EP2574869A1 - Scharniereinheit für Kühlschranktüren - Google Patents

Scharniereinheit für Kühlschranktüren Download PDF

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Publication number
EP2574869A1
EP2574869A1 EP12177557A EP12177557A EP2574869A1 EP 2574869 A1 EP2574869 A1 EP 2574869A1 EP 12177557 A EP12177557 A EP 12177557A EP 12177557 A EP12177557 A EP 12177557A EP 2574869 A1 EP2574869 A1 EP 2574869A1
Authority
EP
European Patent Office
Prior art keywords
support element
panel
closing
torsion spring
door
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.)
Withdrawn
Application number
EP12177557A
Other languages
English (en)
French (fr)
Inventor
Alberto Guiducci
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.)
Cisaplast SpA
Original Assignee
Cisaplast SpA
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 Cisaplast SpA filed Critical Cisaplast SpA
Publication of EP2574869A1 publication Critical patent/EP2574869A1/de
Withdrawn legal-status Critical Current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
    • E05D11/1014—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in only one position, e.g. closed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • 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
    • E05D11/105—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 perpendicularly to the pivot axis
    • E05D11/1064—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 perpendicularly to the pivot axis with a coil spring perpendicular to the pivot axis
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/123—Mechanisms in the shape of hinges or pivots, operated by springs with a torsion bar
    • 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
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets
    • E05Y2900/202—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets for display cabinets, e.g. for refrigerated cabinets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/024—Door hinges

Definitions

  • the present invention regards a hinge unit for refrigerator cabinet doors. More in particular, the invention refers to a hinge unit for refrigerator cabinet doors intended to be positioned within sales points for food products or the like, for preserving and displaying such products.
  • refrigerator cabinets generally comprise a parallelepiped outer body, which is adapted to delimit a refrigerated compartment for receiving the products to be preserved therein.
  • the refrigerated compartment is made accessible through a front access gap obtained on a lateral side of the outer body, which is closed by a door which can be partly or entirely transparent, so as to allow the display of the products contained therein.
  • the door of a refrigerator cabinet can be provided with a door leaf or alternatively slidable.
  • a door provided with a door leaf comprises a fixed framework adapted to delimit the access gap of the refrigerator cabinet and one or more panels adapted to close said access gap, which are hinged to the framework, so as to open the access gap rotating like a door leaf.
  • a need of such refrigerator cabinets is to increase the transparent area of the door, so as to improve the vision of the products contained therein and expand the display thereof.
  • An object of the present invention is to overcome the aforementioned drawbacks of the prior art, through a simple, rational and inexpensive solution.
  • the invention particularly, provides a hinge unit for refrigerator cabinet doors comprising:
  • the hinging axis is arranged at at least one edge of the second support element.
  • the rotation of the second support element with respect to the first substantially does not alter the lateral overall dimension of the hinge unit allowing having a door provided with a door leaf with small manoeuvring spaces between the panel and the framework of the refrigerator cabinet with ensuing greater transparent surface of the refrigerator cabinet in its entirety, as well as allow eliminating the risk of crushing between the movable parts of the door.
  • the hinge unit furthermore, comprises elastic return means interposed between said first and second support element for the return from the opening position to the closure position.
  • the door is automatically brought to the closed position guaranteeing a greater efficiency and safety of the refrigerator cabinet.
  • the return means comprise a torsion spring whose first end is rotatably associated to the second support element and, for example, it is driven in rotation by the first support element and whose second end is associated rotatably integral with the second support element.
  • the first end of the torsion spring is rotatably associated to the second support element in decentred position with respect to the hinging axis.
  • the hinge unit comprises transformation means of the rotary motion of the second support element with respect to the first support element in rotary motion of the first end with respect to the second end.
  • the motion transformation means have a transmission ratio different from 1.
  • the transformation means comprise at least one meshing portion fixed to the first support element coaxially to the hinging axis and adapted to mesh a toothed wheel, rotatably associated to the second support element and comprising a seat for housing the first end of the torsion spring, said first end and said housing seat being configured so as to obtain a prismatic coupling.
  • the torsion spring can be easily installed within the panel moveable of the door, without interfering with the profiles that make the frame of the panel.
  • the hinge unit comprises locking means adapted to removably lock therebetween the first and the second support element in the open position.
  • the door can be provided easily maintained in open position during the operations of filling the refrigerator cabinet, by the personnel designated to operate at the sales point.
  • the locking means comprise two snap-coupling elements respectively associated to the first support element and to the second support element, including a lock bolt and a retention seat adapted to provide a mutual automatic coupling following a mutual rotation between the first and the second support element.
  • the refrigerator cabinet 10 illustrated in figure 1 comprises an outer parallelepiped-shaped body 11, which is adapted to delimit a refrigerated compartment (not visible) for receiving the products to be preserved therewithin.
  • Said refrigerated compartment is made accessible from outside through an access gap 12, which is obtained at the front part on a vertical side of the outer body 11.
  • Said access gap 12 is closed by a door which is indicated in its entirety with 20.
  • the door 20 comprises a fixed framework 21 adapted to delimit the access gap 12, which has a rectangular shape defined by two pairs of parallel profiles, including a pair of vertical profiles, left 22 and right 23 respectively, and a pair of horizontal profiles, upper 24 and lower 25 respectively.
  • the profiles 22-25 can be made of plastic material, for example PVC, to improve thermal insulation of the refrigerated compartment and prevent condensate phenomena, and they can be externally covered by an aluminium coating which improves the aesthetic features thereof.
  • the door 20 comprises furthermore two panels 30, which are generally adapted to close the access gap 12 delimited by the fixed framework 21.
  • each panel 30 has a rectangular shape substantially having the same height of the access gap 12, and width equivalent to slightly greater than half the width of the access gap 12.
  • each panel 30 is separately adapted to close a respective half of the access gap 12.
  • Each panel 30 comprises a cover panel 31, typically made of transparent material, for example glass, to allow the display of the products contained within the refrigerator cabinet 10, and a frame 32 adapted to perimetrally surround said occlusion sheet 31.
  • the frame 32 is defined by a series of straight profiles that are fixed along the edges of the occlusion sheet 31.
  • profiles of the frame 32 can be made of plastic material, for example PVC, and they can be externally covered by an aluminium coating.
  • each panel 30 is further hinged to the fixed framework 21, so as to be able to rotate with respect thereto around a vertical rotational axis X and parallel to the laying plane of the framework 21, between a closure position and at least one opening position.
  • the outer edge (i.e. facing towards the external of the refrigerator cabinet 10) of the fixed framework 21, in particular of the right 23 and left 22 vertical profiles, and the outer edge of the frame 32 of the panel 30 are substantially flushed, i.e. coplanar, when the panel 30 is in closure position.
  • This hinge coupling is obtained through at least one hinge unit generally indicated with number 50 and shown in detail in the figures 2 - 10 and which will be described in detail hereinafter.
  • the hinge units 50 can be two for each panel 30 respectively arranged in an upper and lower area panel 30 or alternatively one for each panel 30.
  • the hinge units 50 of the left panel 30 are arranged at the left edge of such panel 30, vice versa, the hinge units 50 of the right panel 30 are arranged at the right edge of such panel 30.
  • the panels 30 are adapted to rotate in opposite directions with respect to the framework 21, like two door leaves, each around its own rotation axis X, between the closure position shown in figure 1 towards a further opening position of the respective portion of the access gap 12, such that, when both panels 30 are in said further opening position, the access gap 12 is completely open.
  • FIGS. 2 to 9 show - for the sake of simplicity - only the lower right hinge unit 50.
  • the hinge unit 50 comprises a first support element 51 substantially plate-like, for example rectangular-based with rounded edges, on which there are made through holes 510 adapted to be engaged by screws 511 adapted to fix the support element to the framework 21, for example at the lower profile 25 thereof.
  • a cylindrical seat 512 in which there is rotatably inserted - substantially fittingly - a rotation pin 52, with a vertical axis.
  • cylindrical seat 512 is provided at the front edge of the first support element 51.
  • the hinge unit 50 comprises a second support element 54, also plate-like, for example with rectangular base having bevelled edges.
  • the second support element 54 has a plurality of through holes 540 in which there are inserted fastening screws (not shown) adapted to be fastened to the frame 32 of the panel 30.
  • the rotation pin 52 is fixed (for example obtained in a single piece therewith) - at the lower part - with respect to the second support element 54, projecting with respect thereto, and at an edge (right front in the figure) so that the second support element 54 can rotate above the first support element 51.
  • the positioning of the rotation pin 52 at an edge of the second support element 54 allows the latter to rotate by a 90° angle without the distance between the frame 32 and the vertical profile 23 (or 22) varying during the rotation of the panel 30.
  • the distance between the frame 32 and the vertical profile 23 may be minimal allowing a wider transparent surface of the refrigerator cabinet 10 in its entirety.
  • the second support element 54 is hinged to the first support element 51, through the rotation pin 52, so as to rotate the panel 30 with respect to the framework 21 between a position for closing and opening the access gap 12.
  • the second support element 54 is superimposed - in plan view - to the first support element 51 in the closure position and it is inclined, for example by 90°, with respect thereto in the opening position.
  • the second support element 54 is provided with a substantially cylindrical cavity 541 and arranged adjacent to the rotation pin 52, in which there is inserted, rotatably associated, a torsion spring 53, of the square-shaped bar type coaxially inserted in the cavity 541.
  • a bushing 520 projecting - at the lower part - with respect to the second support element 54 and rotatably associated to the cavity 541.
  • the bushing 520 comprises an inner cavity at whose upper portion alone there is a square-shaped section adapted to obtain a prismatic coupling with the torsion spring 53.
  • the lower end 53a of the torsion spring 53 is rotatably inserted in the bushing 520 (which has a circular section at the lower part, so as to allow the rotation of the lower end of the torsion spring 53 therein) so that to a rotation of the second support element 54 with respect to the first support element 51, as observable hereinafter, there corresponds a rotation of the lower end 53a of the torsion spring 53 with respect to the second support element 54.
  • the torsion spring 53 extends in the longitudinal direction - at the upper part - with respect to the second support element 54 and the upper end 53b of the torsion spring 53 is adapted to be inserted in a locking nut 33, as known to the man skilled in the art, and shown solely schematically in figure 2 or rotatably locked by the upper portion of the bushing 520.
  • the locking nut 33 for example, also has a square-shaped cavity adapted to be inserted - substantially fittingly - on the torsion spring 53 hindering the mutual rotation between the upper end 53b of the torsion spring 53 and the panel 30/the bushing 520 (and it is thus integral with the second support element 54).
  • the cylindrical seat 512 is provided in a cylindrical body projecting - at the upper part - to the first support element 51 (at the recessed area thereof), whose outer surface which faces inwards the first support element 51 has a toothed portion 517a, while the remaining portion 517b of outer surface (which faces outwards with respect thereto) is substantially cylindrical and defines the rounded edge of the first support element.
  • the toothed portion 517a is adapted to mesh with a toothed wheel 521 which is rotatably associated to the second support element 54 and splined on the lower end 53a of the torsion spring 53.
  • the lower end 53a of the torsion spring 53 (which is rotatably integral with the toothed wheel 521), when the second support element 54 is actuated in opening rotation by a user, rotates with respect to the second support element 54 (due to the rotatable driving action of the toothed portion 517a on the toothed wheel 521) countering the action of the torsion spring 53 so as to elastically load the same.
  • the torsion spring 53 (possibly preloaded) maintains the panel 30 closed and thus allows the automatic return of the panel 30 to the closure position once it has been opened.
  • the hinge unit 50 comprises locking means adapted to removably lock therebetween the first support element 51 and the second support element 54 in the open position, countering the action of the torsion spring 53.
  • the locking means comprise an automatic actuation lock bolt 55 which is slidably associated to the first support element 51.
  • the first support element 51 comprises a rectilinear guide 513 arranged adjacent to the cylindrical seat 512 and arranged with longitudinal axis laying on a plane orthogonal to the rotation axis X and inclined, in the example by 20°, with respect to the longitudinal axis of the first support element 51 (with rectangular base).
  • the lock bolt 55 is adapted to slide along the rectilinear guide 513 between an advanced position, in which it is approached to the rotation pin 52 and a receded position, in which it is moved away therefrom.
  • the rectilinear guide 513 is provided at the left raised area of the first support element 51 and it is defined by a notch 514 with longitudinal development obtained in the first support element 51.
  • the notch 514 is shaped to form an open channel at the ends and delimited by a pair of side frames 515 parallel with respect to each other between which the lock bolt 55 is adapted to slide.
  • the notch 514 terminates, with one of the open ends, on the recessed area decentred towards the right of the first support element 51 and, with the other open end, on a widened cavity 516.
  • the widened cavity 516 is arranged upstream of the side frames 515, in the sliding direction of the lock bolt 55 from the receded position to the advanced position.
  • the widened cavity 516 is perimetrally closed on all sides except at the notch 514.
  • a pair of compression springs 56 which are compressed between the closed rear bottom of the widened cavity 516 (distal from the notch 514) and the rear wall of the lock bolt 55, so as to push the lock bolt towards the advanced position thereof.
  • the compression springs 56 are of the helical type and they have respective longitudinal axes parallel with respect to each other.
  • the widened cavity 516 is substantially rectangular shaped (in plan view).
  • the rectilinear guide 513 is provided with an abutment element 518, for example, defined by the connection shoulder between the side frames 515 and the widened cavity 516, which is adapted to stop the travel of the lock bolt 55 in the advanced position thereof.
  • the notch 514 and the widened cavity 516 are, then, closed - at the upper part - by a cover 519 adapted to hold - at the upper part - the lock bolt 55 and the compression springs 56.
  • the lock bolt 55 comprises a substantially parallelepiped-shaped extended body 550 adapted to slidably engage the rectilinear guide whose front end 551 (in the sliding direction from the receded position to the advanced position thereof) is substantially pointed and whose rear end 552 defines a widened wall adapted to interfere - at the front part - with the abutment element 518 and define - at the rear part - a support area for the compression springs 56.
  • the front end 551 of the lock bolt 55 is such to protrude frontally projecting from the left raised area of the first support element 51 being positioned at least partly above the recessed area on the right side thereof.
  • the first support element 51 defines a box-shaped body in which there is inserted - therewithin - the lock bolt 55, whose front end 551 alone exits from the open end of the notch 514 which faces towards the rotation pin 52.
  • the locking means comprise a retention seat 57 obtained in the second support element 52 and, thus, rotatably integral therewith, which is adapted to receive the front end 551 of the lock bolt 55 when the second support element 54 is in the opening position.
  • the retention seat 57 is provided at one side (rear in figure 2 ) of the second support element 54 and it is obtained on a shaped tooth 570 projecting beneath the second support element, so that, rotating the second support element 54 by 90° from the closure position to the opening position, the retention seat 57 passes over the recessed area (right) of the first support element 51, from a position in which it is not aligned with the lock bolt 55 (along the sliding direction of the lock bolt) to a position in which it is aligned therewith and accessible therefrom.
  • the retention seat 57 has a substantially V-shaped profile - in plan view - so as to receive - substantially fittingly - the advanced pointed end 551 of the lock bolt 55, when it is in the advanced position, and guarantee the centring thereof.
  • the tooth 570 comprises at least one rounded side 571 arranged in lateral position with respect to the retention seat 57 and adapted to come to contact with the front end 551 of the lock bolt 55, during the rotary motion of the second support element 54 with respect to the first support element 51 between the opening position and the closure position.
  • the rounded side 571 serves as a cam for the lock bolt 55 moving it, countering the compression springs 56, from the advanced position to the receded position, during the rotary motion imparted to the panel 30 by the user.
  • the compression of the compression springs 46 by the rounded side 571 allow the snap-coupling of the lock bolt 55 in the retention seat 57, when opening the panel 30, and simultaneously facilitates the exit thereof for the unlocking thereof, when closing.
  • the compression springs 56 are configured so that the rigidity thereof is greater than the rigidity of the torsion spring 53, so that when the lock bolt 55 is inserted in the retention seat 57 the torsion spring 53 is not capable, alone, of removing the constraint to the rotation of the second support element 54 with respect to the first support element 51 offered by the lock bolt 55.
  • lock bolt be of the manual locking type of the type known to the man skilled in the art.
  • the hinge unit 50 operates as follows.
  • the panel 30 is normally closed and, thus, the second support element 54 is superimposed (in the closure position thereof) to the first support element 51 pushed by the preload imparted to the torsion spring 53.
  • the retention seat 57 rotates with the second support element 54 moving before the lock bolt 55, which, previously pushed by the rounded side 571 of the tooth 570 in the receded position thereof against the thrust action of the compression springs 56, it is instantaneously and automatically moved in the advanced position (due to the action of the compression springs 56) snap-coupling the retention seat.
  • the fissure present between the vertical profile 23 and the edge of the second support element 54 may be comprised between 3.5 mm and 6.5 mm (with the normal tolerance in the industry substantially mounting to +/- 0.5 mm).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Hinges (AREA)
  • Refrigerator Housings (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
EP12177557A 2011-09-29 2012-07-24 Scharniereinheit für Kühlschranktüren Withdrawn EP2574869A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000074A ITRE20110074A1 (it) 2011-09-29 2011-09-29 Gruppo di cerniera per porte di armadi frigoriferi

Publications (1)

Publication Number Publication Date
EP2574869A1 true EP2574869A1 (de) 2013-04-03

Family

ID=44908000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12177557A Withdrawn EP2574869A1 (de) 2011-09-29 2012-07-24 Scharniereinheit für Kühlschranktüren

Country Status (2)

Country Link
EP (1) EP2574869A1 (de)
IT (1) ITRE20110074A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2908073A1 (de) * 2014-02-13 2015-08-19 Cisaplast S.P.A. Verbesserte Scharniergruppe für Kühlschranktüren
CN112096200A (zh) * 2020-10-22 2020-12-18 山东省滨州市冰厨制冷设备有限公司 外置式门体回归铰链

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510986A (en) * 1968-10-01 1970-05-12 Kason Hardware Corp Self-closing hinged doors and hinges therefor
US5158503A (en) * 1990-11-21 1992-10-27 White Consolidated Industries, Inc. Double-pivot door hinge for appliance doors
US20050188506A1 (en) * 2004-02-26 2005-09-01 Seung-Ryong Lee Door hinge structure for refrigerator
US20050273974A1 (en) * 2003-07-31 2005-12-15 Samsung Electronics Co., Ltd. Refrigerator
WO2006025663A1 (en) * 2004-08-20 2006-03-09 I-One Innotech Co., Ltd. Slim type hinge apparatus having automatic return function
US20080168618A1 (en) * 2007-01-17 2008-07-17 Sub-Zero Freezer Company, Inc. Hinge and closure device for refrigerator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510986A (en) * 1968-10-01 1970-05-12 Kason Hardware Corp Self-closing hinged doors and hinges therefor
US5158503A (en) * 1990-11-21 1992-10-27 White Consolidated Industries, Inc. Double-pivot door hinge for appliance doors
US20050273974A1 (en) * 2003-07-31 2005-12-15 Samsung Electronics Co., Ltd. Refrigerator
US20050188506A1 (en) * 2004-02-26 2005-09-01 Seung-Ryong Lee Door hinge structure for refrigerator
WO2006025663A1 (en) * 2004-08-20 2006-03-09 I-One Innotech Co., Ltd. Slim type hinge apparatus having automatic return function
US20080168618A1 (en) * 2007-01-17 2008-07-17 Sub-Zero Freezer Company, Inc. Hinge and closure device for refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2908073A1 (de) * 2014-02-13 2015-08-19 Cisaplast S.P.A. Verbesserte Scharniergruppe für Kühlschranktüren
CN112096200A (zh) * 2020-10-22 2020-12-18 山东省滨州市冰厨制冷设备有限公司 外置式门体回归铰链

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