CH286782A - Tube valve. - Google Patents

Description

Valve for inner tube. The subject of the present invention is a valve for an air chamber, comprising a tubular valve body, the drilling of which has a part constituting a sage located between two eylindrical parts of different diameters, characterized in that it comprises a mobile valve member which is located at least partly in the eylindrical part of larger diameter of the borehole and which is arranged to cooperate with said seat, a ring fixed in the cylindrical part of larger diameter, a spring resting by one of its ends on said ring and by Fazüre extremity on the mobile valve member in v-Lie to press it on said sAge, and a mobile 616ment arranged in the eylindrical part <B>de</ B> smallest diameter of the borehole and making, in the rest position, projecting out of this last part of the borehole, and in that said movable kAment is integral with said valve member.

The appended drawing represents, <B>ä</B> by way of example, an embodiment of the valve which is the subject of the present invention.

The only Tigure is a longitudinal section.

The valve represented comprises a tubular valve body 21 provided <B>ä</B> at one end of its ends with an annular flange 22 and having an external thread <B>23</B> over almost its entire length. Like the known valves, the valve represented here is attached <B>ä</B> to a 24 air chamber <B>A</B> by means of a washer <B>25</B> and cVan ekrou < B>ä</B> hexagonal <B>26</B> that Pon screws on the tubular body 21. Cel-Lii-ei presents <B>ä</B> its end, 6 61oign6e of the flange 22 a thread outer diameter 23a whose outer diameter does not exceed the inner diameter of the thread <B>23,</B> so as <B>ä</B> to allow the passage of Fkrou <B>26.</B> A cap <B>27</B> can be screwed onto this part of the body 21. It rests against a conical part <B>28.</B>

The drilling of the tubular body 21 comprises a part <B>A</B> frustoconical wall--you located between two cylindrical parts <B>30</B> and <B>31</B> of different diameters and constituting a sage <B>29.</B> A ring <B>32</B> is driven into the eylindrical part <B>30</B> of larger diameter. It supports one of the ends of a spring <B>ä</B> coil <B>33</B> whose other end presses on -an #shoulder 34a that RTI ID="0001.0273" WI="13" HE= "4" LX="1410" LY="1541"> has a movable valve member 34 located at least partly in this part <B>30</B> and provided with an annular sealing gasket <B >35</B> made of eaolite synthetic hoe, for example. The valve member 34, part of which is this lining, is normally supported by the effect of the spring <B>33</B> on the wise arm <B>29.</B> It is easy to see that the valve closes automatically.

The drilling of the tubular body 21 tightens <B>ä</B> its adiacent # end <B>A</B> the eylindrical part of smaller diameter <B>31</B> and here has a cylindrical wall <B>36</B> of an even smaller diameter than that of part <B>31.</B> This wall <B>36</B> serves as a guide <B> ä</B> the head 37a of a mobile 916ment<B>37</B> which comprises, in o-Liter, a rod, a #shoulder <B>37b ä</B> ijif6rieiire face 37c and -a eylindrical extension <B>37d</B> which is driven into a blind hole 34b presented by the movable valve member 34. The movable element <B>37</B> is therefore integral with the valve member 34. The seal gasket <B>35</B> is clamped axially between the face 37c of the shoulder <B>37b</B> and -a face 34c that presents the gpa-Liment 34a.

In the rest position, shown in the drawing, in which the detanehgit# gasket <B>35</B> is resting on the Seat <B>29,</B> the head 37a protrudes out <U>of</B> U> drilling. By exerting pressure with the finger of one hand on this tile, it can be pushed into the borehole, which causes the trimming <B>35</B> to lift from its seat <B>29,</B> done the open--Lre of the valve. As the rod 37a is chamfered <B>ä</B> its end is peripheral 37e, this facilitates the escape of air between it and the wall <B>36.</B>

Claims (2)

CLAIM: Valve for <B>ä</B> air shaft, comprising - Him tubular valve body whose bore has a part eolistithing a seat located between two cylindrical parts of different diameters, earaet gray in ee <B>- </B> that it comprises a mobile valve member which is located at least partly in the eylindrical part of the largest diameter of the borehole and which is arranged to cooperate with said seat, -a ring fixed in the cylindrical part of larger diameter, a spring sapp-Liyant by one of its ends on said bagne and by the other extrAmitg on the movable valve organ in order to press it on said sPge, and a movable 616ment arranged in the e # part - the smaller diamUre of the drill ei making, in the rest position, projecting out of this clerni##re part of the drill, and in ee that said mobile AlAment is integral with said valve orgaiie. SUB-CLAIMS.- 1. Valve according to the claim, earaet & risk in that said valve member con)- takes an annular seal of #taiieh#it6 intended <B>ä</B> to cooperate with said Seat, and in ee that this trim is serr6e axially between two #paulements, one of these 6paulements gtant prgvu on said valve member and the other 6pa-Lileinent on said mobile 616ment. 2. Valve according to the so-tis-claim <B> 1,</B> ea- raet6rise'e in -ee that said #6l#ment mobile comprises an eylindrical extension ehass# in a borehole of said valve member . <B>3.</B> Valve according to claim, earact & risge in that said mobile glgment prAsente a tAte ageneie and. arranged to be guided in said borehole.