DE19835302A1 - Stretch belt for different waist sizes and is comfortable and inexpensive - Google Patents

Abstract

The stretch material for an elastic belt (1) has at least one layer of leather or plastic and at least one further nonwoven layer. The belt has a body section (2) and a tongue with the holes for the buckle prong and a closure. The belt body (2) has an elastic upper (5) and lower (6) strip, bonded together. The outer sides of the belt (1) each are covered by a layer of plastics or leather. Also included is an Independent claim for an apparatus to stretch the strips, for an elastic belt (1), having a number of powered and/or idle deflection rollers against each other in a stretch system. The stretch material follows a serpentine path through the roller assembly, of at least five rollers. The strips are heated at the deflection rollers. Powered unwinding and winding rollers for the strips are in front of and after the stretch mechanism. Preferred Features: An additional nonwoven layer, between the upper and lower stretch strips (5,6), is bonded to them. The belt tongue is of a non-shear material, bonded to the body (2) of the belt. The second belt layers (7,8) have a weight of \-80 g/m<2> and pref. 110-130 g/m<2> and pref. with a longitudinal and lateral shear strength of \-240 N. The layer (7,8) thickness is \-0.5 mm and pref. 0.65-1.0 mm. The longitudinal stretch to break is \-37% and the lateral stretch to break is \-50%. The first layer, for the outer surfaces, has a weight of \-400 g/m<2> and pref. 510-610 g/m<2>, in a thickness of \-0.4 mm and pref. 0.5-0.9 mm. The belt material has a weight of 680 \!50 g/m<2> and/or a thickness of 1.6\!0.2 mm. The material has a longitudinal stretch to break of \-150 N and/or a lateral stretch to break of \-200 N. The longitudinal stretch to break of the belt material is more than 40% and/or a lateral stretch to break of more than 50%. After the material has been produced, it is given an initial plastic longitudinal stretch of 0.5-10%. At least one insert is between the second layers (7,8), of a narrower width than the elastic strips (5,6), of a stretch plastics or leather material, a nonwoven or a compound material of leather/plastics/nonwoven. The second layers (7,8) are bonded to the insert, pref. by an adhesive. The width of the layers (7,8) is narrower than the strips (5,6) and/or the layer (7,8) height is less at the longitudinal edges of the belt body (2) than at the center. The belt tongue is of leather, fiber, plastics or woven material, or a combination of them. The tongue is pref. stitched to the belt body (2). Or the belt tongue is generally of metal, clamped to the belt body or in a force fit. The tongue can also be a one-piece section with the belt body (2), pref. as an extension of a shear-resistant insert between the upper and lower strips (5,6) and pref. of plastics, or it is an extension of a plastics layer bonded to the exterior of the belt. The upper (5) and/or lower (6) strips or the belt body (2) have an initial longitudinal plastic stretch of 0.5-10.0%.

Description

The invention relates to an elastic belt, with a belt body, with a belt telspitze with pin holes and with a clasp, the belt body an elastic upper strips made of plastic or leather and an elastic underside fen made of a plastic or leather.

Elastic belts have the advantage over fixed belts that they attach themselves to under adjust different waist sizes easily. A belt that is fixed in length can be annoying, for example if the stomach is in the sitting position at the desk or in the Car is squeezed. With such a compression, as well as with tension in the abdominal muscles, especially the abdominal circumference enlarge by a few centimeters for larger waist sizes.

An elastic belt of the type mentioned at the outset is, for example, from DE 41 23 411 C2 known. The well-known elastic belt has an upper cover strip and stretch a bottom strip from a soft plastic or from elastic leather, with both the cover strip and the bottom strip on one side are each provided with a layer of felt. Between the cover strip and the There is an elastic band underneath the inlay. The cover strip and the Bottom strips are not provided in this known elastic belt to absorb the longitudinal forces that strain the belt, but only serve to maintain a good appearance of the belt and even stretching of the elastic band, which is used to actually absorb the longitudinal forces fit.

The felt layer is used in the known elastic belt that edges and Irregularities in the surface of the elastic band or possible Do not mark traces of connection materials on the surface of the belt. In addition, the well-known belt retains a pleasant feel thanks to the layers of felt Cross-section grip and softness, even if the elastic band and / or the cover strips should become stiffer in the cold. Finally, the felt layers are meant to do this serve uneven stretching and surface tension between the elasti to compensate for the band and the top and bottom strips and warping in to avoid the surface. The felt layers have a buffer function.  

The well-known belt is characterized by the elastic band and thus associated restoring force due to good wearing properties. However, that's ela tical band comparatively expensive, which is reflected in an increased price of the well-known elastic belt. Furthermore, the elastic band can only difficult to insert as an insert in the belt, which complicates the production.

The object of the invention is to provide an elastic belt of the type mentioned To make available that as simple as possible and simple and cost-effective is inexpensive to manufacture.

The previously derived object is in the embodiment specified in claim 1 tion form according to the invention solved in that the top strip and the bottom layer fen on their mutually facing sides each with at least one layer of egg nem are connected. In the inventions provided in claim 4 embodiment according to the invention, in which the belt is also a belt body, has a belt tip with pin holes and a clasp, the belt body an elastic top strip made of plastic or leather and an elastic one Having sub-strips made of a plastic or leather, it is provided that between the top and bottom strips only a layer of a non-woven fabric seen directly with both the top and bottom stripes fen is connected.

Surprisingly, it has been found that the use of the aforementioned layer structure sufficient elasticity and provision of the he belt according to the invention can be ensured without an elastic rubber band Provision purposes would be required. As a result, the invention Belts only have a three or four layer structure, which is not only easier is to produce, but also has a cost-effective effect. Beyond that the thickness of the belt is also correspondingly small.

Basically, it is possible that the two layers of nonwoven fabric in the Pa provided claim 1 embodiment on their facing Be ten directly connected, preferably glued. For aesthetic reasons  For reasons, it is also possible that at least one insert between the layers smaller width than the width of the strips is introduced. The deposit can be made Plastic or leather, a nonwoven or a composite material made of plastic or leather and a nonwoven fabric. Under no circumstances does the deposit consist of an elastic rubber band. The layers are preferably fixed to the insert bound. Conveniently, the insert should be used when using plastic or Le which consist of the same material as the top and bottom strips consist. If a nonwoven is used as an insert, the same nonwoven should be used be used, which is also used for the layers.

The above embodiment relates to the pre-aesthetic reasons Hene crowning of the belt, both in the embodiment according to patent Claim 1 as well as in the embodiment according to claim 4 can be realized that the width of the layers or the one layer is smaller than the width of the stripes. Here is the respective position on its two longitudinal edges shortened so that the thickness of the belt in the sewn state on the longitudinal edges is less than in the central area of the belt.

In the belt according to the invention, the nonwoven plays in conjunction with the elasti plastic or elastic leather play a decisive role. The nonwoven he First of all, it fills the functions and offers the same ones Advantages that the felt in the known belt fulfills or offers, namely the Carrier function of the top or bottom strip and the improvement of the grip and softness of the belt. In contrast to the felt, the nonwoven has a very good strong restoring force so that it is in again after a corresponding load withdraws from its original state when the load subsides. Such property There is no felt material in terms of the provision, although it does both felt materials and nonwovens are textile composites. Open Obviously, the advantage of the fleece over the felt results from the fact that a fleece by intertwining and / or cohesive and / or adhesive connection of textile fa is produced and this results in very good flexible properties. With felt, on the other hand, there is a stronger consolidation of the fibers, so that the back actuating forces are very low. This means that when using felt layers instead of  Fleece layers in connection with the elastic top and bottom stripes invent advantages not achieved.

Another, unexpected advantage of the combination of elasti according to the invention top and bottom strips in conjunction with a nonwoven fabric is that the thorn holes of the belt in the area of the belt tip under appropriate load of the belt does not pull out, which when using, for example, only an elastic Plastic for the top and bottom strips or in connection with a felt cannot be guaranteed. The layer structure according to the invention thus represents a simultaneous reinforcement of the belt tip in the pinhole area, so that the The risk of tearing out the pin holes is reduced.

In a preferred embodiment of the invention, it is provided that the nonwoven fabric around a needle punch and in particular a polyester needle punch delt. According to the applicant's investigations, such a fleece has the best backing positioning properties in connection with the elastic material of the upper and lower streaking.

In addition to the right choice of material, the quantity of the nonwoven also plays a crucial role in ensuring the desired properties, such as softness of the belt, restoring force and non-tearing of the pin holes. In tests, it has been found that the best properties can be achieved if the basis weight of the layer of the nonwoven is greater than 80 g / m ² , preferably between 110 and 130 g / m ² , while the thickness of the layer of the nonwoven is greater than 0 , 5 mm, is preferably between 0.65 and 1 mm. With such a material with the above-mentioned basis weight and the above-mentioned thickness, a longitudinal tensile strength of greater than 340 N and a transverse tensile strength of more than 330 N can be achieved solely for the position of the nonwoven, while an elongation at break in the longitudinal direction of 47%, one Elongation at break of 60% can be achieved.

In an alternative embodiment of the present invention, in which the elastic belt also with a belt body, with a belt tip with pin holes and is provided with a clasp, it is provided that the belt body only from an elastic top strip made of plastic or an elastic top  strips and an elastic bottom strip each made of a plastic and that the belt tip is made of a non-tearable material and is firmly attached to the belt tel body is connected. In this alternative according to the invention there is the Gür only one or two stripes. The belt designed in this way body generally ensures sufficient restoring force around the belt to be used as an elastic belt. What is problematic is what above It has already been pointed out that the pinhole area is only made of plastic existing belts are subject to the risk of tearing. To rule this out This belt according to the invention has a belt tip, which is preferably made of egg a material other than the belt body, namely a non-tearable mate rial exists.

The belt tip can consist of a leather, a fiber, a plastic, a fabric bematerial or a composite layer material of at least two of the previously ge named materials exist. This creates a firm connection with the belt body preferably achieved by sewing the belt tip to the belt body is. Otherwise, it is also possible that the belt tip at least substantially Chen is made of metal. In this case, sewing would be difficult. For this reason, it makes sense to open the belt tip on the belt body clamp and / or positively connect to this.

In another embodiment, the same for the two he mentioned alternatives according to the invention may apply, the belt tip is integral with the Belt body formed, then between the cover strip and the top layer fen a tear-resistant insert, preferably made of plastic, in the area of the belt tip is provided. However, it can also be applied on the outside, preferably on sewn support can be provided on one or both sides.

For the top strip and / or the bottom strip and / or the elastic insert especially chrome-tanned leather, so-called nappa leather, can be used. When using a plastic it lends itself to a soft polyurethane art fabric or a soft PVC plastic. In any case, the waiter strip, the bottom strip and possibly the insert are made of the same material,  so that the belt does not get under when stretched on its front and back different stresses, which could lead to the formation of wrinkles.

Good resilience and strength properties are achieved when using a plastic as the elastic material of the top strip, the bottom strip and the insert when the basis weight of the plastic is greater than 400 g / m ² , preferably between 510 and 610 g / m ² , while the thickness of the strips should be greater than 0.7 mm, preferably between 0.5 and 0.9 mm. In conjunction with a nonwoven layer, a longitudinal tensile strength greater than 200 is achieved with a composite material consisting of a white PVC plastic and a polyester needle punch with a basis weight of 680 ± 50 g / m ² and a thickness between 1.6 ± 0.2 mm N and a transverse tear force greater than 250 N is reached. The elongation at break of this material is greater than 50%, while the elongation at break is greater than 60%.

Embodiments of the invention are described below with reference to the drawing described in more detail.

It shows

Fig. 1 is a cross-sectional view of a first embodiment of an elastic belt OF INVENTION to the invention,

Fig. 2 is a cross-sectional view of a second embodiment of an elastic belt OF INVENTION to the invention,

Fig. 3 is a plan view of a part of a third embodiment of an elastic belt OF INVENTION to the invention,

Fig. 4 is a cross sectional view of a fourth embodiment of an elastic belt OF INVENTION to the invention,

Fig. 5 is a cross sectional view of a fifth embodiment of an elastic belt OF INVENTION to the invention,

Fig. 6 is a cross-sectional view of a sixth embodiment of an elastic belt OF INVENTION to the invention,

Fig. 7 is a cross-sectional view of a seventh embodiment of an inventive belt in the not yet completed state and

FIG. 8 shows a cross-sectional view of the belt according to the invention from FIG. 7 in the finished state.

An elastic belt 1 is shown in each of the figures. In all forms of execution, the elastic belt 1 has a belt body 2 , a belt tip 3 with pin holes 4 and a clasp, not shown. The belt body 2 has, in the embodiments shown in FIGS . 1 and 2 and 4 to 8, an elastic top strip 5 extending over the belt length and an elastic bottom strip 6 which also extends over the belt length. Both the top strip 5 and the bottom strip 6 are made of a soft PVC.

It is essential in the embodiment shown in Fig. 1 that on one side of the top strip 5 and on one side of the bottom strip 6 each have a layer 7 , 8 extending from the length of the belt made of a nonwoven fabric. The layers 7 , 8 are fixed ver with the respective sides of the strips 5 , 6 connected. The two layers 7 , 8 are on their mutually facing sides immediately bar, ie directly connected to each other, namely glued, and without another between the two layers 7 , 8 or just between the upper strip 5 and the lower strip 6 of the belt body elastic means is provided from a non-fleece or the material of the strips 5 , 6 for restoring purposes.

In the embodiment shown in FIG. 2, between the top strip 5 and the bottom strip 6 there is only one layer 9 made of a nonwoven fabric and also extending over the belt length. The layer 9 is bonded directly, ie directly, both to the upper strip 5 and to the lower strip 6 .

The nonwoven fabric in the embodiments according to FIGS. 1 and 2 is a polyester needle-punched nonwoven. In principle, it is of course also possible that the needle fleece does not have predominantly polyester, but predominantly polypropylene or viscose fibers.

In the embodiment shown in Fig. 1, the thickness of the belt body is 3.2 ± 0.4 mm, the weight per unit area is 1360 ± 100 g / m ² .

In the embodiment shown in FIG. 3, the thickness of the layer 9 is approximately the same as the thickness of each of the strips 5 , 6 . In all embodiments, the Gür telkörper 2 is sewn in the longitudinal direction at its longitudinal edges and has accordingly seams 10 , 11 . However, the belt body 2 in the embodiment shown in FIG. 3 only consists of a single strip, which is preferably referred to as the upper strip 5 . The top strip 5 is made of a soft PVC plastic. In addition, in this embodiment, the belt tip 3 cross-sewn to the belt body 2 is made of a non-tearable material, before lying out of leather. In the embodiments of FIGS. 1 and 2, the belt tip 3 is formed by the upper strip 5 and the lower strip 6 and the layers 7 , 8 and 9 , respectively.

FIGS. 4 to 8 show further embodiments of the belt 1 of the invention. In the embodiments shown in FIGS. 4 to 6, an insert 12 is provided between the two layers 7 , 8 , the width b of which is less than the width of the individual strips 5 , 6 . In the embodiment shown in FIG. 4, the insert 12 is made of the same composite material as the top strip 5 or the bottom strip 6 with the respectively connected layer 7 , 8 made of nonwoven. This embodiment is particularly useful since both the top strip 5 and the bottom strip 6 and the insert 12 can be produced or cut from a starting material. This simplifies production.

In the embodiment according to FIG. 5, the insert 12 consists of the same plastic as the strips 5 , 6 , while in the embodiment according to FIG. 6 the insert 12 consists of the same non-woven material as the layers 7 , 8 . In all embodiments, the insert 12 is firmly connected to the layers 7 , 8 via an adhesive connection.

In the embodiment according to FIGS. 7 and 8, the width of the two layers 7 , 8 has been reduced at the longitudinal edges relative to the width of the strips 5 , 6 . In terms of production, this can be done by cutting the strips 5 , 6 , to which the layers 7 , 8 are applied, without further ado, by means of a corresponding removal device or producing a knife. By removing the layers 7 , 8 on the longitudinal edges, the belt body 2 becomes thicker in the central area compared to its edge area. A deposit as in the embodiments of FIGS. 4 to 6 is not required here. The reduction in the width of the layers 7 , 8 by subsequent removal on the sides can be achieved not only in the embodiment shown with two layers, but also in principle when only one layer 9 is used , as is provided in the embodiment according to FIG. 2 .

It should also be pointed out that the layers 7 , 8 in the embodiment shown in FIG. 7 do not have to run out in the form of bevels, as is shown. Other shapes are also possible. It is ultimately only important that the height of the layers 7 , 8 is reduced towards the longitudinal edge, so that the desired bombing results in the central region of the belt body 2 . In principle, it is also possible that nonwoven is still present in the area of the longitudinal edges, but the height of the nonwoven is then considerably lower than in the central area of the belt body.

Claims (15)

1. Elastic belt ( 1 ), with a belt body ( 2 ), with a belt tip ( 3 ) with pin holes ( 4 ) and with a clasp, the belt body ( 2 ) having an elastic top strip ( 5 ) made of a plastic or leather and one has elastic lower strips ( 6 ) made of a plastic or leather, characterized in that the upper strips ( 5 ) and the lower strips ( 6 ) are each connected on their mutually facing sides with at least one layer ( 7 , 8 ) made of a nonwoven fabric. 2. Elastic belt according to claim 1, characterized in that the layers ( 7 , 8 ) are directly connected to each other on their mutually facing sides. 3. Elastic belt according to claim 1, characterized in that between the layers ( 7 , 8 ) at least one insert ( 12 ) of smaller width (b) than the width of the strips, ( 5 , 6 ) is provided, which consists of an elastic Plastic or elastic leather, a nonwoven or a composite material made of an elastic plastic or elastic leather and a nonwoven and that the layers ( 7 , 8 ) are firmly connected to the insert ( 12 ). 4. Elastic belt ( 1 ) with a belt body ( 2 ), with a belt tip ( 3 ) with pin holes ( 4 ) and a clasp, the belt body ( 2 ) having an elastic top strip ( 5 ) made of plastic or leather and an elastic bottom strip ( 6 ) made of a plastic or leather, characterized in that between the upper strip ( 5 ) and the lower strip ( 6 ) only one layer ( 9 ) of egg nem non-woven fabric is provided, which directly with both the upper strip ( 5 ) is also connected to the lower strip ( 6 ). 5. Elastic belt according to one of the preceding claims, characterized in that the width of the layer ( 7 , 8 ; 9 ) is less than the width of the strip ( 5 , 6 ) and / or that the height of the layer ( 7 , 8 ; 9 ) in the area of the longitudinal edge of the belt body ( 2 ) is less than in the central area of the belt body ( 2 ). 6. Elastic belt according to one of the preceding claims, characterized records that the nonwoven fabric is a needle punch, in particular a polyester needle punch.   7. Elastic belt according to one of the preceding claims, characterized in that the basis weight of the layer ( 7 , 8 ; 9 ) of the nonwoven is greater than 80 g / m ² , preferably between 110 and 130 g / m ² . 8. Elastic belt according to one of the preceding claims, characterized in that the thickness of the layer ( 7 , 8 ; 9 ) of the nonwoven is greater than 0.5 mm, preferably between 0.65 and 1.0 mm. 9. Elastic belt ( 1 ) with a belt body ( 2 ), with a belt tip ( 3 ) with pin holes ( 4 ) and with a clasp, characterized in that the Gürtelkör by ( 2 ) only from an elastic top strip ( 5 ) from one Plastic or an elastic top strip ( 5 ) and an elastic bottom strip ( 6 ) each made of plastic and that the belt tip ( 3 ) consists of a non-tearable material and is firmly connected to the belt body ( 2 ). 10. Elastic belt according to claim 9, characterized in that the belt tip ( 3 ) consists of a leather, a fiber, a plastic or a fabric material or a composite layer material made of at least two of the aforementioned materials and that, preferably, the belt tip ( 3 ) is sewn to the belt body ( 2 ). 11. Elastic belt according to claim 9, characterized in that the belt tip ( 3 ) consists at least essentially of metal and on the belt body ( 2 ) is clamped or positively connected to it. 12. Elastic belt according to one of the preceding claims, characterized in that the belt tip ( 3 ) is formed in one piece with the belt body ( 2 ) and that, preferably, between the top strip ( 5 ) and the bottom strip ( 6 ) a tear-resistant insert, preferably made of plastic, or on the outside on the belt tip ( 3 ) a support, preferably made of plastic, is provided. 13. Elastic belt according to one of the preceding claims, characterized in that the top strip ( 5 ) and / or the bottom strip ( 6 ) and / or the insert consist / consists of a soft polyurethane or a soft PVC and that, preferably, the Top strip ( 5 ) and the bottom strip ( 6 ) consist of the same material. 14. Elastic belt according to one of the preceding claims, characterized in that the weight per unit area of the top strip ( 5 ) and / or the bottom strip ( 6 ) (each) is greater than 400 g / m ² , preferably between 510 and 610 g / m ² lies. 15. Elastic belt according to one of the preceding claims, characterized in that the thickness of the top strip ( 5 ) and / or the bottom strip ( 6 ) (each) is greater than 0.4 mm, preferably between 0.5 and 0.9 mm lies.