Patent Application
20080116722
The present invention relates to a supporting module for vehicle doors and the mounting procedure for said module, in which said module incorporates the usual functional elements provided in motor vehicle doors in order to simplify the mounting tasks.
This module is characterised by the fact that the door trim itself acts as the supporting element.
The module is also characterised in that the trim does not provide the sealing function; instead, it incorporates at least one element meant to establish a sealing by covering one or some of the main openings of the inner plate of the door box.
The inner plate of the box has, in addition to the minor opening housing devices such as the speaker, at least one main opening needed to mount the supporting module and its components. This opening (or openings) is covered by one or several sealing elements.
It characterizes the fact that the sealing element has an individual attachment system, not external, for its attachment to the door box. Attaching this element permanently separates the wet and the dry area by a sealing.
The dry area has the same conditions as the vehicle interior and lies between the trim and the inner face of the inner plate of the door box, whose main openings are covered by the speaker, the plugs and mainly by the sealing element(s). The wet area corresponds to the box area between the outermost plates.
It characterizes a special configuration of the module adapted to the openings of the inner plate of the door box that facilitate the mounting and removal operations of the elements that the module incorporates on the door, as well as providing a sealing.
The module is characterised in that it is free of all structural responsibilities, which fall on the door itself.
This invention is characterised in that it allows to attach the sealing element to the door box space in different attachment relationships with the trim.
Also pertaining to the invention is the procedure for mounting the module and its elements on the door, in which the main opening(s) of the door box plate that is (are) closed by the sealing element(s), together with the opening of the supporting module that houses the insert, allow the independent mounting and removal of each functional element of the door.
Supporting modules for vehicle doors incorporating several functional elements, such as a speaker, lock, window lift, etc. are known in the state of the art.
These supports may have merely supporting roles or may additionally have structural roles, reinforcing the door.
Supporting modules are employed placed in the door box which are then covered by the trim. Also known are supporting trim panels that require the use of panels to separate the dry and the wet area.
In any case, it is always necessary to ensure the seal between the dry and the wet area, for which several solutions are also known.
Worth mentioning are the following documents, cited as solutions to the above:
Patent WO03031233 relates to a trim door module that incorporates several functional elements (such as a speaker, door lock, etc.) to which is attached a flexible sheet that acts as a shield against water passage to provide a sealing. This flexible sheet is attached to the door module by an adhesive and is provided with a sealing gasket on all or part of the perimeter of the water shield. It also has a peripheral shape similar to that of the trim module.
U.S. Pat. No. 6,510,657 relates to a supporting module for vehicle doors that supports functional elements such as the window lift, speaker or lock. Said module is formed by two panels joined by a rigid structure, which are placed in the housing provided for such purpose on the inside of the door with a configuration similar to that of the modules, so that they fit in perfectly and are sealed to provide a waterproof union.
Another example is U.S. Pat. No. 6,767,049, which relates to a trim panel for vehicle doors to which a panel is attached that acts as a water shield preventing water to pass from the outside of the vehicle to its interior compartment, having a similar configuration to the panel. This waterproof shield is sealed to the trim by an adhesive union and is provided with several orifices, which are also surrounded by a sealing adhesive, which allow mounting the various functional elements typically incorporates in vehicle doors.
U.S. Pat. No. 5,904,002 relates to a structural supporting module for motor vehicle doors. It is a trim module that supports functional elements such as the lock, window lift, speaker and switches, but which requires an additional panel to provide a sealing. It is a sheet with a similar configuration to that of the supporting panel that is joined to it by an adhesive.
On another hand, the known solutions used to obtain a seal of the door are quite varied.
In other cases, the solution employed to obtain a seal consists of including a structural element attached to a large opening of the door. This element, generally known as a module carrier plate, is structural because the door opening is large, so that the door plate cannot fulfil a sufficiently large structural function to provide the required strength. Some examples of solutions similar to including a module carrier plate are described in patents D928685, U.S. Pat. No. 6,571,515 and U.S. Pat. No. 6,510,657.
Patent WO0176900 uses an injected element meant to cover a small opening in order to seal the door opening. This element is in turn a support for various door components, as it is exposed and includes components that are projected towards the interior of the vehicle. This element is not connected in any way to the trim; in addition, its location on the door does not allow integrating any function other than an armrest. The space it covers on the door does not allow to mount elements in the wet area such as window lift guides or to place the lock in it.
Although they provide a seal of the door, all of these solutions have several drawbacks. Solutions employing flexible sheets require the attachment of all the points of the perimeter, or alternatively the support of an element that is more rigid than the sheet, also requiring the plate on which they rest to be free of dust and grease to ensure its adherence.
In those inventions that use a module carrier plate this element, in addition to implying an additional piece, is a stiff element of large size, weight and cost. It also requires a large opening in the door, which weakens it so that the module carrier plate must provide the stiffening function. In addition, given its great weight and size it is cumbersome to handle.
The present invention describes a trim door module that incorporates several functional elements of the door and lacks any structural responsibilities.
The present invention facilitates the mounting and removal operations of the panel and the various functional elements incorporated, and ensures a sealing in a simple manner by incorporating a sealing element that is directly attached to the door housing.
The present invention relates to a supporting trim module for vehicle doors and to the mounting procedure for said module and the elements it incorporates. The door trim is an element made of a flexible material, preferably plastic, which is not structural and incorporates several functional elements of the door.
In a conventional motor vehicle door two differentiates areas are normally defined: the dry area and the wet area, as indicated below.
The dry area is generally located between the face of the door box nearest the interior compartment and the door trim. This area has the same conditions as the interior compartment of the vehicle.
The wet area is located inside the door box, between the two outermost door plates. Water and dust enter this area, so that all components placed in this area must be suitably protected and able to withstand these conditions. In general, this implies an increased cost of these components.
In any case, it is necessary to have sealing means that separate the dry and wet areas of the door box adequately.
In the present invention, the trim panel mounts or pre-mounts (in the case that a component is mounted temporarily on the panel, or needs an additional operation for its final mounting) several functional components of the door, thereby performing the trim function as well as that of supporting element. To mount the components located in the wet area on the door, the inner plate of the door box is provided with at least one main opening; later, as will be described below, all main openings will be covered with a sealing element that establishes a sealing to separate the dry area from the wet area, ensuring the seal.
The inner plate of the door box may also be provided with another opening that is covered by the speaker, and other secondary orifices for mounting or regulating other components attached to the door. These orifices will also be covered or sealed later to ensure a full seal.
In this way, the separation between the dry and the wet area is established by the inner plate of the door box, and the sealing is achieved by a sealing element that covers the main opening of the plate, precisely the opening that provides access to the interior of the door box that constitutes the wet area. As stated above, there may be several main openings, in which case each one will be covered by a sealing element.
This sealing element, which in any case once installed will always be contained inside the door and concealed from view, is characterised by having own attachment means that allow a fast and simple attachment to the door box plate, as well as other attachment means, either temporary or permanent, to the trim. In addition, a very reliable sealing is achieved. The seal area is small compared to the total area of the door and as the door plate provides the stiffening function the rigidity is barely affected.
In the case of using temporary means of attachment of the sealing element to the trim panel, these may be of two types: one which establishes a connection to the trim when it fulfils its supporting function until the time of installation, and a second that maintains this temporary connection during the installation, so that in the second type two movements of the sealing element with respect to the panel are possible: a vertical movement and another movement perpendicular to the panel.
The sealing element and the trim panel can also be attached by permanent attachment means, i.e. attachment means that do not allow a relative movement between them, unlike the aforementioned temporary means. Therefore, the trim panel and the sealing element move jointly in their coupling to the door box plate.
In addition, as the trim panel does not have to provide the sealing, the assembly does not require the use of gaskets or other elements required to ensure the sealing.
Some of the advantages provided by the solution proposed by this invention, regardless of the mode of attachment of the trim to the sealing element, are the following:
In the first case in which the connection between the trim and the sealing element is temporary until the time of installation, the following is also provided:
The trim panel also has a supporting nature and has several functional elements of the door incorporated, which can be:
In any case, the trim panel also acts as a supporting element that facilitates the mounting operations of the various functional components of the door, reducing the number of operations required and the time of execution by simplifying the handling and transportation of the components until their final mounting on the door.
In addition, after all the components have been mounted on the door it is possible to remove each one independently without having to dismantle the entire assembly, such as when it is necessary to repair or replace any component.
Some of these components require a structural attachment, such as the door handle, the lock or the window lift rails, which must be attached directly to the door to which the loads are transmitted.
A special element is the door insert. If the sealing element remains attached to the trim at all times, it will remains disassembled during the entire mounting process, albeit temporarily pre-mounted, as it is the last part attached to the panel. The insert covers an opening in the panel that allows the final assembly of the door window and other accessories located in the dry area of the vehicle. The insert is joined to the trim panel at the end of the mounting operations by elements that can belong to the insert itself or be external to it. However, when the sealing element is attached to the trim only until the time of installation, the insert does not have to be removed as the trim does not prevent the installation in the dry area of the various components, and specifically of the sealing element.
It is necessary that the trim panel and the elements that it incorporates can be mounted easily and quickly. For this reason, the trim panel and the door box have openings that simplify these mounting operations and provide access to the wet area from the dry area.
To execute the mounting, the components located in the wet area of the vehicle must be mounted first. To access this area the innermost plate of the door box has at least one main opening that provides access to the wet area from the dry area.
After this the innermost plate is sealed with the corresponding sealing elements and the components located in the dry area are mounted; or, as the trim has not been incorporated yet in the first case in which a temporary attachment is established, or in the rest of cases through the opening made in the trim panel with the insert removed. In the latter cases the insert is mounted after the panel.
Mounting of the various elements is also made possible by several auxiliary orifices and attachment elements provided with self-centering means that are provided in the trim panel and the door box.
Also considered part of the present invention is the procedure for mounting the module, which will be described in detail further below.
Lastly, the sealing element allows integrating other additional components, such as an energy-absorbing element in case of lateral impacts, the lock support, the window pane guide, attachment brackets, etc. It can also perform other additional functions such as protection against undesired access to the lock from the outside, such as by including a security ribbing.
The present descriptive memory is accompanied by a set of drawings that illustrate the preferred example without limiting it in any way.
The present invention consists of a supporting module for vehicle doors, intended for installation on doors of motor vehicles.
It consists of a trim panel (2) that acts as a non-structural supporting element, incorporating several functional components of the door, to facilitate its handling and transport to its final working position. This panel (2) is free of any structural responsibility and does not provide the sealing. The sealing is provided by incorporating a component, hereinafter referred to as the sealing element (3), which is described further below.
The function of the trim panel (2) as a supporting module simplifies the handling and mounting operations of the various functional components of the door. In order to allow mounting these components, as well as their independent removal, the inner plate (1) of the door box has at least one main opening (4) and an additional opening (5) to house the speaker (6), as shown in
The door box (1) can have more than one main opening (4), each one closed with a sealing by the corresponding sealing element (3). The examples shown correspond to the case of a single main opening (4) and therefore to a panel (2) incorporating a single sealing element (3).
Hereinafter we will refer only to the case of one main opening (4) and one sealing element (3), considering however at all times that there may be more than one opening (4) and thus more than one sealing element (3).
As regards the aforementioned secondary orifices (7), this denomination extends to different minor openings, shown in
The door box plate has openings (7.1) located peripherally on the bottom and right and left sides, meant to anchor the trim panel (2). The attachment is effected in this case by clipping the panel (2) and the plate (1) of the door box, the clip itself providing the sealing.
To anchor the speaker (6) to the plate (1) of the door box, the speaker opening (5) is provided on its perimeter with the corresponding minor openings (7.2) for screwing the speaker (6) onto the plate (1). In this case the screws also provide the sealing. In another example of embodiment the speaker (6) can be screwed on the trim panel (2), and thus does not have to be screwed afterwards on the door plate (1).
Other openings provided are the openings (7.3) intended to house the body of the door handle (12) and the openings (7.4) that allow anchoring the window lift motor (19). In this case, the attachment and the sealing are also ensured by the attachment screws.
The openings (7.5) that allow attaching the window lift rail or rails (13) are covered by corresponding plugs that ensure a sealing.
Another opening (7.6) is required to regulate the window anchoring, which is also covered by the corresponding sealing plug.
As mentioned above, one can distinguish in the door a dry area with the same conditions as the vehicle interior and a wet area that is exposed to the entry of dust and water from the outside. Any components located in the wet area require a suitable protection. In any case, the two areas must be separated by a sealing.
In the present invention the separation of the dry area and the wet area is established by the inner plate (1) of the door box, while the sealing is established by the sealing element (3) that covers the main opening (4) of said plate (1). The sealing element (3) is also incorporated in the pre-mounted trim panel (2) that is supported by a temporary attachment; subsequently, several final operations establish the final mounting on the doorplate (1). Although a first embodiment of the invention is described using temporary means, other temporary means will be described further below that only fulfil their function attaching the sealing element (3) to the trim panel (2) until the time of installation.
As shown also in
The trim panel (2) acts as a supporting element in which some elements are fixed, this is, in their working position, while others are pre-mounted and require an additional operation to fix them in their final working position and others have a temporary attachment, i.e. they are incorporated to the panel (2) to facilitate its handling and mounting but are fixed in different positions, as described below.
In this preferred embodiment shown in
In this example, the base (8) of the pocket is mounted permanently on the panel (2) and the front of the pocket is part of the panel. In other embodiments the opposite may be true, so that the front of the pocket is mounted permanently on the panel and the base (8) that forms part of it.
Also in the example shown in
Other components are already mounted in their working position in the trim panel (2), such as the wire harness and the inner actuation (11) of the door.
The body of the handle (12) and the speaker (6) are instead pre-mounted on the trim panel (2) for its handling and transport to the door (1), where they require final operations to fix them in their working position.
The trim panel (2) also incorporates elements which, as said panel (2) is a supporting element, are only pre-mounted on it to facilitate their handling, but which must be fixed to the door (1) later. This is the case of the lock (15) and its case (20), and the window lift assembly consisting of the window lift rail or rails (13), the motor (19), a reducer, the transmission means (16), the drum lid (14) and the means for redirecting the transmission means.
The insert (17) remains disassembled while the components are mounted on the door (1), as it reveals an opening (18) in the trim panel (2) required to mount the window glass and other accessories on the door, as will be described later. Therefore, the insert (17) is a disassembled part that is joined to the trim panel (2) in a temporary manner.
The sealing element (3) is another element pre-mounted on the panel (2) that is not definitively attached to the door (1) until one of the final mounting operations after positioning the module, as the opening (4) that it covers in the door box plate (1) provides access to the wet area of the box for mounting the components located in this area.
The boxes (26) have slits (26.1) that allow a vertical movement of the picot (25) in the box (26). Horizontal movement perpendicular to the trim panel (2) is also possible; the retaining heads (25.1) prevents the pivots (25) from leaving the boxes (26) of the sealing element (3). The bottom part of
The attachment of the sealing element (3) and the trim panel (2) is established by clips (33, 34). This example uses male clips (33) at the peripheral points and one female clip (34) at a point coincident with a turret of the impact absorption element, as it is raised from the main surface of the sealing element (3).
In this same case, at the time of installation the sealing element (3) is separated from the trim panel (2). This separation allows to leave the trim panel (2) aside, simplifying the manipulation of the sealing element (3) with the elements joined to it: the lock support (29) and a segment (29.1) of the window guide that is integrated in the support (29).
The latter details are shown in
The lock (15) is located at the end of the lock support (29), coinciding with the edge of the door, where it is permanently attached.
In this example of an embodiment the impact absorption element (35) or padding has been integrated, the window guide (29.1), its rubber, the wire harness (31) and the lock (15) are mounted: the external opening module (30) and the window lift motor (19) are pre-mounted.
It is also possible for the sealing element (3), as in other embodiments of the invention, to be provided with a security ribbing that prevents access to the window supports so that it cannot be broken.
It should be remarked that in this embodiment it is not necessary for the insert (17) to allow access to the inside of the door box, so that it may be fixed from the start on the trim panel (2).
Described next is the mounting procedure for the various functional elements of the door shown in
Starting with the trim panel (2) as a supporting element with the aforementioned elements incorporated, shown in
The speaker (6) may be mounted in two ways: bolted on the trim panel (2) in which case it would not require any operation, or pre-mounted on the trim panel (2) so that it must be bolted to the door plate (1).
In this case, when the speaker is pre-mounted on the trim panel (2) and when the attachment of the sealing element (3) and the trim panel (2) is temporary until installation, the speaker (6) is bolted on after attaching the window lift motor (19) in a phase in which several elements are bolted on. When the speaker (6) is pre-mounted on the trim panel (2) but the attachment between the sealing element (3) and the trim panel (2) is temporary during the installation and also permanent, the speaker (6) is attached after positioning the motor (19) and before placing the module of the door panel (2).
The mounting operations described above can be complemented by the following for greater detail.
The lock (15) and lock case (20) are joined to the sealing element (3) in any mode of attachment and the assembly is pre-positioned in the trim panel (2) when their attachment is maintained until the end. Therefore, when the lock (15) is mounted, the lock (15), its case (20) and the sealing element (3) are positioned in a single operation.
The sealing element (3), as mentioned above, is the element that closes the main opening (4) of the inner plate (1) of the door box and which provides access to the wet area. This element (3) provides a sealing between the dry area and the wet area.
Said element (3) is made of plastic and adapted to the shape of the main opening (4) of the door box. In addition, to ensure the sealing the element (3) is also provided with a peripheral elastic sealing gasket (21) and protrusions (22) that maintain the element (3) in its working position, ensuring its correct operation as they allow attaching the sealing element (3) to the door box (1).
As shown in
The sealing element (3) is pre-mounted on the trim panel (2) with a temporary attachment that connects them. When this connection is maintained at all times a certain relative movement is allowed between the parts (2) and (3), as mentioned before. When the temporary connection is only maintained during transport, the trim panel (2) no longer hinders the manipulation of the sealing element (3). Its final mounting is performed by the following steps.
First the sealing element (3) is positioned resting its peripheral edge (23) on the main opening (4) of the box, on its dry area, slightly displaced from its final position. The position is such that the peripheral gasket (21) rests on the plate (1) and the tabs (22) are opposite incuts (27) made in the plate (1) for this purpose. In this position, by exerting a pressure to overcome the resistance of the compression of the sealing gasket (21) the tabs (22) can overcome the incuts (27).
Then the sealing element (3) is made to slide in a vertical downwards sense to its final position, so that all the tabs (22) rest on the side of the plate opposite that in which the sealing element (3) rests, as it is not opposite the incuts (27).
In the drawing on the left of
The drawing on the right of
When the sealing element (3) is lowered the wedge action is favoured, placing the plate (1) between the two lips (23, 28) and pressing the sealing gasket (21) as shown in the enlargement of
Lastly, the attachment of the sealing element (3) is strengthened by an additional attachment element such as a screw or a rivet.
Other means for attaching the element (3) to the plate (1) are also possible. For example, by pairs of tabs. This is, each tab (22) is accompanied by an additional tab to form pairs, so that once mounted on the plate (1) of the door box it will be embraced by each pair of said tabs (22), one tab of each pair on either side of the plate.
Another possibility is to attach the sealing element (3) to the panel (2) using permanent attachment means, which do not allow the relative displacement between them, such as screws. Thus, when the sealing element (3) is displaced to attach it to the door box (1), the element (3) moves together with the panel (2).
In addition, the element (3) providing the sealing can perform additional functions. Thus, it can incorporate energy absorption elements in case of impact, such as deformable cones (24).
Another function that can be integrated in the sealing element (3) is protection against undesired access from outside the vehicle to the lock (15). For this purpose, a skirt can be included to protect sensitive parts against undesired opening.
Alternatively, in another example of embodiment in which there are no additional parts for providing the seal and in which there is no previous attachment of the trim and the sealing element but there is a temporary attachment until installation, three sub-assemblies can be differentiated:
In addition and in order to provide added security to the lock and inner opening lever, the sealing element is provided with a security ribbing on the face visible from the inside.
To allow attaching the sealing element to the trim once the attachment element is housed in the plate orifice, which if possible will be the only orifice, attachment means are provided on the sealing element which in the case shown in
Although it is not intended at this time to fully incorporate the sealing element on the trim, during the transport of the set of parts required for the mounting process and in order to keep the sealing element joined to the trim, provided on the sealing element (3) are a number of male clips (33) and a truncoconical shaped protrusion that acts as a female clip (34), as shown in
For the sake of clarity, the stages involved in the mounting of the trim panel (2) as a module according to the configuration of this option are listed below.
Although connections of this type are known, it is considered to be applicable to this invention regarding the installation procedure as the grommet type connection can be either mounted or integrated in the injection of the door panel (2), so that a mounting operation is avoided, this mounting operation being included in the mounting of the modular door panel.
The essence of the invention is not affected by variations in the materials, shape, size and arrangement of the component elements, described in a non-limiting manner such that it allows its reproduction by an expert.
| Number | Date | Country | Kind |
|---|---|---|---|
| 05381002.4 | Jan 2005 | EP | regional |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/ES05/70136 | 9/30/2005 | WO | 00 | 7/27/2007 |
