Classifications

• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
  • A43B23/08—Heel stiffeners; Toe stiffeners
  • A43B23/081—Toe stiffeners
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
  • A43B17/16—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined with heel or toe caps
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
  • A43B13/16—Pieced soles
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B3/00—Footwear characterised by the shape or the use
  • A43B3/24—Collapsible or convertible

Definitions

• the invention relates to a protective shoe, which is designed, for example, as a work protection shoe or safety shoe.
• Protective shoes are generally known from the prior art due to obvious prior use. These protective shoes often have the disadvantage that recycling of their components is not possible or only possible to a limited extent.
• the protective shoes usually consist of a wide variety of materials or components, which are also connected to each other in different ways.
• the invention is based on the object of overcoming the disadvantages of the prior art.
• a protective shoe is to be created that is particularly sustainable and recyclable to an extremely high degree, preferably completely.
• a latching arrangement or latching connection allows, on the one hand, a secure, and in particular low-play/free, connection of individual components of the protective shoe and, on the other hand, a separation of the same from one another, which, for example, allows for simple, separate recycling of the components enabled.
• the same components or materials can be reprocessed, which allows the extraction of secondary materials. Material recycling is guaranteed. Repairing, customizing, for example in technical and/or optical terms, space-saving transport or space-saving storage of individual components of the protective shoe is possible.
• the locking connection allows a secure connection between the midsole and the shaft.
• it also enables a separation, in particular a reversible, in particular non-destructive, separation, of the midsole and the shaft from one another.
• the at least one first latching arrangement has at least one latching means arranged or formed on/in the shaft and at least one counter-latching means arranged or formed on/in the sole arrangement. These are preferably complementary to one another and preferably interact with one another in the locking connection, in particular in a positive connection. A reverse arrangement is alternatively possible.
• a latching connection in particular through the at least one first latching arrangement, can be present, for example, between two hard/solid bodies or between two soft bodies or between a hard/solid body and a soft body.
• the shaft at least adjacent to the midsole used, is (comparatively) hard/firm and/or the midsole is soft/yielding at least in some areas, advantageously overall.
• the midsole can be designed to be flexible.
• the midsole can be designed to be elastically deformable, in particular compressible.
• the midsole is able to be compressed when inserted, in particular when locked, and to expand or enlarge again when inserted, in particular in its longitudinal and/or width and/or thickness direction.
• the locking connection between the midsole and the upper if, in the inserted (expanded) state of the midsole, there is an at least partially positive connection and/or at least partially a non-positive connection between the midsole and the upper.
• the midsole in particular engages in the shaft at least in some areas.
• the shaft preferably forms an undercut for the midsole, at least in some areas. It is conveniently able to fix or retain the midsole, preferably releasably.
• a latching arrangement is understood to mean in particular an at least partially, in particular circumferential, positive connection and/or in particular an at least partially, in particular circumferential, non-positive connection.
• the at least one second latching arrangement preferably has at least one latching means arranged or formed on/in the shaft and at least one counter-latching means arranged or formed on/in the toe cap. These are preferably complementary to one another and preferably interact in the locking connection, especially in positive connection, with each other. A reverse arrangement is alternatively possible.
• the first and second latching arrangements can be independent of one another. They are primarily referred to as the “first” and “second” resting arrangement to distinguish between them. In particular, the term “second” latching arrangement should not necessarily imply the presence of a “first” latching arrangement. However, a shoe with both at least a first and at least a second latching arrangement is possible.
• the protective shoe is designed, for example, as a high shoe or as a boot. Alternatively, it is designed as a low shoe, for example. It is advisable if the protective shoe meets protection class SI, SIP, S2, S3, S4 or S5 when assembled. For example, it is at least partially waterproof. It is useful if the protective shoe is alternatively or additionally breathable at least in some areas.
• the shaft preferably forms an upper part of the protective shoe. It has a corresponding height according to the design of the protective shoe as a high shoe/boot or low shoe.
• the shaft comprises a front cap, tongue and/or rear cap. It is expedient if the shaft has or carries at least one closure means in order to hold it on the shoe carrier or to simplify putting on and/or taking off the protective shoe.
• the shaft has a lining or padding on the inside, at least in some areas.
• the shaft has an outer material that is completely closed or at least partially open.
• the sole arrangement preferably forms a lower part of the protective shoe. It has, for example, an insole, cover sole, insole, midsole and/or outsole. The sole arrangement is, for example, multi-layered or multi-part.
• the sole arrangement and the toe cap are, for example, connected to one another in one piece or in one piece. They are connected to one another in a detachable or inextricable manner. They can be designed in several parts. In particular, a plug connection can be formed between the toe flap and the sole arrangement.
• the at least one first latching arrangement according to dependent claim 2 is arranged, for example, in a toe, middle and/or heel area of the protective shoe.
• the training according to subclaim 3 leads to a protective shoe which is visually extremely appealing due to the at least one inner first locking surface and allows a functionally reliable locking connection between the sole arrangement and the shaft.
• the at least one first locking surface is preferably spatially limited laterally outwards, i.e. away from a footwell of the protective shoe. It is advantageously spatially unlimited or open to the side inwards, i.e. towards the footwell.
• there are several first locking surfaces which are spaced apart, oblique, perpendicular and/or offset from one another.
• the at least one first locking surface and locking counter surface of the midsole touch preferably in the assembled state of the protective shoe at least in some areas, preferably over a large area.
• the at least one first locking surface according to dependent claim 5 surrounds or runs around the shaft at least partially or in areas. It is preferably endless and preferably runs around/encloses the footwell completely. Conveniently, the at least one first locking surface always faces downwards, i.e. when the protective shoe is assembled to form an outsole.
• the at least one assembly insertion aid according to subclaim 6 leads to a protective shoe that can be particularly easily and safely assembled or assembled. It is formed, for example, by at least one flank, surface or the like, which, starting from the top, runs inwards, for example straight or curved, towards the footwell.
• the at least one assembly insertion aid is preferably arranged above the at least one first locking surface and adjacent to it.
• the sole arrangement or midsole is so easy to assemble or use.
• the outer shell according to subclaim 7 preferably forms an outsole. It preferably forms the shaft.
• a protective shoe offers its wearer a particularly high level of protection, such as against the ingress of liquid.
• the training according to subclaim 10 leads to a protective shoe that is visually extremely appealing due to the at least one inner second locking surface and has a functionally reliable locking connection between the toe cap and the shaft are allowed.
• the at least one second locking surface is preferably spatially limited laterally outwards, i.e. away from a footwell of the protective shoe. It is advantageously spatially unlimited or open to the side inwards, i.e. towards the footwell. For example, there are several second locking surfaces which are spaced apart, oblique, perpendicular and/or offset from one another.
• the at least one second locking surface and locking counter surface of the toe cap preferably touch each other at least in areas, preferably over a large area, in the assembled state of the protective shoe.
• the at least one second locking surface according to dependent claim 11 faces towards a shoe tip or a toe area of the protective shoe. It is preferably exclusively facing forward.
• the at least one second locking surface according to subclaim 12 is located, for example, on a front blade of the protective shoe.
• the at least one second locking surface according to subclaim 14 is, for example, (essentially) U-shaped, circular arc-shaped or the like.
• the midsole of the sole arrangement or the protective shoe is divided into at least two midsole components, in particular in a longitudinal direction. It preferably has at least one connecting element which extends in the longitudinal direction and connects the midsole components to one another. It has been recognized that a subdivision of the midsole into, in particular individual, such as one to five, midsole components and at least one of these, in particular solvable bar or non-detachable, connecting element allows particularly easy and good recycling. Furthermore, for example, repairing, customizing, such as in technical and/or optical terms, space-saving transport or space-saving storage of individual components of the midsole is also possible.
• the midsole is modular.
• the midsole can also be made in one piece. It can in particular be made of one element, in particular consist of one element.
• Penetration protection in particular textile penetration protection, can be part of the midsole or a separate element.
• the penetration protection can be connected in particular to the shoe, in particular to an inner shoe. It can be connected to the shaft in particular on the underside of the shaft, in particular by means of a Strobel seam.
• the at least one connecting element is preferably arranged at least partially in/on the midsole components.
• the at least one connecting element extends at least between midsole components arranged adjacent to one another.
• This at least one connecting element is arranged accordingly on/in midsole components arranged adjacent to one another and preferably protrudes above/in front of them.
• each connecting element connects the midsole components all together.
• This midsole is particularly easy to assemble and manufacture.
• the at least one connecting element is preferably, in particular completely, arranged within the midsole components. This design leads to a particularly stable or resilient midsole.
• the at least one connecting element preferably offers penetration protection.
• This midsole offers a shoe wearer a particularly high level of protection. It is extremely safe.
• the at least one connecting element is sole-like. This midsole allows a particularly secure and resilient connection of the midsole components to one another. It also offers a very high level of comfort.
• the midsole components are preferably originally designed separately from one another. These midsole components differ, for example, in form, function, material and/or hardness.
• midsole components are attached to the at least one connection element.
• This midsole is particularly easy to recycle. In particular, it can be easily dismantled again.
• the at least one connecting element is injected into the midsole components and is preferably wetted at least partially with a release agent.
• This midsole can be produced particularly well and efficiently by machine. It is expedient if each midsole component has at least one connecting element receptacle in which the respective at least one connecting element is accommodated.
• Each connecting element receptacle and the connecting element received there are preferably designed to correspond to one another at least in some areas. This design again leads to a particularly resilient midsole.
• the midsole conveniently includes a front midsole component and a rear midsole component. It is expedient if this midsole also includes at least one intermediate midsole component.
• the midsole preferably includes a toe cap disposed on the front midsole component.
• the front midsole component and the toe cap are connected to one another in one piece or in one piece. They are connected to one another in a detachable or inextricable manner.
• the front midsole component is formed by injection molding and the toe cap is also injected, in particular using a release agent.
• This midsole is particularly economical to produce.
• the toe cap is, for example, molded onto or injected into the front midsole component.
• the protective shoe preferably comprises at least one connection and display arrangement which, in its original, undamaged state, provides an un- Indicates damage to the protective shoe and indicates the dismantling of the protective shoe when the protective shoe is at least partially dismantled. It was recognized that the integrity of the protective shoe can be indicated by means of at least one connection and display arrangement. For example, it can be seen that the protective shoe is in its original state, i.e. complete or unchanged. The protective shoe can be dismantled or dismantled, in particular for the purpose of recycling.
• connection and display arrangement can be produced by machine or by hand.
• the at least one connection and display arrangement is designed as a seam arrangement, in particular a sealed seam arrangement.
• This at least one connection and display arrangement is produced, for example, under pressure and/or heat. It preferably forms a weld or weld seam.
• the at least one connection and display arrangement can be produced quickly and economically, in particular by machine. Alternatively, it is created, for example, by sewing.
• connection and display arrangement preferably tears open at least partially when dismantled.
• This at least one connection and display arrangement enables a simple, clearly visible and functionally reliable display of the at least partial dismantling of the protective shoe.
• the display is preferably irreversible.
• connection and display arrangement is elongated.
• This at least one connection and display arrangement again allows a simple and clearly recognizable as well Functionally reliable display of at least partial dismantling of the protective shoe.
• a connection created by the at least one connection and display arrangement is functionally reliable and resilient.
• the at least one connection and display arrangement is preferably arranged on an inner shoe and/or an outer shell of the protective shoe. It preferably connects an inner shoe and an outer shell of the protective shoe firmly but releasably to one another in their original, undamaged state. It is advantageous if the at least one connection and display arrangement indicates a removal of the toe cap, an inner shoe, a midsole of the sole arrangement and/or a unit consisting of a toe cap and midsole.
• the at least one connection and display arrangement preferably indicates the dismantling of the protective shoe.
• the protective shoe preferably has at least a first connection and display arrangement which is arranged in a clamping area of the protective shoe adjacent to the toe cap.
• the at least one first connection and display arrangement is arranged at a distance from the toe cap. It is expedient if the at least one first connection and display arrangement is arranged in the clamping area between the toe cap and a closure arrangement. This at least one first connection and display arrangement is easily recognizable from the outside, for example by a shoe wearer or another person.
• the protective shoe preferably has at least a second connection and display arrangement which is arranged in a rear region of the protective shoe.
• the at least one second connection and display arrangement is preferably arranged adjacent to an upper free shaft edge of the shaft. This at least one first connection and display arrangement is easily recognizable from the outside, for example by a shoe wearer or another person.
• This protective shoe can be designed in different ways. It preferably has a consistent sole arrangement as a basis. This allows particularly economical production and is user-friendly
• Figure 1 is a side view of a protective shoe according to the invention in the assembled state
• FIG 2 is an exploded view of the protective shoe shown in Figure 1
• Figure 3 shows a midsole of the protective shoe illustrated in Figures 1, 2, which is also shown in Figure 2,
• Figure 4 shows the protective shoe illustrated in Figures 1, 2, which is shown partially cut open
• Figure 5 shows a longitudinal section through the protective shoe shown without an inner shoe
• Figure 6 shows detail VI marked in Figure 5 on an enlarged scale
• Figure 7 shows detail VII marked in Figure 5 on an enlarged scale
• Figure 8 is a partial view illustrating an outer shell of the protective shoe shown in section
• Figures 9, 10 are partially cut-away views of the illustrated protective shoe, showing assembly of the midsole
• FIG. 11 shows a top view of a front area of the outer shell of the protective shoe shown, which illustrates a connection and display arrangement
• Figure 12 shows a section through the illustrated protective shoe, which also shows the inner shoe and the connection and display arrangements
• Figure 13 is a view corresponding to Figure 12, showing the dismantling of the inner shoe.
• FIGs 14-17 perspective views of alternative outer shells of the protective shoe shown
• a protective shoe in its entirety in the assembled state comprises a midsole 1 and a toe cap 2 arranged on the midsole 1 as well as an outer shell 3 in which the midsole 1 and Toe cap 2 is recorded or accommodated.
• the protective shoe also has an inner shoe 4, which is accommodated in the outer shell 3 when the protective shoe is assembled and is supported at the top relative to the midsole 1.
• the inner shoe 4 limits a foot (receiving) space of the protective shoe. It is preferably flexible.
• the protective shoe is elongated and extends along a longitudinal direction L. It has a toe 5 at the front, which is followed by a toe area 6 of the protective shoe. The toe area 6 is in turn adjoined by a clamping area 7 of the protective shoe.
• the protective shoe has a heel area 8 opposite the toe 5 of the shoe.
• the midsole 1 is made in several parts (see in particular Fig. 2, 3). It is preferably designed to be dampening.
• the midsole 1 is divided in the longitudinal direction L into three midsole components, namely a front midsole component 9, a middle midsole component 10 and a rear midsole component 11.
• the midsole components 9, 10, 11 are originally, i.e. before the composition of the protective shoe or the midsole 1, carried out separately from one another and separated from one another. They have different shapes, in particular widths and/or thicknesses, and are preferably corresponding to a foot of a shoe wearer (not shown). adjusted. For example, they have different hardness or are made from different materials.
• the front midsole component 9 is preferably rounded at the front. Opposite/rear, the front midsole component 9 is preferably (essentially) flat.
• the rear midsole component 11 is preferably rounded at the back. Opposite to this, the rear midsole component 11 is preferably flat.
• the middle midsole component 10 is preferably flat at the front and back. A different number of midsole components 9, 10, 11, such as two, four or five, is alternatively possible.
• the midsole components 9, 10, 11 are connected to one another by a single, common connecting element 12, for example releasably or non-detachably.
• the connecting element 12 is flat and thin. It is conveniently designed like a sole.
• the connecting element 12 is preferably rigid and offers, for example, penetration protection.
• the connecting element 12 has a width that changes perpendicular to the longitudinal direction L. For example, it is wider at the front than at the back, at least in some areas. It is preferably rounded at the front and back. It is expedient if the connecting element 12 has a uniform thickness.
• Each midsole component 9, 10, 11 has a connecting element receptacle.
• a front connecting element receptacle 13 In the front midsole component 9 there is a front connecting element receptacle 13 and in the middle midsole component Component 10 is a central connecting element receptacle 14 formed.
• a rear connecting element receptacle 15 is formed in the rear midsole component 11.
• Each connecting element receptacle 13, 14, 15 is slot-like and spatially limited up and down and laterally on the outside perpendicular to the longitudinal direction L.
• Each connecting element receptacle 13, 14, 15 has a height that (essentially) corresponds to the thickness of the connecting element 12.
• the front connecting element receptacle 13 is also spatially limited at the front. It is open towards the rear, i.e. towards the middle midsole component 10 or the middle connecting element receptacle 14.
• the rear connecting element receptacle 15 is spatially limited to the rear. It is open towards the front, i.e. towards the middle midsole component 10 or the middle connecting element receptacle 14.
• the middle connecting element receptacle 14 is open both to the front, i.e. to the front midsole component 9 or the front connecting element receptacle 13, and to the rear, i.e. to the rear midsole component 11 or the rear connecting element receptacle 15. It is continuous in the longitudinal direction L.
• Connecting element receptacles 13, 14, 15 are assembled State of the midsole 1 at a common height and preferably have an identical width. They extend adjacent to each other and are aligned with each other.
• the connecting element 12 engages in the front connecting element receptacle 13 and rear connecting element receptacle 15. It completely penetrates the middle connecting element receptacle 14 and protrudes from it on both sides.
• the midsole components 9, 10, 11 are threaded or plugged onto the connecting element 12, for example.
• the connecting element 12 preferably rests laterally on the outside, at least in some areas, in the respective connecting element receptacle 13, 14 or 15 on the respective midsole component 9, 10 or 11. It is conveniently located at least in areas in the front connecting element receptacle 13 at the front of the front midsole component 9 and in the rear connecting element receptacle 15 at the rear of the rear midsole component 11. Preferably it also rests at least in areas at the top and bottom of each midsole component 9, 10, 11.
• the front midsole component 9 and the middle midsole component 10 also lie against one another, in particular flatly.
• the middle midsole component 10 and the rear midsole component 11 then lie against each other accordingly, in particular flatly.
• the midsole components 9, 10, 11 are fixed or fixed relative to one another by the connecting element 12 in a height direction, i.e. up or down, and in a lateral direction, i.e. to the left or right. They are preferably also held firmly together or fixed relative to one another in the longitudinal direction L.
• the connecting element 12 is at least partially wetted with a release agent in order to enable the midsole components 9, 10, 11 to be removed from one another or from the connecting element 12.
• the connecting element 12 is injected into the midsole components 9, 10, 11.
• it is, for example, overmolded with midsole material to form the midsole components 9, 10, 11.
• the midsole 1 has an outer edge 17 which projects upwards relative to an upwardly facing sole surface 16 and which is closed on the circumference when the midsole 1 is assembled and is therefore endless.
• the outer edge 17 has an upward-facing free head surface 18.
• Each midsole component 9, 10, 11 has at least one corresponding outer partial edge.
• the toe cap 2 is arranged on the front midsole component 9 at the top front. She is rigid. The toe cap 2 is closed at the front, top and sides. It is open at the back. For example, the toe cap 2 is injected directly onto/into the front midsole component 9. For example, it is wetted with a release agent at least in some areas before the spraying process in order to ensure a later separation between the toe cap 2 and the front midsole component 9 to allow. Alternatively, the toe cap 2 and the front midsole component 9 are inextricably connected to one another. Alternatively, the toe cap 2 is originally designed separately and is arranged accordingly on the front midsole component 9.
• the inner shoe 4 engages the toe cap 2 from behind.
• the inner shoe 4 is supported at the top with its inner shoe sole against the sole surface 16.
• the outer edge 17 completely surrounds or runs around the bottom side of the inner shoe 4. It lies against the inner shoe 4 at least in some areas.
• the inner shoe 4 is fixed in place longitudinally and laterally relative to the midsole 1.
• the inner shoe 4 including the midsole 1 and toe cap 2
• the outer shell 3 which forms an outer skin.
• the inner shoe 4 and the outer shell 3 lie against each other at least in some areas.
• the outer shell 3 forms an outsole 19 at the bottom, which has direct contact with a floor or surface (not shown) when the protective shoe is worn by the shoe wearer and ensures sufficient grip on it.
• the outsole 19 extends over the entire midsole 1 and has, for example, a profile at the bottom. Conveniently, it is non-slip, heat-resistant, flexible at low temperatures, cold-insulating, cut-resistant and/or antistatic. It is useful if it has a high abrasion resistance.
• the midsole 1 and the outsole 19 form a sole arrangement of the protective shoe.
• the outer shell 3 also has/forms a sole outer wall 20, which adjoins the outsole 19 at the top edge and, in the assembled state of the protective shoe, completely surrounds the midsole 1 on the circumference or laterally.
• the sole outer wall 20 and the midsole 1 lie against each other at least in some areas. For example, there is an angle between the outsole 19 and the sole outer wall 20 that ranges from 85° to 95°.
• the outer shell 3 also has a shaft outer material 21, which adjoins the sole outer wall 20 at the top and, when the protective shoe is in the assembled state, surrounds the inner shoe 4 on the circumference at least in some areas.
• the shaft outer material 21 and the inner shoe 4 lie against one another at least in some areas.
• the inner shoe 4 is, for example, higher than the shaft outer material 21.
• the shaft outer material 21 and/or the inner shoe 4 form a shaft of the protective shoe.
• a closure arrangement 22 is arranged on the shaft outer material 21 in the clamping area 7.
• the closure arrangement 22 is designed here as a lacing hole arrangement with a large number of lacing holes for lacing the protective shoe.
• Other closure arrangements, such as Velcro arrangements, can be used alternatively.
• the outer shell 3 has, on the inside, adjacent to the head surface 18 of the midsole 1, a, in particular only, downward-facing, free first locking surface 23 (FIGS. 4, 5, 6), which is thus in a transition area between the soles - Outer wall 20 and the shaft outer material 21 is arranged.
• the first rest Surface 23 is closed on the circumference and therefore endless. It is arranged at a distance from the outsole 19 and faces it.
• the head surface 18 forms a locking counter surface in relation to the first locking surface 23.
• the outer shell 3 or the shaft outer material 21 has an assembly insertion aid 32 adjacent above the first locking surface 23, which, like the first locking surface 23, is closed on the circumference and endless.
• the assembly insertion aid 32 extends along the entire first locking surface 23.
• the shaft outer material 21 thickens continuously from top to bottom, forming the first locking surface 23 and forming an insertion bevel.
• the insertion slope projects inwards from above.
• the first locking surface 23 is spatially unlimited laterally inwards, that is to say towards the inner shoe 4 or footwell. It is spatially limited to the side outside, that is, away from the inner shoe 4 or footwell.
• the shaft outer material 21 also has a, in particular only, free, second locking surface 24 (FIGS. 5, 7), which faces forward and runs in an arc.
• the second locking surface 24 borders on the top of the midsole 1, in particular on its head surface 18, and is continuous. It projects inwards and is spatially unlimited inwards, i.e. in relation to the inner shoe 4 or footwell. It is spatially limited to the side outside, that is, away from the inner shoe 4 or footwell.
• the shaft outer material 21 is thinner in the area of the toe cap 2 than behind it.
• a free, i.e. rear, edge 25 of the toe cap 2 facing away from the shoe tip 5 forms a locking counter surface for the second locking surface 24.
• the protective shoe also has in the clamping area 7 a first sealing seam arrangement 26 (FIGS. 1, 11, 12, 13), which, when the protective shoe is assembled, extends in a width direction between the closure arrangement 22 and the toe cap 2.
• the first sealing seam arrangement 26 has two elongated sealing seams which run essentially parallel to one another and which form a firm but detachable or destructible connection between the outer shell 3 and the inner shoe 4. It is visible from outside. It forms a connection and display arrangement.
• the protective shoe has a second sealing seam arrangement 27 (FIGS. 1, 12, 13), which is designed (essentially) like the first sealing seam arrangement 26.
• the second sealing seam arrangement 27 is arranged at the top in a heel area 8 of the protective shoe and extends there circumferentially. It again forms a firm but detachable or destructible connection between the outer shell 3 and the inner shoe 4. It is visible from outside. It forms a connection and display arrangement.
• the midsole 1 is inserted in the assembled state, manually or automatically, as a unit enclosing the toe cap 2 from above into the interior 29 of the outer shell 3 via an upper opening 28.
• the front midsole Component 9 leading.
• the sole surface 16 or head surface 18 faces upwards.
• the midsole 1 is guided in such a way that its head surface 18 engages under the first locking surface 23 at the front.
• the midsole 1 is preferably inclined downwards to the front.
• the unit consisting of midsole 1 and toe cap 2 is shifted or pivoted downwards at the rear, so that the said unit also approaches the outsole 19 from above.
• the outer shell 3 adjacent to the first locking surface 23 is pressed laterally outwards by the midsole 1, for example everywhere on the circumference, due to the upstream assembly insertion aid 32.
• the first locking surface 23 snaps or jumps over the head surface 18, which forms a counter-locking surface.
• the first locking surface 23 then engages over the head surface 18 and is located above it. They lie flat against each other, at least in some areas.
• the outer shell 3 and the midsole 1 are in a snap or snap connection to one another.
• the midsole 1 is fixed in particular upwards by this locking connection.
• the midsole 1 lies at least partially on the inside of the sole outer wall 20 of the outer shell 3. It rests on the outsole 19 at least in some areas.
• the toe cap 2 pushes the outer shell 3 or the shaft outer material 21 adjacent to the second locking surface 24 laterally outwards and upwards.
• the second locking surface 24 snaps or jumps over the edge 25 of the toe cap 2 forms a counter-locking surface. They lie flat against each other, at least in some areas.
• the outer shell 3 and the toe cap 2 are in a snap or snap connection to one another.
• the toe cap 2 and the midsole 1 are fixed by this locking connection, in particular backwards towards the heel area 8.
• the toe cap 2 lies at least partially on the inside of the shaft outer material 21 of the outer shell 3.
• the front midsole component 9 is located with the toe cap 2 in the toe area 6 of the protective shoe.
• the rear midsole component 11 is located in the heel area 8 of the protective shoe.
• the middle midsole component 10 is located in between.
• the first and second sealing seam arrangements 26, 27 are then created.
• the sealing seam arrangements 26, 27 each create a firm but releasable seam connection between the outer shell 3 or the shaft outer material 21 and the inner shoe 4, which fixes the inner shoe 4 in the outer shell 3. They are each connected, in particular more directly, to both the outer shell 3 and the inner shoe 4.
• the inner shoe 4 is then inserted.
• the inner shoe 4 is inserted together with the unit consisting of midsole 1 and toe cap 2.
• a shoe wearer can now use the protective shoe normally. His toes engage the toe cap 2 from behind and are located in the toe area 6 of the protective shoe. His heel is located in the heel area 8 of the protective shoe.
• the inner shoe 4 is first removed from the outer shell 3.
• the sealing seam arrangements 26, 27 tear open and are thus destroyed (Fig. 13). In this way, they indicate that the protective shoe has been dismantled, which can be seen from the outside.
• the protective shoe loses its compliance with standards and also the guarantee, which is recognized or displayed accordingly.
• the unit consisting of midsole 1 and toe cap 2 can then be removed from the outer shell 3.
• the locking connections are released, for example manually, in particular by lifting the mutually assigned locking surfaces 23, 24 and locking counter surfaces 18, 25, in particular by applying corresponding external forces or executing corresponding relative movements between them, from one another.
• the midsole components 9, 10, 11 can then be separated from one another. When they are separated from each other, the connecting element 12 is exposed again.
• the inner shoe 4 can be individually recycled.
• the outer shell 3 can also be individually recycled.
• the midsole components 9, 10, 11 can also be recycled individually or together.
• the connecting element 12 can also be individually recycled.
• the outer shell 3 can be designed differently. According to Figure 14, the outer shell 3 is closed in a shaft area. It is made of TPU (thermoplastic polyurethane), for example, injected and conveniently waterproof.
• TPU thermoplastic polyurethane
• the outer shell 3 has several windows 30 in the shaft area.
• the windows are closed by at least one mesh 31.
• the at least one braid 31 is preferably made of TPU.
• the outer shell 3 is perforated in the shaft area to form windows 30.
• the perforations are, for example, smaller and/or larger than openings of the at least one braid 31. They have, for example, different sizes and/or shapes.
• the outer shell 3 has a braid throughout the entire shaft area, which consists, for example, of TPU.
• front refers to a protective shoe that stands with its sole arrangement on a floor or is intended to be worn by a shoe wearer.
• the toe area 6 and the toe of the shoe 5 are, as usual, located at the front, for example.
• the heel area 8 is located at the back, for example.
• the outsole 19 is at the bottom.

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• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

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• 2022
  • 2022-03-23 DE DE102022202830.9A patent/DE102022202830A1/de active Pending
• 2023
  • 2023-03-22 JP JP2024556123A patent/JP2025509953A/ja active Pending
  • 2023-03-22 US US18/848,259 patent/US20250212999A1/en active Pending
  • 2023-03-22 EP EP23713881.3A patent/EP4496492A1/de active Pending
  • 2023-03-22 WO PCT/EP2023/057296 patent/WO2023180366A1/de not_active Ceased
  • 2023-03-22 CN CN202380029664.8A patent/CN118946282A/zh active Pending
  • 2023-03-22 EP EP25169637.3A patent/EP4599731A1/de active Pending

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