DE1905301A1 - Power chain saw - Google Patents

Description

PATENT Attorney DIPL.-ING. HANS LANGOSCH

7OOO STUTTGART · HERDWEG 62 · TELEPHONE [O7ID 296523

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SOLO Kleinmotoren GmbH 7034- Maichingen / Württ.

Chainsaw

The invention relates to a portable chain saw old to a saw, around whom a saw chain runs, the sound is driven by a Xette drive pinion arranged on the crankshaft of an internal combustion engine becomes and old rigidly old to the SS converted rerbundanen handles.

In a known design, the internal combustion engine forms a rigid body with the associated fuel tank and oil tank and the handles, to which the handlebar is attached. the τοη ier Brennkraftaasohine staaaenden Solswimgsngen over the handles on the BAganfübrer, ύ * λ in the backside Jzsiüdiiagea and even su gasundlteitlic & en Sg h ^ 4 1 gwn £ ¥ n fä & pen can · 3s äasbalb Torgeso ^ Ugen.,

ORIGINAL BATHROOM 009335/095 3

ÖÖPY

chain sticks in rubber to prevent the transmission of these sohädlioh «xi to reduce the vibrations three points bit connected to the engine chain & ge «In this AtIX leads the connection to the handles and the SSgesehwert about rubber elements that help guide the Kötor 'fit not too badly, not which know enough to be considered to be sufficient Damping effect. The vibrations of the Brenskraftmasehine can therefore also not go goose Ton the Haadhandles be kept away because of the sehwia »· The lower head of the keto chain saw is much larger beeltst than the handles "

The object of the invention is to provide these parts

remove it and create a keto chain, with * &% t being guided, the vibrations are carried the Bre & mkraftmasohine on the chain and with it the hand movements are prevented

Zut ItBsums this task looks iie Srflaimmg ve ?, the lAngSÄehee of Srlimders de ^ lrenmlogftfmsiehi right only XAngsaehse of SSgesehwert · "sf-SMTs iie the noses of the BrennkraiMmasehimu out $$ lisliem iml £ ie Mn »

009835/0953

BADORLGiNAL

and incoming masses are unbalanced and the Bremnkraftmasehine is stored in sehwliiguagsdämpf! lementen and via a Blstanstell in the direction of the longitudinal axis of the S & sword is fixed. On the VeIse, the The tensile forces generated by the drive of the saw chain do not affect the internal combustion engine suspended in rubber in the direction of the longitudinal axis of the saw value, so that the chain does not lose its tension and tob lettenritsel can jump down. In particular more advantageous The Diβtan * part is designed as a handlebar, one on a housing part and one on the internal combustion engine is pivotably mounted. But the diet can also be used be designed as a stop arranged on the housing part, at which in the direction of the sword there is an announcement of the internal combustion engine sur system, so that relative movements the vibrating internal combustion engine and the housing part of the Kotor chainsaw not in the direction of the longitudinal axis of the Saw value can be transferred. Even though the pulling force on the saw chain does not reduce the chain tension can, the internal combustion engine can oscillate freely in the vertical direction on the axis of the sag value.

The vibration damping becomes more effective, the larger it is the mass of the dormant file compared to the hatred of the

009835/0963

ORfGlNAt

oscillating sell, it is therefore provided that all ropes of the chain saw, which do not necessarily have to be firmly connected to the internal combustion engine, are arranged on the non-oscillating part of the casing. The housing part closes the two sanies »the saw blade and the two handles are attached to it. In addition, the Tergaser is firmly attached to it, which is connected to the cylinder of the internal combustion engine via a vibration-damping tubular element.

Further details of the invention will be explained with reference to the drawing which represents, for example embodiments in more detail · t It seigen

Fig. 1 is a longitudinal section through a file

a chain saw in echematic Representation according to the line I-I in Pig. 2,

flg. 2 shows a cross-section here below Line 11 * 11 in Flg. 1 ,

3 shows a partial longitudinal section according to TIg. 1 in the case of a «broad training of the« dietary parts ».

009835/0963

The motorized chain saw consists of two main parts, a swinging part and a lower swinging part. The swinging part of the motorized chain saw forms an internal combustion engine 1, from which a crankcase 2, a cylinder 3, a crankshaft 4> a chain drive pinion 5 with an Elish force coupling 10 _f Exhaust pot 6 , © las güMeinrichinmg 7 _s a cooling air fan 8 and a BtZT ^ QV 9 belong » Dar niülit.gclMingende 2eil is composed £ ξ i'jessatliciisii ziisaamön from ainera housing part 11 , to which Qln rjäg« scl3 »srt 12 is fixed load some fuel »

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4 hold aowle handles 15 _t 1 # 3tigmkg dss saw blade «» 12 and

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let * in the housing part

S and an air filter 19. with »iaem

ics ^ 0Kwing © Ti.as3! i and a & m non wirri 1 mm h §2? gssteilt clurcii "ohwlngungsf times # s *> 3atl $ r © ouch §uiaml that once

U9feäus «-iiBll - ^ i tlsml am Seiteaflftohtii 22.25 of the lurbel

009835/0953

Iteait, despite the suspension of the internal combustion engine 1 in Ghmnielementen a movement of the Eettenaattriebsritsels 5 in the direction of the I & nge & chse 24 of the saw value 12 "ine" especially Terureaeht through the tensile force de? saw chain, omitted; a Bistsnteil 25 is provided, which in the Jcag-f ^^ Jiigsfonn after the Pigpm 1 vmä 2. as l © Ä © r 2M amsg-is ^ i ^ is ¹ ! Is, the one hand on © ia © 3s l © lsea 27 is aieliteeliiu ^ ₁₁ l * n part of MaseMiae and ssfluiOSPBaits on ülrigoB neck 2 Mb iCur'bdlgehäuse © 2
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vibration-damping, elastic tubular element 32 nit connected to the cylinder 3, it is made of rubber by the existing element 32 insulated from internal combustion engine 1 against heat transfer

The engine of the Internal combustion engine 1 balanced so that only inertial forces perpendicular to the longitudinal axis 24 of the saw bar 12 develop. Sasu, the rotating masses of the crank mechanism, the reciprocating masses, are balanced on the other hand do not receive any weight compensation.

The gate parts obtained with the invention consist in particular in that furthermore rigid connection between the handles and the saw bar provides excellent and direct guidance the chain saw is possible and trotsdem τοη the internal combustion engine practically no more vibrations can be transferred to the operations «ττη. Si Internal combustion engine · can over the sohwingongsdampfenden Elements opposite the low-swinging parts of the engine chain, swing freely. You swaying masses are reduced to a minimum, the proportion of non-oscillating masses is increased. You hanging the br «m-

009835/0953

engine can for reasons of optimal vibration damping arbitrarily soft, done without thereby the handling of the machine while saying in any Way is affected.

009835/0953

Claims (1)

Claims 1) Portable motorized chain saw with a saw blade »around which a saw chain runs, which is driven by a chain drive pulley arranged on the crankshaft of an industrial machine and with handles rigidly connected to the saw blade» characterized in that the saw axis (51) of the cylinder & © ra (3) ö © r Br ^ iteaf-fsaasshine (i) vertically aur Slagsaehsö (24) äee Sägssehwerte _v 12) it says "die reüiierendsn Maueea &% y Breimkraftiiaschine (1) auegegli- and di" Mn "and going cash siaö miä di ® Bgsmjfeaftaiaechine (1) in stored and over a Dintane lieil (25) in Ilelitiisg sar lingiaehee (24) de » Slge- (IS) flsi ^ r ^ t is « 1, thereby g elaes des? Blsitanstsll (25) ala Lanksr (2ö) is formed, «lesr once on the © iasa G-closure part (11) and once Ga ä © 2? B ^ ennkraftai ^ sshin © (1) söhwejOcbar mounted iet 009835/0853 3. Motor chain saw according to spoke 2, characterized in that the link (26) is mounted on the one hand on a bolt (27) held in the device part (11) and on the other hand on a neck (28) of the crankcase (Z) of the internal combustion engine (1). 4 * IX ^ ä§ «a * utensllge according to claim 1» characterized »xeictet'l ^ that the distance te 1. (25) is formed as a part (11.) arranged aneeblae (29)» ®a tem in Siohtuag tea gSgesetejss ^ se (12) Gegeaaaschlag (30) der BssgsaIsEraftiaasoMao {Ί} I ₉ 4 ^Λ »ER lotätigc l># f®Q ⁱ ö2, ßi5 DS 5o £ 2, oil (1) V. , v> *: ^ i ^; 1) ^ int: - l dough Cf) and J ⁴ ' qgg gci? ö qgg g ¥ ®1I * Cf) ait C ^] C ^]) altooaäo 00S835 / ORiGiNAU tNSPECTEO fell on a housing part (11) »a saw bar (12), a fuel tank (13) "is an oil tank (14)" handles (I5 _f i £) _t a Tergaser (18), an air filter (19) and covers (17,20) and the "dnringungsdämpfenden elements (21 ) for connecting the two! parts are arranged between side surfaces (22, 23) of the crankcase (2) and the housing part (11). 6. Motor chain saw according to claim 1, characterized in that the Tergaser attached to the housing part (11) (13) is connected to the cylinder (3) of the internal combustion engine (1) via a vibrating tube element (32). 009835/0953 Blank page