EP1525827B1 - Refrigerated showcase - Google Patents

Refrigerated showcase Download PDF

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Publication number
EP1525827B1
EP1525827B1 EP04023086A EP04023086A EP1525827B1 EP 1525827 B1 EP1525827 B1 EP 1525827B1 EP 04023086 A EP04023086 A EP 04023086A EP 04023086 A EP04023086 A EP 04023086A EP 1525827 B1 EP1525827 B1 EP 1525827B1
Authority
EP
European Patent Office
Prior art keywords
cables
protrusion
showcase
springs
top edge
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.)
Expired - Fee Related
Application number
EP04023086A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1525827A1 (en
Inventor
Kaname Akimoto
Shoichi Oda
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.)
Daiwa Industries Ltd
Original Assignee
Daiwa Industries Ltd
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 Daiwa Industries Ltd filed Critical Daiwa Industries Ltd
Publication of EP1525827A1 publication Critical patent/EP1525827A1/en
Application granted granted Critical
Publication of EP1525827B1 publication Critical patent/EP1525827B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0404—Cases or cabinets of the closed type
    • A47F3/0426—Details
    • A47F3/043—Doors, covers

Definitions

  • This invention relates to a refrigerated showcase for storing and displaying e.g. sushi materials or rare cakes, comprising a showcase body having a work side and a display side through which the interior of the showcase body can be seen and including a pair of guides provided on the work side, a pair of double slide doors each received in one of the guides so as to be slidable along the guide, a pair of cables each supported by a sheave and movable along one of the guides, a drive unit for driving the cables, and a pair of coupling arrangements each for coupling one of the cables to the corresponding slide door
  • Such a showcase is disclosed in JP patent publication 2004-73537, in which reversible motors for driving double slide doors are mounted in a machine room of the showcase.
  • the doors are connected to the respective reversible motors through wires.
  • An optical sensor is mounted to the showcase. When a cook puts out his hand to take out sushi materials in the showcase, the optical sensor produces a signal. The reversible motors thus turn to open the double slide doors. Simultaneously, a clock circuit is activated. When a predetermined time has passed, the double slide doors are closed.
  • the circuit is structured such that while the optical sensor is detecting the hand of the cook, the clock circuit is reset so that the double slide doors will not close.
  • the slide doors tend to start and stop rather abruptly and impulsively, producing much noise, which annoys both cooks and diners. It is difficult to dismount the slide doors. Without dismounting the slide doors, it is difficult to completely wash the interior of the showcase, which is not hygienically desirable.
  • An object of the present invention is to provide a refrigerated showcase of which the slide doors can be opened and closed without producing much noise and which can reduce the volume of the machine room to a minimum.
  • the coupling arrangements each include a cushioning member for absorbing any shock when the slide doors begin to move or come to a stop.
  • each of the cables has two ends, the coupling arrangements each comprising a rod member received in one of the guides and formed with a recess, a protrusion formed on one of the slide doors along a top edge thereof and received in the recess, and springs each having one end thereof coupled to one end of the rod member and the other end thereof coupled to one of the two ends of one of the cables, the springs serving as the cushioning member.
  • each of the cables has two ends, the coupling arrangement each comprising a rod member received in one of the guides and formed with a protrusion, a recess formed in one of the slide doors along a top edge thereof and receiving the protrusion, and springs each having one end thereof coupled to one end of the rod member and the other end thereof coupled to one of the two ends of one of the cable, the springs serving as the cushioning member.
  • the rod member further includes a small plate member having a width substantially equal to the width of the protrusion and recess and arranged so as to overlap with and conceal the protrusion and recess when viewed from the work side of the showcase body, the small plate member having its bottom end protruding from bottom ends of the guides.
  • the cables are endless members, the coupling arrangements each comprising a protrusion formed on one of the slide doors along a top edge thereof and formed with a groove through which one of the cables extends, a pair of retainer pieces fixed to the one of the cables on either side of the protrusion, separate from respective ends of the protrusion, and springs each disposed between one of the retainer pieces and the protrusion, the springs serving as the cushioning member.
  • the cables are endless members
  • the slide doors are each formed with a groove extending the entire top edge thereof and a cutout along the top edge thereof so as to interrupt the groove, one of the cables extending through the groove and the cutout, the coupling arrangements each comprising a retainer piece received in the cutout and fixed to the one of the cables, and springs each disposed between one of two end walls of the cutout and the retainer piece, the springs serving as the cushioning member.
  • bellows tubes or sponge tubes may be used.
  • the drive unit comprises two electric motors each for driving one of the cables, said motors being arranged one over the other, the sheaves supporting the respective cables are mounted on a common shaft so as to be rotatable relative to the shaft and independently of each other.
  • the showcase embodying the present invention has a work side W through which cooks or shop clerks can access the interior of the showcase, and a transparent display side through which diners or shoppers can see the interior of the showcase.
  • An opening 11 on the work side W has top and bottom edges.
  • Two rows of grooves 12 run along each of the top and bottom edges of the opening 11.
  • Double slide doors 13 are received in the respective grooves 12.
  • a sensor or sensors (not shown) for detecting human hands are provided at appropriate portions of the showcase body.
  • This refrigerated showcase 10 includes a machine room 14 provided at one end of the showcase and housing two electric motors 15 having output shafts 15s carrying pulleys 16.
  • the showcase of the embodiment further includes two cables 20 each trained around one of the pulleys 16, and one of two terminal sheaves 19 provided at the other end of the showcase.
  • the cables 20 are tensioned by tensioners 18 provided at the other end of the showcase.
  • Each cable 20 is supported by two intermediate sheaves 17 each rotatably supported on a shaft on which is rotatably supported one of the two intermediate sheaves 17 for the other cable 20. But the cables 20 may have their intermediate portions supported in a different manner. As shown in Figs.
  • each cable 20 has its two ends connected through springs 23 to one and the other ends of a rod member 22 received in one of the grooves 12 running along the top edge of the opening 11.
  • Each rod member 22 is formed with a recess 21 into which a protrusion 24 formed on the top edge of one of the slide doors 13 engages.
  • the rod member 22, the springs 23 and the protrusion 24 constitute a coupling means 25.
  • the motors 15 are provided one over the other.
  • the showcase further includes a louver 26 for discharging heat generated in the machine room 14.
  • the cables 20 are received in the grooves 12 running along the top edge of the opening 11. As shown in Figs. 3A and 3C, the cables 20 have their ends connected to the rod members 22 through the springs 23.
  • each rod member 22 may have on its side facing the work side a plate portion (or member) 22t having a width substantially equal to the width of the recess 21 and the protrusion 24, and protruding downwardly from the bottom edge of the groove 12.
  • plate portions 22t as guides, it is possible to dismount the slide doors 13 easily to wash the interior of the showcase.
  • the springs 23 absorb any shocks when the doors 13 begin to move under the driving force delivered from the motors 15 through the cables 20 and when they come to a stop. Thus, the doors 13 can be started and stopped smoothly.
  • the recess 21 is formed in the rod member 22, and the protrusion 24 formed on the top edge of each door 13 is received in the recess 21.
  • a recess 21a is formed in the top edge of each door 13 and a protrusion 24a formed on the rod member 22 is received in the recess 21a.
  • each cable 20 has its end connected to the respective ends of the rod member 22 through springs 23.
  • the rod member 22, the recess 21a and the springs 23 constitute a coupling means 25 through which the cable 20 is connected to the respective door 13.
  • Fig. 4B shows another embodiment, in which each cable 20 is an endless member.
  • the coupling means 25 comprises a protrusion 24b formed on the top edge of each door 13 and formed with a groove 27a through which the cable 20 extends, retainer pieces 28 fixed to the cable 20 on both sides of the protrusion, separate from the respective ends of the protrusion 24b, and springs 23 each disposed between one of the retainer pieces 28 and the protrusion 24b.
  • Each spring 23 is connected to the protrusion 24b through a small washer 29.
  • each cable 20 is an endless member, which extends through a groove 27b formed in each door 13 along the top edge thereof, and a cutout 21b formed in the top edge of each door 13.
  • the coupling means 25 comprises a retainer piece 28b fixed to the cable 20 in the cutout 21b, and springs 23 disposed between the retainer piece 28b and the respective end walls of the cutout 21b.
  • Each spring 23 is connected to the end wall of the cutout 21b through a small washer 29.
  • bellows tubes or sponge tubes may be used in either of the embodiments of Figs. 4B and 4C.
  • the cushioning member absorbs any shocks produced when each slide door begins to move or comes to a stop, thus minimizing noise which is annoying to both cooks and diners.
  • the small plate provided on each rod member can be used as a mark when dismounting the slide doors. The slide doors can thus be removed easily for cleaning.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Refrigerator Housings (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
EP04023086A 2003-10-23 2004-09-28 Refrigerated showcase Expired - Fee Related EP1525827B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003363249A JP2005124793A (ja) 2003-10-23 2003-10-23 冷蔵ショーケース
JP2003363249 2003-10-23

Publications (2)

Publication Number Publication Date
EP1525827A1 EP1525827A1 (en) 2005-04-27
EP1525827B1 true EP1525827B1 (en) 2006-09-13

Family

ID=34386524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04023086A Expired - Fee Related EP1525827B1 (en) 2003-10-23 2004-09-28 Refrigerated showcase

Country Status (4)

Country Link
US (1) US20050088062A1 (ja)
EP (1) EP1525827B1 (ja)
JP (1) JP2005124793A (ja)
DE (1) DE602004002360T2 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20070544A1 (it) * 2007-10-17 2009-04-18 Ind Scaffalature Arredamenti I Sistema di chiusura per banchi frigoriferi.
EP2218360A1 (en) * 2009-02-13 2010-08-18 Astron Engineering Limited A display cabinet
US9372025B2 (en) * 2012-10-22 2016-06-21 Anthony, Inc. Covers for refrigeration systems
US9234694B2 (en) * 2013-11-04 2016-01-12 Refrigeracion Ojeda Refrigeration units and door systems for refrigeration units
EP3091315B8 (en) * 2015-01-07 2021-11-03 Hisense Ronshen Guangdong Refrigerator Co., Ltd. Refrigerator
CN108125471B (zh) * 2017-12-20 2021-09-28 合肥市东庐机械制造有限公司 一种矿山机械配件展示架
CZ34270U1 (cs) * 2020-06-17 2020-08-11 RGT s.r.o. Hygienický zákryt potravinářských pultů
CN111794647B (zh) * 2020-07-02 2022-04-19 长虹美菱股份有限公司 一种冰箱门体
DE102020134893A1 (de) * 2020-12-23 2022-06-23 PAN-DUR Holding GmbH & Co. KG Scheibensystem für ein Kühlmöbel und Kühlmöbel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10118437A1 (de) * 2001-04-12 2002-10-17 Linde Ag Warenpräsentationsmöbel mit Schiebedeckel
JP2004073537A (ja) * 2002-08-20 2004-03-11 Daiwa Industries Ltd 寿司ネタショーケース

Also Published As

Publication number Publication date
EP1525827A1 (en) 2005-04-27
US20050088062A1 (en) 2005-04-28
DE602004002360T2 (de) 2006-12-28
DE602004002360D1 (de) 2006-10-26
JP2005124793A (ja) 2005-05-19

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