CA1045815A - Anti-slip device, preferably for footwear - Google Patents
Anti-slip device, preferably for footwearInfo
- Publication number
- CA1045815A CA1045815A CA220,828A CA220828A CA1045815A CA 1045815 A CA1045815 A CA 1045815A CA 220828 A CA220828 A CA 220828A CA 1045815 A CA1045815 A CA 1045815A
- Authority
- CA
- Canada
- Prior art keywords
- extrusion
- ring
- extrusion portion
- gripping
- walking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C15/00—Non-skid devices or attachments
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Jib Cranes (AREA)
Abstract
ABSTRACT
An anti-slip device for shoe wear, walking sticks and the like, comprises a metal gripping ring fitted on a rubber body connected to a heel, sole or ferrule, by resilient connecting parts adjacent a groove so that in normal use without slipping the gripping ring remains parallel to the ground but when slipping commences the rubber body bends to cause the lower edge or the gripping ring to drive into the ground.
An anti-slip device for shoe wear, walking sticks and the like, comprises a metal gripping ring fitted on a rubber body connected to a heel, sole or ferrule, by resilient connecting parts adjacent a groove so that in normal use without slipping the gripping ring remains parallel to the ground but when slipping commences the rubber body bends to cause the lower edge or the gripping ring to drive into the ground.
Description
~045815 BACKGROUND OF THE INVENTION
To prevent slipping of footwear one has, up to now, used fixed studs or loose spikes on a heel or sole which are fastened to a shoe with straps or by a rubber case around the front part of the foot and a rubber strap behind the heel.
These devices give good protection against slipping on ice and packed snow. The fixed studs, however, badly damage parquet floors or linoleum floor coverings and the loose spikes are difficult to put on and take off.
PURPOSE OF THE INVENTION
The present invention provides an antislip device fixed in a 6pecially designed heel or sole which does not bring about any damage to parquet floors or linoleum floor ~overings and which is fully efficient on ice, packed snow and wet metal roofs and rocks.
SUMMARY OF THE INVENTION
- The device of the lnventlon is u~eful for preventing slipping --on a walking 6urface, and comprises a base portion and an extrusion portion that is connected to the base portion to cause the extru6ion portion to move between a fir6t position and a second position with respect to the base portion.
The extrusion portion has a gripping 6urface section and a nongripping surface section. The nongripping surface section is in-contact with the walking surface when the protrusion portion is in the first position. The gripping surface section is $n contact with the walking surface when the extrusion portion is in the second position. The base portion and extrusion portion are connected by a connecting mean6 having a structural configuration effective to maintain the extrusion portion in the first position when the walking surface is not slippery but i6 effective to cause the extrusion portion to be in the second position when the walking surface is slippery. Thus, when the surface is not slippery, the gripping surface section is not in contact with the walking surface thus protecting the walking surface from any damage.
When the walking surface is slippery such as on an icy ground condition, the gripping surface section of the extrusion will be in contact with the slippery walking 6urface. ~
A
. . . .
.. . .
16~45815 There are various embodiments of the extrusion portion having different shapes on the end thereof wherein the nongripping surface section is located. There are also various embodiments of the gripping surface section which are laterally spaced from the nongripplng surface section of the extrusion portion. As i8 evident from the disclosure, the antislip device may include a single base portion and extrusion portion interconnected as stated or it may comprise a plurality of elements having the stated relationship existing between the extrusion portion and base portion. A plurality of these elements would be placed across the entire ~-surface of an article of manufacture such as a shoe sole or heel.
BRIEF DESCRIPTION OF THE DRAWINGS
Reference will now be made to the accompanying drawings wherein like reference characters designate corresponding parts in the several views. In the drawings:-Flg. 1. i8 a longitudinal cross-sectional view of an antislip device in accordance with this invention;
Fig. 2 i8 a further embodiment of an antislip device in ac-cordance with this invention;
Fig. 3 is a longitudinal cross-sectional view of a further embodiment of an antislip device in accordance with this invention;
Fig. 4 is a plan viewofagripping ring element as used in the embodiment shown in Fig. 3;
Fig. 5 is a longtudinal cross-section of a further embodiment of an antislip device in accordance with this invention;
Fig. 6 is a longtudinal cross-sectional view of a still further embodiment of an antislip device in accordance with this invention;
Fig. 7Ais a longitudinal cross-6ectional view of another em-bodiment of an antislip device in accordanc~ with this invention;
Fig. 7B i~ a fragmentary plan view of the embodiment shown in Figure 7A;
:
~ 2 10458~5 Fig. 8 is a fragmentary longitudinal cros~-sectional vlew of another embodiment in accordance with this invention; snd Fig. 9 is a fragmentary, longitudinal cross-sectional view of a further embodiment in accordance with this invention.
DESCRIPTION OF SPECIFIC E~ODrMENTS
More specifically, each of the devices being various em-bodiments of the antislip device ln accordance with this invention, are discussed with respect to the vertical, longitudinal cross-sectional view of heels having the antislip device attached thereto.
Fig. 1 shows a substantially cYlindrical rubber extrusion 2 having a ring 1 made of hard metal coaxially bonded or vulcanlzed to it. The ring 1 ls semi-circular in radial cross section, so shaped that its concave surface is presented outwards and has outwardly directed end flanges 3. The ex-trusion 2 pro~ects under ~he ring 1 and is finished off with a convex surface ~ -on its underside. Its upper end i8 connected by means of an upwardly diverg~ng flange ring 4 of rubber, with a heel or sole 6, also of rubber, which is provided with a groove 7 above the centre of the extru~ion 2 and this groove 7 is preferably shaped mainly as an upwardly sonverging truncated cone.
The flange ring 4 is thinner on that side upon which one would wish that the extrusion 2 should most easily bend or pivot and is on its op-posite side provided with extensions 5 presented towards the groove 7, so .
arranged as to limit the pivoting angle and to direct and facilitate the pi-voting of the extrusion 2 in the appropriate direction.
During normal walking, the extrusion 2 will be pressed upwards w~thout any special turning or pivoting action whereby its convex underside is lying against the ground- Because of the fact that this unterside consists df rubber, it cannot damage floors. If, while walking on slippery ground, the shoe should start slipping, the extrusion 2 will turn or bend in the opposite direction again6t the slippage so that the outwardly directed end flange of the ring 1 will sharply drive into the groundand thereby stop the slipping.
It has proved advantageous to incorporate, in the underside of the extrusion 2, pieces of hard material which, during slipping, will increase 3.
.. . . .. .... .:, .: : : ;: . . .. : . , ........ :
~- 1045815 the friction of th~ extrusion 2 against the ground and lnitiate the pivo~ing or bending of the extrusion 2.
The device shown in Fig. 2 differs from the device of Fig. 1 in the respect that the ring 1 in radial cross section is cylindrical in shape with outwardly directed end flanges 3. It has also proved advantageous to provide the ring 1 with an inwardly directed flange 8 in the upper end of the ring 1. This device works in the same way as that shown in Fig. 1.
The devices shown in Figs. 3 and 4 differ from the above mentioned device in the respect that the ring 1, which lacks flanges, is made of a strip that has been bent into a ring. In order to improve the bonding or vulcani~ation it has provéd advantageous to bend at least one end 9 of the strip inwards towards the center of the ring as shown in Fig. 4.
The device shown in Fig. 5 differs from the above mentioned design in the respect that the ring 1 has been replaced by a vulcanized or rubber - metal composite conical plate 11 with a hole centrally therethrough and with downwardly directed teeth 10 which preferably reach the lower out-side edge of the extrusion 2.
Because of the cost, it has proved advantageous to make the greater part of the ring 1 or the plate 11 in a hard metal and only the lower edge of the ring 1 and the teeth 10 of the plates 11 in a harder metal.
This device of Pig. S also works substantially in the same way as that of Fig. 1.
The device shown in Pig. 6 differs from that sho~n in Fig. 5 in the respect that the extrusion 2 on its convex underside is provided with a central spherical concave indentation 12, which, while wa~king, particularly on wet glassy ice, works as a suction cup and when slipping contributes to ini-tiating the pivoting. The diameter of the indentation 12 is preferably half that of the outside diameter of the plate 11.
The device shown in Figs. 7A and 7B differs from that shown in Fig.6 in the respect that the projectlng part of the extrusion 2 under the plate 11 is provided with a substantially flat underside in which there are arranged a number of sphericslly curved collcave grooves or recesses 13 of shallow depth, preferably arranged in concentric rings, which work as suction cups 4.
.
`` 104581S
when walking orj wet glassy ice and initiate the pivoting when slipping.
The device shown in Fig. 8 differs from the above mentioned device of Figs. 7A and 7B in the respect that the extrusion 2 on its underside is provided with a circular plate 14 made of hard material which is at its upper side provided with a projecting central har.dle 15. Thls handle 15 extends through a central hole in the extrusion 2 and is kept fixed by a shaft tab 16 bonded in the extrusion 2 near its upper side, with resilient fingers which lie against the handle 15.
The device shown in Fig. 9 differs from that of Fig. 8 in the respect that the tab 16 is not bonded or vulcanized to the extrusion 2 but lies against the upper side of said extrusion 2, and that between the plate 14 and the underside of the extrusion 2 there is positioned a flange 17 made of hard metal of which the edge protrudesbeYnd the edge of the plate 14.
While only eight embodiments of the invention are shown and described, it will be understood that others can exist within the scope of this invention.
., "
,- . ..
To prevent slipping of footwear one has, up to now, used fixed studs or loose spikes on a heel or sole which are fastened to a shoe with straps or by a rubber case around the front part of the foot and a rubber strap behind the heel.
These devices give good protection against slipping on ice and packed snow. The fixed studs, however, badly damage parquet floors or linoleum floor coverings and the loose spikes are difficult to put on and take off.
PURPOSE OF THE INVENTION
The present invention provides an antislip device fixed in a 6pecially designed heel or sole which does not bring about any damage to parquet floors or linoleum floor ~overings and which is fully efficient on ice, packed snow and wet metal roofs and rocks.
SUMMARY OF THE INVENTION
- The device of the lnventlon is u~eful for preventing slipping --on a walking 6urface, and comprises a base portion and an extrusion portion that is connected to the base portion to cause the extru6ion portion to move between a fir6t position and a second position with respect to the base portion.
The extrusion portion has a gripping 6urface section and a nongripping surface section. The nongripping surface section is in-contact with the walking surface when the protrusion portion is in the first position. The gripping surface section is $n contact with the walking surface when the extrusion portion is in the second position. The base portion and extrusion portion are connected by a connecting mean6 having a structural configuration effective to maintain the extrusion portion in the first position when the walking surface is not slippery but i6 effective to cause the extrusion portion to be in the second position when the walking surface is slippery. Thus, when the surface is not slippery, the gripping surface section is not in contact with the walking surface thus protecting the walking surface from any damage.
When the walking surface is slippery such as on an icy ground condition, the gripping surface section of the extrusion will be in contact with the slippery walking 6urface. ~
A
. . . .
.. . .
16~45815 There are various embodiments of the extrusion portion having different shapes on the end thereof wherein the nongripping surface section is located. There are also various embodiments of the gripping surface section which are laterally spaced from the nongripplng surface section of the extrusion portion. As i8 evident from the disclosure, the antislip device may include a single base portion and extrusion portion interconnected as stated or it may comprise a plurality of elements having the stated relationship existing between the extrusion portion and base portion. A plurality of these elements would be placed across the entire ~-surface of an article of manufacture such as a shoe sole or heel.
BRIEF DESCRIPTION OF THE DRAWINGS
Reference will now be made to the accompanying drawings wherein like reference characters designate corresponding parts in the several views. In the drawings:-Flg. 1. i8 a longitudinal cross-sectional view of an antislip device in accordance with this invention;
Fig. 2 i8 a further embodiment of an antislip device in ac-cordance with this invention;
Fig. 3 is a longitudinal cross-sectional view of a further embodiment of an antislip device in accordance with this invention;
Fig. 4 is a plan viewofagripping ring element as used in the embodiment shown in Fig. 3;
Fig. 5 is a longtudinal cross-section of a further embodiment of an antislip device in accordance with this invention;
Fig. 6 is a longtudinal cross-sectional view of a still further embodiment of an antislip device in accordance with this invention;
Fig. 7Ais a longitudinal cross-6ectional view of another em-bodiment of an antislip device in accordanc~ with this invention;
Fig. 7B i~ a fragmentary plan view of the embodiment shown in Figure 7A;
:
~ 2 10458~5 Fig. 8 is a fragmentary longitudinal cros~-sectional vlew of another embodiment in accordance with this invention; snd Fig. 9 is a fragmentary, longitudinal cross-sectional view of a further embodiment in accordance with this invention.
DESCRIPTION OF SPECIFIC E~ODrMENTS
More specifically, each of the devices being various em-bodiments of the antislip device ln accordance with this invention, are discussed with respect to the vertical, longitudinal cross-sectional view of heels having the antislip device attached thereto.
Fig. 1 shows a substantially cYlindrical rubber extrusion 2 having a ring 1 made of hard metal coaxially bonded or vulcanlzed to it. The ring 1 ls semi-circular in radial cross section, so shaped that its concave surface is presented outwards and has outwardly directed end flanges 3. The ex-trusion 2 pro~ects under ~he ring 1 and is finished off with a convex surface ~ -on its underside. Its upper end i8 connected by means of an upwardly diverg~ng flange ring 4 of rubber, with a heel or sole 6, also of rubber, which is provided with a groove 7 above the centre of the extru~ion 2 and this groove 7 is preferably shaped mainly as an upwardly sonverging truncated cone.
The flange ring 4 is thinner on that side upon which one would wish that the extrusion 2 should most easily bend or pivot and is on its op-posite side provided with extensions 5 presented towards the groove 7, so .
arranged as to limit the pivoting angle and to direct and facilitate the pi-voting of the extrusion 2 in the appropriate direction.
During normal walking, the extrusion 2 will be pressed upwards w~thout any special turning or pivoting action whereby its convex underside is lying against the ground- Because of the fact that this unterside consists df rubber, it cannot damage floors. If, while walking on slippery ground, the shoe should start slipping, the extrusion 2 will turn or bend in the opposite direction again6t the slippage so that the outwardly directed end flange of the ring 1 will sharply drive into the groundand thereby stop the slipping.
It has proved advantageous to incorporate, in the underside of the extrusion 2, pieces of hard material which, during slipping, will increase 3.
.. . . .. .... .:, .: : : ;: . . .. : . , ........ :
~- 1045815 the friction of th~ extrusion 2 against the ground and lnitiate the pivo~ing or bending of the extrusion 2.
The device shown in Fig. 2 differs from the device of Fig. 1 in the respect that the ring 1 in radial cross section is cylindrical in shape with outwardly directed end flanges 3. It has also proved advantageous to provide the ring 1 with an inwardly directed flange 8 in the upper end of the ring 1. This device works in the same way as that shown in Fig. 1.
The devices shown in Figs. 3 and 4 differ from the above mentioned device in the respect that the ring 1, which lacks flanges, is made of a strip that has been bent into a ring. In order to improve the bonding or vulcani~ation it has provéd advantageous to bend at least one end 9 of the strip inwards towards the center of the ring as shown in Fig. 4.
The device shown in Fig. 5 differs from the above mentioned design in the respect that the ring 1 has been replaced by a vulcanized or rubber - metal composite conical plate 11 with a hole centrally therethrough and with downwardly directed teeth 10 which preferably reach the lower out-side edge of the extrusion 2.
Because of the cost, it has proved advantageous to make the greater part of the ring 1 or the plate 11 in a hard metal and only the lower edge of the ring 1 and the teeth 10 of the plates 11 in a harder metal.
This device of Pig. S also works substantially in the same way as that of Fig. 1.
The device shown in Pig. 6 differs from that sho~n in Fig. 5 in the respect that the extrusion 2 on its convex underside is provided with a central spherical concave indentation 12, which, while wa~king, particularly on wet glassy ice, works as a suction cup and when slipping contributes to ini-tiating the pivoting. The diameter of the indentation 12 is preferably half that of the outside diameter of the plate 11.
The device shown in Figs. 7A and 7B differs from that shown in Fig.6 in the respect that the projectlng part of the extrusion 2 under the plate 11 is provided with a substantially flat underside in which there are arranged a number of sphericslly curved collcave grooves or recesses 13 of shallow depth, preferably arranged in concentric rings, which work as suction cups 4.
.
`` 104581S
when walking orj wet glassy ice and initiate the pivoting when slipping.
The device shown in Fig. 8 differs from the above mentioned device of Figs. 7A and 7B in the respect that the extrusion 2 on its underside is provided with a circular plate 14 made of hard material which is at its upper side provided with a projecting central har.dle 15. Thls handle 15 extends through a central hole in the extrusion 2 and is kept fixed by a shaft tab 16 bonded in the extrusion 2 near its upper side, with resilient fingers which lie against the handle 15.
The device shown in Fig. 9 differs from that of Fig. 8 in the respect that the tab 16 is not bonded or vulcanized to the extrusion 2 but lies against the upper side of said extrusion 2, and that between the plate 14 and the underside of the extrusion 2 there is positioned a flange 17 made of hard metal of which the edge protrudesbeYnd the edge of the plate 14.
While only eight embodiments of the invention are shown and described, it will be understood that others can exist within the scope of this invention.
., "
,- . ..
Claims (33)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An antislip device for preventing slipping on a walking surface, said device comprising:
a) a base portion and an extrusion portion, b) said extrusion portion having a gripping surface section and a nongripping surface section, and c) means connecting the extrusion portion to the base portion to cause the extrusion portion to move between a first position and a second position with respect to the base portion, d) said nongripping surface section being in contact with the walking surface when the extrusion portion is in the first position, e) said gripping surface section being in contact with the walking surface when the extrusion portion is in the second position, f) said connecting means having a structural configuration effective to maintain the extrusion portion in said first position when the walking surface is not slippery but effective to cause the extrusion portion to be in said second position when the walking surface is slippery.
a) a base portion and an extrusion portion, b) said extrusion portion having a gripping surface section and a nongripping surface section, and c) means connecting the extrusion portion to the base portion to cause the extrusion portion to move between a first position and a second position with respect to the base portion, d) said nongripping surface section being in contact with the walking surface when the extrusion portion is in the first position, e) said gripping surface section being in contact with the walking surface when the extrusion portion is in the second position, f) said connecting means having a structural configuration effective to maintain the extrusion portion in said first position when the walking surface is not slippery but effective to cause the extrusion portion to be in said second position when the walking surface is slippery.
2. A device as claimed in claim 1 wherein:
said connecting means is resiliently flexible to cause the extrusion portion to move between said first and second positions.
said connecting means is resiliently flexible to cause the extrusion portion to move between said first and second positions.
3. A device as claimed in claim 1 wherein:
said connecting means comprises a resiliently flexible ring-shaped member which causes the extrusion portion to pivot between said first and second positions.
said connecting means comprises a resiliently flexible ring-shaped member which causes the extrusion portion to pivot between said first and second positions.
4. A device as claimed in claim 1 wherein:
said base portion has a structural configuration connect-able to an article of manufacture used in walking across said walking surface.
said base portion has a structural configuration connect-able to an article of manufacture used in walking across said walking surface.
5. A device as claimed in claim 1 wherein:
said base portion includes a groove and is connectable to a heel, sole or ferrule of an article of manufacture used in walking across said walking surface;
said base portion includes a groove and is connectable to a heel, sole or ferrule of an article of manufacture used in walking across said walking surface;
6. A device as claimed in claim 1 wherein:
said base portion comprises a heel, sole or ferrule.
said base portion comprises a heel, sole or ferrule.
7. A device as claimed in claim 1 wherein:
said connecting means comprises a resiliently flexible ring-shaped member that is thinner on one side than on the other side thereof to cause the extrusion portion to move by bending along said thinner side between said first and second positions.
said connecting means comprises a resiliently flexible ring-shaped member that is thinner on one side than on the other side thereof to cause the extrusion portion to move by bending along said thinner side between said first and second positions.
8. A device as claimed in claim 1 wherein:
said connecting means comprises a resiliently flexible ring-shaped member having an inwardly directed extension on one side thereof to cause the extrusion portion to bend along the side of the member opposite said extension.
said connecting means comprises a resiliently flexible ring-shaped member having an inwardly directed extension on one side thereof to cause the extrusion portion to bend along the side of the member opposite said extension.
9. A device as claimed in claim 8 wherein:
said inwardly directed extension has a substantially triangular cross-section in the plane of the longitudinal axis of the device to limit the angle of bending and to facilitate bending in the desired direction.
said inwardly directed extension has a substantially triangular cross-section in the plane of the longitudinal axis of the device to limit the angle of bending and to facilitate bending in the desired direction.
10. A device as claimed in claim 1 wherein:
said extrusion gripping surface section includes a gripping element composed of hard material.
said extrusion gripping surface section includes a gripping element composed of hard material.
11. A device as claimed in claim 10 wherein:
said extrusion has a circular cross-section normal to the longitudinal axis of the device, and, said gripping element comprises a circular gripping ring disposed around the extrusion.
said extrusion has a circular cross-section normal to the longitudinal axis of the device, and, said gripping element comprises a circular gripping ring disposed around the extrusion.
12. A device as claimed in claim 10 wherein:
said gripping element comprises a gripping ring made of a strip bent into the shape of a cylindrical ring.
said gripping element comprises a gripping ring made of a strip bent into the shape of a cylindrical ring.
13. A device as claimed in claim 12 wherein:
at least one of the ends of the strip is bent inwardly toward the centre of the ring.
at least one of the ends of the strip is bent inwardly toward the centre of the ring.
14. A device as claimed in claim 10 wherein:
said gripping element comprises a gripping ring having a radially, outwardly pointing flange at least at the lower axial end thereof, said flange having an outer edge being located along the outside of the extrusion portion.
said gripping element comprises a gripping ring having a radially, outwardly pointing flange at least at the lower axial end thereof, said flange having an outer edge being located along the outside of the extrusion portion.
15. A device as claimed in claim 14 wherein:
said gripping ring has an inwardly directed flange ring at the upper axial end thereof.
said gripping ring has an inwardly directed flange ring at the upper axial end thereof.
16. A device as claimed in claim 10 wherein:
said gripping element comprises a ring plate having downwardly directed teeth in a central hole therethrough.
said gripping element comprises a ring plate having downwardly directed teeth in a central hole therethrough.
17. A device as claimed in claim 16 wherein:
said ring plate teeth reach out to the lower outside end of said extrusion portion.
said ring plate teeth reach out to the lower outside end of said extrusion portion.
18. A device as claimed in claim 10 wherein:
said gripping element comprises a gripping ring fixed to the extrusion portion and having a central piece which will protrude down beyond the lower edge of said gripping ring.
said gripping element comprises a gripping ring fixed to the extrusion portion and having a central piece which will protrude down beyond the lower edge of said gripping ring.
19. A device as claimed in claim 18 wherein:
the outer end of the extrusion portion is substantially convex and has its periphery positioned at the same level as the lower edge of the gripping ring.
the outer end of the extrusion portion is substantially convex and has its periphery positioned at the same level as the lower edge of the gripping ring.
20. A device as claimed in claim 19 wherein:
the outer end of the extrusion portion has a substantially spherical concave indentation effective to work as a suction cup.
the outer end of the extrusion portion has a substantially spherical concave indentation effective to work as a suction cup.
21. A device as claimed in claim 18 wherein:
the outer end of the extrusion portion has an underside piece of hard material located under the lower edge of the gripping ring to drive into the ground when slipping begins for initiating the pivoting of the extrusion from the first position to the second position.
the outer end of the extrusion portion has an underside piece of hard material located under the lower edge of the gripping ring to drive into the ground when slipping begins for initiating the pivoting of the extrusion from the first position to the second position.
22. A device as claimed in claim 21 wherein:
the outer end of the extrusion portion has a central, substantially flat part including a number of spherical concave recesses effective to work as suction cups.
the outer end of the extrusion portion has a central, substantially flat part including a number of spherical concave recesses effective to work as suction cups.
23. A device as claimed in claim 22 wherein:
said recesses are disposed in concentric rings with respect to each other.
said recesses are disposed in concentric rings with respect to each other.
24. A device as claimed in claim 10 wherein:
said gripping element is a ring-shaped plate having a perpendicularly, upwardly directed handle disposed at the centre thereof, said handle extending through a vertical hole in the extrusion portion whereby the plate is kept seated against the flat under-side of the extrusion portion with a shaft tab.
said gripping element is a ring-shaped plate having a perpendicularly, upwardly directed handle disposed at the centre thereof, said handle extending through a vertical hole in the extrusion portion whereby the plate is kept seated against the flat under-side of the extrusion portion with a shaft tab.
25. A device as claimed in claim 24 wherein:
said shaft tab is fixedly bonded to the extrusion portion.
said shaft tab is fixedly bonded to the extrusion portion.
26. A device as claimed in claim 24 wherein:
said plate seated against the flat underside of the extrusion portion has a comparatively small layer of rubberized elastic material on its underside.
said plate seated against the flat underside of the extrusion portion has a comparatively small layer of rubberized elastic material on its underside.
27. A device as claimed in claim 26 wherein the underside of said layer is shaped like a ball cap.
28. A device as claimed in claim 26 wherein:
a flange of hard material is positioned between said plate and said underside of the extrusion portion.
a flange of hard material is positioned between said plate and said underside of the extrusion portion.
29. A device as claimed in claim 28 wherein:
the edge of said flange protrudes beyond the edge of said plate.
the edge of said flange protrudes beyond the edge of said plate.
30. A device as claimed in claim 1 wherein there are a plurality of devices each having a base portion connected to an extrusion portion.
31. A device as claimed in claim 1 wherein:
the nongripping surface section is located at the end of the extrusion portion away from the base portion.
the nongripping surface section is located at the end of the extrusion portion away from the base portion.
32. An antislip device for preventing slipping on a walking surface, said device comprising:
a) a heel member and a ground engaging extrusion depending downwardly beneath the heel member, b) a resiliently flexible ring-shaped member inter-connecting said heel member and said extrusion, and c) a gripping ring composed of relatively hard material disposed on said extrusion, d) said heel member having a hollow recess above said flexible member, e) said extrusion extending outwardly in a first position to maintain the gripping ring in shaped relationship with respect to the walking surface when no slipping occurs, f) said member being flexed to cause the extrusion to pivot sideways with respect to said first position and the lower edge portion of the gripping ring to be thrust into contact with the walking surface so as to restrain slipping.
a) a heel member and a ground engaging extrusion depending downwardly beneath the heel member, b) a resiliently flexible ring-shaped member inter-connecting said heel member and said extrusion, and c) a gripping ring composed of relatively hard material disposed on said extrusion, d) said heel member having a hollow recess above said flexible member, e) said extrusion extending outwardly in a first position to maintain the gripping ring in shaped relationship with respect to the walking surface when no slipping occurs, f) said member being flexed to cause the extrusion to pivot sideways with respect to said first position and the lower edge portion of the gripping ring to be thrust into contact with the walking surface so as to restrain slipping.
33. A device as claimed in claim 32 wherein:
said extrusion is composed of relatively soft material.
said extrusion is composed of relatively soft material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7402565 | 1974-02-27 | ||
| SE7412023 | 1974-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1045815A true CA1045815A (en) | 1979-01-09 |
Family
ID=26656454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA220,828A Expired CA1045815A (en) | 1974-02-27 | 1975-02-26 | Anti-slip device, preferably for footwear |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5140252A (en) |
| CA (1) | CA1045815A (en) |
| DK (1) | DK72375A (en) |
| FI (1) | FI750500A (en) |
| FR (1) | FR2261722B3 (en) |
| GB (1) | GB1505141A (en) |
| IE (1) | IE40698B1 (en) |
| IT (1) | IT1029891B (en) |
| NO (1) | NO138980C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD761086S1 (en) * | 2013-08-13 | 2016-07-12 | Trek Bicycle Corporation | Cleat |
| CN112484666B (en) * | 2020-11-04 | 2021-10-01 | 中国人民解放军国防科技大学 | Phase comparison method angle measurement system and method based on Reedberg atom EIT effect |
-
1975
- 1975-02-21 NO NO750597A patent/NO138980C/en unknown
- 1975-02-21 FI FI750500A patent/FI750500A/fi not_active Application Discontinuation
- 1975-02-25 DK DK72375*#A patent/DK72375A/da unknown
- 1975-02-26 FR FR7506044A patent/FR2261722B3/fr not_active Expired
- 1975-02-26 CA CA220,828A patent/CA1045815A/en not_active Expired
- 1975-02-27 GB GB8153/75A patent/GB1505141A/en not_active Expired
- 1975-02-27 JP JP50024464A patent/JPS5140252A/ja active Pending
- 1975-02-27 IT IT48380/75A patent/IT1029891B/en active
- 1975-02-27 IE IE420/75A patent/IE40698B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK72375A (en) | 1975-10-20 |
| DE2508215B2 (en) | 1977-03-31 |
| DE2508215A1 (en) | 1975-08-28 |
| FR2261722A1 (en) | 1975-09-19 |
| GB1505141A (en) | 1978-03-30 |
| FR2261722B3 (en) | 1977-11-04 |
| NO138980B (en) | 1978-09-11 |
| NO750597L (en) | 1975-08-28 |
| IE40698L (en) | 1975-08-27 |
| NO138980C (en) | 1978-12-20 |
| IE40698B1 (en) | 1979-08-01 |
| FI750500A (en) | 1975-08-28 |
| JPS5140252A (en) | 1976-04-03 |
| IT1029891B (en) | 1979-03-20 |
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