(51) Int Cl.: E05F 3/22 ( ) E05F 3/10 ( ) E05F 3/20 ( ) E05D 7/04 ( ) E05D 5/02 ( ) E05D 7/081 (2006.

Transcription

1 (19) TEPZZ B_T (11) EP B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention of the grant of the patent: Bulletin 2017/12 (21) Application number: (51) Int Cl.: E05F 3/22 ( ) E05F 3/10 ( ) E05F 3/20 ( ) E05D 7/04 ( ) E05D 5/02 ( ) E05D 7/081 ( ) (22) Date of filing: (54) Auto-return apparatus for glass door Selbstrückstellungsvorrichtung für eine Glastür Appareil à retour automatique pour porte en verre (84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: TW (43) Date of publication of application: Bulletin 2014/02 (73) Proprietor: Leado Door Controls Ltd. Changhua County 510 (TW) (72) Inventor: King-Sung, Yu 510 CHANGHUA COUNTY (TW) (74) Representative: Becker Kurig Straus Patentanwälte Bavariastrasse München (DE) (56) References cited: EP-A AU-A DE-A US-A US-B EP B1 Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. Notice of opposition shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). Printed by Jouve, PARIS (FR)

2 1 EP B1 2 Description BACKGROUND OF THE INVENTION 1. Technical Field [0001] The present invention is related to an auto-return apparatus for glass door, in particular, to an autoreturn apparatus provided for the ease of adjustment of misalignment thereof. 2. Description of Related Art [0002] As a common practice of installing glass doors, the door piece of the glass door and the door frame are drilled respectively to form a number of hinge holes and the hinge is then fastened to the hinge holes with screws such that the door piece can be pivotally turned relative to the door frame by the hinge. However, since tolerance errors usually occurs during the drilling of the holes, if the hinge is still forced to be fastened on the holes under such condition, the door piece of the glass door would not be aligned with the door frame and misalignment therefore occurs as a result. In order to solve the tolerance errors of the drilling, installers would commonly grind the hinge holes to be of a greater hole diameter prior to the installing of the hinge; nevertheless, the grinding of the holes is likely to cause cracks on the glass or the grinded hinge holes are likely to be of a smaller distance from each other and causing fractures on the glass between the two holes. [0003] A conventional glass door hinge is for example disclosed in the European Patent Application No. EP A1 comprises a box-like body and a pin reciprocally rotatably coupled to rotate around a first axis between the open door position and the closed door position, wherein closing means are provided to automatically return the door, as well as a braking means acting thereon to counteract their action. [0004] In view of the above, the installation of glass door utilizing traditional hinges can be troublesome and the tolerance errors occurred after the completion of the installation can still cause the doors to be unable to close properly; therefore, traditional hinges are not suitable for glass doors. BRIEF SUMMARY OF THE INVENTION [0005] A main objective of the present invention is to provide an auto-return apparatus for a glass door to facilitate the installation of the glass door and to promptly adjust the misalignment thereof. [0006] In order to achieve the abovementioned objective, an auto-return apparatus for a glass door comprises the features of present claim 1, wherein advantageous embodiments are disclosed in the dependent claims. An auto-return apparatus for a glass door comprises a clamping base, a damper and a misalignment adjuster The clamping base has a base and a securing axle. The base is provided for clamping and securing the glass door and comprises an oil reservoir for reserving a hydraulic oil and an axial hole perpendicularly and fluidly connected to said oil reservoir; said securing axle is axially attached to the axial hole of the base and comprises an axial shaft and an eccentric cam attached to the axial shaft; said axial shaft comprises a mounting end extended outward from the axial hole. The damper is received within the oil reservoir and abuts said eccentric cam of said securing axle such that the damper is pushed by said eccentric cam to compress said hydraulic oil to generate a resisting force for door opening and closing. The misalignment adjuster comprises a moving plate and at least one securing means; said moving plate comprises at least one long slot and a mounting slot, said long slot provided for said securing means to pass therethrough and to secure thereon, said mounting slot is provided for said mounting end of said axial shaft of said securing axle to secure thereon such that said moving plate moves together with said clamping base along an extending direction of said long slot and relative to said securing means and such that the problem associated with the left/right misalignment of the glass door is overcome. [0007] In the auto-return apparatus of the present invention, the moving plate comprises an adjustable screw hole connected to the mounting slot; said adjustable screw hole extends perpendicularly to the extending direction of the long slot and is provided for an adjustable screw to be fastened therein. An end of said adjustable screw penetrates into the mounting slot and abuts the mounting end of the axial shaft of the securing axle such that the front/rear misalignment of the glass door can be adjusted by pushing or moving the clamping base thereof. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS [0008] FIG. 1 is a perspective view of a preferred embodiment of the present invention installed onto a glass door; and FIGs 2 are 3 show partial perspective views of a preferred embodiment of the present invention; FIG. 4 is a cross sectional view of a preferred embodiment of the present invention provided with the clamping base and the damper; FIGs 5A to 5D are partial cross sectional views of a preferred embodiment of the present invention, showing the process of the piston compressing the hydraulic oil; FIGs 6A to 6C are bottom views of a preferred embodiment of the present invention provided with the misalignment adjuster, showing the conditions of correcting the left/right misalignment of the glass door. 2

3 3 EP B1 4 FIG. 7 is a bottom view of a preferred embodiment of the present invention provided with the misalignment adjuster, showing the conditions of correcting the front/rear misalignment of the glass door. DETAILED DESCRIPTION OF THE INVENTION [0009] A preferred embedment of the present invention is provided in the following accompanied with the drawings to describe and illustrate the structure, technical features and effects of the present invention detailed as the following. [0010] Referring now to FIGs 1 to 3. A preferred embodiment of the present invention provides an auto-return apparatus 10 comprising a clamping base 20, a damper 30 and a misalignment adjuster 40. [0011] The clamping base 20 comprises a base 50 and a securing axle 60 as shown in FIGs 2 and 3; wherein: [0012] A bottom edge of the base 50 comprises a clamping slot 51 provided for the attachment of a top edge of the glass door 12 thereon and a clamping strip 52 can be provided or received within the clamping slot 51 based on desired needs to prevent direct contact with the glass door 12. Two sides of the base 50 are respectively formed of a plurality of screw holes 53 connected to the clamping slot 51. By fastening a plurality of topabutting screws 54 into the plurality of screw holes 53 respectively, the plurality of top-abutting screws 54 abut the two clamping strips 52 to clamp the top edge of the glass door 12 tightly. Furthermore, as shown in FIG. 1, the two sides of the base 50 can be installed with a decorative plate 55 based on desired needs to provide decoration to the outer appearance of the base 50. Also as shown in FIG. 4, an internal of the base 50 is provided with an oil reservoir 56. By attaching two end caps 57 to the two ends of the base 50, the oil reservoir 56 is sealed. The oil reservoir 56 is divided into a space 562, a oil conduit 564 and two valve holes 566 spaced apart from each other. The oil conduit 564 is fluidly connected to the space 562 and each one of the valve holes 566 is fluidly connected to the space 562 and the oil conduit 564 such that an adjustable valve 58a, 58b can be attached thereon. Additionally, the top surface of the base 50 is provided with an axial hole 59 perpendicularly and the axial hole 59 is fluidly connected to the space 562 of the oil reservoir 56. [0013] The securing axle 60 is pivotally attached to the axial hole 59 of the base 50 via two bearings 62 and comprises an axial shaft 64 and an eccentric cam 66 attached to the axial shaft 64; wherein the axial shaft 64 comprises a mounting end 642 extend from the axial hole 59. [0014] The damper 30 is received within the oil reservoir 56 of the clamping base 20 and comprises a piston 32, a securing block 34 and a spring element 36. As shown in FIG. 3, the piston 32 comprises a long hole 322 provided for the axial shaft 64 of the securing axle 60 to pass therethrough, and each one of the two ends of the piston 32 respectively comprises an oil hole 324 to allow the hydraulic oil to pass through. The securing block 34 is secured to the piston 32 via an insertion 38 and abuts the eccentric cam 66 of the securing axle 60 such that as the securing block 34 abuts and is pushed by the eccentric cam 66 of the securing axle 60, the piston 32 is being moved altogether to compress the hydraulic oil to generate the resisting force for door opening and closing. Two ends of the spring element 36 abut the end surface of the piston 32 and one of the end caps 57 of the clamping base 20 respectively in order to provide the return force. [0015] The misalignment adjuster 40 comprises a moving plate 41 and two securing means 42. As shown in FIGs 2 and 6A, each one of the left and right ends of the moving plate 41 respectively comprises a long slot 411, and a wall of the long slot 411 comprises a stepped portion 412. In this embodiment, each one of the securing means 42 comprises a securing screw 43 and a screw cap 44. The securing screw 43 comprises a head portion 432 and a threaded portion 434 extended form the head portion 432, and the screw cap 44 is buried into a ceiling. During the securing of the moving plate 41, the threaded portion 434 of the securing screw 43 passes through the long slot 411 of the moving plate 41 and is then fastened into the screw cap 44 gradually. Once the securing screw 43 is fastened, the head portion 432 of the securing screw 43 abuts the stepped portion 412 of the long slot 411, and the screw cap 44 then expands radially, which causes the moving plate 41 to be secured onto the ceiling and allows the moving plate 41 to move along an extending direction of the long slot 411 and relative to the securing means 42 upon an exertion of an external force. Furthermore, a mounting slot 413 and an adjustable screw hole 414 are provided between the moving plates 41. The extending direction of the mounting slot 413 is perpendicular to the extending direction of the long slot 411 and is formed with an opening 415 on one end thereof on a side of the moving plate 41 and another end thereof connecting to the adjustable screw hole 414. The opening 415 is covered by a blocking plate 45 fastened to the moving plate 41. The adjustable screw hole 414 is axially perpendicular to the extending direction of the long slot 411 and is provided for an adjustable screw 46 to fasten thereto. An end of the adjustable screw 46 penetrates into the mounting slot 413. During its assembly with the clamping base 20, the mounting end 642 of the axial shaft 64 of the securing axle 60 is mounted into the mounting slot 413 of the moving plate 41 and abuts the end of the adjustable screw 46 such that the clamping base 20 is able to pivot about the securing axle 60 in response to the opening and closing of the glass door 12. In addition, each one of the two ends of the moving plate 41 can be further provided with a protective cover 47 respectively to cover the two securing means 42 as means of protection thereof. [0016] The above recites the detailed structure of the auto-return apparatus 10 of the present invention. In the 3

4 5 EP B1 6 following, the modes of operation and features are further described and illustrated. [0017] As the glass door 12 is pushed open, the clamping base 20 pivots around the rotation center of the securing axle 60 along with the glass door 12, during which the piston 32 is moved in the space 562 of the oil reservoir 56 due to the push of the eccentric cam 66 of the securing axle 60. The hydraulic oil is then being compressed by the piston 32 to flow from the oil hole 324 on the right end of the piston 32 to the left end thereof as shown in FIGs 5A to 5B. [0018] When the closing of the glass door 12 begins, the piston 32 compresses the hydraulic oil due to the push of the spring element 36, forcing the hydraulic oil to flow through the oil conduit 564 and the adjustable valve 58a and then to the space 562 via the valve hole 566 as well as to the right end of the piston 32 via the oil hole 324 of the piston 32, as shown in FIG. 5C. As the closing of the glass door 12 continues, the piston 32 blocks the entrance of the oil conduit 564, forcing the hydraulic oil to flow from the valve hole 566 to the adjustable valve 58b and then to the space 562 via the oil conduit 564 as well as to the right end of the piston 32 via the oil hole 324 of the piston 32 until the glass door 12 is completely closed, as shown in FIG. 5D. If the speed of closing of the glass door 12 at different stages is to be adjusted, one can achieve so by adjusting the adjustable vavles 58a, 58b respectively for different amounts of oil. [0019] On the other hand, if left/right misalignment occurs during the closing of the glass door 12, one can take off the protective cap 47 and force the moving plate 41 to move left and right along the direction of the long slot 411, as shown in FIGs 6A to 6C. As the clamping base 20 is secured onto and together with the moving plate 41 via the mounting end 642 of the axial shaft 64 of the securing shaft 60, the clamping base 20 is able to move together with the glass door 12 following the left and right movement of the moving plate 41 until the left/right misalignment of the glass door 12 is corrected or fixed. Furthermore, if front/rear misalignment occurs during the closing of the glass door 12, one can turn the adjustable screw 46 in order to have the end of the adjustable screw 46 abutting the mounting end 642 of the axial shaft 64 of the securing axle 60 such that the clamping base 20 is being moved altogether to correct the front/rear misalignment of the glass door 12, as shown in FIG. 7. [0020] In view of the above, the auto-return apparatus 10 of the present invention can be secured onto the ceiling with only two securing means 42 during its installation, making the installation easy and simple; and it can also utilize the oil resisting force between the damper 30 and the hydraulic oil to act as a force buffer to the opening and closing of the door. In addition, the auto-return apparatus 10 of the present invention allows the glass door 12 to be further adjusted after the installation thereof such that the misalignment of the glass door 12 can be effectively resolved and corrected, achieving the objectives of the present invention Claims 1. An auto-return apparatus (10) for a glass door (12) comprising: a clamping base (20), having a base (50) and a securing axle (60); said base (50) provided for clamping and securing said glass door (12) and comprising an oil reservoir (56) for reserving a hydraulic oil and an axial hole (59) perpendicularly and fluidly connected to said oil reservoir (56); said securing axle (60) axially attached to said axial hole (59) of said base (50) and comprising an axial shaft (64) and an eccentric cam (66) attached to said axial shaft (64); said axial shaft (64) comprising a mounting end (642) extended outward from said axial hole (59); a damper (30), received within said oil reservoir (56) and abutting said eccentric cam (66) of said securing axle (60) such that the damper (30) is pushed by said eccentric cam (66) to compress said hydraulic oil to generate a resisting force for door opening and closing; the auto-return apparatus (10) being characterized in that it further comprises a misalignment adjuster (40), having a moving plate (41) to be secured onto the ceiling by at least one securing means (42); said moving plate (41) comprising at least one long slot (411) and a mounting slot (413), said long slot (411) provided for said securing means (42) to pass therethrough and to secure thereon, said mounting slot (413) provided for said mounting end (642) of said axial shaft (64) of said securing axle (60) to secure thereon such that said moving plate (41) moves together with said clamping base (20) along an extending direction of said long slot (411) and relative to said securing means (42) and in that said moving plate (41) comprises an adjustable screw hole (414) connected to said mounting slot (413). said adjustable screw hole (414) extends perpendicularly to said extending direction of said long slot (411), said misalignment adjuster (40) further comprises an adjustable screw (46) fastened into said adjustable screw hole (414) and penetrated into said mounting slot (413) with an end thereof to abut said mounting end (642) of said axial shaft (64) of said securing axle (60). 2. The auto-return apparatus (10) for a glass door (12) of claim 1, being characterized in that said at least one long slot (411) of said moving plate (41) comprises two long slots (411) arranged on two opposing sides of said mounting slot (413); said at least one securing means (42) comprises two securing means (42) and are secured in one of said long slots (411) 4

5 7 EP B1 8 respectively. 3. The auto-return apparatus (10) for a glass door (12) of claim 2, being characterized in that said misalignment adjuster (40) further comprises two protective caps (47), said two protective caps (47) are mounted on said two ends of said moving plate (41), covering said two securing means (42). 4. The auto-return apparatus (10) for a glass door (12) of claim 1 or 2, being characterized in that walls of said long slot (411) comprises a stepped portion (412), said securing means (42) comprises a screw (43) and a screw cap (44). said screw (43) comprises a head portion (432) and a threaded portion (434), said head portion (432) abuts said stepped portion (412) of said long slot (411), said threaded portion (434) extends from said head portion (432) to pass through said long slot (411) and fastened into said screw cap (44). 5. The auto-return apparatus (10) for a glass door (12) of claim 1, being characterized in that said mounting slot (413) is of an extending direction perpendicular to said extending direction of said long slot (411), and one end of said mounting slot (413) comprises an opening (415) and another end thereof connected to said adjustable screw hole (414); said misalignment adjuster (40) further comprises a blocking plate (45), said blocking plate (45) is secured to one side of said moving plate (41) and covering said opening (415) of said mounting slot (413). 6. The auto-return apparatus (10) for a glass door (12) of claim 1, being characterized in that said damper (30) comprises a piston (32), a securing block (34) and a spring member (36); said piston (32) comprises a long hole (322) provided for said axial shaft (64) of said securing axle (60) to pass therethrough; said securing block (34) is attached to said piston (32) and abuts the eccentric cam (66) of the securing axle (60); one end of said spring member (36) abuts said piston (32). Patentansprüche 1. Selbstrückstellungsvorrichtung (10) für eine Glastür (12), umfassend: Eine Klemmbasis (20) mit einer Basis (50) und einer Sicherungsachse (60), wobei die Basis (50) für ein Klemmen und Sichern der Glastür (12) bereitgestellt ist und ein Ölreservoir (56) zum Vorhalten eines Hydrauliköls umfasst, sowie ein Axialloch (59), das rechtwinkelig mit dem Ölreservoir (56) verbunden ist und damit in fluidem Kontakt steht, wobei die Sicherungsachse (60) axial an dem Axialloch (59) der Basis (50) angeordnet ist und eine Axialwelle (64) sowie eine Exzenternocke (66) umfasst, die an der Axialwelle (64) angeordnet ist, wobei die Axialwelle (64) ein Befestigungsende (642) umfasst, das sich aus dem Axialloch (59) nach außen erstreckt, einen Dämpfer (30), der in dem Ölreservoir (56) aufgenommen vorliegt und gegen die Exzenternocke (66) der Sicherungsachse (60) stößt, so dass der Dämpfer (30) durch die Exzenternocke (66) gedrückt wird, um das Hydrauliköl zu komprimieren, um eine Widerstandskraft für ein Öffnen und Schließen der Tür zu erzeugen, wobei die Selbstrückstellungsvorrichtung (10) dadurch gekennzeichnet ist, dass sie ferner umfasst eine Justiereinrichtung für Falschausrichtungen (40), die eine bewegliche Platte (41) aufweist, die an der Decke mittels wenigstens einem Sicherungsmittel (42) befestigt wird, wobei die bewegliche Platte (41) wenigstens einen Längsschlitz (411) und einen Befestigungsschlitz (413) umfasst, wobei der Längsschlitz (411) bereitgestellt ist, damit das Sicherungsmittel (42) hindurch passt und daran gesichert werden kann, wobei der Befestigungsschlitz (413) für das Befestigungsende (642) der Axialwelle (64) der Sicherungsachse (60) bereitgestellt ist, damit es darin befestigt werden kann, so dass sich die bewegliche Platte (41) zusammen mit der Klemmbasis (20) entlang einer Erstreckungsrichtung des Längsschlitzes (411) und relativ zu dem Sicherungsmittel (42) bewegt, und dadurch, dass die bewegliche Platte (41) ein einstellbares Schraubloch (414) umfasst, das mit dem Befestigungsschlitz (413) verbunden ist, wobei sich das einstellbare Schraubloch (414) rechtwinkelig zu der Erstreckungsrichtung des Längsschlitzes (411) erstreckt, wobei die Justiereinrichtung für Falschausrichtungen (40) ferner eine einstellbare Schraube (46) umfasst, die in dem einstellbaren Schraubloch (414) befestigt vorliegt und mit einem Ende davon in den Befestigungsschlitz (413) ragt, um gegen das Befestigungsende (642) der Axialwelle (64) der Sicherungsachse (60) zu stoßen. 2. Selbstrückstellungsvorrichtung (10) für eine Glastür (12) nach Anspruch 1, dadurch gekennzeichnet, dass der wenigstens eine Längsschlitzes (411) der beweglichen Platte (41) zwei Längsschlitze (411) umfasst, die an zwei gegenständigen Seiten des Befestigungsschlitzes (413) angeordnet sind, wobei das wenigstens eine Sicherungsmittel (42) zwei Sicherungsmittel (42) umfasst, die jeweils in einem der Längsschlitze (411) befestigt sind. 5

6 9 EP B Selbstrückstellungsvorrichtung (10) für eine Glastür (12) nach Anspruch 2, dadurch gekennzeichnet, dass die Justiereinrichtung für Falschausrichtungen (40) ferner zwei vorstehende Kappen (47) umfasst, wobei die zwei vorstehenden Kappen (47) an den zwei Enden der beweglichen Platte (41) angeordnet sind und die zwei Sicherungsmittel (42) abdecken. 4. Selbstrückstellungsvorrichtung (10) für eine Glastür (12) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Wandungen des Längsschlitzes (411) einen gestuften Teil (412) umfassen, wobei das Sicherungsmittel (42) eine Schraube (43) und eine Schraubkappe (44) umfasst, wobei die Schraube (43) einen Kopfbereich (432) und einen Gewindebereich (434) umfasst, wobei der Kopfbereich (432) gegen den gestuften Teil (412) des Längsschlitzes (411) stößt, wobei sich der Gewindebereich (434) von dem Kopfbereich (432) erstreckt, um durch den Längsschlitz (411) zu passen und um in der Schraubkappe (44) befestigt zu werden. 5. Selbstrückstellungsvorrichtung (10) für eine Glastür (12) nach Anspruch 1, dadurch gekennzeichnet, dass sich der Befestigungsschlitz (413) in einer Richtung rechtwinkelig zu der Erstreckungsrichtung des Längsschlitzes (411) erstreckt, und dass ein Ende des Befestigungsschlitzes (413) eine Öffnung (415) umfasst und ein anderes Ende davon mit dem einstellbaren Schraubloch (414) verbunden ist, wobei die Justiereinrichtung für Falschausrichtungen (40) ferner eine Blockierplatte (45) umfasst, wobei die Blockierplatte (45) an einer Seite der beweglichen Platte befestigt ist und die Öffnung (415) des Befestigungsschlitzes (413) abdeckt. 6. Selbstrückstellungsvorrichtung (10) für eine Glastür (12) nach Anspruch 1, dadurch gekennzeichnet, dass der Dämpfer (30) einen Kolben (32), einen Sicherungsblock (34) und ein Federelement (36) umfasst, wobei der Kolben (32) ein Längsloch (322) umfasst, das für ein Durchpassen der Axialwelle (64) der Sicherungsachse (60) bereitgestellt ist, wobei der Sicherungsblock (34) an dem Kolben (32) angeordnet ist und gegen die Exzenternocke (66) der Sicherungsachse (60) stößt, wobei ein Ende des Federelements (36) gegen den Kolben (32) stößt. Revendications réserver une huile hydraulique et un trou axial (59) raccordé perpendiculairement et par fluide audit réservoir d huile (56) ; ledit axe de fixation (60) étant attaché axialement audit trou axial (59) de ladite base (50) et comprenant un arbre axial (64) et une came d excentrique (66) attachée audit arbre axial (64) ; ledit arbre axial (64) comprenant une extrémité de montage (642) s étendant vers l extérieur dudit trou axial (59) ; un amortisseur (30) réceptionné dans ledit réservoir d huile (56) et butant contre ladite came d excentrique (66) dudit axe de fixation (60) de manière à ce que l amortisseur (30) soit poussé par ladite came d excentrique (66) pour comprimer ladite huile hydraulique pour générer une force de résistance pour l ouverture et la fermeture de la porte ; l appareil à retour automatique (10) étant caractérisé en ce qu il comprend en outre : un ajusteur de mauvais alignement (40) ayant une plaque mobile (41) à fixer au plafond au moyen d au moins un moyen de fixation (42) ; ladite plaque mobile (41) comprenant au moins une fente longue (411) et une fente de montage (413), ladite fente longue (411) étant fournie pour que ledit moyen de fixation (42) passe à travers celle-ci et se fixe dessus, ladite fente de montage (413) étant fournie pour que ladite extrémité de montage (642) dudit arbre axial (64) dudit axe de fixation (60) soit fixée sur celle-ci de manière à ce que ladite plaque mobile (41) se déplace ensemble avec ladite base de serrage (20) le long d une direction d extension de ladite fente longue (411) et relativement audit moyen de fixation (42), et en ce que ladite plaque mobile (41) comprend un trou de vis ajustable (414) raccordé à ladite fente de montage (413), ledit trou de vis ajustable (414) s étendant perpendiculairement à ladite direction d extension de ladite fente longue (411), ledit ajusteur de mauvais alignement (40) comprenant en outre une vis ajustable (46) fixée dans ledit trou de vis ajustable (414) et en pénétration dans ladite fente de montage (413) avec une de ses extrémités pour buter contre ladite extrémité de montage (642) dudit arbre axial (64) dudit axe de fixation (60). 1. Appareil à retour automatique (10) pour une porte en verre (12) comprenant : une base de serrage (20) ayant une base (50) et un axe de fixation (60) ; ladite base (50) étant fournie pour serrer et fixer ladite porte en verre (12) et comprenant un réservoir d huile (56) pour Appareil à retour automatique (10) pour une porte en verre (12) selon la revendication 1, caractérisé en ce que ladite au moins une fente longe (411) de ladite plaque mobile (41) comprend deux fentes longues (411) disposées sur deux côté opposés de ladite fente de montage (413) ; ledit au moins un moyen de fixation (42) comprenant deux moyens de 6

7 11 EP B1 12 fixation (42) et étant fixés respectivement dans l une desdites fentes longues (411). 3. Appareil à retour automatique (10) pour une porte en verre (12) selon la revendication 2, caractérisé en ce que ledit ajusteur de mauvais alignement (40) comprend en outre deux capuchons protecteurs (47), lesdits deux capuchons protecteurs (47) étant montés sur lesdites deux extrémités de ladite plaque mobile (41) en recouvrant lesdits deux moyens de fixation (42) Appareil à retour automatique (10) pour une porte en verre (12) selon la revendication 1 ou 2, caractérisé en ce que les parois de ladite fente longue (411) comprennent une partie en gradins (412), ledit moyen de fixation (42) comprenant une vis (43) et un capuchon de vis (44), ladite vis (43) comprenant une partie de tête (432) et une partie filetée (434), ladite partie de tête (432) butant contre ladite partie en gradins (412) de ladite fente longue (411), ladite partie filetée (434) s étendant à partir de ladite partie de tête (432) pour passer à travers ladite fente longue (411) et être fixée dans ledit capuchon de vis (44) Appareil à retour automatique (10) pour une porte en verre (12) selon la revendication 1, caractérisé en ce que ladite fente de montage (413) est d une direction d extension perpendiculaire à ladite direction d extension de ladite fente longue (411), et une extrémité de ladite fente de montage (413) comprenant une ouverture (415) et une autre extrémité de celle-ci étant raccordée audit trou de vis ajustable (414) ; ledit ajusteur de mauvais alignement (40) comprenant en outre une plaque de blocage (45), ladite plaque de blocage (45) étant fixée à un côté de ladite plaque mobile (41) et recouvrant ladite ouverture (415) de ladite fente de montage (413). 6. Appareil à retour automatique (10) pour une porte en verre (12) selon la revendication 1, caractérisé en ce que ledit amortisseur (30) comprend un piston (32), un bloc de fixation (34) et un élément de ressort (36) ; ledit piston (32) comprenant un trou long (322) fourni pour que ledit arbre axial (64) dudit axe de fixation (60) passe à travers celui-ci ; ledit bloc de fixation (34) étant attaché audit piston (32) et butant contre la came d excentrique (66) de l axe de fixation (60) ; une extrémité dudit élément de ressort (36) butant contre ledit piston (32)

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16 REFERENCES CITED IN THE DESCRIPTION This list of references cited by the applicant is for the reader s convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard. Patent documents cited in the description EP A1 [0003] 16