This application is a national stage application of International Application No. PCT/EP2014/054008, filed Feb. 28, 2014, the entire content of which is incorporated herein by reference.
The embodiments of the present invention relate to a razor handle.
In particular, 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 including a first insert and a second insert.
WO2008147133 describes an example of a 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 of 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 present invention is to avoid the aforementioned drawbacks. More specifically, one objective of the present invention is to facilitate the manufacture of the razor handle according to the present invention.
Another objective is to improve the shaving experience of the user while shaving.
Another objective is to avoid any inadvertent separation of the inserts provided on razor handle according to the present invention.
This problem is solved by the present invention in that the first and second inserts are respectively partially encapsulated within the first and second holes.
By providing 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, the inserts cannot be detached from the first and second holes; they especially cannot be detached from the hole by a user. Also, the razor handle has a better hold and an improved resistance.
By providing the inserts, the razor handle can also have a proper weight to promote a comfortable shaving experience. The inserts allow the razor handle to have a good balance regardless the shape of the handle.
Furthermore, the 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.
In other advantageous embodiments of the razor handle, at least one of the following features may be incorporated:
The present 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 present invention will become apparent from the detailed description of embodiments of the present invention, considered in conjunction with the accompanying drawings.
In the various figures, the same references can 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 also has an elongated body 4 for hand grasping the razor handle
The elongated body 4 extends longitudinally from the rear end 2B to a location near the front end 2A. The razor 1 further includes connecting means 5 in the continuation of the elongated body 4 up to the front end 2A of the razor handle 2. 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 connected to the shaving cartridge 3).
Referring to
In an embodiment of the present invention, the length L of the razor handle 2 is about 126 mm. The length L5 of the connecting means 5 is about 17 mm. The length L4 of the elongated body 4 is 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 between about 15 mm and about 25 mm, preferably about 20 mm. As depicted in
It can be seen on the upper and lower views of the razor handle 2, shown in
In a preferred embodiment of the present invention, the length LEp1 of the first enlarged part Ep1 is about 25 mm. The length LEp2 of the second enlarged part Ep2 is about 50 mm. The length LSp of the slim part Sp is about 25 mm.
The connecting means 5 are integral with the elongated body 4 and 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 shown in
Each arm 6 has on its upper face a plurality of small cavities 21, which 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.
The elongated body 4 has an outer surface 4E, and more precisely an upper face 4A and a lower face 4B (also shown in
The elongated body 4 and the connecting means 5 form a unitary element moulded out of a first material. The first material may be any moldable material. Preferably, the first material is chosen among a plastic or a rubber material. 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 elongate body 4. In other embodiments of the present invention, 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 shown in
The razor handle 2 further includes a first insert 11 and a second insert 12 located respectively within the interior space 9B, 10B of each of the 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 and the index resting 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 will be discussed further below, the second insert 12 may not be directly touched 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 can form a finger rest area since the second insert 12 supports the rib 14. In other embodiments of the present invention, the second insert 12 can 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 with a material chosen among a metal, a plastic, and a rubber material. In particular, the first insert 11 and/or the second insert 12 is preferably made with a rigid material having a density that is significantly different from the density of the first material 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 of the elongated body 4. The first and second inserts 11, 12 thus contribute to increasing the 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 include any other material.
The material chosen for the first insert 11 and/or the second insert 12 can also have an impact on the sensing 5 experience of the user when he positions his fingers on the first and second inserts 11, 12. For 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.
In alternative embodiments of the present invention, the first and second inserts 11, 12 may not be both necessarily of 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.
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. For example, the first and second inserts 11, 12 may be made of metal and covered by a layer of rubber. The layer can have a surface finish between about 0.5 pm and about 1.6 pm (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. The type of surface of the first and second inserts 11, 12 can affect the tactile sensing of the user when he positions his fingers on the first and second inserts 11.
In other alternative embodiments of the present invention, 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.
By providing the first and second inserts 11, 12, the elongated body 4 can therefore be made of 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, the razor handle 2 still has a good quality appearance and an optimized weight due to the first and second inserts 11, 12. The weight of the razor handle 2 is 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 parallelepipedic, cubical or cylindrical shape. 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. The first and second inserts 11, 12 may be made of the same material(s) or may be made of 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. The shape of the elongated body 4 preferably remains similar to the shape of an elongated body that would not include any inserts. As shown in
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 in
In one embodiment of the present invention, the first and second inserts 11, 12 are preferably maintained, or 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. The first and second inserts 11, 12 cannot move substantially in any manner in the first and second holes 9, 10. As a consequence, the first and second inserts 11, 12 are not substantially movable (i.e. immovable or motionless) respectively relative to the first and second holes 9, 10. The substantially non-movable first and second inserts 11, 12 thus form finger rest areas. More precisely, the first and second inserts 11 and 12 cannot substantially slide in their corresponding first and second holes 9, 10.
More particularly, as depicted in
In another embodiment of the present invention, the first insert 11 and/or the second insert 12 may be a sphere that can rotate 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 the first insert 11 is a sphere. The gap may be between about 0.005 pm and about 0.025 pm 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 movability, especially the rotation.
One among the first insert 11 and/or the second insert can be substantially immovable. In another embodiment of the present invention, 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 include 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 positions one of his fingers on a movable first insert 11 and/or second insert 12 may find difficulty shaving as his finger(s) may slip on the first insert 11 and/or the second insert 12. Shaving may therefore be imprecise and uncomfortable.
As a consequence, when the first or second insert 11, 12 is movable relative to corresponding first or second holes 9, 10, it cannot form fingers rest areas. More precisely, when the first insert 11 is movable, the first insert 11 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 proximate to 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 in
The distance L11-12 (shown in
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 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 be made with several different materials. For instance, the elongated body 4 may also be made with a layer of a second material different from the first material, preferably chosen among a plastic or a rubber material. The first material provides structural strength to the razor handle 2, while the second material provides the softness required for comfortable hand grasping and firm finger gripping in any shaving position.
As depicted in
The lateral sides 4C, 4D of the elongated body 4 include a plurality of smooth ribs 16 made of the second material. As shown in
As shown in
According to the present invention, the insert (first and/or second) can be movable or substantially immovable in its corresponding hole; 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. The insert (first and/or second), even when movable, is not detachable from the handle when inserted in the corresponding hole.
Filing Document | Filing Date | Country | Kind |
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PCT/EP2014/054008 | 2/28/2014 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2015/128000 | 9/3/2015 | WO | A |
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WO 9737819 | Oct 1997 | WO |
Entry |
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International Search Report of PCT/EP2014/054008 dated Nov. 5, 2014. |
Number | Date | Country | |
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20170165854 A1 | Jun 2017 | US |