EP4261375A1 - Sicherheitsscharnier für eine vertikale tür - Google Patents

Sicherheitsscharnier für eine vertikale tür Download PDF

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Publication number
EP4261375A1
EP4261375A1 EP22167750.3A EP22167750A EP4261375A1 EP 4261375 A1 EP4261375 A1 EP 4261375A1 EP 22167750 A EP22167750 A EP 22167750A EP 4261375 A1 EP4261375 A1 EP 4261375A1
Authority
EP
European Patent Office
Prior art keywords
crown gear
vertical
cam
profile
hollow member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22167750.3A
Other languages
English (en)
French (fr)
Inventor
Marian Cristian Sandu
Mihail BURLACU
Florin Drinceanu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Priority to EP22167750.3A priority Critical patent/EP4261375A1/de
Publication of EP4261375A1 publication Critical patent/EP4261375A1/de
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/10—Devices for preventing movement between relatively-movable hinge parts
    • E05D11/1028—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open
    • E05D11/1078—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open the maintaining means acting parallel to the pivot
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E05D5/0246—Parts for attachment, e.g. flaps for attachment to glass panels
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
    • E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/10—Devices for preventing movement between relatively-movable hinge parts
    • E05D11/1028—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open
    • E05D2011/1035—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open with circumferential and evenly distributed detents around the pivot-axis
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/214—Disengaging means
    • E05Y2201/216—Clutches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E05Y2201/24—Actuation thereof by automatically acting means using lost motion
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/41—Function thereof for closing
    • E05Y2201/412—Function thereof for closing for the final closing movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/422—Function thereof for opening
    • E05Y2201/424—Function thereof for opening for the final opening movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/638—Cams; Ramps
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/74—Specific positions
    • E05Y2800/748—Specific positions end
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators

Definitions

  • the invention refers to a safety hinge for a vertical door, in particular for a vertical door of a refrigerator cabinet.
  • Safety hinges for vertical doors are known in the art, such as the safety hinge disclosed in the European patent application no. 21197322.7 filed on 17.09.2021 and having the same applicant as that of the present invention.
  • the present invention aims to eliminate the afore-mentioned disadvantage, by providing an equally simple and inexpensive safety hinge, whose trouble-shooting can be performed swiftly by any person, because absolutely no technical skills are needed and no parts need to be replaced.
  • the safety hinge according to the invention comprises:
  • the cam is provided with a first central circular through hole
  • the first crown gear is provided with a second central circular through hole
  • the second crown gear is provided with:
  • the safety hinge further comprises:
  • the cam is partially housed within the hollow member and partially (namely its lower portion) protruding through the lower opening of the hollow member.
  • the cam follower is partially housed within the hollow member and partially (namely its lower portion) protruding through the lower opening of the hollow member such that the lower part of the cam follower freely abuts on the abutment body.
  • the first crown gear and the second crown gear are both totally housed within the hollow member.
  • the helical spring is totally housed within the hollow member, and has its upper extremity in contact with the cover and its lower extremity in contact with the annular seating.
  • the cam is rotatable about the pin in both clockwise and anti-clockwise directions.
  • the angle of rotation of the cam about the pin corresponding to movement of the safety hinge from the first resting position to the second resting position, is in the range 105 ⁇ 120 degrees, preferably 110 degrees.
  • Figure 1 shows an explosion view of the safety hinge according to the invention, that comprises a cam 1 provided with a first vertical cam profile c1 and a second vertical cam profile c2 that is symmetrical to the first vertical cam profile c1.
  • the cam 1 is also provided with a first central circular through hole h1.
  • the safety hinge further comprises a cam follower 2 provided with a first vertical cam follower profile f1 configured to work in conjunction with the first vertical cam profile c1, and a second vertical cam follower profile f2, that is symmetrical to the first vertical cam follower profile f1, configured to work in conjunction with the second vertical cam profile c2.
  • Said two cam follower profiles f1, f2 are not visible in figure 1 , but are visible in figure 2 .
  • the cam follower 2 is partially housed within a hollow member 4 that is fixable to a frame F.
  • screws may be used to fix the hollow member 4 to a door frame F.
  • the hollow member 4 is provided with an upper opening covered by a cover 5 and a lower opening through which the cam follower 2 protrudes.
  • the cover 5 is preferably removably fixed to the hollow member 4.
  • screws may be used to fix the cover 5 to the hollow member 4 (as shown in figure 2 ).
  • the cam 1 is fixed to an abutment body B fixable to a door D, said door D being configured to operate in conjunction with said frame F.
  • the cam 1 and the abutment body B may be fixed directly to the door D, or may be, as shown in figure 1 , be fixed to the door D by means of an auxiliary member A. Press-fitting may be used to fix the abutment body B to the door D or to the auxiliary member A, as well as of the auxiliary member A to the door D.
  • a vertical pin 7 has its lower end fixed to the abutment body B and passes through the first central circular through hole h1.
  • the cam 1 is rotatable about the pin 7 in both clockwise and anti-clockwise directions.
  • Figure 2 shows an exploded view of the upper elements of the safety hinge according to the invention, more precisely of those elements housed within the hollow member 4.
  • the interior of the hollow member 4 has a substantially cylindrical shape bounded respectively by said upper and lower openings, and is provided with a pair of diametrically opposed vertical grooves g1 along the entire height of the hollow member 4.
  • the cam follower 2 is fixed at its top to a first crown gear G1 having upwards oriented teeth.
  • the cam follower 2 may be integral with the first crown gear G1 (i.e. made in one piece) or may be welded or glued to the first crown gear G1.
  • the first crown gear G1 is provided with a second central circular through hole h2 and has freedom of rotation about its vertical central axis.
  • the hollow member 4 further houses a second crown gear G2 situated above and in contact with the first crown gear G1, and having downwards oriented teeth with a same pitch as the teeth of the first crown gear G1.
  • the second crown gear G2 is provided with a third central circular through hole h3, with an annular seating 6 fixed concentrically with and inside said third central circular through hole h3, and with a pair of diametrically opposed guides g2 situated on an outer lateral surface thereof.
  • Each guide g2 of the second crown gear G2 is slidable along a respective groove g1 of the hollow member 4.
  • the second crown gear G2 movement is restricted exclusively to the translation along its vertical central axis that coincides with the vertical central axis of the first crown gear G1.
  • the hollow member 4 further houses an elastic element, preferably a helical spring 3, configured to exert a vertical compression force on the second crown gear G2 and thereby ensuring a permanent contact between the teeth of the second crown gear G2 and the teeth of the first crown gear G1.
  • the helical spring 3 has its upper extremity in contact with the cover 5 and its lower extremity in contact with the annular seating 6.
  • Each tooth of the first and second crown gears G1, G2 has an identical apex angle in the range 100 - 130 degrees and has a same height in the range of 2 ⁇ 3.5 mm.
  • the pin 7 depicted in figure 1 passes through the first h1, second h2 and third h3 central circular through holes, as well as through several coils of the helical spring 3.
  • Figure 3 shows an axonometrical view of the safety hinge according to the invention, in a first resting position corresponding to a closed door position.
  • Figures 4a and 4b each show a partial section view of the safety hinge according to the invention, in a first resting position (corresponding to the one of figure 3 ) corresponding to a closed door position.
  • first crown gear G1 is in mesh with the second crown gear G2
  • the cam 1 is not in contact with the cam follower 2 (namely the first vertical cam profile c1 is not in contact with the first vertical cam follower profile f1), and the spring 3 is minimally compressed.
  • Figure 5 shows a partial section view of the safety hinge according to the invention, corresponding to a partially open door position, wherein the position of the two crown gears G1 and G2 is identical to the one form figures 4a and 4b (i.e. in mesh), while only the cam 1 together with the first crown gear G1 have rotated clockwise about the pin 7, such that the first vertical cam profile c1 just comes into contact with the first vertical cam follower profile f1 (i.e. the first vertical cam profile c1 exerts substantially no pressure on the first vertical cam follower profile f1).
  • the spring 3 is minimally compressed.
  • Figures 6a and 6b each show a partial section view of the safety hinge according to the invention, corresponding to a different (in respect to figure 5 ) partially open door position, wherein the cam 1 together with the first crown gear G1 have further rotated clockwise and the two crown gears G1 and G2 make contact only at the apex of their respective corresponding teeth.
  • the first vertical cam profile c1 is in contact with and exerts pressure on the first vertical cam follower profile f1.
  • the spring 3 is maximally compressed.
  • Figures 7a and 7b each show a partial section view of the safety hinge according to the invention, in a second resting position corresponding to a maximally open door position, wherein the cam 1 together with the first crown gear G1 have even further rotated clockwise and the first crown gear G1 is in mesh with the second crown gear G2 but the teeth of the first crown gear G1 are offset with one pitch in respect to the teeth of the second crown gear G2 in comparison to the first resting position; the first vertical cam profile c1 is in contact with but exerts substantially no pressure on the first vertical cam follower profile f1.
  • the spring 3 is minimally compressed.
  • the cam 1 together with the first crown gear G1 rotate clockwise about the pin 7 until the profiles c1, f1 just come into contact, as shown in figure 5 .
  • the cam follower 2, the second crown gear G2 and the spring 3 do not change their positions in respect to those corresponding to the closed door position.
  • the further rotation of the cam 1 will determine the cam follower 2 and implicitly the first crown gear G1 to rotate clockwise.
  • the teeth of the first crown gear G1 will move relative to the teeth of the second crown gear G2, thus pushing upwards the second crown gear G2 (the teeth of the second crown gear G2 will move upwards on the left flanks of the respective corresponding teeth of the first crown gear G1). Consequently, the user will feel an even greater resistance from the door, signaling him that he should stop opening it.
  • the feature that the second crown gear G2 can only translate vertically is essential to obtain said door resistance feeling for the user.
  • the teeth of the first crown gear G1 are offset with one pitch in respect to the teeth of the second crown gear G2, in comparison to the first resting position.
  • the above succession of sensory warnings should eventually determine the user to be aware of the abnormal situation (risking to damage the hinge) and stop further opening the door.
  • An essential feature of the invention is the geometry (namely apex angle and height) of the crown gears G1, G2 teeth. If said geometry is out of the specified ranges, the safety hinge either cannot operate at all (because a more acute tooth apex angle together with a higher tooth height make impossible the translation of the second crown gear G2), or operates ineffectively (because a more obtuse tooth apex angle together with a lower tooth height do not provide notable sensory warnings to the user).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hinges (AREA)
EP22167750.3A 2022-04-12 2022-04-12 Sicherheitsscharnier für eine vertikale tür Pending EP4261375A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22167750.3A EP4261375A1 (de) 2022-04-12 2022-04-12 Sicherheitsscharnier für eine vertikale tür

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22167750.3A EP4261375A1 (de) 2022-04-12 2022-04-12 Sicherheitsscharnier für eine vertikale tür

Publications (1)

Publication Number Publication Date
EP4261375A1 true EP4261375A1 (de) 2023-10-18

Family

ID=81307556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22167750.3A Pending EP4261375A1 (de) 2022-04-12 2022-04-12 Sicherheitsscharnier für eine vertikale tür

Country Status (1)

Country Link
EP (1) EP4261375A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200409955Y1 (ko) * 2005-12-06 2006-03-03 주식회사 포밍 샤워부스 문
WO2010007599A1 (en) * 2008-07-18 2010-01-21 Liexco S.A. Door construction with self-closing pivot hinges integrated into door panel
WO2012029720A1 (ja) * 2010-09-03 2012-03-08 株式会社ニフコ 開閉体用のヒンジ装置
US20140259532A1 (en) * 2013-03-15 2014-09-18 Matthew David Millard Locking hinge and clamping device
EP2789944A2 (de) * 2013-04-12 2014-10-15 Samsung Electronics Co., Ltd. Kühlschrank
CN109838163A (zh) * 2017-11-24 2019-06-04 蔡雨霖 复位铰链改良

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200409955Y1 (ko) * 2005-12-06 2006-03-03 주식회사 포밍 샤워부스 문
WO2010007599A1 (en) * 2008-07-18 2010-01-21 Liexco S.A. Door construction with self-closing pivot hinges integrated into door panel
WO2012029720A1 (ja) * 2010-09-03 2012-03-08 株式会社ニフコ 開閉体用のヒンジ装置
US20140259532A1 (en) * 2013-03-15 2014-09-18 Matthew David Millard Locking hinge and clamping device
EP2789944A2 (de) * 2013-04-12 2014-10-15 Samsung Electronics Co., Ltd. Kühlschrank
CN109838163A (zh) * 2017-11-24 2019-06-04 蔡雨霖 复位铰链改良

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