EP2931542A2

EP2931542A2 - Assembly comprising a window lifter, a loudspeaker bracket, an impact absorbing element, and an acoustic chamber ready to be installed in a motor vehicle door

Info

Publication number: EP2931542A2
Application number: EP13818280.3A
Authority: EP
Inventors: Stephane FERRAND; Julien ROBUCHON; Stephane Mesaric
Original assignee: Peugeot Citroen Automobiles SA
Current assignee: PSA Automobiles SA
Priority date: 2012-12-17
Filing date: 2013-12-10
Publication date: 2015-10-21
Also published as: WO2014096629A2; CN105142945B; FR2999487A1; CN105142945A; FR2999487B1; WO2014096629A3

Abstract

The invention relates to an assembly comprising a window lifter (25, 26), a loudspeaker bracket (29), and a side impact bar bracket (30), this assembly being in one piece and ready to be installed in a motor vehicle door, characterized in that it also comprises an acoustic chamber (31) in order to improve the low-pitch sounds output by the loudspeaker.

Description

ASSEMBLY COMPRISING A WINDOW LIFTER, A SPEAKER BRACKET, A SHOCK ABSORPTION SPACER, AN ACOUSTIC CHAMBER READY TO BE MOUNTED IN A VEHICLE DOOR

AUTOMOBILE

The present invention relates to an assembly comprising a window lifter, this assembly being in one piece and ready to be mounted in a motor vehicle door.

The invention also relates to a side door of a motor vehicle equipped with an assembly according to the invention.

In known manner, the side doors of motor vehicles are equipped with one or more speakers.

The rendering of the bass sounds emitted by these speakers can be provided by an acoustic chamber called subwoofer installed in the trunk of the vehicle.

Such a box has the disadvantage of reducing the volume available in the trunk and increase the mass of the vehicle.

This increase in mass is related to the presence of the speaker in the subwoofer and the harness that goes from the car stereo to the amplifier that is built into the subwoofer.

To remedy this drawback, some vehicles are equipped with doors whose interior lining comprises an acoustic chamber.

In some cases, the acoustic chamber made in the door trim is associated with a loudspeaker support to form a one-piece assembly.

These solutions have the disadvantage of reducing the volume of the vacuum bag made in the door trim, to reduce the efficiency of low frequencies and to be disturbed by the many parasitic vibrations in the doors.

The purpose of the present invention is to make improvements to the known assemblies above while facilitating their mounting in the doors of motor vehicles. This object is achieved according to the invention, thanks to an assembly comprising a window regulator, a loudspeaker support, a lateral shock absorption spacer support and / or a lateral shock absorption spacer, this assembly being in one piece and ready to be mounted in a motor vehicle door, characterized in that it further comprises an acoustic chamber to improve the bass sounds emitted by the speaker.

Providing a unit comprising a window regulator, a loudspeaker support, a side impact absorbing spacer support and an acoustic chamber in one piece reduces the manufacturing and mounting costs of all.

The integration of an acoustic chamber to the assembly according to the invention not only reduces costs, but also to avoid the disadvantages of a subwoofer placed in the trunk or integrated into the door trim.

According to an advantageous embodiment of the invention, the acoustic chamber is constituted by a conduit connecting said shock absorption spacer and said speaker support.

According to other advantageous features of the invention:

- when the assembly is fixed in a motor vehicle side door, the loudspeaker support is at the front, the window regulator rail is at the rear, the window regulator control mechanism and the shock absorbing spacer are located between the loudspeaker bracket and the window lifter rail;

- The support of the draw handle is common with the support that supports the control mechanism of the window lifter;

- the support which supports the window regulator control mechanism, the loudspeaker support, the lateral shock absorption spacer support and / or the lateral shock absorber spacer and the acoustic chamber form a carrier assembly consisting of a single piece of composite material or molded plastic material.

In a particularly advantageous embodiment of the invention, the assembly according to the invention further comprises a lateral impact reinforcement extending between the lateral shock absorption spacer support and the support. loudspeaker, characterized in that said lateral shock reinforcement is hollow and constitutes said acoustic chamber.

Such an acoustic chamber is large enough to improve the sound reproduction of the speakers.

The addition of such a chamber to the above assembly does not encumber the interior of the door and does not increase the costs of manufacture and assembly since this chamber is present inside the shock reinforcement side.

Preferably, said lateral impact reinforcement extends between two guide rails of the movable pane which are connected to said reinforcement.

According to another embodiment of the invention, the carrier assembly comprises the lateral impact reinforcement.

According to another aspect, the invention also relates to a motor vehicle side door equipped with an assembly according to the invention.

Other features and advantages of the invention will become apparent throughout the description below.

In the accompanying drawings, given by way of nonlimiting examples:

FIG. 1 is a view of the inside face of a motor vehicle door equipped with an assembly comprising a window lifter and a loudspeaker support,

FIG. 2 is a view similar to FIG. 1, the assembly further comprising a shock absorbing spacer,

FIG. 3 is a view similar to FIG. 2, the assembly further comprising a duct constituting an acoustic chamber;

FIG. 4 schematically represents a motor vehicle door equipped with a window lifter assembly, a loudspeaker support, a lateral shock absorber support and a side impact reinforcement,

- Figure 5 is a view similar to Figure 4, the assembly further comprising an acoustic chamber.

Figure 1 shows the lower part of a side door of a motor vehicle and shows the lining 1 sheet steel or light alloy or composite.

References 1a and 1b respectively designate the front edge and the rear edge of the door. The lining 1 of the door comprises an opening 2 in which is mounted a set 3 according to the invention.

This assembly 3 is fixed to the lining 1 of the door at several points such as 4, 5 and 6 by means of screws.

The assembly 3 comprises in the example of Figure 1 a window regulator which itself comprises a control mechanism 7 and a rail 8.

The mechanism 7 comprises an electric motor that controls the movement of a slider connected to the window of the door.

This mechanism 7 is conventional and will therefore not be described in more detail.

The assembly 3 further comprises a loudspeaker support 9 which is connected to the control mechanism 7 of the window regulator and the rail 8 thereof so as to form a single piece.

In the case of Figure 2, was added to the assembly 3 of Figure 1, the spacer 10 of lateral shock absorption.

This spacer 10 extends transversely between the outer panel and the inner lining of the door.

This spacer 10 is connected to the assembly 3 comprising the loudspeaker support 9, the mechanism 7 and the rail 8 of the window lifter so as to form a single piece fixed to the lining 1 of the door.

In the example of Figure 3, the components 7, 8, 9, 10 have been added a conduit 11 which is connected to the loudspeaker support 9 and to the shock absorber spacer 10 so as to constitute an acoustic chamber.

This acoustic chamber forms a resonance chamber for the bass sounds emitted by the speaker.

The conduit 1 1 is physically connected to the support 9 and the spacer 10 to form with the various components of the assembly, according to the invention, a single piece.

The assembly as shown in Figures 1, 2 and 3 further comprises a support 12 of the inner pull handle of the door.

This support 12 is common with the support which carries the control mechanism 7 of the window lifter. As shown in FIGS. 2 and 3, when the assembly according to the invention is fixed in the side door, the support of the loudspeaker 9 is at the front, the rail 8 of the window regulator is at the rear, the control mechanism 7 of the window lifter and the shock absorbing spacer 8 are located between the support 9 of the loudspeaker and the rail 8 of the window lifter.

The assembly thus has a compact shape which is housed in the box of the door formed by the lining 1 and the outer panel.

After mounting the assembly and fixing it to the lining 1 of the door, a gasket not shown in the figures is fixed on the lining 1 and thus masks the assembly of the invention.

The assembly constituted by the support 12 of the handle and the mechanism 7 of the window regulator, the support 9 of the loudspeaker, the spacer 10 and the rail 8 of the window regulator can be molded in one piece of material plastic or light alloy such as aluminum or magnesium.

This plastic is preferably loaded with fibers to increase its rigidity.

This set is thus easy to handle and fit in the door.

In addition, this assembly is both lightweight and rigid since the components of the assembly are integral with each other.

The fact that the assembly comprises a conduit 1 1 forming an acoustic chamber improves the rendering of bass sounds emitted by the speaker and allows:

- to avoid the addition of a subwoofer in the trunk,

to avoid reducing the volume of the inside of the door

- not having to add additional room after mounting the door.

The assembly as shown in Figure 4 has been described in the patent application FR 10 58817 filed October 27, 2010 in the name of the applicant.

This assembly is made in one piece and is attached to the liner 20 of a side door of a motor vehicle at four points 21, 22, 23, 24.

The assembly comprises two rails 25, 26 for guiding the sliders which control the opening and closing of the moving window 27. These slides are moved by a window lifter mechanism which is not shown in detail.

The assembly further includes a side impact reinforcement 28 which extends inclinedly between the rear and the front of the door.

This reinforcement 28 is connected to the rails 25 and 26.

The assembly further comprises a speaker support 29 and a support 30 for the lateral shock absorption spacer.

The loudspeaker support 29 is connected to the front rail 21 and to the front portion of the reinforcement 28.

The support 30 of the lateral shock absorption spacer is connected to the rear portion of the reinforcement 28.

This set is also shown in FIG.

This FIG. 5 differs from FIG. 4 in that the acoustic chamber 31 is made inside the hollow body which constitutes the reinforcement 28 with respect to side impacts.

This acoustic chamber 31 is shown in dashed lines in FIG. 5. The acoustic chamber 31 is connected at the front to a volume adjacent to the loudspeaker fixed to the support 29 and to the rear to a volume adjacent to the support 30 of the lateral shock absorption spacer.

The acoustic chamber 31 thus does not encumber the space adjacent to the reinforcement

28 since it is carried out inside this reinforcement 28.

This also results in a reduction in manufacturing and assembly costs.

Claims

1. An assembly comprising a window regulator (7, 8; 25, 26), a loudspeaker support (9, 29), a lateral shock absorbing spacer support and / or a lateral shock absorption spacer (10, 30), this assembly being of a single piece and ready to be mounted in a motor vehicle door, characterized in that it further comprises an acoustic chamber (1 1, 31) to improve the low tone emitted by the speaker.

2. An assembly according to claim 1, characterized in that the acoustic chamber (1 1, 31) is constituted by a duct connecting said shock absorbing spacer (10, 18) and said support (9, 29) of high- speaker.

3. An assembly according to one of claims 1 or 2, characterized in that when the assembly is fixed in a side door of a motor vehicle, the support (9) of the loudspeaker is at the front, the rail (8 ) the window regulator is at the rear, the window lift control mechanism (7) and the shock absorbing spacer (10) are located between the loudspeaker support (9) and the rail ( 8) of the window regulator.

4. Assembly according to one of claims 1 to 3, characterized in that it further comprises a support (12) of the inner pull handle of the door.

5. An assembly according to claim 4, characterized in that the support (12) of the draw handle is common with the support which supports the mechanism (7) of the control window lifter.

6. An assembly according to one of claims 1 or 2, further comprising a lateral impact reinforcement (28) extending between the lateral shock absorbing spacer support (30) and the high support (29). speaker, characterized in that said reinforcement (28) of side impacts is hollow and constitutes said acoustic chamber (31).

7. The assembly of claim 6, characterized in that said reinforcement

(28) side impacts extends between two guide rails (25, 26) of the movable window which are connected to said reinforcement (28).

8. Assembly according to one of claims 1 to 5, characterized in that the support which supports the mechanism (7) for controlling the window regulator, the loudspeaker support (9, 29), the support of side impact absorbing spacer and / or side impact absorbing spacer (10, 30) and the acoustic chamber (1 1, 31) forms a carrier assembly consisting of a single piece of composite material or molded plastic material.

9. An assembly according to claim 8 and one of claims 6 to 7 characterized in that the carrier assembly comprises the side impact reinforcement (28).

10. Side door of a motor vehicle equipped with an assembly according to one of claims 1 to 9.