Abstract: A metallic fence system (10) provides an easily constructed, durable and adaptable system using metal posts (12), cross-pieces (14) between the posts and pickets (20, 30, 40, 50, 60, 70) attached to the cross-pieces (14). Each picket can be either fixed in width (20, 30, 40) or adjustable in width (50, 60, 70). The adjustable pickets can be varied in width to suit a particular need. The pickets can be standard pickets (20, 50) or can be pickets (30, 40, 60, 70) with offset portions. Pickets with offset portions can be placed adjacent to each other and the offset portions will overlap to provide a seamless fence.

Abstract: A privacy fence is provided which protects against intrusion of persons and animals as well as provides both a sight and sound barrier for an outdoor space such as a yard. The invention is comprised of vertical slats which interlock along each adjacent edge to create an effective barrier against the intrusion of unwanted noise or animals and at the same time eliminate any flaws or inconsistencies (such as knots) normally found in wooden fences which may be considered breaches of the integrity of the fence in its function as a privacy fence.

Abstract: This invention relates to both a concrete wall having a series of slanted deflection surfaces to spread the force of impacting vehicles, to buttress against earth forces, and to abate noises and to a method of constructing such a wall. The wall can be economically constructed from precast concrete elements which are adapted to be easily and rapidly stacked and joined in series to save on the cost of labor and materials. The wall is comprised of a series of panels which are stable and self-supporting when placed on a prepared foundation due to the Z-shape of the panels. Stable connection between the panels is provided by cast-in-place concrete, structural support columns. The legs of the Z-shaped panels form a stay-in-place form for the cast-in-place concrete when two Z-shaped panels are placed end to end. The cast-in-place concrete hardens and becomes integral structural support columns for the wall.

Abstract: Reinforced fence and building wall construction having upright tubular posts supporting lightweight foam wall panels extending from post to post. The vertical side edges of the panels are recessed to accommodate enough of the post circumferential extent to conceal the posts from exterior view. The panels have reinforcing members, preferably both upper and lower, extending horizontally between and to the panel vertical side edges. Each end of a reinforcing member is similarly recessed and has an adjacent lip, preferably formed from the end of the reinforcing member before its recessing, fitting closely about the post. During installation of such a wall the lips of the reinforcing members are fastened to their respective posts.

Abstract: An economical metal fence includes a lateral channel frame structure and corrugated panels that fit together without requiring fasteners. The lateral channel structures firmly engage the corrugated panels for support, while the lateral channel structures are held within vertical channels with very few fasteners. The lateral channel structures and associated corrugated panels do not bottom out laterally against the vertical channels. In this manner, the spacing between fence posts is not critical.

Abstract: A new and improved fence apparatus includes a plurality of hollow fence modules which are made of plastic material, which include ornamental exterior surfaces, and which slots at their edge portions. The slots are adapted to receive connector elements. A plurality of joint assemblies are adapted to be interconnected between two hollow fence modules placed edge to edge. The joint assemblies include connector elements adapted to be received in the slots of the two hollow fence modules for joining the fence modules together. The connector elements also fit into slots in the joint assemblies. Fence post assemblies are connected to the hollow fence modules for securing the hollow fence modules to a portion of the ground. The connector elements include first channels. The edge portions of the hollow fence modules include second channels which are capable of being placed in registration with the first channels.

Abstract: The fencing construction comprises a sleeve for covering an elongated beam. The sleeve has a pair of symmetric L-shaped parts provided with opposite male and female interlocking members longitudinally extending along free edges thereof for meshing in a locking engagement and holding the two parts together around the beam. It allows to either upgrade an existing fence or construct a new fence with low cost materials, such as wood, and transform at least parts thereof into a PVC-like fence for improving its service life.

Abstract: The fence, sound barrier, guardrail or the like includes line posts and top and bottom rails for supporting panels, wire mesh, boards, pickets or fence material. A fence post cap and bracket is provided on the line posts, secured to the line post, and extending beyond the post so that a downwardly depending flange on the outer edge of the cap engages an outer side wall of the rail. The fence post bracket which is also secured to the line post supports the top rail and prevents upward displacement of the rail on the line post.

Abstract: This invention relates to a combination precast concrete traffic barrier element and a precast C-shaped retaining wall, and a method of constructing a traffic barrier using the element on the vertical face of the retaining wall. The barrier element is a profiled reinforced block of concrete having a bottom surface with a longitudinally extending channel therein. The traffic barrier element is supported on the retaining wall. U-shaped anchoring bars project from an interior portion of the traffic barrier element and from the top surface of the retaining wall to form an oval keyway the length of the longitudinal channel. A locking bar arrangement is inserted through the keyway in a locking relationship with the U-shaped anchoring bars. Concrete is then injected throughout the longitudinal channel and allowed to harden, thus providing a sealed and locked joint.

Abstract: A plurality of corner posts positionable in a rectangular array, each corner post including a cylindrical tube positionable in a vertical orientation, each tube having a lower end and an upper end with a cap with a closed top positionable over the upper end and an extension member positioned over the lower end, the extension member being cylindrical in configuration with an internal shoulder adapted to receive thereagainst the lower end of the tube, the upper cap and lower extension member being formed with outwardly extending rings adapted to support corners of a screen, the lower end of the extension being formed with upwardly extending recesses for forming spring urged tangs therebetween; and a plurality of bases, each base adapted to receive the lower end of the extension member and positionable in a rectangular array beneath the posts and extension members, each base including a planar lower surface and a generally hemispherical upper surface with a vertical recess formed to extend downwardly from the up

Abstract: The present invention relates to a coupling (10) for connecting railing members (170, 171) to post (14, 15). The coupling (10) has a mounting portion having two parts (16, 117) pivotally movable relative to one another and capable of being locked against pivotal movement by a fastener (35, 113). Railing connection members (22, 25) are pivotally coupled to parts (16, 17) about axes (24, 26) extending transversely of the members and to an axis (20) about which the parts (16, 17) may pivot relative to one another.

Abstract: Flexible concrete structures resemble elongated rope-like articles having an outer textile casing in the form of a mono-tubular body with a continuous inner bore filled with dry cementitious material. The concrete ropes are naturally permeable to water for controlled chemical hydration for maximizing structural values and load bearing properties. The flexible concrete ropes may be employed in a wide range of applications in masonry and cement construction, such as caulk filler between foundations and roadways; as convenient mortar ropes in the reinforcement and stabilization of stone, rock, brick and block structures, like culvert bridges, drainage ditches, railroad roadbeds; temporary templates for A-frame structures, and as chocks for dry foundations.

Abstract: A fence assembly includes modules of two-foot width. The modules are easily assembled in four-module sections to achieve whatever cumulative length of fencing is desired. A module is joined to an adjacent module by insertion of a clip into vertical, T-shaped slots formed in an adjacent module. Sections are anchored in the ground by pipes having downwardly projecting stakes. These pipe and stake assemblies are located concealed within the first and fourth module of each section. Upper and lower horizontal reinforcing members are attached along the sections. Resilient expanding anchors are used to connect the pipes, extensions, and horizontal members, there being alignable bores formed therein which receive these anchors. In one embodiment, intended for use on flat terrain, the lower reinforcing member is extended through and concealed in longitudinal bores extending through each module.

Abstract: The present invention relates to a fence panel assembly and fence that do not permit a line of vision from one side of the panels between the panels to the other side of the panels while still providing ventilation channels between the panels for resistance to high wind.

Abstract: A modular wall construction includes a plurality of laterally spaced support posts with at least one panel provided to be arranged between the support posts. One or both of the post and frame of the panel include aligned mutually spaced slots in commonly facing walls thereof, each slot being at least partially defined by oppositely disposed first and second edge segments. Connecting elements are secured to and extend laterally from either the panel or post to overly the walls of the adjacent post or panel and the respective slots. The connecting elements include hook shaped portions which are received in the slots in engagement with the first edge segments, and have openings therein aligned with the slots adjacent to the second edge segments thereof. Fasteners extend through the openings into the slots to coact in engagement with the second edge segments to prevent disengagement of the hook portions from the first edge segments.

Abstract: The present invention relates to a modular security fence and, more particularly, to a plurality of interconnectable fence panels, each fabricated of weather proof recyclable materials. The fence panels can be produced in a variety of colors and sizes ranging from decorative landscaping fences to privacy fences. No staining or painting is required. These fence panels are formed to interconnect with one another and are secured together, preferably, through the use of threaded fasteners. Each successive panel conceals the unsightly fasteners which secure the preceding interconnected panel. The fence panels require virtually no maintenance. A number of panels can be interconnected prior to distribution, thus providing preassembled sections of fence. Optional panels may be formed to include utility boxes to accommodate electrical devices such as light fixtures, receptacles, and security devices. A fence of this type is durable, demanding little repair, and is not likely to fall prey to vandalism.

Abstract: Building walls comprising flanged supporting posts spaced on centers and uniform lightweight panels doubly slotted at their ends fitting between adjacent posts and engaging such flanges. The engaged post flanges are substantially concealed from view.

Abstract: A fence system including a frame and a plurality of foraminous panels attached to the frame. The foraminous panels are constructed with continuous integral strands which are connected by integral bonds extending between each of the strands. The integral strands form a zig-zag pattern defining cell apertures therebetween. The cell apertures define a non-circular interior shape. A fastener of the fence system has a shank and a head attached to one end of the shank. A shoulder positioned between the shank and the head is shaped to cooperatively engage a cell aperture for preventing rotation of the fastener when engaged with a foraminous panel. The foraminous panels are attached to the frame with a portion of each neighboring panel having an overlapping area through which fasteners are inserted and attached. An angled top edge cap is attached along a top end of the foraminous panels and is angled to deter climbing.

Abstract: A fencing system which utilizes coated steel to simulate wrought iron fencing and which comprises prefabricated sections of fence comprised of steel, the length of which can vary, ground or floor-anchored post members to which the fence sections attach using novel connectors. An ornament adorns each top vertical member of each fence section. Novel fence gate structure is also disclosed.

Abstract: An outside STYROFOAM.upsilon. polystyrene plastic wall or fence is constructed by anchoring each of at least two styrofoam H-columns to a concrete base in the ground supporting a steel reinforcing bar which extends up into a hollow of the column by filling the hollows with concrete. A STYROFOAM.TM. polystyrene plastic panel is supported within the grooves of juxtaposed columns. The fence may have any desired length. The panel is secured to the two columns by L-shaped rebars or a continuous length of rebar laid in a recessed groove atop each panel and column and anchored in the concrete in the column hollows. An exterior mesh-stucco or paint finish covers the wall. Columns--in--line, L, T--and panels--square or T--enable making walls of any shape or configuration.

Abstract: The present portable fence is durable, lightweight and easily transported, erected and dismantled. In use, it will collapse upon impact, due to a break away, in the first embodiment, a joint between the fence post and its supporting leg, and in the second embodiment a joint in the supporting leg, yet in both embodiments the fence may be quickly and easily re-erected.

Abstract: A hanger plate for interconnecting an upper segmented wall of a swimming pool to a vertical support. The swimming pool includes a floor and a plurality of walls formed by an excavation in the earth. A plurality of wall panels are interconnected end-to-end and located about the top of the excavation. Adjacent each joint of the segmented wall is one vertical support. Each vertical support is located to the exterior of the excavation and secured in the earth. A hanger plate having at least two rows of holes interconnects the vertical support and segmented wall. A first row of holes are elongated in a first direction while the second row of holes are elongated in a direction at a right angle to the first. The elongated holes provide for adjustments vertically and horizontally. The segmented wall is capped by an extruded coping which retains the upper edge of a vinyl liner fitted to the walls and floor of the pool.

Abstract: This invention relates to both concrete wall having a series of slanted deflection surfaces to spread the force of impacting vehicles, to buttress against earth forces, and to abate noises and to a method of constructing such a wall. The wall can be economically constructed from precast concrete elements which are adapted to be easily and rapidly stacked and joined in series to save on the cost of labor and materials. The wall is comprised of a series of panels which are stable and self-supporting when placed on a prepared foundation due to the Z-shape of the panels. Stable connection between the panels is provided by cast-in-place concrete, structural support columns. The legs of the Z-shaped panels form a stay-in-place form for the cast-in-place concrete when two Z-shaped panels are placed end to end. The cast-in-place concrete hardens and becomes integral structural support columns for the wall.

Abstract: A partition for forming fencing, or cages for warehouses, repair shops and the like, typically comprises a plurality of spaced, vertical posts and at least one mesh wall vertically positioned between the spaced, vertical posts and attached to them. The mesh wall defines a horizontally extending portion extending substantially the length of the mesh wall, with the horizontally extending portion being integral with the mesh wall but bent into transverse relation with the remainder of the vertically positioned mesh wall. The horizontally extending portion stiffens the mesh wall. Preferably the mesh wall defines a pair of such horizontally extending portions, one at the top and one at the bottom of the mesh wall. Also, by this invention a pair of mesh walls may be attached to the vertical posts in vertical relation to each other, being attached to each other by connectors through the horizontally extending portions.

Abstract: In a fencing system for animals the conventional rigid fence panels are interconnected by flexible members which allow the fence panel to move each relative to the next to accommodate impacts by a fractured animal. Different embodiments are shown including an elastic block between the posts, a flexible metal spring between the posts, a simple strap wrapped around the posts in a FIG. 8 arrangement and a modified elastic strap arrangement which includes two free ends engaged over a pin passing through an end post of the panel and an intermediate leg portion for engaging between the end post and the end post of a next adjacent panel.

Abstract: A picket fence including posts, rails and pickets mounted to the rails, the upper rail is mounted removably to the posts and the lower rail is mounted removably and rotatably to the posts.

Abstract: A barrier structure includes a barrier and elongate support members. The barrier includes upper and lower engaging parts that engage the engaging portions of the elongate members adapted to receive the engaging parts. Securing elements fit on the supporting members to secure the upper engaging parts to their respective engaging portions. A method of erecting a barrier structure is also provided. First, the lower parts of the barrier are received into their respective engaging portions of the elongate support members. Then the upper engaging parts are received by their respective engaging portions and the securing elements fitted onto the support members.

Abstract: The present invention relates to a single post module which provides all the connections needed to make a fence. This module can be assembled, by unskilled persons, with other like modules to form fence posts by end-to-end assembly and connection. Each module in a post has a connector to which hollow fence rails or panel sleeves may be attached. Fence panels thus formed have a post at each end. Each module in every post has projecting hinge fins which, when overlapped with the fins of modules in similar posts, permits joining of up to four posts and their fence panels by making a pin connection at the common axis through the holes in the hinge fins at that location. This permits construction of a fence which can branch into as many as three new fences at any location.

Abstract: A playpen frame structure comprising a rectangular top rail frame supported by four upright legs. Each side of the top rail includes a joint in its center to allow the frame to collapse. A reinforcement structure is provided on the lower ends of the supporting legs comprising reinforcement bars extending diagonally from the lower ends of the legs and pivotally connected to a central member.

Abstract: A fencing system which utilizes coated steel to simulate wrought iron fencing and which comprises prefabricated sections of fence comprised of steel, the length of which can vary, ground or floor-anchored post members to which the fence sections attach using novel connectors. An ornament adorns each top vertical member of each fence section. Novel fence gate structure is also disclosed.

Abstract: A modular framing system having a plurality of framing units between which panels may be retained. Each framing unit includes a main body having a plurality of circumferentially spaced receiving chambers having semi-circular configuration. One or more panel retainers may be connected to the main body, each including a panel cup and a chamber rod. The chamber rod is a which may be lowered into one of the receiving chambers to connect the panel retainer to the main body. The chambers have an angular extent less than that of the chamber rods, such that the rods and panel cups may be rotated to the desired angular position with respect to the main body. Each of the panel cups is adapted to receive a lower corner of a panel. With this arrangement two frame units may be located at spaced positions, with the panel cups of associated panel retainers opening towards each other to support the panel. The framing units may include a stake for driving into the ground.

Abstract: A reconfigurable safety fence system for disposition relative to a fixed plane or area of reference includes a plurality of panels, each panel having a central vertical post including a swivel-mounted wheel at a lower base and, essentially symmetrically about an axis defined by the central post, respective upper and lower horizontal, and left and right vertical, perimeters of each of the panels, including vertical picket elements between the horizontal perimeters, each of the vertical perimeters including hinge elements for rotational movement and securement of each panel relative to that panel adjacent thereto about a vertical axis of each of the hinge elements in which a first vertical perimeter of a first of the panels of the system is secured to the area of reference.

Abstract: A folding portable play enclosure for children includes a plurality of panels connected in a series in an accordion-fold manner by a plurality of folding joints. The panels are formed by cardboard sheets sandwiched between inner and outer flexible vinyl layers. The folding joints are formed by the provision of spaces between the ends of each adjacent pair of cardboard sheets in the series. First indicia on one face of each of the panels simulates an exterior appearance of a home and includes trees, exterior windows, exterior doors, and fences, for example. Second indicia on an opposite face of the panels simulates an interior appearance of a home and includes furniture, interior windows, interior doors, and bookshelves, for example. Cooperating snap fasteners allow the enclosure to be selectively secured in an erected orientation forming a closed play space or in a compact collapsed orientation for transportation and storage.

Abstract: A modular fence comprising at least two vertical end posts, a pair of vertically spaced, horizontal rails extending between the end posts and having ends connected to respective end posts by post connector members which allow for expansion and contraction of the rails, a plurality of horizontally spaced, vertical intermediate posts extending between the rails and having ends connected to respective rails by rail connector members which allow for expansion and contraction of the intermediate posts, and members located between adjacent intermediate posts for filling the spaces between the intermediate posts.

Abstract: A self-supporting panel for a fence has a skewed anchor sleeve welded to each lower corner of the panel for receiving a stake to fasten the anchor sleeve to the ground or other support. Two panels are joined by a pin in the open ends of abutting lower rails from each panel and by a cap joining the upper ends of adjacent stiles from each panel.

Abstract: The invention relates to a protective device adapted to be mounted at the base of a roof. The device has a set of posts each having a base section which locates in the gutter at the base of the roof and a fixing device linked to this base section, at least two arms being linked with a pair of posts, by upper parts and lower parts mounted on the posts, at least two bracing wires with each of these bracing wires being linked to one of the posts to connect it to a respective anchoring element located on the roof and a net connected to at least one of the arms and to two of the posts.

Abstract: A monolithic reinforced precast concrete post and base assembly is provided for mounting on an in-ground concrete pier having four bolts extending upwardly therefrom to register with four holes in the post and base assembly with the upper ends threaded so that the post and base assembly can be bolted onto and fastened to the in-ground pier. The posts have integral nailing strips for allowing the fastening of sound barrier panels to the posts and the posts are reinforced precast concrete having the necessary strength to withstand the wind-loading and other factors for the particular location of the installation. A sound barrier wall is provided by mounting the post and base assemblies at regular spaced intervals and affixing the sound barrier panels to the posts in either offset or aligned configuration.

Abstract: The invention is an improved fence made of plastic materials and comprising four parts. A central post, removable cap for the post, fence portions and adapter portions for connecting the fence portions with the central post. The adapter portions have bolt holes oriented in three directions to provide a securing arrangement for the fence and post portions.

Abstract: A fencing system and a method for confining farm animals includes conventional rectangular fence panels having end posts and cross rails but the posts are connected by flexible elements of a type which allow the posts to flex apart when impacted by an excited animal. This prevents damage to the panel while maintaining the animal properly confined. Various examples of the flexible element are disclosed including an elastic band that is wrapped around the posts in a figure of 8 arrangement, a convoluted spring and an elastic block.

Abstract: A fencing system which utilizes coated steel to simulate wrought iron fencing and which comprises prefabricated sections of fence comprised of steel, the length of which can vary, ground or floor-anchored post members to which the fence sections attach using novel connectors. An ornament adorns each top vertical member of each fence section. Novel fence gate structure is also disclosed.

Abstract: The subject invention provides a rock catchment barrier comprising a plurality of modules. Each module comprises a concrete base having a top surface, a post, a concrete barrier, an aperture for connecting the post to the top surface of the concrete base, a connector for connecting the concrete barrier to either side of the concrete base, and a fence panel for catching rocks, the fence panel being attachable to the post, wherein when the concrete base is connected to the concrete barrier, and the post is connected to the concrete base and the fence panel for catching rocks, a resulting module is formed. The rock catchment barrier provides protection for use in a rock excavation or scaling site where there is a need to stop rocks which are projected away from the site, such as when the rock excavation or scaling site is adjacent to a flow to traffic.

Abstract: A portable fence system including a snow fence panel having a wood frame of 2".times.6" posts bolted together at the corners, with a 4-foot wide strip of plastic snow fence material pulled taut across the center. Each panel is 8 feet long, with a height of 6'-8" or 8'-0", depending upon the application. In both cases the geometry of the frame is optimized for maximum snow trapping efficiency and maximum snow storage, and an opening at the bottom is optimized to eliminate the tendency for snow deposition at the fence. Panels are connected to one another by rebar pins passing through specially designed rotatably mounted U-clips, which also provide attachment to rebar anchors driven into the ground. The U-clip-and-pin connections allow rapid installation and take-down, and add flexibility needed for proper installation in irregular terrain. Panels can be overlapped at either the top or bottom as required to limit space between panels to 11/2", which improves trapping efficiency.

Abstract: Fence wall construction materials, method, and resulting wall. Flanged fence posts spaced apart at intervals corresponding to the end-to-end length of wall panels have their vertical edges slotted to accommodate the post flanges. Preferably the posts are I-beams or back-to-back C-members, and the panels are preformed lightweight material, such as foamed polystyrene, doubly slotted on their vertical edges to sandwich the post flanges within the slots.

Abstract: A series of horizontally spaced vertical blades each has a uniform thickness and opposite vertical edge portions projecting in opposite directions, and a lower end portion of each blade is locked within a slot of a corresponding cylindrical base member by a pair of retractable cross pins. The base members are mounted on interlocking joints of a series of base rail sections which precisely space the blades and mount on the top surface of a concrete highway median barrier. Bolts extend downwardly through the base members into anchors expanded within the barriers and secure each base member and the underlying rail sections of the barrier. Each blade and corresponding base member are rotatably positionable on the underlying rail sections which have upward projections for locating the base member and blade at a selected predetermined angle. The upper end portions of the blades may be releasably connected by a horizontal cable for use in high wind areas.

Abstract: A portable sport boundary fence is provided for use in a miniaturized baseball game wherein a hollow, perforated plastic ball is used with a hollow plastic bat wherein the fence comprises a plurality of hollow, tubular posts, each of which is slidably and removably engaged by a post anchor, wherein each of the posts is sufficiently thin at its base so that, when impacted by a player, the post either bends or breaks to avoid injury to the player, and wherein perforated netting is provided to extend between the posts and connectors are used to attach the perforated netting to each of the posts.

Abstract: A knock-down barrier positioned and supported about the circumference of an area or pool for preventing admittance into the area or pool. The knock-down barrier includes a plurality of barrier members, each being of singular construction in a hollow, tubular, airtight manner. The barrier members are supported within support holes positioned proximate the circumference of the area. Each barrier member can be separately removed or positioned within the support holes. The support holes are located within support posts embedded within the ground proximate the area. When the knock-down barrier is not in use, a plug is provided for each support hole so that the support holes do not have to be circumnavigated in order to avoid tripping or falling over them.

Abstract: A removable safety barrier erectable around the perimeter of a swimming pool or the like including a plurality of upright barrier elements positionable end-to-end around the pool and an alarm arrangement for detecting relative movement between adjacent barrier elements as when a child attempts to enter the pool. Electrical connection between adjacent barrier elements for the alarm is automatically made each time the device is erected around the pool. Improved resistance to tearing, ripping or pulling the restraining mesh from support members is also provided.

Abstract: The present invention concerns a panel with a horizontal or vertical transverse ridged cross-section, that can be interconnected in sucession with other panels of the same type to form a continuous screen which is installed above the central barrier separating the two carriageways of a road, or above the barriers that delimit the sides of a road; this screen, particularly when installed above the central barrier of a road, being designed to be capable of simultaneously acting to screen off full beam headlamps and spray from wet road surfaces from the opposing carriageways of a road, and to act as a reference at night and/or in conditions of poor visibility, due to the high refractive power of its surfaces.

Abstract: Recycled lumber is used to create modular units of fencing that is superior both economically and in strength to new lumber. Composite redwood boards are comprised of three 5/8".times.7" panel sections and two elongated 1".times.1" rails having a dado running the length of the rail. The panels are lap jointed together, and the dadoed rails brace the panels and provide stability. The rails are stapled to the panels and create a nominal 1".times.8" composite board.

Abstract: A guard fence system is useful for preventing persons from falling off bleachers. The guard fence system comprises at least two upright posts mounted to the bleachers. Each post has a lower U-channel and an upper U-channel spaced a predetermined distance apart. The lower and upper U-channels have respective slots that open into the top ends of the U-channels. A guard fence member comprises a rectangular frame covered with a grill material. Upper and lower pins extend oppositely from the frame vertical members. The lower pins of the guard fence member are inserted into the slots of the lower U-channel. The guard fence member is pivoted to a generally vertical attitude such that the guard fence member upper pins are proximate the upper U-channels on the posts. The guard fence member is lifted and further pivoted until the upper pins thereof are vertically over the slots of the corresponding upper U-channels on the posts.