| 摘要 |
<p>The device (10) enables a cold room sliding door to be released from its closed position, and comprises: a bush (12) incorporated into the thickness of the door panel (56) and fixed to the door panel (56) such that its axis is perpendicular to this latter (56); a central shaft (20) coaxially inserted into the bush (12) to be able both to rotate about the axis of this latter (12) and to move along said axis; means (26, 24; 27, 24) for guiding the movement and rotation of the central shaft (20), which enable it to rotate in the direction compatible with the door opening direction; elastic return means (28) to bring the central shaft (20) into a position withdrawn outwards from the door panel (56) when left free to move coaxially; external means (44) for rotating the central shaft (20); internal means (46) for rotating the central shaft (20) and provided with a striker (54) adapted to come into contact with a fixed point. The bush (12) has a length less than the thickness of all or at least part of the door panels (56) of such doors, a ring cap (14) being provided coupleable coaxially to the bush (12) such that the bush (12)-ring cap (14) assembly has a length adapted to the thickness of the specific door panel (56).
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