US2982442A

US2982442A - Safety razor blade dispensing magazine with used blade compartment

Info

Publication number: US2982442A
Application number: US767906A
Authority: US
Inventors: Kuhnl Leopold Karl
Original assignee: Eversharp Inc
Current assignee: Eversharp Inc
Priority date: 1958-10-17
Filing date: 1958-10-17
Publication date: 1961-05-02
Anticipated expiration: 1978-05-02

Description

May 2, 1961 KUHNL 2,982,442

L. K. SAFETY RAZOR BLADE DISPENSING MACHINE WITH USED BLADE COMPARTMENT Filed Oct. 17, 1958 2 Sheets-Sheet 1 ,9 W- M EHHIHTH|WNW] I INVENTOR.

May 2, 1961 2,982,442

L. K. KUHNL SAFETY RAZOR BLADE DISPENSING MACHINE WITH USED BLADE COMPARTMENT Filed Oct. 17, 1958 2 Sheets-Sheet 2 4/ I g 7 42 K47 INVENTOR.

ZMZ/ ZW/IW United States Patent Q SAFETY RAZOR BLADE DISPENSING MAGAZINE WITH USED BLADE COMPARTMENT V Leopold Karl Kuhnl, Stratford, Conn.,assignor to Eversharp, Inc., New York, N.Y., a corporation of Delaware Filed Oct. 17, 1958, Ser. No. 767,906

3 Claims. or. 221-102 the reception and confinement of the blades after they have been used in and removed from the razor. While the foregoing statements are indicative in a general way of the nature of the invention other more specific objects and advantages will be apparent to those skilled in the art upon a full understanding of the construetion, arrangement and'function of the several parts which have been combined to form, the magazine,

'A preferred embodiment of the invention is presented herein but it will of course be appreciated that the invention is susceptible of incorporatlon'in other forms coming equally within the scope of the appended claims.

a In the accompanying drawings:

h 'Fig. 1 is a side view of the magazine assembly;

Fig. 2 is a top view of the same; Fig. 3 is a bottom view of the same;

Fig. 4 is an opposite side view of the same;

" Fig.5 is a front end view of :he same;

Fig. 6 is a rear end view of the same;

Fig. 7 is a side view of the inner'shell, backstop and closure cap sub-assembly;

Fig. 8 is a top view of the sub-assembly;

Fig. 9 is a side view of the inner shell;

Fig. 10 is a top'view of the same;

Fig. 11 is a transverse sectional view, taken on the line 11-11 of Fig. 9; p

Fig. 12 is a side view of the backstop; 5

i Fig. 13 is a front end view of the same;

' Fig. 14 is a top view of the same; I

Fig. 15 is a side view of the closure cap; Fig. 16 is a front end view of the same; and Fig. 17 is atop view of the-same.

The new blade dispensing magazine is adapted for use with a safetyrazor of the general type shown for example in Rodrigues Patent No. 1,969,945, or Preis and Kuhnl application for patent Serial No. 425,618, now Patent No. 2,911,714, issued November 10, 1959, or Kuhnl application for patent Serial No. 734,653, now Patent No. 2,911,713, issued November 10, 1959.

The magazine includes a housing 10 in the upper portion of which a stack 11 of new blades 12' is positioned. The housing 10 is horizontally elongated and is of generally rectangular cross section. it is characterized by a top. wall '13 against the underside of which the uppermost.

blade 12in the stack of blades is positioned, a bottom wall 1'4,a near side wall 15, a far side wall 16, and a front end wall 17. The rear endof the housing is open. :Thefhousing 10 is provided, at the'front end ofthe far side wall 16, with a forwardly projecting finger 18. The finger 18, when the magazine is to be used to insert fateiited May 2, 1961 a new blade into the head of an associated razor (not shown), is forced endwise into an opening in the resiliently expansible head of the razor, into a position between the cap and seat portions of the head, where

small cams

19 and 20 on the finger 18 act 10 wedge apart the cap and seat. portions of the head to both release the clamping pressure on the used blade in the head and facilitate the insertion of the new blade.

The top wall 15 of the housing is provided with a longitudinally extending open-ended slot 21 in and along which a blade pushing member 22 is adapted to reciprocate. The member 22 is provided exteriorly of the housing with a finger grip portion 23 of generally U- shaped cross section which slidingly embraces the top wall. 13 and the upper portions of the near and far side walls. 15 and 16, and the member 22 is provided interiorly of the housing with a thin flat plate portion 24 for endwise: abutment with the rear end of the uppermost blade 12 inn the housing. .The stroke of the member 22 is limited by small outwardly pressed

projections

25 and 26 on thefar wall 16 adjacent the front and rear ends of the latter,... which projections are engaged by a small downwardly extending portion 27 of the finger grip portion 23 whem the member 22 reaches its fully advanced and fully retracted positions.

The front end wall 17 of the housing is provided With-z an angularly disposed portion 28 where it joins with the: front end of the near side wall 15, which angularly dis posed portion interfits with the front beveled corners; of the sharp edges 29 of the blades and positions all of. the blades in'the stack against the far side wall 16 im spaced relation to the near side Wall 15. V

The bottom wall 14- of thehousing is provided adjacent its rear end with an opening 39 through which the blades, after having been used in the head of the razor, are adapted to be inserted into a used blade compartment 31 in the lower portion of the housing. The opening 30 for the used blades is of laterally elongated generally rectangular form and is just large enough to permit the ready passage of a blade when the latter is tilted upwardly and forwardly, preferablywhen accompanied by a slight endwise fiexure of the blade.

tThe housing 10 may be advantageously constructed as a one-piece sheet metal stamping, with the front end wall 17 of the housing formed by flanging the front end ofthe near side wall 15 toward the far side wall 16, and with the longitudinally'extending slot 21 in the top wall formed by spacing apart the confronting

edges

32 and 33 of the stamping, but it-will of course be appreciated that the housing may be made in other ways and also of other materials.

The compartment 31 for the used blades is formed within the lower portion of the housing 10 by a separate inner shell 34, which is also preferably made as a sheet metal stamping. The inner shell 34 is provided with an upper horizontally disposed wall 35 and with laterally spaced side walls 36, which side walls rest at their lower edges upon the bottom wall 14 of the housing. The front end 37 of the inner shell abuts against the front end wall 17 of the housing and is shaped at its near front corner to conform with the angularly disposed por tion 28 of the front end wall 17. The rear end of the upper wall 35 of the inner. shell is provided with a rearwardly extending flange 38 which is provided with a small barb 39, for a purpose which will later be described.

Associated with the rear end of the inner shell 34 is a separate sheet metal backstop 40. The backstop 40 is of generally U-shaped rearwardly opening form and is characterized by two laterally spaced slightly diverging side flanges 41 and a front cross web 42, the latter having a straight portion 43 and an augularly disposed portion 44. The cross web 42 of the backstop 40 fits over and against the upper surface of the rear end of the upper 'wall 35 of the inner shell 34, and the front portionsof the side flanges 41 of the backstop are set back with respect to the cross web42 to provide front edges 45 which abut with the rear edges 46 of the side walls 36 of the inner shell. In the assembled condition of the magazine the angularly disposed portion 44 of the cross web 42 of the backstop 40 interfits with and positions the rear beveled corners of the sharp edges 29 of the blades 12 in the stack.

Within the backstop 40 is located a closure cap 47 which is preferably of solid block-like composition construction. The closure cap 47 fits snugly between the side flanges 41 of the backstop and is provided in its front face with a slot 48' in which the rearwardly extending flange 38 at the rear end of the upper wall 35 of the inner shell is positioned. The barb 39 on the flange 38 imbeds itself in the material of the closure cap when the inner shell 34, backstop 40 and closure cap 47 are assembled with each other, locking the sub-assembly parts securely together. The front portion of the closure cap 47 below the slot 43 closes off the rear end of the used blade compartment 31 and is preferably beveled downwardly and rearwardly at 49 to enlarge the used blade compartment at a point immediately to the rear of the opening 30 through which the used blades are inserted. The near and far sides 50 of the closure cap are relieved for an amount corresponding approximately to the thickness of the side flanges 41 of the backstop 40 in order to accommodate such flanges, while the backstop rearwardly of such relieved portions is of substantially the same shape and size as the rear open end of the housing and provides a solid closure for the rear end of the housing in substantially flush relation to the latter. The upper edge of the cross web 42 of the backstop 40 and the upper surface of the closure cap 47 are provided with

shallow grooves

51 and 52 to accommodate the plate portion 24 of the blade pushing member 22 in the fully retracted position of the latter.

In assembling the several parts of the improved magazine, the stack 11 of new blades 12 is positioned on the upper wall 35 of the inner shell 34, on an interposed leaf spring 53, which spring acts to press the blades upwardly, and the sub-assembly comprising the inner shell 34, backstop 40 and closure cap 47 is then inserted into the open rear end of the housing 10 until the front edge 37 of the inner shell abuts with the front end wall 17 of the housing. This sub-assembly is then looked in position by means of small tongues 54 on the rear ends of the side flanges of the backstop 40 which spring outwardly into locked association with small apertures 55 provided in the near and far side walls and 16 of the housing.

I claim:

1. In a blade dispensing magazine of the type in which the uppermost blade in a stack of new blades is adapted to be pushed endwise into shaving position in the head of an associated razor, a horizontally elongated housing of generally rectangular cross section in the upper portion of which the stack of new blades is adapted to be positioned, a spring beneath the stack for pushing the stack upwardly against the top of the housing, an inner shell in the lower portion of the housing, which inner shell rests upon the bottom of the housing and is provided with an upper horizontally disposed wall in vertically spaced relation to both the top and the bottom of the housing, on which upper wall the spring is supported, a backstop in the rear end of the housing which engages and positions the rear end of the stack of new blades and also engages and positions the rear end of the inner shell, and means forlocking the backstop in the housing, said inner shell affording beneath the upper wall of the same a compartment for the reception of used blades, and the bottom of said housing being provided intermediate the ends of said inner shell with an opening through which used blades are adapted to be inserted into said compartment, said housing having an open rear end, and said inner shell. and backstop being connected together and being insertable as a unit in the housing through the open rear end of the latter.

2. In a blade dispensing magazine of the type in which the uppermost blade in a stack of new blades is adapted to be pushed endwise into shaving position in the head of an associated razor, a horizontally elongated housing of generally rectangularcross section in the upper portion of which the stack of new blades is adapted to be positioned, a spring beneath the stack for pushing the stack upwardly against the top of the housing, an inner shell in the lower portion of the housing, which inner shell rests upon'the bottom of the housing and is provided with an upper horizontally disposed wall in vertically spaced relation to both the top and the bottom of the housing, on which upper wall the spring is supported, a backstop in therear end of the housing which engages and positions the rear end of the stack of new blades and also engages and positions the rear end of the inner shell, and means for locking the backstop in the housing, said inner shell affording beneath the upper wall of the same a compartment for the reception of used blades, and the bottom of said housing being provided intermediate the ends of said inner shell with an opening through which used blades are adapted to be inserted into said compartment, said backstop being of rearwardly opening generally U-shaped form, and a closure cap for the rear end of the housing, which cap is positioned with in the backstopsubstantially flush with the rear end of the housing.

3. In a blade dispensing magazine of the type in which the uppermost blade in a stack of new blades is adapted to be pushed endwise into shaving position in the head of an associated razor, a horizontally elongated housing of generally rectangular cross section in the upper portion of which the stack of new blades is adapted to be positioned, a spring beneath the stack for pushing the stack upwardly against the top of the housing, an inner shell in the lower portion of the housing, which inner shell rests upon thebottom of the housing and is provided with an upper horizontally disposed wall in vertically spaced relation to both the top and the bottom of the housing, on which upper wall the spring is supported, a backstop in the rear end of the housing which engages and positions the rear end of the stack of new blades and also engages and positions the rear end of the inner shell, and means for locking the backstop in the housing, said inner shell affording beneath the upper wall of the same a compartment for the reception of used blades,

and the bottom of said housing being provided intermediate the ends of said inner shell with an opening through which used blades are adapted to be inserted into said compartment, said backstop being of rearwardly opening generally U-shaped form, and a closure cap for the rear end of the housing, which cap is positioned within the backstop substantially flushwith the rear end of the housing and, is connected with the inner shell.

References Cited in the file of this patent UNITED STATES PATENTS 2,608,755 Fennelly Sept. 2, 1952 2,674,036 Butlin Apr. 6, 1954 2,748,980 Muller June 5, 1956 2,792,933 Butlin May 21, 1957 2,831,601 Treiss Apr. 22, 1958 U FOREIGN PATENTS I 805,143 Germany May 7, 1951