| 摘要 |
<p>A handle 40 comprises a lever 42 used with a hatch 22 of a device (10, fig 1) selected from an incinerator, furnace, brazier or refrigerator. The lever is moved between a first retracted (fig 2) and a second extended position (fig 3) whereby a portion of the lever projects beyond a periphery of the device. In the extended position the lever pivots freely. First and second spaced apart pins 46 slide within slotted apertures 48 of L-shaped braces 50 welded to the hatch. When the lever is fully extended a through-pin 52 on the lever that does not engage the slotted apertures strikes a pivotable lock actuating lever 56 and engages a catch 58 rigidly fixed to the hatch. When the lever is fully extended, a hooked portion 62 of the lock actuating lever is moved clear of the body 12 of the incinerator permitting the hatch to be opened. The lock actuating lever may be spring biased closed (fig 2). An electrical interlock may switch a burner (20) on or off depending on the lever position. The hatch may have a lift assist device (28) such as a counterbalance, gas strut, pulley system, spring or over-centred cam arrangement.</p> |
