US20110031863A1 - Refrigerating appliance with a height-adjustable storage device - Google Patents

Refrigerating appliance with a height-adjustable storage device Download PDF

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Publication number
US20110031863A1
US20110031863A1 US12/937,375 US93737509A US2011031863A1 US 20110031863 A1 US20110031863 A1 US 20110031863A1 US 93737509 A US93737509 A US 93737509A US 2011031863 A1 US2011031863 A1 US 2011031863A1
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US
United States
Prior art keywords
storage device
refrigerating appliance
brake
elements
housing
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.)
Abandoned
Application number
US12/937,375
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English (en)
Inventor
Roland Benitsch
Albert Poidinger
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Assigned to BSH BOSCH UND SIEMENS HAUSGERAETE GMBH reassignment BSH BOSCH UND SIEMENS HAUSGERAETE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BENITSCH, ROLAND, POIDINGER, ALBERT
Publication of US20110031863A1 publication Critical patent/US20110031863A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
    • A47B57/06—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of the shelves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/04—Charging, supporting, and discharging the articles to be cooled by conveyors

Definitions

  • the present invention relates to a refrigerating appliance with a housing enclosing an interior space and a storage device which can be adjusted between a high and a low position within the interior space by a gear mechanism.
  • a refrigerating appliance is known from DE 10 2006 014 370 A1.
  • the gear mechanism helps to ensure that the storage device retains a horizontal orientation while being adjusted between the high and the low position, so that the storage device can be adjusted without endangering the equilibrium of objects stored on it.
  • a problem can however arise from the fact that a user, when lowering the storage device, must initially only exert a small force, but that this force—conditional on the path on which the gear mechanism guides the storage device—greatly increases during the course of the movement up to an intermediate position in which the user must balance the entire weight of the storage device and the objects located on it. If he is surprised by this or accidentally lets go of the storage device it drops back into the lower position so that there is still the danger of objects falling over.
  • the object of the present invention is to develop a refrigerating appliance of the type specified above so that accidents when the storage device is being adjusted can be excluded with a greater level of certainty, without the operating comfort of the height adjustment being adversely affected.
  • the object is achieved by the gear mechanism being assigned a brake which selectively damps the movement of the storage device from the high position into the low position.
  • the braking force of this brake is expediently set so that, with normal loading, a movement of the storage device into the lower position is slowed down sufficiently to prevent it dropping abruptly into the lower position without the user having to support the storage device during its movement to achieve this. Since the brake is not effective during an upwards movement of storage device this adjustment is no more strenuous for the user than in the conventional refrigerating appliance.
  • Hydraulic or pneumatic dampers are especially known as selectively-acting brakes, in which a fluid is circulated by a movement driven from outside between two chambers and, when this is done, in one movement direction passes a slightly permeable non-return valve and in the opposite movement direction passes a constriction.
  • the brake is embodied as a friction brake.
  • this friction brake comprises a first brake element and a second brake element able to be moved frictionally over the first brake element, which is adjustable by an adjusting element of the gear mechanism between two positions with different levels of friction, preferably a position in friction contact with the first braking element and a position not in friction contact with the first braking element.
  • the adjusting element is coupled to the storage device in a movable manner in order to establish the strong frictional contact when the storage device is moved into the lower position and to establish the weak frictional contact when the storage device is moved into the high position.
  • the gear mechanism comprises an element guiding the movement of the storage device connected to the housing and the storage device, the adjusting element is movable in relation to fixed stops on the housing between a first and a second stop position, with the freedom of movement of the adjusting element between the stop positions being smaller than the freedom of movement of the element so that the adjusting element is necessarily taken along on a part of the movement of the element along with the latter and the adjustment element is able to be locked in relation to the element into a position corresponding to a weak friction contact and into a position corresponding to a strong friction contact so that, depending on the position of the adjusting element in relation to the element, a different level of friction contact is produced.
  • the element is able to be rotated between the upper and the lower position of the storage device.
  • one of the braking elements prefferably be an arc-shaped spring, so that the other braking element is able to be moved on its arc-shaped path guided by the element along a circumferential surface of the spring.
  • the spring is preferably provided at at least one end with a stop limiting the freedom of movement of the other braking element.
  • a latching recess can also be provided in which the other braking element is able to be latched in order to stabilize the storage device in its high or its low position.
  • the spring preferably bears a projection on its circumferential surface facing away from the other brake element which is supported by the adjusting element in its second stop setting and thus presses the spring into the path of the other braking element or ensures that the spring cannot yield to the pressure of the other braking element.
  • the two latching positions can be realized with the aid of an arc-shaped spring of the adjusting element which runs concentrically to its axis of rotation and has two stop surfaces of which the contact with a latching projection of the element defines the two latching positions.
  • the element connected rotatably to the housing and the storage device can be embodied as a hollow wheel in the interior of which the braking element and the adjusting element are accommodated.
  • the brake can comprise an element storing the potential energy of the storage device on transition into the low position and releasing it on transition into the high position.
  • a number of elements connected rotatably to the housing and storage device are preferably rotationally coupled to each other.
  • the rotational coupling can be established via a belt between elements which engage on a same side wall of the housing.
  • the coupling is preferably realized by a connecting rod.
  • the rod advantageously runs in a space-saving manner along the axis of rotation on which the two rotatable elements connected by it are articulated on the storage device.
  • FIG. 1 a perspective part of view of a storage device and its support in its high position
  • FIG. 2 a part view of the storage device in its low position
  • FIG. 3 a part view of one of the parts of the gear mechanisms supporting the storage device, with the wheel removed;
  • FIG. 4 an internal review of the part of the gear mechanism from a direction opposite to the perspective of FIG. 3 ;
  • FIG. 5 a part view of the part of the gear mechanism in the high position
  • FIG. 6 an intermediate stage of the part of the gear mechanism on the way to the low position
  • FIG. 7 a second intermediate stage of the part of the gear mechanism on the way to the low position
  • FIG. 8 the part of the gear mechanism in the state latched into the low position
  • FIG. 9 the part of the gear mechanism after the latch has been released
  • FIG. 10 a first intermediate stage of the part of the gear mechanism on the path into the high position
  • FIG. 11 a second intermediate stage on the path into the high position
  • FIG. 12 a part of the gear mechanism in accordance with a second embodiment of the invention which holds a storage device in the high position
  • FIG. 13 the part of the gear mechanism of FIG. 12 with the storage device in the lower position.
  • FIG. 1 shows a perspective part view of a storage device 1 , here in the form of a glass plate 3 surrounded by a frame 2 , which with the aid of two part of the gear mechanism 4 , each supporting it at one edge, is able to be adjusted between a high position shown in FIG. 1 and a low position shown in FIG. 2 .
  • the part of the gear mechanism shown in the figure comprises a flat housing which is intended to be mounted in a recess in a side wall of refrigerating appliance housing.
  • the opposing edge of the frame 2 not shown in the figure is supported by a part of the gear mechanism not shown in the figure, constituting a mirror image of the part of the gear mechanism 4 .
  • Two wheels 5 protrude into the interior space of the refrigerating appliance housing from the flat rectangular housing of the part of the gear mechanism 4 .
  • the wheels 5 are able to be turned in relation to the gear mechanism housing around an axis 6 and each bear a pin 7 eccentric to the axis 6 onto which the frame 2 is clamped.
  • the pins 7 lengthened to a rod 8 rigidly connecting the wheels 5 and merged in order to couple the rotation of the wheels 5 to one another.
  • Wheels 5 of a part of the gear mechanism 4 close to the rear wall and close to the door are coupled in each case by a toothed belt guided inside its housing and therefore not visible in FIGS.
  • FIG. 3 shows a part view of one of the parts of the gear mechanism 4 , with a wheel omitted from the figure in order to guarantee a view of the inside of the housing through an opening of the housing of the part of the gear mechanism normally closed off by the wheel 5 .
  • a central bearing bush 9 Protruding centrally from the rear wall 8 of the gear mechanism housing visible through the opening is a central bearing bush 9 , onto which normally a hollow shaft of the wheel 5 is pushed to allow rotation.
  • the bearing bush 9 and the hollow shaft (not shown here) are surrounded by a rotatable adjustment element 10 .
  • Protruding radially from a central ring 11 of the adjusting element 10 is a stop arm 12 .
  • the stop arm 12 is shown in a stop position in which it rests against a first projection 13 of the rear wall 8 .
  • a semicircular spring arm 14 concentric to the bearing bush is connected opposite the stop arm 12 to the ring 11 .
  • a semicircular rib 15 protruding from the rear wall 8 is centered on the bearing bush 9 .
  • latching recesses 16 , 17 curved in a concave shape to the outside.
  • the rib is connected in one piece to the rear wall 8 at the height of the latching recesses 16 , 17 . In its center section it is separated from the rear wall on both sides by a narrow gap 18 in order to enable it to yield elastically to a pressure acting in a radial direction on it.
  • a radial projection 19 directed inwards is formed in a lower area of the rib 15 on its inner side.
  • a toothed belt 20 can be seen around the rib 15 , which in the fully assembled state passes around both wheels of the part of the gear mechanism 4 and meshes with these wheels with teeth in order to couple their rotations to one another.
  • FIG. 4 shows a part view of the part of the gear mechanism 4 seen from the side of the rear wall 8 (omitted in the figure).
  • a sprocket 21 of the wheel 5 can be seen in the figure into which the toothed belt 20 engages, and a central sleeve 22 of the wheel 5 onto which the adjustment element 10 is pushed so that it can rotate and which for its part is provided to be able to be pushed rotatably onto the bearing bush 9 .
  • a projection 23 directed radially inwards is formed on the sprocket 21 .
  • a pin 24 projects not far from the sleeve 22 into the inside of the wheel 5
  • FIG. 5 shows a cross-section of the configuration of the part of the gear mechanism 4 while the storage device 1 is in the high position.
  • the projection 23 of the sprocket 21 is engaged in the upper latching recess 16 of the rib 15 .
  • the adjusting element 10 is located in a stop position on the projection 13 of the rear wall 8 .
  • the pin 24 deflects the tip of the spring arm 14 radially outwards and enters a cutout between the spring arm 14 and the ring 11 of the adjusting element 10 .
  • the rib 15 comes into frictional contact with the projection 23 of the sprocket at the height of the projection 19 .
  • the rib 15 can be formed so that this frictional contact is only made when the rib is deflected outwards by the stop arm 12 ; it can also be formed so that the frictional contact is also made in the relaxed configuration of the rib of 15 , but the rib 15 can slightly deflect the pressure of the projection 23 if the projection 19 is not supported by the stop arm 12 .
  • the friction arising between the projection 23 and the rib 15 brakes the upwards movement of the storage device 1 .
  • the gear mechanism is in the configuration shown in FIG. 8 .
  • the adjusting element 10 continues to support the rib 15 radially outwards, but the projection 23 has passed the supported area of the rib 15 in the meantime and is latched into its lower latching recess 17 . Since the rib is connected rigidly at the height of the latching recess to the rear wall 8 and outer side of the cutout 17 represents a stop which the projection 23 cannot pass.
  • the pin 24 of the wheel has reached the end of the cutout between spring arm 14 and ring 11 of the adjusting element and in doing so has overcome a projection 26 on the inside of the spring arm 14 .
  • the braking mechanism described above can be provided on one of the two wheels 5 of each part of the gear mechanism 4 . To increase the security it can also be provided on both wheels 5 .
  • FIG. 12 shows a section through a part of the gear mechanism let into a side wall of the refrigerating appliance in accordance with a second embodiment of the invention.
  • the housing of the gear mechanism part is omitted in the figure for the sake of simplicity except for the bearing bush 9 .
  • the sectional plane runs through the central sleeves 22 of the two wheels 5 pushed onto the bearing bushes 9 , but not through their sprockets 21 around which the toothed belt 20 passes.
  • a coil spring 28 is tensioned between the two wheels 5 and engages on their sleeves 22 via two elongated belts 30 each provided with an eye 29 .
  • Two elongated leaf springs 31 are each connected at an end facing towards the coil spring 28 rigidly to the housing, and a free end of the leaf springs 31 touches one of the sleeves 22 in each case. At a distance from the free end the leaf springs 31 each bear a projection 32 facing towards one of the belts 30 .
  • the configuration of the part of the gear mechanism shown in FIG. 12 corresponds to the high position of the storage device 1 suspended on the wheels 5 .
  • the wheels 5 are turned by around 180° in the counterclockwise direction.
  • the belt 30 winds itself on each wheel a little way further around the sleeve 22 .
  • the spring 28 is tension and is turned slightly, as can be seen in FIG. 13 .
  • the expansion of the spring 28 is proportional to the turning of the wheels 5 , meaning that the return force of the spring 28 increases as the wheels are turned. Since shortly before reaching the lower position the drive force resulting from the weight of the storage device and its load approaches zero, the storage device is thus effectively slowed down before reaching the lower position and a sudden stop can be avoided if the storage device is not overloaded.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Braking Arrangements (AREA)
  • Transmission Devices (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
US12/937,375 2008-04-17 2009-04-08 Refrigerating appliance with a height-adjustable storage device Abandoned US20110031863A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008019385.2 2008-04-17
DE102008019385A DE102008019385A1 (de) 2008-04-17 2008-04-17 Kältegerät mit höhenverstellbarem Absteller
PCT/EP2009/054227 WO2009127575A2 (de) 2008-04-17 2009-04-08 Kältegerät mit höhenverstellbarem absteller

Publications (1)

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US20110031863A1 true US20110031863A1 (en) 2011-02-10

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US12/937,375 Abandoned US20110031863A1 (en) 2008-04-17 2009-04-08 Refrigerating appliance with a height-adjustable storage device

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US (1) US20110031863A1 (de)
EP (1) EP2271883B1 (de)
CN (1) CN102007356B (de)
DE (1) DE102008019385A1 (de)
ES (1) ES2388483T3 (de)
RU (1) RU2010143310A (de)
WO (1) WO2009127575A2 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090121600A1 (en) * 2006-03-27 2009-05-14 Bsh Bosch Und Siemens Hausgeraete Gmbh Refrigerating Appliance With Height-Adjustable Storage Device
US20100066227A1 (en) * 2008-07-07 2010-03-18 Axel Julio Ramm Mechanism For Moving Shelves of A Refrigeration Appliance and Refrigeration Appliance
US20120104914A1 (en) * 2010-11-03 2012-05-03 Bsh Bosch Und Siemens Hausgerate Gmbh Dishwasher
WO2013041679A2 (en) 2011-09-21 2013-03-28 Arcelik Anonim Sirketi A cooling device comprising a shelf the height of which can be adjusted
US20130081421A1 (en) * 2011-10-04 2013-04-04 Hongsik Kwon Refrigerator
US20130099646A1 (en) * 2011-10-25 2013-04-25 Aaron Matthew McDaniel Variable height slide-out rack for appliance
WO2013098257A1 (en) 2011-12-30 2013-07-04 Arcelik Anonim Sirketi A cooling device comprising a height adjustable shelf
US20150076985A1 (en) * 2013-09-13 2015-03-19 Lg Electronics Inc. Refrigerator and shelf assembly for a refrigerator
US20150096169A1 (en) * 2012-05-31 2015-04-09 Kureha Corporation Slurry for positive electrode for sulfide-based solid-state battery, positive electrode for sulfide-based solid-state battery and method for manufacturing the same, and sulfide-based solid-state battery and method for manufacturing the same
US20150102718A1 (en) * 2011-12-05 2015-04-16 Hefei Hualing Co., Ltd. Shelf assembly and refrigerator comprising the same
US9243839B2 (en) * 2014-04-16 2016-01-26 Lg Electronics Inc. Refrigerator
US20160047594A1 (en) * 2014-08-12 2016-02-18 Lg Electronics Inc. Refrigerator
US9310126B2 (en) 2014-04-18 2016-04-12 Lg Electronics Inc. Refrigerator
US10383506B2 (en) * 2017-04-11 2019-08-20 Illinois Tool Works Inc. Height-adjusting device for shelves of appliances, in particular for dishwasher racks
US10451336B2 (en) * 2017-10-12 2019-10-22 Whirlpool Corporation Adjustable refrigerator compartment and door assembly

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TR201005608A2 (tr) * 2010-07-09 2010-12-21 Vestel Beyaz Eşya Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇@ Seviye ayarlı bir raf düzeneği.
DE102013109314A1 (de) 2013-08-28 2015-03-05 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Bremsanordnung für das Bremsen einer Klappe eines Kraftfahrzeugs
CN104792108B (zh) * 2015-04-29 2017-12-29 青岛海尔股份有限公司 冰箱及其可升降搁物架
DE102016223181A1 (de) * 2016-11-23 2018-05-24 BSH Hausgeräte GmbH Haushaltsgerätetür und Verfahren zum Verstellen eines Türabstellers einer Haushaltsgerätetür

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US7338142B2 (en) * 2002-04-25 2008-03-04 Kabushiki Kaisha Toshiba Shelving unit and refrigerator having the same
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US3283731A (en) * 1965-03-30 1966-11-08 American Mach & Foundry Self-leveling device
US3409339A (en) * 1966-05-20 1968-11-05 Rca Corp Damping device
US3640142A (en) * 1970-06-17 1972-02-08 Mallory & Co Inc P R Combination speed reduction and escapement means
US3712433A (en) * 1970-10-07 1973-01-23 Burroughs Corp Dual torque coupling
US3908560A (en) * 1972-09-25 1975-09-30 Onway Construction Company Lim Counterbalancing system for a drafting table or the like
US3982801A (en) * 1975-11-17 1976-09-28 General Motors Corporation Power-operating vertically adjustable cantilever shelves for appliance cabinets
US4217010A (en) * 1978-12-22 1980-08-12 General Electric Company Adjustable volume-split refrigerator
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RU2010143310A (ru) 2012-05-27
EP2271883B1 (de) 2012-07-11
DE102008019385A1 (de) 2009-10-22
EP2271883A2 (de) 2011-01-12
WO2009127575A3 (de) 2009-12-23
CN102007356B (zh) 2014-07-02
CN102007356A (zh) 2011-04-06
ES2388483T3 (es) 2012-10-15
WO2009127575A2 (de) 2009-10-22

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