The embodiments of the present invention relate to razor handles and razors.
More precisely, the embodiments of the present invention relate to a razor handle that includes an elongated body extending in a longitudinal direction, the elongated body having an outer surface and being provided with a first hole and a second hole, the first and second holes opening on the outer surface of the elongated body, the razor handle further that includes a first insert and a second insert.
WO 2008147133 discloses an example of such a known razor handle in which several inserts are provided on different faces of the razor handle so as to provide a proper weight to the handle assembly and prevent the deformation of the elongated body.
However, these inserts consist in several different pieces with complex shapes; therefore, a razor handle provided with such inserts is difficult to assemble and to manufacture. In addition, each of these inserts can inadvertently be detached from the razor handle.
One objective of the embodiment of the present invention is to avoid these drawbacks. More specifically, one problem of the invention is to facilitate the manufacture of the razor handle according to the invention.
Another problem is to improve the shaving experience of the user while shaving.
Another problem is to avoid any inadvertent separation of any of the inserts provided on razor handle according to the invention.
This problem is solved by the fact that, according to the invention, the first and second inserts are respectively partially encapsulated within the first and second holes.
Thanks to the inserts, the razor handle can also have a proper weight ensuring a precise and comfortable shaving while providing an advantage for mass produced shavers
In addition, since the inserts are encapsulated within the elongated body, they cannot be detached from the first and second holes; they especially cannot be detached from the hole by a user. Also, such a razor handle has a better hold and an improved resistance.
Thanks to the inserts, the razor handle can also have a proper weight promoting a comfortable shaving. The inserts allow the razor handle to have a good balance regardless the shape of the handle.
Furthermore, such a razor handle according to the present invention can be easily recycled by separating the material of the inserts from the material of the elongated body.
The invention also concerns a razor handle that includes an elongated body extending in a longitudinal direction, the elongated body having an outer surface and being provided with a first hole, the first hole opening on the outer surface of the elongated body, the razor handle further that includes a first insert, the first insert being a sphere which is partially encapsulated within the first hole and the razor handle having, in cross section, a general trapezoidal shape with smooth corners in the vicinity of the first hole.
In advantageous embodiments of such razor handles, one and/or the other of the following features may be incorporated:
Consequently, the user can position one or several of his fingers on the first insert to grasp the handle. The razor handle thus provides a good shaving experience with such a razor handle.
The first insert is movable within the first hole;
Consequently, the user can position one or several of his fingers on the second insert to grasp the handle.
The razor handle thus provides a good shaving experience with such a razor handle.
The elongated body is a unitary element and that includes a first material chosen among the plastics and the rubbers;
When the inserts comprise a material having a density that is greater than the density of the first material of the elongated body, the presence of the inserts result in an increase of the weight of the razor handle which improve the user's perception while shaving. This increase of weight can be achieved by reducing the use of first material and still maintaining a good shaver handle design. The size and shape of the razor handle may be then reduced but may still keep an ergonomic shape.
The invention also concerns a razor that includes such a razor handle and a shaving cartridge connected to the razor handle.
The above and other objects and advantages of the invention will become apparent from the detailed description of one embodiment of the invention, considered in conjunction with the accompanying drawings.
In the various figures, the same references denote identical or similar elements.
The razor handle 2 has a generally curved shape (viewed laterally) and extends in a longitudinal direction C between a front end 2A and a rear end 2B, the rear end 2B being opposite the front end 2A. The razor handle 2 has also an elongated body 4 for hand grasping the razor handle 2. More precisely, the elongated body 4 extends longitudinally from the rear end 2B to a location near the front end 2A. The razor further that includes connecting means 5 in the continuation of the elongated body 4 up to the front end 2A. In other words, the elongated body 4 extends longitudinally from the rear end 2B to the beginning of the connecting means 5. The shaving razor 1 extends longitudinally from the rear end 2B to the free end of the connecting means 5 (the free end being the one to be connected to the shaving cartridge 3).
Referring to
In a preferred embodiment, the length L of the razor handle 2 is of about 126 mm. The length L5 of the connecting means 5 is of about 17 mm. The length L4 of the elongated body 4 is of about 108 mm.
The razor handle 2 may also define a variable height H and a width W along the length L thereof The height H of the razor handle 2 may vary along the direction C but is preferably comprised between 15 mm and 25 mm, preferably about 20 mm. As depicted in
It can be seen on the upper and lower views of the razor handle 2 of
In a preferred embodiment, the length LEp1 of the first enlarged part Ep1 is of about 25 mm. The length LEp2 of the second enlarged part Ep2 is of about 50 mm. The length LSp of the slim part Sp is of about 25 mm.
As depicted in
This general trapezoidal shape is highlighted on the figures by a virtual trapeze TZ put for instance on
It can further be seen in
The connecting means 5 are integral with the elongated body 4 and that includes two flexible arms 6 extending from the elongated body 4 and protruding toward a free end 6B at the front end 2A of the razor handle 2. In other words, the flexible arms 6 and the elongated body 4 are unitary.
As depicted on
Each arm 6 further has on its upper face a plurality of small cavities 21. Such a structure provides enough structural strength to the connecting means 5 for the purposes of human shaving, while saving weight and costs on this part of the razor handle 2. More precisely, the arms 6 and the flexible tongue 8 have a squared shape with smooth corners, allowing an improved robustness of the connecting means 5.
The elongated body 4 has an outer surface 4E, and more precisely an upper face 4A and a lower face 4B as depicted on
The elongated body 4 and the connecting means 5 form a unitary element moulded out of a first material 22. The first material 22 may be any moldable material. Preferably, the first material 22 is chosen among the plastics and the rubbers. For instance, the elongated body 4 and the connecting means 5 can be moulded in a thermoplastic material, for instance in acrylonitrile butadiene styrene (ABS) or in polypropylene (PP).
The elongated body 4 further includes a first hole 9 and a second hole 10. The first and second holes 9, 10 are respectively located in the first enlarged part Ep1 and in the second enlarged part Ep2 of the razor handle 2.
The first and second holes 9, 10 are preferably through-holes that extend between the upper face 4A and the lower face 4B of the elongated body 4. However, the first and second holes 9, 10 may also be blind holes that open on the outer surface 4E of the elongated body 4, and in particular on the upper face 4A or on the lower face 4B.
As shown in
As seen on
The length L9 of the first hole 9 along the longitudinal direction is comprised between 10 mm and 30 mm, preferably about 20 mm. The length L10 of the second hole 10 along the longitudinal direction is comprised between 30 mm and 50 mm, preferably about 40 mm. Also, as illustrated in
The razor handle 2 further that includes a first insert 11 and a second insert 12 located respectively within the interior space 9B, 10B of each first and second holes 9, 10. More precisely, the first and second inserts 11, 12 are respectively partially encapsulated within the first and second holes 9, 10 as illustrated in
In this manner, when a user wants to shave, he may position his fingers on the location of the first and second holes 9, 10, and preferably on the surfaces of the first and second inserts 11, 12 which are not encapsulated. Preferably, the first and second inserts 11, 12 enhance hand grasping in certain shaving positions, such as in a position where the razor handle 2 is held between the index and the thumb, the thumb resting on the first insert 11 on the upper face 4A whereas the index rests on the first insert 11 on the lower face 4B of the razor handle 2. In another shaving position, the thumb and the index of the user can also rest on the second insert 12. As it will be detailed below, the second insert 12 may not be directly touchable with a finger of a user on the upper face 4A as a rib 14 may cover partially the second insert 12. The user may therefore position his finger(s) on the rib 14 on the upper face 4A of the elongated body 4 when shaving. Although covered by the rib 14, the second insert 12 however forms a finger rest area since it supports the rib 14. In other means, it is like the second insert 12 would be covered at least partially with another material (i.e. the material of the rib 14).
The first and second inserts 11, 12 are preferably made in a material chosen among the metals, the plastics and the rubbers. In particular, the first insert 11 and/or the second insert 12 is preferably made in a rigid material having a density that is significantly different from the density of the first material 22 of the elongated body 4.
For instance, the density of the first and second inserts 11, 12 may be greater than the density of the first material 22 of the elongated body 4. The first and second inserts 11, 12 thus contribute to raise weight of the razor handle 2 without significantly increasing the volume of the handle 2. As a consequence, the razor handle 2 can be heavy enough to provide a good shaving and to make sure that a good contact is provided between the blades 3A of the shaving cartridge 3 and the skin of the user to be shaved. Preferably, each of the first and second inserts 11, 12 is only made of metal and does not comprise any other material.
The material chosen for the first insert 11 and/or the second insert 12 may also have an impact on the sensing experience of the user when he positions his fingers on the first and second inserts 11, 12. As an example, an insert made of metal provides a pin-point contact with the fingers of the user, thus allowing the communication of all transmitted vibrations from shaving. To the contrary, an insert made of rubber, such as thermoplastics, absorbs most of the vibrations from shaving and does not transmit them to the fingers of the user.
As an alternative, the first and second inserts 11, 12 may not be both necessarily in the same material. For instance, the first insert 11 provided within the first hole 9 may be made of metal and the second insert 12 provided within the second hole 10 may be made of rubber or vice versa. As another alternative, the first insert 11 may be a sphere in metal and the second insert 12 may be a sphere in rubber. According to this last alternative, the first insert 11, which is thus in metal, reinforces the comfort feeling and handle control when a user places his/her index finger on it. It also enhances the directional tactile feedback of the user due to the difference of texture, temperature and shape that exist between the first insert 11 in metal and the first material 22 of the elongated body 4. The second insert 12, which thus is a sphere, enriches the softness when placing the fingers on the razor handle 2. It also enhances the visual continuity with the first insert 11 in this particular alternative in which the first insert 11 is a metal sphere.
Besides, each of the first and second inserts 11, 12 can also be made with several materials. In particular, the first and second inserts 11, 12 can be covered with a layer of another material having a smooth surface. As an example, the first and second inserts 11, 12 may be made of metal and covered by a layer of rubber. In this embodiment, the layer can have a surface finish comprised between 0.5 gm and 1.6 gm (roughness Ra).
The first and second inserts 11, 12 may also have an irregular surface, for instance with craters or bumps due to a knurled pattern or a divot pattern. As a matter of fact, the type of surface of the first and second inserts 11, 12 affect the tactile sensing of the user when he positions his fingers on the first and second inserts 11, 12.
As another alternative, the first insert 11 and/or the second insert 12 may be a sphere of which one hemisphere is made of rubber and the other hemisphere is made of plastic. The first and second inserts 11, 12 may thus serve a double purpose by providing different types of finger rest areas.
Due to the first and second inserts 11, 12, the elongated body 4 can therefore be in a material which is lighter and cheaper when compared to the material used in known razor handles. Nevertheless, despite the lightness of the first material 22, the razor handle 2 still has a good quality appearance and an optimized weight thanks to the first and second inserts 11, 12. Besides, the weight of the razor handle 2 is chosen to be localized in the front end 2A and the rear end 2B of the razor handle 2, thus ensuring a good balance of the razor handle 2.
The first insert 11 and/or the second insert 12 may have a spherical shape. The first inserts 11 and/or the second insert 12 may have an ovoid shape. More generally, the inserts may have any other shape such as a parallelipipedic, cubical or cylindrical shape. Besides, the first and second inserts 11, 12 may have the same shape or may have a different one. Similarly, first and second inserts 11, 12 may have the same dimensions or may have different ones. Besides, the first and second inserts 11, 12 may comprise the same material(s) or may comprise a different one(s).
Preferably, the inclusion of the first and second inserts 11, 12 does not lead to an excessive deformation of the shape of the elongated body 4. Besides, the shape of the elongated 4 preferably remains similar to the shape of an elongated body that would not include any insert. As depicted on the
Besides, the first and second inserts 11, 12 have a size which is respectively inferior to the interior spaces 9B, 10B of each first and second hole 9, 10. Also, as illustrated on
In one embodiment, the first and second inserts 11, 12 are preferably maintained, advantageously secured, respectively within the first and second holes 9, 10 and can therefore not be detached from the first and second holes 9, 10 by a user. Besides, the first and second inserts 11, 12 cannot move in any manner in the first and second holes 9, 10. As a consequence, the first and second inserts 11, 12 are not movable (i.e. immovable or motionless) respectively relative to the first and second holes 9, 10. The non-movable first and second inserts 11, 12 thus form finger rest areas. More precisely, the first and second inserts 11 and 12 cannot slide in their corresponding first and second holes 9, 10.
More particularly, as depicted in
However, in another embodiment, the first insert 11 and/or the second insert 12 may be a sphere that can rotate on itself about its own axis in all directions. Also, a gap may be provided between the first insert 11 and the retaining ring 13 in order to facilitate the rotation of the first insert 11 when it is a sphere. The gap may be comprised between 0.005 gm and 0.025 gm depending on the chosen rotational freedom of the first insert 11. A smaller gap prevents the first insert 11 from rotating easily whereas a bigger gap facilitates the rotation. The surface finish of the first insert 11 and/or the second insert 12 and/or of the first hole 9 and/or the second hole 10 is adapted to allow this movability, especially the rotation.
Thus, in that case, one among the first insert 11 and/or the second insert can be immovable.
In another embodiment, both the first insert 11 and the second insert 12 are movable. The first insert 11 and the second insert 12 can for instance be spheres that are movable, especially in sliding around their own axis within their corresponding first and second holes 9, 10.
In the case where the first and/or second inserts 11, 12 comprise two hemispheres made of different materials and thus having different density, the user can switch between the two hemispheres as needed by rotating the first and second inserts 11, 12.
A user that may position one of his fingers on such a movable first insert 11 and/or second insert 12 will find difficult to shave as his finger(s) will constantly slip on the first insert 11 and/or the second insert 12. Shaving will therefore be imprecise and uncomfortable.
As a consequence, when the first or second insert 11, 12 is movable respectively relative to corresponding first or second holes 9, 10, it cannot form fingers rest areas. More precisely, when the first insert 11 is movable, it cannot be a finger rest area.
As illustrated in
By being respectively maintained in the first and second holes 9, 10, the first and second inserts 11, 12 are respectively located in the front end 2A and the rear end 2B of the razor handle 2. Preferably, the first insert 11 is centered on a first point 11A which is located at a distance L11 measured along the longitudinal direction (C) of about 25 mm from the front end 2A. The second insert 12 is located in the vicinity of the rear end 1B. Preferably, the second insert 12 is centered on a second point 12A which is located at a distance L12 measured along the longitudinal direction C of about 25 mm from the rear end 2B.
As illustrated on
The distance L11-12 between the first point 11A and the second point 12A measured along the longitudinal direction (C) is preferably comprised between 60 mm and 100 mm, preferably of about 78 mm. However, this distance L11-12 may vary depending on the length L4 of the elongated body 4 as well as on the weight balance to be preferred due to the first and second inserts 11, 12.
In particular, known razors without inserts usually have a center of balance that is located in the center of the razor handle, or slightly towards the front end toward the razor handle. To this end, the rear part of the razor handle cannot be much larger than its front part, and vice versa, in order to achieve this center of balance. In the embodiment of the present invention, by adding the first and second inserts 11, 12 at precise locations from the front end 2A and the rear end 2B of the razor handle 2, it is possible to control the location of this center of balance regardless the shape of the razor handle 2. For instance, the center of balance may be positioned at the center of the razor handle 2 in the longitudinal direction (C) even though the second enlarged part Ep2 is significantly larger than the first enlarged part Ep1.
The elongated body 4 may comprise several different materials. For instance, the elongated body 4 may also comprise a layer of a second material 23 different from the first material 22, preferably chosen among the plastics and the rubbers. The first material 22 provides structural strength to the razor handle 2, while the second material 23 provides the softness required for comfortable hand grasping and firm finger gripping in any shaving position.
As depicted in
As can be seen, for example, on
As depicted in
The lateral sides 4C, 4D of the elongated body 4 further that includes a plurality of smooth ribs 16 made of the second material 23. As shown in
As depicted on
According to an embodiment of the present invention, the insert (first and/or second) can be movable or immovable in its corresponding hole; besides, the insert (first and/or second) can be a sphere or of any other shape allowing the movability of the insert. The material and/or the surface finish of the insert (first and/or second) and/or of the hole (first and/or second) is adapted to allow this movability, especially by rotation. Besides, the insert (first and/or second) even when movable is not detachable from the handle when inserted in the corresponding hole.
Number | Date | Country | Kind |
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PCT/EP2014/054008 | Feb 2014 | WO | international |
This application is a continuation application of U.S. application Ser. No. 14/762,057, filed Jul. 20, 2015, which is a national stage application of International Application No. PCT/EP2012/064805, filed on Feb. 28, 2014, the entire contents of which are incorporated herein by reference.
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Number | Date | Country | |
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Parent | 14762057 | US | |
Child | 15642472 | US |