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Publication numberUS3290802 A
Publication typeGrant
Publication dateDec 13, 1966
Filing dateMar 20, 1964
Priority dateMar 20, 1964
Publication numberUS 3290802 A, US 3290802A, US-A-3290802, US3290802 A, US3290802A
InventorsSadao Fukuoka
Original AssigneeSadao Fukuoka
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 3290802 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Dec. 13, 1966 I SADAO FUKUOKA 3,290,802

- SANDALS Filed March 20, 1964 mm: m


S. Fu kuoku Attorneys United States Patent 3,290,802 SANDALS Sadao Fukuoka, 20 Minami Fukushima,

Tokushima, Japan Filed Mar. 20, 1964, Ser. No. 353,374 1 Claim. (Cl. 36-115) This invention relates to improvements in sandals, and more particularly to a sandal having novel means therein to prevent its inadvertent removal from a wearers foot.

Sandals of the type herein concerned are used for beach and bath wear by both men and women, and are becoming increasingly popular. Such sandals are comfortable to Wear, but, unfortunately, conventional sandals have a tendency to slip off the wearers foot, which is disconcerting and annoying. With this in mind, the principal object of the present invention is to provide a novel sandal construction including simple, integral means to prevent its inadvertent removal from a wearers foot.

A more specific object of the present invention is to provide a sandal having a novel cross strap which fits over the users instep and which is specially designed to frictionally engage the wearers foot to prevent it from being inadvertently withdrawn from said sandal.

Further objects of the present invention are to provide an improved sandal which is attractive in appearance, comfortable, relatively inexpensive in design and construction, and which is otherwise particularly well adapted for its intended purposes.

With the above and other objects in view, the invention comprises the improved sandal described in the following specification, and all equivalents thereof, and any and all changes or modifications therein which may come within the spirit of said invention and within the scope of the appended claim.

In the accompanying drawing, illustrating a preferred embodiment of the invention:

FIG. 1 is a perspective view of the improved sandal;

FIG. 2 is a front elevational view of said sandal;

FIG. 3 is a vertical cross-sectional view of the novel cross strap characterizing the present construction, taken along line 3-3 of FIG. 2; and

FIG. 4 is a side elevational view showing a wearers foot positioned in the sandal.

Referring now more particularly 'to the drawing, it will be seen that the present sandal includes a flat sole 10, formed of rubber, plastic, or any other suitable material, and which is preferably provided with a crepe-type upper surface which is comfortable and yet provides frictional engagement to prevent the users foot from sliding thereon.

Mounted in and projecting upwardly from the forward portion of the sandal is an upright strap member 15, hereinafter referred to as the toe strap, which is molded of plastic or other suitable flexible and pliable material, and which is anchored to the sole at the point 16, as shown. Said upright strap member is designed to fit between the wearers big toe and his second toe, and formed integrally on the upper end thereof and diverging rearwardly are a pair of side straps 12 and 13. Said side straps are molded of flexible plastic material, and, as will be seen in FIG. 1, said strap members are bowed outwardly and are anchored to the sole at points 14 spaced from the rearward end thereof. Said diverging side straps 12 and 13 form a V-type strap design, as illustrated, and ext-ending therebetween intermediate their length is the novel, specially-designed cross strap 18 featured in the present invention.

Said cross strap 18 is molded of flexible elastic material, and, as will be seen in FIG. 3, said strap is substantially eliptical in cross section, being provided with convex outer and inner surfaces. Because of its flexible and elastic nature said cross strap is adapted to be stretched over a wearers instep, as shown in FIG. 4, and due to the convex inner surface thereof said strap frictionally engages the instep to restrict any tendency of the foot 19 to pull rearwardly and outwardly of the sandal. The inner face of said strap is smooth, as shown in FIG. 3, and does not damage or bruise the foot.

From the foregoing description it will be seen that the present invention provides a new and improved sandal construction which is a definite advancement in the art. With the present sandal the possibility of the wearers foot slipping out is minimized, and yet the sandal is comfortable and easy to put on, or remove. Moreover, the sandal is unique and attractive in appearance, and it is relatively inexpensive to manufacture. It is to be understood, of course, that the invention is not to be limited and confined to a sandal exactly as described and illustrated in the drawing. It is contemplated, for example, that changes could be made in either the appearance or structure without departing from the spirit of the invention, and it is intended to include herein not only the illustrated structure but also any and all modifications or changes therein as may come within the scope of the following claim.

What I claim is:

A sandal for a users foot, comprising: a sole having a forward toe end and having a rearward heel end; a toe strap projecting upwardly from said sole adjacent the forward end thereof, said toe strap being adapted to project upwardly between two of the wearers toes; a pair of flexible side straps which are elliptical in cross section formed as a unitary one-piece construction with the upper end of said toe strap and diverging rearwardly therefrom, the rearward ends of said side straps being fastened to the rearward portion of said sole adjacent the side edges thereof forwardly of said sole heel end; a cross strap formed of a flexible and elastic material having frictional adherence properties formed as a unitary onepiece construction with and extending between said diverging side straps and positioned to stretch across a wearers instep, said cross strlap being of elliptical cross section to provide a convex undersurface adapted to frictionally engage the wearers instep to prevent the inadvertent withdrawal of his foot.

References Cited by the Examiner UNITED STATES PATENTS 2,185,762 1/1940 Cox 368.1 2,390,685 12/1945 Benson 3611.5 2,758,395 8/1956 Miyaji 3611.5

FOREIGN PATENTS 784,038 10/1957 Great Britain.

PATRICK D. LAWSON, Primary Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2185762 *Feb 2, 1939Jan 2, 1940Raymond F AndersonFootwear
US2390685 *Nov 29, 1943Dec 11, 1945Benson Frederick JSandal
US2758395 *Aug 13, 1953Aug 14, 1956Seiichi MiyajiRubber sandal
GB784038A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3577662 *Jan 14, 1970May 4, 1971Fukuoka TatsuoFootwear
US3683519 *Dec 31, 1969Aug 15, 1972Creamer AdeleneNon-slip foot device
US3930322 *Apr 14, 1975Jan 6, 1976Ichitaro EndoClog
US4051610 *May 4, 1976Oct 4, 1977Yoshihiro ShigejiSandal
US4477985 *Jun 3, 1982Oct 23, 1984Yuan Hsiang ChenSanitary sandals
US4530171 *Dec 16, 1983Jul 23, 1985Zabala Bert MSandal
US4972610 *Jul 18, 1989Nov 27, 1990Milton TongProtective foot covering
US4976049 *Oct 11, 1989Dec 11, 1990Myers Ronald KScrubbing shower sandal
US7284341Oct 27, 2005Oct 23, 2007Moseley Marshall GSand walking sandal
US8230621Sep 4, 2009Jul 31, 2012Stylsh, LlcShoe with removable and reconfigurable uppers
US20060096124 *Oct 27, 2005May 11, 2006Moseley Marshall GSand walking sandal
US20090313849 *Jun 9, 2009Dec 24, 2009Nicholas Allen SheltonOrnamental upper sandal straps for the display of logos or text
US20110056091 *Sep 4, 2009Mar 10, 2011Yelena ShmurakShoe with removable and reconfigurable uppers
US20120060390 *Sep 13, 2010Mar 15, 2012Hofbauer Thomas JFootwear
US20150157089 *Jul 4, 2012Jun 11, 2015Tobias SchumacherShoe sole for gait correction or gait preservation
USD683935May 27, 2011Jun 11, 2013Brandi Renee Designs, LLCJeweled trim for a sandal
USD755484 *Mar 26, 2015May 10, 2016Edkami Inc.Sandal
USD794924 *Aug 10, 2016Aug 22, 2017Green Flip Flops Brasil, Ltda-MeSandal
USRE42483 *Jan 10, 2008Jun 28, 2011Bernardo Footwear, L.L.C.Sandal
EP0873694A1 *Apr 22, 1997Oct 28, 1998Shinichi BeppuThong type sandal
U.S. Classification36/11.5, D02/917
International ClassificationA43B3/10
Cooperative ClassificationA43B3/105
European ClassificationA43B3/10B1L