NZ719980B2 - A carriage for use with a roadway, guardrail safety barrier system - Google Patents
A carriage for use with a roadway, guardrail safety barrier system Download PDFInfo
- Publication number
- NZ719980B2 NZ719980B2 NZ719980A NZ71998012A NZ719980B2 NZ 719980 B2 NZ719980 B2 NZ 719980B2 NZ 719980 A NZ719980 A NZ 719980A NZ 71998012 A NZ71998012 A NZ 71998012A NZ 719980 B2 NZ719980 B2 NZ 719980B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- post
- carriage
- attachment
- engagement means
- securement
- Prior art date
Links
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- 238000010276 construction Methods 0.000 claims abstract description 10
- 230000000875 corresponding Effects 0.000 description 10
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- 230000037250 Clearance Effects 0.000 description 7
- 230000035512 clearance Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0407—Metal rails
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0407—Metal rails
- E01F15/0423—Details of rails
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0407—Metal rails
- E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0461—Supports, e.g. posts
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0461—Supports, e.g. posts
- E01F15/0469—Covers, e.g. of ground surface around the foot
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0484—Installing; Repairing; Adjusting
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones
- E01F9/61—Special features of delineator posts, e.g. with parts cantilevered toward the roadway or fixed vertically on a tilted surface
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/619—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings with reflectors; with means for keeping reflectors clean
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
- E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2207—Sockets or holders for poles or posts not used
- E04H12/2215—Sockets or holders for poles or posts not used driven into the ground
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/006—Caps or covers for posts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
- E04H17/22—Anchoring means therefor, e.g. specially-shaped parts entering the ground; Struts or the like
Abstract
carriage (71.070) for use with a roadway, guard rail or safety barrier system which has a beam and post construction, is disclosed. The carriage (71.070) is adapted to support the beam and mount the beam to the post, and has an inner face which in use faces an outer face of the post. The carriage (71.070) includes a securement receiving means for securing the beam to the carriage (71.070) where the carriage (71.070) is sized and shaped so that in use, during an impact, the carriage (71.070) travels longitudinally relative to the post and does not engage or will minimize engagement with formations on the post. The securement receiving means aligns a securement means located therein with one or more engagement means on the post. The securement means engages with the one or more engagement means during the longitudinal travel to provide resistance to movement of the carriage (71.070) with respect to the post. The inner face includes a recess, groove or channel to avoid contacting formations on the post which hinder sliding movement of the carriage along the post, where the recess, groove or channel has a longitudinal axis generally parallel to a longitudinal axis of the post. (71.070) includes a securement receiving means for securing the beam to the carriage (71.070) where the carriage (71.070) is sized and shaped so that in use, during an impact, the carriage (71.070) travels longitudinally relative to the post and does not engage or will minimize engagement with formations on the post. The securement receiving means aligns a securement means located therein with one or more engagement means on the post. The securement means engages with the one or more engagement means during the longitudinal travel to provide resistance to movement of the carriage (71.070) with respect to the post. The inner face includes a recess, groove or channel to avoid contacting formations on the post which hinder sliding movement of the carriage along the post, where the recess, groove or channel has a longitudinal axis generally parallel to a longitudinal axis of the post.
Description
NZDIV2
A Carriage for use with a Roadway, Guardrail Safety Barrier System
Field of the ion
This invention relates to an improved barrier uction, such as for roadway,
guard rail, or safety barrier including a roadside post attachment, a post, a method of making
the post, assembling of the barrier, a post cap and post delineators suitable for use with “Z”
section posts.
Background of the invention
The construction of a roadway barrier, important in providing roadway safety,
has been the subject of development for many years. Improvements in roadway barrier
constructions which provide better safety, or better control of the r’s performance, are
desirable.
Summary of the invention
The present invention provides a roadway, guard rail or safety barrier having
a post and beam construction wherein the beam is mounted to the post by means of a
ge, the beam being secured to the ge by a securement means, the ge being
d to travel longitudinally relative to the post in the event of a collision, the post further
including at least one carriage support means, and one or more engagement means on an
outer face of the post, the engagement means being adapted to be engaged by the
ment means to provide resistance to movement of the carriage with respect to the post,
wherein the carriage is sized and shaped so as to not engage or to minimise engagement with
the engagement means during the movement.
The one or more engagement means can each comprise one or more
projections which extend from or are proud of an outer face or portion of the post.
The engagement means can be of a shape which is one of the ing: a
crescent shape; a cuneiform shape; a chevron shape; a boomerang shape; a part circular
shape; a part elliptical shape; a part square shape; a part rectangular shape, a triangular
shape.
The one or more engagement means can be formed by a n of the post
being moved through an outer surface of the post so as to plastically deform the n,
without completely separating the portion from the outer surface.
The engagement means can be formed by deforming a strip of
predetermined width, the width being measured in the direction of travel of the carriage relative
703349NZDIV2
to the post, from the post outwardly so that plastic deformation of the strip occurs, wherein the
strip is not deformed beyond the tensile strength of the material that the post is made of.
The engagement means can be a section of the post which extends from or
is proud of an outer face of the post and has two ends which remain connected to the post and
central section which is proud of the outer face of the post.
The post can e a plurality of engagement means located along a
udinal axis of the outer surface of the post.
The width of the at least one engagement means, as ed in the
direction of travel of the carriage relative to the post, determines the force at which the
engagement means will fracture or shear when engaged by the securement means during
movement of the carriage relative to the post.
The post can have a plurality of the engagement means, and each of the
engagement means have one or more of the ing es: are of the same width, as
measured in the direction of travel of the carriage relative to the post; have widths that are of
different magnitudes; have widths of different magnitudes, such that the magnitude of the width
of sive engagement means increases in the direction of travel of the carriage with
respect to the post; include a pin that is received by a through aperture in the post, for
obstructing travel of the carriage with respect to the post; e a pin that is received by a
through aperture in the post, for obstructing travel of the carriage with respect to the post, the
pin having a weakened neck portion which engages an inner surface of the carriage.
The securement means can be a bolt which engages a thread on the
carriage means and when the bolt secures the beam to the carriage, with the carriage mounted
on the post, an end of the bolt will be at or near to an outer e of the post, so as to engage
the at least one engagement means after the carriage moves with respect to the post.
The ly of the securement means to assemble the post, carriage and
beam, can prevent the carriage and thus the beam from being lifted off the post prior to a
collision.
The securement means is adapted to engage at least one of the one or more
engagement means during a ion.
The carriage has a formation or recess which will allow the carriage to travel
over or past the engagement means, but which will not allow the carriage pass the carriage
support means.
The carriage support means is one or more of the following: a cantilevered
tab which is formed by g and shearing a portion of the post;
703349NZDIV2
attached to the post along a horizontal attachment edge; attached to the post along a
longitudinal attachment edge; a separate component attached to the post so that a portion
thereof is in the path of the carriage.
The one or more engagement means each including one or more projections
which extend from or are proud of an outer face of the post, wherein each projection is formed
by a portion of the post protruding through the outer face.
The portion can be connected at opposed ends to the post, and is plastically
deformed t separating the portion from the outer face.
The present invention also provides a post for a roadway, guard rail or safety
barrier as described above, wherein one or more the projections is of one of the following: a
crescent shape; a cuneiform shape; a chevron shape; a boomerang shape; a part ar
shape; a part elliptical shape; a part square shape; a part rectangular shape, a triangular
shape.
Each of the one or more engagement means is one or more of the following:
formed by stretching a strip of predetermined width, the width being measured in a direction
along a longitudinal axis of the post, so that a c deformation of the strip occurs; formed by
stretching a strip of predetermined width, the width being measured in a direction along a
udinal axis of the post, so that a plastic deformation of the strip occurs, the strip is
stretched within the tensile strength of the material of the post; has two ends which remain
connected to the post, and a central section which is proud of the outer face of the post; has
two ends which remain connected to the post, and a central section which is proud of the outer
face of the post, the ends being located toward a longitudinal axis of the post and the central
section being located away from the longitudinal axis of the post.
The outer face of the post can have at least one h aperture for
receiving one of the following: a pin; a pin with a ed neck portion at the end of the pin
that is located away from the post.
The post can be one of the following shapes: a Z post; I-post, C-post, a
Charlie post, a rectangular post, an H post, U post an O-post.
The present ion also provides a method for forming a post as bed
above, including steps of feeding a sheet metal blank through one or more rolls to form the
post, cutting or slitting ns of the post and deforming the portions to form the engagement
means.
The method can include the steps of cutting or slitting portions from a blank,
the cut or slit portions being located to pond to the ment means, deforming the
703349NZDIV2
cut portions to form the engagement means, and then feeding the blank through one or more
rolls to form the post, the rolls g clear of the engagement means during roll forming the
post.
The present invention r provides a carriage for use with a y,
guard rail or safety barrier system which has a beam and post construction, the carriage being
adapted to support the beam and mount the beam to the post, the carriage having an inner
face which in use faces an outer face of the post, the carriage including a securement receiving
means for securing the beam to the carriage, wherein the carriage is sized and shaped so that
in use it will not engage or will minimize engagement with formations on the post.
The inner face can include a recess, groove or channel adapted to in use
avoid contacting formations on the post which hinder sliding nt of the carriage along
the post.
The , groove or channel can have a longitudinal axis generally parallel
to a longitudinal axis of the post.
The recess, groove or channel can be one of the following: extends through a
full height of the carriage, as ed in the longitudinal direction of a sliding movement of
the carriage; extends h a portion of the height of the carriage, as measured in the
longitudinal direction of a sliding nt of the carriage.
The ment receiving means can include one or more of the following:
one or more threaded holes, and in use the ed hole receives a bolt for ng the
beam to the carriage; one or more threaded holes extending from an outer face of the carriage
and opens into the recess; one or more ed holes provided through a flange which
extends from a main body of the carriage.
The ge can include one of the following: a middle section flanked on
each side by a free end, wherein the attachment means is provided in the middle section; a
middle section flanked on each side by a free end, wherein the attachment means is provided
in the middle section, wherein the free ends are shaped and sized to in use guide a sliding
movement of the carriage along the post; a middle section flanked on each side by a free end,
wherein the attachment means is provided in the middle section, wherein one of the free ends
terminates in a hook or bearer portion which extends toward an inner surface of the middle
section; a middle section flanked on each side by a free end, wherein the attachment means is
provided in the middle section, wherein the inner surface carries one or more bearing pads,
wherein in use a front face of the post is adapted to fit between the hook and the at least one
bearing pad.
703349NZDIV2
The present invention further provides a carriage for use with a roadway,
guard rail or safety barrier system which has a beam and post construction, the carriage being
adapted to t the beam and mount same to the post, the carriage having an inner face
which in use faces the post, the ge including a post ment portion having a first
aperture for receiving a securement means to attach the carriage to the post, and a beam
attachment n having a second aperture for receiving a second securement means to
attach the beam to the carriage.
The first aperture can be elongated, wherein in use a longitudinal axis of the
first re is parallel to a longitudinal axis of the post.
The post ment portion can lie against an outer e of the post, and
the beam attachment portion is located away from the outer surface of the post.
The carriage can further include an intermediate portion interconnecting the
post attachment portion and the beam attachment n.
The beam attachment portion can be located above the post attachment
portion.
The present invention further provides a post attachment arrangement having
an attachment tab adapted for attachment to a segment of a Z post, and a transverse segment
to which the tab is affixed.
The present invention further provides a delineator attachment arrangement
for a Z post including a tab adapted for attachment to an e segment of a Z post, and
wherein the transverse segment is an end engagement segment adapted to engage a section
of the end of a Z post.
The end engagement segment can be one or more of the following:
transverse to the tab; includes a substantially planar flange; in the form of a pair of triangular
segments; the plane of the engagement segment is transverse to the plane of the tab; a cap.
The tab can be one of more of the following: ms to a portion of a Z post
cross-section; a substantially planar element; includes one or more attachment apertures;
attached to an exterior edge of one of the triangular segments; skewed in relation to the
ator; the plane of the tab (the tab plane) and the plane of the ator are skewed
about a common axis.
The arrangement can include one of the following: a pair of attachment tabs;
a pair of attachment tabs wherein each attachment tab has a mutually parallel segment; a pair
of tabs that define a slot adapted to receive a portion of the e segment of a Z post
therein.
703349NZDIV2
The present invention also provides a cap for a Z post including at least one
engagement tab adapted to engage at least a portion of the cross-section of a Z post.
The cap can include one or more of the following: a pair of attachment tabs
forming a l on the underside of the cap, the channel being d to receive a portion
of a Z post; a downward extending skirt adapted to engage with the outer side of a portion of a
Z-post; a slot through which a delineator can pass; a slot through which a delineator can pass
wherein, in use, the slot is oriented to present the longitudinal sides of the slot to oncoming
traffic.
The present invention also provides a delineator for a Z-post, including a pair
of te faces and a post attachment arrangement including at least one transverse
member and one depending , the delineator including at least one snap-fit projections
on one of the opposed sides, and adapted to engage with a slot of a cap as described in the
preceding paragraphs. It can include a pair of snap-fit projections, one on each opposed side
of the delineator.
The present invention further provides a method of ucting a roadway,
guard rail or safety barrier having a post and beam construction, including the steps of: g
a carriage onto the post, the carriage being supported by one or more projections on the post
which are located at a desired height for the beam; inserting the post into the ground at a
desired on to an appropriate depth; securing the beam onto the carriage.
The present invention also es a method of constructing a roadway,
guard rail or safety barrier having a post and beam construction, including the steps of:
inserting the post into the ground at a desired position to an appropriate depth; securing the
beam onto a carriage; placing the beam and ge onto the post, the carriage being
supported by one or more projections on the post which are located at a desired height for the
beam.
The present invention further provides a method of constructing a roadway,
guard rail or safety barrier having a post and beam construction, ing the steps of:
securing the beam onto a carriage; positing the beam and carriage with respect to the ground
at a desired location, and so that the beam is located at a height appropriate for acting as a
barrier; driving the post past the carriage and into the ground, until a projection on the post
passes the carriage such that the carriage is ted by the tion, and until the post is
driven into the ground at an appropriate depth.
The present invention also provides a method of ucting a roadway,
guard rail or safety barrier having a post and beam construction, including the steps of:
inserting the post into the ground at a desired position to an appropriate depth; placing a
703349NZDIV2
carriage onto the post, the carriage being supported by one or more projections on the post
which are located at a desired height for the beam; securing the beam onto the carriage.
The above described s of constructing a roadway can further include
the steps of removing the carriage and the beam from the post, and replacing the carriage and
the beam on the post at a location higher than the original location for the carriage.
Brief description of the drawings
An embodiment or embodiments of the present invention will now be
bed, by way of example only, with reference to the anying drawings, in which:
Figure 1A shows a top view of a post cap;
Figure 1B shows an end view A of the cap of Figure 1A;
Figure 1C shows a side view of the cap of Figure 1A;
Figure 1D shows an end view B of the cap of Figure 1A;
Figure 1E shows an ide view of the cap of Figure 1A;
Figure 2 shows a first perspective view of the cap of Figure 1A;
Figure 3 shows a second perspective view of the cap of Figure 1A;
Figure 4 shows a cap attached to a Z post;
Figure 5 is a second view of the cap attached to a post;
Figure 6A shows a top, view of another delineator attachment ement;
Figure 6B shows a side view of the arrangement of Figure 6A;
Figure 6C shows an edge view of the arrangement of Figure 6A;
Figure 6D shows a bottom view of the arrangement of Figure 6A;
Figure 7 illustrates the delineator arrangement of Figure 6 attached to a Z
post;
Figure 8A illustrates a top view of a further ator attachment
arrangement;
Figure 8B shows a side view of the arrangement of Figure 8A;
Figure 8 C shows an edge view of the arrangement of Figure 8A;
Figure 8D shows an underside view of the arrangement of Figure 8A;
Figure 9 is a perspective view of the delineator arrangement of Figure 8;
NZDIV2
Figure 10 is a second perspective view of the delineator arrangement of
Figure 8.
Figure 11 shows a first view of the delineator arrangement attached to a Z
post
Figure 12 shows a second view of the delineator arrangement attached to a
Z post.
Figure 13A illustrates a first end view of another delineator arrangement;
Figure 13B illustrates a side view of the delineator of Figure 13A;
Figure 13C illustrates an edge view of the delineator of Figure 13A;
Figure 13D rates a second side view of the delineator of Figure 13A;
Figure 13E illustrates a second end view of the delineator of Figure 13A;
Figure 14 illustrates a first perspective side view of the delineator of Figure
Figure 15 illustrates a second perspective side view of the delineator of
Figure 13;
Figure 16 Is a perspective side view of the delineator of Figure 14 applied to
a Z-post;
Figure 17 Is a perspective side view of the delineator of Figure 15 applied to
a Z-post;
Figure 18A illustrates a first end view of a further delineator arrangement;
Figure 18B illustrates a first side view of a delineator arrangement of Figure
18A;
Figure 18C rates an edge view of a delineator arrangement of Figure
18A;
Figure 18D illustrates a second side view of a ator arrangement of
Figure 18A;
Figure 18E illustrates a second end view of the delineator arrangement of
Figure 18A;
Figure 19 is a perspective side view of the delineator of Figure 18D;
Figure 20 is a perspective side view of the delineator of Figure 18B;
Figure 21 shows the delineator of Figure 19 applied to a Z-post;
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Figure 22 shows the ator of Figure 20 applied to a Z-post;
Figure 23 shows an exploded view of a post cap arrangement;
Figure 24 shows the assembled view of the arrangement of Figure 23;
Figure 25 shows a modified cap similar to that of Figure 23.
Figure 26 shows a modified version of the delineator having snap fit
projections;
Figure 27 shows the opposite side of the delineator of Figure 25;
Figure 28 is a partial cross-sectional illustration along line A-A of Figure 26;
Figure 29 shows a modification of the cap of Figure 25;
Figure 30 is an ed perspective view of a carriage and a Z-post;
Figure 31 is partial front view of a sheet material prior to forming the Z-post
of Figure 30;
Figure 32 is an ed perspective view of an assembly of a roadway,
guard rail, or safety barrier having a W-beam, carriage and the Z-post of Figure 30;
Figure 33 shows the assembled barrier of Figure 32;
Figure 34 is a plan view the post and carriage of the barrier of Figure 33;
Figure 35 is a plan view of the assembled components of Figure 34,
assembled with a bolt;
Figure 36 is a part plan view of a Z-post showing a carriage support means;
Figure 37 is a front elevation view of the carriage support means shown in
Figure 36;
Figure 38 is a side sectional view of the carriage support means shown in
Figure 36, showing ment with a carriage;
Figure 39 is a plan view of another carriage support means;
Figure 40 is a plan view of a further carriage support means;
Figure 41 is a plan view of r carriage support means;
Figure 42 is a front elevation view of the carriage of Figure 30;
Figure 43 is a rear elevation view of the ge of Figure 42;
Figure 44 is a plan view of the carriage of Figure 42;
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Figure 45 is a front perspective view of the carriage of Figure 42;
Figure 46 is a rear perspective view of the carriage of Figure 42;
Figure 47 is a section of the carriage of Figure 42 through line XLVII - XLVII
of Figure 43;
Figure 48 is a perspective view of r Z post;
Figure 49 is a side elevation view of another carriage;
Figure 50 is a plan view of the carriage in Figure 49;
Figure 51 is a front perspective view of the carriage in Figure 49;
Figure 52 is a side ion view of another ge;
Figure 53 is a plan view of the carriage in Figure 52;
Figure 54 is a front perspective view of the carriage in Figure 52;
Figure 55 is a rear ion view of the carriage in Figure 52.
Figure 56 is a plan view of r carriage;
Figure 57 is a plan view of a carriage support means;
Figure 58 is a schematic view of a blank for another post;
Figure 59 is an exploded perspective view of another barrier assembly;
Figure 60 is an elevation view of the barrier assembly in Figure 59;
Figure 61 is a side elevation view of an assembled barrier assembly with a
THRIEBEAM;
Figure 62 is a flow chart depicting a method for manufacturing a post;
Figure 63 is a flow chart depicting another method for manufacturing a post;
Figure 64 is a flow chart depicting a method of raising the beam after the
road has been retarred;
Figure 65 is a flow chart depicting a method for assembling the post,
carriage, and beam;
Figure 66 is a flow chart ing another method for assembling the post,
carriage, and beam;
Figure 67 is a flow chart depicting a further method for assembling the post,
carriage, and beam;
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Figure 68 is a flow chart depicting a further method for assembling the post,
carriage, and beam;
Figure 69 is a front perspective view of a carriage and a post having a
carriage support means that is a single projection;
Figure 70 is a plan view of the carriage and post in Figure 69 and of a bolt for
use with the carriage and post;
Figure 71 is a front perspective view of another carriage and post
combination;
Figure 72 is a plan view of the carriage and post in Figure 71 and of a bolt for
use with the ge and post;
Figure 73 is a front perspective view of another ge and post
combination;
Figure 74 is a plan view of the carriage and post in Figure 73 and of a bolt for
use with the carriage and post;
Figure 75 is a front perspective view of another carriage and post
combination;
Figure 76 is a plan view of the carriage and post in Figure 75 and of a shear
pin for use with the carriage and post;
Figure 77 is a front perspective view of another carriage and post
combination;
Figure 78 is a plan view of the carriage and post in Figure 77 and of a bolt for
use with the carriage and post;
Figure 79 is a side elevation view of an assembled r assembly with the
carriage and post combination of Figure 69;
Figure 80 is a side elevation view of an assembled barrier assembly with the
carriage and post combination of Figure 71;
Figure 81 is a side elevation view of an assembled r assembly with the
carriage and post ation of Figure 73;
Figure 82 is a side elevation view of an assembled barrier assembly with the
carriage and post ation of Figure 75;
Figure 83 is a perspective view of a dual slot carriage or bracket for use
instead of bracket of figure 59; and
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Figure 84 is a perspective view of the carriage or bracket of Figure 59,
inverted for use to t by a slot to the beam and a bolt hole to the post in Figure 59.
The ing convention used in the drawings is that the digits in front of
the full stop indicate the drawing number, and the digits after the full stop are the t
reference numbers. Where possible, the same element reference number is used in different
drawings to indicate corresponding elements.
It is understood that, unless indicated otherwise, the drawings are intended to
be illustrative rather than exact representations, and are not necessarily drawn to scale. The
orientation of the drawings is chosen to illustrate the features of the objects shown, and does
not necessarily represent the orientation of the objects in use.
Detailed description of the embodiment or embodiments
POST – engagement means, support means
Illustrated in Figures 30 to 48 are features of components and assemblies
which form a y, guard rail, or safety barrier. While the following description and
drawings illustrate a Z-post as described in ding application, (WO
2010/105307), which is incorporated in its ty by reference, it will be readily understood
the post shape is not limited to a Z-post except where the claims specifically identify a Z-post.
Figure 30 illustrates a carriage 30.070 and a Z-post 30.001 which are part of
a roadside barrier, guard rail or safety barrier arrangement. The carriage 30.070 is sized and
shaped, and adapted to slide or move longitudinally along the Z post . For more details
of this, reference is made to co-pending application (WO2010105307).
The Z-post can be constructed from a sheet material such as the one
ed in Figure 31. This can be done by, for example roll g. Figures 62 and 63 depict
two methods for roll forming the post. As shown in Figure 62, tions can be punched, or
laser cut in step 62A, and pressed out from the blank for the post until the desired deformation
has been achieved (step 62B). The blank can then be fed through one or more rolls to form the
post in step 62C. The rolls can keep clear of the projections if they are formed before rolling.
Alternatively as rated in Figure 63, the projections can be cut from a blank, or preformed
by slits or cuts made to the blank in step 63A, before it is rolled to form a post in step 63B. The
slits or cuts are located to correspond to the desired locations of the projections. The slit or cut
portions are then deformed, e.g. punched out, in step 63C after the blank has been fed through
the rolls and the post is roll into a Z post form.
The front or outer face 30.088 of the Z post 30.001 is provided with one or
more engagement means 30.090 located along a longitudinal axis of the outer surface of the
703349NZDIV2
post 30.001, as illustrated also in Figure 48. The engagement means 30.090 are sized and
shaped to restrict the movement of a bolt d in the ge 30.070 and thus the carriage
.070 along the Z post 30 in the event of a collision. The engagement means 30.090 are
provided toward the top of the post 30.001. As will be explained later the carriage 30.070 is
configured so that as the carriage 30.070 travels relative to the post , there is no or
minimal engagement between the carriage and the engagement means. It is the attachment
means that engages the engagement means and obstructs the travel of the carriage on the
post.
The engagement means 30.090 includes one or more projections which
extend outwardly from the front or outer face of the post 30.001. The projections can have
different configurations, as long as in use they engage the ment means to retard or
restrict the carriage movement as appropriate (as explained with reference to Figures 34 and
).
The width of the projections, as measured in the direction of the travel of the
carriage relative to the post, that is, in a direction parallel to a longitudinal axis of the post,
determines the force at which the engagement means will deform or fail and allow the carriage
to pass over the engagement means 32.090. Each engagement means provided on the same
post can have projections of the same width. Alternatively the plurality of engagement means
can have projections of gradually changing, e.g. increasing or decreasing widths, with
projections located nearer the top of the post being wider or narrower in width. If d the
widths can be such that two are the same while one is different, whether greater or lesser. For
example the ment means 48.090 as illustrated in Figure 48 can be of ent width as
measured in the longitudinal direction of the post 48.001. The width can be increasing with
height so that engagement means located closer to the top of the post 48.001 are wider; thus
ing a greater force to fracture or deform than a previously d engagement means,
in the direction of travel of carriage relative to the post.
The projections of the engagement means are connected or attached to the
post 32.001, but the connections will be broken in a ion of sufficient force. The projections
can have different shapes, as long as they hinder the travel of the carriage 30.070 as
described in later paragraphs. For instance, the projections can be have a crescent shape, a
cuneiform shape, a n shape, a boomerang shape, a part circular shape, a part elliptical
shape, a part square shape or a part rectangular shape.
The projections can be separate components attached onto the post by, e.g.
welding. atively they can be deformed parts from the post 30.001, such as tabs, or
outwardly pressed parts of the post (e.g. see Figures 36 to 41), so that the pressed parts are
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plastically deformed, without being tely separated from the post 30.001. They can be
formed from strips which are partially cut from the post and then stretched or deformed
outwardly. The strip is stretched or deformed beyond the material’s c th so that the
deformation is plastic and its stretched or deformed shape is retained after the deforming force
is no longer applied. The strips can be deformed within the tensile strength of the material
used for the post to prevent the strips from necking. The resulting projection, used to retard
the motion of the carriage, has two ends 30.089 which remain connected to the post 30.001,
and a central section 30.091 which extends outwardly from the front face 30.088 of the post.
The front or outer face 32.088 of the Z post 32.001 is r provided with at
least one carriage support means 30.092. The carriage is adapted to rest on the carriage
support means 30.092 (e.g. see Figure 32). The ge support means 3 2.092 can be a
through hole for ing a bolt or r that will sit proud of the outer face of the post, so as
to support the carriage, or it can have one or more projections such as the projections of the
engagement means. In the embodiment shown in Figure 30 the support means 30.092
includes a pair of projections which support the bottom of the carriage 30.070 on either side of
a central region of the carriage 30.070. In the embodiment shown in Figures 69 and 70, the
support means 69.092 includes a single projection. The single pr ojection is located on the Z
post so as to t a bolt 70.094 that secures the beam (not shown) to the carriage 70.070.
CARRIAGE – attachment receiving means; C cross section
The carriage 30.070 is adapted to pass over the one or more engagement
means 30.090 located lly on the front face 30.088. The carriage 30.070 has an
attachment or securement receiving means in the form of a threaded through bore , to
secure the beam on to the carriage 30.070. More specific configuration of the carri age will be
discussed later with reference to Figures 34, 35, and Figures 42 to 47. The attachment
ing means can receive a threaded bolt or machine screw.
The carriage 34.070 is substantially of a C cross section, having a middle
section 34.080 flanked by free ends 34.082, 34.084. The middle section 34.080 has an
attachment receiving means, in this case a centrally located threaded aperture 34.086 for
receiving a corresponding attachment means, such as a threaded bolt or machine screw. The
ge 34.070 fits over the front or outer face 34.088 of the post 34.001, the front face 34.088
facing the road way. One free end 34.082 fits over the trailing end 34.064 of the Z post, and
the opposite free end 34.084 fits over the front portion of the oblique segment 34.050 of the Z-
post (see Figures 34 and 35). The free ends 34.082, 34.084 are shaped and sized to guide the
carriage’s longitudinal travel on the post, and can be ently configured depending on the
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type of post that the carriage is adapted to be used with, as is bed in co-pending
application ().
The inner surface 34.071 of the carriage 34.070, which faces the post
, has a longitudinal recess 34.098 which allows the carriage 34.070 to travel over or
past the centrally located engagement means, but which does not allow the ge 34.070 to
pass over the carriage support means 34.092 because they are not centrally located. The
recess 34.098 can be a groove or l ed along the inner surface 34.071. The
carriage aperture 34.086 opens into the recess, groove, or channel.
Figures 42 to 47 depict the carriage. s include the axially or
longitudinally extending recess 44.098 and its base 47.099, and the threaded aperture 44.086.
As shown here the recess can include a half-height groove 44.098 (see also for example
46.098 and 47.098) which extends through imately half the height of the carriage
44.070. The carriage re 43.086 (see also e.g. 47.089) is located above the half-height
groove 47.098 and displaced toward the de with respect of the groove 47.098. There
aperture 47.098 opens into a clearance area above the half-height groove 47.098. The
clearance area 47.100 is part of the recess and is configured to avoid contact with the
engagement means. It will be understood that alternatively the clearance area can extends
through the full height of the carriage if the inside surface 34.071 extends h the full
height of the carriage. The groove is sized and shaped to avoid contact with the
aforementioned ment means 30.090 during longitudinal travel of the carriage with
respect to the post.
BOLT
As illustrated in Figure 32, the through bore 32.086 can receive a threaded
bolt 32.094 for securing the beam 32.096 to the carriage 32.070. Together, the post 32.001,
carriage 32.070, and beam 32.096 form a barrier. The beam 32.096 has a through hole
32.097 which in use aligns with carriage ed hole 32.086 and which is dimensioned to
receive the bolt 32.094, but not of a size which will allow the head of the bolt to pass. The
height of the beam 32.096 with respect to the post 32.001, and thus the ground, is determined
by the position of the carriage 32.070 on the post 32.001. The distal end of the shank of the
bolt protrudes through the carriage 32.070, so that when the carriage 32.070 is moved with
respect to the post 32.001 (e.g. during collision), the bolt can engage the engagement means
32.090. However the shank of the bolt preferably does not reach the front face 30.088 of the
post 30.011, so that the movement of the carriage 32.070 in relation to the post 32.001 is not,
at least initially, affected by any friction n the bolt 32.094 and the post 32.001.
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A grub screw can be used instead of a bolt. As shown in Figures 77 and 78,
the shank of the grub screw 78.094 can alternatively reach the front or outer face 78.088 of the
post 78.001, so that the movement of the carriage 78.070 with respect to the post 78.001 is
ed by the friction n the post 78.001 and the grub screw 78.094. It may be that in
this embodiment the post 77.001 does not have any other engagement means to retard the
movement of the carriage 77.070.
ASSEMBLY – carriage and Z post assembly
Figure 34 depicts plan views of the carriage 34.070 and the Z post 34.001
without a bolt, and Figure 35 with a bolt . Figures 34 and 35 are represented
schematically and not to scale. In particular the space between the carriage and the post is not
a true representation of the amount of clearance provided. In practice, it is expected that
approximately 1 to 4 millimetres will be the amount of clearance provided between the outer
surfaces of the post and the inner surface of the carriage, as is bed in co-pending
application .
The engagement between the carriage 34.070 and the post 34.001 can occur
in the region of carriage’s middle section 34.080, and the carriage free ends 34.082 and 34.084
which may contact the trailing end 34.064 and the oblique segment 34.050 of the post 34.001
tively. The clearance allows the carriage 34.070 to move relatively freely relative to the
post 34.001 during a collision. The ion of the clearance also makes it easier to control
the performance of the barrier, as it is not ely affected by friction between the carriage
34.070 and the post 34.001. Also, the free ends 34.082 and 34.084 are close enough together
so that the front or outer face 34.088 of the post 34.001 cannot fit between the free ends
34.082 and 34.084. This ensures the carriage 34.070 is retained on the post 34.001 for its
longitudinal movement along and ve to the post 34.001, and the movement is guided
thereby. The movement of the carriage 34.070 relative to the post enables the beam to stay at
approximately an appropriate height ve to the vehicle colliding t the beam, until the
carriage 34.070 breaks apart from the post .
The carriage’s threaded hole 34.086 opens toward the Z-post 34.001 into the
recess 34.098. The recess 30.098 is dimensioned so that it will not interfere with the
engagement means 34.090. The edge around the recess 30.098 abuts with the non-centrally
located carriage support means 34.092, so that the bottom of carriage 34.070 can rest on the
carriage support means . The post 34.001 can be provided with one or more carriage
support means, each defining a beam location.
Alternatively as illustrated in Figure 48, each carriage support means can be
a single projection provided along the post 34.001, so that threaded bolt 34.094 can rest on the
703349NZDIV2
single tion. Projections intended to retain the ge on the post 34.001 can be thinner
than projections intended to absorb the impact from a collision (i.e. tions of the
engagement , as they are required only to carry the weight of the carriage and the
beam.
ASSEMBLY – carriage, bolt, and post
Referring to Figure 35, the threaded bolt 35.094 is adapted to pass through
the threaded hole 35.086 and laterally through the recess 35.098. The bolt 35.094 passes
laterally in the sense that it passes through the recess in a direction that is lateral to the
longitudinal direction of the recess 35.098. The distal end 35.100 of the bolt 35.094 extends
past the outer most portion of the engagement means 35.090 so that the end of the bolt 35.094
will engage the engagement means 35.090 when the carriage 35.070 moves along the post
.001. The carriage 35.070 is therefore prevented from freely riding over the engagement
means 35.090, until a collision of sufficient force occurs and the engagement means 35.090
are fractured or deformed. The head 35.102 of the bolt 35.094 can have an Allen key hole
.105, to tate tightening the W beam (not shown) onto the carriage 35.070. The beam
would be located n the head 35.102 and the front face of the carriage 35.070.
As illustrated in Figure 68, the carriage, bolt, and post can be assembled by
first driving the post into the ground (step 68A), placing the carriage at a desired location on the
post (e.g. a carriage stop means) in step 68B, and then attaching the beam onto the carriage in
step 68C by inserting an attachment screw through the beam and into the threaded h
bore of the carriage. atively as illustrated in Figure 65, the carriage can be placed onto
tions on the post in step 65A, before the post is driven into the ground in step 65B. As
described in this specification the projections can be those of a carriage stop means or a
ge engagement means, depending on the embodiment of the post used. The projections
are selected so that the beam will be positioned at an appropriate height for acting as a barrier.
The beam can then be attached to the carriage in step 65C. Alternatively as illustrated in
Figure 66, the beam can be pre-attached to the carriage by inserting the attachment screw
through the beam and into the threaded bore of the carriage in step 66B. The attached rail and
carriage can then be placed onto the appropriate carriage stop means on a post (step 66C)
that has already been driven into the ground (step 66A). Alternatively as illustrated in Figure
67, the carriage and beam are pre-attached by inserting the attachment screw through the
beam and into the threaded bore of the carriage in step 67A. The pre-attached carriage and
beam are then positioned with the beam on its desired on with respect to the ground in
step 67B. The post can then be positioned to be driven into the ground, passing through the
carriage in step 67C, until it s a sufficient depth so that the assembly is stable. The
carriage will in effect travel ly with respect to the post. In this instance the carriage stop
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means will be configured so that the carriage can travel upwardly with respect to the post, ride
past the on of the carriage stop means, and then move into position once it passes the
carriage stop means, so that the carriage is supported by the ge stop means. For
example, the ge stop means depicted in Figure 38, which has a tab that extends
upwardly and outwardly, can be used. Alternatively, a bolt can be used as a ge stop
means, and is ed when needed.
OPERATION OF BARRIER ASSEMBLY
When a collision occurs and the beam is ed by a e, the force of
the impact can cause the carriage 35.070 to move along the post 35.001 depending upon the
magnitude of the collision force. The carriage 35.070 and thus the beam will however be
stopped, possibly temporarily, or retarded in its relative nt, by the ment means
.090 engaging the bolt 35.094.
In the event that a forceful enough impact causes the carriage 35.070 to
break through the first engagement means 35.090, the now diminished force will move the
carriage 35.070 toward the next engagement means 35.090. T he movement of the carriage
.070 will then be retarded or stopped by the next engagement means 35.090, until the next
engagement means 35.090 is also overcome by the collision force. The more ment
means that are provided, the more force the barrier can absorb. Also, the more force it takes
to deform, fracture, or shear the dams or carriage engagement means 35.090 from the Z post
.001, the more force the barrier can absorb, not just by the force of breakage, but also the
beam remaining in contact with the post for longer, with the post thus absorbing greater force.
The amount of force that the barrier can absorb will be affected by the number of engagement
means provided, and also the shearing force required to overcome each engagement means.
Although the post is ed as a Z post, it is to be understood that other
types of posts can be used, as long as the engagement means can be provided on these
posts. For instance, Charlie posts, H posts, I posts, C posts, U posts, rectangular posts, O
posts can be used.
There are different types of failure mechanisms by which the engagement
means can fracture. The attachment means, e.g. a bolt, can cause the engage ment means
.090 to be sheared off the post 30.001. Alternatively the attachment means can cause the
engagement means to deform, for example to start necking, as it exerts a deformation force on
the projection. The attachment means can then ride through the engagement means when
sufficient ation or fracturing has occurred. The engagement means and interaction with
a bolt, assist provide consistent and reproducible failure, allowing one to anticipate
NZDIV2
approximately the amount of force required for the ge to overcome the engagement
means in a collision.
VARIATIONS
1. carriage support/stop means variations
s 36 to 41 depict various embodiments of carriage support means in
the form of tabs that are cut and bent out from the post. For instance they can be cantilevered
tabs that are formed by shearing and bending a part of the post. Referring to figures 36 to 38,
the carriage t means 36.092 can be a tab that is cut from the post 36.001 and then
pushed out or punched out, but which remains hingedly connected to the post 36.001. The
carriage 36.070 in use rests atop the tab 36.092 so that it does not slide down the post 36.001.
The tab 37.092 is cut and then ed from the post 37.001, except at its lower edge 37.093.
The tab 37.092 is connected to the post along a lly horizontal attachment edge 37.093
and extends outwardly from the edge 37.093. The tab 36.093 extends or is of a width which is
wider than the recess 36.098. As shown in Figure 38 the carriage 38.070 sits atop the tab
38.092, so that the tab 38.092 retains the carriage 38.070 but does not interfere with the bolt
(not shown) for attaching the barrier to the carriage 38.070.
The carriage stop tab can be differently ated than as described above,
as is shown in Figure 39. The retaining tab 39.092 is attached to the post 39.001 along a
longitudinal or generally vertical line of attachment 39.094. The tab 39.092 extends toward the
carriage 39.070 so that in use it supports the carriage 39.070 at a location below the recess
39.098. As shown in Figure 40, the tab 40.092 alternatively extends from the longitudinal
attachment edge 40.093 so that it supports the carriage 40.070 at a location below the rim of
the recess 40.098.
Illustrated in Figure 41, a different carriage stop means 41.092 includes a
pair of retaining tabs 41.192 and 41.292. Each tab is attached to the post 41.001 along a
corresponding longitudinal or lly vertical line of attachment 41.193 (and ). The
tabs 41.192 and 41.292 extend from their corresponding ment edges 41.193 and 41.293
so that they support the carriage 41.070 at locations below the floor of the recess 41.098. As
shown Figure 57, tabs 57.192 and 57.292 extend out they are about 10 mm proud of the front
face 57.088 of the post 57.001. It will be understood that this dimension is an example only. It
will also be understood that the retaining tabs need not have a specific configuration, as long
as the tab (or multiple tabs which work together) s away from the outer surface of the
post in such a way that it supports the carriage. For example, in the embodiment shown in
Figures 71 and 72, the support means includes a pair of tabs , 71.292 as described
above, and the engagement means 71.090 each include a single projection for engaging the
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bolt 72.094 as described previously. The carriage 71.070 is adapted to engag e engagement
means 71.090 which are single projections from the front or outer surface 71.088 of the post
71.001. The carriage 72.070 also has a recess 72.096 for accommodating the ment
means 72.090.
The preferred method of making the post and the carriage supports and
resistance means or tabs, is to first form the post profile, either by pressing or roll forming, and
then to punch the resistance tabs, to their d configuration. Other methods of manufacture
will be described below.
2. Carriage engagement means variation
Figures 73 and 74 depict a variation of the ment means. The carriage
engagement means 73.090 es one or more triangular friction tabs 73.190 and 73.290
located on the front or outer face 73.088 of the Z post 73.001. In the ment shown in
Figures 73 and 74, two friction tabs 73.190 and 73.290 which are angled away from each other
are provided.
The friction tabs 73.190 and 73.290 can each have an imate triangular
shape, and can be attached to the outer face 73.088 of the post 73.001 along ment
edges 73.191 and 73.291 that are each generally parallel to, or along the longitudinal centre
line of the front or outer face 73.088. The remaining edges of the tabs are detached from the
outer face 73.088. The apexes 73.195 and 73.295 of the tabs located opposite the attachment
edges 73.191 and 73.291 point away from the longitudinal centre line of the front or outer face
73.088. As shown in Figure 74, in use the tabs 74.190 and 74.290 extend from approximately
the longitudinal centre line of the front or outer face , toward the carriage 74.070, so that
they engage the inner surface 74.180 of the carriage 74.070.
Because of the tabs’ triangular shape, the force required for the carriage
74.070 to deform each tab 73.190 or 73.290 increases as the ge 74.070 is made to travel
from the lowest point of the tab 73.190 or 73.290 to the detached apex 73.195 or 73.295 of the
tab. This is because n the lowest points of its attachment edge and detached apex the
tab is increasing in width, as measured in a ion that is transverse to the longitudinal
direction of the post. After the carriage 74.090 overcomes the detached apex 73.195 or
73.295, the tab 73.190 or 73.290 releases the carriage 74.090, because the tab is decreasing
in width between its detached apex and the highest point of its attachment edge. In this sense
the carriage 74.070 is adapted to “click” past the friction tabs 73.190 and 73.290.
The two friction tabs 73.190 and 73.290 can be vertically displaced from each
other. This arrangement provides different locations where the carriage 73.070 must
703349NZDIV2
overcome and click past the tabs. Also t his arrangement prolongs the on of contact
between the engagement means 73.090 and the carriage 73.070 in the event of a collision.
For the carriage to overcome the engagement means 73.090, it needs to
have been subjected to sufficient force such that its inner surface 74.180 can overcome the
engagement with the apexes 74.195 and 74.295 of the tabs, and that the bolt 74.094 can
overcome the bases of the tabs, near the attachment edges 74.191 and 74.291.
The prolonged contact between the engagement means and the carriage can
be useful for heavy duty barrier arrangements for, e.g. areas with higher traffic from heavier
vehicles such as trucks.
3. post variations
In an ative embodiment of the post as shown in Figure 48 (not to scale),
the support means 48.092 includes a single projection and is formed in the same way as the
engagement means. The bolt which attaches the beam to the carriage rests on the support
means 48.092, and the support means thus supports the carriage.
ary dimensions for a Z post with at least two engagement means and
one t means are also provided in Figure 48 (not to . The dimensions are provided
in millimetres. The engagement means 48.090 are each approximately 30 mm in length as
measured in a direction transverse to the direction of the ge’s travel, and each protrude
about 6 mm proud of the front face of the post. In the example shown, the upper and lower
engagement means 48.090 are approximately 7 to 7.5 mm in width, and the bottom carriage
stop means 48.092 is approximately 4 mm in width, as measured in the direction of the
carriage’s travel. A 7 mm to 7.5 mm wide ment means will typically fail when ed
by a collision of sufficient force, and will have the effect of delaying the separation of the
carriage from the post, allowing the post to absorb as much impact as is possible by
maintaining contact for as long as possible during the collision.
The bottom t means 48.092 supports the carriage (not shown), which
will be located between the bottom support means 48.092 and the lower engagement means
48.090, which es an initial restriction to the travel of the carriage relative to the post
48.001. The lower edge of the bottom support means 48.092 is provided at about 154 mm
from the top of the post, and the lower edge of the lower engagement means 48.090 is
provided at about 70 to 135 mm from the top of the post. In the case that the lower
engagement means 48.090 is provided at 135 mm from the top, and the beam and carriage
are attached together by a 13 mm bolt. Thus the carriage will travel only about 6mm before it
engages the lower engagement means . The lower edge of the upper engagement
means 48.090 is provided at about 20 to 25 mm from the top of the post. The carriage will
703349NZDIV2
detach from the post if there is enough load to cause the upper engagement means 48.090 to
fracture or deform. To accommodate an engagement means of the above given dimension,
the carriage will have a recess 43.098 that is at least 35mm wide (transverse to the post) and a
depth of at least 6 mm, the depth being measured in the direction that is perpendicular to the
front face of the post and to the carriage. The recess 43.098 also needs to be shaped to avoid
contact with the engagement means
If the Z-post is on a median strip, or between two carriageways or roadways,
and is to have a carriage d on each opposed side, each to mount a beam thereto, then
the formations which form the engagement means and support means, can be on both outer
faces of the post.
Figure 58 s the schematic view (not to scale) of a blank for forming
another Z post. ary dimensions are provided in millimetres. Starting from the right
hand side of the blank as shown in Figure 58, the blank includes a first edge 58.200 and a first
fold line 58.201 which define the front trailing end 58.064. T he front face 56.088 extends
between the first fold line 58.201 and the second fold line 58.202. From the second fold line
58.202, the oblique portion 58.050 extends until it meets the third fold line 58.203. The rear
face 58.051 is defined between the third fold line 58.203 and the fourth fold line 58.204. The
rear trailing end 58.063 of the Z post is defined between the fourth fold line 58.204 and the
second edge 58.205 of the blank. The first fold line 58.201 is approximately 18.23 mm from
the first edge 58.200. The second fold line 58.202 is about 73.69 mm from the first edge
58.200. A centre line 58.206 through the front face 58.088 is therefore about 45.96 mm from
the first edge 54.200. The third fold line is about 74.29 mm from the second edge 58.205, and
the fourth fold line is about 18.43 mm from the second edge 58.205.
Slits are cut into the blank section corresponding to the front face 58.088, for
forming the tions of two engagement means 58.090 and a carriage stop means 58.092.
The engagement means 58.090 are each approximately 30 mm in width as ed in a
direction transverse to the direction of the carriage’s travel. Eachengagement means will be
punched from the post until it des about 6 mm proud of the front face of the post. In the
example shown, the upper and lower engagement means 58.090 are approximately 7.5 mm
and 4mm in width, respectively. The blank has slits for forming a ge stop means 58.092
that includes two stop tabs 58.192, 58.292 spaced apart by about 12 mm. Each stop tab is
about 12 mm in width, and will be punched from the post until it extends proud of the post by
about 10 mm. The ge stop means 58.092 and the lower engagement means 58.090 are
separated by approximately 108 mm. The upper and lower engagement means are spaced
apart by about 48 mm.
NZDIV2
Figures 75 and 76 depict another variation for the Z-post. 75.001. The front
or outer face 75.088 of the post 75.001 can further have an re 75.300. As shown in
Figure 76 the aperture 76.300 receives a shear pin 76.302. The shear pin 76.302 has a head
76.304 which engages the inner surface 76.180 of the carriage 76.070. The shear pin 76.302
can further have a neck portion 76.306 that is thinner and hence is a weakened section. The
neck n 76.306 also engages the inner surface 76.180 of the carriage 76.070. In the
course of a collision, the impact force drives the carriage 76.070 upwardly, and the carriage
76.070 in turn can cause the shear pin 76.302 to fail at the neck 76.306 if there is sufficient
force.
While the above descriptions are directed to Z-posts, other profile or post
cross ns can be used, ing I-shape, H-shape, C-shape posts, or O-post.
4. carriage variations
Figures 49 to 51 illustrate another carriage. Carriage 49.070 is similar to the
carriage (e.g. 42.070), but is r modified to allow for multiple attachment positions for the
beam. The middle section 49.080 of the carriage 49.070 has an extended flange 49.081 which
extends away from the main body 49.181 of the middle section 49.080, and is provided with
multiple threaded through bores 49.086 for the ment of the beam (not shown). Each
through bore 49.086 defines one attachment positions for the beam.
Figure 64 illustrates a method of repositioning the beam after the road has
been resurfaced. Roads can be surfaced from time to time. Each time the road is retarred or
resurfaced (step 64A), the top surface of the road s slightly raised with respect to a
roadway barrier that is y installed beside the road. By means of the carriage 49.070 the
beam can thus be raised when it becomes ble to do so, while the location of the carriage
on the post does not change, for example when the road has been resurfaced enough that the
beam would otherwise no longer be located at an appropriate height for acting as a barrier for
vehicles. This is done by firstly removing the attachment means, e.g. a screw, which secures
the beam at a position corresponding to a lower threaded bore, in step 64B. The beam is then
d from the carriage in step 64C and repositioned so that its bolt g aligns with a
higher ed bore on the carriage, in step 64D. The screw is then reinserted to secure the
beam onto the carriage in step 64E. If the road is retarred again in step 64F, steps 64B to 64E
are repeated so that the beam can again be repositioned. It will not be necessary to remove
the post and the beam and then reinstall the barrier assembly to locate the beam at the right
position. Typically the asphalt overlay(s) or resurfacing may require that the beam be raised by
up to 200 mm. The provision of multiple threaded bores 48.086 allows the height of the beam
to be raised in stages.
703349NZDIV2
Figures 52 to 55 rate a further carriage. Carriage 53.070 includes a
middle section 53.080 flanked by two free ends 53.082, 53.084. The inner surface 53.180 of
the carriage 53.070, facing away from the roadway and toward the post (not , has one
or more bearing pads 53.280 that are proud of the inner e 53.180 of the middle section.
One of the free ends is a hooked free end 53.082 that terminates in a hook . The hook
53.183 turns toward the inner surface 53.180 of the carriage 53.070 but does not reach the
depth of the bearing pads 52.280, the depth being measured in a direction that is orthogonal to
the inner surface 53.180 of the carriage 53.070 so as to accommodate and receive in the gap,
the thickness of the post. T he front section of the Z post 53.001 can fit between the hook
53.183 and the bearing pads 53.280, and the trailing end 53.064 of the post 53.001 is located
in the nook area formed by the hooked free end 53.082. The hook 53.183 and the bearing
pads 53.280 guide the movement of the carriage 53.070 on the post 53.001.
The middle section 52.080 itself has a threaded through bore 52.086 for the
attachment of the beam as usly described. The threaded through bore 52.086 is located
on a flange 52.081 which extends away from the main body 52.181, with the threaded through
bore 52.086 being located away from the height at which the bearing pads 52.280 are located,
so that the attachment bolt (not shown) will not interfere with the bearing pads . In this
embodiment the bearing pads can engage the engagement means but the engagement means
will need to be formed in situ on site, or the carriage 53.070 assembled to the post from
underneath the post, before the post is inserted into the ground. Another method would be to
form the engagement means and/or the carriage stop means after the carriage has been
mounted on the post. The carriage 53.070 can also be used with a Z post which has no
engagement means if desired.
Figure 56 illustrates a carriage 56.070 similar to carriage 53.070 which has a
hooked free end 56.082 and one or more bearing pads 56.280. However the carriage 56.070
also has a recess 56.098 for accommodating the engagement means (not shown) as
described above. In this case the ment through hole can be ed h the middle
section 56.080 to open into the base of the recess 56.098 as illustrated in Figure 35, or it can
be provided through a part of the middle n 56.081 that extends away from the level of the
free ends as shown in Figures 49 to 52.
Figures 59 and 60 illustrate an alternative means of attaching the beam to
the post. The ge 59.070 is a bracket which includes a post attachment portion 59.110
which in use lies flush against the front face 59.088 of the post 59.001. The post attachment
n 59.110 is adjacent to an intermediate portion 59.112 which extends away from the post
ment portion 59.110 at an angle. The intermediate portion 59.112 connects the post
attachment portion 59.110 to a beam attachment portion 59.114.
703349NZDIV2
The post attachment portion 59.110 has an elongated g 59.116, which
is oned adjacent to a post opening 59.118 d on the front face 59.088 of the post
59.001. The elongated opening 59.116 and also the post opening 59.118 receive a bolt 59.120
which attaches the bracket 59.070 to the post 59.001. The beam attachment portion 59.114
also has an opening 59.122, which in use aligns with the opening 59.097 on the beam. The
openings on the beam attachment and the beam receive a bolt 59.094 for attaching the beam
onto the beam attachment portion 59.114.
In the event of an impact the elongated opening 59.116 allows the upward
travel of the bracket, and hence the beam 59.096.
Illustrated in Figure 83 is a carriage 83.070, which is similar to that of
carriage 59.070, except that an upper elongated slot 83.1161 is provided to ly attach the
beam 59.096 to, while the carriage 83.070 is ed by its elongated slot 83.116 to the post
59.001. By providing two slots and g the bracket 83.070 so that the bolt is located at the
top of slot 83.116, while the bolt holding the beam is located at the bottom of the slot 83.1161,
means that the amount of movement available between the post and the beam is equal to the
combined length of both slots 83.116 and 83.1161.
Illustrated in Figure 84 is the ge 59.070 ed, so that the single bolt
hole is used to secure the ge t the post, while the slot is used to attach the beam to the
carriage, thus allowing the beam to translate, in the event of a collision, relative to the carriage.
The above embodiments of the barrier assembly have been shown to include
a W beam. However other types of beams can be used. For instance, a THRIEBEAM
(registered trade mark) 61.096 can be used, as shown in Figure 61.
Figures 61 and 79 to 82 depict, schematically, the vertical dimensions of the
post with respect to the ground. As shown in Figure 61, the post 61.001, which can be used
with a THRIEBEAM can have an above ground part that is approximately 920 mm, and an
underground part that is imately 1080 mm. The top of the beam 61.096 can extend
slightly beyond the uppermost part of the post, so that it sits at about 930 mm from the ground.
As shown in Figure 79, the post 79.001 can have an above ground portion
that is approximately 750 mm, and an underground part that is approximately 1050 mm. The
top of the beam 79.096 can be located slightly below the top of the post, at approximately 730
mm from the ground.
As shown in Figures 80 to 82, the posts 80.001 and 81.001 can have an
above ground portion that is approximately 720 mm, and an underground part that is
approximately 1080 mm. The top of the beam 79.096 can be located slightly above the top of
703349NZDIV2
the post, at approximately 730 mm from the . The post depicted in Figure 80 can have
engagement means which are single projections as explained above with reference to for
e Figure 71. The post depicted in Figure 81 can have engagement means which are
on tabs as described above with reference to Figure 73. The post depicted in Figure 82
can have one or more shear pins as described with reference to Figure 75. The post depicted
in Figure 82 can also be used for frictional engagement with the bolt of the carriage, as
described above with reference to Figure 77.
The depth to which the posts are inserted into the ground is a on of their
cross section shape, dimensions and the gauge of metal from which they are made. Once a
vehicle collides with a post, that post will bend and deform to a depth of the post until such a
depth where the earth will resist the bending forces. However, the depth need only be deep
enough so that the lower part of the post will not bend. To have the post extend too far beyond
this depth is to waste post material. For the post of figure 79 the depth is 1050mm. For the post
of Figures 80 to 82, the depth is approximately 1080mm. For other size posts other depths will
be riate.
Figures 1A to 1D illustrate various views of a cap for a Z post. The cap 1.002
includes a cover portion 1.008 which has a bevelled edge 1.010. The cover is in the form of a
ed" I with broad ends 1.004 (end A), 1.006 (end B) and a narrower central portion.
Underside projections 1.012, 1.014 are shown in doted outline in Figure 1A.
Figure 1B is a top end view of the cap showing the downwardly extending
skirt 1.012 and attachment tab 1.016 with fastening hole 1.018.
Figure 1C is a side view of the cap which shows both skirts 1.012 and 1.014,
the tab 1.016 being attached to skirt 1.106.
Figure 1D shows the lower end view of the cap.
Figure 1E shows the underside of the cap with the skirts 1.012 and 1.014
shown conforming to portions of the cross section of a Z post 1.001 shown in dashed line to
indicate it is not part of the cap. The two skirts 1.012 and 1.014 are hook-shaped, with oblique
stems which overlap to form a channel 1.020 therebetween, the channel 1.020 is adapted to
receive at least a portion of the oblique segment of the Z post.
Figures 2 & 3 are perspective rations of the cap of Figure 1 showing the
attachment tab 2.016, 3.016 depending from below the cover 2.002, 3.002. The tab is
attached to skirt 2.012 (see Figure 1C).
Figures 4 & 5 show opposite views of the cap 4.002, 5.002 attached to a Z
post 4.001, 5.001. The attachment tab 4.016 extends down adjacent to, and parallel with, the
703349NZDIV2
oblique portion 5.050 of the Z post. The oblique portion 5.050 of the Z post has a hole adapted
to receive the bolt of nut and bolt attachment 4.022, 5.022, the post attachment hole being
located so that the tab attachment hole 2.018 is d with the post hole while the underside
of the cap is located on the top of the Z post. Thus, the cap is held stable because of the
contact between the underside of the cap and the top of the post, while the fastening holds the
cap in place. The skirts 2.012, 2.014 also assist in locating the cap on the post end.
In the ly shown in Figures 4 & 5, the edges of the ends of the cap are
flush with the al sides of the top and tail of the Z-post. This permits other connections to
be slid on and off the post without interference from the cap.
Figures 6 and 7 illustrate a combined cap and delineator, wherein the
attachment is similar to that of the arrangement of Figures 1 to 5, with the on of a
delineator 6.030 to the top of the cap 6.002. The delineator has at least one reflective face
6.032. As shown in Figure 7, when the delineator and cap assembly is attached to a Z post
7.001 using the bolt fastening ement 7.022 to connect the tab 7.016 to the oblique
portion of the Z post, this arrangement provides a means for having the delineator aligned
ersely to the parallel ends of the Z post and skewed in relation to the oblique portion of
the Z post, so that the reflective faces of the ator face oncoming traffic.
Figures 8 to 12 illustrate another delineator attachment arrangement. This
arrangement is similar to that of Figures 6 & 7 with the cap replaced by a small end
engagement segment 8.024, 8.026 seen, for example, in the top end view Figure 8A. The
engagement segments 8.024, 8.026 are wedge-shaped with their apexes adjacent. The
attachment tab 8.016 is affixed to the edge of the wedges. The wedges ensure that the
attachment holes 8.08, 8.019 align with corresponding holes on the Z post 12.001. The wedges
8.024 and 8.026 can be of unequal size or of equal size. The unequal size can be used to
assist in ensuring the delineators are led with the correct orientation, so the t faces
are e to oncoming traffic.
Figure 8B shows the delineator 8.032 and ment tab 8.016. The plane
of the delineator 8.030 and the plane of the attachment tab 8.016 can be seen to be skewed
around a common axis in the remaining Figures 8A, 8C, and 8D, as well as in Figures 9 & 10.
As seen in the lower end view Figure 8D, the attachment tab 8.016 is off-set
from the symmetrical centre of the arrangement, to allow for the width of the oblique portion of
the Z post.
The attachment tab is provided with two attachment holes 8.018, 8.019.
Thus, as shown in Figure 11 & 12, two fastening bolts can be used to attach the delineator
arrangement to the Z post 12.001.
703349NZDIV2
Figures 13 to 17 illustrate a delineator attachment arrangement, wherein the
attachment tabs 13.034, 13.036, are shaped to m to an end portion of a Z post, and are
also dimensioned to be a sliding fit inside the end portions of a Z post. The tops of the
attachment tabs , 13.036 are closed by transverse segments 14.42, 15.40. However,
these transverse segments do not form engagement elements as they are of a size to fit within
the ends of the Z post. ed with the arrangement shown in Figure 12, it is seen that the
transverse segments fully occlude the inner space at the top of the Z-post, whereas, in Figure
12, there is a gap between the end of the transverse segment and the tail of the Z-post crosssection.
As shown in Figure 13E, the attachment tabs 13.034, 13.036 are spaced to
leave a passage 13.038, 14.038, 15.038 through which the oblique segment of a Z post crosssection
can pass, while the stems of the attachment tabs are adapted to lie substantially
parallel to, and on opposite sides of the oblique segment of the Z post. The stems of the
attachment tabs do not overlap to facilitate the attachment bolts to be inserted and fastened as
shown in Figures 21 & 22. The shape of the attachment tabs assists in providing on of the
delineator and the attachment holes can be located so that they align with the corresponding
holes in the Z post when the base of the delineator rests on the end of the post at the top of the
passage 15.038.
Figures 18 to 22 rate another delineator attachment arrangement, two
parallel attachment tabs 18.016, 18.017 are provided to form the attachment channel 18.044,
19.044. The attachment tabs can include aligned attachment holes so a bolt can be inserted
through both tabs and the Z post.
In this arrangement, the l 19.044 can be symmetrically arranged. As
seen in s 19 & 20 the tab 19.017 is attached to the outer edge of wedge 19.042 while the
tab 19.016 is offset sufficiently to receive the oblique portion of the Z post, while the tab 20.016
is attached to the edge of the wedge 20.040, and the other tab (not shown is offset from the
edge of the wedge 20.040 to form the Z post channel.
Figures 21 & 22 show the ator of Figures 18 to 20 attached to a Z-post.
The intersecting planes of the ator 21.032 and the ng bracket plates 21.017,
22.017 are adapted to permit the delineator to align with the Z-post major direction, which, in
use, results in the reflective faces of the delineator facing oncoming traffic.
Figures 23 & 24 illustrate a Z-post end cap 23.052 having a downwardly
extending external skirt 23.060 d to fit over the edges of the cross-section of a Z-post.
The end cap has pair of end sections , 23.056 which conform to the ends of a Z-post
and a waisted middle section 23.058 which is not in ment with the Z-post. The skirt is a
703349NZDIV2
close fit over the ends of the Z-post and follows the trailing ends 23.062, 23.064 of the Z-post
for at least part of their length. This provides a cover for the metal edges of the end of the Z-
post.
If desired, the end cap of s 23 & 24 can have ment
arrangements similar to those of Figures 1 to 5.
Figure 25 illustrates an end cap similar to that of Figures 23 & 24, with a slot
.066. Slot 25.006 is adapted to fit over a delineator such as that shown in Figures 21 & 22.
Thus, the metal edges of the Z-post can be d while a delineator is still e to
ng traffic.
Figure 26 & 27 illustrate a further delineator adapted to cooperate with the
modified cap of Figure 25. The delineator of Figures 26 & 27 has a pair of it projections
26.070, 27.072 adapted to engage with the slot 25.066.
The snap fit tions can have a substantially triangular cross-section so
they can be press fitted through the slot 25.066. The bases of the snap fit projections are
spaced from the erse portions of the delineator to permit the thickness of the cap top
.052 to be accommodated therebetween, but the opposite ends of the bases of the triangles
are separated by a greater width then the width of the slot, so they will resist separation of the
delineator and the cap once the delineator has been inserted through the slot 25.055 and the
snap-fit tions press fitted through the slot to engage with the top surface of the cap
.052.
Alternatively, as shown in the partial cross-section view of Figure 28, the slot
28.066 can be wider than the bases of the delineator snap-fit projections, and additional snapfit
projections 28.074, 28.076 can be provided inside the slot 28.066.
As shown in Figure 29, the skirt 29.060 extends only part way around the
periphery of the cap, and is truncated as shown at 29.067.
The delineators can have single sided or double sided reflective surfaces.
The reflectors can be tetrahedral plastic reflectors, luminescent paint or other
suitable optical devices.
The delineators and caps can be made of cs, metal or other suitable
material. They can be formed of a single piece of material by moulding, metal forming or other
suitable manufacturing process.
In this specification, reference to a document, disclosure, or other publication
or use is not an admission that the document, disclosure, publication or use forms part of the
703349NZDIV2
common general knowledge of the skilled worker in the field of this invention at the priority date
of this specification, unless otherwise stated.
In this specification, terms indicating orientation or direction, such as “top”,
“bottom”, “up”, “down”, “vertical”, “horizontal”, “left”, “right” “upright”, “transverse” etc. are not
intended to be te terms unless the context requires or indicates otherwise. These terms
will normally refer to orientations shown in the drawings.
Where ever it is used, the word “comprising” is to be understood in its “open”
sense, that is, in the sense of “including”, and thus not limited to its “closed” sense, that is the
sense of “consisting only of”. A corresponding meaning is to be attributed to the corresponding
words ise”, “comprised” and “comprises” where they appear.
It will be understood that the invention disclosed and defined herein s
to all ative combinations of two or more of the individual features mentioned or evident
from the text. All of these different combinations constitute various alternative aspects of the
invention.
While particular embodiments of this invention have been described, it will be
t to those d in the art that the present invention may be embodied in other specific
forms without departing from the essential characteristics thereof. The present embodiments
and examples are therefore to be considered in all respects as illustrative and not restrictive,
and all modifications which would be s to those skilled in the art are therefore intended
to be embraced therein.
703349NZDIV2
Claims (4)
1. A carriage for use with a roadway, guard rail or safety r system which has a beam and post construction, the carriage being adapted to support the beam and mount the beam to the post, the carriage having an inner face which in use faces an outer face of the post, the carriage including a securement ing means for ng the beam to the carriage, wherein the carriage is sized and shaped so that in use, during an impact: the carriage travels longitudinally relative to the post and does not engage or will ze ment with formations on the post; the securement receiving means aligns a ment means located therein with one or more engagement means on the post and wherein the securement means engaging with the one or more engagement means during said longitudinal travel provides resistance to movement of the carriage with respect to the post; wherein the inner face includes a recess, groove or channel adapted to in use avoid contacting formations on the post which hinder sliding movement of the carriage along the post; wherein the , groove or channel has a longitudinal axis generally parallel to a longitudinal axis of the post.
2. A carriage as claimed in claim 1, wherein the recess, groove or channel is one of the following: extends through a full height of the carriage, as measured in the longitudinal direction of a sliding nt of the carriage; extends through a portion of the height of the carriage, as measured in the longitudinal direction of a sliding movement of the carriage.
3. A carriage as claimed in claim 1 or claim 2, wherein the securement receiving means includes one or more of the following: one or more threaded holes, and in use the threaded hole receives a bolt for securing the beam to the carriage; one or more threaded holes extending from an outer face of the carriage and opens into the recess; one or more threaded holes provided through a flange which extends from a main body of the carriage.
4. A ge as d in any one of claims 1 to 3, wherein the ge includes one of the following: NZDIV2 a middle section flanked on each side by a free end, wherein the attachment means is provided in the middle n; a middle section flanked on each side by a free end, wherein the attachment means is provided in the middle section, wherein the free ends are shaped and sized to in use guide a sliding movement of the carriage along the post; a middle section flanked on each side by a free end, wherein the attachment means is provided in the middle section, wherein one of the free ends ates in a hook or bearer portion which extends toward an inner surface of the middle section; a middle section flanked on each side by a free end, wherein the attachment means is provided in the middle section, wherein the inner surface carries one or more bearing pads, wherein in use a front face of the post is d to fit between the hook and the at least one bearing pad. WO 62723 ‘HG1E HGUREZ HGURE3 WO 62723
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2011902086A AU2011902086A0 (en) | 2011-05-30 | Improved Barrier Construction | |
AU2011902086 | 2011-05-30 | ||
NZ618096A NZ618096A (en) | 2011-05-30 | 2012-05-16 | Roadside barrier post attachment |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ719980A NZ719980A (en) | 2017-11-24 |
NZ719980B2 true NZ719980B2 (en) | 2018-02-27 |
Family
ID=
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