U.S. patent number 3,712,299 [Application Number 05/127,706] was granted by the patent office on 1973-01-23 for knee guard.
Invention is credited to Richard K. Voehl.
United States Patent |
3,712,299 |
Voehl |
January 23, 1973 |
KNEE GUARD
Abstract
A protective knee guard includes first and second spaced members
adapted to be secured to the tibial and femur portions of a knee
joint. The members are interconnected by elongated relatively rigid
members maintained in an arched condition by safety chains. A
plurality of guard members extend forwardly of and interconnect the
elongated members.
Inventors: |
Voehl; Richard K. (Miami,
FL) |
Family
ID: |
22431526 |
Appl.
No.: |
05/127,706 |
Filed: |
March 24, 1971 |
Current U.S.
Class: |
602/26; 2/24 |
Current CPC
Class: |
A41D
13/065 (20130101); A41D 13/0568 (20130101); A61F
13/061 (20130101) |
Current International
Class: |
A41D
13/05 (20060101); A41D 13/06 (20060101); A61F
13/06 (20060101); A61f 003/00 () |
Field of
Search: |
;128/80,165,88,87
;2/24 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Gaudet; Richard A.
Assistant Examiner: Yasko; J.
Claims
I claim:
1. A protective structure for a joint of a body limb comprising
first and second spaced band members adapted to be
circumferentially secured to a limb in generally parallel relation
at opposite ends of a body joint, a pair of elongated members
secured to said first and second spaced band members, an elongated
member being located at each side of a joint when the structure is
positioned upon a limb of a wearer, each elongated member being of
relatively rigid, integral construction and capable of being flexed
to a bowed condition with and in response to movements of a body
limb of a wearer, means secured adjacent opposed ends of each
elongated member for confining said elongated members in an arched
condition, and guard means secured to the bowed, elongated members
and extending generally normal with respect to the elongated
members and forwardly of a joint.
2. A protective structure for a joint as recited in claim 1,
wherein said protective structure comprises a knee guard and said
first and second spaced members being circumferentially secured to
the femur and the tibial portions of a knee joint,
respectively.
3. A protective structure for a joint as recited in claim 2, said
elongated members being sufficiently resilient to allow
substantially unimpeded flexibility of the knee joint of a
wearer.
4. A protective structure for a joint as recited in claim 3, said
elongated members being formed of spring steel and extending
generally longitudinally of a wearer's leg at the inner and outer
sides of a knee joint.
5. A protective structure for a joint as recited in claim 4,
wherein said means for confining said elongated members in an
arched condition includes elongated flexible members.
6. A protective structure for a joint as recited in claim 5, said
guard means comprising at least one curved guard member extending
forwardly of a knee joint and having end portions secured to said
bowed, elongated members.
7. A protective structure for a joint as recited in claim 6, and
further including a back brace secured to said elongated members
and positioned rearwardly of said guard member behind a knee
joint.
8. A protective structure for a joint as recited in claim 7,
wherein a plurality of such curved guard members are secured to
said elongated members in spaced relation, said guard members being
positioned intermediate said first and second spaced members.
9. A protective structure for a joint as recited in claim 8, and
further including an elastic covering for encompassing at least a
portion of said plurality of curved guards.
10. A protective structure for a joint as recited in claim 1,
wherein said means for confining said elongated members in an
arched condition includes elongated flexible members.
Description
BRIEF SUMMARY AND OBJECTS OF THE INVENTION
The invention relates to a novel knee guard suitable for wear by a
participant in sports events and the like.
In various sports such as football, hockey, etc., there has been a
need for a practical and effective protective structure for various
joints, particularly knee joints, where heavy body contact between
participants is involved. It has been found that during such sports
contests, the knee joint linking the femur and the tibial bones has
been highly vulnerable to injury or damage. One form of common
injury is over-extension of the knee joint caused by directly
applied impact forces to either side of the knee joint.
Briefly, this invention is directed to a novel guarding structure
adapted to protect a joint in contact sports, and includes a pair
of spaced leg straps adapted to be positioned just above and below
a joint. The straps are coupled to elongated spring steel members
provided on each side of the joint and maintained in a bowed
condition by flexible chain members. A series of guards, coupled to
the spring steel members, extends forwardly of the joints for
protection.
One of the primary objects of the invention is the provision of a
knee guard for preventing injury to a knee.
Another object of the invention is the provision of a knee guard
which is adapted to protect the joint in contact sports and which
permits complete flexibility of the knee.
A further object of the invention is the provision of a knee guard
for transmitting and distributing forces directed towards the knee
to the upper and lower leg.
An important feature of the invention is a knee guard which is
relatively simple in construction and reliable and highly effective
for its intended purpose.
Other objects and advantages of the invention will be come apparent
during the course of the following detailed description.
BRIEF DESCRIPTION OF THE FIGURES
FIG. 1 is a front elevational view of the novel knee guard
operatively positioned on a wearer's leg;
FIG. 2 is a side elevational view of the knee brace of FIG. 1;
FIG. 3 is a cross-sectional view taken along line 3--3 of FIG. 1;
and
FIG. 4 is a side elevational view of the knee guard of FIG. 1
illustrating the wearer's knee and the knee guard in its flexed
condition.
DETAILED DESCRIPTION OF THE INVENTION
Referring to the drawing, FIG. 1 shows a knee guard 10, constructed
in accordance with the principles of the present invention and
applied to the knee 12 of a wearer in open condition. However, it
is to be understood that the guard of the present invention may be
applicable for guarding elbow joints, as well. Therefore, while the
specific embodiment will be referred to as a knee guard and will be
described in conjunction with the knee joint, it is to be
understood that the device may be equally as effective for guarding
other joints such as an elbow joint.
The knee guard 10 includes generally parallel, vertically spaced
leg straps 14 and 16 which embrace and are made secure to the leg
both above and below the knee joint. Each leg strap 14, 16 is
provided with suitable separable connectors, not shown, for
fastening the knee guard about a wearer's leg or its removal
therefrom. The straps 14, 16 may be formed of various elastic,
leather, or other suitable materials with the separable connections
being adjustable so as not to unduly bind the wearer's leg and
cause stoppage of circulation.
Suitably secured to and interconnecting the leg straps 14, 16 are a
pair of elongated members 18 and 20, one member being located on
each side of the knee joint. Preferably, the elongated members 18,
20 are formed of spring steel arranged so as to give support to the
knee and yet not interfere with the movements of the wearer's leg
and the knee joint. When the knee is flexed, the spring steel bends
with the same motions as the knee. The spring steel members 18 and
20 are maintained in an arched or bowed condition, as shown by FIG.
2, which assist and augment the action of the knee joint when
running or arising. The spring steel members 18, 20 are confined in
an arched configuration by chains 22, 22. Each chain 22, which is
shorter in length than the elongated members 18, 20, has the end
portions suitably secured to the members 18 or 20 adjacent the end
portions thereof and preferably adjacent the upper and lower leg
straps 14 and 16 in such a manner as to prevent the elongated
members 18 and 20 from going over center during movement of the
leg. It is to be understood that flexible members, other than the
chains, may be utilized for maintaining the members 18, 20 bowed.
As can be observed from FIG. 1, the elongated spring steel member
20 positioned on the inside of the knee joint is relatively close
to but spaced from the knee so as not to interfere with knee and
leg movements while the spring steel member 18, on the outside of
the knee, is bowed or arched so as to be spaced a substantial
distance from the knee joint. The end portions of the members 18
and 20 contact the tibial and femur portions of the leg in the
vicinity of leg straps 14 and 16. Thus the joint is protected
against injury by sharp blows towards the knee joint since the
arched steel members 18 and 20 transmit the forces away from the
knee to the upper and lower leg. Therefore, the leg can absorb
forces that would normally do extensive damage to the knee joint.
The elongated spring steel members 18 and 20 are connected
intermediate their longitudinal lengths by a back brace 24 which
extends rearwardly of and is positioned at the back of the knee
joint. The back brace is large enough so as not to interfere with
the knee when it is completely flexed. The back brace, which is
generally rounded in cross-sectional configuration, may be formed
of various suitable materials and is conveniently secured at the
ends to the members 18 and 20.
A series of elongated guard members 26, preferably made of metal
although they may be made from other suitable materials, are
located forwardly and partially to the sides of the knee joint
having the ends thereof suitably secured to the arched spring
members 18 and 20. The guard members are curved and spaced a
substantial distance from the knee in a relaxed condition, as shown
by FIGS. 2 and 3. The guard members 26 will absorb a blow directed
to the front of the knee and transmit the blow through spring
members 18 and 20 to the femur and tibial portions of the knee
joint. The guard members 26 and spring members 18, 20 are flexible
enough to permit normal movements but rigid enough to prevent knee
injuries.
FIG. 4 discloses a slightly modified embodiment of the knee guard
wherein the curved outer guards 26 are covered at least partially
by an elastic fabric 28. The fabric is sewed at 30 between the
guards 26 and attached at the ends 32 to the upper and lower leg
straps 14 and 16.
The curved guard members 26 and the bowed, elongated members 18, 20
may be provided with padded material on the inner and/or outer
surfaces thereof.
* * * * *