EP1192025B1 - Saw device and saw blade unit therefor - Google Patents
Saw device and saw blade unit therefor Download PDFInfo
- Publication number
- EP1192025B1 EP1192025B1 EP00930040A EP00930040A EP1192025B1 EP 1192025 B1 EP1192025 B1 EP 1192025B1 EP 00930040 A EP00930040 A EP 00930040A EP 00930040 A EP00930040 A EP 00930040A EP 1192025 B1 EP1192025 B1 EP 1192025B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- saw
- driving shaft
- cone surface
- saw blade
- 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
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
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
- B27B5/34—Devices for securing a plurality of circular saw blades on a single saw spindle; Equipment for adjusting the mutual distance
Definitions
- the sleeve 6 has an outwardly directed flange 20 that carries a sealing ring 21.
- a number of threaded holes 22 are recessed for equally many screws 23, by means of which a clamping ring 24 may be fastened in a direction towards the end surface of the sleeve.
- the clamping ring 24 has the purpose of fixing the saw blades 7 and a number of rings 25 on the sleeve 6. Of these rings, four serve as spacing elements between the five saw blades, while the two rings on the outside of each outer saw blade mainly have the purpose of clamping each outer saw blade against the adjacent inner spacing ring.
- a special slit-ring designated 33 is provided outside the external, thinnest end section 12' of the shaft part.
- FIG. 3 shows the device according to the invention in an assembled and mounted state.
- the rear cone surface 14 of the sleeve 6 bears against the cone surface 36 of the ring 34.
- the cone surface 28 on the conical ring 27 is laid against the front cone surface 15 on the inside of the sleeve.
- the cylindrical inner surface of the conical ring 27 bears against the outside of the slit-ring 33, which in turn is mounted snugly on the shaft section 12'.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
Description
- Fig. 1
- is a machine in which are included two saw devices according to the invention, the one saw device being shown with a saw blade unit mounted on the appurtenant driving shaft, while the other one is shown with the saw blade unit being demounted from the driving shaft,
- Fig. 2
- is an enlarged, partly cut-exploded view showing on one hand a front part of the driving shaft, and on the other hand said saw blade unit being separated from the driving shaft,
- Fig. 3
- is a longitudinal section showing the saw blade unit mounted on the driving shaft,
- Fig. 4
- is a side view of an individual saw blade, and
- Fig. 5
- is a cut exploded view showing different saw blades and spacing elements separated from a sleeve included in the saw blade unit.
Claims (9)
- A saw device including a driving shaft (1) that is rotatable about a geometrical axis of rotation (A), said shaft having a plurality of inter-parallel saw blades (7), which are co-rotatively connected to a sleeve (6) that is detachably located on a front cantilever part (9) of the driving shaft, which sleeve in turn is co-rotatively connected to the driving shaft, and on which there are, on one hand, spacing elements (25) between adjacent saw blades, and, on the other hand, means (20, 24) for holding the saw blades and the spacing elements at positions fixed axially along the sleeve, thereby forming an assembly that may be separately mounted on and demounted from said shaft part (9), characterized in that the sleeve (6) has, on one hand, a rear internal cone surface (14) that widens in a rearward direction and is applied against an external cone surface (36) on or in connection to the driving shaft, said external cone surface (36) tapering in a forward direction, and on the other hand a front internal cone surface (15) that widens in a rearward direction and is laid against an external cone surface (28) on a centering conical ring (27), said external cone surface (28) tapering in a rearward direction, said conical ring (27) being axially tightenable by means of a clamping means (29) that is directly or indirectly connected to the driving shaft.
- Saw device according to claim 1, characterized in that the clamping device (29) is connected to the driving shaft via a thread-joint.
- Saw device according to claim 2, characterized in that the clamping device consists of a nut (29) bearing against the conical ring, the internal thread of said nut being engaged with an external thread on a central cylinder-shaped carrier body (30) that is detachably connected with the front end of the driving shaft via a screw joint (32).
- Saw device according to claim 3, characterized in that the carrier body (30) is applied against a substantially cylindrical slit-ring (33) that encompasses a front thin end section (12') of the driving shaft, the conical ring (27) being arranged outside the slit-ring (33).
- Saw device according to any one of the preceding claims,
characterized in that the front cone surface (15) of the sleeve (6) is formed on a thickened portion (16) of the sleeve and transposes into a rotation-symmetrical internal surface (17) of a smallest diameter that cooperates with an equally rotation-symmetrical external surface on a reduced section (12) of the driving shaft, the part of the shaft that extends between the reduced section (12) and the area of the rear end of the sleeve having an outer diameter that is throughout smaller than the inner diameter of the corresponding part of the sleeve, whereby a ring-shaped gap (37) is formed between the inside of the sleeve and the outside of the driving shaft in order to facilitate the mounting and demounting, respectively, of the sleeve. - A saw blade unit for a saw device according to any one of the preceding claims, comprising a sleeve (6) and a plurality of saw blades (7) that are co-rotatively connectible to the sleeve and provided to be kept apart by means of spacing elements (25), the sleeve having means (20, 24) for holding the saw blades and the spacing elements in positions that are axially fixable along the sleeve, characterized in that the sleeve has, on one hand, a rear internal cone surface (14) that widens in a rearward direction, and, on the other hand, a front internal cone surface (15) that widens in a forward direction.
- Saw blade unit according to claim 6,
characterized in that the sleeve (6) on its outside has a plurality of tangentially separated, axially extending grooves for the accomodation of a number of protrusions (39) provided in connection with a center hole (38) in each saw blade, said protrusions having the purpose of guaranteeing a co-rotative connection between the saw blade and the sleeve. - Saw blade for a saw blade unit according to claim 6 or 7, comprising a peripherical rim of teeth and a center hole (38),
characterized in that a number of separated protrusions (39) for engagement with a number of tangentially separated, axially extending grooves in the envelope surface of the sleeve (6) are provided in the vicinity of the center hole (38). - Saw blade according to claim 8, characterized in that in a region between the center hole (38) and the tooth rim (40) there are a number of recesses (41) for cutting machining elements that have the purpose of fine-trimming a saw cut accomplished by the teeth.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9901697 | 1999-05-10 | ||
SE9901697A SE514104C2 (en) | 1999-05-10 | 1999-05-10 | Sawing device and saw blade unit for this |
PCT/SE2000/000908 WO2000067967A1 (en) | 1999-05-10 | 2000-05-08 | Saw device and saw blade unit therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1192025A1 EP1192025A1 (en) | 2002-04-03 |
EP1192025B1 true EP1192025B1 (en) | 2003-07-23 |
Family
ID=20415538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00930040A Expired - Lifetime EP1192025B1 (en) | 1999-05-10 | 2000-05-08 | Saw device and saw blade unit therefor |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1192025B1 (en) |
AT (1) | ATE245514T1 (en) |
AU (1) | AU4793300A (en) |
DE (1) | DE60004056T2 (en) |
SE (1) | SE514104C2 (en) |
WO (1) | WO2000067967A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT521963B1 (en) * | 2019-01-30 | 2020-07-15 | Mag Ll M Christian Haeupl | Double spindle circular saw for sawing wood |
TWI736187B (en) | 2020-03-20 | 2021-08-11 | 張聰捷 | Woodworking saw blade locking structure |
CN113492443B (en) * | 2020-04-01 | 2022-07-26 | 张聪捷 | Locking structure for carpentry saw blade |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI89468C (en) * | 1991-11-18 | 1993-10-11 | Kauko Rautio | Fixing system for dividing bite and edge milling |
-
1999
- 1999-05-10 SE SE9901697A patent/SE514104C2/en not_active IP Right Cessation
-
2000
- 2000-05-08 DE DE60004056T patent/DE60004056T2/en not_active Expired - Fee Related
- 2000-05-08 EP EP00930040A patent/EP1192025B1/en not_active Expired - Lifetime
- 2000-05-08 AU AU47933/00A patent/AU4793300A/en not_active Abandoned
- 2000-05-08 WO PCT/SE2000/000908 patent/WO2000067967A1/en active IP Right Grant
- 2000-05-08 AT AT00930040T patent/ATE245514T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9901697D0 (en) | 1999-05-10 |
ATE245514T1 (en) | 2003-08-15 |
DE60004056T2 (en) | 2004-06-03 |
AU4793300A (en) | 2000-11-21 |
SE514104C2 (en) | 2001-01-08 |
DE60004056D1 (en) | 2003-08-28 |
WO2000067967A1 (en) | 2000-11-16 |
SE9901697L (en) | 2000-11-11 |
EP1192025A1 (en) | 2002-04-03 |
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