Tool driving or impacting – With vehicle support for drive – Drive structure moved to nonuse position for transport
Patent
1980-08-01
1984-04-17
Mackey, Robert R.
Tool driving or impacting
With vehicle support for drive
Drive structure moved to nonuse position for transport
180324, 180 696, E21C 1102
Patent
active
044429045
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a combined vehicle, such as a truck, tractor and the like, and a working machine, such as a drop-hammer for forming holes, a drilling machine or the like.
One object of the invention is to increase the field of use of a vehicle of the described kind, without seriously limiting the possibilities of the vehicle to be driven along the roads and highways.
Another object of the invention is to provide a working machine which is equipped to carry out specific work and which can be driven between different working sites quickly and comfortably, and which is economical in operation.
It has previously been proposed to mount a working machine, such as a drop-hammer or drilling machine, on the chassis or floor of a vehicle, and to provide means whereby said working machine can be operated from a fixed location on the vehicle or from a non-fixed location.
The vehicle according to the invention is provided with an additional driving mechanism, e.g. a hydraulic motor, having driving elements which are movable between an active and an inactive position and which engage the wheels of the vehicle or the transmission system of said vehicle in a manner to slowly propel the vehicle, and a separate remote-control means arranged to control the vehicle steering system; and in that means are provided for enabling said additional drive mechanism and said remote-control means to be operated from said operating location.
The additional drive mechanism and remote-control means enable the vehicle to be driven between various, closely adjacent locations on a working site where specific work is to be carried out, without the driver or operator needing to use the normal drive and steering means of the vehicle for this purpose. At the same time, the vehicle can be driven in a conventional manner to the working site in question, where the driver of the vehicle can be employed to operate the working machine mounted on the vehicle. The combination according to the invention affords particularly useful advantages in those cases where similar work is to be carried out at various, closely adjacent locations, such as the making of holes for fence posts along a road, in which case the working machine has the form of a drop-hammer, or when a plurality of closely adjacent drill holes are to be made in conjunction with a blasting operation, in which case the working machine may comprise a drilling machine.
One very important advantage is that the normal driving and steering systems of the vehicle can remain more or less intact, despite the provision of the additional driving mechanism and the separate remote-control means. Thus, this means that a vehicle converted in accordance with the invention fulfils the road-worthiness requirements etc. applicable when the vehicle is driven along roads and highways.
In practice, the working machine is preferably arranged on the vehicle in a manner such as to enable it to move between a rest position and a transport position, and one or more working positions at the side of and/or behind the vehicle.
The advantage is gained whereby the working machine can be readily transported to the working site in question, where the vehicle is readily converted to said working machine.
For the purpose of facilitating this conversion, the working machine is preferably arranged so that it can be swung around at least two mutually perpendicular axes and so that it can be displaced horizontally in the working position, i.e. transversely of and/or parallel with the longitudinal axis of the vehicle.
In accordance with one embodiment, a frame structure associated with the working machine is arranged for vertical movement, e.g. by telescoping so that it can serve as a vehicle-support element when the movable part of said working machine carries out work.
A simple and useful vehicle remote-control means can be provided by mounting in the center of the steering-wheel arrangement, an output shaft of a slowly rotatable motor, e.g. a hydraulic motor. This output shaft can be arranged to control the conven
REFERENCES:
patent: 2728463 (1955-12-01), Beckwith
patent: 3384186 (1968-05-01), Broderson et al.
patent: 3507338 (1970-04-01), McWaters et al.
patent: 3515228 (1970-06-01), Henson
patent: 3576218 (1971-04-01), Lisenby
patent: 3754604 (1973-08-01), Inaba et al.
patent: 3833071 (1974-09-01), Koosman
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