SE438812B - Motor saw host - Google Patents

Motor saw host

Info

Publication number
SE438812B
SE438812B SE7909734A SE7909734A SE438812B SE 438812 B SE438812 B SE 438812B SE 7909734 A SE7909734 A SE 7909734A SE 7909734 A SE7909734 A SE 7909734A SE 438812 B SE438812 B SE 438812B
Authority
SE
Sweden
Prior art keywords
saw blade
nose wheel
channel portion
bearing
recess
Prior art date
Application number
SE7909734A
Other languages
Swedish (sv)
Other versions
SE7909734L (en
Inventor
G G E Pantzar
Original Assignee
Sandvik Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sandvik Ab filed Critical Sandvik Ab
Priority to SE7909734A priority Critical patent/SE438812B/en
Publication of SE7909734L publication Critical patent/SE7909734L/en
Publication of SE438812B publication Critical patent/SE438812B/en

Links

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Rolling Contact Bearings (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

The invention refers to a host for a power saw comprised of two side plates and one on a hub in between the stored nose sprocket, at which lubricant is introduced into the nose sprocket and its layers via a canal which is made on the outside of the one side plate. In accordance with the invention the designated lubrication canal is separated from the nose sprocket by a wall, which is made in one piece with the side plate.<IMAGE>

Description

7909734-1 Fràn denna mynning göres en urtagning (18) pà sidoplätens utsida, vilken urtagning sträcker sig till ett omràde innanför vilket nos- hjul med lager är beläget. Frán denna andra ände av urtagningen göres ett genomgående häl (19) i sidopláten så att hálet mynnar vid lagerbanan, varigenom olja som föres in genom hålet kan nä in till lagret. För att bilda en kanal av urtagningen i sidoplátens utsida placeras ett lock (20) över densamma sä att ett visst ut- rymme uppstár mellan lockets undersida och urtagningens botten. 7909734-1 From this mouth a recess (18) is made on the outside of the side plate, which recess extends to an area inside which the nose wheel with bearing is located. From this other end of the recess a continuous heel (19) is made in the side plate so that the heel opens at the bearing race, whereby oil which is introduced through the hole can reach into the bearing. To form a channel of the recess in the outside of the side plate, a lid (20) is placed over it so that a certain space arises between the underside of the lid and the bottom of the recess.

Vid smörjning av lagret strömmar olja fràn en central tank i mo- torsägen in genom sàgsvärdets bakre del, genom det längsgàendu späret, ut genom det första genomgående hålet, förbi urtagningen och slutligen in genom det andra genomgående hàlet till lagret, i detta fall ett rullager.When lubricating the bearing, oil from a central tank in the chainsaw flows in through the rear part of the saw blade, through the longitudinal cutter, out through the first through hole, past the recess and finally in through the second through hole to the bearing, in this case a roller bearing .

Fördelen med denna anordning jämfört med den kända enligt amerikan- ska patentskriften 3.044.506 är, att man kan uppnå bàde god smörj- ning av lagret samt bibehàlla en plan och jämn yta pà de delar av sidoplàtarnas insidor, som omger noshjulet, vilket betyder förbätt- rad livslängd och driftssäkerhet hos sàgsvärdet. En annan fördel med denna oljekanalskonstruktion är att lagerrullarna eller -kulorna utövar pumpverkan pà oljan, varigenom oljan sugs in i lagret, när de passerar oljekanalsmynningen. Detta innebär, att man átminstone vid mindre sàgsvärd kan använda noshjulet som pump för oljan, varigenom man slipper anordna en särskild oljepump.The advantage of this device compared to the one known according to U.S. Pat. No. 3,044,506 is that it is possible to achieve both good lubrication of the bearing and to maintain a flat and even surface on the parts of the insides of the side plates which surround the nose wheel, which means improvement. range of service life and reliability of the saw blade. Another advantage of this oil channel construction is that the bearing rollers or balls exert a pumping action on the oil, whereby the oil is sucked into the bearing when they pass the oil channel orifice. This means that, at least for smaller saw blades, the nose wheel can be used as a pump for the oil, so that a special oil pump is not provided.

En tredje fördel med denna konstruktion är att oljan smörjer inte bara noshjul och lager utan även kedjan vid dess passage förbi noshjulet. Detta innebär, att ingen särskild kanal till kedje~ spåret är nödvändig vid detta sàgsvärd.A third advantage of this construction is that the oil lubricates not only the nose wheel and bearings but also the chain when it passes the nose wheel. This means that no special channel to the chain track is necessary for this saw blade.

En fjärde fördel med konstruktionen är att den radiellt utàt strömmande oljan rengör noshjulets sidor från spàn och andra föroreningar.A fourth advantage of the construction is that the oil flowing radially outwards cleans the sides of the nose wheel from chips and other contaminants.

Pà ritningen har vi endast visat en smörjoljekanal pa utsidan av sàgsvärdets ena sidoplát. Emellertid kan, om sä befinnes önskvärt, placeras även en smörjoljekanal pá utsidan av svärdets andra sidoplàt.In the drawing, we have only shown a lubricating oil channel on the outside of one side plate of the saw blade. However, if desired, a lubricating oil channel can also be placed on the outside of the second side plate of the sword.

Claims (3)

79097lšl+~1 Patentkrav79097lšl + ~ 1 Patentkrav 1. l. Motorsàgsvärd som vid sin fria ände är försett med ett noshjul (13) beläget mellan sidoplàtar (11, 12) i svärdet och lagrat pá ett nav (14) medelst ett rullningslager (15), varvid smörjmedel föres till lagret från en central tank till rullningslagret (15) via en kanal (16, 18) i sàgsvärdet, varvid ett första kanalparti (16) sträcker sig fràn sag- svärdets bakre del till noshjulets periferi, och ett andra kanalparti (18) sträcker sig frán noshjulets periferi till rullningslagret (15) och är utformat i en urtagning (18) i en av sidoplàtarna, k ä n n e t e c k n a t av, att det andra kanalpartiet (18) är avgränsat fràn noshjulet av en vägg, som är utförd i ett stycke med sidoplàten.1. A chainsaw bar provided at its free end with a nose wheel (13) located between side plates (11, 12) in the bar and mounted on a hub (14) by means of a rolling bearing (15), lubricant being fed to the bearing from a central tank to the roller bearing (15) via a channel (16, 18) in the saw blade, a first channel portion (16) extending from the rear part of the saw blade to the periphery of the nose wheel, and a second channel portion (18) extending from the periphery of the nose wheel to the rolling bearing (15) and is formed in a recess (18) in one of the side plates, characterized in that the second channel portion (18) is delimited from the nose wheel by a wall which is made in one piece with the side plate. 2. Sàgsvärd enligt krav 1 omfattande en mittplàt mellan sidoplàtarna, k ä n n e t e c k n a t av, att det första kanalpartiet (16) är format genom en längsgående urtagning i en mellan sidoplátarna (ll, 12) belägen mittplàt (10).A saw blade according to claim 1 comprising a center plate between the side plates, characterized in that the first channel portion (16) is formed by a longitudinal recess in a center plate (10) located between the side plates (11, 12). 3. Sàgsvärd enligt nàgot av föregående krav, k ä n n e - t e c k n a t av, att det andra kanalpartiet (18) har formen av en urtagning fràn ena sidoplátens (ll) utsida, och är täckt med ett lock (20) anbragt pà sagda utsida.A saw blade according to any one of the preceding claims, characterized in that the second channel portion (18) has the shape of a recess from the outside of one side plate (II), and is covered with a lid (20) arranged on said outside.
SE7909734A 1979-11-26 1979-11-26 Motor saw host SE438812B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE7909734A SE438812B (en) 1979-11-26 1979-11-26 Motor saw host

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7909734A SE438812B (en) 1979-11-26 1979-11-26 Motor saw host

Publications (2)

Publication Number Publication Date
SE7909734L SE7909734L (en) 1981-05-27
SE438812B true SE438812B (en) 1985-05-13

Family

ID=20339394

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7909734A SE438812B (en) 1979-11-26 1979-11-26 Motor saw host

Country Status (1)

Country Link
SE (1) SE438812B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001559A1 (en) * 1986-09-02 1988-03-10 Oesterman Bror Erik Chain saw
US4947550A (en) * 1988-03-24 1990-08-14 Sandvik Ab Guidebar with oil channels
US5038474A (en) * 1989-03-30 1991-08-13 Electrolux Motor Aktiebolag Device for a circular saw
WO2016095945A1 (en) 2014-12-15 2016-06-23 Husqvarna Ab Chain saw

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001559A1 (en) * 1986-09-02 1988-03-10 Oesterman Bror Erik Chain saw
US4947550A (en) * 1988-03-24 1990-08-14 Sandvik Ab Guidebar with oil channels
US5038474A (en) * 1989-03-30 1991-08-13 Electrolux Motor Aktiebolag Device for a circular saw
WO2016095945A1 (en) 2014-12-15 2016-06-23 Husqvarna Ab Chain saw

Also Published As

Publication number Publication date
SE7909734L (en) 1981-05-27

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