CZ2005213A3 - Vehicle tiltable rear - Google Patents

Abstract

In the present invention, there is disclosed a motor vehicle hatchback tailgate (3) comprising an upper part (1) that is hinged by means of a first pair of uniaxial hinges (5) to a vehicle body (21). A bottom part (2) is hinged by means of a second pair of uniaxial hinges (8) to said upper part (1) bottom edge. A double mechanism (22), ensuring connection of both the hatchback tailgate (3) upper part (1) with the vehicle body (21) in a first basic position and the hatchback tailgate (3) upper part (1) with the bottom part (2) thereof in a second position, is attached to the vehicle body (21) on at least one side of the hatchback tailgate.

Description

Technical field

The invention relates to a tailgate of vehicles, comprising an upper part which is pivotally mounted to the body by first uniaxial hinges and a lower part which is pivotally attached to the lower edge of the upper part by second uniaxial hinges.

Whether only the lower part of the tailgate is opened or the entire tailgate is opened, the mechanism is partially mounted in the siderail and partly part of the rigid parts of the second pair of uniaxial hinges connecting the lower and upper parts of the tailgate.

BACKGROUND OF THE INVENTION

Car manufacturers produce each car model in several body variants.

Especially the conservative circle of customers like cars with sedan body type, for their representative appearance. Many of these cars have a relatively large luggage space, the use of which, however, limits the size of the luggage compartment entrance opening, as well as a solid wall between the luggage compartment and the passenger compartment and a plate under the rear window glass to prevent larger objects.

Practically established customers therefore usually prefer cars with body type liftback respectively. hatchback, which have a so-called tailgate, where the trunk lid forms one unit with the rear window and its frame, the rear seat backrests are folding and the plate under the rear window glass is removable. Sometimes such a tailgate is also referred to as the fifth door.

Lifting the tailgate generates a large access opening to the luggage compartment.

However, this advantage can paradoxically become a disadvantage when loading small objects, when opening the entire tailgate leads to a loss of thermal comfort for passengers in an air-conditioned interior.

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Consequently, in some embodiments, the designers have divided the tailgate into two parts, so that either the entire tailgate can be opened as in the case of liftback bodies, or only its lower part can be opened as in the case of sedan bodies.

A number of design variants of such a two-part tailgate are known.

The first possibility is an embodiment with a support frame which is a fixed part of the upper part of the tailgate, to which a separately openable lower part of the tailgate is rotatably attached, which is locked in the closed position against the support frame by a lock. The support frame is then secured to the body with another lock or locks.

Another solution does not use a supporting or subframe. The assembly consists of the upper and lower tailgate which are connected to each other by four-axis hinges, and the movement of the lower part is coupled by means of struts to the body when the assembly is opened so that the relative position of the lower and upper tailgate is changed.

Further, solutions are known which utilize complex multi-element hinges between the upper and lower parts of the tailgate. Such solutions are known for example from the documents: EP 159 017, EP 718 134 and DE 44 00 374

SUMMARY OF THE INVENTION

A tailgate for vehicles comprising an upper part rotatably mounted to the body by first uniaxial hinges and supported by a pair of first struts, a lower part supported by a pair of second struts at the lower edge of the upper part by means of second uniaxial hinges. According to the invention, the first part of the double tailgate locking mechanism is mounted on the body and the second part operated by the first part of the mechanism mounted on the body is secured to the upper part of the tailgate to the body, locking the upper and lower tailgate.

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Such a design ensures that the tailgate according to the invention can be easily opened and closed according to user requirements.

The control mechanism consists of two parts. The first part of the mechanism, mounted on the body, comprises an electric motor, a recess and a first cam. The second part of the mechanism, mounted on the upper part of the tailgate, comprises a flat part, a second detent element and a second cam.

In the basic position, the flat part of the second part of the mechanism is inserted into the recess of the first part of the mechanism and the second cam, which is part of the second part of the mechanism, is not engaged with the first arresting element which is a fixed part of the arm of the second uniaxial hinge. The lower tailgate is therefore released. Furthermore, in the initial position, the first cam, which serves to engage and tighten the second detent element, engages the second detent element. Thus, the upper tailgate is connected to the body. In the basic position, only the lower tailgate can be opened using the soft control that unlocks the tailgate lock.

If you want to open the entire tailgate, first confirm with the button located next to the soft control that you really want to open the entire tailgate and then push the soft control to unlock the tailgate lock and open the entire tailgate.

After pressing the button, the first and second parts of the mechanism are adjusted so that the recess rotates through the flat part by the second cam, which engages and tightens the first arresting element which is a fixed part of the pivot arm of the second uniaxial hinge. rear. Subsequently, the first cam is pivoted, which disengages the second arresting element which is part of the second part of the mechanism mounted on the upper tailgate, thereby detaching the upper tailgate from the body. Then press the soft control to unlock the tailgate lock and open the tailgate.

After closing the tailgate, both parts of the mechanism are automatically moved to the basic position and the upper tailgate is again connected to the body and only the lower tailgate can be opened again by pressing the soft control.

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In order to ensure maximum safety, a double mechanism is preferably provided on each side of the tailgate.

The lower part of the tailgate is preferably provided with one lock for engaging an eye placed on the body.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail with the aid of schematic drawings, in which FIG. Fig. 2 shows the tailgate according to the invention with only the bottom part open, and Fig. 3 shows the tailgate according to the invention, open as a whole. Fig. 4 shows the arrangement of the double mechanism in the home position. Fig. 5 shows the arrangement of the double mechanism in the second position (the tailgate is open). Fig. 6 shows a detail of the double mechanism in the basic position. Fig. 7 shows a detail of the double mechanism in the second position.

DETAILED DESCRIPTION OF THE INVENTION

The tailgate 3 for the vehicles of Figures 1 to 3 comprises an upper part 1 and a lower part 2.

The lower part 2 has a lower lock 19 at the lower edge for engaging an eye 18 located at the rear sill of the boot 21.

The upper part 1 is provided with a glazing 4 and is fastened to the body 21 by means of a first pair of uniaxial hinges 5 tilting about the axis 6.

A pair of first gas struts 7 are arranged between the body 21 and the upper part 1.

On the lower edge of the upper part 1, a lower part 2 is mounted by means of a second pair of uniaxial hinges 8 tilting about axis 9.

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A pair of second gas struts 10 are arranged between the upper part 7 and the lower part 2.

On each side of the tailgate 3, a double mechanism 22 is attached to the body, intended both for locking the upper part 1 to the body 21 and for locking the lower part 2 to the upper part E The locking of the upper part 1 to the body 21 cannot be operated independently of the lower part In theory, one double mechanism 22 would suffice to provide the desired function, but for stability of the body 21 and the tailgate 3 it is preferable to use the above described pair of symmetrically positioned double mechanisms 22.

Each mechanism consists of two parts (Figs. 4 and 5). The first part 23 of the double mechanism 22, fixed to the body 21 and comprising the electric motor 20, is provided with a recess 11 and a first cam 12. The second part 24 of the double mechanism 22 fastened to the upper part 1 and comprising the body 27 is provided with the second cam 13, the flat member 14 and a second locking element 15.

The recess 11, which is part of the first part 23 of the mechanism 22, is intended to rotate the second cam 13 by means of a flat member 14 which serves to engage and tighten the first arresting element 15 formed by a pin which is a fixed part of the pivot arm 17 This will connect the upper part 1 and the lower part 2.

In the closed state of the tailgate 3 of the vehicle (Figs. 1, 4, 6), the lower lock 19 with the eye 18 is locked and the double mechanism 22 is set in the basic position so that the first cam 12 engages the second locking element 15 and the upper part 1 is fixed to the body 21. The recess 11 engages the flat member 14 and the second cam 13 is not engaged with the first arresting element 16, which is a fixed part of the pivot arm 17 of the second uniaxial hinge 8. Thus, the lower part 2 is freely rotatable axis 9 of the second uniaxial hinge 8.

If only the lower part 2 of the tailgate 3 of the vehicle is to be opened (see Figures 1 and 2), the lower lock 19 is unlocked by pressing the fine control 25. The whole double mechanism 22 remains in the basic position. The lower part 2 of the tailgate 3 can thus be opened and closed along the axis 9 of the second uniaxial pair of hinges 8 as a boot lid on vehicles with a sedan body type.

If the entire tailgate 3 of the vehicle is to be opened (see Figures 1 and 3), it is necessary to first press the button 26 located next to the fine control 25 and confirm that we really want to open the entire tailgate 3 of the vehicle. This moves the double mechanism 22 to the second position so that the recess 11 rotates through the flat part 14 by the second cam 13 which engages and tightens the first arresting element 16, which is a fixed part of the pivot arm 17 of the second uniaxial hinge 8 and the upper part 1 of the tailgate 3 and the lower part 2 of the tailgate 3 (Fig. 7). The first cam 12 is then rotated, which disengages the second arresting element 15 which is part of the second part of the mechanism 24 mounted on the upper part 1 3 and thus the upper tailgate 1 is disconnected from the body 21. Subsequently, by pressing the fine control 25, the tailgate lock 3 of the vehicle is unlocked as in the case of a vehicle with a liftbeck or hatchback body.

Claims (4)

PATENT CLAIMS Tailgate (3) for vehicles, comprising an upper part (1) which is pivotally mounted to a body (21) by a first pair of uniaxial hinges (5), wherein at the lower edge of the upper part (1) is a second pair of uniaxial hinges (8) a lower part (2) pivotably mounted, characterized in that a double mechanism (22) is secured to the body (21) on at least one side of the tailgate (22) to connect the upper part (1) of the tailgate (3) to the body ( 21) and the upper part (1) and lower part (2) of the tailgate (3). Tailgate (3) according to claim 1, characterized in that the double mechanism (22) comprises an electric motor with a gearbox (20) mounted to the body (21), provided with a recess (11) for rotating the flat member (1). 14), which is designed to rotate the second cam (13) for engaging and tightening the first detent (16) mounted on the lower part (2) of the tailgate (3) and the first cam (12) for engaging and attracting the second detent element (15), which is fastened to the upper part (1) of the tailgate (3). Tailgate (3) according to claim 1 or 2, characterized in that on each side of the tailgate (3) a first part (23) of the double mechanism (22) is mounted in the body (21) and on each side side the second part (24) of the double mechanism (22) is fastened to the upper part (1) of the tailgate (3). Tailgate (3) according to any one of the preceding claims, characterized in that the double mechanism (22) is divided into two interlocking amounts that on a first part (23) of the double mechanism (22) mounted on the body (21) and a second part (24) of the double mechanism (22) mounted on the upper part (1) of the tailgate (3).