Roller bracket apparatus for an overhead door
First Claim
1. A roller bracket apparatus for use on a track having a vertical portion, a curve, and a horizontal portion, said apparatus comprising:
- a roller assembly adapted for movement along said horizontal track portion and which includes a carriage portion and a link portion projecting from said carriage portion,a push/pull assembly adapted for movement along said track, anda pivot assembly connected between said link portion of said roller assembly and said push/pull assembly,wherein said push/pull assembly includes a first angled portion defining a first bearing surface and where said link portion defines a second angled portion defining a second bearing surface such that movement of said roller assembly and said push/pull assembly along said track causes rotation of said push/pull assembly relative to said roller assembly as said push/pull assembly travels along said curve and said roller assembly travels along said horizontal portion sufficient to cause said first bearing surface to engage said second bearing surface whereby to stop further relative rotation between said push/pull assembly and said roller assembly as said push/pull assembly and said roller assembly travel further along said horizontal portion.
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Accused Products
Abstract
A roller bracket apparatus includes a roller assembly which includes a carriage portion and a link portion projecting from the carriage portion. A push/pull assembly is provided, and a pivot assembly is connected between the link portion of the roller assembly and the push/pull assembly. The carriage portion includes a wheel-support portion and a plurality of axle/wheel assemblies supported by the wheel-support portion. Each of the axle/wheel assemblies includes an axle and a roller wheel connected to the axle. The link portion extends from the carriage portion at an acute angle with respect to a plane common to the top surface of the carriage portion. In an alternatively preferred embodiment of the invention, the push/pull assembly includes a first side portion connected to the article being moved (e.g. an overhead door panel) and an integrated gusset plate portion orthogonally connected between the first side portion and the pivot assembly. The push/pull assembly further includes a transverse angled bearing surface portion orthogonally joined to the gusset plate portion in such a way as to be adapted to engage the link portion and be stopped thereby at the limit of rotation of the push/pull assembly when the latter'"'"'s first side portion becomes horizontally aligned to the roller assembly during its movement along a horizontal portion of track along which the article ultimately moves.
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Citations
10 Claims
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1. A roller bracket apparatus for use on a track having a vertical portion, a curve, and a horizontal portion, said apparatus comprising:
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a roller assembly adapted for movement along said horizontal track portion and which includes a carriage portion and a link portion projecting from said carriage portion, a push/pull assembly adapted for movement along said track, and a pivot assembly connected between said link portion of said roller assembly and said push/pull assembly, wherein said push/pull assembly includes a first angled portion defining a first bearing surface and where said link portion defines a second angled portion defining a second bearing surface such that movement of said roller assembly and said push/pull assembly along said track causes rotation of said push/pull assembly relative to said roller assembly as said push/pull assembly travels along said curve and said roller assembly travels along said horizontal portion sufficient to cause said first bearing surface to engage said second bearing surface whereby to stop further relative rotation between said push/pull assembly and said roller assembly as said push/pull assembly and said roller assembly travel further along said horizontal portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification