FIELD OF INVENTION
This invention relates to an improved wheel loading shovel.
PRIOR ART
A wheel loading shovel is known to have been available in art having a
cabin, front glass of which is provided with metallic frame to hold the
glass panel. However, provision of the frame obstructs visibility of the
operator.
The shovel is provided with a fan for cooling which is mounted on engine.
However, this arrangement makes cleaning difficult.
Further, opening of engine cover is tedious and time consuming and the
steering column in the cabin is fixed. Therefore, it is not user friendly.
OBJECTS OF THE INVENTION
The primary object of the present invention is to propose an improved
wheel loading shovel which overcomes disadvantages of the prior art(s).
Another object of the present invention is to propose an improved wheel
loading shovel which provides security to operator.
Further object of the present invention is to propose an improved wheel
loading shovel which is efficient.
Yet another object of the present invention is to propose an improved
wheel loading shovel which prevents tempering of the engine.
STATEMENT OF THE INVENTION
According to this invention there is provided an improved wheel loading
shovel comprising of a cabin having curved section laminated glass and
an adjustable steering column, a fan for cooling pack provided remotely
from the engine, wing type of side opening engine covers and an
electronic device.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Further objects and advantages of this invention will be more apparent
from the ensuing description when read in conjunction with the
accompanying drawings and wherein:
Fig. 1 shows exploded view of front windscreen.
Fig. 2 shows assembled view of glasses on the shovel.
Fig. 3 shows exploded view of the adjustable steering column.
Fig. 4 shows the assembled view of steering column on machine.
Fig. 5 shows the exploded view of the Engine covers.
Fig. 6 shows the assembled view of the engine covers on shovel.
Fig. 7 shows the exploded view of the fan and its group parts.
Fig. 8 shows the assembled view of fan box grille on the shovel.
Fig. 9 shows the block diagram of the ECU and its inputs.
Fig. 10 shows the gauges and instrument cluster displaying
signals/ warnings.
DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO
THE ACCOMPANYING DRAWINGS
The present invention comprising of a cabin having curved section
laminated glass with no metal pieces in between.
The cabin is having for example three curved sectional laminated glass,
which provides excellent visibility and lower waistline. These glasses are
tightly bonded by glass adhesive agents which prevent any dirt entering
into the cabin.
In addition front windscreen is also covered with three grills which
protects the cabin glasses from any falling objects. It provides security to
operator. Now, reference may be made to fig.l and 2 wherein cabin is
provided with atleast three laminated curve sectioned glasses (1&3)
sealed with the help of seals (8, 9 8b 10) on top frame and bottom frames
of the cabin. There is no metal piece or structure in adjacent to the
glasses in side ways. Sides are joined by adding adhesive agent in
between which is clear and transparent in colour. Hence it doesn't affect
the operator's visibility in any angles.
"Steering Column with adjustable arrangements
The adjustable steering column provides additional comfort to the
operator. The operator can till the steering column according to his
comfort level of operating the machine. It has locking arrangements for
locking the position once it is set to the desired position.
Referring to the fig. 3 Steering column (item 2) is inserted into the spline
of steer valve (item 5) which is bolted on the bracket (item. 7) and pivoted
onto the Cab to facilitate movement. Steering column is adjustable to the
front and back along with the slot provided in the column mtg bracker
(item 10). After the desired position is set, locking is done by lock handle
(item 9).
The Wing type of side opening engine covers
The shovel of the present invention also comprising of Engine covers in 3
parts having top panel fixed and 2 wing type opening side engine covers
hinged onto the top panel. Opening and closing of side engine covers are
well supported by gas struts pivoted to the side frames/bulkheads.
The Engine covers for example wing type opening with gas struts
provides effortless opening/closing within no time.
The Left hand and Right hand Engine covers are hinged and retrained in
position by a purpose designed locking device. Opening of the Engine
cover is covered by pressing one single purpose designed level
mechanism. Once the Engine cover is released from its locking device by
this lever, opening is effortless due to purpose designed gas struts
thereby including no manual effort on the person opening the Engine
covers. Thus, opening of the engine covers is effortless and is unlike the
design of other manufactures wheeled loader where the opening of engine
covers is tedious and time consuming.
Referring to the fig. 5, Engine cover has three parts i.e. Top panel (item 3)
and side engine covers Lh 8b Rh (item 1 & 4). Top panel is mounted on
front bulkhead (item 2) and onto rear bulkhead (item 6) with joint plate
(item 9). Side engine covers are hinged (item 11) onto top panel and
supported with gas struts (item 5) which is fixed onto rear bulkhead. The
opening/closing is performed with the help of latch handle (item 14).
There is a provision in latch handle for locking arrangements. The profile
of the engine covers matches the profile of Corner castings as well as the
body structure of rear chassis.
"Remote mounted cooling fan"
The cooling fan is located at the remote location in order to have the
following advantages. Easy cleaning of the radiator cores & operator's
safety. It facilitates the reversible direction rotation/speed change of the
fan because of remote mounting.
The rear grille area of the wheeled loading shovel houses the hydraulic
motor driven fan. This area is so designed that the rear grill together with
fan box can be opened effortlessly due to provision of gas struts by
pulling a retaining knob. The effortless and ease of opening the rear grill
with fan box gives very good accessibility to the cooking pack of the
wheeled loading shovel for cleaning. The fan is well housed inside fan
guard that operator's hand can never be entered inside the fan area while
servicing.
Referring to the fig. 7 Fan (item 12) is coupled to the motor (2) with
coupler (13) wherein said motor is rigidly mounted to the box frame (item
1). The fan is well covered with fan guard (item 5). The rear side is
covered with upper panel (item 4) and rear grille panel (item 3). The
whole rear grille assembly is hinged on top of the corner castings and
well supported with gas struts (item 6) which are mounted on the middle
of corner castings. It gets automatically locked by latch device when it is
pushed into the housing area. A pull knob with cable connects the latch
device, which is provided to release the mechanical latch for opening the
fan box.
Electronic control device for Monitoring Engine
The electronic control device always monitors the engine and prevents
the engine from tampering.
The electronic device stops operation of the engine instantly in case any
specific technical fault is detected with the engine.
It receives four inputs from the engine mounted sensors and switches,
engine water temperature, engine oil pressure, Alternator frequency and
battery charging input from alternator. All these signals are fed to ECU
and instrument cluster simultaneously. If any of the above problems
exists, the warning signal in the instrument cluster glows with audible
warning signals in the instrument cluster glows with audible warning to
alert the operator about the problem and time is provided to operator for
bringing the machine to safe mode parking mode. If the machine is not
switched off by the operator within the time period, the ECU shuts down
the engine automatically after that period. This fool proof function
prevents failure/seizure of engine. All the above four inputs are also
utilized by ECU to sense the actual engine running hours and in turn it
records the actual machine operation hours in a secret memory. These
hours are also recorded in the hour counter installed in the panel for
instrumentation. If the operator tries to disconnect all these signals input
coming from engine, the ECU detects the problem and shut off the
engine. Hence, this ECU makes the engine tamper proof and a protection
devise as well.
Referring to the fig. 9 & 10, Electronic control unit (ECU) gets input from
various sensors (engine coolant temperature, oil pressure, alternator
frequency alternator charging etc.) mounted on engine and feed the data
to the ECU as to the warning displays. If and thing is above the specified
limit, ECU gives warning signal to display it on instrument cluster which
is mounted on front console panel. If engine is continued for running
more than a minute, ECU gives signal to the engine shut off solenoid
value (see fig 10) to shut off the engine, which will stop automatically.
Hence, it prevents the engine from seizure and keeps the engine safe
always. All the above 4 inputs are also utilized by ECU to sense the
actual engine running hours and in turn it records the actual machine
operation hours in a secret memory. These hours are also
recorded in the hour counter installed in the panel for instrumentation.
If the operator tries to disconnect all these signals input coming from
engine, the ECU detects the problem and shuts off the engine. This fool
proof innovation is very helpful to the customers to have long engine life
and record the true engine running hours. The. PWM output port is
provided in the wiring harness as an interface with the ECU to check the
actual hours stored in the secret memory of ECU.
It is to be noted that the present invention is susceptible to
modifications, adaptations and changes by those skilled in the art. Such
variant embodiments employing the concepts and features of this
invention are intended to be within the scope of the present invention,
which is further set forth under the following claims:-
WE CLAIM:
1. An improved wheel loading shovel comprising of a cabin having
curved section laminated glass and an adjustable steering
column, a fan for cooling pack provided remotely from the
engine, wing type of side opening engine covers and an
electronic device.
2. An improved wheel loading shovel as claimed in claim 1 wherein
said curved section laminated glass is provided with no metal
pieces in between in which the glasses are tightly bonded by
glass adhesive agents.
3. An improved wheel loading shovel as claimed in claim 2 wherein
the laminated curve sectioned glasses are sealed with the help
of seals and front windscreen is covered with grills.
4. An improved wheel loading shovel as claimed in any of the
preceding claims wherein the steering column is inserted into
spline of steer valve, which is bolted onto the bracket and
pivoted onto the cab so as to facilitate movement in which the
steering column is provided with locking arrangement for
locking the position.
5. An improved wheel loading shovel as claimed in any of the
preceding claims wherein said engine cover comprising of a
fixed top panel and two wing type opening side engine covers
hinged onto the top panel and supported with gas struts.
6. An improved wheel loading shovel as claimed in any of the
preceding claims wherein the fan is located inside fan guard.
7. An improved wheel loading shovel as claimed in any of the
preceding claims wherein the electronic device monitors the
engine and prevents the engine from tampering such as herein
described.
8. An improved wheel loading shovel substantially as herein
described with reference to the accompanying drawings.

This invention relates to an improved wheel loading shovel comprising of
a cabin having curved section laminated glass and an adjustable steering
column, a fan for cooling pack provided remotely from the engine, wing
type of side opening engine covers and an electronic device.