A FLEXIBLE HOOD FOR A CONVERTIBLE MOTOR VEHICLE, PROVIDED WITH A SAFETY HOOK FOR THE REAR ARCH OF THE HOOD FRAME

Abstract: The flexible hood (1) is movable between an extended position in which it covers the passanger compartment and a folded position. It is provided with a pivoted framework (2) comprising a main arched structure (5) carrying anchoring pins (8) and a rear arched member (10) carrying catch devices (11) which can engage the anchoring pins (8). Hooks (14) are connected to the body of the motor-vehicle and engage the pins (8) when the hood (1) is extended so as to prevent the structure (5) from pivoting. The hooks (14) are released from the pins (B) by the catch devices (11) when the catch devices (11) engage the pins (8) so as to enable the structure (5) and the arch (10) to pivot freely together.

Description: The present invention relates to flexible hoods for convertible motor vehicles. The prior art in this field provides essentially two types of hood: a first type is characterised in that the lower part of the rear window, or the frame which supports it, is connected permanently to the bodywork and a second type is characterised in that the lower part of the rear window, or the frame which supports it, is connected to a structure which is movable relative to the bodywork. The present invention relates to a hood of the second type. In particular, the invention concerns a flexible hood for a convertible motor vehicle which is movable between an extended position, in which it covers the passenger compartment of the motor vehicle, and a folded, non-covering position, the flexible cover comprising: a pivoted framework for connection to the motor-vehicle body; a flexible fabric cover associated which the framework; a main arched structure which forms part of the framework and is articulated at its ends to respective supports connected to the motor-vehicle body, the main structure being movable between a vertical position in which the hood is extended and a horizontal position in which the hood is folded, the ends each carrying an anchoring pin and a bracket; a rear arch which forms part of the framework and is articulated at its ends to the bracket, the rear arch being movable between a horizontal position and a vertical position substantially adjacent that of the main structure, the rear arch carrying a catch device which can engage the anchoring pin of the main arch structure when the rear arch is in the vertical position. A hood of the type indicated is described in Italian patent application No. 67,217-A/86 and in the corresponding European patent application No. 0 246201. In order to move such a hood from its extended position to its folded position and to place the folded hood in a housing compartment provided in the bodywork, it is necessary to bring the rear arch, which is normally in a horizontal position, to a vertical position adjacent that of the main arched structure in which its catch device engages the pin carried by the main arch structure. The unit formed by the structure and the arch which are now firmly fixed together can then be pivoted to the horizontal position, causing the hood to disappear into its housing. Some careless users, however, neglect to bring the rear arch into the vertical position before pivoting the main arched structure and thus cause serious damage to the hood. In fact this incorrect manoeuvre causes an irregular movement of the rear arch which interferes with other parts of the hood. The object of the present invention is to provide an improved type of flexible hood for convertible motor vehicles in which it is not possible to carry out incorrect manoeuvres during the folding operation. The subject of the invention is a hood of the type indicated above, characterised in that it includes a hook mounted on each support, the hook engaging the anchoring pin when the main arched structure is in the vertical position so as to prevent the main arched structure from pivoting, the hook being released from the anchoring pin by the catch device of the rear arched member when the catch device engages the anchoring pin so as to enable the first arched element to pivot freely. The present invention will become clear from the detailed description which follows with the aid of the appended drawings, provided by way of non-limiting example, in which: Figure 1 is a side view of a flexible hood according to the invention mounted on a motor vehicle, Figure 2 is a side view of a detail of the hood of Figure 1 on an enlarged scale, Figure 3 is a plan view of the detail of Figure 2, Figure 4 is a side view of the detail of Figure 2 in another operating position, Figure 5 is a side view of the detail of Figure 2 in yet another operating position. A flexible hood 1 for a convertible motor vehicle, which is movable between an extended position in which it covers the passenger compartment of a motor vehicle and a folded, non-covering position, includes a pivoted framework 2 for connection to the body 3 of the motor vehicle and a flexible fabric covering 4 associated with the framework 5. The hood 1 also includes a rigid, glass, rear window 19 which is movable, as a result of the movement of the hood 1, between a raised position, in which it follows the shape of the extended hood 1, and a lowered position in which it is housed within the passenger compartment of the motor vehicle. This and other details of the hood which are not essential for an understanding of the present invention are described in detail in Italian patent application No. 67217-A/86 which corresponds to European patent application No. 0246201 and is included in the present specification by way of reference. The framework 1 includes a main arch structure 5 (Figures 2 to 5) which is articulated at its ends 7 to respective supports 6 connected to the body 3 of the motor vehicle so as to be able to pivot from a vertical position 5a, in which the hood is extended, to a horizontal position 5b in which the hood is folded. Each end 7 also carries an anchoring pin 8 and a bracket 9. The framework 2 includes a rear arch 10 which is articulated at its ends to the bracket 9 so as to be pivotable from a horizontal position 10b to a vertical position 10a substantially alongside that 5a of the main arched structure 5. The rear arch 10 carries a catch device 11 with a rocker-arm structure which has an end 12 for engaging the pin 8 of the main arched structure 5 towards which it is urged by a spring 18 and a hand-grip end 13 for its manual operation. An elongate hook 14 is pivoted on each support 6 by a first end 15 and has a second, active end 16 for engaging the anchoring pin 8 towards which it is normally urged by a spring 17. When the fabric cover 4 is in the extended position, the main arch structure 5 is in its vertical position, locked by the hook 14 whose active end 16 engages the anchoring pin 8 of the structure 5, and the rear arch 10 is in the horizontal position 10b (Figure 2). If the fabric cover 4 is to be folded, the rear arch 10 is raised to a vertical position 10a adjacent that 5a of the main arch structure 5. The end 12 of the catch device 11 of the rear arch 10 thus engages the anchoring pin 8, releasing the end 16 of the hook 14 therefrom (Figure 4). The structure 5 and the arch 10 are thus firmly fixed together and can then be pivoted into a horizontal position 5b, 10b, without being obstructed by the hook 14, so as to cause the flexible hood 1 to fold (Figure 5). When it is wished to return the hood 1 to the extended conditions, it suffices to operate the catch device 11 manually by means of the grip 13 to release the main arch structure 5 which can then be returned to its vertical position 5a. From the above, it is clear that it is impossible to pivot the main arch structure 5 to the horizontal position 5b unless the rear arch 10 has first been brought to the vertical position 10a. Damage due to the incorrect carrying out of the manoeuvre is thus avoided. A further advantage of the hood according to the invention lies in the fact that the movement of the main structure and of the rear arch can be achieved automatically with a single actuator. For example, a single electrically- or pneumatically-operated actuator (indicated in broken outline at 18 in Figure 1) which acts on the rear arch may be provided. Enabling levers, not illustrated, are also provided for enabling the actuator 18 to act only at the right moment on other parts of the hood. During the folding stage, once the arch 10 has been released from the body 3, the actuator 18 acts first on this arch and moves it from the horizontal position 10b to the vertical position 10a, and then causes the whole hood 1 to fold. In fact, once it is in the vertical position 10a, the arch 10 is hooked by means of the catch device 11 to the main arched structure 5, which is in turn connected to the framework 2 of the cover 1 and transmits thereto the drive imparted to it by the actuator 18. Obviously the same steps occur in reverse order during the unfolding of the hood 1.

Claims: A flexible hood (1) for convertible motor vehicles, which is movable between an extended position in which it covers the passenger compartment of a motor vehicle and a folded, non-covering position, the flexible hood (1) comprising: a pivoted framework( 2)for connection to the body(3) of the motor vehicle; a flexible fabric cover( 4 )associated with the framework (2); a main arched structure (5) which forms part of the framework (2) and is articulated at its ends (7) to respective supports (6) connected to the motor-vehicle body (3), the main structure (5) being movable between a vertical position (5a), in which the hood (1) is extended, and a horizontal position (5b), in which the hood (1) is folded, the ends (7) each carrying an anchoring pin (8) and a bracket (9); a rear arched member (10) which forms part of the framework (2) and is articulated at its ends to the bracket (9), the arch (10) being movable between a horizontal position (10b) and a vertical position (10a) substantially beside that (5a) of the main arch structure (5), the rear arch (10) carrying a catch device (11) which can engage the anchoring pin (8) of the main arch structure (5) when the rear arch (10) is in its vertical position (10a); the hood being characterised in that it includes a hook (14) mounted on each support (6), the hook (14) engaging the anchoring pin (8) when the main arch structure is in the vertical position (5a) so as to prevent the main arch structure (5) from pivoting, the hook (14) being released from the anchoring pin (8) by the catch device (11) of the rear arch (10) when the catch device (11) engages the anchoring pin (8) so as to enable the structure (5) and the arch (10) to pivot freely together. A hood according to Claim 1, characterised in that the hook (14) is elongate and has a first end (15) pivoted on the support (6) and a second, active end (16) for engagement with the anchoring pin (8). A hood according to claim 2, characterised in that the hook (14) is provided with a spring (17) which normally urges it into engagement with the anchoring pin (8). A hood according to any one of the preceding claims, characterised in that it includes a single actuator (18) which acts on the rear arch (10) for automating the folding and unfolding of the hood (1).

Inventors: DOGLIANI, ENRICO
Applicants: INDUSTRIE PININFARINA S.P.A.
Application year: 1989
Main classification: B60J7
IPC codes: B60J7