SE513242C2

SE513242C2 - Holder for e.g. condom or rubber or plastic glove, has ring shaped part of object sucked into groove around nozzle, linked to cavity inside nozzle

Info

Publication number: SE513242C2
Application number: SE9804270A
Authority: SE
Inventors: Jarmo Gustavsson
Original assignee: Jarmo Gustavsson
Priority date: 1998-12-10
Filing date: 1998-12-10
Publication date: 2000-08-07
Also published as: SE9804270L; SE9804270D0

Abstract

The cylindrical nozzle (1-3) used to fill the object pulled over it with pressurised gas contains a cavity (5) connected to a vacuum line (8) via a control valve (9). A ring groove (14) around the outside of the nozzle has holes (11) in its base, which communicate with the cavity so that a ring-shaped part (13a) of the object can be sucked into and held inside the groove.

Description

513 242 2 till bifogade ritning, sun schematiskt i längdsektion visar ett utföringsexempel på en hållare enligt uppfinningen speciellt avsedd för täthetsprovning medelst tryckluft. Sanna hållare är emellertid även användbar för hållfasthetsprovning, dels med tryckluft, dels genan fyllning av objektet med vatten. 513 242 2 to the attached drawing, which schematically in longitudinal section shows an embodiment of a holder according to the invention specially intended for tightness testing by means of compressed air. True holders are, however, also useful for strength testing, partly with compressed air and partly by filling the object with water.

Hållaren är cylindrisk och har en fast munstycksdel l med en fast i denna anbragt hylsa 2, på vilken en rörlig mynningssdel 3 av munstycket är lagrad axiellt rörlig. Den fasta delen l är försedd med en ledning 4 för ett tryckfluidurn, som fortsätter genom ett hålrum 5 i hållaren via en elastisk ledning 6 till en utloppsöppning 7 i mynningsdelen 3.The holder is cylindrical and has a fixed nozzle part 1 with a sleeve 2 fixedly arranged therein, on which a movable mouth part 3 of the nozzle is mounted axially movable. The fixed part 1 is provided with a line 4 for a pressure fluid urn, which continues through a cavity 5 in the holder via an elastic line 6 to an outlet opening 7 in the mouth part 3.

Från hålrmnnet 5 leder en ledning 8 via en kmbinerad regler- och luftnings- ventil 9 till en icke visad vakuumkälla resp. atmosfären.From the cavity 5 a line 8 leads via a combined control and venting valve 9 to a vacuum source (not shown) resp. the atmosphere.

Vid en fast kant försedd med en gunmiring 10 hos den fasta delen l är ett antal genomgående hål ll anordnade runt hylsan 2. Över mynningsdelen 3 är ett objekt i form av en kondom 13, som skall täthetsprovas, trädd förbi den fasta gunndringen 10 och ett stycke in på den fasta delen l.At a fixed edge provided with a gun ring 10 of the fixed part 1, a number of through holes 11 are arranged around the sleeve 2. Above the mouth part 3 is an object in the form of a condom 13, which is to be leak tested, stepped past the fixed gun ring 10 and a piece on the fixed part l.

När ventilen 9 öppnas uppstår undertryck i hålrunmet 5, varvid en ringformig del l3a av kondomen sugs in i ett ringformigt spår 14 mellan gunndringen 10 och en kant 12 hos den rörliga delen 3, och vid ett ökande undertryck sugs den rörliga delen 3 in mot den fasta delen l, så att den insugna delen l3a av kondomen kläms fast mot gunndringen 10.When the valve 9 is opened, negative pressure arises in the cavity 5, whereby an annular part 13a of the condom is sucked into an annular groove 14 between the mouth ring 10 and an edge 12 of the movable part 3, and with an increasing negative pressure the movable part 3 is sucked into the the fixed part 1, so that the sucked-in part 13a of the condom is clamped against the mandrel 10.

Uppblåsning av kondomen 13 kan därefter ske för provning av dess täthet eller hållfasthet. Därefter stängs ventilen 9 och luftas hålrunmæt 5 till atmosfären, så att kondcnen, eventuellt med hjälp av tryckfluidet, kan föras av från hållaren sedan fasthållningen av delen l3a upphört.The condom 13 can then be inflated to test its tightness or strength. Thereafter, the valve 9 is closed and the cavity 5 is vented to the atmosphere so that the condenser, possibly by means of the pressure fluid, can be removed from the holder after the holding of the part 13a has ceased.

Uppfinningen är självfallet inte begränsad till den här visade och beskrivna, som exempel valda utföringsformen, utan kan modifieras på åtskilliga sätt incn ramen för den i patentkraven definierade uppfinningen.The invention is of course not limited to the embodiment shown and described here as an example, but can be modified in several ways within the scope of the invention defined in the claims.

Sålunda kan man avvara rörligheten hos munstyckets mynningsdel om fasthållningen medelst undertycket i spåret 14 i något fall skulle vara tillfyllest. Även den elastiska ringen 10 kan i vissa fall undvaras om spårets 14 båda kanter görs avrundade.Thus, the mobility of the mouth part of the nozzle can be dispensed with if the holding by means of the underpressure in the groove 14 in any case would be most complete. The elastic ring 10 can also be dispensed with in some cases if both edges of the groove 14 are made rounded.

O_O“O-OO_O “O-O

Claims

513 242 PATENT REQUIREMENTS

A holder for holding an elastic, container-like object (13), for example a condom or rubber or plastic glove, comprising a cylindrical nozzle (1-3), on which the object is intended to be threaded over the nozzle part (3), and a line (4, 6, 7) opening into the mouth part for a pressure fluid, through which the object can be filled with the pressure fluid, characterized in that the nozzle is formed with a cavity connected to a vacuum line (8), via a control valve (9). 5) and an annular groove (14) located on the outside of the nozzle, in the bottom of which openings (11) are arranged communicating with said cavity (5) for suction into the groove and holding an annular part (13a) of the object.

Holder according to claim 1, characterized in that the mouth part (3) of the nozzle up to said groove (14) is mounted axially displaceable on a fixed part (1,5) of the nozzle, and that said groove (14) has an edge ( 12) on the movable part (3) of the nozzle, which is movable in the direction of an edge (10) of the fixed part (1) of the nozzle under the influence of a negative pressure in said cavity (5).

Holder according to claim 2, characterized in that the fixed edge is provided with an elastic ring (10), against which the edge (12) of the axially movable part (3) of the nozzle is movable under the influence of the underpressure in said cavity ( 5).

Holder according to one of Claims 2 to 3, characterized in that an elastic conduit (6) for the pressure fluid serving as a return spring is arranged between the movable mouth part (3) of the nozzle and the fixed part (1) of the nozzle.