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Industrial restraint edging system for segmented paving units
| Details |
Inventors: Jones, Stephen;
Assignee:
Primary Examiner: Neuder; William P.
Assistant Examiner:
Attorney, Agent or Firm: Evenson, Wands, Edwards, Lenahan & McKeown
Paving support apparatus is provided which includes substantially vertical strip restraining elements for defining a boundary around paving members and the like which move laterally during use. The support apparatus is disposed below local ground level during use. The vertical strip restraining elements include an inner surface facing toward the paving member for receiving substantially horizontal forces. Horizontal extension elements are provided which extend out from an outer surface of the vertical strip restraining elements in at least the lower region of the upright strip restraining elements for receiving vertical forces relative to the ground surface. Force converting or reinforcing elements are provided for converting the horizontal forces received by the vertical strip restraining elements into vertical forces against the horizontal extension elements, thereby restraining the paving members in the boundary. The horizontal extension elements extend inwardly of the boundary to underlie the paving members and accept vertical forces to thereby clamp the support apparatus and resist horizontal movement thereof. Preferred embodiments include unitary molded plastic support members exhibiting substantially planar upright member portions engageable with paving members, a substantially lower base member portion extending from both sides of the upright member portion by a substantial distance and a reinforced member portion connecting the upright member portion and the base member portion. |
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DETAILED DESCRIPTION The present invention relates to an edging restraint system for maintaining segmented paving units within a predetermined boundary.
In recent years, there has been an increasing use of segmented paving units such as paving stones and paving bricks for forming sidewalks, driveways, industrial and commercial pavements, and road surfaces.
Due to the large variation in color and shape configurations available with paving stones and the like, coupled with their extremely hard traffic bearing characteristics, the use of such paving stones is quite advantageous with respect to the variations and flexibility that one can apply in landscaping projects and the like.
My U.
S.
Pat.
No.
4,863,307, issued Sept.
5, 1989, relates to a paving stone restraint system which has met with substantial commercial acceptance due to its simplicity of construction and reliability and simplicity of installation to hold segmented paving units, such as paving stones and paving bricks in place.
The present invention is directed toward improving on this restraint system, and more particularly on providing for a more rugged and durable restraint system for use in industrial/commercial settings where extremely high forces are applied to the paving surfaces and edge restraint members.
The present invention is also directed toward improving side force resistance characteristics of the restraint system.
Throughout this specification, preferred embodiments for restraining paving stones are described.
It will be understood by those skilled in the art that many aspects of the restraint systems can also be applied to restrain other segmented paving units, such as paving bricks, paving blocks of wood, and the like.
According to especially preferred embodiments of the present invention, an edging system is provided which includes a vertical strip which has a side surface that faces and restrains the paving stones and a horizontal base which is connected to the vertical strip to hold the same in position.
The horizontal base of preferred embodiments of the present invention includes a paving stone supporting extension which protrudes substantially under the paving stones, such that vertical forces acting on the paving stones are transmitted via the sand or other paving stone bedding to clamp this paving stone support extension against lateral outward movement
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