DE3143657A1 - DISC LIFTING DEVICE, IN PARTICULAR FOR MOTOR VEHICLES - Google Patents

Description

ILO Industrie RiuiUte S.; p.ü5. · "· ·· 68738-A / 8o

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Window lifting device, in particular for motor vehicles

The invention relates to a window pane lifting device, in particular for motor vehicles, with a fixed to a movable disc connectable and displaceable under the thrust of drive members along a guide Support body.

Window lifting devices of the type referred to are mounted inside a motor vehicle door and regulate the Position of the movable pane of this door. The disc lifting device has a fixed position in the mentioned door attached guide and a rail or a similar support body along the mentioned Guide is slidably movable under the thrust of drive organs and connected to the lower edge of the disc When moving along the guide, the disc slides with its side edges in a guide rail in the rear door jamb and a front guide rail in the lower part of the door.

Hex due to manufacturing tolerances or structural factors there may be deviations from the theoretically determined movement of the disc. For example, the Axes of the front and rear guide rails and those of the middle guide are not perfectly parallel; Farther the top cross-member of the door may also not be perfectly parallel to the horizontal base line of the door. Through the The resulting small deviations become constraining forces on the disc or on parts of the disc lifting device exerted, which reduce the life of the device and make operation difficult.

The object of the invention is to create a window pane lifting device in which the support body connected to the window pane can perform compensating movements during the shifting movement.

According to the invention this object is achieved in that the support body with the guide via an interposed first and an intermediate second carriage is articulated. This allows the im Carry out the necessary compensating movements together with the support body of the fixed disk. the As a result, the disc lifting device runs smoothly, so that high operating forces and, as a result, premature wear or failure can be avoided.

In an advantageous embodiment, the first slide is coupled to the guide in such a way that the angular position of the slide in a plane transverse to the guide regardless of its shift position is freely adjustable. The second slide can be supported on the first slide via connecting elements be, which are arranged between the two carriages so that the second carriage is opposite to the first carriage can move freely in a direction substantially transverse to the guide and parallel to the plane of the pane.

In a simple and inexpensive development, the connecting elements have pins that are attached to one of the two Carriages are arranged and slide in elongated holes that are attached to the other of the two carriages. Advantageous For this purpose, two pins can be arranged on the first slide, each of which passes through an elongated hole assigned to it in the second carriage leads, whereby the second carriage is slidably guided. There is also the possibility that the. Cones are formed on two screws which are fastened with nuts on the second carriage, the pin portions

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guide the screws in the transverse direction slidably through assigned elongated holes in the first carriage. 5

As a result / that the nuts can be removed by means of retaining elements that encompass them are arranged on the second slide so that they cannot rotate, the assembly can be carried out without counter-holding the nuts make; the holding element can be attached to the second slide simply by clipping onto it. “A particularly simple one The shape of the holding element has two metal strips arranged in mutually perpendicular planes. To cling the metal strips are designed so that they have a C-shaped ·. have curved central portion that the The nut grips around, with the ends facing each other, lying at the C-opening, by double angling are each formed on the outside to form U-shaped areas; the ends each grip into associated areas on the edge of the for the screw provided through hole in the second carriage.

The articulated coupling of the first slide with it. L Leadership is as further training through the allocation of .vaulted areas the guide and the first slide formed into flat areas of the slide or the guide; these Further development can be carried out in such a way that the guide essentially has a guide rail, which is inexpensive to manufacture L-shaped profile is. Which in a longitudinal groove with T-profile the sliding pieces arranged on the first slide is accommodated, the L-leg seated in the groove base arching back at the end z; and engages around a curved portion of the side wall of the opening portion of the longitudinal groove, whereby a hinge-like joint is formed. A production of the first carriage as a simple sheet metal part is thereby possible that on the plate-shaped first slide two aligned with one another and parallel to the guide. running plate pairs are bent, with between

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zv; egg tabs each have a slider is fixedly arranged. The device is designed so that the drive organ engages the first carriage in such a way that no impairment the angular mobility of the first slide occurs in a plane transverse to the guide. This can be broken down A simple way to achieve that a pair of tabs is bent out on the plate-shaped first carriage, daö im is arranged substantially transversely to the axis of the guide and that at each of the tabs one end of the drive causing rope is attached "

In an advantageous development it is provided that the second carriage is limited by a limited radial play between the pin and the elongated hole about one to the pin axis parallel axis is pivotable = by a limited radial play between the pin and elongated holes is also the Angular position of a plane of the second carriage running parallel to the plane of the disk about an essentially parallel one freely adjustable for the longitudinal extension of the door and perpendicular to the guide axis.

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Embodiments of the invention are shown in the drawing and described in more detail below? 5

show it:

Fig. 1 is a schematic perspective view of a motor vehicle door a disc lifting device,

FIG. 2 shows the window lifting device of FIG in front elevation and enlarged Scale,

Fig. 3 is an exploded perspective

tivische view of an assembly of Fig. 2,

4 is an exploded perspective view of a further embodiment

management form of the assembly of Fig. 3,

Fig. 5 is an exploded perspective view in which in enlarged

Scale items of Fig »4 are shown.

In Figure 1, a door designated as a whole by 1 is one Motor vehicle shown, which has a smooth lower part 2 and an upper frame 3, which consists of an inclined front post 4, a rear post 5 and a cross member 6 is formed, which together with the upper Edge of the lower part 2 form a window opening 7, the is closed by a movable disc 8. The disc 8 is designated as a whole by 9 and the window pane lifting device arranged in the lower part 2 is moved.

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In the example shown, the rear edge of the Washer 8 in a guide rail 1o extending along the post 5, while the middle lower section the disc 8, as explained in more detail below, is firmly connected to a support body, which consists of a rail 11 which runs along a parallel to the guide rail 1o arranged guide 12 for the device 9 movable is. The guide rail 1o is also parallel to a guide rail 13, which is located in the lower part 2 is located and in which the front edge of the disc 8 engages. It can be seen that the door 1 extends, as is the case with the doors almost all motor vehicles is the case, not over a plane, but over a cylindrical surface, which is shown in Fig. is graphically represented by the section 14 of a cylindrical surface. The envelope lines 15 of the cylindrical surface are usually parallel to the top and bottom the window opening 7 and the parallels of the cylindrical surface, on the other hand, form a specific, non-zero angle with the axes of the guide rails 1o and 13 and the guide 12.

From the above it follows that the points of the disc 8 when moving under the thrust of the Device 9 describe ways that theoretically represent cylindrical helical lines. In practice there is one Such a situation, however, not always, because small design deviations or only the manufacturing tolerances lead to it. that both the axes of the guide rails 1o and 13 and of the guide 12 are not completely parallel to one another, as well as the traverse 6 is not completely parallel to the surface lines 15. As a result, each point defines the Disk 8 actually goes back a way that deviates slightly from its theoretical helix having. The deviations have a first,

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extending substantially parallel to the surface lines 15 Component and a second component which is opposite the cylindrical surface 14 substantially in runs in the radial direction and is due to a rotation of the disk 8 around the axis of the guide 12 »

The window lifting device shown in detail in FIG was performed specifically for the purpose of lifting and - to lower the disc 8 without opposing the movements due to the small deviations mentioned, so that the development of undesirable and often considerable stresses is avoided, which would affect the service life of the device reduce, and make it difficult to operate.

According to the illustration in FIG. 2, the guide 12 has two transversely directed attachments at its opposite ends. set pieces 17 * and 18, which are arranged on the same side of the guide 12 and of which each one rotatable disc 19 carries. The rigid assembly, consisting from the guide 12 and from the extensions 17 and 18 is with an upper clamp 2o and a lower clamp each of which has a threaded pin 22 which secures the assembly 12, 17, 18 on the lower part 2 the door 1 allows.

The end pieces 17 and 18 are at their ends 23 at the front with socket pipe pieces 24 of respective casing pipes 25 and 26, the other ends of which via socket pipe pieces 2 7 are attached to respective extensions 28 and 29 of a box 3o. This has a flange 31 with Holes 32 through the screws (not shown) for fastening the box 3o in the lower part 2 of the door 1 to lead. The box 3o has a rotatable pin 33 which

³ S carries a drum 34 which is driven by the actuation of a drive shaft 35 protruding from the box 31. The drum 34 carries a helically wound ax 36, preferably a wire dor into the casing pipes

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25 and 26 is drawn in, runs around the discs 19 and the opposite ends of which lead through two bores 37 (FIG. 3), which essentially lead in to the rail 11 Fixed brackets 38 are attached, on the insides of which said ends of the thread resiliently via helical springs 39 are attached.

According to the representation shown in detail in FIG. 3, the rail 11 consists of a preferably metal manufactured profile with a substantially U-shaped Cross section, the cavity of which is directed upwards, in order to accommodate the lower edge of the disc 8, with which the rail 11, e.g. by clamping or gluing is firmly connected.

The lower wall of the rail 11 is fixed with a side upper flange 4o of a plate 41 connected, which is substantially in one plane with the disc 8 and is substantially rectangular in shape. This plate 41 has two through holes 42 and 43 in the Near the lower edge of the plate 41 are attached. Screws 44 each lead through the bores 42 and 43 and 45, each with a nut 46 and a washer 47 is provided. The screw 44 leads through the bore 42 and a corresponding bore 48, which is mounted in a plate 49. The screw 45 leads through the bore 43 and an elongated hole 5o, whose axis is perpendicular to that of the rail 11 and that in the plate 4 9 is mounted. The latter has a substantially rectangular shape in plan and is in two essentially identical sections 51 and 52 to one another by a central one running parallel to the flange 4o and shoulder 53 running away from section 51 in the same direction. The section 51 is arranged at the top

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and provided with the bore 48 and the elongated hole 5o, while the section 52 is at the bottom and has two elongated holes 54, each of which is surrounded by a collar 55 and their "elongated hole axes in one." essentially to that of the surface lines 15 of the cylinder section 14 parallel direction, i.e. substantially transverse to Guide 12 and parallel to the disc 8.

The plates 41 and 49 together form a slide 56 which slides on two riveted pins 57 in a substantially parallel direction to the surface lines 15. Each pin 57 has a cylindrical one with a small ¹ .

radial play in the collar 55 of the relevant elongated hole 54 engaging central part, a first riveted end part, which is connected to a washer 58; which has sliding contact with an end face of the collar 55, and a second end portion which is riveted into a corresponding bore 59 is attached. The bore 59 is located in the one sliding along the guide 12 and the carriage 6o "holding the carriage 56"

The carriage 6o comprises a plate with the bores 59> on which not only the tabs 38 are formed by cutting and bending, but two further pairs of Lugs 61 and 62 that are aligned with one another and perpendicular to the lugs 38. The tabs 61 and have threaded bores in each of which screws 63 sit, which serve to attach to each pair of tabs 61 and 62 Preferably made of plastic material and slidably connected to the guide 12 slide 64 to be attached.

According to the illustration in Fig. 3, the guide 12 in Cross-section substantially in the shape of an L, in which the first leg 65 is substantially flat, while

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the second leg 66 is curved back over the leg 65 and bent back side edge. 5

The leg 66 slides in a longitudinal groove 67, which in. each slider 64 is attached and in cross section in has a substantial T-shape. The groove 67 comprises in cross section one communicating with the outside Entrance section, which is delimited by two convex, opposite surfaces with the opposite Co-operating surfaces of a flat part of the leg 6.6, and an inner portion of the one flat longitudinal surface with the outer convex surface of the curved back edge of the leg 66 cooperates.

When coupling between sliding pieces 64 and guide it allows the fact that convex surfaces of one component come into contact with flat surfaces of the other component and vice versa stand to move the carriage 6o along the guide 12, the carriage 6o not in its angular position set in a plane perpendicular to the guide 12 is because such a coupling forms a hinge with an axis coinciding with the guide 12.

From the above it follows that the carriage 6o has the possibility in use, together with the Carriage 56; with the rail 11 and with the disk 8 small angular movements over the door 1 around the axis the guide 12 perform. Since the pin 57 in the through the respective elongated holes 54 formed guides can slide, the carriage 56 also has the option of being together with the rail 11 and the disc 8 small displacements opposite the door 1 in a substantially coincident with the surface lines 15 of the cylindrical surface 14 parallel direction. There between the cones

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and the respective holes 54 necessarily have a certain radial play, the slide 56 finally has the possibility, together with the rail 11 and the Disk 8 small angular movements with respect to the door 1 to execute a radial axis of the cylindrical surface 14 »

Overall, the result is that the disc 8, although it is properly guided by the guide 12, has the possibility of executing slight transverse and angular movements compared to the latter ι thereby essentially all deviations normally encountered on doors can be compensated.
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The above-described results can also be achieved if the carriages 56 and 6o are 4 shown carriages 68 and 69 are replaced, their individual parts with the same, for the corresponding Parts of the carriage 56 and 6o used are identified by numbers.

In contrast to the corresponding carriage 56, the carriage 68 is made in a single piece, namely as a plate 7o which is folded so that mutually parallel portions 71 and 72 of substantially rectangular These are connected to one another by an intermediate section 73 oriented perpendicular to them tied together. The section 71 is arranged above the other section and is firmly connected to the lower wall of the rail 11. The section 72 has two bores 74. Four radial grooves extend from the edge of each of these bore 74 from which is attached in that of the surfaces of the section 72 which are directed towards the carriage 69.

Behind section 72 and below section 73 are two Arranged holding elements 76, each of which, as shown in detail in Fig., Receives a square nut 77,

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The square nut 77 is arranged essentially coaxially to the corresponding bore 74.

Each holding element 76 comprises two mutually perpendicular Metal parts 79 arranged on planes. Each of these metal parts 79 consists of a metal strip bent to a C, the opposite ends of which are folded over to the outside. This creates two ribs 8o, each of which is suitable is, in the appropriate. Engage groove 75.

Furthermore, the metal part 79 has two U-shaped seats 81, each suitable for receiving the part of the section 72 which the surrounding bore 74 in question, namely for fastening the respective retaining element 76 and the relevant nut on - the plate 7o.

The carriage 69 is essentially with the carriage 6o identical, from which it differs in the fact that with it the bore / 59 of the carriage6o through two elongated holes 82 are replaced, the main axes of which are parallel to the rail 11. Each elongated hole 82 sits with a slight radial play a cylindrical transition part 83 of a screw 84, which has a cylinder head 85 with a larger Diameter than that of the transition part 83 to prevent passage through the relevant elongated hole 82 and a Threaded shaft 86 includes, which is in the bore 78 of the relevant Mother 77 is seated.

Another difference between the carriages 6o and 69 results from the fact that in the latter the sliders 64 are not screwed on, but are pressed directly onto the relevant bracket pairs 61 and 62. In this regard it should be noted that a similar attachment of the sliders 64 also performs for the carriage 6o excluded ³ ^ can be.

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There can of course be numerous changes to the. alone as an example without restrictive meaning described window lifting device can be made without this would depart from the scope of this invention.

Claims (1)

* · * * * · · · ■ · ν ι «ι / ■ ο ρ r ¹ V 314 36b ι IAO Industrie Riunite S.p.A. October 27, 81 Beinasco / Turin ZL / Br / be 68738-A / 8O C. Greco - 9 G. Fiorito -2 Claims 1. Window lifting device, especially for motor vehicles, with a firmly connectable to a movable disc and under the thrust of drive elements Support body displaceable along a guide, characterized in that the support body (11) with the guide (12) via an intermediate first (60,69) and an intermediary second carriage (56,68) is articulated. 2. Apparatus according to claim 1, characterized in that the first carriage (6o, 69) with the guide (12) is coupled so that the angular position of the carriage (6o, 69) in a plane transverse to the guide (12) is freely adjustable regardless of its shift position. 3. Device according to one or both of the preceding Claims, characterized in that the second slide (56, 68) on the first slide (6o, 69) is supported by connecting elements (54,57 or 82,83) which are between the two carriages (6o, 69 and 56,68) are arranged so that the second carriage (56,68) relative to the first carriage (6o, 69) freely in a can move substantially transversely to the guide (12) and in the direction parallel to the plane of the disk. IAO Industrie Riunite S.p.A. 68738-A / 8o '··' · ^: · 3U3657 4. Apparatus according to claim 3, characterized in that the connecting elements are pins (57,83) have that on one of the two carriages (6o, 69 or 56,68) are arranged and in elongated holes (54,82) slide, which are arranged on the other of the two carriages. 5. Apparatus according to claim 4, characterized in that two pins (57) on the first carriage (6o) are arranged, each of which by a 'him associated elongated hole (54) in the second slide (56) leads, whereby the second slide (56) is slidably guided is. (Fig. 3). 6. Apparatus according to claim 4, characterized in that the pin (83) on two screws (84) are formed, which are fastened with nuts (77) on the second carriage (68), wherein the pin sections guide the screws (84) slidably in the transverse direction through associated elongated holes (82) in the first carriage (69) (Fig. 4). 7. Apparatus according to claim 6, characterized in that the nuts (77) by means of encompassing them Holding elements (76) are removably arranged on the second slide (68) in a rotationally secure manner. 8. Apparatus according to claim 7, characterized in that g e k e η η, that the holding element (76) for the nut (77) is attached to the second slide (68) by clipping is. . 9. Device according to one or more of the preceding claims, characterized in that the Holding element (76) made of two mutually perpendicular There is metal strips (79) arranged in planes. IAO Industrie Riunite S.p.A. ... - 68738-A / 8o Ιο. Device according to claim 9, characterized in that g e k e η η - shows that the metal strips (79) a Have a C-shaped curved central portion which engages around the nut (77), and that the facing, ends lying at the C-opening by double angling to the outside in each case to a U-shaped area (81) are formed, and that the ends each in associated areas (75) on the edge of the for the screw (84) provided through opening (74) engage in the second slide (68). 11. Device according to one or more of the preceding Claims, characterized in that the articulated coupling of the first slide (6o, 69) with the guide (12) by assigning curved areas of the guide (12) and the carriage (6o, 69) flat areas of the carriage (6o, 69) or the guide (12) is formed. 12. The device according to claim 11, characterized in that the guide (12) is a guide rail is with a substantially L-shaped profile, which is in a longitudinal groove (67) with T-profile of the first Slides (6o, 69) arranged sliding pieces (64) is received, wherein the L-leg seated in the groove base (66) is arched back at the end and has an arched reticule Side wall of the opening portion of the longitudinal groove .. (67) -trapsed, creating a hinge-like joint is formed. 13. Device according to one or more of the preceding Claims, characterized in that on the plate-shaped first carriage (6o, 69) two together aligned and parallel to the guide (12) ν * to ο ο α ve ο > w · ο α e ο e · ο «* - · ο Pairs of tabs (61, 62) are bent, with between two tabs (61 and 62) each with a slider (64) is fixedly arranged. 14. Device according to one or more of the preceding Claims, characterized in that the drive member (36) on the first slide (6o, 69) attacks that no impairment of the angular mobility of the first slide (6o, 69) in a plane occurs across the guide (12). 15. The device according to claim 14, characterized in that the plate-shaped first carriage (6o, .6'9) a pair of tabs (38) is bent, which is arranged essentially transversely to the axis of the guide (12) and that one end of a cable (36) causing the drive is fastened to each of the tabs (38). 16. The device according to claim 4, characterized in that by a limited radial play between the pin (57, 83) and the elongated hole (54, 82), the second slide delimits around a parallel to the pin axis horizontal axis is pivotable. 17. The device according to claim 4, characterized in that by a limited radial play between the pin (57, 83) and elongated holes (54, 82) the angular position of a parallel to the disk plane Plane of the second carriage (56,68) around a substantially parallel to the longitudinal extension of the door (1) and perpendicular to the guide (12) extending axis is freely adjustable.