Vehicle door

Abstract

A vehicle door (2) with a pane (10) divided into two parts in the area of ​​a separation joint (11), comprising a first pane part (10a) fixedly connected to the vehicle door (2) and a second pane part (10b) retractable into a door body (8) of the vehicle door (2) by means of a lowering and lifting device, wherein the two-part pane (10) is made of a plastic, and wherein at least one stiffening element (16) is assigned to the second pane part (10b), characterized in that a pane seal (22) is arranged in said separation joint (11) with a first sealing part (22a) attached to the first pane part (10a) and a second sealing part (22b) corresponding to the first sealing part (22a) and attached to the second pane part (10b), wherein the first sealing part (22a) is formed by an elastomeric sealing profile (24) designed as an open hollow profile is,which is a plastic injection-molded component (26) serving to stiffen the first disc part (10a) and which is injection-molded onto the first disc part (10a) in a lower edge section (25) of the first disc part (10a) by means of at least one retaining web (27) extended from the first disc part (10a) and is fixed or definable by form-fit, force-fit and / or material-fit connection, and wherein the second sealing part (22b) is formed by a sealing profile (30) which can be inserted into the elastomeric sealing profile (24) of the first sealing part (22a) and which is fixed or definable onto the second disc part (10b) in an upper edge section (32) by means of at least one clip element (31).

Description

[0001] The invention relates to a vehicle door, in particular a vehicle side door, with a pane divided into two parts in the area of ​​a separation joint, with a first pane part fixedly connected to the vehicle door and a second pane part that can be lowered into a door body of the vehicle door by means of a lowering and lifting mechanism.

[0002] Such a vehicle door is known, for example, from WO 82 / 03105 A1 and FR 2839020 A1. The panes of these vehicle doors are made of mineral glass, which, while relatively strong and stable, is also relatively heavy. To counteract this disadvantage of the high weight of a vehicle window, it has been known for some time to manufacture vehicle windows from a suitable plastic. Polycarbonate, for example, is used as a plastic, which is characterized by high strength, impact resistance, stiffness, and hardness, and is resistant to weathering, water, salts, and many mineral acids. Nevertheless, vehicle windows made of plastic require a certain increased material thickness to achieve sufficiently high stability and strength. This is where the invention described below comes in.

[0003] From the generic DE 198 46 643 A1, a vehicle door is known with a pane divided into two parts in the area of ​​a separation joint, with a first pane part fixedly connected to the vehicle door and a second pane part that can be lowered into a door body of the vehicle door by means of a lowering and lifting device, wherein the two-part pane is made of a plastic, and wherein at least one stiffening element is assigned to the second pane part.

[0004] From DE 32 09 933 A1, a side window is known which has a fixed part and a movable part. In the area of ​​a separation joint between the two, the fixed part of the side window is framed by a connecting profile which, forming a reinforcing frame, is provided with a rebate into which an upper edge of the movable part of the side window can be inserted in such a way that, in the closed position, the corresponding edges of the two window parts meet buttressively.

[0005] From DE 100 61 149 A1, a movable side window made of plastic, in particular polycarbonate, is known, which is provided with a stiffening or reinforcing element. According to one embodiment, the side window has a reinforcing frame formed from a metal strip or from an extruded aluminum or plastic profile. In a closed position, the side window with the reinforcing frame rests against a sealing element which is attached to the motor vehicle.

[0006] From DE 197 06 043 A1 a plastic disc for a motor vehicle door is known, which consists of intersecting partial discs, wherein one partial disc forms a carrier disc with a guide in which the second disc is guided.

[0007] A side window for vehicles made of a synthetic resin, such as polycarbonate, is also known from DE 690 14 026 T2.

[0008] The object of the invention is to create a vehicle door, in particular a vehicle side door, with a pane made of plastic that is divided into two parts in the area of ​​a separation joint, which is further optimized with regard to a sufficiently high stability and strength with respect to its weight for the application on vehicles.

[0009] Starting from a vehicle door, in particular a vehicle side door, with a pane divided into two parts in the area of ​​a separation joint, with a first pane part fixedly connected to the vehicle door and a second pane part that can be lowered into a door body of the vehicle door by means of a lowering and lifting device, wherein the two-part pane is made of a plastic, and wherein at least one stiffening element is assigned to the second pane part, the stated problem is solved by arranging a pane seal in said separation joint, comprising a first sealing part attached to the first pane part and a second sealing part corresponding to the first sealing part and attached to the second pane part, wherein the first sealing part is formed by an elastomer sealing profile designed as an open hollow profile.which is a plastic injection-molded component serving to stiffen the first disc part and which is injection-molded onto the first disc part in a lower edge section thereof, with at least one retaining rib extending from the first disc part, and wherein the second sealing part is formed by a sealing profile that can be inserted into the elastomeric sealing profile of the first sealing part and which is fixed or fixable to the second disc part in an upper edge section thereof by means of at least one clip element.

[0010] This has the advantage that only areas of the window subject to higher or very high stress are reinforced. Such areas include, in particular, the guide rails for the retractable window in the corresponding sliding guides of the vehicle door, as well as the window's connection points for the lowering and lifting mechanism. This measure is especially advantageous because it combines a sealing effect against water ingress, etc., into the vehicle's passenger compartment with a reinforcement of the first window section, resulting in material and cost savings. Furthermore, this measure allows for easy replacement of the second sealing section, for example, due to wear and tear.

[0011] The dependent claims describe preferred further developments or embodiments of the invention.

[0012] The design stipulates that at least one stiffening element is injection-molded onto the second disc section using a proven plastic injection molding process. A plastic injection molding process, a further development of injection molding, is understood to be a method in which the molten plastic is injected as a so-called "batch" into a largely unpressurized, not completely closed mold, which is only fully closed during the solidification process. The closing pressure, which builds up uniformly during this process, ensures the final shaping of the stiffening element. Accordingly, this process is characterized by a change in the cavity volume of the mold during the injection and / or holding pressure phase.This measure results in a particularly strong and durable bond between the second disc part and the stiffening element, and, with regard to the application of vehicle discs, in an optically flawless surface.

[0013] In a further development of the invention, it is further provided that the at least one stiffening element has one or more stiffening webs or ribs or is formed by one or more stiffening ribs or webs, by means of which a particularly high stiffening effect can be achieved that is locally limited to the highly or extremely stressed areas of the second disk part.

[0014] As the invention further provides, the first pane section is bonded to the vehicle door at its edge sections. Such a joining connection is simple and cost-effective.

[0015] To ensure the stability and strength of the first pane section in these edge sections, they have an injection-molded plastic injection-molded component that increases the overall cross-section, onto which an adhesive bead is then applied to bond the first pane section to the vehicle door.

[0016] Preferably, the vehicle windshield in question is made of a polycarbonate which, as already mentioned in the introduction, is characterized by high strength, impact resistance, stiffness, and hardness, and is resistant to weathering, water, salts, and many mineral acids. It is advantageous to also make at least one stiffening element of the second windshield section and / or the aforementioned injection-molded plastic components used for stiffening from a polycarbonate.

[0017] The invention is explained in more detail below with reference to the exemplary embodiments schematically depicted in the drawings. However, it is not limited to these embodiments, but encompasses all embodiments defined by the claims. For the purposes of this description, terms such as "front," "rear," "top," "bottom," and terms with similar meanings, including "right" and "left," are used in the manner commonly employed to indicate direction on a vehicle. The drawings show: Fig. 1 a perspective side view of a vehicle equipped with a vehicle door designed according to the invention, Fig. 2 a single view of a two-part pane of the vehicle door essential to the invention according to Fig. 1 (Exterior view), Fig. 3 an exploded view of the vehicle window according to Fig. 2, Fig. 4 the cut “II” after Fig. 1, Fig. 5 the cut “II-II” after Fig. 1, Fig. 6 an interior view of the vehicle window after Fig. 2, Fig. 7 a perspective single view of a lower first part of the vehicle windscreen Fig. 6, Fig. 8 the cut “III-III” after Fig. 7, Fig. 9 the detail “Z” after Fig. 8, Fig. 10 the detail “Y” after Fig. 8, Fig. 11 the cut “IV-IV” after Fig. 7, Fig. 12 the detail “X” after Fig. 11, Fig. 13 the detail “W” after Fig. 11, and Fig. 14 a detailed representation of a first sealing part of a disc seal arranged in a separation joint of the vehicle disc.

[0018] Fig. Figure 1 shows the front left side area of ​​a vehicle 1, in this case a passenger car, with a front left vehicle door 2, accordingly a vehicle side door, which is hinged in the manner of a wing door in pivot bearing points 3, 4 of the vehicle body 5, viewed in the direction of travel 6 of the vehicle 1, so as to pivot forwards and upwards. The vehicle door 2 forms a door body 8 below the sill line 7 of the vehicle 1 and a window frame 9 above the sill line 7. A front right vehicle door, not shown here, is largely identical in design to the front left vehicle door 2.

[0019] Within the formed window frame 9 of the vehicle door 2, a two-part pane 10 is arranged. The pane 10 has an upper first pane part 10a, which is fixedly connected to the vehicle door 2 or its window frame 9 ( Fig. 1, Fig. 2 to Fig. 3) The aforementioned first disc part 10a consists of a plastic, preferably a polycarbonate, for example a polycarbonate available on the market under the brand name Lexan® GLX 143. The advantages of such a plastic have already been described in detail above.

[0020] A second pane section 10b, preferably also made of a plastic, in particular of a polycarbonate of the aforementioned type, is arranged below a dividing joint 11 that separates the pane 10. According to this embodiment, the dividing joint 11 extends from the sill line 7 approximately in the middle of a lower first frame section 9a of the window frame 9, which runs approximately horizontally in the longitudinal direction (x-direction) of the vehicle, curving upwards and backwards towards the rear of the vehicle and ending at a second frame section 9b, which is arranged at the rear of the vehicle next to the vehicle door 2 and runs in the vertical direction (z-direction) of the vehicle (see in particular the following). Fig. 4 and Fig. 5) The first and second frame sections 9a, 9b form a closed window frame 9 by means of an upper, curved third frame section 9c connected to them. According to this embodiment, a further vehicle window 12, fixed to the vehicle body, is attached to the rear of the vehicle window 10 arranged in the window frame 9, and is attached to the vehicle body 5 by adhesive bonding ( Fig. 1).

[0021] The second pane section 10b is designed to be retracted into the door body 8 by means of a lowering and lifting device, not shown in the drawing, which is operated primarily electromechanically. The second pane section 10b is guided and supported, firstly, in an upper, approximately horizontal guide slot in the door body 8 (not shown in the drawing) and, secondly, by a lateral edge section 13 arranged at the rear of the second frame section 9b. The frame section 9b has one or more guide and sealing profiles 14 for this purpose (see in particular the figure). Fig. 5) The second disc part 10b has a lower edge section 15 to which the lowering and lifting device is connected.

[0022] Both the lateral and the lower edge sections 13, 15 of the second disc part 10b are subject to increased static and dynamic loads, particularly during its operation. To accommodate this, according to the Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12 to Fig. 13 a stiffening element 16 is assigned to the second disc part 10b in the area of ​​these edge sections 13, 15, which consists of a plastic, preferably a polycarbonate and is injection molded onto the inside of the second disc part 10b by a plastic injection molding process.

[0023] According to the present embodiment, the stiffening element 16 forms a closed surface extending over the aforementioned edge sections 13 and 15. In relevant tests, the closed surface had an exemplary thickness of approximately 0.5–0.8 mm, resulting in a local increase in material thickness and, consequently, a local increase in the stiffness of the second disk section 10b. However, the invention is not limited to this material thickness of the stiffening element 16. This thickness can, of course, vary considerably depending on the boundary conditions to be considered, such as, in particular, the initial material thickness of the second disk section 10b, the material chosen for it, etc.

[0024] In the lower edge section 15 of the second disc part 10b, several stiffening webs or ribs 17 are also injection-molded, in this case, for example, arranged crossed to each other, which advantageously lead to a further increase in the stiffness of the second disc part 10b in the connection area of ​​the lowering and lifting device.

[0025] How especially the Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12 to Fig. As can be seen from Figure 13, the second disc part 10b also has webs 18 on its surface facing away from the stiffening element 16 in the area of ​​the lower edge section 15. These webs advantageously serve to stiffen the disc, but can also be used for the precise positioning and attachment of the lowering and lifting device to the second disc part 10b. In this case, the webs 18 are formed integrally with the second disc part 10b, i.e., they are formed or molded onto it during the injection molding process for manufacturing the second disc part 10b.

[0026] As already stated above, the first pane section 10a is permanently connected to the vehicle door 2, or rather its window frame 9, by means of adhesive bonding. The edge sections 19 provided for this purpose also have a surface-shaped, injection-molded plastic component 20, serving to stiffen the first pane section 10a, with a thickness of approximately 0.5 to approximately 0.8 mm. However, depending on the prevailing boundary conditions, such as the initial material thickness of the first pane section 10a, the material chosen for it, etc., these dimensions can vary considerably (see especially...). Fig. 4, 6, 8-13). A bead of adhesive 21 is applied to these edge sections for the material-bonded connection of the first pane part 10a with the window frame 9 of the vehicle door 2 ( Fig. 4).

[0027] How especially the Fig. As can be seen further in Figures 1 to 3, 6, 8, 11 and 14, an elongated disc seal 22 is arranged in the separation joint 11 between the first and second disc parts 10a, 10b. This disc seal 22 is formed by a first sealing part 22a attached to the first disc part 10a and by a second sealing part 22b corresponding to the first and attached to the second disc part 10b.

[0028] The first sealing element 22a is formed by an elastomeric sealing profile 24 designed as an open hollow profile with sealing lips 23. The elastomeric sealing profile 24 is fixed to a plastic injection-molded component 26, which serves to stiffen the first disc part 10a and is injection-molded onto it in a lower edge section 25, by means of at least one retaining web 27 projecting from the first disc part 10a. Fig. 8, Fig. 11, Fig. 14). According to Fig. 14 The elastomeric sealing profile 24 is positively locked to locking lugs 28 of the retaining web 27. However, the invention also encompasses force-fit or material-fit joining measures or any combination of these joining measures.

[0029] How the Fig. 8, Fig. 11 and Fig. As can be seen from Figure 14, the plastic injection molding component 26, including the retaining web 27, is injection molded onto a web contour 29 formed in one piece with the first disc part 10a in the aforementioned lower edge section 25, resulting on the one hand in an improved bond between the first disc part 10a and the plastic injection molding component 26, and on the other hand in a further improved stiffening of the first disc part 10a and, in the form-fitting connection with the second disc part 10b (closed or raised second disc part 10b) in an improved stiffening of the entire disc 10.

[0030] The aforementioned positive locking between the first and second disc parts 10a, 10b is achieved by the fact that, when the second disc part 10b is raised, the second sealing part 22b positively engages with the elastomer sealing profile 24 of the first sealing part 22a. The second sealing part 22b has, according to Fig. 3 a long sealing profile 30 made, for example, of an elastomer, which is fixed to the second disc part 10b in an upper edge section 32 by means of at least one long clip element 31, in this case made of a spring-elastic plastic material. To further improve the hold between the second sealing part 22b and the second disc part 10b, the clip element 31 is additionally guided around the rear edge 33 of the second disc part 10b and clipped accordingly.

[0031] As regards the stiffening element 16 and the injection-molded plastic components 20, 26 serving for stiffening, these are preferably also made of a polycarbonate, for example, a polycarbonate available on the market under the brand name Cycoloy® XCN 830. The plastic or polycarbonate used in this respect is preferably dark, in particular black, which advantageously conceals the connection points for the lowering and lifting device, the adhesive joints, and the guide sections.

[0032] It is known in practice to provide plastic panes 10 with a surface coating that, for example, prevents the penetration of heat radiation resulting from sunlight into the vehicle 1 and / or creates a harder surface of the pane 10. To ensure an optimal coating process in the wet process, the stiffening webs or ribs 17 are designed to allow the surface coating to run off, for example, by providing corresponding radii at the base of the web or rib, by making the stiffening webs or ribs 17 taper from the base of the web or rib, and / or by providing drainage openings in the stiffening webs or ribs 17 (not shown in the drawing). Reference symbol list 1 vehicle 2 vehicle doors 3 pivot bearing points 4 pivot bearing points 5 Vehicle body 6 Direction of travel 7 Parapet line 8 door bodies 9 window frames 9a first framework section 9b second framework section 9c third framework section 10 slices 10a first disc part 10b second disc part 11 Separation joint 12 Vehicle window 13 lateral edge section (second disc part 10b) 14 Guide and sealing profile 15 lower edge section (second disc part 10b) 16 stiffening element 17 stiffening webs / ribs 18 bridges 19 edge sections for gluing (first disc part 10a) 20 Plastic injection molding component (first disc part 10a) 21 Glue beet 22 Disc seal 22a first sealing part (first disc part 10a) 22b second sealing part (second disc part 10b) 23 sealing lips 24 Elastomeric sealing profile 25 lower edge section (first disc part 10a) 26 Plastic injection molding component (first disc part 10a) 27 landing stage 28 Rastnase 29 Bridge contour (first disc part 10a) 30 Sealing profile (second sealing part 22b) 31 clip elements 32 upper edge section (second disc part 10b) 33 Edge (second disc part 10b)

Claims

[1] Vehicle door (2), comprising a pane (10) divided into two parts in the area of ​​a separation joint (11), comprising a first pane part (10a) fixedly connected to the vehicle door (2) and a second pane part (10b) which can be lowered into a door body (8) of the vehicle door (2) by means of a lowering and lifting device, wherein the divided pane (10) is made of a plastic, and wherein at least one stiffening element (16) is assigned to the second pane part (10b), characterized by, that in said separation joint (11) a disc seal (22) is arranged with a first sealing part (22a) attached to the first disc part (10a) and a second sealing part (22b) corresponding to the first sealing part (22a) and attached to the second disc part (10b), wherein the first sealing part (22a) is formed by an elastomeric sealing profile (24) designed as an open hollow profile, which is or can be fixed to a plastic injection-molded component (26) serving to stiffen the first disc part (10a) and which is injection-molded onto the first disc part (10a) in a lower edge section (25) of the first disc part (10a) by means of at least one retaining web (27) projecting from the first disc part (10a) by means of a form-fit, force-fit and / or material-fit connection, and wherein the second sealing part (22b) is formed by a The sealing element (22a) forms an insertable sealing profile (30),which is fixed or definable to the second disc part (10b) by means of at least one clip element (31) in an upper edge section (32). [2] Vehicle door (2) according to claim 1, characterized by , that at least one stiffening element (16) is made of a plastic and is injection molded onto the second disc part (10b) using a plastic injection molding process. [3] Vehicle door (2) according to claim 1 or 2, characterized by that the at least one stiffening element (16) has one or more stiffening webs or ribs (17) or is formed by one or more stiffening ribs or webs (17). [4] Vehicle door (2) according to one of claims 1 to 3, characterized by , that the first disc part (10a) is bonded to the vehicle door (2) in edge sections (19) of the same. [5] Vehicle door (2) according to claim 4, characterized by, that the said edge sections (19) of the first disc part (10a) have a plastic injection molding component (20) which serves to stiffen the same and is injected onto the edge sections (19), onto which an adhesive bead (21) is applied. [6] Vehicle door (2) according to one of claims 1 to 5, characterized by , that the disc (10) is made of polycarbonate. [7] Vehicle door (2) according to one of claims 1 to 6, characterized by , that at least one stiffening element (16) and / or the said injection-molded plastic components (20, 26) serving to stiffen are made of polycarbonate.

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