JPH10114958A - Loader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify operation and manufacture by installing a sub-frame having mounting means for a rear wheel and an engine and being supported to a part of a chassis by a vibration-isolation mounting means. SOLUTION: A sub-frame 30 is composed of a mounting means for normal rear wheels for wheels and a mounting means 32 for an engine. A pair of arms 34, 34 consist of an approximately flat front section 33 projected to a front section from the sub-frame 30 in the sub-frame 30. Openings 35 corresponding to the openings 24 of a main rear chassis section are formed to the front section 33 and the arms 34. The sub-frame 30 is made up of an approximately flat section 36 installed to the front section 33 by an inclined section 37 and other inclined sections projected to the front and upper sections of the section 36. Vibration isolation members are arranged to the upper and lower sections of the sub-frame 30. Accordingly, the operation and manufacture of the loader can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chassis, a pair of front and rear wheels capable of engaging with the ground, a handling device movably mounted on a vehicle, and moving the handling device relative to the vehicle. , An engine for driving the rear wheels and supplying power to the driving means, and an operator station, referred to hereinafter as a "specified type". .

[0002]

2. Description of the Related Art Various types of unloading vehicles have been conventionally known, as can be understood from the above-mentioned types.

[0003]

There is a need for an improvement in such a prior art device which further simplifies its operation and manufacture.

It is an object of the present invention to provide a new and improved handling vehicle of the specified type.

[0005]

SUMMARY OF THE INVENTION In accordance with the present invention, we have identified a subframe which includes mounting means for a rear wheel and an engine and which is supported on a portion of a chassis by vibration isolation mounting means. To provide a kind of cargo handling vehicle.

[0006] The handling vehicle may be an articulated vehicle wherein the chassis portion comprises a rear chassis portion and the vehicle also comprises a front chassis which is articulated to the rear chassis portion to steer motion thereto.

The rear chassis portion can also support a station for the operator.

[0008] The front chassis portion may have handling equipment and drive means attached thereto.

A handling device may be mounted for up and down movement.

A handling device may be mounted on a forklift truck type mast.

Alternatively, the handling equipment can be mounted on a boom assembly that is mounted for pivotal movement about a horizontal axis.

The vibration insulating attachment means may comprise at least one elastically deformable member.

A portion of the chassis in which the vibration isolation attachment means overlies a portion of the subframe, a resiliently deformable member disposed therebetween, and the portion of the chassis and the portion of the subframe. And a rigid member extending substantially perpendicular to the portion of the chassis and the portion of the subframe.

[0014] The vibration isolation attachment means may attach the subframe to the chassis such that the subframe is supported by the chassis portion, wherein the rigid member is provided on the chassis and the subframe. Wherein the bolts pass through a pair of resiliently deformable members located above and below the subframe and in contact with the subframe. The resiliently deformable member disposed between a frame and the chassis is also in contact with the chassis portion, and a substrate is disposed below and in contact with the lower resiliently deformable member. You.

[0015] The vibration isolation attachment means may further comprise a spacer disposed within the opening of the subframe and having a central hole through which the bolt extends.

A protrusion may be provided on the subframe of the chassis portion through which the bolt also passes.

[0017] A compressive force can be applied to the vibration isolation attachment means by a nut attached to the bolt.

The resiliently deformable member comprises a substantially flat body having a hole for receiving the bolt or, where appropriate, a spacer, and the resiliently deformable member is provided in an opening in the subframe. A portion protruding from a surface of the body adapted to be received.

[0019] The elastically deformable member may be made of rubber.

A plurality and preferably four of said vibration insulating attachment means may be provided.

[0021] The sub-frame may comprise buffer means for limiting the range of movement of the sub-frame. The shock absorber means may comprise a shock absorber consisting of yet another resiliently deformable member, each shock absorber being arranged to face a portion of the chassis.

The shock absorber means for limiting back-and-forth movement may comprise a pair of supports projecting substantially vertically from a portion of the subframe and facing the shock absorber with each other, wherein the shock absorber comprises the chassis. Are arranged between the shock absorbers.

[0023] The shock absorber means for limiting the back-and-forth movement comprises two spaced-apart parallel abutment surfaces,
May comprise a mounting block having a relatively slender body, preferably having a generally vertical, protruding portion,
The block is mounted under the subframe such that the protrusion passes through an opening in the subframe.

A pair of generally parallel longitudinal members, wherein the chassis portion has a forward end and a rearward end, a first transverse member connected between the longitudinal members disposed toward a forward end of the longitudinal member. The directional member may comprise a second lateral member disposed behind the first lateral member.

The second transverse member may comprise the member of the chassis when shock absorber means are provided for limiting back and forth movement of the chassis member between the shock absorbers.

[0026] The second transverse member may comprise a box section member.

[0027] An opening is provided in the chassis portion so that attachment means can be engaged to attach the subframe to the chassis portion.

The opening may be provided in a protruding member extending inward from each longitudinal member.

An opening may also be provided in the second transverse member.

The sub-frame is a substantially flat front portion from which a pair of arms project forward, a substantially flat middle portion located at a level below the front portion, and an inclined portion connecting the front and middle portions; And further inclined portions projecting above and behind the intermediate portion.

The sub-frame is arranged such that the front portion projects substantially forward of the second transverse member, and the rear portion projects substantially rearward of the second transverse member.

[0032] The attachment means may be provided on the front portion.

[0033] The wheel mounting means may be provided on the front portion and the engine mounting means may be provided on the rear portion.

The engine mounting means may comprise a plurality and preferably four towers extending upward from the subframe. Each tower may consist of a pair of substantially vertical members connected at their upper ends by substantially horizontal members.

The present invention will be described below by way of example with reference to the accompanying drawings.

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 3 show a handling vehicle of the kind identified by the reference numeral 10, the vehicle comprising a front part which is articulated together in a conventional manner by an articulation joint indicated by the reference numeral 10c. 10a and a rear part 10b, and suitable hydraulic ram means 10d provided between the rear part 10b and the front part 10a to steer the movement around the articulation joint. For example, + or-about 45 degrees of motion about a substantially vertical axis is provided for steering. In addition, articulating joints can provide limited momentum in a substantially vertical plane, for example, on the order of + or -10 degrees.

The front portion 10a has a front chassis portion 11a which is connected to the rear chassis portion 11b by a connecting joint 10c. The front chassis portion 11a has a pair of front wheels 12 and a pair of vertical struts, each strut supporting at its forward end an arm 15 of a boom assembly that supports a bucket 16 or other handling equipment. A drive means consisting of a hydraulic ram 17 moves each column 14 and each arm 1 to raise and lower the instrument 16 around a pivot connection to the column 14.
5 is connected. Suitable extrusion rams 17a are provided for tilting the handling equipment by suitable links.

The rear chassis portion 11b includes a rear wheel 13,
It supports an operator station 18 in the form of an operator cab and an engine compartment 19 arranged behind the cab 18.

Referring now to FIG. 4, the rear chassis portion 1
1b comprises a pair of substantially parallel plate-like longitudinal members 21 connected at the front end by a box part transverse member 22 and behind it by a second box part transverse member 23. Four openings 24 are provided in the main rear chassis portion 11b with which the attachment means 40 is engaged. The opening 24 is located on the second lateral member 23 and on a substantially horizontal inward protrusion 25 attached to each of the longitudinal members 21.

The subframe 30 is not shown in FIG.
It comprises a mounting means for the normal rear shaft 13b for the wheels 13 and a mounting means 32 for the engine E. The sub-frame comprises a generally flat front portion 33 from which a pair of arms 34 project forward. Opening 2 of main rear chassis
4 correspond to the front part 33 and the arm 34.
Is provided. The sub-frame 30 comprises a substantially flat portion 36 attached to the front portion 33 by an inclined portion 37, and further inclined portions projecting forward and upward of the portion 36. The engine mount 32 comprises a tower having a pair of parallel substantially vertical members 39 joined at its upper end by a substantially horizontal portion 39a, with elastic mounting means allowing the engine to be mounted on the mount 32. It is provided in order to.

The mounting means 40 is shown in cross-section in FIG. 5 and the mounting means comprises a projection which is welded to the upper surface of the chassis portion 11b, the openings 24 and 35 of the chassis portion 11b and the subframe 30, respectively. 57, and a nut 52 is provided at the lower end of the bolt.
Having. Elastically deformable vibration insulating members 53 and 54
Are arranged above and below the sub-frame 30. The vibration isolating member comprises a nitrile rubber having a Shore hardness of 60-70 Shore, but other rubber members having a Shore hardness in the range of 50-80 and preferably 60-70 Shore, or vibration isolating in any other desired manner. It is also possible to consist of a member that provides A substrate 55 is disposed below the vibration isolation member 54 and a spacer 56 is disposed in the opening 35. The substrate 55, the vibration insulating members 54 and 53, the spacer 56, the subframe 30, and the chassis member 11b are held in contact by the pressure applied by the bolt 51 and the nut 52.

[0042] Shock absorber means are provided to limit horizontal back and forth and side motion of the subframe.

The lateral shock absorber means comprises a resiliently deformable pad 42a disposed in a D-shaped opening 42 formed in the side 43 of the rear portion 36 of the subframe, the shock absorber pad 42a being an outer pad. Facing and chassis part 11
b contacts the adjacent portion 11c.

Referring also to FIG. 6, front and rear shock absorber means 4
1 is a front part 33 on the longitudinal axis of the sub-frame 30
And the shock absorber surfaces 41a face each other. When the sub-frame 30 is attached to the rear chassis portion 11b, the second transverse member 23 is located between the shock absorber surfaces 41a.

The front and rear shock absorber means 41, shown in cross section in FIG. 6, penetrate the subframe 30 and
A relatively slender body 60 welded to the sub-frame 30 consisting of vertical projections 61, 62 provided with
Consists of Resiliently deformable pads 69,7 having shock absorber surfaces 41a attached to these surfaces 63,64.
Two plates 65, 66 having non-circular recesses 67, 68, respectively, intended to hold zero. Chassis part 11b
Pads 69, 7 are provided by sub-frame 30 attached to
0 engages the second transverse member 23 to limit forward and backward movement with respect to the subframe.

It will be appreciated that the vibration isolation attachment means and the shock absorber means can be arranged if desired.

The cabinet 18 is attached to the bracket 18a of the chassis portion 11b by vibration isolation means in a conventional manner.

If desired, the invention can be implemented in any other type of handling vehicle. For example, the front end loader has an integral chassis such that the front and rear chassis portions are an integral part of a single chassis.

The chassis may be of any desired shape and the term is used herein to refer to at least one of the bodies.
Portions are also used to include the monocot-type structure that forms the chassis.

The loader arm assembly may have a single arm, if desired. The instrument can be supported by a backhoe or slid up or down the phono-lift mast if desired.

The foregoing description, or means, in a special form or in terms of means for performing the disclosed functions, or methods for obtaining the disclosed results, or classes or groups of substances or compositions as appropriate, or The features disclosed in the claims or in the accompanying drawings may be used individually or in any combination of such features in practicing the invention in its various forms.

[0052]

As described above, the present invention relates to a chassis,
A pair of front and rear wheels that can be engaged with the ground, a handling device movably attached to the vehicle, a driving unit for moving the handling device with respect to the vehicle, and driving the rear wheel and An unloading vehicle comprising an engine for supplying power to driving means, and an operator station, comprising: a mounting means for the rear wheel and the engine; and one of the chassis by vibration isolation mounting means.
Since the structure is constituted by the sub-frames supported by the parts, a new and improved cargo handling vehicle which further simplifies its operation and manufacture can be provided.

[Brief description of the drawings]

FIG. 1 is a side view showing a specified type of cargo handling vehicle.

FIG. 2 is a front view of the vehicle shown in FIG. 1;

FIG. 3 is a rear view of the vehicle shown in FIG. 1;

FIG. 4 is an exploded view of a chassis portion and a subframe implemented in the vehicle of FIG. 1;

FIG. 5 is a cross-sectional view of the vibration insulating attachment means implemented in the vehicle of FIGS.

FIG. 6 is a sectional view of the shock absorber means of the vehicle shown in FIGS. 1 to 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Handling vehicle 10a Front part 10b Rear part 11a Front chassis part 11b Rear chassis part 12 Front wheel 13 Rear wheel 21 Longitudinal member 22 Box part lateral member 23 Second box part lateral member 24 Opening 25 Projection part 30 Sub Frame 31 Opening 32 Engine mounting means 33 Front part (of subframe) 34 Arm 39 Vertical member 40 Mounting means 41 Buffer means 41a Buffer surface 51 Bolt 53 Vibration insulating member 54 Vibration insulating member 56 Spacer 57 Projection

Claims (40)

[Claims] 1. A chassis, a pair of front and rear wheels capable of engaging with the ground, a handling device movably mounted on a vehicle, and driving means for moving the handling device relative to the vehicle. An unloading vehicle comprising an engine for driving the rear wheel and supplying power to the driving means, and an operator station, comprising a mounting means for the rear wheel and the engine, and a vibration isolation mounting means. And a sub-frame supported by a portion of the chassis. 2. The vehicle according to claim 1, wherein said vehicle is an articulated vehicle, said chassis portion comprising a rear chassis portion and said vehicle also comprising a front chassis articulated to said rear chassis portion to steer motion thereto. The cargo handling vehicle according to claim 1, wherein: 3. The vehicle of claim 2, wherein said rear chassis supports said station for an operator. 4. The handling vehicle according to claim 2, wherein the front chassis portion has the handling device and the driving means attached to the front chassis portion. 5. The vehicle according to claim 1, wherein the handling device is mounted for vertical movement. 6. The vehicle according to claim 5, wherein the handling device is attached to a forklift truck type mast. 7. The handling vehicle according to claim 5, wherein said handling equipment is mounted on a boom assembly mounted for pivotal movement about a horizontal axis. 8. The handling vehicle according to claim 1, wherein said vibration insulating attachment means comprises at least one elastically deformable member. 9. A portion of the chassis wherein the vibration isolation attachment means overlies a portion of the sub-frame, an elastically deformable member disposed therebetween, and the portion of the chassis and the sub-portion. 9. A vehicle according to claim 8, comprising a rigid member extending substantially perpendicularly to said part of said chassis and to said part of said sub-frame to suppress separation of said part of the frame. . 10. A vehicle according to claim 9, wherein said vibration insulating attachment means attaches said subframe to said chassis such that said subframe is supported by said chassis portion. 11. The vehicle according to claim 9, wherein the rigid member comprises a bolt penetrating a corresponding opening provided in the chassis and the subframe. 12. The bolt extends through a pair of resiliently deformable members located above and below the subframe and in contact with the subframe, and between the subframe and the chassis. 12. The vehicle according to claim 11, wherein the resiliently deformable member disposed on the chassis is also in contact with the chassis portion. 13. The unloading vehicle according to claim 12, wherein a substrate is disposed below and in contact with said lower elastically deformable member. 14. The method according to claim 11, wherein said vibration insulating attachment means is further arranged in said opening of said subframe and said bolt comprises a spacer having a central hole therethrough. 9. The vehicle for handling cargo according to claim 1. 15. The cargo handling vehicle according to claim 11, wherein a protrusion is provided on the sub-frame of the chassis portion through which the bolt also passes. 16. A handling vehicle according to claim 11, wherein a compressive force is applied to said vibration insulating mounting means by a nut mounted on said bolt. . 17. The method according to claim 11, wherein the resiliently deformable member comprises the bolt or, if appropriate, a substantially flat body having a hole in which the spacer is received. 9. The vehicle for handling cargo according to claim 1. 18. The vehicle of claim 17, wherein the resiliently deformable member has a portion projecting from a surface of the body adapted to be received in an opening in the subframe. . 19. The vehicle according to claim 8, wherein the elastically deformable member is made of rubber. 20. A vehicle according to claim 1, wherein a plurality of said vibration insulating attachment means are provided. 21. A cargo handling vehicle according to claim 1, wherein said sub-frame comprises buffer means for limiting the range of movement of said sub-frame. 22. The shock absorber means according to claim 21, wherein the shock absorber means comprises a shock absorber consisting of yet another resiliently deformable member, each shock absorber being mounted facing a portion of the chassis. The handling vehicle described in. 23. A handling vehicle according to claim 21, wherein said shock absorber means is provided to limit lateral movement of said sub-frame. 24. The vehicle according to claim 21, wherein the shock absorber means is provided to limit the longitudinal movement of the sub-frame. 25. The shock absorber means for limiting the fore-aft movement comprises a pair of supports projecting vertically from the subframe portion and facing the shock absorber to each other, wherein the shock absorber is a member of the chassis. Are arranged so as to be arranged between the shock absorbers.
4. The cargo handling vehicle according to 4. 26. The shock absorber means for limiting the fore-aft movement comprises a mounting block having two protrusions providing spaced parallel abutment surfaces, the block being formed by the sub-blocks. 26. The vehicle of claim 25, wherein the vehicle is mounted below the subframe so as to pass through an opening in the frame. 27. A chassis wherein the chassis portion has a pair of substantially parallel longitudinal members having a forward end and a rearward end, a first member connected between the longitudinal members disposed toward a forward end of the longitudinal member. The cargo handling vehicle according to any one of the preceding claims, comprising a lateral member of a first lateral member and a second lateral member disposed behind the first lateral member. 28. The vehicle of claim 27, wherein said second lateral member comprises said member of said chassis disposed between said shock absorbers. 29. The vehicle according to claim 27, wherein the second lateral member comprises a box-shaped member. 30. The chassis of claim 2, wherein an opening is provided in said chassis portion so that mounting means engages to mount said subframe to said chassis portion.
9. The handling vehicle according to 9. 31. The system according to claim 30, wherein the opening is provided in a projecting member extending inward from each longitudinal member.
The handling vehicle described in. 32. A cargo handling vehicle according to claim 30, wherein an opening is provided in the second lateral member. 33. The sub-frame connects a substantially flat front portion with a pair of arms projecting forward therefrom, a substantially flat middle portion located at a level below the front portion, the front and middle portions. The handling vehicle according to any one of the preceding claims, further comprising another inclined portion protruding upward and rearward from the inclined portion and the intermediate portion. 34. The sub-frame according to claim 27, wherein the sub-frame is arranged such that the front portion projects substantially forward of the second transverse member. The handling vehicle described in. 35. The vehicle according to claim 33, wherein the attachment means is provided on the front part. 36. The vehicle according to claim 33, wherein said wheel mounting means is provided on said front part and said engine mounting means is provided on said rear part.
A cargo handling vehicle according to any one of the preceding claims. 37. The vehicle according to claim 1, wherein the engine mounting means comprises a plurality of towers extending upward from the subframe. 38. The unloading vehicle according to claim 37, wherein each tower comprises a pair of substantially vertical members connected at their upper ends by substantially horizontal members. 39. A handling vehicle substantially similar to that described herein with reference to the accompanying drawings. 40. Any novel feature or novel combination of features described herein and / or in the accompanying drawings.