Fitting for connection with a pane, kit for a shower enclosure, pane arrangement, screw arrangement and zinc die-casting process for the manufacture of a fitting or retaining element.

Abstract

A fitting for connection to a glass panel, a shower enclosure kit, a glass panel assembly, and a zinc die-casting process for manufacturing a fitting are proposed. The fitting has a threadless mounting recess for screwing it to a glass panel. The depth of the mounting recess is less than 1.2 times its diameter. Preferably, the fitting is made of high-strength die-cast zinc. The fitting is particularly preferably made of metal casting and has a porosity of less than 5% of its total volume. Preferably, the fitting is manufactured using a zinc die-casting process. This allows for the creation of a particularly thin yet stable fitting that is lightweight and cost-effective to produce.

Description

[0001] The present invention relates to a fitting for connection to a pane according to the preamble of claim 1, a kit for a shower partition according to the preamble of claim 6, a pane arrangement according to the preamble of claim 14, a screw arrangement according to the preamble of claim 18 and a zinc die-casting method for producing a fitting or holding element according to the preamble of claim 31.

[0002] DE 20 2020 000 400 U1 discloses a fitting for a shower enclosure for connection to a pane of glass. The fitting has two blind holes, each with an internal thread, into which two screws engage. The fitting is screwed to the pane using the two screws, creating a stable connection between the fitting and the pane. A plastic intermediate element is provided between the pane and the screw head to ensure optimal clamping of the pane without damage. To ensure sufficient clamping force between the fitting and the pane, a sufficient screw-in depth of the two screws is required. Due to the required screw-in depth, the fitting is particularly thick and thus protrudes considerably from the flat side of the pane, which is considered visually unappealing.

[0003] The screw-in depth of the screws in the blind holes is more than 1.5 times the nominal diameter of the screw. Currently, screws with a nominal diameter of 6 mm are screwed in more than 9 mm deep. When using screws with a nominal diameter of 8 mm, they are screwed in more than 12 mm deep.

[0004] In the area of ​​the blind hole, the fitting has a thickness perpendicular to the washer of more than 2.2 times the nominal diameter of the screw.

[0005] DE 202 18 620 U1 discloses a fitting for a shower enclosure with a similarly large screw-in depth. The fitting also features an adjustment mechanism with a pivoting element to allow the two fitting halves to be adjusted relative to each other in all directions parallel to the panel plane. Due to the required screw-in depth and the space required for the adjustment mechanism, the fitting is particularly thick.

[0006] AT 519565 A4 discloses a holding device for a glass panel, particularly for shower enclosures. The holding device comprises two hinge parts with recesses and a cover element. For attachment to the glass panel, screws pass through the recesses of the holding device and are secured with nuts. The cover element is then attached to conceal the hinge parts and nuts. Since only the screws pass through the hinge parts, they can be made thinner. However, sufficiently thick nuts must be used to achieve sufficient holding force. The thickness is further increased by the cover element. Overall, the holding device is therefore particularly thick.

[0007] The present invention is based on the object of specifying a fitting, a kit, a pane arrangement, a screw arrangement and a method for producing a fitting, wherein the thickness of the fitting or holding element and thus the projection relative to the flat side of the pane is reduced and a simple and compact construction as well as cost-effective production are enabled.

[0008] The above object is achieved by a fitting according to claim 1, by a kit according to claim 6, a disc arrangement according to claim 14, a screw arrangement according to claim 18 and a zinc die-casting method for producing a fitting according to claim 31. Advantageous further developments are the subject of the dependent claims.

[0009] The proposed fitting has a mounting recess for screwing to the pane.

[0010] According to a first aspect of the present invention, the fastening recess is preferably threadless. The fitting is then particularly easy to manufacture. Furthermore, a particularly strong connection is created between a screw and the fitting when a screw is screwed into the fastening recess. The thickness of the fitting can thus be reduced in the area of ​​the fastening recess compared to the prior art.

[0011] Particularly preferably, the fastening recess is designed as a blind hole or does not extend completely through the fitting.

[0012] According to a further aspect of the present invention, which can also be implemented independently, the depth of the fastening recess is preferably less than 120% of the hole diameter of the fastening recess. The fastening recess is then shallow relative to the hole diameter, allowing the thickness of the fitting in the area of ​​the fastening recess to be kept particularly low compared to the previous design. At the same time, the material requirements can be reduced, thus lowering the overall costs.

[0013] According to a further aspect of the present invention, which can also be implemented independently, the thickness of the fitting or a fitting tab associated with the pane is preferably less than 140% of the hole diameter of the mounting recess. The fitting is then significantly thinner than before. This allows for a lightweight and particularly thin fitting to be realized.

[0014] The proposed fitting must be designed to permanently withstand the weight of the pane. In the case of a shower enclosure, the weight force can exceed 250 N, for example, with a (door-sized) pane of glass it can be around 275 N. When the pane is moved, in particular when opening or closing the door or shower enclosure, even greater forces can occur. The holding force of the fitting must therefore be sufficiently large. As already mentioned at the beginning, this is achieved in the state of the art by a screw-in depth that is more than 150% of the nominal diameter of the screw. The fitting must therefore have a sufficient thickness, which in the case of a blind hole is well over the stated 150% of the nominal diameter of the screw; for example, in DE 20 2020 000 400 U1 it is around 220%.

[0015] Surprisingly, it was found that with the proposed fitting, the depth of the fastening recess and / or the thickness of which - in particular in relation to the hole diameter of the fastening recess - is significantly smaller than with the known fittings, a sufficient holding force can be achieved to hold panes or door leaves, in particular made of glass and / or for shower partitions.

[0016] Based on the prior art, it was not readily possible for a person skilled in the art to reduce the hole depth and / or the thickness of the fittings, as it was unknown whether or how fittings with such dimensions could be manufactured that nevertheless achieved sufficient holding force for panes or door leaves, in particular made of glass and / or for shower partitions.

[0017] According to a further aspect of the present invention, which can also be implemented independently, the fitting is preferably made of cast metal and has a pore volume with a ratio of less than 0.05 to the total volume. The fitting then has a particularly low pore volume compared to the prior art. The fitting thus has particularly high strength, in particular tensile strength.

[0018] According to a further aspect of the present invention, which can also be implemented independently, the fitting is preferably made of cast metal and has pores, wherein the pores are smaller than 1 mm, thereby achieving a low individual pore volume. The fitting then has particularly high strength, in particular tensile strength, which enables a particularly thin design, especially in the area of ​​the fastening recess.

[0019] The low pore volume and / or small pore size represent particularly advantageous material properties of the fitting, which particularly favor the small hole depth and / or thickness. This makes the fitting more (tensile) strong than conventional metal-cast fittings known from the prior art with more and / or larger pores. For example, with the proposed fitting, if it is made of die-cast zinc, in particular ZnAl4Cu1, tensile strengths of more than 320 MPa, in particular more than 350 MPa or more than 360 MPa, can be achieved.

[0020] A reduction in the pore volume and / or pore size was not readily possible for the person skilled in the art based on the prior art, since no corresponding manufacturing processes were known.

[0021] According to a further aspect of the present invention, which can also be implemented independently, the fitting is preferably made of high-strength die-cast zinc. The fitting then exhibits particularly high strength, particularly tensile strength. In this way, the thickness of the fitting in the area of ​​the mounting recess can be kept particularly low.

[0022] According to a further aspect of the present invention, which can also be implemented independently, the fitting is preferably manufactured using a zinc die-casting process according to the proposed method. Due to the zinc die-casting process, a low pore volume, a small pore size, and / or high strength, in particular tensile strength, of the fitting can be achieved, whereby the screw-in depth and thus the thickness of the fitting can be further reduced. Reference is made to all statements regarding the proposed zinc die-casting process in this regard.

[0023] Furthermore, a kit for a shower enclosure with a pane, in particular a door or a partition, with a screw and with a fitting with a fixing recess for screwing to the pane by means of the screw is proposed.

[0024] According to one aspect of the present invention, the screw preferably has a thread formed by non-cutting forming. The thread of the screw is thus formed by material displacement and thus work-hardened. The thread formed in this way has particularly high strength, in particular tensile strength. The required screw-in depth of the screw and thus the thickness of the fitting half can thus be further reduced.

[0025] According to a further aspect of the present invention, which can also be implemented independently, the screw is preferably designed as a self-tapping screw. When screwed into the fastening recess, the screw preferably creates its own counter-thread, thereby forming a particularly stable connection with a high degree of resistance to unscrewing the screw.

[0026] The material of the mounting recess is preferably displaced and work-hardened during the screw insertion, creating a particularly strong and stable internal thread in the mounting recess. This eliminates the need to create a thread in the mounting recess before screwing, resulting in cost savings. By creating a high-strength internal thread, a higher force can be transmitted between the screw and the fitting, reducing the screw-in depth and thus the thickness of the fitting. The high degree of self-locking between the screw and the mounting recess provides a captive locking mechanism.

[0027] The screw formed with a chipless thread and / or self-tapping screw can preferably, in addition to or as an alternative to the proposed fitting, ensure a sufficiently stable connection and / or sufficient holding force for the disc, in particular even with a (relatively) small screw-in depth of the screw.

[0028] According to a further aspect of the present invention, which can also be implemented independently, the depth or longitudinal extent of the fastening recess corresponds to less than 120% and / or more than 105% of the nominal diameter of the screw. Due to the shallow depth of the fastening recess, the thickness of the fitting in the area of ​​the fastening recess can be kept particularly low. At the same time, the overall mass of the fitting can be reduced.

[0029] According to a further aspect of the present invention, which can also be implemented independently, the thickness of the fitting or a fitting tab associated with the washer corresponds to less than 150% and / or more than 110% of the nominal diameter of the screw. The thickness of the fitting or a fitting tab associated with the washer can then be kept particularly low, thereby achieving a particularly attractive appearance of the fitting.

[0030] Surprisingly, it was found that the proposed kit already provides sufficient holding force to hold panes or door leaves, especially those made of glass and / or for shower partitions.

[0031] Based on the prior art, it was not readily possible for a person skilled in the art to design a kit with the above-mentioned ratios of nominal screw diameter to hole depth or thickness of the fitting, since it was unknown whether or how such a kit could be produced that nevertheless achieved sufficient holding force for the pane, in particular made of glass and / or for shower partitions.

[0032] According to a further aspect of the present invention, which can also be implemented independently, the fitting is designed as proposed. Reference is made to all statements regarding the proposed fitting in this regard.

[0033] In a particularly advantageous synergistic manner, a fitting according to the proposal and a screw according to the proposal can interact to enable a particularly stable connection or a particularly high holding force, in particular even with a (comparatively) small screw-in depth of the screw.

[0034] However, it is preferably not necessary to design both the fitting and the screw as proposed to ensure a sufficiently stable connection and holding force for the pane. In particular, the self-tapping and / or non-cutting threaded screw can also be used with a fitting with a standard pore volume or standard pore size, and can be advantageous. Conversely, the proposed fitting can also be used with other screws and can be advantageous.

[0035] Furthermore, a pane arrangement, in particular a shower partition, is proposed, comprising a pane and a fitting with a fastening recess which is screwed to the pane by means of a screw.

[0036] According to one aspect of the present invention, the screw has a thread formed by non-cutting forming. The screw thread is thus formed by material displacement and thus work-hardened. The thread formed in this way thus exhibits particularly high strength, in particular tensile strength. The required screw-in depth of the screw and thus the thickness of the fitting half can thus be further reduced.

[0037] According to a further aspect of the present invention, which can also be implemented independently, the screw is preferably designed as a self-tapping screw. When screwed into the fastening recess, the screw preferably creates its own counter-thread, thereby forming a particularly stable connection with a high degree of resistance to unscrewing the screw. The material of the fastening recess is displaced and work-hardened when the screw is inserted, thereby forming a particularly strong and stable internal thread in the fastening recess. It is then not necessary to create a thread in the fastening recess, which can save manufacturing costs. By forming a high-strength internal thread, a higher force can be transmitted between the screw and the fitting, whereby the screw-in depth and thus the thickness of the fitting can be reduced.Due to the high self-locking between the screw and the fastening recess, a loss protection can be realized.

[0038] According to a further aspect of the present invention, which can also be implemented independently, the depth of the fastening recess corresponds to less than 120% and / or more than 105% of the nominal diameter of the screw. Due to the shallow depth of the fastening recess, the thickness of the fitting in the area of ​​the fastening recess can be kept particularly low. At the same time, the overall mass of the fitting can be reduced, which simplifies production and makes it particularly cost-effective.

[0039] According to a further aspect of the present invention, which can also be implemented independently, the thickness of the fitting or a fitting tab associated with the washer corresponds to less than 150% and / or more than 110% of the nominal diameter of the screw. The thickness of the fitting or a fitting tab associated with the washer can then be kept particularly low, thereby achieving a particularly attractive appearance of the fitting.

[0040] According to a further aspect of the present invention, which can also be implemented independently, the screw-in depth of the screw into the mounting recess is less than the nominal diameter of the screw. Surprisingly, this screw-in depth is sufficient for the connection between the washer and the fitting half. The fitting can then have a particularly thin thickness in the area of ​​the mounting recess, which saves material and simplifies production.

[0041] According to a further aspect of the present invention, which can also be implemented independently, the fitting is designed as proposed. Reference is made to all statements regarding the proposed fitting in this regard.

[0042] The explanations for the kit preferably apply to the disc arrangement accordingly or supplement it.

[0043] Furthermore, a screwing arrangement is proposed with an element to be fastened, in particular a disc, on a holding element with a fastening recess, which is screwed to the element to be fastened by means of a screw.

[0044] The previous explanations preferably apply correspondingly or additionally to the screw arrangement. In particular, the explanations for the fitting also apply correspondingly or additionally to the retaining element.

[0045] According to one aspect of the present invention, the screw has a thread formed by non-cutting forming. Regarding the advantages, reference may be made to the above explanations.

[0046] According to a further aspect of the present invention, which can also be implemented independently, the screw is preferably designed as a self-tapping screw. When screwed into the fastening recess, the screw preferably creates its own counter-thread, thereby forming a particularly stable connection with a high degree of resistance to unscrewing the screw. Regarding the advantages, reference is made to the above explanations.

[0047] According to a further aspect of the present invention, which can also be implemented independently, the depth of the fastening recess corresponds to less than 120% and / or more than 105% of the nominal diameter of the screw. Regarding the advantages, reference may be made to the above explanations.

[0048] According to a further aspect of the present invention, which can also be implemented independently, the thickness of the retaining element corresponds to less than 150% and / or more than 110% of the nominal diameter of the screw. Regarding the advantages, reference may be made to the above explanations.

[0049] According to a further aspect of the present invention, which can also be implemented independently, the screw-in depth of the screw into the fastening recess is less than the nominal diameter of the screw. Surprisingly, this screw-in depth is sufficient for the connection between the washer and the retaining element. The retaining element can then have a particularly thin thickness in the area of ​​the fastening recess, which saves material and simplifies production.

[0050] According to a further aspect of the present invention, which can also be implemented independently, the fastening recess is preferably designed without a thread, in particular as a blind hole. Regarding the advantages, reference is made to the above explanations.

[0051] According to a further aspect of the present invention, which can also be implemented independently, the depth of the mounting recess is preferably less than 120% of the hole diameter of the mounting recess. Regarding the advantages, reference may be made to the above explanations.

[0052] According to a further aspect of the present invention, which can also be implemented independently, the thickness of the retaining element is preferably less than 140% of the hole diameter of the fastening recess. The retaining element is then significantly thinner than before. This allows for a lightweight and particularly thin retaining element to be realized.

[0053] According to a further aspect of the present invention, which can also be implemented independently, the retaining element is preferably made of cast metal and has a pore volume with a ratio to the total volume of less than 0.05. The retaining element then has a particularly low pore volume compared to the prior art. The retaining element thus has particularly high strength, in particular tensile strength.

[0054] According to a further aspect of the present invention, which can also be implemented independently, the retaining element is preferably made of cast metal and has pores, wherein the pores are smaller than 1 mm, thereby achieving a low individual pore volume. The retaining element then has particularly high strength, in particular tensile strength, which enables a particularly thin design, particularly in the area of ​​the fastening recess.

[0055] According to a further aspect of the present invention, which can also be implemented independently, the retaining element is preferably made of high-strength die-cast zinc. The retaining element then exhibits particularly high strength, particularly tensile strength. In this way, the thickness of the retaining element in the area of ​​the fastening recess can be kept particularly low.

[0056] According to a further aspect of the present invention, which can also be implemented independently, the retaining element is preferably manufactured using a zinc die-casting process according to the proposed method. Due to the zinc die-casting process, a high strength, particularly tensile strength, of the retaining element can be achieved, which allows the screw-in depth and thus the thickness of the retaining element to be further reduced. Reference is made to all statements regarding the proposed zinc die-casting process in this regard.

[0057] Preferably, in the proposed disc arrangement and / or the proposed screw arrangement, only the threads first introduced into the fastening recess, in particular the threads at the entrance of the fastening recess, carry the load or at least a large part of the load transmitted by the screw, in particular more than 80% of the load, preferably more than 90% of the load, more preferably more than 95% of the load. Particularly preferably, a surface pressure of more than 300 N / mm acts on the first threads. 2 , preferably more than 400 N / mm 2 , further preferably more than 500 N / mm 2 .

[0058] Surprisingly, it was found that with the proposed disc arrangement or the proposed screw arrangement, such a high surface pressure or load transfer can be achieved, at least essentially, only by a few, in particular only three, threads, even if the fitting or the retaining part is made of die-cast zinc, in particular ZnAl4Cu1. In the prior art, only surface pressures of up to 250 N / mm 2 possible. With the proposed disc arrangement or screw arrangement, a surface pressure approximately twice as high as in the prior art can be achieved.

[0059] Due to the high surface pressure and / or the low required screw-in depth, the fitting or retaining element can be designed to be particularly thin.

[0060] Furthermore, a zinc die-casting method for producing a fitting, in particular a fitting according to the proposal, with a pane, in particular a door or a wall, preferably for a shower partition, or a holding element for connection to an element to be fastened, in particular a pane, is proposed, wherein in a pre-filling phase a cavity of a tool is partially filled with molten material by means of a casting piston, wherein in a subsequent mold filling phase the cavity of the tool is completely filled by means of the casting piston, and wherein a holding pressure is generated in a holding pressure phase following the mold filling phase.

[0061] By means of the proposed zinc die-casting process, a fitting and / or holding element can preferably be produced which has a pore volume with a ratio to the total volume of less than 0.05, preferably less than 0.04 or less than 0.035, and / or in which the pores are smaller than 1 mm, preferably smaller than 0.8 mm or smaller than 0.7 mm, and / or which has a tensile strength of more than 300 MPa, in particular of more than 320 MPa or 350 MPa, particularly preferably of more than 360 MPa or 380 MPa, and / or an E-modulus of more than 80 GPa or 85 GPa, preferably of more than 90 GPa or 100 GPa.

[0062] According to one aspect of the present invention, to avoid turbulence, the molten material is preferably introduced into the cavity of the tool more slowly during the prefilling phase than during the mold filling phase, so that the pore volume of the fitting or the retaining element is less than 5% of the total volume of the fitting or the retaining element. The fitting or the retaining element produced in this way then has a particularly low pore volume, which allows a particularly high strength, in particular tensile strength, of the fitting to be achieved.

[0063] According to a further, also independently realizable aspect of the present invention, the molten material is preferably introduced into the cavity of the tool at a first speed during the prefilling phase and at a second speed during the mold filling phase, with the second speed being more than five times higher. The different travel speeds result in particularly little gas being trapped within the molten material. Due to the low gas inclusion, particularly few and also particularly small pores are formed, whereby a fitting or a holding element with particularly high strength, in particular tensile strength, and stability can be produced.

[0064] According to a further aspect of the present invention, which can also be implemented independently, the casting piston is preferably moved faster in the mold filling phase than in the prefilling phase to avoid turbulence, so that the pore volume of the fitting or the retaining element is less than 5% of the volume of the fitting or the retaining element. The fitting or the retaining element can then be manufactured with a particularly low porosity, whereby a particularly high strength, in particular tensile strength, of the fitting or the retaining element can be achieved. Due to the high strength, in particular tensile strength, the thickness of the fitting or of a fitting tab or retaining element assigned to the pane can be kept particularly low.

[0065] According to a further aspect of the present invention, which can also be implemented independently, the casting piston is preferably moved at a first speed in the prefilling phase and at a second speed in the mold filling phase, wherein the second speed corresponds to more than five times, preferably more than eight times, the first speed. In this way, the filling of the cavity and the solidification of the molten material within the cavity can take place with particularly little pore formation. The ratio of the travel speeds results in particularly little gas being enclosed within the molten material, whereby particularly few and at the same time particularly small pores are formed. The fitting or the holding element formed in this way thus has particularly high strength, in particular tensile strength, and stability.

[0066] According to a further aspect of the present invention, which can also be implemented independently, the duration of the prefilling phase is more than 90%, preferably more than 95%, of the duration of the mold filling phase. In this way, turbulence can be prevented when the molten material is poured into the cavity, thereby reducing the amount of gas entering the molten material. This allows for a particularly stable fitting or a particularly stable retaining element with a low pore volume to be obtained.

[0067] The material shrinkage can be reduced in a particularly advantageous manner if a holding pressure of more than 60 MPa and / or less than 100 MPa is generated in the holding pressure phase.

[0068] Preferably, the tool is tempered to a temperature of more than 160 °C and / or less than 200 °C. In this way, particularly advantageous surface properties of the fitting or retaining element and uniform cooling of the molten material with minimal pore formation can be achieved.

[0069] Preferably, the material melt is tempered to a temperature of more than 400 °C and / or less than 450 °C, whereby a particularly advantageous flowability and good processability of the material melt are achieved.

[0070] In order to obtain a particularly stable and strong fitting, the material melt preferably has a zinc content of more than 94 wt.%

[0071] Additional advantages, features, characteristics, and aspects of the present invention will become apparent from the claims and the following description and a preferred embodiment with reference to the drawing. It shows: Fig. 1 a schematic perspective view of a proposed shower enclosure with a proposed fitting; Fig. 2 a perspective rear view of the fitting; Fig. 3 a perspective rear view of the fitting connected to a pane; Fig. 4A shows the proposed shower partition according to a first embodiment with the proposed fitting in a sectional view in the unscrewed state; Fig. 4B the shower partition Fig. 4A) in the screwed state; Fig. 4C shows the proposed shower partition according to a second embodiment with the proposed fitting in a sectional view in the unscrewed state; Fig. 4D the shower partition Fig. 4C) in the screwed state; Fig. 5 a longitudinal section of the shower partition or screw arrangement; Fig. 6A is a sectional view of a proposed screw assembly in an unthreaded state; Fig. 6B the screw arrangement from Fig. 6A in screwed condition; and Fig. 7 a device for carrying out a zinc die-casting process.

[0072] In the figures, the same reference symbols are used for identical or similar parts, whereby corresponding or comparable advantages are achieved, even if a repeated description is omitted for the sake of simplicity.

[0073] Fig. Figure 1 shows a schematic side view of a proposed panel arrangement, in particular a shower enclosure 1, with a partition or door 2, in particular made of glass. The door 2 can also be made of another similar, in particular transparent, material.

[0074] In principle, the door 2 can also be a partition 3, i.e., a partition, or the like. The term "shower partition" should therefore preferably be understood in a very general sense, so that it also includes, in particular, bathtub attachments and other partitions or the like.

[0075] The door 2 is preferably formed by a pane 4, in particular made of glass.

[0076] The partition wall 3 is preferably formed by a pane 4, in particular made of glass.

[0077] In the illustrated example, the partition wall 3 is preferably designed to be stationary and / or in particular fastened to a wall (not shown), particularly preferably by means of a wall profile or in another suitable manner.

[0078] The pane arrangement or shower partition 1 - for the sake of simplicity, we will always refer to the shower partition 1 below - has at least one fitting 5 associated with the door 2. The fitting 5 serves here for the support or mounting, in particular pivot mounting, of the door 2 on a particularly fixed component, for example on a room wall (not shown) or on the associated partition wall 3, as in Fig. 1. However, fitting 5 can also hold a sliding door, for example.

[0079] The door 2 or pane 4 is preferably movable, in particular pivotable, and is held on the partition wall 3 via the fitting 5.

[0080] In the illustrated example, the door 2 is preferably pivotally mounted via two fittings 5. The fittings 5 ​​connect the door 2 and the partition wall 3. In particular, both fittings 5 ​​are constructed identically.

[0081] The fittings 5 ​​preferably connect the door 2 and the partition wall 3 in such a way that their vertical edges 6 and 7 are adjacent to each other and in the Fig. 1. In this initial position, the door 2 is preferably in the closed position, thus closing the shower partition 1. In this initial position, the fittings 5 ​​are preferably stretched, i.e., in particular, not angled, bent, or pivoted.

[0082] However, tolerances or (minor) deviations are possible, particularly due to assembly. For example, it is possible that the main planes of the door 2 and partition wall 3, or the fastening sides of the fitting halves 8, 9, are not exactly in the same plane or are slightly angled relative to each other. The deviation is preferably a maximum of 10°, in particular a maximum of 5°. The angle enclosed between the main planes of the door 2 and partition wall 3, or the fastening sides of the fitting halves 8, 9, is preferably between 170° and 190°, in particular between 175° and 185°.

[0083] The fitting 5 is preferably arranged at least substantially only on the outside and is preferably at least substantially flush with the door 2, partition wall 3 and / or pane 4 on the inside or shower room side.

[0084] "Inside" refers specifically to the space or shower area enclosed or demarcated by the shower partition 1. Accordingly, "inside" can also refer to the shower room side or adjacent to the shower room. "Outside" refers specifically to the other side of the shower partition 1.

[0085] Particularly preferably, the door 2 can be pivoted outward or upward starting from the closed or initial position. In the illustrated example, the door 2 can be pivoted or opened outward starting from the initial or closed position shown—as indicated by the outward pivoting movement 10.

[0086] The pivoting movement 10 outwards corresponds to an opening of the door 2 outwards.

[0087] A seal and / or a seal each can be provided on the vertical edges 6, 7 to seal the shower partition 1 from the outside between the door 2 and the partition wall 3, at least when the door 2 is closed. The seal(s) can extend over the entire length of the vertical edges 6, 7.

[0088] Fig. 2 shows a perspective rear view of the fitting 5 in the initial position without the door 2 and partition 3.

[0089] The fitting 5 preferably has two fitting halves 8, 9, each having a coupling part 11, via which the two fitting halves 8, 9 are articulated to one another.

[0090] A fitting tab 12 preferably extends from the coupling part 11 and, when mounted, rests against the pane 4, as Fig. 1 shows an example.

[0091] The fitting tab 12 is preferably connected to the coupling part 11. In particular, the fitting tab 12 is formed integrally with the coupling part 11.

[0092] How Fig. 2 to Fig. 4, the fitting 5 or the fitting half 8 and / or 9 preferably has exactly one fastening recess 13 for screwing to the door 2 or the pane 4 of the door 2 or to the partition 3 or the pane 4 of the partition 3. It is also possible for the fitting half 8 and / or 9 to have two or more fastening recesses 13.

[0093] The fastening recess 13 can extend completely through the fitting 5 or completely penetrate the fitting 5 or not completely extend through the fitting 5. The fastening recess 13 is then designed, for example, as a blind hole, as in Fig. 4 is shown.

[0094] Preferably, the disc 4 is connectable or connected to the fitting 5 by means of a screw 14, as Fig. 3 and Fig. Show 4.

[0095] In the example shown, screwing is carried out from the inside of the shower partition 1 or door 2 and partition wall 3, preferably flush.

[0096] Each fitting half 8, 9 can be screwed with a screw 14 to the associated door 2 or pane 4 or partition 3, as shown in Fig. 3 shown.

[0097] Preferably, the fitting 5, in particular the fitting tab 12, has a stop 15 for bearing against the vertical edge 6, 7 of the door 2 or the pane 4 of the door 2 or the partition 3 or the pane 4 of the partition 3. The stop 15 enables a simple and quick arrangement of the fitting 5 relative to the door 2 or the partition 3.

[0098] To prevent the first fitting half 8 or the fitting flap 12 from coming into direct contact with the door 2, an intermediate bearing element, preferably made of a soft or plastic material, can be arranged between them. The same preferably also applies to the second fitting half 9 and its attachment to the partition wall 3.

[0099] The fastening recess 13 for screwing to the disc 4 is preferably part of the fitting flap 12.

[0100] A proposed kit 16 for a shower partition 1 preferably comprises a pane 4, in particular a door 2 or a partition wall 3, a screw 14 and a fitting 5 with a fastening recess 13 for screwing to the pane 4 by means of the screw 14.

[0101] In the Fig. 4 shows the screw connection or kit 16 for a shower enclosure 1. In Fig. 4A and Fig. 4C is the screw connection or kit 16 before screwing and in Fig. 4B and Fig. 4D shown after screwing. Fig. 4A and Fig. 4B show a first embodiment and Fig. 4C and Fig. 4D shows a second embodiment of the screw connection or kit 16.

[0102] The disc 4 preferably has an opening or disc recess 17 with a particularly inclined or conical section 17a with an angle of inclination to the disc plane E. The disc recess 17 is in particular a bore, wherein the conical section 17a is formed by countersinking the flat side 18b of the disc 4, i.e. a countersunk bore.

[0103] In the illustrated example, the disc recess 17 with the conical section 17a is preferably designed to be rotationally symmetrical to the central axis M, which preferably runs perpendicular to the disc plane E. This rotational symmetry is always assumed below. However, a non-rotationally symmetrical design of the disc recess 17 and / or the conical section 17a can also be provided. The following statements and explanations then apply at least accordingly.

[0104] In the assembled state, an intermediate element 19 is preferably arranged in the pane recess 17, particularly in the region of the conical section 17a. This intermediate element 19 is made of a material, preferably plastic, that is softer or more deformable than the material of the pane 4 and the material of the fitting 5. The intermediate element 19 prevents excessive, point-like loading of the glass, particularly when the pane 4 is made of glass.

[0105] How Fig. 2, Fig. 4A and Fig. 4C, the fastening recess 13 is preferably designed without a thread. It is then preferably not necessary to introduce an internal thread into the fastening recess 13 before screwing it to a washer 4. The fitting 5 can then be manufactured in a particularly simple, quick, and cost-effective manner, since the introduction of an internal thread into the fastening recess 13 is not necessary.

[0106] The fitting 5 preferably has a contact surface 21 for engagement with the pane 4. In particular, the contact surface 21 is formed by the fitting tab 12.

[0107] The fastening recess 13 preferably tapers starting from the contact surface 21, as Fig. 4A and Fig. Show 4C.

[0108] In the Fig. In the embodiment shown in Figure 4A, the fastening recess 13 preferably has a conical inlet section 13a. Starting from the conical section 13a, the fastening recess 13 tapers particularly uniformly.

[0109] In the inlet section 13a, the fastening recess 13 preferably tapers more sharply than in the subsequent section. The taper is preferably uniform in both sections, but changes at the transition between the sections.

[0110] The Fig. The embodiment shown in Figure 4C preferably tapers completely uniformly or does not have the inlet section 13a with a greater taper. Particularly preferably, this is the only difference between the two embodiments.

[0111] The fastening recess 13 tapers particularly evenly, as in Fig. 4A and Fig. 4C is shown.

[0112] The taper of the fastening recess 13 preferably forms an angle of less than 1°, preferably less than 0.75°, more preferably less than 0.5°, in particular approximately or less than 0.4°, with the longitudinal axis L of the fastening recess 13.

[0113] The tapered fastening recess 13 simplifies the screwing in of the screw 12. At the same time, the tapered section forms a demolding slope, allowing the fitting 5 to be easily demolded during production.

[0114] In Fig. 5 shows the screw 14 in longitudinal section in the screwed-in state. Preferably, the screw 14 has a thread 22 formed or produced by non-cutting forming. The thread 22 can be formed in a hot or cold state.

[0115] During the non-cutting forming of a thread 22, no chips are removed. Instead, the required thread 22 is pressed into the screw body. This results in a smooth surface and increased thread strength. This makes it possible to form a screw 14 with a particularly strong thread 22, which creates a particularly stable connection between the screw 14 and the fastening recess 13. The screw-in depth of the screw 14 can thus be reduced, allowing the overall thickness of the fitting 5 to be reduced.

[0116] The term "self-tapping" in this context means that the screw 14 forms its own mating thread 39 or nut thread when screwed into a pre-made hole, in this case the mounting recess 13. Unlike thread cutting, i.e., a machining process, the material structure in the mating thread 39 is not interrupted during thread forming or self-tapping, but rather displaced and work-hardened. This not only saves considerable assembly and manufacturing costs for forming the mating thread 39, but also creates particularly strong and secure connections.

[0117] The screw 14 is preferably designed to form its own counter-thread 39 into the fastening recess 13 without the need for cutting. The material of the fastening recess 13 is preferably displaced and work-hardened when the screw 14 is screwed in, thereby forming a particularly strong and stable counter-thread 39. It is then possible to transmit a particularly high force between the screw 14 and the fitting 5, thereby reducing the screw-in depth and thus the thickness of the fitting 5. At the same time, the self-locking connection provides a captive connection between the screw 14 and the fitting 5.

[0118] The screw 14 preferably has a higher tensile strength and / or a higher modulus of elasticity and / or a higher hardness than the fitting 5.

[0119] In particular, the screw 14 has a modulus of elasticity of more than 100 GPa, more preferably more than 150 GPa, and / or a tensile strength of more than 350 MPa, preferably more than 460 MPa, more preferably more than 500 MPa.

[0120] The tensile strength and / or the modulus of elasticity is / are preferably determined according to DIN EN ISO 898-1:2013-05.

[0121] The fitting 5 or its material preferably has a higher deformability than the screw 14 or its material. However, the screw 14 also preferably has a certain degree of deformability.

[0122] Preferably, the screw 14 is made of metal and / or stainless steel, in particular of A2 steel and / or of X4CrNi18-12, X5CrNi18-10 and / or X2CrNi19-11.

[0123] How Fig. 5 further shows, the screw 12 and / or its thread 22 preferably tapers towards the free end 23, thereby facilitating insertion and / or screwing into the fastening recess 13.

[0124] The taper toward the free end 23 of the screw 14 preferably extends over more than the first two threads 22a and / or fewer than the first eight threads 22a, preferably fewer than the first six threads 22a, more preferably fewer than the first five threads. The term "the first threads" preferably refers to the free end 23, so that the counting of the first threads 22a is preferably based on the free end 23.

[0125] How Fig. As Figure 5 further shows, the taper preferably forms an angle of more than 10° and / or less than 30°, in particular more than 12° and / or less than 25°, relative to the longitudinal axis A of the screw 14. Screwing into the fastening recess 13 can thus be carried out in a particularly simple manner.

[0126] The outer diameter of the screw 14 or its thread 22 thus preferably decreases towards the free end 23.

[0127] The screw 14 preferably has a screw body 24 from which the thread 22 extends in the radial direction. The thread 22 is preferably formed from thread flanks 25 extending radially from the screw body 24.

[0128] Preferably, the screw body 24 tapers towards the free end 23. Alternatively or additionally, the radial extension of the thread flanks 25 decreases towards the free end 23.

[0129] How Fig. 5 further shows, the screw 14 thus preferably has a screw section 26 with a constant diameter in particular and a tapered section 27.

[0130] Due to the initially small radial extension of the thread flanks 25, the forces required to screw the screw 14 into the fastening recess 13 can be reduced without otherwise impairing the strength of the screw connection.

[0131] In Fig. In the screwed-in state shown in Fig. 5, preferably only the foremost or first, in particular the first three, threads 39a introduced into the fastening recess 13 carry a load transmitted by the screw 14.

[0132] The “frontmost threads” or the “first (three) threads” are to be understood here as the threads 39a introduced first in the screwing direction in the fastening recess 13 (in Fig. 5, the rightmost threads 39a). These are therefore preferably the threads 39a located (immediately) at the entrance of the fastening recess 13.

[0133] The further threads 39a of the counter thread 39 preferably carry no load or less than 20%, preferably less than 10%, more preferably less than 5%, of the load acting on the frontmost or first three threads 39a.

[0134] The foremost or first threads 39a are preferably understood to mean less than half of all threads 39a introduced into the fastening recess 13, in particular less than one third of all threads 39a introduced into the fastening recess 13.

[0135] Preferably, a surface pressure of more than 300 N / mm acts on the foremost or first, in particular the first three, threads 39a of the (counter) thread 39 introduced into the fastening recess 13. 2 , preferably more than 400 N / mm 2 , further preferably more than 500 N / mm 2 .

[0136] Alternatively or additionally, when screwed in, a surface pressure of more than 300 N / mm acts on the rearmost, in particular rearmost three, threads 22a of the screw 14 in the screwing direction. 2 , preferably more than 400 N / mm 2 , further preferably more than 500 N / mm 2. The rearmost threads 22a of the screw 14 are to be understood here preferably as the threads 22a which interact with the frontmost threads 39a of the counter-thread 39 introduced into the fastening recess 13 (in Fig. 5 the rightmost threads 22a), in particular the threads 22a immediately adjacent to the screw head.

[0137] Surprisingly, it was found that the above-mentioned values ​​regarding surface pressure also apply when the fitting 5 is made of die-cast zinc, in particular ZnAl4Cu1. In the prior art, surface pressures of up to 250 N / mm 2 possible. By means of the proposed fitting 5 and / or the proposed screw 14 and / or the proposed screw connection, a surface pressure approximately twice as high as in the prior art can thus be achieved.

[0138] Since such a high surface pressure is already achieved with the first thread turns 39a, the screw length or depth of the fastening recess 13 or screw-in depth can be small in order to still achieve a sufficient holding force.

[0139] Due to the high surface pressure and / or the small required screw-in depth, the fitting 5 can be designed to be particularly thin.

[0140] A particularly thin design of the fitting 5 can be achieved if the depth of the fastening recess 13 is less than 120% of the hole diameter 20 of the fastening recess 13.

[0141] The term “hole diameter” in this case refers to the area of ​​the fastening recess 13 which forms the internal thread in the assembled state.

[0142] The term "thin" in this case refers to a small extension of the fitting 5, in particular of the fitting flap 12, transversely, in particular perpendicularly, to the flat side 18a of the pane 4 associated with the fitting 5 in the installed state. A correspondingly thin design is perceived by users as particularly visually appealing. At the same time, a correspondingly thin design of the fitting 5 makes it possible to save material and thus speed up production and / or reduce manufacturing costs.

[0143] In particular, the thickness of the fitting 5 or of the fitting tab 12 associated with the pane 2 is less than 140%, preferably less than 135%, more preferably less than 130%, of the hole diameter 20 of the fastening recess 13.

[0144] The term “thickness” refers in the present case to the extension of the fitting 5 or of the fitting tab 12 assigned to the pane 2 transversely, in particular perpendicularly, to the contact side of the fitting 5 on the assigned flat side 18a of the pane 4 in the mounted state.

[0145] It is also possible that the thickness of the fitting 5 or the fitting tab 12 associated with the pane 2 is less than 125% of the hole diameter 20 of the fastening recess 13.

[0146] In Fig. 4 shows the shower partition 1 in a sectional view through the mounting recess 13 and the panel 4. The mounting recess 13 is preferably designed as a blind hole and preferably has a depth or extension that corresponds to less than 120% and / or more than 105% of the nominal diameter of the screw 14. Due to the small depth or extension of the mounting recess 13, the fitting 5 can be designed to be particularly thin.

[0147] The term “nominal diameter” in this case refers to the outer diameter of the screw 14 in the area of ​​the thread 22, in particular in the screw section 26 outside the taper.

[0148] Preferably, the thickness of the fitting 5 or the fitting tab 12 corresponds to less than 150% and / or more than 110% of the nominal diameter of the screw 14.

[0149] In a particularly preferred embodiment, the screw 14 preferably has a nominal diameter of 8 mm and the fastening recess 13 has a hole diameter 20 of less than 7 mm and / or of more than 6.47 mm, in particular of approximately 6.647 mm.

[0150] In another, likewise preferred embodiment, the screw 14 preferably has a nominal diameter of 6 mm and the fastening recess 13 has a hole diameter 20 of less than 5.2 mm and / or of more than 4.78 mm, in particular of approximately 4.917 mm.

[0151] In Fig. Figure 4A shows the proposed kit 16 in a non-assembled state. To install the shower enclosure 1, the intermediate element 19 can first be inserted into the panel recess 17 or the conical section 17a. The fitting 5 can then be arranged on the flat side 18a of the panel 4. It is also conceivable to perform the two aforementioned steps in reverse order.

[0152] The screw 14 can then be inserted into the disc recess 17 and screwed into the fastening recess 13. When screwed into the fastening recess 13, the screw 14 forms or grooves its own counter-thread 39 in the fastening recess 13. The counter-thread 39 is formed without cutting, in particular by material displacement and / or material hardening. In this way, a particularly strong counter-thread 39 is formed in the fastening recess 13. The screw 14 can preferably be screwed in at least until the screw 13 no longer protrudes beyond the flat side 18b facing away from the fitting 5. Fig. 4B shows the kit 16 or the section of the shower partition 1 formed by the kit 16 in the assembled state.

[0153] Fig. 6 show a screw arrangement 36 in Fig. 6A in the unassembled and in Fig. 6B in the assembled or screwed state. The screw assembly 36 preferably has an element 37 to be fastened. The screw assembly 36 further preferably has a holding element 38 with a fastening recess 13, wherein the holding element 38 can preferably be screwed to the element 37 to be fastened by means of a screw 14 ( Fig. 6A) or screwed ( Fig. 6B).

[0154] How Fig. 6A and Fig. 6B, the retaining element 38 preferably has exactly one fastening recess 13 for screwing to the element 37 to be fastened or the disc 4. It is also possible for the retaining element 38 to have two or more fastening recesses 13.

[0155] The fastening recess 13 can extend completely through the holding element 38 or completely penetrate the holding element 38 or not completely extend through the holding element 38. The fastening recess 13 is then designed, for example, as a blind hole, as in Fig. 6 is shown.

[0156] In the Fig. 6 and in this respect preferred embodiment, the element 37 to be fastened is designed as a pane 4, in particular made of glass.

[0157] To avoid direct contact of the holding element 38 with the element 37 to be fastened, an intermediate bearing element, preferably made of a soft material or plastic material, can be arranged therebetween.

[0158] The element 37 to be fastened preferably has an opening or disc recess 17 with a particularly inclined or conical section 17a with an angle of inclination to the disc plane E. The disc recess 17 is in particular a bore, wherein the conical section 17a is formed by countersinking the flat side 18b of the disc 4, i.e. a countersunk bore.

[0159] In the example shown in Fig. 6, the disc recess 17 with the conical section 17a is preferably designed to be rotationally symmetrical to the central axis M, which preferably runs perpendicular to the disc plane E. This rotational symmetry is always assumed below. However, a non-rotationally symmetrical design of the disc recess 17 and / or the conical section 17a can also be provided. The following statements and explanations then apply at least accordingly.

[0160] In the assembled state, an intermediate element 19 is preferably arranged in the pane recess 17, particularly in the region of the conical section 17a. This intermediate element 19 is made of a material, preferably plastic, that is softer or more deformable than the material of the pane 4 and the material of the retaining element 38. The intermediate element 19 prevents excessive, point-like loading of the glass, particularly when the pane 4 is made of glass.

[0161] The fastening recess 13 of the holding element 38 preferably has a hole diameter of 20. Preferably, the nominal diameter of the screw 14 is smaller than the hole diameter 20.

[0162] The retaining element 38 can be a fitting 5, a retaining strip, a fastening element, or the like. Therefore, all statements regarding the fitting 5 also apply to the retaining element 38, and vice versa.

[0163] Furthermore, all embodiments of the kit 16 or the disc arrangement formed by the kit 16 preferably also apply to the screw assembly 36, and vice versa. In particular, the screw 14 of the screw assembly 36 can be designed like the screw 14 of the kit 16.

[0164] Preferably, surface pressures of more than 300 N / mm also act in the screw arrangement 36 2 , preferably more than 400 N / mm 2 , further preferably more than 500 N / mm 2 , in particular only on the first, particularly preferably the first three, threads 39a of the counter thread 39 introduced into the fastening recess 13.

[0165] The retaining element 38 or the fitting 5 or the fitting half 8 and / or 9 or the fitting tab 12 is / are preferably made of cast metal, in particular die-cast zinc. This enables a simple and rapid production of a stable and rigid retaining element 38 or fitting 5.

[0166] A particularly fast and cost-effective production of the fitting 5 or the retaining element 38 can be achieved if the fitting 5 or the retaining element 38 is made of high-strength die-cast zinc. This allows for a particularly thin design of the fitting 5 or the retaining element 38.

[0167] The term “high-strength” in this case means a tensile strength of more than 280 MPa, preferably more than 300 MPa, and / or a modulus of elasticity of more than 70 GPa, preferably more than 80 GPa.

[0168] The term “tensile strength” refers to the maximum mechanical tensile stress that the material can withstand.

[0169] Preferably, the fitting 5 or the holding element 38 has a tensile strength of more than 300 MPa, preferably more than 320 MPa, and / or an E-modulus of more than 80 GPa, preferably more than 85 GPa.

[0170] Most preferably, the fitting 5 or the holding element 38 has a tensile strength of more than 350 MPa, preferably more than 360 MPa, more than 370 MPa, more than 380 MPa, more than 390 MPa or more than 400 MPa, and / or an E-modulus of more than 90 GPa, preferably more than 100 GPa.

[0171] The tensile strength and / or the modulus of elasticity is / are preferably determined according to DIN EN ISO 6892-1:2020-06.

[0172] The proposed zinc die-casting process allows the strength, particularly the tensile strength, of the fitting 5 or the retaining element 38 to be increased, thereby further reducing the screw-in depth and thus the thickness of the fitting 5 or the retaining element 38. At the same time, this enables cost-effective and rapid production of the fitting 5 or the retaining element 38, even in high volumes.

[0173] The fitting 5 or the retaining element is preferably made of ZnAl4Cu1. This material is characterized by particularly good processability, particularly in the zinc die-casting process. At the same time, components made of this material, especially those manufactured using the zinc die-casting process, exhibit particularly high strength, particularly tensile strength.

[0174] Fig. 7 shows a device 28 for carrying out a corresponding zinc die-casting process.

[0175] The device 28 preferably has a cavity 29 formed by a tool 30. The molten material 32 can be conveyed from a casting chamber 33 into the cavity 29, in particular by means of a casting piston 31.

[0176] The casting chamber 33 can be connected to a storage container 34 for providing molten material 32 at a defined temperature. In this way, the casting chamber 33 can be at least partially filled with molten material from the storage container 34.

[0177] The material melt 32 has in particular a zinc content of more than 94 wt.%.

[0178] The casting chamber 33 can initially be partially filled with molten material 32. During a prefilling phase, the cavity 29 of the tool 30 is preferably partially filled with molten material 32, in particular by means of the casting piston 31. For this purpose, the casting piston 31 can preferably be moved in the direction of movement B.

[0179] When the molten material 32 comes into contact with the wall of the tool 30, the molten material 32 preferably begins to solidify.

[0180] In a subsequent mold filling phase, the cavity 29 is completely filled with molten material 32, preferably using the pouring piston 31. The molded part, here the fitting 5 or the holding element 38, is formed through the cavity 29, and the molten material 32 or the formed molded part is cooled.

[0181] During the cooling process, volume shrinkage of the molded part may occur. To minimize the shrinkage of the molded part, a holding pressure phase follows the mold filling phase, during which high pressure, the so-called holding pressure, acts on the molten material 32 or the molded part.

[0182] Following the holding pressure phase, the tool 30 can be opened and the molded part or fitting 5 or holding element 38 can be demolded.

[0183] Die-cast components have pores P due to their manufacturing process. Large pores P and a high pore volume relative to the component volume can lead to low strength, especially tensile strength, of the component.

[0184] The term "pores" refers to cavities and / or gas inclusions in the casting. Pores P can be completely or at least partially enclosed by the material of the component. Pores P are formed during the casting process and are therefore process-related. In this respect, pores P can be distinguished in particular from notches and / or holes or the like introduced after the casting process.

[0185] Pores P can be divided into shrinkage pores and gas pores.

[0186] Metallic materials have different densities in their liquid and solid states. The transition to the solid state results in a sudden increase in the material's volume.

[0187] The molten material 32 typically solidifies in the area of ​​the wall of the tool 30 and in the sprue area, while the molten material remains liquid inside, creating a volume deficit inside the casting. This creates shrinkage pores.

[0188] Gas pores can arise for thermodynamic or fluid mechanical reasons.

[0189] The solubility of gases is better in liquid metals than in solid metals. Therefore, during solidification of the molded part, gases may be released, leading to the formation of thermodynamically induced gas pores.

[0190] When filling the cavity 29, flow-induced inclusions of gases may occur in the molten material 32. As the molten material 32 cools, the enclosed gas forms pores P—so-called gas pores—which are generally essentially round.

[0191] Preferably, the casting piston 31 is moved at different speeds during the prefilling phase and during the mold filling phase to enable optimal filling of the cavity 29 with molten material 32. At the same time, the formation of pores P can be reduced in this way and a particularly low pore volume can be achieved.

[0192] A particularly high strength, in particular tensile strength, of the fitting 5 or of the holding element 38 can be achieved if the pore volume has a ratio to the total volume of less than 0.05, preferably less than 0.04, more preferably less than 0.035.

[0193] Particularly preferably, pores P in the fitting 5 or in the holding element 38 are smaller than 1 mm, preferably smaller than 0.8 mm, more preferably smaller than 0.7 mm.

[0194] The term “less than 1 mm” in this case refers to a maximum extension of the pores P in any spatial direction of less than 1 mm.

[0195] The small pore volume and / or the small pore diameter preferably lead to a fitting 5 or holding element 38 with a tensile strength of more than 300 MPa or 320 MPa, in particular of more than 350 MPa, 360 MPa, 370 MPa, 380 MPa, 390 MPa or 400 MPa, and / or an E-modulus of more than 80 GPa or 85 GPa, preferably of more than 90 GPa or 100 GPa.

[0196] To avoid turbulence, the material melt 32 is preferably introduced into the cavity 29 of the tool 30 more slowly in the pre-filling phase than in the mold filling phase, so that the pore volume of the fitting 5 or the holding element 38 is less than 5% of the total volume of the fitting 5 or the holding element 38.

[0197] To avoid turbulence within the molten material 32, the casting piston 31 is particularly preferably moved more slowly in the prefilling phase than in the mold-filling phase, so that the pore volume of the fitting 5 or the holding element 38 is less than 5% of the total volume of the fitting 5 or the holding element 38. In this way, the inclusion of gas in the molten material 32 can be reduced and / or prevented. It is then possible to form the fitting 5 or the holding element 38 with particularly few pores and / or a particularly low pore volume, whereby high strength, in particular tensile strength, and stability of the fitting 5 or the holding element 38 can be achieved.

[0198] The speed at which the molten material 32 is introduced into the cavity 29 of the tool 30 is in particular proportional to the speed of the casting piston 31.

[0199] Further preferably, the material melt 32 is introduced into the cavity 29 of the tool 30 at a first speed in the pre-filling phase and at a second speed in the mold filling phase, wherein the second speed corresponds to more than five times, preferably more than eight times, the first speed.

[0200] Preferably, the casting piston 31 is moved at a first speed during the prefilling phase and at a second speed during the mold filling phase. The first speed preferably corresponds to less than one-fifth, preferably less than one-sixth, more preferably less than one-eighth, of the second speed. It is then possible to reduce and / or prevent turbulence within the molten material 32, thereby enabling the formation of a coating 5 or the retaining element 38 with particularly few pores P and / or with a particularly low pore volume.

[0201] The duration of the pre-filling phase is preferably more than 85%, preferably more than 95%, of the duration of the mold filling phase.

[0202] The duration of the pre-filling phase is preferably shorter than the duration of the mold filling phase.

[0203] In the holding pressure phase, a holding pressure of more than 60 MPa and / or less than 100 MPa, preferably more than 70 MPa and / or less than 90 MPa, acting on the material or molded part located in the cavity 29 is preferably generated. The holding pressure can, in particular, reduce and / or prevent the formation of shrinkage pores.

[0204] Preferably, the tool 30 is tempered to a temperature of more than 170°C and / or less than 200°C, in particular to approximately 180°C. In this way, the cooling of the fitting 5 or the holding element 38 can be carried out in a particularly advantageous manner with minimal shrinkage and minimal pore formation. The term "approximately" is understood here to mean a deviation of + / -3°C, preferably + / -2°C.

[0205] The material melt 32 is preferably tempered to a temperature of more than 400 °C and / or less than 450 °C, in particular more than 415 °C and / or less than 425 °C, whereby the processability is improved and at the same time the inclusion of gas in the material melt 32 when filling into the cavity 29 can be reduced and / or prevented.

[0206] The zinc die-casting process is preferably implemented as a vacuum die-casting process. In this vacuum die-casting process, the gases trapped in the molten material 32 as it flows into the cavity 29 of the tool 30 and / or the gases generated during cooling are removed by a vacuum. Accordingly, the formation of pores P can be reduced and / or prevented.

[0207] The device 28 preferably has a vacuum device 35 for generating a vacuum. Using the vacuum device 35, a vacuum can be generated in the cavity 29 of the tool 31, particularly during the prefilling phase and / or the mold filling phase, thereby reducing and / or preventing the formation of pores P and keeping the pore volume particularly low.

[0208] Additionally or alternatively, a vacuum can act on the material melt 32 located in the storage container 34. In this way, gases present in the material melt 32 can be completely or partially removed therefrom, whereby the formation of pores P can be reduced and / or prevented. List of reference symbols: 1 shower enclosure 2 doors 3 Partition wall 4 slices 5 Fitting 6 Vertical edge 7 Vertical edge 8 Fitting half 9 Fitting half 10 Swivel movement 11 Coupling part 12 fitting flaps 13 Mounting recess 13a Entrance section 14 Screw 15 stops 16 Kit 17 Disc recess Section 17a 18a flat side 18b Flat side 19 Intermediate element 20 hole diameters 21 contact surface 22 threads 22a thread (screw) 23 End 24 screw bodies 25 thread flanks 26 screw section 27 Tapering section 28 Device 29 Cavity 30 tools 31 casting pistons 32 Material melt 33 casting chamber 34 storage containers 35 Vacuum device 36 Screw arrangement 37 elements 38 Holding element 39 counter thread 39a Thread (holding element) A Longitudinal axis B Direction of movement E disc plane L Longitudinal axis M central axis QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 20 2020 000 400 U1 [0002, 0014] DE 202 18 620 U1

[0005] AT 519565 A4

[0006] Cited non-patent literature

[0000] DIN EN ISO 898-1:2013-05

[0120]

Claims

[1] Fitting for connection to a pane (4), in particular a door (2) or a partition wall (3), in particular for a shower partition (1), with a fastening recess (13) for screwing to the disc (4), characterized by , that the fastening recess (13) is designed as a threadless blind hole, and / or that the depth of the fastening recess (13) is less than 120% of the hole diameter of the fastening recess (13), and / or that the thickness of the fitting (5) or of a fitting tab (12) associated with the pane (4) is less than 140% of the hole diameter (20) of the fastening recess (13), and / or that the fitting (5) is made of cast metal and has a pore volume with a ratio to the total volume of less than 0.05, and / or that the fitting (5) is made of cast metal and has pores (P) that are smaller than 1 mm, preferably smaller than 0.8 mm. [2] Fitting according to claim 1, characterized by that the fitting (5) is made of high-strength die-cast zinc and has a tensile strength of more than 300 MPa, preferably more than 320 MPa, and / or an E-modulus of more than 80 GPa, preferably more than 85 GPa. [3] Fitting according to claim 1 or 2, characterized by that the fitting (5) is made of ZnAl4Cu1. [4] Fitting according to one of the preceding claims, characterized by that the fitting (5) has a contact surface (21) for contact with the pane (4), and that the fastening recess (13) tapers, in particular uniformly, starting from the contact surface (21). [5] Fitting according to one of the preceding claims, characterized by, the fitting (5) is manufactured according to a zinc die-casting process according to one of claims 31 to 35. [6] Kit for a shower enclosure (1), with a pane (4), in particular a door (2) or a partition wall (3), with a screw (14) and with a fitting (5) with a fastening recess (13) for screwing to the disc (4) by means of the screw (14), characterized by , that the screw (14) has a thread (22) formed by chipless forming, and / or that the screw (14) is self-tapping, and / or that the depth of the fastening recess (13) corresponds to less than 120% and / or more than 105% of the nominal diameter of the screw (14), and / or that the thickness of the fitting (5) is less than 150% and / or more than 110% of the nominal diameter of the screw (14), and / or that the fitting (5) is designed according to one of claims 1 to 5. [7] Kit according to claim 6, characterized by that the screw (14) and / or its thread (22) is tapered towards the free end (23). [8] Kit according to claim 7, characterized by that the taper extends over more than the first two and / or less than the first six threads (22a) of the screw (14), preferably more than the first two and / or less than the first five threads (22a) of the screw (14). [9] Kit according to claim 7 or 8, characterized by that the taper forms an angle of more than 10° and / or less than 30°, in particular more than 12° and / or less than 25°, with respect to the longitudinal axis (A) of the screw (14). [10] Kit according to any one of claims 6 to 9, characterized bythat the screw (14) has a nominal diameter of 8 mm and the fastening recess (13) has a hole diameter (20) of less than 7 mm and more than 6.47 mm. [11] Kit according to any one of claims 6 to 10, characterized by that the screw (14) has a nominal diameter of 6 mm and the fastening recess (13) has a hole diameter (20) of less than 5.2 mm and more than 4.78 mm. [12] Kit according to any one of claims 6 to 11, characterized by that the screw (14) has a higher tensile strength and / or a higher modulus of elasticity and / or a higher hardness or lower deformability than the fitting (5). [13] Kit according to any one of claims 6 to 12, characterized by that the screw (14) is made of metal, in particular stainless steel, particularly preferably of A2 steel and / or of X4CrNi18-12, X5CrNi18-10 and / or X2CrNi19-11. [14] Pane arrangement, in particular shower partition (1), with a disc (4), and a fitting (5) with a fastening recess (13) which is screwed to the disc (4) by means of a screw (14), characterized by , that the screw (14) has a thread (22) formed by chipless forming, and / or that the screw (14) is self-tapping, and / or that the screwing depth of the screw (4) into the fastening recess (13) is less than the nominal diameter of the screw (4), and / or that the depth of the fastening recess (13) corresponds to less than 120% and / or more than 105% of the nominal diameter of the screw (14), and / or that the thickness of the fitting (5) is less than 150% and / or more than 110% of the nominal diameter of the screw (14), and / or that the fitting is designed according to one of claims 1 to 5. [15] Disc arrangement according to claim 14, characterized bythat the disc arrangement was manufactured from a kit (16) according to one of claims 6 to 13. [16] Disc arrangement according to claim 14 or 15, characterized by that only the first, in particular the first three, threads (39a) introduced into the fastening recess (13) carry a load transmitted by the screw (14). [17] Disc arrangement according to one of claims 14 to 16, characterized by that the surface pressure acting on the first, in particular the first three, threads (39a) introduced into the fastening recess (13) is more than 300 N / mm 2 , preferably more than 400 N / mm 2 , further preferably more than 500 N / mm 2 , amounts. [18] Screwing arrangement with an element (37) to be fastened, in particular a disc (4), and a holding element (38) with a fastening recess (13), which is screwed to the element (37) to be fastened by means of a screw (14), characterized by , that the screw (14) has a thread (22) formed by chipless forming, and / or that the screw (14) is self-tapping, and / or that the screwing depth of the screw (4) into the fastening recess (13) is less than the nominal diameter of the screw (4), and / or that the depth of the fastening recess (13) corresponds to less than 120% and / or more than 105% of the nominal diameter of the screw (14), and / or that the thickness of the retaining element (38) corresponds to less than 150% and / or more than 110% of the nominal diameter of the screw (14), that the fastening recess (13) is designed as a threadless blind hole, and / or that the depth of the fastening recess (13) is less than 120% of the hole diameter of the fastening recess (13), and / or that the thickness of the holding element (38) is less than 140% of the hole diameter (20) of the fastening recess (13), and / or that the holding element (38) is made of cast metal and has a pore volume with a ratio to the total volume of less than 0.05, and / or that the holding element (38) is made of cast metal and has pores (P), which are smaller than 1 mm, preferably smaller than 0.8 mm. [19] Screwing arrangement according to claim 18, characterized by that the holding element (38) is made of high-strength die-cast zinc and has a tensile strength of more than 300 MPa, preferably more than 320 MPa, and / or an E-modulus of more than 80 GPa, preferably more than 85 GPa. [20] Screwing arrangement according to claim 18 or 19, characterized by that the holding element (38) is formed from ZnAl4Cu1. [21] Screwing arrangement according to one of claims 18 to 20, characterized bythat the holding element (38) has a contact surface (21) for contact with the element to be fastened (37), and that the fastening recess (13) tapers, in particular uniformly, starting from the contact surface (21). [22] Screwing arrangement according to one of claims 18 to 21, characterized by that the holding element (38) is manufactured according to a zinc die-casting process according to one of claims 31 to 35. [23] Screwing arrangement according to one of claims 18 to 22, characterized by that the screw (14) and / or its thread (22) is tapered towards the free end (23), in particular wherein the taper extends over more than the first two and / or less than the first six threads (22a) of the screw (14), preferably more than the first two and / or less than the first five threads (22a) of the screw (14). [24] Screwing arrangement according to claim 23, characterized bythat the taper forms an angle of more than 10° and / or less than 30°, in particular more than 12° and / or less than 25°, with respect to the longitudinal axis (A) of the screw (14). [25] Screwing arrangement according to one of claims 18 to 24, characterized by that the screw (14) has a nominal diameter of 8 mm and the fastening recess (13) has a hole diameter (20) of less than 7 mm and more than 6.47 mm. [26] Screwing arrangement according to one of claims 18 to 25, characterized by that the screw (14) has a nominal diameter of 6 mm and the fastening recess (13) has a hole diameter (20) of less than 5.2 mm and more than 4.78 mm. [27] Screwing arrangement according to one of claims 18 to 26, characterized by that the screw (14) has a higher tensile strength, a higher modulus of elasticity and / or a higher hardness or lower deformability than the holding element (38). [28] Screwing arrangement according to one of claims 18 to 27, characterized by that the screw (14) and the holding element (38) are each made of a metal. [29] Screwing arrangement according to one of claims 18 to 28, characterized by that only the first, in particular the first three, threads introduced into the fastening recess carry a load transmitted by the screw (14). [30] Screwing arrangement according to one of claims 18 to 29, characterized by that the surface pressure acting on the first, in particular the first three, threads (39a) introduced into the fastening recess (13) is more than 300 N / mm 2 , preferably more than 400 N / mm 2 , further preferably more than 500 N / mm 2 , amounts. [31] Zinc die-casting method for producing a fitting (5) for connection to a pane (4), in particular a door (2) or a partition wall (3), preferably for a shower partition (1), or a holding element (38) for connection to an element (36) to be fastened, in particular a pane (4), wherein in a pre-filling phase a cavity (29) of a tool (30) is partially filled with molten material (32), in particular by means of a casting piston (31), wherein in a subsequent mold filling phase the cavity (29) of the tool (30) is completely filled, in particular by means of the casting piston (31), in particular, wherein a holding pressure is generated in a holding pressure phase following the mold filling phase, characterized by , that the material melt (32) is introduced more slowly into the cavity (29) of the tool (30) in the pre-filling phase to avoid turbulence than in the mold filling phase, so that the pore volume of the fitting (5) or the holding element (38) is less than 5% of the total volume of the fitting (5), and / or that the material melt (32) is introduced into the cavity (29) of the tool (30) at a first speed in the pre-filling phase and at a second speed in the mold filling phase, wherein the second speed corresponds to more than five times, preferably more than eight times, the first speed, and / or that the casting piston (31) is moved more slowly in the pre-filling phase than in the mold filling phase in order to avoid turbulence within the molten material (32), so that the pore volume of the fitting (5) or the holding element (38) is less than 5% of the total volume of the fitting (5), and / or that the casting piston (31) is moved at a first speed in the pre-filling phase and at a second speed in the mold filling phase, wherein the second speed corresponds to more than five times, preferably more than eight times, the first speed, and / or that the duration of the pre-filling phase is more than 90%, preferably more than 95%, of the duration of the mold filling phase. [32] Zinc die-casting process according to claim 31, characterized by that in the holding pressure phase a holding pressure of more than 60 MPa and / or less than 100 MPa is generated, preferably more than 70 MPa and / or less than 90 MPa. [33] Zinc die-casting process according to claim 31 or 32, characterized by that the tool (30) is tempered to a temperature of more than 170 °C and / or less than 200 °C, in particular to approximately 180 °C. [34] Zinc die-casting process according to one of claims 31 to 33, characterized bythat the material melt (32) is tempered to a temperature of more than 400 °C and / or less than 450 °C, in particular more than 415 °C and / or less than 425 °C. [35] Zinc die-casting process according to one of claims 31 to 34, characterized by that the material melt (32) has a zinc content of more than 94 wt.%.

Images