EP0894584A1 - Führungsschiene für die Sägekette einer Motorsäge - Google Patents
Führungsschiene für die Sägekette einer Motorsäge Download PDFInfo
- Publication number
- EP0894584A1 EP0894584A1 EP98111780A EP98111780A EP0894584A1 EP 0894584 A1 EP0894584 A1 EP 0894584A1 EP 98111780 A EP98111780 A EP 98111780A EP 98111780 A EP98111780 A EP 98111780A EP 0894584 A1 EP0894584 A1 EP 0894584A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groove
- guide rail
- guide
- packing
- groove base
- 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- Withdrawn
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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
- B27B17/00—Chain saws; Equipment therefor
- B27B17/12—Lubricating devices specially designed for chain saws
Definitions
- the invention relates to a guide rail for the saw chain of a motor chain saw according to the preamble of claim 1.
- a guide rail for the saw chain is one Chain saw with a convex filler integrated into the guide groove known, which partially covers the lubrication hole by the distance to reduce between the bottom of the groove and the clearing members, and thus one if possible complete capture of the lubricant by the foot parts of the To ensure clearing elements.
- the lubricant gently rubs onto the groove base on both sides, especially on the side facing the drive. This goes to lost a lubricant on the bottom of the groove because the clearing members with does not come into contact with it and flows along the other Guide rail and emerges at undesirable places.
- DE-35 28 433 C2 shows instead of that described in US 3,581,783 Packing a trapezoidal packing whose one surface is parallel runs to the bottom of the groove. Even if this is the route for contact between clearing elements and lubricants, a drainage of the Lubricant not prevented over the edges of the packing on the groove base are, so that similar problems as in US 3,581,783 occur.
- DE-37 29 424 C2 describes a packing with a largely surface aligned parallel to the groove base, but in contrast to the Teaching according to DE 35 28 433 C2 on the one hand in the field of Lubrication hole is so deep that it is no longer covered, and to other in the surface is significantly enlarged to the longest possible Contact area between clearing elements and lubricant on the packing to reach. Due to the deepening there is a relatively larger one Amount of lubricant available because the clearing elements contain the lubricant take out of the recess. However, in this case, too considerable part of the lubricant distributed on the packing from Packing body and thus gets to the bottom of the groove, what the described follow.
- the invention has for its object a guide rail for To develop a chain saw for a chain saw that allows draining of lubricant from the lubrication holes along the guide groove prevent the clearing members from being adequately wetted with lubricant and wear at the interface between packing and Keep clearing elements as low as possible.
- the guide groove is in the groove base a packing, hereinafter called backstop, used the one Prevents the lubricant from flowing out.
- This backstop lies preferably on the drive side of the lubrication hole and thus in the running direction the chain in front of the lubrication hole. It is advantageously dimensioned such that its greatest increase in the groove base the distance of a lower hook corresponds to a clearing element from the bottom of the groove.
- Lubricant emerging from the lubrication hole flows up to the drive end back to the backstop, so that between backstop and Lubrication hole forms a reservoir of lubricant.
- the continuous ones Clearing members are immersed there and come into sufficient contact with them large amounts of lubricant. Because the top point of the backstop otherwise the only part of the lock that is in contact with the clearers There is little wear and tear on contact.
- the lubrication hole is in a recess of the bottom of the groove.
- the depression is preferred of the groove base executed so that the drive-side boundary wall of the The depression drops approximately at right angles to the groove base, in the direction of the Chain rises flat and takes up the entire width of the groove base.
- the backstop can be attached to the bottom of the groove or in one Deepening of the groove base to be anchored.
- a rectangular backstop used.
- the backstop can be made of plastic or a non-ferrous metal be. This allows at the narrow contact point between the clearing member and Backstop that minimizes wear from the outset, none at all Damage to the clearing elements may occur. Besides, these are materials inexpensive and easy to replace, so that the invention Backstop, especially in the preferred, simple one Embodiment, classified as a wearing part and easily replaced can be.
- the constructional manufacturing tolerances of the guide groove can completely by inserting the backstop be balanced.
- the distance between Backstop and the clearing element in relation to the inlet angle which i.a. is determined by the size of the sprocket, the Functionality further optimized.
- Fig. 1 shows a schematic representation of a motor chain saw 1 with Guide rail 2, which is releasably attached to the saw body. On the edge of the Guide rail 2 runs a saw chain 3 in the direction P. On the A lubrication hole 9 can be seen in the guide rail.
- the saw chain 3 has in the middle in the usual way
- Side members 5 and 6 are clearing members 4, which have a foot part 4a have, which engages in a guide groove 8 of the rail 2.
- Side links recognizable as the cutting links 5 or Links 6 formed and with the clearing members 4 by rivets 7 are articulated.
- the guide groove 8 is from the groove base 8a and limited to the two groove walls 8b, the end face 8c each one Forms a support surface for the surrounding side links.
- the foot parts 4a of the Clearing members 4 do not extend down to the groove base 8a. It can significant fluctuations in the groove depth occur due to Manufacturing tolerances are conditional.
- the guide rail 2 has near its rear end at least one lubrication bore 9 lying perpendicular to the rail plane, which is in the region of the guide groove 8 close to the groove base 8a and one of the Push through the groove walls 8b.
- the groove base 8a is in the area of Lubrication hole lowered so that the lubrication hole in a recess of the groove bottom 8d enters.
- the depression of the groove bottom 8d is so held that the drive-side boundary wall of the recess 8d drops approximately at right angles to the groove base 8a and in the running direction of the Chain (P) rises flat.
- a packing 10 is inserted into the bottom of the groove. This is cuboid and opposed at an angle of 45 ° the direction of movement is pushed into the groove base and fixed there.
- This Packing can be made of plastic or non-ferrous metal, so that Räumglieder 4 on the small contact area are not damaged, and is adjust the height to the distance of the chain links from the groove base.
- Lubricant entering through the lubrication hole fills the recess in the Groove bottom 8b and rises on the packing to the top of the barrier. Consequently the lubricant is prevented from running out and other sufficient lubricant in a reservoir (11) in which the foot parts 4a of the clearing members 4 engage. An expiration the oil in the direction of the drive part is thus prevented.
- the packing 10 is classified as a wearing part and can easily be removed from the guide groove 8 be removed.
Abstract
Description
Claims (9)
- Führungsschiene (2) für die Sägekette (3) einer Motorkettensäge (1) mit einer randseitigen, zum Eingriff von Räumgliedern (4) der Sägekette (3) bestimmten Führungsnut (8) und äußeren, von den Stirnflächen (8c) der Nutwandungen (8b) gebildeten Stützflächen für die Seitenglieder (5, 6) der Sägekette (3) und mit mindestens einer in die Führungsnut (8) mündenden Schmierbohrung (9) und einem in der Führungsnut (8) angeordneten Füllkörper (10), dessen höchster Punkt eine Überhöhung des Nutgrundes (8a) bildet, dadurch gekennzeichnet, daß der Füllkörper (10) beabstandet von der Schmierbohrung (9) angeordnet ist.
- Führungsschiene (2) nach Anspruch 1, dadurch gekennzeichnet, daß die oberhalb des Nutgrundes (8a) liegenden Flächen (10a, 10b) des Füllkörpers nicht parallel zum Nutgrund (8a) verlaufen.
- Führungsschiene (2) nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der in der Führungsnut (8) angeordnete Füllkörper (10) an seiner höchsten Stelle den gleichen Abstand vom Nutgrund (8a) hat, wie der Fußteil (4a) der Räumglieder (4).
- Führungsschiene (2) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Schmierbohrung (9) in einer Vertiefung (8d) des Nutgrundes (8a) mündet.
- Führungsschiene (2) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Füllkörper (10) mindestens bis auf den Nutgrund (8a) reicht und in den Führungsschienen verankert und/oder fixiert ist.
- Führungsschiene (2) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Füllkörper (10) im Nutgrund (8a) verankert und/oder fixiert ist.
- Führungsschiene (2) nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß die antriebsseitige Begrenzungswand der Vertiefung (8d) annähernd rechtwinklig zum Nutgrund (8a) abfällt und in Laufrichtung der Kette flach ansteigt.
- Führungsschiene (2) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Füllkörper (10) quaderförmig ist.
- Führungsschiene (2) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Rücklaufsperre aus Kunststoff oder einem NE-Metall besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997127782 DE19727782C2 (de) | 1997-06-30 | 1997-06-30 | Führungsschiene für die Sägekette einer Motorsäge |
DE19727782 | 1997-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0894584A1 true EP0894584A1 (de) | 1999-02-03 |
Family
ID=7834107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98111780A Withdrawn EP0894584A1 (de) | 1997-06-30 | 1998-06-26 | Führungsschiene für die Sägekette einer Motorsäge |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0894584A1 (de) |
DE (1) | DE19727782C2 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3581783A (en) * | 1968-04-30 | 1971-06-01 | Sandvikens Jernverks Ab | Lubricating means for chain saw bar |
CA1045519A (en) * | 1976-12-10 | 1979-01-02 | Robin A. Plumbley | Guide bar with saw chain oiling feature |
DE3528433A1 (de) * | 1985-08-08 | 1987-02-19 | Stihl Maschf Andreas | Fuehrungsschiene fuer eine saegekette einer motorkettensaege |
EP0333354A1 (de) * | 1988-03-18 | 1989-09-20 | Blount, Inc. | Geschichtete Führungsschiene für eine Kettensäge |
DE19547353A1 (de) * | 1995-02-28 | 1996-08-29 | Stihl Maschf Andreas | Führungsschiene mit einem Ölzufuhrkanal |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE873133C (de) * | 1940-01-19 | 1953-04-13 | Andreas Stihl | Schmiereinrichtung fuer Kettensaegen |
US2765823A (en) * | 1953-02-12 | 1956-10-09 | George M Kneifl | Chain saw blade with oiling means |
DE3729424A1 (de) * | 1987-09-03 | 1989-03-16 | Stihl Maschf Andreas | Fuehrungsschiene fuer die saegekette einer motorkettensaege und verfahren und vorrichtung zu ihrer herstellung |
-
1997
- 1997-06-30 DE DE1997127782 patent/DE19727782C2/de not_active Expired - Lifetime
-
1998
- 1998-06-26 EP EP98111780A patent/EP0894584A1/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3581783A (en) * | 1968-04-30 | 1971-06-01 | Sandvikens Jernverks Ab | Lubricating means for chain saw bar |
CA1045519A (en) * | 1976-12-10 | 1979-01-02 | Robin A. Plumbley | Guide bar with saw chain oiling feature |
DE3528433A1 (de) * | 1985-08-08 | 1987-02-19 | Stihl Maschf Andreas | Fuehrungsschiene fuer eine saegekette einer motorkettensaege |
EP0333354A1 (de) * | 1988-03-18 | 1989-09-20 | Blount, Inc. | Geschichtete Führungsschiene für eine Kettensäge |
DE19547353A1 (de) * | 1995-02-28 | 1996-08-29 | Stihl Maschf Andreas | Führungsschiene mit einem Ölzufuhrkanal |
Also Published As
Publication number | Publication date |
---|---|
DE19727782A1 (de) | 1999-01-28 |
DE19727782C2 (de) | 1999-10-14 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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AK | Designated contracting states |
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18D | Application deemed to be withdrawn |
Effective date: 20020103 |