Trolley and rail systems for extension and retraction arrangements
First Claim
1. A trolley and rail system for use in relation to an extension and retraction arrangement, the trolley and rail arrangement comprising:
- a trolley structure;
a rail arrangement with a first end, a second end, and a body portion wherein the rail arrangement comprises first and second rails retained in substantially parallel spaced orientation relative to one another;
a means for retaining the trolley structure in relation to the rail arrangement for axial extension and retraction along the body portion of the rail arrangement;
wherein the trolley structure has a first portion for engaging the first rail, a second portion for engaging the second rail, and a body portion between the first and second portions and wherein the body portion has an alcove therein disposed inboard of the first and second rails; and
a means for retaining an article to be supported in relation to the alcove in the body portion of the trolley structure wherein the means for retaining an article to be supported comprises a support arm with a first end coupled to the trolley structure within the alcove in the body portion of the trolley structure, an elongate body portion that projects beyond the alcove in the body portion of the trolley structure, and a second end spaced from the first end of the support arm.
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Accused Products
Abstract
A trolley and rail system for use in relation to an extension and retraction arrangement with a trolley structure retained for axial extension and retraction along a body portion of a rail arrangement comprising first and second rails disposed in substantially parallel spaced orientation. The trolley structure can have a central portion and first and second wing portions with load bearing wheels for rolling along rigid bearing surfaces of the first and second rails. The bearing surfaces and the wheels can have correspondingly contoured profiles. The trolley structure can have a ventrally disposed alcove. Constant force springs can assist in a travel of the trolley structure in relation to the rail arrangement. The trolley structure or a support arm coupled thereto can have threaded mounting holes for retaining a flat panel monitor.
89 Citations
22 Claims
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1. A trolley and rail system for use in relation to an extension and retraction arrangement, the trolley and rail arrangement comprising:
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a trolley structure; a rail arrangement with a first end, a second end, and a body portion wherein the rail arrangement comprises first and second rails retained in substantially parallel spaced orientation relative to one another; a means for retaining the trolley structure in relation to the rail arrangement for axial extension and retraction along the body portion of the rail arrangement; wherein the trolley structure has a first portion for engaging the first rail, a second portion for engaging the second rail, and a body portion between the first and second portions and wherein the body portion has an alcove therein disposed inboard of the first and second rails; and a means for retaining an article to be supported in relation to the alcove in the body portion of the trolley structure wherein the means for retaining an article to be supported comprises a support arm with a first end coupled to the trolley structure within the alcove in the body portion of the trolley structure, an elongate body portion that projects beyond the alcove in the body portion of the trolley structure, and a second end spaced from the first end of the support arm. - View Dependent Claims (2, 3, 4, 5)
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6. A trolley and rail system for use in relation to an extension and retraction arrangement, the trolley and rail arrangement comprising:
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a trolley structure with a central portion and first and second wing portions; a rail arrangement with a first end, a second end, and a body portion wherein the rail arrangement comprises first and second rails retained in substantially parallel spaced orientation relative to one another and wherein each of the first and second rails has a dorsal side, a ventral side, and a rigid bearing surface; a means for retaining the trolley structure in relation to the rail arrangement for axial extension and retraction along the body portion of the rail arrangement; at least one load bearing wheel rotatably retained in relation to each of the first and second wing portions of the trolley structure for engaging the respective rigid bearing surfaces of the first and second rails; wherein each of the first and second rails has a rigid dorsal bearing surface facing the dorsal side of the respective rail and a rigid ventral bearing surface facing the ventral side of the respective rail, wherein the rigid dorsal bearing surface of each rail is disposed in general opposition to and in a facing relationship with the rigid ventral bearing surface of the respective rail, and wherein the trolley structure has at least one load bearing wheel disposed to engage the rigid dorsal bearing surface and at least one load bearing wheel to engage the rigid ventral bearing surface whereby the load bearing wheels are disposed between the dorsal and ventral bearing surfaces of the first and second rails and whereby the load bearing wheels can impart opposed dorsal and ventral forces on the first and second rails. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A trolley and rail system for use in relation to an extension and retraction arrangement, the trolley and rail arrangement comprising:
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a rail arrangement comprising first and second rails retained in substantially parallel spaced orientation relative to one another wherein each rail has a dorsal side, a ventral side, a first end, a second end, and a body portion with a rigid bearing surface therealong; a trolley structure with a central portion and first and second wing portions wherein the central portion of the trolley structure has a ventrally disposed alcove therein disposed inboard of the first and second rails; at least one load bearing wheel rotatably retained in relation to each of the first and second wing portions of the trolley structure for engaging the respective rigid bearing surfaces of the first and second rails; and a means for retaining an article to be supported in relation to the central portion of the trolley structure wherein the means for retaining an article to be supported comprises a support arm with a first end coupled to the alcove in the central portion of the trolley structure, an elongate body portion that projects beyond the alcove in the body portion of the trolley structure, and a second end spaced from the first end of the support arm. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification