US3717943A - Mud resistant elastomers - Google Patents

Mud resistant elastomers Download PDF

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Publication number
US3717943A
US3717943A US00173961A US3717943DA US3717943A US 3717943 A US3717943 A US 3717943A US 00173961 A US00173961 A US 00173961A US 3717943D A US3717943D A US 3717943DA US 3717943 A US3717943 A US 3717943A
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United States
Prior art keywords
fins
sole
mud
boot
construction
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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 - Lifetime
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US00173961A
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English (en)
Inventor
R Orndorff
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Goodrich Corp
Original Assignee
BF Goodrich Corp
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Publication date
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Publication of US3717943A publication Critical patent/US3717943A/en
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/16—Overshoes
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form

Definitions

  • This invention relates to a molded, resilient selfcleaning piece of rubber and more particularly to a new and improved molded rubber sole which has a novel action of trapping air to clean itself when used in the environment of mud or like sticky materials.
  • the sole construction of the present invention which is particularly adaptable to overshoes is an improved concept over such corrugated ribs by providing a plurality of transversely extending flexible fins that are thinner in construction and even in spacing and of such length that they trap air between adjacent fins upon deflection such that they spring back into original shape and will clean themselves if such fins come in contact with mud.
  • One form of the invention is to have a plurality of fins disposed at approximately forty-five degree angle with respect to the horizontal plane and with the spaces between the fins being equal but with lobes at the forwardly most portion of the fin and with a relatively thin portion adjacent to the body portion to facilitate the trapping of air which aids in the self-cleaning action of the boot fins.
  • fin structure may be placed around the side surfaces of the boot to inhibit mud build-up in that area adjacent to the sole of a boot.
  • the fins are flexible such that the normal walking action of the overshoe will compress the fins easily to effect a trapping action of the air to clean the mud that is encountered on the lower most surface as well as the side surfaces.
  • Such invention is applicable to other rubber products wherein they inhibit the build-up of mud and their use in such an environment.
  • the present invention is especially applicable to boots and shoes.
  • This invention relates to sole construction and side boot construction such as used on overshoes, boots, or shoes wherein the sole has a resilient body that is adapted to be fixedly secured to the base of the shoe or an integral part of it as constructed.
  • the sole has a plurality of transversely extending fins, which fins slant downwardly from the resilient body. All the fins cross-sectional dimension is initially very thin and becomes progressively thicker to form a lobe.
  • the grooves between adjacent fins are equal and similar in dimension defining lobes in inverse order to the lobes of the fins.
  • the fins cooperate with each other such that on deflection the fins trap air to facilitate the self-cleaning feature whereby the sole of overshoes clean the mud.
  • the action of the fins on the side surfaces of the boot which may be flat thin fins or of the described lobe structure, perform a similar self-cleaning action. This invention is applicable to other uses that remove mud from their operating surfaces as in mud from tire surfaces.
  • FIG. 1 is a side elevational view of a boot provided with a sole construction embodying the principles of the present invention.
  • FIG. 2 is an enlarged fragmentary side elevational view of a portion of a sole construction of FIG. 1, showing the construction approximately three times its normal size.
  • FIG. 3 is a side elevational view of a boot provided with a sole and side construction embodying the principle of the present invention.
  • FIG. 4 is a cross-sectional view of the boot shown in FIG. 3 taken along line 4-4 thereof.
  • FIG. 5 is a fragmentary view of the forward portion of a boot showing a novel side construction.
  • FIG. 6 is a bottom view of the sole and side construction illustrated in FIG. 5.
  • FIG. 7 is an enlarged fragmentary side elevational view of a portion of a sole construction.
  • FIG. 1 a boot or overshoe 10 having a sole 11 and heel 12 construction made in accordance with the present invention.
  • the sole 11 and heel 12 are shown attached and part of the overshoe 10. It is to be understood that this sole and heel construction is particularly adaptable to an overshoe or boot construction which encounters mud and that this structure may be applied to shoes, tire or other surfaces to reduce or eliminate their mud pick-up.
  • the sole 11 includes a solid planar portion 13 (FIG. 2) that is generally horizontally disposed having a plurality of downwardly and forwardly extending fins 14.
  • the fins 14 extend transversely across the sole defining grooves 15 between adjacent pairs of fins 14.
  • Each fin 14 is of the same uniform configuration, having a lobe 16 at the outermost end portion and a relatively thin narrow bridging portion 17 beltween the lobe 16 and the horizontally disposed portion 3.
  • the height of lobed fin 16 is designated a and in the example illustrated is one-fourth of an inch (0.25).
  • the thickness of the bridging portion 17 of a fin 16 is two hundreths of an inch (0.020"), which is designated as b in FIG. 2.
  • the radius of a lobe is designated as R in FIG. 2 and is six hundredths of an inch (0.06).
  • the rear surface 18 of each fin is planar and make an angle of approximately thirty degrees with a line perpendicular to the horizontally disposed planar portion 13. All of the rear surfaces 18 of the fins 14 are parallel to each other.
  • the length of the fins 14 and the grooves 15 are determined by the width of the sole as viewed in plan of FIG. 6.
  • the lobes 16 of the respective fins 14 cooperate with the grooves 15 to trap air to facilitate the self-cleaning action of the sole.
  • the heel 12 of the boot is constructed of the same type of fins 14 as the sole, however, the fins 14 of the heel 12 are sloping in a generally rearward direction, i.e. or leftward as viewed in FIG. 1.
  • the lobes provide a much greater wear depth due to the thickness of the lobes than other types of lugs.
  • the distance between the lobe and the adjacent rear surface 18, designated in FIG. 2 is in the order of 0.02"
  • the air trapping action is instantaneous and effective especially in low-viscosity mud to inhibit the pick-up of mud.
  • the grooves 15 do not plug up.
  • the thinness of the bridging portion provides for more flexibility and acts as a hinge point to assure a quicker closing response of the lobes in their air trapping action.
  • the fin structure in FIG. 1 is larger than actually proportioned; however, such sole and heel construction in FIG. 1 is shown to illustrate the general overall structure in use.
  • the proportions are shown in FIG. 2 wherein the size is magnified three times.
  • the height of the lobed fin is designated a, thickness of the fin b, width of the groove between lobe 16 and surface 18 is c.
  • FIG. 3 A modified structure is shown in FIG. 3 wherein a boot 20 has a heel 21 and a sole 22 constructed so that each has a plurality of downwardly inclined fins 25.
  • the fins 25 extend transversely across the sole as shown in FIG. 6 defining grooves 26 between adjacent pairs of fins 25.
  • Each fin 25 is of uniform thickness throughout its height.
  • the fins extend downwardly and rearwardly with respect to the heel portion and downwardly and forwardly on the toe portion of the boot, with each fin having a front surface portion 27 and a rear surface portion 28. All of the front and rear surfaces 27 and 28 respectively of the fins 25 of the sole portion are parallel to each other and disposed at approximately with respect to the horizontal. However, such angle may vary from 25 to over with respect to the horizontal and still function to provide a novel result as set forth above.
  • the height of the fin designated as d in FIG. 7 is .1l5 of an inch whereas the height as measured along line e is 0.160 of an inch.
  • the height of the fins and that of the grooves are identical in height and width wherein width is taken as the cross sectional dimension running perpendicular to the surfaces of 27 and 28.
  • the length of the fin 25 and the groove 26 is determined by the width of the sole as viewed in plan view of FIG. 6.
  • the grooves 26 cooperate with their respective adjacent fins 25 to trap air which facilitates the self-cleaning action of the sole and the heel.
  • the entire circumferential side portions of the boot as depicted in FIG. 3 has a plurality of rows of fins w hich are identical in construction to that depicted by FIG. 7 and disclosed by the respective heels and soles to perform a cleaning action of mud along the side surfaces of the boot.
  • any number may be employed and as an example six rows of such fins were employed which were found to be very effective in the elimination of mud build-up along the side surfaces of the boot.
  • Such fins along the side surfaces operate in the same manner as described above on the sole and heel wherein the respective grooves of the fins trap air to facilitate the self-cleaning action thereof.
  • the dimensions of the fins in FIG. 4 are larger than designated by the dimensions d and e; however, such enlargement is for clarity purposes.
  • FIG. 5 depicts only the forward portion of the boot disclosing the fins as running vertically along the side edges of the boot wherein such fins may be inclined forwardly as disclosed by FIG. 6, i.e. the grooves 26 are open toward the forward portion of the toe of the boot.
  • FIG. 6 depicts only the forward portion of the boot disclosing the fins as running vertically along the side edges of the boot wherein such fins may be inclined forwardly as disclosed by FIG. 6, i.e. the grooves 26 are open toward the forward portion of the toe of the boot.
  • a variation on this is to have the respective fins slanted rearwardly towards the heel portion in an opposite direction to that shown in FIG. 6.
  • the height of the fins as disclosed in FIG. 5 is determined by the extent to which the side surfaces of the boot are covered.
  • a ground contacting element which covers substantially the entire bottom surface of a boot, overshoe, shoe or the like, comprising a resilient body adapted to be fixedly secured to the base of an overshoe, said resilient body having a plurality of transversely extending flexible fins, said fins extending generally downwardly from said resilient body at an acute angle therefrom, each of said fins having a front and a rear face portion said rear surface being planar, said forward surface having a curvilinear portion cooperative with said planar surface to define a lobe at the end portion and a thin narrow portion at the juncture of said fin to said base of a overshoe, each of said rear surfaces being parallel to each other, each of said fins cooperative with an adjacent fin to define a groove therebetween.
  • each of said grooves is similar in dimension to each other groove, and the distance between the thickest portion of a lobe and the adjacent rear surface is 0.020 of an inch.
  • a shoe construction having a shoe upper, said upper having side portions that encompass the entire peripheral bottom edges thereof, said shoe having a bottom surface portion, said upper portion being integrally formed with said bottom surface, said bottom surface having a sole portion and a heel portion, each of said sole and heel portions having a plurality of transversely extending flexible fins, all of said fins on said heel portion extending downwardly and rearwardly therefrom, all of said fins on said sole portion extending downwardly at an acute angle therefrom, all of said fins having an enlarged lobe portion at the end portion and a thin bridging portion that facilitates the flexing of the said fins, and said fins on said respective heel and sole portion cooperative with adjacent fins to define a groove therebetween.
  • the distance between the thickest portion of a lobe and the closest adjacent fin surface is 0.020 of an inch.
  • a ground contacting element for use in environments of mud and the like comprising a resilient flat body having a lower portion, said body having a plurality of spaced transversely extending flexible fins integral with said body, said fins extending downwardly and at an acute angle from said lower portion, each of said fins having a lobe in cross section with a thin bridging portion connecting said lobe to said lower portion.
  • adjacent fins define a longitudinally extending groove therebetween, and each of said grooves being inverse in shape compared to said fins with the greatest dimension of said groove extending from said bridging portion to an adjacent planar surface.
  • distance of said lobes of said fins at its thickest portion from the closest adjacent planar surface is between the ranges of 0.020 and 0.040 of an inch.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US00173961A 1971-08-23 1971-08-23 Mud resistant elastomers Expired - Lifetime US3717943A (en)

Applications Claiming Priority (1)

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US17396171A 1971-08-23 1971-08-23

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US3717943A true US3717943A (en) 1973-02-27

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US00173961A Expired - Lifetime US3717943A (en) 1971-08-23 1971-08-23 Mud resistant elastomers

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US (1) US3717943A (enrdf_load_stackoverflow)
JP (1) JPS4830551A (enrdf_load_stackoverflow)
BE (1) BE787892A (enrdf_load_stackoverflow)
BR (1) BR7205784D0 (enrdf_load_stackoverflow)
CA (1) CA962836A (enrdf_load_stackoverflow)
DE (1) DE2241182A1 (enrdf_load_stackoverflow)
FR (1) FR2151893A5 (enrdf_load_stackoverflow)
GB (2) GB1393552A (enrdf_load_stackoverflow)
IT (1) IT964979B (enrdf_load_stackoverflow)
NL (1) NL7211487A (enrdf_load_stackoverflow)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806974A (en) * 1972-01-10 1974-04-30 Paolo A Di Process of making footwear
US4060917A (en) * 1976-07-12 1977-12-06 Romolo Canale Sole structure particularly for climbing-boots
US4372058A (en) * 1977-11-21 1983-02-08 Stubblefield Jerry D Shoe sole construction
US5542195A (en) * 1994-02-02 1996-08-06 Wolverine World Wide, Inc. Shoe construction with internal cushioning ribs
US5775005A (en) * 1995-06-21 1998-07-07 Wolverine World Wide Inc. Footwear sole with cleated window
US5815949A (en) * 1997-06-10 1998-10-06 Sessa; Raymond V. Footwear insert providing air circulation
US5918385A (en) * 1998-02-11 1999-07-06 Sessa; Raymond V. Footwear sole
US20070033837A1 (en) * 2005-08-10 2007-02-15 Chinook Trading Company Outsole with anti-slip tread
US20090265956A1 (en) * 2004-12-23 2009-10-29 Craig Edward Richards Sole assembly
US20090282700A1 (en) * 2006-03-09 2009-11-19 Peter Dillon Footwear with independent suspension and protection
US20110016749A1 (en) * 2009-07-21 2011-01-27 Reebok International Ltd. Article Of Footwear And Methods Of Making Same
US20110167672A1 (en) * 2009-12-22 2011-07-14 K-Swiss Inc. Shoe sole having forwardly and rearwardly facing protrusions
EP2449906A2 (en) 2010-11-05 2012-05-09 Shoes For Crews, LLC Outsole tread pattern
WO2015073673A1 (en) 2013-11-14 2015-05-21 Shoes For Crews, Llc Outsole tread pattern
CN105394880A (zh) * 2015-12-29 2016-03-16 贵人鸟股份有限公司 用于鞋底跟部的回弹防侧滑装置
CN105394879A (zh) * 2015-12-29 2016-03-16 贵人鸟股份有限公司 用于鞋底的回弹防侧滑装置
CN105394878A (zh) * 2015-12-29 2016-03-16 贵人鸟股份有限公司 用于鞋底的回弹助力装置
CN105394877A (zh) * 2015-12-29 2016-03-16 贵人鸟股份有限公司 缓震回弹防溅鞋底
CN105433510A (zh) * 2015-12-29 2016-03-30 贵人鸟股份有限公司 用于鞋底跟部的回弹助力装置
US9392843B2 (en) 2009-07-21 2016-07-19 Reebok International Limited Article of footwear having an undulating sole
WO2017139528A1 (en) 2016-02-10 2017-08-17 Shoes For Crews, Llc Tread pattern combination for non-slip shoes
US20170367438A1 (en) * 2014-12-23 2017-12-28 The Rockport Company, Llc Sole For Footwear
WO2020041660A1 (en) 2018-08-23 2020-02-27 Shoes For Crews, Llc Footwear with slip resistant sole
US11369161B2 (en) 2019-02-28 2022-06-28 Shoes For Crews, Llc Slip resistant expansion overshoe

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729505A (en) * 1980-06-27 1982-02-17 Battelle Dev Corp Preparation of solid particulate material
CA1223122A (en) * 1984-01-16 1987-06-23 Bjýrn M. Gustavsen Footwear
JP5829310B1 (ja) * 2014-06-05 2015-12-09 孝一 中西 泥地用靴

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806974A (en) * 1972-01-10 1974-04-30 Paolo A Di Process of making footwear
US4060917A (en) * 1976-07-12 1977-12-06 Romolo Canale Sole structure particularly for climbing-boots
US4372058A (en) * 1977-11-21 1983-02-08 Stubblefield Jerry D Shoe sole construction
US5542195A (en) * 1994-02-02 1996-08-06 Wolverine World Wide, Inc. Shoe construction with internal cushioning ribs
US5775005A (en) * 1995-06-21 1998-07-07 Wolverine World Wide Inc. Footwear sole with cleated window
US5815949A (en) * 1997-06-10 1998-10-06 Sessa; Raymond V. Footwear insert providing air circulation
US5918385A (en) * 1998-02-11 1999-07-06 Sessa; Raymond V. Footwear sole
EP1827154A4 (en) * 2004-12-23 2012-06-06 Craig Edward Richards ASSEMBLY OF INSOLES
US20090265956A1 (en) * 2004-12-23 2009-10-29 Craig Edward Richards Sole assembly
US7703221B2 (en) * 2004-12-23 2010-04-27 Craig Edward Richards Sole assembly
US20070033837A1 (en) * 2005-08-10 2007-02-15 Chinook Trading Company Outsole with anti-slip tread
US20090282700A1 (en) * 2006-03-09 2009-11-19 Peter Dillon Footwear with independent suspension and protection
US9433256B2 (en) * 2009-07-21 2016-09-06 Reebok International Limited Article of footwear and methods of making same
US9392843B2 (en) 2009-07-21 2016-07-19 Reebok International Limited Article of footwear having an undulating sole
US20110016749A1 (en) * 2009-07-21 2011-01-27 Reebok International Ltd. Article Of Footwear And Methods Of Making Same
US20110167672A1 (en) * 2009-12-22 2011-07-14 K-Swiss Inc. Shoe sole having forwardly and rearwardly facing protrusions
US8671589B2 (en) 2009-12-22 2014-03-18 K-Swiss, Inc. Shoe sole having forwardly and rearwardly facing protrusions
US8322050B2 (en) 2010-11-05 2012-12-04 Shoes For Crews, Llc Outsole tread pattern
EP2449906A2 (en) 2010-11-05 2012-05-09 Shoes For Crews, LLC Outsole tread pattern
US9491985B2 (en) 2013-11-14 2016-11-15 Shoes For Crews, Llc Outsole tread pattern
WO2015073673A1 (en) 2013-11-14 2015-05-21 Shoes For Crews, Llc Outsole tread pattern
US20170367438A1 (en) * 2014-12-23 2017-12-28 The Rockport Company, Llc Sole For Footwear
CN105394878A (zh) * 2015-12-29 2016-03-16 贵人鸟股份有限公司 用于鞋底的回弹助力装置
CN105394877A (zh) * 2015-12-29 2016-03-16 贵人鸟股份有限公司 缓震回弹防溅鞋底
CN105433510A (zh) * 2015-12-29 2016-03-30 贵人鸟股份有限公司 用于鞋底跟部的回弹助力装置
CN105394879A (zh) * 2015-12-29 2016-03-16 贵人鸟股份有限公司 用于鞋底的回弹防侧滑装置
CN105394880A (zh) * 2015-12-29 2016-03-16 贵人鸟股份有限公司 用于鞋底跟部的回弹防侧滑装置
CN105433510B (zh) * 2015-12-29 2017-09-29 贵人鸟股份有限公司 用于鞋底跟部的回弹助力装置
WO2017139528A1 (en) 2016-02-10 2017-08-17 Shoes For Crews, Llc Tread pattern combination for non-slip shoes
WO2020041660A1 (en) 2018-08-23 2020-02-27 Shoes For Crews, Llc Footwear with slip resistant sole
US11246376B2 (en) 2018-08-23 2022-02-15 Shoes For Crews, Llc Footwear with slip resistant sole
US11369161B2 (en) 2019-02-28 2022-06-28 Shoes For Crews, Llc Slip resistant expansion overshoe

Also Published As

Publication number Publication date
BR7205784D0 (pt) 1973-09-13
DE2241182A1 (de) 1973-03-01
FR2151893A5 (enrdf_load_stackoverflow) 1973-04-20
BE787892A (fr) 1972-12-18
IT964979B (it) 1974-01-31
NL7211487A (enrdf_load_stackoverflow) 1973-02-27
CA962836A (en) 1975-02-18
GB1393553A (en) 1975-05-07
GB1393552A (en) 1975-05-07
JPS4830551A (enrdf_load_stackoverflow) 1973-04-21

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