Marine propulsion – Self-propelled vehicle having land and water propulsion means – Having separated propulsion means for land and water
Reexamination Certificate
2000-09-18
2001-08-14
Sotelo, Jesus D. (Department: 3617)
Marine propulsion
Self-propelled vehicle having land and water propulsion means
Having separated propulsion means for land and water
Reexamination Certificate
active
06273767
ABSTRACT:
The invention relates to a machine for performing work on land and/or in water, which comprises an underframe which moves on wheels or corresponding mechanism, a platform body on top of the underframe, an extension arm attached to the underframe which turns in relation to the underframe and platform body and a working implement attached to the extension arm.
There are many different apparatuses and machines which have extension arms, or the like, with a shovel, forklift fork, lifting platform or other implement. These implements are connected to conventional land machines moving on wheels or roller-type underframe, or a corresponding type of machine, and the said implements are used to perform different types of jobs. These machines and implements are generally used for carrying out different on-land work. To do work in water, there are separate machines which are built differently. At present, there are no machines which can do different jobs both on land and in or on water. At present, machines are only intended for one kind of job, but there are machines or apparatuses which are such that the work implement can be altered to do other jobs.
There are many disadvantages involved in moving earth or corresponding masses with the present machines. Presently, machines naturally can only move as much earth or other mass substance as wall fit in/on the machine's shovel, forklift fork or corresponding hoisting implement, which is, in general, a relatively small amount. The method used in filling and emptying the shovel on conventional machines is based on the process of the shovel, or corresponding implement, being pushed under or into the mass. Thus, the weight of the machine is used and the power used to load the mass is transferred to the ground via the machine wheels or corresponding base. Use of these machines presupposes that the ground is such that it will provide enough friction to prevent the machine from rolling. The machines are used to raise ground substance or other mass from the ground and then transfer it to the desired location. During the transfer, the ground substance, or other mass, is in the shovel or corresponding implement, which is, in some phase of the transfer, at least partially outside of the machine. If the machine's center of gravity or of the load is such that the machine is not stable, problems may arise in the event of an overload.
The present invention seeks to provide a machine in which the aforementioned disadvantages have been eliminated. In particular, the invention seeks to provide a machine which is suitable for use in different types of jobs on land and/or in water and is easy to adapt to different work purposes. Further, the invention seeks to provide a machine with an advantageous structure, in that It is simple and easy to use. A specific intention is to provide a machine which is safe to use.
The object of the invention is accomplished by means of a machine, the characteristics of which are set forth in the claims.
A machine in accordance with the invention has a telescopic extension arm, to the end of which is attached a detachable work implement. Additionally, the platform body is connected to the underframe in such a way that the platform body can move longitudinally along the length of the underframe, and the front edge of the platform body is essentially open for loading or unloading. This kind of platform body turns in relation to the underframe in the desired way, for example, so that its front edge touches the ground or other base and the platform body is in an angled position. Using the telescopic extension arm, the work implement can be moved to the desired place in relation to the underframe and the platform body. Since the work implement is detachable, it is easy to change it and replace it with another work implement.
In one advantageous embodiment of the invention, the platform body is pivotally connected to the underframe and advantageously rotates in relation to the pivotal center. Thus, the platform body can easily and simply be shifted In the desired direction without having to turn the underframe.
In one additional advantageous embodiment of the invention, the machine comprises an attached extension arm, an essentially plate-like grabbing plate to move the mass from the excavation area to the platform body and then out of the platform body. With this kind of grabbing plate, moving mass, which can be either ground mass or other mass, is done effectively, quickly and safely. When using the machine to move mass, the platform body is shifted so that it is angled downwards and resting against the ground. In this downward slanting position it is easy to load the platform body and correspondingly to unload it. The transfer of the mass is based on couple force. The force is applied by the grabbing plate to moving the mass. In the loading process, the grabbing plate is carried a distance from the end of the platform body, then pushed into the mass and drawn back toads the platform body, whereupon the grabbing plate either moves the mass to the platform body and/or the pulling force of the grabbing plate simultaneously causes the edge of the platform body to be immersed into the mass. In practice, the grabbing plate and the platform body move simultaneously, thus forming a couple force which does the work without the underframe having to move while the platform is being loaded. Thus, using the machine, mass can be loaded without the need to direct force towards the ground in order to move the mass. The ground only bears the weight of the machine and the mass. The machine can be used on ground where conventional machines are not able to load mass. Mass substances or individual objects, for example, from water or ice, can be loaded onto the machine.
When the platform body is full, it can be shifted on the underframe of the machine. Thus, the mass and the platform body remain in close proximity to the underframe and wheels so the machine is especially stable and transport is easy and simple. The mass can even be conveyed forward while the machine is moving, if the mass is relatively solid. If the mass is easily agitated, it is advantageous to use the grabbing plate in the front part of the platform body as a cover to prevent the run-off of mass.
The machine can of course be used in the usual way to do work and move on wheels or rollers, in which case the blade of the front edge of the platform body can perform clearing or other jobs or, correspondingly, mass or corresponding substance can be handled with the grabbing plate or corresponding implement.
In another advantageous embodiment of the invention, the machine comprises a vessel which moves on water, and inside of which there is space to fit the underframe of the machine, and in said space support components for the machine have been installed, while the corresponding support components have been attached to the underframe in order to detachably connected the underframe and platform body to the vessel. With this kind of a vessel, a machine in accordance with the invention can be transferred to water using the vessel, the machine can perform jobs in and on the water. Thus, the machine can accomplish different kinds of jobs in the water which correspond to the jobs it can perform on land. Additionally, the machine can be moved in the desired way from one place to another.
In another advantageous embodiment of the invention, the machine comprises moving devices which are attached to the vessel and are used to move the support components vertically in the vessel. Using the moving devices, the underframe and all machinery attached to it can be moved vertically and horizontally in different ways, whereupon the machine can effectively work in water, for example, to dredge mass, in this case, with moving devices attached to the vessel, the underframe of the machine is at an incline so the platform body can push forward and transfer mass into the platform body from the water bottom.
In the following embodiment of the invention, the support components comprise runners which run
Force Pair Oy
Pillsbury & Winthrop LLP
Sotelo Jesus D.
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