DE102019117670B4 - SPACE-OPTIMIZED ROOF SYSTEM FOR OPENING AND CLOSING A ROOF OPENING OF A VEHICLE - Google Patents

Abstract

Space-optimized roof system (1) for opening and closing a roof opening (16) of a vehicle, in particular an automobile, comprising: - a movement mechanism (2) for linearly moving a roof element (3), with which a roof opening (16) can be opened and closed, - a drive unit (4) for operating the movement mechanism (2), - the movement mechanism (2) being connected to the drive unit (4) via a gear arrangement (5), wherein - the gear arrangement (5) is designed as a crown gear to reduce the installation volume is, characterized in that - the gear arrangement (5) comprises a crown wheel element (6) and a cylindrical wheel element (7) designed as a worm wheel, wherein - the cylindrical wheel element (7) has a length which extends from the electric motor (10) over the Crown gear element (6) extends over, wherein - the cylinder gear element (7) comprises a first end (11) and a second end (12), wherein - the first end (11) is connected to the electric motor (10) and the second end (12) is accommodated in a bearing (13) to increase the mechanical stability, - the roof system (1) having a roof frame arrangement (15) for a panoramic roof system or a sliding roof system, - the roof frame arrangement (15) being composed of a first (17) and a second side profile (18) as well as a front (19) and a rear side profile (20), and - the drive unit (4) is arranged on the first (17) or second side profile (18).

Description

The invention relates to a space-optimized roof system for opening and closing a roof opening of a vehicle, in particular an automobile.

In known roof systems, it is common to use one or more electric drives to open and close a roof opening of a vehicle.

The roof systems are, for example, a panoramic roof for an automobile or a sliding roof for an automobile.

In the roof systems mentioned, the electric drives are arranged at the front and rear ends of a roof frame or on the front and rear side profiles of a roof frame arrangement.

This arrangement is due to the current size of an electric drive or drives, which require space in the front and / or rear side profiles of the roof frame arrangement due to their construction and their structural design.

However, the installation space required by electric drives known from the prior art in the front and/or rear side profile of the roof frame arrangement limits the available area of the roof opening. In this way, the area available for incident sunlight is limited by the roof system or by a panoramic roof or by a sliding roof.

This has the disadvantage that artificial light must be used inside the vehicle when there is little sunlight or low ambient light.

It is therefore the object of the present invention to provide a roof system for opening and closing a roof opening of a vehicle, in particular an automobile, which can be produced inexpensively and is space-optimized in order to ensure improved light incidence into a vehicle.

This object is achieved according to the invention by the features of the independent patent claim. Further advantageous developments are the subject of the subclaims.

• - einen Bewegungsmechanismus zum linearen Bewegen eines Dachelements, mit welchem eine Dachöffnung öffenbar und verschließbar ist, und
• - eine Antriebseinheit zum Betreiben des Bewegungsmechanismus,
• - wobei der Bewegungsmechanismus mit der Antriebseinheit über eine Getriebeanordnung verbunden ist.

According to the present invention, a space-optimized roof system for opening and closing a roof opening of a vehicle, in particular an automobile, comprises:

• - a movement mechanism for linearly moving a roof element, with which a roof opening can be opened and closed, and
• - a drive unit for operating the movement mechanism,
• - Wherein the movement mechanism is connected to the drive unit via a gear arrangement.

The gear arrangement is designed as a crown gear to reduce the installation volume. In this way, the required installation space can be reduced compared to solutions from the prior art that use a spur gear. However, the properties such as translation, torque to be transmitted and/or input and output speed of the crown gear according to the invention can be designed similarly to that of a spur gear.

Furthermore, the gear arrangement includes a crown gear element and a cylindrical gear element.

Furthermore, it is possible for the gear arrangement to include a drive side for connection to the drive unit and an output side for connection to the movement mechanism.

Preferably, the cylindrical gear element forms a drive side of the gear arrangement and the crown gear element forms an output side of the gear arrangement.

Furthermore, the cylindrical wheel element is designed as a worm wheel.

The axes of rotation of the crown wheel element and the cylindrical wheel element are advantageously aligned offset from one another, so preferably do not intersect.

It is also advantageous if the axes of rotation of the crown wheel element and the cylindrical wheel element are aligned at right angles to one another.

It is preferably provided that the crown gear has a ratio in the range between 1:20 and 1:50, in particular a ratio of 1:40.

The crown gear advantageously has straight teeth or helical teeth. This type of gearing is easy to manufacture.

It is also advantageous if the crown gear has involute gearing. The advantages of involute gearing are known to those skilled in the art.

Furthermore, it is advantageous if the crown gear element is designed similar to an annularly curved rack, with the pressure angle decreasing steadily from the outside to the inside diameter. This means that ideal rolling behavior can be generated between the involute gearing and the cylindrical wheel element.

The drive unit preferably has an electric motor for actively opening and closing a roof element.

It is also preferred that the electric motor is connected to the drive side of the crown gear, in particular to the cylindrical gear element. In other words, the electric motor provides the drive.

Preferably, the cylindrical wheel element forms the shaft of the electric motor.

The cylindrical gear member has a length that extends from the electric motor across the face gear member. In other words, the cylindrical wheel element has a length which, similar to a circular secant, intersects the crown wheel element at two points, but of course the cylindrical wheel element and the crown wheel element are arranged in two mutually offset planes.

Furthermore, the cylindrical wheel element includes a first end and a second end.

The first end is connected to the electric motor and the second end is accommodated in a bearing to increase mechanical stability. The storage can be a normal rolling bearing, which is arranged on a housing, for example.

Of course, it is also possible for the first and second ends to each have a bearing.

The drive unit advantageously has a housing for the crown gear and/or an electric motor. The relative position of the electric motor to the gearbox arrangement can be adjusted using the housing.

It is also advantageous if the crown wheel element is supported in the housing. This allows the crown wheel element to rotate relative to the housing.

Preferably, the roof system has a roof frame arrangement for a panoramic roof system or a sliding roof system.

Furthermore, it is preferred that the roof frame arrangement has a roof opening.

The roof system preferably has a roof element for opening and closing the roof opening.

Furthermore, it is possible for the roof frame arrangement to be formed by a first and a second side profile as well as a front and a rear side profile. The information “front” and/or “rear” side profile refers to a vehicle or its direction of travel, with a front side profile on the side of the hood or at the front end of a vehicle and a rear side profile on the side of the trunk or at the rear end of a vehicle is arranged.

Conveniently, the two side profiles and the front and rear side profiles delimit the roof opening.

Furthermore, it can be provided that the drive unit is arranged on the first or second side profile.

It is also possible for a drive unit to be arranged on the first and second side profiles.

Furthermore, it is advantageous if the drive unit is aligned in the same direction as the first and/or second side profile. This preferably means that the electric motor of the drive unit and the gear arrangement are arranged essentially one behind the other in order to take up as little space as possible in the side profile. “Substantially arranged one behind the other” preferably means that the electric motor and the gear arrangement do not have to be arranged linearly one behind the other, but rather that they can also have a lateral offset.

With the help of the new gear design presented above or with the help of the gear arrangement according to the invention in a roof system, for example, on the one hand, it is possible to save installation space that was necessary for guiding cables and, on the other hand, to save installation space that results from the reduction in installation space of the gear arrangement.

The present invention also offers the possibility, as already mentioned, of knowing the width ter solutions of drive unit and gear assembly, which is a crucial requirement for OEMs to remove the drive unit from the front of the frame or from the front side profile of the roof frame assembly, so that a larger sunroof can be generated with the same frame size.

The inventive concept presented above is additionally expressed in other words below.

This idea preferably relates - to put it simply - to maximizing the sun roof size or the sun roof area of a roof system by integrating a gear arrangement and a drive unit from the front and / or rear side profile into a side side profile of a roof frame arrangement of the roof system or to the side of the roof frame.

• 1 eine schematische Ansicht eines erfindungsgemäßen Dachsystems mit einer Antriebseinheit;
• 2 eine schematische Vergrößerung der Antriebseinheit aus 1;
• 3 eine technische Abbildung der Antriebseinheit aus 1 zusammen mit einem Seitenprofil einer Dachrahmenanordnung des Dachsystems;
• 4 und 5 detaillierte Ansichten auf die Antriebseinheit aus 2; und
• 6 und 7 räumliche Ansichten auf die Getriebeanordnung des erfindungsgemäßen Dachsystems.

The invention is explained in more detail below using an exemplary embodiment in conjunction with associated drawings. Show schematically:

• 1 a schematic view of a roof system according to the invention with a drive unit;
• 2 a schematic enlargement of the drive unit 1 ;
• 3 a technical illustration of the drive unit 1 together with a side profile of a roof frame assembly of the roof system;
• 4 and 5 detailed views of the drive unit 2 ; and
• 6 and 7 Spatial views of the gear arrangement of the roof system according to the invention.

In the following description, the same reference numbers are used for the same objects.

1 shows a schematic view of a roof system 1 according to the invention with a drive unit 4.

2 shows a schematic enlargement of the drive unit 4 1 , where 3 a technical illustration of the drive unit 4 1 together with a side profile 17 of a roof frame arrangement 15 of the roof system 1.

For the sake of simplicity, the following are: 1 until 3 described together.

The figures mentioned show a space-optimized roof system 1 for opening and closing a roof opening 16 of a vehicle, in particular an automobile.

The roof system 1 has a movement mechanism 2 for linearly moving a roof element 3 (see 3 ), with which a roof opening 16 can be opened and closed.

Furthermore, the roof system 1 has a drive unit 4 for operating the movement mechanism 2, which is connected to the drive unit 4 via a gear arrangement 5.

The gear arrangement 5 is a crown gear to reduce the installation volume.

Furthermore, the 1 and 3 that the roof system 1 has a roof frame assembly 15 for a panoramic roof system or a sliding roof system, the roof frame assembly 15 having the roof opening 16.

Furthermore, it goes from the 1 and 3 shows that the roof system 1 has a roof element 17 for opening and closing the roof opening 16.

Also with a view to the 1 and 3 it is shown that the roof frame arrangement 15 is formed by a first 17 and a second side profile 18 as well as by a front 19 and a rear side profile 20.

The two side profiles 17, 18 and the front and rear side profiles 19, 20 delimit the roof opening 16.

Furthermore, it can be seen that the drive unit 4 is arranged on the first side profile 17, although it is of course also possible for a drive unit 4 to be arranged on the first and second side profiles 17, 18.

The drive unit 4 is aligned in the same direction as the first side profile 17 (compare 1 and 3 ).

4 and 5 show detailed views of the drive unit 4 2 , where 6 and 7 represent spatial views of the transmission arrangement 5 of the roof system 1 according to the invention.

The 4 until 7 are described together below for the sake of brevity.

This is what they show in particular 6 and 7 that the gear arrangement 5 has a crown gear element 6 and a cylindrical gear element 7, wherein the cylindrical gear element 7 forms a drive side of the gear arrangement 5 and the crown gear element 6 forms an output side of the gear arrangement 5.

Shown in more detail, the gear arrangement 5 has a drive side for connection to the drive unit 4 and an output side for connection to the movement mechanism 2 in order to linearly move or linearly move a roof element 17 (cf. 3 ).

Especially with a view to 6 It can be seen that the axes of rotation 8, 9 of the crown wheel element 6 and the cylindrical wheel element 7 are aligned offset from one another, i.e. do not intersect.

What's more, the axes of rotation 8, 9 of the crown gear element 6 and the cylindrical gear element 7 are aligned at right angles to one another.

In the present case, the crown gear 5 has a ratio of 1:40.

Specially made 7 It can be seen that the crown gear 5 has helical teeth, with the crown gear element 6 being designed similarly to an annularly curved rack, the pressure angle of which decreases steadily from the outside to the inside diameter.

Out of 4 It can be seen that the drive unit 4 has an electric motor 10 for actively opening and closing the roof element 3, the electric motor 10 being connected to the drive side of the crown gear 5 or to the cylindrical wheel element 7.

Strictly speaking, the cylindrical wheel element 7 forms the shaft of the electric motor 10.

In particular 6 shows that the cylinder gear element 7 has a length that extends from the electric motor 10 over the crown gear element 6.

In other words, the cylindrical gear element 7 has a length which, similar to a circular secant, intersects the crown gear element 6 at two points, but the cylindrical gear element 7 and the crown gear element 6 are arranged in two mutually offset planes.

In other words, the cylindrical wheel element 7 has a first end 11 and a second end 12, the first end 11 being connected to the electric motor 10 and the second end 12 being accommodated in a bearing 13 to increase the mechanical stability (cf 2 ).

As in 4 and 5 shown, the drive unit 4 has a housing 14 for the crown gear 5 and the electric motor 10, the crown gear element 6 being supported by the housing 14, whereby the crown gear element 6 can rotate relative to the housing 14.

With the help of the housing 14, the relative position of the electric motor 10 to the crown gear 5 can be adjusted.

Reference symbol list

1

Space-optimized roof system

2

Movement mechanism

3

Roof element

4

Drive unit

5

Gear arrangement

6

Crown gear element

7

Cylindrical wheel element

8th

Axis of rotation

9

Axis of rotation

10

electric motor

11

first ending

12

second ending

13

storage

14

Housing

15

Roof frame arrangement

16

Roof opening

17

first side profile

18

second side profile

19

front side profile

20

rear side profile

Claims (9)

Space-optimized roof system (1) for opening and closing a roof opening (16) of a vehicle, in particular an automobile, comprising: - a movement mechanism (2) for linearly moving a roof element (3), with which a roof opening (16) can be opened and closed, - a drive unit (4) for operating the movement mechanism (2), - the movement mechanism (2) being connected to the drive unit (4) via a gear arrangement (5) is connected, wherein - the gear arrangement (5) is designed as a crown gear to reduce the installation volume, characterized in that - the gear arrangement (5) comprises a crown gear element (6) and a cylindrical gear element (7) designed as a worm gear, wherein - the cylindrical wheel element (7) has a length which extends from the electric motor (10) over the crown wheel element (6), wherein - the cylindrical wheel element (7) comprises a first end (11) and a second end (12), wherein - the first end (11) is connected to the electric motor (10) and the second end (12) is accommodated in a bearing (13) to increase mechanical stability, - wherein the roof system (1) has a roof frame arrangement (15) for a panoramic roof system or a sliding roof system, - the roof frame arrangement (15) being formed by a first (17) and a second side profile (18) and by a front (19) and a rear side profile (20), and - the drive unit (4 ) is arranged on the first (17) or second side profile (18). Space-optimized roof system Claim 1 , - wherein the cylindrical gear element (7) forms a drive side of the gear arrangement (5) and the crown gear element (6) forms an output side of the gear arrangement (5). Space-optimized roof system Claim 1 or 2 , - the axes of rotation (8, 9) of the crown wheel element (6) and the cylindrical wheel element (7) being aligned offset from one another, - preferably the axes of rotation (8, 9) of the crown wheel element (6) and the cylindrical wheel element (7) at right angles are aligned with each other, - wherein preferably the crown gear (5) has a ratio in the range between 1:20 and 1:50, in particular a ratio of 1:40. Space-optimized roof system according to one of the preceding claims, - wherein the crown gear (5) has straight teeth or helical teeth, - wherein preferably the crown gear (5) has involute toothing, - Preferably the crown gear element (6) is designed similar to an annularly curved rack, with the pressure angle steadily decreasing from the outer diameter to the inner diameter. Space-optimized roof system according to one of the preceding claims, - wherein the drive unit (4) has an electric motor (10) for actively opening and closing a roof element (3), - wherein preferably the electric motor (10) is connected to the drive side of the crown gear (5), in particular to the cylindrical wheel element (7), - wherein preferably the cylindrical wheel element (7) forms the shaft of the electric motor (10). Space-optimized roof system according to one of the preceding claims, - wherein the drive unit (4) has a housing (14) for the crown gear (5) and / or an electric motor (10), - Preferably the crown wheel element (6) is supported by the housing (14). Space-optimized roof system according to one of the preceding claims, - wherein the roof frame arrangement (15) has a roof opening (16), - wherein preferably the roof system (1) has a roof element (3) for opening and closing the roof opening (16). Space-optimized roof system according to one of the Claims 1 until 7 , - whereby the two side profiles (17, 18) and the front and rear side profiles (19, 20) delimit the roof opening (16). Space-optimized roof system according to one of the Claims 1 until 8th , - wherein the drive unit (4) is aligned in the same direction as the first and / or second side profile (17, 18), - wherein preferably one drive unit (4) is arranged on the first and second side profile (17, 18). .

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