Kubaka isuka y’igiti ya ard — Isuka icukura gake

Ard ifite ibice bitatu by’ingenzi: umuhini mukuru (uhuza n’umugogo n’itungo rikurura), stilt cyangwa umuhini wo gufata (umuhinzi afata kugira ngo ayobore isuka), n’umunwa cyangwa sole (igice gisongoye cyinjira mu butaka). Ard yoroshye cyane ikorwa mu ishami rimwe ryigabanyije mo kabiri mu buryo kamere aho ihuriro rihuza umuhini mukuru n’umunwa. Hitamo ishami ry’igiti gikomeye rifite ihuriro kamere rimeze nka Y ku nguni ya dogere 30-40 hafi. Ukuboko kurekire kuba umuhini mukuru (metero 2-3), naho ukuboko kugufi kukaba umunwa (cm 40-60). Bumba amaboko yombi ukoresheje intorezo y’ibuye.

Umunwa ni impera ikora icukura mu butaka. Uwubumbe ugire isonga risongoye cyangwa rimeze nk’isuka ntoya ryinjira mu butaka bukomeye. Kugira ngo uramba, komeza isonga ukoresheje umuriro uriturika buhoro hejuru y’amakara — ibi bikuramo ubuhehere kandi bigahuza polymer z’igiti, bikongera cyane ubukomere bw’inyuma. Cyangwa ushyire ku munwa isonga ry’ibuye cyangwa (mu bihe byakurikiyeho) inkweto y’umuringa cyangwa y’icyuma. Umunwa ugomba guhengama werekeza hasi ku nguni ya dogere 15-25 hafi uvuye ku murongo utambitse iyo isuka iri mu mwanya wo gukora — iyo ihengamye cyane iracukura igahagarara; iyo idahengamye bihagije igendera hejuru itacukura.

Stilt (umuhini wo gufata) izamuka iva ku ihuriro ry’umuhini mukuru n’umunwa, igatuma umuhinzi akanda ku munwa kandi akayobora icyerekezo cyawo. Niba ishami ryawe ryigabanyije rifite amaboko abiri gusa, ongeraho stilt itandukanye utobora cyangwa utwika umwobo unyuze mu muhini mukuru hafi y’ihuriro maze winjizemo umuhini ugororotse, uwuhambire neza ukoresheje uruhu rubisi cyangwa imitsi. Stilt igomba kuzamuka ku burebure bworoshye bwo gukora (hafi hagati y’ikibuno n’igituza by’umuhinzi). Ard zimwe zifite stilt ebyiri kugira ngo zigenzurwe neza. Stilt igomba gukomera — umuhinzi ayikandaho imbaraga nyinshi zerekeza hasi kugira ngo umunwa ugume mu butaka.

Impera y’imbere y’umuhini mukuru ihuza n’itungo rikurura (inka z’amapfizi ni zo zari amatungo akurura by’ingenzi mu Burasirazuba bwo Hafi bwa kera). Tobora umwobo unyuze ku isonga ry’umuhini mukuru maze winjizemo urubambo cyangwa pine ihuza n’umugogo ukoresheje umugozi cyangwa umukandara w’uruhu. Ihuriro rigomba kwemera kugenda gake ku mpande kugira ngo isuka ishobore kumenyera ubutaka butaringaniye itavunika. Uburebure bw’umuhini mukuru (metero 2-3) butuma umuhinzi aguma ku ntera itekanye inyuma y’amatungo. Umugogo uri ku majosi y’amapfizi abiri, ukagabanya imbaraga zo gukurura. Inguni y’ihuriro hagati y’umuhini mukuru n’ubutaka igomba gutuma umunwa ugumana inguni yawo yo gucukura mu gihe cy’urugendo ruhamye rujya imbere.

Kugira ngo uhinge, amatungo akurura akurura ard imbere mu gihe umuhinzi agenda inyuma, akanda kuri stilt kugira ngo umunwa ugumane ubujyakuzimu bwo kwinjira (akenshi cm 10-15 kuri ard). Ard icukura umuferege muto umeze nka V itagaruye ubutaka. Hinga umurima incuro ebyiri zihuriye ku nguni igororotse — ibi bimena ubutaka mo uduce duto tubereye kubibamo imbuto. Ubu buryo bwo guhinga bwambukiranya bujyanye by’umwihariko n’ubutaka bworoshye kandi bwumye bwo mu karere ka Mediterane no mu Burasirazuba bwo Hafi. Inyandiko z’ubutegetsi za Sumeri zo mu kinyagihumbi cya gatatu mbere ya Yesu zisobanura amatsinda y’amapfizi ahinga ubuso bw’imirima bwagenwe hamwe n’ingano zihariye z’imbuto zigomba kubibwa, bigaragaza imicungire y’ubuhinzi ihanitse. Ard yakomeje kuba ubwoko bw’isuka bwiganje mu karere ka Mediterane kugeza mu gihe cy’Abaroma.