{"id":19345,"date":"2026-10-06T07:54:30","date_gmt":"2026-10-06T07:54:30","guid":{"rendered":"https:\/\/tuohaihardware.com\/?p=19345"},"modified":"2026-10-06T07:54:30","modified_gmt":"2026-10-06T07:54:30","slug":"co-je-to-jack-chain","status":"publish","type":"post","link":"https:\/\/tuohaihardware.com\/cs\/what-is-jack-chain\/","title":{"rendered":"Co je \u0159et\u011bz typu Jack?"},"content":{"rendered":"

K zav\u011b\u0161en\u00ed cedule, sv\u00edtidla nebo displeje pot\u0159ebujete sv\u011bteln\u00fd \u0159et\u011bz. N\u011bkolik produkt\u016f se prod\u00e1v\u00e1 jako \u201czvedac\u00ed \u0159et\u011bz\u201d, ale jejich \u010dl\u00e1nky, velikosti a nosnost se mohou li\u0161it. Co v\u00e1m n\u00e1zev vlastn\u011b \u0159\u00edk\u00e1? Tento \u010dl\u00e1nek vysv\u011btluje, jak se zvedac\u00ed \u0159et\u011bz vyr\u00e1b\u00ed, kde se pou\u017e\u00edv\u00e1 a kde jsou jeho limity.<\/p>\n

\u0158et\u011bz zved\u00e1ku<\/a> je lehk\u00fd, bez\u0161vov\u00fd \u0159et\u011bz vyroben\u00fd z tvarovan\u00fdch dr\u00e1t\u011bn\u00fdch \u010dl\u00e1nk\u016f, kter\u00e9 se vz\u00e1jemn\u011b propojuj\u00ed bez svaru v ka\u017ed\u00e9m \u010dl\u00e1nku.<\/strong> Jednoduch\u00fd z\u00e1v\u011bsn\u00fd \u0159et\u011bz je b\u011b\u017enou formou; n\u011bkter\u00e9 katalogy uv\u00e1d\u011bj\u00ed jako samostatn\u00fd typ produktu i dvojit\u00fd z\u00e1v\u011bsn\u00fd \u0159et\u011bz. Z\u00e1v\u011bsn\u00fd \u0159et\u011bz se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 k zav\u011b\u0161en\u00ed sv\u00edtidel, reklamn\u00edch cedul\u00ed, displej\u016f a dekorativn\u00edch p\u0159edm\u011bt\u016f. Samotn\u00fd n\u00e1zev v\u00e1m ne\u0159\u00edk\u00e1, jakou v\u00e1hu konkr\u00e9tn\u00ed \u0159et\u011bz unese.<\/p>\n

\"Propleten\u00e9<\/p>\n

Jak se vyr\u00e1b\u00ed \u0159et\u011bz Jack?<\/h2>\n

Typick\u00fd \u0159et\u011bz s jedn\u00edm zved\u00e1kem za\u010d\u00edn\u00e1 tenk\u00fdm kovov\u00fdm dr\u00e1tem. Ka\u017ed\u00fd kus je ohnut\u00fd do \u010dl\u00e1nku ve tvaru osmi\u010dky a spojen s dal\u0161\u00edm. \u010cl\u00e1nky dr\u017e\u00ed pohromad\u011b sp\u00ed\u0161e d\u00edky sv\u00e9mu tvaru ne\u017e sva\u0159ovan\u00e9mu spoji. Proto dodavatel\u00e9 klasifikuj\u00ed \u0159et\u011bz s jedn\u00edm zved\u00e1kem jako nesva\u0159ovan\u00fd \u0159et\u011bz<\/strong><\/a>.<\/p>\n

Tvarovan\u00e9 \u010dl\u00e1nky dod\u00e1vaj\u00ed \u0159et\u011bzu jeho zn\u00e1m\u00fd, kompaktn\u00ed vzhled a umo\u017e\u0148uj\u00ed mu flexibiln\u00ed zav\u011b\u0161en\u00ed. \u010casto jej pozn\u00e1te podle opakuj\u00edc\u00edch se dr\u00e1t\u011bn\u00fdch smy\u010dek, ale vzhled je pouze v\u00fdchoz\u00edm bodem. Pr\u016fm\u011br dr\u00e1tu, rozm\u011bry \u010dl\u00e1nk\u016f, materi\u00e1l a zp\u016fsob jejich tvarov\u00e1n\u00ed se mohou u jednotliv\u00fdch produkt\u016f li\u0161it.<\/p>\n

\u201cBezva\u0159ov\u00e1\u201d popisuje konstrukci spoje. Nen\u00ed to ne<\/strong> znamen\u00e1, \u017ee ka\u017ed\u00fd bez\u0161vov\u00fd \u0159et\u011bz m\u00e1 stejnou nosnost nebo \u017ee otev\u0159en\u00fd \u010dl\u00e1nek lze zat\u011b\u017eovat v libovoln\u00e9m sm\u011bru. Zvedac\u00ed \u0159et\u011bz se obecn\u011b vyr\u00e1b\u00ed pro lehk\u00e9 pr\u00e1ce, kde nen\u00ed vy\u017eadov\u00e1na vysok\u00e1 pevnost.<\/p>\n

Co znamen\u00e1 jednoduch\u00fd a dvojit\u00fd zved\u00e1k v katalogu?<\/h3>\n

Jednoduch\u00fd zvedac\u00ed \u0159et\u011bz je v\u00fd\u0161e popsan\u00fd typ osmi\u010dkov\u00e9ho \u0159et\u011bzu. V\u00fdrobci uv\u00e1d\u011bj\u00ed dvojit\u00fd zvedac\u00ed \u0159et\u011bz jako dal\u0161\u00ed typ produktu. Ka\u017ed\u00e9mu typu ud\u00e1vaj\u00ed vlastn\u00ed rozm\u011bry \u010dl\u00e1nk\u016f a nosnost. Pokud pot\u0159ebujete identifikovat tvar \u010dl\u00e1nku u konkr\u00e9tn\u00edho produktu, zkontrolujte v\u00fdkres nebo vzorek dodavatele.<\/p>\n

N\u00e1zvy v\u00e1m napov\u00ed, kter\u00fd typ v katalogu hledat. Nestanovuj\u00ed, \u017ee \u0159et\u011bz s dvojit\u00fdm zved\u00e1kem bude v\u017edy n\u00e9st v\u00edce ne\u017e jeden \u0159et\u011bz se stejn\u00fdm \u010d\u00edslem obchodn\u00ed velikosti. Porovnejte rad\u011bji specifikace konkr\u00e9tn\u00edch produkt\u016f.<\/p>\n

K \u010demu se pou\u017e\u00edv\u00e1 \u0159et\u011bz Jack?<\/h2>\n

\u0158et\u011bz Jack se dob\u0159e osv\u011bd\u010d\u00ed, kdy\u017e pot\u0159ebujete flexibiln\u00ed \u0159et\u011bz s mal\u00fdmi \u010dl\u00e1nky pro lehk\u00e9 zav\u011b\u0161en\u00ed nebo dekorativn\u00ed \u00fakol<\/strong>. Mezi b\u011b\u017en\u00e9 p\u0159\u00edklady pat\u0159\u00ed zav\u011b\u0161en\u00ed sv\u00edtidel, zav\u011b\u0161en\u00ed reklamn\u00edch cedul\u00ed, podep\u0159en\u00ed maloobchodn\u00edch displej\u016f a p\u0159id\u00e1n\u00ed \u0159et\u011bzu k dekorativn\u00edmu kov\u00e1n\u00ed. Dodavatel\u00e9 elektroinstalac\u00ed a osv\u011btlen\u00ed tak\u00e9 prod\u00e1vaj\u00ed \u0159et\u011bzy pro podep\u0159en\u00ed sv\u00edtidel.<\/p>\n

Tyto p\u0159\u00edklady popisuj\u00ed pou\u017eit\u00ed, nikoliv v\u0161eobecn\u00e9 schv\u00e1len\u00ed pro ka\u017edou instalaci. Z\u00e1v\u011bsn\u00e1 cedule nebo p\u0159\u00edslu\u0161enstv\u00ed st\u00e1le pot\u0159ebuje \u0159et\u011bz s vhodn\u00fdm nosn\u00fdm limitem, kompatibiln\u00edmi koncovkami a pevn\u00fdmi mont\u00e1\u017en\u00edmi body. Pokud se displej pohybuje, naraz\u00ed do n\u011bj nebo vis\u00ed na m\u00edst\u011b, kde by jeho selh\u00e1n\u00ed mohlo zp\u016fsobit zran\u011bn\u00ed osob nebo po\u0161kozen\u00ed majetku, posu\u010fte celou instalaci a ve\u0161ker\u00e9 p\u0159\u00edslu\u0161n\u00e9 po\u017eadavky na instalaci. B\u011b\u017en\u00fd p\u0159\u00edklad pou\u017eit\u00ed nebo samotn\u00e1 nosnost \u0159et\u011bzu nesta\u010d\u00ed.<\/p>\n

\u0158et\u011bzov\u00fd zved\u00e1k lze tak\u00e9 zvolit podle vzhledu. Kr\u00e1tk\u00fd, \u00fahledn\u00fd vzor \u010dl\u00e1nk\u016f a dostupn\u00e9 povrchov\u00e9 \u00fapravy mohou hr\u00e1t roli p\u0159i viditeln\u00e9m zobrazen\u00ed. Tyto vizu\u00e1ln\u00ed v\u00fdhody nenahrazuj\u00ed kontrolu zat\u00ed\u017een\u00ed.<\/p>\n

\"zlat\u00e9<\/p>\n

Co znamenaj\u00ed \u0161t\u00edtky s materi\u00e1lem, povrchovou \u00fapravou a velikost\u00ed?<\/h2>\n

\u0158et\u011bz Jack se prod\u00e1v\u00e1 v n\u011bkolika materi\u00e1lech a povrchov\u00fdch \u00faprav\u00e1ch. N\u011bkter\u00e9 produkty pou\u017e\u00edvaj\u00ed n\u00edzkouhl\u00edkovou ocel se zinkovanou nebo galvanizovanou povrchovou \u00fapravou. Jin\u00e9 produktov\u00e9 \u0159ady nab\u00edzej\u00ed nerez<\/a>, masivn\u00ed mosaz<\/a>, nebo hlin\u00edk. Niklov\u00e1 nebo \u010dern\u00e1 povrchov\u00e1 \u00faprava popisuje vzhled nebo o\u0161et\u0159en\u00ed povrchu; sama o sob\u011b neidentifikuje kov pod n\u00edm. Mosazn\u00e1 povrchov\u00e1 \u00faprava tak\u00e9 nen\u00ed tot\u00e9\u017e co \u0159et\u00edzek z masivn\u00ed mosazi.<\/p>\n

Materi\u00e1l a povrchov\u00e1 \u00faprava mohou ovlivnit vzhled a vhodnost pro dan\u00e9 prost\u0159ed\u00ed. Nap\u0159\u00edklad \u0159et\u011bz s pota\u017eenou ocel\u00ed a \u0159et\u011bz z nerezov\u00e9 oceli by nem\u011bly b\u00fdt pova\u017eov\u00e1ny za identick\u00e9, pokud jde o vlhkost nebo korozi. Dostupnost a v\u00fdkon z\u00e1vis\u00ed na konkr\u00e9tn\u00edm produktu. Samotn\u00e1 povrchov\u00e1 \u00faprava nezvy\u0161uje jeho nosnost.<\/p>\n

Katalogy mohou uv\u00e1d\u011bt velikost obchodu, nap\u0159\u00edklad \u0158et\u011bz zved\u00e1ku #16<\/a><\/strong>. Toto \u010d\u00edslo je ozna\u010den\u00ed velikosti produktu, nikoli univerz\u00e1ln\u00ed \u00fadaj o pr\u016fm\u011bru dr\u00e1tu nebo nosnosti. Chcete-li porozum\u011bt konkr\u00e9tn\u00edmu \u0159et\u011bzu, hledejte tyto samostatn\u00e9 polo\u017eky:<\/p>\n\n\n\n\n\n\n\n\n\n
Polo\u017eka katalogu<\/th>\nCo v\u00e1m to pom\u016f\u017ee zkontrolovat<\/th>\n<\/tr>\n<\/thead>\n
Typ \u0159et\u011bzu<\/td>\nZda je produkt jednoduch\u00fd nebo dvojit\u00fd \u0159et\u011bzov\u00fd zved\u00e1k<\/td>\n<\/tr>\n
Pr\u016fm\u011br dr\u00e1tu<\/td>\nSkute\u010dn\u00e1 tlou\u0161\u0165ka dr\u00e1tu pou\u017eit\u00e9ho pro spojen\u00ed<\/td>\n<\/tr>\n
D\u00e9lka vnit\u0159n\u00edho \u010dl\u00e1nku<\/td>\nZda \u010dl\u00e1nek pasuje na zam\u00fd\u0161len\u00fd h\u00e1\u010dek nebo konektor<\/td>\n<\/tr>\n
Materi\u00e1l a povrchov\u00e1 \u00faprava<\/td>\nKov a povrch dodan\u00fd pro dan\u00fd produkt<\/td>\n<\/tr>\n
Mezn\u00ed nosnost (WLL)<\/a><\/td>\nMaxim\u00e1ln\u00ed udan\u00e9 pracovn\u00ed zat\u00ed\u017een\u00ed za podm\u00ednek stanoven\u00fdch v\u00fdrobcem<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Dva dodavatel\u00e9 mohou pou\u017e\u00edt stejn\u00e9 \u010d\u00edslo obchodn\u00ed velikosti, ale uv\u00e1d\u011bt r\u016fzn\u00e9 rozm\u011bry nebo nosnosti. Pou\u017eijte aktu\u00e1ln\u00ed list pro p\u0159esn\u00fd \u0159et\u011bz, kter\u00fd kupujete. Nep\u0159ev\u00e1d\u011bjte \u010d\u00edslo obchodn\u00ed velikosti na tlou\u0161\u0165ku dr\u00e1tu ani nep\u0159edpokl\u00e1dejte, \u017ee v\u00e1m to d\u00e1v\u00e1 univerz\u00e1ln\u00ed nosnost.<\/p>\n

Jak\u00e9 jsou limity Jack Chainu?<\/h2>\n

\u0158et\u011bz zved\u00e1ku nen\u00ed zvedac\u00ed \u0159et\u011bz<\/a>.<\/strong> V\u00fdrobci \u0159et\u011bzov\u00fdch zved\u00e1k\u016f s jedn\u00edm zdvihem v\u00fdslovn\u011b varuj\u00ed p\u0159ed zved\u00e1n\u00edm a zdvih\u00e1n\u00edm nad hlavou. Jeho lehk\u00e9 z\u00e1v\u011bsn\u00e9 pou\u017eit\u00ed z n\u011bj ned\u011bl\u00e1 vhodn\u00e9ho pro zved\u00e1n\u00ed b\u0159emen, ta\u017een\u00ed nebo zaji\u0161t\u011bn\u00ed n\u00e1kladu. Tyto pr\u00e1ce vy\u017eaduj\u00ed vybaven\u00ed vybran\u00e9 a dimenzovan\u00e9 pro dan\u00fd \u00fakol.<\/p>\n

I p\u0159i b\u011b\u017en\u00e9m zav\u011b\u0161en\u00ed plat\u00ed pro konkr\u00e9tn\u00ed v\u00fdrobek za stanoven\u00fdch podm\u00ednek mezn\u00ed nosnost. V\u00fdrobcem stanoven\u00e1 nosnost nen\u00ed tot\u00e9\u017e co mezn\u00ed zat\u00ed\u017een\u00ed. Rovn\u00fd, nezkroucen\u00fd \u0159et\u011bz p\u0159i rovnom\u011brn\u00e9m tahu se li\u0161\u00ed od \u0159et\u011bzu, kter\u00fd je trhan\u00fd, zkroucen\u00fd, opot\u0159ebovan\u00fd, zkorodovan\u00fd nebo pozm\u011bn\u011bn\u00fd. Tyto zm\u011bny mohou sn\u00ed\u017eit jeho pou\u017eitelnou kapacitu.<\/p>\n

\u0158et\u011bz je pouze jednou \u010d\u00e1st\u00ed instalace. H\u00e1k, kter\u00fd nezapad\u00e1 do \u010dl\u00e1nku, slab\u00e1 kotva nebo nevhodn\u00e9 spojen\u00ed mohou selhat jako prvn\u00ed. Zkontrolujte \u0159et\u011bz, koncov\u00e9 prvky a mont\u00e1\u017en\u00ed body jako kompletn\u00ed sestavu. \u0158et\u011bz s ohnut\u00fdmi, otev\u0159en\u00fdmi, siln\u011b opot\u0159ebovan\u00fdmi nebo zkorodovan\u00fdmi \u010dl\u00e1nky vym\u011b\u0148te, m\u00edsto abyste p\u016fvodn\u00ed jmenovit\u00e9 hodnoty pova\u017eovali za st\u00e1le platn\u00e9.<\/p>\n

\"zvedac\u00ed<\/p>\n

Jak se li\u0161\u00ed od jin\u00fdch typ\u016f \u0159et\u011bz\u016f?<\/h2>\n

\u0158et\u011bz Jack se vyzna\u010duje mal\u00fdmi, tvarovan\u00fdmi dr\u00e1t\u011bn\u00fdmi \u010dl\u00e1nky a bezsvarovou konstrukc\u00ed. sva\u0159ovan\u00fd \u0159et\u011bz<\/strong>, Spoj v ka\u017ed\u00e9m \u010dl\u00e1nku je sva\u0159en\u00fd. Tento konstruk\u010dn\u00ed rozd\u00edl neznamen\u00e1, \u017ee ka\u017ed\u00fd sva\u0159ovan\u00fd \u0159et\u011bz je schv\u00e1len pro zved\u00e1n\u00ed; jeho t\u0159\u00edda a jmenovit\u00e9 hodnoty jsou st\u00e1le d\u016fle\u017eit\u00e9.<\/p>\n

\u0158et\u011bz \u0161erpy<\/a><\/strong> a \u0159et\u011bz s dvojitou smy\u010dkou<\/a><\/strong> existuj\u00ed i dal\u0161\u00ed pojmenovan\u00e9 typy bez\u0161vov\u00fdch \u0159et\u011bz\u016f. Dodavatel\u00e9 je uv\u00e1d\u011bj\u00ed odd\u011blen\u011b od zvedac\u00edch \u0159et\u011bz\u016f, proto\u017ee se li\u0161\u00ed proveden\u00ed \u010dl\u00e1nk\u016f a dostupn\u00e9 specifikace. Pokud pot\u0159ebujete n\u00e1hradu za st\u00e1vaj\u00edc\u00ed sestavu, porovnejte tvar \u010dl\u00e1nku, rozm\u011bry, konektory a v\u00fdkon produktu. Podobn\u011b vypadaj\u00edc\u00ed n\u00e1zvy \u0159et\u011bz\u016f nejsou spolehlivou n\u00e1hradou za tyto podrobnosti.<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n

Pokud nelze zvedac\u00ed \u0159et\u011bz pou\u017e\u00edt pro zved\u00e1n\u00ed nad hlavou, pro\u010d se pou\u017e\u00edv\u00e1 pro sv\u011btla?<\/h3>\n

Podep\u0159en\u00ed pevn\u00e9ho sv\u00edtidla a zved\u00e1n\u00ed b\u0159emene jsou r\u016fzn\u00e9 \u00fakoly. V\u00fdrobci uv\u00e1d\u011bj\u00ed sv\u00edtidla jako b\u011b\u017en\u00e9 pou\u017eit\u00ed, ale varuj\u00ed p\u0159ed zved\u00e1n\u00edm. To v\u0161ak neschvaluje ka\u017ed\u00e9 sv\u00edtidlo nebo jeho um\u00edst\u011bn\u00ed nad hlavou. Zkontrolujte spole\u010dn\u011b konkr\u00e9tn\u00ed \u0159et\u011bz, konektory, mont\u00e1\u017en\u00ed body a p\u0159\u00edslu\u0161n\u00e9 po\u017eadavky na instalaci sv\u00edtidla. Pokud by selh\u00e1n\u00ed mohlo po\u0161kodit osoby nebo majetek, nerozhodujte se pouze na z\u00e1klad\u011b typick\u00e9ho p\u0159\u00edkladu pou\u017eit\u00ed nebo nosnosti \u0159et\u011bzu.<\/p>\n

Mohu pou\u017e\u00edt zvedac\u00ed \u0159et\u011bz venku?<\/h3>\n

Z\u00e1le\u017e\u00ed na materi\u00e1lu \u0159et\u011bzu, jeho povrchov\u00e9 \u00faprav\u011b, expozici a pokynech v\u00fdrobce. Vlhkost a koroze mohou \u0159et\u011bz \u010dasem ovlivnit. Ujist\u011bte se, \u017ee vybran\u00fd produkt a ve\u0161ker\u00e9 jeho p\u0159\u00edslu\u0161enstv\u00ed jsou vhodn\u00e9 pro dan\u00e9 m\u00edsto, a pot\u00e9 je b\u011bhem pou\u017e\u00edv\u00e1n\u00ed zkontrolujte. Samotn\u00e1 \u010dern\u00e1 nebo leskl\u00e1 povrchov\u00e1 \u00faprava nen\u00ed d\u016fkazem vhodnosti pro venkovn\u00ed pou\u017eit\u00ed.<\/p>\n

Co kdy\u017e koncov\u00fd h\u00e1k projde \u010dl\u00e1nkem, ale je uvoln\u011bn\u00fd?<\/h3>\n

Usazen\u00ed je d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e jen to, zda h\u00e1k projde otvorem. Zkontrolujte, zda konektor z\u016fst\u00e1v\u00e1 zaji\u0161t\u011bn v o\u010dek\u00e1van\u00e9m sm\u011bru tahu a zda jeho jmenovit\u00e9 zat\u00ed\u017een\u00ed odpov\u00edd\u00e1 cel\u00e9 sestav\u011b. Nosnost \u0159et\u011bzu nem\u016f\u017ee kompenzovat nevhodn\u00fd h\u00e1k nebo kotvu.<\/p>\n

Je \u201c\u0159et\u011bzov\u00fd \u0159et\u00edzek\u201d pou\u017e\u00edvan\u00fd ve st\u0159edov\u011bk\u00e9 zbroji stejn\u00fd v\u00fdrobek?<\/h3>\n

Ne. Tento term\u00edn se objevuje tak\u00e9 v diskus\u00edch o ochran\u011b pa\u017e\u00ed v historick\u00fdch brn\u011bn\u00edch. Tento \u010dl\u00e1nek pou\u017e\u00edv\u00e1 modern\u00ed v\u00fdznam hardwaru: lehk\u00fd \u0159et\u011bz propojen\u00fdch dr\u00e1t\u011bn\u00fdch \u010dl\u00e1nk\u016f.<\/p>\n

Hlavn\u00ed bod<\/h2>\n

Zvedac\u00ed \u0159et\u011bz je kompaktn\u00ed, bez\u0161\u0148\u016frov\u00fd dr\u00e1t\u011bn\u00fd \u0159et\u011bz pou\u017e\u00edvan\u00fd hlavn\u011b pro lehk\u00e9 z\u00e1v\u011bsn\u00e9 a dekorativn\u00ed pr\u00e1ce. Jeho tvar \u010dl\u00e1nk\u016f v\u00e1m pom\u016f\u017ee jej rozpoznat, ale rozm\u011bry, materi\u00e1l a nosnost konkr\u00e9tn\u00edho \u0159et\u011bzu ur\u010duj\u00ed, zda je vhodn\u00fd pro va\u0161i aplikaci. U upev\u0148ovac\u00edch prvk\u016f, cedul\u00ed nebo displej\u016f zkontrolujte cel\u00e9 spojen\u00ed a dodr\u017eujte stanoven\u00e9 limity produktu. Pokud \u00fakol zahrnuje zved\u00e1n\u00ed, ta\u017een\u00ed nebo zaji\u0161t\u011bn\u00ed n\u00e1kladu, pou\u017eijte vybaven\u00ed ur\u010den\u00e9 pro dan\u00fd \u00fa\u010del.<\/p>","protected":false},"excerpt":{"rendered":"

You need a light chain to hang a sign, a light fixture, or a display. Several products are sold as \u201cjack chain,\u201d but their links, […]<\/p>\n","protected":false},"author":1,"featured_media":19390,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-19345","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"\nWhat Is Jack Chain? 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