Fence post
AssigneeGallagher Group Limited
InventorRobert Andrew Wade
Life of this patent
Estimating the term…
Abstract
A fence system, post, and method of manufacture are herein disclosed. The post includes a shaft, and an overmold layer extending at least a portion of a length of the shaft. The overmold layer includes a plurality of external attachment locating features for selectively securing wire locating attachments at predetermined locations along the length of the shaft. The fence system includes a plurality of the posts and a plurality of wire locating attachments configured to be attached to the external attachment locating features of the posts.
Claims16
A fence post, including:
- a shaft;
- an overmold layer extending at least a portion of a length of the shaft,
- wherein the shaft includes a plurality of external locating features, each external locating feature including a deviation in a radially outward facing surface of the shaft in contact with the overmold layer,
- wherein the overmold layer includes a plurality of external attachment locating features for selectively securing wire locating attachments at predetermined locations along the length of the shaft, wherein the external attachment locating features project radially outward,
- wherein each of the external attachment locating features includes at least one elongate longitudinal ridge extending longitudinally along at least a portion of a length of the fence post, and at least one elongate transverse ridge extending in a transverse direction relative to the at least one elongate longitudinal ridge,
- wherein the overmold layer includes at least one stress relief feature, wherein the at least one stress relief feature includes one or more of:
- a plurality of transverse stress relief members surrounding the shaft, and spaced apart along the shaft, wherein neighbouring stress relief members are connected by link members on one side of the shaft, alternating between sides along the stress relief feature;
- a series of transverse slots in the overmold layer entering from different but not opposing directions;
- a helix;
- a necked section allowing for stretch;
- one or more breaks in the overmold;
- and
- one or more floating end caps in which shrinkage of the overmold draws the end cap tightly onto the shaft.
A method for manufacturing a fence post having a shaft and an overmold layer extending at least a portion of a length of the shaft, wherein the shaft includes a plurality of external locating features, each external locating feature including a deviation in a radially outward facing surface of the shaft in contact with the overmold layer, wherein the overmold layer includes a plurality of external attachment locating features for selectively securing wire locating attachments at predetermined locations along the length of the shaft, wherein the external attachment locating features project radially outward, wherein each of the external attachment locating features includes at least one elongate longitudinal ridge extending longitudinally along at least a portion of a length of the fence post, and at least one elongate transverse ridge extending in a transverse direction relative to the at least one elongate longitudinal ridge, wherein the overmold layer includes at least one stress relief feature, wherein the at least one stress relief feature includes one or more of:
- a plurality of transverse stress relief members surrounding the shaft, and spaced apart along the shaft, wherein neighbouring stress relief members are connected by link members on one side of the shaft, alternating between sides along the stress relief feature;
- a series of transverse slots in the overmold layer entering from different but not opposing directions;
- a helix;
- a necked section allowing for stretch;
- one or more breaks in the overmold;
- and
- one or more floating end caps in which shrinkage of the overmold draws the end cap tightly onto the shaft,
- the method including:
- positioning the shaft within a cavity of an overmolding mold;
- and
- introducing material into the mold to form the overmold layer on the shaft.
Dependencies are inferred from the claim text.