Improved Razor and Razor Handle Assembly

The spherical handle razor design enhances control and reduces cuts by allowing direct fingertip pressure and rotational movement, addressing the limitations of pivot-based razors with improved usability and manufacturing efficiency.

JP7710730B2Active Publication Date: 2025-07-22RAZATECH INC
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Patent Information

Application Number
JP2021543516
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2019-04-12
Filing Date
2020-01-24
Publication Date
2025-07-22
Estimated Expiration
2040-01-24

AI Technical Summary

Technical Problem

Existing safety razors with pivot means between the head and handle separate the user's hand further from the blade, making it difficult to control the angle and pressure, leading to reduced shaving control and increased likelihood of cuts and razor burn, while also having complex assembly and higher manufacturing costs.

Method used

A razor design featuring a substantially spherical handle with a razor head attached, allowing the handle to be held in two configurations: directly in the palm for fingertip pressure control and between the thumb and fingers for rotational movement, enabling precise control and reduced risk of cuts.

Benefits of technology

The ergonomic design improves shaving quality by allowing better control over the razor, reducing cuts and razor burn, and simplifies assembly and manufacturing.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

A razor and razor handle assembly are disclosed that provide better control when shaving. The razor includes a substantially spherical handle to which a razor head having one or more blades is attached, the handle having a diameter of approximately 3 cm to 5 cm, and the distance between the razor head and the handle is less than half the width of the razor head. The razor is sized and shaped so that the spherical handle can be held in the palm of a user's hand in a first configuration so that the fingertips of the hand can apply direct pressure to the razor head, and in a second configuration so that the razor can be held between the user's thumb and fingertips so that the razor can rotate about at least two axes by relative movement of the user's thumb and fingers.
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Description

Technical Field

[0001] The present invention relates to a shaving razor. More particularly, the present invention relates to, but is not limited to, a safety razor.

Background Art

[0002] Shaving is a common practice in many parts of the world. This may involve removing facial hair, armpit hair, leg hair, or other body hair. Most commonly, disposable (or partially disposable) safety razors are used for shaving. These safety razors typically include a razor head having one or more blades, and a slender handle extending from the head at a right angle to the head.

[0003] FIG. 1 shows an example of one such safety razor 100 according to the prior art. The razor 100 includes a razor head 105 having a plurality of blades 110, and the razor head is attached to a slender handle 115. In use, the user grips the handle with hand 120 and draws it across the skin during the shaving operation.

[0004] Since the body, particularly the face, is not of uniform shape, the user usually has to twist the arm or wrist so that the blades 110 contact the skin at an appropriate angle. Since there is a limit to this movement of the wrist, it is generally difficult to hold the razor 100 such that the blades 110 contact the skin at an appropriate angle.

[0005] Some attempts have been made to mitigate this problem, including incorporating pivot means 125 between the head 105 and the handle 115 so that the head 105 conforms to the shape of the user.

[0006] The problem with such pivot means 125 is that it further separates the user's hand 120, which is already far due to the long handle 115, from the blade, which can make it more difficult for the user to accurately control the position and pressure of the blade against the skin. Specifically, since the angle of the head 105 pivots with respect to the handle 115, the user is unable to control the angle of the blade.

[0007] Furthermore, the pivot means 125 is typically biased towards the central (rest) position, and thus, the amount of pressure applied to the skin depends more on the biasing force of the pivot means 125 than on the pressure applied by the user's hand 120.

[0008] Accordingly, the user may still make cuts, experience razor burn, or be unable to shave with the desired level of control during shaving.

[0009] A further problem with pivot head razors, such as razor 100, is that they include many individual parts, which results in complex assembly and generally higher manufacturing costs.

[0010] Thus, it is clear that there is a need for an improved razor and razor handle.

[0011] When reference is made in this specification to prior art publications, it should be clearly understood that such reference does not constitute an admission that the publication forms part of the common general knowledge in the art in Australia or any other country. SUMMARY OF THE INVENTION

[0012] The present invention relates to a razor and razor handle assembly that can at least partially overcome at least one of the above disadvantages or provide useful or commercial alternatives to consumers.

[0013] In view of the above, in one form, the present invention broadly pertains to a razor that includes a substantially spherical handle to which a razor head having one or more blades is attached. The substantially spherical handle has a diameter approximately the same as the width of the razor head and is disposed near the razor head such that the distance between the razor head and the handle is less than or equal to half the width of the razor head. The razor is sized and shaped such that it can be held in a first and a second configuration. In the first configuration, the spherical handle is held in the palm of the user's hand such that the fingertips of the hand can apply direct pressure to the razor head. In the second configuration, the spherical handle is held between the fingertips of the user's thumb and the other fingers such that the razor can rotate about at least two axes by the relative movement of the user's thumb and the other fingers.

[0014] The handle of the razor is ergonomic, which is advantageous in providing better control of the razor and the ability to rotate and pivot the razor head. As a result, shaving quality is improved and the likelihood of cuts and razor burn is reduced.

[0015] The configuration of the razor allows it to be held in at least two different forms. When holding the handle in the palm of the hand, the fingers of that hand may extend across the handle such that the fingertips of those fingers contact and can apply pressure to the back (rear) of the razor head, enabling precise control of the pressure of the razor against the skin. When the spherical handle is held between the fingertips, rotation of the spherical handle about various axes can be used to provide controlled movement to the razor head.

[0016] A handle that is not close to the razor head cannot provide such controlled movement because the razor head is too far from the head to allow such fingertip control. Using a long handle can magnify small movements of the spherical handle, resulting in reduced control of the razor head.

[0017] The expression "width of the razor head" refers to the width from one end of the head to the other end of the head and corresponds to the cutting width of the razor head.

[0018] The expression "fingertip" refers to the inner side of the distal phalanx (i.e., the joint at the most distal part of the hand) that extends from one side of the nail to the other side of the nail and generally means the part of the finger that is used to take fingerprints.

[0019] The razor head may include a substantially flat rear support surface adapted such that the fingertip can apply pressure directly to the rear of the razor head. The rear support surface may include a fingertip control portion. The fingertip control portion may include a flat pad. The razor may be configured to hold the handle with one or more other fingers while allowing one or more fingers to use the fingertip control portion.

[0020] In a second configuration, the handle may be adapted such that the thumb and the other fingers contact the opposite side of the handle.

[0021] The rear support surface may include one or more openings, grooves, ribs, protrusions, or depressions that assist in preventing the fingertip from slipping on the rear support surface.

[0022] The rear support surface may include one or more openings that are configured to allow water flow through the razor head to assist in cleaning the razor head.

[0023] The opening may form an elongated groove in the rear support surface.

[0024] The razor head may have a wedge-shaped cross-section such that the flat rear support surface has an angle with respect to the cutting surface of the razor head.

[0025] The attachment portion may extend outward from the handle to connect the razor head to the handle.

[0026] The attachment portion may include an arm.

[0027] The attachment portion may be at least partially flexible. The attachment portion may include one or more arms that couple the razor head to the handle. The one or more arms may be flexible.

[0028] The attachment portion may extend outwardly from the handle in a direction orthogonal to the surface of the handle.

[0029] The razor head may be removably attached to the handle by the attachment portion.

[0030] The razor head may be attached laterally to the attachment portion at an angle such that the leading edge of the razor is closer to the handle than the trailing edge. The razor head may include an elongated axis orthogonal to the axis of the razor head. The razor head may be angled by rotating about the elongated axis.

[0031] The handle may be separable to provide access to the interior of the handle.

[0032] The handle may include a shaving brush inside the handle.

[0033] The handle may include a base portion and a lid portion.

[0034] The lid portion may function as a brush.

[0035] The handle may include an upper hemispherical portion and a lower hemispherical portion.

[0036] The razor may include one or more magnets configured to maintain the upper hemispherical portion and the lower hemispherical portion in a coupled configuration.

[0037] The razor head may be removable. The razor head may be configured to be stored within the handle.

[0038] The razor head may include a connection portion having a substantially uniform cross-section and being received in a corresponding opening of the razor handle. The connection portion may have a directionality. The connection portion may have a Z-shaped cross-section.

[0039] At least two axes include at least two of roll, yaw, and pitch, or combinations thereof.

[0040] The razor head may comprise a plurality of blades. The blades may include parallel cutting edges. The razor head may comprise a protective edge configured to provide protection between the blade and the skin.

[0041] The handle may be at least about 3 cm (or about 1 and 1 / 4 inches) in diameter and less than about 5 cm (or about 2 inches) in diameter.

[0042] The razor head may be less than about 3 cm (or about 1 and 1 / 4 inches, or about 1 inch) from a sphere.

[0043] Preferably, the razor head is less than about 5 cm (or about 2 inches) from a sphere. The razor head may be less than about 3 cm or 2 cm (or about 1 inch or about 3 / 4 inch) from a sphere.

[0044] The width of the razor head may be about 4 cm (or about 1.5 inches).

[0045] The handle may include a gripping portion. The handle may include a gripping surface.

[0046] The handle may include, for example, a surface for printing advertisements and brands. The handle may include, for example, a surface on which an advertisement or brand is printed.

[0047] The head may include a replaceable cartridge. The razor may be configured to receive two or more types of disposable cartridges. Thus, the razor may be multi-fit.

[0048] In another form, the present invention broadly pertains to a razor handle assembly configured to receive a razor head, the razor handle assembly including a substantially spherical handle, the substantially spherical handle having a diameter approximately the same as the width of the razor head and being disposed near the razor head such that when attached, the distance between the razor head and the handle is less than or equal to half the width of the razor head, the razor being of a size and shape such that it can have the razor in a first and a second configuration, the spherical handle being held in the palm of the user's hand in the first configuration such that the fingertips of the hand can apply direct pressure to the razor head, and the spherical handle being held between the user's thumb and the other fingertips in the second configuration such that the razor can rotate about at least two axes by the relative movement between the user's thumb and the other fingers.

[0049] The razor may be provided by attaching the razor head to the razor handle assembly.

[0050] In another form, the present invention broadly pertains to a razor including a substantially spherical handle to which a razor head including one or more blades is attached, the substantially spherical handle having a diameter approximately the same as the width of the razor head and being disposed near the razor head such that the distance between the razor head and the handle is less than or equal to half the width of the razor head, the razor including a substantially flat rear support surface and being adapted such that when the spherical handle is held in the palm of the user's hand, the fingertips can apply direct pressure to the rear of the razor head.

[0051] Any of the features described herein can be combined in any combination with any one or more of the other features described herein within the scope of the present invention.

[0052] Any reference to prior art herein does not constitute an admission or in any way suggest that the prior art forms part of the common general knowledge, and should not be so regarded.

[0053] Various embodiments of the present invention will be described with reference to the following drawings.

Brief Description of the Drawings

[0054]

Figure 1

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Figure 5b

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Mode for Carrying Out the Invention

[0055] Preferred features, embodiments, and variations of the present invention can be understood from the following mode for carrying out the invention, which provides sufficient information for those skilled in the art to practice the present invention. The mode for carrying out the invention should not be considered as limiting the scope of the foregoing summary of the invention in any way.

[0056] FIG. 2 shows a front upper perspective view of a razor 200 according to an embodiment of the present invention. FIG. 3 shows a rear upper perspective view of the razor 200, and FIG. 4 shows a lower perspective view of the razor 200. The razor 200 includes a spherical handle 205, and a razor head 210 is attached to the handle 205.

[0057] The razor 200 is advantageously configured to provide better control, including the ability to ergonomically control the razor head with the fingertips and the ability to rotate and pivot the razor 200.

[0058] The razor head 210 includes an attachment portion 215 that extends outwardly from the spherical handle 205 in a direction orthogonal to the surface of the handle 205. The blade holder 220 is coupled to the attachment portion 215 by a plurality of flexible arms 225 such that when pressure is applied to the razor head 210, the blade holder 220 can bend with respect to the attachment portion 215 and thus with respect to the handle 205.

[0059] The razor head 210, and in particular the blade holder 220, comprises a plurality of blades 230 configured to provide a parallel cutting edge for shaving. The head 210 also functions as a guide and a protective edge between the blade and the skin, preventing or reducing the possibility of accidental cuts while the blade 230 is in close contact with the skin. Thus, the razor 200 functions as a safety razor.

[0060] The blades 230 are arranged such that the cutting edge intersects the direction in which the attachment portion 215 extends outwardly. Thus, each blade 230 is configured to shave continuously and may be configured to be at various heights from the skin during use to provide a more comfortable shave.

[0061] The razor head 210 has a drainage opening 235 at the rear thereof so that its blades 230 can be cleaned and so that hair can flow out from between the blades. This is particularly important when a plurality of blades 230 are provided in close proximity, as the accumulation of hair and / or dirt may occur and interfere with the proper functioning of the razor 200.

[0062] The scissors 200 are sized and shaped such that (1) (as shown in FIG. 5a) the scissor handle 205 can be supported by the palm of the user's hand while the fingertips of the user's hand apply pressure directly to the scissor head, and (2) (as shown in FIG. 5b) the scissor handle 205 is held between the user's thumb and the fingertips of the other fingers, and when held in this way, the scissors can rotate about at least two axes by the relative movement of the user's thumb and the other fingers.

[0063] Referring now to FIG. 5a, the scissors 200 are held such that the scissor handle 205 is indicated by the palm. The spherical handle 205 is particularly suitable for such a purpose due to its size, and the spherical shape is comfortable as it has no sharp edges.

[0064] Depending on the size of the user's hand, the scissor handle 205 may be supported by the palm by the thumb and little finger, and in fact, it may not (or not at all) contact most (or all) of the skin of the palm. In other words, the scissor head can be supported by the palm by the thumb and little finger near the skin of the palm without actually touching the palm.

[0065] The user's index finger and middle finger extend across the handle 205 so that the fingertips hit the back (rear) side of the scissor head 210 and apply pressure there to accurately control the pressure of the scissors against the skin.

[0066] The fingertips include a part of the densest region of the body's nerve endings, and thus there is rich tactile feedback. Thus, rich sensory information is provided from the direct (i.e., near the blade) interaction between the fingertips and the scissor head 210 of the fingertips, which enables better control of the pressure, which is particularly important around sensitive parts such as the lips. This is clearly different from prior art scissors where the scissor head is controlled by some type of handle by the fingertips. In the case of the prior art, the pressure of the scissors against the skin is more difficult to control and more difficult to perceive.

[0067] Furthermore, when the fingertips are placed directly on the back (rear part) of the razor head, the hand and brain can function instinctively, intuitively, and naturally. This is not only because there is a gap between the razor blade that magnifies small movements and the finger, but also because there is a difference in the angle between the finger and the razor head in the case of a stick razor that requires clearly conscious and practiced movements, rather than the learning (and unnatural) movements.

[0068] When the user's finger is placed on the back (rear part) of the razor head 210, the blade 230 is arranged such that the cutting edge of the blade is lateral to the user's finger and in a direction where the blade cuts with the downward movement and pressure from the finger. Such a configuration enables the blade 230 to function as an extension of the user's fingertip. Thereby, the sensation of the fingertip can be utilized as if it were in almost direct contact with the skin.

[0069] Although two fingers 505 are shown, those skilled in the art will readily understand that a similar configuration can be used when applying pressure to the razor head with only one finger (e.g., the index finger) or when multiple (e.g., three or four) fingers apply pressure to the razor head.

[0070] Referring now to FIG. 5b, the handle 205 is adapted to be held between the index finger and the middle finger 505 on one side and the user's thumb 510 on the other side such that the user's fingertip hits the surface of the handle 205. The thumb 510 and the finger 505 hit the opposite side of the handle 205, whereby the relative movement between the finger 505 and the thumb 510 can be converted into a rotational movement of the handle in any direction. Accordingly, the razor 200 can rotate about multiple axes.

[0071] As an example for illustration, the finger 505 may move to one side relative to the thumb 510 to rotate the razor 200 (and thus the razor head 210) about the axis of the mounting portion 215. Similarly, the finger 505 may move back and forth relative to the thumb 510 to rotate the razor 200 such that the razor head 210 pivots up and down.

[0072] As described above, the fingertips are rich in tactile feedback. Therefore, due to the spherical handle 205 and its proximity to the clipper head 210 of the handle 205, very precise control and operation of the clipper head 210 (and thus the blade 230) against the skin become possible. Since the handle 205 is disposed near the clipper head 210, more precise control is facilitated, and accuracy and feedback are not lost by an elongated handle or the like.

[0073] In many cases, the clipper is held by the body 205 such that the cutting edge of the blade 230 is lateral to the user's finger. Such a configuration can enable shaving by the movement of the user's hand, wrist and / or arm, and / or by the relative movement (e.g., moving the finger 505 forward with respect to the thumb 510) of the finger 505 and the thumb 510 as the clipper head moves along the skin in the cutting direction.

[0074] However, the handle 205 is spherical, and since a sphere has the same shape regardless of rotation, the blade can be oriented in another (i.e., any) direction and the handle 205 can be placed between the finger 505 and the thumb 510 and operated in the same manner. As an example for illustration, the handle 205 may be held between the finger 505 and the thumb 510 such that a comfortable movement (e.g., the forward and backward movement of the finger 505 with respect to the thumb 510) corresponds to the desired movement of the clipper head 210 (e.g., rotation of the clipper head 210 or movement of the clipper head along a curved path).

[0075] For example, as shown in FIG. 5b, when holding the handle 205, the clipper can be used to provide rotation in multiple degrees of freedom by simple movement of the fingertips. Specifically, the clipper can be rotated about one axis by the forward and backward movement of the other finger with respect to the thumb, and can be rotated about another axis by the left and right movement of the other finger with respect to the thumb.

[0076] Such degrees of freedom of movement are much greater than those of a stick clipper such as that shown in FIG. 1.

[0077] Accordingly, the razor 200 can be used in a plurality of ways including the ways shown in FIGS. 5a and 5b. During use, the user may switch between different types, for example, between one configuration when shaving a certain part of the body and another configuration when shaving another part.

[0078] In addition to the fine movements provided by the fingers 505 and the thumb 510 as described above, it will be readily understood by those skilled in the art that the user's wrist and arm are also manipulated, particularly with respect to large (e.g., from one side of the face to the other) movements. In such cases, the fingers 505 and the thumb 510 may mainly change the roll, yaw, and / or pitch of the blade 230, while the arm and wrist may mainly provide up and down, left and right, and / or in and out movements.

[0079] The spherical handle 205 is disposed near the head 210 with a width approximately the same as that of the head 210, i.e., about 4 cm wide (left and right). Accordingly, the razor 200 is very compact and easy to store and carry.

[0080] The handle 205 may be formed of any suitable material including ABS resin and may include a coating on the handle 205 to provide additional gripping force at the fingertips during use. The handle is preferably corrosion resistant. The handle 205 may be water resistant to prevent water from entering inside the handle 205.

[0081] In some embodiments, an advertisement, brand, or other text and / or image may be printed on the handle 205. This is particularly advantageous in a marketing context as it allows the razor 200 to be sold or offered while significantly exposing the brand for the manufacturer or a third party of the razor 200.

[0082] As an example for illustration, the company may provide promotional razors through sports clubs or other groups, or through marketing or promotional events. Company details may be provided on the razor handle, making it possible for users to easily obtain replacement cartridges, blades, or an entirely new razor.

[0083] Similarly, the handle may be provided with brands of other businesses such as sports teams, characters, movies, etc., enabling users to select or design a razor that suits their personality or the preferences of the purchaser.

[0084] Examples of other razors with printed marks are described below.

[0085] In some embodiments, the handle portion may be coated with a reflective or mirror coating. Specifically, the surface of the handle facing the razor head may be coated so that it can be used as a mirror during or otherwise shaving, reducing the need for a bathroom mirror.

[0086] The razor may include a suction cup or other holding member(s) attached to the handle so that the razor can be attached to a mirror, tile, glass, etc. This is particularly useful in that when not in use, the razor can be stored in a convenient location (e.g., the shower wall) so that shelves, drawers, or similar places do not overflow with items.

[0087] The handle 205 may be configured to float in water (particularly useful in a bathtub) and may be soft enough to bounce (without breaking) when dropped. Similarly, the razor may be weighted to balance at its base (i.e., with the blade on top).

[0088] In some embodiments, the handle 205 may be able to open or may be utilized in other ways (e.g., for storing shaving cream or other items). An example of one such razor is described below.

[0089] FIG. 6 is a front upper perspective view of a razor 600 according to another embodiment of the present invention. The razor 600 is similar to the razor 200, but the handle 605 is separable to provide access to its interior.

[0090] Specifically, the handle 605 includes a base portion 605a and a lid portion 605b, and the lid portion 605b can be releasably engaged with the base portion 605a using a press-fit configuration, screw engagement, or any other suitable means.

[0091] FIG. 7 shows a side view of the lid portion 605b of the handle 605 according to an embodiment of the present invention. The lid portion 605b includes a body 610, and a plurality of bristles 615 extend from the body 610. Accordingly, the lid portion 605b also functions as a shaving brush.

[0092] The body 610 is hemispherical in shape, and the bristles 615 extend downward from its lower surface. In some embodiments (not shown), the body 610 may be provided with a tank for storing products such as shaving cream.

[0093] The base portion 605a is substantially hollow in shape, and thus, when the lid portion 605b is attached to the base portion 605a, the bristles 615 can be received in the base portion 605a without being compressed or deformed.

[0094] Referring back to FIG. 6 here, the lid portion 605b includes a printed mark 620, and the mark 620 may be in the form of one or more logos, images, words, brands, decorative patterns, etc., or combinations thereof. As an example for illustration, the razor 600 may include the logo of a favorite sports team and may be sold or provided as a souvenir.

[0095] Similarly, the mark 620 may include a website link, and the website link may be used to purchase a replacement blade or head for the razor 600. In one such scenario, a subsidy may be provided for (or offered for free) the razor 600 in consideration of raising funds from the sale of the blade or razor head. This makes it easier for the manufacturer of the razor 600 to introduce the razor to the market and can create a demand for replacement heads.

[0096] In an alternative embodiment (not shown), the base portion 605a and the lid portion 605b may provide a container for storing replacement blades or cartridges. Specifically, the head 210 (or a part thereof) may be replaceable, and the container may include one or more replacement heads. Similarly, the blade 230 may be replaceable, and the container may include replacement blades.

[0097] In one embodiment, the razor 600 is configured to accept a plurality of different types of disposable cartridges. In such a case, the razor 600 may be multi-fit in that it can use a plurality of cartridges of different types.

[0098] In another embodiment, the razor 600 may be adapted such that when not in use, the handle 605 can receive and store the razor head 210. In such a case, the razor head may be removed from the razor for storage in the handle, and thus, in such a configuration, the razor 600 is substantially spherical. This is particularly useful from the perspective of carrying and storage as the razor is less likely to catch on clothing or other objects.

[0099] FIG. 8 shows a side view of a razor 800 according to an embodiment of the present invention. The razor 800 is similar to the razors 200 and 600 but is configured to use a disposable cartridge.

[0100] The razor 800 includes a handle 205 and a mounting portion 805 that is very similar to the mounting portion 215, but has an engaging portion 815 that enables a disposable cartridge 810 to be removably attached. Specifically, the mounting portion 805 that extends outward from the handle 205 includes an engaging portion 815 at the distal end of the mounting portion 805, and the engaging portion 815 releasably engages with a corresponding engaging portion of the cartridge 810.

[0101] The engaging portion 815 may include one or more press-fit members, locking members, or retainers configured to engage with a corresponding member of the cartridge.

[0102] In one embodiment, the mounting portion 805 releasably engages with the handle 205, and the handle 205 enables the mounting portion 805 to be removed and replaced. This is particularly advantageous in that it allows different types of razor heads to be used with the razor 800.

[0103] Although the handle 205 was disclosed as being spherical in the above embodiment, those skilled in the art will understand that other similar stub (i.e., short and thick) shapes may be used. As an example for illustration, the handle may be in the shape of a prolate spheroid. Similarly, the handle may be substantially convex. Alternatively, or in addition, the handle may be axially symmetric.

[0104] FIG. 9 shows a side view of a razor 900 according to an embodiment of the present invention. The razor 900 is similar to the razors 200, 600, and 800.

[0105] The razor includes a razor head 905 having a plurality of blades 910 on the front (cutting) side, and the head includes a fingertip control portion 915 on the rear (back) side of the razor head 905. The razor head 905 is integrally formed with a mounting portion 920, and the mounting portion 920 is configured to space the razor head 905 from a spherical handle 925.

[0106] The attachment portion 920 is releasably coupled to the spherical handle 925 by the head portion 930, and the head portion 930 is shaped such that the spherical handle 925 smoothly (i.e., without sharp edges) flows toward the attachment portion 920.

[0107] The razor 900 includes a locking member 935, and the locking member 935 enables the attachment portion 920 to be released from the handle 925 by releasably engaging the attachment portion 920.

[0108] The attachment portion 920 extends outward from the handle 920, and the razor head is attached laterally to the attachment portion 920 such that it has an angle with respect to one side. The razor head 905 is wedge-shaped such that the substantially flat fingertip control portion 915 has an angle with respect to the surface of the blade 910.

[0109] The handle 925 includes an upper portion 925a and a lower portion 925b, which are releasably engaged with each other such that the handle 925 can be opened. Specifically, the upper portion 925a and the lower portion 925b can be engaged with each other, and by pressing the tab portion 940, the engagement between the upper portion 925a and the lower portion 925b can be released.

[0110] Finally, the lower portion 925b has a flat bottom surface 945, and the bottom surface 945 enables the razor to stand on a support surface such as a bench.

[0111] FIG. 10 shows a front view of a razor 1000 according to an embodiment of the present invention. The razor 1000 is similar to the razor 200 but includes a razor spacer 1005 configured to space the blade 230 from the user's skin. The spacer 1010 enables shaving short, such as a length (<1.5 mm) corresponding to the amount the user grows a chin beard in 1 to 4 days.

[0112] Figure 11 shows an enlarged view of a portion of the razor 1000 showing the razor spacer 1005. Specifically, the razor spacer 1005 includes a plurality of teeth 1010 that extend downwardly from the support 1015. The teeth 1010 extend downwardly beyond the edge of the blade 230 and function to space the user's skin from the blade 230.

[0113] When the razor 1000 is drawn across the user's skin, the teeth 1010 function much like a comb, allowing the blade 230 to cut the jaw whiskers to a desired length defined by the spacer 1005 as the razor 1000 moves through the jaw whiskers.

[0114] The spacer 1005 may be removable, allowing the razor 1000 to function like the razor 200. In such a case, the support 1015 may be adapted to clip onto the head of the razor using one or more retaining members. Similarly, various spacers 1005 having different lengths of teeth 1010 may be provided to allow the user to select a spacer according to a desired length.

[0115] In an alternative embodiment (not shown), the spacer 1005 may include a mechanism for adjusting the length of the teeth. This may be accomplished using a mechanism such as a dial that moves the support 1015 (and thus the teeth) up and down relative to the head (and thus the blade).

[0116] The spacer 1005 may be configured to be adaptable to a plurality of heads, whereby the spacer may function with various wet razors, including prior art wet razors. Thus, the spacer 1005 may be incorporated into existing razors to provide such new functionality to existing razors.

[0117] The spacer 1005 is particularly useful in that it does not require an electric clipper and allows a length (generally very short) to the jaw whiskers to be maintained while wet shaving.

[0118] FIG. 12 shows a top view of a razor 1200 according to an embodiment of the present invention. FIG. 13 shows a side view of the razor 1200. The razor 1200 is similar to the razor 800, and the fingertip control portion is configured to also control the turning of the razor head.

[0119] The razor 1200 includes a handle 1205 similar to the handle 205. From the handle 1205, an arm 1210 extends outward, and a razor head assembly 1215 is at the end of the arm. The arm 1210 and the head assembly 1215 include a pivot mechanism 1220 that can turn the razor head assembly 1215 relative to the arm 1210, and thus relative to the handle 1205.

[0120] The razor head assembly 1215 includes a substantially flat blade surface 1225, and one or more razor blades are attached to the blade surface 1225. The surface 1225 is configured to receive a razor cartridge including a plurality of blades, and the blades may be replaceable as needed.

[0121] The control surface 1230 of the razor head bends upward and inward to cover the portion of the arm 1210 from the upper edge of the blade surface 1225, and includes a fingertip pad inside thereof, enabling the user to control the turning of the razor head assembly 1215 (and thus any blade attached thereto) by applying pressure to the fingertip pad. Specifically, the user may use his or her fingertip to apply pressure to the control surface 1230 inside the head 1215 to turn the head 1215. The razor head assembly 1215 may be biased by a spring or the like so that the head returns to the default position when pressure is no longer applied to the control surface 1230.

[0122] Finally, the handle 1205 is spherical, but includes a flat side 1235 on the opposite side of the handle 1205. The arm 1210 extends toward the flat side 1235, enabling the handle to function as a self-standing stand for the razor 1200 on a surface such as a tabletop.

[0123] In use, the user may hold the razor 1200 in a similar manner to the razor 200 shown in FIG. 5a, but the fingertips are placed on the control surface 1230, and the relative movement of the fingertips with respect to the rest of the hand (holding the handle) changes the angle of the razor head assembly 1215 in addition to controlling the pressure on the skin.

[0124] FIG. 14 shows a side view of a razor 1400 according to an embodiment of the present invention. The razor 1400 is similar to the razor 1200 but has a spring-loaded length-adjustable arm.

[0125] The razor 1400 includes a handle 1405 similar to the handle 1205. From the handle 1405, an arm 1410 extends outward and has a razor head assembly 1415 at the end of the arm. The arm 1410 and the head assembly 1415 include a pivot mechanism 1420 that allows the razor head assembly 1415 to pivot with respect to the arm 1410 and thus with respect to the handle 1405.

[0126] The arm 1410 is received within a channel 1425 of the handle 1405, and a spring 1430 biases the arm 1410 outward. Thus, when pressure is applied and released from the head 1415, the arm can move inward and outward, thereby damping the force applied to the razor head.

[0127] FIG. 15 shows a side view of a razor 1500 according to an embodiment of the present invention. The razor 1500 is similar to the razor 1400 but has a notched arm that provides a plurality of fixed length settings.

[0128] The razor 1500 includes a handle 1405. From the handle 1405, an arm 1510 extends outward, and at the end of the arm, there is a razor head assembly 1415. The arm 1510 and the head assembly 1415 are provided with a pivot mechanism 1420 that can pivot the razor head assembly 1415 relative to the arm 1510, and thus relative to the handle 1305, in the same manner as the razor 1400.

[0129] The arm 1510 is received within a channel 1525 of the handle 1405. The handle 1405 includes a plurality of ribs 1530 disposed along the length of the channel. The ribs engage corresponding notches of the arm 1510. Thus, the notches and the ribs 1530 enable the arm 1510 to extend outward from the handle 1405 at a predetermined position.

[0130] FIG. 16 shows a side view of a razor 1600 according to an embodiment of the present invention. The razor 1600 is similar to the above-described razor, but includes a spherical magnetic pivot assembly instead of an arm and a pivot.

[0131] The razor 1600 includes a handle 1605. The handle 1605 defines a cup portion 1610 for receiving a corresponding ball portion 1615 of a razor head assembly that includes a razor head 1415 attached to a ball portion 1615.

[0132] The cup portion 1610 and the ball portion 1615 are each magnetized and have opposite polarities such that the ball portion 1615 is attracted to and connected to the cup portion 1610. The ball portion 1615 is spherical, and the cup portion 1610 has a corresponding shape. This enables the ball portion 1615 and the cup portion 1610 to provide a pivot configuration for a head that pivots in multiple directions.

[0133] The magnetic portions of the cup portion 1610 and the ball portion 1615 may be configured to bias the razor head 1415 to a specific position. As a result, the razor head may be configured to automatically return to the default position after rotation.

[0134] The ball portion 1615 is shown as being fixed to the head 1415, but the ball portion 1615 may be releasably engaged with the head 1415 so that the head can be replaced without replacing the ball portion 1615. Such a configuration is cost-effective and environmentally friendly.

[0135] The ball portion 1615 is shown as being fixed to the head and the cup portion 1610 is shown as being fixed to the handle, but those skilled in the art will readily understand that the configuration may be reversed such that the ball portion is fixed to the handle and the cup portion is fixed to the razor head. Similarly, in some embodiments, only one of the cup portion 1610 and the ball portion 1615 needs to be magnetized, and the other may be a material containing iron (e.g., iron).

[0136] The above-described magnetic pivot configuration may also be used at the end of a conventional razor handle to provide a convenient means for pivoting the head so that it can be easily separated for cleaning.

[0137] FIG. 17 shows a side view of a razor 1700 according to an embodiment of the present invention. The razor 1700 is similar to the razor 1600, but only the razor head is configured to pivot about one axis.

[0138] The razor 1700 includes a handle 1705, and the handle 1705 includes a cup portion 1710 for receiving a corresponding ball portion 1715 of a razor head assembly including the razor head 1415 attached to the ball portion 1715.

[0139] The cup portion 1710 and the ball portion 1715 are each magnetized and have opposite polarities. The ball portion 1715 is spherical like the razor 1600, but the lock pin 1720 that engages with the corresponding channel of the ball portion 1715 allows the ball portion 1715, and thus the head 1415, to pivot about only one axis.

[0140] Such a configuration may be particularly suitable when lateral pivoting of the razor head is not desired.

[0141] FIG. 18 shows a schematic view of a shaving system 1800 according to an embodiment of the present invention. The shaving system 1800 includes a razor 1805 (shown in side view) and a portable computing device 1810. FIG. 19 shows a top view of the razor 1805.

[0142] The razor 1805 includes a camera 1815 attached to the handle portion 1820 of the razor 1805. The camera 1815 is configured to capture video of the surface being shaved and transmit that video to the portable computing device 1810 for display in real time or near real time. Specifically, the razor 1805 includes circuitry 1825 coupled to the camera 1815 for receiving image data from the camera and wirelessly transmitting that image data to the portable computing device.

[0143] The shaving system 1800 is particularly suitable for shaving difficult-to-see areas such as the hair on the back of a person's head, pubic hair, or any other area that is difficult to see. In such cases, the user can view that area on the portable computing device 1810, which can be placed in a convenient location.

[0144] In some embodiments, the portable computing device may comprise software configured to assist the user during shaving. By way of example for illustration, the software may be used to provide a guideline, which is particularly useful when shaping the hair. In some embodiments, the guidance may be provided using augmented reality.

[0145] FIG. 20 shows a shaving system 2000 according to an embodiment of the present invention. The shaving system 2000 includes a razor 2005 similar to the above-described razor and a bottle 2010, and the bottle 2010 engages with the handle 2015 of the razor 2005.

[0146] The handle 2005 is spherical as in the above-described razor, but includes a threaded opening 2020 for receiving the screw head of the bottle 2010. With such a configuration, when not in use, the bottle can be attached to the razor 2005 and removed from the razor 2005 to provide access to the contents of the bottle.

[0147] The spherical handle may include, for example, a mechanism that can house the razor head within the handle for storage. By way of example for illustration, the handle may include a rotating mechanism that houses (or pulls out from the handle by rotating in the opposite direction) the razor head within the handle by rotating the handle. In the storage configuration, the razor may be substantially spherical. Alternatively, the head may simply be removed and stored.

[0148] FIG. 21 shows a rear perspective view of a razor 2100 according to an embodiment of the present invention. The razor 2100 is similar to the above-described razor and includes a spherical handle 2105 for attaching a razor head 2110. FIG. 22 shows a side view.

[0149] The razor 2100 can have a razor with the first and second configurations, similar to the above-described razor, in a size and shape that allows the spherical handle to be held in the palm of the user's hand so that the fingertips can directly apply pressure to the razor head in the first configuration (substantially as shown in FIG. 5a), and in the second configuration, the spherical handle is held between the fingertips of the user's thumb and other fingers so that the razor can rotate about at least two axes by the relative movement of the user's thumb and other fingers (substantially as shown in FIG. 5b).

[0150] The razor head 2110 has a cutting surface 2115 (i.e., a blade) on one side (front) and a fingertip control portion 2120 on the opposite (rear, back) side. The fingertip control portion 2120 is defined at the rear of the razor head 2110 and includes a plurality of elongated grooves (openings) 2120a that function to provide a grip for the fingertips and at the same time assist in cleaning the blade.

[0151] The razor head 2110 includes a mounting portion 2125 that, similar to the mounting portion 920, couples the razor head 2110 to the handle 2105. During use, the mounting portion 2125 extends outward from the handle 2105. The razor head 2110 extends laterally with respect to the mounting portion 2125 at the end of the mounting portion 2125 and has an angle with respect to one side. The razor head 2110 has a wedge-shaped cross-section such that the substantially flat fingertip control portion 2120 has an angle with respect to the surface of the blade.

[0152] The handle 2105 includes an upper portion 2105a and a lower portion 2105b that are releasably engaged with each other so that the handle 2105 can be opened. The upper portion 2105a and the lower portion 2105b each include a magnet that allows these portions to be coupled (by magnetic force) and held together. This will be described in detail below.

[0153] Figure 23 shows a rear perspective view of the razor head 2110. The attachment portion 2125 includes a Z-shaped connection portion 2130, which has a substantially uniform cross-section and is received in a corresponding opening of the razor handle 2105. The Z-shaped connection portion simplifies the attachment, prevents the head 2110 from rotating relative to the handle 2105, and ensures that the head is attached in the correct direction. This is particularly important when there is information or printing on the handle, or when there is a gripping portion on the handle.

[0154] There is a retaining recess near the end of the Z-shaped connection portion 2130, and the retaining recess engages with a corresponding protrusion of the handle 2105 to hold the razor head in the handle in a press-fit configuration.

[0155] Returning now to FIG. 24, the lower portion 2105b is hemispherical and includes an insert 2140, which fits snugly inside the lower portion 2105b and defines a receptacle 2145 for receiving the razor head 2110. The receptacle 2145 is shaped to correspond to the razor head 2110 such that the razor head 2110, specifically the surface portion of the razor head, fits snugly into the receptacle with the blade facing downward.

[0156] The lower portion 2105b has a magnet below the receptacle 2145 for holding the razor head in the receptacle 2145, and the upper and lower portions have corresponding magnets that allow separation if necessary while keeping the upper portion 2105a and the lower portion 2105b joined.

[0157] The receptacle 2145 is shown as being substantially rectangular, but the receptacle may be shaped to exactly correspond to the shape of the razor head 2110 (or a part thereof) such that the razor head 2110 fits snugly into the receptacle and cannot move or become loose under any circumstances.

[0158] Figure 25 shows an exploded view of the razor 2100 according to an embodiment of the present invention.

[0159] As can be shown in FIG. 25, the razor head is coupled to the spherical handle portion 2105a by a head portion 2505 that is coupled to the spherical handle portion 2105a by a retainer 2510. Similarly, the lower spherical handle portion has a base member 2515 that forms a flat base 2150 of the lower handle portion 2105b when attached.

[0160] The first and second upper cylindrical magnets 2520 are held below the upper spherical handle portion 2105a and correspond to the first and second lower cylindrical magnets 2525 held above the lower spherical handle portion 2105b.

[0161] The upper 2105a and lower 2105b engage with each other to form the spherical handle 2105. Although not shown, the upper and lower portions may have engagement members that assist the upper 2105a and lower 2105b in engaging with each other. As an example for illustration, the engagement members may include a guide that guides the upper 2105a and lower 2105b in a specific manner, such as rotation, and the magnets may assist in maintaining the guide in a predetermined position.

[0162] As described above, the razor head 2110 is held using magnets, and the first and second cylindrical magnets 2530 are provided on the base of the retainer 2140 for this purpose.

[0163] FIG. 26 shows a rear perspective view of a razor head 2110a according to another embodiment of the present invention. FIG. 27 shows a rear view of the razor head 2110a.

[0164] The razor head 2110a is similar to the razor head 2110 but includes a magnetized Z-shaped connection portion 2130a with a holding magnet 2605 at the end. The holding magnet 2605 engages with the corresponding magnet of the handle 2105 to hold the head 2110a to the handle 2105.

[0165] One of ordinary skill in the art will readily understand that any of the expressions "magnet," "pair of magnets," or "magnet with an iron counterpart" are interchangeable. As an example for illustration, the pair of magnets described for the clipper head 2110a and the body can be replaced by one magnet of the head 2110a and the iron material of the body 2105, or the iron material of the head 2110a and the magnet of the body 2105.

[0166] The spherical handle may comprise a rechargeable battery that powers a light, a clock, a media player (e.g., for music playback), or a computer processor. As an example for illustration, the handle may comprise a processor that includes one or more sensors configured to determine the usage amount of the clipper and recommend blade replacement based thereon. The handle may comprise a display for displaying such information, or may communicate with a smartphone or other device, e.g., via Bluetooth.

[0167] In one such embodiment, the handle may comprise a recharge port at the base of the handle such that the battery can be recharged without removing the battery from the handle. The recharge port may include a physical port (e.g., a USB type port) or a wireless port for wireless charging. In the latter case, the battery may be charged by electromagnetic induction charging from a powered recharge station.

[0168] The handle is spherical. However, one of ordinary skill in the art will readily understand that other substantially spherical shapes, including spherical polyhedra and other shapes like spheres, may also be used. Generally, the handle may be approximately the same width as its height to allow for control about multiple axes. The width of the handle may be approximately the same height as its length.

[0169] The spherical handle described above is ergonomic and provides a comfortable grip for the user, whether held by a fingertip or the palm of the hand.

[0170] With the above-mentioned razor and razor handle, it is advantageous for the user to be able to better control the razor and obtain the ability to rotate and pivot the razor head in an ergonomic manner. The user's fingers are much closer to the blade, improving the interaction between the user's fingers and the blade.

[0171] As a result, the razor and razor handle can provide a closer and more accurate shave and can also reduce the likelihood of accidental cuts and razor burn.

[0172] The spherical handle has a print suitable for the surface on the razor, including advertising / branding of third parties.

[0173] In this specification and the claims (if any), the word "comprising" and its derivatives including "comprises" and "comprise" include each integer recited but do not exclude the inclusion of one or more additional integers.

[0174] Throughout this specification, the phrase "in one embodiment" or "in an embodiment" means that the particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places in this specification are not necessarily all referring to the same embodiment. Further, the particular features, structures, or characteristics may be combined in any suitable manner in one or more combinations.

[0175] In accordance with the rules, the present invention has been described in more or less the language specific to structural or method features. Since the means described herein include preferred forms of carrying out the invention, it is to be understood that the invention is not limited to the specific features shown and described. Accordingly, the invention is claimed in any form or modification within the proper scope of the appended claims (if any) as appropriately interpreted by those skilled in the art.

Claims

1. A razor including a substantially spherical handle to which a razor head having one or more blades is attached, wherein the substantially spherical handle has a diameter substantially corresponding to the width of the razor head and is disposed near the razor head such that a minimum distance between the razor head and the handle is not more than half of the width of the razor head, With the above configuration, the handle of the razor can be held in the first and second configurations, In the first configuration, the spherical handle is held in the palm of the user's hand such that the fingertips of the hand can directly apply pressure to the control surface inside the razor head during shaving, In the second configuration, the spherical handle is held between the user's thumb and other fingertips such that the razor can rotate about at least two axes by the relative movement of the user's thumb and other fingers, The razor head includes a substantially flat rear support surface, The rear support surface is adapted to have the fingertips placed thereon and directly apply pressure to the rear of the razor head, The rear support surface includes one or more openings, The openings are configured to allow water flow to pass through the razor head and assist in cleaning the razor head. A razor.

2. The razor according to claim 1, wherein the opening forms an elongated groove in the rear support surface.

3. The razor according to claim 1, wherein the razor head has a wedge-shaped cross section such that the flat rear support surface has an angle with respect to the cut surface of the razor head.

4. The razor according to claim 1, further comprising an attachment portion extending outward from the handle and connecting the razor head to the handle.

5. The razor according to claim 4, wherein the attachment portion includes an arm.

6. The razor according to claim 4, wherein the attachment portion extends outward from the handle in a direction perpendicular to the surface of the handle.

7. The razor according to claim 4, wherein the razor head is attached laterally to the attachment portion at an angle such that the leading edge of the razor is closer to the handle than the trailing edge.

8. The razor according to claim 1, wherein the handle is separable to provide access to the inside of the handle. A razor comprising a substantially spherical handle to which a razor head having one or more blades is attached, wherein the substantially spherical handle has a diameter substantially corresponding to the width of the razor head and is disposed near the razor head such that a minimum distance between the razor head and the handle is not more than half of the width of the razor head, With the above configuration, the handle of the razor can be held in the first and second configurations, In the first configuration, the spherical handle is held in the palm of the user's hand such that the fingertips of the hand can directly apply pressure to the control surface inside the razor head during shaving, In the second configuration, the spherical handle is held between the user's thumb and other fingertips such that the razor can rotate about at least two axes by relative movement of the user's thumb and other fingers, The handle is separable to provide access to the inside of the handle, The handle includes an upper hemispherical portion and a lower hemispherical portion, The razor includes one or more magnets configured to hold the upper hemispherical portion and the lower hemispherical portion in a joined configuration. A razor comprising a substantially spherical handle to which a razor head having one or more blades is attached, wherein the substantially spherical handle has a diameter substantially corresponding to the width of the razor head and is disposed near the razor head such that a minimum distance between the razor head and the handle is not more than half of the width of the razor head, With the above configuration, the handle of the razor can be held in the first and second configurations, In the first configuration, the spherical handle is held in the palm of the user's hand such that the fingertips of the hand can directly apply pressure to the control surface inside the razor head during shaving, In the second configuration, the spherical handle is held between the user's thumb and other fingertips such that the razor can rotate about at least two axes by relative movement of the user's thumb and other fingers, The handle is separable to provide access to the inside of the handle, The razor head is removable and configured to be stored within the handle, a razor.

11. The razor head is removable, The razor head is a connection portion having a substantially uniform cross-sectional shape, and includes the connection portion that is received in an opening of the razor handle having a corresponding configuration, the razor according to any one of claims 1 to 7.

12. The at least two axes include at least two of roll, yaw, and pitch, or a combination thereof, the razor according to any one of claims 1 to 10.

13. The razor head includes a plurality of blades having parallel cutting edges, the razor according to any one of claims 1 to 10.

14. The razor head is less than 2 cm from the spherical handle, the razor according to any one of claims 1 to 10.

Citation Information

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