| 摘要 |
FIELD: office equipment, in particular, casings for storage and transportation of rolled objects, preferably draft sheets. SUBSTANCE: casing has inner enclosure telescopically insertable into outer enclosure so that inner enclosure may be secured relative to outer enclosure in several fixed positions by means of position retainers, which are made by shaped contacting parts of inner and outer enclosures positioned at lock points. Position retainers are formed as two projections radially extending one into another at one side and closing on themselves at other side on one enclosure and in the from of projections on other enclosure. Projections are oriented perpendicular to generatrices of cylindrical surfaces of enclosures. EFFECT: wider operational capabilities, simplified construction and increased convenience. 10 dwg
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