SE449905B

SE449905B - Fixing device engageable in support hole

Info

Publication number: SE449905B
Application number: SE8401641A
Authority: SE
Inventors: E Funseth
Original assignee: Sandstroem & Funseth Int Hb
Priority date: 1984-03-23
Filing date: 1984-03-23
Publication date: 1987-05-25
Also published as: SE8401641D0; SE8401641L

Abstract

A fixing device engages with a support (4) by means of a hole (5) in the support. The device has two components (2,3) bearing against opposite sides of the hole. The first component is inserted through the hole by a guide (1), and the second component is slid along the guide to clamp the first component against the support. The first component comprises a flexible spiral inserted through the hole, and whose turns bear against each other on clamping against the support. The spiral cannot then be pulled back through the hole.

Description

15 20 25 30 35 Föredragen utföringsform Anordningen enligt uppfinningen innefattar tre huvud- delar, nämligen ett band 1, en spiral 2 och en bricka 3 samt- liga tillverkade av plast. Bandets 1 ena ände är förbunden, exv utförd i ett stycke med lilländen (det innersta varvet) på den såsom en konisk skruvfjäder utformade, flexibla spiralen 2. Preferred embodiment The device according to the invention comprises three main parts, namely a belt 1, a spiral 2 and a washer 3 all made of plastic. One end of the belt 1 is connected, for example made in one piece with the small end (the innermost turn) of the flexible spiral 2 designed as a conical helical spring.

Spiralen består av ett platt band, vars varv delvis överlappar varandra, såsom visas i figuren. Brickan 3 är försedd med ett centralt hål med en i detta obetydligt utskjutande tunga 3a, vilken ingriper med tänder 1a på det flexibla bandet, vars rek- tangulära tvärsnitt är obetydligt mindre än brickhålets rektangu- lära tvärsnitt. Brickan 3 är även försedd med ett spår 3b eller något annat för ändamålet lämpat urtag eller utsprång.The spiral consists of a flat band, the turns of which partially overlap each other, as shown in the figure. The washer 3 is provided with a central hole with a tongue 3a projecting insignificantly therein, which engages with teeth 1a on the flexible band, the rectangular cross-section of which is insignificantly smaller than the rectangular cross-section of the washer hole. The washer 3 is also provided with a groove 3b or some other recess or projection suitable for the purpose.

Den ovan beskrivna anordningen kan användas i någon av ett flertal olika applikationer, speciellt där den ena sidan av den bärare vid vilken anordningen fastsättes icke är tillgänglig för montören. I det följande kommer anordningens montering att beskrivas i samband med att ett hål för en demonterad antenn på en personbil skall täckas. I figuren betecknar 4 bilplåten och5 antennhålet i densamma. Plåtens i figuren övre yta utgöres av bilens yttre lackade yta. Sedan bandets 1 med spiralen 2 förbund- na ände och en del av spiralens inre varv uppifrån nedförts i hålet 5 tryckes bandet nedåt under vridning av spiralen så att dess varv gängas över hålkanten tills det yttersta, största varvet befinner sig under plåten. Därefter drages bandet 1 uppåt varvid spiralens 2 varv bringas till överlappande anliggning mot varandra och mot plåtens undersida runt hålet. Brickan 3 trädes därefter på bandets 1 fria ände och förskjutes mot plåten under det att montören fasthåller bandet. Tungan 3a snäpper därvid över de snett nedåt lutande tänderna 1a på bandet. Sedan brickan pressats till anliggning mot plåtens 4 översida samtnügt som bandet dragits uppåt intar bandet, spiralen och brickan sina i figuren visade lägen med spiralen fungerande som en bricka förhindrande spiralens återföring uppåt genom hålet 5 och med brickan 3 via tungan 3a fastlåst av en av tänderna 1a på bandet.The device described above can be used in any of a number of different applications, especially where one side of the carrier to which the device is attached is not accessible to the installer. In the following, the mounting of the device will be described in connection with a hole for a disassembled antenna on a passenger car being covered. In the figure, 4 denote the car plate and 5 the antenna hole in it. The upper surface of the plate in the figure consists of the car's outer painted surface. After the end of the strip 1 connected to the spiral 2 and a part of the inner turn of the spiral has been lowered into the hole 5 from above, the strip is pressed downwards while rotating the spiral so that its turns are threaded over the hole edge until the outermost, largest turn is below the plate. Then the belt 1 is pulled upwards, whereby the turns of the spiral 2 are brought into overlapping abutment against each other and against the underside of the plate around the hole. The washer 3 is then stepped on the free end of the belt 1 and displaced towards the plate while the fitter holds the belt. The tongue 3a then snaps over the obliquely downwardly inclined teeth 1a on the belt. After the washer is pressed into abutment against the upper side of the plate 4 as the belt is pulled upwards, the belt, spiral and washer assume their positions shown in the figure with the spiral acting as a washer preventing the spiral from returning upwards through the hole 5 and with the washer 3 via the tongue 3a locked by one of the teeth 1a on the band.

Bandet 1 klipps därefter av i linje med brickans översida, var- efter en förkromad eller i lämplig färg lackad platta med större diameter är brickan 3 trycks fast runt brickan via spåret 3b. “__ 449 905 3 Det ovan beskrivna och på ritningen visade utförandet av anordningen kan naturligtvis modifieras inom uppfinningens ram.The strip 1 is then cut off in line with the top of the tray, after which a chrome-plated or suitably painted lacquer with a larger diameter is the tray 3 is pressed around the tray via the groove 3b. The embodiment of the device described above and shown in the drawing can of course be modified within the scope of the invention.

Sålunda kan spiralen ges en annan form och kan t o m vara väsentligen cylindrisk i vissa applikationer. Även brickan kan vara utformad på annat sätt och anpassas till olika applikationer, exv kan den vara utformad som en krok om anordningen användes för upphängning av föremål på en vägg. Uppfinningen begränsas således endast av det i patentkraven angivna.Thus, the coil can be given a different shape and may even be substantially cylindrical in some applications. The tray can also be designed in another way and adapted to different applications, for example it can be designed as a hook if the device is used for hanging objects on a wall. The invention is thus limited only by what is stated in the claims.

Claims

10 15 20 25 449 905 4 PATENT REQUIREMENTS

Device for attachment to a carrier (4) provided with a hole (5), the dimension of which in parallel with the carrier is less than the greatest extent of each of two on opposite sides of the hole, against the opposite surfaces of the carrier abutting in the device component (2, 3), the first element (2) being insertable through the hole together with a bushing (1) connected to this element and the second element (3) being displaceable on the bushing towards the first element clamping against the carrier, characterized in that the first element consists of a flexible spiral (ZL which is made in one piece with the lead-through (1) preferably formed as a single strip and consists of plastic, which spiral can be lowered through the hole. (5) and whose turns after the clamping against the carrier (U) abut against each other and thereby prevent the return of the spiral through the hole.

Device according to claim 1, characterized in that the spiral (2) is conical with its small end connected to the bushing (1) and its large end projecting in the direction of the second element (3).

Device according to claim 1 or 2, characterized in that the spiral (2) consists of a flat band with its flat surfaces abutting each other. U. Device according to claim 1, 2 or 3, characterized in that the second element (3) is displaceable on the bushing (1) only in the direction of the first element (2). »Qi