EP0046977B1 - Dispositif pour tendre des lames de scie d'une scie alternative munie d'un dispositif de tension hydraulique - Google Patents
Dispositif pour tendre des lames de scie d'une scie alternative munie d'un dispositif de tension hydraulique Download PDFInfo
- Publication number
- EP0046977B1 EP0046977B1 EP81106603A EP81106603A EP0046977B1 EP 0046977 B1 EP0046977 B1 EP 0046977B1 EP 81106603 A EP81106603 A EP 81106603A EP 81106603 A EP81106603 A EP 81106603A EP 0046977 B1 EP0046977 B1 EP 0046977B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tensioning device
- hydraulic
- piston
- pressure
- saw
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B3/00—Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks
- B27B3/28—Components
- B27B3/30—Blade attachments, e.g. saw buckles; Stretching devices
- B27B3/34—Blade attachments, e.g. saw buckles; Stretching devices the stretching devices being actuated by fluid pressure
Definitions
- a hydraulic saw clamp is already known, with which all saw blades can be clamped hydraulically at the same time.
- This saw clamp consists essentially of a unit fastened to the upper latch of the frame, which contains a plurality of hydraulic cylinders arranged next to one another with corresponding pistons. Hydraulic fluid can be applied to these pistons via an oil pump in order to simultaneously clamp all the saw blades attached to the frame.
- the pressure generator is expediently formed by a piston which is accommodated in a further cylinder bore in the body and can be actuated from the outside. This configuration allows a very compact structure of the tensioning device and avoids hydraulic lines with all their disadvantages.
- the piston of the pressure generator can be actuated by mechanical means.
- These mechanical means can be formed, for example, by a screw that can be rotated in a thread of the body. In this way, pressure generation is possible with very simple means.
- the one zessen clamping devices 21 are easily operated by the clamping tool 29 is attached to the clamping device 21, with the centering means 44 adapted recesses 93 or the like for centering.
- hydraulic pressure e.g. B. generated by a hydraulic pump so that the pressure pin 89 'acts on the piston 59 of the pressure generator 57.
- the valve 68, 68 ' is then closed, so that the hydraulic pressure is still maintained in the clamping device 21 when the clamping tool 29 is removed again.
- the latches 13, 15 of the frame 10 can spring somewhat, it may be necessary to repeat the tensioning operation again after the first tensioning.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
- Treatment Of Fiber Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81106603T ATE11020T1 (de) | 1980-09-02 | 1981-08-26 | Auf einem gatterrahmen anbringbare hydraulische spanneinrichtung zum spannen von saegeblaettern. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH659680 | 1980-09-02 | ||
CH6596/80 | 1980-09-02 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0046977A2 EP0046977A2 (fr) | 1982-03-10 |
EP0046977A3 EP0046977A3 (en) | 1983-02-16 |
EP0046977B1 true EP0046977B1 (fr) | 1985-01-02 |
Family
ID=4312078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81106603A Expired EP0046977B1 (fr) | 1980-09-02 | 1981-08-26 | Dispositif pour tendre des lames de scie d'une scie alternative munie d'un dispositif de tension hydraulique |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0046977B1 (fr) |
AT (1) | ATE11020T1 (fr) |
DE (1) | DE3168038D1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3512821C1 (de) * | 1985-04-10 | 1986-10-30 | Adolf 8961 Weitnau Gudermann | Hydraulische Spannvorrichtung zum Spannen von Sägeblättern in Gatterrahmen |
DE3514728A1 (de) * | 1985-04-24 | 1986-10-30 | Fa. Röttger Jansen-Herfeld, 5630 Remscheid | Hydraulischer saegenspanner mit aeusserer dichtung |
CN115104448B (zh) * | 2022-06-08 | 2023-04-18 | 浙江师范大学 | 一种链条自动张紧的链锯 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2656961A1 (de) * | 1976-12-16 | 1978-06-22 | Jansen Fa R | Vorrichtung zum spannen von saegeblaettern in gatterrahmen von gattersaegen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE661577C (de) * | 1934-10-21 | 1938-06-22 | Alfons Wasserkampf | Vorrichtung zum gemeinsamen Spannen saemtlicher Saegen in Vollgattern |
DE1013412B (de) * | 1953-09-11 | 1957-08-08 | Jansen Fa R | Hydraulische Spannvorrichtung zum gemeinsamen Spannen saemtlicher Saegen in Vollgattern |
DE1169641B (de) * | 1960-01-26 | 1964-05-06 | Josef Thoeress | Hydraulischer Saegenspanner |
DE1453158A1 (de) * | 1963-08-16 | 1969-07-17 | Karl Rupprecht | Hydraulischer Saegenspanner |
DE1503928A1 (de) * | 1965-05-04 | 1969-08-07 | Andreas Bank | Spannvorrichtung fuer das Saegeblatt von Gattersaegen |
-
1981
- 1981-08-26 AT AT81106603T patent/ATE11020T1/de not_active IP Right Cessation
- 1981-08-26 DE DE8181106603T patent/DE3168038D1/de not_active Expired
- 1981-08-26 EP EP81106603A patent/EP0046977B1/fr not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2656961A1 (de) * | 1976-12-16 | 1978-06-22 | Jansen Fa R | Vorrichtung zum spannen von saegeblaettern in gatterrahmen von gattersaegen |
Non-Patent Citations (1)
Title |
---|
Der Vorrichtungsbau, 1. Teil, H.Mauri, Springer-Verlag, Berlin, 1957, Seite 20 * |
Also Published As
Publication number | Publication date |
---|---|
DE3168038D1 (en) | 1985-02-14 |
EP0046977A2 (fr) | 1982-03-10 |
EP0046977A3 (en) | 1983-02-16 |
ATE11020T1 (de) | 1985-01-15 |
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