Loudspeaker for mounting on a mounting wall of a motor vehicle and mounting arrangement therefor

Abstract

Loudspeaker (1) for pivotable mounting on a mounting wall (2) of a motor vehicle, comprising a loudspeaker basket (4) which is provided with means (9, 11, 15) for mounting and / or positioning the loudspeaker (1) in the area of ​​at least one mounting opening (3) of the mounting wall (2), wherein the means (9, 11, 15) comprise at least one hook-shaped part (9) and at least one part (11) with an insertion ramp (12) which is designed to interact with the mounting opening (3), characterized in that the part (11) having the insertion ramp (12) is rigidly designed at least in the radial direction of the loudspeaker basket (4) and a surface (13) adjoins the insertion ramp (12), the surface extent of which is substantially parallel to a longitudinal axis (L) of the loudspeaker (1).wherein the part (11) having the insertion ramp (12) is rib-shaped and the loudspeaker basket (4) has a radially inner wall (6) and a radially outer wall (5), wherein the walls (5,6) are integrally connected by the rib-shaped part (11),

Description

[0001] The invention relates to a loudspeaker for pivotable fastening to a mounting wall of a motor vehicle, comprising a loudspeaker basket which is provided with means for fastening and / or positioning the loudspeaker in the region of at least one mounting opening of the mounting wall, wherein the means comprise at least one hook-shaped part and at least one part with an insertion bevel, which is designed to cooperate with the mounting opening.

[0002] Nowadays, almost every motor vehicle is equipped as standard with a music system (radio, CD player, etc.), which requires at least a pair of speakers to be installed in the vehicle interior. To reduce the costs of installing the speakers in the vehicle on an assembly line, the aim is to install the speakers reliably, quickly, and, if possible, without the use of special tools. Speakers are typically mounted on the inside door panel or on a specially designed subframe near a corresponding mounting opening.

[0003] The loudspeakers, especially the midrange and woofers, are constantly exposed to mechanical vibrations during their operation, which arise from the normal driving of the vehicle, but are also caused by the intentional vibrations of the active loudspeaker components. The resulting mechanical vibrations can cause the speaker's position relative to the mounting hole to change, despite the use of specially designed fastening devices such as screws, rivets, or the like, or even after these have been loosened. This can impair proper acoustic performance or lead to unwanted background noise during operation.

[0004] DE 297 11 895 U1 discloses a loudspeaker basket with means for automatic positioning. The means for automatic positioning are designed as hook-shaped fastening tabs provided on the loudspeaker basket, which are supplemented by peripheral locking tabs designed to be elastic in the radial direction. For installation, the loudspeaker basket is inserted on one side with a hook-shaped engagement tab at the edge of a mounting opening and pivoted until the locking tabs engage behind the mounting opening, thus pre-positioning the loudspeaker basket. Centering lugs are also provided for sufficient positioning in the circumferential direction. The loudspeaker is finally secured using screws.

[0005] DE 101 96 314 B4 describes a loudspeaker in which the loudspeaker basket is provided with two hook-shaped parts on one side for mounting purposes. These hooks are snapped into designated mounting openings in a mounting plate (inside door panel) of the motor vehicle. On the other side of the loudspeaker basket, a mounting clip is provided that is flexible in the radial direction of the loudspeaker basket and is guided into a locking position with the mounting plate by pivoting the loudspeaker basket.

[0006] DE 84 02 128 U1 discloses a loudspeaker unit and a loudspeaker mounting opening with the features of the preamble of patent claim 1 and patent claim 6, consisting of a loudspeaker with a loudspeaker basket and a frame. The loudspeaker basket is plate-shaped and has mounting areas on its long sides. First mounting areas are formed by rib-like elevations that open conically toward the edge of the loudspeaker basket. Second mounting areas consist of elongated, concave material recesses adjacent to the first mounting areas. Furthermore, a tongue-like extension formed by a material molding is located on one narrow side of the speaker frame. On the opposite narrow side of the speaker frame, a movable projection is arranged, which is U-shaped in cross-section and flexible in the radial direction. A wedge-shaped projection is molded onto the free, movable leg. The mounting areas on the long sides are used for lateral mounting of the speaker basket to the frame. First, the conical mounting areas are placed with their openings against fixed areas of the frame, and then the speaker basket is swung downward on the opposite long side until movable sections (so-called snap-ins) of the frame engage over the mounting areas. For vertical mounting of the loudspeaker basket, the tongue-like extension of the loudspeaker basket is positioned in a recess of the frame and the loudspeaker basket is pivoted downwards with its opposite narrow side until the movable projection with the wedge-shaped attachment also engages in a recess of the frame.

[0007] Finally, DE 34 24 434 A1 discloses a holder for a loudspeaker in motor vehicles. Specifically, the holder has a retaining ring with an annular wall, wherein the retaining ring is provided with spring tongues evenly distributed over its circumference, protruding upwards from the retaining ring in the axial direction. The spring tongues have radially inward-facing locking lugs, which serve to engage over a ring collar of a loudspeaker positioned on the retaining ring. A support flange of the retaining ring serves to support the ring collar. An axially opposite sealing flange serves to ensure that the holder is sealed against an installation opening in a body wall. Spring tongues protruding downwards from the holder and integrally connected to the retaining ring serve, with locking lugs, to lock the holder into fastening openings in the body.

[0008] The invention is based on the object of providing a loudspeaker which is easy to mount, can reliably hold its position, in particular radially to a mounting opening, and which has a high rigidity.

[0009] This object is achieved by the features of claim 1. Advantageous embodiments or further developments of the invention can be found in the respective subclaims.

[0010] The invention relates to a loudspeaker for pivotable fastening to a mounting wall of a motor vehicle, comprising a loudspeaker basket which is provided with means for fastening and / or positioning the loudspeaker in the region of at least one mounting opening of the mounting wall, wherein the means comprise at least one hook-shaped part and at least one part with an insertion bevel, which is designed to cooperate with the mounting opening.

[0011] According to the invention, the part having the insertion bevel is designed to be rigid at least in the radial direction of the loudspeaker basket.

[0012] This elegantly improves the radial positioning of the speaker basket while allowing for easy insertion. Since no flexible elements are involved in the positioning, the reliability and sustainability of the positioning are also improved.

[0013] According to a further feature of the invention, the insertion bevel is adjoined by a surface whose surface extension runs essentially parallel to a longitudinal axis of the loudspeaker. Such a surface is technically easy to manufacture and can be used excellently for radial support of the loudspeaker frame, for example, against a flange of the mounting opening.

[0014] In implementing the invention, it is further provided that the part having the insertion bevel is rib-shaped. Thus, a structural element often already present in loudspeaker baskets for reinforcement can be used additionally for positioning the loudspeaker basket, thus serving a dual function. Additional parts, such as peripheral locking tabs, which increase the complexity of the loudspeaker and its mechanical vulnerability, need not be provided.

[0015] Finally, as a further feature of the invention, the loudspeaker frame has a radially inner wall and a radially outer wall, with the walls being integrally connected by the rib-shaped part. This technical measure results in a high rigidity of the loudspeaker frame, while the inner wall can also be used to protect the inner, active part of the loudspeaker.

[0016] According to an advantageous embodiment of the inventive concept, two hook-shaped parts and two parts each having an insertion bevel are provided, wherein a hook-shaped part and a part having an insertion bevel can each be connected via an imaginary connecting line such that the connecting lines run parallel to each other. This promotes secure, essentially twist-free guidance of the loudspeaker basket around its longitudinal axis during the assembly process.

[0017] It is also advantageous for improving the anti-twist security if the hook-shaped part has a radial stop which is provided with a radius as seen in the circumferential direction of the loudspeaker.

[0018] It has also proven particularly advantageous if the parts having the insertion bevels are arranged offset from one another in the circumferential direction of the loudspeaker at an angle of approximately 50° to 60°, in particular approximately 55°.

[0019] In order to create space in the radial direction (for example for the hook-shaped parts), at least a section of the inner wall is expediently offset radially inwards relative to a radius of the inner wall.

[0020] The invention further relates to a loudspeaker fastening arrangement comprising at least one loudspeaker with a loudspeaker basket which is fastened to a mounting wall of a motor vehicle with means for fastening and / or positioning the loudspeaker in the region of at least one mounting opening of the mounting wall, wherein the means comprise at least one hook-shaped part and at least one part with an insertion bevel which is designed to cooperate with the mounting opening.

[0021] In order to achieve stable positioning of the loudspeaker, the invention provides that the part having the insertion bevel is designed to be rigid at least in the radial direction of the loudspeaker basket and that a surface adjoins the insertion bevel, the surface extension of which runs essentially parallel to the longitudinal axis of the loudspeaker, the surface being in contact with a radial inner surface of the mounting opening.

[0022] An advantageous further development of the loudspeaker fastening arrangement, which leads to a further stabilization of the fastening arrangement, provides that the radial inner surface of the mounting opening is formed by a flange.

[0023] Further advantages and embodiments of the invention will become clear from a preferred embodiment (best embodiment), which will be explained in more detail with the help of the accompanying figures. Fig. 1 a perspective view of the loudspeaker and associated mounting opening before installation, Fig. 2 a perspective view of the loudspeaker at the beginning of the assembly, Fig. 3 a side view of the loudspeaker at the beginning of the assembly, Fig. 4 a perspective view of the loudspeaker at the end of the assembly and Fig. 5 a perspective view of the loudspeaker from above.

[0024] In Fig. Figure 1 shows the best embodiment of a loudspeaker 1 according to the invention. The loudspeaker 1 is designed such that it can be positioned and fastened to a mounting opening 3 provided for this purpose in a mounting wall 2. The mounting wall 2 is, for example, an inner door panel or a so-called subframe of a motor vehicle. The loudspeaker 1 has a loudspeaker frame 4 (e.g., made of plastic) with a radial outer wall 5 and a radial inner wall 6. The wall 6 encloses an active loudspeaker part 8 (coil and permanent magnet). The walls 5 and 6 are spaced apart by a gap 7. Two rib-shaped parts 11 are arranged in the gap 7, only one of which is visible for reasons of clarity of illustration. The rib-shaped parts 11 have an insertion bevel 12 and an adjoining surface 13, the longitudinal extent of which runs essentially parallel to a longitudinal axis L of the loudspeaker 1.Furthermore, in the lower area of ​​the loudspeaker basket 4, two hook-shaped parts 9 are formed on the radially outer wall 5, which serve to hook into insertion openings 10 provided for this purpose in the mounting wall 2. Each hook-shaped part 9 has an insertion area 24 with a section that is angled in the longitudinal direction L of the loudspeaker basket 4 and continues radially inward to a radial stop 25. In the mounting position, the stop 25 abuts against a radially outer edge 26 of the insertion opening 10. It can also be seen that the mounting opening 3 is surrounded by a flange 16. The mounting opening 3 and the flange 16 have sections 21 in the lower area that are offset radially inward relative to a radius R1 of the mounting opening 3 and the flange 16, respectively. The inner wall 6 of the loudspeaker basket 4 also has a section 20 in the lower area that is offset radially inward relative to a radius R2 of the wall 6.This offers the advantage that more space remains for the arrangement of the hook-shaped parts 9 and these do not have to be built radially so far outwards.

[0025] Now Fig. 2, which shows the loudspeaker 1 at the beginning of its installation on the mounting wall 2. Additionally, a radial molding 14 of the loudspeaker frame 4 with a mounting opening 15 and a corresponding mounting opening 22 of the mounting wall 2 are also numbered, by means of which final fastening can be carried out after the loudspeaker 1 has been installed, for example, using screws. Furthermore, a mounting surface 17 is also numbered, which is provided with a circumferential seal 18.

[0026] Adjacent to surface 13 of part 11 is a radially aligned surface 19 of part 11, which merges into surface 17. It can be seen that the loudspeaker basket 4 with the hook-shaped parts 9 is initially attached to the insertion openings 10 at a specific angle.

[0027] In Fig. 3, this is once again evident from a side view. It is also indicated here that the loudspeaker basket 4 is then pivoted towards the mounting wall 2 (see dashed arrow) until the insertion bevels 12 of the parts 11 abut a boundary edge of the mounting opening 3. If the loudspeaker basket 4 is now pushed further towards the mounting wall 2, the loudspeaker basket 4 shifts vertically downwards slightly (see vertical arrow) towards the final mounting position (due to the insertion bevels 12). Due to the rigidity of the parts 11, at least in the radial direction, the assembly process can be carried out very precisely and safely. The final mounting position of part 11 is indicated by the numbers 12' and 13'. On the one hand, the surfaces 13 bear radially against the flange 16, and on the other hand, the stops 25 bear against the radially outer edge 26 (see Fig. 1 and Fig. 4).

[0028] Fig. 4 shows the loudspeaker 1 fully mounted on the mounting wall 2. It can be seen that a gap 23 remains between the wall 6 and the flange 16, at least in the upper area of ​​the loudspeaker 1, which gap is bridged by the parts 11.

[0029] Finally, in Fig. 5, the loudspeaker 1 is shown again. This illustration clearly shows the geometric arrangement of the hook-shaped parts 9 in relation to the parts 11 having the insertion bevels 12. A hook-shaped part 9 and a part 11 can be connected via an imaginary connecting line V1 or V2 in such a way that the connecting lines V1 and V2 run parallel to one another. This measure contributes to the torsion resistance of the loudspeaker 1 about its longitudinal axis L during the assembly process. Furthermore, it has proven advantageous to arrange the parts 11 offset from one another at an angle α of approximately 50° to 60°, in particular of approximately 55°. Furthermore, it can be seen that the stop 25 of the hook-shaped parts 9 is each provided with a radius r, viewed in the circumferential direction of the loudspeaker 1. This radius r corresponds approximately to a radius of the radially outer edge 26 of the insertion opening 10 (cf. Fig.1). This measure also contributes to improving the torsion resistance of loudspeaker 1. List of reference symbols 1 speaker 2 mounting wall 3 Mounting opening 4 speaker basket 5 radial outer wall of the loudspeaker basket 6 radial inner wall of the loudspeaker basket 7 Space between radial outer and radial inner transformation 8 active speaker part 9 hook-shaped parts 10 Insertion opening for hook-shaped parts 11 part having an insertion bevel 12 insertion bevel 13 Area of ​​Part 11 14 radial forming 15 Mounting hole of the loudspeaker basket 16 flange 17 Mounting surface 18 Seal 19 Area of ​​Part 11 20 Section of the inner wall 6 21 Section of the flange 16 22 Mounting wall mounting hole 23 Distance between inner wall 6 and flange 16 24 Insertion area of ​​the hook-shaped part 9 25 Stop of the hook-shaped part 9 26 radial outer edge of the insertion opening 10 r radius of the stop 25 R1 Radius of the mounting opening or flange 16 R2 Radius of the radial inner wall 6 α Angle between the parts with the lead-in chamfers L Longitudinal axis of the loudspeaker V1, V2 imaginary connecting lines between the hook-shaped parts and the parts with the insertion bevels

Claims

[1] Loudspeaker (1) for pivotable fastening to a mounting wall (2) of a motor vehicle, comprising a loudspeaker basket (4) which is provided with means (9, 11, 15) for fastening and / or positioning the loudspeaker (1) in the region of at least one mounting opening (3) of the mounting wall (2), wherein the means (9, 11, 15) comprise at least one hook-shaped part (9) and at least one part (11) with an insertion bevel (12) which is designed to cooperate with the mounting opening (3), characterized bythat the part (11) having the insertion bevel (12) is designed to be rigid at least in the radial direction of the loudspeaker basket (4) and a surface (13) adjoins the insertion bevel (12), the surface extension of which runs essentially parallel to a longitudinal axis (L) of the loudspeaker (1), wherein the part (11) having the insertion bevel (12) is designed to be rib-shaped and the loudspeaker basket (4) has a radially inner wall (6) and a radially outer wall (5), wherein the walls (5, 6) are connected in one piece by the rib-shaped part (11) [2] Loudspeaker (1) according to claim 1, characterized bythat two hook-shaped parts (9) and two parts (11) each having an insertion bevel (12) are provided, wherein a hook-shaped part (9) and a part (11) having an insertion bevel (12) can each be connected via an imaginary connecting line (V1 or V2) in such a way that the connecting lines (V1 and V2) run parallel to one another. [3] Loudspeaker (1) according to at least one of the preceding claims, characterized by that the hook-shaped part (9) has a radial stop (25) which is provided with a radius (r) when viewed in the circumferential direction of the loudspeaker (1). [4] Loudspeaker (1) according to at least one of the preceding claims, characterized by that the parts (11) having the insertion bevels (12) are arranged offset from one another in the circumferential direction of the loudspeaker (1) by approximately 50° to 60°, in particular by approximately 55°. [5] Loudspeaker (1) according to at least one of the preceding claims, characterized bythat at least one section (20) of the inner wall (6) is offset radially inwards relative to a radius (R2) of the inner wall (6). [6] Loudspeaker fastening arrangement, comprising at least one loudspeaker (1) with a loudspeaker basket (4) which is fastened to a mounting wall (2) of a motor vehicle with means (9, 11, 15) for fastening and / or positioning the loudspeaker (1) in the region of at least one mounting opening (3) of the mounting wall (2), wherein the means (9, 11, 15) comprise at least one hook-shaped part (9) and at least one part (11) with an insertion bevel (12), which is designed to cooperate with the mounting opening (3), characterized byin that the part (11) having the insertion bevel (12) is designed to be rigid at least in the radial direction of the loudspeaker basket (4), and a surface (13) adjoins the insertion bevel (12), the surface extension of which runs essentially parallel to a longitudinal axis (L) of the loudspeaker (1), and the part (11) having the insertion bevel (12) is designed to be rib-shaped, the surface (13) resting on a radial inner surface of the mounting opening (3), and the loudspeaker basket (4) having a radially inner wall (6) and a radially outer wall (5), the walls (5, 6) being connected in one piece by the rib-shaped part (11). [7] Loudspeaker mounting arrangement according to claim 6, characterized by that the radial inner surface of the mounting opening (3) is formed by a flange (16).

Images