DESC:One embodiment of the present invention comprising of Bi-directional order picking trolley 100 as shown in the Figure1. The Bi-directional order picking trolley 100 is comprised of a tubular chassis 1, with first and second tote frame assembly 2A,2B secured to the said tubular chassis 1. The first handle bar assembly 3A and second handle bar assembly 3B are secured in position at the front and rear portion of the tubular chassis 1. Wheel & electric motor assembly 4A is connected to the handle bar assembly 3A through the fork assembly 200A. Similarly, Wheel and electric motor Assembly 4B is connected to the handle bar assembly 3B through the fork assembly 200B. The wheel assembly 4A along with brake disk assembly 5A assembled to the fork 10A forms the fork assembly 200A, similarly the wheel assembly 4B, brake disk assembly 5B and the fork 10B forms the fork assembly 200B. The first bare code scanner 7A, emergency switch 9A are mounted on to handle bar assembly 201A and the second barcode scanner 7, emergency switch 9B and the picker display unit 12 are mounted on to handle bar assembly 201B. The link rod 11 connects the front and rear fork assemblies 200A, 200B forming the steering mechanism.
In another embodiment of the present invention as show in the figure 2, the operator 203 is standing on operator platform 204, in the direction of trolley movement with multiple totes 202 mounted on to the Bi-directional Order picking trolley 100.
Further to illustrate the embodiment of the present invention Bi-direction the figure 3 shows the different operator 203 position while moving the trolley in forward and backward directions
The figure 4 illustrates an embodiment of steering mechanism where in the link rod 11 connects front fork assembly 200A to the back-fork assembly 200B to form a multi bar steering link mechanism.
In another embodiment as illustrated in the figure 5 the wheel assemblies 4A,4B along with caster wheels 8A, 8B forms a rhombus geometric configuration for better stability
In some embodiment as illustrated in the figure 6 the tote frame 2A, 2B are detachable from the tubular frame 1. In another embodiment as illustrated in the figure 7 the tote frames 2A ,2B are foldable.
The figure 8 illustrates an embodiment of wheel height adjustment mechanism comprising of a stopper pint X a cam Y connected to wheel assembly 3A, 3B which enable height adjustment for better stability of the trolley

In view of the wide verity of embodiments to which the principles of the invention can be applied, it should be appreciated that the detailed embodiments are illustrative only and should not be taken as limiting the scope of the invention and should be determined only by a fair reading of the claims
,CLAIMS:We Claim,
1. A Bi directional Order picking Electric trolley comprising of ;
a tubular main chassis frame with a front, middle and Rear portion comprising of
I. a first handle bar assembly connected to the front wheel fork assembly through the main chassis frame
II. a front wheel cum drive motor assembly secured to said frame and the said handle bar through front wheel fork assembly
III. a first tote carrying frame secured to the front portion of the said main chassis
IV. a first control box comprising of master control board, motor drive board, current control board and a Battery compartment
V. a second handle bar assembly connected to the rear wheel fork assembly through the main chassis frame
VI. a rear wheel cum drive motor assembly secured to said frame and the said handle bar through rear wheel fork assembly
VII. a second tote carrying frame secured to the rear portion of the said main chassis
VIII. a second control box comprising of motor drive board, current control board and a Battery compartment
IX. a multi bar link mechanism connects the first and second handle bar through the front and rear wheel assembly
X. A rider platform at the middle portion of the chassis
XI. A pair of self-aligning caster wheels at the middle portion of the chassis forming a rhombus configuration

2. A Bi directional Order picking Electric trolley of claim 1, wherein the said vehicle is electrically powered and said vehicle has electric motors on the front and the rear wheels to enable bidirectional movement of the trolley
3. A Bi directional Order picking Electric trolley of claim 1 where in the said first handle bar assembly comprises of throttle controls, brake lever controls, picking display unit, emergency switch, direction control switch, safety beacon and Barcode scanner system secured to the handle bar for ease of operation
4. A Bi directional Order picking Electric trolley of claim 1 where in the said second handle bar assembly comprises of throttle controls, brake lever controls, emergency switch, direction control switch, safety beacon and Barcode scanner system secured to the handle bar for ease of operations
5. A Bi directional Order picking Electric trolley of claim 1 comprises of multi bar link mechanism connecting the first and second handle bar assembly through front and rear wheels assembly resulting in motion and shorter turning radius
6. A Bi directional Order picking Electric trolley of claim 1 comprises of front and rear wheel electric motor assembly capable of receiving commands from the main control board to operate wheels in tandem clockwise, anticlockwise and at relatively different speeds and output torque as per the drive logic decided by the main electronic control board
7. A Bi directional Order picking Electric trolley of claim 1 capable of travelling in sub 900 mm narrow aisle
8. A Bi directional Order picking Electric trolley of claim 1 comprises of first and second tote frame assembly with multiple tote carrying configuration of 2,4,6,8 totes mounted to the front and rear portion of the main chassis
9. A tote frame assembly as per claim 7 with
a. detachable tote frames
b. foldable tote frames mounted to the main chassis through hinges
10. A Bi directional Order picking Electric trolley of claim 1 comprises of a wheel adjustment mechanism to manage floor undulations and vehicle stability
11. A Bi directional Order picking Electric trolley of claim 1 comprises of a pair of self-aligning caster wheel forming a rhombus geometry with the front and rear wheel for better stability and maneuverability
12. A Bi directional Order picking Electric trolley of claim 1 comprises of a rider platform with easy ingress and egress for the operator
13. A Bi directional Order picking Electric trolley comprises of picker user interface and vehicle display, integrated barcode scanners and picking system controlled by the main electronic control board