Spacer for razor

Abstract

A razor blade assembly has a handle, a head having a cutting blade assembly of one or more cutting blades connected to the handle; and a spacer which is mounted to or is formed as part of the head to space the cutting edges of the blades from the skin of a user to create and maintain a 5 o'clock shadow appearance beard in the range of 0.1 mm to 0.4 mm in thickness.

Claims

1. A razor assembly comprising; a blade assembly configured to attach to a handle, the blade assembly comprising one or more cutting blades and a spacer, wherein the spacer is configured to adjust a depth of the one or more cutting blades creating a gap between the one of more cutting blades and a skin surface, the spacer comprising: a top wall and a bottom wall, wherein the bottom wall defines a skin engagement surface; a first side wall and a second side wall, wherein the first side wall and the second side wall connect the top wall to the bottom wall at opposite ends; and a plurality of ribs configured to define the gap between the one or more cutting blades and the skin surface, wherein each of the plurality of ribs traverse between the top wall and the bottom wall; each of the plurality of ribs includes a top rib surface and a bottom rib surface, wherein the bottom rib surface is proximate the one or more cutting blades, each top rib surface and bottom rib surface having a flat portion and a smooth curved portion; and wherein a distance between the flat portion of the top rib surface and the bottom rib surface at a first location is greater than a distance between the flat portion of the top rib surface and the bottom rib surface at a second location, wherein the plurality of ribs define a plurality of cavities having a vertical dimension between the top wall and the bottom wall and a horizontal dimension defined by a distance parallel to the top wall and the bottom wall, wherein at least one of the plurality of cavities has a size differing from the others of the plurality of cavities.

2. The razor assembly of claim 1, wherein the plurality of ribs extends beyond a portion of the bottom wall.

3. The razor assembly of claim 2, wherein the blade assembly is configured to detach from the handle.

4. The razor assembly of claim 2, wherein the spacer is configured to detach from the one or more cutting blades.

5. The razor assembly of claim 1, further comprising a fastener that facilitates removeable attachment of the spacer to the blade assembly.

6. The razor assembly of claim 1, wherein the plurality of ribs are not parallel to the first and second side walls.

7. The razor assembly of claim 1, wherein the bottom wall comprises an extension portion that includes an entry surface, the entry surface being configured to receive hair from a skin surface.

8. The razor assembly of claim 1, wherein the top wall comprises a stop surface configured to prevent further cutting by the blades.

9. The razor assembly of claim 1, wherein the first side wall and the second side wall are tapered such that the top wall is positioned above the bottom wall.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 illustrates a man with a close shave, a “5 o'clock shadow” shave and a bearded shave;

(2) FIG. 2 is a top plan view of a razor blade and handle assembly and a cap in accordance with one embodiment of the disclosure;

(3) FIG. 3 is a top plan view of a carrying case and razor blade and cap in accordance with another embodiment of the disclosure;

(4) FIG. 4 is a top plan view of a handle, blades and caps in accordance with another embodiment of the disclosure

(5) FIG. 5 is a perspective view of a blade cap positioned over a blade cutting edge in accordance with another embodiment of the disclosure;

(6) FIG. 5A is a cross-sectional view taken along line 5A of FIG. 5;

(7) FIG. 6 is a bottom plan view of the blade cap of FIG. 5;

(8) FIG. 7 is a top plan view of the cap of FIG. 5;

(9) FIG. 8 is a rear elevational view of the cap of FIG. 5;

(10) FIG. 9 is side elevational view of the cap of FIG. 5;

(11) FIG. 10 is a bottom plan view of the cap of FIG. 5;

(12) FIG. 11 is a front elevational view of the cap of FIG. 5;

(13) FIG. 12 is a top plan view of a cap with angled ribs at a 45 degree angle in accordance with another embodiment of the disclosure;

(14) FIG. 13 is a top plan view of a cap with angled ribs at a 60 degree angle in accordance with another embodiment of the disclosure;

(15) FIG. 14 is a perspective view of a cap installed on a razor blade in a storage position in accordance with another embodiment of the disclosure;

(16) FIG. 15 is a perspective view of the cap installed on a razor blade in an in-use position in accordance with another embodiment of the disclosure.

DETAILED DESCRIPTION OF THE DISCLOSURE

(17) With reference now to FIGS. 2-11, 14 and 15, a preferred embodiment of a razor blade cap is shown and described. The Figures illustrate a preferred embodiment of the disclosure only is not limited to the embodiments of the Figures. Variations and modifications are contemplated by the disclosure.

(18) Referring to FIG. 2, a disposable razor blade assembly A includes a handle 10 and a head 12 which receives razor blade(s) 14. The blade head is preferably snapped into and locks into the upper end of the handle using tabs 16 (FIG. 3) or other locking mechanisms may be snapped or moved to engage and disengage the blade head 12 from the handle 10.

(19) The handle 10 may be rectangular or cylindrical in conformation and may taper from a narrow end 18 adjacent the blade head to a wider end 20 for gripping comfort.

(20) Referring to FIG. 2, various dimensions for the razor blade assembly are contemplated. For example, the length L of the handle can be about 134 mm and length L2 of the wide end 20 may be about 22 mm. The blade head itself can be about 0.40 mm long (L3). One embodiment of a cap or spacer 30 preferably has a length L4 of about 0.45 mm.

(21) Referring now to FIG. 3, a carrying case 33 such as with a clam-shell style plastic housing 31 with a hinged cover 35 is shown which can for example conveniently house the razor blade handle 10, three blade heads 12, and three or more caps 30, 32, 34.

(22) FIG. 4 illustrates the handle 10 which may have ridges or knurs 11 forming an improved ergonomic design for easy gripping, the blade heads 12, and three caps 30, 32, 34 of various gauges.

(23) The caps can be provided in the same gauge or in different gauges. “Gauge” refers to the thickness of the desired shave; e.g., a 0.1 mm gauge refers to a 0.1 mm thickness beard, etc. As an example, cap 30 has gauge or thickness of 0.1 mm, cap 32 has a gauge of 0.2 mm, while cap 34 has a gauge of 0.4 mm. Other caps can have a gauge of 0.3, 0.35, etc. Many other gauges particularly in the range of 0.1 mm to 0.4 mm are contemplated by the disclosure.

(24) For example, the 0.1 mm gauge cap 30 results in approximately a 0.1 mm thick beard since it spaces and positions the blades approximately 0.1 mm from the skin, the 0.2 mm gauge cap 32 provides an approximately 0.2 mm thick beard, while a 0.4 mm gauge cap 34 provides approximately a 0.4 mm thick beard, and so on. An optimum beard thickness would be around 0.35 mm thickness. The caps can be made of any suitable material, such as plastic or metal but slightly flexible plastic is preferred. The caps can be made from molds, extrusions or any suitable manufacturing method.

(25) Referring now to FIGS. 5-11, the details of a preferred embodiment of cap 30 are shown and explained. Other caps 32, 34 will have essentially the same features except for the gauge or thickness. The cap 30 is a 0.1 mm gauge cap used for maintaining a 5 o'clock shadow which has an optimum beard or hair thickness of 0.1 mm. The cap has two side walls 36, 38 which are parallel to each other, a first or back wall 40 which is perpendicular to side walls 36, 38. A second or front wall 42 extends between walls 36, 38 and is perpendicular to walls 36, 38.

(26) Side walls 36 and 38 are preferably tapered or angled resulting in wall 44 being positioned at an angle or slightly above wall 42. A plurality of cavities 45 are formed between walls 36, 38, 40, 42 and between ribs 50. An extension or top wall 44 extends from an upper end 46 of wall 40 between walls 36, 38, while a second extension or bottom wall 48 extends from bottom wall 42 between walls 36, 38. The protrusion walls 44, 48 add rigidity and may also aid in mounting the cap to the blade head. Wall 44 may also have wings or curved edges 47,49 for added rigidity.

(27) Wall 48 serves as a facial hair receiving or entry surface. Referring to FIG. 5A, surface 51 of wall 48 is spaced or positioned below surface 53 of wall 44 by dimension “B” and below an upper cutting edge 55 of a cutting blade 14 by dimension “C”. This allows the hair to be cut to not bend or get crimped by the edge of the cap and align the hair with and be engaged by the cutting edges 55 of blade 14. The ribs or facial hair guides 50 engages the skin of the face of the user, and serves to space the surface to be shaved from the blade cutting edge 55 to result in a specific hair length (referred to as gauge thickness). The shaving direction is shown in FIGS. 5 and 5A. The wall 44 can serve as a stop surface for preventing further cutting and also to facilitate removal of the cut hair from the face of the user.

(28) Several ribs or facial hair guides 50 extend between and connect wall 44 and wall 48. The ribs may be chamfered and tapered between walls 44 and 48. Nine ribs are shown, but other numbers are contemplated by the disclosure. The ribs are shown as substantially equally spaced, but other spacing is contemplated by the disclosure. The ribs are substantially parallel to each other and form a grid and due to the thickness T of the ribs serve as a spacer for spacing the cutting edge 55 of the blade 14 from the user's skin. That is, the blades cutting edges are positioned below the ribs. Thus, the thicker the ribs, the thicker (i.e., higher gauge) the shave (i.e., the hair is longer). The thinner the ribs (i.e., lower gauge), the closer the shave (i.e., the hair is shorter). In this example, the ribs have a thickness T of about 0.1 mm to form a 0.1 mm thick beard which is referred to as a “5 o'clock shadow”.

(29) The ribs 50 of the cap thus are able to create and maintain a certain thickness of shave, commonly referred to as a “5 o'clock shadow”. The optimum thickness for a 5 o'clock shadow appearance Is in the range of 0.1 mm to 0.4 mm in thickness. Thus, the various thickness T of the ribs can be about 0.1 mm, 0.2 mm, 0.3 mm and 0.4 mm. Other thicknesses are contemplated by the disclosure.

(30) The caps 30, 32, 34 have a gauge thickness ranging from 0.1 mm to 0.4 mm to create a “5 o'clock shadow”. The caps can have various size grills and various numbers of ribs and may be configured to fit various blades such as two, three, four, five or six blades. FIGS. 7-11 show various views of the structure of the cap 30.

(31) Two resiliently biased clips 52, 54 are formed on and protrude from opposite side walls 36, 38 for removably attaching the cap onto a blade by snapping or clicking the cap onto the sides of the blade head. The clips are slightly flexed outwardly and snap into place to retain the clip onto the blade itself. As an alternative, the cap can be formed as part of the head itself to provide a complete integral and disposable unit.

(32) By placing the cap directly on the blade head 12 directly above blades 14 (see FIG. 15), various thicknesses of shave can be easily obtained. Thus, there is no longer a need to grow a beard for one to three days and then shave it off and repeating the process to maintain the “5 o'clock shadow” look. The cap of the preferred embodiment allows the user to easily and uniformly and consistently create and maintain the “5 o'clock shadow” look with either a manual, disposable razor or an electric trimmer. Referring to FIG. 14, the cap 30 may be snapped or removably secured to the rear of the blade head in an in-storage position.

(33) Referring to FIG. 12, in accordance with another embodiment of the disclosure, the ribs 60 may be angled at 45 degrees with respect to walls 40, 42. Referring to FIG. 13, the ribs 62 may be angled at 60 degrees with respect to walls 40, 42. By angling the ribs, a smoother shave may occur and possible bald spots can be minimized on the user's face.

(34) The caps can also be adjustable and can be hinged or rotatably connected to the blade such that the cap can be rotated into position over the blade when the 5 o'clock shadow shave is desired and then be rotated away from the blade so the blade can perform a close shave on the other areas of the user's face.

(35) The caps can be provided separately, as a disposable, and as well as with a variety of item commercially available razors, such as Gillette®, Harry's®, Schick®, Dollar Shave Club®, etc. and can also be provided with the razor and blade.

(36) The cap can also be provided directly on the blade head or can be formed as part of the blade head for a particular gauge beard thickness as a complete, disposable unit including the blade head and handle. The cap also can be removable and reusable.

(37) The embodiments discussed above are illustrative only. Various other embodiments are encompassed by and contemplated by the disclosure and the appended claims.