FR2938247A1 - Dual-jack device for lifting body of populated hive, has two crank jacks integrated by two T-shape square tubes, where T-shape square tubes articulated on sliding round tube to maintain crank jacks in vertical position - Google Patents

Abstract

The device has two crank jacks (1) i.e. car jacks, integrated by two T-shape square tubes (2). The T-shape square tubes are articulated on a sliding round tube (3) to maintain the crank jacks in a vertical position and to adjust a space formed between the crank jacks. A moving and sliding part (7) of the crank jacks is equipped with an adjustable removable hook (8). The round tube is slid in horizontal bars (6) of the square tubes.

Description

The present invention relates to a device for lifting the body of a populated hive without touching the lower part or tray. The device combines two jacks (car type) crank and vertical worm. The set can be called bi-jack. The two jacks (1) are made integral by means of sliding tubes allowing one hand maintains them in a vertical position and secondly the adjustment of the spacing to adjust the device to different widths of hives. Each jack previously removed from its base is secured to a welded tee square tube (2). This solidarity can be achieved by flanges (5) or by welding depending on the nature of the materials. The lower part of the jack (4) is reinforced inside by a piece of tube of adequate diameter to avoid crushing when tightening the flanges. The two Tees (2) are partially secured by means of a circular tube (3) sliding in one or both horizontal bars (6) Tés. This allows the adjustment of the spacing of the two jacks and an adaptation to light unevenness of the hive support.

The movable and sliding part of the jacks (7) is equipped with a kind of adjustable removable hook (8) to be placed under the handles of the hive (or in the notches). The device is positioned on both sides of the hive on the same support as this one. The lifting is done by driving the cranks (9) of the jacks as in the case of a motor vehicle with this ready that it is prudent and necessary to synchronize the movements of the two jacks in order to keep the hive level and avoid any imbalance . The prototype made of stainless steel, weighs around 6kg and can lift a load of about 150kg. Use: The device allows, without effort and without disturbing the colony, ~ ~ to remove, clean or change the tray of a crowded hive in full activity. -3 to interpose or easily remove another element such as a lower rise in the case of the conduct of divisible hives. -4 to visit the lower part of the shelves and frames. -3 to interpose a queen gate or a bee-hunt. The lifting height being materially limited to 45 cm the device can be raised by shims.

Claims (4)

Claims1) Bi-jack lifting device for a beehive, characterized in that it combines two jacks (car jack type) with crank and vertical worm (1) equipped with a removable hook (8) and made partially integral by two square tube Tees (2) articulated on a sliding round tube (3). 2) Device according to claim 1 characterized in that each jack (1) is integral with a tee tube square (2). 3) Device according to claims 1 and 2 characterized in that the two square tube tees (2) are articulated on a round tube (3) thus allowing the maintenance in the vertical position of the two jacks, the adjustment of their spacing and their adaptation slight vertical differences in the support. 4) Device according to claim 1 characterized in that the movable and sliding portion of the jacks (7) is equipped with an adjustable removable hook (8).