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US 4,790,421 AGranted
Roller assembly
AssigneeThe Boeing Company
InventorFrederick J. Gorges
Life of this patent
Estimating the term…
Abstract
A roller assembly to be used to support cargo which is being moved over a floor surface. The assembly comprises an elongate horizontally disposed mounting member with roller units mounted thereto. Each roller unit comprises an outer roller member, two support bearings, two locating elements, a center shaft, and an end nut. Each locating element has cylindrical portions surrounding the shaft and butting against one another.
Claims19
A roller assembly comprising:
- a. a mounting structure comprising two laterally spaced mounting members,
- b. a shaft having a longitudinal axis, first and second end portions, and a middle portion, the end portions of the shaft being adapted to be mounted to said mounting members,
- c. first and second locating members, each comprising a main mounting portion, adapted to be mounted to and positioned around said shaft, and an end spacing portion,
- d. first and second bearing members, adapted to take primarily radial loads, and being adapted to be positioned adjacent to and axially inwardly from, the end spacing portions of the first and second locating members, respectively, and positioned around and supported from the main mounting portions of the locating members,
- e. a roller member adapted to be positioned around said shaft and bearing members, and supported by said bearing members,
- f. said assembly being characterized in that in an assembled position said roller member is in operative engagement with said spacing portions and in direct load bearing relationship with said bearing members in a manner that while radial loads are transmitted from said roller member into said bearing members, axial loads on said roller member are transmitted into said locating members and to said mounting structure;
- g. the main mounting portions of the locating members having axially inwardly located end portions which engage one another so as to locate said locating members relative to one another on said shaft.
4 more elements
A roller assembly comprising:
- a. a mounting structure comprising two laterally spaced mounting members,
- b. a shaft having a longitudinal axis, first and second end portions, and a middle portion, the end portions of the shaft being adapted to be mounted to said mounting members.
- c. first and second locating members, each comprising a main mounting portion, adapted to be mounted to and positioned around said shaft, and an end spacing portion,
- d. first and second bearing members, adapted to take primarily radial loads, and being adapted to be positioned adjacent to and axially inwardly from, the end spacing portions of the first and second locating members, respectively, and positioned around and supported from the main mounting portions of the locating members,
- e. said mounting members firmly engaging said locating members to press said locating members against one another.
2 more elements
A roller unit adapted to be mounted to a mounting structure comprising two laterally spaced mounting members, said unit comprising:
- a. a shaft having a longitudinal axis, first and second end portions, and a middle portion, the end portions of the shaft being adapted to be mounted to said mounting members,
- b. first and second locating members, each comprising a main mounting portion, adapted to be mounted to and positioned around said shaft, and an end spacing portion,
- c. first and second bearing members, adapted to take primarily radial loads, and being adapted to be positioned adjacent to and axially inwardly from, the end spacing portions of the first and second locating members, respectively, and positioned around and supported from the main mounting portions of the locating members,
- d. a roller member adapted to be positioned around said shaft and bearing members, and supported by said bearing members,
- e. said unit being characterized in that in an assembled position said roller member is in operative engagement with said spacing portions and in direct load bearing relationship with said bearing members in a manner that while radial loads are transmitted from said roller member into said bearing members, axial loads on said roller member are transmitted into said locating members;
- f. The main mounting portions of the locating members having axially inwardly located end portions which engage on another so as to locate said locating members relative to one another on said shaft.
3 more elements
Dependencies are inferred from the claim text.