DE428069C - Process for the production of sharpened hose ends from air hoses - Google Patents

Process for the production of sharpened hose ends from air hoses

Info

Publication number
DE428069C
DE428069C DED47425D DED0047425D DE428069C DE 428069 C DE428069 C DE 428069C DE D47425 D DED47425 D DE D47425D DE D0047425 D DED0047425 D DE D0047425D DE 428069 C DE428069 C DE 428069C
Authority
DE
Germany
Prior art keywords
hose
mandrel
sharpened
hose ends
air hoses
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
DED47425D
Other languages
German (de)
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Application granted granted Critical
Publication of DE428069C publication Critical patent/DE428069C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B29C66/52211—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other for making endless tubular articles, e.g. endless inner tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0222—Mechanical pre-treatments, e.g. reshaping without removal of material, e.g. cleaning by air blowing or using brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241—Cutting, e.g. by using waterjets, or sawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1226—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/021—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing of profiled articles, e.g. hollow or tubular articles, beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/24—Endless tubes, e.g. inner tubes for pneumatic tyres
    • B29L2023/245—Inner tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Tyre Moulding (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Herstellung von Luftschläuchen mit zugeschärften oder abgeschrägten Enden, deren Anwendung zunächst das Vulkanisieren der Schlauchenden aufeinander erleichtert und eine besonders gute Fuge bei der Verwendung dieser Enden ergibt.The invention relates to a device and a method for producing air hoses with sharpened or beveled ends, their application initially the vulcanization of the hose ends on each other facilitated and results in a particularly good joint when using these ends.

Die neue Vorrichtung besteht in der Hauptsache aus zwei elastischen Ringen oder Armschellen aus Metall, mit welchen die Enden des Luftschlauchs auf einem Dorn festgehalten und abgedichtet werden. Das neue Verfahren besteht darin, daß diese Ringe so geformt sind, daß sie durch ihren Druck auf der Außenseite des Schlauches Vertiefungen hervorrufen, die nach der Oberfläche der Schlauchwand flach auslaufen. Schneidet man das Schlauchende in der Mitte dieser Vertiefung ab, dann erhält man einen zugeschärften Rand. Zur x\usführung dieses Verfahrens verwendet man am vorteilhaftesten als Armschelle einen Ring aus Spiraldraht, der über eine zu diesem Zweck gebaute Vorrichtung zum Überstreifen des Ringes auf das Schlauchende auf dieses aufgebracht wird.The new device mainly consists of two elastic rings or arm cuffs made of metal, with which the ends of the air hose are held on a mandrel and sealed. The new procedure consists in the fact that these rings are shaped in such a way that, by virtue of their pressure, they form indentations on the outside of the hose which run out flat towards the surface of the hose wall. Cuts if you remove the end of the hose in the middle of this recess, you get a sharpened one Edge. To perform this procedure, it is best to use as Armcuff a ring made of spiral wire, which has a device built for this purpose is applied to the end of the hose for slipping over the ring.

Abb. ι zeigt in Ansicht eine Ausführungsart unter Anwendung der Eigentümlichkeiten der Erfindung und einen bestimmten Zustand bei dem Verfahren der Herstellung.Fig. Ι shows a view of an embodiment using the peculiarities of the invention and a particular state in the process of manufacture.

Abb. 2 ist eine vergrößerte Teilansicht nach der Linie 2-2 der Abb. 1. Abb. 3 ist ein Querschnitt nach der Linie 3-3 der Abb. 2.Figure 2 is an enlarged fragmentary view taken on line 2-2 of Figure 1. Figure 3 is a Cross section along the line 3-3 of Fig. 2.

Abb. 4 ist ein vergrößerter Schnitt eines Teiles des Schlauches, nachdem das eine Ende davon zurechtgestutzt worden ist. Abb. 6 ist eine perspektivische Ansicht, das Ende eines Schlauches zeigend, das geriffelt worden ist, nach dem verbesserten Verfahren mittels der verbesserten Armschelle. Abb. 7 ist ein Teilschnitt, die Enden des Schlauches, zuerst ineinandergeschoben, zeigend. Abb. 8 ist ein Längsschnitt durch eine Verbindung, wo die geriffelten Schlauchenden verbunden sind.Figure 4 is an enlarged section of a portion of the hose after one end of which has been trimmed. Figure 6 is a perspective view of the end of a Showing hose that has been corrugated according to the improved method by means of the improved cuff. Fig. 7 is a partial section, the ends of the hose, first pushed together, pointing. Fig. 8 is a longitudinal section through a joint where the corrugated hose ends are connected.

In den Abbildungen bedeutet 10 einen Dorn, auf dem ein unvulkanisierter Gummischlauch 12 angebracht wird, der später vulkanisiert wird. Soweit die Erfindung in Be ixacht kommt, kann der Schlauch auf den Dorn in irgendeiner passenden Weise aufgebracht sein.In the figures, 10 means a mandrel on which an unvulcanized rubber hose 12 is attached, which is later vulcanized. As far as the invention in Be ixacht comes, the hose can be attached to the mandrel in any convenient way be.

Um das Eintreten von Dampf, Luft oder Wasser zwischen die Wandungen des Schlauches 12 und den Dorn 10 während des VuI-kanisierens zu verhindern, werden vorzugsweise elastische Armschellen 14 und 16 über den Schlauchenden befestigt. Diese Armschellen werden, wie es deutlich in Abb. 3 zu sehen ist, aus Spiralfedern gebildet, deren Enden verbunden sind, um einen in sich fortlaufend geschlossenen Federring oder Armschelle herzustellen. Der Durchmesser der Armschelle ist derart, daß zur Anbringung derselben an dem Dorn 10 die Windungen 20 der Feder gedehnt werden müssen. Es istAbout the entry of steam, air or water between the walls of the hose 12 and mandrel 10 during VuI-canizing To prevent, elastic armcuffs 14 and 16 are preferably over attached to the hose ends. These armcuffs are, as can be clearly seen in Fig. 3, too is formed from coil springs, the ends of which are connected to one continuous in itself to produce closed spring ring or arm cuff. The diameter of the arm cuff is such that it can be attached same on the mandrel 10, the turns 20 of the spring must be stretched. It is

augenscheinlich, daß so ein im wesentlichen gleichförmiger Druck auf alle Teile der Schlauchwandung ausgeübt wird, und daß auf diese Weise der Schlauch mit dem Dorn xo in fester Berührung gehalten wird, und daß diese Armschelle das Eindringen von Dampf, Luft oder Wasser zwischen den Schlauchwandungen und dem Dorn, wenn der Schlauch vulkanisiert wird, verhindert. Außerdem werden die Windungen 20 der Armschelie einen genügenden Druck auf den unvulkanisierten Gummischlauch ausüben, um eine Reihe von Vertiefungen 22 auf der Schlauchwanduag einzupressen. Infolge der runden Form der Federwindungen werden die \^ertiefungen von Punkt 24 nach den Punkten 26 und 28 auslaufen (s. Abb. 4). Die Schlauchwandung wird also durch den Federdruck, der durch die Armschelle ausgeübt wird, geriffelt, wobei die Rippen 30 zwischen den angrenzenden Vertiefungen stehenbleiben.evidently that such a substantially uniform pressure on all parts of the Hose wall is exercised, and that in this way the hose with the mandrel xo is held in firm contact, and that this armcuff prevents the penetration of steam, Prevents air or water between the hose walls and the mandrel when the hose is vulcanized. Also be the turns 20 of the armrests provide sufficient pressure on the unvulcanized Apply rubber hose to a series of indentations 22 on the hose wall press in. As a result of the round shape of the spring coils, the depressions become run out from point 24 to points 26 and 28 (see Fig. 4). The hose wall is therefore fluted by the spring pressure exerted by the arm cuff, whereby the ribs 30 remain between the adjacent depressions.

Der normale oder natürliche Durchmesser einer jeden Armschelle ist geringer als der Durchmesser des Dornes 10. Um die Veras bindung der Armschelle mit dem Dorn 10 zu erleichtern, ist ein Stöpsel 32 mit einem Ansatz 34 vorgesehen von geeigneter Form, um am Ende des Dornes in diesen eingesteckt zu werden (Abb. 2). Dieser Stöpsel ist verjüngt und läßt die federnde Annschelle über sich hinwegschieben und infolge des sich vergrößernden Durchmessers " des Stöpsels allmählich ausdehnen. Der Stöpsel ist mit einer Anzahl von Führungsstreifen 36 versehen, deren Enden 38 genügend nach außen abstehen, um das Ende 40 des Schlauches 12 zu überlappen, so daß die Armschelle leicht über diese äußeren Enden des Schlauches geschoben werden kann.The normal or natural diameter of each armcuff is less than that Diameter of the mandrel 10. To the Veras binding of the arm cuff with the mandrel 10 too To facilitate, a plug 32 is provided with a lug 34 of suitable shape to to be inserted into the end of the mandrel (Fig. 2). This plug is tapered and allows the resilient clamp to be pushed over and as a result of the enlarging Diameter "of the stopper. The stopper is with a Number of guide strips 36 provided, the ends 38 of which protrude sufficiently to the outside, to overlap the end 40 of the hose 12 so that the arm cuff easily over these outer ends of the hose can be pushed.

Bei dem Weitergang der Herstellung werden die ,Schläuche vulkanisiert, während sie 1 auf dem Dorn 10 sitzen und die Armschellen ; 14 und 16 fest verbunden bleiben. Nach dem Vulkanisieren wird die Armschelle 14 von j dem Ende des Schlauches auf das über- . stehende Dornende geschoben, wie es mittels gestrichelter Linien in Abb. 1 gezeigt ist, und , die Armschelle 16 und der Stöpsel 32 werden : entfernt und der Schlauch von dem Dorn weg- [ gezogen. Die Schlauchenden werden darauf abgeschnitten, wobei die Außenkante an jedem Schlauchende das durch die gestrichelte ; Linie .Y-X in Abb. 4 kenntlich gemachte Mittel des infolge der Armschellen geriffelten Teiles bildet. Xach dem Abschneiden an dieser Mittellinie X-X hat der Schlauch das Aussehen wie in Abb. 5, daß nämlich die Wandung von Punkt 26 bis zum Punkt 24 zugeschärft ist und der Schlauch eine geriffelte Randzone hat (Abb. 6).As manufacturing proceeds, the hoses are vulcanized while they are 1 sitting on the mandrel 10 and the armcuffs ; 14 and 16 remain firmly connected. After vulcanization, the arm cuff 14 is from the end of the hose to the over . The standing mandrel end is pushed, as shown by dashed lines in Fig. 1, and the arm cuff 16 and plug 32 are: removed and the hose pulled away from the mandrel. The hose ends are then cut off, the outer edge at each hose end being the one indicated by the dashed line; Line .YX in Fig. 4 forms the mean of the part that is corrugated as a result of the armcuffs. After cutting off at this center line XX , the hose looks like that in Fig. 5, namely that the wall from point 26 to point 24 is sharpened and the hose has a corrugated edge zone (Fig. 6).

Wenn der Schlauch von dem Dorn weggezogen wird, wird gewöhnlich, aber das ist nicht unbedingt nötig, die Innenseite nach außen gestülpt; dadurch werden die geriffelten Ränder auf die Innenseite des Schlauches e5 gebracht (Abb. 7). Die geriffelten Schlauchenden werden ineinandergesteckt, verkittet und vulkanisiert, um eine glatte Verbindung herzustellen. Dies kann leicht ausgeführt werden, da die Enden des Schlauches zügeschärft sind. Durch die Reihe der Riffelnuten auf der zugeschärften Randzone wird die Ouerschnittsfläche verringert und so eine Art von schräger Überlappung herstellbar.When the tube is pulled away from the mandrel it is usually, but not strictly necessary, turned inside out; this brings the corrugated edges to the inside of the hose e 5 (Fig. 7). The corrugated hose ends are nested, cemented and vulcanized to create a smooth connection. This can be done easily because the ends of the hose are sharpened. The row of corrugated grooves on the sharpened edge zone reduces the cross-sectional area and thus a type of inclined overlap can be produced.

Durch Anwendung von Druck und Wärme '5 können die geriffelten Ränder zwischen den verjüngten Vertiefungen gänzlich beseitigt werden, wenn es zur Bildung einer glatten Verbindung gewünscht wird. Es ist durchaus unnötig, diese Rippen der Riffelung auf Sa der Innenseite des Schlauches zu entfernen, da sie nicht sichtbar und auch nicht von Bedeutung sind; denn sie kommen nicht mit irgendeinem anderen Teil in Berührung.By applying pressure and heat '5 the corrugated edges between the tapered depressions can be completely eliminated when it is desired to form a smooth joint. It is quite unnecessary to remove these ribs of corrugation on Sa the inside of the hose, since they are not visible and also of no importance; because they don't come with me any other part in contact.

Die geriffelten Ränder auf dem überlappenden Teil 42 werden bei der Vulkanisierung entfernt.The corrugated edges on the overlapping portion 42 become when vulcanized removed.

Die äußeren Schlauchenden können entweder abgestützt werden, solange noch der Schlauch auf dem Dorn sich befindet oder c0 nachdem derselbe davon entfernt worden ist.The outer hose ends can either be supported while the hose is still on the mandrel or c 0 after it has been removed therefrom.

Claims (2)

Patent-Ansprüche-.Patent claims. 1. Verfahren zur Herstellung zügeschärfter Schlauchenden von Luftschläuchen unter Verwendung von elastischen Ringen, dadurch gekennzeichnet, Λζ'Δ elastische Armschellen oder Ringe (14,16) so gestaltet sind und mit so starkem Druck :3ο aufgelegt werden, daß sie auf der Schlauehwand flach auslaufende Vertiefungen (24) verursachen, in deren Mitte die Schlauchenden abgeschnitten werden, um flach auf- und ineinander zusammengefügt zu werden.1. A method for producing zügeschärfter hose ends of air hoses using elastic rings, characterized in that Λζ'Δ elastic armcuffs or rings (14,16) are designed and with such strong pressure: 3ο are placed that they taper off flat on the Schlauehwand Cause depressions (24), in the middle of which the hose ends are cut off in order to be flat on top of and joined together. 2. Vorrichtung zur Ausführung des Verfahrens nach Anspruch 1, die aus einem auf das Dornende aufgesteckten konischen Stöpsel (32) mit elastischen :-.o Führungsstreifen (36) besteht, wobei diese Streifen (36) den Rand des auf dem Dorn (10) sitzenden Schlauches (12) überragen, so daß der Spiralring (14, 16; leicht über den Schlauchrand gezogen werden kann.2. Apparatus for carrying out the method according to claim 1, which consists of a conical plug (32) fitted onto the end of the mandrel with elastic : -.o guide strips (36), these strips (36) the edge of the on the mandrel (10) the seated hose (12) protrude so that the spiral ring (14, 16; can be easily pulled over the edge of the hose. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DED47425D 1924-04-02 1925-03-03 Process for the production of sharpened hose ends from air hoses Expired DE428069C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US231828XA 1924-04-02 1924-04-02

Publications (1)

Publication Number Publication Date
DE428069C true DE428069C (en) 1926-04-24

Family

ID=21813559

Family Applications (1)

Application Number Title Priority Date Filing Date
DED47425D Expired DE428069C (en) 1924-04-02 1925-03-03 Process for the production of sharpened hose ends from air hoses

Country Status (3)

Country Link
DE (1) DE428069C (en)
FR (1) FR593086A (en)
GB (1) GB231828A (en)

Also Published As

Publication number Publication date
FR593086A (en) 1925-08-17
GB231828A (en) 1926-01-14

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