CA2113149A1 - Rotary closure - Google Patents
Rotary closureInfo
- Publication number
- CA2113149A1 CA2113149A1 CA002113149A CA2113149A CA2113149A1 CA 2113149 A1 CA2113149 A1 CA 2113149A1 CA 002113149 A CA002113149 A CA 002113149A CA 2113149 A CA2113149 A CA 2113149A CA 2113149 A1 CA2113149 A1 CA 2113149A1
- Authority
- CA
- Canada
- Prior art keywords
- traction cable
- rotary
- winding pulley
- closure
- hub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C11/00—Other fastenings specially adapted for shoes
- A43C11/16—Fastenings secured by wire, bolts, or the like
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C11/00—Other fastenings specially adapted for shoes
- A43C11/16—Fastenings secured by wire, bolts, or the like
- A43C11/165—Fastenings secured by wire, bolts, or the like characterised by a spool, reel or pulley for winding up cables, laces or straps by rotation
Landscapes
- Flexible Shafts (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Pulleys (AREA)
- Glass Compositions (AREA)
- Lubricants (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Abstract The invention relates to a rotary closure for releasable drawing together of two closure elements which can be braced relative to one another, the said closure comprising at least one traction cable as well as a rotatably mounted winding pulley which can be driven manually for winding on and unwinding of the traction cable. In this case a parti-cularly favourable arrangement and guiding of the traction cable is achieved by providing a diametral hub bore for a longitudinal portion of traction cable to pass through loosely in the plane of at least one traction cable receiving groove running around the outer circumference of the winding pulley.
Description
Rotary clo~ure The inventlon relatea to a rotary closure for adjustable and releai~able drawing together of two closure elemente,i which can be braced relatlve to one another, according to the preamble to Claim 1.
Rotary closureii of the type set out ln the preamble to Clalm 1 are known from EP-B-393 380 and EP-A-412 290. The~e known rotary closure~ are constructed particularly for use on sport~ ~ho~s. The cloiure flaps of a sporti shoe can be drawn together or released by windlng a traction cable onto a winding pulley which i8 rotatably mounted ln a housing or unwinding lt therefrom, and for this purpose this wlndlng pulley has a tractlon cable receivlng groove in whlch at least one end of the traction cable is fixed. So that a corresponding sports shoe can be adapted to a user's foot, accurate adJustment of these rotary closures le provided in that a rele~able locking arrangement or r~tchet arrangement 18 disposed in the region between a rotary knob whlch acte on a rotary actuatlng spindle and the wlnding pulley.
Further~ore, the rotary actuatlng spindle which is rotatably mounted ln the centre of the houslng lc in drive connection wlth the wlndlng pulley by way of a gearing arrangement, for example a planetary gear.
The obJect of the invention is to make further improvement~
to a rotary closure of the type set out ln the preamble to Claim 1 in such a way that it is distingulshed by parti-cularly favourable arran~ement and guldlng of the tractlon cable.
:
This obJect is achieved accordlng to the inventlon by the featureis ln the characterlsing portlon of Clalm 1.
Advantageous embodlment~ and further developments of the - 2 ~ 2~31 ~ g invention are the sub~ect matter of the subordlnate clalm~.
Whereas in the known constructlons descrlbed above the traction cable i8 fixed with one end or wlth both ends ln one single traction cable receiving groove, the lnvention proposes that ln the plane of or at the helght of at leaet one tractlon cable recelvlng groove whlch runs around the outer circumference of the windin~ pulley there is provlded a hub bore which diametrally traverses a central hub re$10n of this wlnding pulley and throu~h whlch the tractlon cable 18 loosely passed wlth a longltudlnal portion located betwesn its two end~. Thus the tractlon cable, which co-operate6 wlth two closure ele~ents whlch can be braced rela-tive to one another, can be reliably dlsposed and guided ln the assoclated tractlon cable recelvln~ ~roove, but ln an extremely advantageous manner a free longltudlnal movabillty of thls tractlon cable 1~ ensured at least at the beginnin~
of the tenslonlng or closure operatlon of the corre~pondlng longitudinal portlon of tractlon cable wlthln the ~csociated hub bore, receivlng groove and a~ociatad tractlon ~cable holes in a hou~lng wall. At the beginnlng of the tensionlng or closure operatlon thl~ free longltudinal movabillty of the traction cable contributes to an extremely good centrlng of the cable (self-centring) in the raglon of the winding pulley, so that the closure elements which are to be drawn together can be braced relative to one another in a manner whlch i8 extremely well adapted to the indlvidual closure elements.
One particularly advantageous embodlment of the inventlon ls al~o to be seen ln the fact that the two outer mouth por-tlons of the hub bore ln the wlndlng pulley are inçreasln~ly wldened outwards in the radial dlrectlon in such a way that - when con~ldered ln a top view of the windlng pulley and ln the directlon of wlndlng thereof - they extend ~o that they are curved backwards wlth the groove wldth remalnlng con--3- 21131~9 stant. A~; a result of these constructlons, durlng windlng on of the tractlon cable ln the associated tractlon cable recelvlng groove of the wlndlng pulley there are produced somewhat smooth transltlon~; from the hub bore to the outer clrcumferentlal wall of thi~; hub, that ls to say to the lnner clrcumf~rentlal reglon of the clrcular tractlon cable recelvln~ groove. Thus the correspondln~;S portlon of tractlon cable ls deflected wlthout slgrliflcant buckllng fitress into the tractlon cable recelvlnE~ groove.
Wlth regard to the lnstallatlon or replacement of the tractlon cable, lt ls easy to lmaglne that wlth thls con-~tructlon accordln~S to the inventlon a correcpondlng tractlon cable can also be pa~i~ed easlly from the exterlor through associsted tractlon cable hole~; ln a perlpheral wall of the houslng and through an a~--soclated hub bore without the rotary clo6ure havlng to be dlsmantled for thi~; purpose.
: ,'' ~:
In thls rotary closure accordlng to the lnventlon, lt 1 pos6ible for only one slngle tractlon cable recelvl~g groove to be provlded on the outer clrcumference of the wlndlng pulley, and accordlngly the two free ends of the tractlon cable are euch fastened on one of the two closure elements whlch can be braced relatlve to one another, wh116t a cen-tral longitudinal portion of the traction c~lble 18 loosely passed tXrough the hub bore.
Accordlng to a further advantageous embodlment of the lnven-tlon, the wlndlng pulley can have runnlng round it6 outer clrcumference two tractlon cable recelvlng grooves whlch are correspondlngly machlned lnto thl~: outer clrcumference of the wlnding pulley in two planes whlch ars ~xially spaced and lle parallel to one another. In thls case, at least for one tractlon cable recelvlng groove there 18 provlded ~
dl~metral hub bore for a central longltudlnal portlon of the tractlon cable to be passed through, and two di~lmetrally ~s~
: ` ~
Rotary closureii of the type set out ln the preamble to Clalm 1 are known from EP-B-393 380 and EP-A-412 290. The~e known rotary closure~ are constructed particularly for use on sport~ ~ho~s. The cloiure flaps of a sporti shoe can be drawn together or released by windlng a traction cable onto a winding pulley which i8 rotatably mounted ln a housing or unwinding lt therefrom, and for this purpose this wlndlng pulley has a tractlon cable receivlng groove in whlch at least one end of the traction cable is fixed. So that a corresponding sports shoe can be adapted to a user's foot, accurate adJustment of these rotary closures le provided in that a rele~able locking arrangement or r~tchet arrangement 18 disposed in the region between a rotary knob whlch acte on a rotary actuatlng spindle and the wlnding pulley.
Further~ore, the rotary actuatlng spindle which is rotatably mounted ln the centre of the houslng lc in drive connection wlth the wlndlng pulley by way of a gearing arrangement, for example a planetary gear.
The obJect of the invention is to make further improvement~
to a rotary closure of the type set out ln the preamble to Claim 1 in such a way that it is distingulshed by parti-cularly favourable arran~ement and guldlng of the tractlon cable.
:
This obJect is achieved accordlng to the inventlon by the featureis ln the characterlsing portlon of Clalm 1.
Advantageous embodlment~ and further developments of the - 2 ~ 2~31 ~ g invention are the sub~ect matter of the subordlnate clalm~.
Whereas in the known constructlons descrlbed above the traction cable i8 fixed with one end or wlth both ends ln one single traction cable receiving groove, the lnvention proposes that ln the plane of or at the helght of at leaet one tractlon cable recelvlng groove whlch runs around the outer circumference of the windin~ pulley there is provlded a hub bore which diametrally traverses a central hub re$10n of this wlnding pulley and throu~h whlch the tractlon cable 18 loosely passed wlth a longltudlnal portion located betwesn its two end~. Thus the tractlon cable, which co-operate6 wlth two closure ele~ents whlch can be braced rela-tive to one another, can be reliably dlsposed and guided ln the assoclated tractlon cable recelvln~ ~roove, but ln an extremely advantageous manner a free longltudlnal movabillty of thls tractlon cable 1~ ensured at least at the beginnin~
of the tenslonlng or closure operatlon of the corre~pondlng longitudinal portlon of tractlon cable wlthln the ~csociated hub bore, receivlng groove and a~ociatad tractlon ~cable holes in a hou~lng wall. At the beginnlng of the tensionlng or closure operatlon thl~ free longltudinal movabillty of the traction cable contributes to an extremely good centrlng of the cable (self-centring) in the raglon of the winding pulley, so that the closure elements which are to be drawn together can be braced relative to one another in a manner whlch i8 extremely well adapted to the indlvidual closure elements.
One particularly advantageous embodlment of the inventlon ls al~o to be seen ln the fact that the two outer mouth por-tlons of the hub bore ln the wlndlng pulley are inçreasln~ly wldened outwards in the radial dlrectlon in such a way that - when con~ldered ln a top view of the windlng pulley and ln the directlon of wlndlng thereof - they extend ~o that they are curved backwards wlth the groove wldth remalnlng con--3- 21131~9 stant. A~; a result of these constructlons, durlng windlng on of the tractlon cable ln the associated tractlon cable recelvlng groove of the wlndlng pulley there are produced somewhat smooth transltlon~; from the hub bore to the outer clrcumferentlal wall of thi~; hub, that ls to say to the lnner clrcumf~rentlal reglon of the clrcular tractlon cable recelvln~ groove. Thus the correspondln~;S portlon of tractlon cable ls deflected wlthout slgrliflcant buckllng fitress into the tractlon cable recelvlnE~ groove.
Wlth regard to the lnstallatlon or replacement of the tractlon cable, lt ls easy to lmaglne that wlth thls con-~tructlon accordln~S to the inventlon a correcpondlng tractlon cable can also be pa~i~ed easlly from the exterlor through associsted tractlon cable hole~; ln a perlpheral wall of the houslng and through an a~--soclated hub bore without the rotary clo6ure havlng to be dlsmantled for thi~; purpose.
: ,'' ~:
In thls rotary closure accordlng to the lnventlon, lt 1 pos6ible for only one slngle tractlon cable recelvl~g groove to be provlded on the outer clrcumference of the wlndlng pulley, and accordlngly the two free ends of the tractlon cable are euch fastened on one of the two closure elements whlch can be braced relatlve to one another, wh116t a cen-tral longitudinal portion of the traction c~lble 18 loosely passed tXrough the hub bore.
Accordlng to a further advantageous embodlment of the lnven-tlon, the wlndlng pulley can have runnlng round it6 outer clrcumference two tractlon cable recelvlng grooves whlch are correspondlngly machlned lnto thl~: outer clrcumference of the wlnding pulley in two planes whlch ars ~xially spaced and lle parallel to one another. In thls case, at least for one tractlon cable recelvlng groove there 18 provlded ~
dl~metral hub bore for a central longltudlnal portlon of the tractlon cable to be passed through, and two di~lmetrally ~s~
: ` ~
- 4 - 21 ~ 3 1 ~9 opposlng tractlon cable holes in the houslng wall are co-ordlnated wlth both tractlon cable recelvlng grooves. Thls constructlon permits an arrangement and guldln~ of at least one tractlon cable ln two tractlon cable recelvlng grooves which lle parallel to one another, ~o that the wlndlng pulley can take up a maxlmum of double the quantity of traction cable in comparlson wlth a wlnding pulley with only one slngle traction cable recelvin~ ~roove, whlch considerably increases the reclprocal braclng region of the clo6ure elements whlch are to be drawn together and can also be released from one another agaln.
Whereas the known constructlons descrlbed ln the intro-duction are provlded for speclal use on sports ~hoe~, the design of the rotary closure accordlng to the lnvention facilitates use which is not confined only to sports ~hoes but can also be ad~pted to many other advantageous possible applicatlons, such a8 for example varlous ltems of clothing <e.g. gloves, partlcularly baseball or other sport~ ~loves, belts, outer garments>, safety helmets, bags, cases? quick closures for fastenlng container~ or other parts to blcy-cles, etc. In each case, wlth the aid of the rotary clo~ure <rotary ten~ionlng closure) accordlng to the inventlon closure elements whlch can be braced relative to one another can be braced quickly, and thl~ bracing can also be released agaln quickly.
The rotary closure according to the inventlon wlll be explalned in greater detail below with the aid of some embodlment6 which are lllustrated in the drawings, in which:
Flgure 1 shows a vertlcal cro~s-~ection (approxlmately along the llne I-I ln Flgure 2~ through a flrst embodlment of the rotary closure accordlng to the invention, in which the assoclated wlndlng pulley only has one single tractlon cable recelvlng groove.
Whereas the known constructlons descrlbed ln the intro-duction are provlded for speclal use on sports ~hoe~, the design of the rotary closure accordlng to the lnvention facilitates use which is not confined only to sports ~hoes but can also be ad~pted to many other advantageous possible applicatlons, such a8 for example varlous ltems of clothing <e.g. gloves, partlcularly baseball or other sport~ ~loves, belts, outer garments>, safety helmets, bags, cases? quick closures for fastenlng container~ or other parts to blcy-cles, etc. In each case, wlth the aid of the rotary clo~ure <rotary ten~ionlng closure) accordlng to the inventlon closure elements whlch can be braced relative to one another can be braced quickly, and thl~ bracing can also be released agaln quickly.
The rotary closure according to the inventlon wlll be explalned in greater detail below with the aid of some embodlment6 which are lllustrated in the drawings, in which:
Flgure 1 shows a vertlcal cro~s-~ection (approxlmately along the llne I-I ln Flgure 2~ through a flrst embodlment of the rotary closure accordlng to the invention, in which the assoclated wlndlng pulley only has one single tractlon cable recelvlng groove.
- 5 - ~113149 Flgure 2 shows a somewhat slmplifled horizontal sectional view through the rotary closure, approxlmately along the line II-II ln Flgure 1, with the wlnding pulley ln lts startlng position;
Fl~ure 3 shows a similar horlzontal sectlonal vlew to that of Flgure 2, in whlch the wlnding pulley has already carrled ~ -out a partial turn;
Flgure 4 ~hows a horizontal sectlonal view through the rotary clo~ure ln a varlant in whlch the traction cable holes in the peripheral wall of the housing do not lle ~ :
dlametrally opposite one another;
Flgure 5 shows a vertlcal sectional view (approximately along the llne V-V ln Flgure 6) through a second embodiment of the rotary clo~ure ln whlch the windlng pulley has two tractlon cable receivlng ~rooves and each receivln~ groove t~kes up a central longitudinal portlon of the tractlon cable;
Flgure 6 shows a slmplifled horlzontal sectlonal view approxlnately along the llne VI-VI ln Figure 5;
Flgure 7 shows a slmllar vertical sectional vlew to that of Flgure 5 (sectlon approximately along the line VII-VII in ~ :
Flgure ô> explalnlng a further embodlment ln whlch one tractlon cable recelvlng groove takes up ~ central longltu- :
dln~l portlon and the second tractlon cable receiving ~roove takes up the ends of the tractlon cable; :~
Flgure 8 shows a slmpllfled horlzontal sectlonal vlew approxlmately along the llne VIII-VIII ln Figure 7;
Flgures 9 and ll ~hows ~chematic top vlews of particular varlant~ of the wlnding pulley with gener~l posslble appli-- 6 - 21~ 3 1 ~9 cations of the tractlon cable ~uides;
Flgure 10 shows a slde view of the wlndln~ pulley, approxi-mately along the line X-X in Flgure 9.
The ~eneral construction of the fir~t embodlment of thl~
rotary closure according to the ~nventlon will be explained with the aid of Figure 1.
Thl~ rotary closure contains as an essentlal part a winding pulley 2 which is rotatably mounted in a housing 1 and on whlch - preferably, ln the present case - one ~lngle traction cable 3 can be wound on and unwound, the traction cable being passed through traction cable hole6 or bores 4, 5 whlch are provlded in the perlpheral wall la of the hous~
lng 1. The traction cable 3 co-operates wlth two closure ~;
elements, not shown ln greater detall ln Fi~ure 1, whlch are drawn toyether ad~u~tably but releasably by the rotary closure and can be braced relatlve to one another thereby.
The rotary clocure also contains a rotary actuatlng spindle 6 whlch ls rotatably mounted in the centre of the hou~lng l ~ ~:
and ls ln rotary drlve connection wlth the wlndlng pulley 2 by way of a gearing arran~ement, preferably by way of a planetary gear 7 wlth a sun wheel 8, planet wheels 9 and an lnner gear rlng lO. In thls ca~e it ls also advantageous lf ln a manner whlch is known per se the rotary actuating spindle 6 bears a dlsconnectable coupling element lla of a coupling ll which is provlded ln the sald drive connectlon and can be dl~connected by axlal pressure actuatlon (arrow 13) of the rotary actuating shaft which c~n be exerted agalnst the force of a compresslon spring 12. In thls dls-connected state the wlnding pulley 2 is then freely rota-tably movable, thus facllitatlng a rapid unwindlng of the wound-on traction cable 3 and thereby a rapid release of the ¦ brMcing of the clo~ure elements. The Fiaid lower end 6a of ,, .
21~31~9 the rotary actuatlng shaft 6, together wlth the coupllng element lla borne thereon, protrudes axlally lnto a central axlal bore 14 in the central hub 15 of the wlnding pulley.
As ls also known per se from the constructlons accordlng to EP-B-393 380 and EP-A-412 290 whlch are explalned ln the lntroductlon, the rotary drlve of the wlndlng pulley 2 :
occurs ln such a way that the rotary actuatlng splndle 6 1 rotated ln the desired dlrectlon by way of a rotary knob 16 whlch i~ rotat~ble relatlve to the houslng 1 and which for example cover~ the housln~ 1 on lts upper face llke a cap, ~o that the coupllng 11 rotates the central sun wheel 8 whlch ls ln toothed engagement wlth several planet wheels 9 which ln turn are ln toothed eng~gement wlth a statlonary inner gear rlng 10 and are gulded so as to be freely rota-table on trunnlons 18 whlch are constructed flxed on the :~
upper, first outer face 2a of the wlndlng pulley 2.
Furthermore, followlng the known construction accordlng to ~:
EP-B-393 380 at least one ~top element for ln~-tance in the form of a stop arm 17, or al~o two stop arms 17, can be ~ :
rotatably mounted in the houslng 1 coaxi~lly with respect to the wlnding pulley 2 and on the lower, ~econd outer face 2b of this wlnding pulley 2 opposite the couplln~ 11. After at lea~t approxim~tely two revolutlon~ of the winding pulley thls stop element ~stop arm 17> comes to rest on the houslng 1, 80 that the rotary movement of the winding pulley 2 18 correspondlngly llmlted in order to prevent overstralnlng of the tractlon cnble 3.
Wlth a preferably cyllndrlcal shape, the wlndlng pulley 2 is uccommodated and gulded in a correspondlng portlon of the houslng 1 (as can be seen from Flgure 1>. Furthermore, lt can be advantageou6 lf a trunnion 17a of the stop element 17 protrudes from below from the lower, ~econd outer face 2b of the wlnding pulley a 6hort dl6tance lnto the axlal bore 14 - 8 - '~113~
of the wlndlng pulley hub 15. In thls case the ~top element 17 or one of the two ~top ele~ent~ 17 al~o has a ~econd trunnlon 17b wh~ch 1~ dlsposed coaxlally wlth the flr~t trunnlon protrudlng lnto the axial bore 14 and opposlte thereto and engages ln a bearlng bore 19 whlch 1~ suitably provlded ln a base wall lb of the housing 1.
Flnally, wlth regard to the general con~tructlon of the ~ :rotary closure lt ~hould al~o be mentloned that - as ln the two known con~tructlons mentioned above - the closure also contaln~ a releasable ratchet arran~ement 20 which 18 con~
structed for fixlng the rotary actuatlng shaft 6 and the :
wlnding pulley 2 when an adJustment of the rotary closure is carried o~t.
A clrcular traction cable recelving ~roove 21 ls machlned around the outer circumference of the wlndlng pulley 2, whereln the axlal dlmenslon <wldth> cf the sald groove 18 ~:
slightly greater than the diameter of the tractlon cable 3 and the radlal dlmenslon thereof ls sufflclently great to be able to take up a sufficiently large longltudlnal portlon of the tractlon cuble 2.
A slgnlflcant ldea of the lnvention i~ applled here, whereby a hub bore 22 which dlametrally traver~es the central hub reglon <hub 15) of the windlng pulley 2 18 provlded ln the ::
plane of or at the helght of thls clrcular traction cable receivlng groove 21. The tractlon cable 3 18 loosely passed wlth a longltudlnal portion located between lts two ends, . .
that 18 to say wlth a central longltudlnal portlon 3a, through the hub bore 22, l.e. the diameter of the hub bore 22 18 accordlngly only ~ust ~llghtly greater than the dlameter of the tractlon cable 3, but preferably ~omewhat smaller than the axlal width of the tractlon cable recelvlng groove 21 <as Flgure 1 shows). Thls sltuatlon 18 ~180 lllustrated ln the horlzontal sectional vlew of Flgures 2 and 3.
Flgures 2 and 3 also show that the two outer mouth portlons 22a, 22b of the hub bore 22 increaslngly widen in the radial dlrection in such a way that - when considered in a top vlew of the windln~ pulley 2 ~Fi~ures 2 and 3> and ln the direc-tlon of winding thereof <arrow 23) - thsy extend so that they are curved backwards wlth the groove width <axlal dlmension wlth respect to the wlndlng pulley 2> remalnlng constant, as can be seen partlcularly clearly in Flgure 2 at 22a' and 22b'. This permlts a relatlvely smooth wlndlng on ~ -of the central longltudlnal portlon 3a of the tractlon cable 3 in the transition from the hub bore 22 to the outer clr-cumferentlal wall of the hub 15. The latter is clear from a comparlson between the stsrtin~ positlon of the wlnding pulley 2 in Flgure 2 and the poeltlon of the wlndlng pulley 2 ln Figure 3, ln which the winding pulley 2 has carried out a flrst part-turn after the startlng position.
In the embodiment accordln~ to Flgures 1 to 3 the t~o trsctlon cable holes 4, 5 ln the perlpheral wall la of the housing are dlsposed in the same plane as the tractlon cable recelvlng groove 21 and the hub bore 22, and they lle approxlmately dlametrally opposlte one another. Thls con-structlon ls sultable for very varied posslble appllcations of the rotary closure accordln~ to the inventlon.
One varlant of the prevlously descrlbed construction is lllustrated in Figure 4. Accordlng to thl~ the two traction cable holes 4', 5' are also disposed ln the same plane as the tractlon cable recelvlng groove 21 and the hub bore 22, although they do not lle diametrally cppo~ite one another but have a perlpheral spacing UA of les6 than 180-, prefer-ably approxlmately 90, from one another. Thls can be advantageou~ above all ln sports shoes, particularly ~ki boot~, lf the rotary closure ls to be flxed for instance on , : " ~ , , ,. .",,, ,;; -, :r : , -- lo- 21131~9 a so-called spoller.
In the embodiment of the rotary closure which 18 de~crlbed above, ln whlch only one 5ingle tractlon cable recelvlng groove 21 is provlded on the outer circumference of the wlnding pulley 2, the two free ends of the tra~tion cable 3 are each fixed on one of the two closure el~ments which can be braced relatlve to one another - and are not shown in greater detail - whll~t the central lon~itudinal portlon 3a of the traction cable 3 i~ passed loosely through the hub bora 22.
A further embodlment of the rotary closure will be explained wlth the ald of Flgures 5 and 6. Slnce the yeneral con-structlon of thls embodlment largely corre~ponds ln lts essentlal part~ to the general con~tructlon explalned ln detall wlth the ald of Fl~ure l, the same parts are ldentl-fled by the same reference numerale, ~o that a repeated explanatlon thereof 18 unnece~sary. Thus thls embodlment accordlng to Flgures 5 and 6 al~o comprises a houslntg 1, a wlndin~ pulley 2 rotatably mounted thereln for wlnding on and unwlndlng preferably of one slngle traction cable 3, a rotary actuatlng shaft 6 rotatably mounted ln the centre of the houslng 1, a gearlng arrangement, preferably ln the form of planetary gear 7 for drivlng the windlng pulley 2, a coupllng ll between the rotary actuatlng shaft 6 and the planetary gear 7 a~ well ~ a ratchet arrangement 20 and at least one stop arm 17 to limlt the rotary movement of the wlndlng pulley 2.
A speclal feature of thl6 embodlment of the rotary closure whlch 18 lllustrated ln Flgures 5 and 6, but also wlth the ald of Flgures 7 and 8, may be sean above all in the fact the the wlndlng pulley 2 has two clrcular tractlon cable receivin~ grooves runnlng around ltc outer circumference whlch can both be constructed sub tantially the same slze \
3 1 ~ 9 and ln the manner explained wlth the aid of Figure 1. These two tractlon cable recelvlng grooves 21, 21a are - cf.
Flgures 5 and 7 - machlned lnto the wlndlng pulley 2 (from the outer clrcumference thereof) in two planes or at two height~ which are axially spaced and lie parallel to one another. In the construction according to Flgures 5 and 6, one assoclated dlametral hub bore 22 or 22c respectlvely ls provided for each of the two traction cable receiving grooves 21, 21a. In thls case central longltudlnal portlons 3a or 3b respectively of the tractlon cable 3 are passed through the two hub bores 22, 22c in such a way that on the one hand the two ends 3c and 3d of this traction cable 3 located outslde the rotary closure and on the other hand an outer loop of traction cable 3e formed by a longltudinal portlon of tractlon cable located outside the housln~ 1 are in closing en~agement with the closure elements, as fihown with the ald of Figure 9. In compari~on to the flrst embodlment explalned with the ald of Figures 1 to 3 (with only one traction cable receiving groove 21>, the windlng pulley 2 according to Flgures 5 and 7 <with two traçtion cabls recelving grooves 21 and 21a> can take up approxi-I mately double the length of tractlon cable 3, l.e. this ~ wlnding puiley 2 with ln each case to tractlon cable i receivlng grooves has double the capaclty to recelve the ! traction cable by comparison wlth the embodlment according to Figure 1.
::
j ~ Thus in the embodiment according to Flgures 5 and 6 central longltudinal portlons 3a, 3b of the traction cable 3 are loosely pas~ed through the as~oclated hub bores 22, 22c, and ln the sume plane or at the same helght as the tr~ction cable recelvlng groove 21 and 21a on the one hand as well as the hub bore 22 and 22c on the other h~nd two traction cable holes 4, 5 can be disposed ln each case in the perlpheral wall of the houslng la ~o as to lie diametrally opposite one another; however, the diametrally opposing traction cable - 12~ l3~9 holes 4, 5 can also be provided as approxlmately vertically extending slots ln such a way that the two lon~ltudinal portlons of tractlon cable 3a, 3b whlch run over one another are passed to~ether in each case throu~h one slot. The latter statement also applles approprlately to the embodi-ment accordln~ to Fi~ures 7 and 8.
A substantlal difference between the two embodiments accor-dln~ to Fl~ures 5 and 6 on the one hand and Flgures 7 and 8 on the other hand may be seen in the fact that accordlng to Flgures 7 and 8 a diametral hub bore 22 for loose passa~e of a central lon~itudinal portlon 3a i8 provided only for one lower tractlon cable receivin~ ~roove 21, whereas the two ends 3c and 3d of the traction cable 3 are flxed ln the wlndlng pulley hub 15 ln the plane of or at the height of the upper second tractlon cable recelvln~ ~roove 21. Thls flxln~ can be achleved for example by provldin~ corres-pondln~ bllnd bores and throu~h bores - as lndicated ln Flgure 8 - in the wlnding pulley hub 15 whlch receive the outermost end portlon~ of these two cable ends 3c ~nd 3d, so that these outermost end sectlons can then be flxed in the assoclated hub bores preferably by ultrasonlc welding, that ls to say ln an extremely slmple manner, on the hub 15, particularly when the tractlon cable 3 ls a correspondln~
pla~tlc cable and the windln~ pulley 2 or the hub 15 thereof 1~ a correspondlng plastlc part.
As can also be seen from Fisures 7 and 8, by the construc-tlon chosen there out~lde the housln~ 1 two outer loop~ of tractlon cable 3e and 3f are formed whlch - as lndlcated ln Flgure 11 - can be ln enga~ement wlth the corresponding closure elements, the points of appllcation whereof are lndlcated at 24 and 25 (slmllar polnts of appllcatlon 24, 25 of correspondln~ closure elements are aleo shown ln Flgure 9> .
- 13- 21:1314~
Also the hub bores in the winding pulleys Z of the embodi-ment accordlng to Fi~ures 5 to 8 can be shaped in the same way 8S iS explalned in greater detail wlth the ald of Figures 2 and 3.
Whereas in the embodlments according to Figures 5 to 8 the longltudlnal portlons of tract~on cable <including the correspondin~S ends> whlch are inserted lnto the two traction cable recelvlng grooves 21, 21a lylng one above the other run approximately parallel to one another in the starting posltlon of the wlnding pulley ~cf. Figure ~>, Fi~Sures 9 to 11 show constructlons accordln~s to whlch the longltudlnal portlons of tractlon cable ~e.~s. central lon~Sltudinal portlons 3a, 3b ln Flgure 10> whlch are lnserted lnto the two traction cable recelving grooves 21, 21a lylng one above the other cross over one another in the startlng positlon of ths wlndin~ pulley, and preferably run approxlmately at rlght angles to one another. In thls case the con~i;tructlon accordlng to Figures 9 and 10 le eubstantially ad~pted to the example according to Figures 5 and 6, elnd the co~struc-tion accordlng to Flxure 11 18 sub~;tantlally adapted to the ex~lmple ~Iccordlng to Flgures 7 and 8.
Reference may be made again to the two embodlments accordlng to Fi~5ures 5 and 6 on the one hand and Figures 7 and 8 on the other hand.
If one conslders first of all the constructlon and ~rrange-ment, ~:hown in Flgures 5 and 7 and aleo ln Fl~Sure 1, of the coupllng 11 ln the transmis~lon connectlon between the lower end 6a of the rotary actuatlng shaft 6 and the planetary ge~r 7, then the dlsconnectable coupllnE~ element <e. g. z~
claw coupllng part) lla wlth the lower splndle end 6a pro-Jects somewhat from the upper outer face 2~1 of the wlndlng pulley 2 lnto the upper end portlon of the axi~l bore 14 of the wlnding pulley hub 15. Between the underside of the -14- 2113~9 couplin~ element la and the longitudinal portlon <3a ln Figures 1 and 7 and 3b in Figure 5~ of the tractlon cable 3 l~medlately adJacent to thls couplin~ element lla there must be an axial clearance (s ~n Figure 5) ln the axial bore 14 whlch ls so great that the lower shaft end 6a to~ether wlth the coupling element lla can be pushed axlally downwards lnto the axlal bore 14 sufflciently far for the couplin~ to be able to be disconnected ln the deslred manner lf necessary. Accordin~ly the axial length of the end portlon of the axlal bore 14 whlch receives the lower ~haft end 6a and the couplln~ element lla from the correspondln~ outer face 2a of the wlnding pulley 2 to the nearest hub bore 22 or 22c - according to the arrow 13 - must correspond at least to the maxlmum pressure actuiation piath ~correspondlng to the clearance s~ plus at least the couplin~ element lla or the thlckness thereof. Since in the embodlment according to Flgures 5 and 6 two central longltudlnal portlons 3a, 3b travsr~e the wlndln~ pulley hub, whereas in the embodlment according to Flgures 7 and 8 only one single central lon~l-tudlnal portion 3a traverses the windlng pulley hub 15, the axlal dlmenslon or thlcknes~ of the w~ndlng pulley 2 ln the example accordln~ to Fl~ures 7 iand 8 can be kept &maller than ln the case of the example according to Flgures 5 and 6, ~8 a comparlson of the lllustratlons ln Figurei 5 and 7 makes clear.
Reference should also be ~ade ln this connectlon to the fact that the trunnion 17a of the stop element 17 whlch protrudes lnto the ~xlal bore 14 ln the windlng pulley hub 15 only proJects lnto thls bore so far that ln each case the hub bore 22 lylng nearest thereto or the lower hub bore 22 is freed.
With regard to the construction of the tractlon cable holes 4, 5 lt should al~io be mentioned that - ~8 lndicated ln Fl~ure 2 at 4a and 5a - these can have simllnr curved ~ ` - 15- 2 1 1 3 1 4 9 portions to the mouth portions 22a, 22b of the hub bores (Fi~ures 2 and 3> in such a way that during the wlndln~
operation the traction cable 3 can be ~uided or deflected along the curved hole portlons 4a, 5a lar~ely wlthout klnkin~.
As can be deduced from the described embodiments, the use of only one slngle tractlon cable in this rotary closure or rotary tensionln~ closure is particularly preferred. How-ever, in the descrlbed embodlments it is equally possible to provlde at lest two tractlon cables ln a correspondinE
manner, and for example in the case of two tractlon cable receivin~ ~rooves one tractlon cable can be co-ordlnated wlth each of these recelvin~ ~rooves of the wlnding pulley.
Thls rotary closure accordlng to the lnventlon can be pro-duced from any sultable materlal. Thus at least the prlnclpal parts of thls rotary closurs can be made from metal, preferably relatlvely wear-reslstant ll~ht metal.
However, ln a partlcularly preferred constructlon at least the prlnclpal part6 of thls rotary closure are made from pl-stlcs materlal, preferably from an impact-reslstant and wear-res~stant plastlcs material.
In each case thls rotary closure accordln~ to the lnvention can be adapted extremely well to very varled appllcatlons, and it 18 a180 dlstln~ulshed by a partlcularly flat and compact constructlon.
Fl~ure 3 shows a similar horlzontal sectlonal vlew to that of Flgure 2, in whlch the wlnding pulley has already carrled ~ -out a partial turn;
Flgure 4 ~hows a horizontal sectlonal view through the rotary clo~ure ln a varlant in whlch the traction cable holes in the peripheral wall of the housing do not lle ~ :
dlametrally opposite one another;
Flgure 5 shows a vertlcal sectional view (approximately along the llne V-V ln Flgure 6) through a second embodiment of the rotary clo~ure ln whlch the windlng pulley has two tractlon cable receivlng ~rooves and each receivln~ groove t~kes up a central longitudinal portlon of the tractlon cable;
Flgure 6 shows a slmplifled horlzontal sectlonal view approxlnately along the llne VI-VI ln Figure 5;
Flgure 7 shows a slmllar vertical sectional vlew to that of Flgure 5 (sectlon approximately along the line VII-VII in ~ :
Flgure ô> explalnlng a further embodlment ln whlch one tractlon cable recelvlng groove takes up ~ central longltu- :
dln~l portlon and the second tractlon cable receiving ~roove takes up the ends of the tractlon cable; :~
Flgure 8 shows a slmpllfled horlzontal sectlonal vlew approxlmately along the llne VIII-VIII ln Figure 7;
Flgures 9 and ll ~hows ~chematic top vlews of particular varlant~ of the wlnding pulley with gener~l posslble appli-- 6 - 21~ 3 1 ~9 cations of the tractlon cable ~uides;
Flgure 10 shows a slde view of the wlndln~ pulley, approxi-mately along the line X-X in Flgure 9.
The ~eneral construction of the fir~t embodlment of thl~
rotary closure according to the ~nventlon will be explained with the aid of Figure 1.
Thl~ rotary closure contains as an essentlal part a winding pulley 2 which is rotatably mounted in a housing 1 and on whlch - preferably, ln the present case - one ~lngle traction cable 3 can be wound on and unwound, the traction cable being passed through traction cable hole6 or bores 4, 5 whlch are provlded in the perlpheral wall la of the hous~
lng 1. The traction cable 3 co-operates wlth two closure ~;
elements, not shown ln greater detall ln Fi~ure 1, whlch are drawn toyether ad~u~tably but releasably by the rotary closure and can be braced relatlve to one another thereby.
The rotary clocure also contains a rotary actuatlng spindle 6 whlch ls rotatably mounted in the centre of the hou~lng l ~ ~:
and ls ln rotary drlve connection wlth the wlndlng pulley 2 by way of a gearing arran~ement, preferably by way of a planetary gear 7 wlth a sun wheel 8, planet wheels 9 and an lnner gear rlng lO. In thls ca~e it ls also advantageous lf ln a manner whlch is known per se the rotary actuating spindle 6 bears a dlsconnectable coupling element lla of a coupling ll which is provlded ln the sald drive connectlon and can be dl~connected by axlal pressure actuatlon (arrow 13) of the rotary actuating shaft which c~n be exerted agalnst the force of a compresslon spring 12. In thls dls-connected state the wlnding pulley 2 is then freely rota-tably movable, thus facllitatlng a rapid unwindlng of the wound-on traction cable 3 and thereby a rapid release of the ¦ brMcing of the clo~ure elements. The Fiaid lower end 6a of ,, .
21~31~9 the rotary actuatlng shaft 6, together wlth the coupllng element lla borne thereon, protrudes axlally lnto a central axlal bore 14 in the central hub 15 of the wlnding pulley.
As ls also known per se from the constructlons accordlng to EP-B-393 380 and EP-A-412 290 whlch are explalned ln the lntroductlon, the rotary drlve of the wlndlng pulley 2 :
occurs ln such a way that the rotary actuatlng splndle 6 1 rotated ln the desired dlrectlon by way of a rotary knob 16 whlch i~ rotat~ble relatlve to the houslng 1 and which for example cover~ the housln~ 1 on lts upper face llke a cap, ~o that the coupllng 11 rotates the central sun wheel 8 whlch ls ln toothed engagement wlth several planet wheels 9 which ln turn are ln toothed eng~gement wlth a statlonary inner gear rlng 10 and are gulded so as to be freely rota-table on trunnlons 18 whlch are constructed flxed on the :~
upper, first outer face 2a of the wlndlng pulley 2.
Furthermore, followlng the known construction accordlng to ~:
EP-B-393 380 at least one ~top element for ln~-tance in the form of a stop arm 17, or al~o two stop arms 17, can be ~ :
rotatably mounted in the houslng 1 coaxi~lly with respect to the wlnding pulley 2 and on the lower, ~econd outer face 2b of this wlnding pulley 2 opposite the couplln~ 11. After at lea~t approxim~tely two revolutlon~ of the winding pulley thls stop element ~stop arm 17> comes to rest on the houslng 1, 80 that the rotary movement of the winding pulley 2 18 correspondlngly llmlted in order to prevent overstralnlng of the tractlon cnble 3.
Wlth a preferably cyllndrlcal shape, the wlndlng pulley 2 is uccommodated and gulded in a correspondlng portlon of the houslng 1 (as can be seen from Flgure 1>. Furthermore, lt can be advantageou6 lf a trunnion 17a of the stop element 17 protrudes from below from the lower, ~econd outer face 2b of the wlnding pulley a 6hort dl6tance lnto the axlal bore 14 - 8 - '~113~
of the wlndlng pulley hub 15. In thls case the ~top element 17 or one of the two ~top ele~ent~ 17 al~o has a ~econd trunnlon 17b wh~ch 1~ dlsposed coaxlally wlth the flr~t trunnlon protrudlng lnto the axial bore 14 and opposlte thereto and engages ln a bearlng bore 19 whlch 1~ suitably provlded ln a base wall lb of the housing 1.
Flnally, wlth regard to the general con~tructlon of the ~ :rotary closure lt ~hould al~o be mentloned that - as ln the two known con~tructlons mentioned above - the closure also contaln~ a releasable ratchet arran~ement 20 which 18 con~
structed for fixlng the rotary actuatlng shaft 6 and the :
wlnding pulley 2 when an adJustment of the rotary closure is carried o~t.
A clrcular traction cable recelving ~roove 21 ls machlned around the outer circumference of the wlndlng pulley 2, whereln the axlal dlmenslon <wldth> cf the sald groove 18 ~:
slightly greater than the diameter of the tractlon cable 3 and the radlal dlmenslon thereof ls sufflclently great to be able to take up a sufficiently large longltudlnal portlon of the tractlon cuble 2.
A slgnlflcant ldea of the lnvention i~ applled here, whereby a hub bore 22 which dlametrally traver~es the central hub reglon <hub 15) of the windlng pulley 2 18 provlded ln the ::
plane of or at the helght of thls clrcular traction cable receivlng groove 21. The tractlon cable 3 18 loosely passed wlth a longltudlnal portion located between lts two ends, . .
that 18 to say wlth a central longltudlnal portlon 3a, through the hub bore 22, l.e. the diameter of the hub bore 22 18 accordlngly only ~ust ~llghtly greater than the dlameter of the tractlon cable 3, but preferably ~omewhat smaller than the axlal width of the tractlon cable recelvlng groove 21 <as Flgure 1 shows). Thls sltuatlon 18 ~180 lllustrated ln the horlzontal sectional vlew of Flgures 2 and 3.
Flgures 2 and 3 also show that the two outer mouth portlons 22a, 22b of the hub bore 22 increaslngly widen in the radial dlrection in such a way that - when considered in a top vlew of the windln~ pulley 2 ~Fi~ures 2 and 3> and ln the direc-tlon of winding thereof <arrow 23) - thsy extend so that they are curved backwards wlth the groove width <axlal dlmension wlth respect to the wlndlng pulley 2> remalnlng constant, as can be seen partlcularly clearly in Flgure 2 at 22a' and 22b'. This permlts a relatlvely smooth wlndlng on ~ -of the central longltudlnal portlon 3a of the tractlon cable 3 in the transition from the hub bore 22 to the outer clr-cumferentlal wall of the hub 15. The latter is clear from a comparlson between the stsrtin~ positlon of the wlnding pulley 2 in Flgure 2 and the poeltlon of the wlndlng pulley 2 ln Figure 3, ln which the winding pulley 2 has carried out a flrst part-turn after the startlng position.
In the embodiment accordln~ to Flgures 1 to 3 the t~o trsctlon cable holes 4, 5 ln the perlpheral wall la of the housing are dlsposed in the same plane as the tractlon cable recelvlng groove 21 and the hub bore 22, and they lle approxlmately dlametrally opposlte one another. Thls con-structlon ls sultable for very varied posslble appllcations of the rotary closure accordln~ to the inventlon.
One varlant of the prevlously descrlbed construction is lllustrated in Figure 4. Accordlng to thl~ the two traction cable holes 4', 5' are also disposed ln the same plane as the tractlon cable recelvlng groove 21 and the hub bore 22, although they do not lle diametrally cppo~ite one another but have a perlpheral spacing UA of les6 than 180-, prefer-ably approxlmately 90, from one another. Thls can be advantageou~ above all ln sports shoes, particularly ~ki boot~, lf the rotary closure ls to be flxed for instance on , : " ~ , , ,. .",,, ,;; -, :r : , -- lo- 21131~9 a so-called spoller.
In the embodiment of the rotary closure which 18 de~crlbed above, ln whlch only one 5ingle tractlon cable recelvlng groove 21 is provlded on the outer circumference of the wlnding pulley 2, the two free ends of the tra~tion cable 3 are each fixed on one of the two closure el~ments which can be braced relatlve to one another - and are not shown in greater detail - whll~t the central lon~itudinal portlon 3a of the traction cable 3 i~ passed loosely through the hub bora 22.
A further embodlment of the rotary closure will be explained wlth the ald of Flgures 5 and 6. Slnce the yeneral con-structlon of thls embodlment largely corre~ponds ln lts essentlal part~ to the general con~tructlon explalned ln detall wlth the ald of Fl~ure l, the same parts are ldentl-fled by the same reference numerale, ~o that a repeated explanatlon thereof 18 unnece~sary. Thus thls embodlment accordlng to Flgures 5 and 6 al~o comprises a houslntg 1, a wlndin~ pulley 2 rotatably mounted thereln for wlnding on and unwlndlng preferably of one slngle traction cable 3, a rotary actuatlng shaft 6 rotatably mounted ln the centre of the houslng 1, a gearlng arrangement, preferably ln the form of planetary gear 7 for drivlng the windlng pulley 2, a coupllng ll between the rotary actuatlng shaft 6 and the planetary gear 7 a~ well ~ a ratchet arrangement 20 and at least one stop arm 17 to limlt the rotary movement of the wlndlng pulley 2.
A speclal feature of thl6 embodlment of the rotary closure whlch 18 lllustrated ln Flgures 5 and 6, but also wlth the ald of Flgures 7 and 8, may be sean above all in the fact the the wlndlng pulley 2 has two clrcular tractlon cable receivin~ grooves runnlng around ltc outer circumference whlch can both be constructed sub tantially the same slze \
3 1 ~ 9 and ln the manner explained wlth the aid of Figure 1. These two tractlon cable recelvlng grooves 21, 21a are - cf.
Flgures 5 and 7 - machlned lnto the wlndlng pulley 2 (from the outer clrcumference thereof) in two planes or at two height~ which are axially spaced and lie parallel to one another. In the construction according to Flgures 5 and 6, one assoclated dlametral hub bore 22 or 22c respectlvely ls provided for each of the two traction cable receiving grooves 21, 21a. In thls case central longltudlnal portlons 3a or 3b respectively of the tractlon cable 3 are passed through the two hub bores 22, 22c in such a way that on the one hand the two ends 3c and 3d of this traction cable 3 located outslde the rotary closure and on the other hand an outer loop of traction cable 3e formed by a longltudinal portlon of tractlon cable located outside the housln~ 1 are in closing en~agement with the closure elements, as fihown with the ald of Figure 9. In compari~on to the flrst embodlment explalned with the ald of Figures 1 to 3 (with only one traction cable receiving groove 21>, the windlng pulley 2 according to Flgures 5 and 7 <with two traçtion cabls recelving grooves 21 and 21a> can take up approxi-I mately double the length of tractlon cable 3, l.e. this ~ wlnding puiley 2 with ln each case to tractlon cable i receivlng grooves has double the capaclty to recelve the ! traction cable by comparison wlth the embodlment according to Figure 1.
::
j ~ Thus in the embodiment according to Flgures 5 and 6 central longltudinal portlons 3a, 3b of the traction cable 3 are loosely pas~ed through the as~oclated hub bores 22, 22c, and ln the sume plane or at the same helght as the tr~ction cable recelvlng groove 21 and 21a on the one hand as well as the hub bore 22 and 22c on the other h~nd two traction cable holes 4, 5 can be disposed ln each case in the perlpheral wall of the houslng la ~o as to lie diametrally opposite one another; however, the diametrally opposing traction cable - 12~ l3~9 holes 4, 5 can also be provided as approxlmately vertically extending slots ln such a way that the two lon~ltudinal portlons of tractlon cable 3a, 3b whlch run over one another are passed to~ether in each case throu~h one slot. The latter statement also applles approprlately to the embodi-ment accordln~ to Fi~ures 7 and 8.
A substantlal difference between the two embodiments accor-dln~ to Fl~ures 5 and 6 on the one hand and Flgures 7 and 8 on the other hand may be seen in the fact that accordlng to Flgures 7 and 8 a diametral hub bore 22 for loose passa~e of a central lon~itudinal portlon 3a i8 provided only for one lower tractlon cable receivin~ ~roove 21, whereas the two ends 3c and 3d of the traction cable 3 are flxed ln the wlndlng pulley hub 15 ln the plane of or at the height of the upper second tractlon cable recelvln~ ~roove 21. Thls flxln~ can be achleved for example by provldin~ corres-pondln~ bllnd bores and throu~h bores - as lndicated ln Flgure 8 - in the wlnding pulley hub 15 whlch receive the outermost end portlon~ of these two cable ends 3c ~nd 3d, so that these outermost end sectlons can then be flxed in the assoclated hub bores preferably by ultrasonlc welding, that ls to say ln an extremely slmple manner, on the hub 15, particularly when the tractlon cable 3 ls a correspondln~
pla~tlc cable and the windln~ pulley 2 or the hub 15 thereof 1~ a correspondlng plastlc part.
As can also be seen from Fisures 7 and 8, by the construc-tlon chosen there out~lde the housln~ 1 two outer loop~ of tractlon cable 3e and 3f are formed whlch - as lndlcated ln Flgure 11 - can be ln enga~ement wlth the corresponding closure elements, the points of appllcation whereof are lndlcated at 24 and 25 (slmllar polnts of appllcatlon 24, 25 of correspondln~ closure elements are aleo shown ln Flgure 9> .
- 13- 21:1314~
Also the hub bores in the winding pulleys Z of the embodi-ment accordlng to Fi~ures 5 to 8 can be shaped in the same way 8S iS explalned in greater detail wlth the ald of Figures 2 and 3.
Whereas in the embodlments according to Figures 5 to 8 the longltudlnal portlons of tract~on cable <including the correspondin~S ends> whlch are inserted lnto the two traction cable recelvlng grooves 21, 21a lylng one above the other run approximately parallel to one another in the starting posltlon of the wlnding pulley ~cf. Figure ~>, Fi~Sures 9 to 11 show constructlons accordln~s to whlch the longltudlnal portlons of tractlon cable ~e.~s. central lon~Sltudinal portlons 3a, 3b ln Flgure 10> whlch are lnserted lnto the two traction cable recelving grooves 21, 21a lylng one above the other cross over one another in the startlng positlon of ths wlndin~ pulley, and preferably run approxlmately at rlght angles to one another. In thls case the con~i;tructlon accordlng to Figures 9 and 10 le eubstantially ad~pted to the example according to Figures 5 and 6, elnd the co~struc-tion accordlng to Flxure 11 18 sub~;tantlally adapted to the ex~lmple ~Iccordlng to Flgures 7 and 8.
Reference may be made again to the two embodlments accordlng to Fi~5ures 5 and 6 on the one hand and Figures 7 and 8 on the other hand.
If one conslders first of all the constructlon and ~rrange-ment, ~:hown in Flgures 5 and 7 and aleo ln Fl~Sure 1, of the coupllng 11 ln the transmis~lon connectlon between the lower end 6a of the rotary actuatlng shaft 6 and the planetary ge~r 7, then the dlsconnectable coupllnE~ element <e. g. z~
claw coupllng part) lla wlth the lower splndle end 6a pro-Jects somewhat from the upper outer face 2~1 of the wlndlng pulley 2 lnto the upper end portlon of the axi~l bore 14 of the wlnding pulley hub 15. Between the underside of the -14- 2113~9 couplin~ element la and the longitudinal portlon <3a ln Figures 1 and 7 and 3b in Figure 5~ of the tractlon cable 3 l~medlately adJacent to thls couplin~ element lla there must be an axial clearance (s ~n Figure 5) ln the axial bore 14 whlch ls so great that the lower shaft end 6a to~ether wlth the coupling element lla can be pushed axlally downwards lnto the axlal bore 14 sufflciently far for the couplin~ to be able to be disconnected ln the deslred manner lf necessary. Accordin~ly the axial length of the end portlon of the axlal bore 14 whlch receives the lower ~haft end 6a and the couplln~ element lla from the correspondln~ outer face 2a of the wlnding pulley 2 to the nearest hub bore 22 or 22c - according to the arrow 13 - must correspond at least to the maxlmum pressure actuiation piath ~correspondlng to the clearance s~ plus at least the couplin~ element lla or the thlckness thereof. Since in the embodlment according to Flgures 5 and 6 two central longltudlnal portlons 3a, 3b travsr~e the wlndln~ pulley hub, whereas in the embodlment according to Flgures 7 and 8 only one single central lon~l-tudlnal portion 3a traverses the windlng pulley hub 15, the axlal dlmenslon or thlcknes~ of the w~ndlng pulley 2 ln the example accordln~ to Fl~ures 7 iand 8 can be kept &maller than ln the case of the example according to Flgures 5 and 6, ~8 a comparlson of the lllustratlons ln Figurei 5 and 7 makes clear.
Reference should also be ~ade ln this connectlon to the fact that the trunnion 17a of the stop element 17 whlch protrudes lnto the ~xlal bore 14 ln the windlng pulley hub 15 only proJects lnto thls bore so far that ln each case the hub bore 22 lylng nearest thereto or the lower hub bore 22 is freed.
With regard to the construction of the tractlon cable holes 4, 5 lt should al~io be mentioned that - ~8 lndicated ln Fl~ure 2 at 4a and 5a - these can have simllnr curved ~ ` - 15- 2 1 1 3 1 4 9 portions to the mouth portions 22a, 22b of the hub bores (Fi~ures 2 and 3> in such a way that during the wlndln~
operation the traction cable 3 can be ~uided or deflected along the curved hole portlons 4a, 5a lar~ely wlthout klnkin~.
As can be deduced from the described embodiments, the use of only one slngle tractlon cable in this rotary closure or rotary tensionln~ closure is particularly preferred. How-ever, in the descrlbed embodlments it is equally possible to provlde at lest two tractlon cables ln a correspondinE
manner, and for example in the case of two tractlon cable receivin~ ~rooves one tractlon cable can be co-ordlnated wlth each of these recelvin~ ~rooves of the wlnding pulley.
Thls rotary closure accordlng to the lnventlon can be pro-duced from any sultable materlal. Thus at least the prlnclpal parts of thls rotary closurs can be made from metal, preferably relatlvely wear-reslstant ll~ht metal.
However, ln a partlcularly preferred constructlon at least the prlnclpal part6 of thls rotary closure are made from pl-stlcs materlal, preferably from an impact-reslstant and wear-res~stant plastlcs material.
In each case thls rotary closure accordln~ to the lnvention can be adapted extremely well to very varled appllcatlons, and it 18 a180 dlstln~ulshed by a partlcularly flat and compact constructlon.
Claims (15)
1. Rotary closure for adjustable and releasable drawing together of two closure elements which can be braced rela-tive to one another, comprising a) a traction cable (3) which can be wound and co-operates with one of the two closure elements, b) a winding pulley (2) rotatably mounted in a housing (1) for winding on and unwinding of the traction cable (3), wherein this traction cable is passed through holes (4, 5) in the peripheral wall (1a), c) a rotary actuating spindle (6) which is rotatably mounted substantially in the centre of the housing (1) and is in drive connection with the winding pulley by way of a gearing arrangement (7), d) a releasable ratchet arrangement (20) for fixing the rotary actuating spindle (6) and the winding pulley (2) in a setting of the rotary closure, characterised in that e) in the plane of at least one circular traction cable receiving groove (21, 21a) which runs around the outer circumference of the winding pulley (2) there is pro-vided a hub bore (22, 22c) which diametrally traverses a central hub region of this winding pulley and through which the traction cable (3) is loosely passed with a logitudinal portion (3a, 3b) located between its two ends.
2. Rotary closure as claimed in Claim 1, characterised in that the two outer mouth portions (22a, 22b) of the hub bore (22, 22c) in the winding pulley are increasingly widened outwards in the radial direction in such a way that - when considered in a top view of the winding pulley (2) and in the direction of winding thereof (23) - they extend so that they are curved backwards with the groove width remaining constant.
3. Rotary closure as claimed in Claim 2, characterised in that two traction cable holes (4, 5) are disposed in the peripheral housing wall (1a) in the same plane as the traction cable receiving groove (21, 21a) and lie approxi-mately diametrally opposite one another.
4. Rotary closure as claimed in Claim 2, characterised in that two traction cable holes (4', 5') are disposed in the peripheral housing wall (1a) in the same plane as the trac-tion cable receiving groove (21, 21a) and have a peripheral spacing of less than 180', preferably of approximately 90°
from one another.
from one another.
5. Rotary closure as claimed in Claim 2, characterised in that in the case of only one traction cable receiving groove (21) on the outer circumference of the winding pulley (2) the two ends of the traction cable (3) are each fixed on one of the two closure elements which can be braced relative to one another.
6. Rotary closure as claimed in Claim 2, characterised in that the winding pulley (2) has running around its outer circumference two traction cable receiving grooves (21, 21a) machined in two planes lying parallel to one another, where-in a diametral hub bore (22, 22c) for loose passage of a central longitudinal portion (3a, 3b) of the traction cable (3) is provided at least for one traction cable receiving groove and two traction cable receiving holes (4, 5) lying approximately diametrally opposite one another in the peripheral housing wall (1a) are co-ordinated with both traction cable receiving grooves.
7. Rotary closure as claimed in Claim 6, characterised in that a diametral hub bore (22, 22c) is provided which is associated with each of the two traction cable receiving grooves (21, 21a), wherein central longitudinal portions (3a, 3b) of the traction cable (3) are loosely passed through both hub bores in such a way that on the one hand the two ends (3c, 3d) of this traction cable and on the other hand an outer loop (3e) of traction cable formed by a longitudinal portion of traction cable located outside the housing (1) are in closing engagement with the closure elements.
8. Rotary closure as claimed in Claim 6, characterised in that the two ends (3c, 3d) of the traction cable (3) are fixed in the plane of the second traction cable receiving groove (21a) in the winding pulley hub (15), preferably by ultrasonic welding, wherein two outer loops (3e, 3f) of traction cable formed outside the housing (1) are in closing engagement with the closure elements.
9. Rotary closure as claimed in Claim 6, characterised in that the longitudinal portions of traction cable inserted into the two traction cable receiving grooves (21, 21a) extend approximately parallel to one another in the starting position of the winding pulley (2).
10. Rotary closure as claimed in Claim 6, characterised in that the longitudinal portions of traction cable inserted into the two traction cable receiving grooves (21, 21a) cross over one another, preferably extending approximately at right angles to one another, in the starting position of the winding pulley (2).
11. Rotary closure as claimed in Claim 1, in which one end (6a) of the rotary actuating spindle (6) protrudes into a central axial bore (14) in the winding pulley hub (15) and bears a disconnectable coupling element (11a) of a coupling (11) which is provided in the drive connection between the rotary actuating spindle and the gearing arrangement and which can be disconnected by axial pressure actuation (13) of the rotary actuating spindle which can be exerted against a spring force, characterised in that the axial length of the end portion of the axial bore (14) which receives one end (6a) of the rotary actuating spindle (6) and the coup-ling element (11a) from the corresponding outer face (2a) of the winding pulley (2) to the nearest hub bore (22, 22c) corresponds at least to the maximum pressure actuation path plus at least the coupling element (11a).
12. Rotary closure as claimed in Claim 11, in which at least one stop element (17) is rotatably mounted in the housing (1) coaxially with respect to the winding pulley (2) and on the second outer face (2b) of the winding pulley opposite the coupling (11), the stop element (17) coming to rest on the housing after at least approximately two revolutions of the winding pulley and thereby limiting the rotary movement of the winding pulley, characterised in that a trunnion (17a) of the stop element (17) protrudes from the second outer face (2b) of the winding pulley into the axial bore (14) of the winding pulley hub (15), freeing the nearest hub bore (22).
13. Rotary closure as claimed in Claim 12, characterised in that the stop element (17) has a second trunnion (17b) which is disposed coaxially with the first trunnion (17a) protruding into the axial bore (14) of the winding pulley hub (15) and opposite thereto and engages in a bearing bore (19) which is suitably provided in a base wall (1b) of the housing (1).
14. Rotary closure as claimed in Claim 1, characterised in that at least the principal parts of this rotary closure are made from plastics material, preferably from an impact-resistant and wear-resistant plastics material.
15. Rotary closure as claimed in Claim 1, characterised in that at least the principal parts of this rotary closure are made from metal, preferably relatively wear-resistant light metal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4302401A DE4302401A1 (en) | 1993-01-28 | 1993-01-28 | Rotary fastening for two closure elements |
| DEP4302401.7 | 1993-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2113149A1 true CA2113149A1 (en) | 1994-07-29 |
Family
ID=6479148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002113149A Abandoned CA2113149A1 (en) | 1993-01-28 | 1994-01-10 | Rotary closure |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0615705B1 (en) |
| JP (1) | JPH06237802A (en) |
| AT (1) | ATE149804T1 (en) |
| CA (1) | CA2113149A1 (en) |
| DE (2) | DE4302401A1 (en) |
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| JP2019017962A (en) * | 2017-07-20 | 2019-02-07 | 博 和栗 | Adjustor for tightening condition of shoelace |
| KR20220003067A (en) | 2019-05-01 | 2022-01-07 | 보아 테크놀러지, 인크. | reel-based closure system |
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| US2526216A (en) * | 1949-01-12 | 1950-10-17 | Raymond J Gartner | Binding band tensioning device |
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| AT244804B (en) * | 1962-11-08 | 1966-01-25 | Fred Doriath | Quick release device for shoe lacing |
| FR2177294A6 (en) * | 1970-09-23 | 1973-11-02 | Weinmann Ag | |
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-
1993
- 1993-01-28 DE DE4302401A patent/DE4302401A1/en not_active Withdrawn
- 1993-12-21 EP EP93120637A patent/EP0615705B1/en not_active Expired - Lifetime
- 1993-12-21 DE DE59305774T patent/DE59305774D1/en not_active Expired - Fee Related
- 1993-12-21 AT AT93120637T patent/ATE149804T1/en not_active IP Right Cessation
-
1994
- 1994-01-10 CA CA002113149A patent/CA2113149A1/en not_active Abandoned
- 1994-01-28 JP JP6008669A patent/JPH06237802A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10772388B2 (en) | 2013-06-05 | 2020-09-15 | Boa Technology Inc. | Integrated closure device components and methods |
| EP3287032A4 (en) * | 2015-07-21 | 2018-12-19 | Ho Sub Lee | Shoestring tightening device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06237802A (en) | 1994-08-30 |
| EP0615705A1 (en) | 1994-09-21 |
| DE59305774D1 (en) | 1997-04-17 |
| ATE149804T1 (en) | 1997-03-15 |
| EP0615705B1 (en) | 1997-03-12 |
| DE4302401A1 (en) | 1994-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |