Side guard fence

Abstract

A side guard fence comprises a plurality of posts arranged at a mutual distance along the edge of a carriage way and being substantially vertically anchored. The fence further comprises substantially horizontal, longitudinal fence members that are attached to the posts and are arranged at mutually spaced apart distances from each other in the vertical direction. The posts are positioned in the slope outside the carriage way or supporting reserve. In some arrangements, the horizontal fence members are anchored to the post by retaining members that are adapted to retain the horizontal fence members during forces caused by collision in a longitudinal direction of the fence members and to release the horizontal fence members when acted upon by forces generated by collisions against a post to which the horizontal fence members are attached. A method of forming a side guard fence is also disclosed.

I claim:  
     
         1 . A side guard fence that comprises a plurality of posts arranged at a mutual distance along an edge of a carriage way and substantially horizontal, longitudinal fence members attached to the posts and arranged at mutually spaced apart distances from each other in a vertical direction, the posts being anchored in a substantially vertically direction in a slope located outside the edge of the carriage way.  
     
     
         2 . A side guard fence as in  claim 1 , wherein the posts are also positioned outside a supporting reserve of the carriage way.  
     
     
         3 . A side guard fence as in  claim 1 , wherein the slope has an inclination that is larger or equal to 1:6.  
     
     
         4 . A side guard fence as in  claim 1 , wherein the posts are mounted without foundations directly in a ground material of the slope.  
     
     
         5 . A side guard fence as in  claim 4 , wherein the posts are mounted within pre-made holes formed in the ground material.  
     
     
         6 . A side guard fence as in  claim 4 , wherein the posts are mounted within holes formed by ramming the posts into the ground material.  
     
     
         7 . A side guard fence as in  claim 1 , wherein the posts extend at least 60 centimeters into a ground material of the slope.  
     
     
         8 . A side guard fence as in  claim 1 , wherein there are more than two horizontal fence members and the mutual spaced apart distances between two adjacent horizontal fence members are substantially equal and substantially constant.  
     
     
         9 . A side guard fence as in  claim 1 , wherein the fence has a number of horizontal fence members that is dependent on a distance at which the posts are located from the carriage way.  
     
     
         10 . A side guard fence as in  claim 1 , wherein the horizontal members are steel ropes.  
     
     
         11 . A side guard fence as in  claim 1 , wherein the horizontal fence members of the fence are anchored to the posts by retaining members that are adapted to retain the horizontal fence members during forces caused by collision in a longitudinal direction of the horizontal fence members, but to release the horizontal fence members when acted upon by forces generated at collision against a post to which the horizontal fence members are anchored.  
     
     
         12 . A side guard fence as is in  claim 11 , wherein the retaining members comprise downwardly angled slots provided in the posts and in which the horizontal fence members are received.  
     
     
         13 . A side guard fence as in  claim 11 , wherein the retaining members comprise hooks that are inserted in slots formed in the posts, the horizontal fence members being passed, through the hooks and the hooks being adapted to come loose from the slots at collision forces by deformation of at least one of the hooks or edges of the slots.  
     
     
         14 . A side guard fence as in  claim 13 , wherein the hooks have two ends that are bent in opposite directions, the ends being positioned inside the slots in a mounted position of the hooks, the hooks near one of its ends being provided with an additional bend permitting the hooks to be hung in the slot with one end outside the slot during positioning of the horizontal fence member in the hooks.  
     
     
         15 . A side guard fence as in  claim 11 , wherein the retaining members comprise substantially vertical slots provided in the posts, the horizontal fence members being received in the slots, the mutual spaced apart distances being determined by spacing members that are fitted in at least one of said slots.  
     
     
         16 . A side guard fence comprising a plurality of posts arranged at a mutual distance along an edge of a carriage way, the posts being substantially vertically anchored, the fence also comprising substantially horizontal, longitudinal fence members that are attached to the posts and are arranged at mutually spaced apart distances from each other in a vertical direction, wherein the horizontal fence members are anchored to the posts by retaining members that are adapted to retain the horizontal fence members during forces caused by collision in a longitudinal direction of the fence members and to release the horizontal fence members when acted upon by forces generated by collisions against a post to which the horizontal fence members are anchored.  
     
     
         17 . A side guard fence as in  claim 16 , wherein the retaining members comprise downwardly angled slots provided in the posts, the horizontal fence members being received in the slots.  
     
     
         18 . A side guard fence as in  claim 16 , wherein the retaining members comprise hooks that are inserted into slots formed in the posts, the horizontal fence members being passed through the hooks, the hooks being adapted to come loose from the slots at collision forces by deformation of at least one of the hooks or edges of the slots.  
     
     
         19 . A side guard fence as in  claim 18 , wherein the hooks have two ends that are bent in opposite directions, the ends being positioned inside the slots in a mounted position of the hooks, the hooks near one of its ends being provided with an additional bend permitting the hooks to be hung in the slot with one end outside the slot during positioning of the horizontal fence member in the hooks..  
     
     
         20 . A side guard fence as in  claim 16 , wherein the retaining members comprise substantially vertical slots provided in the posts, the horizontal fence members being received in the slots, the mutual spaced apart distances being determined by spacing members that are fitted in at least one of said slots.  
     
     
         21 . A method of forming a side guard fence, comprising the steps of: 
 anchoring a series of posts in a substantially vertical direction in along an edge of a carriage way in a slope that is located outside the edge of the carriage way, and    anchoring a plurality of horizontal longitudinal fence members to the series of posts with retaining members that are adapted to retain the horizontal fence members during forces caused by collision in a longitudinal direction of the fence members and to release the horizontal fence members when acted upon by forces generated by collisions against a post to which the horizontal fence members are anchored.    
     
     
         22 . A method as in  claim 21 , wherein the step of anchoring a series of posts further includes anchoring the series of posts outside a supporting reserve of the carriage way.  
     
     
         23 . A method as in  claim 21 , further including forming a series of holes in the ground material of the slope.  
     
     
         24 . A method as in  claim 23 , wherein the step of anchoring a series of posts further includes inserting the series of posts into the series of holes formed in the ground material.  
     
     
         25 . A method as in  claim 21 , wherein the step of anchoring a series of posts further includes ramming the series of posts into a ground material of the slope.