CZ292804B6 - Control gear, particularly for vehicle windows - Google Patents

Abstract

The invented control gear, in particularly a control gear for vehicle windows comprises; a translation unit (18) that includes a fixed guide (20) extending in the direction of movement of a window pane (16) and a slide (22) slidable along the guide (20) and supporting the window pane (16); a drive unit (24), which includes a fixed housing (26), a drum (28) rotatable in the housing (26), and means (30) for rotating the drum (28); and a transmission including a pair of flexible sheaths (32, 34) each having a first end (36, 38) anchored to the housing (26) and a second end (40, 42) associated with the translation unit (18), and a cable (46, 48) slidable in both of the sheaths (32, 34), extending around the drum (28), and having two opposite ends coupled with the translation unit (18). The invention is characterized in that the second ends (40, 42) of the sheaths (32, 34) are anchored to the slide (22) whereby the slide (22) has a pair of internal ducts (50, 52) for guiding the cable (46, 48). The ducts (50, 52) extend between inlet openings to which the second ends (40, 42) of the sheaths (32, 34) are anchored, respectively, wherein said cable (46, 48) opposite ends of the cable (46, 48) are anchored to the respective ends of the guide (20) so that respective portions (46a, 48a) of the cable (46, 48) disposed between the respective outlets and the respective ends of the guide (20) extend parallel to the guide (29).

Description

Technical field

The present invention relates to a window control device, in particular for vehicle windows, of the type comprising:

a drive unit comprising a fixed guide extending in the direction of travel of the sheet and a slider sliding along the guide and carrying the sheet, a drive unit comprising a fixed housing, a drum rotatable within the housing and a drum rotating means, and a transmission comprising a pair of flexible sheaths each a first end anchored to the housing and a second end connected to the feed unit, and a cable slidable in both of these shells extending around the drum and having two opposite ends connected to the feed unit.

BACKGROUND OF THE INVENTION

The prior art closest to the present invention is represented by a window control device in which the second ends of the resilient skins are anchored to the brackets fixed to the respective upper and lower ends of the guide. The cables that protrude from these ends of the sheaths are both guided along the leash by pulleys or similar guide elements and extend to the slider to which they are anchored.

These known devices, however, have a relatively high manufacturing cost due to the presence of holders, pulleys or the like and pins on which the pulleys rotate. In addition to the cost of manufacturing and assembling these components, the cost of welding the brackets to the ends of the guide should also be taken into account.

It is an object of the present invention to provide a window actuator that offers the functional advantages of known devices of the same category and at a low cost due to the absence of brackets and pulleys or similar guide elements.

SUMMARY OF THE INVENTION

According to the present invention, this object is achieved by means of a window operating device of the type mentioned above, which consists in that:

the other ends of the sheaths are anchored to the slider, the slider has a pair of internal cable routing guides, the lines extending between the inlet openings to which the other sheath ends are anchored, and the corresponding opposite outlets facing respective opposite ends of the guide; to the respective ends of the guide, such that the respective portions of the cable located between the respective outlets and the respective ends of the guide extend parallel to the guide.

-1 CZ 292804 B6

The concept on which the present invention is based reverses the conventional operating principle of window operating devices in which two opposite strands of cable slide in respective resilient sheaths. According to the present invention, in addition to providing a known function of supporting the sheet, the slider also provides a function of deflecting forces in the two branches of the cable toward the pressure axis on the 5 window, which function is usually performed by pulleys or similar guide elements located at the ends of the guide. slider scrolls.

This arrangement is made possible by the elasticity of the sheaths whose ends remote from the drive unit follow the rider's upward and downward movements.

Due to the flexibility of the casings, this arrangement does not impose severe limitations on the length of the guide and its distance from the drive unit, so that the same control device is suitable for installation in different models of motor vehicles without any modification.

Due to the removal of brackets, pulleys and the like, the device of the present invention also has the advantage of less weight compared to known actuators of the same category.

The invention has been designed for application to motor vehicle doors, but can be applied in other areas, both to vehicles in general and to doors and windows in buildings, for example.

Preferably, the two guides extend inside the slider without crossing each other, one of the two guides extending along a curved path from the inlet, which is situated in the upper corner area of the slider on the side facing the drive unit and having an axis converging down towards the guide. to an outlet situated at the lower end of the slider and facing towards the lower end of the guide, and wherein the second guide extends along a curved path from an inlet located in the lower corner area of the slider on the drive facing side and having an axis converging upward a guide, to an exit situated at the upper end of the slider and pointing towards the upper end of the guide.

Preferably, one guide from the guide within the slider extends along a curved path with a deflection substantially 90 ° from the upper inlet opening situated on the side of the slider facing the drive unit and having an axis substantially perpendicular to the guide to the outlet situated at the upper end and a second guide within the slider extends along a curved path with a deflection substantially 90 ° from the lower inlet aperture 35 situated on the same aforementioned side of the slider and having an axis substantially perpendicular to the guide to the exit situated on the slider. the lower end of the slider and facing the lower end of the guide.

Preferably, the two guides pass through the slider without crossing each other, one of the guides 40 passing along a curved path from an upper inlet opening situated on the side of the slider facing the drive unit and having an axis substantially perpendicular to the guide to the outlet situated. at the upper end of the slider and facing the upper end of the guide, and the second guide extends along a curved path from a lower inlet opening situated on the side of the slider facing the drive unit and having an axis substantially perpendicular to the guide 45 to the outlet situated on the upper end of the slider and pointing towards the lower end of the guide.

Preferably, two inner rider guides extend within the rider without crossing each other, one of these rider guides extending along a curved path from an inlet that is situated on the side of the rider facing the drive unit and has an axis substantially perpendicular to the guide 50, to an outlet situated at one end of the slider and pointing to a corresponding end of the guide, and the other guide extends along a straight path parallel to the guide from an inlet situated at the opposite end of the slider relative to the aforementioned end to the outlet situated at the other end.

-2GB 292804 B6

Preferably, the guide that follows the curved path has an outlet situated at the lower end of the slider and pointing towards the lower end of the guide, the inlet of the straight guide being at that lower end.

Preferably, two guides within the slider extend along straight tracks parallel to each other and parallel to the guide, one guide from an inlet located at the upper end of the slider to the outlet facing the lower end of the guide and the other guide from an inlet located at the bottom end of the slider to the exit towards the upper end of the guide.

Preferably, the slider is formed by a pair of connected half-shells, each having a recess defining two guides together.

The features and advantages will become more apparent upon reading the following detailed description of a non-limiting exemplary embodiment of the invention with reference to the accompanying drawings.

Overview of the drawings

Giant. 1 is a schematic side view of a motor vehicle door showing a window control arrangement according to a first embodiment of the present invention;

Fig. 2 is an enlarged view showing a portion of the device of Fig. 1 that includes a guide and a corresponding slider;

Fig. 3 is an even larger scale view showing, inter alia, the slider of Fig. 2 in partial cross section and part of a guide;

Fig. 4 is a view similar to Fig. 3 showing another embodiment of the present invention;

Fig. 5 is a view similar to Fig. 3 showing another embodiment of the present invention; and Fig. 6 is a view similar to Fig. 3 showing yet another embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

As seen in Fig. 1, a motor vehicle door includes a sheet metal shell, generally designated as a shell 10, with an upper portion having an opening and forming a window frame 12, and a lower compartment 14.

The window pane 16 is mounted in the shell 20 to slide between an extended position in which it is in the window frame 12 and a position in which it is at least partially moved down into the lower compartment 14.

A sliding unit, generally designated as a sliding unit 18, is mounted in the lower compartment 14 for sliding the window panes 16 up and down.

The sliding unit 18 comprises a fixed guide 20 extending in the direction of travel of the pane 16 and a slider 22 slidable along the fixed guide 20 and supporting the pane 16 in its central lower region.

-3GB 292804 B6

Also mounted in the lower compartment 14 is a drive unit 24, which, in a known manner, includes a fixed housing 26, a drum 28 rotatable within the fixed housing 26, and means for rotating the drum 28, which in this embodiment is an electric motor unit with a reducer.

The feed unit 18 and the drive unit 24 are interconnected by a transmission comprising a pair of resilient skins 32.34.

The first end 36 and 38 of each resilient shell 32 and 34, respectively, is anchored to the rigid sleeve 26. the second end of each resilient shell 32, 34, respectively constituted by the respective ends 40 and 42 respectively, is connected to a displacement unit 18 and 22. as best seen in FIGS. 2 and 3.

Thus, as shown in Figures 2 and 3, the slider 22, which is mounted in a known manner for displacement on the rigid guide 20, is formed by a block, preferably of a rigid plastic material with a low friction coefficient such as polyamide or polytetrafluoroethylene.

The block forming the slider 22 is preferably formed by a pair of connected half-shells, each having a co-forming guide, which will be described in more detail below.

The pin 44 formed integrally with the block or with one of its parts acts as a support for the window pane 16 shown in FIG. 1.

The transmission includes, in addition to the two flexible sheaths 32. 34. also a cable slidable in both the flexible sheaths 32, 34 and passing in a known manner around the drum 28 shown in FIG. 1, the cable having two opposite ends connected to the feed unit 18 in a manner , which will now be explained in more detail.

The two opposite strands of the cable which extend from the drum are designated by the reference numerals 46 and 48 respectively.

According to the present invention, the slider 22 has a pair of inner guides for guiding the two cable branches 46, 48, these guides extending between the inlet openings to which the ends 40 and 42 of the flexible sheaths 32 and 34 respectively are anchored and respective opposite outlets facing the opposite ends of the fixed. guides 20.

The two opposite ends of the cable are anchored to respective ends of the fixed guide 20 via respective ends 54. 56. Thus, the two opposite branches of the cable have corresponding portions, indicated by 46a and 48a, respectively, that extend parallel to the fixed guide 20 from the outlet of the respective conduit 50. 52.

In the embodiment shown in FIG. 3, the two guides 50, 52 pass through the interior of the slider 22 without intersecting each other. From these two guides 50, 52 runs along a curved path from an inlet opening situated in the upper corner region of the slider 22 on the side facing the drive unit 24. This inlet opening has an axis that converges downwardly with the fixed guide 20. Guide 50 ends with an outlet situated at the lower end of the slider 20 and facing the lower end of the fixed guide 20.

The second guide 50 also extends along a curved path from the inlet opening situated in the lower corner region of the slider 22, again on the side facing the drive unit 24 (see FIG. 1). The axis of this inlet aperture converges upwardly with the fixed guide 20. This guide 52 terminates with an outlet situated in the upper end of the slider 22 and facing the upper end of the fixed guide 20.

-4GB 292804 B6

Giant. 4 shows a second embodiment in which the guides 50, 52 do not intersect within the slider 20.

For the sake of simplicity, parts identical or similar to those shown also in FIG. 3 are indicated by the same reference numerals in FIG.

The guide 50 from the internal guides 50, 52 extends along a curved path with a deflection substantially 90 ° from the upper inlet (corresponding to the end 40 of the upper elastic sheath 32), which is situated on the side of the slider 22 facing the drive unit 24 (see FIG. 1), and having an axis substantially perpendicular to the fixed guide 20. This guide 50 terminates at an outlet situated at the upper end of the slider 22 so as to deflect the end portion 46a of the cable up towards the upper end of the fixed guide 20.

The second inner guide 52 in the slider 22 extends along a curved path with a deflection substantially 90 ° from the lower inlet (corresponding to the end 42 of the lower elastic sheath 34) situated on the same, the aforementioned side of the slider 22 and having an axis substantially perpendicular to the fixed guide 20. The lower guide 52 terminates with an outlet situated at the lower end of the slider 22 and facing the lower end of the fixed guide 20 to deflect the cable portion 48a downward.

The third embodiment shown in Fig. 5 is similar to that shown in Fig. 3 in that the two guides 50, 52 of the slider 22 pass through without crossing each other.

For the sake of simplicity, the same reference numerals have been used again in Figure 5 to denote parts identical or similar to those shown in the preceding figures.

In FIG. 5, one inner guide 50 extends along a curved path from the upper inlet (corresponding to the end 40 of the flexible jacket 32), which is situated on the side of the slider 22 facing the drive unit 24 (see FIG. 1) and having an axis v. substantially perpendicular to the fixed guide 20. This guide 50 terminates, as in the embodiment shown in FIG. 3, an outlet situated at the lower end of the slider 22.

The second guide 52 extends along a curved path from the lower opening (corresponding to the end 42 of the flexible jacket 34) situated on the same, the aforementioned side of the slider 22 and having an axis substantially perpendicular to the fixed guide 20.

This guide 52 opens at the upper end of the slider 22, as in the embodiment shown in FIG. 3.

In Fig. 6, which illustrates a fourth embodiment of the present invention, for the sake of simplicity, the same reference numerals have been used again to denote parts identical or similar to those shown in the preceding figures.

In the embodiment of FIG. 6, the two guides 50, 52 also pass through the slider 22 without intersecting.

The guide 50 extends along a curved path from an inlet (corresponding to the end 40 of the upper elastic jacket 32) which is situated on the side of the slider 22 facing the drive unit 24 (see FIG. 1) and having an axis substantially perpendicular to the fixed guide 20 May

This guide 50 opens at the lower end of the slider 22 as in the embodiment shown in FIG. 5.

-5GB 292804 B6

However, the second guide 52 extends along a straight path substantially parallel to the fixed guide 20 from the lower inlet opening (corresponding to the end 42 of the lower resilient jacket 34) to the outlet situated at the upper end of the slider 22.

Of course, the arrangement shown in FIG. 6 could be reversed.

In addition, the slider 22 could have a pair of straight guides 50, 52 parallel to each other and parallel to the fixed guide 20 with inlet and outlet openings located at respective opposite ends.

This latter embodiment and the embodiment shown in FIG. 6 may not be suitable for installation in a motor vehicle door, since it could be difficult to fit the transmission portion corresponding to the upper elastic shell 32 in a compartment such as the compartment indicated by the lower compartment 14 without projected above the lower edge of the window frame 12.

However, this embodiment could be used in pairs with a similar window operating device for moving the pane by two sliders connected to the two end edges of the pane.

An application of this type could be suitable for shifting windows of buses, railway wagons and windows in buildings.

Claims (7)

PATENT CLAIMS A window control device, in particular for vehicle windows, comprising a sliding unit (18) 30 comprising a fixed guide (20) extending in the direction of travel of the sheet (16) and a slider (22) movable along the guide (20) and supporting the sheet (16) ), a drive unit (24) comprising a fixed housing (26), a drum (28) rotatable within the housing (26), and a means (30) for rotating the drum (28), and a transmission comprising a pair of flexible housings (32, 34); each having a first end (36, 38) anchored to the housing (26) and a second end (40,42) connected to the displacement unit (18), and a cable (46, 35 48) slidable in both of these sheaths (32, 34) ), passing around the drum (28) and having two opposite ends connected to the feed unit (18), characterized in that the second ends (40, 42) of the skins (32, 34) are anchored to the slider (22), 22) has a pair of inner guides (50, 52) for guiding the cable (46, 48), said guides (50, 52) extending between the inlet openings to the second ends (40, 42) of the sheaths (32, 34) are anchored, and the corresponding opposite outlets facing 40 to respective opposite ends of the guide (20), and the two opposite ends of the cable (46, 48) are anchored to respective ends of the guide (20). ), so that the respective parts (46a, 48a) of the cable (46, 48) located between the respective outlets and the respective ends of the guide (20) extend parallel to the guide (20). Window control device according to claim 1, characterized in that two guides 45 (50,52) extend inside the slider (22) without crossing each other, one of the two guides (50, 52) extending along a curved path from the inlet opening situated in the upper corner region of the slider (22) on the side facing the drive unit (24) and having an axis converging downwardly to the guide (20), an outlet situated at the lower end of the slider (22) and facing the lower end of the guide (20), and wherein the second guide (52) passes along 50 of a curved path from an inlet which is situated in the lower corner region of the slider (22) on the side facing the drive unit (24) and having an axis converging upward to the guide (20) to the exit situated at the upper end of the slider (22) ) and pointing towards the upper end of the guide (20). -6GB 292804 B6 Window control device according to claim 1, characterized in that one guide (50) of the guide (50, 52) inside the slider (22) extends along a curved path with a deflection substantially 90 ° from the upper inlet opening, which is situated on the side of the slider (22) facing the drive unit (24) and having an axis substantially perpendicular to the guide (20), an outlet situated at the upper end of the slider (22) and facing the upper end of the guide (20), a guide (52) within the slider (22) extends along a curved path with a deflection substantially 90 ° from the lower inlet opening situated on the same aforementioned side of the slider (22) and having an axis substantially perpendicular to the guide (20) at the lower end of the slider (22) and facing the lower end of the guide (20). Window control device according to claim 1, characterized in that two guides (50, 52) pass through the slider (22) without crossing each other, one guide (50) of these guides (50, 52) passing along a curved path from an upper inlet opening situated on the side of the slider (22) facing the drive unit (24) and having an axis substantially perpendicular to the guide (20), to an outlet situated at the upper end of the slider (22) and facing the upper end the guide (20), and the second guide (52) extends along a curved path from the lower inlet opening, which is situated on the side of the slider (22) facing the drive unit (24) and having an axis substantially perpendicular to the guide (20), to an outlet situated at the upper end of the slider (22) and facing the lower end of the guide (20). Window control device according to claim 1, characterized in that the two inner guides (50, 52) of the slider (22) pass inside the slider (22) without crossing one another, wherein one guide (50) of these guides (50, 52). ) inside the slider (22) extends along a curved path from an inlet opening situated on the side of the slider (22) facing the drive unit (24) having an axis substantially perpendicular to the guide (20) to an outlet situated at one end a slider (22) and facing a corresponding end of the guide (20), and a second guide (52) extends along a straight track parallel to the guide (20) from an inlet located at the opposite end of the slider (22) relative to the aforementioned end. to the exit situated at the other end. Window control device according to claim 5, characterized in that the guide (50) which follows the curved path has an outlet situated at the lower end of the slider (22) and pointing towards the lower end of the guide (20), the direct guide inlet opening. (52) is at this lower end. Window control device according to claim 1, characterized in that two guides (50, 52) within the slider (22) extend along straight tracks parallel to each other and parallel to the guide (20), one guide (50) from the input an opening situated in the upper end of the slider (22) to the outlet facing the lower end of the guide (20) and a second guide (52) from an inlet opening situated in the lower end of the slider (22) to the outlet facing the upper end of the guide (20). Window control device according to any one of the preceding claims, characterized in that the slider (22) is formed by a pair of connected half-shells, each of which has recesses which together define two guides (50, 52). 3 drawings