US2793431A

US2793431A - Safety razor with pivoted cap

Info

Publication number: US2793431A
Application number: US570380A
Authority: US
Inventors: Fortin Romeo
Original assignee: Individual
Current assignee: Individual
Priority date: 1956-03-08
Filing date: 1956-03-08
Publication date: 1957-05-28
Anticipated expiration: 1974-05-28

Description

y 1957 R. FORTIN SAFETY RAZOR WITH PIVOTED CAP Filed March 8, 1956 ill Wt Z Z Z fi/ SAFETY RAZOR WITH PIVOTED CAP Romeo For-tin, Quebec, Quebec, Canada Application March 8, 1956, Serial No. 570,380 4 Claims. (Cl. 30-59) The present invention pertains to a novel safety razor.

The principal object of the invention is to provide such a razor which requires only a fraction of a second to fix or remove the blade. Another object of the invention is to provide a razor that can be operated with one hand and in which it is not necessary to touch the blade.

A further object of the invention is to provide a safety razor comprising a reduced number of parts and which is of simple and economical construction. Other objects of the invention are simplicity in cleaning, attractive form, lightness, good equilibrium, all of which result in fast and clean shaving.

In the accomplishment of these objects, the invention comprises an elongated handle at one end of which is fixed a rectangular head or plate having a central longitudinal rib and having slots at the longitudinal edges. At one end of this plate is hinged a complementary plate of similar form and having a central longitudinal slot to receive the rib. At the hinge the complementary plate is extended in the form of a depending lever. The opposite end of the same plate is formed with a pair of notched dogs to receive teeth formed on a slide which moves through the handle and the aforementioned lever. The slide has another pair of teeth adapted to engage the lever whereby, pressure on the slide not only releases the free end of the complementary plate but also swings it upward to free the blade.

The invention is fully disclosed by way of example in the following description and in the accompanying drawings in which:

Figure 1 is a perspective view of the device;

Figure 2 is a side elevation;

Figure 3 is an elevation of a perpendicular side;

Figure 4 is another elevation illustrating a different position of parts;

Figure 5 is a section on the line 5-5 of Figure 2;

Figure 6 is a section on the line 6-6 of Figure 4; and

Figure 7 is a section on the line 77 of Figure 2.

Reference to these views will now be made by use of like characters which are employed to designate corresponding parts throughout.

As in all safety razors the device comprises an elongated handle 1 provided at one end with a head 2 in the form of an arched rectangular plate centered on the upper end of the handle. The longitudinal edges of the plate are curved downward at 3 to form a greater curvature at these edges than between the edges, as may be seen in Figure 7. Near each curved end 3 the plate is formed with two alined slots 4.

The center of the plate 2 is formed with an upward longitudinal rib or tenon 5 which is received in a razor blade 6 having a corresponding longitudinal slot. The curved ends 3 are apertured at one end 7 to receive the end trunnions 8 of a pair of curved tongues 9 formed on the sides of a V-shaped lever 10 as shown more clearly in Figure 1. The lever is dependent from the plate 2 and is joined by a complementary plate 11 which is also arched and overlies the plate 2. Each corner of the plate 11 at the end opposite the lever 10 is formed with a depending dog 12 having a notch 13 for a purpose that will presently be described.

The plate 11 is formed with a central longitudinal slot 14 designed to receive the rib 5. The lever 10 is formed ted States Patent 0 2,793,431 Patented May 28, 1957 ice at its lower end with a slot 15 in which slides a flat metal 'member 16. The handle 1 is likewise apertured at 17 to receive the member or slide 16. The outer end of the slide, at the slot 15, is bent downward at 18 to be manipulated by the thumb. At the opposite side of the slot 17 the member 16 takes an upward S-curve to pass between the notches 13, after which it is widened to 2. depending end 20. The edges of the widened portion 20 are formed with teeth 21 adapted to be received in the notches 13. Additional teeth 22 are formed near the opposite end of the slide 16 for a purpose that will presently appear.

Figures 1 and 2 show the device ready for use. The longitudinal slots 4 serve to release the soap which the blade 6, received between the

plates

2 and 11, has removed from the face, together with the hair that has been removed. This release and removal is facilitated by the curved edges 3 already described. In this position the teeth 21 are lodged in the corresponding notches 13 whereby the plate 11 holds the blade 6 on the plate 2.

When it is desired to insert a new blade, the end 18 of the slide 16 is pushed in the direction shown by the arrows in Figures 1 and 2 with the thumb that holds the handle 1. In this movement the teeth 21 slide out of their notches 13, also freeing the dogs 12 which are integral with the plate 11. The latter, being disengaged at one end, pivots on the trunnions 8 since the pressure on the end 18 cams the slide through its S-curve 19, as shown in Figure 4. Downward pressure on the finger piece 18 completes the use of the plate 11. With the plate 11 lifted, the blade 6 is no longer secured and drops out on inverting the razor. A new blade may then be easily replaced, after with pressure is applied on the end 20 at the end of the slide 16, with the same thumb that was used in the previous operation. The teeth 22 of the slide 16 engage the lever 10 to lower the upper plate 11, and the teeth 21 enter their notches 13 to secure the assembly. The entire operation is rapid and does not require touching the used blade 6.

Althuogh a specific embodiment of the invention has been illustrated and described, it will be understood that various alterations in the details of construction may be made without departing from the scope of the invention as indicated by the appended claims.

What I claim is:

1. A safety razor comprising a handle and a head plate thereon, a complementary plate having a lever at one end, said lever being hinged to one end of said head plate, a pair of notched depending dogs at the other end of said complementary plate, a slide in said lever and adapted to enter the notches of said dogs to retain said complementary plate, said slide having a finger piece outwardly adjacent to said lever, whereby pressure on said finger piece raises said complementary plate.

2. A safety razor as set forth in claim 1, wherein said slide passes through said handle.

3. A safety razor as set forth in claim 1, said slide having teeth engageable with the inner surface of said lever, whereby a retractile push on said slide lowers said complementary lever.

4. A safety razor as set forth in claim 1, said slide having teeth engageable with the inner surface of said lever, whereby a retractile push on said slide lowers said complementary lever, the end of said slide opposite said lever being bent downward.

References Cited in the file of this patent UNITED STATES PATENTS 1,774,419 Carpenter Aug. 26, 1930 1,996,503 Darby Apr. 2, 1935 2,217,792 Carlson Oct. 15, 1940 2,582,041 Kaplan Ian. 8, 1952