US2348590A - Safety razor - Google Patents

Description

mlm!! May 9, 1944.

J. R. AYOTTE SAFETY RAZOR FiledNOv. 20, 1945 Patented May 9, 1944 UNITED STATES@ PATENT OFFICE SAFETY RAZORV Joseph Rene Ayotte, Chicago, Ill. Application NovemberZI), 1943, Serial No. 511,151

(ci. .a-e9) 10 Claims.

This invention relates to improvements in razors of the guarded cutting edge type, more generally known and identified as safety razors, the invention having for its principal object to provide a razor of the indicated character wherein adjustment of the blade and its cutting edge can be elfected with relation to the guard, in order to selectively secure differentv cutting efliciencies commonly known to be required for different characters of beards, i. e., beards of heavy, light, tough or soft character, and bythe same token, to lessen shaving irritation and similar discomtures.

It is also an object of the invention to provide a razor of the stated character, in which angular adjustment of the blade and its cutting edge, with relation to the guard, is bodily eifectable, in contradistinction to being adjusted by flexing of the blade body, hence, affording not only greater cutting eiciency, but a greater range of angular adjustment and avoiding blade breakage due to excessive fiexure thereof.

Yet another object of the invention is to provide a safety razor which, by reason of the mounting of the -blade in the holder and its method of angular adjustment, permits effectual use of blades of considerably smaller size than those ordinarily used, without loss of shaving eiciency, plus an important saving of vital construction materials.

The invention also aims to provide a safety razor, the holder of which is of simple and durable construction, capable of manufacture at a cost materially less than that of similar types of razors, and with highly desirable fabricationeconomies.

Other objects of the invention will be in part obvious and in part pointed out hereinafter.

In order that the invention and its mode of operation may be readily understood by those skilled in the art to which it appertains, I have in the accompanying drawing and in the following detailed description based thereupon, set out one embodiment of my invention.

In the drawing:

Figure 1 is an enlarged side elevation of my improved razor, having a portion of its handle broken away to illustrate the connection of said handle to the blade holder.

Figure 2 is an enlarged top edge view of the improved razor, with a fragment of the handle thereof partially shown in section and connected to the clamping plate screw stud.

Figure 3 is an enlarged elevation showing the inner side of the guard plate.

Figure 4 is a similarly enlarged elevation showing the inner side of the clamping plate.

Figure 5 is an enlarged elevation of a single edge type of blade adapted to be received by the improved blade holder.

`Figure 6 is a transverse section through the blade holder, the blade and a portion of the handle, the latter being fragmentally illustrated, wherein the cutting blade is so positioned with respect to the guard plate as to .be eicient for shaving or cutting a comparatively light or soft beard; and

Figure 7 is a similar View wherein the blade is shown adjusted with relation to the guard plate in a manner to eciently function for the shaving or cutting of heavy and tough beards.

Having more particular reference to the drawing, in connection with which like characters of reference will designate corresponding parts throughout, the improved razor may -be gener ally stated to comprise a guard plate I, a clamp-` ing plate 2, a clamping plate carried screw stud 3 and a handle 4 having a co-aXially disposed internally screw threaded opening 5 formed in its normally inner end, adapted to receive said screw stud 3 therein, at times. the numeral 6, and hereinafter more fully described, is adapted to be received and retained in shaving position or relationship with respect to the plates I and 2.

The guardplate I is formed, along one side thereof, with a straight edge guard or skin engaging bar l, the outer surface or face of which is preferably curved, as shown in Figures 1, 6

and 7, whereby to insure its smooth engagementV with and movement over a bearded skin area. The opposite portion of the guard plateis formed with a substantially elliptical shaped outwardly depressed part 8, intermediately of its opposite ends and has ai medially located opening 9 formed therein to receive the screw stud 3 therethrough upon operative assembling of the guard and clamping lplates I and 2, respectively. Guide pin receiving openings I0 are formed in said opposite portion of the guard plate in proximity to thel opposite ends of the depressed portion 8.

As will be noted upon reference to Figures 1, 6 and '7 of the drawing, that portion of the guard plate I, provided with or carrying the straight edge bar l, is angularly disposed with relation to the remaining portion of the plate, i. e., the part formed with the elliptical depression 8. Thus, the inner face of the guard plate is provided with a longitudinally disposed bearing or fulcruming point II over and along its normally inner face (see Figure 3). It may also be here noted that the above described angularly extended portion of the guard plate I, now indicated for convenience by the numeral I2, has the blade 6 arranged directly adjacent and parallel to the same and that the cutting edge thereof is adapted to be inwardly spaced with respect to the outer edge or side of the straight edge ybar 'l parallelism thereto. I

The opposite ends of the blade receiving 4por- A blade, indicated by tion I2 of the guard plate I are preferably notched or recessed, as at I3, to receive cutting blade anchoring pins, hereinafter described, carried by the clamping plate 2.

The clamping plate 2, is of size and shape substantially corresponding to that of the guard plate I. Guide pins or lugs I' are fixedly carried upon appropriate portions of the normally inner face of said plate and are adapted to be received in or engaged through the guide receiving openings I provided in the guard plate I. Cutting blade anchoring pins I3 are xedly carried upon or provided upon appropriate portions of the opposite ends of the clamping plate 2 and are adapted to have the notched opposite ends III of the cutting blade 6 engaged therewith, as indicated in Figure 2 of the accompanying drawing, whereupon said anchoring pins are received in or through the notches or recesses I3 formed in the opposite ends of the portion I2 of the guard plate I. Thus, it will be understood and appreciated that the cutting blade 6 will be properly positioned and retained against lateral shifting movement with relation to the blade carrying portion I2 of the guard plate I, in the manner hereinabove described.

As hereinbefore set forth, the clamping plate 2 xedly carries an intermediately positioned and relatively right angularly disposed screw stud 3 adapted, with assembly of the guard and clamping plates I` and 2, respectively, to be engaged through the opening 9 in the guard plate I, in the manner shown in Figures 6 and 'I of the drawing. When so relatively engaged, they are locked or secured by turning the handle 4 with its co-axially disposed internally screw threaded end opening 5 into engagement with the projecting or extended portion of the screw stud 3. Obviously, the inner end of said handle 4 will be moved into positive engagement or Contact with the adjacent depressed portion 8 of the guard plate I and in so doing, the clamping plate 2 will be drawn into positive securing or clamping engagement with relation to the blade 6 received between its pins I3' and the angularly disposed blade receiving portion I2 of the guard plate I.

In order that the guard plate I may be angularly adjusted with relation to the clamping plate 2, the latter plate has a screw threaded opening formed intermediately of its normally outer side portion, as shown by the Figure 2. A set or adjusting screw I6 is turned into engagement with this screw threaded opening and has the inner end of its shank portion thrust-engaged with an adjacent portion of the depressed portion 8 of the guard plate I. The outer end of the adjusting screw I6, is preferably headed, as at I'I, to facilitate its engagement and turning by the fingers of the user.

In the use of my improved razor, a cutting blade, such as indicated by the numeral 6, is engaged between the relatively opposed anchoring pins I3' on the clamping plate 2. Thereupon, the clamping plate is engaged with the normally inner face of the guard plate I by passing the screw stud 3 through the opening 9 in the latter, allowing the blade anchoring pins I3 to be received in and through the guide notches or recesses I3 in the guard plate I. Positive alignment or registration of the clamping plate 2 with the guard plate I will be insured by engagement of the guide pins or lugs IIJ on the plate I, in and through the openings I0 of the clamping plate 2.

With the plates I and 2 thus engaged, it will be seen that the cutting blade 6 will be arranged adjacent and directly over the inner face of the angularly disposed blade receiving portion I2 of the guard plate I. A portion of said blade 6, as will be seen upon reference to Figures 1, 6 and 7 of the drawing, will be arranged directly adjacent and upon the fulcrurning or bearing portion II of the guard plate I.

To secure or effect the desired relationship between the cutting edge of the blade 6 and the bar 'I of the guard plate I, whereby the blade may be adjusted for different cutting efficiencies, i. e., for cutting heavy or tough, or light or soft beards, the adjusting screw I6 is turned either inwardly or outwardly with respect to the screw threaded opening receiving it through the clamping plate 2. By turning this adjusting screw I6 inwardly, it will be seen that that portion of the guard plate I thrust-engaged by its inner end, will be moved outwardly or away from the adjacent side or portion of the clamping plate 2, and that in consequence, the blade receiving portion I2 of the guard plate I will be moved towards and into proximity to the cutting edge portion of the blade 6, as shown in Figure 6. That is to say, the bearing or fulcruming point II of the guard plate I engaging the adjacentv portion of the cutting blade 6 throughout its length, will permit of rocking movement of the guard plate with relation to the blade 6 and to the clamping plate 2. Adjustment of the adjusting screw I6 thus effected, the razor handle II is now turned into engagement with the eX- tended or exposed portion of the screw stud 3 until its inner end is brought into binding or clamping engagement with the adjacent side or portion of the guard plate I, in the manner' illustrated in Figure 6 of the accompanying drawing. When so engaged, it will be seen that the clamping plate 2 will be drawn or moved into positive clamping and retaining engagement with the blade 6, insuring its retention in the above described adjusted relation to the blade receiving angularly disposed portion I2 of the guard plate, and also, immovably securing the guard plate I in its particularly adjusted position.

To effect adjustment of the cutting blade 6 to a position with relation to the guard plate I for cutting or shaving heavy or tough beards, the adjusting screw I6 is outwardly turned with relation to the clamping plate 2, allowing the adjacent portion of the guard plate I to be moved toward the inner end of said screw and the corresponding portion of the clamping plate 2. Thus, the angularly disposed blade carrying portion I2 of the guard plate I, will be swung or pivoted on the fulcruming point II in a direction away from the adjacent side of the cutting blade 6 until it reaches that position as shown in Figure '7 of the accompanying drawing. In such position, the cutting edge of the blade 6 is definitely or materially spaced with relation to the straight edged guard bar 'I, hence, providing for suicient clearance between the blade and said portion I2 to insure eiTicient cutting or shaving engagement of the cutting edge of the blade 6 with a beard engaged thereby. Thereupon, the razor handle 4 is turned onto the screw stud 3 until the inner end thereof is brought into bearing or binding engagement with the adjacent portion of the guard plate I, causing the same and the clamping plate 2 to be securely and/ or clampingly interengaged. In consequence, the cutting blade 6 will be ixedly retained in its adjusted relationship to the portion I2 of the guard plate I and said clamping plate 2, and by the same token, the guard plate will be immovably secured.

Whereas, I have herein described several eX tremities of adjustments of the cutting blade G, with relation to its guard plate I, for different cutting enciencies, it is to be fully understood that various degrees of intermediate adjustments may be effected, such as conditions or preference may dictate, thus providing for a multiplicity of beard cutting or shaving efficiencies by the improved razor.

The handle l of my improved razor, may have its surface formed in any desired manner, whereby to facilitate its rm grasping or holding by a user. In the instant embodiment, this handle is shown to be provided with a plurality of protuberances, generally indicated by the numeral It.

If desired, a double edged blade may be employed in lieu of the single edge type of cutting blade 6, hereinbefore described.

From the foregoing, it will be seen and appreciated by workers skilled in the art, that my improved razor permits of a wide and most advantageous range of adjustment of the blade provided therewith. Accordingly, the razor may be selectively adjusted or regulated to most effectually cut or shave beards of different physical characteristics, as hereinbefore stated, without danger of skin scraping, cutting or like injury or irritation. Moreover, because the blade 6 is capable of minute or a ne degree of angular adjustment with relation to the blade receiving portion I2 of the guard plate I, by reason of the selective movability of the latter, any particularly desired character of shave (close, medium close, or otherwise) may be satisfactorily secured or effected with the same.

It is of importance to note that during and throughout any and all adjustments of the outting blade, the body thereof is always atly maintained. That is, the blade body is not fiexed, and so, affords a maximum of cutting efficiency. It is, at all times, iiatly retained adjacent the corresponding face of the clamping plate 2, and angularity of adjustment, to provide a particularly desired cutting efciency, is entirely secured by moving or adjusting the guard plate and its blade 4 receiving portion toward and from the blade and the cutting edge thereof. Such movability or adjustability of the guard plate I, as above indicated, is effected by turning the adjusting screw I6 to any one of many predetermined positions with relation to the clamping plate 2 and the guard plate l. In consequence, greater shaving efliciencies are secured to or provided a user of the same, and too, breakage of blades, due to excessive or repeated flexings thereof, is eliminated.

Additionally, and of no less importance, is the fact that a saving of construction material is effected in the production of my improved razor and the blade or blades used in connection therewith, this being due to the size and formation of the razor or holder, and to the size and formation of the blade employed by the improved razor, without in any manner whatsoever sacricing shaving eiiiciencies.

I claim:

1. In a razor, a guard plate, bearing means on the normally inner face of said plate intermediately of its opposite sides, a, clamping plate adjacent said inner face rockably engaged by said bearing means, and means on one of said plates engaging a portion of the opposite plate for imparting rocking movement to the other plate.

2. In a razor, a guard plate, bearing means on the normally inner face of said plate intermecliately of its opposite sides, a clamping plate adjacent said inner face rockably engaged by said bearing means, and adjustable means on one of said plates engaging a portion of the opposite plate for imparting rocking movement to the first plate.

3. In a razor, a guard plate, bearing means on the normally inner face of said plate intermedi ately of its opposite sides, a clamping plate adjacent said inner ace engaging said bearing means, and means on one of said plates engaging a portion of the opposite plate for imparting rocking movement to the first plate.

4. In a razor, a guard plate, contact means on a portion of the normally inner face of said plate, a clamping plate adjacent said inner face of the guard plate fulcrurningly engaged by said contact means, and means on one of said plates for imparting rocking movement to the rst plate.

5. A razor, including two relatively engageable parts, bearing means on the normally inner face of one of said parts rockably engaged by a Dortion of the remaining part, and means on one of said parts engageable with a portion of the other for imparting rocking movement to the rst part.

6. A razor, including two relatively engageable parts, bearing means on the normally inner face of one of said parts rockably engaged by a portion of the remaining part, a blade disposed between said parts having one side of the same adjacent said bearing means and engaged along said side by the remaining part, and means on one of said parts for rocking the same upon the other part.

7. In a razor, a guard plate having a plane blade receiving portion and a bearing portion adjacent the inner side thereof, a clamping plate engageable with the guard plate over said blade fulcrumingly engaged with said bearing portion, and means on the clamping plate engageable With a portion of the guard plate for rocking the latter upon the former.

8. A razor, including two relatively engageable parts, fulcruming means on the normally inner face of one of said parts engaged by a portion of the remaining part, and means on one of said parts engageable with a portion of the other for imparting rocking movement to the first part.

9. A razor, including two relatively engageable parts, fulcruming means on the normally inner face of one of said parts engaged by a portion of the remaining part, means on one of said parts engageable with a portion of the other for imparting rocking movement to the first part, and means engaging said parts for securing the same in clamping relationship.

10. A razor, including a guard plate having a blade receiving portion formed thereon and a bearing portion thereon adjacent the inner side of said blade receiving portion, a clamping plate engageable with the guard plate over said blade receiving portion fulcrumingly engaged with said bearing portion, means on the clamping plate engageable with a portion of the guard plate for rocking the latter upon the former, and means engaging the guard plate and clamping plate for clampingly interconnecting the same.

JOSEPH RENE AYOTTE.

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