SI21290A

SI21290A - Automatic cabel winder

Info

Publication number: SI21290A
Application number: SI200200181A
Authority: SI
Inventors: Artur Predan
Original assignee: Eurel D.O.O.,
Priority date: 2002-07-22
Filing date: 2002-07-22
Publication date: 2004-02-29

Abstract

The invention presents the structure of a winding mechanism for winding up a connection cable in case of apparatuses with double electric insulation without the need of the third earthing conductor. The connection cable can be pulled out of an apparatus for an optional length of up to 2 m and the mechanism snaps in at the release of the connection cable. At the repeated short pull-out, the snapping mechanism is released again and a recovery spring automatically pulls the connection cable into the housing. The winder consists of a housing (1), winding wheel (2) with sliding rings (8a) and (8b), two contact blades (6a), recovery spring (5), recovery spring roller (4), catch (7a, 7b and 7d), connection cable (3), wheel cover (10) and fixing screw (11). When the mechanism is not snapped in, the connection cable (3) is automatically wound on the winding wheel (2) by the action of the recovery spring (5). A pivoting part of the catch (7a) is inserted into the housing (1), enabling the winding mechanism to snap in by means of a catch segment (7b), as soon the connection cable (3) is released. The winding wheel (2) wears radial guiding grooves in which a guiding plug of the catch (7d) is sliding. By using the guiding grooves, the plug rotates the catch segment of the catch (7b) into such a position that the mechanism is either snapped in or it enables the pull-out or winding of the connection cable.

Description

Izum predstavlja izvedbo navijalnega mehanizma za navijanje priključnega kabla pri aparatih z dvojno izolacijo kjer ni potrebe po tretjem ozemljitvenem vodniku.The invention is an embodiment of a winding mechanism for winding the connecting cable in double-insulated apparatus where there is no need for a third grounding conductor.

Glede na poznane izvedbe ta omogoča bolj zanesljivo delovanje, daljšo življenjsko dobo ter enostavnejše delovanje. Ima manj sestavnih delov kar omogoča enostavnejšo montažo sestavnih delov.According to the known embodiments, this allows for more reliable operation, longer life and simpler operation. It has fewer components, making it easier to mount components.

Pri navijalu po izumu se priključni kabel lahko izvleče iz aparata za poljubno dolžino do 2m in ko se priključni kabel spusti se mehanizem preko zaskočke zaskoči. Pri ponovnem kratkem izvleku kabla se zaskočka sprosti in povratna vzmet avtomatsko potegne priključni kabel v ohišje.In the case of the retractor according to the invention, the connecting cable can be pulled out of the appliance for any length up to 2 m and when the connection cable is lowered the mechanism snaps through. When the cable is pulled out again, the latch is released and the return spring automatically pulls the connecting cable into the housing.

Izvlečeno dolžino kabla se podaljša tako, da se kabel ponovno izvleče na večjo dolžino ter se ga spusti, da se pri novi dolžini mehanizem spet zaskoči.Extend the length of the cable by retracting the cable to a larger length and lowering it so that the mechanism locks again at the new length.

Izvlečeno dolžino kabla se skrajša tako, da se kabel kratko izvleče in spusti, pri čemer povratna vzmet vleče kabel v ohišje, ter se pri krajši dolžini kabel spet nekoliko izvleče ter ponovno spusti, da se mehanizem zaskoči.The shortened cable length is shortened by shortly pulling and lowering the cable, with the return spring pulling the cable into the housing, and again pulling the cable slightly shorter and lowering it again to lock the mechanism.

Izum sodi po mednarodni klasifikaciji v skupino H 02 GThe invention belongs to the international classification H 02 G

Opis do sedaj znanih izvedb (stanje tehnike)Description of known embodiments (state of the art)

V patentnem spisu DE 31 04 597 A1, DE 32 46 765 A1 ter DE 195 05 926 A1 je opisano navijalo za priključni kabel pri katerem je zaskočni mehanizem oblikovan tako, da se zaskočka, potem ko se pusti, da povratna vzmet vleče priključni kabel v navijalo, zatakne za zob na ozobljenem vencu. Ko pa se priključni kabel nekoliko povleče ven se v določeni legi, kjer ni ozobljenja, zaskočka zavrti tako, da se ne more več zaskočiti in povratna vzmet lahko potegne kabel v navijalo.DE 31 04 597 A1, DE 32 46 765 A1 and DE 195 05 926 A1 disclose a retractor for a connecting cable in which the latch mechanism is designed to snap after allowing the return spring to pull the connecting cable into retractor, clamps the tooth on the toothed wreath. However, when the connecting cable is slightly pulled out, it locks in a fixed, non-toothed position so that it can no longer snap and the return spring can pull the cable into the retractor.

Glavna pomanjkljivost tega navijala je, da ne omogoča zaskočenosti mehanizma za poljuben izvlek priključnega kabla ter je potrebno paziti oziroma poslušati kdaj pride zaskočka v nevtralno lego in tudi ponovni poteg za sprostitev zaskočke ni vedno enake dolžine kar je zelo moteče. Poleg tega se mora zaskočka od zaskočene lege do nezaskočene lege zavrteti za več kot 90°, kar ji omogoča elastičen del zaskočke, ki pa je zaradi velikega kota zavrtitve zelo obremenjen na izmeničen upogib vsled česar obstaja nevarnost utrujenosti materiala in s tem odpoved delovanja naprave.The main drawback of this retractor is that it does not allow the mechanism for any pull of the connecting cable to be engaged, and it is necessary to watch or listen when the snap comes into neutral position, and the retraction for releasing the snap is not always the same length, which is very disturbing. In addition, the latch must rotate more than 90 ° from the locked position to the locked position, which enables it to have an elastic part of the latch, which, due to the large rotation angle, is highly stressed for alternating bending, resulting in the risk of material fatigue and consequently failure of the device.

V patentnem spisu DE 26 20 924 je opisano navijalo pri katerem je zaskočni mehanizem oblikovan v obliki kanalov, ki vodijo zaskočni čep tako, da se po spustitvi priključnega kabla le ta zaskoči v posebni obliki kanala, pri ponovnem izvleku kabla pa se zaskočni čep spet sprosti.DE 26 20 924 discloses a retractor in which the latch mechanism is formed in the form of channels that guide the latching plug so that, after lowering the connecting cable, it latch in a special channel shape, and when the cable is pulled out again, the latching plug is released again .

Ta mehanizem sicer nima pomanjkljivosti prej omenjenega izuma vendar mora vso zaskočno silo prevzeti zaskočni čep in nosilni del čepa.Although this mechanism does not have the disadvantages of the aforementioned invention, all the latching force must be taken up by the latching pin and the bearing portion of the plug.

Zaradi nasprotujoče si zahteve po togosti čepa ter hkratni elastičnosti nosilnega dela čepa, morajo biti zaskočni delt tega mehanizma kovinski in iz treh oziroma več delov kar podraži to izvedbo in zmanjša zanesljivost delovanja.Due to the conflicting requirement of the rigidity of the stud and the simultaneous elasticity of the bearing part of the stud, the snap delta of this mechanism must be metal and of three or more parts, which will increase this design and reduce the reliability of operation.

-3Pomanjkljivosti obeh opisanih izvedb odpravlja v nadaljevanju opisana nova izvedba naprave za navijanje priključnega kabla.-3The disadvantages of the two described versions are eliminated by the following new version of the winding device for connecting cable.

Seznam slik izuma.List of drawings of the invention.

Si.1a prikazuje tlorisni pogled mehanizma.Si.1a shows a plan view of the mechanism.

Sl.1b prikazuje prerez po linij A-A.Fig. 1b shows a cross-section along lines A-A.

SI.1c prikazuje delni prerez po linij B-B.SI.1c shows a partial cross-section along lines B-B.

51.2 prikazuje navijalno kolo z zaskočko v stanju zaskočenosti.51.2. Shows a locking wheel with a snap-in snap.

51.3 prikazuje navijalno kolo z zaskočko v stanju navijanja kabla.51.3 shows a winding wheel with a snap in the condition of winding the cable.

51.4 prikazuje navijalno kolo z zaskočko v stanju odvijanja kabla.51.4. Shows a winding wheel with a latch in the state of unwinding the cable.

51.5 prikazuje navijalno koto z labirintom za priključni kabel.51.5 shows the winding angle of the maze for the connecting cable.

Opis sedanjega izuma (nova rešitev)Description of the present invention (new solution)

Navijalo je sestavljeno iz ohišja 1, ki ima v osrednjem delu cilindričen nastavek 1a, ki nosi navijalno kolo 2 na katero se navija in odvija priključni kabel 3. Sl.1bThe retractor consists of a housing 1 having a cylindrical attachment 1a in the central part, which carries a winding wheel 2 on which the connecting cable is detached and unwound. Fig.1b

Na ohišju 1 je cilindričen nastavek 1b, ki nosi kolešček 4, na katerega je vstavljena pogonska povratna vzmet 5. Kolešček 4 je proti izpadanju iz cilindričnega nastavka 1b zavarovan z elastično zaskočko 1c, ki je del ohišja. Sl.1bOn the housing 1 there is a cylindrical attachment 1b carrying a roller 4 to which a drive return spring 5 is inserted. The roller 4 is secured against elongation from the cylindrical attachment 1b by an elastic latch 1c which is part of the housing. Fig.1b

Na ohišju 1 so še štiri elastične zaskočke 1d , ki so del ohišja in so namenjene za pritrditev dveh kontaktnih lamel 6a in 6b na ohišje. Kontaktne lamele preko drsnih obročev 8a in 8b prevajajo električni tok iz vrtečega priključnega kabla 3 v notranjost poljubne naprave. Sl.lain SL.1cOn the housing 1 there are four elastic latch 1d, which are part of the housing and are intended for attaching two contact blades 6a and 6b to the housing. The contact strips transmit electrical current from the rotating connecting cable 3 to the interior of any device via the sliding rings 8a and 8b. Sl.lain SL.1c

-4V ohišju 1 je luknja 1e v katero se vstavi tečajni del zaskočke 7a preko katerega se prenaša zaskočna sila, ki jo povzroča povratna vzmet 5, od navijalnega kolesa, kjer je povratna vzmet pritrjena, na ohišje. Si. 1 h Ohišje ima na obodu tri ploščate nastavke 1f, preko katerih se ohišje in s tem celotno navijalo pritrdi v poljubno napravo. SL1a-4 In the housing 1, a hole 1e is inserted into which the hinge portion of the latch 7a is inserted through which a latching force caused by the return spring 5 is transferred from the winding wheel where the return spring is attached to the housing. Si. 1 h The housing has three flat nozzles 1f on the perimeter, through which the housing and thus the entire retractor are secured to any device. SL1a

Navijalno kolo 2 ima na eni strani izdelane vodilne kanale različnih globin 2b, 2c, 2d in 2e , ki usmerjajo vodilni čep zaskočke 7d in stem določajo kdaj se mehanizem zaskoči in kdaj ne. SI.2, SI.3 in SI.4The winding wheel 2, on the one hand, has fabricated guide channels of different depths 2b, 2c, 2d and 2e, which guide the guide pin 7d and stem determine when the mechanism locks and when it does not. SI.2, SI.3 and SI.4

Sl .2 prikazuje lego zaskočke, ki je zavrtena tako, da se je zaskočni krak zaskočke 7b zataknil v zob navijalnega kolesa 2a ter s tem preprečil, da bi povratna vzmet 5 navila priključni kabel 3.Fig. 2 shows the position of the latch, which is rotated so that the latch arm of the latch 7b is stuck into the tooth of the winding wheel 2a, thereby preventing the return spring 5 from winding the connecting cable 3.

SI.3 prikazuje lego zaskočke, ki je zavrtena tako, da je zaskočni krak zaskočke 7b odmaknjen od zoba 2a, s čemer je omogočeno, da povratna vzmet 5 navije priključni kabel na navijalno kolo.Figure 3B shows the position of the latch, which is rotated so that the latch arm of the latch 7b is away from the tooth 2a, allowing the return spring 5 to wind the connecting cable to the winding wheel.

Ko se priključni kabel 3 izvlači iz naprave, potem ko je mehanizem bil zaskočen, drsi vodilni čep zaskočke 7d najprej po zunanjem kanalu 2b , vendar samo do prehodnega kanala 2c , po katerem se vodilni čep zaskočke zapelje v notranji kanal 2d in drsi po njem vse dokler se priključni kabel ne sprosti. SI.4 , takrat se zaradi delovanja povratne vzmeti priključni kabel spet začne navijati, dokler se vodilni čep 7d ne zapelje v srednji kanal 2e kar povzroči, da se zaskočni krak zaskočke 7b zavrti v lego v kateri se zaskoči za zob navijalnega kolesa 2a in s tem se navijanje priključnega kabla ustavi. SI.2 Pri ponovnem kratkem izvleku priključnega kabla se vodilni čep zaskočke 7d spet zapelje v zunanji kanal 2b , kar omogoči povratni vzmeti, da navije priključni kabel na navijalno kolo, ko se priključni kabel sprosti. SI.3When the connecting cable 3 is pulled out of the device after the mechanism has been locked, it slides the locking pin 7d first through the outer channel 2b, but only to the passage channel 2c, after which the locking plug plugs into the inner channel 2d and slides through it. until the connecting cable is released. FIG. 4, then, due to the action of the return spring, the connecting cable starts to rewind until the guide pin 7d engages in the middle channel 2e, causing the locking arm of the latch 7b to rotate to a position in which it engages the tooth of the winding wheel 2a and s. this stops the winding of the connecting cable. SI.2. When the coupling cable is pulled out again briefly, the locking pin 7d is again inserted into the outer duct 2b, allowing the return spring to wind the coupling cable on the winding wheel when the coupling cable is released. SI.3

V zaskočeni legi mehanizma Sl.2 vodilni čep zaskočke 7d ne prenaša nobene sile saj se vsa zaskočna sila in udarci prenašajo preko robustnega kraka zaskočke 7b in preko robustnega tečajnega dela zaskočke 7a na ohišjel Sl.1b s čemer je zagotovljena dolga življenjska doba zaskočke. Prehodi med vodilnimi kanali 2b, 2c, 2d in 2e so zaradi različnih globin izvedeni s strminami, da je prehod vodilnega čepa brez udarca in s stopnicami, da je onemogočeno naključno prehajanje vodilnega čepa zaskočke iz enega kanala v drugega s čemer je zagotovljeno zanesljivo delovanje navijala.In the locked position of the mechanism Fig. 2, the locking pin 7d does not transmit any force since all locking force and shocks are transmitted through the robust hinge arm 7b and through the robust hinge portion of the hinge 7a to the housing Fig. 1b, which ensures long locking life. Crossings between guide channels 2b, 2c, 2d and 2e are made due to the different depths with slopes so that the passage of the guide pin is non-impact and with steps, so that the random passage of the locking pin from one channel to another is prevented, thus ensuring reliable operation of the retractor .

Konstrukcija naprave je takšna, da se elastični krak zaskočke 7c , ki nosi vodilni čep 7d, pri gibanju po vodilnih kanalih zaradi strmin in stopnic le malenkostno elastično upogiba in povzroča le minimalne napetosti s čemer je zagotovljena dolga življenjska doba zaskočke.The design of the device is such that the elastic arm of the latch 7c, bearing the guide pin 7d, flexes only slightly elasticly when moving along the guide channels due to the slopes and steps, thus producing only minimal stresses, thus ensuring a long latch life.

Da je preprečeno odtrganje prikjučnega kabla 3, ko je le ta popolnoma izvlečen ima navijalno kolo 2 v osrednjem delu labirint 2f v katerega se tesno vstavi priključni kabel 3 , prostor izven labirinta pa je namenjen za navijanje priključnega kabla. SI.5In order to prevent tearing of the connecting cable 3 when fully extended, it has a winding wheel 2 in the central part of the maze 2f into which the connecting cable 3 is tightly inserted and the space outside the maze is intended for winding the connecting cable. SI.5

Ker ohišje 1 s kontaktnima lamelama 6a in 6b miruje, navijalno kolo 2 s priključnim kablom 3 pa se vrti, sta v navijalno kolo trdno vstavljena dva kovinska kontaktna obroča 8a in 8b, na katera sta v izrezu navijalnega kolesa 2g privaljena vodnika priključnega kabla 3a in 3b.As the housing 1 with the contact blades 6a and 6b is stationary and the winding wheel 2 with the connecting cable 3 rotates, two metal contact rings 8a and 8b are firmly inserted into the winding wheel, to which the conductors of the connecting cable 3a and 3b.

SI.5 Na drugi strani obročev pritiskata na obroča kontaktni lameli 6a in 6b, ki s tem omogočata drsni električni kontakt z obročema. Sl.1a in Sl.1c Kontaktni lameli 6a in 6b imata na drugem koncu s stisljivo sponko 9a in 9b trdno pritrjen neizoliran del notranjega vodnika 12 , ki omogoča električno povezavo na poljubno napravo. Sl.1aSI.5 On the other side of the rings, the contact strips 6a and 6b are pressed on the rings, which in this way allow sliding electrical contact with the rings. Fig.1a and Fig.1c The contact blades 6a and 6b have a firmly secured non-insulated part of the inner conductor 12 at the other end with a clamping clip 9a and 9b which allows electrical connection to any device. Fig.1a

Povratna vzmet 5 je spiralno navita na nosilni kolešček 4, ki se prosto vrtina nastavku ohišja 1b, Sl.1b prosti konec povratne vzmeti pa je pritrjen v utoru navijalnega kolesa 2h, SI.2 ki se nahaja na vencu navijalnega kolesa 2k na katerega se navija povratna vzmet, ko se priključni kabel izvlači iz navijala, s čemer nastane navor, ki priključni kabel navije na navijalno kolo, ko le tega sprostimo.The return spring 5 is helically wound on the roller 4, which freely drills into the extension of the housing 1b, and Fig.1b the free end of the return spring is fixed in the groove of the winding wheel 2h, SI.2 which is located on the crown of the winding wheel 2k which is supported a return spring when the connecting cable is pulled out of the winder, thus producing a torque that winds the connecting cable onto the winding wheel when it is released.

Navijalno kolo 2 ima na strani kjer se navija priključni kabel tri elastične zaskočke 2m , ki so del navijalnega kolesa S.1binSI.5 ter so namenjena pritrditvi pokrova 10 na navijalno kolo. Na ta način je ustvarjen za višino kabla omejen prostor kamor se navija priključni kabel 3.The winding wheel 2 has three elastic snaps 2m, which are part of the winding wheel S.1binSI.5, on the side where the connecting cable is attached, and are intended to attach the cover 10 to the winding wheel. In this way, a limited space is created for the height of the cable to be secured by the connecting cable 3.

Navijalno kolo 2 je skupaj s pokrovom 10 z vijakom 11 pritrjeno na osrednji nastavek ohišja 1a tako, da se lahko na tem nastavku prosto vrti ne more pa izpasti iz njega. Sl.1bThe winding wheel 2 is fastened together with the cover 10 by means of a screw 11 to the central extension of the housing 1a so that it can rotate freely in this extension, but cannot fall out of it. Fig.1b

Prijavitelj. EUREL d.o.o.Applicant. EUREL d.o.o.

Podjetje za proizvodnjo, trgovino in storitve Bistriška 54, SI-2319 Poljčane, Slovenija eurelManufacturing, Trade and Services Company Bistriška 54, SI-2319 Poljčane, Slovenia eurel

Claims

An automatic cable winder, characterized in that the pivoting latch has a robust hinge (7a) on one side, a robust latching arm (7b) and, on the other, an elastic arm (7c) carrying a guide pin (7d).

Automatic cable winder according to claim 1, characterized in that the winding wheel has guided grooves (2b), (2c), (2d) and (2e) with slopes and steps.

Automatic cable winder according to Claims 1 and 2, characterized in that the housing (1) has elastic snaps (1d) for attaching the contact strips (6a) and (6b) to the housing.

Automatic cable winder according to claim 1, 2 and 3, characterized in that the winding wheel (2) has elastic snaps (2m) for attaching the wheel cover (10) to the winding wheel.

Applicant: EUREL d.o.o.

Manufacturing, Trade and Services Company Bistriška 54, SI-2319 Poljčane, Slovenia