US2857667A

US2857667A - Magazine type safety razor

Info

Publication number: US2857667A
Application number: US686357A
Authority: US
Inventors: Baun John E De
Original assignee: Individual
Current assignee: Individual
Priority date: 1957-09-26
Filing date: 1957-09-26
Publication date: 1958-10-28
Anticipated expiration: 1975-10-28

Description

Oct. 28, 1958 v 1. E. DE BAUN MAGAZINE TYPE SAFETY RAZOR 2 Sheets-Sheet l Filed Sept. 26, 1957 INVENTOR. 5;! -3 LJOHN DE BAUN BY @D i ATMP/my J. E. DE BAUN MAGAZINE TYPE SAFETY RAZOR Oct. 28, 1958 2 Sheets-Sheet 2 Filed sept. 2e, 1957 "IIEIIIFE Fg. JD.

ETE

, v INVENToR.

JOHN DE BAUN nitedf rates This invention relates to a combination safety razor and dispenser for razor blades, and more particularly has reference to a magazine type safety razor, having a quantity of razor blades therein, and also having a retractible razor head, said razor head being equipped with means for normally holding in place a razor blade, which means is adjustable to-eject an old blade and pick up a new blade for use in the head of the razor.v

The main object of the present invention is to provide a generally improved device of this nature. More specific objects of the invention are as follows:

To provide a novel design for a magazine type safety razor, such that the hou-sing in which the supply of unused blades is kept is adapted for use as a handle;

To provide a novel, retractible razor head, in combination with a supply of unused blades, for facilitating the changing of blades; v

To provide a clamp means on the razor head designed for facilitating' the swift ejection of an old blade and its replacement by a new blade;

To so design said clamp means as to leave the blade' exposed in a way such as to permit accurate shaving, while still eliminating to a maximum extent crevices'in which lather may lodge;

To facilitate the reloading of the magazine whenever the supply of blades is nearing exhaustion; and

To adapt the razor for disposition against the beard without the head of the razor interfering with, or being interferred with, by the housing or magazine of the device.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and' to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. l is a perspective view -of a combination magazine type safety razor and blade dispenser according to the present invention.

Fig. 2 is an enlarged top plan view, the blade-gripping means being shown in full and in dotted lines in its clamping and release positions, respectively.

Fig. 3 is a longitudinal sectional view, on line 3-3 of Fig. 2, `on the same scale as Fig. 2, the head being shown in full lines in its extended position and in dotted lines in its retracted or recharging position.

Fig. 4 is a greatly enlarged, detail sectional view of one of the clamps, substantially on line 4 4 of Fig. l, said4 clamp being shown in its clamping and release positions in full and dotted lines, respectively.

Fig. 5 is a sectional view on line 5 5 of Fig. 3, on the same scale as Fig. 3, showing the underside of the blade head.

Fig. 6 is an enlarged perspective view of one of the blades per se,

v4arent' C) Fig. 7 is an enlarged, detail sectional view through one of the blades, on line 7-7 of Fig. 6.

Fig. 8 is a greatly enlarged', fragmentary, transverse sectional view through the blade head onv line 8-8 of Fig. 1. f f l Fig. 9 is an enlarged, fragmentary, transverse sectional view on the same scale as Fig. 8, taken substantially'on line 9--9 of Fig. 1. i

Fig. 10 is a greatly enlarged sectional view throughthe plunger or pusher assembly, substantially on line 10-10 of Fig. 3.

Fig. l1 is an enlarged, detail sectional view showing,-`

the retractible blade stops, substantially on line 11-11 of Fig. 3.

Fig. l2 is a longitudinal sectional view, on the same scale as Fig. 11, through the stop or detent means of Fig. 1l, taken substantially on line 12-12 of Fig. 11.

Referring to the drawings in detail,gdesignated generally at 10 is a combination handle and magazine, of

rectangular, elongated formation, formed open at its upper end, said handle being so designed as to permit the same to be grasped with maximum convenience.

The handle may be knurled or otherwise roughened as at 11 to facilitate gripping thereof, for a selected portion of the length of the handle, and as shown in Fig. 3, said handle can be formed entirely of plastic material in a commercial embodiment, molded to include a at bottom wall 12, side walls 14, a front wall 16, and a back wall 1,8.

The handle forms a hollow housing for a supply of fresh blades, and referring now to Fig. 3, said'blades areA continuously advanced Within the housing through the medium of a springeloaded follower. As `shown inFig'. 3, extending upwardly within the h ollow housing, in4 a' centrally positioned location, is a stern 20 of circularl cross-section, which may be integral or otherwise made rigid with the bottom wallA 12. Stem 20 extendsv for" slightly more than half the overall length of the housing, i as clearly shown in Fig. 3, and snugly, slidably mountedf upon the stem is a follower 22, having a depending skirtn 24, receiving one end of a compression, coil spring 26,1l end abutting circumposed about the stem with its other against the wall 12.

The follower 22 bears against the lowermost blade of a stack of blades 28. The construction of each lblade is shown in Fig. 6 to particular advantage and aswill be v' noted, in the illustrated example there is shown a'double# edged blade having a rectangular center opening 30. elongated in a direction longitudinally of the-blade. At opposite ends of the blade, wide longitudinal extensions 32 are defined through the provision of angular corner recesses 34 disposed at opposite ends of the cutting edges 36 of the blade.

The stack of blades is held against rotation aboutfstem 20 by slidable contact ofthe end surfacesofthe blades with the respective side walls 14. Stem 20 extends up-v wardly within center openings 30, and by reason 'of the,v illustrated arrangement, the blades` are continuously f biased toward the open end of the housing,

into f engagement with a plurality of detents or stops 38.

The construction of the stops 38 is shown tov best advantage in Figs. 11 and l2. As will be noted, a'pair of identical detents 38V is mounted upon each wall 14, eachl detent comprising a length of thin leaf spring material,l

one end of which is anchored as at 40 to the wall 14. The anchored end of each detent is the upper end thereof, and as shown in Fig. 12, is fully recessed within a depression41 of wall 14.

The detents are inclined from the vertical,in a direc'- 'f tion downwardly, outwardly from the anchored upper ends thereof, and the Vlower ends of the detents include yPatented Oct.` 28, 19,58.'

inwardly extendingabutments 42 adapted to move into openings 44 ofwall 14.

From the above it will be seen that spring 26, tending to expand, biases the stackof blades upwardly into engagement withlthe several abutments `42, which abutments are disposed to engagelthe'longitudinal-endextensions-32 of the uppermost bladelof the stack.

The uppermost blade of -the :stack isdisposedwith its top surface in a plane common to the plane of the top surface offstem 20.

Formed in theinnerVsurfaces of the respective walls 14, and extending vertically the full length of `said `walls medially between the respective -front and

back walls

16, 18 Arespectively, are .guide :grooves 46, and slidably engaged in said guide grooves are support arms 48 adapted to .project beyond the `ope'niend 'ofthe-housing. 0n the upperends 'of'arms 48 there is mounted a blade-support head generally designated 50.

The head is adapted to be extended kan`dfretracted,be tween the full and dotted line positions, respectively, of Fig. 3. In selected positions to which the blade is extended, it is frictionally engaged, that is, the arms 48 frictionally bind in the grooves 46. If desired, onemay utilize detents 'or equivalent means `to releasably Yengage the arms 48 in selected positions to which they -are adjusted longitudinally of slots or grooves 46.

Considering now the construction ofthe-head `50, this includes a relatively thick rectangular-shaped, plate-like body 52, having a transversely lconvex top surface a-nd a flat bottom surface formed with a central, depending boss 54. Boss 54 Ais of a `rectangular configuration, matching the openings 30 of blades 28. Boss 54 is of Aa thickness equal to the thickness of a single blade, shown to best advantage lin Fig. 8. In this connection-itis preferred to use blades `that are substantially thicker than safety razor blades generally used today, and in a commercial embodiment, each blade might be perhaps onesixteenth of an inch in thickness.

In any event, centrallyformed in boss 54 is a shallow, circular depression or recess 56, the depth of `which is equal to the thickness of a single blade 28. Depression 56 complements the cross-sectional configuration of stem 20, that is, the upperextremity of stem is adapted to engage in the depression 56 when the head 50 is shifted downwardly into -the housing for the purpose of picking up a new blade 28.

Referring to Figs. 1,2 and 5, at the several corners of the body 52, there are formed right-angular recesses 58, substantially but not exactly in registration with the corner recesses 34 of blades 28.

Overlying the body portion is a clamping assembly of the blade support head 50. This includes a pair of oppositely, arcuately bowed'spring arms 60. Each arm 60 is bowed inwardly toward the longitudinal median line of the body portion, with Vthefrespectivel arms being symmetrically disposed at opposite sides of said longitudinal median.

Each arm 60 extends in opposite directions from a hold-down plate 64 (see Fig. 8), centrally Yapertu'red as at 65 to receive a screw 66 engaged in a threaded recess 68 of body 52. Depending extensions 69 of plate '64 bear against the midlength portions of the arms 60, so that the arms 60 are anchored to the body 52 at their midlength portions.

TI-'he vseveral arms extend toward the '-corner recesses 58, and on the outer, -free ends of -the arm's there are iixedlysecured fC-shaped clamping ele'm'ents 70 embracing the-body 52 within-'recesses 58.

-As shown inFig. 4, the 'severalclarnping elements 70 have lower ends engaging beveled side surfaces 72 of the extensions 32 of the blades. Said lower ends of the clamping elements are pointed as at 74 and thezpurpose of this arrangement is -to `permit atip 'or pointedend 74 of a `clamping `element -to -move `between adjacent -blades of thestack Vshown in Fig. 3, to engage under the uppermost blade of the stack for the purpose of clampably engaging the same against the underside of body 52.

Referring now to Figs. 2 and 3, integrally formed upon the top surface of the body 52, and extending longitudinally and centrally of the body is an elongated guide rib or tongue 76, which as shown in Fig. 9 is of dovetail or undercut formation. The tongue 76 extends through complementary guide grooves 78 formed on the undersides of wedging or cam elements 80 disposed at opposite sides of the-hold-down plates `64.

The wedgingelements are so designed that when manually shifted toward the hold-down plates from the full tothe dotted lline-positions of said elements 80, the elements will bias the arms 62 disposed at opposite sides thereof outwardlyito the dotted line positions. This will cause the clamping elements 70 to shift outwardly from the blade 28 gripped thereby, thus to release the blade.

Integrally formed upon the outer ends of tongue 76 are upwardly projecting stops 182, which limit the movement 4of the wedg'ing elements in `a direction outwardly from -the center `of the body u 52.

Although not illustrated, Athere `could be provided -a removable cap for the handle, adapted to close the thandle whenlthe head 50is retracted to the dotted line position. This is considered -sufliciently obvious vas not to require special illustration herein.

In use, it will be assumed that the blade head is extended t`o the full line position of Fig. 3. The device is new ready for use in shaving, and is manipulated in the manner of a conventional safety razor.

Ifit-is decided to change blades, one need merely press elements 80 toward each other, by 'exerting a fpushing pressure upo'n `the elements along the line defined by the tongue 76, with the elements being engaged at their outer ends by the thumb and index finger of one hand.

This biases the elements tothe dotted line position of Fig. 2, causing arms to be spread against `the spring tension thereof. Blade 28 is released, and is shaken loose from the underside of the body 52, so as to drop off the head. The entire handle would be held in a horizontal position at thistime, so that the old blade may fallin ha direction laterally from the housing, rather than into the open endof the housing.

After the old blade has been removed, one shifts `the head to the dotted line position of Fig. 3, while still holding th'eclamping elements in released position by gripping the cam'elements 80 in their inwardly biased positions. Head 50, when moved downwardly within the housing, willengage the sloped surfaces of the detents 38 and as the head moves to the dotted line position of Fig. 3 it will bias the detents 38 inwardly to their retract'ed positionsshown in dotted lines in Fig. 12.

T he'stackis thusno longer engaged by the stop means, but the head 50 will, of course, hold the stack from moving yupwardly from its Fig. 3 position.

The head is now moved downwardly to `a slight extent from-'its "'dottediline position of Fig. 3, causing bos's `54 to enteropening'() of the uppermost blade 28. Downward movement of the head is limited by the upper `end of stem20 engaging in depression.

4One now releases the elements 80, moving the same outwardly from each other so that the clamping elements move inwardly into position gripping the uppermost blade. One now pulls the head 50 to its extended position, andas the head moves upwardly, it frees detents 38 so that they move into position engaging the stack against movement upwardly from its Fig. 3 position.

While'I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the `precise construction herein disclosed and that 'various changes and modifications may be made within the scope of the invention as defined in the appended claims.

Having thus described my invention, what l claim as new, and desire to secure by United States Letters Patent 1s:

1. A combination magazine type safety razor and razor blade dispenser, comprising: a hollow, upwardly opening housing shaped to serve as a handle, a stem in said housing on which a stack of blades are supported, means biasing the stack upwardly within the housing, stop means within the housing limiting the upward movement of the blades, and a blade support head mounted on the housing for movement between extended and retracted positions respectively, said head in its retracted position disposed for engaging the uppermost blade of the stack, said head including a rectangular-shaped body and blade-clamping means on the body, said blade-clamping means including a pair of spring arms extending to the several corners of the body, and clamping elements carried by the spring arms at the several corners of the body and adapted for engaging the corner portions of a blade to hold the same against the underside of the body, said blade-clamping means further including wedgeshaped cam elements mounted upon the body for movement toward and away from each other, each cam element disposed between the arms of the pair of the spring arms and adapted for movement as a spreader to shift the arms against the spring tension thereof to a bladereleasing position.

2. A combination magazine type safety razor and razor blade dispenser, comprising: a hollow, upwardly opening housing shaped to serve as a handle, a stern in said housing on which a stack of blades are supported, means biasing the stack upwardly within the housing, stop means within the housing limiting the upward movement of the blades, and a blade support head mounted on the housing for movement between extended and retracted positions respectively, said head in its retracted position disposed for engaging the uppermost blade of the stack, said head including a rectangular-shaped body and blade-clamping means on the body, said blade-clamping means including a pair of spring arms extending to the several corners of the body, and clamping elements carried by the spring arms at the several corners of the body and adapted for engaging the corner portions of a blade to hold the same against the underside of the body, said blade-clamping means further including wedge-shaped cam elements mounted upon the body for movement toward and away from each other, each cam element disposed between the arms of the pair of the spring arms and adapted for movement as a spreader to shift the arms against the spring tension thereof to a blade-releasing position, the body formed with a longitudinal guide tongue on which said cam elements are slidablymounted.

3. A combination magazine type safety razor and razor blade dispenser, comprising: a hollow, upwardly opening housing shaped to serve as a handle, a stem in said housing on which a stack of blades are supported, means biasing the stack upwardly within the housing, stop means within the housing limiting the upward movement of the blades, and a blade support head mounted on the housing for movement between extended and retracted positions respectively, said head in its retracted position disposed for engaging the uppermost blade of the stack, said head including a rectangular-shaped body and blade-clamping means on the body, said stop means comprising detents movably mounted upon opposite walls of the housing in position to extend as abutments in the path of movement of the stack along the stem, said detents inclined obliquely to the path of movement of the head, and adapted to be retracted by the head on movement of the head to its retracted position, whereby to release the uppermost blade of the stack, said head having means for gripping the released uppermost blade, for movement with the head from the retracted to the extended position of the head, the means biasing the stack upwardly including a follower slidably mounted upon the stern and a spring held under compression between the follower and one wall of the housing, said spring circumposed about the stem, the body of the head having on its underside a boss engaging in an opening in the uppermost blade to hold the uppermost blade on the head.

4. A combination magazine type safety razor and razor blade dispenser, comprising: a hollow, upwardly opening housing shaped to serve as a handle, a stem in said housing on which a stack of blades are supported, means biasing the stack upwardly within the housing, stop means within the housing limiting the upward movement of the blades, and a blade support head mounted on the housing for movement between extended and retracted positions respectively, said head in its retracted position disposed for engaging the uppermost blade of the stack, said head including a rectangular-shaped body and bladeclamping means on the body, said stop means comprising detents movably mounted upon opposite walls of the housing in position to extend as abutments in the path of movement of the stack along the stem, said detents inclined obliquely to the path of movement of the head, and adapted to be retracted by the head on movement of the head to its retracted position, whereby to release the uppermost blade of the stack, said head having means for gripping the released uppermost blade, for movement with the head from the retracted to the extended position of the head, the means biasing the stack upwardly including a follower slidably mounted upon the stem and a spring held under compression between the follower and one wall of the housing, said spring circumposed about the stern, the body of the head having on its underside a boss engaging in an opening in the uppermost blade to hold the uppermost blade on the head, said boss having a shallow, downwardly opening, central depression complementing the stem, whereby said stem on movement into the depression will limit the head against movement beyond the retracted position thereof.

References Cited in the file of this patent UNITED STATES PATENTS 1,791,042 Shick Feb. 3, 1931 1,859,083 Gaisman May 17, 1932 1,999,129 Minnelli Apr. 23, 1935 2,572,925 Gray Oct. 30, 1951 2,603,860 De Swart July 22, 1952 2,624,109 Cardenas Ian. 6, 1953 2,630,626 Arms Mar. 10, 1953