Internal opening system for the rear doors of vehicles

Description

[0001] This invention relates to an internal opening system for the rear doors of vehicles, normally in industrial vehicles, provided with rear doors. These vehicles generally have two doors, which might be equal to each other in size or different from each other, and in order to open them it is first necessary to open one of the doors from the exterior and then open the other door from the interior.

[0002] Document DE-U-9214220 describes an internal opening system for the rear doors of vehicles.

[0003] The opening systems are usually large in size due to the fact that the doors themselves are large and have a lot of space between the inner and outer metal panels of the doors.

[0004] Nevertheless, there are doors that do not have so much space between the inner and outer metal panels, in which case the solution usually adopted is to locate the opening mechanism on the interior of the door fixed to its inner metal panel.

[0005] This type of location has several disadvantages, such as uncomfortable access from the exterior of the vehicle in order to open the door; the movement that it is necessary to apply onto the operating handle for opening the door is not very natural as it does not follow the opening direction of the door because the movement of the handle is perpendicular to the turning direction of the door; there is the possibility that the load in the vehicle might shift and prevent access for internal opening, so that it would be necessary to move away the shifted load in order to proceed with opening.

[0006] One object of this invention is to provide an internal opening system for the rear doors of vehicles which is small in size and enables it to be fixed in the edge of small doors.

[0007] Another object of the invention is to provide an internal opening system that noticeably reduces the final effort to be applied on the opening handle.

[0008] Another object of the invention is to provide an internal opening system that helps to reduce the opening torque of the locks in the handle, as well as limiting the travel of the handle for this opening.

[0009] To put these objectives into practice, the invention concerns an opening system which is mounted on the interior of the edge of the door leaf or wing which is opened from the interior, i.e. the door leaf which is open in second place, with a communication that passes through the said edge, allowing the placing of a handle with limited turning in order to carry out the opening of the door leaf in question.

[0010] Thus, on the interior side of the edge, a rectangular-shaped flat casing is placed, which has a wide through hole towards one side of its centre, an approximately centred projection towards the interior of the door and two holes, one at each end of this casing.

[0011] An L-shaped piece of trim or ornamenter, slightly longer than the length of the casing, is placed on the external part of the edge of the door and assemble to it by clipping, taking in the corner, the edge and part of the interior side of the door. One of the wings or sides of this trim, the longer one, is placed over the edge of the door and the shorter one over the interior side of the door.

[0012] The clipping on of the trim is carried out by an internal ledge in its shorter wing, which is inserted by pressing it into an opening made in the interior side of the door.

[0013] The longer wing of the trim is provided with two end holes, which are separated from each other the same distance as the two end holes in the casing referred to previously, and a transversal recess open to the exterior and directed towards the exterior of the door, with the position of this recess corresponding with that of the larger hole in the casing described earlier.

[0014] The spindle or neck of a handle passes through the larger hole in the casing and through the opening in the trim, with a torsion spring around this spindle and housed in the interior of a groove. The spindle protrudes inward and receives a toothed pinion, on which a bushing or sleeve is placed that surrounds a small axial closure part received in an axial blind hollow in the spindle.

[0015] Towards one side of this assembly and in the end holes in the casing and in the trim, a bolt is passed through, with its free end receiving a support. This support is an uneven part with two flat portions parallel to each other and also parallel to the planes of the trim and of the casing, with both portions being connected by a vertical sector.

[0016] The lower portion is placed on the casing and is provided with a hole through which the previously mentioned bolt passes and is secured by a weldable nut.

[0017] The higher portion of this support has a hole in which the bushing of the handle is positioned and fixed by the head of the axial closure part.

[0018] This higher portion of the support is provided with a wide vertical projection with a free U-shaped end, in which the end of the sheath of the cable is held, that comes from the upper door closer in the frame of the vehicle.

[0019] The previously described spring is fixed to the base of the mechanism and to the pinion of the handle so that the latter returns to its rest position once the handle is released after being operated.

[0020] The support described is fixed and the handle makes the pinion turn when it is operated by the user from the exterior of the edge of the door.

[0021] On the inward centred projection of the casing is situated firstly the base of a second adjustable support, which also has a wide vertical projection finishing in a U-shaped end, in which the part of the cable that comes from the lower lock of the door will be accommodated.

[0022] The base of this projection has a cut-out, into which the centred projection of the casing enters, with this base resting on the surface of the casing and on its other end there is another cut-out that remains at the height of the other hole in the casing and in the trim.

[0023] Above the base of this adjustable support and on the centred projection of the casing is arranged a second pinion that engages with that of the handle and over this is the holed base of a butterfly-shaped part ("butterfly") fixed by a bushing, which in turn is secured in position by the head of another small axial closure part that is housed in an axial blind hollow in the centred projection of the casing.

[0024] The butterfly is provided with two vertical projections, aligned with each other and on both sides of its central hole, with these two projections having U-shaped ends, which remain in the same theoretical horizontal continent plane in relation to the ends of the two projections of the fixed support and adjustable support.

[0025] The U-shaped ends of the projections of the butterfly receive the ends of the cables that come from the two locks, upper and lower, and from the projections of the two supports, in such a way that the turning of the handle is transmitted to its pinion, which transmits it to the pinion of the butterfly, causing it to turn.

[0026] The projections on the butterfly remain individually substantially superficially opposite the projections of the two supports when the hand is in its non-operated or rest position, with the ends of the sheaths of the cables secured to the U-shaped ends of the projections of the two supports, fixed and adjustable.

[0027] In this position, and on turning the handle and the butterfly, it puts tension non the two ends of the cable, causing the opening of the two locks, upper and lower, given that in the position of the unit prepared to be operated, both supports are fixed.

[0028] The turning of the handle is very small, for instance of the order of 28 degrees, with which it does not protrude from the plan view of the edge of the door.

[0029] As stated previously, one of the bolts that connects the trim, the casing and the support is fixed, so the support on that side has been called fixed support.

[0030] The other support, called adjustable, can have some play in its position in order to eliminate the problem known as "double opening", which occurs when one of the two locks on the door opens before the other one and this can be noticed when the mechanism is operated.

[0031] The opening mechanism, instead of including the said fixed bolt, can have a lug for fastening this side of the operating or drive system and on the other side a bolt to fasten and allow the appropriate adjustment of the opening.

[0032] The size of the butterfly is small, and the size of the operating or drive system is too, helping to this effect in the reduction of the lock opening torques on the handle.

[0033] As described, the transmission of stresses from the door locks to the opening handle are carried out by means of the pinions described, which reduce the final effort required for opening the door.

[0034] These pinions can be replaced by a system of cams in order to obtain the desired result as regards operating torques.

[0035] A preferential solution for the opening device is represented on the attached sheets of drawings, in which, without any restrictive nature, the following are shown:

• Figure 1 is a front view of the rear part of a vehicle in which the invention is applied.
• Figure 2 is a perspective of the centre of the door in which the invention is applied.
• Figure 3 is an external elevation of the opening mechanism.
• Figure 4 is a view of Figure 3, as seen from behind.
• Figure 5 is a view in accordance with direction M in Figure 4.
• Figure 6 is the result of the cross section made along I-I in Figure 4.
• Figure 7 is a view of Figure 4, as seen from the left.
• Figure 8 is a detail of the assembly of the mechanism in the door.

[0036] Looking now at Figure 1, we can appreciate the two rear doors (18, 19) of a vehicle, with the locks (20, 20') of both, in which those in the position (20) correspond to the smaller door (18) and those of the position (20') correspond to the larger one. The larger leaf (19) is opened from the exterior by means of the external handle or control (21) and the smaller leaf is opened from the interior with the conventional handle (22).

[0037] The invention concerns the application of the internal opening of the leaf (18) from its edge (17), once that the larger leaf (19) has been opened.

[0038] The arrangement of the said internal opening system for the leaf (18) is described externally in Figure 2, in which the trim (12) is shown, fixed to the side by means of its being clipped onto its surface. The opening system remains behind the edge (16) and protrudes along the internal face (15) of the door.

[0039] In accordance with Figure 3, it is possible to appreciate the trim (12) with its recess (23) in order to allow the passage of the handle (2) and the fastenings (14, 13) for the mechanism mounted on the rear casing (1), in which the fixed support (6), the butterfly (4) and the adjustable support (5) can also be observed. The handle (2) indicates its maximum turning movement .

[0040] According to Figure 4, we can appreciate the fixed support (6) secured to the casing (1) and trim (12) by means of the weldable bolt (14) and also secured by the head of the small axial part (28) onto the bushing of the handle (2). On one side the projection (23) can be observed and below it the pinion (10) on the handle (2).

[0041] Towards the centre is situated the butterfly (4) with its two aligned projections (24), as well as the pinion (9) engaged with the pinion (10) of the support (6). This butterfly turns on the small axial part (29) when the handle is turned.

[0042] Below is positioned the adjustable support (5), which includes the vertical projection (25) and the encased nut (13), and towards the right we can observe the internal projection or recess (26) by which the trim will be clipped into an open cavity in the leaf of the door.

[0043] For the placing of this mechanism, a corresponding cavity will be prepared in the surface of the edge (16) of the door leaf, as it is obvious to point out, so that in this cavity the appropriate means are formed for the fixing of the casing (1), for instance. These means might be lugs that protrude from the thickness of the edge towards the cavity and are holed, to which the casing in question is fixed, as suggested by Figure 8, in which a cavity (30) can be observed, cut into the edge (17), with the holed lugs (31) protruding into this cavity.

[0044] In Figure 5 we can point out the U-shaped ends of the four projections, two of which (23, 25) are on the fixed and adjustable supports respectively, and the other two (24) are on the butterfly, with each of the latter being aligned with each of the former.

[0045] Figure 6 allows us to check the joint assembly of all the items, from the exterior trim (12) on which the casing (1) is fixed and, secured to a cavity in the edge (17) holds the rest of the mechanisms.

[0046] Thus, we can appreciate the two supports, fixed (5) and adjustable (6). The first of these is secured to the casing (1) by the system (14) on its lower portion and by the bushing (7) mounted on the closure part (28) of the spindle of the handle (2).

[0047] Passing through the adjustable support (6) are the projection (32) from the casing, through a cut-out (33) in the support, and the system (13) at the end, permitting the appropriate adjustment, which has already been referred to previously.

[0048] The spindle of the handle includes a pinion (10) that engages with the pinion (9) of the internal projection (32), which is situated on the support (6). Above the pinion (9), the base of the butterfly (4) is supported, controlled by the bushing (8).

[0049] The movement of the handle (2) causes its pinion to make the other pinion (9) turn, causing the turning of the butterfly (4). When this turning is carried out the spring (3) on the spindle of the handle makes this handle return to its initial position.

[0050] From Figure 7, we can point out the positions of the projections (23) of the support (6), (24) of the butterfly (4) and (25) of the support (5), whose free U-shaped allow them to take in the ends of the sheaths of the cables that come form the upper and lower locks (20).

[0051] Therefore, the end of the sheath of the cable from the upper lock is fixed in the projection (23) and the end of the corresponding cable is fixed in the projection (24) parallel and aligned with it. For its part, the sheath that comes from the lower lock is fixed in the projection (25), while the end of the corresponding cable is fixed in the nearby projection (24).

[0052] With the turning of the handle (2), the turning of the butterfly (4) takes place and consequently the projections (24) move away from the projections (23, 25) so that tension is placed on the cables of the upper and lower locks, causing them to open. When the action on the handle is released, the torsion spring (3) makes the system return to its initial position.

Claims

1. Internal opening system for the rear doors of vehicles, of the type which are connected to the upper and lower locks (20) of a door leaf (18) by means of a control (22), generally internal and operated from the internal side of the said leaf, which is characterised by a unit or assembly comprising a handle (2) and a piece of frim (12) which in operation is mounted on the edge (17) of the door leaf (18) in which the handle (2) is situated that turns in a substantially parallel plane to the surface of the said edge, protruding slightly from the surface mentioned on which the piece of trim (12) is situated and clipped to the body of the door, with this trim (12) being provided with a horizontal side opening (23), open towards one side, and two end holes, upper and lower, by a plate by way of a casing (1), which is situated on the internal side or face of the trim (12) with a hole through which the spindle of the handle (2) passes and another two end holes that coincide with those of the trim (12), as well as a projection (32) towards the interior of the edge (17) of the door (18), in that this casing (1) in mounted condition is situated over a cavity (30) in the surface of the edge (17), and is secured to this cavity (30) through means of connection to lugs (31) on this cavity, by a cam or respectively a toothed pinion (10) fixed to the spindle of the handle (2) by an upper bushing (7), with this bushing (7) being secured by the head of an axial part (28) which becomes housed in an axial blind hollow in the said spindle, with the bushing (7) in turn receiving a flat portion of a fixed support (6) with an uneven shape, whose other portion being fixed to one of the end holes in the casing (1) and secured to the trim (12) by means of a bolt and weldable nut (14), the pinion (10) turning with the spindle of the handle and being connected with a torsion spring (3) fastened to the base of the mechanism, by another support (5) with a cut-out hole (33) through which the projection (32) from the casing (1) passes through and is secured to the other end of the said casing (1) and to the other end of the trim (12) by means of a bolt and an encased nut (13), wherein above this support and on the projection (32) is accommodated a cam or respectively a toothed pinion (9) which receives at the top the flat base of a butterfly shaped part (4), which is arranged below a bushing (8) and closed by the head of a closure part (29) lodged in an axial hollow hole in the_projection (32), in that the cam or respectively the pinion (9) turns when the cam or respectively pinion (10) of the handle turns, causing the butterfly shaped part (4) to turn,
   and by some vertical projections (23,24,25) protruding towards the interior and finishing in U-shaped ends that stand out from the two supports (5, 6), with one projection (23,25) on each one and two projections (24) on the butterfly shaped part (4), which are aligned at the upper end and equally separated from the centre on which the said butterfly shaped part (4) turns, wherein in the rest position of the mechanism, each projection (23,25) on the supports is to be found in a position parallel to each one of the projections (24) on the butterfly shaped part (4),    wherein in mounted condition the ends of the sheaths of the cables that come from the locks (20) are secured to each of the projections (23,25) on the supports (5,6), whereas the ends of the cables are secured to the projections (24) on the butterfly shaped part (4).

2. Internal opening system for the rear doors of vehicles, in accordance with claim 1, characterised in that the fastening for the trim (12) and the casing (1) at one of its ends can be carried out by means of a lug on the trim that is received in a recess in the casing.

3. Internal opening system for the rear doors of vehicles, in accordance with claim 1, characterised in that the angular travel of the handle (2) is preferably of about 28 degrees.

Ansprüche

1. Internes Öffnungssystem für die hintere Tür von Fahrzeugen, des Typs, der mit den oberen und oberen Feststellvorrichtungen (20) eines Türflügels mit Hilfe einer Steuerung (22) verbunden ist, die normalerweise intern ist und von der Innenseite besagten Flügels aus bedient wird, welcher durch eine Einheit oder Anordnung gekennzeichnet ist, einschließlich eines Griffs (2) und ein Stück Türverkleidung (12), das in Betrieb an der Kante (17) des Türflügels (18) befestigt ist, in der sich der Griff (2) befindet, der sich auf einer im wesentlichen parallelen Ebene mit besagter Kante dreht, und dabei leicht aus der erwähnten Oberfläche hervorsteht, auf der das Stück Türverkleidung (12) gelegen ist und an das Gehäuse der Tür geklammert ist, wobei diese Türverkleidung (12) mit einer horizontalen seitlichen Öffnung (23) versehen ist, die zu einer Seite hin geöffnet ist, sowie zwei Löchern an den Enden, einem oberen und einem unteren, durch eine Platte mittels eines Gehäsues (1), das an der inneren Seite oder Oberfläche der Türverkleidung (12) gelegen ist, mit einem Loch, durch dass die Spindel des Griffs (2) verläuft, und weiteren zwei Löchern an den Enden, die mit jenen der Türverkleidung (12) zusammenfallen, ebenso als Projektion (32) in Richtung des Inneren der Kante (17) der Tür (18), in der dieses Gehäuse (1) in montiertem Zustand gelegen ist, und zwar über einer Aushöhlung (30) in der Oberfläche der Kante (17), und ist an diese Aushöhlung (30) mit Hilfe von Verbindungen mit Vorsprüngen (31) an dieser Aushöhlung befestigt, und zwar durch einen Nocken bzw. durch ein verzahntes Ritzel (10), das an der Spindel des Griffs (2) durch eine obere Buchse (7) befestigt ist, wobei diese Buchse (7) durch das Kopfstück eines axiales Teils (28) befestigt ist, das in einer axialen Grundbohrung in besagter Spindel angebracht wird, wobei die Buchse (7) wiederum in einen flachen Abschnitt einer befestigten Stütze (6) mit einer unebenen Form untergebracht wird, dessen anderer Abschnitt an eines der Endlöcher in dem Gehäuse (1) befestigt wird und an der Türverkleidung (12) mit Hilfe eines Bolzens und einer schweißbaren Mutter (14) befestigt wird, wobei das Ritzel (10) mit der Spindel des Griffs (2) gedreht wird und mit einer Drehstabfeder (3) verbunden wird, die an der Basis des Mechanismus befestigt ist, und zwar durch eine weitere Stütze (5) mit einem eingeschnittenen Loch (33), durch das die Projektion (32) des Gehäuses (1) hindurch verläuft, und wird an anderen Ende des besagten Gehäuses (1) und am anderem Ende der Türverkleidung (12) befestigt, und zwar mit Hilfe eines Bolzens und einer ummantelten Mutter (13), in der oberhalb dieser Stütze und auf der Projektion (32) ein Nocken bzw. ein verzahntes Ritzel (9) untergebracht wird (5), das am oberen Ende die flache Basis eines schmetterlingsförmigen Teils (4) aufnimmt, das unterhalb einer Buchse (8) angebracht und durch das Kopfteil eines Verschlussteils (29) abgesperrt wird, das in einem axialen hohlen Loch in der Projektion (32) untergebracht ist, in dem sich der Nocken bzw. das Ritzel (9) dreht, wenn sich der Nocken bzw. das Ritzel (10) des Griffs dreht, wodurch sich das schmetterlingsförmige Teil (4) dreht, und durch einige vertikale Projektionen (23, 24, 25), die nach innen hin hervorstehen und in U-förmigen Enden auslaufen, welche von den zwei Stützen (5, 6) hervorstehen, mit einer Projektion (23, 25) an jeder einzelnen bzw. zwei Projektionen (24) an dem schmetterlingsförmigen Teil (4), die an dem oberen Ende angeordnet sind und in gleichen Abständen vom Zentrum getrennt sind, auf dem sich besagtes schmetterlingsförmige Teil (4) dreht, wobei in der Ruhestellung des Mechanismus' jede Projektion (23, 25) auf den Stützen (5, 6) in einer Position zu finden ist, die parallel zu jeder der Projektionen auf dem schmetterlingsförmigen Teil (4) liegt, wobei in montiertem Zustand die Enden der Kabelhüllen, die aus den Feststellvorrichtungen (20) kommen, an jede der Projektionen (23, 25) auf den Stützen befestigt ist, während die Enden der Kabel an den Projektionen (24) auf dem schmetterlingsförmigen Teil (4) befestigt sind.

2. Internes Öffnungssystem für die hintere Tür von Fahrzeugen, entsprechend Anspruch 1, das dadurch gekennzeichnet ist, dass die Befestigung für die Türverkleidung (12) und das Gehäuse (1) an einem seiner Enden mit Hilfe eines Ansatzes auf der Türverkleidung durchgeführt werden kann, der in einer Vertiefung in dem Gehäuse aufgenommen wird.

3. Internes Öffnungssystem für die hintere Tür von Fahrzeugen, entsprechend Anspruch 1, das dadurch gekennzeichnet ist, dass der Drehwinkel des Griffs (2) vorzugsweise etwa 28 Grad beträgt.

Revendications

1. Système d'ouverture interne pour les portières arrières des véhicules, du type de ceux qui sont connectés aux verrous supérieur et inférieur (20) d'un ventail de porte (18) au moyen d'une commande (22) généralement interne et activée à partir de la partie intérieure de ce ventail, qui est caractérisé par le fait qu'une unité ou un ensemble comprenant une poignée en fonctionnement est monté sur le bord (17) du ventail (18) dans lequel la poignée (2) est située et tourne sur un plan parallèle à la surface de ce bord, qui ressort légèrement de la surface mentionnée sur laquelle une garniture (12) est située et accrochée au corps de la porte, cette garniture (12) étant munie d'une ouverture latérale horizontale (23) ouverte sur un côté, et de deux orifices d'extrémité, supérieur et inférieur, une plaque au moyen d'une carcasse (1) qui est situé sur le côté interne ou frontal de la garniture avec un orifice par lequel passe l'arbre de la poignée (2) et deux autres trous d'extrémité qui coïncident avec ceux de la garniture (12), ainsi qu'une projection (32) vers l'intérieur du bord de la porte (18), dans lequel cette carcasse (1) est située sur une cavité (30) sur la surface du bord (17) et est fixée à cette cavité (30) par des chevilles (31) sur cette cavité, un pignon denté (10) fixé à l'arbre de la poignée (2) par une bague supérieure (7), qui fixe cette bague grâce à la tête d'une partie axiale (28) qui vient se loger dans une encoche borgne axiale dans cet arbre, la bague (7) étant à son tour logée dans une portion plate d'un support fixe (6) avec une forme non uniforme, dont l'autre portion est fixée à l'un des trous d'extrémité dans la carcasse (1) et fixé à la garniture (22) au moyen d'un boulon et d'un écrou soudable (14), le pignon (10) tournant avec l'arbre de la poignée et étant connecté avec un ressort de torsion (3) étant relié à la base du mécanisme par un autre support avec un trou percé (33) par laquelle une came ou respectivement une projection (32) de la carcasse (1) traverse et est fixée à l'autre extrémité de cette carcasse (1) et à l'autre extrémité de la garniture (12) au moyen d'un boulon et d'un écrou enrobé (13) au-dessus de ce support et sur la projection (32) est installée un came ou respectivement un pignon denté (9) qui reçoit en haut de la base plate d'une partie en forme de papillon (4) qui est disposée au-dessous d'une bague (8) et fermée par la tête d'une pièce de fermeture (29) logé dans une encoche axiale dans la projection (32) dans laquelle la came ou le pignon tourne lorsque la came ou respectivement le la poignée tourne et entraîne la rotation de la forme en papillon (4) et par des projections verticales (23, 24, 25) qui dépassent de l'intérieur et terminent les extrémités en forme de U qui dépassent des deux supports (5, 6) avec une projection (23, 25) sur chacun d'entre eux et deux projections (24) sur le papillon, qui sont alignés sur l'extrémité supérieure et également séparés du centre sur lequel cette forme de papillon (4) tourne, dans lequel dans la position de repos de ce mécanisme, chaque projection (24) des supports est placée dans une position parallèle à chacune des projections sur la forme en papillon, dans laquelle, dans les conditions de montage les extrémités des gaines des câbles qui viennent des verrous (20) sont fixés à chacune des projections sur les supports (5, 6), alors que les extrémités des câbles sont fixées aux projections (24) de la pièce en forme de papillon.

2. Système d'ouverture interne pour les portières arrières des véhicules, conformément à la revendication 1, caractérisé par le fait que la fixation de la garniture (12) et de la carcasse (1) à l'une des extrémités peut être facilement réalisée au moyen d'une cheville de la garniture qui est logée dans une encoche de la carcasse.

3. Système d'orifice interne pour les portes arrières des véhicules, conformément à la revendication 1, caractérisé par le fait que le déplacement angulaire de la poignée (2) est de préférence de 28 degrés.

Drawing