[특허]Sliding door assembly for a refrigerated display case

Anthony, Inc.

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Sliding door assembly for a refrigerated display case

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47B-088/00 A47F-003/00 E05D-015/06 E05F-005/00 E05F-005/06 E05F-011/54 E06B-003/46 E05F-003/22
출원번호	US-0705558 (2015-05-06)
등록번호	US-9532659 (2017-01-03)
발명자 / 주소	Tsui, Harvey Walp, Matthew
출원인 / 주소	Anthony, Inc.
대리인 / 주소	Foley & Lardner LLP
인용정보	피인용 횟수 : 0 인용 특허 : 17

초록
▼

A sliding door assembly for a refrigerated display case is provided. The sliding door assembly includes a door frame having a top frame segment and a plurality of sliding bearings that slide along channels within the top frame segment. A plurality of display case doors are coupled to the sliding bearings and configured to slide, along with the sliding bearings, between an open position and a closed position. The display case doors may be suspended from the sliding bearings. The sliding door assembly may include an automatic closure system coupled to the display case doors and configured to apply a closing force that automatically returns the display case doors to the closed position. One or more magnets may apply a magnetic damping force as the display case doors approach the closed position to facilitate a soft closure of the display case doors.

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1. A sliding door assembly for a refrigerated display case, the sliding door assembly comprising: a door frame comprising a top frame segment defining a plurality of substantially horizontal and parallel channels;a plurality of sliding bearings positioned within and supported by the substantially horizontal and parallel channels and configured to slide along the top frame segment within the substantially horizontal and parallel channels;a plurality of display case doors suspended from the plurality of sliding bearings and configured to slide, along with the plurality of sliding bearings, between an open position and a closed position, the plurality of display case doors comprising a first display case door and a second display case door;an automatic closure system coupled to the plurality of display case doors and configured to apply a closing force that automatically returns the plurality of display case doors to the closed position; anda first magnet coupled to the door frame and positioned relative to the first display case door and the second display case door such that the first magnet is configured to apply both: a magnetic damping force to the first display case door as the first display case door approaches the closed position, the magnetic damping force opposing the closing force applied by the automatic closure system and damping a closure of the first display case door; anda magnetic holding force to the second display case door when the second display case door is in the open position, the magnetic holding force opposing the closing force applied by the automatic closure system and holding the second display case door in the open position. 2. The sliding door assembly of claim 1, wherein: the plurality of substantially parallel channels comprise a front channel and a rear channel;the plurality of sliding bearings comprise a front set of sliding bearings that slide within the front channel and a rear set of sliding bearings that slide within the rear channel;the front display case door is suspended from the front set of sliding bearings and the rear display case door is suspended from the rear set of sliding bearings. 3. The sliding door assembly of claim 1, wherein: the top frame segment has an open bottom face;each of the plurality of display case doors comprises a suspension frame segment along a top of the display case door, each suspension frame segment extending through the open bottom face of the top frame segment and attaching to one or more of the plurality of sliding bearings. 4. The sliding door assembly of claim 1, wherein each of the plurality of sliding bearings comprises: a body comprising a ball bearing carriage configured to slide substantially horizontally within the top frame segment; andone or more posts extending substantially horizontally from the body, wherein the plurality of display case doors are suspended from the one or more posts. 5. The sliding door assembly of claim 1, wherein: the plurality of sliding bearings comprise a magnetic material; andthe first magnet magnetically engages the plurality of sliding bearings as the first display case door approaches the closed position. 6. The sliding door assembly of claim 1, wherein the first magnet is fixed to the top frame segment. 7. The sliding door assembly of claim 6, wherein the first magnet is fixed to an exterior of the top frame segment outside the plurality of substantially horizontal and parallel channels and configured to apply the magnetic damping force through the top frame segment to one or more of the sliding bearings within the substantially horizontal and parallel channels. 8. The sliding door assembly of claim 1, further comprising a second magnet coupled to the door frame and positioned relative to the first display case door and the second display case door such that the second magnet is capable of applying both: the magnetic damping force to the second display case door as the second display case door approaches the closed position, the magnetic damping force opposing the closing force applied by the automatic closure system and damping a closure of the second display case door; andthe magnetic holding force to the first display case door when the first display case door is in the open position, the magnetic holding force opposing the closing force applied by the automatic closure system and holding the first display case door in the open position. 9. The sliding door assembly of claim 1, further comprising one or more latches configured to engage the plurality of display case doors in the open position and to hold the plurality of display case doors in the open position. 10. A sliding door assembly for a refrigerated display case, the sliding door assembly comprising: a door frame comprising a top frame segment defining a front channel and a rear channel substantially parallel to the front channel;a plurality of sliding bearings comprising: a front set of sliding bearings positioned within and supported by the front channel and configured to slide along the top frame segment within the front channel, anda rear set of sliding bearings positioned within and supported by the rear channel and configured to slide along the top frame segment within the rear channel;a plurality of display case doors comprising: a front display case door suspended from the front set of sliding bearings and configured to slide with the front set of sliding bearings along the front channel, anda rear display case door suspended from the rear set of sliding bearings and configured to slide with the rear set of sliding bearings along the rear channel;an automatic closure system coupled to the plurality of display case doors and configured to apply a closing force that automatically returns the plurality of display case doors to a closed position; anda magnet coupled to the door frame and positioned relative to the front set of sliding bearings and the rear set of sliding bearings such that the magnet is configured to apply both: a magnetic damping force to the front set of sliding bearings as the front display case door approaches the closed position, the magnetic damping force opposing the closing force applied by the automatic closure system and damping a closure of the front display case door; anda magnetic holding force to the rear set of sliding bearings when the rear display case door is in the open position, the magnetic holding force opposing the closing force applied by the automatic closure system and holding the rear display case door in the open position. 11. The sliding door assembly of claim 10, wherein the automatic closure system comprises a weight suspended within a side segment of the door frame and coupled to one of the plurality of display case doors via a cable. 12. The sliding door assembly of claim 10, wherein the magnet is fixed to an interior of the top frame segment within the rear channel and configured to apply the magnetic damping force to the front set of sliding bearings within the front channel through a center wall of the top frame segment. 13. The sliding door assembly of claim 10, wherein the magnet is fixed to an exterior of the top frame segment outside the plurality of substantially horizontal and parallel channels and configured to apply the magnetic damping force through the top frame segment to the front set of sliding bearings within the front channel.

이 특허에 인용된 특허 (17)

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특허 상세정보

Sliding door assembly for a refrigerated display case

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Sliding door assembly for a refrigerated display case

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이 특허에 인용된 특허 (17)

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