Boots – shoes – and leggings – Boots and shoes – Sandals
Reexamination Certificate
2000-09-15
2004-01-27
Stashick, Anthony D. (Department: 3728)
Boots, shoes, and leggings
Boots and shoes
Sandals
C036S015000, C036S007500, C036S03000A
Reexamination Certificate
active
06681502
ABSTRACT:
TECHNICAL FIELD
The invention relates to a sandal with a shoe bottom which forms in particular a midsole and to which a strapping is fastened via an insole which is connected to the shoe bottom on the inside, and with an outer sole rim which is located at the strapping at least on the right and the left at the side and between which a foot support bed is arranged. The invention also relates to such a shoe bottom with an insole.
STATE OF THE ART
Sandals of the above type have long been widespread and are therefore known. The connection of the strapping to the shoe bottom is usually effected by the strapping being glued or sewn together with the shoe bottom. To this end, an angled end region of the strapping frequently extends between the shoe bottom and an outsole glued against the latter. In the case of thicker shoe bottoms, the strapping is often glued into lateral recesses of the shoe bottom. The ends of the strapping are also frequently introduced into the mold to be used during production of the shoe bottom, so that the strapping is foamed into the shoe bottom.
During walking in sandals, the foot is supported on the shoe bottom and often transmits relatively great forces into the strapping, as a result of which there is a risk of the strapping coming away from the shoe bottom. This is particularly true of inexpensive sandals, in which the strapping is not inserted under the shoe bottom but is simply glued to the shoe bottom from the side.
DE 30 43 725 U1 describes a flexible shoe in which the shoe bottom is covered on the inside by an insole which, by means of an edge region extending outward in a flange-like manner, is glued from above onto a raised sole rim. This edge region is connected to the upper of the shoe by a seam. Such a shoe, which has the visual appearance of a welted shoe, is relatively stable because the upper and the insole form a unit as a result of the seam between them. However, the requirement for an outwardly directed edge of the upper and of the insole mean this design cannot be used for sandals. Furthermore, on account of the necessary seam holes, the seam leads to a weakening of the strapping and of the edge of the insole, so that the seam holes can, in the event of great forces being applied, act like a perforation, and this may result in tearing of the strapping.
According to FIG. 2 of GB 2 034 168 A, a sandal with a shoe bottom serving as a midsole is known, on the underside of which an outsole is arranged and on the upper side of which an insole is arranged. The insole is of thicker design toward each lateral edge region and has, in the region of the strapping to be attached, one or more vertically upwardly projecting flange portion(s) in a raised sole rim. Arranged toward the outside on each of these portions is a groove.
The lower portion of the upper-material band or strapping of the sandal is inserted into the groove and, for example, sewn together with the flange portions. On account of this construction, the insole is made from a hard polyurethane material, so that the flange portions project upward rigidly. The support bed of the sandal is moreover not formed by the midsole but by the thicker insole, so that the latter cannot be compared with thin, for example 1 mm thick, and generally soft, leather insoles which are introduced in a fixed or loose manner or are used as a covering in dish-shaped deep foot support beds for orthopedic sandals.
OBJECT AND SOLUTION
The invention is based on the problem of designing a sandal of the type referred to in the introduction in such a manner that its strapping is connected to the shoe bottom as cost-effectively and yet at the same time as reliably as possible.
In addition, the object is to produce a shoe bottom of the type referred to in the introduction, on which the strapping of a sandal can be mounted in such a cost-effective and reliable manner.
According to the invention, this problem is solved in a sandal of the type referred to in the introduction by virtue of the fact that the foot support bed is incorporated in the shoe bottom and consists of a dish-shaped footbed, with an upwardly extending sole rim which completely surrounds the footbed at the side, a simple thin cover sole is fastened as an insole on the shoe bottom, this insole has an edge region which, only to the right and the left at the side, projects freely upward beyond the sole rim of the shoe bottom and the footbed there, these edge regions each form an outer lateral fastening portion for the strapping or also for an outer portion which protrudes from the shoe bottom and likewise serves for fastening the strapping, fastening locations in the form of gaps being provided on the outside of the shoe bottom for the ends of the strapping of the sandal, the ends of the strapping are in each case guided into these gaps of the shoe bottom, and the strapping is glued together with the fastening portions of the edge regions or with the protruding portions.
Such a sandal appears very light because the shoe bottom does not have to project significantly outward beyond the location of the connection to the strapping. As the strapping is glued from the outside against the edge region of the insole, it is possible, by dimensioning the edge region sufficiently, to produce a large gluing surface suitable for the transmission of great forces, without in this way imparting a heavy appearance to the sandal. Furthermore, the gluing is stressed only by shearing forces, which in turn is advantageous in terms of its durability. As no seam is necessary for connecting the upper to the insole, no weakening is caused by seam holes.
The sandal has a particularly pleasing appearance as the shoe bottom designed as a dished sole with a footbed has a laterally raised sole rim around the entire circumference, and the strapping ends between this sole rim of the shoe bottom and the edge region of the insole.
In addition to the fastening portions on the projecting edge regions of the insole, fastening locations in the form of simple gaps are provided on the shoe bottom, into which the ends of the strapping can be guided in a suitable manner.
The location of the butt joint between the strapping and the shoe bottom is invisible if, according to claim 4, the sole rim overlaps the strapping with a lip on the outside of this strapping.
The invention allows various further embodiments. In particular, a portion protruding on both sides from the shoe bottom can additionally be provided, which portion reinforces the outer sides of the projecting edge regions of the insole, which sides serve as fastening portions.
According to a preferred embodiment, provision is alternatively made, according to claim 2, that the strapping of the upper-material band of the sandal is not glued directly against an edge region of the insole, which projects upwardly beyond the edge of the shoe bottom, but that a stabilizing layer extends laterally from the shoe bottom, which likewise has a portion which projects upwardly beyond the edge of the shoe bottom and on the outside of which that end of the strapping on the shoe-bottom side is likewise glued and on the inside of which the upwardly projecting edge region of the insole is glued.
According to claim 9, the stabilizing layer can consist of a woven fabric which is anchored in the shoe bottom.
In this way, a particularly stable connection of the strapping to the shoe bottom can be achieved, and the lateral upper-material band of the strapping can end essentially at the outer upper edge of the shoe bottom designed as a dished sole with a footbed.
In a shoe bottom designed according to claim 1 with a dish-shaped footbed, a foot-contoured curved shape of the footbed modeled on the anatomy of the foot and a corresponding shape, visible from the outside, of the upper edge of the dished sole can be designed.
According to claims 3 and 5, an outwardly opening recess is provided on the upper edge along the upper sole rim of the shoe bottom, in which recess the outer edge of that end of the upper-material band of the sandal strapping on the shoe-bottom side
Connolly Bove & Lodge & Hutz LLP
Stashick Anthony D.
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