DD208450A3 - SHEARS - Google Patents

Abstract

The invention relates to a hedge trimmer with two in particular gegenlaeufig each other moving double-sided cutting shear blades, which are provided with trapezoidal Schneidzaehnen and longer almost rectangular widened at their ends Fangzaehnen. The object of the invention is to improve the Scherblaetter for a hedge trimmer of the type mentioned in the claim while maintaining this genus own safety function such that a vibration-free working guaranteed by voelligen mass balance in the reciprocating motion of the Scherblaetter and interchangeability with each other is made possible. According to the invention, it is provided that both sides of the scissors are equipped with trapezoidal cutting teeth along a longitudinal side edge and with elongated catch teeth at the longitudinal edge opposite this.

Description

; f

ι π

Field of application of the invention

The invention "shall look; to a hedge trimmer oiit z;? Ei in particular in opposite directions towards each other aopOelseitig intersecting shear sheets with trapezoidal Sehneidsähnen and longer almost rectangular at their Sncen ya T ¹ Z ^ t ¹ 9" he it te ¹ ^ 5 ¹ Snakes are covered. "

Characteristic of the known technical readings

3s are already electric motor driven hedge trimmers

'Λ Π d "T ^'" ΐ V ^ y * 1 "- .-. ^ OC no η2 ^." Ι ^ D "^ - ^" Q "i- · ~ ΐ" ^ "TO" ΐ Qp- ^ PI Γΐ "πΊ -T ⁴ " ^ -IT ¹¹ H ¹ ^ a'r "^ rv -

OLidi cLL-ij-J iiji-S vjvj ^ uC ^ -UgSiauC Ui-LU i-ViCi O Oi-J-itJ iuu J_o.ui υ aiii u - ^ J Ci.d ^. ^ IJ. <j

which consist of rural, fiachseitisen plates are disposed at i ^ ene'n along both side edges inreT ¹ sesenüberliesende also flachseitise Schiieidsähne. The Sch.neidza.hne besitsen a v-shaped outward is. are essentially pointed pors, and are opposite one another against each other; pg-a ^ f.ir · ^ ή ο ' ρ ο ο Γ; τ *. ^ ct ^ 3? ~; 5c ^^ "~ t '-'". ^ - ^ ~ n "^ T'cg ^ p ¹ '! G, ie ^" ^ c ^{>: n}

All teeth of the tendon are the same dimensioned with each other equal to each other distance and the same number of teeth.

. Although this construction permits the cutting blades, the DAB P ₁ "] ätter both aiq COS ⁷¹ S ^ ode ^ ¹ un ^ e ^ e ^ ^"l'-itt used Video-, has ^this: - ^T es3erfcrsi iedoch "^ änssl which consist in the fact that, by the similar formation of the doctrine, the sino dooo scnne ^ cie ^ ^ - "- rsenene ^ n ^ c ¹ '* ¹ ^ · ³ ^ dsah ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ fo e "^ -XnsussbsdiLn" d to tendon inende geä ^c t before "~ ^ 'fs" p "" ^v "^ he ^ s ^ ⁷ ^ iir

L Ö / O "J * 4 * J U

As a result of this cutting blade, no protection against injuries when reaching into the holes was obtained (DE-AS 2 201 976).

To avoid these disadvantages were also. Hedge trimmers with z- ^ ei double-sided cutting nit nosed scissors developed, "in which the shearing blades are gegenest opposite each other or at least τιονοη a shearing blade against the other shearing blades is movable.

A well-known hedge trimmer of this type provides an ilesser-υ a Ike η , "at deei a knife on both sides is equipped with teeth that are approximately rectangular and in the area of their outer ends by terminating outboard sliding edges and internal catch edges in known per se Widened manner are formed

· ^Α 1 tf ³ te 7 _t p "hni2 Λοτ ^ η J ₁ H τ ca h r, r> H α τ α η α rii p

The design of the extended and widened at the outer end Eangsähne be compared to the known knives äiit with similar teeth a "irksaser protection against reaching into the - Messerbalken so ~ is improved strain conditions for the branches u, md 2 ^τ λ / Θ2_ ^; ^ Θ -S3Θ ^^ U.3.XX β ^ *

This ^r 7orteile be rjedoch characterized ge-nindert ₃ that due to dis different design of the knife, especially in counter-rotation thereof, a vibration-free operation by complete Masseausgieich in the out-U "^ d reciprocating He ^ e ^ u ^ s only vs ^ ^ c ^ i ^ particular ^ iesserblatt - strength is achievable "to this end, in a known ¥ else the blades sit on both sides provided traoezforalgen cutting teeth stronger than the ilesser Aiit mutually arranged ΤΓ Q T * 1 ^al: ~ '° ~~" ^ ^1? ^ ^ "^ U hr ' ^Ί ^ >? 3 * -' ¹ ^ ^ - ""r? G 'Γ: .C ^' Ζ P]")) > P Ό H - T ¹ S ^ -, ^ ''"<^ ¹ 1" ΐ t This embodiment of the shear is relatively Esser ~ iä3ig devoted by regarding the production of additional Werkzeuse and gate -r »H η p, j *. Q; ^ <c - ~ T) 1 "* 'Π ~ ¹ '" ¹ ίϋ. "^ -R ¹ ,! Ϊ́Λή ^ ri ^ n ^ .f ρ c CQ ^ f ¹ - ^ ^ r."; P ^ '" ¹ HQ * ^ * ^" ^ - ^ T ¹ V ^ π H "h> -ΓΊ Τ ^ ρτ ¹ - steerable Eostehauf ^ and connected (DE-OS 2,752,234),

iel the inventor us:

The invention covers, the Scherblätuer without Veralinderung ^ DT ? S3? 3 cinxi'3 LC. θ ILS θ ZL SC £ 12 £ ij iS 2? "u ILS uH ^; .Ξ! S ti θ C ^ XlIL 3 C ^ V 3" ^ ¹ S X '^ ll? .3, GP Tj,

Explanation of the essence of the invention

The invention has the object augrunde to improve the shear blades for ei '^ e hedge trimmer of the type mentioned in Arsoruch while maintaining this genus own safety function such that a vibration-free work by complete mass balance in the reciprocating occupation of Scherbiätter ensures and a Interchangeability with one another is possible. The object is achieved according to the invention by virtue of the fact that both sides of the shear along a longitudinal side edge are sited

RJG ^ rgt Tjän · ⁰ * - ~ "ei t e'ikant s wi th extended 5 ¹ Sn sz aim θ η ausi'e - are equipped and DAB respectively Schneidsähne a Schsrblattes and rangsänne of s-"ince; s shear blade are arranged one above the other in a snow position

In addition, it is particularly advantageous that the shearing blades are interchangeable with each other due to the similar design and also for the serial no

The invention

The zuz-shörigs Zeichnuns; show one

in the most uniform position, a pair of scissors shifted from one another to the other, that from the upper shearbase 1 and the lower niche

£ 0 Ό Ό 4 3 O 4

As the representation aca upper shear blade is, the traoezförois trained cutting teeth 5 are arranged on a longitudinal side edge in equal Ab.ständeη to each other and provided with a lateral bevel 6, 6 ^R. On the other Long side edge of the scissors blade are the Senneidaähnen 5 opposite elongated Fangsähhe 7 · Dis fangs are executed at hersa äüBeren end 8 to prevent Yerletsungs danger in a known manner dull, the opposite

has a distribution 9j s - ¹ ^ ^sr outward leading edges 10j 10 'and inward trailing edges''11 j 11' are located. This in itself with known hedge trimmers usual design of the guide or ' Fangs. serves in particular for better detection of the material to be cut. The lower shear blade 2 is formed in the same Nielse 7? Ie the over it sende- upper shear blade 1. The diche blade thickness and interchangeable shear blade he are., -In the assembled state soeineine arranged j since each of the cutting teeth of a shear blade and the fangs of the other shear blade in cutting position are superimposed * The rear side of both blades Ii, 2, is in the housing, not shown, of the hedges

zeuguiis the opposite occupancy of the shear blades is.

The 3rfindungsgegenstand is not tied to a hedge trimmer with oppositely movable shear blades, the same cutting effect is also achieved - ~ iit with a hedge trimmer _} in which only one shear blade against a stationary shear blade bebest.

Claims (1)

1, hedge trimmer with; ζτϊβΐ especially in opposite to each other "moving Doooelseitig cutting shear are provided by the longitudinal axis of the sclera - tailed, ready - to - cut cutting teeth and almost recre - chacked fangs, and thus the fangs are made longer than the sinewsiae, and, in their sense, they are a torridor , ¹ , which are bounded by outwardly directed leading edges and by inward facing edges, thereby delineate, and thereby terminate. . ^. iCiOu uCj. ^! sib OOu ~ l J Ic ^ u Lidu. \ \% '-) urn - ^ 1 ptr) <? ο -ΐ - ^ i ^ t ¹ T.piicf? ^^ ¹ 'fi ^ Tilrp ή ^ ft πι "τ: τ: τ» ί5'τ ^ ρ 7. "^ π" ^^ τϊϊ ^ side edge are equipped with extended Pangzälmen (7), S ₁ Hedge trimmer according to item I _3, characterized in that the cutting tongs of a shearing hammock and the ^ LL Ό -i- '^ · O Ό V · -L- ^ - t-ί.- -Ir ^ Anseordneti are.