DE19512676A1 - Hand tool thermal spot-bonding material for elastomeric roofing sheet - Google Patents

Hand tool thermal spot-bonding material for elastomeric roofing sheet

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Publication number
DE19512676A1
DE19512676A1 DE19512676A DE19512676A DE19512676A1 DE 19512676 A1 DE19512676 A1 DE 19512676A1 DE 19512676 A DE19512676 A DE 19512676A DE 19512676 A DE19512676 A DE 19512676A DE 19512676 A1 DE19512676 A1 DE 19512676A1
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DE
Germany
Prior art keywords
frame
lever mechanism
hand
handheld device
handle
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.)
Withdrawn
Application number
DE19512676A
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German (de)
Inventor
Roger Uhrig
Klaus Dingeldein
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Individual
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Individual
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Publication date
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Priority to DE19512676A priority Critical patent/DE19512676A1/en
Publication of DE19512676A1 publication Critical patent/DE19512676A1/en
Withdrawn legal-status Critical Current

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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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0266—Local curing
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7832—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the overlap between the parts to be joined, e.g. the overlap between sheets, plates or web-like materials
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8227—Transmission mechanisms using springs
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D15/00—Apparatus or tools for roof working
    • E04D15/04—Apparatus or tools for roof working for roof coverings comprising slabs, sheets or flexible material
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8244—Actuating mechanisms magnetically driven
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8248—Pressure application by weights
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
    • B29L2031/108—Roofs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The hand tool for spot-bonding or vulcanising elastomeric sheet, e.g. rolled wares used for flat roof covering or tarpaulin comprises: (i) an intermediate seam band included between the sheets; and (ii) two electrically-heated, pref. round profile heads (1) whose dia. is smaller than the width of the seam band applying pressure and heat for a set duration, and pressed together by springs (2) in a self-opening frame (3). The force between the heads (1) is obtained by hand operation of the lever mechanism fixed to the frame, via the handle (4).

Description

Das Handgerät wird bei der Planenanfertigung aus Rollenmaterial verwendet (vorzugsweise Flachdach- und/oder Abdeckplanen).The handheld device is used for tarpaulin production from roll material (preferably flat roof and / or tarpaulins).

Bei der Planenanfertigung werden zwei Elastomerbahnen so gelegt, daß sie sich wenige Zentimeter überlappen. Dieser Nahtbereich wird anschließend durch Aufbringung von Druck und Temperatur über eine bestimmte Zeitdauer (Hot- Bonding-Prozeß, ca. 3-6 bar, ca. 180-230°C, ca. 60-120 s) in einer Heizpresse so bearbeitet, daß die Elastomerbahnen miteinander vulkanisieren. Vorzugsweise wird zwischen die beiden Bahnen ein Nahtband eingelegt, welches mit vulkani­ siert wird. Hierbei zeigt es sich, daß sich mit den bisherigen Maschinen (vorzugsweise Pressen mit beheizten Balken) nur ebene Planen einigermaßen problemlos fertigen lassen. Sobald jedoch nicht ebene geometrische Sonder­ formen (Ecken, Lichtkuppel- und Kaminmanschetten, Rundungen, Behälter, usw.) ausgeführt und/oder Formteile in die Plane eingebondet werden sollen, ist es von Nachteil, wenn die zu verbindenden Zuschnitte nicht vorfixiert werden können, bevor sie mit einer Heizpresse endgültig verbunden werden.When tarpaulin production, two elastomer sheets are placed so that they are overlap a few centimeters. This seam area is then through Application of pressure and temperature over a certain period of time (hot Bonding process, approx. 3-6 bar, approx. 180-230 ° C, approx. 60-120 s) in a heating press processed so that the elastomer sheets vulcanize together. Preferably a seam tape is inserted between the two sheets, which is covered with vulkani is settled. This shows that the previous machines (preferably presses with heated beams) only some level tarpaulin can be easily manufactured. However, as soon as not even geometric special shapes (corners, skylight domes and chimney sleeves, curves, containers, etc.) and / or molded parts are to be bonded into the tarpaulin it is disadvantageous if the blanks to be joined are not pre-fixed can be finally connected to a heating press.

Bislang werden die zu verbindenden Zuschnitte durch Festhalten mit den Händen und/oder mit Gewichten und/oder mit Magneten auf der Heizpresse fixiert. Die Nachteile dieser Verfahren bestehen darin, daß sie gegen Verschie­ ben der Zuschnitte empfindlich sind und eventuell eine zweite Person neben dem Bediener der Heizpresse zum Fixieren benötigt wird.So far, the blanks to be joined have been held by the Hands and / or with weights and / or with magnets on the heating press fixed. The disadvantages of these methods are that they are against diff the cuts are sensitive and possibly a second person next to the Operator of the heating press is required for fixing.

Ebenso ist es bei Verwendung von Nahtband erforderlich, daß dieses und die Zuschnitte auf dem heißen Heizbalken der Presse positioniert werden, was bei bestimmten Sonderformen nahezu unmöglich ist. Dabei arbeitet man mit den Händen im unmittelbaren Gefahrenbereich der Heizpresse, in welchem eine erhebliche Verbrennungs- und/oder Quetschgefahr besteht.It is also necessary when using seam tape that this and that Blanks can be positioned on the hot heating beam of the press, which at certain special forms is almost impossible. You work with the Hands in the immediate danger area of the heating press, in which one there is a significant risk of burns and / or crushing.

Die Aufgabe des Handgerätes ist es, eine Vorfixierung der Zuschnitte und des Nahtbandes außerhalb des Gefahrenbereichs der Heizpresse zu ermöglichen. Diese Vorfixierung findet unter Anwendung des Hot-Bonding-Prozesses nun unmittelbar im Nahtbereich statt und verhindert zuverlässig ein Verschieben der Zuschnitte. Dadurch wird auch das Nahtband fixiert, welches vorher nur lose zwischen den Zuschnitten lag.The task of the handheld device is to pre-fix the blanks and the To enable seam tape outside the danger zone of the heating press. This pre-fixation now takes place using the hot-bonding process immediately in the seam area and reliably prevents the Blanks. This also fixes the seam tape, which was previously only loose lay between the blanks.

Das Handgerät ist im wesentlichen als Zange ausgeführt. Die Aufbringung von Druck und Temperatur geschieht mittels zweier elektrisch betriebenen Heizköpfe (1), vorzugsweise in runder Ausführung mit einem Durchmesser, der kleiner ist als die Breite des Nahtbands, die durch einen in sich beweglichen und durch Feder (2) selbstöffnenden Rahmen (3) aufeinander gepreßt werden. The handheld device is essentially designed as pliers. The pressure and temperature are applied by means of two electrically operated heating heads ( 1 ), preferably in a round design with a diameter that is smaller than the width of the seam band, which is produced by a frame ( 3 ) that is movable and self-opening by spring ( 2 ). be pressed together.

Die Kraft zwischen den beiden Heizköpfen wird erzeugt durch Aufbringen von Handkraft auf einen mit dem Rahmen (3) fest verbundenen Handgriff (4) und auf eine an Rahmen (3) und Handgriff (4) angelenkte Hebelmechanik (5). Das Handgerät zeichnet sich durch eine Einhand-Bedienbarkeit aus, die es erlaubt die andere Hand zum Fixieren der zu bearbeitenden Bahnen zu benutzen.The force between the two heating heads is generated by applying manual force to a handle ( 4 ) firmly connected to the frame ( 3 ) and to a lever mechanism ( 5 ) articulated on the frame ( 3 ) and handle ( 4 ). The hand-held device is characterized by one-hand operability, which allows the other hand to be used to fix the webs to be processed.

Der Freiraum (A) in der Rahmenkonstruktion ermöglicht der freien Hand des Bedieners einen ungehinderten Zugang zu den zu bearbeitenden Zuschnitten (Fig. 1-3).The free space (A) in the frame construction allows the operator's free hand unhindered access to the blanks to be processed ( Fig. 1-3).

Ebenso erlaubt der Freiraum (C), unterhalb der gegenüber der Arbeitsebene (B) erhöhten Griffposition, den Fingern der Bedienhand einen ungehinderten Zugriff auf Handgriff (4) und Hebelmechanik (5) (Fig. 1).Likewise, the free space (C) below the handle position, which is higher than the working level (B), allows the fingers of the operating hand unhindered access to the handle ( 4 ) and lever mechanism ( 5 ) ( FIG. 1).

Das Z-förmige Profil (6), welches den beweglichen mit dem feststehenden Teil des Rahmens (3) verbindet, erlaubt die Durchführung von überlappten und gleichzeitig parallel liegenden Bahnen (1) durch den Rahmen (3) (Fig. 4).The Z-shaped profile ( 6 ), which connects the movable with the fixed part of the frame ( 3 ), allows the passage of overlapped and simultaneously parallel tracks ( 1 ) through the frame ( 3 ) ( Fig. 4).

Das veränderliche Kraft-Weg-Verhältnis der Hebelmechanik (5) läßt ein weites Öffnen des Rahmens (3) zu, ohne daß die Öffnung der bedienenden Hand unergonomisch groß sein muß. Ebenso bewirkt die Hebelmechanik (5), daß bei geschlossenem Rahmen (3) der Prozeßdruck mit vertretbarer Handkraft aufge­ bracht werden kann (Fig. 1).The variable force-displacement ratio of the lever mechanism ( 5 ) allows the frame ( 3 ) to be opened wide without the opening of the operating hand having to be unergonomically large. Likewise, the lever mechanism ( 5 ) that the process pressure can be brought up with reasonable manual force when the frame ( 3 ) is closed ( Fig. 1).

Bei geschlossenem Rahmen (3), kurz bevor die Hebelmechanik (5) ihre Endposi­ tion erreicht, wird die vorgespannte Feder (7) innerhalb der Hebelmechanik (5) ausgelenkt und erzeugt von nun an den Prozeßdruck, der aufgrund der gewählten Geometrie der Hebelmechanik (5) und der Dimensionierung und Vorspannung der Feder (7) weitgehend unabhängig von der Bahnenstärke bleibt. Der Anschlag (10) verhindert zuverlässig einen zu hohen Prozeßdruck durch überhöhte Hand­ kraft, was das Zerquetschen der Vulkanisationsstelle zur Folge haben könnte (Fig. 2, 3).When the frame ( 3 ) is closed, just before the lever mechanism ( 5 ) reaches its end position, the preloaded spring ( 7 ) is deflected within the lever mechanism ( 5 ) and from now on generates the process pressure which, due to the selected geometry of the lever mechanism ( 5 ) and the dimensioning and preload of the spring ( 7 ) remains largely independent of the web thickness. The stop ( 10 ) reliably prevents excessive process pressure due to excessive hand force, which could result in the crushing of the vulcanization point ( Fig. 2, 3).

Die Hebelmechanik (5) steht während des Arbeitsprozesses in ihrer Endposition fest und erfordert somit keine andauernde Bedienkraft (Fig. 3).The lever mechanism ( 5 ) is fixed in its end position during the work process and therefore does not require any continuous operating force ( FIG. 3).

Das Lösen der Hebelmechanik (5) aus der Endposition (= Arbeitsposition) geschieht durch Ziehen mit dem Zeigefinger der Bedienhand an dem Lösehebel (8) in Richtung Handgriff (4). Der Lösehebel (8) trägt im wesentlichen zur Einhand-Bedienbarkeit des Handgeräts bei (Fig. 3).The lever mechanism ( 5 ) is released from the end position (= working position) by pulling the index finger of the operating hand on the release lever ( 8 ) towards the handle ( 4 ). The release lever ( 8 ) contributes essentially to the one-hand operability of the hand-held device ( FIG. 3).

Eine integrierte Zeitmessung, die bei geschlossenem Rahmen (3) automatisch gestartet wird, fordert nach Ablauf des Prozesses den Bediener durch ein opti­ sches und akustisches Warnsignal auf, den Prozeß durch Betätigen des Lösehebels (8) zu beenden. Die Zeitmessung ist mit mehreren vorwählbaren Zeiten ausge­ stattet, die voneinander unabhängig auf verschiedene Prozeßbedingungen (z. B. unterschiedliche Bahnenstärken etc.) eingestellt werden können. An integrated time measurement, which is started automatically when the frame ( 3 ) is closed, prompts the operator with an optical and acoustic warning signal after the process has ended to end the process by actuating the release lever ( 8 ). The time measurement is equipped with several preselectable times, which can be set independently of one another to different process conditions (e.g. different web thicknesses, etc.).

AusführungsbeispielEmbodiment Einbonden eines Rohrformteils in eine ebene PlaneBonding a pipe fitting into a flat tarpaulin

Wenn ein Rohrformteil in eine Plane eingebondet werden soll, so schneidet man in die Plane ein quadratisches Loch, dessen Seitenlänge um zwei Nahtband­ breiten kleiner ist als die Seitenlänge des ebenfalls quadratischen Flansches des Rohrformteils, so daß eine Überlappung entsteht. Das Handgerät erlaubt nun die punktuelle Vorfixierung von vier Nahtbandstücken rings um das Loch, bevor das Rohrformteil wiederum auf dem Nahtband vorfixiert wird. Somit müssen immer nur zwei Teile in Position gebracht werden (Teile im Sinne von zu verbindenden Zuschnitten, Formteilen und Nahtbändern). Da sich die Teile nach der Vorfixie­ rung nicht mehr gegeneinander verschieben können, entfällt auch das am Anfang erwähnte umständliche Positionieren im unmittelbaren Gefahrenbereich der Heizpresse, welches sogar mehrfach vorgenommen werden muß, wenn die Naht­ länge die Länge des Heizbalkens übersteigt. Nach dem Vorfixieren werden die Teile in der Heizpresse fertig vulkanisiert.If a pipe fitting is to be bonded into a tarpaulin, you cut it in the tarpaulin a square hole, the side length of two seam tape width is smaller than the side length of the also square flange of the Pipe molding so that there is an overlap. The handheld device now allows selective pre-fixing of four pieces of seam tape around the hole before the Pipe molding is in turn pre-fixed on the seam tape. So always only two parts are brought into position (parts in the sense of to be connected Cuts, molded parts and seam tapes). Since the parts are after the prefix can no longer move against each other, this is also not the case at the beginning awkward positioning in the immediate danger area mentioned Heating press, which has to be done several times when the seam length exceeds the length of the heating bar. After pre-fixing the Parts vulcanized in the heating press.

Somit ergeben sich im wesentlichen folgende Vorteile bei Anwendung des Handgeräts:This essentially results in the following advantages when using the Handheld device:

  • - Das Vorfixieren findet außerhalb des Gefahrenbereichs der Heizpresse statt: Verminderte Verbrennungs- und Quetschgefahr.- The pre-fixing takes place outside the danger zone of the heating press instead: Reduced risk of burns and crushing.
  • - Das Vorfixieren findet im Nahtbereich statt, d. h. die Teile sind direkt mit­ einander verbunden und können sich nicht mehr gegeneinander verschieben.- The pre-fixing takes place in the seam area, i.e. H. the parts are directly with connected to each other and can no longer be against each other move.
  • - Das Nahtband wird auch fixiert.- The seam tape is also fixed.
  • - Zeitersparnis bei großen Nahtlängen.- Time saving with large seam lengths.

Claims (10)

1. Handgerät zum punktuellen Vulkanisieren von Elastomerbahnen (z. B. Rollenware, wie für Flachdach- oder Abdeckplanen o. ä. verwendet, mit oder ohne dazwischen liegendem Nahtband) durch Aufbringung von Druck und Temperatur über eine bestimmte Zeitdauer (Hot-Bonding-Prozeß), bestehend aus zwei elektrisch betriebenen Heizköpfen (1), vorzugsweise in runder Ausführung mit einem Durchmesser, der kleiner ist als die Breite des Nahtbands, die durch einen in sich beweglichen und durch Feder (2) selbst­ öffnenden Rahmen (3) aufeinander gepreßt werden, wobei die Kraft zwischen den beiden Heizköpfen (1) durch Aufbringen von Handkraft auf einen mit dem Rahmen (3) fest verbundenen Handgriff (4) und auf eine an Rahmen (3) und Handgriff (4) angelenkte Hebelmechanik (5) erzeugt wird.1.Handheld device for the selective vulcanization of elastomer sheets (e.g. roll goods, such as used for flat roof or cover tarpaulins or the like, with or without seam tape in between) by applying pressure and temperature over a certain period of time (hot-bonding process ), consisting of two electrically operated heating heads ( 1 ), preferably in a round design with a diameter which is smaller than the width of the seam band, which are pressed against one another by a frame ( 3 ) which is movable and self-opening by spring ( 2 ) , The force between the two heating heads ( 1 ) being generated by applying manual force to a handle ( 4 ) firmly connected to the frame ( 3 ) and to a lever mechanism ( 5 ) articulated on the frame ( 3 ) and handle ( 4 ). 2. Handgerät nach Anspruch 1, gekennzeichnet durch einen Rahmen (3), der einen Freiraum (A) aufspannt, welcher es dem Bediener ermöglicht, mit der freien Hand die zu bearbeitenden Materialien auf dem Handgerät zu posi­ tionieren und zu fixieren (Fig. 1-3).2. Hand device according to claim 1, characterized by a frame ( 3 ) which spans a space (A) which enables the operator to position and fix the materials to be processed on the hand device with the free hand ( Fig. 1 -3). 3. Handgerät nach einem oder beiden der Ansprüche 1 und 2, gekennzeichnet durch eine gegenüber der Arbeitsebene (B) erhöhte Griffposition, die den Fingern der Bedienhand einen Freiraum (C) für ungehinderten Zugriff auf Handgriff (4) und Hebelmechanik (5) gibt (Fig. 1).3. Handheld device according to one or both of claims 1 and 2, characterized by an increased grip position relative to the working plane (B), which gives the fingers of the operating hand a free space (C) for unimpeded access to the handle ( 4 ) and lever mechanism ( 5 ) ( Fig. 1). 4. Handgerät nach einem oder mehreren der Ansprüche 1 bis 3, gekennzeich­ net durch die Möglichkeit der Durchführung von überlappten und gleichzei­ tig parallel liegenden Bahnen (I) durch den Rahmen (3), realisiert durch ein Z-förmiges Profil (6) (Fig. 1, 4).4. Handheld device according to one or more of claims 1 to 3, characterized by the possibility of carrying out overlapped and simultaneously parallel tracks (I) through the frame ( 3 ), realized by a Z-shaped profile ( 6 ) ( Fig . 1, 4). 5. Handgerät nach einem oder mehreren der Ansprüche 1 bis 4, gekennzeich­ net durch eine Hebelmechanik (5) mit veränderlichem Kraft-Weg-Verhält­ nis, die ein weites Öffnen des Rahmens (3) erlaubt, ohne daß die Öffnung der bedienenden Hand unergonomisch groß sein muß und gleichzeitig bewirkt die Hebelmechanik (5), daß bei geschlossenem Rahmen (3) der Prozeßdruck mit vertretbarer Handkraft aufgebracht werden kann (Fig. 1). 5. Handheld device according to one or more of claims 1 to 4, characterized by a lever mechanism ( 5 ) with variable force-displacement ratio, which allows the frame ( 3 ) to be opened wide without the opening of the operating hand being unergonomically large must and at the same time causes the lever mechanism ( 5 ) that when the frame ( 3 ) is closed, the process pressure can be applied with reasonable manual force ( Fig. 1). 6. Handgerät nach einem oder mehreren der Ansprüche 1 bis 5, gekennzeich­ net dadurch, daß eine vorgespannte Feder (7) innerhalb der Hebelmechanik (5) im Moment des geschlossenen Zustands des Rahmens (3) (kurz bevor die Hebelmechanik (5) ihre Endposition erreicht) ausgelenkt wird und von da an für den Prozeßdruck maßgeblich ist, der sich in der Endposition der Hebel­ mechanik (5) einstellt, wobei die Geometrie der Hebelmechanik (5) und die Dimensionierung und Vorspannung der Feder (7) so gewählt sind, daß der für den Prozeß erforderliche Druck erreicht und weitgehend unabhängig von der Materialstärke eingehalten wird (Fig. 2, 3).6. Hand tool according to one or more of claims 1 to 5, characterized in that a prestressed spring ( 7 ) within the lever mechanism ( 5 ) at the moment of the closed state of the frame ( 3 ) (just before the lever mechanism ( 5 ) its final position ) achieved is deflected and from then on is decisive for the process pressure, the mechanics in the end position of the lever sets (5), wherein the geometry of the lever mechanism (5) and the dimensioning and bias of the spring (7) are selected such that the pressure required for the process is reached and largely maintained regardless of the material thickness ( Fig. 2, 3). 7. Handgerät nach einem oder mehreren der Ansprüche 1 bis 6, gekennzeich­ net dadurch, daß die Hebelmechanik (5) während des Arbeitsprozesses in ihrer Endposition (= Arbeitsposition) feststeht und somit keine andauernde Bedienkraft erforderlich ist (Fig. 3).7. Hand tool according to one or more of claims 1 to 6, characterized in that the lever mechanism ( 5 ) is fixed during the working process in its end position (= working position) and thus no continuous operator is required ( Fig. 3). 8. Handgerät nach einem oder mehreren der Ansprüche 1 bis 7, gekennzeich­ net dadurch, daß das Lösen der Hebelmechanik (5) aus der Endposition (= Arbeitsposition) durch Ziehen mit dem Zeigefinger der Bedienhand an dem Lösehebel (8) in Richtung Handgriff (4) geschieht (Fig. 3).8. Hand tool according to one or more of claims 1 to 7, characterized in that the release of the lever mechanism ( 5 ) from the end position (= working position) by pulling with the index finger of the operating hand on the release lever ( 8 ) in the direction of the handle ( 4th ) happens ( Fig. 3). 9. Handgerät nach einem oder mehreren der Ansprüche 1 bis 8, gekennzeich­ net durch eine integrierte Zeitmessung, die bei geschlossenem Rahmen (3) automatisch gestartet wird und nach Ablauf des Prozesses den Bediener durch ein optisches und/oder akustisches Warnsignal auffordert, den Prozeß durch Ziehen des Lösehebels (8) zu beenden.9. Handheld device according to one or more of claims 1 to 8, characterized by an integrated time measurement, which is started automatically when the frame ( 3 ) is closed and prompts the operator after the process by an optical and / or acoustic warning signal, the process by To finish pulling the release lever ( 8 ). 10. Handgerät nach einem oder mehreren der Ansprüche 1 bis 9, gekennzeich­ net durch eine integrierte Zeitmessung mit mehreren vorwählbaren Zeiten, die voneinander unabhängig auf verschiedene Prozeßbedingungen (z. B. unterschiedliche Bahnenstärken etc.) eingestellt werden können.10. Handheld device according to one or more of claims 1 to 9, characterized net by an integrated time measurement with several preselectable times, which are independent of each other for different process conditions (e.g. different web thicknesses, etc.) can be set.
DE19512676A 1995-04-06 1995-04-06 Hand tool thermal spot-bonding material for elastomeric roofing sheet Withdrawn DE19512676A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19512676A DE19512676A1 (en) 1995-04-06 1995-04-06 Hand tool thermal spot-bonding material for elastomeric roofing sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19512676A DE19512676A1 (en) 1995-04-06 1995-04-06 Hand tool thermal spot-bonding material for elastomeric roofing sheet

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2821201A1 (en) * 2013-07-05 2015-01-07 Deutsches Zentrum für Luft- und Raumfahrt e.V. Tempering device for semi-finished fibre products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2821201A1 (en) * 2013-07-05 2015-01-07 Deutsches Zentrum für Luft- und Raumfahrt e.V. Tempering device for semi-finished fibre products

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