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Publication numberUS3624930 A
Publication typeGrant
Publication date7 Dec 1971
Filing date30 Jul 1969
Priority date30 Jul 1969
Publication numberUS 3624930 A, US 3624930A, US-A-3624930, US3624930 A, US3624930A
InventorsClark Robert A, Johnson Oney A
Original AssigneeGeorge B White, Johnson Oney A, Clark Robert A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Insole with ventilating passages
US 3624930 A
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Description  (OCR text may contain errors)

Dec. 7, 1971 0, JOHNSON ETAL 3,624,930

INSOLE WITH VENTILATING PASSAGES Filed July 30, 1969 2 Sheets-Sheet 1 .2 *2 l 1 151.51 T 0'; o 9 5 /4 0 0 5 1/ j W 5 I \\\\\\\\\\\\m 6 fzgfi.

INVIZNTORS Dec. 7, 1971 O, JOHNSON ETAL 3,624,930

Filed July 30, 1969 13 Sho0'LsShuut 2 i 6 2 5 m Fg 5 INVIfNTURZ) ONEY A. JOHNSON BY ROBERT A. CLARK United States Patent 3,624,930 INSOLE WITH VENTILATING PASSAGES Oney A. Johnson, Forestville, and Robert A. Clark, Piedmont, Calif., assignors of a fractional part interest to George B. White, San Francisco, Calif.

Filed July 30, 1969, Ser. No. 846,046 Int. Cl. A4311 13/38 US. C]. 3643 4 Claims ABSTRACT OF THE DISCLOSURE An inner sole for a shoe, provided wtih longitudinal resiliently compressible ribs along its underface forming longitudinal open channels throughout the entire length of the insole from the heel end to the toe end, so that alternating foot pressure thereon from the heel to the toe, pumps air toward the toe; ventilating holes extend through the insole from the channels upwardly to direct air to the toes.

BACKGROUND OF THE INVENTION The problem of self-venting shoes was heretofore approached by cellular sole structures, or by a single longitudinal vent passage within the shoe sole itself, or wa-file design cells on the bottoms of insoles, or two layer inserts, or just simple holes through insoles, but previous solutions proved either too complex and expensive, or resulted in defective venting or accomplished little or no air circulation at all. The primary object of this invention is to provide a simple, inexpensive insole which can be easily made and inserted in a shoe without need for alteration of the shoe or the shoe sole, and which functions efliciently and consistently as alternately compressed and relieved by the foot during usual walking motion, to intake air at the open heel ends of the channels and then by gradual flattening of ribs between channels from the heel toward the toe pump air toward and out through the toe ends of the open channels and up through holes at the toe end of the insole.

DESCRIPTION OF DRAWINGS FIG. 1 is a bottom plan view of the insole.

FIG. 2 is a fragmental bottom view of the toe end of the insole.

FIG. 3 is a cross-sectional view of the insole, the section being taken on lines 3-3 of FIG. 1.

FIG. 4 is a cross-sectional view of the toe portion of the insole, the section being taken on lines 4-4 of FIG. 2.

FIG. 5 is a fragmental cross-sectional view of the insole resting on the sole of a shoe.

FIG. '6 is a fragmental cross-sectional view of the insole pressed and the ribs flattened against the sole of a shoe.

FIG. 7 is a longitudinal sectional view illustrating the compressing of the insole at the heel.

FIG. 8 is a longitudinal sectional view illustrating the compression of the insole toward the toe.

DETAILED DESCRIPTION The body 1 of the inner sole is of the usual contour to fit into a shoe. A plurality of parallel channels 2 are formed in the underface of the body 1. The channels 2 extend longitudinally the entire length of the portion on which they are respectively located. The middle channels 2 extend the entire length of the insole from the heel end 3 to the toe end 4. The channels 2 near the side edges or side portions of the inner sole body I extend the full length of those side portions from the heel-ward edge to the toe-ward edge, as shown in FIG. 1.

BEST AVAILABLE COPY The channels 2 are separated by longitudinal ribs 5 which are resiliently compressible so that the ribs 5 can be flattened against the shoe sole 6 and then released by parts of the foot during the usual rocking motion of the foot '7.

'Near the toe portion of the insole are a plurality of vent holes 9 arranged in staggered pattern, each hole 9 extending from a channel 2 upwardly through the body 1 of the insole to conduct air directly under the toes 10 of the foot 7.

The insole is faced on its top with a cloth fabric facing 11. For optimum venting, the channels 2 are of uniform cross-sectional area and are spaced uniformly from one another. The resiliently compressible material herein used may be of sponge rubber, foam latex, or similar material which does not deteriorate under the usual heat generated in a shoe. The undersides of the ribs bear on a usually non-porous surface 12 on the sole of the shoe.

Operation The insole is inserted in the shoe in the position shown in FIGS. 7 and 8, so that the resiliently compressible ribs 5 rest on the non-porous surface 12 of the sole of the shoe. The ribs 5 are of suflicient firmness to keep the channels 2 normally open for their full lengths with the foot off the ground. When walking the person usually places his entire weight first on the heel of the forward foot and as the foot rocks forward the weight is shifted gradually toward the ball of the foot and the toes, whereby the ribs 5 are compressed and flattened gradually from the heel end of the insole to its toe end expelling the air from the channels 2 through the open toe ends of the channels 2 and through vent holes 9.

The foot rocks during walking, alternately placing full weight on the heel and on the ball of the foot and the toes, and thus the ribs 5 are compressed and expanded alternately at the heel end and the toe end of the insole producing a pumping action circulating air through the channels 2 for ventilating the foot.

We claim:

1. An insole for removable insertion in a shoe comprising:

an insole body formed of a sheet of material in the usual contour of the inside of the sole of a shoe and having a heel end and a toe end,

integral resiliently compressible ribs on the underface of said body forming substantially parallel longitudinal channels throughout the entire length of the insole body from the heel end to the toe end thereof, said channels being uncovered throughout their entire lengths and at both ends, whereby said ribs are adapted to be pressed directly on the inside bottom of the shoe and released alternately for pumping air through said channels,

the resilient compressibility of the ribs being such as to be flattened progressively by the pressure exerted thereon for expelling air from said channels into the shoe at the toe end of said insole body.

2. The invention defined in claim 1:

and a plurality of vent holes extended from certain of the channels upwardly through said body at the toe end of the insole.

3. The invention defined in claim 1:

and said channels being of uniform cross-sectional area throughout their length, and said ribs being of uniform cross-sectional area throughout their length.

4. The invention defined in claim 3:

and said body is being flat and is being made of resiliently compressible material.

(References on following page) BEST AVAILABLE COPY FOREIGN PATENTS 2/1966 France 36-3 B ALFRED R. GUEST, Primary Examiner References Cited UNITED STATES PATENTS 1,432,81 1

8/ 1908 Von Bracht 36-3 B 12/ 1928 IShanahan 363 B 7/1938 Smith 36-3 B 11/1955 Drefvelin 36--3 B 36 3 B 8/ 1962 Robbins 363 B US. Cl. X.R.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4015347 *14 Nov 19755 Apr 1977Kazuyoshi MorishitaInsoles effective for curing and preventing athlete's foot
US4413430 *30 Oct 19818 Nov 1983Brown Dennis NSkate boot insert
US4499671 *23 Jul 198219 Feb 1985Giulio SottolanaShoe bottom for general footwear including heel, instep, plantar, support and insole
US4627179 *10 Jul 19859 Dec 1986Action Products, Inc.Shock absorbing insole construction
US4776109 *20 May 198711 Oct 1988Danner Shoe Manufacturing Co.Comfort insole for shoes
US4777739 *26 Aug 198118 Oct 1988Hamilton Kent Manufacturing Company, Inc.Shock absorbing structures
US4837948 *3 Jun 198813 Jun 1989Cho Kang RaiNatural ventilation type footwear
US5035068 *9 Nov 198930 Jul 1991The Wind Pro CorporationShoe and removable shoe insole system
US5203096 *3 Dec 199020 Apr 1993Rosen Henri EInsole assemblies for shoe girth adjustment
US5287638 *28 Jan 199222 Feb 1994Brown Group, Inc.Water massage and shock absorption system for footwear
US5369895 *5 Mar 19886 Dec 1994Natec Institut Fur Naturwissenschaftlichtechnische DienstePlastic shoe with ventilation arrangement
US5400526 *14 Sep 199328 Mar 1995Sessa; Raymond V.Footwear sole with bulbous protrusions and pneumatic ventilation
US5815949 *10 Jun 19976 Oct 1998Sessa; Raymond V.Footwear insert providing air circulation
US6196556 *5 Dec 19966 Mar 2001Salomon S.A.Roller skate
US619930418 May 199913 Mar 2001Nine West Group, Inc.Sockliner
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US715584522 Apr 20022 Jan 2007Exten.SSole with extensible structure footwear equipped with same and method for mounting same
US7437836 *2 Jul 200721 Oct 2008Aison Co., Ltd.Insole assembly for increasing weight of footwear and heavy footwear having weight-increasing midsole/outsole
US759108313 Jun 200622 Sep 2009Kenton D. GeerFootwear structure and method of forming the same
US762105822 Nov 200624 Nov 2009Exten.SSole with extensible structure
US762796319 Nov 20078 Dec 2009Nike, Inc.Footwear with longitudinally split midsole for dynamic fit adjustment
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US7658018 *31 May 20079 Feb 2010Chao-Yung ChanInsole with ventilation
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US838141626 Oct 201026 Feb 2013Kenton D. GeerFootwear structure and method of forming the same
US20120066937 *19 Sep 201022 Mar 2012Che Meng ChangShoe pad
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Classifications
U.S. Classification36/43, 36/3.00B
International ClassificationA43B17/00, A43B17/08
Cooperative ClassificationA43B17/08
European ClassificationA43B17/08