EP1088110B1 - Device for fleshing, stretching and drying leather or similar flat materials such as skins, furs and such like - Google Patents
Device for fleshing, stretching and drying leather or similar flat materials such as skins, furs and such like Download PDFInfo
- Publication number
- EP1088110B1 EP1088110B1 EP99936404A EP99936404A EP1088110B1 EP 1088110 B1 EP1088110 B1 EP 1088110B1 EP 99936404 A EP99936404 A EP 99936404A EP 99936404 A EP99936404 A EP 99936404A EP 1088110 B1 EP1088110 B1 EP 1088110B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leather
- lamellae
- stretching
- support surface
- possesses
- 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 - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/58—Drying
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/26—Leather tensioning or stretching frames; Stretching-machines; Setting-out boards; Pasting boards
Definitions
- the invention relates to a device for silting, stretching and drying Leather or similar flat materials such as Skins, furs and the like.
- DE 38 33 068 describes a device as the closest prior art known in which the leather pieces in a gap between a slidable Carrying surface and an elastically stretchable membrane stretched under vacuum become.
- the application enables a rigid support made of highly thermally conductive material combined stretching and drying machine, whereby the evaporated leather moisture due to the relief-like structure of the membrane, which is equipped with a suction device is connected, is discharged.
- This device affects the leather acting pressure forces despite the sliding surface against the stretching force Act.
- the resulting resistance (friction) prevents the optimal Carrying of the leather, as well as its all-over even stretching and limited the achievable dimensional gain.
- the elastic membrane is heavily stressed; their consequently limited lifespan leads to an increase in operating costs the machine.
- this device is only suitable for the treatment of hides with low water content (approx. 25%); it is not suitable for very wet leather.
- Vacuum dryer systems are also known which also have very wet leather dry. Excess water is removed manually here. The However, leather is only dried - not stretched at the same time - and it is shrinking.
- the object of the invention is to provide a device which is high Frictional forces when stretching the leather under vacuum are eliminated in that the leather support surface is formed by elements, which the leather as well as the Take the pressure device over the entire surface without frictional resistance to the support surface, thereby optimally enlarging its area, and which is also able to stretch and dry very wet leather at the same time and if necessary beforehand harnessen.
- the object is achieved in that a smooth, slidable, Contact surface, which consists of highly heat-conducting material and through Thermal energy is heated by means of hot water, oil or another medium, movable slats are arranged, which with a drive device for circular extension from the center to the outside around a fixed point are connected.
- These fins form the actual stretching tool
- the pressure device arranged one above the other which consists of a plate stretchy material with channels, knobs, perforation and the like for drainage the leather moisture exists, mainly has a fixation function.
- the pressure device can also consist of a solid, non-stretchable plate, the Surface with channels, perforation and the like for removing the leather moisture is provided.
- a second slat system becomes a mirror image of this attached, so that between the two outward extending slat systems Leather is stretched and fixed by the fixed pressure plate.
- the device depicted in FIG. 1 works with a device on the support surface (AF). attached slat system (LM1) and a stretchable membrane (M) existing pressure and stretching device, which are arranged one above the other.
- the leather piece (L) is placed on the slats (LM1) of the support surface (AF).
- a vertical movement brings both parts together and the gap by means of a seal (D) which is located on the edge of the stretchable membrane (M) or the contact surface (AF) is sealed.
- the gap space on one Vacuum source (VQ) is connected, is evacuated.
- the Slats (LM1) e.g. by a circular movement around a fixed bolt, by means of a drive device (AV), e.g. mechanical, hydraulic or pneumatic, extended and take the leather piece (L) on top.
- AV drive device
- the excess water is clicked out, wrinkles smoothed and the surface stretched evenly.
- the one formed by the stretchable membrane (M) Pressure device (AD) partly follows the path of the slats, but is by moved its own stretching device.
- the extending slats (LM1) lay one smooth, heated by heating (H) contact surface (AF) made of high quality metal free.
- the stretched membrane (M) fixes the stretched leather piece continuously (L) on the contact surface (AF), which is affected by the heat at the same time is dried.
- the resulting moisture is channeled, nub-like Surface, perforation and the like, which either in the metal plate of the Contact surface (AF) or in the membrane (M) are removed.
- the vacuum is released.
- the device shown in FIG. 2 operates on the same principle; the Pressure device (AD) is, however, by a solid, non-stretchable plate (P), on which a second lamella system (LM2) is attached in mirror image.
- the leather piece (L) is replaced by the simultaneous one Extending both slat systems (LM1, LM2) stretched, the heated support surface (AF) is exposed and the firm, non-stretchable plate (P) fixes the leather (L).
- Fig. 3 shows an example of the solution of the lamella system (LM1, LM2), where the circular movement of the slats around the fixed point is shown.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Fiber Materials (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Schlicken, Strecken und Trocknen von Leder oder ähnlichen Flachmaterialien wie z.B. Fellen, Pelzen und dergleichen.The invention relates to a device for silting, stretching and drying Leather or similar flat materials such as Skins, furs and the like.
Aus DE 30.10.003 ist es bekannt, Lederstücke in einem Spaltraum zwischen zwei durch Unterdruck gegeneinander gepressten, elastisch dehnbaren Folien durch deren gleichzeitiges Dehnen zu strecken.From DE 30.10.003 it is known to hide pieces of leather in a gap between two elastically stretchable foils pressed against each other by negative pressure to stretch at the same time.
Aus DE 38 33 068 ist als nächstkommender Stand der Technik eine Vorrichtung bekannt, bei der die Lederstücke in einem Spaltraum zwischen einer gleitfähigen Autlagefläche und einer elastisch dehnbaren Membrane unter Vakuum gestreckt werden. Im Unterschied zur Vorrichtung nach DE 30.10.003 ermöglicht die Anwendung einer starren Auflage aus hochwärmeleitendem Material die Nutzung als kombinierte Streck- und Trocknungsmaschine, wobei die verdampfte Lederfeuchtigkeit durch reliefartige Struktur der Membrane, welche mit einer Absaugvorrichtung verbunden ist, abgeführt wird. DE 38 33 068 describes a device as the closest prior art known in which the leather pieces in a gap between a slidable Carrying surface and an elastically stretchable membrane stretched under vacuum become. In contrast to the device according to DE 30.10.003, the application enables a rigid support made of highly thermally conductive material combined stretching and drying machine, whereby the evaporated leather moisture due to the relief-like structure of the membrane, which is equipped with a suction device is connected, is discharged.
Der Nachteil dieser Vorrichtung liegt vor allem darin, dass die auf das Leder wirkenden Andruckkräfte trotz der gleitfähigen Auflagelläche gegen die Streckkraft wirken. Der dadurch entstehende Widerstand (Reibung) verhindert die optimale Mitnahme des Leders, sowie seine ganzflächig gleichmässige Dehnung und beschränkt den erzielbaren Massgewinn. Die elastische Membrane wird dabei stark beansprucht; ihre infolge dessen beschränkte Lebensdauer führt zum Anstieg der Betriebskosten der Maschine. Ferner eignet sich diese Vorrichtung nur zur Behandlung von Häuten mit niedrigem Wassergehalt (ca. 25%); für sehr nasses Leder ist sie nicht geeignet.The main disadvantage of this device is that it affects the leather acting pressure forces despite the sliding surface against the stretching force Act. The resulting resistance (friction) prevents the optimal Carrying of the leather, as well as its all-over even stretching and limited the achievable dimensional gain. The elastic membrane is heavily stressed; their consequently limited lifespan leads to an increase in operating costs the machine. Furthermore, this device is only suitable for the treatment of hides with low water content (approx. 25%); it is not suitable for very wet leather.
Aus französicher Patentanmeldung 2602795 ist eine Vorrichtung bekannt, die dem
Oberbegriff von Ansprüchen 1 oder 2 entspricht.From French patent application 2602795 a device is known which the
Preamble of
Sie zeigt dreieckförmige Lamellen, die von ihrer geschlossenen Stellung nach Fig. 2 radial nach außen in die in Fig. 3 dargestellte Stellung verfahrbar sind und so die Haut dehnen. Das wesentliche, unterscheidende Merkmal der Vorrichtung nach dieser Anmeldung besteht darin, dass die Lamellen nach Art einer Irisblende nach außen rund um einen festen Punkt schwenken. Durch diese besondere Bewegung der Lamellen treten zwischen den Lamellen keine Zwischenräume während der Bewegung auf, sondern sich eine mittlere, sich vergrössernde Öffnung ergibt, so dass die sich dort befindenden, bereits gedehnten Abschnitte der Haut, in dieser zentralen Öffnung bereits plattgepresst und getrocknet werden können. Darüber hinaus wird auch die gedehnte Haut über ihren gesamten Umfang in Endstellung der Lamellen durch die besondere Form der Lamellen festgehalten.It shows triangular lamellae which, from their closed position according to FIG. 2 can be moved radially outward into the position shown in Fig. 3 and so the Stretch skin. The essential, distinguishing feature of the device according to This application consists in the fact that the lamellae look like an iris diaphragm swivel the outside around a fixed point. Through this special movement of the Slats no gaps occur between the slats during the movement on, but there is a central, enlarging opening, so that the already stretched sections of the skin located there, in this central Opening can be pressed flat and dried. Beyond that also the stretched skin over its entire circumference in the end position of the slats held by the special shape of the slats.
Im Gegensatz dazu entstehen zwischen den Lamellen nach der franz. Anmeldung beim Ausfahren der Lamellen Zwischenräume, in denen die Haut nicht mehr gehalten ist. Sind die dreieckförmigen Lamellen ausgefahren, so wird die Haut nur noch von den Spitzen der Lamellen gehalten, also mit einer relativ geringen Fläche, wobei weite Teile des Umfangs der Haut nicht mehr von den Lamellen gehalten werden.In contrast, between the slats after the French. registration when extending the slats gaps in which the skin no longer is held. If the triangular lamellae are extended, the skin only becomes still held by the tips of the slats, i.e. with a relatively small area, whereby large parts of the circumference of the skin are no longer held by the lamellae become.
Es sind ferner Vakuumtrockner-Anlagen bekannt, welche auch sehr nasses Leder trocknen. Das Ausschlicken von überschüssigem Wasser erfolgt hier manuell. Das Leder wird jedoch nur getrocknet - nicht gleichzeitig gestreckt - wobei es sogar schrumpft.Vacuum dryer systems are also known which also have very wet leather dry. Excess water is removed manually here. The However, leather is only dried - not stretched at the same time - and it is shrinking.
Die Aufgabe der Erfindung ist die Schaffung einer Vorrichtung, welche die hohen Reibungskräfte beim Strecken des Leders unter Vakuum dadurch eliminiert, dass die Lederauflagefläche durch Elemente gebildet ist, welche das Leder sowie die Andrucksvorrichtung ganzflächig ohne Reibungswiderstand zur Auflagefläche mitnehmen, dadurch seine Fläche optimal vergrössern, und welche ferner imstande ist, auch sehr nasses Leder gleichzeitig zu strecken und zu trocknen und es ggf. vorher auszuschlicken.The object of the invention is to provide a device which is high Frictional forces when stretching the leather under vacuum are eliminated in that the Leather support surface is formed by elements, which the leather as well as the Take the pressure device over the entire surface without frictional resistance to the support surface, thereby optimally enlarging its area, and which is also able to stretch and dry very wet leather at the same time and if necessary beforehand auszuschlicken.
Die Aufgabe wird erfindungsgemäss dadurch gelöst, dass über eine glatte, gleitfähige, Auflagefläche, welche aus hochwärmeleitendem Material besteht und durch Wärmeenergie mittels heisses Wasser, Öl oder ein anderes Medium beheizt wird, bewegliche Lamellen angeordnet sind, welche mit einer Antriebsvorrichtung zum kreisförmigen Ausfahren von der Mitte nach Aussen um einen festen Punkt verbunden sind. Diese Lamellen bilden das eigentliche Streckwerkzeug, während die übereinander angeordnete Andrucksvorrichtung, welche aus einer Platte aus dehnbarem Material mit Kanälen, Noppen, Perforation und ähnlichem zum Abführen der Lederfeuchtigkeit besteht, vorwiegend eine Fixationsfunktion hat. Die Andrucksvorrichtung kann auch aus einer festen, nicht dehnbaren Platte bestehen, deren Oberfläche mit Kanälen, Perforation und ähnlichem zum Abführen der Lederfeuchtigkeit versehen ist. An dieser wird ein zweites Lamellensystem spiegelbildlich angebracht, sodaß zwischen den zwei nach aussen ausfahrbaren Lamellensystemen das Leder gestreckt und durch die feste Andrucksplatte fixiert wird.According to the invention, the object is achieved in that a smooth, slidable, Contact surface, which consists of highly heat-conducting material and through Thermal energy is heated by means of hot water, oil or another medium, movable slats are arranged, which with a drive device for circular extension from the center to the outside around a fixed point are connected. These fins form the actual stretching tool, while the pressure device arranged one above the other, which consists of a plate stretchy material with channels, knobs, perforation and the like for drainage the leather moisture exists, mainly has a fixation function. The pressure device can also consist of a solid, non-stretchable plate, the Surface with channels, perforation and the like for removing the leather moisture is provided. A second slat system becomes a mirror image of this attached, so that between the two outward extending slat systems Leather is stretched and fixed by the fixed pressure plate.
Andere besondere Ausführungen der Erfindung sind unter Ansprüchen 3 bis 9 aufgeführt. Other special embodiments of the invention are defined in claims 3 to 9 listed.
Nachfolgend werden Ausführungen der erfindungsgemäßen Vorrichtung anhand von Zeichnungen erläutert.Embodiments of the device according to the invention are described below with reference to Drawings explained.
Es zeigen:
- Fig. 1 -
- eine Gesamtseitenansichl der Vorrichtung nach dem
Patentanspruch 1 - Fig. 2 -
- eine Gesamtseitenansicht der Vorrichtung nach dem Patentanspruch 2
- Fig. 3 -
- eine Draufsicht des Lamellensystems mit aufliegendem Lederstück und angezeichneter Richtung des Ausfahrens der Lamellen von der Mitte nach außen.
- Fig. 1 -
- an overall side view of the device according to
claim 1 - Fig. 2 -
- an overall side view of the device according to claim 2
- Fig. 3 -
- a plan view of the slat system with a piece of leather lying on it and the marked direction of extension of the slats from the center to the outside.
In der Fig. 1 abgebildete Vorrichtung arbeitet mit einem auf der Auflagefläche (AF) angebrachten Lamellensystem (LM1) und aus einer dehnbaren Membrane (M) bestehenden Andrucks- und Dehnvorrichtung, die übereinander angeordnet sind. Das Lederstück (L) wird auf die Lamellen (LM1) der Auflagefläche (AF) gelegt. Durch eine vertikale Bewegung werden beide Teile zusammengefahren und der Spaltraum wird mittels einer Dichtung (D), die sich am Rande der dehnbaren Membrane (M) oder der Auflagefläche (AF) befindet, abgedichtet. Der Spaltraum, der auf eine Vakuumquelle (VQ) angeschlossen ist, wird evakuiert. Gleichzeitig werden die Lamellen (LM1), z.B. durch eine Kreisbewegung rund um einen festen Bolzen, mittels einer Antriebsvorrichtung (AV), z.B. mechanisch, hydraulisch oder pneumatisch, ausgefahren und nehmen dabei das aufliegende Lederstück (L) mit. The device depicted in FIG. 1 works with a device on the support surface (AF). attached slat system (LM1) and a stretchable membrane (M) existing pressure and stretching device, which are arranged one above the other. The The leather piece (L) is placed on the slats (LM1) of the support surface (AF). By a vertical movement brings both parts together and the gap by means of a seal (D) which is located on the edge of the stretchable membrane (M) or the contact surface (AF) is sealed. The gap space on one Vacuum source (VQ) is connected, is evacuated. At the same time, the Slats (LM1), e.g. by a circular movement around a fixed bolt, by means of a drive device (AV), e.g. mechanical, hydraulic or pneumatic, extended and take the leather piece (L) on top.
Dabei wird das überschüssige Wasser ausgeschlickt, Falten geglättet und die Fläche gleichmäßig gestreckt. Die durch die dehnbare Membrane (M) gebildete Andrucksvorrichtung (AD) folgt teilweise dem Weg der Lamellen, wird jedoch durch eine eigene Dehnvorrichtung bewegt. Die ausfahrenden Lamellen (LM1) legen eine glatte, durch Heizung (H) beheizte Auflagefläche (AF) aus hochwertigem Metall frei. Die gedehnte Membrane (M) fixiert dabei kontinuierlich das gestreckte Lederstück (L) auf der Auflagefläche (AF), welches durch die Wärmeeinwirkung gleichzeitig getrocknet wird. Die dabei entstehende Feuchtigkeit wird durch Kanäle, noppenartige Oberfläche, Perforation und ähnliches, welche entweder in der Metallplatte der Auflagefläche (AF) oder in der Membrane (M) angebracht sind, abgeführt. Nach Beendigung des Streck- und Trocknungsprozesses wird das Vakuum aufgelöst.The excess water is clicked out, wrinkles smoothed and the surface stretched evenly. The one formed by the stretchable membrane (M) Pressure device (AD) partly follows the path of the slats, but is by moved its own stretching device. The extending slats (LM1) lay one smooth, heated by heating (H) contact surface (AF) made of high quality metal free. The stretched membrane (M) fixes the stretched leather piece continuously (L) on the contact surface (AF), which is affected by the heat at the same time is dried. The resulting moisture is channeled, nub-like Surface, perforation and the like, which either in the metal plate of the Contact surface (AF) or in the membrane (M) are removed. To At the end of the stretching and drying process, the vacuum is released.
In der Fig. 2 gezeichnete Vorrichtung arbeitet nach demselben Prinzip; die Andrucksvorrichtung (AD) wird jedoch durch eine feste, nicht dehnbare Platte (P), auf welcher ein zweites Lamellensystem (LM2) spiegelbildlich angebracht ist, gebildet. Nach dem Autbau des Vakuums wird das Lederstück (L) durch das gleichzeitige Ausfahren beider Lamellensysteme (LM1, LM2) gestreckt, die beheizte Auflagefläche (AF) wird freigelegt und die feste, nicht dehnbare Platte (P) fixiert das Leder (L).The device shown in FIG. 2 operates on the same principle; the Pressure device (AD) is, however, by a solid, non-stretchable plate (P), on which a second lamella system (LM2) is attached in mirror image. After building the vacuum, the leather piece (L) is replaced by the simultaneous one Extending both slat systems (LM1, LM2) stretched, the heated support surface (AF) is exposed and the firm, non-stretchable plate (P) fixes the leather (L).
Fig. 3 zeigt ein Beispiel der Lösung des Lamellensystems (LM1, LM2), wo die kreisförmige Bewegung der Lamellen um den festen Punkt dargestellt wird.Fig. 3 shows an example of the solution of the lamella system (LM1, LM2), where the circular movement of the slats around the fixed point is shown.
Claims (9)
- Device for the dewatering, stretching and drying of leather and similar flat materials, thereby characterised that it possesses an interstice, sealed by a gasket (D) and connected to a vacuum source (VQ), for the leather piece (L) and consists of a support surface (AF), above which lamellae (LM1) are mounted with a drive mechanism (AV) to deploy them outwards from the centre, and a contact pressure device (AD1) of a stretchable membrane (M) connected to a separate stretching mechanism, thereby characterised that the lamellae (LM1) can be deployed outwards by a circular movement around a fixed pin.
- Device for the dewatering, stretching and drying of leather and similar flat materials thereby characterised that is possesses an interstice, sealed by a gasket (D) and connected to a vacuum source (VQ), for the leather piece (L) and consists of a support surface (AF) above which lamellae (LM1) are mounted with a drive mechanism (AV) to deploy them outwards from the centre and a contact pressure device (AD2), consisting of a second lamella system (LM2) fitted to a rigid, inextensible plate (P), connected to a stretching mechanism and mounted as a mirror image of the lower lamella system (LM1), thereby characterised that the lamellae (LM1, LM2) can be deployed outwards by a circular movement around a fixed pin.
- Device according to Claims 1 or 2 thereby characterised that the support surface (AF) is smooth with low friction, consists of a material with high thermal conductivity and is heated by thermal energy in the form of hot water, oil or another medium.
- Device according to Claims 1 to 3 thereby characterised that the support surface (AF) has channels or perforations to drain the moisture from the leather.
- Device according to Claims 1, 3 and 4 thereby characterised that the contact pressure device (AD) possesses a stretchable membrane (M), fitted with ist own stretching mechanism, that presses the leather piece (L) against the lamellae (LM1) on the support surface (AF).
- Device according to Claims 1, 3 and 5 thereby characterised that the stretchable membrane (M) possesses channels, nubs, perforations and the like for the drainage of moisture from the leather.
- Device according to Claim 2 thereby characterised that the rigid, inextensible plate (P) possesses channels, nubs, perforations and the like for the drainage of moisture from the leather.
- Device according to Claims 1 to 7 thereby characterised that the moveable lamellae (LM1, LM2) present a sliding surface to the support surface (AF) and a surface able to move with the leather piece (L) laid on it.
- Device according to Claims 1 to 8 thereby characterised that the drive mechanism (AV) for the deployment of the lamellae systems (LM1, LM2) is of mechanical, hydraulic or pneumatic design.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19826181 | 1998-06-14 | ||
| DE19826181A DE19826181A1 (en) | 1998-06-14 | 1998-06-14 | Device for silting, stretching and drying leather and similar flat materials such as furs, furs and the like. the like |
| PCT/DE1999/001636 WO1999066081A1 (en) | 1998-06-14 | 1999-06-02 | Device for fleshing, stretching and drying leather or similar flat materials such as skins, furs and such like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1088110A1 EP1088110A1 (en) | 2001-04-04 |
| EP1088110B1 true EP1088110B1 (en) | 2002-07-31 |
Family
ID=7870679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99936404A Expired - Lifetime EP1088110B1 (en) | 1998-06-14 | 1999-06-02 | Device for fleshing, stretching and drying leather or similar flat materials such as skins, furs and such like |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6615621B1 (en) |
| EP (1) | EP1088110B1 (en) |
| DE (2) | DE19826181A1 (en) |
| ES (1) | ES2181459T3 (en) |
| WO (1) | WO1999066081A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19826181A1 (en) * | 1998-06-14 | 1999-12-16 | Bohumil Stupecky | Device for silting, stretching and drying leather and similar flat materials such as furs, furs and the like. the like |
| US6786067B2 (en) * | 2001-03-09 | 2004-09-07 | Bohumil Stupecky | Device for the slicking, stretching and drying of leather or similar flat materials such as hides, skins and the like |
| ITVI20010220A1 (en) * | 2001-10-23 | 2003-04-23 | Cartigliano Off Spa | METHOD AND LINE FOR CONTINUOUS ENLARGEMENT OF LEATHER AND OTHER SIMILAR PRODUCTS |
| US20050278905A1 (en) * | 2004-02-05 | 2005-12-22 | Eagle Ottawa, Llc | Toggle clamp assist tool |
| DE102006002998B4 (en) * | 2006-01-21 | 2009-05-07 | Bima Maschinenfabrik Gebr. Biedermann Gmbh & Co. | Lenkradbezugdehneinrichtung |
| CN106319109A (en) * | 2015-07-02 | 2017-01-11 | 周宝龙 | Improved leather drying room |
| CN106319107A (en) * | 2015-07-02 | 2017-01-11 | 周宝龙 | Leather drying room |
| CN106755619A (en) * | 2017-03-16 | 2017-05-31 | 林安益 | A kind of leather coloring processing abundant water squeezing equipment of scytoblastema |
| CN109777898B (en) * | 2018-12-29 | 2022-11-25 | 喜临门酒店家具有限公司 | Anti-wrinkling treatment method for leather for furniture |
| CN110714101A (en) * | 2019-09-26 | 2020-01-21 | 辽宁富新新材料有限公司 | Drying process of chrome-free tanned leather blank |
| CN111982480B (en) * | 2020-05-11 | 2022-08-23 | 北京机械设备研究所 | Technological method for improving discreteness of friction force of cylinder |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI55682C (en) * | 1977-09-06 | 1979-09-10 | Viljanmaa Antti | SPRING SPEAKING |
| FI57617C (en) * | 1979-01-18 | 1980-09-10 | Viljanmaa Antti | SPRING SPEAKING |
| DE3010003C2 (en) | 1980-03-15 | 1986-02-13 | Jiří Dipl-Ing. 6251 Gückingen Dokoupil | Method and device for enlarging and drying areas of leather, hides and similar materials |
| CH638564A5 (en) * | 1980-03-27 | 1983-09-30 | Patpan Inc | Method and apparatus for drying damp skin. |
| FR2602795A1 (en) * | 1986-08-18 | 1988-02-19 | Mercier Freres | Process for stretching and preglazing a skin or a wet leather and preglazer-stretcher making use thereof |
| DE3833068A1 (en) * | 1988-09-29 | 1990-04-05 | Dokoupil Jiri | METHOD AND DEVICE FOR STRETCHING LEATHER |
| US5291759A (en) * | 1988-09-29 | 1994-03-08 | Jiri Dokoupil | Process and equipment for stretching of leather |
| DE19826181A1 (en) * | 1998-06-14 | 1999-12-16 | Bohumil Stupecky | Device for silting, stretching and drying leather and similar flat materials such as furs, furs and the like. the like |
-
1998
- 1998-06-14 DE DE19826181A patent/DE19826181A1/en not_active Withdrawn
-
1999
- 1999-06-02 EP EP99936404A patent/EP1088110B1/en not_active Expired - Lifetime
- 1999-06-02 WO PCT/DE1999/001636 patent/WO1999066081A1/en active IP Right Grant
- 1999-06-02 ES ES99936404T patent/ES2181459T3/en not_active Expired - Lifetime
- 1999-06-02 DE DE59902204T patent/DE59902204D1/en not_active Expired - Fee Related
- 1999-06-02 US US09/719,760 patent/US6615621B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1088110A1 (en) | 2001-04-04 |
| WO1999066081A1 (en) | 1999-12-23 |
| ES2181459T3 (en) | 2003-02-16 |
| DE59902204D1 (en) | 2002-09-05 |
| DE19826181A1 (en) | 1999-12-16 |
| US6615621B1 (en) | 2003-09-09 |
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