U.S. patent application number 16/470665 was filed with the patent office on 2021-10-28 for anti-slide shoe.
The applicant listed for this patent is Grip Force Technologies AB. Invention is credited to Lars NILSSON.
Application Number | 20210330038 16/470665 |
Document ID | / |
Family ID | 1000005753555 |
Filed Date | 2021-10-28 |
United States Patent
Application |
20210330038 |
Kind Code |
A1 |
NILSSON; Lars |
October 28, 2021 |
ANTI-SLIDE SHOE
Abstract
The invention relates to a sole arrangement (10) for an
anti-slid shoe (1). Said sole arrangement (10) comprises an upper
and a lower sole member (20, 50) wherein the lower sole member (50)
is vertically movable in relation to the upper sole member (20).
Spike holding units (15) are arranged at the upper sole member (20)
and are configured to hold spike members (8) extending in a
vertical direction inside the sole arrangement (10). The sole
arrangement (10) further comprises a locking system comprising
spacing means (12) and a movable locking plate (30) arranged
between the upper and lower sole members (20, 50), configured to
control the vertical distance between the sole members (20, 50) to
prevent the spike member (8) from protruding through the lower sole
member (50). The spike holding unit (15) extends downwards through
an opening (17) in the locking plate towards a spike opening (16)
in the lower sole member (20).
Inventors: |
NILSSON; Lars;
(Munka-Ljungby, SE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Grip Force Technologies AB |
Vaestra Froelunda |
|
SE |
|
|
Family ID: |
1000005753555 |
Appl. No.: |
16/470665 |
Filed: |
December 20, 2017 |
PCT Filed: |
December 20, 2017 |
PCT NO: |
PCT/SE2017/051310 |
371 Date: |
June 18, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A43C 15/14 20130101;
A43C 15/02 20130101 |
International
Class: |
A43C 15/14 20060101
A43C015/14; A43C 15/02 20060101 A43C015/02 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 27, 2016 |
SE |
1651743-5 |
Claims
1. Sole arrangement (10) for an anti-slid shoe (1), said sole
arrangement comprising an upper and a lower sole member (20, 50)
wherein the lower sole member (50) is positioned closer to the
ground during normal use of the sole arrangement and may form an
outer sole of the shoe (1), wherein the lower sole member (50) is
movably arranged in relation to the upper sole member (20) allowing
the lower sole member (50) to move in a vertical direction in
relation to the upper sole member (20), at least one spike holding
unit (15) configured to hold a spike member (8) in such a way that
the spike member (8) extends in a substantially vertical direction
inside the sole arrangement (10) and is movable in relation to the
lower sole member (50), at least one spike opening (16) in the
lower sole member (50) allowing a spike member (8) arranged in the
spike holding unit (15) to protrude downwards through the lower
sole member (50), a locking system comprising spacing means (12)
and a movable locking plate (30) arranged between the upper and
lower sole members (20, 50), said locking system being configured
to control the vertical distance between the upper and lower sole
members (20, 50) so as to, when set in a locked mode, prevent the
spike member (8) from protruding through the lower sole member
(50), characterized in that the spike holding unit (15) is arranged
at the upper sole member (20), wherein the spike holding unit (15)
extends downwards through an opening (17) in the locking plate or
at a side thereof towards the spike opening (16).
2. Sole arrangement according to claim 1, wherein the spike holding
unit (15) is provided with attachment means (22) allowing a spike
to be detachably attached to the spike holding unit.
3. Sole arrangement according to claim 1, wherein the locking plate
is fixed in a vertical direction in relation to the upper sole
member, preferably the locking plate is attached to upper sole
member.
4. Sole arrangement according to claim 1, wherein the spike holding
unit (15) is fixed to an underside of the upper sole member (20),
preferably the spike holding unit (15) forms an integrated part of
the upper sole member (20).
5. Sole arrangement according to claim 1, wherein the lower sole
member (50) comprises a flexible membrane (4), wherein the spike
opening (16) is arranged in the membrane (4).
6. Sole arrangement according to claim 1, wherein the spacing means
(12) are arranged between the locking plate (30) and the lower sole
member (50).
7. Sole arrangement according to claim 1, wherein a spike member
(8) is attached to the spike holding unit (15).
8. Sole arrangement according to claim 1, wherein the spike holding
unit (15) comprises an inner element (19) provided with threads
(22) for connection to corresponding threads of the spike member
(8).
9. Sole arrangement according to claim 1, wherein the upper sole
member (20) comprises an upper part (20a) and a lower part (20b),
wherein the lower part is made of a more rigid material than the
upper part, wherein the two parts are moulded together.
10. Sole arrangement according to claim 9, wherein the spike
holding unit (15) forms an integral part of the lower part (20b) of
the upper sole member (20).
11. Sole arrangement according to claim 1, wherein the locking
plate (30) is movable in a longitudinal direction of the sole
arrangement between at least a first and a second position, wherein
the spacing means (12) defines a minimum distance between the upper
and lower sole members (20, 50) in one of these positions.
12. Sole arrangement according to claim 1, wherein the upper sole
member (20) is provided with at least one connection element (3a,
13a) and wherein the lower sole member (50) is provided with a
corresponding connection element (3b,13b) configured to be
connected with the connection element on the upper sole member to
provide a stabilizing connection between the two sole members.
13. Shoe (1) comprising a sole arrangement (10) according to claim
1.
14. Spike member (8) for an anti-slid shoe (1), said spike member
(8) comprising a gripping spike (6), a threaded attachment part
(18) for attachment to the shoe (1) and a washer/plate (9) arranged
between the gripping part (6) and the attachment part (18) for
providing sealing around a spike opening (16) of the shoe (1).
15. Spike member (8) according to claim 14, wherein the threaded
attachment part 18 and the washer/plate (9) form an integral unit
provided with an axial hole configured to receive an end portion of
the gripping part spike (6).
Description
TECHNICAL FIELD
[0001] The invention relates to a sole arrangement with retractable
spikes for an anti-slid shoe.
BACKGROUND ART
[0002] Anti-slid shoes with retractable spikes are known as such.
WO2007/037731 and WO2009/110822 disclose a particular variant where
an upper and a lower sole are vertically moveable in relation to
each other allowing the spikes to protrude through the lower sole
and where a slidable locking plate is used to lock the soles in
relation to each other so as to prevent the spikes from
protruding.
[0003] Although the principle of the shoes disclosed in these
documents is promising there is a need for improvements, for
instance with regard to stability of the sole arrangement and the
capability to prevent leakage.
SUMMARY OF THE INVENTION
[0004] The invention relates to a sole arrangement for an anti-slid
shoe, said sole arrangement comprising [0005] an upper and a lower
sole member wherein the lower sole member is positioned closer to
the ground during normal use of the sole arrangement and may form
an outer sole of the shoe, wherein the lower sole member is movably
arranged in relation to the upper sole member allowing the lower
sole member to move in a vertical direction in relation to the
upper sole member, [0006] at least one spike holding unit
configured to hold a spike member in such a way that the spike
member extends in a substantially vertical direction inside the
sole arrangement and is movable in relation to the lower sole
member, [0007] at least one spike opening in the lower sole member
allowing a spike member arranged in the spike holding unit to
protrude downwards through the lower sole member, [0008] a locking
system comprising spacing means and a movable locking plate
arranged between the upper and lower sole members, said locking
system being configured to control the vertical distance between
the upper and lower sole members so as to, when set in a locked
mode, prevent the spike member from protruding through the lower
sole member.
[0009] The invention is characterized in that the spike holding
unit is arranged at the upper sole member, wherein the spike
holding unit extends downwards through an opening in the locking
plate or at a side thereof towards the spike opening.
[0010] This provides for the possibility to attach a spike member
to the spike holding unit from an outside (underside) of the lower
sole member, i.e. through the outer sole of shoe into the spike
holding unit. In turn this simplifies sealing of the spike compared
to e.g. WO2007/037731 in that a spike sealing member can press onto
the underside of the lower sole member/outer sole. This arrangement
also enables an enhanced stability of the structure as the upper
and lower sole members can be connected via the spike holding unit,
and via the spike member.
[0011] In an embodiment of the invention the spike holding unit is
provided with attachment means allowing a spike to be detachably
attached to the spike holding unit. This provides for the
possibility to replace broken or worn out spikes.
[0012] In an embodiment of the invention the locking plate is fixed
in a vertical direction in relation to the upper sole member,
preferably the locking plate is attached to upper sole member.
[0013] In an embodiment of the invention the spike holding unit is
fixed to an underside of the upper sole member, preferably the
spike holding unit forms an integrated part of the upper sole
member.
[0014] In an embodiment of the invention the lower sole member
comprises a flexible membrane, wherein the spike opening is
arranged in the membrane.
[0015] In an embodiment of the invention the spacing means are
arranged between the locking plate and the lower sole member.
[0016] In an embodiment of the invention a spike member is attached
to the spike holding unit.
[0017] In an embodiment of the invention the spike holding unit
comprises an inner element provided with threads for connection to
corresponding threads of the spike member.
[0018] In an embodiment of the invention the upper sole member
comprises an upper part and a lower part, wherein the lower part is
made of a more rigid material than the upper part, wherein the two
parts are moulded together.
[0019] In an embodiment of the invention the spike holding unit
forms an integral part of the lower part of the upper sole
member.
[0020] In an embodiment of the invention the locking plate is
movable in a longitudinal direction of the sole arrangement between
at least a first and a second position, wherein the spacing means
defines a minimum distance between the upper and lower sole members
in one of these positions.
[0021] In an embodiment of the invention the upper sole member is
provided with at least one connection element and wherein the lower
sole member is provided with a corresponding connection element
configured to be connected with the connection element on the upper
sole member to provide a stabilizing connection between the two
sole members.
[0022] The invention also concerns a shoe provided with a sole
arrangement of the above type.
[0023] The invention also concerns a spike member for an anti-slid
shoe, wherein the spike member comprises a gripping spike, a
threaded attachment part for attachment to the shoe and a
washer/plate arranged between the gripping part and the attachment
part for providing sealing around a spike opening of the shoe.
[0024] In an embodiment, the threaded attachment part and the
washer/plate form an integral unit provided with an axial hole into
configured to receive an end portion of the gripping part
spike.
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] FIG. 1 shows an anti-slid shoe according to an embodiment of
the invention.
[0026] FIG. 2 shows, in an exploded view, a sole arrangement of the
shoe according to FIG. 1.
[0027] FIG. 3 shows a sectional view of an assembled sole
arrangement according to FIG. 2.
[0028] FIG. 4 shows a spike member and a part of a spike holding
unit according to the sole arrangement.
DETAILED DESCRIPTION
[0029] FIG. 1 shows an anti-slid shoe 1 according to an embodiment
of the invention. FIG. 1 also shows parts of an upper sole member
20 connected via resilient bellows 7 to a lower sole member 50, and
a handle 11 for controlling the position of a locking plate 30 (not
shown in FIG. 1).
[0030] FIG. 2 shows, in an exploded view, a sole arrangement 10 of
the shoe 1 according to FIG. 1.
[0031] FIG. 3 shows a sectional view of an assembled sole
arrangement 10 according to FIG. 2.
[0032] FIG. 4 shows a spike member 8 and an inner part 19 of a
spike holding unit 15 according to the sole arrangement 10.
[0033] The sole arrangement 10 comprises in general an upper sole
member 20, a locking plate 30 and a lower sole member 50. The lower
sole member 50 is positioned closer to the ground during normal use
of the shoe 1 and forms an outer sole of the shoe 1. The lower sole
member 50 is movably arranged in relation to the upper sole member
20 allowing the lower sole member (50) to move in a vertical
direction in relation to the upper sole member (20).
[0034] The upper sole member 20 comprises two major parts: an upper
sole part 20a in this example made of thermoplastic polyurethane
(TPU) and a lower sole part 20b made of a more rigid material, in
this case polyoxymethylene (POM, also known as acetal). The upper
and lower parts 20a, 20b form an integral part produced by placing
the lower part 20b in the mould when producing/moulding the upper
part 20a. Although the lower part 20b is more rigid it is designed
to be sufficiently flexible to be bent and to provide for a
comfortable sole member for a user of the shoe 1.
[0035] The underside of the upper sole member 20 is provided with a
plurality of downwardly extending spike holding units 15. These
units 15 form integral parts of the lower part 20b of the upper
sole member 20. The spike holding units 15 comprises an inner unit
19 that is moulded in place inside detail 15 and that is provided
with threads 22 corresponding to outer threads 18 provided onto an
upper part of a spike member 8 (see FIGS. 3-4).
[0036] Each spike holding unit 15, 19 is configured to hold the
spike member 8 in such a way that the spike member 8 extends in a
substantially vertical direction inside the sole arrangement 10 and
is movable in relation to the lower sole member 50.
[0037] Spike openings 16 are arranged in the lower sole member 50
allowing a corresponding spike member 8 arranged in the spike
holding unit 15, 19 to protrude downwards through the lower sole
member 50 (see FIG. 3). Each spike opening 16 is arranged in a
corresponding flexible membrane 4 arranged in the lower sole member
50.
[0038] Also the lower sole member 50 comprises two major parts: an
upper sole part 50a made of a more rigid material, in this case
polyamide (PA), and a lower sole part 50b made of TPU. The upper
and lower parts 50a, 50b of the lower sole member 50 form an
integral part produced by placing the upper part 50a in the mould
when producing/moulding the lower part 50b. Although the upper part
50a of the lower sole member 50 is more rigid it is designed to be
sufficiently flexible to be bent and to provide for a comfortable
sole member for a user of the shoe 1.
[0039] The flexible membranes 4 form part of the more flexible
lower part 50b of the lower sole member 50.
[0040] Upper part 50a of lower sole member 50 is provided with
holes 9 adapted to surround the flexible membrane 4.
[0041] The sole arrangement 10 further comprises a locking system
comprising spacing means 12 and the movable locking plate 30
arranged between the upper and lower sole members 20, 50. The
locking plate 30 is attached to the upper sole member 20 by means
of screws (not shown in figures) arranged in longitudinally
extending openings (not shown in the figures) in the locking plate
30 to allow the locking plate 30 to move back and forth in the
longitudinal direction of the shoe 1.
[0042] The spacing means 12 are arranged both on the lower side of
the locking plate 30 and on the upper side of the lower sole member
50, more specifically on the upper side of the upper part 50a of
the lower sole member 50, so as to face each other.
[0043] The locking system is configured to control the vertical
distance between the upper and lower sole members 20, 50 so as to,
when set in a locked mode, prevent the spike members 8 from
protruding through the lower sole member 50. The principle for how
the locking system works is similar to what is described in
WO2007/037731 and WO2009/110822: The locking plate 30 can be moved,
using the handle 11, between a first and a second longitudinal
position. In one of these positions the upper and lower spacing
means 12 are arranged at least partly on top of each other (which
alternatively may be seen such as a certain spacing means and its
corresponding spacing means receiving opening on the corresponding
sole member are at least partly displaced in relation to each
other) so that the spacing means 12 define a minimum distance
between the locking plate 30 (and thus the upper sole member 20)
and the lower sole member 50. In this position the spike member 8
is prevented from protruding out downwards from the lower sole
member 50. In the other position of the locking plate 30 the upper
and lower spacing means 12 are longitudinally displaced in relation
to each other (which alternatively may be seen such as a certain
spacing means and its corresponding spacing means receiving opening
on the corresponding sole member are aligned with each other) so
that, when the upper sole member 20 is pressed downwards towards
the lower sole member 50 by, for instance, the weight of a user of
the shoe, the upper and lower sole members 20, 50 come closer to
each other than the minimum distance with the corresponding spacing
means 12 positioned more or less side by side (or with one of the
spacing means positioned in the corresponding spacing means
opening). In this position the spike member 8 is allowed to
protrude downwards from the lower sole member 50. This position of
the locking plate 30 is depicted in FIG. 3.
[0044] The locking plate 30 is made of a rather rigid material such
as polyamide (PA) (but is designed to be bendable to allow the sole
arrangement 10 to bend during use of the shoe 1). The spacing means
12 form integral parts of either the locking plate 30 or the upper
part 50a of the lower sole member 50 which also is made of a more
rigid material. Thus the spacing means act distinctly onto each
other when forming the minimum distance. Also the lower part 20b of
the upper sole member 20 is made of a more rigid material which has
the advantage that the friction between the locking plate 30 and
the upper sole member 20 is low when moving the locking plate 30
between the two longitudinal positions.
[0045] The spacing means 12 include transversal bars and a system
of smaller parts distributed over a larger area (see part 50a in
FIG. 2). An advantage of distributing the spacing means 12 over a
larger area is that the pressure onto the sole of the foot of a
user also becomes distributed over a larger area which reduces the
risk of discomfort.
[0046] Each spike holding unit 15 is arranged at the upper sole
member 20 and extends downwards through an opening 17 in the
locking plate or at a side thereof towards the spike opening 16
arranged in the membrane 4.
[0047] As shown in FIG. 3 the spike member 8 is connected to the
spike holding member 15, 19 via the spike opening 16, wherein the
membrane 4 is used as a sealer.
[0048] The upper and lower sole members 20, 50 are also connected
via two pairs of connection elements 3a, 3b and 13a, 13b. The front
pair 13a, 13b is arranged in front of the locking plate 30. The
more centrally positioned pair 3a, 3b connects to each other via a
longitudinally elongated opening (not clearly shown in FIG. 2) in
the locking plate 30 (to allow longitudinal movement of the locking
plate 30). The upper connection elements 3a, 13a form integral
parts of the rigid material making up the lower part 20b of the
upper sole member 20 (similar to the spike holding units 15). The
lower connection elements 3b, 13b form integral parts of the rigid
material making up the upper part 50a of the lower sole member 50.
Each pair of connecting elements is configured to receive the
corresponding element so as to improve the stability of the sole
arrangement 10. The central connecting elements 3a, 3b are
configured to be hold together by means of a screw (not shown in
the figures).
[0049] The inner unit 19 of the spike holding unit 15 is provided
with attachment means in the form of threads 22 allowing a spike
member 8 provided with corresponding threads to be detachably
attached to the spike holding unit 15, in this example to the inner
part 19 of the spike holding unit 15.
[0050] As can be seen in FIGS. 3 and 4 the spike member comprises
at one end an outwardly extending spike/stud/gripping part 6, at an
opposite end a threaded attachment part 18 and a washer/plate 9
between the gripping part 6 and the attachment part 18. The
threaded attachment part 18 and the washer/plate 9 form an integral
unit made of stainless steel. This integral unit has an axial hole
into which the gripping part 6 is inserted/press fitted. The
gripping part is made of hard metal (tungsten carbide).
[0051] In this example the spike member 8 comprises a collar 26
arranged at the washer/plate 9 that surrounds a part of the spike 6
and supports the spike 6.
[0052] As the spike member 8 is inserted through the spike opening
16 and attached by threading into the spike holding unit 15, 19,
the washer/plate 9 is pressed onto the outer/lower side of the
membrane 4 around the spike opening 16 which in turn presses onto
the outer/lower side of the spike holding unit 15 so as to form a
sealing around the spike member 8 and avoid that water or dirt
enters the sole arrangement 10. The washer/plate 9 is hexagonal to
make it easy to attach and detach the spike member 8, which is
useful, for instance, if worn put spike members 8 are to be
replaced.
[0053] As can be seen or at least understood from FIG. 3, the
flexible membrane 4 allows the spike member 8 to move vertically in
relation to the lower sole member 50 together with the upper sole
member 20.
[0054] The locking plate 30 is fixed in a vertical direction in
relation to the upper sole member 20 by means of being attached to
the upper sole member 50 using screws.
[0055] The material of the locking sole plate 30 and the lower part
20b of the upper sole member 20 is suitable for bringing about a
low friction between these two details and for making integrated
spike holding units 15 (for housing the inner part 19 of the
holding units).
[0056] The membranes 4 are dome-shaped and have a centrally located
spike opening 16 and are integrated with the (lower part 50b of)
the lower sole member 50.
[0057] The resilient bellows 7, which forms an integral part of the
lower sole member 50, is connected to the upper sole members 20.
The bellows 7 is flexible and allows the upper sole member 20 to
come closer to the lower sole member 50 so that the spikes 8 can
protrude through the underside of the lower sole member 50.
[0058] The invention is not limited by the embodiment described
above but can be varied within the scope of the claims. For
instance, the locking plate may be movable in other directions than
the longitudinal direction.
* * * * *