DE4223991A1 - Hollow chamber formation using core of deep frozen ice - by enclosing core in tool using foaming material, in which porous styrene] balls are opt. frozen - Google Patents

Hollow chamber formation using core of deep frozen ice - by enclosing core in tool using foaming material, in which porous styrene] balls are opt. frozen

Info

Publication number
DE4223991A1
DE4223991A1 DE19924223991 DE4223991A DE4223991A1 DE 4223991 A1 DE4223991 A1 DE 4223991A1 DE 19924223991 DE19924223991 DE 19924223991 DE 4223991 A DE4223991 A DE 4223991A DE 4223991 A1 DE4223991 A1 DE 4223991A1
Authority
DE
Germany
Prior art keywords
core
frozen
tool
ice
balls
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Withdrawn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
DE19924223991
Other languages
German (de)
Inventor
Heinrich Griesel
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.)
Das Land Hessen Vertreten Durch Den Regierungspra
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19924223991 priority Critical patent/DE4223991A1/en
Publication of DE4223991A1 publication Critical patent/DE4223991A1/en
Withdrawn legal-status Critical Current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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
    • B29C2033/525—Cores made of frozen liquids, e.g. ice
    • 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
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3091—Bicycles
    • 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
    • B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

The method forms hollow chambers, using a core of deep-frozen ice in two half-shells. The core can be fixed in the tool and enclosed by poured or foam-forming material. A passage can be left in the latter for water escape on melting and also for filling the chamber with liq., oil etc.. Porous styrene balls can be frozen in the core and left behind after it has melted. Gel or similar viscous substances can be used for the core. ADVANTAGE - The enclosing material need not be opened to remove the core

Description

Es war bisher technisch nicht möglich, den Form-Kern aus seiner Ummantelung herauszunehmen, ohne die Ummantelung zu öffnen oder zu entfernen.So far it has not been technically possible to form the core to take out his jacket without the jacket to open or remove.

Das Alternativverfahren, den Gegenstand aus zwei Teilen zu fertigen, in denen jeweils die Halbkern-Form ausgebildet ist und die mittels Klebung oder Verschweißung oder mittels anderer Methoden zusammengefügt werden, hat den Nachteil, daß nach längerem Gebrauch die Ummantelung an den Verbindungsstellen undicht wird und den Gegenstand unbrauchbar macht, insbesondere dann, wenn der Hohlraum unter Überdruck steht.The alternative method, the object of two parts to manufacture, in each of which the half-core shape is formed and that by means of gluing or welding or put together using other methods the disadvantage that after a long period of use the casing at the junctions and leaks the object unusable, especially if the cavity is under pressure.

Diese Nachteile werden erfindungsgemäß verhindert.These disadvantages are prevented according to the invention.

Anhand eines Ausführungsbeispiels - Zweiradsattelherstellung - wird die Erfindung wie folgt näher erläutert:Using an exemplary embodiment - two-wheel saddle production - The invention is explained in more detail as follows:

Zweiradsättel werden heute meist aus Polyurethan oder Gel im Schäumungsverfahren hergestellt, wobei ein Stabilisierungsblech mit eingeschäumt wird, das nach dem Schäumungsvorgang mit den Befestigungsarmaturen, der Krampe und mit den Spiral- oder anderen Federungssystemen verbunden wird. Today two-wheel saddles are mostly made of polyurethane or Gel made in the foaming process, using a stabilizing sheet is foamed in after the Foaming process with the mounting fittings, the Krampe and with the spiral or other suspension systems is connected.  

Der Hohlraum im Zweiradsattel wird erfindungsgemäß dadurch hergestellt, daß der ihn bildende Kern aus tiefgefrorenem Eis oder Gel oder gelähnlichen Substanzen oder mit Gallertmasse geformt, 10 mm über dem Stabilisierungsblech in der Schäumungskammer fixiert und eingeschäumt wird. Nach dem Schäumungsvorgang schmilzt der Eiskern. Das Schmelzwasser fließt durch eine Kanüle ab, die mit dem Stabilisierungsblech verschweißt ist. Durch die gleiche Kanüle wird der Hohlraum unter Druck mit einem Wasser-Glysantin-Gemisch gefüllt. Auf diese Weise ist erfindungsgemäß eine Abfederung und weiche-elastische Polsterung erreicht, die sich im Gesäß- und Oberschenkelbereich des Radlers den sich dauernd verändernden Anatomiebewegungen anpaßt.The cavity in the two-wheeled saddle is invented manufactured in that the core forming it from frozen ice or gel or gel-like substances or molded with gelatin, 10 mm above the Stabilizing plate fixed in the foaming chamber and is foamed. After the foaming process the ice core melts. The melt water flows through a cannula that welds to the stabilizing plate is. The cavity becomes through the same cannula under pressure with a water-glysantine mixture filled. In this way, according to the invention, a cushioning is and achieved soft-elastic padding, which are in the buttocks and thigh area of the cyclist the constantly changing anatomical movements adjusts.

Die bisher üblichen Spiral- und/oder Zugfedern fallen weg, ebenso die Metallverbindungen zwischen den Federn und dem Stabilisierungsblech. An diesem ist erfindungsgemäß lediglich die Krampe angeschweißt, die den Sattel mit dem Sattelstützrohr verstellbar verbindet.The previously used spiral and / or tension springs are eliminated, as well as the metal connections between the springs and the stabilizing plate. This is according to the invention only welded the cramp that connects the saddle with the Seat post tube adjustable connects.

Claims (6)

1. Verfahren zur Bildung von Hohlräumen, dadurch gekennzeichnet, daß ein in zwei Halbschalen hergestellter Kern aus tief gefrorenem Eis vorgesehen wird.1. A method for forming cavities, characterized in that a core made of deep-frozen ice is provided in two half-shells. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Eiskern in dem Werkzeug fixiert und im Gieß- oder Schäumungs- oder in einem anderen Verfahren ummantelt wird.2. The method according to claim 1, characterized in that the Ice core fixed in the tool and in the casting or foaming or is encased in another process. 3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß in der Kernummantelung eine Kanüle vorgesehen ist, die sowohl für das abfließende Schmelzwasser als auch für die Füllung des Hohlraums mit Flüssigkeit oder anderen zähflüssigen oder öligen Substanzen verwendet werden kann.3. The method according to claim 1 and 2, characterized in that a cannula is provided in the core sheathing for both the flowing melt water and for filling the cavity with liquid or other viscous or oily substances can be used. 4. Verfahren nach Anspruch 1-3, dadurch gekennzeichnet, daß in den Eiskern Styroporkugeln miteingefroren werden, die nach dem Schmelzvorgang in dem Hohlraum verbleiben.4. The method according to claim 1-3, characterized in that styrofoam balls are frozen in the ice core remain in the cavity after the melting process. 5. Verfahren nach Anspruch 1-4, dadurch gekennzeichnet, daß die Elastizität der Ummantelung in ihrem Gesamtbereich oder in ihren Teilbereichen mittels Überdruck im Hohlraum in Verbindung mit den unterschiedlichen Wandstärken der Ummantelung eingestellt werden kann.5. The method according to claim 1-4, characterized in that the elasticity of the sheathing in its entire area or in their sub-areas by means of excess pressure in the cavity in connection with the different wall thicknesses the casing can be adjusted. 6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Form-Kern aus gefrorenem Gel oder gelähnlichen Substanzen oder aus anderen zähflüssigen Substanzen hergestellt sein kann.6. The method according to claim 1, characterized in that the Mold core made of frozen gel or gel-like substances or made from other viscous substances can be.
DE19924223991 1992-07-20 1992-07-20 Hollow chamber formation using core of deep frozen ice - by enclosing core in tool using foaming material, in which porous styrene] balls are opt. frozen Withdrawn DE4223991A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924223991 DE4223991A1 (en) 1992-07-20 1992-07-20 Hollow chamber formation using core of deep frozen ice - by enclosing core in tool using foaming material, in which porous styrene] balls are opt. frozen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924223991 DE4223991A1 (en) 1992-07-20 1992-07-20 Hollow chamber formation using core of deep frozen ice - by enclosing core in tool using foaming material, in which porous styrene] balls are opt. frozen

Publications (1)

Publication Number Publication Date
DE4223991A1 true DE4223991A1 (en) 1993-02-25

Family

ID=6463733

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19924223991 Withdrawn DE4223991A1 (en) 1992-07-20 1992-07-20 Hollow chamber formation using core of deep frozen ice - by enclosing core in tool using foaming material, in which porous styrene] balls are opt. frozen

Country Status (1)

Country Link
DE (1) DE4223991A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416055A1 (en) * 1994-05-02 1995-11-09 Leistritz Abgastech Process for the production of catalytic converters, in particular for motor vehicles
WO2005007375A2 (en) * 2003-07-18 2005-01-27 Boston Scientific Limited Medical devices and processes for preparing same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416055A1 (en) * 1994-05-02 1995-11-09 Leistritz Abgastech Process for the production of catalytic converters, in particular for motor vehicles
WO2005007375A2 (en) * 2003-07-18 2005-01-27 Boston Scientific Limited Medical devices and processes for preparing same
WO2005007375A3 (en) * 2003-07-18 2005-06-02 Scimed Life Systems Inc Medical devices and processes for preparing same
US8025637B2 (en) 2003-07-18 2011-09-27 Boston Scientific Scimed, Inc. Medical balloons and processes for preparing same

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
8127 New person/name/address of the applicant

Owner name: DAS LAND HESSEN, VERTRETEN DURCH DEN REGIERUNGSPRA

8181 Inventor (new situation)

Free format text: GRIESEL, HEINRICH, 6430 BAD HERSFELD, VERSTORBEN, DE

8181 Inventor (new situation)

Free format text: GRIESEL, HEINRICH, 6430 BAD HERSFELD, VERSTORBEN, DE

8139 Disposal/non-payment of the annual fee