Abstract: A fastening spring that includes a tolerance zone and a restraint zone. The tolerance zone has a steep incline and the adjoining restraint zone has a flat incline. This allows for tolerance compensation that is increased by the disassembly strength. Furthermore, the fastening spring can be easily manufactured and allows for a damage-free disassembly and assembly of a first component into a second component.

Abstract: Disclosed is a clip for mounting an article, comprising a base member being of a plate shape and having a through hole thereon; a pair of flanges extended from opposite ends of the base member in a direction perpendicular to a lengthwise direction of the base member; a pair of insertion parts extended from opposite sides of the base member and bent upwardly to be in contact with each other; and a pair of anchoring plates which are downwardly cut from the center area of each insertion part, are projected outwardly, are elastically deformable, and have a stepped part formed with inward and outward bent parts at a free end of each anchoring plate. With this configuration, the present invention provides a clip for firmly and easily mounting article on a support structure and for easily separating the article from the support structure.

Abstract: This invention relates to a sealing spring fastener, which comprises a U-shaped structure, on which an elastic body has been incorporated. The elastic body has a closed cavity within the U-shaped structure. The sealing spring fastener can form an assembly with an extension of a panel, preferably a plastic panel. The assembly or the fastener by itself can be engaged into the slot of a solid sheet, preferably a metal sheet, in a manner that one side of the sheet is sealed from the other side of the sheet in the vicinity of the slot.

Abstract: The invention relates to an auxiliary-handle fixture for a modular headliner of an automobile, which enables an easy mounting and nevertheless guarantees a firm securement of accessaries.

Abstract: An integral spring clip and computer slot cover is disclosed for mounting over an expansion slot of a PC. The cover has an integrally formed spring clip assembly for capturing a ledge of the PC case over an expansion slot therein at one end and means formed at an opposite end of said cover assembly for retaining that end of said cover assembly to the computer case to allow either a slot cover to be mounted over the slot without the use of screws or to mount an expansion card therein by mounting the card through an opening formed in the cover assembly.

Abstract: A fastener clip for securing a rubberized molding in a vehicle interior, the vehicle interior including a windshield and a spaced apart and extending edge of a dashboard assembly. The clip includes a body constructed of a spring steel stamping and having a specified three dimensional and substantially “U” shape with a base, first side and second side. A first pair of inwardly directed prongs extend from the first side and engage a first portion of the rubberized molding and a first location of the dashboard. A second pair of inwardly directed prongs extend from the second side and engage a second location of the dashboard. The fastener clip body affixes the first molding portion of the molding to the extending edge of the dashboard and so that a second extending portion of the molding extends in abutting fashion against a corresponding inner surface of the windshield.

Abstract: The fixing system comprises a clip (1) and a peg (15) previously fixed to the respective accessory (13) which is to be attached to the clip (1) to define an integral assembly that is fixable to the respective self-supporting panel or element. The clip (1) has a window (14) on its base, allowing a peg (15) through, the peg being fixed by means of the facing top edges (11) in which the sides (8) of the actual clip (1) end, the foregoing in order that, by inserting and clipping the peg (15) through the clip (1), the integral clip-peg-accessory assembly may be fix onto the respective bodywork vehicle directly, without anchorage screws being required. Dismounting can be easily made by means of a suitable implement which is driven to turn and separate the top edges (11), allowing the clip to be rendered independent from the peg, and hence the assembly to be dismounted.

Abstract: The metallo-plastic clip comprises a clip and a plastic shank of which is part the corresponding accessory to be placed in an opening provided on the vehicle body, with an interposed vechicle roof. The clip provided with flexible flaps with a bend after which there is a horizontal segment of maximum size with a notch for attaching the clip to the opening of the vechicle body, while in a central area the flexible flaps are provided with a cut without loss of material forming center segments projected towards the center and with rounded corners which allow passage between them, with their corresponding lateral displacement and thereby also of the flaps, of any tool in order to free the clip from the shank.

Abstract: This invention relates to a sealing spring fastener, which comprises a U-shaped structure, on which an elastic body has been incorporated. The elastic body has a hermetically closed cavity within the U-shaped structure. The sealing spring fastener can form an assembly with an extension of a panel, preferably a plastic panel. The assembly or the fastener by itself can be engaged into the slot of a solid sheet, preferably a metal sheet, in a manner that one side of the sheet is sealed from the other side of the sheet in the vicinity of the slot. In a preferred version, the sealing fastener comprises a substantially non-elastic tough casing around portion of the elastic body in order to avoid rapture during insertion of the fastener into the slot.

Abstract: A spring clip having a flexible leg portion ending in a tab is made to be mountable in an expansion slot of a PC to allow the tab of the clip to capture either an expansion slot cover or a PC expansion card by having the tab spring into a hole found in both the expansion card and the blank cover fitting therein.

Abstract: This invention relates to a spring fastener, which comprises side structures, preferably connected to form a U-shaped structure. The two side structures have multiple engagement springs comprising pairs of recesses and respective peaks. The number of these pairs is different on one spring than the number of pairs on the other springs. The spring fastener may further comprise an elastic or resilient body under the top end of the fastener, thus providing noise elimination or dampening. In a different embodiment, the fastener may also comprise rigid supports over the two extremities of its top end, which rigid supports force the resilient body all the way around on the fastened article, so that this configuration provides, in addition to noise elimination or dampening, excellent waterproofing properties.

Abstract: A resilient clip with a plurality of twisted wings for engaging a first structure. The twisted wings provide the clip with a low ratio of insertion force to pull-out force, rendering the clip relatively easy to install yet difficult to pull out. In one embodiment, the resilient clip includes at least three wing members that cooperate to prevent the resilient clip from rotating relative to the first structure. In another embodiment, the resilient clip includes an engagement portion having a plurality of teeth for engaging a tab formed into a second structure. The teeth of the engagement portion engage the tab, permitting the resilient clip to be coupled to the second structure. When the resilient clip is engaged to the first structure, the teeth of the engagement portion cannot disengage the tab, rendering the resilient clip non-removably coupling the resilient clip to the first and second structures.

Abstract: The subject matter is a resilient unitary lighting clip which connects a bar hanger to a T-bar in an overhead lighting assembly. The clip includes a face plate which has a lock formed integral with the face plate to secure the clip to the bar hanger. A U-shaped connector is formed integral with the face plate for receiving a bar hanger. A support is formed integral with the connector for receiving a portion of a T-bar. A catch is formed integral with the support and is resiliently connectable to the T-bar. A tab is formed integral with the support and is engageable with the T-bar for positioning the clip relative to the T-bar.

Abstract: A resilient clip for engaging a structure and having a body portion having a pair of flanges, a pair of wing members and a pair of abutting flanges. Each of the wing members has a base portion that is coupled to an associated one of the flanges. A first one of the wing members is twisted about a first axis in a first direction and a second one of the wing members is twisted about a second axis in the first direction. Each of the wing members terminates at a tip portion that is angled downwardly toward the base portion such that a portion of an associated one of the wing members nearest a central axis of the body portion extends above an associated portion of the wing member furthest from the central axis of the body portion. The tip portions are configured to engage a first side of the structure and position a second side of the structure against the abutting flanges.

Abstract: This invention discloses fasteners characterized by the use of barbs to secure a primary object in place. More particularly, the barbs which are used are critically shaped barbs resulting in considerable increase of the holding force without sacrificing the flexibility of the barbs, and without sacrificing the broad acceptability of various thicknesses of the primary object to be fastened.

Abstract: The invention relates to a fixing element for connecting component parts, in particular plastic paneling, to sheet-metal, in particular parts of the chassis of a motor vehicle. Said fixing element comprises a plastic body which has a base configured for insertion into a U-shaped retaining element of the component part, and a head which, when assembled, projects through an opening in the metal sheet and carries latch springs which form an acute angle in relation to the longitudinal axis of the plastic body and, when assembled, lock behind the edges of the opening in the metal sheet.

Abstract: A cable holding arrangement with a holding plate (10) is suggested which has a plurality of similar holding openings (11) arranged next to each other in a row. At least one holding clip (13) has two plug feet (15) connected with one another through a holding area (14) for insertion into two of the holding openings (11). In the inserted condition, the holding clip (13) forms a U-shaped arrangement through which a cable (12) to be secured can be engaged and pressed against the holding plate (10). The plug feet (15) have a stop arrangement (16) locating with the holding openings (11). In this way, cables (12) can be secured in different ways to the holding plate (10) by simple insertion of a holding clip, simple release and shifting also being possible.

Abstract: A device for fastening a first flat component (1) to a second flat component (2) comprises a spring clip (3). The second component (2) has a rectangular recess (4) which is engaged by the first component (1) with two opposing, angled plane material sections (5) in which slot-type recesses (6) are configured oriented parallel to the second component (2). The spring clip (3) has a U- or V-shaped cross-section and outwardly bent flanges (7). These flanges (7) are inserted between the material sections (5) and supported in the first component (1). The angled flanges (7) of the spring clip (3) extend in a final fitted position through the slot-type recesses (6) and engage behind the second component (2).

Abstract: A clip for securing an interior molding to a vehicle frame. The clip includes a body having a first upwardly extending side and a second upwardly extending side. First and second flattened base plates extend in perpendicular and opposite fashion from terminating bottom edges of the upwardly extending sides and corresponding top edges of the sides are integrally connected to a substantially "U" shaped curved and interconnecting top portion. The base plates are spaced apart to define therebetween a central and vertical opening in the clip body for receiving in inserting fashion a thin and elongate projection of the trim piece or molding to be applied. From inwardly facing and opposing surfaces of the base plates extend inwardly and upwardly directed tangs for securing to the molding. First and second elongate and spring biased members extend in generally downwardly and first and second reverse bended fashion from the opposing edges of the "U" shaped interconnecting portion.

Abstract: A spring clip has a first and second retention member. The first retention member retains a first part to the spring clip. The second retention member retains the spring clip in a second part. The second retention member provides for retention in a first and second position. In the first position, the first and second parts are in an engagement position and in the second position, the retention member enables servicing of the first part while still connecting the first and second members.

Abstract: A spring fastener for securing one or more sheets of material on another sheet of material having a first clip with inwardly extended barbs, and a second clip having two sides. One of the sides has a wide angle bent, while the other side has one or more embosses and/or recesses. The fastener also comprises a resilient elastic body extending from the vicinity of the base of the first clip to at least one of the embosses. Examples of resilient bodies are foamed or unfoamed plastisol or polyurethane. The substantially central part of the resilient body is effectively reinforced and held in position by a sealing promoter extending preferably from the vicinity of the base of the first clip toward a middle position between the first and the second sides of the second clip, thus providing to the fastener superior sealing performance.

Abstract: A clip for securely retaining a weatherstrip in the upper mounting channel of an upper door frame of an automotive vehicle is described. The clip possesses a plurality of tines that engage various portions of the weatherstrip and the upper mounting channel so as to provide a resistive force against a dislodging force.

Abstract: The multi-functional clip provides two functions: holding a plurality of multi-layer magnetic transformers together in a vertical stack; holding together the respective E-Cores of each of the plurality of multi-layer magnetic transformers. This is accomplished by the use the multi-functional clip that comprises a body, having four tapered flanges that extend vertically from the periphery of the body to form the arms that enclose and contact the multi-layer magnetic transformers. The vertically oriented arms each include a feature formed at a distal end thereof that mates with a recess formed in a side of a corresponding one of the multi-layer magnetic transformers. The vertically oriented arms are manufactured of a spring material to thereby apply a horizontal force to the multi-layer magnetic transformer.

Abstract: A self adjusting spring fastener for securing one sheet of material on another sheet of material having a clip member with inwardly extended barbs, and one clip with outwardly extended barbs, or outwardly ribs or embosses, or a combination of both outwardly extended barbs and outwardly extended ribs or embosses.

Abstract: In a method of manufacturing a clamp, an elastic band member is bent into a direction of an inner surface at a center position of the band member. The band member having the inner surface and an outer surface. The band member is bent into the direction of the inner surface at first bending portions having a first predetermined length from the center bending portion to form first extending portions. The band member is bent into a direction of the outer surface at second bending portions having a second predetermined length from the first bending portions in tip directions to form second extending portions. The band member is bent into the direction of the outer surface at third bending portions having a third predetermined length from the second bending portions in the tip directions to form third extending portions.

Abstract: A cover securing structure for securing a cover to an end surface of a cylindrical member having a plurality of engaging projections each having a hook portion and projecting over a contact surface of the cover with which the cover is brought into contact with the end surface of the cylindrical member, locating projections in the form of two parallel arms apart from each other for a predetermined distance and projecting over the contact surface in the regions among the plural engaging projections, accommodating grooves formed in the end surface of the cylindrical member at positions corresponding to the engaging projections, and accommodating grooves formed in the end surface of the cylindrical member at positions corresponding to the locating projections, wherein the hook portions of the engaging projections are formed to face the inner surface of the cylindrical member, the accommodating grooves have lock portions for receiving and locking the hook portions, and the accommodating grooves have ribs each havi

Abstract: A clip (100) is provided that is adapted to be pressed into an opening (32) through a frame (30) with resilient fingers (12) and (12') operative to expand outwardly to enable sections (15) and (15') of fingers (12) and (12') to engage a lower edge (33) surrounding opening (32) through frame (30). A protuberance (26) extending from trim 24 is pressed between free-ends (18) and (18') respectively of prongs (16) and (16') extending from opposite sides of an aperture (22) through head portion (8) of clip (100) that are operative to secure trim (24) to clip (100) and frame (30). Fingers (12) and (12') extend from arms (10) and (10') of clip (100) whose free-ends (14) and (14') remain separated such that the lower end of clip (100) remain apart to prevent force imparted upon trim (24) from being transferred to clip (100).

Abstract: A shielding panel for shielding circuit card slots on a computer chassis, and particularly a shielding panel for use with printed circuit board brackets and/or blank brackets to shield circuit card slots provides an arrangement for reducing the leakage of electromagnetic waves and/or radio frequency waves through a computer chassis by providing protrusions around circuit card slots in the slot frame. The design of the present shielding panel includes a tab which wraps around an edge of the circuit card slot to help place and hold the shielding panel in position while substantially eliminating the potential interference between neighboring panels and/or panels and neighboring slots and inhibits the formation of a gap between the shielding panel and the computer chassis slot frame, therefore, substantially eliminating the chance of a bracket tip catching in such a gap.

Abstract: The invention relates to a single contact spring, especially for RF-screening of electronic devices, for latch-locking into sheet-metal apertures. The invention envisages, in a first embodiment, that the single contact spring includes a latch cage (14) and a resilient contact part (2) configured as a contact cup (6), the latch cage (1) is generally configured in a trough shape and, in its lower part, trapezoidally in cross-section, being open at its two front ends and being provided on its two longitudinal sides with two opposing cutouts (16). The top edge of the longitudinal side is angled-off outward and the contact cup (6) is held by means of an angled-off, resilient carrier part (14) fastened to one of the front ends. The advantage of this spring is that it can be mounted in one mounting direction and can be laterally traversed. The contact cup can also, in a further embodiment, be configured in a roof shape.

Abstract: A clip not only has a substantially cylindrical clip main body arranged on a side surface of a base plate so as to be integral with the base board, but also has a pair of flexible blades arranged in tonguelike form so as to be sloped upward toward the clip main body at positions close to the clip main body with the base plate as the basal ends of such flexible blades. Further, a pair of retaining protuberances having flexibility are formed on a circumferential wall surface of the clip main body so as to be integral with the clip main body. The flexible blades are disposed so as to be substantially 90.degree. shifted from positions at which the retaining protuberances are formed. Still further, notches are formed so as to accommodate the front ends of the pair of flexible blades at positions confronting the pair of flexible blades on the circumferential wall surface of the clip main body.

Abstract: The cabinet for a front serviceable appliance includes a pair of side panels with a lower and an upper support extending between their lower and upper front corners respectively. Tab and slot arrangements mount a front panel on the lower support for pivotal movement between a first position, juxtaposed to the side panels, and a second position, angled away from the side panels. A plurality of locking clips secure a top flange of the front panel to the upper support. A top panel is spaced above the top of the front panel sufficiently for access by a tool to release the front panel from the upper support. Pin and slot arrangements align the front panel with the side panels.

Abstract: A clip fastener includes a retainer member having a spring clip cooperating with a post projecting from the underlying sheet metal of the vehicle such that the retainer can be slid over the post and locked into position by the clip. An accessory, such as a grab handle, is attached to the retainer using a conventional fastener. The retainer preferably includes a tapered slot for allowing the fastener to slide into locking engagement with the mounting post.

Abstract: A clip for coupling an inner shield with a frame of a cathode ray tube preventing the clip from being detached from an insertion hole after coupling and easy to mount, comprising: a head portion including grippers 91 having free ends, extended from the two sides of the head portion with having a certain angle; connecting portions formed by upwardly bending extensions from the two sides of the head portion; and supporting portions having elastic bending portions formed by outwardly bending extensions from the upper part of the connecting portions and contacting portions formed by upwardly bending extensions from the elastic bending portions.

Abstract: A fastener assembly for fastening an interior panel to an exterior or body panel of an automobile comprising a grommet of plastic material that forms a non-porous seamless bathtub-like enclosure surrounding a metal clip retainer member which is secured within the interior thereof; the retainer-grommet is designed to snap-fit into a hole in the body panel of an automobile. A depending lug or prong from the interior panel of the automobile is provided with an enlarged tip that cooperates with the metal clip retainer so that the prong can be pushed into a snap-fit relationship with the metal clip member within the sealed enclosure of the grommet or by pulling can be removed therefrom.

Abstract: A clip for joining end pieces of weather stripping in abutting relationship to form a continuous loop. The clip forms around an attachment portion of the weather stripping such that it does not interfere with the use of weather stripping in sealing. A pair of barbs hold the two pieces of weather stripping in abutment.

Abstract: A locator and attachment apparatus for attaching a cover panel to a trim bezel including a projecting member and clip whereby the projecting member guides the cover panel into the proper position through use of a slot on the trim bezel and the clip attached to the projecting member thereby secures the projecting member in place.

Abstract: A system for attaching a trim piece to a panel of, for example, a vehicle, includes a cover and a retaining strip forming the trim piece and adhesive to secure the retaining strip to the panel. The cover includes a set of formations that engage with a complementary set on the retaining strip allowing the adhesive to hold both on the panel. The cover may be removed without removing the retaining strip.

Abstract: A clip assembly is used to connect a base member, such as a vehicle bumper, to a fitting member, such as an ornamental plate. The base member includes a plurality of projections, and the fitting member includes a plurality of corresponding through holes. The projections of the base member are inserted through the through holes of the fitting member. The fitting member is secured to the base member by means of the projections which are clamped by a plurality of clips. A plurality of holding members retain the clips in position during installation, and are disposed around the through holes.

Abstract: An instrument panel mounting structure for an automobile, characterized in that lower end portions of a pair of front pillar trims are forcibly flexed inwardly of a cabin of the automobile to come into contact with laterally opposite end portions of an instrument panel, respectively, thereby securely eliminating a gap between the lower end portion of each front pillar trim and the corresponding laterally opposite end portion of the instrument panel to improve an appearance. A pair of leaf springs are mounted to the laterally opposite end portions of the instrument panel, respectively. The lower end portions of the front pillar trims are biased inwardly of the cabin by the leaf springs so as to be urged against the laterally opposite end portions of the instrument panel, respectively.

Abstract: A flexible grounding element comprises a rectangular base portion, and a pair of side portions extending obliquely and upward from the edges of the base portion. Each of the side portions includes a pair of slots at the intermediate portion of its edges. One of the side portions bends toward the other one of the side portions at the location adjacent to the slot to form a bend portion. The front end of the bend portion bends upward to form an end portion which contactably touches the inner side of the other side portion. As the side portions are being pressed, a portion of each side portion will pass through the hole of a mother board, and as the side portions are released, the slots thereof will urge against the inner rim of the hole to effect positioning. Furthermore, each corner of the base portion has a flexible plate which includes a protrusion at the bottom thereof.

Abstract: In a clip for application to a longitudinal flange for mounting components such as trim strips having a component holding block (body) from which resilient fingers projecting away from an abutment protruding from the block are formed as upright arms which project from the block and are provided at their free ends with catching projections which, when they catch onto the longitudinal flange, press the upright arms round a bending zone extending in the transverse direction thereof away from the abutment.

Abstract: The invention features an elongated strip of resilient material, which strip is secured in and partially surrounds a mounting member, where the resilient strip member has a semi-cylindrical body with a pair of circumferentially facing edge portions. The resilient strip also includes a pair of oppositely disposed, radially-inwardly extending solid, wedge shaped latch members, each extending longitudinally of the latch member and located between one of the edge portions and a point 45 degrees away from the mid-line of the semi-cylindrical body. The mounting member includes a web portion having a pair of oppositely disposed web-latch extensions extending across a chord of the semi-cylindrical body, substantially parallel to a tangent to the circumference of the semi-cylindrical body at its mid-line, and at least one leg member extending from the web portion away from the semi-cylindrical body.

Abstract: A mounting clip for securing a lamp housing to a support panel formed with a retainer slot having an access portion and a retainer portion, and in which the mounting clip has a hold-down portion adapted to be fixedly connected to the lamp housing and be inserted into the access portion of the retainer slot after which a movement of the lamp housing towards the retainer portion of the retainer slot causes a lock portion of the mounting clip to engage teeth provided in the retainer portion to lock the lamp housing to the support panel.

Abstract: A retaining clip for fastening a construction part to a carrier plate, in which the retaining clip has a supporting plate that rests on the carrier plate, a clamping tab for holding the part to the clip and a compressible fastening sleeve formed of two sleeve wall halves for anchoring the clip in a hole in the carrier plate. At least one of the sleeve halves has a pair of outwardly projecting, resiliently compressible hooks that pass through the hole and then engage the plate from behind when the sleeve of the clip is pressed into the hole to hold the clip in place, and a pair of tabs adjacent the hooks that project outwardly beyond the edges of the hole on the front side of the carrier plate, so that when the tabs are squeezed together, the hooks will be released and the clip can be readily removed.

Abstract: Disclosed is a protective strip assembly for use in protecting walls, cabinets, display stands, and the like from impact by shopping carts and the like in retail outlets. The assembly comprises an elongate base member and an overfitting protective trim member held together by opposed interlocking ridges and notches. The overfitting protective trim member absorbs shock as opposed leg members resiliently spread transversely to the axis of the strip assembly at interfitting sliding surfaces. Optional inwardly deformable latching elements may be included in the base member to permit the trim member to be fitted during installation directly adjacent an abutting wall or other obstruction.

Abstract: An improved attachment clip for use in securing automotive interior trim components to structural members within the motor vehicle is disclosed. The improved attachment clip includes an H-shaped body member adapted to be anchored directly to a core layer of the trim component, and an attachment clip member provided for securing the attachment clip and, in turn, the trim component to the rigid mounting structure. The H-shaped body member includes a central stem and a first pair of elongated prongs which project forwardly and transversely relative to the central stem. A second pair of elongated prongs project from the central stem so as to extend in a opposite direction from the first pair of prongs and which have a down-turned end portion. The first pair of elongated prongs are offset below a planar surface defined by an underside surface of the central stem and the second pair of prongs so as to extend generally parallel thereto.

Abstract: A fastener attaches to a vehicle body, for example the underside of a hood, to retain a device on the vehicle. The fastener has a bracket with a hook for engaging a first land of the hood, a bar connected to the hook through an elbow for engaging a second land of the hood and a tab at the end of the bar for engaging a third land of the hood. A pin secures the bracket in place using a recess in the hood and the bracket is adapted to wedge into position on the lands to further secure it in place. The device connects to the bracket.

Abstract: A computer casing connector comprising an electrically conductive U-shaped body, one limb of which has a plurality of snap catches to snap on one piece of a computer casing and the other limb of which has a plurality of resilient arcuate members to contact with the other piece of the computer casing when the casing is assembled so as to provide an electrical connection between the casing pieces and, thus, prevent the radiation of electromagnetic waves out of the casing.

Abstract: The invention features an elongated strip of resilient material, which strip is secured in and partially surrounds a mounting member, where the resilient strip member has a semi-cylindrical body with a pair of circumferentially facing edge portions. The resilient strip also includes a pair of oppositely disposed, radially-inwardly extending solid, wedge shaped latch members, each extending longitudinally of the latch member and located between one of the edge portions and a point 45 degrees away from the mid-line of the semi-cylindrical body. The mounting member includes a web portion having a pair of oppositely disposed web-latch extensions extending across a chord of the semi-cylindrical body, substantially parallel to a tangent to the circumference of the semi-cylindrical body at its mid-line, and at least one leg member extending from the web portion away from the semi-cylindrical body.

Abstract: The invention features an elongated strip of resilient material, which strip is secured in and partially surrounds a mounting member, where the resilient strip member has a semi-cylindrical body with a pair of circumferentially facing edge portions. The resilient strip also includes a pair of oppositely disposed, radially-inwardly extending solid, wedge shaped latch members, each extending longitudinally of the latch member and located between one of the edge portions and a point 45 degrees away from the mid-line of the semi-cylindrical body. The mounting member includes a web portion having a pair of oppositely disposed web-latch extensions extending across a chord of the semi-cylindrical body, substantially parallel to a tangent to the circumference of the semi-cylindrical body at its mid-line, and at least one leg member extending from the web portion away from the semi-cylindrical body.