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US20130127318A1 - Clamshell device - Google Patents

Clamshell device Download PDF

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Publication number
US20130127318A1
US20130127318A1 US13/411,241 US201213411241A US2013127318A1 US 20130127318 A1 US20130127318 A1 US 20130127318A1 US 201213411241 A US201213411241 A US 201213411241A US 2013127318 A1 US2013127318 A1 US 2013127318A1
Authority
US
United States
Prior art keywords
cover
rim
supporting
supporting plate
curvy
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
US13/411,241
Other languages
English (en)
Inventor
Yi-Liang Chen
Wen-Hsien Yen
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.)
Primax Electronics Ltd
Original Assignee
Primax Electronics 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 Primax Electronics Ltd filed Critical Primax Electronics Ltd
Assigned to PRIMAX ELECTRONICS LTD. reassignment PRIMAX ELECTRONICS LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, YI-LIANG, YEN, WEN-HSIEN
Publication of US20130127318A1 publication Critical patent/US20130127318A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/02—Framework
    • B41J29/023—Framework with reduced dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/12—Guards, shields or dust excluders
    • B41J29/13—Cases or covers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges

Definitions

  • the present invention relates to a clamshell device, and more particularly to a clamshell device with a supporting function.
  • a small-sized electronic device with a cover is usually equipped with a mechanism for fixing the cover at a specified angle in order to facilitate the user to use the electronic device.
  • a hinge structure is employed to connect the cover with the base in order to rotate the cover to an open position or a close position relative to the base. Conventionally, when the cover is in the open position, the cover should be supported by one hand of the user in order to smoothly place the paper roll into the internal portion of the base.
  • the hinge device Since the way of supporting the cover by the user's hand is very inconvenient, the hinge device should have a function of fixing the cover at the open position. Moreover, since the angles of uplifting the cover are usually different according to the usual practice of most users, a hinge structure for allowing the cover to be stayed at a plurality of open positions is introduced into the market in order to comply with the diversified requirements.
  • FIG. 1 is a schematic exploded view illustrating a conventional hinge assembly, which is disclosed in Taiwanese Patent No. M388820.
  • the hinge assembly 1 comprises a shaft 11 , a base bracket 12 , a first pressing block 13 , a second pressing block 14 , an elastic member 15 , a fastener 16 , and a cover bracket 17 .
  • the shaft 11 comprises a fixing part 11 a and a thread part 11 b .
  • the base bracket 12 comprises a perforation 12 a and two concave structures 12 b .
  • the first pressing block 13 has an axial hole 13 a and two convex structures 13 b .
  • the second pressing block 14 has a through-hole 14 a .
  • the elastic member 15 comprises a plurality of resilient discs.
  • the cover bracket 17 has an aperture 17 a.
  • the cover bracket 17 is fixed on an upper cover (not shown). Then, the aperture 17 a of the cover bracket 17 is connected to the fixing part 11 a of the shaft 11 . Then, the base bracket 12 is fixed on a base (not shown). In addition, the base bracket 12 is pivotally connected to the shaft 11 through the perforation 12 a . Then, the first pressing block 13 is pivotally connected to the shaft 11 through the axial hole 13 a , and the two convex structures 13 b of the first pressing block 13 are respectively embedded into the two concave structures 12 b of the base bracket 12 .
  • the second pressing block 14 is sheathed around the shaft 11 through the through-hole 14 a .
  • the first pressing block 13 and the second pressing block 14 have complementary convex structures and concave structures at the facing surfaces. Consequently, when the second pressing block 14 is rotated in a specified direction relative to the first pressing block 13 , the first pressing block 13 and the second pressing block 14 are distant from each other. Then, the elastic member 15 is sheathed around the shaft 11 and sustained against the second pressing block 14 . Afterwards, the fastener 16 is engaged with the thread part 11 b of the shaft 11 . Consequently, the fastener 16 is fixed on the shaft 11 to prevent detachment of any component which is sheathed around the shaft 11 .
  • the second pressing block 14 is in close contact with the first pressing block 13 . Meanwhile, the second pressing block 14 is no longer sustained against the elastic member 15 .
  • Taiwanese Patent No. M388820 still has some drawbacks.
  • the structure of the hinge assembly 1 is complicated, it is difficult to assemble the hinge assembly 1 .
  • the hinge assembly 1 will malfunction. Under this circumstance, the risk of resulting in damage of the hinge assembly 1 is increased, and the difficulty of maintaining the hinge assembly 1 is raised. Therefore, there is a need of providing an improved hinge assembly to obviate the drawbacks encountered from the prior art.
  • the present invention provides a clamshell device with a simplified structure.
  • a clamshell device in accordance with an aspect of the present invention, there is provided a clamshell device.
  • the clamshell device includes a cover, a supporting plate, and a base.
  • the cover is disposed over the base.
  • the cover has a notch, and the notch has a friction edge.
  • the supporting plate is disposed on the base and aligned with the notch, and includes a curvy rim, a first supporting rim and an elongated groove.
  • the elongated groove is formed in the supporting plate and located beside the curvy rim.
  • the first supporting rim is extended from a first end of the curvy rim and connected to the base, so that the supporting plate is fixed on the base.
  • the cover When the cover is in a close status, the supporting plate is penetrated through the notch, so that the base is covered by the cover.
  • the friction edge of the notch When the cover is at a supporting angle rotated relative to the base, the friction edge of the notch is pressed against the curvy rim of the supporting plate to deform the curvy rim toward the elongated groove, so that the cover is stayed at the supporting angle.
  • the supporting plate is flexible.
  • the supporting plate further includes a second supporting rim and a pivotal hole.
  • the second supporting rim is extended from a second end of the curvy rim.
  • the pivotal hole is located at a junction between the first supporting rim and the second supporting rim.
  • the cover further includes a shaft. The shaft is located beside the notch of the cover and pivotally coupled to the pivotal hole of the supporting plate, so that the cover is rotatable relative to the base.
  • the supporting plate further includes a lateral post.
  • the lateral post is located at a junction between the curvy rim and the second supporting rim.
  • a lateral slant surface is located at an inner wall of the notch.
  • the friction edge of the notch is not pressed against the curvy rim of the supporting plate, so that the cover is not supported by the supporting plate.
  • the supporting plate further includes at least one salient, which is formed on the curvy rim. During the cover is rotated, the salient provides a tactile feel.
  • FIG. 1 is a schematic exploded view illustrating a conventional hinge assembly
  • FIG. 2 is a schematic exploded view illustrating a clamshell device according to a first embodiment of the present invention and taken along a first viewpoint;
  • FIG. 3 is a schematic exploded view illustrating the clamshell device according to the first embodiment of the present invention and taken along a second viewpoint;
  • FIG. 4 is a schematic side view illustrating the clamshell device according to the first embodiment of the present invention, in which the cover is in a close status;
  • FIG. 5 is a schematic perspective view illustrating the clamshell device according to the first embodiment of the present invention, in which the cover is at a first supporting angle relative to the base;
  • FIG. 6 is a schematic perspective view illustrating the clamshell device according to the first embodiment of the present invention, in which the cover is at a second supporting angle relative to the base;
  • FIG. 7 is a schematic exploded view illustrating a clamshell device according to a second embodiment of the present invention and taken along a first viewpoint;
  • FIG. 8 is a schematic exploded view illustrating the clamshell device according to the second embodiment of the present invention and taken along a second viewpoint;
  • FIG. 9 is a schematic perspective view illustrating the clamshell device according to the second embodiment of the present invention, in which the cover is at a first supporting angle relative to the base;
  • FIG. 10 is a schematic exploded view illustrating a clamshell device according to a third embodiment of the present invention and taken along a first viewpoint;
  • FIG. 11 is a schematic exploded view illustrating the clamshell device according to the third embodiment of the present invention and taken along a second viewpoint.
  • a clamshell device with a cover wherein the cover is rotatable relative to a base and can be stayed at one of a plurality of positions.
  • FIG. 2 is a schematic exploded view illustrating a clamshell device according to a first embodiment of the present invention and taken along a first viewpoint.
  • FIG. 3 is a schematic exploded view illustrating the clamshell device according to the first embodiment of the present invention and taken along a second viewpoint.
  • the clamshell device 2 comprises a cover 21 , a supporting plate 22 , and a base 23 .
  • the cover 21 comprises a notch 211 and a shaft 212 .
  • the notch 211 has a friction edge 211 a and a lateral slant surface 211 b .
  • the lateral slant surface 211 b is located at an inner wall of the notch 211 .
  • the shaft 212 is located beside the notch 211 .
  • the supporting plate 22 comprises a curvy rim 221 , a first supporting rim 222 , a second supporting rim 223 , a pivotal hole 224 , an elongated groove 225 , and a lateral post 226 .
  • the first supporting rim 222 is extended from a first end of the curvy rim 221 .
  • the second supporting rim 223 is extended from a second end of the curvy rim 221 .
  • the pivotal hole 224 is located at the junction between the first supporting rim 222 and the second supporting rim 223 .
  • the elongated groove 225 is formed in the supporting plate 22 and located beside the curvy rim 221 .
  • the lateral post 226 is located at the junction between the curvy rim 221 and the second supporting rim 223 .
  • the supporting plate 22 is flexible.
  • the first supporting rim 222 of the supporting plate 22 is connected to the base 23 , so that the supporting plate 22 is fixed on the base 23 .
  • the cover 21 is placed over the base 23 , and the shaft 212 of the cover 21 is pivotally coupled to the pivotal hole 224 of the supporting plate 22 . Consequently, the cover 21 is rotatable relative to the base 23 .
  • the notch 211 of the cover 21 is aligned with the supporting plate 22 . Consequently, upon rotation of the cover 21 , the supporting plate 22 is allowed to be penetrated through the notch 211 .
  • FIG. 4 is a schematic side view illustrating the clamshell device according to the first embodiment of the present invention, in which the cover is in a close status.
  • FIG. 5 is a schematic perspective view illustrating the clamshell device according to the first embodiment of the present invention, in which the cover is at a first supporting angle relative to the base.
  • FIG. 6 is a schematic perspective view illustrating the clamshell device according to the first embodiment of the present invention, in which the cover is at a second supporting angle relative to the base.
  • the base 23 is covered by the cover 23 .
  • the supporting plate 22 is penetrated through the notch 211 .
  • the friction edge 211 a of the notch 211 is pressed against the curvy rim 221 of the supporting plate 22 , so that the curvy rim 221 is deformed toward the elongated groove 225 . Due to the flexible restoring force of the curvy rim 221 , the interference between the curvy rim 221 and the friction edge 211 a provides a friction force to allow the cover 21 to be fixed at the first supporting angle.
  • the friction edge 211 a of the notch 211 is also pressed against the curvy rim 221 . Consequently, the friction force generated from the interference between the curvy rim 221 and the friction edge 211 a also allows the cover 21 to be stayed at the second supporting angle. That is, as long as the cover 21 is opened, the friction edge 211 a of the notch 211 is pressed against the curvy rim 221 of the supporting plate 22 , and thus the cover 21 can be supported and fixed by the supporting plate 22 .
  • the lateral post 226 of the supporting plate 22 is pushed by the lateral slant surface 211 b within the notch 211 of the cover 21 , so that the supporting plate 22 is moved toward the external side of the cover 21 . Meanwhile, due to the flexible restoring force of the supporting plate 22 , the interference between the lateral post 226 and the lateral slant surface 211 b provides another friction force to facilitate the cover 21 to be fixed at any supporting angle more stably.
  • the distance between the curvy rim 221 and the pivotal hole 224 from a supporting point x (see FIG. 6 ) to the first supporting rim 222 is shorter than the distance between the curvy rim 221 and the pivotal hole 224 from the supporting point x to the second supporting rim 223 . Consequently, when the cover 21 is rotated relative to the base 23 to the region between the supporting point x and the close position (i.e. at the non-supporting angle), the friction edge 211 a of the notch 211 of the cover 21 is no longer pressed against the curvy rim 221 of the supporting plate 22 , the cover 21 fails to be supported and fixed by the supporting plate 22 .
  • FIG. 7 is a schematic exploded view illustrating a clamshell device according to a second embodiment of the present invention and taken along a first viewpoint.
  • FIG. 8 is a schematic exploded view illustrating the clamshell device according to the second embodiment of the present invention and taken along a second viewpoint.
  • the clamshell device 2 ′ comprises a cover 21 ′, a supporting plate 22 ′, and a base 23 ′.
  • the cover 21 ′ comprises a notch 211 ′ and the shaft 212 ′.
  • the notch 211 ′ has a friction edge 211 a ′ and a lateral slant surface 211 b ′.
  • the lateral slant surface 211 b ′ is located at an inner wall of the notch 211 ′.
  • the shaft 212 ′ is located beside the notch 211 ′ of the cover 21 ′.
  • the supporting plate 22 ′ comprises a curvy rim 221 ′, a first supporting rim 222 ′, a second supporting rim 223 ′, a pivotal hole 224 ′, an elongated groove 225 ′, and a lateral post 226 .
  • the first supporting rim 222 ′ is extended from a first end of the curvy rim 221 ′.
  • the second supporting rim 223 ′ is extended from a second end of the curvy rim 221 ′.
  • the pivotal hole 224 ′ is located at the junction between the first supporting rim 222 ′ and the second supporting rim 223 ′.
  • the elongated groove 225 ′ is formed in the supporting plate 22 ′ and located beside the curvy rim 221 ′.
  • the lateral post 226 ′ is located at the junction between the curvy rim 221 ′ and the second supporting rim 223 ′.
  • the supporting plate 22 ′ is flexible.
  • the assembling process and operating principle of the clamshell device of the second embodiment are similar to those of the first embodiment, and are not redundantly described herein.
  • the clamshell device 2 ′ of the second embodiment is distinguished from the clamshell device 2 of the first embodiment in that the distance between the curvy rim 221 ′ and the pivotal hole 224 ′ of the supporting plate 22 ′ from the second supporting rim 223 ′ to the first supporting rim 222 ′ is kept unchanged.
  • FIG. 9 is a schematic perspective view illustrating the clamshell device according to the second embodiment of the present invention, in which the cover is at a first supporting angle relative to the base. Since the distance between the curvy rim 221 ′ and the pivotal hole 224 ′ of the supporting plate 22 ′ is kept unchanged, the friction edge 211 a ′ of the notch 211 ′ can be pressed against the curvy rim 221 ′ of the supporting plate 22 ′ whenever the cover 21 ′ is opened at any angle.
  • the curvy rim 221 ′ is deformed toward the elongated groove 225 ′, and the interference between the curvy rim 221 ′ and the friction edge 211 a ′ provides a friction force to allow the cover 21 ′ to be fixed at any supporting angle.
  • FIG. 10 is a schematic exploded view illustrating a clamshell device according to a third embodiment of the present invention and taken along a first viewpoint.
  • FIG. 11 is a schematic exploded view illustrating the clamshell device according to the third embodiment of the present invention and taken along a second viewpoint.
  • the clamshell device 3 comprises a cover 31 , a supporting plate 32 , and a base 33 .
  • the cover 31 comprises a notch 311 and a shaft 312 .
  • the notch 311 has a friction edge 311 a and a lateral slant surface 311 b .
  • the lateral slant surface 311 b is located at an inner wall of the notch 311 .
  • the shaft 312 is located beside the notch 311 .
  • the supporting plate 32 comprises a curvy rim 321 , a first supporting rim 322 , a second supporting rim 323 , a pivotal hole 324 , an elongated groove 325 , a lateral post 326 , and a salient 327 .
  • the first supporting rim 322 is extended from a first end of the curvy rim 321 .
  • the second supporting rim 323 is extended from a second end of the curvy rim 321 .
  • the pivotal hole 324 is located at the junction between the first supporting rim 322 and the second supporting rim 323 .
  • the elongated groove 325 is formed in the supporting plate 32 and located beside the curvy rim 321 .
  • the lateral post 326 is located at the junction between the curvy rim 321 and the second supporting rim 323 .
  • the salient 327 is formed on the curvy rim 321 .
  • the supporting plate 32 is flexible.
  • the assembling process and operating principle of the clamshell device of the second embodiment are similar to those of the first embodiment, and are not redundantly described herein.
  • the clamshell device 3 of the third embodiment is distinguished from the clamshell device 2 of the first embodiment in that the salient 327 is formed on the curvy rim 321 of the supporting plate 32 .
  • a plurality of salients 327 are formed on the curvy rim 321 of the supporting plate 32 for facilitating the user to clearly realize that the original supporting angle of the cover 31 is switched to another supporting angle.
  • the notch is located at a single side of the cover, and the supporting plate is located at a single side of the base.
  • the clamshell device may comprise two notches and two supporting plates, wherein the two notches are located at both sides of the cover and the two supporting plates are located at both sides of the base. In such way, the cover may be stayed at one of a plurality of positions.
  • the cover since the cover has the notch with the friction edge and the supporting plate has the curvy rim and the elongated groove, the cover is rotatable relative to the base and fixed at one of a plurality of supporting angles.
  • the clamshell device of the present invention is capable of fixing the cover at any supporting angle by forming a notch in a cover and installing a supporting plate on a base.
  • the clamshell device has simplified structure and can be easily applied to various machines.
  • the process of maintaining the clamshell device is very easy by simply replacing the supporting plate with a new.
  • the supporting plate may be replaced by the user himself (or herself). Consequently, the process of maintaining the clamshell device is time-saving, and the use life of the machine is prolonged.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Pivots And Pivotal Connections (AREA)
US13/411,241 2011-11-18 2012-03-02 Clamshell device Abandoned US20130127318A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW100142323 2011-11-18
TW100142323A TWI449491B (zh) 2011-11-18 2011-11-18 掀蓋之支撐裝置

Publications (1)

Publication Number Publication Date
US20130127318A1 true US20130127318A1 (en) 2013-05-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
US13/411,241 Abandoned US20130127318A1 (en) 2011-11-18 2012-03-02 Clamshell device

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US (1) US20130127318A1 (zh)
TW (1) TWI449491B (zh)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130099641A1 (en) * 2011-10-25 2013-04-25 6251374 Canada Inc. Lockout Cabinet
US20130314721A1 (en) * 2012-05-25 2013-11-28 Kenneth Colonel Printer with print frame interlock and adjustable media support
US20150334852A1 (en) * 2014-05-14 2015-11-19 Boe Technology Group Co., Ltd. Packaging Box for an Electronic Device
JP2017149080A (ja) * 2016-02-26 2017-08-31 セイコーエプソン株式会社 記録装置、画像読取装置
CN107428184A (zh) * 2015-03-20 2017-12-01 富士通电子零件有限公司 打印机
US10321592B2 (en) * 2016-04-22 2019-06-11 Phoenix Contact Gmbh & Co. Kg Electronics housing
US11371738B2 (en) * 2019-01-09 2022-06-28 Johnson Controls Tyco IP Holdings LLP Enclosure for a controller of an HVAC system
US20230314999A1 (en) * 2022-03-29 2023-10-05 Kyocera Document Solutions Inc. Image forming apparatus capable of stopping access opening closure hinge-mounted to body housing in different open positions

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1326333A (en) * 1919-02-06 1919-12-30 Leo Di Rebaylio Adjustable cover for boxes.
US6986434B1 (en) * 2002-07-25 2006-01-17 Silgan Plastics Corporation Container closure with hinged lid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239093A (en) * 1979-06-01 1980-12-16 Samsonite Corporation Luggage case with brace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1326333A (en) * 1919-02-06 1919-12-30 Leo Di Rebaylio Adjustable cover for boxes.
US6986434B1 (en) * 2002-07-25 2006-01-17 Silgan Plastics Corporation Container closure with hinged lid

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130099641A1 (en) * 2011-10-25 2013-04-25 6251374 Canada Inc. Lockout Cabinet
US8910498B2 (en) * 2011-10-25 2014-12-16 6251374 Canada Inc. Lockout cabinet
US20130314721A1 (en) * 2012-05-25 2013-11-28 Kenneth Colonel Printer with print frame interlock and adjustable media support
US8882374B2 (en) * 2012-05-25 2014-11-11 Datamax—O'Neil Corporation Printer with print frame interlock and adjustable media support
US20150334852A1 (en) * 2014-05-14 2015-11-19 Boe Technology Group Co., Ltd. Packaging Box for an Electronic Device
CN107428184A (zh) * 2015-03-20 2017-12-01 富士通电子零件有限公司 打印机
EP3272547A4 (en) * 2015-03-20 2018-11-07 Fujitsu Component Limited Printer
JP2017149080A (ja) * 2016-02-26 2017-08-31 セイコーエプソン株式会社 記録装置、画像読取装置
US10321592B2 (en) * 2016-04-22 2019-06-11 Phoenix Contact Gmbh & Co. Kg Electronics housing
US11371738B2 (en) * 2019-01-09 2022-06-28 Johnson Controls Tyco IP Holdings LLP Enclosure for a controller of an HVAC system
US20230314999A1 (en) * 2022-03-29 2023-10-05 Kyocera Document Solutions Inc. Image forming apparatus capable of stopping access opening closure hinge-mounted to body housing in different open positions
US11934139B2 (en) * 2022-03-29 2024-03-19 Kyocera Document Solutions Inc. Image forming apparatus capable of stopping access opening closure hinge-mounted to body housing in different open positions

Also Published As

Publication number Publication date
TW201322865A (zh) 2013-06-01
TWI449491B (zh) 2014-08-11

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Legal Events

Date Code Title Description
AS Assignment

Owner name: PRIMAX ELECTRONICS LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHEN, YI-LIANG;YEN, WEN-HSIEN;REEL/FRAME:027800/0062

Effective date: 20120301

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION