1) Device of adjustable and scalable shoulder straps for backpacks and other accessories, characterized in that it comprises extendable elements which act both as 5 components of the main shoulder straps and of annexed straps for buckling at the waist : elastic belts (1), (fig. 1).   2) Device according to claim 1, characterized in that these elastic belts (1) come to play between the straps (2) and the body of the bag (3), (fig. 1). 10 3) Device according to claim 2, characterized in that the upper ends of the elastic belts (1) are sewn perpendicular to the sides of the bag body (3) and therefore develop horizontally up to the free ends of the straps (2), ( fig. 1).   4) Device according to claim 3, characterized in that the elastic belts (2) are captured and channeled by connecting pieces, called high deflection pieces (4), fixed to the free ends of the straps (2), (fig. 1).   5) Device according to claim 4, characterized in that the high deflection pieces (4) inflect the course of the elastic belts (1) by making them change direction, at an angle of plus or minus forty five degrees and thus orienting them towards the lower sides of the bag body (3), (fig. 1).   6) Device according to claim 5, characterized in that arrived at the bottom sides of the bag body (3), the elastic belts (1) are again captured by connecting pieces, called low deflection pieces (5 ), (fig. 1).   7) Device according to claim 6, characterized in that the low deflection pieces 30 (5) fixed on the bottom sides of the bag (3) are similar to the high deflection pieces (4) and fulfill the same role, (fig. 1).   8) Device according to any one of claims 1 to 7, characterized in that the portions of the elastic belts (1) located between the high (4) and low (5) deflection pieces are provided with velcro strips (registered trademark) male parts (6), sewn on their outside faces, (fig. 1).   9) Device according to claim 8, characterized in that the velcro bands (trademark 5 registered) female part (7) complementary, are located and sewn on the same faces of the elastic belts (1), but on the portions beyond the low deflection pieces (5), which makes it possible to associate these portions of the elastic belts with those included between the high (4) and low (5) deviation pieces (fig. 1; 2).   10) Device according to any one of claims 1 to 9, characterized in that the free ends of the elastic belts (1) are provided with any rapid fastening system, male loop (8) for the right and female (9 ) for the left, (fig. 1).   1 1) Device according to any one of claims 1 to 10, characterized in that another 15 any rapid fastening system completes this device, located at the same level as the high deflection pieces (4), but at the inside the straps (2), it has a male part (10) fixed to the right strap (2) and a female part (11) fixed to the left strap (2), (fig. 1).