US3581783A - Lubricating means for chain saw bar - Google Patents
Lubricating means for chain saw bar Download PDFInfo
- Publication number
- US3581783A US3581783A US360710*[A US3581783DA US3581783A US 3581783 A US3581783 A US 3581783A US 3581783D A US3581783D A US 3581783DA US 3581783 A US3581783 A US 3581783A
- Authority
- US
- United States
- Prior art keywords
- groove
- tangs
- guide bar
- sideplates
- hole
- 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
- B27B17/00—Chain saws; Equipment therefor
- B27B17/12—Lubricating devices specially designed for chain saws
Definitions
- the present invention relates to a chain saw guide bar having grooves along its longitudinal edges for guiding the saw chain, and having a lubricating hole in the wall of the groove for supplying oil to the chain.
- Such constructions have previously had the disadvantage that the hole easily becomes clogged by sawdust collecting in the groove.
- the present in vention is an improvement which overcomes the difficulties that have been encountered in maintaining proper lubrication of saw chains and guide bar assemblies. Accordingly, it is an object of the present invention to'provide improved chain saw constructions It is a further object to provide improved guide bars which ensure the proper lubricating of saw chains operating in combination therewith. Another object is to provide for the above with structures which are simple, sturdy, dependable and adaptable to various conditions of operation and use.
- a chain saw of a standard known type is provided with a special guide bar.
- the drawings of the present application show the guide bar and saw chain, with the guide bar having an oil hole in the wall of the groove at the level of the path of the tangs of the center links, and the groove is shallow adjacent that hole.
- the arrangement is such that oil entering the hole is maintained at that level and is picked up by the tangs of the center links, so that each tang carries a film of oil with it longitudinal along the groove.
- the raised bottom wall of the groove at the shallow portion presents an elongated, smooth curve and the passing tangs prevent the accumulation of sawdust adjacent the oil hole. Hence, the oil hole does not become plugged and the disadvantages of the prior arrangements are avoided.
- FIG. 1 is a sectional view of a guide bar and a portion of an endless saw chain, constitutes one embodiment of the invention.
- FIGS. 2 and 3 are similar views showing other embodiments of the guide bar.
- the guide bar of FIG. 1 comprises a center plate positioned between two sideplates 11, only one of which is shown and all of the plates are welded together.
- Sideplates 11 are wider than center plate 10 so that at each side of the guide bar the edges 16 of the sideplates are above the edge 22 of the center plate, and the edges are parallel.
- there is a groove 12 along each side of the guide bar having a bottom surface 22 formed by the edge of the center plate.
- the guide bar is mounted as an operating component of a chain saw not shown having a driving sprocket at the arcuate right-hand end of the guide bar.
- a portion of an endless saw chain is shown, which is mounted on the driving sprocket and the guide bar, and has side links 14 and 15 and center links 17.
- Side links 14 and 15 rest upon the longitudinal edges 16 of the side plates 11, and center links.13 are the driving links which have tangs or teeth 17 which are engaged by the driving sprocket and which project into groove 12 as they move along the guide bar.
- tangs 17 guide the chain saw, while the side links provide the support in the general plan of the guide bar.
- Links 15 are cutter links of known construction, and the chain moves toward the left at the top of FIG.
- a lubricating opening or oil hole 23 is provided in the one sideplate 11 which opens into groove 12 sothat oil can be delivered to the saw chain.
- the other sideplate has no such oil hole, so that. oil entering the hole is retained in groove 12.
- the center of the oil hole has its center slightly above line 19 and its upper edge is spaced from the upper edge 16 of the sideplate a distance which is slightly less than the diameter of the hole.
- Adjacent oil hole 23, center plate 10 has a portion 30 which extends upwardly from the bottom of the groove to substantially the level of line 19 and thus slightly above the bottom edge of hole 23.
- Portion 30 represents a surface which is a segment of a cylinder and produces a shallow zone in the groove, longitudinally in both directions from hole 23.
- Oil hole 23 is circular in cross section and is generally above the top surface 29 of portion 30.
- the top edges 16 of sideplates 11 tend to wear down so that path 19 of the lower ends of tangs 17 is closer to the bottom surface 22 of groove 12.
- the bottom ends of the tangs also wear away the top of portion 29 so that to expose the entire oil hole.
- the top surface 29 of portion 30 is above the level represented by the broken line 22a, which is an extension of the adjacent bottom surface 22 of groove 12.
- center plate 10 is of relatively soft metal so that it is readily worn away by the bottoms of the tangs.
- Insert 31 is provided in place of the portion 30 of FIG. 1.
- Insert 31 has an anchor portion 32 which mates with an anchor groove in the center plate 10.
- insert 31 is a plastic and it wears away readily so that its top surface is always at the level 19 of the bottom ends of the tangs. However, the plastic yields under pressure and it maybe extended to the right along the groove 12.
- insert 33 of aluminum wire is provided in place of raised portion 30 of FIG. 1.
- the ends 34 of insert 33 are formed into hooks which are anchored in bores in the edge of center plate 10.
- the center of insert 33 is bowed upwardly so that it has a spring action.
- the top surface of the insert may be worn away by the bottom of the tangs, but the insert is also yieldable so that it can be pushed downwardly by the tangs.
- the insert may be of some other material than aluminum that is soft enough to be worn away by the tangs or is resilient enough to yield.
- the operation is generally as described in connection with FIG. 1. It is understood that the oil hole may be oblong under some conditions of use.
- a guide bar having a pair of sideplates- .and a center plate rigidly mounted therebetween, each of said plates having longitudinal side edges extending along the opposite sides of the longitudinal centerline of the guide bar, and an endless saw chain mounted upon said guide bar and comprising a series of interconnected side links and center links, said edges of said sideplates upon each side of the guide bar presenting supporting surfaces in the single plane upon which the side links of the chain saw move along and are supported, each side edge of said .center plate being spaced inwardly with respect to the adjacent side edges of said sideplates whereby a groove is provided said center links having tangs which are positioned within and move along said groove from a driving sprocket to the nose end of the guide bar, said groove having a depth which'is generally greater than the distance of said tangs extend therein whereby the bottom ends of said tangs move along a path which is spaced from the bottom of said groove, said guide bar including a lubricating hole in one of
- said retainer portion comprises a metal strip having central bowed and hooked ends and wherein said center plate has recess in which said ends are positioned.
- a guide bar for a chain saw the combination of, a pair of sideplates and a center plate rigidly mounted therebetween, each of said plates having longitudinal side edges extending along the opposite sides of the longitudinal centerline of the guide bar, said edges of said sideplates upon each side of the guide bar presenting supporting surfaces in the single plane upon which the side links of the chain saw move along and are supported, each side edge of said center plate being spaced inwardly with respect to the adjacent side edges of said sideplates whereby a groove is provided within which the tangs of the center links of the saw chain are positioned said guide bar including a lubricating hole in one of said sideplates extending to said groove to deliver lubricant at a level in said groove adjacent the lower portion of the tangs and said groove being shallow adjacent said lubricating hole with the bottom of the groove being formed by a surface which is at substantially the level of the path of the lower ends of the tangs whereby lubricant entering said hole is delivered to said surface and is picked up and carried away by the movement
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1315568A SE321072C (de) | 1968-04-30 | 1968-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3581783A true US3581783A (en) | 1971-06-01 |
Family
ID=20296918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US360710*[A Expired - Lifetime US3581783A (en) | 1968-04-30 | 1969-09-24 | Lubricating means for chain saw bar |
Country Status (2)
Country | Link |
---|---|
US (1) | US3581783A (de) |
SE (1) | SE321072C (de) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3870125A (en) * | 1973-02-02 | 1975-03-11 | Textron Inc | Guide bar oiling system for chain saw |
US4408393A (en) * | 1979-06-08 | 1983-10-11 | Bohumil Jerabek | Chain saw |
US4462439A (en) * | 1983-05-31 | 1984-07-31 | Dagenais Joseph E | Chain saw with single-wedge, chain-protecting chain support |
FR2585980A1 (fr) * | 1985-08-08 | 1987-02-13 | Stihl Andreas | Barre de guidage pour un chaine a scier d'une scie a moteur a chaine |
DE3729424A1 (de) * | 1987-09-03 | 1989-03-16 | Stihl Maschf Andreas | Fuehrungsschiene fuer die saegekette einer motorkettensaege und verfahren und vorrichtung zu ihrer herstellung |
US4819332A (en) * | 1987-02-26 | 1989-04-11 | Sugihara Rinki Co., Ltd. | Oil supply structure of chain saw |
FR2625129A1 (fr) * | 1987-12-17 | 1989-06-30 | Stihl Andreas | Dispositif de lubrification pour scie a chaine |
US5634273A (en) * | 1995-02-28 | 1997-06-03 | Andreas Stihl | Guide bar having an oil-feed channel |
EP0894584A1 (de) * | 1997-06-30 | 1999-02-03 | Dolmar GmbH | Führungsschiene für die Sägekette einer Motorsäge |
DE19547353B4 (de) * | 1995-02-28 | 2007-06-14 | Fa. Andreas Stihl | Führungsschiene mit einem Ölzufuhrkanal |
US20100147628A1 (en) * | 2007-05-17 | 2010-06-17 | S.T.L. Lubrifiants Inc. | System and method for lubricating a chain saw with grease |
USD771463S1 (en) * | 2014-07-16 | 2016-11-15 | Suehiro Seiko Kabushiki Kaisha | Guide bar for chain saw |
US20170210027A1 (en) * | 2016-01-23 | 2017-07-27 | Andreas Stihl Ag & Co. Kg | Hand-Guided Power Tool with a Guide Bar |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE812471C (de) * | 1948-10-03 | 1951-08-30 | Andreas Stihl | Kettenfuehrungsschiene fuer Kettensaegen mit auf der Seite des Handstueckes in der Fuehrungsnut vorgesehenen OElkammern |
US2765823A (en) * | 1953-02-12 | 1956-10-09 | George M Kneifl | Chain saw blade with oiling means |
US3292670A (en) * | 1963-03-29 | 1966-12-20 | Stihl Andreas | Saw chain for motor chain saws |
-
1968
- 1968-04-30 SE SE1315568A patent/SE321072C/sv unknown
-
1969
- 1969-09-24 US US360710*[A patent/US3581783A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE812471C (de) * | 1948-10-03 | 1951-08-30 | Andreas Stihl | Kettenfuehrungsschiene fuer Kettensaegen mit auf der Seite des Handstueckes in der Fuehrungsnut vorgesehenen OElkammern |
US2765823A (en) * | 1953-02-12 | 1956-10-09 | George M Kneifl | Chain saw blade with oiling means |
US3292670A (en) * | 1963-03-29 | 1966-12-20 | Stihl Andreas | Saw chain for motor chain saws |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3870125A (en) * | 1973-02-02 | 1975-03-11 | Textron Inc | Guide bar oiling system for chain saw |
US4408393A (en) * | 1979-06-08 | 1983-10-11 | Bohumil Jerabek | Chain saw |
US4462439A (en) * | 1983-05-31 | 1984-07-31 | Dagenais Joseph E | Chain saw with single-wedge, chain-protecting chain support |
FR2585980A1 (fr) * | 1985-08-08 | 1987-02-13 | Stihl Andreas | Barre de guidage pour un chaine a scier d'une scie a moteur a chaine |
DE3528433A1 (de) * | 1985-08-08 | 1987-02-19 | Stihl Maschf Andreas | Fuehrungsschiene fuer eine saegekette einer motorkettensaege |
US4819332A (en) * | 1987-02-26 | 1989-04-11 | Sugihara Rinki Co., Ltd. | Oil supply structure of chain saw |
US4996774A (en) * | 1987-09-03 | 1991-03-05 | Andreas Stihl | Guide bar for the saw chain of a motor-driven chain saw and a method and apparatus for producing the same |
DE3729424A1 (de) * | 1987-09-03 | 1989-03-16 | Stihl Maschf Andreas | Fuehrungsschiene fuer die saegekette einer motorkettensaege und verfahren und vorrichtung zu ihrer herstellung |
FR2622498A1 (fr) * | 1987-09-03 | 1989-05-05 | Stihl Andreas | Rail de guidage pour la chaine a scier d'une tronconneuse a chaine et procede et dispositif pour le fabriquer |
FR2625129A1 (fr) * | 1987-12-17 | 1989-06-30 | Stihl Andreas | Dispositif de lubrification pour scie a chaine |
US5634273A (en) * | 1995-02-28 | 1997-06-03 | Andreas Stihl | Guide bar having an oil-feed channel |
DE19547353B4 (de) * | 1995-02-28 | 2007-06-14 | Fa. Andreas Stihl | Führungsschiene mit einem Ölzufuhrkanal |
EP0894584A1 (de) * | 1997-06-30 | 1999-02-03 | Dolmar GmbH | Führungsschiene für die Sägekette einer Motorsäge |
US20100147628A1 (en) * | 2007-05-17 | 2010-06-17 | S.T.L. Lubrifiants Inc. | System and method for lubricating a chain saw with grease |
US8225907B2 (en) * | 2007-05-17 | 2012-07-24 | S.T.L. Lubrifiants Inc. | System and method for lubricating a chain saw with grease |
USD771463S1 (en) * | 2014-07-16 | 2016-11-15 | Suehiro Seiko Kabushiki Kaisha | Guide bar for chain saw |
US20170210027A1 (en) * | 2016-01-23 | 2017-07-27 | Andreas Stihl Ag & Co. Kg | Hand-Guided Power Tool with a Guide Bar |
US10166691B2 (en) * | 2016-01-23 | 2019-01-01 | Andreas Stihl Ag & Co. Kg | Hand-guided power tool with a guide bar |
Also Published As
Publication number | Publication date |
---|---|
SE321072C (de) | 1973-02-05 |
SE321072B (de) | 1970-02-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3581783A (en) | Lubricating means for chain saw bar | |
US8136436B2 (en) | Saw chain link with offset footprint | |
US3279508A (en) | Chain saw bar | |
US2962061A (en) | Chain saw supporting and guide bar | |
US20130319392A1 (en) | Hand-operated implement comprising a cutting chain for cutting mineral and metal materials | |
US3856358A (en) | Wear-resistant inserts for in surfaces of the links of cutter chains and the like to retard wear thereof | |
US3478787A (en) | Self-oiling means for saw chain links | |
US3191646A (en) | Chain saw bar | |
US8689666B2 (en) | Drive link with improved lubrication feature | |
US2765823A (en) | Chain saw blade with oiling means | |
US3170497A (en) | Solid toe router saw chain | |
US3292670A (en) | Saw chain for motor chain saws | |
US2792035A (en) | Saw chain | |
US2368092A (en) | Saw band for hard refractory materials | |
US2913020A (en) | Force-feed lubricated chain saw bar unit | |
US3124177A (en) | Chain saw machine | |
US2766979A (en) | Cutter or disintegrating chain with dirt scraping means | |
US2963055A (en) | Chain for motor chain saws | |
US2897857A (en) | Saw chain cutters with thin cutting portion and thick base | |
US3392819A (en) | Conveyor | |
US4063782A (en) | Long wall mining apparatus guide structure | |
US4693005A (en) | Guide bar for a saw chain of a motor-driven chain saw | |
US3777401A (en) | Saw chain lubrication means | |
US4211007A (en) | Chain saw guide bar and sawdust plate | |
US4027793A (en) | Scraper chain conveyor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SANTRADE LTD., ALPENQUAI 12, CH-6002, LUCERNE, SWI Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SANDVIK AKTIEBOLAG, A CORP. OF SWEDEN;REEL/FRAME:004085/0132 Effective date: 19820908 |