CN1218456C - Miniature retractable cord reel - Google Patents
Miniature retractable cord reel Download PDFInfo
- Publication number
- CN1218456C CN1218456C CN99815718XA CN99815718A CN1218456C CN 1218456 C CN1218456 C CN 1218456C CN 99815718X A CN99815718X A CN 99815718XA CN 99815718 A CN99815718 A CN 99815718A CN 1218456 C CN1218456 C CN 1218456C
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- Prior art keywords
- cable
- reel
- clockwork spring
- retractable
- inner chamber
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- Expired - Lifetime
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- 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
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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/15—Protecting or guiding telephone cords
-
- 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
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
- Headphones And Earphones (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
A cord reel device (1) for connecting a signal source (A) to a remote device (B, C) comprises a spool (2) rotatable on an arbor (18), the spool (2) having an inner chamber (6) and an outer trough (8). A retractable cord (10) is removably held in the trough (8). A spring (220) for urging the rotation of the spool (2) in a direction to retract the cord (10) is held in the inner chamber (6). The inner cable (24) is electrically connected to the retractable cord (10). The cord reel (1) of the invention may preferably include EMI-RFI shielding (112), and may find particular utility in applications requiring a substantially miniature cord reel, such as with a cellular telephone or the like.
Description
Technical field
The present invention relates to retractable cable reel arrangement.Specifically, the present invention relates to the undersized retractable cord reel device that uses for handheld electronic apparatus (for example cell phone etc.).
Background technology
Retractable cable reel arrangement can be used for providing and a cable that element is connected with another element of automatically regaining in will installing.This connection can be the connection between the electronic device, for example, as the occasion at a small-sized honeycomb phone, can use a retractable cable drum that a microphone is connected with the base of phone with receiver or headphone herein.
Most cable drum all comprises a reel that the rotation of a retractable cable is installed on it.Some one type of prior art syringe provides electrically contacting of rotating between reel and reel outer cover or base element.In the application scenario of electronic device, particularly those relate to the occasion of little current signal, the motion contact may cause static with other undesirable signal corruption.In addition, contact making device is that the quality of very short-life electric contact can be owing to wear and tear and to reduce.
A method that solves the shortcoming of rotary contact is that second cable (being generally flat cable) is provided in cable drum, makes cable drum enlarge along with the folding and unfolding of retractable cable and recovery and dwindles.For example, can check the United States Patent (USP) 5,094,396 of Paul C.Burke..But such cable drum uses for compact electronic device (for example cell phone), and its size may be too big.Say in Burke 396 patents, to have a plurality of retractable cables that are used for, expandable cable, the compartment of clockwork spring and ratchet in the disclosed reel exactly.Thereby the size of outer cover is just quite big, and it is not suitable for incorporating in the small-sized electronic installation (for example cell phone).
In addition, many prior art constructions can not suitably be handled the bigger stress on the movement parts that acts on this little reel.Because the earphone of phone is pulled up from phone with hand, thereby may cause very big stress.Repeatedly between the operating period, this stress usually can cause the minor diameter cable (for example Litz line) that uses and the inefficacy that is electrically connected or the mechanical breakdown of other elements in the reel device of prior art.Since require the size of reel little and require the in light weight of cable when using for earphone and/or microphone, flexible good, so use size bigger, more durable cable also is unpractiaca.
In addition, the cable reel arrangement that is suitable for many prior aries of using for the compact electronic device occasion can not be avoided disturbing as electric signal provides adequate shielding.The microphone of low pressure and the babyphone of earphone etc. are especially severes to this problem for using very.Unsuitable shielding will cause cross-talk and other electronic noise.The minor diameter cable of many prior art constructions, little cable drum and little cable outer cover have all been sacrificed adequate shielding for compact dimensions.
Therefore, for cable reel arrangement, exist an open question, promptly it can be fit to use the various real needs that proposed with compact electronic device (for example cell phone etc.).
Summary of the invention
An object of the present invention is to provide a kind of cable reel arrangement of compact design.
Another object of the present invention provides a kind of durable cable reel arrangement with improved fatigue resistance.
Another purpose of the present invention provides a kind of cable reel arrangement that electronic jamming is had effective shielding.
Retractable cord reel of the present invention generally includes an outer cover or a base plate that is supporting an axle, and one is installed in rotation on the reel on the axle, and one remains on the retractable cable on the reel, and one is used for making reel to rotate so that the device of folding and unfolding cable.Reel has an annular wall that defines an inner chamber and an outer cable groove.Retractable cable remains in the reel outer cable groove.But first end of folding and unfolding cable is near this annular wall, but its other end folding and unfolding ground is protruding from reel.Draw off gear preferably includes a clockwork spring that is wound on spirally in the reel inner chamber.Article one, inside cable also is contained in the inner chamber of reel, and reels spirally with this clockwork spring.One end of inside cable is connected with retractable cable conduction ground, and its second end is fixed in the center of reel.
A most preferred embodiment of the present invention is useful for a cellular base or source device being connected on the remote equipment (for example an earphone and microphone).In this embodiment, the phone base provides an outer cover that is used for reel of the present invention.Axle is installed on the outer cover or is contained on the interior base plate of this outer cover.Reel is installed in rotation on the axle.Outer cover has a radial hole, and an end of retractable cable can pass this hole.One ratchet mechanism also can remain in outer cover or the base plate, so that limit the rotation of reel selectively.Though wishing has a ratchet, it is not absolute demand.
Retractable cable comprises many leads, and the lead (for example phone wire) in this lead is surrounded by an electromagnetic screen covert at least.These many leads are covered by a reinforcing fibre layer successively.This reinforcing fibre (preferably nylon braid) is connected on the reel with mechanical means, provides one can make inner lead not be subjected to the fixedly connected of mechanical stress thus.Like this, just can use a small dimension lead (for example Litz line) and do not have the danger of unsuitable inefficacy.Therefore, this retractable cable has desirable quality, comprises less diameter, and good is flexible, lighter weight, and good tensile.
Clockwork spring preferably is connected with axle with its first end, is connected with reel with its second end, as the annular wall that inner chamber and outer cable groove are separated.Clockwork spring is reeled in this wise, make when retractable cable when reel is regained, it can be set up and storage power.When discharging cable, clockwork spring will make reel rotate along the direction of twisted and released of the cable.
An inside cable is wound in the inner chamber of preferred cable drum embodiment of the present invention spirally with clockwork spring.This preferred inside cable comprises one or more source device (for example base of phone) but the lead that is electrically connected mutually with the lead of folding and unfolding cable.Source device directly is connected on the retractable cable, has avoided the intermittent interruption of the issuable signal in motion contact of use in the prior art thus.Got rid of for the needs of chamber or other additional space independently with clockwork spring coiling inside cable.Inside cable can comprise a flat ribbon cable, a ribbon conductor, the lead that several are independent or other structure.Inside cable can be connected on the clockwork spring, perhaps can reel individually with clockwork spring.Under any circumstance, the lead of inside cable all should insulate with clockwork spring.
A preferred inside cable comprises many leads that are contained on the clockwork spring, and this clockwork spring has the insulating barrier between clockwork spring and lead.The lead of inside cable preferably includes thin conductive strips, for example metal tape.Conductive strips can be thin metal foils, perhaps can make by be coated with or stamp electric conducting material on a plastic layer or other insulating barriers.Lead, the assembly of insulating barrier and clockwork spring can be made in a different manner.For example, the conductive strips of a plurality of each intervals can be sandwiched between the two layers of insulation material (for example mylar), and then are bonded on this clockwork spring.Another kind of alternative structure comprises that one is bonded in the insulation material layer on the clockwork spring, a plurality ofly is bonded in this lead that separates each other above insulation material layer, and an insulating coating that is applied on the top of lead.The 3rd example comprises that one is bonded in the insulation material layer on the clockwork spring, a plurality of leads that separate each other that are bonded on this insulating barrier, and an insulating coating that is applied on the lower surface of clockwork spring.The additive method that makes the insulation of lead and clockwork spring will be for will being fully aware of those of ordinary skill in the art.
The reel of preferred cable drum embodiment of the present invention and/or outer cover and base plate all shield.This shielding is a nickel coating or the coating that electromagnetic interference/radio frequency interference (" EMI-RFI ") shielding can be provided preferably.As mentioned above, retractable cable has a screen around at least one lead equally.But inside cable does not then need to have independent shielding, because it is installed in the inner chamber, thereby can pass through the metal clockwork spring, and the coating of drum wall and/or outer cover and base plate shields.
By the retractable cable of compactness, inside cable, and the cramped construction of other elements of the reel of the present invention space of realizing total effect of saving is that the reel size of the compactness an of the best has been created condition.Preferred reel has one less than 4cm (1
1/
2Inch) diameter and a thickness less than about 2cm (3/4 inch), and preferably can have thickness less than 1cm (3/8 inch).
Important feature disclosed in this invention has been stated in top summary quite widely, so that can understand detailed description subsequently better, and is convenient to estimate better the contribution of the present invention to the present technique field.Certainly, some additional features of the present disclosure will be described below, and they also will constitute the theme of presents appending claims.In this respect, should be understood that intention of the present disclosure is not that its application is subjected to by following detailed description or by the restriction of the details of shown structure of accompanying drawing and configuration explaining before several embodiment of the present disclosure.As to understand those skilled in the art, the present invention can have other embodiment, and can implement in various mode.In addition, it is also understood that Chinese idiom used herein and term only are in order to illustrate, rather than restriction.
Description of drawings
Fig. 1 is the plane graph of the composite set of a cell phone and earphone and microphone.
Fig. 2 is the longitudinal section view by a decomposition that most preferred embodiment intercepted of the present invention.
Fig. 3 is an axial, cross-sectional view of reel of the present invention.
Fig. 4 is the sectional view of a retractable cable of the best of the present invention.
Fig. 5 is the sectional view of a best clockwork spring of the present invention and inside cable.
Fig. 6 is the elevation view of a headphone and source device.
Embodiment
Refer now to accompanying drawing, Fig. 1 shows the base A of the cellular telephone of a routine, earphone B and microphone C.The base A of cellular telephone only is an example of source device.Other source device can comprise for example tape recorder, small electrical phonograph or broadcast receiver.Equally, earphone B and microphone C also only are the examples of RTU (remote terminal unit).Other RTU (remote terminal unit) can comprise for example stereophone.Cable drum 1 of the present invention is installed in the base A.Article one, retractable cable 10 is connected to source device A on RTU (remote terminal unit) B and the C.Perhaps, depend on the concrete shape of specific RTU (remote terminal unit), cable drum can be entrained by RTU (remote terminal unit), and retractable cable can provide the connection to source device.In fact, cable drum of the present invention has been small enough to be installed in the conventional stereophone.Fig. 6 shows the cable drum of the present invention 1 that is installed in the earphone D.This stereophone has an earphone headring E and at least one earphone F.Earphone F is equipped with a loud speaker G.Retractable cable 10 is connected loud speaker G on the source device H.Other application of cable drum of the present invention will be fully aware of for those skilled in the art.The cell phone that herein is specifically related to and earphone only are in order to illustrate, rather than restriction.
Fig. 2 and 3 more specifically shows cable drum 1 of the present invention.This cable drum comprises a reel 2, retractable cable 10 and inside cable 24.This reel has an annular wall 4 that defines an inner chamber 6 and an outer cable groove 8.Groove 8 can comprise a chamber, and the chamber perhaps is used for storing other volume spaces of retractable cable 10.About one meter long cable can be contained in the groove 8.Groove 8 shown in the figure has the sidewall perpendicular to annular wall 4, but these sidewalls also can have other shape.Groove 8 opens wide in its radially outside end, but also can it partially or completely be sealed by a cover (or other similar things).Being connected between inner chamber 6 and outer cable groove 8 is convenient in hole 12 in the annular wall 4.Reel 2 also comprises sidewall 30 and 32 radially.Perhaps, reel 2 can comprise the spoke (or other similar things) along the side of inner chamber 6 that is used for replacing sidewall.After installing clockwork spring 22 and inside cable 24, a cover plate 33 is loaded onto, so that cover inner chamber 6.This cover plate can be fixed with a snap ring as shown in the figure, or preferably, can produce distortion by the several adjacent regions that make reel and this plate for good and all is fixed on this reel on the edge of cover plate.
Cable drum 1 preferably can comprise an outer cover 14 and a base plate 16.This outer cover and or base plate can be wherein or the source device of cable drum of the present invention is housed or the part of RTU (remote terminal unit) on it.An axle 18 is fixed on this outer cover.This axle can be a main shaft, wheel hub, axle or other devices of reel 2 can be installed on it rotationally.Perhaps, this axle can be fixed on this outer cover.As long as reel can support rotationally, outer cover, the concrete shape of base plate and axle is also not really important.Outer cover 14 has a radial hole 20 and the axial hole 23 as the passage of inside cable 24 as the passage of an end of retractable cable 10.Perhaps, inside cable 24 can withdraw from this reel by an axial groove in base plate 16.Another alternative plan is, inside cable is stopped at the central axis place of (or approaching) reel or withdraws from.The cable or the electric installation that should be appreciated that other also can be used for being connected of inside cable and source device.For the those of ordinary skill in the present technique field will be that open-and-shut all the above and other alternative plans are all included by the appended claims.
Cable drum of the present invention comprises and is used for making reel 2 to rotate so that the device of folding and unfolding cable 10.This cable reel installation can comprise any known tumbler, comprises clockwork spring, wind, motor and other devices known in the prior art.There is shown a kind of preferred clockwork spring 22.Clockwork spring 22 be installed in the inner chamber and reeled spirally and be fixed on the axle 18 on.Preferred clockwork spring 22 can be made by spring steel by known technology, but other metal and even polymeric material also can use.
Inside cable 24 is coiled in the inner chamber 6 spirally.In this most preferred embodiment, inside cable 2 usefulness clockwork springs 22 are reeled spirally.Inside cable preferably is fixed on the clockwork spring.Perhaps, it can be reeled with clockwork spring 22, but not fixed thereon.One end of inside cable 24 is connected on the retractable cable 10 conductively by passage 12, and its second end 26 is withdrawed from reel 2 vertically in axle 18 or near it.As mentioned above, second end 26 of inside cable is connected with source device.
A kind of coating of conduction of the RMI-RFI of being used for shielding or coating (preferably nickel coating) can randomly be applied to reel and/or cover, so that shield with inner chamber 6.Screen is connected on the clockwork spring 22 conductively by axle 18 and annular wall 4.Perhaps, reel and/or cover and base plate can be made by metal or other electric conducting material, just can not need the coating or the coating that conduct electricity thus.The EMI-RFI shielding is sought after for some application scenario (for example microphone signal of low pressure).But, then do not need shielding for other occasion (for example earphone of Fig. 6).The present invention by the appended claims defined then comprises shielding and the two kinds of situations of retractable cable drum that do not shield.
A ratchet can randomly be set, so that stop the rotation of reel 2 selectively.This ratchet can comprise the ratchet and the spring 29 that are pivotably mounted on the base plate 16.Reel 2 is provided with several otch 82.Spring 29 is biased on the ratchet pawl 28, and it is meshed with otch 82, so that stop the rotation of reel 2 along the direction of twisted and released of the cable selectively.Being provided with one is used for the release lever (not shown) of pawl 28 from otch 82 disengagements, so that make spring rotate this reel along the direction of twisted and released of the cable.Ratchet herein only is the example of a suitable ratchet.Other also can use at the well-known ratchet mechanism in present technique field.In addition, though this ratchet is desirable in the major applications occasion, it is not absolute demand, because the present invention can work under the situation without any ratchet.
Fig. 4 is a sectional view that is intercepted by retractable cable 10.Retractable cable 10 preferably includes the inside conductor 50 of the independent insulation more than two.At least one lead in this lead is preferably shielded by a conductive layer 52.An outer reinforced layer 54 surrounds these leads.Screen 52 preferably includes a copper braid.Reinforced layer 54 preferably is made up of the knit nylon layer, so that make its intensity height, size is little and in light weight.Fibrage layer 54 preferably is fixed on the reel, so that be limited in the stress/strain on the lead, but can not need reinforced layer is fixed on the reel in some cases.Fixing can making by any way for example mechanically is fixed on braid on the reel 2, as shown in Figure 3 by a pin 80.Mechanical fixation can be made in the following manner: an end of preferred knit nylon layer 54 is retracted, heat this end braid is melted in together, and the braid of fusing is fixed on the reel pin 80.Perhaps, also can use adhesive on reel this braid.Perhaps, also the tail end of this fibrous braid can be inserted in the hole in the reel and and tie a knot, thereby braid is fixed on the reel it.The end opposite of this braid then mechanically is fixed on the RTU (remote terminal unit) C.Layer 54 will bear the mechanical stress that acts on the cable 10 by using.Because fibrage layer 54 provides very big hot strength in a quite thin thin layer, cable 10 can have a gratifying little external diameter thus, good is flexible, and has enough hot strengths, thereby the working life that prolongs is provided.
Fig. 5 is a sectional view of the stratiform part of the clockwork spring 22 after being placed on inside cable 24 in the inner chamber 6.As mentioned above, Fig. 5 shows a preferred inside cable and clockwork spring, but obviously also can use other configuration.A preferred inside cable 24 comprises the following insulating barrier 100 of a contiguous clockwork spring 22, many central conductors 102, and a covering insulating barrier 104.Though insulating barrier 104 illustrates as covering lead 102, it also can be the clockwork spring 22 of underlay, has only the insulation of signal conductor and clockwork spring 22 to be only important.Each bar lead 102 can equally also can will descend insulating barrier 100 to be fixed on the clockwork spring 22 with adhesive with adhesive on insulating barrier 100 and 104.Other fixture can comprise heat bonding.Perhaps, conductive strips also can be coated in or be imprinted on the clockwork spring.
Perhaps, cable 24 can comprise one and stick on the clockwork spring 22 flat ribbon cable of (or separate with clockwork spring), the insulated conductor of perhaps a plurality of be fixed on the clockwork spring 22 (or form an integral body with clockwork spring).Other alternative plans will be fully aware of for those skilled in the art, comprise, a kind of clockwork spring of forming by non-conductive polymer, this polymer has a kind of spring that makes and has identical flexible elastic memory function, and makes the inside cable 24 that includes many single leads electroplate or deposit thereon.But the metal clockwork spring is preferred, because have been found that speed that the polymer clockwork spring loses its elastic memory function unfriendly is than fast many of preferred metal clockwork spring.
Inside cable 24 passes the hole 12 on the reel annular wall and is connected with retractable cable conductor 50 conductively.Conduction connects can be by welding, and binding post connects, and perhaps forms by other known devices of prior art.Perhaps, the lead of retractable cable 10 can be made an integral body with the lead of inside cable 24.In fixed point near the hole 12 on the annular wall, being preferably in provides some loose part so that form strain relief in the lead, like this, when retractable cable 10 is stretched or is in other stresses, mechanical load just will be born and be can't help lead 50 and bear by fibrage layer 54.This will help to prevent the inefficacy of lead 50, and can consider to use the lead 50 than minor diameter, thereby it is little, in light weight to make retractable cable 10 have size, and flexible good advantage.
Have the end and be welded together though should be appreciated that the retractable cable and the inside cable of diagram and explanation,, retractable cable 10 and inside cable 24 can be the cables of an integral body.Therefore, term " retractable cable " is meant retractable this part of cable, and term " inside cable " then is meant cable this part in inner chamber 6.In fact, in some application scenario, having a flat ribbon cable is acceptable, or even desirable, and at this moment, inside cable part 24 and retractable cable section 10 can be the parts of a continuous whole cable.It also is feasible making a cable that comprises the integral body of a flat part (preferably as inside cable) and a circular portion (preferably as retractable cable).
In order further to improve lead of the present invention, comprise at least one shielded conductor in the many leads 102 of preferred inside cable 24 of the present invention in the performance aspect the anti-electromagnetic interference.With the cell phone is example, and earphone needs two leads, and microphone needs a lead.Inside cable shown in Figure 5 is made up of four leads.Two leads 106 and 108 on the left side are used for earphone signal, and a rightmost lead 110 is used for microphone.Between the left side and the right is a shielded conductor 112.Therefore, the small-power microphone signal that is transmitted by lead 110 at left end by shielded conductor 112 shieldings, at upper and lower end by clockwork spring 22 shieldings, at right-hand member then by cover plate 33 or by being shielded by reel or other entrained protecting screens of outer cover.Shielded conductor 112 conductively with clockwork spring 22, reel screen 48 is connected with retractable cable shield 52, and a continuous public shielding is provided thus.Do not need the application scenario (for example headphone among Fig. 6) that shields for those, can not need shielded conductor 112.
Though only show four independent leads 102 in Fig. 4, the present invention can comprise the lead by a specific needed any amount in application scenario.In addition, as hereinafter discussing, the lead 102 of other shapes, insulating barrier 104 and 100 and clockwork spring 22 all within the scope of the invention.
By coiling clockwork spring 22 on inside cable 24, the invention solves some problems of the prior art.At first, owing to being contained in the chamber identical with clockwork spring 22, thin inside cable saved valuable space; Do not need independent chamber thus.If according to the situation of preference, lead 102, insulating barrier 100 and 104 will all be supported by clockwork spring 22, and they are all extremely thin and flexible good, thereby do not have the risk of high failure rate.The added space saving is provided so again.In addition, lead 102 is do not need in the individually shielded good EMI-RFI shielding environment to be in one.Say that exactly lead 110 all carries out the EMI-RFI shielding by metal clockwork spring 22 with following thereon, is shielded by shielded conductor 112 in the one side, then shields by cover plate 33 and/or by the nickel coating on the drum wall at its opposite side.Therefore because independent lead 102 do not need independent shielding, from and realized that other space saves.
Therefore, invention of the present disclosure is with a kind of economy, and actual and easy mode has realized above-mentioned each advantage.Though illustrated and illustrated the configuration of most preferred embodiment and example above, should be appreciated that for those those skilled in the art, various further changes and additional configuration are fully aware of.Specific embodiment disclosed herein and configuration just are used for illustrating implements preferred and best mode of the present invention, not should be understood to the restriction by the scope of the present invention of defined in the appended claims book.
Claims (18)
1. retractable cable drum that can rotate on an axle comprises:
One is installed in rotation on the reel on this axle, and described reel has an annular wall that defines an outer cable groove and an inner chamber;
One remains on the retractable cable in the described outer cable groove removably, and described retractable cable has many leads and an outer reinforced layer;
One has the inside cable of many leads, and described inside cable remains in the described reel inner chamber; And
Be connected the device that is used for making described reel to rotate along the twisted and released of the cable direction on the described reel, wherein this device comprises a spring in described reel inner chamber, and described inside cable is flat partially; The substantial portion of described spring and the described at least spring length of the mutual mechanical separation of described inside cable, described inside cable and described spring are reeled spirally jointly, and an end of described spring is connected on this axle, and its other end is connected on the described reel.
2. retractable cord reel that can rotate on an axle comprises:
One is installed in rotation on the reel on this axle, and described reel has one and defines an outer cable groove of radial location and the annular wall of an inner chamber;
But one remains on the folding and unfolding cable in the described outer cable groove removably;
One is wound on the clockwork spring in the described reel inner chamber, and an end of described clockwork spring is connected on this axle, and the other end of described clockwork spring is connected on the described reel, and described clockwork spring is used for making described reel to rotate along the direction of twisted and released of the cable; And
One inside cable in described reel inner chamber, described inside cable is flat flat cable, at least on the substantial portion of described clockwork spring length, described inside cable mechanically separates with described clockwork spring, and reel spirally with described clockwork spring, described inside cable is connected with described retractable cable electrical.
3. retractable cable drum as claimed in claim 2, wherein, described reel shields.
4. retractable cable drum as claimed in claim 2, wherein, this cable drum is electrically connected a source device on a remote equipment, the part of described inside cable at this axle place along extending axially outside this reel, so that be connected with this source device, described retractable cable is connected with this remote equipment.
5. retractable cable drum as claimed in claim 2 comprises that also one is used for holding the outer cover of described reel, and described outer cover has the radial hole that a described retractable cable passes therethrough.
6. retractable cable drum as claimed in claim 2 also comprises a ratchet that operationally is meshed with described reel, is used for limiting selectively the rotation of described reel.
7. retractable cable drum as claimed in claim 2, wherein, described retractable cable and described inside cable are whole.
8. retractable cable drum as claimed in claim 2, wherein, described retractable cable comprises an outer cover and at least one inside conductor, described outer cover mechanically is fixed on the described reel.
9. retractable cable drum as claimed in claim 2, wherein, the screen that described retractable cable comprises many leads and surrounds at least one lead in the described lead; Described inside cable comprises many leads, but every lead be connected with a corresponding lead in the described folding and unfolding cable conductor, but and a shielded conductor that is connected with the screen of described folding and unfolding cable; And comprise that also one surrounds the shielding of described reel inner chamber substantially, and described inner chamber shielding, clockwork spring electrically is connected between shielded conductor and screen are mutual.
10. retractable cable drum as claimed in claim 2, wherein, described reel has a diameter less than about 4cm, and has the thickness less than about 2cm.
11. the retractable cable drum that can rotate on an axle comprises:
One is installed in rotation on the reel on this axle, and described reel has an annular wall that defines an outer cable groove and an inner chamber;
One remains on the retractable cable in the described outer cable groove removably, and described cable has first end of a contiguous described annular wall;
One is wound on the clockwork spring in the described reel inner chamber, and an end of described clockwork spring is connected on this axle, and the other end of described clockwork spring is connected on the described reel, and described clockwork spring is used for making described reel to rotate along the twisted and released of the cable direction; And
One insulating coating on described clockwork spring; And
At least one is bonded in the conductive strips on the described coating.
12. a retractable cable drum comprises:
One outer cover, this outer cover have a columniform substantially inside, a radial hole and an axial hole;
One axle in described outer cover;
One is mounted to the reel that rotates on this axle, described reel has an annular wall that defines an outer cable groove and an inner chamber, has a radial hole in the described annular wall;
One surrounds the electromagnetic shielding of described reel;
But one is wound on the folding and unfolding cable in the described outer cable groove removably, described cable comprises many leads, described lead has first end in the described hole in the contiguous described reel annular wall, screen above one at least one lead in described lead, one end of described screen is connected with described reel screening conductive ground, and a reinforcement, one first end of described reinforcement is fixed on the described reel;
One clockwork spring in described reel inner chamber, an end of described clockwork spring is connected on the described axle, and its other end is connected on the described reel.
One inside cable, this cable is reeled spirally with described clockwork spring in the inner chamber of described reel, but described inside cable has first end that is electrically connected with described first end of described folding and unfolding cable conductor, and second end that stretches out vertically at described axle place outside the described reel.
13. one kind is used for constituting the small-size retractable cable drum that a plurality of signals are connected between a source device and a remote equipment, comprises:
One has the outer cover of a radial hole and an axial hole;
One axle in described outer cover;
One is mounted to the reel that rotates on described axle, described reel has a diameter less than about 4cm, and has the thickness less than about 2cm, described reel has an annular wall that defines an outer cable groove and an inner chamber, and described annular wall has a radial hole that connects described inner chamber and described outer cable groove;
One clockwork spring in described reel inner chamber, an end of described clockwork spring is connected on the described axle, and second end is connected on the described reel;
One flat substantially inside cable, in described reel inner chamber, reel spirally with described clockwork spring, one end of described inside cable extends to the described hole on described annular wall, second end is drawn by the axial hole of described outer cover, described second end is connected with one of described source device or remote equipment, described inside cable has many signal conductor, and the shielded conductor between described many signal conductor;
One electromagnetic shielding, the inner chamber of described at least reel is surrounded in this shielding, and is electrically connected with the shielded conductor of described clockwork spring and described inside cable;
One is wound on the retractable cable in the outer cable groove of described reel removably, described cable has first end in the described hole on the contiguous described reel annular wall, and one pass second end that the described radial hole in the described outer cover stretches out, described second end is connected with another equipment in this source device or the remote equipment, described retractable cable comprises many signal conductor, every lead in the described cable conductor and the corresponding lead in the described inside cable lead are electrically connected, but surround a screen of at least one lead in the described folding and unfolding cable conductor, first end of described cable shield and the shielded conductor of described inside cable are electrically connected, and the fibrage layer on described lead, one first end is fixed on the described reel, and one second end is fixed on described another equipment of this source device or RTU (remote terminal unit).
14. the retractable cable drum in an outer cover comprises:
One is installed in rotation on the reel in this outer cover, and described reel has compartment in an outer compartment and, described outer compartment and interior compartment radial location;
But one remains on the folding and unfolding cable in the described outer compartment of described reel removably;
One is wound on the inside cable in the compartment in described reel described spirally, and described inside cable is connected with described retractable cable; And
Be used for making the device of described reel along the rotation of twisted and released of the cable direction, described device and the described inside cable helically coiling that is used for described reel is rotated also mechanically separates with described inside cable.
15. the composite set of headphone and retractable cord reel comprises:
One headphone has a headband and the loud speaker of at least one earphone and in described earphone;
One is installed in rotation on the reel on the described headphone, and described reel has an outer cable groove and an inner chamber;
Article one, be wound on the cable in this cable trough of described reel, an end of described cable can be from folding and unfolding on described reel and the described headphone;
One spirality clockwork spring in described inner chamber, described clockwork spring are used for making described reel to rotate along the direction of twisted and released of the cable; And
One inside cable, at least a portion of described inside cable is reeled spirally with described clockwork spring in this inner chamber of described reel, one end of described inside cable is connected with loud speaker in the described headphone, but the other end of described inside cable is connected with the other end of described folding and unfolding cable.
16. the composite set of headphone as claimed in claim 15 and retractable cord reel, wherein, described reel has a diameter less than about 4cm.
17. the composite set of handheld communication devices and retractable cord reel comprises:
One handheld communication devices has an outer cover;
At least one earphone and a microphone;
One is installed in rotation on the reel in the described communicator outer cover, and described reel has an outer cable groove and an inner chamber;
Article one, be wound on the cable in this cable trough of described reel, an end of described cable can be from folding and unfolding on described reel and the described communicator outer cover, and a described end is connected at least one in described earphone and the microphone;
Be used for making the device of described reel along the direction rotation of twisted and released of the cable; And
Inside cable in the inner chamber of described reel, an end of described inside cable is connected with described communicator.
18. the composite set of handheld electronic apparatus and retractable cord reel comprises:
One handheld electronic apparatus has an outer cover;
One is installed in rotation on the reel on the described electronic installation outer cover, and described reel has an outer cable groove and an inner chamber;
Article one, be wound on the cable in this cable trough of described reel, an end of described cable can be from folding and unfolding on described reel and the described electronic installation outer cover;
Be used for making the device of described reel along the direction rotation of twisted and released of the cable, wherein said tumbler comprises a clockwork spring; And
Inside cable in the inner chamber of described reel, wherein, described inside cable and described clockwork spring helically are reeled and are mechanically separated the substantial portion of described at least spring length with described clockwork spring, one end of described inside cable is connected with described electronic installation, but the other end of described inside cable is connected with the other end of described folding and unfolding cable.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19732698A | 1998-11-20 | 1998-11-20 | |
| US09/197326 | 1998-11-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1333937A CN1333937A (en) | 2002-01-30 |
| CN1218456C true CN1218456C (en) | 2005-09-07 |
Family
ID=22728943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99815718XA Expired - Lifetime CN1218456C (en) | 1998-11-20 | 1999-11-12 | Miniature retractable cord reel |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1131869A4 (en) |
| KR (1) | KR100773319B1 (en) |
| CN (1) | CN1218456C (en) |
| AU (1) | AU755368B2 (en) |
| CA (1) | CA2351939C (en) |
| HK (1) | HK1044857B (en) |
| TW (1) | TW473454B (en) |
| WO (1) | WO2000031847A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9496911B2 (en) | 2013-09-24 | 2016-11-15 | 3B Product Development, Llc | Protective cover and retractable lanyard |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR811101A0 (en) * | 2001-10-05 | 2001-10-25 | Talmor, Eyal Mr | Retractable cable assemblies and devices including the same |
| JP4876587B2 (en) * | 2006-01-13 | 2012-02-15 | オムロンヘルスケア株式会社 | Blood pressure measurement device |
| CN101630827B (en) * | 2008-07-17 | 2011-09-21 | 致伸科技股份有限公司 | Cable tidying device |
| CN103825156A (en) * | 2014-02-21 | 2014-05-28 | 沁源县旺庄养殖专业合作社 | Pull type microphone cord of fixed-line telephone |
| CN104518460B (en) * | 2014-12-26 | 2017-02-08 | 国家电网公司 | Winder for binding cable binding wire |
| IT201700031816A1 (en) * | 2017-03-23 | 2018-09-23 | Daniele Schintu | PROTECTIVE CASE WITH ELICOIDAL REWIND FOR DEVICES WITH FLEXIBLE CABLE |
| CN111605726B (en) * | 2020-04-27 | 2021-10-01 | 哈尔滨工业大学 | Energy transmission winder for satellite solar panel driving device |
| EP3958417A1 (en) | 2020-08-18 | 2022-02-23 | Dmitrijs Volohovs | Winch |
| CN112382898B (en) * | 2020-10-22 | 2022-03-18 | Oppo广东移动通信有限公司 | Line concentration mechanism and transmission line assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3518157A1 (en) * | 1985-05-21 | 1986-11-27 | Atlanta-Kabel-Steinmüller KG, 5880 Lüdenscheid | Self-rewinding cable drum |
| US5590749A (en) * | 1990-03-14 | 1997-01-07 | Magic Electrical Products L.L.C. | Electrical cord retraction device |
| US5241593A (en) * | 1991-05-07 | 1993-08-31 | Wagner Ronald D | Telephone and telephone cord retraction device, and method of making |
-
1999
- 1999-11-12 EP EP99958901A patent/EP1131869A4/en not_active Withdrawn
- 1999-11-12 CA CA002351939A patent/CA2351939C/en not_active Expired - Lifetime
- 1999-11-12 AU AU16176/00A patent/AU755368B2/en not_active Expired
- 1999-11-12 KR KR1020017006304A patent/KR100773319B1/en active IP Right Grant
- 1999-11-12 CN CN99815718XA patent/CN1218456C/en not_active Expired - Lifetime
- 1999-11-12 WO PCT/US1999/026711 patent/WO2000031847A1/en not_active Application Discontinuation
- 1999-11-17 TW TW088119994A patent/TW473454B/en not_active IP Right Cessation
-
2002
- 2002-06-26 HK HK02104755.5A patent/HK1044857B/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9496911B2 (en) | 2013-09-24 | 2016-11-15 | 3B Product Development, Llc | Protective cover and retractable lanyard |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010080502A (en) | 2001-08-22 |
| EP1131869A1 (en) | 2001-09-12 |
| CA2351939C (en) | 2005-09-27 |
| AU1617600A (en) | 2000-06-13 |
| KR100773319B1 (en) | 2007-11-05 |
| AU755368B2 (en) | 2002-12-12 |
| TW473454B (en) | 2002-01-21 |
| CN1333937A (en) | 2002-01-30 |
| EP1131869A4 (en) | 2003-03-12 |
| HK1044857A1 (en) | 2002-11-01 |
| HK1044857B (en) | 2006-02-03 |
| WO2000031847A1 (en) | 2000-06-02 |
| CA2351939A1 (en) | 2000-06-02 |
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Correction item: Co-applicant False: Richard E. Skowronski Number: 5 Volume: 18 |
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| CI02 | Correction of invention patent application |
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