Field
[0001] The invention concerns a carriage system for carrying burdens by a person in particular
at back side, however also at chest side. In particular, however not exclusively,
it concerns a carriage system for military personnel.
Background
[0002] Present rucksacks comprise a carriage system with shoulder and hip straps. For the
stability the shoulder straps are tightened and in this way the burden, e.g. comprising
ballistic protection plates, ammunition, radio etc., is mainly carried by the shoulders.
[0003] The following problems occur at the present carriage systems:
- An essential part of the burden is carried by the person's shoulders, resulting in
discomfort and reduced performance.
- Combination of the carriage system and ballistic protection is so stiff that the upper
part of the body cannot move sufficiently.
- Military actions with heavily burdened shoulders is difficult.
Summary
[0004] The inventions aims to provide a system for carrying burdens by a person, in which
the burden - at back and front side - essentially leans on the hips and in which the
upper part of the body remains its mobility.
[0005] To that end the inventions provides a carriage system for the carriage of burdens
by a person, comprising a torso module which is arranged to enclose, at least partly,
the person's upper back and/or chest and to enable to attach one or more objects to
be carried by the person, the carriage system, moreover, comprising a support module
which is at its upperside connected with the torso module and which is at its underside
arranged to found upon the person's hips when the person is standing, walking or marching
in upright position. In this way the person's back and shoulders are relieved substantially
by means of the support module.
[0006] The support module preferably comprises a hip module, arranged to enclose, at least
partly, the person's hips, enabling that the support module rests well positioned
at the person's hips. The support module is preferably arranged that the length between
its upperside and its underside is variable, starting from a minimum length e.g. having
a value at which in the person's upright position the torso module, via the support
module, founds upon the person's hips.
[0007] In an advantageous embodiment the support module comprises a support element, essentially
at the person's back side, and a more or less forked hip element, extending from the
underside of the support element towards the person's hips, the fork ends preferably
being more or less pivotably connected with said hip module. As will be clear from
the figures to be discussed below, in this embodiment the burden exercised upon the
torso module by e.g. a marching kit, ammunition, radio devices etc. is, when the person
is marching, walking or standing upright, deflected from the person's shoulders towards
the person's hips, more or less bypassing the person's vertebral column. When, however,
the person bends headfirst, e.g. during a run or when climbing over obstacles etc.,
the support module is able to elongate while the burden largely will rest on the person's
back. After the person returns into upright position the support module will return
into its default position, adopting again its minimum ("block") length, viz. the length
at which the torso module incl. the attached burden founds upon the person's hips
via the support module.
[0008] Preferably, the support module is laterally, axially, and/or longitudinally flexible
in some degree. When, however, a heavy burden has to be carried it is advantageous
to adjust (viz. to reduce) the support module's flexibility. For very heavy burdens
it may be preferred - to increase the complete system's stability - to lock the flexibility,
in other words to make the support module as stiff as possible. For this reason the
carriage system preferably comprises means which are arranged to enable to the relevant
person to set the degree of flexibility/stiffness of the support module, viz. to a
degree which the person experiences as optimal.
Exemplary embodiment
[0009] Figure 1 shows a rather schematic side-view of a preferred embodiment of the invention.
[0010] Figure 2 shows the preferred embodiment more in detail in the form of an 'exploded
view'.
[0011] Figure 3 shows the preferred embodiment in 3D shape.
[0012] Figure 1 shows a system for the carriage of a burden by a person 1, comprising a
torso module 2 (= 2a-d), enclosing (partly) the person's upper back and chest and
to enable to attach burdens (B) to be carried by the person. The system, moreover,
comprises a support module 3 (= 3a-d) which is at its upperside connected with the
torso module 2 and which is at its underside arranged to found upon the person's hips
in the person's upright position. In the preferred embodiment as shown in the figures
the support module comprises a hip module 3a which encloses the person's hips.
[0013] The support module 3 is arranged that the length between its upperside and its underside
is variable, starting from a minimum ("block") length, having a value at which in
the person's upright position the torso module 2, via the support module 3, founds
upon the person's hips. The support module comprises a support element 3b/c at the
person's back side, and a forked hip element 3d, extending from the underside of the
support element 3b/c towards the person's hips, the fork ends being swivelingly (or
pivotably) connected with said hip module 3a.
[0014] The support module is laterally, axially and possibly longitudinally flexible and
preferably comprises means which are arranged to enable to the person to set the degree
of flexibility/stiffness of the support module 3, which will be explained more in
detail below.
[0015] Pointing now to figures 2 and 3, torso module 2 encloses the person's upper back
and chest by means of a back element 2a, a shoulder element 2b - via an interconnection
element 2b' - is connected to two side elements 2c, which at front side can be interconnected
via an (possibly armoured) chest element (not shown) to which (additional) burdens
may be attached. The back element 2a is provided with means to attach the (main) burdens
B which have to be carried.
[0016] In figures 2 and 3 the support element 3 is constituted by two support swivels 3b
and 3c, which are interconnected by means of a flexible rod 3e, extending through
the swivels 3b and 3c as well as through a swivel 2d provided at the back element
2a and a swivel 3f provided at the forked hip element 3d. The flexible rod 3e is fixed
to the upperside of swivel 2d and to the underside of swivel 3f.
[0017] It is noted that in practice the number and/or dimensions of the swivels (3b and
3c in the exemplary embodiment of figures 2 and 3), as well as the length of rod 3e
may be adapted to the relevant person's (back) length.
[0018] The forks of hip element 3d extend towards the person's hips those ends being swivelingly
- around pivots 3g - connected to the hip module 3a. The hip module 3a and the extensions
of hip element 3d are constructed so that the extensions are blocked - e.g. by a eccentric
cam (not shown) upon the exterior of the hip module 3a - to a fixed bottom position.
By means of this construction the length between the upperside and underside of the
support module 3 - i.e. the distance between the upperside of rod 3e and the pivots
3g - is, starting at said minimum ("block") length, variable. When the person bends
headfirst e.g. during a run or when climbing over obstacles etc., the support module
elongates due to rotation of the hip element extensions, pivoting around the pivots
3g.
[0019] The support module 3 is laterally and axially flexible due to the rounded shape of
the surfaces of the adjacent swivels 2d, 3b, 3c, 3f together with the interconnecting
rod 3e, which can, besides, also be longitudinally flexible (elastic) to some extend.
Although rod 3e is flexible, the flexibility of the whole - the rod and the swivels
- not only depends on the flexibility of rod 3e but also on its tensile tension: the
higher the tensile tension, the higher the stiffness of the support element. This
effect, of course depends on the exact shape of the swivel surfaces: when e.g. the
centre of the rounded surface of the swivels comprises a rather flat area, the stiffness
of the support member will increase substantially when the longitudinal rod tension
is increased. Although not shown in the figures, any person skilled in the art can
imaging that the rod tension could be adjusted by the person using the carriage system
as outlined above, by means of e.g. a kind of winged nut, screwed on one end of the
(tie) rod 3e and thus enabling the person to set the degree of flexibility/stiffness
of the support module 3.
1. Carriage system for the carriage of burdens (B) by a person (1), comprising a torso
module (2) which is arranged to enclose, at least partly, the person's upper back
and/or chest and to enable to attach of one or more objects to be carried by the person,
the carriage system, moreover, comprising a support module (3) which is at its upperside
connected with the torso module and which is at its underside arranged to found upon
the person's hips in the person's upright position.
2. Carriage system according to claim 1, said support module comprising a hip module
(3a), arranged to enclose, at least partly, the person's hips.
3. Carriage system according to claim 2, said support module being arranged that the
length between its upperside and its underside is variable, starting from a minimum
length.
4. Carriage system according to claim 3, the support module being arranged that said
minimum length has a value at which in the person's upright position the torso module
(2), via the support module (3), founds upon the person's hips.
5. Carriage system according to claim 2, the support module comprising a support element
(3b-c) essentially at the person's back side, and a forked hip element (3d), extending
from the underside of the support element towards the person's hips, the fork ends
being swivelingly (3g) connected with said hip module.
6. Carriage system according to claim 1, said support module being flexible.
7. Carriage system according to claim 6, comprising means which are arranged to enable
to the relevant person to set the degree of flexibility/stiffness of the support module.