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| United States Patent Application |
20060254632
|
| Kind Code
|
A1
|
|
Willis; Philip M.
|
November 16, 2006
|
Walking cane assembly
Abstract
A walking cane assembly including an elongated shaft having separable
segments connected by joint assemblies, wherein the shaft is disposable
between a collapsed position, and a elongated, substantially linear,
operative position. A stabilizing assembly is operatively structured with
one or more of the joint assemblies so as to facilitate stabilization of
the shaft in the operative position. A handle assembly is adjustably
connected to a proximal end of the shaft and is structured to facilitate
selective adjustment thereof both axially and rotationally relative to
the length of the shaft thereby allowing adjustment in the operative
length of the walking cane as well as the angular orientation of the grip
relative to the shaft. And end member is connected to the distal end of
the shaft and is structured to provide a firm, non-slipping engagement
with a supporting surface of a user of the cane assembly.
| Inventors: |
Willis; Philip M.; (Duluth, GA)
|
| Correspondence Address:
|
MALLOY & MALLOY, P.A.
Historic Coral Way
2800 S.W. Third Avenue
Miami
FL
33129
US
|
| Serial No.:
|
129565 |
| Series Code:
|
11
|
| Filed:
|
May 13, 2005 |
| Current U.S. Class: |
135/74; 135/75; 135/76; 135/82; 135/86 |
| Class at Publication: |
135/074; 135/075; 135/076; 135/086; 135/082 |
| International Class: |
A45B 9/02 20060101 A45B009/02; A45B 9/04 20060101 A45B009/04 |
Claims
1. A walking cane comprising: a.) an elongated shaft terminating in
oppositely disposed distal and proximal ends, b.) a handle assembly
moveably connected to said proximal end an including a grip, and c.) said
handle assembly selectively adjustable both axially and rotationally
relative to said shaft.
2. A walking cane assembly as recited in claim 1 wherein said handle
assembly comprises a mounting portion interconnecting said grip to said
shaft.
3. A walking cane assembly as recited in claim 2 wherein said grip is
moveable with said mounting portion relative to said shaft.
4. A walking cane assembly as recited in claim 3 wherein said grip is
moveable relative to said mounting portion.
5. A walking cane assembly as recited in claim 4 wherein said grip is
axially positionable at various distances from said distal end.
6. A walking cane assembly as recited in claim 5 wherein said grip is
rotationally connected to said mounting portion and selectively
disposable into any one of a plurality of angular orientations relative
to said shaft.
7. A walking cane assembly as recited in claim 6 wherein said grip is
threadedly connected to said mounting portion.
8. A walking cane assembly as recited in claim 2 wherein said grip is
moveable relative to said mounting portion.
9. A walking cane assembly as recited in claim 8 wherein said grip is
rotationally connected to said mounted portion and selectively disposable
into any one of a plurality of angular orientations relative to said
shaft.
10. A walking cane assembly as recited in claim 9 further comprising an
alignment assembly at least partially disposed on both said grip and said
mounting portion and cooperatively structured therewith to facilitate
selective disposition of said grip into any one of said plurality of
angular orientations.
11. A walking cane assembly as recited in claim 10 wherein said alignment
assembly comprises an alignment member disposed in interconnecting
relation with aligned portions of said grip and said mounting portion.
12. A walking cane assembly as recited in claim 11 wherein said alignment
assembly further comprises a plurality of alignment segments disposed on
said grip and said mounting portion; said alignment member disposable in
concurrently retaining engagement with aligned ones of said alignment
segments.
13. A walking cane assembly as recited in claim 12 wherein said plurality
of alignment segments comprise a plurality of recessed portions at least
one of which is formed on each of said grip and said mounting portion.
14. A walking cane assembly as recited in claim 13 wherein said alignment
member is removably disposable between said grip and said mounting
portion and at least partially within aligned ones of said recessed
portions.
15. A walking cane assembly as recited in claim 1 wherein said shaft
comprises a plurality of elongated sections disposable into and out of an
operative position, said operative position comprising said plurality of
sections disposed in coaxial relation to one another.
16. A walking cane assembly as recited in claim 15 further comprising at
least one joint assembly including two mating portions each disposed on a
different one of adjacent elongated sections, said mating portions
structured for removable mating engagement with one another when said
shaft is in said operative position.
17. A walking cane assembly as recited in claim 16 wherein each of said
mating portions include a stabilizing segment, corresponding ones of said
stabilizing segments disposable in abutting engagement with one another
when said plurality of elongated sections are in said operative position.
18. A walking cane assembly as recited in claim 17 wherein each of said
stabilizing segments are at least partially defined by an outer
peripheral portion of a corresponding one of said mating sections.
19. A walking cane assembly as recited in claim 17 wherein each of said
stabilizing segments comprise a substantially annular configuration.
20. A walking cane assembly as recited in claim 17 wherein cooperative
ones of said stabilizing segments include an outer surface cooperatively
disposed and configured for removable, mating engagement with one
another.
21. A walking cane assembly as recited in claim 16 wherein said mating
sections of each joint comprise a male section and a female section
cooperatively dimensioned and configured for removable, mating engagement
with one another.
22. A walking cane assembly as recited in claim 21 wherein said male
section comprises an elongated member having an outwardly converging
exterior surface and a cylindrical surface connected to one another along
the length of said male section.
23. A walking cane assembly as recited in claim 22 wherein each of said
male and female sections include a stabilizing segment removably disposed
in abutting engagement with another.
24. A walking cane assembly as recited in claim 1 further comprising a
surface engaging end member connected to said distal end of said shaft
and structured to facilitate non-sliding engagement with a supporting
surface.
25. A walking cane assembly as recited in claim 24 wherein said end member
comprises a base and a peripheral flange extending both radially and
axially outward from said base, said peripheral flange formed of
sufficiently flexible material to at least partially collapse upon
engagement with the supporting surface.
26. A walking cane assembly comprising: a.) an elongated shaft having
oppositely disposed distal and proximal ends, b.) a handle assembly
adjustably connected to said proximal end and including a grip and a
mounting portion c.) said handle assembly selectively adjustable both
axially and rotationally relative to said shaft, d.) at least one joint
assembly detachably connecting separable sections of said shaft, and e.)
said joint assembly including a stabilizing assembly at least partially
disposed on each of said separable sections, and f.) said stabilizing
assembly structured to stabilize a linear orientation of said shaft when
in an operative position.
27. A walking cane assembly as recited in claim 26 wherein said mating
sections of said joint assembly comprise a male portion and a female
portion each disposed on a different one of adjacent separable sections
of said shaft, said male and female portions structured for detachable,
mating engagement with one another when said shaft is in said operative
position.
28. A walking cane assembly as recited in claim 27 wherein said male
section comprises and elongated member having an outwardly converging
exterior surface and a substantially cylindrical exterior surface
connected to one another along the length of said male section.
29. A walking cane assembly as recited in claim 28 wherein said
stabilizing assembly comprises a stabilizing segment formed on each of
said male and female sections, said stabilizing segments removably
disposed in abutting engagement with one another when said shaft is in
said operative position.
30. A walking cane assembly as recited in claim 26 further comprising a
surface engaging end member connected to said distal end of said shaft
and structured to facilitate non-sliding engagement with a support
surface.
31. A walking cane assembly as recited in claim 30 wherein said end member
comprises a base and a peripheral flange disposed radially and axially
outward from said base; said peripheral flange being formed of a material
of sufficient flexibility to define a non-slipping engagement with the
supporting surface.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This invention is directed to a collapsible walking cane assembly
selectively disposable between an operative position and a collapsed
position and having an adjustable length. The angular orientation of a
hand grip relative to a remainder of the cane assembly may also be varied
and a stabilizing assembly is provided to facilitate stability of the
shaft when in the operative position.
[0003] 2. Description of the Related Art
[0004] Many individuals suffer from a lack of mobility because of age,
medical conditions or a variety of other factors. As a result, such
individuals frequently require some type of mechanical aid or device in
order to facilitate there support on or travel over the variety of
different supporting surfaces. Known mobility aiding devices which are
currently in use and readily available on the commercial market include
walker assemblies and wheel chairs. In the former category, a walker
structure allows an individual to support oneself in a stable, upright
orientation, while standing or walking.
[0005] Conventional walker assemblies also allow individuals to safely
traverse a variety of different support surfaces such as floors,
sidewalks, streets, ground surfaces, etc. As such, walker assemblies
incorporating conventional structural and operative features may include
supporting wheels, rollers, etc. When present, such wheel or equivalent
structures increase the mobility of a user, but may possibly reduce
his/her stability, especially when all of the legs of a given walker
frame include a wheel or roller structure connected thereto.
[0006] The advantages of the walker assembly of the type described above
include a generally smaller, lightweight frame which may be more easily
stored and/or transported when not in use. As such, conventional walker
assemblies may in fact be collapsible or foldable in order further
facilitate the disposition thereof within convenient or appropriate
storage areas.
[0007] As set forth above wheelchairs represent another category of
mobility aiding devices which are used by those individuals having more
significant physical limitations. An increased use of wheelchairs has
occurred in recent years, due at least in part, to an increasingly aging
population. As such, the development of the wheelchair in various forms
has progressed from the smaller, manually propelled wheelchair structures
to the heavier, larger wheelchair assemblies which are motorized. While
the more sophisticated, motorized wheelchairs have distinct advantages in
terms of facilitating mobility without requiring manual exertion, cost,
weight, maintenance, etc. are sometimes considered disadvantages.
[0008] Yet another category of mechanical mobility aides, which is perhaps
most commonly used, includes walking canes. While it is recognized that a
walking cane can be used for decorative purposes and/or as a fashion
accessory, the majority of cane structures are specifically designed to
be used as an aide to physically challenged individuals not requiring a
wheelchair or walker assembly. However, when needed, a cane assembly
should include sufficient structural integrity to allow an individual to
stand or walk over a variety of different surfaces in a safe, reliable
and stable manner.
[0009] It is well recognized that walking canes, walking sticks and like
devices have been in use for hundreds of years and as such typically
comprise a one piece elongated shaft having some type of handle or hand
gripping portion secured to one end thereof. However, recently there has
been an increased demand for a cane structure which is more structurally
versatile. For example, there is a recognized need for a walking cane
assembly to overcome any disadvantages and problems associated with known
or conventional canes, such as by being at least partially collapsible or
foldable into a reduced volume configuration. Such capabilities would
allow the storage and transport of a cane assembly more easily and/or in
a smaller area. At the same time, any structurally modified and
operationally versatile waling cane assembly should be reliably stable
and used to aide in the support or mobility of a physically challenged
individual. However, the providing of such stability should not detract
from the preferred lightweight structure of a proposed walking cane
assembly.
[0010] Other features preferably associated with a newly proposed walking
cane assembly should be the ability to easily and efficiently adjust its
overall length in order to accommodate users of various sizes. Also when
a preferred cane assembly incorporates a collapsible or foldable feature
specific structural components should be associated therewith which
serves to stabilize at least the elongated shaft portion of the cane when
being disposed and maintained in an operative, ready to use position.
SUMMARY OF THE INVENTION
[0011] The present invention is directed to a walking cane assembly having
the structural versatility to be selectively disposed between a collapsed
or folded position and an operative position. Moreover, the various
structural components of the various preferred embodiments of the cane
assembly of the present invention are cooperatively structured and
disposed to allow a certain degree of adjustability of the cane assembly.
Such adjustable features include, but are not limited to, a variance in
the length of the cane assembly and a selective positioning of a hand
grip of the handle assembly in any of a plurality of angular orientations
relative to the length or longitudinal access of the shaft. As such, the
walking cane assembly of the present invention can be quickly and easily
adjusted to accommodate users of different sizes, while also being
readily adaptable to accommodate the personal preferences or physical
demands of a user.
[0012] The selective positioning, of the cane assembly in either the
aforementioned collapsed or operative positions is accomplished by
forming the shaft portion thereof to include a plurality of elongated
sections disposed in coaxial, end-to-end relation to one another when in
the operative position. Each of the elongated sections is substantially
hollow and dimensioned to accommodate an elongated resilient material
cord, strap, band, etc, on the interior thereof. As structured, the
interior, resilient material band exerts a biasing force on the shaft
which serves to firmly maintain the elongated sections thereof in the
coaxial, aligned, operative position. However, the exterted biasing force
is such as to permit a separation of the elongated sections into a folded
or collapsed orientation, as will be explained in greater detail
hereinafter.
[0013] Reliable and stable support of a cane user, while standing or
walking, is a recognized necessity. Accordingly, the structural integrity
of a cane assembly used as mobility aid should be sufficient to withstand
forces exerted thereon, at least in the 250 pound range. Therefore, the
strength and stability of the cane assembly of the present invention is
intentionally enhanced through the provision of a stabilizing assembly.
The stabilizing assembly is directly associated and cooperatively
structured with each of a plurality of joint assemblies. Each joint
assembly is disposed and structured to removably connect the plurality of
elongated segments to one another, when the shaft is in the
aforementioned operative position. Moreover, the stabilizing assembly
comprises two mating and or abutting stabilizing segments associated with
the mating portions of each joint disposed and structured to removably
connect corresponding ends of the elongated segments of the shaft in the
operative position.
[0014] As set forth above, cooperatively disposed components of the cane
assembly are cooperatively structured to provide for selective adjustment
of both the length of the shaft and the specific angular orientation of a
handle assembly. The handle assembly includes a hand grip and an
elongated mounting portion which serves to removably connect the grip to
the proximal end of the shaft. The connection between the handle assembly
and the shaft is such as to allow the mounting assembly and the attached
grip to be adjusted along the length of the shaft adjacent to the
proximal end. In addition, the grip is removably secured to the outer
most end of the mounting portion of the handle assembly and is preferably
attached thereto by a mating, threaded connection. As such, the grip
maybe rotated relative to the mounting portion as well as the shaft, when
the mounting portion and the shaft are fixedly, but removably secured to
one another. This rotational movement facilitates a minor adjustment in
the operative length of the cane assembly by allowing the grip to rotate
towards or away from the outer most end of the mounting portion.
[0015] However the rotational, threaded interconnection between the grip
and the mounting portion may be considered even more significant by
allowing the grip to be selectively disposed in any one of a plurality of
angular orientations relative to the axis of the mounting portion, as
well as the shaft to which it is removably but fixedly attached. One
benefit of varying the angular orientation between the grip and the
mounting portion is the ability to position or orient a connection
assembly, serving to interconnect the handle assembly and the shaft, at
various, less noticeable locations relative to the grip. Personal
preferences of a user may thereby be accommodated.
[0016] Other structural and operative features of the various preferred
embodiments of the cane assembly of the present invention comprise a
surface engaging end member or "tip" which is specifically structured to
add stability to a user of the cane assembly. More specifically, the
surface engaging end or tip includes a peripheral flange made of a
material having a predetermined flexibility and protruding outwardly from
a base and or housing portion of the tip. Further, the predetermined
degree of flexibility of the peripheral flange is such as to at least
partially collapse when engaging a user supporting surface. A
non-sliding, non-slipping engagement of the surface, by the tip and the
distal end of the shaft to which it is attached is thereby accomplished,
regardless of the type or texture of the supporting surface.
[0017] Therefore, the cane assembly of the present invention overcomes
recognized disadvantages and problems associated with cane type mobility
aides conventionally known and commonly used by the elderly and/or
physically challenged individuals. Included in the various operative and
structural features of the preferred embodiments of the subject cane
assembly is the ability to selectively adjust its physical
characteristics to accommodate the size as well as other requirements of
a user. In addition, the cane assembly is capable of being selectively
disposed in either an operative position, when intended for use, or a
collapsed position, so as to assume a smaller volume for storage and/or
transport. In addition, while the cane assembly of the present invention
comprises a lightweight construction the cooperative nature of the
various components of the cane assembly provide reliable stability as
well as firm engagement with the surface over which the user of the cane
assembly is traveling.
[0018] These and other objects, features and advantages of the present
invention will become clearer when the drawings as well as the detailed
description are taken into consideration.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] For a fuller understanding of the nature of the present invention,
reference should be had to the following detailed description taken in
connection with the accompanying drawings in which:
[0020] FIG. 1 is a side view of at least one preferred embodiment of a
cane assembly of the present invention in an operative position.
[0021] FIG. 2 is detailed view in exploded form and partial cut-away of a
joint assembly associated with the elongated shaft of the cane assembly
of the embodiment in FIG. 1.
[0022] FIG. 2a is an end view taken along line 2a-2a of FIG. 2.
[0023] FIG. 2b is an end view taken along line 2b-2b of FIG. 2.
[0024] FIG. 3 is a detail view in partial cutaway of the preferred
embodiment of FIG. 1 in a collapsed or folded position.
[0025] FIG. 4 is a detail view in exploded form and partial cutaway of
associated structural and operative components of a handle assembly of a
preferred embodiment of the cane assembly of the present invention.
[0026] FIG. 4a is an end view taken along line 4a-4a of FIG. 4.
[0027] FIG. 4b is an end view taken along line 4b-4b of FIG. 4.
[0028] FIG. 5 is a detail view in perspective of an alignment member
associated with an alignment assembly connected to the handle assembly,
as represented in FIGS. 4, 4a and 4b.
[0029] FIG. 6 is an assembled view in partial cutaway representing the
alignment member of the embodiment of FIG. 5 in its intended, aligning
position relative to the handle assembly.
[0030] FIG. 7 is a sectional view of a surface engaging tip or end member
mounted on and directly associated with a distal end of the shaft of the
cane assembly of the embodiment of FIG. 1.
[0031] FIG. 8 is a bottom end view along line 8-8 of FIG. 7.
[0032] Like reference numerals refer to like parts throughout the several
views of the drawings.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0033] As shown in the accompany drawings, the present invention is
directed to a walking cane assembly generally indicated as 10 and
comprising a shaft generally indicated as 12 which is represented in FIG.
1 in its operative position. When so positioned, the shaft 12, comprises
a plurality of elongated sections 14, 15, 16, 17, etc. disposed into a
coaxial orientation. The specific number of the elongated sections 14
through 17 may vary. However, there should be at least two of such
sections to facilitate disposition of the cane assembly 10 in the
collapsed position of FIG. 3. By way of example only the preferred
embodiment of FIG. 1, comprises four elongated sections. As described in
greater detail hereinafter, the primary reference to FIGS. 2, 2a and 2b,
adjacent ones of the plurality of elongated sections 14 through 17 are
interconnected by a joint assembly 18 which facilitates the selective
disposition of the sections 14 through 17 in either the operative
position of FIG. 1 or in a collapsed, folded position of FIG. 3.
[0034] As disclosed in FIGS. 1 and 4, the walking cane assembly 10 also
includes a handle assembly generally indicated as 20. The handle assembly
20 and an associate mounting assembly 22 is cooperatively structured to
facilitate selective adjustment of the handle assembly 20 relative to the
shaft 12. As such, there may be an adjustable variance in the overall
height of the cane assembly 10, as well as a preferred angular
orientation of a grip 26, relative to the mounting portion 22 and shaft
12, when the mounting portion 22 and the shaft 12 are removably but
fixedly interconnected to one another.
[0035] With primary reference to Figures and 2, 2A and 2b, the selective
positioning of the shaft 12 between the operative position of FIG. 1 and
the collapsed or folded position of FIG. 3 is facilitated by the
structural and operative features of each of a plurality of joint
assemblies 18. The number of joint assemblies 18 will of course depend
upon the number of the plurality of elongated sections 14 through 17
which comprise the shaft 12. For purposes of clarity FIGS. 2, 2a and 2b
represent a single joint assembly 18, wherein each of the joint
assemblies 18 may include a substantially equivalent structure.
[0036] Accordingly, the one or more of the joint assemblies 18 comprise
mating portions 19 and 23 which are disposed on or connected to different
ones of corresponding ends of adjacent elongated sections, such as 14 and
15. More specifically, mating portions 19 and 23 are structured to define
male and female mating portions respectfully. As such, male mating
portion 19 includes an elongated outwardly extending mating member having
an angular, converging exterior surface 19' which can also be defined as
a frusto-conical configuration. Integrally or otherwise fixedly attached
thereto is an elongated, substantially cylindrical exterior surface 19''
extending from the convergent end of the angular surface 19' to the
extremity 25 of the male mating portion 19.
[0037] As also represented the elongated sections 14 and 15, as well as
the remaining sections 16 and 17 are at least partially hollow and
include an interior channel communicating with open end of extremity 25'.
The hollow interior of the elongated sections 14 through 17 accommodates
an elongated, flexible material cord, strap band or like biasing member
28 which serves to exert a biasing, retaining force on each of the
elongated sections 14 through 17. The biasing, retaining force provided
by the elongated elastic material member 28 is sufficient to facilitate
the retention of the elongated segments 14 through 16 in the operative
position of FIG. 1. However, the biasing force exerted on the plurality
of elongated segments 14 through 16 can be overcome by a separating,
pulling action exerted on adjacent ones of the elongated sections 14
through 16 serving to separate the joint 18 as indicated in FIG. 2 and
thereby allow the elongated sections 14 through 16 to be selectively
disposed in the folded or collapsed position of FIG. 3. While not shown
for purposes of clarity opposite ends of the biasing member 28 may be
attached or connected to the shaft 12 adjacent the opposite, proximal and
distal ends 12' and 12''.
[0038] Moreover, the joint assembly 18 includes the female mating portion
23 having an interior, angularly and inwardly converging mating surface
23' as well as a substantially cylindrical interior surface 23''.
Further, mating surfaces 23' and 23'' are dimensioned, disposed and
configured to matingly engage the outwardly converging surface 19' and
the cylindrical surface 19'' when the mating portions 19 and 23 are
brought into mating engagement with one another, as generally represented
in FIG. 1.
[0039] In order to provide reliable stability the shaft 12 when in its
operative position, particularly at the locations of the joint assemblies
18, the exterior surfaces 19, 19' and the interior surfaces 23' and 23''
are cooperatively structured the manner described. However, additional
structural features to further facilitate the stability and firm
interconnection of the plurality of elongated sections 14 through 16
comprise a stabilizing assembly directly associated with each of the
joint assemblies 18. More specifically, each stabilizing assembly 18
includes two stabilizing segments 30 and 32 each disposed on a different
one of adjacent elongated segments, such as at 14 and 15, and in direct
association with the mating male section 19 and the mating female section
23, respectively. In a most preferred embodiment, the stabilizing
segments 30 and 32 comprise annular peripheral portions disposed and
configured to assume abutting engagement with one another when the
corresponding elongated sections 14 and 15 are in the operative position,
in coaxial alignment with one another.
[0040] As should be apparent, the stabilizing segment 30 substantially
surrounds the base of the converging, angular exterior surface 19' and is
located substantially contiguous to the junction of the exterior surface
19' and the remainder of the corresponding elongated section 14. The
stabilizing segment 32, associated with the elongated section 15 and the
female mating portion 23, is located at the outer extremity of the
converging or angularly oriented interior surface 23'. As such, when the
male mating portion 19 is inserted in mating engagement within the
interior of the female mating portion 23, the stabilizing segments 30 and
32 will be disposed in abutting engagement with one another as the
adjacent segments 14 and 15 assume the coaxially aligned orientation,
which at least partially defines the operative position of the shaft 12.
[0041] With primary reference to FIGS. 1 and 4 through 4b, the handle
assembly 20, including the elongated mounting portion 22, is
cooperatively structured with at least a portion of the proximal end 12'
of the shaft 12 to facilitate longitudinal adjustment of the handle
assembly 20 relative to the remainder of the shaft 12. As such, the hand
grip 26 as well as the mounting portion 22 can be adjusted along the
length of the shaft 12 in an area adjacent to proximal end 12' and either
towards or away from the distal end 12'' and/or the surface engaging tip
or end portion 60. Therefore, the overall length of the cane assembly 10
can be easily and quickly adjusted to accommodate different sizes of the
user.
[0042] More specifically and with reference to FIG. 1, the longitudinal
adjustment of the handle assembly 20 relative to the proximal end 12' is
accomplished by an adjustable connecting assembly 38 including a
plurality of apertures 40 formed in the mounting assembly 22. The
connecting assembly 39 further comprises a spring biased finger or
button, normally biased to protrude outwardly as indicated in FIGS. 3 and
3a. Accordingly, when the proximal end 12' passes into the interior of
the mounting portion 22, the biased finger 42 may be aligned with and
extend outwardly from any of the apertures 40. As such the longitudinal
distance between the handle portion 20 and the distal end 12'' of the
shaft 12 may be adjusted or varied to shorten or lengthen the overall
longitudinal dimension of the cane assembly 10. Other features associated
with the mounting portion 22 include an externally threaded segment 43
which is designed to threadedly receive a locking cover nut 45 thereon as
also representing in FIG. 1.
[0043] With primary reference to FIG. 4 the hand grip 26 is preferably
detachable from the corresponding end of the mounting portion 22. This
removable connection may be at least partially defined by external
threads 36 disposable in mating engagement with internal threads (not
shown) formed on the interior of the corresponding end of the mounting
portion 22. This threaded connection also provides for the adjustable
rotation of the hand grip 26 and mounting portion 22 relative to one
another, such that the hand grip 26 may assume any of a plurality of
angular orientations relative to the length or central longitudinal axis
of the mounting portion 22. Additional external threads as at 37 are
provided to facilitate attachment of an internally threaded locking cover
nut or like structure 39.
[0044] Therefore and as set forth above, the hand grip 26 is movably and
removably connected to the mounting portion 22 of the handle assembly 20
and more specifically is allowed to rotate relative to the length or
central longitudinal access of the mounting portion 22. Moreover, various
features of the cane assembly 10, including its appearance, are enhanced
by allowing the handle grip 26 to be selectively disposed in any one of a
plurality of angular orientation relative to the length of the mounting
portion 22 as well as the remainder of the shaft 12, such as when the
mounting portion 22 and the shaft 12 are fixedly but removably connected
to one another in the operative position of FIG. 1.
[0045] In order to more precisely determine each of the plurality of
angular orientations in which the hand grip 26 may be disposed relative
to the length of the mounting portion 22, another preferred embodiment of
the present comprises an alignment assembly. As shown in FIGS. 4 through
4b, 5 and 6, the alignment assembly comprises an alignment member
generally indicated as 44 having an annular or ring like base 46 and an
elongated, protruding alignment finger or similar type protrusion 48. In
addition, the alignment assembly 43 comprises one or more alignment
segments 50 disposed on the hand grip 26 such as contiguous the external
threads 37. Also, one or more alignment segments 52 are disposed on the
corresponding end 22' of the mounting portion 22. In the preferred
embodiment represented in FIGS. 4 through 4b, 5 and 6, the plurality
alignment segments include at least one such segment 52 and/or recess
disposed on the hand grip 26 contiguous to the external threads 37 and a
plurality of alignment segments or recesses 52 formed on the outer
extremity 22' of the mounting portion 22. However, it is emphasized that
the reverse structure would function equally well, such as when the
external thread 37 included a plurality of such alignment segments or
recesses 50 and further therein where the extremity 22' of the mounting
portion 22 had only a single alignment segment or recess 52.
[0046] In operation, the user selects any one of a plurality of angular
orientations which the hand grip 26 is to assume relative to the mounting
portion 22 and the shaft 12. When such an angular orientation is
selected, the alignment segment 50, disposed on the hand grip 26, is
aligned with an appropriate one of the alignment segments 52 formed on
the extremity 22' of the mounting portion 20. The annular base or ring 46
is sized to be movable along the length of the exterior surface of the
mounting portion 22. As such the ring 46 is disposed adjacent to the
extremity 22' such that the protruding finger 48 extends across the
junction 51 between the hand grip 26 and the mounting portion 22 and in
interconnecting retaining relation with the aligned, alignment segments
50 and 52' as represented in FIG. 6. In at least one preferred embodiment
the alignment segments 50 and 52 are defined by channels, recesses or
like structures, the protruding finger or like protruding member 48 of
the alignment member 44 is at least partially disposed within the
recessed alignment segments 50, 52. Therefore the finger 48 will not
interfere with the threaded attachment of the cover nut 39 on the grip 26
as described above. Moreover, the protruding finger 48 is formed of a
sufficiently rigid or high strength material so as to retain the
preferred and selected angular orientation of the hand grip 26 relative
to the mounting portion 22 when the protruding finger 48 is operatively
disposed in interconnecting relation between corresponding ones of the
alignment segments 50 and 52.
[0047] Selection of a particular one of the plurality of angular
orientations in which the hand grip 26 is disposed may be based, at least
in part, upon the orientation or positioning of the connecting assembly
38 defined by the plurality of apertures 40 and the biasing finger 42
serving to interconnect the mounting portion 22 to the proximal end 12'
of the shaft 12. By way of example, a user may prefer to dispose the
connecting assembly 38 in a less obtrusive location, such as beneath the
rear portion of the handle grip 26 as at 53. In contrast, connecting
assembly 38 may also be located beneath the front portion of the hand
grip, as at 55 and thereby face outwardly from what may be considered a
front portion of the cane assembly 10. As yet another alternative, the
connecting assembly 38 may be located on either side of the hand grip 26.
A variety of other factors may also determine a preferred angular
orientation of the hand grip 26 relative to the length of the mounting
portion 20 and shaft 12.
[0048] Yet another structural feature of the present invention is
demonstrated in FIGS. 1, 7 and 8. More specifically, a surface engaging
member generally indicates as 60 preferably comprises a "tip" structure
having a housing 62 with an interior channel or recess 64 for seating and
attaching the distal end 12'' of the shaft 12. Further, the surface
engaging tip or structure 60 may include a base 66 which is disposed,
dimensioned and configured to absorb significant portion of the weight or
force exerted on the cane assembly 10, such as at least 250 pounds, as
conventionally applied. The surface engaging tip or like structure 60
also comprises a peripheral flange 68 which extends radially and to a
certain extent longitudinally outward from the base 66, as well as at
least the majority of the remainder of the housing 62. Further, the
peripheral flange 68 is formed of a material having sufficient
flexibility to "give" or at least partially collapse as the peripheral
flange engages a supporting surface 70 as generally indicated by
directional arrow 72. Accordingly, the degree of flexibility of the
peripheral flange 68 facilitates a non-slipping and/or non-sliding
contact with the support surface 70 as the cane comes into forced contact
therewith. The stability of a cane assembly 10, as well as the user,
relative to the supporting surface 70, is thereby significantly enhanced.
[0049] Since many modifications, variations and changes in detail can be
made to the described preferred embodiment of the invention, it is
intended that all matters in the foregoing description and shown in the
accompanying drawings be interpreted as illustrative and not in a
limiting sense. Thus, the scope of the invention should be determined by
the appended claims and their legal equivalents.
[0050] Now that the invention has been described,
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