Xa kusiziwa ekuzikhuseleni kwimozulu, zimbalwa izinto ezintsha eziye zahlala ixesha elide njengesambrela. Kangangeenkulungwane, esi sixhobo sithobekileyo siye sasikhusela emvuleni, ekhephini, naselangeni, sisinika indawo yokuzikhusela enokuthwalwa yindalo. Kodwa ngasemva kokulula kwesambrela kukho ihlabathi elinomdla lobunjineli noyilo, ingakumbi xa kufikwa kwisambrela. Kweli nqaku, siza kuhlola ubugcisa bokuyila iifreyimu zesambrela eziguquguqukayo, iteknoloji engasemva kwazo, kunye nempembelelo ezinayo kubomi bethu bemihla ngemihla.
Uphuhliso lwee-Umbrella Frames
Ii-ambrella zinembali ende nenembali, eqala kwiminyaka engamawakawaka ukuya kwimpucuko yamandulo efana neMesopotamia, iYiputa, neTshayina. Nangona kunjalo, akuzange kube yinkulungwane ye-18 apho i-ambrela yanamhlanje egoqekayo, njengoko siyayazi namhlanje, yaqala ukubonakala. Uphuhliso lweefreyimu ze-ambrela luye lwahamba indlela ende ukusukela ngoko, lutshintsha ukusuka kwizakhiwo eziqinileyo nezinzima ukuya kuyilo olukhaphukhaphu noluguquguqukayo.
Injongo ephambili yalo naliphi na isakhelo sesambulela kukuxhasa ikhenophi nokusigcina siqinile, sinike isikhuselo esiqinileyo kwimozulu. Nangona kunjalo, ukuguquguquka kuye kwaba yinto ebalulekileyo kuyilo lwesambulela, ingakumbi njengoko sijongene neemeko zemozulu ezingaqinisekanga kunye nemimoya enamandla. Iifreyimu zesambulela zemveli ezenziwe ngomthi okanye ngentsimbi zazisoloko zingenawo amandla okugoba nokuguqa, nto leyo eyenza ukuba zibe sesichengeni sokonakala kwimimoya enamandla okanye imvula enkulu.
Izinto Ezibalulekileyo
Enye yezinto ezibalulekileyo ekuyileni iifreyimu zesambrela eziguquguqukayo kukukhetha izinto ezisetyenzisiweyo. Iisambrela zanamhlanje zihlala zisebenzisa izinto ezifana ne-fiberglass, i-aluminium, kunye ne-carbon fiber kwiifreyimu zazo. Ezi zinto zibonelela ngomxube ofanelekileyo wamandla kunye nokuguquguquka.
Umzekelo, i-fiberglass lukhetho oludumileyo ngenxa yokukhanya kwayo okuncinci kunye nokuguquguquka okumangalisayo. Xa iphantsi koxinzelelo, i-fiberglass inokugoba kwaye ifunxe amandla ngaphandle kokuphuka, nto leyo eyenza ukuba ibe lukhetho oluhle kakhulu kwiimbambo zesambrela. I-aluminium kunye ne-carbon fiber nazo zixatyiswa ngenxa yeempawu zazo ezilula kunye nokukwazi kwazo ukumelana nokugoba ngaphandle kokuguquka okungapheliyo.
Ixesha lokuthumela: Septemba-18-2023