Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
Ws:~ 91/04137 - 1 - 2 ~ ~ ~ g ~ ~f/C1~90!01381
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r~T :l;RE P~JLL E;R
This invention Lelates to a wire puller.
~ here are nur~e~ous illst ances w~lere wiLe needs to be
pulled in a r~uired direction.
Tllu~, ~ith sucn as wire mesh fenclngr }lorizontal
suppo~ strands of wire are provided be.w~en su~port posts and
whi~h, after being secured to a ~irst ~ost and c~.rriea to an
:- enc~mos~ post, need to be tensioned be'cween the posts. In
another instanc:er su~h 2S in the grow incl o~ vines, a
consid~rable numb~r o~ hori ont~l s~ nds of wire n~ea _o be
provided to provide support ~or the vine~ over their heigh'c.
Again, the lengths of wire are secured ~co 2 rir~t yos~ ~nd -
carried to an enamost post, s7ith the n~ed rOL t}le lens~:hs or
t~ire to be ~ensioned be~ween the posts. The wires ma~ be
se~ured in tension by ~ncho~ing ~o the endm~st post; or th~
wires may be looped round the endmost post and e~ch pro~ ed
wit:h a terminal through which both the G~ran~. and the erld pass
~nd in whic:h the end is gripped, pullir1g o~ t~e end throug~
'che term~l applying the tension to the s~rand.
Likewise, successive lengt}ls of wire ma~- need to l~e
coDnected toge~er ~o ~orm support strands of ~reater o~ ~r~ll
length ~h~n the ind_vidual ~ire lengths, a con~ector being
pr~tided for ad~cent en~s of su~:~essi~te length~i of a suppor.
~tra~d, ~Y7 th the wire ends passing thr~ugh the connect4r from
opposite ends and gripped ~herein, pullinq oE one end through
~he connect~r appl~ing tension to the stran~ if need be.
Such a connector is desc~ibed in ~O 8~/02934 and may ~e used
alternativel~? as ~ termin21 in the manner d~scribed aboveO
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~VO 91/0~13/ ~ ~ ~- P~-r/GB~0/01~1
With ~ire, pulling by halld can on1Q e~Q9~n thS~ wire
to a limited ciegreer and to ~n extent th~t would not b~
s~l:Ef icient f o~ the purpose~ mentioned ~bove.
Tne object of t:he invention is to provide a simple ~nd
e:Efective m~ans :eOL pulling wir~
~ ccoraing to the present invention, a w ire pulle~
comprises ~ fi~st le~e~ haviny a first pivo~ ~e~een 2
handsrip po~tion and an 2}~utmen'; portion, a second lever
pi~4te~ by ~ne first pivo~ to the first leve.r be~ween a
h~ndgrip porti~n of the secorld lever ana 2 ~ir~t cl~m~ing
member on at lè~st one side of the second lever 2 second
pivo on- the seond lever betwe~3n t:h~ St pivot and the
fi~st clamping mem~er, a second clampiny member on the ~;econd
pivol: on at least the same side o. the secon~ lever a~ the
fi~st clamping me~nber, 'che second clamplng member ~eing
spring-loaded to a s~op po~i~ion !~oward~ the a}~utmen~ po~ion
~ the ~irst le~er, ~Ln~ rirs~ ~nd se~ond wir~-e~lg~ging ~aces
on the ~irs~ and ~econd ~lamt~i~s members respectivelyr tne
second wire-engagins ~ace beirlg arc:ua.e but non concentrilc
wi.th th~ se~:ond pi~ot and whereby 2S the secon~ clamping
Tnember is ~r~ed towards its ~top po5ition the mihimum gap
between ~he ~irst and second wire-engaging f ;~Lces di~inishes,
th~ abutment portion having a first abu~ment f:a~e adapf ed t~
press against the second clampins mer~be~ when the handg~:ip
portiQn~ ~ the le~re~:s are moved away f~oIn e~c~ o~he~ so as ~o
increase ~he minimum g~p between the wire-erlgaging $aces ,or
insertion there~tw~n ~ any wire up to a maximum di~meter,
zLnd the abu'cmen~ porlion having a second ~butment face facin~
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V~`091~041~, ~ 3 ~ l~cr~ o~u~
~Dpositely to ~he f irst abutment Ea~eOÇ~L60~lutltlent: b~
te~nal or conn~ctor with respect to which the ~ir~. is to be
pullea when the hands~rip portions of the leve:rs a~:e mo~ ed
towar ds ea ch o'h e r.
lt w~ e appr~iat;ed tllatr ~s rhe h;~nayrip portions
or .he levers ar~ inill:i211~ movecl towards eac}~ other, th~
~irst abutment 'ace is carried away _rom ~:~ntact Wi.il tne
second clampir~g mem~er thus ~lïowing th~. S~3cO~ wire-engaSlng
~ace to b~ urged towards the f irst w ire-ensag. ng . ace to
e~fact an initial grip or 2 wire inse.r'~ed Lh~rebe,.ween. As
~e han~grip pcrtions continue to ~e moved tow2rd~ e~ch other,
tension in the wire and f riction betwe~n i ~ and t~le wire-
eTlgagins .aces will bring about a gre~ter yriy OII the wire.
'rhe ~e~ond wire-engaginy fa.ce, zt le~., is pre:~erably
provided Wi~h teeth or se~r~tion5, to enhance the yrip.
The a~utment portion of the firs~ ?.r ~ be pr~videc3
with a notch fo~ loc~Ltion o~ a wire ex~ending f ~:om a termin2l
~r connector ~o between tne clanlpin~ members on ~he s~cond
lever, ~qhereby the terminal or connec~.o~ is l~ated aga nst
t~e ~econd a~utment face. Plt.er~ ely, or p:~:ef erably in
addition, the second abutment fac~ is reCe5e~ 1 reCeipt ~r
one end o~ z te~cminal or connector.
q~he other side o the second 1 ever i~ pr~f e~ably also
provided ~ith fi~s~ ~nd second clampin~ mem~ersr so that the
wire puller c~n ~e used either way ro~lndt and ~e abutment
portion of ~he filst lever is likewise referably provided
with a pair of notcn~s and/or a pai r o~ rec~ses, one notc~
and/or one recess being aligned ~7ith a resp~ctive p~ir o~
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~0 ~1/0413~ 0/013~]
2~6~
~1 ampirl c~7 m em ber s .
Rer~ated o~ra-ion or the wire ~uller ~ need be,
prog:ce~sively pu~l ~ wire Wit~l re~pef~t ~o a ~erm' n~Ll or
connector .
Both levers may have a U-sectionr ~-7, h the ahutm~nt
portion ~ or~ed as a rir~t separate solid component ri-veted
bets~te~n ~he limbs or l:ne U-~ectlon Ol~ t;h~ :E i.rst I ~verr ~nd
with ~he :~irs~. cl.amping me~u~e?r or Iprefer~ly) member~ ~o~Pd
ir~egrally with a. second separate solid compo11eIl~ rivet:ea
b~twe~n the limbs oi the U-section oE the secorlu le~eLr an~
the handgr~p po~tion of each lever is p~eferab'~- fi~ed wi~h a
re;1ient sleeve orming the h~nd~rip proper.
An e~bocimen, o~ t~e in~elltion ~ il 1 nQw ~e ~:iescri~e~
b~ way of example only~ with reference to the ~c~:orr.panyillg
draw ings, i n ~rl ich: -
Figurq l i~; a slde elevation of 2 W ire puller inacc~rdance wi~ the invention in inope~at~e cc~ ion;
Fiyure ~ iS an elev2tiol7. fro~ the left hznd side of
Fi gur e ~; ~
Figure 3 i5 a plan view of tne wl`re Dull~r,
Fi~ure 4 c:orresponds ~o Eigure l but ~howq the wire
puller ir~ condi~ion to reC:eive a ~ire to be pulle~ with
r~spect to ~ terminal or conne~:tor;
Figure S corresponds to the upper pa~.t of ~igu~e 4 but
s~ws the wire ~eing grippe~ ~y the puller and r~ady to be
pulled; and
Figure 6 correspond to Figure 5 bu~ sho~s the wire
having been pulled through th~ ter~ina1 o~ connector to- the
.wo 91/0~13~ 2 0 S ~ 6 Pr/GB9u/(ll381
f~llest extent possible ~fith a single operatian o~ the E~u:Ller.
The ~ire pull er shown i n the drawings comprises a
fi~st lever lE~ having a first pivot l l ~etween z }landg~ip
po~tion 1~ and an ~butment portion 13, z second le-~er 1~
~ivoted by the Eirst pivot 11 to .he f ir5~ Le~eL 1~ ~tween a
handgrip portion 1~ or t~e second la~rer arlcl a flrst cl~mping
m~3nber 16 on at least one side of the second lever, a second
pivo~ 17 on ~he second 1 e~r lg b~tweer. ~he fir~t p?vot 11 ~rld
tne ~irst c~lamping me~ber 1~, a secol~d clam~ing member 1~ on
t-,he second p.ivot; 17 Oll at least the ~ia.me s:i.de c, tne secon~
lever 14 as t~e ~irst ~lamping member, t~e second c1amping
wember being loa~ed by a sprihg 19 to a stop posi.t:ion (see
Figures 1 and 3) towards the abutment po~tiorl 13 G_ the~irs~
1~7er 10, and firs~ and second wiLe-engzgi.ng f~ce 20, 21 on
~he ~irst and sec:ond ~l~mping ~ ers 16, 18 respe~tively, ths
sec~nd wire-erlgaging face 21 bei.n-~ ~rcuate hut non-con~ent~ic
~!7ith the second p.ivot 17 and ~7hereby as the second cl~E,in~
me3nber 18 is urged ~owzrds its stop position the minilnuN y~p
between the ~irs. and second wire-engaging faces 70~ 21
dim~nish~s, the ab~?tment portion 13 ha~in~ ~ -Ei~st ab~tmen~
fac~ ~2 adaET~ed to presO ~2ins~ ~he second c:lampi.ng men~ber 18
when the hanagrip portiorls 12, 15 of the le~ers 10, 14 ~re
moved away from eQch ot~er (see Fisllr~ 4) so ~s to in¢rea~e
-the minimum gzp be~ween the wi.re-engayiny ~ces 20, 21 ~or
insertion th~rebetween of anv wire 23 up to a maximum
d~ameterr and the ab4tmen~ portiorl 13 ha~ing a second a~ut~ent
face ~4 facirlg o~positel~- tv the f irs~ abut~ent f ace 22 foL-
abut:ment b~ 2 terminal or Gonnector 25 with respe~-t to w~ich
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Wo 9l/W13/ - 6 - 2 0 6 ~ 6 ~ 9 P~r/G~90/l~'3XI
the wire ~3 is ~o be pulled when the handgrip postio~ , lS
o~ t:he le~iers l~, la are moved tow~rds each other (.see Figure
6)
As the h~ndgl:ip porl:iorls l~, l!; or the levers l~
are is~itially moved i:owa~ds eacll ~her, the flrs. al~utme
face ~2 is ~.rried away from ~ontac. ~ i~.h the se~:onu ;:l~mping
member l~ thus 2:Llowing ~he sec:ond wire-enaaging face 21 to be
urged ~owards tne ~irst wire-eng~gin~ fece ~0 to e~fect 2n
initial grip on the ~-ire 23 inserted therebetween ~see Figure
5).. As the handgrip portions 12, 15 cohtinue ~o be moved
tow2Lrds each other, tension irl the wire 23 ~nd Lriction
be~ween it an~i ~he w ire-enyaging f ~ces 2~ 1 will br:ing abou~
a gr~ater grip on the trire~ ~l'he second wir~-eLlyaqing Eace 21
i s provided with ~eeth OL serratiolls, to enh~nc~ ~:ne grip.
~ he second abutmen~ Eace 24 is re~ce~sed for r~ecelE~ of
one end o~ tenninal or co~mector ~.5 (see Figures 5 and 6)~
The other side o~ ~le secona lever l i.s also pro~-ided
with firs. and se~cn~ cl~upinq ~embels l~X, 18X (see E'igure 3)
s~ that the wire puller can be tlsed either way roundt and the
abut~ent porl~iorl 13 of the r~rst lever la is pro~ided wi~h
another recessed abu~ment i~ace 2~X t$ee ~ res 2 anc~ 3)~
Re~?eat~d operation of ~h~ wire puller will, if need
~e, progressively pull ~he wire 23 ~arther wi~h respec~ to ~e
termin~l or conneciar 25.
Both levers 10, 1~ have a U-sec:tic~n, with the abutment
portion 13 ~ormea ~s part of a first separzte solid CorupOnent
sec:ured between ~he limbs c~ the tJ-section of the ~irs~
l~ver 1~ by rivet s ~7, and with the ~i~e;t clampin~ melllber~
~O 91/0413, - 7 - 2 Q ~ ~ 6 0 9 PCT~B9~)/013~1
' ~X f ormed inteyrally with a secon~ sep~.r~te ~ol id comr~nent
2~ secu}~ed be~ween the limbs of tile U-section of the se~ond
lever by rivets 29. The handgrip por~ions 12, 15 or the
levers 10~ 14 ~re ~itted with resilient sleeves 30, 31 formins
the handyrips properr and the lever 14 is provided with ~ s'.op
portion 32 t:oope~ating with the inside b~se ol th~ U-s~c~ion
or the firs. lever 10 ~o l~mit cl~sure o~ the levers (se~
Fi~lres 1 and 6).
