A motor-vehicle dashboard

Abstract: The dashboard unit (1) of a motor-vehicle is mounted on an auxiliary frame (2) fixed at its ends to the motor-vehicle body and centrally supported by the housing (4) of an auxiliary unit, such as, an air-conditioning unit or heating unit. This housing is fixed at the top to the frame (2) and at the bottom to the floor (5) by a bracket (14).

Description: The present invention relates to a motor-vehicle of the type comprising a body, an auxiliary frame including a cross-member provided at its ends with means for connection to said body, a dashboard mounted on said auxiliary frame so as to form therewith a dashboard unit which can be pre-assembled, and an auxiliary unit such as an air-conditioning unit or heating unit having a housing fixed to said dashboard unit and support column means for said dashboard unit extending between the cross-member and the floor of the body. The document EP-A-0 047 858 shows the preamble of claim 1. In motor-vehicles of the above indicated type, said support column means are constituted by a sheet metal element extending vertically between the central portion of the cross-member and the floor, which is fixed both to said cross-member and said floor, so as to provide a central support for the dashboard unit and avoid deformations and vibrations of the latter. The object of the present invention is that of simplifying said known solution, while keeping its advantages. In view of achieving this object, the invention provides a motor-vehicle arrangement according to pending claim 1. Said connecting means comprises a U-shaped bracket having a plurality of holes on its side walls, each able to receive a respective fixing bolt which engages also a respective vertical slot on said housing, said U-shaped bracket further having at least one hole at its base adapted to receive a respective fixing bolt which engages also a hole formed in the body floor, said hole on the base of the U-shaped bracket having a diameter which is substantially greater than the diameter of said floor fixing bolt. Due to these features it is ensured that, when the dashboard unit is mounted on the body after that it has been assembled off-line, it is always possible to carry out the requested connection even if, because of the manufacture tolerances, the relative position between the housing of the auxiliary unit and the floor is not always the same. Furthermore, the provision of said U-shaped bracket makes the assembling and disassembling operations easier, since the absence of this bracket creates a gap between the lower part of said housing and the floor which renders the aforesaid operations easier. A preferred embodiment of the invention will be described in the following, with reference to the annexed drawings, given purely by way of non limiting example, in which: figure 1 shows a diagrammatic view of the dashboard unit mounted within the passenger compartment of a motor-vehicle, figure 2 shows an exploded perspective view, at an enlarged scale, of the dashboard unit of figure 1, figure 3 is a cross-sectional view taken along line 3-III of figure 1, figure 4 is a view of the unit of figure 1, and figure 5 is a perspective view of a detail of the inner surface of the body side panel which is used for connecting the dashboard unit. According to a preferred embodiment of the present invention, and with reference to figure 1, a dashboard unit 1 is mounted on an auxiliary frame 2, constituted by a cross-member, e.g. of sheet metal or plastic material, which on its turn is fixed at its ends to the two side panels 3 of the motor-vehicle (one of the side panels has been omitted in the drawing in order to render the latter more understandable). The frame 2 of the dashboard unit 1 is further centrally supported by the housing 4 of an auxiliary unit, such as an air-conditioning unit or a heating unit, which on its turn is supported by the floor 5 of the body 6 of the motor-vehicle. Furthermore, the housing 4 of the auxiliary unit is fixed to the auxiliary frame 2 (figures 2 and 4) by four screws 7 respectively engaging the holes 8 formed both in the auxiliary frame 2 and in the upper wall of housing 4 and clamped by respective nuts 9. As shown in figure 3, the dashboard unit 1 further has an outer ornamental element 10 fixed to the auxiliary frame 2 from which the housing 4 projects downwardly. The housing 4 is fixed at the bottom to the floor of body 6 (see figures 2 and 3) by a U-shaped bracket 14, having two pairs of holes 11, on its two side wings and two holes 12 on its base. The housing 4 has four holes 13 which are vertically elongated on its side walls, two holes being provided on each side wall, said holes being arranged so as to face the respective holes 11 and be engaged there alone by the respective bolts 15. In this way, the U-shaped bracket 14 is fixed to housing 4 so as to be adjustable in the vertical direction. The holes 12 enable the U-shaped bracket 14 to be fixed to the floor 5 by respective bolts 16. Also in this case the connection is adjustable since the diameter of holes 12 is greater than the diameter of bolts 16 thus providing the bracket, and hence everything which is connected thereto, a certain play in the direction of arrows x,y shown in figure 2. This type of adjustable connection of housing 4 to floor 5 by the U-shaped bracket 14 enables the final assembly of the dashboard unit to the floor, not withstanding the possible variations in position, resulting from the tolerances of manufacture. As already indicated, the provision of said U-shaped bracket greatly facilitates the assembling and disassembling operations, since in the absence of this bracket a free gap is formed between the housing 4 and the floor 5 which renders both the mounting of the whole dashboard unit within the compartment, and the disassembling of the auxiliary unit, easier. According to the preferred embodiment of the present invention and as shown in figures 2, 4 and 5 there are further provided, on side panels 3 of body 6, brackets 17, having holes 18, which enable the connection of dashboard unit 1, through element 19 of the auxiliary frame 2, to the body 6 of the motor-vehicle in conventional way. According to a technique known per se, the whole dashboard unit is assembled on frame 2 away from the motor-vehicle production line and is then mounted by a single operation within the passenger compartment. The auxiliary unit can then be connected at its bottom to the floor by bracket 14, so that, in the assembled structure, it fulfils also the function of a support column for the central portion of the cross-member constituting said auxiliary frame 2. The same advantages of the above described known solution making us of an auxiliary frame including a column element are achieved, while eliminating this latter component.

Claims: Motor-vehicle arrangement comprising a body (6), an auxiliary frame (2) including a cross-member provided at its ends with means (19) for connection to said body (6), a dashboard (10) mounted on said auxiliary frame (2) so as to form therewith a dashboard unit (1) which can be pre-assembled, and an auxiliary unit such as an air-conditioning unit or heating unit having a housing (4) fixed to said dashboard unit (1) and support column means for said dashboard unit (1) extending between said cross-member (2) and the floor (5) of said body (6), whereby said support column means are integral part of the housing (4) of said auxiliary unit, said motor-vehicle arrangement being characterized in that said housing (4) comprises means (11-16) for connection to the floor (5) of said body (6), and in that said connecting means (11-16) comprises a U-shaped bracket (14) having a plurality of holes (11) on its side walls, each adapted to receive a respective fixing bolt (15) which engages also a respective vertical slot (13) on said housing (4), said U-shaped bracket (14) further having at least one hole (12) on its base, adapted to receive a respective fixing bolt (16) which engages also a hole formed in the floor (5) of the body (6). Motor-vehicle according to claim 2, characterized in that said connecting means (11-16) are adapted to allow the relative position of said housing (4) and said body (6) to be adjusted. Motor-vehicle arrangement according claims 1 or 2, characterized in that said hole (12) on the base of the U-shaped bracket (14) has a diameter substantially greater than the diameter of said bolt (16) for connection to the floor (5), and in that said vertical slot (13) on said housing (4) and said hole on the base of the U-shaped bracket (14) provide said variation of relative position.

Inventors: MOLARI AURELIO, SCAVINO GIANNI, MOLARI, AURELIO, SCAVINO, GIANNI, Molari, Aurelio, c/o Magneti Marelli Spa, Scavino, Gianni, c/o Magneti Marelli Spa
Applicants: DENSO THERMAL SYSTEMS SPA, DENSO THERMAL SYSTEMS S.P.A.
Application year: 1997
Main classification: B60K37
IPC codes: B60K37