Cob (kayan aiki)

Cob, cobb, ko clom (a Wales) kayan gini ne na halitta wanda aka yi daga ƙasa, ruwa, kayan kwayoyin halitta (yawanci straw), kuma wani lokacin lime. Abubuwan da ke cikin ƙasa sun bambanta, kuma idan ba su ƙunshi cakuda daidai ba, ana iya canza shi da yashi ko yumɓu. Cob yana da tsayayya da wuta, tabbacin tsutsa, mai tsayayya ga aikin girgizar ƙasa, kuma yana amfani da kayan aiki masu tsada, kodayake yana da aiki sosai. Ana iya amfani da shi don ƙirƙirar siffofin fasaha da zane-zane, kuma an farfado da amfani da shi a cikin 'yan shekarun nan ta hanyar gine-gine na halitta da ƙungiyoyin dorewa.

A cikin takardun gine-gine na fasaha da injiniya, kamar Uniform Building Code na yammacin Amurka, ana iya kiran cob a matsayin "ma'aunin yumbu mara ƙonewa," lokacin da aka yi amfani da shi a cikin tsarin tsari. Hakanan ana iya kiransa "ƙaddamarwa" a cikin abubuwan da ba na tsari ba, kamar "ƙaddar da yashi," ko kuma "ƙaddarar kwayoyin halitta," kamar inda cob shine mai cikawa tsakanin gidan waya da ginin katako.

 Tarihi da amfani 
'cob' kalma ce ta Turanci da aka tabbatar a kusa da shekara ta 1600  don kayan gini na dā wanda aka yi amfani da shi don gini tun zamanin da. Amfani da wannan kayan a Iran ya wuce shekaru 4000. Maganar cob da cobbing ba a bayyane yake ba, amma a hanyoyi da yawa yana nufin doke ko yajin aiki,  wanda shine yadda ake amfani da kayan cob a bango.

Ana amfani da irin waɗannan kayan da hanyoyin gine-ginen ƙasa a duniya, kamar adobe,  'Yumbu mai laushi',  yashi mai laushi. Wright, Joseph. "COB(B, sb3. 1.", The English Dialect Dictionary, Being the Complete Vocabulary of All Dialect Words Still in Use, or Known to Have Been in Use during the Last Two Hundred Years. London: H. Frowde;, 1898. 676-677. Print. Wychert,  yumbu daubins,  Swidish (Asante Twi), [4] torchis (Faransanci),  bauge (Faransci),  bousille (Faransaniya laka tare da moss), [3] yumbu-Pahsa (Tsakiyar Asiya), da cat da yumɓu. [4]

Ana iya samun tsarin Cob a cikin yanayi daban-daban a duk faɗin duniya. Misalan Turai sun hada da:

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