FR2791657A1 - Equipment for loading burdens onto agricultural trailer has articulate legs supporting spindle carrying actuator controlled hook - Google Patents

Abstract

The equipment comprises two tube legs (1) articulated on spindles (2) fixed on the arms of the loader (3). These legs support a horizontal spindle (4), held in place by two tie rods (5), carrying a hook (6) directly moved by two usual elevator actuators, or if not driven by two returns (8) controlled by two actuators (9). A tubular support (13) placed between the ends of the arms by using the place of journals is provided with a front nose (14) which can engage under the load by means of two rear stops (15) holding it correctly inclined.

Description

Technical field: This clamp device is intended for loading on

  agricultural trailer of pre-strapped bundles or their

  deposit on the ground or at height after recovery on the ground or transport from temporary storage.

  It can be used to load small wood bundles such as firewood, stakes used in vines, loading logs and poles onto trailers. Previous technique: In the forest, the handling of reloading of logs on agricultural trailers is done, by hand,

  from the piles of logs, log after log, without these having been strapped before.

  Road semi-trailers can be reloaded in the forest and can transport 40 cubic meters using a symmetrical hydraulic opening clamp, mounted at the end of an articulated mast carried by the truck and only on paths that are accessible to trucks. These devices, outside the financial reach of many forest entrepreneurs, are driven with the help of a powerful hydraulic power plant carried by

the semi - trailer.

  Finally, elsewhere than in the forest, in warehouses, non-encircled wood and encircled fagots are usually handled by a symmetrical opening pliers hanged at the end of a mast carried by a

specialized vehicle.

  Many loggers do not have relatively expensive hanging clamps.

  The use of a conventional fork, also called a loader, not fitted with the new device, located at the front

  of a tractor does not allow until now the loading on trailer of bales of small wood.

  Disclosure of the invention: The new clamp device is designed to equip a front loader of a tractor and requiring no

  other cylinder than those which are usually already in place.

  This classic front loader that all farmers have and many entrepreneurs

  foresters can get it for a lower price than a mast machine and hanging hydraulic clamp.

  The chargers already delivered can generally be modified to receive the new device.

  A charger leaving the factory can be equipped to receive the mechanical elements of this

  new device. This will constitute an additional option compatible with the conventional charger.

  Option that can be set up by the user without any tool other than a hammer.

  With a loader thus equipped, loading on agricultural trailer of pre-strapped bundles, otherwise their deposit on the ground or at a height of about two to three meters, after their recovery on the ground and their transport to

  from an intermediate storage nearby, are easy.

  The bundles are approached from above, from the front and from the rear, without needing to be able to pass

below.

  This clamp device consists of two uprights of tubes (1) each articulated on axis coupons (2) each fixed on a base (21) of one of the loader arms (3) and supporting a horizontal axis (4) held in place by two tubular tie rods (5), the ends of which are retained with studs fitted with beta pins and fixed to the bases (22+ 23); The horizontal shaft (4) carrying a hook (6) moved directly by the two usual cylinders (10) of the elevator otherwise driven by two tie rods (7) actuated by the

  two references (8) already in place but modified and controlled by the two usual cylinders (9).

  A tubular support (13), the bearing pins of which are housed in the usual ends of the fork arms (loader), being held there by the usual pins, is provided with a front spout (14) welded to the tubular support (13 ) at two points spaced approximately 350 mm and projecting over approximately 250 mm kept inclined downwards by means of two small arms (15) directed backwards under the loader arms and resting on the underside of the loader arms so that he engages under the burden when the

tractor advances.

  Each of the two tubular uprights (1) possibly not rectilinear but overall curved can be reinforced by T-iron and carries at one of its ends a welded socket (11) and at the other an open slide (12) receiving one of the two ends of the horizontal axis (4) and can be closed by

  a pin itself receiving a beta type pin.

  The curved hook (6) with a radius of curvature of about 500 mm is straight at its end, consists of two tubes (20) connecting on the opposite side to the joint by two elbows (17) and welded to the support tubular (4) which carries two welded arms (16) controlled by the usual jacks (10) or

  controlled by the tie rods (7) moved by the usual cylinders (9).

  Two reinforcements (19) join far from the horizontal axis (4) the tubes (20) and the arms (16) of this hook (6) which, when it is lifted, allows passing over the bundle to be loaded, then by falling closer to what

  bundle of loader arms and finally tighten it to hold it in place.

  The two tubes (20) of the hook (6) are arranged relative to each other so that their fasteners (18) on the tubular support (4) are as far apart as possible very close to the ends of the horizontal axis (4) while the end (17) of the hook has an external width less than the length of the

  parts handled by the device in such a way that the strapping links do not suffer from tightening.

  After the manufacture or adaptation by welding on each face of three bases (21 + 22 + 23) and modification of the references (8) as drawn, the assembly can be assembled and disassembled by the user without

  other tool than a hammer to engage the "Beta" pins which immobilize the parts in good place.

  Upcoming industrial achievement: A device was used to load bundles of a cubic meter of firewood, to the satisfaction of

  handler responsible for deliveries.

  At a much lower price than a specialized machine equipped with a mast, telescopic or not, and a hydraulic hanging clamp, it can and must interest loggers, sawmills, farmers, who have to deliver steres firewood or stakes with their agricultural trailer. Especially since

  agricultural trailer can travel on roads inaccessible to semi - trailer road trucks.

  This is all the more so since they have carried out the bundling of their steres with the "autonomous bundling apparatus" for which a patent application has just been filed under the number 98-10095 and they have removed them from forest to put them by the roadside with "the skidding and transporting device of

  pre-strapped bundles "for which a patent application has just been filed under the number 98-10845.

Claims (4)

  1) Clamp device intended for loading or depositing on the ground or at the height of burdens after recovery on the ground and transport, characterized in that it consists of two uprights of tubes (1) possibly not rectilinear but generally curved articulated on axis coupons (2) fixed on the arms (3) of a loader and supporting a horizontal axis (4) held in place by two tie rods (5) and carrying a hook (6) moved directly by the two usual cylinders ( 10) of the loader otherwise moved by two tie rods (7) actuated by the two references (8) sometimes used and controlled by the two usual cylinders (9) and not requiring   no other jack than those usually found on the fork or loader on which it is mounted.   2) device according to claim 1 characterized in that each of the two tubular uprights (1) can be reinforced by T-iron and carries at one of its ends a welded socket (11) and at the other an open slide (12 ) receiving one of the two ends of the horizontal axis (4) and being able to be closed by   a pin itself receiving a beta type pin.   3) device according to claim 1 characterized in that each of the uprights (1) supporting the horizontal axis (4) is kept attached to the loader arm by a tubular tie (5) whose ends are   retained by pins fixed on bases (22 + 23) and fitted with beta pins.   4) device according to claim 1 characterized in that a tubular support (13) whose bearing pins are housed in the usual ends of the loader arms while being held there by the usual pins is provided with a front spout (14) welded at two points spaced about 350 mm and projecting about 250 mm and kept inclined downwards by two small arms (15) directed towards   the back and resting on the underside of the loader arms.   ) apparatus according to claim 1 characterized in that the hook (6) bent with a radius of curvature of about 500 mm is straight at its end and consists of two welded tubes (20) on the horizontal axis (4) bearing two welded arms (16) controlled by the two usual cylinders (10) or by the two tie rods (7) moved by the two usual cylinders (9) and connected on the opposite side to the horizontal axis by two elbows (17).   (6) apparatus according to claim 5 characterized in that the two tubes (20) of the hook (6) are arranged relative to each other so that their fasteners (18) are placed very close to the ends of the horizontal axis (4) while the end of the hook on the side of the elbows (17) has an outer width more   reduced less than the length of the circled parts handled by the device.   (7) device according to claim 5 characterized in that two reinforcements (19) join the bent tubes   (20) of the hook and the arms (16) of this hook (6) far from the horizontal axis (4).