U.S. patent number 3,581,961 [Application Number 04/811,974] was granted by the patent office on 1971-06-01 for adjustable pack frame assembly.
Invention is credited to Jimmie L. Owens.
United States Patent |
3,581,961 |
Owens |
June 1, 1971 |
ADJUSTABLE PACK FRAME ASSEMBLY
Abstract
This invention is a pack frame assembly adapted to be carried
upon a person's back through the use of shoulder straps and having
hip-engaging means thereon to bear on a portion of the person's
hips so as to carry the majority of the load thereagainst. More
particularly, this invention is a pack frame assembly adapted to
carry packs, sleeping rolls, or the like having hip-engaging means
which are readily adjustable so as to be readily carried by anyone
while placing the majority of the load upon one's hips through the
use of an interconnected belt member.
Inventors: |
Owens; Jimmie L. (Wichita,
KS) |
Family
ID: |
25208115 |
Appl.
No.: |
04/811,974 |
Filed: |
April 1, 1969 |
Current U.S.
Class: |
224/262;
224/263 |
Current CPC
Class: |
A45F
3/10 (20130101) |
Current International
Class: |
A45F
3/10 (20060101); A45F 3/00 (20060101); A45f
003/10 () |
Field of
Search: |
;224/8,25,25.1,9,5.24,11,12 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Forlenza; Gerald M.
Assistant Examiner: Johnson; Raymond B.
Claims
I claim:
1. A pack frame assembly adapted for mounting on the back of a
human body for carrying a load thereon, comprising:
a. a pack frame means to receive a load thereon through the use of
connecting means and having elongated spaced upright parallel
support members interconnected as by cross members, and having
strap connector members connected to the upper and lower end
portions, respectively, of said support members;
b. a shoulder strap assembly operably connectable to said support
members adapted to be placed over the shoulders of the person
carrying the same for vertical and lateral stability, said strap
assembly including a pair of strap members having adjustable means
thereon and provided with connector members at opposite end
portions readily connectable to respective ones of said strap
connector members on said support members;
c. a hip-engaging means operably connected to the pack frame means
including a backplate assembly to adjustably interconnect said
support member; vertical side members; and a belt assembly
connected to said vertical side members adapted to be placed about
the person wearing the same adjacent to and immediately above the
hip portion for carrying a substantial portion of the load on said
pack frame means thereupon; and
d. nut assemblies adjustably interconnecting said vertical side
members to said backplate assembly whereupon the lateral spacing
therebetween can be readily adjusted so as to position the same
adjacent the hip area of a person carrying the same for lateral
stability.
2. A pack frame assembly as described in claim 1, wherein:
a. said belt assembly having opposed sides connected to said
vertical side members, said connection to said vertical side member
such as to maintain said pack frame means out of engagement with
said belt assembly so that the majority of the load is carried
vertically upon said belt assembly.
3. A pack frame assembly as described in claim 2, wherein:
a. said vertical side piece members of a generally L-shape in
transverse cross section having a main body portion adjustably
connected to said backplate assembly, and a forwardly projected
V-shape attachment portion having an outer end thereof connected
through a flat-headed bolt member to said belt assembly.
4. A pack frame assembly as described in claim 1, wherein:
a. said nut assemblies having a wingnut member, each interconnected
to adjacent ones thereof by a safety lace member.
Description
It is well known in the prior art that it is advantageous in
transporting loads by means of a pack frame to relieve as much
strain as possible from the shoulders of the bearer where fatigue
is most acute so as to enable the load to be uniformly balanced or
equalized between the shoulders and also to prevent chapping of the
bearer's shoulders normally caused by taut, uneven shoulder straps.
The prior art devices normally provide most of the load-carrying
capacity to the one's shoulders which is extremely undesirable.
Also, a common fault of the prior art pack frame is that the load
is carried away from the human body to dispose the center of
gravity of the load outwardly and rearwardly from the body in a
cantilever fashion. This creates a substantial force moment as
compared to a comparable load carried close to the body and held in
place by a substantially rigid pack frame whereupon the center of
the gravity is placed near the body.
In one preferred embodiment of this invention, an adjustable pack
frame assembly is provided including a main pack frame means
adapted to receive carrier packs, sleeping bags, and the like
thereon; a shoulder strap assembly connected to the pack frame
means operable to stabilize the load and provide a certain portion
thereof to be carried by one's shoulders; and a hip-engaging means
operably connected to the pack frame means and engageable with
one's hip area for carrying a load hereon. The pack frame means
includes parallel, elongated support tube members interconnected by
spaced, cross strap members and having a plurality of connector
straps and connector rings mounted thereon operable to be readily
attached to the load such as a sleeping bag, a carrier pack, etc.
to be mounted thereon. The shoulder strap assembly includes a pair
of adjustable strap members connected to upper and lower ones of
the connector rings on the parallel support tube members. The
hip-engaging means includes a backplate assembly adjustably
connected between the support tube members; hip plate members
connected to the backplate assembly having vertical sections to be
placed in a proper position adjacent the hips of one carrying the
same; and a belt assembly secured to the vertical sections. The
pair of hip plate members are adjustably connected and extended
forwardly of the backplate assembly with the belt assembly placing
the majority of the load upon the hips of the person carrying the
same.
One object of this invention is to provide a pack frame assembly
overcoming the aforementioned disadvantages of the prior art
structures.
One further object of this invention is to provide a pack frame
assembly including a pack frame means; a shoulder strap assembly
connected to the pack frame means to provide lateral and vertical
stability; and hip-engaging means connected to the pack frame means
operable to carry the load mainly on the bearer's hip area.
Still, one other object of this invention is to provide a pack
frame assembly adapted to receive and carry various types of loads
which is economical to manufacture, simple to mount and adjust for
proper carrying characteristics, and rigid in construction.
Various other objects, advantages and features of the invention
will become apparent to those skilled in the art from the following
discussion, taken in conjunction with the accompanying drawings, in
which:
FIG. 1 is a perspective view of the pack frame assembly of this
invention illustrated as mounted upon a hiker for the conveyance
thereof;
FIG. 2 is a perspective view of the pack frame assembly of this
invention;
FIG. 3 is an enlarged fragmentary sectional view taken along lines
3-3 in FIG. 2;
FIG. 4 is a fragmentary sectional view taken along lines 4-4 in
FIG. 3;
FIG. 5 is an enlarged fragmentary sectional view taken along lines
5-5 in FIG. 3;
FIG. 6 is a fragmentary elevational view illustrating a vertical
side piece structure of the pack frame assembly of this invention;
and
FIG. 7 is a fragmentary sectional view taken along lines 7-7 in
FIG. 5.
The following is a discussion and description of preferred specific
embodiments of the new pack frame assembly of this invention, such
being made with reference to the drawings, whereupon the same
reference numerals are used to indicate the same or similar parts
and/or structure. It is to be understood that such discussion and
description is not to unduly limit the scope of the invention.
Referring to the drawings in detail and in particular to FIG. 1, a
pack frame assembly of this invention, indicated generally at 12,
is shown as attached to the back area of a hiker or camper 14 for
the ready conveyance thereof. The pack frame assembly 12 includes a
main upright pack frame means 16 to receive a pack structure 17,
sleeping roll or bag 18, and the like thereon; shoulder strap
assemblies 20 connected to the pack frame means 16 operable to be
placed over the shoulders 22 of the hiker 14; and hip-engaging
means 24 connected to the pack frame means 16 operable to be placed
against a hip area 26 of the hiker 14 as will be further described
in detail.
The pack frame means 16 includes a pair of spaced parallel support
tube members 28 and 30 interconnected at spaced intervals along its
length by cross strap members 32, 33 and 35 and having a plurality
of connector straps 37 and connector rings 38 secured to the
support tube members 28 and 30. The support tube members 28 and 30
are preferably constructed of a lightweight, noncorrosive material
such as aluminum tubing having a sufficient length to carry the
load thereon. It is obvious that the support tube members 28 and 30
may be shortened to the desired length depending on the size of the
hiker 14. The cross strap members 32, 33 and 35 are preferably
constructed of a heavy gauge canvas material operable during usage
to contact the back area of the hiker 14. At opposed upper and
lower ends of the support tube members 28 and 30 are placed the
connector rings 38. The connector straps 37 are provided for
readily mounting the various items to be carried by the pack frame
assembly 12.
The shoulder strap assembly 20 includes a pair of elongated
adjustable strap members 40 and 42, each having snap members 43
connected to opposite ends thereof. It is obvious that the strap
members 40 and 42 may be provided with buckle members (not shown)
so that the same may be adjustable in length. The snap members 43
are easily connectable to the connector rings 38 on the parallel
support tube members 28 and 30, respectively, to provide the
desired length and supporting means thereto as will become
obvious.
The hip-engaging means 24 includes a backplate assembly having a
pair of anchor plates 46 and 48 connected to respective ones of the
support tube members 28 and 30 and to each other; a pair of
vertical side or hip pieces 51 and 53 adjustably connected to the
anchor plates 46 and 48, respectively; and a belt assembly 54
connected to laterally extended portions of the vertical hip pieces
51, 53. Each of the anchor plates 46 and 48 is provided with a flat
main body 56 having a loop section 58 at one end. More
particularly, the loop sections 58 are adapted to fit about
respective ones of the support tube members 28 and 30 which are
clamped therebetween as through nut and bolt assemblies 61. It is
obvious that the anchor plates 46 and 48 can be adjusted as desired
vertically upon the respective support tube members 28 and 30. The
adjacent portions of the main bodies 56 of the anchor plates 46 and
48 are interconnected through the use of nut and bolt assemblies 61
in an overlapped relationship. Additionally, it is seen that there
is a plurality of spaced rows of holes 63 in the main bodies 56 of
the anchor plates 46 and 48 so that the spacing of the parallel
support tube members 28 and 30 can be readily adjusted for use on
various sizes of persons.
As each of the vertical side or hip pieces 51 and 53 are
substantially identical, only one need be described in detail. The
vertical side piece 51 is of a substantially L-shape in transverse
cross section having an anchor body portion 64 and an integral
outwardly projected leg portion 66. The body portion 64 is
connected to respective ones of the anchor plates 46 and 48 through
the use of a plurality of bolt and wingnut assemblies 67. It is
obvious that the bolt and wingnut assemblies 67 can be attached
through selected ones of the holes 63 within the main bodies 56 of
the anchor plates 46 and 48 so as to be in a proper laterally
adjusted position for the desired spacing between the leg portions
66. It is also seen that safety laces 69 are readily placable
through holes in wingnut members 71 and secured thereto so as to
prevent the same from rotating and resultant loosening.
It is noted that the vertical side pieces 51 and 53 have the leg
portions 66 tapered outwardly to be of substantially V-shape with
holes 75 therein to provide for weight-reducing features.
The belt assembly 54 includes a wide belt member 76 having adjacent
ends releasably connected through the use of a conventional buckle
member 77 as desired. Opposite sides of the belt member 76 are
attached to the outermost respective ends of the vertical side
pieces 51 and 53 through the use of connector assemblies 78. More
particularly, each connector assembly 78 includes a bolt member 79
through a washer 81 which, in turn, clamps the belt member 76
between the washer 81 and the respective vertical side pieces 51
and 53 with a securing nut member 83 on the other end. It is seen
that the bolt member 79 is of a flat-headed type provided with a
slot 85 therein for ease of tightening. Also, it is seen that the
use of a washer 81 and the flat-headed bolt member 79 operates to
provide a substantially continuous surface with the inner surface
of the belt member 76 so that the same does not provide discomfort
to one wearing the same.
In the use and operation of the adjustable pack frame assembly 12
of this invention, it is noted that any type of load may be placed
on the back surface of the pack frame means 16 and interconnected
thereto through the use of the connector straps 37 or any other
securing means. Next, it is obvious that the shoulder strap
assembly 20 through the adjustable strap members 40 and 42 can be
regulated so as to position the load carried upon the pack frame
assembly 12 in the proper vertical position depending upon the size
of the camper or hiker. The hip-engaging means 24 may thereupon be
adjusted so as to properly fit the person wearing the same.
In order to achieve the proper adjustment, it is seen that the
anchor plates 46 and 48 can be moved vertically on the respective
parallel support tube members 28 and 30 on loosening of the nut and
bolt assemblies 61. The proper location found is to place the side
pieces 51 and 53 adjacent to and directly over the hips of the
camper or hiker. Also, to control the lateral movement of the
entire pack frame assembly 12, the vertical side pieces 51 and 53
can be readily adjustable laterally of each other through the use
of the bolt and wingnut assemblies 67 so that the same fits in a
snug relationship on opposite sides of the hips. Thereupon, the
belt assembly 54 may be adjusted through the buckle member 77 to
provide the desired fit about the person's waist wearing the same.
It is seen that through the proper adjustment features of the pack
frame assembly 12 of this invention, substantial vertical and
lateral stability can be achieved and operable through the theory
of this invention to place the weight of the load directly over the
hips of the bearer since this is the carriage center and the
strongest part of the human body. By suspending and stabilizing the
load from the hip areas, the shoulders carry only a small
percentage of the load thus leaving the neck, shoulders, and back
more freedom allowing the bearer to walk much farther with less
fatigue.
It is seen that the pack frame assembly of this invention provides
a structure which is readily adjustable in all directions so as to
custom fit the camper or hiker bearing the same and any type of
load may be readily attached for the conveyance thereof. Also, it
is obvious that the pack frame assembly may be constructed of
numerous types of material, as for example, the support tube
members may be of magnesium, stainless steel, plastic, etc. and the
connector straps and cross straps could be constructed of material
such as plastic, fiberglass, nylon, etc. wherein the main
characteristics of these elements are the provisions of sufficient
strength, lightweight, and being noncorrosive.
It is obvious that the pack frame assembly of this invention can be
readily sold as an adapter kit so that the same can be readily
attached to existing pack frame structures. This operates to alter
the prior art structures so as to transfer the load from the
shoulders and shoulder strap members to an area over and above the
hip area so the bearer carrying the same achieves the results of
the new and novel operation of this invention.
It is seen that the pack frame assembly of this invention provides
a compact completed structure or a kit assembly which is economical
to manufacture; simple to install and adjust as required; durable
in construction; and placing the load on the hip area which allows
the bearer to carry the same with less fatigue.
While the invention has been described in conjunction with
preferred specific embodiments thereof, it will be understood that
this description is intended to illustrate the invention, which is
described by the following claims.
* * * * *