DESC:FIELD OF INVENTION
The present invention relates to a mobile crane. More particularly, the present invention relates to an articulated pick and carry crane.

BACKGROUND
[001] A mobile crane, as the name suggests is an all-wheel drive crane that can travel on both highways and gravel roads to get the crane into position for the lift. With the new engineering advancements in crane set up, these cranes are now ideal for lifting and moving loads on remote job site locations.
[002] Mobile cranes are primarily designed to be used on firm, flat, level ground. For each crane, rated capacity manuals are produced that provide load chart tables defining the capacity of the crane when in a particular configuration.
[003] A pick and carry crane is similar to a mobile crane that is able to move with a load suspended to a boom. Pick and carry cranes are also able to drive on public roads at highway speeds. The design of pick and carry cranes varies depending on the application of such crane.
[004] An articulated pick and carry crane is a crane whose boom consists of a pin connected structural members to extend or retract loads using power from hydraulic cylinders. This allows an operator to gain access to work areas over obstacles and barriers. Therefore, such cranes are perfect for tight access and hard-to-reach areas.
[005] A Mobile Elevating Work Platforms (MEWP) are also used when a construction worker or operator has to perform a work on an elevated position or a height.
[006] AWP and MEWP thus, provide temporary access for people or operators to reach inaccessible areas, usually at a certain height. However, the main drawback of such AWP or MEWP is that it lifts and carries people and/or small equipment along with the operator, but not heavy load.

OBJECTS OF THE INVENTION
[007] Objects of the present invention involve overcoming the above-mentioned problem associated with the existing AWP/MEWP systems and cranes.
[008] Primary object of the present invention is to provide an articulated pick and carry crane that lifts and carries heavy load along with operators to desired heights, while ensuring highest standard of safety.
[009] Another object of the present invention is to provide an articulated pick and carry crane having an improved operational workability while lifting people and load at desired height.
[0010] Another object of the present invention is to provide an articulated pick and carry crane that carries people and heavy load in any direction or location at any height.
[0011] Yet another object of the present invention is to provide an articulated pick and carry crane that is simple in design and cost effective in construction.
[0012] As per another object, the articulated pick and carry crane of the present invention provides greater versatility to send people and load up over obstacles to inaccessible working areas.
[0013] Other objects and advantages of the present invention will become apparent from the following description, wherein, the aspects of the present invention are disclosed.

SUMMARY OF THE INVENTION
[0014] The present invention discloses an articulated pick and carry crane comprising an articulated and tiltable jib, rotatable basket, and hooks to lift and carry people and heavy weight or load at desired height and location. The articulated pick and carry crane as per the present invention also comprises control valves, hydraulic cylinders, compensation cylinders, jib cylinders, slew drives, and jib so as to achieve the objects of present invention.

BRIEF DESCRIPTION OF DRAWINGS
[0015] The present invention will be better understood after reading the following detailed description of presently preferred aspects thereof with reference to the appended drawing, in which:
[0016] Fig. 1(a) illustrates a perspective view of the articulated pick and carry crane as per the present invention; and
[0017] Fig. 1(b) illustrates another perspective view of the articulated pick and carry crane as per the present invention

DETAILED DESCRIPTION OF EMBODIMENTS
[0018] The following description describes various features and functions of the disclosed system and method with reference to the accompanying figure. In the figure, similar symbols identify similar components, unless context dictates otherwise. The illustrative aspects described herein are not meant to be limiting. It may be readily understood that certain aspects of the disclosed system and method can be arranged and combined in a wide variety of different configurations, all of which are contemplated herein.
[0019] These and other features, including the advantages of the present invention may be incorporated into certain embodiments of the invention and will become more fully apparent from the following description, or may be learned by the practice of the invention as set forth hereinafter.
[0020] Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
[0021] It is to be understood that the singular forms “a”, “an”, and “the” include plural reference, unless the context clearly dictates otherwise.
[0022] It should be emphasized that the term “comprises/comprising” when used in this specification is taken to specify the presence of stated features, integers, steps or components, but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.
[0023] Figures 1(a) and 1(b) illustrate a schematic representation of the articulated pick and carry crane as per the present invention comprising a front body and a rear body.
[0024] As per the Figures, the front body and rear body of the crane are coupled to each other through center pivot pins. The crane in the present invention is steered by articulating the front body and rear body through plurality of hydraulic steering cylinders.
[0025] The rear body of crane comprises, but not limited to, an engine, plurality of transmissions or gearboxes, plurality of auxiliary gearboxes, a rear axle with tires, one or more fuel tanks or hydraulic tanks, plurality of rear suspensions, engine coverings, one or more counter weight and plurality of outriggers.
[0026] The engines with a gearbox mounted on the rear body powers the crane for movement on and off road, and for manoeuvring heavy load and operator at desired heights. The power from the engine to drive axle fitted on the rear body for movement of crane is through the auxiliary gearbox and propeller shafts.
[0027] The counter weight mounted on the rear body of crane provides stability to the crane when heavy load and/or people are lifted and manoeuvred towards highest heights through hooks, snatch blocks and man baskets.
[0028] The front body of the crane comprises, but is not limited to, a front axle, tires, driver cabin, propeller shafts, plurality of hydraulic jack cylinders, a boom.
[0029] The driver cabin or an operator cabin on the front body of crane is provided with a seat for the operator and controls such as levers or handles, steering wheel, etc. for manoeuvring the crane.
[0030] The plurality of hydraulic jack cylinders on front part of crane plays a crucial role in the present invention in lifting the maximum capacity loads and efficient use during various other functions of crane by exhibiting the characteristics of a solid platform for the crane’s safe operation. On extension and contraction of the hydraulic jack cylinders, movable section of crane moves up and down.
[0031] The boom is fixed on the upper frame of front body of the crane through a pivot pin joint. The telescopic boom of crane includes plurality of boom sections which can be extended or retracted through a boom extension cylinder so as to exhibit the telescopic characteristic of boom.
[0032] Other than the boom sections, the boom is also mounted with, but not limited to, a plurality of luff cylinders, winch, snatch block and plurality of hooks. The luff cylinders are connected to the boom so as to manoeuvre the boom up and down.
[0033] Two or more hydraulic cylinders are connected between the plurality of boom sections which extends and retracts to allow the telescopic boom to move up and down.
[0034] The boom of crane is also provided with plurality of hook points and hook blocks to hang heavy weight and/or light weight load.
[0035] The winch mounted on top of the boom includes a drum on which rope is wound, and a hydraulic winch motor to rotate the drum in forward and reverse direction.
[0036] The winch motor is driven through the power of hydraulic pump. The winch motor rotates the winch drum so that the snatch block that is coupled with front end of the rope on wire drum moves up and down.
[0037] The boom assembly in the front side of crane also comprises an assembly including but not limited to a plurality of hydraulic compensation cylinders (7, 8), a jib (4), a man basket (5), a drag chain (2), one or more slew drives (3), a pipe set, a basket mounting fabrication.
[0038] The man basket mounted on the jib of boom assembly carries the operator, technician, or other people to desired height. The plurality of compensation cylinders (7) function to make sure that the man basket is balanced and is always maintained in a horizontal direction.
[0039] The jib in the boom assembly is designed to be tiltable in the present invention, so that the man basket is lifted or lowered to desired height at desired angles.
[0040] The jib in the present invention is designed to be operable in an angular range of 170 degrees through a set of control valves. As per a specific embodiment of the present invention, the angular range is between +85 degrees and -85 degrees.
[0041] The man basket in the present invention is also designed to be operable in an angular range of 170 degrees through another spool of control valves. As per a specific embodiment of the present invention, the angular range is between +85 degrees and -85 degrees.
[0042] The man basket (5) and the jib (4) mounted on the boom assembly are designed to be rotatable by the operation of plurality of slew drives (3) in the front side of crane.
[0043] The man basket (5) along with the hook blocks or snatch block mounted on the boom assembly in front side of the crane enables operators and other people to be lifted and lowered at desired heights and locations, along with heavy load.
[0044] The articulated pick and carry crane of present invention is designed to be stable enough to provide support to lift people and heavy load simultaneously in any direction on the desired location without causing vehicle instability.
[0045] While the present invention has been described with reference to one or more preferred aspects, which aspects have been set forth in considerable detail for the purposes of making a complete disclosure of the invention, such aspects are merely exemplary and are not intended to be limiting or represent an exhaustive enumeration of all aspects of the invention. The scope of the invention, therefore, shall be defined solely by the following claims. Further, it will be apparent to those of skill in the art that numerous changes may be made in such details without departing from the principles of the invention.

We claim:
1. An articulated pick and carry crane comprising a front body coupled to a rear body through centre pivot pins, steered through a plurality of hydraulic steering cylinders, the front body comprising a boom assembly, wherein the boom assembly is mounted with a plurality of hooks, a man basket (5) operably connected to a first kind of slew drive (3), and a jib (4) operably connected to a second kind of slew drives (3).
2. The articulated pick and carry crane as claimed in claim 1, wherein the first kind of slew drive (3) rotates the man basket (5).
3. The articulated pick and carry crane as claimed in claim 1, wherein the second kind of slew drive (3) rotates the jib (4).
4. The articulated pick and carry crane as claimed in claim 3, wherein a jib cylinder (6) actuates the jib (4).

5. The articulated pick and carry crane as claimed in claim 4, wherein the jib cylinder (6) actuates the jib (4) in an upward and downward movement without rotating the jib (4).

6. The articulated pick and carry crane as claimed in claim 1, wherein the front body comprises a cabin for an operator to manoeuvre the crane.

7. The articulated pick and carry crane as claimed in claim 1, wherein the rear body comprises an engine to power the crane movements and its operations.

8. The articulated pick and carry crane as claimed in claim 1, wherein the rear body comprises a counter weight to stabilize the crane.

9. The articulated pick and carry crane as claimed in claim 1, wherein the front body comprises plurality of outriggers for efficient lifting and lowering of load and people.