Plastic fence construction

Claim 2

A plastic fence comprising a plurality of spaced hollow plastic posts, vertically spaced holes in said posts, said holes having substantially parallel sides which are spaced apart a first distance, vertically spaced hollow horizontal plastic rails of substantially uniform continuous hollow rectangular cross section throughout their extent including their ends, each of said plastic rails having outwardly bowed side walls throughout its extent including both of its end portions, said outwardly bowed side walls of each of said rails including its bowed side walls at its end portions being spaced apart a second distance which is greater than said first distance, said outwardly bowed side walls of each of said rails being resilient and flexible at both of said end portions to permit said bowed side walls at both of said end portions of each of said rails to be squeezed together, each of said end portions of said side walls which were squeezed together fitting with direct contact against said substantially parallel sides of said vertically spaced holes with a friction fit.

Claim 3

A plastic fence as set forth in claim 1 including opposed horizontally spaced second holes in adjacent rails, said second holes having substantially parallel second sides which are spaced apart a third distance, vertical plastic members extending between said rails, said vertical plastic members being of substantially uniform hollow cross section throughout their extent, each of said vertical plastic members having outwardly bowed opposed second side walls throughout their extent including outwardly bowed second end portions at both ends which are spaced apart a fourth distance which is greater than said third distance, said opposed second side walls and said second end portions being resilient and flexible to permit said second end portions to be squeezed together to fit into said second holes to thereby provide a tight fit.

Claim 4

A plastic fence as set forth in claim 2 wherein said second holes have first rounded ends, and wherein said vertical plastic members have second rounded ends for complementary mating engagement with said first rounded ends.

Claim 5

A plastic fence as set forth in claim 2 wherein said vertical plastic members have beveled end portions to facilitate assembly into said second holes.

Claim 6

A plastic fence as set forth in claim 1 wherein said plastic hollow posts have flexible walls to permit said rails to extend at different angles.

Claim 7

A plastic fence as set forth in claim 1 wherein said rails have beveled ends to facilitate assembly into said holes in said posts.

Claim 8

A plastic fence as set forth in claim 6 including opposed horizontally second spaced holes in adjacent rails, said second holes having substantially parallel second sides which are spaced apart a third distance, vertical plastic members extending between said rails, said vertical plastic members being of substantially uniform hollow cross section throughout their extent, each of said vertical plastic members having outwardly bowed opposed resilient second side walls throughout their extent including outwardly bowed second end portions at both ends which are spaced apart a fourth distance which is greater than said third distance, said opposed second side walls and said second end portions being resilient and flexible to permit said second end portions to be squeezed together to fit into said second holes to thereby provide a tight fit.

Claim 9

A plastic fence as set forth in claim 7 wherein said vertical plastic members have beveled end portions to facilitate assembly into said second holes.

Claim 10

A plastic fence as set forth in claim 1 wherein said hollow posts have outwardly bowed resilient sides, a cap member for mounting on top of each post, and straight side wall means on each cap member for receiving the top of each post in mating relationship after said outwardly bowed resilient sides of said posts have been squeezed to thereby provide a tight fit.

Claim 11

A plastic fence as set forth in claim 1 including a clearance between adjacent ends of rails within each post to provide room for expansion of said rails.

Claim 12

A plastic fence as set forth in claim 1 wherein said posts have centerlines which are spaced apart a greater distance than the length of said rails, and wherein said spaced posts have facing sides which are spaced apart a shorter distance than the length of said rails, and means in the posts at the ends of a fence to prevent removal of rails from said posts.

Claim 13

A plastic fence as set forth in claim 1 including weep holes in said posts proximate the ground.

Claim 14

A connection between the rail and post of a plastic fence comprising a hollow plastic post, a hole in said post, said hole having substantially parallel sides which are spaced apart a first distance, a plastic rail of substantially continuous hollow rectangular cross section throughout its extent including its end, said plastic rail having outwardly bowed opposed resilient side walls throughout its extent including said end, said outwardly bowed resilient side walls including said end having portions which are spaced apart a second distance which is greater than said first distance, said side walls including said portions at said end being resilient and flexible to permit said portions at said end to be squeezed together to fit into said hole with a friction fit.

Claim 15

A connection between the rail and post of a plastic fence comprising a hollow plastic post, a hole in said post, said hole having substantially parallel sides which are spaced apart a first distance, a plastic rail of substantially continuous hollow rectangular cross section throughout its extent including its end, said plastic rail having outwardly bowed opposed resilient side walls throughout its extent including said end, said outwardly bowed resilient side walls including said end having portions which are spaced apart a second distance which is greater than said first distance, said side walls including said portions at said end being resilient and flexible to permit said portions at said end to be squeezed together to fit into said hole with a friction fit.

Claim 16

A connection as set forth in claim 13 and a second connection between said plastic rail and a vertical plastic member comprising a second hole in said rail, said second hole having substantially parallel second sides which are spaced apart a third distance, a vertical plastic member of uniform hollow cross section throughout its extent, said vertical plastic member having outwardly bowed opposed second side walls throughout its extent including its end, said outwardly bowed side walls including portions at said end being spaced apart a fourth distance which is greater than said third distance, said opposed second side walls at said end being resilient and flexible to permit them to be sqeezed together to fit into said second hole to thereby provide a friction fit.

Claim 17

A connection as set forth in claim 14 wherein said vertical plastic member has a beveled end portion to facilitate assembly into said second hole.

Claim 18

A connection as set forth in claim 14 wherein said second hole also includes first rounded ends, and wherein said vertical plastic member includes second rounded ends for complementary mating engagement with said first rounded ends.

Claim 19

A plastic fence as set forth in claim 1 wherein said outwardly bowed side walls are of uniform cross section throughout their length.

Claim 20

A plastic fence comprising a plurality of spaced hollow plastic posts, vertically spaced holes in said posts, said holes having sides which are spaced apart a first distance, vertically spaced hollow horizontal plastic rails of substantially continuous uniform cross section throughout their extent, said plastic rails having outwardly bowed side walls throughout their extent including their ends, said outwardly bowed side walls including said ends having portions which are spaced apart a second distance which is greater than said first distance, said ends of said side walls being resilient and flexible to permit them to be squeezed together to fit into said holes with a friction fit, opposed horizontally spaced second holes in adjacent rails, said second holes having second sides which are spaced apart a third distance, vertical plastic members extending between said rails, said vertical plastic members having outwardly bowed second side walls throughout their extent including their ends, said outwardly bowed second side walls including their ends having portions spaced apart a fourth distance which is greater than said third distance, said ends of said second side walls being resilient and flexible to permit them to be squeezed together to fit into said second holes to thereby provide a tight fit.

Claim 21

A plastic fence comprising a plurality of spaced hollow plastic posts, vertically spaced holes in said posts, said holes having sides which are spaced apart a first distance, vertically spaced hollow horizontal plastic rails of substantially continuous uniform cross section throughout their extent, said plastic rails having outwardly bowed side walls throughout their extent including their ends, said outwardly bowed side walls including said ends having portions which are spaced apart a second distance which is greater than said first distance, said ends of said side walls being resilient and flexible to permit them to be squeezed together to fit into said holes with a friction fit, opposed horizontally spaced second holes in adjacent rails, said second holes having second sides which are spaced apart a third distance, vertical plastic members extending between said rails, said vertical plastic members having outwardly bowed second side walls throughout their extent including their ends, said outwardly bowed second side walls including their ends having portions spaced apart a fourth distance which is greater than said third distance, said ends of said second side walls being resilient and flexible to permit them to be squeezed together to fit into said second holes to thereby provide a tight fit.

Claim 22

A plastic fence as set forth in claim 18 wherein said second holes have first rounded ends, and wherein said vertical plastic members have second rounded ends for complementary mating engagement with said first rounded ends.

Claim 23

A plastic fence as set forth in claim 18 wherein said vertical plastic members have beveled end portions to facilitate assembly into said second holes.