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DE802297C - Roll skin support - Google Patents

Roll skin support

Info

Publication number
DE802297C
DE802297C DE1948P0025507 DEP0025507D DE802297C DE 802297 C DE802297 C DE 802297C DE 1948P0025507 DE1948P0025507 DE 1948P0025507 DE P0025507 D DEP0025507 D DE P0025507D DE 802297 C DE802297 C DE 802297C
Authority
DE
Germany
Prior art keywords
skin support
skin
support
roll skin
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1948P0025507
Other languages
German (de)
Inventor
Ernst Dr Moeller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse GmbH
Original Assignee
Knorr Bremse GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knorr Bremse GmbH filed Critical Knorr Bremse GmbH
Priority to DE1948P0025507 priority Critical patent/DE802297C/en
Application granted granted Critical
Publication of DE802297C publication Critical patent/DE802297C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J3/00Diaphragms; Bellows; Bellows pistons
    • F16J3/06Bellows pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)
  • Knitting Of Fabric (AREA)

Description

Es ist bereits vorgeschlagen worden,- eine Wälzhaut, die in ausgestülptem Zustand die Form eines hohlen Kegelstumpfes hat, dadurch für größere Druckunterschiede brauchbar zu machen, daß man ihren z. B. aus Gummi bestehenden Körper durch eine Stützhaut aus Leder o. dgl. versteift. Solange man nun derartig abgestützte konische Körper auf konische Ablaufflächen abrollen läßt, deren Konizität der des Gummikörpers selbst entspricht, rollt die Stützhaut ohne Schwierigkeiten mit der Gummihaut ab. Sobald jedoch solche Hohlkörper, zwischen zwei koaxialen Zylindern abrollen (Abb. i), entstehen Sprannungsdifferenzen zwischen der Gummihaut i und der Lederhaut 2. Diese Spannungen werden dadurch hervorgerufen, daß die Gummihaut beim Übergang vom großen Durchmesser auf den kleinen Durchmesser in sich länger werden muß, da die Gesamtoberfläche ja im wesentlichen konstant bleibt. Die Stützhäute aus Leder oder festen Geweben lassen aber Verlängerungen nicht zu, da sie andernfalls ihre Aufgabe als Träger nicht erfüllen können. Infolgedessen half man sich damit, daß man die Stützhaut etwas reichlicher bemaß und es der Wälzhaut überließ, sich durch ihre Dehnung unter Druck anzupassen. Eine solche Methode ist aber nur für relativ geringe Hublängen durchzuführen.It has already been suggested - a rolling skin that is in everted State has the shape of a hollow truncated cone, therefore for greater pressure differences to make useful that one of their z. B. made of rubber body by a Support skin made of leather or the like stiffened. As long as you now have such a supported conical Body can roll on conical drainage surfaces, the conicity of which is that of the rubber body itself, the support skin rolls off with the rubber skin without difficulty. However, as soon as such hollow bodies roll between two coaxial cylinders (Fig. i), there are differences in tension between the rubber skin i and the dermis 2. These tensions are caused by the fact that the rubber skin at the transition from large diameter to the small diameter in itself must be longer, since the Total surface remains essentially constant. The support skins made of leather or However, solid fabrics do not allow extensions, otherwise they will do their job as a carrier can not meet. As a result, one helped oneself by having the The support skin was dimensioned a little more generously and left it to the rolling skin to get through its Adjust stretching under pressure. However, such a method is only available for relatively small groups Perform stroke lengths.

Es ist Aufgabe der vorliegenden Erfindung, diese Nachteile der bekannten Stützmittel zu vermeiden. Dies wird erfindungsgemäß dadurch erreicht, daß als 'Stützhaut ein schlauchartiges Gewebe von solehem-Aufbau verwendet wird, daß es sich bei VergrÖßerurigen oder Verkleinerungen seines Durchmessers verkürzt bzw. verlängert. Ein solches Gewebe stellt z. B. das rautenförmige Schlauchgewebe nach Abb. 2 dar,r@4essen Form i sich unter Änderung der RautenforM-Aowohl in die Gestalt 2 wie auch in die Gestalt 3 bfyep läßt.It is the object of the present invention to address these disadvantages of the known Avoid proppants. This is achieved according to the invention in that as a 'support skin a tubular fabric of such construction is used that it increases in size or reductions in its diameter are shortened or lengthened. Such a fabric represents z. B. the diamond-shaped tubular fabric according to Fig. 2, r @ 4essen Form i itself while changing the diamond shape A, both in shape 2 and in shape 3 bfyep lets.

Es wäre auch möglich, gei sse Wirkarten mit denselben Eigenschaften anzuw#n."Diese haben nur den Nachteil, daß sie aus einerwengigen fortlaufenden Faden gewirkt sind, so däf bei dem 'Reißen eines Fädens Laufmaschen entstehe l@; geklöppelte Gewebe aus einer Vielzahl von Fäden dagegen unterliegen dieser Gefahr nicht.It would also be possible to use these types of knitting with the same properties to apply. "The only disadvantage of these is that they consist of a few continuous threads are knitted, then if a thread breaks, run stitches are produced; bobbin lace In contrast, fabrics made from a large number of threads are not subject to this risk.

Claims (2)

PATENTANSPRÜCHE: i. Wälzhaut-Abstützung, dadurch gekennzeichnet, daß die Abstützung aus einem schlauchartigen Gewebe von solchem Aufbau besteht, daß sie sich bei Vergrößerungen oder Verkleinerungen ihres Durchmessers verkürzt bzw. verlängert. PATENT CLAIMS: i. Roller skin support, characterized in that the support consists of a hose-like fabric of such a structure that it is shortened or lengthened when its diameter is enlarged or reduced. 2. Wälzhaut-Abstützung nach Anspruch i, dadurch gekennzeichnet, daß dieselbe aus einem rautenförmig geklöppelten Gewebe besteht.2. rolling skin support according to claim i, characterized in that that it consists of a lozenge-shaped woven fabric.
DE1948P0025507 1948-12-19 1948-12-19 Roll skin support Expired DE802297C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1948P0025507 DE802297C (en) 1948-12-19 1948-12-19 Roll skin support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1948P0025507 DE802297C (en) 1948-12-19 1948-12-19 Roll skin support

Publications (1)

Publication Number Publication Date
DE802297C true DE802297C (en) 1951-02-08

Family

ID=577874

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1948P0025507 Expired DE802297C (en) 1948-12-19 1948-12-19 Roll skin support

Country Status (1)

Country Link
DE (1) DE802297C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072029B (en) * 1955-12-12 1959-12-24
DE1151154B (en) * 1960-04-11 1963-07-04 Aeroquip Ag Hydraulic shock absorber
DE1262704B (en) * 1964-12-12 1968-03-07 Philips Nv Rolling membrane that can be used as a seal between two coaxial, mutually movable bodies
DE3126215A1 (en) * 1981-07-03 1983-03-10 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Pot-type diaphragm
US4573693A (en) * 1984-04-26 1986-03-04 Toyoda Gosei Co., Ltd. Dust boot with multiple layer construction of bellows

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072029B (en) * 1955-12-12 1959-12-24
DE1151154B (en) * 1960-04-11 1963-07-04 Aeroquip Ag Hydraulic shock absorber
DE1262704B (en) * 1964-12-12 1968-03-07 Philips Nv Rolling membrane that can be used as a seal between two coaxial, mutually movable bodies
DE3126215A1 (en) * 1981-07-03 1983-03-10 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Pot-type diaphragm
US4573693A (en) * 1984-04-26 1986-03-04 Toyoda Gosei Co., Ltd. Dust boot with multiple layer construction of bellows

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