Presettable belt tension device
AssigneeSKF GmbH
InventorsManfred Brandenstein, Wolfgang Friedrich, Roland Haas, Gerhard Herrmann, Armin Olschewski
Life of this patent
Estimating the term…
Abstract
A tensioning device is provided with an adjusting element that is adapted to be affixed to the tensioning device after the tension spring therein has been tensioned. The tension can be adjusted to a desired work point after the tensioning element has been mounted on a motor frame or the like.
Claims8
A belt tensioning device which is preadjustable after assembly in an auxiliary device, the device including a mounting element for attachment to an auxiliary device, a supporting member pivotally mounted on said mounting element, a tension roller rotatably carried by said supporting member, and a spring having a first end engaging and secured to and urging said supporting member to pivot relative to said mounting element, the improvement of adjustment indicators on said supporting member and said mounting element respectively, means for pivoting said mounting element relative to the supporting element until said indicators coincide, an adjustment element for engaging said second end of the spring and tensioning said spring relative to said supporting element until a predetermined tension exists therebetween while said indicators coincide, and means for fixing said adjustment element to said mounting element, whereby subsequent pivoting of said adjusting element until said indicators coincide will automatically apply said predetermined tension to said spring.
A belt tensioning device mountable to an auxiliary apparatus, the device having a mounting element, a supporting member rotatable thereon, a tension roller rotatably carried by said supporting member, a spring mounted between said mounting element and said supporting member, the improvement comprising means for rotating the supporting member relative to the mounting element to a predetermined relative position and marking said relative position, means for tensioning said spring to a predetermined stress level while said supporting member is rotated to said marked position, means for fixing said spring relative to said supporting member while the spring is at said predetermined stress level, means for releasing said stress on said spring, means for mounting said device to an auxiliary apparatus, means for rotating said support member relative to said mounting element while said support means and tensioning roller engage said auxiliary apparatus until said marking is again at said predetermined position, and means for fixing said mounting means to said auxiliary apparatus, whereby said spring in said belt tensioning device is adjusted to said predetermined stress level.
A method for assembly of a preadjustable belt tensioning device which has a mounting element, a supporting member capable of pivoting thereon by way of a spring and a tension roller fastened thereon, where one end of the spring is arranged in an adjusting element rotatable with respect to the other end, characterized by the following steps:
- placing adjustment indicators on said mounting element and on said supporting element,
- rotating said elements until said indicators coincide,
- applying force to said spring until a predetermined tension exists,
- fixing said adjustment element to said mounting element while said spring is at said predetermined tension, and
- releasing said force on said spring, said device when attached to an auxiliary device is rotatable until said indicators coincide, whereby said spring will be in said predetermined tension.
Dependencies are inferred from the claim text.