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US 5,489,056 AGranted
Endless chain conveying device with spring biased wedge tensioner
AssigneeKabelmetal Electro GmbH
InventorHarry Staschewski
Life of this patent
Estimating the term…
Abstract
A conveying device for transportation of extended line products such as cables or tubes has tension elements to exert a tension force on at least two tension chain wheels in the direction away from the driving chain wheels. A self-locking wedge prevents the tension chain wheels from moving back and forth. The automatic adjustment of the roller chains reduces wear of the conveying device and prevents speed changes during transportation of the extended line product.
Claims11
A conveying device for an extended line product comprising:
- (a) a conveying device housing;
- (b) a rotatable driving chain wheel mechanism fixedly mounted in a radial direction with respect to said conveying device housing;
- (c) a tension chain wheel mechanism spaced from said rotatable driving chain wheel mechanism;
- (d) at least one endless roller chain driveably mounted around said rotatable driving chain wheel mechanism and said tension chain wheel mechanism;
- (e) means mounted on said at least one endless roller chain for gripping the extended line product;
- and
- (f) means for tensioning said at least one endless roller chain comprising:
- (i) bearing housings rotatably mounting said tension chain wheel mechanism, said bearing housings mounted for moving said tension chain wheel mechanism in a direction away from said driving chain wheel mechanism thereby tensioning said at least one endless roller chain;
- (ii) means for exerting a tension force on said tension chain wheel mechanism in a direction away from said driving chain wheel mechanism to move said bearing housings away from said driving chain wheel mechanism thereby tensioning said at least one endless roller chain, and
- (iii) a self-actuating wedge device allocated to each bearing housing and cooperating with said means for exerting a tension force on said tension chain wheel mechanism, each device including a wedge pulled by a tension element into engagement with its associated bearing housing to prevent movement of its associated bearing housing in a direction toward said rotatable driving chain wheel mechanism as said means for exerting a tension force moves said bearing housings away from said driving chain wheel mechanism.
7 more elements
Dependencies are inferred from the claim text.