NL2004471C2 - Power distribution device. - Google Patents

Power distribution device. Download PDF

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Publication number
NL2004471C2
NL2004471C2 NL2004471A NL2004471A NL2004471C2 NL 2004471 C2 NL2004471 C2 NL 2004471C2 NL 2004471 A NL2004471 A NL 2004471A NL 2004471 A NL2004471 A NL 2004471A NL 2004471 C2 NL2004471 C2 NL 2004471C2
Authority
NL
Netherlands
Prior art keywords
cord
power
distribution device
power distribution
housing
Prior art date
Application number
NL2004471A
Other languages
Dutch (nl)
Inventor
Michael Jagt
Original Assignee
Nexus Technology B V
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 Nexus Technology B V filed Critical Nexus Technology B V
Priority to NL2004471A priority Critical patent/NL2004471C2/en
Priority to DE202010007828U priority patent/DE202010007828U1/en
Application granted granted Critical
Publication of NL2004471C2 publication Critical patent/NL2004471C2/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4418—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means
    • B65H75/4428—Arrangements for stopping winding or unwinding; Arrangements for releasing the stop means acting on the reel or on a reel blocking mechanism
    • B65H75/4431—Manual stop or release button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/72—Means for accommodating flexible lead within the holder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/003—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits the coupling part being secured only to wires or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/34—Handled filamentary material electric cords or electric power cables

Landscapes

  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Description

Power Distribution Device
FIELD OF THE INVENTION
The invention relates to a power distribution device.
BACKGROUND OF THE INVENTION
5 Electrical power distribution devices, also known as socket multipliers, are known in the art. A typical power distribution device comprises a power plug, to be plugged into an electrical power supply or socket, a power cord, usually spanning several metres, and connected to the end of the power cord is a unit, comprising several power outlets (typically 4 sockets). A popular type of power distribution device is the cable reel, 10 wherein the power cord can be stored away on a cord reel, and power sockets are integrated in the centre of the cord reel. Although such power distribution devices provide a relatively compact way to store the power cord, the rewinding of the cord on the cord reel after use is rather cumbersome.
15 OBJECT AND SUMMARY OF THE INVENTION
The object of the invention is to provide an improved electrical power distribution device. The invention provides a power distribution device, comprising a housing, provided with multiple power outlets, a retractable power cord electrically connected to the multiple power outlets, wherein the power cord is arranged in the housing on a pivotable cord 2 0 reel for storing the power cord in an at least partially rewound position of the power cord, wherein the cord reel is provided with rewinding means for rewinding the power cord from an extended position towards a rewound position, wherein the cord reel is provided with releasable fixating means, adapted to switch between at least a cable fixing position and a cable releasing position by an operating element, the cable fixing 2 5 position preventing rewinding of the power cord, and the cable releasing position allowing rewinding of the power cord on the cord reel. Such a power distribution is more convenient to use than the known power distribution devices of the cable reel type. During use the power cord can be extracted out of the housing and extended as needed, and the length of the cable extending out of the housing is fixed by the 30 releasable fixating means. After use, the releasable fixing means are manually switched to the cable releasing position, allowing automatic retraction of the power cord by rewinding onto the cord reel. The rewinding means may comprise a spring, but may 2 also be an electrically driven motor. The housing may be partially open but is preferably closed, leaving an opening for at least the power cord and optionally also the power plug connected at the end of the power cord.
5 Preferably, the multiple power outlets are arranged on a side of the housing essentially parallel to the plane of rotation of the cord reel. This configuration allows for a relatively compact design.
It is advantageous if the housing comprises resting means for stably resting the power 10 distribution device on a flat surface. Thus, the device remains stable during use and when stored away.
In a preferred embodiment, the resting means define a plane essentially parallel with the plane of rotation of the cord reel, wherein the power outlets are located on a top side 15 of the housing opposite to the resting means. This provides the most stable configuration, in particular during use. Most preferably, the cord reel is located between the power outlets and the plane defined by the resting means, enabling a very compact configuration.
2 0 In another preferred embodiment, the resting means define a plane essentially perpendicular to the plane of rotation of the cord reel, wherein the power outlets are essentially perpendicular to the resting means. This configuration allows for an easier accessibility of the power outlets. Also, when using straight power plugs in the power outlets, the strain on power cords connected to the device is minimized.
25 It is advantageous if the resting means comprise at least one anti-slip element. This makes the device more stable. The anti-slip element may for instance be a profiled housing part, or rubber pads.
It is preferred if the operating element is arranged to be operated by pressing essentially 30 towards the bottom side. This allows for the best stability when rewinding the power cord.
3
In a preferred embodiment, the housing is wider at the bottom side than at the top side, wherein the power outlets are arranged at the narrower side of the housing. This allows or a greater stability of the device. Also, the wider housing at the bottom side yields more space on the inside of the housing to accommodate the power cord on the reel. It 5 was discovered that having a wider space within the housing near the bottom side decreases the chance of jamming of the power cord during rewinding. In a preferred embodiment, the housing has an essentially frusto-conical or hemispherical shape.
It is preferred if the power outlets are electrically connected to the power cord through sliding electrical contacts on the pivotable cord reel, arranged for rotating of the cord 10 reel without rotating the power outlets. Thus, if external power plugs are connected to the device, the cluttering of power cables during unwinding or rewinding is avoided. The sliding electrical contacts may for instance be electrically conducting brushes or spring elements.
15 In a preferred embodiment, the sliding electrical contacts are arranged to slidingly connect to an inner ring electrode and an outer ring electrode representing the electrical poles. Thus, a reliable electrical connection is ensured in all rotational positions of the cord reel.
2 0 It is advantageous if the rewinding means comprise a clockwork spring. A clockwork spring, which may be incorporated in the cord reel, ensures a reliable source of power for rewinding the cord reel.
In a preferred embodiment, the power cord exits the housing through an aperture in the 2 5 housing. Thus, the cord exit position with respect to the cord reel is controlled, leading to a more reliable unwinding and rewinding process. It is preferred if the aperture is essentially in the plane of rotation of the cord reel.
Preferably, the edge of the aperture is lined with a relatively soft material. Thus, the 3 0 chance of damaging the power cord during unwinding or rewinding is diminished.
In a preferred embodiment, the releasable fixating means comprise at least one stop-motion wheel guiding the power cord and/or the cable reel, wherein in the fixing position the stop-motion wheel allows movement of the cable in the extending direction while the 4 wheel does not rotate in the cable rewinding direction, exerting bias on the cable and/or cable reel to prevent rewinding, and wherein in the cable releasing position the stop motion the stop motion wheel is moved away from the cable and/or the cable reel, lowering the bias. Thus, the fixing position allows unwinding the power cord while 5 resisting retraction of the power cord, while in the released position the power cord may freely rewind until the user decides to halt the rewinding process by switching back to the fixing position, offering an excellent control of the cord extension.
The invention will now be discussed in detail in the following examples.
10
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows an exploded view of a preferred embodiment of a retractable cord power divider according to the invention.
15 Figure 2 shows the preferred embodiment according to figure 1 in the assembled state.
Figure 3 shows a detail of the cord retraction system in the embodiment according to figures 1 and 2.
2 0 Figure 4 shows an alternative embodiment of a retractable cord power divider according to the invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
Figure 1 shows an exploded view of a preferred embodiment of a retractable cord 25 power divider according to the invention. The parts depicted are labelled as follows in Table I:
Table I: Labels of technical parts in figure 1.
Item Part name Item Part name 30 1 ornamental ring 15 seat for insert 2 top cover 16 seat for big and small ring 3 stop-motion wheel core 17 big ring 4 stop-motion wheel 18 small ring 5 5 stop-motion wheel frame 19 touch parcel 6 Rewind Button 20 top plate for rewind 7 Rewind Spring 21 power cord and plug 8 body case 22 bottom plate for rewind 5 9 protect for wire out 23 clockwork spring 10 protect block 24 cover for clockwork spring 11 spring for protect block 25 axes for rewind 12 cover for protect block 26 basal 13 metal insert 1 27 rubber pad 10 14 metal insert 2
The parts shown in figure 1 can be assembled into the device according to the invention according to figure 2.
15 Figure 1 shows the power distributing device in parts, wherein the housing is formed by the body case 8 which is fitted on top of the base plate 26. Within the housing, the power cord 21 can be wound up on a cord reel made up of the upper cord reel part 20 and the lower cord reel part 22. The housing is preferably made out of resins and plastics suitable for electrical applications. The power connector at the end of the cord 2 0 22 can be pulled out of the housing through an aperture in the body case 8, which is lined by the cord protector 9, which has a relatively smooth surface in order to prevent damage to the cord during use. Alternatively, the cord protector may be made of a resilient material such as rubber.
25 The power cord 21 is electrically connected to multiple power outlets provided in at the top cover 2, placed parallel to the plane of rotation of the cord reel in order to allow for a compact design. The top cover 2 bearing the electrical sockets is separate unit, which allows for flexibility at the production stage to easily make an electrical power divider for different types of electrical sockets by replacing only the top cover part. The top cover 30 may be provided with an ornamental ring 1, which may have different colours then the main body 8, which may make it easier to distinguish different power devices, for instance types with different power cords 22 having different lengths.
6
In this embodiment, the top cover 2 does not rotate when the power cord 21 is extended or rewound by rotating the cord reel (20, 21), which is preferable compared to socket rotating designs which may put strain and twisting to electrical cords plugged into the sockets of the power divider, and lead to disorganization of power cords of more then 5 one power cord was plugged into the sockets during unwinding or rewinding of the main power cord 22. In order to ensure a continuous and reliable power supply for the electrical sockets located in the top cover 2 in all rotational positions of the cord reel, the poles of the power cord 21 are connected to sliding contacts 19 located on the top reel part 20. These sliding contacts 19 are in contact with an inner circular contact 18 and an 10 outer circular contact 17, providing an excellent electrical connection to the sockets in the top cover 2 through electrical contact plates 10.
The cord reel (20, 22) is provided with a clockwork spring 23, which is arranged to provide a continuous rotating force on the cord reel in the rewind direction. In order to 15 prevent unwanted rewinding, the cord reel is provided with a stop-motion wheel 4 which is forced against the cord reel by a spring 7, preventing rewinding, but allowing the cord 21 to be pulled out of the case 8 by a user. By pushing the rewind button 6, the stop-motion wheel 4 is moved away from the cord reel, resulting in an automatic rewinding of the cord reel under the forces exerted by the clockwork spring 23.
20
The top of the body case 8 is narrower in diameter than the base plate 26, and has an essentially frusto-conical shape, leading to greater stability. Also, the wider bottom side of the housing leads to a lower chance of the wound-up power cord 21 blocking rotation of the cord reel in case of an irregularities in the rewinding process. The base plate 26 is 25 provided with rubber pads 27 (or other anti-sliding means) in order to prevent sliding of the device on the floor, for instance when the rewind button 6 is pushed by the foot of a user.
Figure 2 shows the preferred embodiment according to figure 1 in the assembled state. 30 The figure shows the housing 8 accommodating the power cord 21 placed horizontally on a flat surface. The power cord 21 is protected by the housing in its retracted state on the cord reel (20, 22). The housing provides an aperture for the rewind button 6 on the top side of the housing, next to the electrical sockets located in the top cover 2, which 7 makes the button 6 easily accessible for operation by hand or foot. The rubber pads 27 on the bottom side of the housing ensure a stable positioning of the device during use.
Figure 3 shows a detail of the cord retraction system in the embodiment according to 5 figures 1 and 2. The spring 7 urges the one-way rotating wheel 4 mounted in its bracket 5 against the top part of the cord reel. The force of the spring 7 is selected to induce enough friction between the cord reel and the wheel 4 to withstand the retracting force of the clockwork spring (not visible in this figure), but still allowing the unrolling the power cord from the reel by hand without exerting excessive force. Pushing the button 6 10 moves the wheel away from the reel, against the bias of the spring. This releases the reel, allowing retraction of the power cord by the force of the clockwork spring 23.
Figure 4 shows an alternative embodiment of a retractable cord power divider according to the invention. This embodiment has a vertical orientation of the cord reel instead of a 15 horizontal orientation, but has a comparable reel functioning and electrical connections on the inside. The button 6 for retracting the cord is mounted on the top of the housing. The advantage of this embodiment compared to the horizontally oriented version shown in figures 1-3 is that the base portion covers a smaller area, although the vertical embodiment is less stable than the horizontal version.

Claims (15)

1. Stroomverdeelinrichting met een intrekbaar stroomsnoer, omvattende - een behuizing voorzien van meerdere stroomuitgangen, 5. een stroomsnoer elektrisch verbonden met de meerdere stroomuitgangen, waarbij het stroomsnoer is aangebracht in de behuizing op een roteerbare snoerhaspel voor het opslaan van het stroomsnoer in een ten minste gedeeltelijk teruggewonden positie van het stroomsnoer, - waarbij de snoerhaspel is voorzien met terugwindmiddelen voor het terugwinden 10 van het stroomsnoer van een uitgetrokken positie naar een teruggewonden positie, - waarbij de snoerhaspel is voorzien van ontgrendelbare fixeermiddelen, ingericht om te schakelen tussen een snoerfixerende positie en een snoervrijlatende positie middels een bedieningselement, waarbij de snoerfixerende positie het 15 terugspoelen van het stroomsnoer voorkomt, en waarbij de snoervrijlatende positie terugspoelen van het stroomsnoer op de snoerhaspel toestaat.A power distribution device with a retractable power cord, comprising - a housing provided with a plurality of power outputs, 5. a power cord electrically connected to the multiple power outputs, the power cord being arranged in the housing on a rotatable cord reel for storing the power cord in an at least one partially wound position of the power cord, - wherein the cord winder is provided with rewinding means for winding the power cord from an extended position to a wound-back position, - wherein the cord winder is provided with unlockable fixing means, adapted to switch between a cord fixing position and a cord-free position by means of an operating element, wherein the cord-fixing position prevents rewinding of the power cord, and wherein the cord-free position allows rewinding of the power cord on the cord reel. 2. Stroomverdeelinrichting volgens conclusie 1, waarbij de meerdere stroomuitgangen zijn ingericht op een zijde van de behuizing in hoofdzaak evenwijdig aan het vlak van 2. rotatie van de snoerhaspel.2. Power distribution device as claimed in claim 1, wherein the multiple current outputs are arranged on one side of the housing substantially parallel to the plane of 2. rotation of the cord reel. 3. Stroomverdeelinrichting volgens conclusie 2, waarbij de behuizing afsteunmiddelen omvat voor het stabiel afsteunen van de stroomverdeelinrichting op een vlak oppervlak. 2 5The power distribution device according to claim 2, wherein the housing comprises support means for stably supporting the power distribution device on a flat surface. 2 5 4. Stroomverdeelinrichting volgens conclusie 3, waarbij de afsteunmiddelen een vlak definiëren in hoofdzaak evenwijdig aan het vlak van rotatie van de snoerhaspel, waarbij de stroomuitgangen zijn gepositioneerd op een bovenzijde van de behuizing tegenoverliggend aan de afsteunmiddelen. 3 04. Power distribution device as claimed in claim 3, wherein the support means define a plane substantially parallel to the plane of rotation of the cord reel, the power outputs being positioned on an upper side of the housing opposite the support means. 3 0 5. Stroomverdeelinrichting volgens conclusie 3 of 4, waarbij de afsteunmiddelen een vlak definiëren in hoofdzaak loodrecht op het vlak van rotatie van de snoerhaspel, waarbij de stroomuitgangen in hoofdzaak loodrecht staan op de afsteunmiddelen.A power distribution device according to claim 3 or 4, wherein the support means define a plane substantially perpendicular to the plane of rotation of the cord reel, the power outputs being substantially perpendicular to the support means. 6. Stroomverdeelinrichting volgens één der conclusies 3-5, waarbij de afsteunmiddelen ten minste één antislipelement omvatten.6. Power distribution device as claimed in any of the claims 3-5, wherein the support means comprise at least one anti-slip element. 7. Stroomverdeelinrichting volgens één der conclusies 3-6, waarbij het 5 bedieningselement is ongericht om geactueerd te worden door te drukken naar de onderzijde.7. Power distribution device as claimed in any of the claims 3-6, wherein the operating element is unfocused to be actuated by pressing downwards. 8. Stroomverdeelinrichting volgens één der voorgaande conclusies, waarbij de behuizing breder is aan de onderzijde dan aan de bovenzijde, waarbij de 10 stroomuitgangen zijn gepositioneerd aan de smallere zijde van de behuizing.8. Power distribution device according to any one of the preceding claims, wherein the housing is wider at the bottom than at the top, wherein the current outputs are positioned on the narrower side of the housing. 9. Stroomverdeelinrichting volgens conclusie 8, waarbij de behuizing een in hoofdzaak frusto-conische of hemisferische vorm heeft.The power distribution device according to claim 8, wherein the housing has a substantially frusto-conical or hemispherical shape. 10. Stroomverdeelinrichting volgens één der voorgaande conclusies, waarbij de stroomuitgangen elektrisch verbonden zijn met het stroomsnoer middels een glijdend elektrisch contact op de roteerbare snoerhaspel, ingericht voor het roteren van de snoerhaspel zonder de stroomuitgangen daarbij te roteren. 2 0A power distribution device according to any one of the preceding claims, wherein the current outputs are electrically connected to the power cord by means of a sliding electrical contact on the rotatable cord winder, adapted to rotate the cord winder without rotating the current outputs thereby. 2 0 11. Stroomverdeelinrichting volgens conclusie 10, waarbij de glijdende elektrische contacten zijn ingericht voor glijdend contact met een binnenste ringelektrode en een buitenste ringelektroden die de elektrische polen representeren.A power distribution device according to claim 10, wherein the sliding electrical contacts are arranged for sliding contact with an inner ring electrode and an outer ring electrodes representing the electric poles. 12. Stroomverdeelinrichting volgens één der voorgaande conclusies, waarbij de 2 5 terugwindmiddelen een klokveer omvatten.12. Power distribution device as claimed in any of the foregoing claims, wherein the recovery means comprise a clock spring. 13. Stroomverdeelinrichting volgens één der voorgaande conclusies, waarbij het stroomsnoer de behuizing verlaat door een opening in de behuizing.A power distribution device according to any one of the preceding claims, wherein the power cord leaves the housing through an opening in the housing. 14. Stroomverdeelinrichting volgens conclusie 13, waarbij de rand van de opening is bekleed met een relatief zacht materiaal.A power distribution device according to claim 13, wherein the edge of the opening is covered with a relatively soft material. 15. Stroomverdeelinrichting volgens één der voorgaande conclusies, waarbij de ontgrendelbare fixeermiddelen ten minste een éénrichtingswiel omvatten dat het stroomsnoer en/of de snoerhaspel geleid, waarbij in de fixeerpositie het éénrichtingswiel 5 beweging van de kapbel toelaat in de uittrekrichting, en het éénrichtingswiel niet roteert in de terugwindrichting, waarbij voorspanning wordt uitgeoefend op het stroomsnoer en/of de snoerhaspel, en waarbij in de snoervrijlatende positie het éénrichtingswiel van het stroomsnoer en/of de snoerhaspel af wordt bewogen, waarbij de voorspanning wordt verminderd.15. Power distribution device as claimed in any of the foregoing claims, wherein the unlockable fixing means comprise at least one one-way wheel which guides the power cord and / or the cable reel, wherein in the fixing position the one-way wheel 5 allows movement of the bell in the extension direction, and the one-way wheel does not rotate in the rewinding direction, wherein bias is applied to the power cord and / or cord reel, and wherein in the cord-free position the one-way wheel is moved away from the power cord and / or cord reel, thereby reducing the bias.
NL2004471A 2010-03-29 2010-03-29 Power distribution device. NL2004471C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL2004471A NL2004471C2 (en) 2010-03-29 2010-03-29 Power distribution device.
DE202010007828U DE202010007828U1 (en) 2010-03-29 2010-06-10 Energy distribution device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2004471 2010-03-29
NL2004471A NL2004471C2 (en) 2010-03-29 2010-03-29 Power distribution device.

Publications (1)

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NL2004471C2 true NL2004471C2 (en) 2011-10-03

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NL2004471A NL2004471C2 (en) 2010-03-29 2010-03-29 Power distribution device.

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NL (1) NL2004471C2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190674U (en) * 1981-05-28 1982-12-03
JPS6064960U (en) * 1983-10-12 1985-05-08 富士電線工業株式会社 Cord winding device
US5180040A (en) * 1990-07-31 1993-01-19 Gold Star Co., Ltd. Automatic electric card rewinding apparatus with contacts for supplying electric power
US20050098405A1 (en) * 2003-11-07 2005-05-12 Chang Kuang P. Power cord winding and releasing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190674U (en) * 1981-05-28 1982-12-03
JPS6064960U (en) * 1983-10-12 1985-05-08 富士電線工業株式会社 Cord winding device
US5180040A (en) * 1990-07-31 1993-01-19 Gold Star Co., Ltd. Automatic electric card rewinding apparatus with contacts for supplying electric power
US20050098405A1 (en) * 2003-11-07 2005-05-12 Chang Kuang P. Power cord winding and releasing device

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Publication number Publication date
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