CA1314701C - Suction type hair clipper - Google Patents
Suction type hair clipperInfo
- Publication number
- CA1314701C CA1314701C CA000544588A CA544588A CA1314701C CA 1314701 C CA1314701 C CA 1314701C CA 000544588 A CA000544588 A CA 000544588A CA 544588 A CA544588 A CA 544588A CA 1314701 C CA1314701 C CA 1314701C
- Authority
- CA
- Canada
- Prior art keywords
- casing
- assembly
- clipper assembly
- scalp
- clipper
- 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 - Fee Related
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Abstract
ABSTRACT OF THE DISCLOSURE:
The hair clipper comprises a hand-carriable casing having an outlet adapted to be connected to a vacuum source, such as a domestic vacuum cleaner; an intake adapted to be applied to the scalp to draw the hair into the casing; a hair-cutting assembly located across said intake and including co-acting, fixed and reciprocable sets of cutting teeth. An air turbine within the casing drives the reciprocating set of teeth. An adjustable spacer assembly is carried by the casing around the clipper and adapted to engage the scalp to maintain the clipper at an adjustable distance and angle from the scalp during hair cutting. A hair trimmer is also operated by the turbine but only in advanced position.
The hair clipper comprises a hand-carriable casing having an outlet adapted to be connected to a vacuum source, such as a domestic vacuum cleaner; an intake adapted to be applied to the scalp to draw the hair into the casing; a hair-cutting assembly located across said intake and including co-acting, fixed and reciprocable sets of cutting teeth. An air turbine within the casing drives the reciprocating set of teeth. An adjustable spacer assembly is carried by the casing around the clipper and adapted to engage the scalp to maintain the clipper at an adjustable distance and angle from the scalp during hair cutting. A hair trimmer is also operated by the turbine but only in advanced position.
Description
1! 3147~1 E~lELD OF I`HE INVENlION
_ _ _ ___ _._ _. __ __ The present invention rela~es to suction type hair cutters.
BACKG~OUND O~ lE_lNVENT]ON
li is known to provide hair clippers actuated by an air-driven turbine, For instance, see U.S. Patent 2,929,140 dated March 22, 1960 to S.B. Wilson and entitled: ACCESSORY ~OR
BARBE~ TOO~. However, known hair clippers of the character descrlbed are incapable o~ conveniently varying the length of cut hair, whereby the resultant cut cannot be said to compare in precision, compared with the result obtalned by an able hairdresser equipped with simple manual scissors. This is why such clippers have never been good sellers on the market.
OBJE~C'rS OE `rHE lN,,V,EN`rION
The general object of the presen~ invention is to provide a suction typè hair clipper, which is arranged so as to adjust the length o~ the cut hair.
Another object of the invention is to provide a hair clipper o~ ~he charac~er described, provided with a second clipper assembly which serves for trimming.
~U~tM~RY _~THE INVEN'rION
l'here is disc]osed a suction type hair cutting device comprising a hand-carriable caslng having, at opposite ends, an outlet adapted to be connected to a vacuum source and an intake adapted to be presented to the scalp o~ a person to suck the hair 7 ~ ~
thereo~ into the casing.
A clipper assembly is mounted in the casing across the intake and has co-actiny, fixed, and reciprocable sets of cutting teeth. Rotary power means and means for converting the rotary motion of the air turbine means into reciprocating movement serve to drive the reciprocable set of cu~ting teeth. A scalp-engaging adjustable spacer assembly is carried by the casing about the clipper assembly to adjustably extend beyond the clipper assembly and, thus, adjustably space the latter from the scalp to enable to cut hair oI variable lengths. lhe spacer assembly comprises a scalp-engaging :Erame and a pair oE side strips secured to said frame at one end and telescopica]ly carried by the casing at each end of the clipper assembly and adjustably and independently extendible from the casing, so that upon app]lcation of the frame on the scalp, the clipper assembly is spaced not only at an adjustable distance from the scalp, but also at an adjustable inclination relative thereto.
Preferably, a second clipper assembly is movably carried by the casing in a plane at right angles to the first-named clipper assembly for movement between a retractedinopera-tive position and an operative extended position beyond the first clipper assembly, In the operative position, the second clipper assembly serves as a hair trimmer. Clutching means are provided to drive the reciprocable set o~ cutting teeth of the trimmer only when the latter i5 in operative position.
13~70~
Br~ I~F' DESCRI~l'lON_OE~,l'HE,,~D~ _INGS
Figure 1 ls a side elevation of the halr'clipper;
Figure 2 is a front elevation;
Figure 3 is a longitudinal section, taken along line 3-3 of Figure 2;
F'igure 4 is a cross-sec~ion taken along line 4-4 of Figure l;
Figure 5 is a top plan view taken along line 5-5 of Figure l;
Figure 6 is a plan section taken along line 6-6 of ~igure 3;
E~'igure 7 is a cross-section taken along line 7-7 of Figure 5;
E'igure 8 is an enlarged longitudinal section of part of.
Figure 3, showing the trimmer in advanced operative position;
Figure 9 is a plan section taken a]ong line 9-9 oI
Figure 8;
~ igure 10 is an end view of a separate adjusta~le guide member designed to .be applied against the sca.lp for guiding ~0 displacement of the hair clipper ol F'igure l;
Figure 11 is a longitudinal section taken along line 11-11 of E'igure 10;
Figure 12 is an enlarged front elevation of the top portion of Figure 2; and Figure 13 is a perspective view of. a portion of the spacer assembly.
7 ~ ~
DETAILED ~ESCRJ~lON OF A ~EE'E~E~EI~ EMBODIMENT OE' THE INVENl'JgN
~ lair clipper 20 defines a cylindrica] casing 22, with a tubular outlet pipe 24 at one end. Pipe 24 is adapted ~o be removably connected to the hose 26 of a vacuum source, such as a household vacuum cleaner, not shown. The opposite end of caslng 2~ is partly open. In this opening is mounted a hair clipper assembly, indicated at 28 in Figure 2.
l'he casing 22 forms a genera]ly cylindrical side wa]l 33 open at the Eront, sald openlng being closed by a cover 32, removably held ln place by screws 32A. Casing 2~ has a back wall 34A and a removable back cover 34, generally altgned with outlet pipe 24. As shown in E'igure 3, within casing 22 is arranged a pàr~ition 30 parallel to back cover 34. An~iai-r turbine 36 is rotatably mounted between partition 30 and back cover 3q, and the hub 38 thereof is fixed to a shaft 40, which extends normal to partition 30 and back cover 34 and is rotatably mounted within ~he lat~er by means of a socket 41. Access-~o turblne 36 is ~ained by removlng circular back cover 34 which has a peripheral flange 89 fltting a groove of back wall 34A.
Similarly, a seat 47~ is formed in side wall 3, upper ~ransverse wall 47 and lower transverse wall q7 ~o recelve the removable front cover 32. A ~lexible p~astic band 49 is slidingly engaged within railings 47C of Eront cover 32 for a purpose to be exp]ained hereina~er, ShaEt 40 has a front shaf-~ ex~ension 40A which drives a gear and lever assemb~y 42, detalled below, whlch translorms the ¢ 4 ~3~7~ ~
rota~ive movement of the sha~t 40 into a reciprocatir1g movemen~.
Assembly 42 is operatively connected to ~he movable cuttlng teeth of the hair clipper assembly 28 to reclprocate said teeth, l'hls is done upon rotation of the air turblne 36 when the tube 24 is connec~ed to a vacuum source, l~he hair is ~lso drawn into the opening 44A a~ the upper part of the front of casing 22 and also throu~h openin~ 44, which ls a contlnuatlon o~ the opening 44A at the top of casing 22, Once cut, the hair is sucked -through a passageway 46 above a wali 471 which extends at right angles to and forwardly from the top portion of partltlon 30, The hair passes through a cavlty 33 defined by b~ck wall 34A and top wall 35; then around the turblne 36 to be sucked through tube 24 and hose 26 into the vacuum cleaner, The ~ear and lever assembly 42 wi~l now be de~ailed, A
small gear wheel 48 ls fixed to shaft extenslon 40A and meshes with a diametrically larger gear wheel 50, which is Ireely rotatable on a stud shaft 52, Eixed to partition 30. Larger gear 50 carries a small, eccentric idle roller 54, pre~erably a bal]
bearlng. Idle roller 54 is engaged in a lon~itudinal ~roove 58 o~ an elon~ated lever arm 60. l'he len~th o~ groove 5~ should be at least equal to or sllghtly longer than the diameter of large ~ear 50, so that idle roller 54 be lengthwlsely rollable therealong upon rota~lon of gearS around its stud shaft 52.
Lever arm 60 ex~ends throu~h a channel 62 made throu~h upper wall 47 and a dependent bulge 64. Lever arm 60 is pivotable in~ermediate lts ends and nearer its upper end about a ¢
~31~70-l pivot pin 66 extending through bulge 64 and across channel 62.
'rhe upper end 60A of lever arm 60 freely extends through an opening 70A ol a block 70 (see Eigures 3, 6, and 8). lhe fork at the upper end 60A is engaged by a transverse pin 72 fixed to blocX 70 and extending across the opening 70A and rearwardly oI
the block, Block 'tO has a forwardly extending integral finger 80 for driving the movable set of teeth Or the hair clipper assembly 28. The block 7Q and finqer 80 move in a transverse linear movement on a wear-pad 73 provided with a gui.ding flange 73A.
~0 Rectil.inear reciprocatinq movement of the block 70 and fin~er 80 is obtained by the osci]]a~irlg movemen~ Or lever arm 60 about its pivot pin 66 under the action o~ idle roller 54 rotated in a circular path by the larger ~ear 50.
rhe hair clipper assembly 28 (see Fiqures 3, 6, and 8) consists o~ a reciprocable blade 7q and of a stationary blade 74A, each provided with upper cut~in~ teeth enclosed in a ~ixed guard 74B having spaced notches 74C. Blade 74A extends between and is fixed to straight wall extensions 33A of side walls 33 (see Fi~ure 6).
Compression coil sprin~s 76 extend between block 70 in a backing plate 74D to press -the reciprocable blade '74 against fixed blade 74A. Backin~ plate 74D is fixed to blade 74 and includes a rear, intermediate notch for enga~ement by the pointed end of ~inger 80. lhus, finger 80 reciprocates blade 74.
As shown in Figures 7, 8, and 9, a second clipper assembly is provided to Iorm a trimmer. It includes an outer hollow blade 82 bearing front teeth 82A. Blade 82 is slidably mounted within the openin~ 44 made in top wall 35 for forward and backward movement from a retracted non-operative position, shown in Fiqure 3, to an advanced operative position, shown in Fi~ure As shown in Figure 7, outer blade 82 has outturned side flan~es 82B slidably enga~in~ ~rooves 83 made in side wall ex~ensions 33A. Outer blade 82 is manually pushed to advanced and retracted positions. Outer blade 82 houses a hollow, inner blade 83A, which is slidably fitted -therein for transverse, reciprocating movement. Inner blade 80A has, at its ~ore ed~e, ~ 3 ~
cuttin~ teeth 83B which co-act with the cutting teeth 82A of outer blade 82, The rear end of inner blade 83A has an aperture ~3C through which extends the ~ron~ part of an L-shaped actuating bar 84A (see Figures 8 and 9), which is pivoted intermediate its ends about a rivet 88 carried by outer b]ade a2.
A spacer sleeve 87 is mounted around rivet 88 to maintain actuator bar 84 in position, The rear end of actuator bar %4 freely extends through a rear opening 86, made in outer blade 82, said rear opening 86 being wider than rear opening 83C
of inner blade 83A, Actuator bar 84 has a righ-t angle dependent leg 84A, with a forked outer end 84B receiving the pin 72 in the advanced position of the trimmer assembly, As shown in Figure 3, the pin 72 is disengaged rom actuator bar 84 in the retracted position of the trimmer, This provides a clutching assembly for the trimmer, In the retracted pos~ion of the trimmer, only the hair clipper assembly 28 is operated, while in the advanced position of the trimmer, both the hair clipper assembly 28 and the trimmer 82, 83A are actuated, In order to maintain the teeth 83B o~ the inner blade 83A in co-acting relationship with the teeth 82A of outer blade 82, two compression coil sprlngs 90 bias the inner blade 83A
forwardly by bearing on the rear wall 94A of the outer blade 82 and a~alnst the rear wall 83D of inner blade 83~. The two compression springs 90 are guided by pins 92 and 96, fixed to rear walls 94A and 83D, respectively, As shown in Figure 9, oscillating movement o:E actuator 13~7~:~
bar 84, about its pivot rive~ 88, will cause lin~ar reciprocating movement of the inner blade 83A. rhe outer hollow blade 82 has side walls 9~B, which termina~e shor~ of the ~ee~h 83B, so as to provide lateral openings for the passage of trimmed hair to be sucked in casing 22.
Figures 5, 6, 7, 12, and 13 show a spacer assembly adapted to be applied against the scalp, so as to maintain the hair clipper assembly 28 at an adjusted distance from the scalp and also at an adjusted angle, for cutting the hair at an 1~ a~usted distance from the scalp and with an acl~usted proqressive length. rhis assembly includes a U shaped frame 91, having a bight 91C and two side legs 91A terminated with top rounded ears 91B. The top end of band ~9 is rearwardly turned at its top end and pivotally retained by a rivet 91D to the center of bight 91C.
A pair cf ~lexible bands 93 are secured at their front ends wlthin notches of side legs 91A of U^shaped frame 91. The bands 93 are slidable forwardly and rearwardly within guiding ~rooves 93A (see Figure 6~ made in the side wa]] extensions 33A
of casing 22. Each band 93 has at its outer exposed surface a ~0 plurality of equally-spaced transverse grooves 93B, adapted to be selectively engaged (see ~igures 5 and 6) by the tip 89B of sprlng clips 89A carried by brackets 89C and biased towards a posi~ion in which the tips 89A engage a selected groove 93B. `rhe brackets 89C are mounted on the side o the casing. Therefore, by pressing on the clips 89A to release both bands 93, the U-shaped frame 91 can be manually pulled forwardly of the casing 22 ~31~7~
un~il the front edge of U-shaped frame 9l ls spaced from the hair clipper assembly 28 at the desired d.is~ance, If desired, one or the other oI the side bands 93 can be advanced more than the other, so that -the U-frame 9l may take an adjusted inclination with respect to ~he hair clipping assembly 2a, as shown in dotted llnes in ~igure 5, 50 as -to cut hair at progressive lengths.
~ and~/`.9, whlch is plvoted at 91D to the U-frame 91, allows -this pivo-tal movement of the latter. Band~:9 beinq flexib]e and being retained in ral]ings ~7C to a point righ~
~10 undernea-th bight 91C of U-shaped frame 91, wi.ll remaln closely ad~acent to the side bands 93 in any advanced positlon of the frame 9l, Thus, band 49 acts as a sh.ie.ld to prevent hair from being sucked underneath the,U shaped ~rame 9l, F.igures lO and .ll show a gu.ide member lO0, which is structura]]y dlstlnct from the hair c]~pper 20 and wh~ch ~s designed to be used in cooperation ~herewith, Guide member lO0 is used to a]so cut hair of different lengths and in accordance with various, adjustable curves in the cut~ing direct.ion o.f -the cllpper 20, Guide member lO0 lnc]udes a rlgid U-shaped longitudinally-curved base plate lOl belng provided with spaced side legs 102, Upstanding side flanges 104A extend ~rom both longitudinal ou~er edges of the base plate 101, `rhe front port~on o~ base plate lOl is provided adJacent the inner surface of each side :flange 104~, wlth a plurallty of teeth 106, A
1exible U-shape band 11~ is rigidly secured at the ends 112 of ~ 3 ~
its side le~s to the base plate 101 by crimpin~ part 108 of base pla~e 101. Flexible band 114 has its front edge 115 selectively engageab]e with set of teeth 106, so as ~o vary the longitudinal curvature of the band 114.
In operation, the guide 100 is held in one hand and posi~ioned on the scalp of a person with the base plate 101 in contact wi~h the scalp. I'he hair clipper 20 is held with ~he other hand and ~uided between side flanges 104A and alon~ -the U-band 114, so as to cut the hair to a variable length con~orming to the contour of band 114, The hair is sucked through the central openings ~ormed by legs 102 of the base p].ate 101 and by ~he side legs of the U-shaped band 114 to be sucked and cut by ~he hair clipper 20.
_ _ _ ___ _._ _. __ __ The present invention rela~es to suction type hair cutters.
BACKG~OUND O~ lE_lNVENT]ON
li is known to provide hair clippers actuated by an air-driven turbine, For instance, see U.S. Patent 2,929,140 dated March 22, 1960 to S.B. Wilson and entitled: ACCESSORY ~OR
BARBE~ TOO~. However, known hair clippers of the character descrlbed are incapable o~ conveniently varying the length of cut hair, whereby the resultant cut cannot be said to compare in precision, compared with the result obtalned by an able hairdresser equipped with simple manual scissors. This is why such clippers have never been good sellers on the market.
OBJE~C'rS OE `rHE lN,,V,EN`rION
The general object of the presen~ invention is to provide a suction typè hair clipper, which is arranged so as to adjust the length o~ the cut hair.
Another object of the invention is to provide a hair clipper o~ ~he charac~er described, provided with a second clipper assembly which serves for trimming.
~U~tM~RY _~THE INVEN'rION
l'here is disc]osed a suction type hair cutting device comprising a hand-carriable caslng having, at opposite ends, an outlet adapted to be connected to a vacuum source and an intake adapted to be presented to the scalp o~ a person to suck the hair 7 ~ ~
thereo~ into the casing.
A clipper assembly is mounted in the casing across the intake and has co-actiny, fixed, and reciprocable sets of cutting teeth. Rotary power means and means for converting the rotary motion of the air turbine means into reciprocating movement serve to drive the reciprocable set of cu~ting teeth. A scalp-engaging adjustable spacer assembly is carried by the casing about the clipper assembly to adjustably extend beyond the clipper assembly and, thus, adjustably space the latter from the scalp to enable to cut hair oI variable lengths. lhe spacer assembly comprises a scalp-engaging :Erame and a pair oE side strips secured to said frame at one end and telescopica]ly carried by the casing at each end of the clipper assembly and adjustably and independently extendible from the casing, so that upon app]lcation of the frame on the scalp, the clipper assembly is spaced not only at an adjustable distance from the scalp, but also at an adjustable inclination relative thereto.
Preferably, a second clipper assembly is movably carried by the casing in a plane at right angles to the first-named clipper assembly for movement between a retractedinopera-tive position and an operative extended position beyond the first clipper assembly, In the operative position, the second clipper assembly serves as a hair trimmer. Clutching means are provided to drive the reciprocable set o~ cutting teeth of the trimmer only when the latter i5 in operative position.
13~70~
Br~ I~F' DESCRI~l'lON_OE~,l'HE,,~D~ _INGS
Figure 1 ls a side elevation of the halr'clipper;
Figure 2 is a front elevation;
Figure 3 is a longitudinal section, taken along line 3-3 of Figure 2;
F'igure 4 is a cross-sec~ion taken along line 4-4 of Figure l;
Figure 5 is a top plan view taken along line 5-5 of Figure l;
Figure 6 is a plan section taken along line 6-6 of ~igure 3;
E~'igure 7 is a cross-section taken along line 7-7 of Figure 5;
E'igure 8 is an enlarged longitudinal section of part of.
Figure 3, showing the trimmer in advanced operative position;
Figure 9 is a plan section taken a]ong line 9-9 oI
Figure 8;
~ igure 10 is an end view of a separate adjusta~le guide member designed to .be applied against the sca.lp for guiding ~0 displacement of the hair clipper ol F'igure l;
Figure 11 is a longitudinal section taken along line 11-11 of E'igure 10;
Figure 12 is an enlarged front elevation of the top portion of Figure 2; and Figure 13 is a perspective view of. a portion of the spacer assembly.
7 ~ ~
DETAILED ~ESCRJ~lON OF A ~EE'E~E~EI~ EMBODIMENT OE' THE INVENl'JgN
~ lair clipper 20 defines a cylindrica] casing 22, with a tubular outlet pipe 24 at one end. Pipe 24 is adapted ~o be removably connected to the hose 26 of a vacuum source, such as a household vacuum cleaner, not shown. The opposite end of caslng 2~ is partly open. In this opening is mounted a hair clipper assembly, indicated at 28 in Figure 2.
l'he casing 22 forms a genera]ly cylindrical side wa]l 33 open at the Eront, sald openlng being closed by a cover 32, removably held ln place by screws 32A. Casing 2~ has a back wall 34A and a removable back cover 34, generally altgned with outlet pipe 24. As shown in E'igure 3, within casing 22 is arranged a pàr~ition 30 parallel to back cover 34. An~iai-r turbine 36 is rotatably mounted between partition 30 and back cover 3q, and the hub 38 thereof is fixed to a shaft 40, which extends normal to partition 30 and back cover 34 and is rotatably mounted within ~he lat~er by means of a socket 41. Access-~o turblne 36 is ~ained by removlng circular back cover 34 which has a peripheral flange 89 fltting a groove of back wall 34A.
Similarly, a seat 47~ is formed in side wall 3, upper ~ransverse wall 47 and lower transverse wall q7 ~o recelve the removable front cover 32. A ~lexible p~astic band 49 is slidingly engaged within railings 47C of Eront cover 32 for a purpose to be exp]ained hereina~er, ShaEt 40 has a front shaf-~ ex~ension 40A which drives a gear and lever assemb~y 42, detalled below, whlch translorms the ¢ 4 ~3~7~ ~
rota~ive movement of the sha~t 40 into a reciprocatir1g movemen~.
Assembly 42 is operatively connected to ~he movable cuttlng teeth of the hair clipper assembly 28 to reclprocate said teeth, l'hls is done upon rotation of the air turblne 36 when the tube 24 is connec~ed to a vacuum source, l~he hair is ~lso drawn into the opening 44A a~ the upper part of the front of casing 22 and also throu~h openin~ 44, which ls a contlnuatlon o~ the opening 44A at the top of casing 22, Once cut, the hair is sucked -through a passageway 46 above a wali 471 which extends at right angles to and forwardly from the top portion of partltlon 30, The hair passes through a cavlty 33 defined by b~ck wall 34A and top wall 35; then around the turblne 36 to be sucked through tube 24 and hose 26 into the vacuum cleaner, The ~ear and lever assembly 42 wi~l now be de~ailed, A
small gear wheel 48 ls fixed to shaft extenslon 40A and meshes with a diametrically larger gear wheel 50, which is Ireely rotatable on a stud shaft 52, Eixed to partition 30. Larger gear 50 carries a small, eccentric idle roller 54, pre~erably a bal]
bearlng. Idle roller 54 is engaged in a lon~itudinal ~roove 58 o~ an elon~ated lever arm 60. l'he len~th o~ groove 5~ should be at least equal to or sllghtly longer than the diameter of large ~ear 50, so that idle roller 54 be lengthwlsely rollable therealong upon rota~lon of gearS around its stud shaft 52.
Lever arm 60 ex~ends throu~h a channel 62 made throu~h upper wall 47 and a dependent bulge 64. Lever arm 60 is pivotable in~ermediate lts ends and nearer its upper end about a ¢
~31~70-l pivot pin 66 extending through bulge 64 and across channel 62.
'rhe upper end 60A of lever arm 60 freely extends through an opening 70A ol a block 70 (see Eigures 3, 6, and 8). lhe fork at the upper end 60A is engaged by a transverse pin 72 fixed to blocX 70 and extending across the opening 70A and rearwardly oI
the block, Block 'tO has a forwardly extending integral finger 80 for driving the movable set of teeth Or the hair clipper assembly 28. The block 7Q and finqer 80 move in a transverse linear movement on a wear-pad 73 provided with a gui.ding flange 73A.
~0 Rectil.inear reciprocatinq movement of the block 70 and fin~er 80 is obtained by the osci]]a~irlg movemen~ Or lever arm 60 about its pivot pin 66 under the action o~ idle roller 54 rotated in a circular path by the larger ~ear 50.
rhe hair clipper assembly 28 (see Fiqures 3, 6, and 8) consists o~ a reciprocable blade 7q and of a stationary blade 74A, each provided with upper cut~in~ teeth enclosed in a ~ixed guard 74B having spaced notches 74C. Blade 74A extends between and is fixed to straight wall extensions 33A of side walls 33 (see Fi~ure 6).
Compression coil sprin~s 76 extend between block 70 in a backing plate 74D to press -the reciprocable blade '74 against fixed blade 74A. Backin~ plate 74D is fixed to blade 74 and includes a rear, intermediate notch for enga~ement by the pointed end of ~inger 80. lhus, finger 80 reciprocates blade 74.
As shown in Figures 7, 8, and 9, a second clipper assembly is provided to Iorm a trimmer. It includes an outer hollow blade 82 bearing front teeth 82A. Blade 82 is slidably mounted within the openin~ 44 made in top wall 35 for forward and backward movement from a retracted non-operative position, shown in Fiqure 3, to an advanced operative position, shown in Fi~ure As shown in Figure 7, outer blade 82 has outturned side flan~es 82B slidably enga~in~ ~rooves 83 made in side wall ex~ensions 33A. Outer blade 82 is manually pushed to advanced and retracted positions. Outer blade 82 houses a hollow, inner blade 83A, which is slidably fitted -therein for transverse, reciprocating movement. Inner blade 80A has, at its ~ore ed~e, ~ 3 ~
cuttin~ teeth 83B which co-act with the cutting teeth 82A of outer blade 82, The rear end of inner blade 83A has an aperture ~3C through which extends the ~ron~ part of an L-shaped actuating bar 84A (see Figures 8 and 9), which is pivoted intermediate its ends about a rivet 88 carried by outer b]ade a2.
A spacer sleeve 87 is mounted around rivet 88 to maintain actuator bar 84 in position, The rear end of actuator bar %4 freely extends through a rear opening 86, made in outer blade 82, said rear opening 86 being wider than rear opening 83C
of inner blade 83A, Actuator bar 84 has a righ-t angle dependent leg 84A, with a forked outer end 84B receiving the pin 72 in the advanced position of the trimmer assembly, As shown in Figure 3, the pin 72 is disengaged rom actuator bar 84 in the retracted position of the trimmer, This provides a clutching assembly for the trimmer, In the retracted pos~ion of the trimmer, only the hair clipper assembly 28 is operated, while in the advanced position of the trimmer, both the hair clipper assembly 28 and the trimmer 82, 83A are actuated, In order to maintain the teeth 83B o~ the inner blade 83A in co-acting relationship with the teeth 82A of outer blade 82, two compression coil sprlngs 90 bias the inner blade 83A
forwardly by bearing on the rear wall 94A of the outer blade 82 and a~alnst the rear wall 83D of inner blade 83~. The two compression springs 90 are guided by pins 92 and 96, fixed to rear walls 94A and 83D, respectively, As shown in Figure 9, oscillating movement o:E actuator 13~7~:~
bar 84, about its pivot rive~ 88, will cause lin~ar reciprocating movement of the inner blade 83A. rhe outer hollow blade 82 has side walls 9~B, which termina~e shor~ of the ~ee~h 83B, so as to provide lateral openings for the passage of trimmed hair to be sucked in casing 22.
Figures 5, 6, 7, 12, and 13 show a spacer assembly adapted to be applied against the scalp, so as to maintain the hair clipper assembly 28 at an adjusted distance from the scalp and also at an adjusted angle, for cutting the hair at an 1~ a~usted distance from the scalp and with an acl~usted proqressive length. rhis assembly includes a U shaped frame 91, having a bight 91C and two side legs 91A terminated with top rounded ears 91B. The top end of band ~9 is rearwardly turned at its top end and pivotally retained by a rivet 91D to the center of bight 91C.
A pair cf ~lexible bands 93 are secured at their front ends wlthin notches of side legs 91A of U^shaped frame 91. The bands 93 are slidable forwardly and rearwardly within guiding ~rooves 93A (see Figure 6~ made in the side wa]] extensions 33A
of casing 22. Each band 93 has at its outer exposed surface a ~0 plurality of equally-spaced transverse grooves 93B, adapted to be selectively engaged (see ~igures 5 and 6) by the tip 89B of sprlng clips 89A carried by brackets 89C and biased towards a posi~ion in which the tips 89A engage a selected groove 93B. `rhe brackets 89C are mounted on the side o the casing. Therefore, by pressing on the clips 89A to release both bands 93, the U-shaped frame 91 can be manually pulled forwardly of the casing 22 ~31~7~
un~il the front edge of U-shaped frame 9l ls spaced from the hair clipper assembly 28 at the desired d.is~ance, If desired, one or the other oI the side bands 93 can be advanced more than the other, so that -the U-frame 9l may take an adjusted inclination with respect to ~he hair clipping assembly 2a, as shown in dotted llnes in ~igure 5, 50 as -to cut hair at progressive lengths.
~ and~/`.9, whlch is plvoted at 91D to the U-frame 91, allows -this pivo-tal movement of the latter. Band~:9 beinq flexib]e and being retained in ral]ings ~7C to a point righ~
~10 undernea-th bight 91C of U-shaped frame 91, wi.ll remaln closely ad~acent to the side bands 93 in any advanced positlon of the frame 9l, Thus, band 49 acts as a sh.ie.ld to prevent hair from being sucked underneath the,U shaped ~rame 9l, F.igures lO and .ll show a gu.ide member lO0, which is structura]]y dlstlnct from the hair c]~pper 20 and wh~ch ~s designed to be used in cooperation ~herewith, Guide member lO0 is used to a]so cut hair of different lengths and in accordance with various, adjustable curves in the cut~ing direct.ion o.f -the cllpper 20, Guide member lO0 lnc]udes a rlgid U-shaped longitudinally-curved base plate lOl belng provided with spaced side legs 102, Upstanding side flanges 104A extend ~rom both longitudinal ou~er edges of the base plate 101, `rhe front port~on o~ base plate lOl is provided adJacent the inner surface of each side :flange 104~, wlth a plurallty of teeth 106, A
1exible U-shape band 11~ is rigidly secured at the ends 112 of ~ 3 ~
its side le~s to the base plate 101 by crimpin~ part 108 of base pla~e 101. Flexible band 114 has its front edge 115 selectively engageab]e with set of teeth 106, so as ~o vary the longitudinal curvature of the band 114.
In operation, the guide 100 is held in one hand and posi~ioned on the scalp of a person with the base plate 101 in contact wi~h the scalp. I'he hair clipper 20 is held with ~he other hand and ~uided between side flanges 104A and alon~ -the U-band 114, so as to cut the hair to a variable length con~orming to the contour of band 114, The hair is sucked through the central openings ~ormed by legs 102 of the base p].ate 101 and by ~he side legs of the U-shaped band 114 to be sucked and cut by ~he hair clipper 20.
Claims (5)
1. A suction type hair cutting device comprising a hand-carriable casing having at opposite ends an outlet adapted to be connected to a vacuum source and an intake adapted to be presented to the scalp of a person to suck the air thereof into the casing, a clipper assembly mounted in the casing across the intake and having co-acting, fixed and reciprocable sets of cutting teeth; rotary power means in said casing, means for converting the rotary motion of the rotary power means into reciprocating movement and connected to the reciprocable set of cutting teeth to drive the same; and a scalp-engaging adjustable spacer assembly carried by the casing about the clipper assembly and adjustably extendable beyond the clipper assembly to thus adjust the space between the latter and the scalp to enable to cut hair of variable lengths, said spacer assembly comprising a scalp-engaging frame and a pair of side strips secured to said frame at one end and telescopically carried by the casing at each end of the clipper assembly, clip means for each strip carried by said casing and each engageable with a selected portion of one strip to adjustably and independently maintain each strip at an adjusted extended position relative to said frame, whereby the scalp-engaging frame can be adjustably extended and maintained not only at a selected distance from but at a selected inclination relative to the plane of said clipper assembly;
wherein said casing has a top wall and a front wall, said intake being located at the corner portion of said casing defined by said top and front walls, said clipper assembly being generally in the plane of said front wall, said scalp-engaging frame having a U-shape defining a bright portion underlying said clipper assembly and side legs extending externally of the respective ends of said clipper assembly; and further including a shielding band, slidably, longitudinally mounted in railings externally of said front wall and pivotally attached at one end to the center of the bight of said U-shape scalp-engaging frame, said shielding band preventing hair entry from underneath said bight portion in the extended position of said spacer assembly.
wherein said casing has a top wall and a front wall, said intake being located at the corner portion of said casing defined by said top and front walls, said clipper assembly being generally in the plane of said front wall, said scalp-engaging frame having a U-shape defining a bright portion underlying said clipper assembly and side legs extending externally of the respective ends of said clipper assembly; and further including a shielding band, slidably, longitudinally mounted in railings externally of said front wall and pivotally attached at one end to the center of the bight of said U-shape scalp-engaging frame, said shielding band preventing hair entry from underneath said bight portion in the extended position of said spacer assembly.
2. A clipper assembly as defined in claim 1, wherein said rotary power means is an air turbine located in said casing and driven in rotation by the air flow passing through said casing.
3. A clipper assembly as defined in claim 2, wherein said means to convert the rotary movement of said power means into reciprocating movement, includes a wheel rotatably mounted in said casing and driven by said air turbine, a roller eccentrically carried by said wheel, a lever arm pivoted in said casing intermediate its end and having a longitudinal groove at one end rollably engaged by said roller; and a finger fixed to said reciprocable set of cutting teeth and connected to the other end of said lever arm.
4. A suction type hair cutting device comprising a hand-carriable casing having at opposite ends an outlet adapted to be connected to a vacuum source and an intake adapted to be presented to the scalp of a person to suck the air thereof into the casing, a clipper assembly mounted in the casing across the intake and having co-acting, fixed and reciprocable sets of cutting teeth; rotary power means in said casing, means for converting the rotary motion of the rotary power means into reciprocatingrnovement and connected to the reciprocable set of cutting teeth to drive the same; and a scalp-engaging adjustable spacer assembly carried by the casing about the clipper assembly and adjustably extendable beyond the clipper assembly to thus adjust the space between the latter and the scalp to enable to cut hair of variable lengths, said spacer assembly comprising a scalp-engaging frame and a pair of side strips secured to said frame at one end and telescopically carried by the casing at each end of the clipper assembly, clip means for each strip carried by said casing and each engageable with a selected portion of one strip to adjustably and independently maintain each strip at an adjusted extended position relative to said frame, whereby the scalp-engaging frame can be adjustably extended and maintained not only at a selected distance from but at a selected inclination relative to the plane of said clipper assembly;
further including, a second clipper assembly movably carried by the casing in a plane at right angles to the first-named clipper assembly for manually actuated movement between a retracted inoperative position and an operative extended position beyond the first clipper assembly, said second clipper assembly having a stationary set of cutting teeth and a co-acting reciprocating set of cutting teeth; and clutching means to clutch the reciprocable set of cutting teeth to said means for converting, the rotary motion of the power means to reciprocating movement, only when said second clipper assembly is in operative extended position.
further including, a second clipper assembly movably carried by the casing in a plane at right angles to the first-named clipper assembly for manually actuated movement between a retracted inoperative position and an operative extended position beyond the first clipper assembly, said second clipper assembly having a stationary set of cutting teeth and a co-acting reciprocating set of cutting teeth; and clutching means to clutch the reciprocable set of cutting teeth to said means for converting, the rotary motion of the power means to reciprocating movement, only when said second clipper assembly is in operative extended position.
5. A suction type hair-cutting device as defined in claim 4, wherein said clutching means includes a pin secured to and extending away from the reciprocable set of cutting teeth of the first clipper assembly and an L-shaped actuator bar having a forked end, said actuator bar pivotally carried by said second hair clipper assembly, with the fork thereof, receiving said pin in the advanced position of said second clipper assembly and clearing said pin in the retracted position of said second clipper assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000544588A CA1314701C (en) | 1987-08-14 | 1987-08-14 | Suction type hair clipper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000544588A CA1314701C (en) | 1987-08-14 | 1987-08-14 | Suction type hair clipper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1314701C true CA1314701C (en) | 1993-03-23 |
Family
ID=4136279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000544588A Expired - Fee Related CA1314701C (en) | 1987-08-14 | 1987-08-14 | Suction type hair clipper |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1314701C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023066137A1 (en) * | 2021-10-21 | 2023-04-27 | 深圳语莱扬名数据信息有限公司 | Nose hair trimmer having nose hair suctioning function |
-
1987
- 1987-08-14 CA CA000544588A patent/CA1314701C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023066137A1 (en) * | 2021-10-21 | 2023-04-27 | 深圳语莱扬名数据信息有限公司 | Nose hair trimmer having nose hair suctioning function |
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