US1764614A - Clippers - Google Patents

Description

June 17, 1930. 1

A. J. DRI-:MEL

' CLlPPERS Filed March 11, 1929 'Patented June 17, 1930 vDNl'rlsznfsm-'ras;

PATENT OFFICE I Thisinvention relates to hair moreparticularly to the cutterlbla than to the actuating structure'. A

The resent invention is particularly designed or application to what are known as alternatingcurrent clippers, such .as illustrated in my co nding application'. filed August 22, 1927, rial No. 214,750Land has primarily forits object the provision of a simple, inexpensive Yaudveiicient means for mounting and guiding the reciprocative cutter blade upon the stationary comb plate, whereby desired tension is obtained between the two, and friction is reduced to a mm1- murga tlt th f ciena o eorego ,amore cic ob'ect is to provide ulrlilgtary meanssgr so gui g and creatingV tension` uppn the reciprocative blade as to Aavoid frictionbetween saidblademnd said guiding and tension means. f 1 f Another object of the invention is to provide a structure of the foregoing character which avoids the necessity of finely machined guidewaysfand yet definitely guides the cutter bladeto maintain parallel relation of the cutting teeth with the teeth of the comb plate. A still further obj ect is to provide `a simple resilient connection between the iding and so tension means and the cutter b ade, which can be readily replaced in case of wear and whereb tenslon upon both sides of the blade is e ua ed.

sgi-atheiith the above and other objects in view,y

which will appear as the description pro,- ceeds, the invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appended claims, it vbeing understood that such and' emploiyred for the purpose of clarity, Figure 1 is a fagmen'tary view of a clipper embody ing the present invention with parts broken away and in section to more clearly illustrate .structural details;

Figure 2 is a longitudinal section taken on the line 2-2 of Figure 1; and

`Figure 3 is a transverse section taken on the line 3 3 of Figure 2. Referring now more particularly to the accompanying drawing, the invention is illustrated in connectiontwith a clipper of the general structure disclosed in the above reerred to pending application, and, therefore, the drawing and description are confined to the essential features of the inven- Y' lhe numeral 1 designates a casing that houses an actuating mechanism comprising an armature 2, which is dependent for its lateral reciprocation upon anV alternating cur- `rent motor,'not shown.

Detachably connected to the casing 1 is a cutter head comprising a lstationary comb Y plate 3 secured to a shank plate 4 by means of the lscrews 5. As best shown `in Figure l1, the forwardend of the casing 1 is open and receives the shank 4whichis held against lat-- eral movement by a resilient guide plate 6 secured to the bottom of the casing. The inner end of the shank 4 is provided with a trans- A verse opening 7 which receives a spring latch 8 carried'by the casing.

The foregoin structure is full described and shown in t e copending app ication referred to and, therefore, forms no specific part of the present invention, which may be applied to any clipper'structure embodying a stationary and movable blade. l v

. As set forth in the foregoing objects, the present invention resides in the novel means provided forv guiding and creating'tension upon the movable cutter blade 9, which is mounted `'upon the stationary blade 3 for slidable movement. Y The cutter blade 9 is actuated by atongue lextendingfrom the armay ture .2 and received in a central recess 9 formed in the cutter blade.`

Thisconnection between the armature and also necessitated finely machined and, due to the fact that the tension spring en aged the top face of the cutter blade, consi erable friction resulted.

The resent invention, which aims to ovei" come t e foregoing objections, comprises a unita guiding and tension device 11, which is anhhored with relation, to the stationary blade 3. In the present form of the invention, this is accomplished by'attaching the device to the shank 4 which carries the stationary cutterI blade. However, in instances where the stationary cutter blade is carried directly by the housing 1, it is obvious that the device could be secured to the housing. y

The guidin and tension device 11 is preferabl formed rom a blank of resilient materia such as spring steel, and comprises a central portion 12, the rear end of which is riveted, or'v otherwise anchored to the shank 4, while its forwardend is spaced from its support.

' having threa The sides of the central portion 12 areturned downwardly to form forwardly rojectin arms 13 di osed at right angles to t e centra portion an terminating in ends 14 at right an les toy the major portion of their length. e ends 14 are provided with lu 15 for ivotal connection with the cutter lade 9. is connection is preferably formed by the provision of recesses 16, in which are dis.

posed washers 17 preferably formed from yieldable material and receiving the lu 15.

Extending forwardly from the centra portion 12 is a tongue 18 provided with an openingpfor the rece tion of a regulating screw 19 ed engagement with the shank 4.

In the o eration of the cliptper, wherein the cutter bla e 9 is reciprocate at a relatively hi h rate ofrs ed, it is obvious that the same be uide in its movement upon the stationary lade by the arms 13 which, due to their spaced relation, serve as parallel links to maintain parallel relation between the teeth of the cutter blade and the comb blade.

It will also be apparentthat .any desired tension may be exerted upon the movable cutter blade by means of the regulating screw 19 that controls tension of the tongue 18, which is transmitted' to thearms 13.

Particular attention is also directed to the fact that in forming the major portion of the arms 13 at right angles to the central rtion 11, the same are strengthened in the direction of the tension to be exerted upon the cutter blade, and oier the greatest resiliency inthe direction of movement of the `cutter blade,

`deways,

thusreducing strain upon the armature and :alie amount of current required for its actua:

ion.

It will also be appreciated that the novel connections between the arms 13 and the cutter blade permit ready replacement in the event of wear,'and due to the ieldable structure ofthe washers 17, any slig t variation in the tension of either arm 13 will be readily compensated for, thus insuring an even tension upon both sides of the cutter blade.

I claim: 1. In-a clipper of .the class described, a stationary blade, a cutter blade slidably mounted upon said stationary blade, unitary vvidingand tension means for said cutter b ade,

.said means bein anchored with relation to 4said stationary b ade and including a central body portion of resilient material having spaced arms pivotally engaging said cutter blade.

2. In a cli stationary b a e, a cutter blade slidably guiding and tension means for said cutter lade, said means being anchored with relation to said stationary blade and includin a central body portion of resilient materia having space arms pivotally engaging said cutter blade, and means'for regulating the tension exerted upon said arms.

3. In a clipper of the class described, a stationary blade, a vcutter blade slidably `mounted upon said stationary blade, unitary iding and tension means for said cutter lade, said means including a central body portion anchored with relation to said stationary blade, spaced arms extendin forwardly from the sides of said centra body portion and pivotally engaging said cutter 4. In a cli 4per of the class described, a'v

stationary b ade, a cutter blade slidably r of the class described, a

mounted upon said stationary blade, unitary guiding and tension vmeans for said cutter lade, said means includin a centralbody portion of resilient materia anchored .adiacent its rear edge with relation to said stationary blade and spaced from its support forwardly of its rear edge, aced arms extending forwardl from sai central Jbody portion with their outer ends arranged at right angles to the same and pivotally engaging ,said cutter blade, a central tongue projected from said central portion and means for regulating the tension of toiiui 5. In a clipper of the class deecri a stationary blade, acutter blade slidably mounted upon said stationary blade, and unitary and tension means for said cutter blade, said means inclu -a central body portion of resilient material havin spaced arms pivotally connected with sai lll cutter blade, a yieldable connection between said arms and said cutter blade, and means for regulating the tension exerted upon said cutter blade.

` 6. Ina clipper of the class described, a

, stationary blade, a cutter blade slidably mounted upon said stationary blade, unitary iding and tension `means for said cutter lade, said means comprising a central portion anchored with relation to said stationary blade, arms extending forwardl from the sides of said central portion an formed at right an les thereto and pivotally connected wlth sai cutter blade, a yieldable connection 4i5 between said arms and said cutter blade, a

central ton e projecting from said central portion, an means for regulating the tenslon of said tongue.

7. In a cli per of the class describedla y .o stationary b ade, a cutter blade slida mounted upon said stationary blade, unitary guiding and tension means for said cutter blade, said means comprising a pair of Hexible arms anchored at one of their ends with relation to said stationary blade, and pivotally connected at'their opposite ends to said cutter blade, and means for regulating tension upon said arms.

8. In a clipper of the cla described, a 3f', stationary' blade, a cutter blade slidably mounted upon said stationary blade, unitary guiding andtension means forssaid cutter blade, said means comprising a pair of fiat arms anchored at one of their ends with relation to said stationary blade aud pivotally connected at their opposite ends to said cutter blade, the Width of said arms throughout the major portion of their length being positioned at Iright angles to the plane of trav- 40 erse of said cutter blade, and means for applying tension upon said arms.

In testimony that I claim the foregoing I have hereunto set my hand at Racine, in the county of Racine and State of Wisconsin.I

5 ALBERT J. DREMEL

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