Sound insulation and heat insulation encapsulation device for the pedal bracket of a motor vehicle

Abstract

The invention relates to a sound and heat insulating encapsulation device (1) for a pedal support (2) of a motor vehicle (7), the pedal support having at least one pedal (3) pivotally mounted thereon, wherein the encapsulation device (1) has retaining profiles (4) by means of which fixing on the pedal support (2) can be achieved. By moving the sealing plane between the interior of the instrument panel assembly and the footwell (6) from the pedal (3) towards the pedal support (2), a high-quality seal design independent of the pedal can be achieved.

Description

Technical Field

[0001] The present invention relates to a sound-insulating and heat-insulating encapsulation device for a pedal bracket of a motor vehicle. The present invention also relates to a motor vehicle having such a sound-insulating and heat-insulating encapsulation member. Background Art

[0002] A so-called footwell cover is usually arranged between the interior of the cockpit assembly and the driver's cab. The footwell cover covers the transition between the instrument panel and the front edge of the vehicle carpet in the footwell. The footwell cover also closes the footwell at the top. Such a footwell cover not only has a heat-insulating effect but also undertakes a sound-insulating function because the footwell cover forms a double-shell wall in combination with the front wall heat-insulating material and thus makes a significant contribution to the internal space acoustic environment. However, in the driver's footwell, the sound-insulating and heat-insulating encapsulation device of the footwell cover is at least seriously hindered by the pedals.

[0003] In order to still achieve at least sufficient sound insulation and heat insulation here, for example, rubber lips or non-woven fabrics are used, which are closely attached to the corresponding pedal rods and thus seal these pedal rods more or less. However, this only applies to the case where the pedal rods are sword-shaped and narrow. Bellows are also known.

[0004] A sound-insulating assembly for sound-insulating a passenger compartment in a motor vehicle from an engine compartment is known from DE 195 08 968 A1. The sound-insulating assembly includes: a front wall that separates the engine compartment and the passenger compartment transversely to the vehicle longitudinal axis and has at least a passage opening for a pedal mechanism; an instrument panel with instruments extending from the front wall into the passenger compartment; and a console; and a cover plate connected to the console, which extends below the instrument panel to the front wall of the footwell area of the passenger compartment. Here, the cover plate has notches for the pedal mechanism to pass through. In order to achieve improved sound insulation, these notches are sealedly surrounded together with the pedal mechanism parts and sealing rings guided through them.

[0005] A clutch pedal system for a motor vehicle is known from DE 10 2014 217 199 B3. The clutch pedal system has: a pedal carrier with a clutch pedal pivotally mounted on the pedal carrier; and a master cylinder connected on the one hand to the clutch pedal and on the other hand to the pedal carrier. The pedal carrier has a fastening area and an adaptation area, and the master cylinder is connected to the pedal carrier via the adaptation area. The pedal carrier is further designed to be replaceable so as to compensate for different inclinations of the bulkhead and / or the instrument panel carrier by different designs regarding the orientation of the adaptation area of the pedal carrier relative to the fastening area of the pedal carrier while keeping the master cylinder.

[0006] A device in a motor vehicle is known from DE 10 2008 039 622 A1. The device has a vehicle front wall in which a passage opening is provided. The device also has a cover plate for the passage opening, in which an opening is likewise provided. A unit on the engine compartment side is connected to a unit on the passenger compartment side via the opening and the passage opening. Here, the cover plate is arranged sealingly on the unit on the engine compartment or passenger compartment side on the one hand and sealingly on the vehicle front wall on the other hand. Here, the cover plate itself is designed in the form of a bellows and encloses the connecting piece sealingly and without impeding movement.

[0007] A pedal support is known from EP 3 224 086 A1, which has a displaceable pedal and a rubber cheek plate for sealing that is adjacent thereto.

[0008] The disadvantage of the seals at the pedals known from the prior art in the direction of the footwell in a motor vehicle is that these seals either have to be specifically matched to the shape of the pedal or are relatively complex to manufacture. SUMMARY OF THE INVENTION

[0009] Consequently, the present invention relates to the problem of completely redesigning the seal at the pedal in a motor vehicle with respect to the footwell.

[0010] According to the invention, this problem is solved by the subject matter described below. Advantageous embodiments are the subject matter of the respective schemes described below.

[0011] The general idea of the present invention is as follows: shifting the sealing plane for sealing the footwell of a motor vehicle towards the interior of the instrument panel assembly from the actual pedal (such as the clutch or brake pedal) towards the pedal bracket, thereby enabling a significantly improved seal in terms of sound transmission and heat transfer, as well as an unobstructed degree of freedom of movement for the pedal. Therefore, according to the present invention, there is provided a sound-insulating and heat-insulating encapsulation device for such a pedal bracket of a motor vehicle, wherein at least one pivotally mounted pedal is provided on the pedal bracket itself. The encapsulation device has a retaining profile through which fixation on the pedal bracket can be achieved. Thus, such an encapsulation device surrounds the pedal bracket on the rear side facing away from the pedal and thus forms a housing for the pedal bracket, which housing can be sealingly connected to the footwell cover by means of a corresponding flange. This provides a significant advantage that the encapsulation device is independent of the shape (such as the sword shape or width) of the pedal rod and can also be fixed on the pedal bracket without other fastening means (such as bolts, etc.). The encapsulation device can also form a support for the footwell cover by means of its flange. Another significant advantage of the encapsulation device according to the present invention is that the encapsulation device can be fixed on the pedal bracket without changing the pedal bracket, for example, by undercut connection, snap connection or clamping connection, etc. Theoretically, a clamping connection is also conceivable. The encapsulation device itself can not only be sealingly connected to the footwell cover but also to the front wall of the motor vehicle by means of its flange or wall, and thus provides a significantly improved sound-insulating and heat-insulating effect.

[0012] In an advantageous refinement of the solution according to the present invention, the encapsulation device has two encapsulation parts which can be connected to each other by a clamping connection. This embodiment enables a particularly easy installation of the encapsulation device at the pedal bracket, where, for example, the two encapsulation parts are first fixed on the pedal bracket and then fixed to each other by a clamping connection. By loosening the clamping connection between the two encapsulation parts, a significantly simplified disassembly of the encapsulation device can also be achieved. Alternatively, of course, it is also conceivable that the encapsulation device is designed as a one-piece or integral unit, thereby saving warehousing and logistics costs. Such a one-piece encapsulation device can equally achieve a relatively easy installation at the pedal bracket, for example, by snapping the encapsulation device onto the pedal bracket and locking it with the pedal bracket.

[0013] Advantageously, the encapsulation device is made of plastic, in particular designed as a plastic injection molding or a plastic foam part. In particular, being designed as a plastic injection molding enables a cost-effective and high-quality design, in which the sound insulation and heat insulation effects of the encapsulation device can be individually and relatively easily influenced by selecting the corresponding plastic or also by selecting the thickness of the plastic. If the encapsulation device is designed as a plastic foam part, for example, a relatively good heat insulation effect can be achieved while being lightweight by using the plastic foam part.

[0014] In an alternative embodiment of the encapsulation device according to the invention, the encapsulation device has an injection-molded support structure, which is injection-molded with plastic foam. Thus, the plastic support structure forms the carrier of the sound insulation and heat insulation encapsulation device and enables fastening at the pedal bracket, while the plastic foam surrounding the injection-molded support structure achieves the heat insulation effect. Such a hybrid component enables weight-optimized manufacturing and at the same time enables extremely reliable fixing of the encapsulation device at the pedal bracket.

[0015] Advantageously, the encapsulation device has protruding flanges. Through these protruding flanges, contact with, for example, the footwell cover in a motor vehicle or on the front wall of a motor vehicle can be achieved, thereby providing a sound insulation and heat insulation transition to the footwell cover or to the front wall. Here, these flanges are integrally formed with the encapsulation device and are manufactured simultaneously with the encapsulation device.

[0016] The general idea of the present invention further lies in equipping a motor vehicle with an instrument panel assembly, a footwell, and a pedal bracket, the pedal bracket having at least one pivotally mounted pedal extending into the footwell and an encapsulation device corresponding to the foregoing paragraph, wherein the encapsulation device is fixed at the pedal bracket and forms a sound insulation, cold protection, or heat insulation barrier between the interior of the instrument panel assembly of the motor vehicle and the footwell. In such a motor vehicle, particularly good sound insulation and heat insulation sealing can be achieved in the area of the pedal in the footwell of the passenger compartment, wherein the sealing plane is now shifted into the area of the pedal bracket. This provides a significant advantage that various different pedals and pedal rods can be arranged on the actual pedal bracket, for example, depending on the equipment line of the motor vehicle, without having to match the encapsulation device with different pedals, because now the encapsulation device according to the present invention surrounds the pedal bracket in a sound insulation and heat insulation manner. Here, the encapsulation device is usually installed before being placed into the instrument panel assembly, for example, directly after being placed into the pedal bracket.

[0017] Conveniently, a footwell cover is provided, which forms a heat-insulating barrier between the interior of the instrument panel assembly and the footwell, and the footwell cover is connected to the encapsulation device. Here, the sound-insulating and heat-insulating connection between the footwell cover and the encapsulation device can be achieved by means of flanges provided at the encapsulation device, and the footwell cover is placed sealingly on these flanges in the installed state. In this case, the encapsulation device can even serve as a support or carrier for the footwell cover.

[0018] Conveniently, the pedal bracket has ribs and grooves, and the encapsulation device is form-fittingly engaged in these grooves and is thus fixed to the pedal bracket. Such ribs and grooves can also form undercut profiles, which are engaged from behind by corresponding retaining profiles at the encapsulation device, and thus a relatively easy clamping connection or snap connection of the encapsulation device at the pedal bracket can be achieved. However, such a clamping connection or snap connection can not only achieve relatively easy installation, but also relatively easy disassembly in the opposite case, especially for maintenance purposes, thereby reducing maintenance and repair costs.

[0019] Conveniently, the pedal bracket has protruding flanges, and by means of at least one of these flanges, it abuts sealingly against the front wall of the motor vehicle. Thereby, a relatively easy sound-insulating and heat-insulating seal relative to the front wall can be achieved.

[0020] Other important features and advantages of the present invention result from the above-described solutions, the drawings, and the associated description of the drawings.

[0021] Generally, the present invention provides the following technical solutions 1 and 6 herein, and the following technical solutions 2-5 and 7-10 are preferred technical solutions:

[0022] 1. A sound-insulating and heat-insulating encapsulation device (1) for a pedal bracket (2) of a motor vehicle (7), the pedal bracket having at least one pedal (3) pivotally mounted thereon, wherein the encapsulation device (1) has a retaining profile (4) by means of which fixation to the pedal bracket (2) can be achieved.

[0023] 2. The sound-insulating and heat-insulating encapsulation device according to the preceding 1,

[0024] characterized in that

[0025] the encapsulation device (1) is implemented as a one-piece or multi-piece, and in particular has two encapsulation parts (8, 9), which can be connected to each other by a clamping connection.

[0026] 3. The sound-insulating and heat-insulating encapsulation device according to the preceding 1 or 2,

[0027] characterized in that

[0028] The encapsulation device (1) is made of plastic and is particularly designed as a plastic injection molded part or a plastic foam part.

[0029] 4. The sound-insulating and heat-insulating encapsulation device according to claim 1 or 2 above,

[0030] characterized in that

[0031] The encapsulation device (1) has an injection molding support structure, and the injection molding support structure is coated with plastic foam by injection molding.

[0032] 5. The sound-insulating and heat-insulating encapsulation device according to any one of claims 1-4 above,

[0033] characterized in that

[0034] The encapsulation device (1) has a protruding flange.

[0035] 6. A motor vehicle (7), which has an instrument panel assembly, a footwell (6) and a pedal bracket (2). The pedal bracket has at least one pedal (3) pivotally mounted thereon and extending into the footwell (6), and an encapsulation device (1) according to any one of claims 1-5 above. The encapsulation device is fixed to the pedal bracket (2) and forms a sound-insulating and cold-proof barrier between the interior of the instrument panel assembly and the footwell (6).

[0036] 7. The motor vehicle according to claim 6 above,

[0037] characterized in that

[0038] A footwell cover (11) is provided, which forms a cold-proof barrier between the interior of the instrument panel assembly and the footwell (6), and the footwell cover (11) is connected to the encapsulation device (1).

[0039] 8. The motor vehicle according to claim 6 or 7 above,

[0040] characterized in that

[0041] The pedal bracket (2) has a groove (13), and the encapsulation device (1) is engaged with the groove in a form-fitting manner with its holding contour (4) and is thus fixed to the pedal bracket (2).

[0042] 9. The motor vehicle according to any one of claims 6-8 above,

[0043] characterized in that

[0044] The encapsulation device (1) has a protruding flange, and the footwell cover (11) is placed sealingly on at least one flange of the encapsulation device (1) in the installed state.

[0045] 10. A motor vehicle according to one of the foregoing 6 to 9,

[0046] characterized in that

[0047] the encapsulation device (1) is sealingly applied against the flange of the pedal support (2), wherein the flange of the pedal support (2) is in turn sealingly applied against the front wall (14), and thereby a seal between the interior of the instrument panel assembly and the footwell (6) can be achieved.

[0048] It goes without saying that the features mentioned above and those still to be described below can be used not only in the combinations given respectively, but also in other combinations or individually, without departing from the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Preferred embodiments of the invention are shown in the drawings and are described in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components.

[0050] Schematically shown in the drawings respectively:

[0051] Figure 1 a view of a sound and heat insulating encapsulation device according to the invention for a pedal support,

[0052] Figure 2 shown as Figure 1 in, however, a diagram together with the pedal support,

[0053] Figure 3 shown as Figure 2 in, however, an additional diagram together with the footwell cover,

[0054] Figure 4 shown in an enlarged cross-sectional view of a sound and heat insulating encapsulation device according to the invention Figure 3 of

[0055] Figure 5 a cross-sectional view of the encapsulation device is shown. DETAILED DESCRIPTION

[0056] According to Figures 1 to 5 , a sound and heat insulating encapsulation device 1 for encapsulating a pedal support 2 of a motor vehicle 7 (see Figures 2 to 5 ) is shown, wherein the pedal support 2 has at least one pedal 3 pivotally mounted thereon. According to Figures 2 to 5, the pedal support 2 even has a total of two pedals 3 pivotally mounted thereon. The encapsulation device 1 according to the invention also has retaining profiles 4 by means of which a fixation on the pedal support 2 can be achieved, in particular even without additional fastening means (such as bolts). Here, the fixation of the encapsulation device 1 according to the invention on the pedal support 2 can be achieved, for example, by means of a snap connection or a clamping connection, but can also be achieved by means of a clamping connection.

[0057] Generally, with the encapsulation device 1 according to the invention, it is possible to achieve a displacement of the sealing plane between the interior of the instrument panel assembly of the motor vehicle 7 and the footwell 6 away from the actual pedal 3 and towards the pedal support 2. Thereby, it is possible to design the seal independently of the design of the pedal 3 or its pedal rod, which is designed, for example, sword-shaped or even wider.

[0058] Here, the encapsulation device 1 can be designed as a one-piece or as a multi-piece, for example, it can have two encapsulation parts 8, 9 which can be connected to each other by means of a clamping connection. Thereby, a relatively easy installation and removal of the encapsulation device 1 at the pedal support 2 can be achieved, whereby in particular the installation costs and removal costs are significantly reduced during maintenance and repair work.

[0059] The encapsulation device 1 itself can be made of plastic, in particular designed as a plastic injection molding or a plastic foam part, and thereby can be manufactured not only with high quality but also cost-effectively. Alternatively, it is also conceivable that the encapsulation device 1 has an injection-molded support structure which is overmolded with plastic foam. Here, the injection-molded support structure is mainly used for the fixation of the encapsulation device 1 on the pedal support 2, while the plastic foam used for overmolding the injection-molded support structure is used for insulation.

[0060] If one further observes Figures 1 to 5 , it can be seen that the encapsulation device 1 or its encapsulation parts 8, 9 have protruding flanges 10 by means of which, for example, a sound-insulating and heat-insulating connection to the footwell cover 11 (see Figures 3 to 5 ) can be achieved.

[0061] At the same time, the invention includes the motor vehicle 7 described in the foregoing paragraphs, which has an instrument panel assembly, a footwell 6 and a pedal support 2 which has at least one pedal 3 pivotally mounted thereon and extending into the footwell 6 and an encapsulation device 1 corresponding to the foregoing paragraphs. Here, the encapsulation device 1 is fixed on the pedal support 2, in particular by means of a clamping connection, and forms a sound-insulating and cold-proof barrier between the interior of the instrument panel assembly and the footwell 6.

[0062] The footwell cover 11 is placed sealingly on the flange 10 of the encapsulation device 1 (in particular see Figure 5)And can, for example, be adhesively bonded to the flange 10 there. In particular, it can be clearly seen from Figure 5 that the encapsulation device 11 only surrounds the pedal support 2 and is fastened thereto, but never contacts the pedal 3 or its pedal rod and thus never restricts their mobility. Ribs 12 and grooves 13 can also be provided on the pedal support 2, where the encapsulation device 1 engages, for example, into the grooves 13 by means of its holding profile 4 and thus forms an undercut connection with these grooves. Thereby, an extremely easy and at the same time reliable fixing of the encapsulation device 1 on the pedal support 2 can be achieved.

[0063] According to Figures 2 to 4 , it can also be seen that the encapsulation device 1 abuts sealingly against the flange 15 of the pedal support 2, where the flange 15 in turn abuts sealingly against the front wall 14 and thus a seal between the interior of the instrument panel assembly and the footwell 6 can be achieved.

[0064] A major advantage of the encapsulation device 1 according to the invention is that it can be used independently of the shape and form of the pedal 3, since the sealing plane that was previously in the area of the pedal 3 has now been moved to the area of the pedal support 2. At the same time, the encapsulation device 1 can be designed such that it can be fixed to the pedal support 2, for example, by simple snap connections and clamping connections without the need for additional fastening devices, so that no changes need to be made to the previously used pedal support 2 either. Due to the form-fitting connection between the encapsulation device 1 and the pedal support 2, a relatively easy installation and removal can also be achieved. By designing the encapsulation device 1, for example, as a plastic injection molding, the plastic injection molding can also be manufactured in a cost-effective and high-quality manner.

[0065] By moving the sealing plane between the interior of the instrument panel assembly and the footwell (6) from the pedal (3) towards the pedal support (2), a pedal-independent high-quality sealing design can be achieved.

Claims

1. A sound and heat insulation encapsulation device (1) for a pedal bracket (2) of a motor vehicle (7), the pedal bracket having at least one pedal (3) pivotally mounted thereon, wherein the encapsulation device (1) has a retaining profile (4) by means of which fixation to the pedal bracket (2) can be achieved. Wherein the encapsulation device (1) has a protruding flange, and the protruding flange of the encapsulation device (1) is sealingly connected to the footwell cover (11). The encapsulation device (1) seals against the flange of the pedal bracket (2), wherein the flange of the pedal bracket (2) in turn seals against the front wall (14) of the motor vehicle, and thereby a seal between the interior of the instrument panel assembly and the footwell (6) can be achieved.

2. The sound and heat insulation encapsulation device according to claim 1. Characterized in that The encapsulation device (1) is implemented as a single-piece.

3. The sound and heat insulation encapsulation device according to claim 1. Characterized in that The encapsulation device (1) is implemented as a multi-piece, and the encapsulation device (1) has two encapsulation parts (8, 9) which can be connected to each other by a clamping connection.

4. The sound and heat insulation encapsulation device according to any one of claims 1 to 3. Characterized in that The encapsulation device (1) is made of plastic.

5. The sound and heat insulation encapsulation device according to claim 4. Characterized in that The encapsulation device (1) is designed as a plastic injection molding or a plastic foam part.

6. The sound and heat insulation encapsulation device according to any one of claims 1 to 3. Characterized in that The encapsulation device (1) has an injection molding support structure which is overmolded with plastic foam.

7. A motor vehicle (7) having an instrument panel assembly, a footwell (6) and a pedal bracket (2), the pedal bracket having at least one pedal (3) pivotally mounted thereon and extending into the footwell (6) and an encapsulation device (1) according to one of the preceding claims, the encapsulation device being fixed to the pedal bracket (2) and forming a sound and cold insulation barrier between the interior of the instrument panel assembly and the footwell (6).

8. The motor vehicle according to claim 7. Characterized in that A footwell cover (11) is provided which forms a cold insulation barrier between the interior of the instrument panel assembly and the footwell (6), wherein the footwell cover (11) is connected to the encapsulation device (1).

9. The motor vehicle according to claim 7 or 8. Characterized in that The pedal bracket (2) has a groove (13), and the encapsulation device (1) engages in the groove in a form-fitting manner with its retaining profile (4) and is thereby fixed to the pedal bracket (2).

10. The motor vehicle according to claim 7 or 8. Characterized in that The encapsulation device (1) has a protruding flange, and the footwell cover (11) is placed in a sealed manner on at least one protruding flange of the encapsulation device (1) in the installed state.

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