| 摘要 |
A Compressed Gas Storage Cylinder Vertical Lifting Device consisting of two substantially symmetrical halves 12 hinged in the centre. The device has one central handle 16 on each hinged half. A rubber type insert 13 is adhered to the device's circular inner surface on both halves. The rubber type insert, which is retained by means of a shoulder (11, Fig 5) on the underside of the frame, forms the sole contact between the device frame and cylinder. Each half of the device frame is folded by 7 degrees at points 19, 20 and 21. These folds produce a precise contact between the device and cylinder allowing optimum grip. In the open position the device has clearance to be lowered over the cylinder to the required handling height (02, Fig 2). When the handles are lifted the device closes and grips the cylinder positively (03, Fig 3). The hinge has a square lug (06, Fig 4) to limit angular movement when the halves are closed in downwards direction, in order to avoid clamping action whilst lowered as shown in Fig 2.
|
