Coating apparatus – Projection or spray type – Work-supported and guided carriage
Patent
1986-05-08
1987-07-07
Beck, Shrive P.
Coating apparatus
Projection or spray type
Work-supported and guided carriage
118305, 118DIG11, 51410, 51429, 182136, B05B 1500
Patent
active
046779361
DESCRIPTION:
BRIEF SUMMARY
The invention concerns a device according to the preamble of claim 1 and is based on means operated by motor energy such as are known for removing branches of standing trees or the application of insulation to large pipelines. There, the whole holding devices (for example, according to West German AS No. 1,254,900) are progressively movable and actuatable by remote control over the surface of the workpieces (trees) as the work advances. At the same time, although use was made of holding devices formed of individual elements and controllable together, there was no type of construction that proved adequate for firm tool guidance and movement at constant distance along diameters, lengths and contour cross sections that change to varying extents, since a corresponding gear rim was needed and the individual elements were flexible plastic tubes.
This type of construction thus offered no economically reasonable and time-saving possiblity for systematic adaptation to frequently changing shapes and contours of a workpiece and to shifting the longitudinal guides (rails) in transverse direction by remote control as work progressed while maintaining the distance to the workpiece surface, as must be the case, for instance, when using automatic submarine sandblasting machines and coating machines.
The problem to be solved by the invention consists of improving said prior art toward increased adaptabiity to the kinds of workpiece and tasks to be performed and toward variability, mobility and possible remote control even for the intermittent use in difficult surroundings (great heights, under water, hot zones, etc.) while obtaining a more reliable firm guidance at constant distance from the workpiece.
The solution to this problem according to the characteristic part of claim 1 consists specifically in providing a mechanical assembly technique of supporting and tightening elements adaptable to all possible contours and diameters by means of interlocking link plates--chain links of equal size at constant distance to form a reinforceable chain adapted to the working width concerned providing a mechanical assembly technique of supporting and tightening elements adaptable to all possible contours and diameters by means of link plates-chain links of equal size for link chains adapted or adjustable to the respective working scope, thus eliminating the need to limit the use of the holding device similar to workpieces or shapes. In addition an advancing mechanism now included in the link chains provides the possibility of progressive movement through which the whole device can be shifted across the main direction of movement of the tool or of the link chain.
This device can be used on workpieces of both even and streamlined shape. Specially favorable conditions of use result from the adaptability achieved when working on supporting structures for deep-sea platforms, on transmitting poles, bridge piles, etc. where the link chain can be circularly wrapped around the workpieces to be processed, and where the diameters of the pipes often change to a certain extent during the progress of construction. With the device according to the invention, it is possible by briefly loosening the link chains and concomitantly inserting or removing link plates to change quickly and easily the length of the chain within broad limits without the need for new tightening means, controls, etc.
The chain-like assembled link plates with adusting members actuatable by auxiliary energy may even serve as supports, which themselves also assume the guidance of the brackets to be eventually mounted on the holding device and movable in the main direction of the chains, and are progressively transferable likewise by remote control, by means of additional adjusting members, from one work station to the next.
Other embodiments of the invention are given in the sub-claims:
According to claim 2 a specially reliable chain arrangement also adequate for use on vertical surfaces and easily adaptable to different diameters within certain ranges is obtained even without rep
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Beck Shrive P.
ZF-Herion-Systemtechnik GmbH
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