CA1275979C - Material handling truck - Google Patents

Material handling truck

Info

Publication number
CA1275979C
CA1275979C CA 508536 CA508536A CA1275979C CA 1275979 C CA1275979 C CA 1275979C CA 508536 CA508536 CA 508536 CA 508536 A CA508536 A CA 508536A CA 1275979 C CA1275979 C CA 1275979C
Authority
CA
Canada
Prior art keywords
material handling
truck
chasis
affixed
counterweight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA 508536
Other languages
French (fr)
Inventor
John Bentivoglio
Pio Bentivoglio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA 508536 priority Critical patent/CA1275979C/en
Application granted granted Critical
Publication of CA1275979C publication Critical patent/CA1275979C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075Constructional features or details
    • B66F9/07595Cooling arrangements for device or operator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075Constructional features or details
    • B66F9/07554Counterweights

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

ABSTRACT
A Material Handling Truck including a chasis having a top, bottom, front and rear, having affixed to said bottom at one end a counterweight, said counterweight being integrally designed as a component of said chasis, said counterweight having complimentary surfaces and mounting brackets disposed thereupon wherein the engine and wherein the transmission of said truck are secured; whereby said engine and transmissions are disposed in a rearward direction having the weights thereof extending beyond the centre line of the rearward axle thereby becoming a part of the counterweight function, for example resulting from the extension of the drive shaft, thereby positioning the engine and transmission in an improved counterweighing position.

Description

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FIELD OF INVENTION
This invention relates -to Material Handling Trucks and more speciflcally those designed to operate with a load centrally supported at one end of the truck.

BACKG~OUND OF INVENTION
Material Hand].ing Trucks are well known in the art.
Many alternative types are available in the marketpIace having numerous features each claiming to be of superior design or performance. However, one limitation exists namely the need to ` 10 have a counterbalancing weight integrally connected to the truck `: which is of sufficient size to prevent the Material ~andling truck from upsetting when carrying a load at the opposite end to the ~: counterweight. The presence of a counterweight in the design of these units obviously adds to the total weight of the machine and ~; 15 hence to the total cost of the machine. Alternative forms of ;~ counterweights have been adapted to the superstructure of the machine thereby creating an accessibility problem encountered during normal maintenance of the unit. The counterweight prevents the motor cover from being fully pivoted to totally expose the engine oo~mpartment for ease of access during servicing.
It is therefore an object of this invention to provide a material handling truck which incorporates the counterweight within the chasis design thereby reducing the total weight of the ,: ~
unit, by making better use of the weight of the drive mechanisms within the truc~ by repositioning their placement in the engine ~ compartment.

,~ It is a further object of the invention to incorporate , -: .
and fasten a complimentary hood cover at the same end as the counterweight which will pivot out of a serviceman's way during ".maintenance to the engine.

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It is a further object of the invention to provide an engine compartment which is raised by the counterweight disposed below the motor and transmission of the truck, thereby making all the engine components readily available for servicing.
It is a further object of the invention to provide a Material Handling truck which has improved ground clearances to allow negotiation of rough terrain in an alternative embodiment.
Further and other objects of this invention will become apparent to a man skilled in the art when considering the ~10 following summary of the invention and the more detailed .
embodiments of the invention illustrated herein.
SUMMAR~ QF INVENTIQN
According to one aspect of the invention a new Material Handling Truck is provided comprislng a chasis having a top and bottom, front and rear having affixed to said bottom at one end a counterweight, said counterweight being integrally designed as a component of said chasis, said counterweight having ccmplimentary surfaces~and mounting brackets disposed thereupon wherein the engine~and wherein~the transmission of said truck are secured;
~whereby said engine and; said transmission are disposed in a re~arward direction extending beyond the centre line of the rearward ~axle thereby~becoming a part of the counterweight function, for example resulting from the extension of a drive shaft,~ thereby positioning the engine in an improved 25 ~counterweighing position; wherein ~said chasis has integrally connected thereto upon the top at its rearward extremity thereof a cover wherein said cover is fully pivotable from a closed position adjacent the chasis near the driver compartment, thereby protecting the engine compartment from weathering influences to a fully pivotable position thereby allowing a serviceman total ; "
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access to the engine compartment; said engine compartment being raised by the positioning of the counterweight enhancing its accessibility to a serviceman; wherein attached to the chasis ~; beneath the counterweight and beneath the front end of the truck ~ 5 are disposed axles and upon said axles, traction wheels providing ; the ground clearance of the fully assembled unit, from the ground :~; to the bottom of the chasis, allowing for the movement of the : Material Handling Truck over for example rough terrain, without damaging the drive train nor the fully supported and contained engine, whereby the counterweight acts as a protector for the engine compartment; wherein affixed to said chasis at the end remote the counterweight is affixed a load bearing device, such as a hydraulic mast, upon which is connected alternative material handling devices such as forks and having centrally mounted therein a cab for driver operation; wherein the material handling unit is compact manoeuvrable and lightweight because of the chas1s ~: design, being therefor about 2,000 pounds lighter than vehicles within the same class.
: Further a compact designed hood or engine cover is affixed or pinned to the chasis at its rearward extremity said ~ ; hood having a complimentary shape to said chasis whereby the hood can pivot from a fully opened position to a fully c~osed position;
.~ said hood having contained upon the surface thereof ventilation .
po:rts for the encouragement of fresh air into the engine compartment preventing overheating.

BRIEF DE$ÇRIPTION OF THE DRAWIN~$

Figure 1 1s a side vlew of a material handling truck illustrating the components thereof~of a preferred embodiment of ~ the invention.

.: 30 Figure 2 i.s a perspective view of the hood or cover for ; ~,, ,, ,,, l ~ .... ....

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the engine compartment of a pre~erred embodimen~ of the invention.
Figure 3 is a side view of a material handling truck illustrating the pivoting hood at a fully extended position for a preferred embodiment of the invention.
Figure 4 is reference side view of a material handling truck within the prior art illustrating the normal positioning of a counterweight.
; Figure 5 is a side view of a material handling truck illustrating the novel positioning of the counterweight and further the engine with relation to the counterweight.
Figure 6 is a rear view of the chasis of the material handling truck illustrating the counterweight being integrally combined with the chasis sustaining the engine in a preferred embodiment of the invention.
Figure 7 is a perspective view of the rearward section of the chasis illustrating the components thereof in a preferred embodiment of the invention.
Figure 8 is a side view of the rearward section of the -~ chasis illustrating the stepped profile of the rear frame in a 20~ preferred embodiment of the invention.
DETAIL~D D~SG~L~ION OF THE~DRAWIN~S EMBODYING THE INV~NTION
~; Referring now to the drawings depicting a preferred embodiment of the invention in ~igure 1, Material Handling Truck 10 is illustrated in side view having chasis 20, and attached to chasis 20 forwardly is mas-t 30 attached by hydraulic cylinders 40 at pins 50 (said mast being illustrative only of the load bearing ability of the unit), (which may be embodied on alternative forms for example a shovel blade) said chasis 20 having affixed to its underside 90 at a rearward position counterweight 91 integrally formed with chasis 20 of substantial material to provide ., .

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~' , ,' '' ,' :'~ ' sufficient counterweighing for any load carried forwardly by hydraulic mast 30 upon forks 60, said counterweight being shaped in complimentary fashion to the engine compartment which it will enclose. Chasis 20 has connected to its bottom axles not shown upon which tires 70 rotate, said tires 70 maintaining the underside 90 of chasis 20 a distance H from the ground not numbered. The distance H allows in this preferred embodiment a ground clearance for Material Handling Truck 10 allowing movement of said Truck upon construction cites and farmers' fields wherein encumbrances may be located. Should a large obstacle be inadvertently encountered, counterweight 91 of chasis 20 will protect the engine compartment from impact damages. Chasis 20 - further has cab 100 and driver compartment 105 disposed upon its top at a centrally forward location. Further chasis 20 has disposed upon its top at a rearward position remote counterweight ~` 91 a hood or engine cover 80 of complimentary design to protect engine compartment 150 (see Figure 3).
Referring now to Figure 2, hood or engine cover 80 is illustrated in perspective having a top, bottomr front, rear, and sides, having disposed upon its top an exhaust pipe 120 angled at its top 121 away from the driver compartment 105; ha~ing positioned at the rear thereof and upon the sides thereof fresh air vents 140 and 110 respectively and being pinned or alternatively connected to chasis 20 by pin mountings or ~alternative fasteners 130 whereby hood 80 may be fully closed as illustrated in Figure 1 to fully open as illustrated in Figure 3 whereby engine cover 80 is fully pivoted on pin mountings 130 to be totally removed from interfering with a serviceman working ; within engine compartment 150.

0 Referring now to Figure 3, Material Handling Truck 10 is .l, ..", ....

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~ 6 -illustrated in side view as in Figure 1 with the exception that hood 80 is fully pivoted away from engine compartment 150 thereby exposing fully engine components not numbered, for servicing. In an alternative posture hood 80 may be fully removed easily without a great deal of effort.
Referring now to Figures 4 and 5, two Material Handling Trucks are illustrated: Figure 4 demonstrating the normal location of the engine compartment with respect to the rearward ~`~ centre line of tires 70 and the normal location of the counterweight 170 being a complete and separate component of the work unit and extending beyond the limits of the chasis 160 leaving engine compartment 150 open on the underside of said -~ chasis increasing the risk of damage when the unit negotiates rough terrain; said counterweight 170 further increasiny the overall length of the truck and hence the turning radius, and further containing more material to counteract the weight Wl set ~upon the forks 60, but also to counteract that portion of the engine compartment 150 forwardly beyond rearward centre line C
acting as a fulcrum; alternatively in Figure 5 illustrating a `~ 20 preferred embodiment of the invention engine compartment 150 is positioned such that rearward centre line D of tires 70 is in front of a majority and in an alternative embodiment all of the `~ engine compartment thereby reducing the amount of material required in the counterweight 91 and further by allowing an 25~ increased portion of the weight of engine compartment 150 to be .~ .
used as a counterweight to load Wl on Forks 60; wherein counterweight 91 is disposed on the underside 90 of chasis 20 ~ thereby reducing the turning radius of the Material Handling Truck ; ~ 10 and further protecting engine compartment 150 upon its ,30 underside when negotiating rough terrain.
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', . ' ' ,' :. ' ' : ' . ' ' ' ' ~2~i9~9 Referring now to Fiyure 6, the rearward sections of chasis 20 is illustrated in isolation from truck 10 illustrati.ng upon its rearward extremity disposed beneath the chasis frame a counterweight 91 having a cross-section compatibly shaped to attach thereto at mounting points 92 and 97 engine compartment 150 containing normal engine components, further illustrating the protection which counterweight 91 offers to the engine compartment when negotiating rough terrain.
Referring now to Figures 7 and ~, the rearward portions of chasis 20 is i.llustrated in perspective and side views, the forward portion not shown being of alternative embodiments including wheel covers and forward mountings for Material Handling Equipment such as forks, shovels, clamps etc., wherein said chasis 20 contains upon its top engine mounts 92, and 97 and upon its :~ 15 bottom counterweight 91 having a stepped or alternative profile wherein engine compartment 150 is compatibly moun-ted upon mounting ~: brackets 92 and 97 and the engine compatibly extends down toward `: ~
the top:94 of counterweight 91, wherein top 94 has exterior edges 94a), 94b) and rear 98 with rearward extension 9~a) such that ~:~ 2Q counterweight 91 and components thereof will compatibly mesh with frame members 95 and 93a), thereby providing a solid complete : chasis upon which to assemble the Material Handlin~ Truck.
As many changes can be made to the preferred embodiments without departing from the scope of the invention; it is intended that all matter contained herein be interpreted as illustrative of the invention and not in a limiting sense.

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Claims (17)

1. A Material Handling Truck comprising a chasis having a top, bottom, front and rear, having affixed to said bottom at one end a counterweight, said counterweight being integrally designed as a component of said chasis, said counterweight having complimentary surfaces and mounting brackets disposed thereupon wherein the engine and wherein the transmission of said truck are secured; whereby said engine and transmissions are disposed in a rearward direction having the weights thereof extending beyond the centre line of the rearward axle thereby becoming a part of the counterweight function, for example resulting from the extension of a drive shaft, thereby positioning the engine and transmission in an improved counterweighing position.
2. The Material Handling Truck of Claim 1 wherein said chasis has integrally connected thereto upon the top at rearward extremity thereof a cover wherein said cover is fully pivotable from a closed position adjacent the chasis near the driver compartment thereby protecting the engine compartment from weathering influences to a fully pivotable position thereby allowing access to the engine compartment without obstructions;
said cover having a complimentary shape to said chasis whereby the cover has contained; upon the surfaces thereof ventilation ports for the encouragement of fresh air into the engine compartment.
3. The Material Handling Truck of Claim 1, wherein said engine compartment is raised by the complimentary positioning of the counterweight providing ready access to the components of the engine compartment.
4. The Material Handling Truck of Claim 2 wherein said engine compartment is raised by the complimentary positioning of the counterweight providing ready access to the components of the engine compartment.
5. The Material Handling Truck of Claim 1 wherein attached to the chasis beneath the counterweight and beneath the front end of the truck are disposed axles and upon said axles, traction wheels providing the ground clearance for the fully assembled truck allowing for the movement of the Material Handling Truck over rough terrain, whereby the counterweight acts as a shield for the engine compartment on its underside.
6. The Material Handling Truck of Claim 2 wherein attached to the chasis beneath the counterweight and beneath the front end of the truck are disposed axles and upon said axles traction wheels providing the ground clearance for the fully assembled truck allowing for the movement of the Material Handling Truck over rough terrain, whereby the counterweight acts as a shield for the engine compartment on its underside.
7. The Material Handling Truck of Claim 3 wherein attached to the chasis beneath the counterweight and beneath the front end of the truck are disposed axles and upon said axles traction wheels providing the ground clearance for the fully assembled truck allowing for the movement of the Material Handling Truck over rough terrain, whereby the counterweight acts as a shield for the engine compartment on its underside.
8. The Material Handling Truck of Claim 4 wherein attached to the chasis beneath the counterweight and beneath the front end of the truck are disposed axles and upon said axles traction wheels providing the ground clearance for the fully assembled truck allowing for the movement of the Material Handling Truck over rough terrain, whereby the counterweight acts as a shield for the engine compartment on its underside.
9. The Material Handling Truck of Claim 1 wherein affixed to said chasis at the front end is affixed a load bearing device, such as a hydraulic mast upon which is connected material handling devices.
10. The Material Handling Truck of Claim 2 wherein affixed to said chasis at the front end is affixed a load bearing device, such as a hydraulic mast upon which is connected material handling devices.
11. The Material Handling Truck of Claim 3 wherein affixed to said chasis at the front end is affixed a load bearing device, such as a hydraulic mast upon which is connected material handling devices.
12. The Material Handling Truck of Claim 4 wherein affixed to said chasis at the front end is affixed a load bearing device, such as a hydraulic mast upon which is connected material handling devices.
13. The Material Handling Truck of Claim 5 wherein affixed to said chasis at the front end is affixed a load bearing device, such as a hydraulic mast upon which is connected material handling devices.
14. The Material Handling Truck of Claim 6 wherein affixed to said chasis at the front end is affixed a load bearing device, such as a hydraulic mast upon which is connected material handling devices.
15. The Material Handling Truck of Claim 7 wherein affixed to said chasis at the front end is affixed a load bearing device, such as a hydraulic mast upon which is connected material handling devices.
16. The Material Handling Truck of Claim 8 wherein affixed to said chasis at the front end is affixed a load bearing device, such as a hydraulic mast upon which is connected material handling devices.
17. The Material Handling Truck of Claim 9 wherein affixed to said chasis at the front end is affixed a load bearing device, such as a hydraulic mast upon which is connected material handling devices.
CA 508536 1986-05-06 1986-05-06 Material handling truck Expired CA1275979C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 508536 CA1275979C (en) 1986-05-06 1986-05-06 Material handling truck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 508536 CA1275979C (en) 1986-05-06 1986-05-06 Material handling truck

Publications (1)

Publication Number Publication Date
CA1275979C true CA1275979C (en) 1990-11-06

Family

ID=4133078

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 508536 Expired CA1275979C (en) 1986-05-06 1986-05-06 Material handling truck

Country Status (1)

Country Link
CA (1) CA1275979C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478192A (en) * 1990-02-13 1995-12-26 Tovel Manufacturing Limited Boom operated fork truck

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478192A (en) * 1990-02-13 1995-12-26 Tovel Manufacturing Limited Boom operated fork truck

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