EP3165110A1 - Overshoe - Google Patents

Abstract

The present invention relates to an overshoe for the protection of floor coverings, in particular bowling and / or bowling alleys, comprising a one-piece main body (2), a front sole (6) and a separate and separated from this rear sole (4), wherein the base body of a elastic or plastic composite and having a bottom surface to which the front sole is attached, the back sole being secured to or formed by the base body, the base body having a front first end (24) and a second rear end (24) spaced therefrom. 26), wherein the distance between the first and second end in the ground state corresponds to a mean first length, wherein the base body has a bottom side opposite manhole with a longitudinal extent, the longitudinal extent in the ground state has an average second length, being opposite of the Einstiegsöff extending in the ground state, the first length is less than twice as large as the second length, wherein the overshoe of a ground state reversible in at least a first entry state is feasible, the distance between the first and the second end in the first entry state corresponding to a middle third length which is greater than the first length, and / or wherein the overshoe from a ground state is reversibly convertible into at least a second entry state, wherein the distance between the first and second end in the second entry state of mean fourth length which is smaller than the first length, in particular wherein the longitudinal extent of the manhole in the second entry state has a mean fifth length which is greater than the second length.

Description

The invention relates to an overshoe for the protection of sensitive floor coverings, in particular a bowling overshoe.

Overshoes are well known for various purposes. They are regularly used to protect floors from contamination with dirt, bacteria and / or dust particles. For example, overshoes are used in hospitals or other areas contaminated with dangerous pathogens. Also, overshoes are used in clean rooms, for example in the production of semiconductors.

The DE 3711005 A1 relates to an overshoe having a one-piece elastic sole portion. Only fastening straps are used to fix the overshoe to the foot.

The DE 203 10 130 Ul refers to an overshoe with an outsole made of non-slip material.

The US 4,497 relates to an overshoe, which is constructed in three parts and wherein the middle part consists of a stretchable material or metal springs.

Furthermore, overshoes are used to protect sensitive floor coverings. This can be, for example, the parquet floor in a private household. However, it can also be the floor of a sports or gym.

Especially in bowling halls there is also a need for overshoes. The floor coverings, which are used by athletes and also for the career of the balls, usually consist of painted wood or plastic. Smallest bumps are absolutely to be avoided. Timber tracks must be sanded regularly and repainted. The start-up area, where players move to perform their throw, is subject to special stress. In order to ensure adequate protection of the track, usually only special bowling shoes are allowed. Conventional shoes, such as those used outdoors (street shoes), are therefore usually not approved. For players who do not bring their own bowling shoes, it is usually possible to rent bowling shoes. However, this entails considerable hygienic and olfactory disadvantages.

To be able to use conventional street shoes, therefore, bowling overshoes are needed.

In the US 3,609,888 is described a bowling overshoe, with a three-piece constructed sole is provided. The middle part of the sole is formed by an elastic part. The sole is attached to the shoe by straps.

The US Pat. No. 6,405,459 B1 describes a substantially closed plastic bowling shoe, such as neoprene, which is stretchable and has sole portions secured to the underside.

The US 2013/0160330 A1 describes a bowling overshoe having a non-stretchable sole and a stretchable upper which secures the shoe.

However, the overshoes known from the prior art are subject to disadvantages. In particular, fixing elements, such as straps or hook-and-loop fasteners, are often necessary, which must be closed separately. Furthermore, the washability of the overshoes is usually unsatisfactory. It should also be noted that the hold of the Shoe in the overshoe and the overshoe on the ground when bowling is security relevant and needs improvement.

A particular problem is to provide a quick and easy-to-dress overshoe, which is also the burdens of the bowling sports fair. Bowling sports require abrupt braking, gliding, and balanced movement. An overshoe, which dissolves when braking from the shoe, represents a significant security risk.

The object of the invention is therefore to overcome the disadvantages of the prior art. In particular, it is the object of the invention to provide sturdy overshoes, which are easy to clean, especially wet clean on the inside. It is also an object of the present invention to provide overshoes, which can be covered very quickly. A particular concern of the present invention is to provide overshoes that provide the shoes with a secure, especially non-slip, support within the Überzichschuhe. Furthermore, it is an object of the invention to provide an overshoe, which can be combined with different shoe sizes, without the secure grip is compromised. It is also an object to provide an overshoe, by which the shoes themselves are not damaged, in particular by which the surfaces of the shoes are spared.

The object is achieved by an overshoe for the protection of floor coverings, comprising a one-piece basic body, a front sole and a distance from this and separate rear sole; wherein the base body is made of or comprises a resilient plastic composition and has a bottom surface to which the front sole is attached; wherein the backsole is attached to or formed by the base body; wherein the overshoe of a basic state reversible in at least a first and / or second entry state überfuhrbar; the base body having a front first end and a second rear end spaced therefrom, wherein the first to second end spacing in the ground state corresponds to a mean first length; wherein the base body has a bottom opening opposite the manhole with a longitudinal extent, in particular which extends from the direction of the first end in the direction of the second end, wherein the longitudinal extent in the ground state has an average second length; with opposite of the manhole a flexible, in particular stretchable and / or bendable, extending region of the underside of the base body; wherein in the ground state the first length is less than twice the size of the second length, in particular wherein the second length is at least 50% of the first length; wherein the distance between first and second ends in the first entry state corresponds to a mean third length that is greater than the first length; wherein the distance between the first and second end in the second entry state corresponds to a mean fourth length which is smaller than the first length, in particular wherein the longitudinal extension of the access opening in the first and / or second entry state has a mean fifth length which is greater than the second Length.

It has surprisingly been found that the above-described, in particular elastic, stretchable and / or kinkable, basic body can be combined with a comparatively large manhole without the secure hold of the shoes is compromised. The overshoe described above allows a particularly comfortable on and take off the overshoe.

According to the invention, it is preferred if the overshoe has a handle at the second end, in particular in the form of a tab and / or loop, which is preferably fastened to the main body. This has the advantage that a user can pull on the handle if he wants to stretch or buckle the overshoe for the purpose of inserting a shoe. It has surprisingly been found that such a tab and / or loop can be fixed sufficiently firmly to the, in particular elastic, base body.

It should be noted that the first and second end of the base body preferably corresponds to the two maximum spaced points of the base body. The mean first length is therefore preferably the maximum longitudinal extension of the base body in the ground state. Anlog the middle second length is preferably the maximum average longitudinal extent of the manhole in the ground state. It should also be noted that the following features and properties are preferably based on the characteristics of the overshoe in the ground state, unless otherwise stated. Also, it is preferably provided that the ground state is the state in which the overshoe is not filled with a shoe and also no external force is applied to the overshoe.

The manhole in the sense of the present invention is an opening in the overshoe, through which a shoe can be inserted into the overshoe.

In an expedient embodiment, it is provided that the access opening has a, in particular peripheral edge, wherein the edge, in particular on both sides respectively, opposite of the flexible elastic region a substantially minimum distance from the ground, in a generic resting of the front and rear sole the ground, has. In this case, it is provided in a particularly preferred embodiment that said minimum distance is at least 0.5 cm, in particular at least 1.0 cm, preferably at least 1.5 cm. Furthermore, it is preferred if the minimum distance is a maximum of 7.0 cm, in particular a maximum of 5.0 cm, preferably a maximum of 4.0 cm. The minimum distance is measured from the edge to the ground. It has been found to be advantageous if the overshoe has an edge which is high enough round around to prevent dirt from escaping from the overshoe and at the same time is low enough so that stretching and in particular buckling is not significantly impeded.

Basically, it should be noted that elements which have a height and distances which are determined in relation to the ground, be determined such that the shoe rests in the ground state according to its generic use on a smooth flat bottom and the distance between the element and the ground orthogonal to the ground. Here are front and rear sole usually in contact with the ground.

In a suitable embodiment, the mean second length is at least 55%, in particular at least 65%, preferably at least 70% of the mean first length. It has been shown that the larger the opening, the easier it is for the overshoe to slip over the shoe. Furthermore, it is preferred if the second length is a maximum of 95%, in particular a maximum of 90%, preferably a maximum of 85%, of the first length. It has been shown that it may adversely affect the stability of the overshoe, if the second length is chosen to be too long in relation to the first length.

Furthermore, it has proven to be advantageous if the elastic plastic composition comprises or represents a synthetic or natural rubber and / or an elastomer. In an expedient embodiment, the basic body consists predominantly (> 50% by weight) of synthetic or natural rubber. The basic body preferably consists of at least 80% by weight, in particular at least 90% by weight, of synthetic or natural rubber. It is particularly preferred if the main body essentially consists entirely of synthetic or natural rubber. Essentially complete, does not exclude that the basic body may contain additives and / or impurities in a proportion of less than 5% by weight. It has been found that synthetic or natural rubber is particularly suitable for the present design of the overshoe. In particular, it is sufficiently elastic to allow overtopping of the overshoe on the shoe while ensuring a secure fit despite the comparatively large manhole.

In an expedient embodiment, it is provided that the base body consists of a one-piece plastic body, in particular a plastic body, which has an average wall thickness of at least 2 mm, in particular at least 3 mm, preferably at least 5 mm, and / or at least in a partial area a middle Wall thickness of at least 2 mm, in particular at least 3 mm, preferably at least 5 mm. It has been found that the wall thickness has a significant impact on the safety of the hold of a shoe in the overshoe. In this regard, the above values have been found to be optimal.

Preferably, it is provided that the flexible region of the underside is unclothed and / or formed by the surface of the, in particular one-piece, base body, in particular wherein the flexible region is bounded by the front sole and rear sole on opposite sides, preferably so that the flexible region the front sole and rear sole separates. In this case, it is particularly preferred if the flexible area is concavely curved, so that contact of the flexible area to the floor, in the case of a generic resting of the front and rear sole on the floor, is prevented. It has been shown that a protection of the bottom in the flexible area is not mandatory. This greatly simplifies the construction of the overshoe.

Further, it is advantageous if the overshoe is lower at the first end than at the second end. In particular, it is preferred if the, in particular curved, edge of the manhole has its highest area (measured from the ground, in the generic resting of the overshoe on the front and rear sole) in the direction of the rear end, in particular at the rear end.

In one embodiment, it is provided that the front sole consists of or comprises leather and / or Teflon and / or comprises a leather layer and / or Teflon layer. Also is it is provided in a further embodiment that the rear sole consists of or comprises rubber and / or rubber and / or comprises a rubber and / or rubber layer. It has been shown that these materials can be combined particularly well with the basic body.

Furthermore, it is provided in one embodiment that the friction coefficient of the rear sole on a smooth steel surface and / or the surface roughness of the rear sole are greater than the analogous determined friction coefficient or the surface roughness of the front sole. For safety reasons, especially a high slip resistance of the rear sole is of relevance, while the front sole allows sliding in bowling.

It is also preferable if the base body has an inner space with an inner side which is substantially smooth and / or has a friction coefficient on a smooth steel surface and / or a surface roughness which is less than an outer side of the main body opposite the inner side.

In a further embodiment, it is provided that the inner space in the region of the inner side, which is not opposite the underside, is smooth and / or has a coefficient of friction on a smooth steel surface and / or a surface roughness which is less than an outer side opposite the inner side the basic corpus.

It is also advantageous if the interior is structured at least in sections in the area opposite the underside, in particular has knobs and / or grooves.

It can also be inventively provided that the rear sole, in particular in contrast to the front sole, is structured and / or has recesses, wherein the recesses are preferably at least 1 mm deep. This increases the frictional resistance in a safety-relevant area for the slip resistance.

In a suitable embodiment, it is provided that the wall thickness of the base body at the edge, in particular at the edge of the manhole, is smaller than at the rear end, at the front end and / or at the bottom. Surprisingly, it has been shown that an inhomogeneous wall thickness, as described above, significantly improves the hold of the shoe in the overshoe.

Further, it is advantageous if the basic body engages around the shoe at the front end, wherein the encompassing portion is over a maximum of 40%, in particular a maximum of 30%. preferably at most 25%. the first length and over at least 5%, in particular at least 10%, preferably at least 15%, the first length extends. This allows a particularly simple coating of the overshoe, while still ensuring a sufficiently secure hold of the shoe in the overshoe. Furthermore, the shoes are not damaged, which is often the case with conventional mounting options.

By Überzuschschuh invention a surprisingly simple construction is used to ensure a secure fit of the shoe. The one-piece basic body allows a particularly simple cleaning of the overshoe. A quick on and off of the overshoe is made possible without the safety is adversely affected. The selected design of the underside and the front and rear sole ensures a high level of slip resistance and optimum use as a bowling shoe. In particular, the stability is improved, which is often problematic in overshoes.

Further features and advantages of the invention will become apparent from the following description in which embodiments of the invention are illustrated by way of example with reference to schematic drawings, without thereby limiting the invention.

Figur 1:

eine schematische Seitenansicht eines Schuhs, welcher von einer ersten Ausführungsform eines erfindungsgemäßen Überziehschuhs umschlossen wird;

Figur 2:

eine schematische Seitenansicht der ersten Ausführungsform eines erfindungsgemäßen Überziehschuhs;

Figur 3:

eine schematische Seitenansicht einer zweiten Ausführungsform eines erfindungsgemäßen Überziehschuhs;

Figur 4:

eine schematische Seitenansicht einer Ausführungsform der Unterseite eines erfindungsgemäßen Überziehschuhs;

Figur 5:

eine schematische Seitenansicht der ersten Ausführungsform eines erfindungsgemäßen Überziehschuhs im Normalzustand;

Figur 6:

eine schematische Seitenansicht der ersten Ausführungsform eines erfindungsgemäßen Überziehschuhs im ersten Einstiegszustand;

Figur 7:

eine schematische Seitenansicht der ersten Ausführungsform eines erfindungsgemäßen Überziehschuhs im zweiten Einstiegszustand;

Showing:

FIG. 1:

a schematic side view of a shoe, which is enclosed by a first embodiment of a Überziehschuhs invention;

FIG. 2:

a schematic side view of the first embodiment of a Überziehschuhs invention;

FIG. 3:

a schematic side view of a second embodiment of a Überziehschuhs invention;

FIG. 4:

a schematic side view of an embodiment of the underside of a Überziehschuhs invention;

FIG. 5:

a schematic side view of the first embodiment of an overshoe according to the invention in the normal state;

FIG. 6:

a schematic side view of the first embodiment of a Überziehschuhs invention in the first state of entry;

FIG. 7:

a schematic side view of the first embodiment of a Überziehschuhs invention in the second state of entry;

FIG. 1 shows a shoe 16 with an opening 18 for a foot, the shoe 16 is arranged in a first embodiment of the overshoe according to the invention. The overshoe for protecting floor coverings in bowling, comprises a one-piece main body 2, a front sole 6 and a separate and separate from this rear sole 4, wherein the front sole 6 and the rear sole 4 are fixed to the main body 2. The base body surrounds the shoe at the front end with a encompassing portion 10. A handle in the form of a tab 14 is attached to the rear portion 18 of the shoe. The peripheral edge of the manhole has a substantially minimum distance from the ground, in a generic resting the front and rear sole on the floor (not shown), in a region 12 of the opposite of the flexible, in particular stretchable and / or bendable, Area 8 is the bottom of the body.

FIG. 2 shows the first embodiment of the overshoe according to the invention without the shoe of FIG. 1 , The overshoe for protecting floor coverings comprises a one-piece base body 2, a front sole 6 and a rear sole 4 spaced therefrom and separate, the front sole 6 and the rear sole 4 being fastened to the main body 2. The peripheral edge further comprises two opposite side portions 20 and 22, each of the side portions having two opposite minimums 12, 13 at which the distance to the floor (not shown) is minimal. A handle in the form of a tab 14 is attached to the rear part 18 of the shoe.

FIG. 3 shows a second embodiment of the overshoe according to the invention. The embodiment is characterized in that the side portions 20, 22 of the peripheral edge have a small distance from the ground over a wide area (not shown). The flexible area 8 of the bottom is also shown. The overshoe for protecting floor coverings comprises a one-piece basic body 2, a front sole 6 and a rear sole 4 spaced from and separate from it, the rear sole 4 being integral Part of the base body 2 and the front sole 6 is attached to the base body 2.

FIG. 4 shows the underside of the main body 2 of an embodiment. There are the rear sole 4, the front sole 6 and the flexible portion 8, which is bounded on both sides by the rear sole 4 and the front sole 6 reproduced.

FIG. 5 shows the first embodiment of the overshoe according to the invention in the ground state, wherein no force is applied to the overshoe. The distance between the first end 24 and the second end 26 corresponds in this basic state to the mean first length L1. The base body has a bottom opening opposite the access opening with a longitudinal extent, which extends from the direction of the first end 24 in the direction of the second end 26, wherein the longitudinal extent in the ground state has a mean second length L2. The second length L2 corresponds approximately to 80% of the first length L1.

FIG. 6 shows the first embodiment of the overshoe according to the invention in the first state of entry. The shoe is stretched in relation to the ground state. Here, the distance between the first and second ends 24, 26 in the first entry state corresponds to a middle third length L3, which is greater than the first length L1 of the ground state FIG. 5 ,

FIG. 7 shows the first embodiment of the overshoe according to the invention in the second state of entry. The shoe is kinked or bent relative to the ground state. The distance between first and second ends 24, 26 in the second entry state corresponds to a mean fourth length L4 which is smaller than the first length L1 of the ground state, wherein the longitudinal extent of the access opening in the second entry state has a mean fifth length L5 which is greater than the second length L2 of the ground state FIG. 5 ,

The features of the invention disclosed in the preceding description, the claims and the drawings may be essential both individually and in any combination for the realization of the invention in its various embodiments.

Claims (15)

An overshoe for protecting floor coverings, comprising a one-piece base body, a front sole and a rear sole spaced and separated therefrom, the main body being made of or comprising an elastic plastic composition and having a lower surface to which the front sole is attached;
wherein the back sole is attached to or formed by the base body,
the base body having a front first end and a second rear end spaced therefrom, wherein the first to second end distance in the ground state corresponds to a middle first length,
wherein the base body has a bottom opening opposite the access opening with a longitudinal extent, in particular which extends from the direction of the first end in the direction of the second end, wherein the longitudinal extent in the ground state has an average second length,
wherein a flexible, in particular stretchable and / or bendable, region of the underside of the main body extends opposite to the manhole opening, wherein in the ground state the first length is less than twice the size of the second length,
wherein the overshoe is reversibly convertible from a ground state in at least a first initial state, wherein the distance between the first and second end in the first entry state corresponds to a middle third length which is greater than the first length, and / or
wherein the overshoe is reversibly convertible from a ground state into at least a second entry state,
wherein the distance between the first and second end in the second entry state corresponds to a mean fourth length which is smaller than the first length, in particular wherein the longitudinal extent of the entry opening in the second entry state has a mean fifth length which is greater than the second length. Overshoe according to claim 1, characterized in that the overshoe at the second end has a handle, in particular in the form of a tab and / or loop. Overshoe according to claim 1 or 2, characterized in that the manhole has a, in particular circumferential edge, wherein the edge opposite of the flexible, in particular stretchable and / or bendable, the underside of the base body a, in particular substantially minimal, distance to the ground, with a generic resting of the front and rear sole on the floor, has. Overshoe according to one of the preceding claims, characterized in that
the average second length is at least 55%, in particular at least 65%, preferably at least 70% of the mean first length. Overshoe according to one of the preceding claims, characterized in that
the elastic plastic composition comprises or represents a synthetic or natural rubber and / or an elastomer. Overshoe according to one of the preceding claims, characterized in that
the basic body consists of a one-piece plastic body, in particular a plastic body, which has an average wall thickness of at least 2 mm, in particular at least 3 mm, preferably at least 5 mm, or at least in a partial area an average wall thickness of at least 2 mm, in particular at least 3 mm, preferably at least 5 mm. Overshoe according to one of the preceding claims, characterized
that
the flexible, in particular stretchable and / or bendable, region of the underside of the base body is unsoldered and / or is formed by the surface of the, in particular one-piece, base body, in particular wherein the flexible, in particular stretchable and / or bendable, region of the underside of Base body is limited by the front sole and rear sole, preferably so that the flexible, in particular stretchable and / or bendable, area of the underside of the body separates the front sole and rear sole. Overshoe according to one of the preceding claims, characterized in that
the overshoe at the first end is lower than at the second end in a generic resting of the front and rear sole on the floor. Overshoe according to one of the preceding claims, characterized in that
the front sole comprises leather or / and Teflon or consists thereof and / or comprises a leather layer and / or Telfonschicht. Overshoe according to one of the preceding claims, characterized in that
the rear sole consists of or comprises rubber and / or rubber and / or comprises a rubber and / or rubber layer and / or that the rear sole, in particular in contrast to the front sole, is structured and / or has recesses, wherein the recesses preferably at least 1 mm deep. Overshoe according to one of the preceding claims, characterized in that
the friction coefficient on a smooth steel surface and / or the surface roughness of the rear sole is greater than the analogously determined friction coefficient or the surface roughness of the front sole. Overshoe according to one of the preceding claims, characterized in that
the base body has an inner space with an inner side which has substantially smooth and / or a friction coefficient on a smooth steel surface and / or a surface roughness which is smaller than an outer side of the main body opposite the inner side. Overshoe according to one of the preceding claims, characterized in that
the wall thickness of the base body at the edge, in particular at the edge of the manhole, is smaller than at the rear second end, at the front first end and / or at the bottom. Overshoe according to one of the preceding claims, characterized in that
the basic body is designed and arranged to encompass a shoe at the front end, the encompassing portion being over a maximum of 40%, in particular maximum 30%, preferably maximum 25% of the first length and at least 5%, in particular at least 10%, preferably at least 15% the first length extends. Use of the overshoe according to one of the preceding claims as a bowling overshoe or as a bowling alley overshoe.

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