Razor handle having ergonomic gripping areas

Information

  • Patent Grant
  • 7975389
  • Patent Number
    7,975,389
  • Date Filed
    Thursday, February 3, 2005
    19 years ago
  • Date Issued
    Tuesday, July 12, 2011
    13 years ago
Abstract
A razor handle made of a rigid core and a layer of compressible elastomeric material. The razor handle includes a head portion, located at the front end of the razor handle, and includes a bearing structure for connection to a razor head. The razor handle also includes a body portion having an upper surface, a lower surface opposite the upper surface, an upper front gripping area that includes a plurality of spaced projections protruding from the upper surface, and a lower front gripping area located opposite the upper front gripping area. The razor handle also includes a plurality of spaced projections protruding from the lower surface. The upper front gripping area is centered on a point located at a distance of at least 3 cm from a front end of the head portion.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a national stage application of International Application No. PCT/EP2005/001648, filed on Feb. 3, 2005, the entire contents of which are incorporated herein by reference.


BACKGROUND OF THE INVENTION

1. Field of the Invention


Embodiments of the present invention relate to a safety razor. More particularly, embodiments of the present invention relate to an ergonomic razor handle provided with gripping areas for enhancing comfort of hand grasping during shaving operations.


2. Description of the Related Art


Numerous razor handles comprising a body portion for hand grasping and a head portion at a front end thereof to which a razor head is mounted via an appropriate bearing structure are known.


Various kinds of razor handles have been proposed in the past for improving hand grasping by means of gripping areas provided on a top surface of the handle.


U.S. Pat. No. 5,027,511 to Miller shows a rectilinear composite razor handle structure having a housing structure with an array of spaced apertures and a compressible resilient insert structure including projection portions that extend through the apertures. One drawback of such a structure is that is does not facilitate certain grasping positions, such as one in which the index finger is applied against the top surface of the handle, in the vicinity of the razor head portion, for because the index finger tends to slip toward the lateral sides of the housing structure, especially under wet and soapy conditions.


U.S. Patent Application Publication No. 2004/0103545 to Dansreau shows a razor handle having an outer layer made from a compressible elastomeric material and formed around an inner rigid core. The outer layer has a top surface provided with projections deemed to enhance the grip of the handle. One drawback of such a razor handle is that it cannot provide sufficient feeling of the actual position of the fingers to the user, because the gripping projections are substantially uniform along the handle.


Although the products corresponding to these patents have found (or may find) a market, it is believed that they fail to allow excellent grasping and comfort while shaving, especially in certain grasping positions.


SUMMARY OF THE INVENTION

It is an object of embodiments of the present invention to provide a razor handle with improved ergonomics, in order to enhance the grasping and comfort qualities of the razor handle while shaving.


The proposed razor handle comprises a head portion provided at a front end thereof, with a bearing structure for connection to a razor head, and an elongated body portion having an upper surface provided with a local upper front gripping area comprising a plurality of spaced projections protruding from the upper surface. The local front gripping area is centered on a point located at a distance of at least 3 cm from the front end of the head portion.


Such a design provides improved gripping and finger rest comfort in certain shaving positions. The index finger of the user is guided by touch feeling to the gripping area, which is located at a distance from the skin to be shaved, ensuring precise and comfortable shaving.


The above and other objects and advantages of embodiments of the present invention will become apparent from the following detailed description of the embodiments of the present invention, considered in conjunction with the accompanying drawings.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 is a front top perspective view of a razor, according to an embodiment of the present invention;



FIG. 2 is an exploded bottom perspective view of the razor of FIG. 1;



FIG. 3 is a side elevational view of the handle of the razor of the preceding Figs.;



FIG. 4 is a top plan view of the razor handle of FIG. 3 from the perspective of arrow IV in FIG. 3;



FIG. 5 is a diagram showing the distribution of the centers of curvature for the edge curve of the top surface of the razor handle for the razor of FIG. 1;



FIG. 6 is a diagram showing the evolution of the radius of curvature for the edge curve of the top surface of the razor handle for the razor of FIG. 1, along the length thereof;



FIG. 7 is a top plan view of the razor handle of FIG. 3, from the perspective of arrow VII in FIG. 3;



FIG. 8 is a bottom plan view of the razor handle of the preceding Figs.;



FIG. 9 is an enlarged side view of the razor handle of the preceding Figs.;



FIG. 10 is a cross-sectional view of the razor handle of FIG. 7, taken along the line X-X;



FIG. 11 is a partial cross-sectional view showing the head portion of the razor handle of FIG. 3, taken along the line XI-XI;



FIG. 12 is a side elevational view of the razor handle of the preceding Figs., showing the opposite side of the razor handle depicted in FIG. 3;



FIGS. 13A to 13L are cross-sectional views of the razor handle of FIG. 12, taken along the lines XIIIA-XIIIA to XIIIL-XIIIL, respectively;



FIG. 14 is a side elevational exploded view showing the components of the razor handle of the preceding Figs.;



FIGS. 15 and 16 are respectively a front top perspective view and a back bottom perspective view showing the elastomeric member and the rigid member that comprise the razor handle of the preceding Figs.; and



FIGS. 17A to 17G are perspective views showing a razor of the preceding Figs. and its mirror image, and illustrate various ways of grasping the razor handle, depending of the shaving positions.





DESCRIPTION

Referring to FIGS. 1 and 2, there is shown a safety razor 1 comprising a handle 2 defining a front end 3 and a back end 4 opposite the front end 3, and having an elongated body portion 5 for hand grasping of the handle 2, extending longitudinally from the back end 4 to a location near the front end 3. The razor further comprises a head portion 6 in the continuation of the body portion 5 up to the front end 3. The razor 1 also comprises a razor head 7 including blades mounted in a head structure defining, in a known manner, a guard and a cap, and connected, at the front end 3, to the head portion 6 by means of bearing structures 8.


The following description will often make reference to different hand grasping positions of the handle 2. Various positions are illustrated in FIGS. 17A to 17G, where the numbers in circles designate the fingers of the human hand: {circle around (1)} the thumb, {circle around (2)} the index, {circle around (3)} the second finger, {circle around (4)} the ring finger and {circle around (5)} the small finger. The depicted positions of FIGS. 17A, 17B, 17C, 17D, 17E, 17F and 17G are respectively called first position, second position, third position, fourth position, fifth position, sixth position and seventh position.


Referring now to FIG. 3, it can be seen that the razor handle 2 has a generally curved shape. The handle 2 defines a length of between approximately 12 cm and 14 cm, as measured along its curvature between the front end 3 and the back end 4. The body portion 5 is approximately 10 cm to approximately 12 cm in length, whereas the head portion 6 is approximately 2 cm to 3 cm in length. In one embodiment, the razor handle 2 is 13.5 cm in length, the body portion 5 is 11 cm in length and the head portion 6 is 2.5 cm in length.


Handle 2 has, extending along its length, an upper surface 9, a lower surface 10 opposite the upper surface 9, and side surfaces 11, 12 joining the upper surface 9 and lower surface 10. Handle 2 is symmetrical with respect to a median plane P made visible in FIGS. 1 and 2 through its lines L1, L2 of intersection with the handle 2, respectively on the upper surface 9 and the lower surface 10. As depicted in FIG. 3, upper surface 9 is, from a side view, arcuate and convex in the longitudinal direction. It can also be seen in FIGS. 13A to 13L that upper surface 9 is also arcuate and convex in cross section (i.e. perpendicular to the symmetry plane P of handle 2).


As depicted in FIGS. 5 and 6, which diagrammatically show the evolution, from a side view, of the radius of curvature of upper surface 9 (in other words, the radius of curvature of the line L1) along the length of the razor handle 2, the radius of curvature is not constant but continuously increases longitudinally (i.e. along the length of the razor handle 2), from the back end 4 toward a median location 13 in the vicinity of half the length of the razor handle 2, whereas the radius of curvature continuously decreases, longitudinally, from the median location 13 toward the front end 3 of the handle 2. In other words, the upper surface 9 is curved more near its ends 3, 4, where the radius of curvature is approximately 2 cm, and more flat in the vicinity of its middle, where the radius of curvature is equal to or more than approximately 20 cm. Such a shape of the upper surface 9 increases ergonomics of the handle 2, its curvature following the natural curvature of the human hand, thereby enhancing grasping comfort.


The upper surface 9 and the lower surface 10 together define, from a side view in the symmetry plane P, a height H of the handle 2. It is visible in FIG. 3 that the height is not constant along the length of the handle 2, where the lower surface 10 is convex in the vicinity of the ends 3, 4 of the handle 2 and concave towards the middle thereof. More specifically, the smallest height H1 of the handle 2 is located about two thirds of the length of the body portion 5, measured from to back end 4 toward the front end 3, so that the handle 2 defines two thicker portions 14, 15 separated by a relatively thinner portion 16. This allows for easier and more comfortable finger positioning before and during shaving operations, especially in the third position (FIG. 17C).


Referring to FIGS. 4 and 7, it can be seen that, from a top view, the body portion 5 has a neck portion 17 in the vicinity of the head portion 6, located at approximately two thirds of the length of the body portion 5, measured from the back end 4, and where the width W of the razor, i.e. the distance between the side surfaces 11, 12, is minimized.


More specifically, from a top view, each side surface 11, 12 extends substantially along an arc of a circle in the neck portion 17. Such a circle has a radius of approximately 5 cm to 10 cm, and preferably approximately 6 cm. This particular shape of the neck portion 17 aims at facilitating hand grasping, especially in the first position (FIG. 17A), which appears to be the most common shaving position.


As depicted in FIGS. 4 and 7, the width W of the handle 2 is maximized in the vicinity of the back end 4 and at the junction between the body portion 5 and the head portion 6. A secondary neck portion 18, defined in the head portion 6 is provided with opposite side gripping areas 19 comprising a series of spaced ribs 20. This enhances finger gripping of the handle 2, especially in a shaving position where the thumb and the index finger are positioned very close to the razor head 7 for satisfying the need for precise shaving, such as mustache trimming. In this position, the body portion 5 of the handle 2 is either free or grasped between the small finger and the palm of the hand.


As depicted in FIGS. 13A to 13K, which are cross sections of the handle 2 taken regularly all along the body portion 5, the side surfaces 11, 12 converge at the opposite ends of the upper surface 9, all along the length of the body portion 2. In other words, the body portion 5 has a generally triangular shape in cross section, except in a zone located near the back end 4 of the handle 2, where the lower surface 10 is provided with a flat or concave recess 21 designed for facilitating finger gripping in certain hand grasping positions. In this zone, the general shape of the body portion 5 in cross section is trapezoidal, as depicted in FIGS. 13C and 13D.


It can be seen in FIGS. 13B to 13K that, except in the immediate vicinity of the back end 4 of the razor handle 2 (FIG. 13A), the angular aperture defined between the side surfaces is less than approximately 90°. Such a triangular shape allows for firm gripping and comfortable grasping of the handle 2, especially in the first position (FIG. 17A).


It can further be seen in FIGS. 13A to 13K that each side surface 11, 12 is convex, except in the vicinity of the head portion 6 (i.e. in the neck portion 17), where the head portion 6 has a concave portion 22 designed for facilitating hand grasping, especially in the first, second, and sixth positions (FIGS. 17A, 17B and 17F, respectively), and also except in the vicinity of the back end 4, where each side surface 11, 12 has a concave portion 23 of approximately 1 cm in length located at a distance of approximately 3 cm from the back end 4. The side surfaces 11, 12 are also designed for facilitating hand grasping, especially in the fourth position (FIG. 17D) and seventh position (FIG. 17G).


The razor handle 2 is of the composite type and is comprised of a rigid core 24 made of a moldable nonelastomeric material such as polypropylene or ABS resin, and a layer 25 made of a compressible elastomeric material (thermoplastic rubber) such as Santoprene. The rigid core 24 provides structural strength to the handle 2 while the layer 25 of compressible elastomeric material provides the softness required for comfortable hand grasping and firm finger gripping in any shaving position.


As can be seen, for example, in FIGS. 13A-13L, the layer 25 of compressible elastomeric material defines a majority of the upper surface 9 on the body portion 5 and it also defines part of the lower surface 10, from the back end 4 to the median location 13, and it even overflows the side surfaces 11, 12 at 26.


The rigid core 24 defines: part of the side surfaces 11, 12 between the side overflowing portions 26 of the layer 25 of compressible elastomeric material, from a location near the back end 4 to the median location 13; part of the side surfaces 11, 12; the whole lower surface 10 from the median location 13 to the head portion 6; and substantially the whole head portion 6, including the side ribs 20, which are therefore integral with the rigid core 24.


As depicted in FIGS. 1 and 4, the body portion 5 is provided with a local upper front gripping or finger rest area 27 comprising a plurality of spaced projections 28 in the form of pins protruding from the upper surface 9. The gripping area 27 is centered on a point 29 that is located at a distance of at least 3 cm from the front end 3. Such a location provides improved gripping and finger rest comfort in certain shaving positions, such as the first position (FIG. 17A), where the index finger of the user is located at a distance from the skin to be shaved, allowing for precise and comfortable shaving.


As depicted in FIG. 1, the layer 25 of compressible elastomeric material forms the upper front gripping area 27, the projections being therefore integral with layer 25, thereby increasing the gripping properties of the handle 2, at least in the first position (FIG. 17A). It can be seen in FIG. 4 that the upper front gripping area 27 is shaped like a bullet having a longitudinal length of approximately 2 cm, which suits the tip of the index finger tip.


The body portion 5 is also provided with a local lower front gripping area 30 located opposite the upper front gripping area 27, comprising a plurality of spaced projections 31 protruding from the lower surface 10. Because, at this location, the lower surface 10 of the body portion 5 is formed by the rigid core 24, the projections 31, in the form of pins, are integral with the rigid core 24. The lower front gripping area 30 provides, in combination with the upper front gripping area 27, enhanced gripping properties in certain shaving positions, such as the one (not depicted) where the razor handle 2 is grasped between the thumb and the index finger in the vicinity of the head portion 6, whereas the rest of the handle 2 is free. Such a shaving position, in which the index finger rests onto the upper front gripping area 27 while the thumb rests onto the lower front gripping area 30, is sometimes used for precise shaving operations, such as mustache trimming.


The body portion 5 is also provided with a local upper back gripping area 32 comprising a plurality of spaced projections 33 in the form of pins protruding from the upper surface 9, and centered on a point 34 located at a distance of approximately 2 cm from the back end 4 of the body portion 5. The body portion also comprises a local lower back gripping area 35, located substantially opposite the upper back gripping area 32, comprising a plurality of spaced projections 36 in the form of pins protruding from the recess 21 in the lower surface 10 and centered on a point 37 located at a distance of approximately 2.5 cm from the back end 4. Because, in this region, the upper and lower surfaces 9, 10 are defined by the layer 25 of compressible elastomeric material, the pins 33, 36 of the upper and lower back gripping areas 32, 35 are integral with the elastomeric layer 25. This enhances hand grasping in certain shaving positions, such as the fourth position (FIG. 17D), or in a position where the razor handle is held between the index finger and the thumb, the thumb resting on the lower back gripping area 35 whereas the index finger rests on the upper back gripping area 32, the handle 2 being in continuation with the fingers. Such a shaving position is used in particular for horizontal cheek shaving.


The lower back gripping area 35 can also be used in combination with the upper front gripping area 27 in certain shaving positions such as the first position (FIG. 1) and the fifth position (FIG. 17E). This is why the distance between these areas 27 and 35 has to be carefully defined. In order to provide excellent finger gripping and comfortable hand grasping in these shaving positions, the distance between the lower back gripping area 35 and the upper front gripping area 27, measured along the curvature of the handle 2, is between approximately 7 cm and 9 cm. In the depicted embodiment, this distance is approximately 8 cm, which suits the majority of male hands.


As depicted in FIG. 10, the handle 2 includes an air cushion 38 underneath the upper front gripping area 27 located or disposed between the rigid core 24 and the layer 25 of compressible elastomeric material. More specifically, in the region underneath the upper front gripping area 27, the rigid core 24 defines a groove 39 that is filled with the compressible material, except for in the bottom 40 of the groove 39, where the air cushion 38 is located. Such an air cushion 38, acting like a compression spring, adds softness and compressibility to the upper surface 9 of the handle 2 in the region of the upper front gripping area 27, where the index finger rests in the first position (FIG. 17A), thereby enhancing the gripping and comfort properties of the handle 2 by providing more conformability to the finger tip.


The air cushion 38 is built up during the manufacturing process of the handle 2, in which there is provided a step of molding the rigid core 24, followed by a step of molding the layer 25 of compressible elastomeric material over the rigid core 24 after a short predetermined rest time (few seconds) where the rigid core 24 is allowed to cool. The resin of which the core 24 is made of is injected at a primary injection point 41 located near the middle of the handle 2, whereas the compressible elastomeric material is injected at a secondary injection point 42 that faces the groove 39 near the head portion. The flow of pressurized elastomeric material generates an air bubble which is imprisoned at the bottom 40 of the groove 39, thereby building up the air cushion 38 between the rigid core 24 and the elastomeric layer 25.


As depicted in FIGS. 1-3, in the region of the neck portion 17, the handle 2 is provided with opposite side gripping areas 43, 44 comprising a row of spaced fins 45 made of elastomeric material, protruding from the rigid core 24.


More specifically, in the region of the neck portion 17, the rigid core 24 and the layer 25 of compressible material define complementary comb-like structures 46, 47 embedded and imbricated in each other as depicted in FIGS. 14-16. In the neck portion 17, the elastomeric layer 25 is wider than the rigid core 24, so that the elastomeric fins 45 extend laterally outside from the rigid core 24, thereby providing better finger gripping in certain positions, especially the first position (FIG. 17A), second position (FIG. 17B) and sixth position (FIG. 17F).


As depicted in FIG. 9, each fin 45 extends from a root 48, located in the side overflowing portion 26 of the elastomeric layer 25 near the upper surface 9, to an end 49 located on the side surface 11, 12 at a distance from the upper surface 9. It can also be seen in FIG. 9 that the fins 45 are parallel and each inclines backwards, from the root 48 to the end 49, with respect to a plane perpendicular to the upper edge L1 of the handle 2 (which corresponds, as disclosed hereabove, to the intersection of the symmetry plane P and the upper surface 9 of the handle 2). Such an inclination improves the ergonomics of the handle 2, especially in the first position (FIG. 17A), where the fins 45 extend substantially perpendicular to the axis of the index finger. In one embodiment, the distance between two adjacent fins 45 is approximately 1 mm, whereas the fins 45 have a depth less than 0.5 mm, and more preferably 0.2 mm, and a width that is greater than the depth, and more specifically, approximately 1 mm.


The imbricate structure of the side gripping areas 43, 44 provides a good compromise between softness (via the elastomeric fins 45) and rigidity (via the rigid core 24) for firm and comfortable grasping of the razor handle 2, especially in the first position (FIG. 17A).


As depicted in FIG. 9, the ends 49 of the fins 45 together form a continuously curved limit 50 (in phantom) of the corresponding side gripping areas 43, 44, in order to match as closely as possible, the roundness of the finger tips, especially in the first position (FIG. 17A), thereby enhancing comfort of hand grasping.


Turning now to FIGS. 7, 8 and 11, it can be seen that the head portion 6 of the razor handle 2 has a V-shaped pair of spaced arms 51, 52 each provided, at an end thereof, with a bearing structure 8 for connection to the a razor head 7.


In the disclosed embodiment, the razor head 7 is of the swiveling type, the bearing structures 8 comprising arcuate rails 53 clipped into corresponding hooks 54 provided on the razor head 7, wherein a longitudinal flexible tongue 55, extending between the arms 51, 52 and cooperating with a groove formed on the razor head 7, provides a spring force which biases the razor head 7 towards a median rest position as illustrated in FIG. 1.


As depicted in FIG. 11, each arm 51, 52, which is integral with the rigid core 24, has a reticulated structure, and comprises a pair of side walls 56, 57 interconnected by a series of transverse stiffeners 58 that are inclined at approximately 45° with respect to the side walls 56, 57, thereby together defining, from a top view, a series of triangular-shaped cavities 59. Such a structure provides enough structural strength to the head portion 6 for the purposes of human shaving, while saving handle 2 weight and costs.


In the depicted embodiment, where the razor 1 is of the disposable type, which means that once mounted on the handle 2, the razor head 7 does not have to be dismounted, each arm 51, 52 comprises a median wall 60 interconnecting the side walls 56, 57, and perpendicular to the side walls 56, 57 and to the stiffeners 58, thereby increasing longitudinal rigidity of the arms 51, 52.


It can be appreciated from FIGS. 3 and 11 that, from a side and top view, each arm 51, 52 has a width that decreases towards the end of the arms 51, 52, thereby further reducing handle 2 weight without losing structural strength.


As a result of all the described features, the razor handle 2 has an enhanced design that improves finger gripping and provides more hand grasping comfort during shaving operations than known razor handles.

Claims
  • 1. A razor handle made of a rigid core and a layer of elastomeric material disposed on at least a portion of the rigid core, the razor handle comprising: a head portion disposed at a front end of the razor handle, and a back end opposite the front end, the head portion having a bearing structure for connection to a razor head; anda body portion comprising:an upper surface;a lower surface opposite the upper surface, wherein the rigid core at least partially defines the lower surface;an upper front gripping area having a first plurality of spaced pins protruding from the upper surface, the upper front gripping area being formed as a single unitary structure with the layer of elastomeric material and being centered on a point located at a distance of at least 3 cm from a front end of the head portion;a lower front gripping area located opposite the upper front gripping area, the lower front gripping area being formed as a single unitary structure with the rigid core and having a second plurality of spaced pins protruding from the lower surface, the second plurality of spaced pins having the same size and shape as the first plurality of spaced pins;an upper back gripping area having a third plurality of spaced pins protruding from the upper surface, the upper back gripping area being formed as a single unitary structure with the layer of elastomeric material, the third plurality of spaced pins having the same size and shape as the first plurality of spaced pins; anda lower back gripping area having a fourth plurality of spaced pins protruding from the lower surface, the lower back gripping area being formed as a single unitary structure with the layer of elastomeric material, the fourth plurality of spaced pins having the same size and shape as the first plurality of spaced pins.
  • 2. The razor handle according to claim 1, wherein the upper front gripping area has a shape adapted to receive an index finger tip.
  • 3. The razor handle according to claim 1, wherein the upper front gripping area is approximately 2 cm in length.
  • 4. A razor handle comprising: a head portion having a front end, a back end opposite the front end, and a bearing structure at the front end for connection to a razor head; anda body portion extending longitudinally and comprising:a front end;a back end opposite the front end;an upper surface;a lower surface opposite the upper surface;an upper front gripping area having a first plurality of spaced pins protruding from the upper surface, the upper front gripping area being formed as a single unitary structure with a layer of elastomeric material and being centered on a point located at a distance of at least 3 cm from the front end of the head portion;an upper back gripping area having a second plurality of spaced pins protruding from the upper surface, the upper back gripping area being formed as a single unitary structure with the layer of elastomeric material and being centered on a point located at a distance approximately 2 cm from a back end of the body portion, the second plurality of spaced pins having the same size and shape as the first plurality of spaced pins,a lower front gripping area located opposite the upper front gripping area, the lower front gripping area being formed as a single unitary structure with a rigid core and having a third plurality of spaced pins protruding from the lower surface, the third plurality of spaced pins having the same size and shape as the first plurality of spaced pins; anda lower back gripping area having a fourth plurality of spaced pins protruding from the lower surface, the lower back gripping area being formed as a single unitary structure with the layer of elastomeric material, the fourth plurality of spaced pins having the same size and shape as the first plurality of spaced pins,wherein the upper back and upper front gripping areas are separated longitudinally by an area free of spaced projections protruding from the upper surface.
  • 5. The razor handle according to claim 4, wherein the layer of elastomeric material at least partially defines the upper surface and the lower surface in the vicinity of the back end of the razor handle.
  • 6. The razor handle according to claim 4, wherein the lower back gripping area is located in a recess formed in the lower surface.
  • 7. The razor handle according to claim 4, wherein the lower back gripping area is centered on a point located at a distance approximately 2.5 cm from the back end of the body portion.
  • 8. The razor handle according to claim 7, wherein the distance between the lower back gripping area and the upper front gripping area ranges between approximately 7 cm to approximately 9 cm.
  • 9. A razor handle having a rigid core and a layer of elastomeric material disposed on at least a portion of the rigid core, the razor handle comprising: a head portion disposed at a front end of the razor handle, the head portion having a bearing structure at a front end of the head portion; anda body portion extending longitudinally and having a front end and a back end opposite the front end and comprising: an upper surface;a lower surface opposite the upper surface, wherein the rigid core at least partially defines the lower surface;an upper front gripping area that includes a first plurality of spaced pins protruding from the upper surface, the upper front gripping area being formed as a single unitary structure with the layer of elastomeric material;a lower front gripping area located opposite the upper front gripping area, the lower front gripping area being formed as a single unitary structure with the rigid core and having a second plurality of spaced pins protruding from the lower surface, the second plurality of spaced pins having the same size and shape as the first plurality of spaced pins;an upper back gripping area having a third plurality of spaced pins protruding from the upper surface, the upper back gripping area being formed as a single unitary structure with the layer of elastomeric material, the third plurality of spaced pins having the same size and shape as the first plurality of spaced pins; anda lower back gripping area having a fourth plurality of spaced pins protruding from the lower surface, the lower back gripping area being formed as a single unitary structure with the layer of elastomeric material, the fourth plurality of spaced pins having the same size and shape as the first plurality of spaced pins.
  • 10. A razor handle comprising: a rigid core;a layer of elastomeric material;a head portion at a front end of the razor handle;a back end opposite the front end;a bearing structure connected to the head portion; anda body portion extending longitudinally and comprising: an upper surface;a lower surface opposite the upper surface, wherein the rigid core at least partially defines the lower surface;an upper front gripping area having a first plurality of spaced pins protruding from the upper surface, the upper front gripping area being formed as a single unitary structure with the layer of elastomeric material and being centered on a point located at a distance of at least 3 cm from the front end of the head portion;a lower front gripping area located opposite the upper front gripping area, the lower front gripping area being formed as a single unitary structure with the rigid core and having a second plurality of spaced pins protruding from the lower surface, the second plurality of spaced pins having the same size and shape as the first plurality of spaced pins;an upper back gripping area having a third plurality of spaced pins protruding from the upper surface, the upper back gripping area being formed as a single unitary structure with the layer of elastomeric material, the third plurality of spaced pins having the same size and shape as the first plurality of spaced pins; anda lower back gripping area located opposite the upper back gripping area, the lower back gripping area having a fourth plurality of spaced pins protruding from the lower surface, the fourth plurality of spaced projections being formed as a single unitary structure with the elastomeric layer, the fourth plurality of spaced pins having the same size and shape as the first plurality of spaced pins.
  • 11. A razor comprising: a razor head; anda razor handle having a front end, a back end opposite the front end, a rigid core, and a layer of elastomeric material disposed on at least a portion of the rigid core, the razor handle comprising: a head portion having a bearing structure for connection to the razor head; anda body portion comprising: an upper surface;a lower surface opposite the upper surface;an upper front gripping area that includes a first plurality of spaced pins protruding from the upper surface, the upper front gripping area being formed as a single unitary structure with the layer of elastomeric material;a lower front gripping area located opposite the upper front gripping area, the lower front gripping area being formed as a single unitary structure with the rigid core and having a second plurality of spaced pins protruding from the lower surface, the second plurality of spaced pins having the same size and shape as the first plurality of spaced pins;an upper back gripping area having a third plurality of spaced pins protruding from the upper surface, the upper back gripping area being formed as a single unitary structure with the layer of elastomeric material, the third plurality of spaced pins having the same size and shape as the first plurality of spaced pins; anda lower back gripping area having a fourth plurality of spaced pins protruding from the lower surface, the lower back gripping area being formed as a single unitary structure with the layer of elastomeric material, the fourth plurality of spaced pins having the same size and shape as the first plurality of spaced pins.
PCT Information
Filing Document Filing Date Country Kind 371c Date
PCT/EP2005/001648 2/3/2005 WO 00 8/3/2007
Publishing Document Publishing Date Country Kind
WO2006/081842 8/10/2006 WO A
US Referenced Citations (133)
Number Name Date Kind
545789 Gaffney Sep 1895 A
876317 Booth Jan 1908 A
1636867 Robinson Jul 1927 A
2263885 McGauley Nov 1941 A
2335547 Smith Nov 1943 A
2378605 Watson Jun 1945 A
2703449 Haynes Mar 1955 A
3045342 Diehl Jul 1962 A
3067446 McGauley Dec 1962 A
3080651 Cas Mar 1963 A
3302230 Poppelmann Feb 1967 A
3762453 Merrow et al. Oct 1973 A
D229795 Holohan Jan 1974 S
4031775 Petty Jun 1977 A
4091497 Bade May 1978 A
4182258 Presser Jan 1980 A
4198746 Trotta Apr 1980 A
4283808 Beebe Aug 1981 A
4327488 Connolly May 1982 A
4392303 Ciaffone Jul 1983 A
4399582 Ernest et al. Aug 1983 A
4428116 Chen et al. Jan 1984 A
4444711 Schad Apr 1984 A
4587730 Iten May 1986 A
4601101 McGready Jul 1986 A
4712301 Saito Dec 1987 A
4721021 Kusznir Jan 1988 A
4736928 Smilkstein Apr 1988 A
4739536 Bandera et al. Apr 1988 A
4828420 Otsuka et al. May 1989 A
4949457 Burout, III Aug 1990 A
4969231 Mader et al. Nov 1990 A
4974286 Stowell et al. Dec 1990 A
5018733 Buand May 1991 A
5027511 Miller Jul 1991 A
5031319 Althaus et al. Jul 1991 A
5038472 Iderosa Aug 1991 A
5052071 Halm Oct 1991 A
5054154 Schiffer et al. Oct 1991 A
5070614 Hardin et al. Dec 1991 A
5107590 Burout, III et al. Apr 1992 A
5199191 Moumdjian Apr 1993 A
5261430 Mochel Nov 1993 A
5265337 Lowder et al. Nov 1993 A
5287584 Skinner Feb 1994 A
5305490 Lundgren Apr 1994 A
5316316 Lai May 1994 A
5333383 Ferraro Aug 1994 A
5333595 Heffron Aug 1994 A
5339482 Desimone et al. Aug 1994 A
5347717 Ts'ai Sep 1994 A
5353464 Atkins et al. Oct 1994 A
5373602 Bang Dec 1994 A
5390572 Gakhar et al. Feb 1995 A
5402573 Laniado Apr 1995 A
5497551 Apprille, Jr. et al. Mar 1996 A
5530989 Remmert et al. Jul 1996 A
5669835 Tiura Sep 1997 A
5687485 Shurtleff et al. Nov 1997 A
5696339 Brennan Dec 1997 A
5774921 Harrison et al. Jul 1998 A
5781958 Meessmann et al. Jul 1998 A
5784790 Carson, III et al. Jul 1998 A
5822869 Metcalf et al. Oct 1998 A
5828052 Reynolds et al. Oct 1998 A
5839163 Hellmann Nov 1998 A
5855071 Apprille, Jr. et al. Jan 1999 A
5890296 Metcalf et al. Apr 1999 A
5903978 Prochaska et al. May 1999 A
5915791 Yin et al. Jun 1999 A
D412810 Alfred Aug 1999 S
5956851 Apprille, Jr. et al. Sep 1999 A
6049945 Prevot et al. Apr 2000 A
6108869 Meessmann et al. Aug 2000 A
6112412 Richard Sep 2000 A
6122826 Coffin et al. Sep 2000 A
6138361 Richard et al. Oct 2000 A
6141875 Andrews Nov 2000 A
6145900 Jung Nov 2000 A
6149538 Tiura Nov 2000 A
6164172 Huang Dec 2000 A
6266888 Zowaski Jul 2001 B1
6308416 Bosy et al. Oct 2001 B1
6481104 Parker et al. Nov 2002 B1
6588113 Bozikis et al. Jul 2003 B2
6591456 DeLuca et al. Jul 2003 B2
6598303 Bosy et al. Jul 2003 B2
6684511 McCambridge et al. Feb 2004 B2
6694626 Kludjian et al. Feb 2004 B2
6739053 McCambridge et al. May 2004 B2
6749788 Holden et al. Jun 2004 B1
D500174 Gray Dec 2004 S
6837637 Beck et al. Jan 2005 B1
6880253 Gyllerstrom Apr 2005 B1
6886262 Ohtsubo et al. May 2005 B2
6977619 March et al. Dec 2005 B2
6986206 McCambridge et al. Jan 2006 B2
6996870 Hohlbein Feb 2006 B2
7014379 Cheng Mar 2006 B2
7065882 Haberstroh Jun 2006 B2
7086160 Coffin et al. Aug 2006 B2
7146675 Ansari et al. Dec 2006 B2
7200942 Richard Apr 2007 B2
7297303 Kraemer Nov 2007 B2
7334286 Kayser Feb 2008 B2
7383619 Gross et al. Jun 2008 B2
7458125 Hohlbein et al. Dec 2008 B2
7461458 Peyser et al. Dec 2008 B2
D588308 Wonderley Mar 2009 S
7523525 Lawless Apr 2009 B2
7526869 Blatter et al. May 2009 B2
20020059733 Bozikis et al. May 2002 A1
20020138992 Richard Oct 2002 A1
20020184770 Peyser Dec 2002 A1
20030046819 Ferraro et al. Mar 2003 A1
20030061718 Dansreau Apr 2003 A1
20030070259 Brown et al. Apr 2003 A1
20030070309 Brown et al. Apr 2003 A1
20030177648 Zeiter Sep 2003 A1
20040020053 Wain Feb 2004 A1
20040035003 Stiles Feb 2004 A1
20040093735 Ohtsubo et al. May 2004 A1
20040103545 Dansreau Jun 2004 A1
20040170464 Polczynski Sep 2004 A1
20040177518 Leventhal Sep 2004 A1
20040221425 Lawless Nov 2004 A1
20040261271 Coffin et al. Dec 2004 A1
20050102847 King May 2005 A1
20050198843 Royle Sep 2005 A1
20060037160 Kayser Feb 2006 A1
20060283025 Follo et al. Dec 2006 A1
20080229583 Fischer et al. Sep 2008 A1
20090038167 Peyser et al. Feb 2009 A1
Foreign Referenced Citations (28)
Number Date Country
1 243 629 Feb 2000 CN
295 11 444 Nov 1995 DE
10 2004 059 517 Jun 2006 DE
0 353 919 Sep 1992 EP
0 418 726 Jan 1995 EP
0 987 088 Mar 2000 EP
1 046 471 Oct 2000 EP
1 182 015 Feb 2002 EP
1 337 382 May 2002 EP
1 226 906 Jul 2002 EP
1 140 441 Mar 2004 EP
1 531 030 May 2005 EP
1 531 030 May 2005 EP
2 640 182 Jun 1990 FR
2 246 314 Jan 1992 GB
2 282 773 Apr 1995 GB
2 402 096 Dec 2004 GB
WO 9013442 Nov 1990 WO
WO 9611778 Apr 1996 WO
WO 9709155 Mar 1997 WO
WO 0234483 May 2002 WO
WO 03005858 Jan 2003 WO
WO 03033223 Apr 2003 WO
WO 2004018163 Mar 2004 WO
WO 2004094114 Nov 2004 WO
WO 2005007355 Jan 2005 WO
WO 2005009689 Feb 2005 WO
WO 2005084896 Sep 2005 WO
Related Publications (1)
Number Date Country
20080163500 A1 Jul 2008 US