The invention relates to razor handles and razors.
More precisely, the invention relates to a razor handle comprising an elongated body extending in a longitudinal direction, said elongated body having an outer surface and being provided with a cavity opening on said outer surface and extending between a first end and a second end, said razor handle further comprising a first insert.
US 2010107415 discloses an example of such a known razor handle comprising a shaving lubricant dispenser and asphere movably positioned in a cavity that stores a shaving lubricant, the sphere being adapted for moving the shaving lubricant from the cavity out of the razor handle. Besides, the sphere moves and rotates in tandem with a pusher and a slider both provided on the razor for pushing the shaving lubricant.
However, the insert does not change the relative weight of the razor handle according to the shaving position.
One objective of the present invention is to avoid this drawback. Another objective is to improve the shaving with a razor handle according to the invention.
These objectives are solved by the fact that, according to the invention, the cavity has a shape allowing 30 the first insert to move freely within the cavity between the first and second ends of said cavity.
Thanks to the insert, the razor handle can have a proper weight improving the handle's effect on shaving depending on its relative orientation within the cavity. The weight of the handle perceived by the user thus varies according to the shaving positions.
Furthermore, it is possible to increase significantly the weight of the razor handle thanks to the insert. As a consequence, it is unnecessary to increase the volume of the razor handle to this end. For instance, in the case that the handle is made of a plastic material, less plastic will be required to attain a greater weight due to the presence of the insert within the cavity.
In advantageous embodiments of such a razor handle, one and/or the other of the following features may be incorporated:
The invention also concerns a razor comprising such a razor handle and a shaving cartridge connected to said 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 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 2, extending longitudinally from the rear end 2B to an end near the front end 2A.
The razor further comprises 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
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
The width W of the razor handle 2 may as well vary along the direction C but is preferably comprised between 10 mm and 25 mm, preferably about 20 mm. As depicted in
However, the smallest width W1 may be located elsewhere on the razor handle 2 depending on its shape.
The elongated body 4 has an enlarged part located in the vicinity of the rear end 2B of the razor handle 2 having a width W2 which is maximized.
The connecting means 5 can be integral with the elongated body 4. The connecting means 5 can comprise 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.
Besides, the razor handle 2 may comprise a lock and release mechanism. In particular, the arms 6 may be flexed by a user thanks to this lock and release mechanism to attach or release the shaving cartridge 3 from the razor handle 2.
As depicted on
The elongated body 4 has an outer surface 4E. More precisely, the elongated body 4 has an upper face 4A and a lower face 4B as depicted on
The elongated body 4 and the connecting means 5 can form a unitary element. The elongated body 4 and the connecting means 5 can be moulded out of a material during a single step of a manufacturing process. Preferably, the elongated body 4 and the connecting means 5 are moulded out of the same material. The material may be any mouldable material. Preferably, the material is chosen among the plastics, the metals, such as metal alloys, and the rubbers. For instance, the elongated body 4 and the connecting means 5 can be molded in a thermoplastic material, for instance in acrylonitrile butadiene styrene (ABS) or in polypropylene (PP).
The elongated body 4 further includes a cavity 9 which extends along the longitudinal direction C. The cavity 9 preferably extends between the upper face 4A and the lower face 4B of the elongate body 4. However, the cavity 9 may also extend between the lateral sides 4C, 4D of the elongated body 4. The cavity 9 may be a blind hole that opens on the outer surface 4E of the elongated body 4. In particular, the cavity 9 may be a blind hole that opens on the upper face 4A or on the lower face 4B.
The cavity 9 may also be a through hole as illustrated on
The cavity 9 extends in the longitudinal direction C between the first end 11 and a second end 12. More particularly, the cavity 9 opens all along the upper and lower faces 4A, 4B between the first and second ends 11,12. The first end 11 can be located in the vicinity of the front end 2A. The second end 12 can be located in the vicinity of the rear end 2B. The ends of the upper and lower openings 10A, 10B are located respectively at the first and second ends 11, 12. The ends of the openings 10A, 10B can have rounded shapes as it can be seen on
The cavity 9 also has a width W9 measured in a direction perpendicular to the longitudinal direction C.
The width W9 may be comprised between 50% and 80% of the smallest width W1 of the elongated body 4. For instance, the width W9 can be comprised between 5 and 15 mm. For instance, the smallest width W1 may be of about 13 mm whereas the width W9 may be of about 10 mm.
As illustrated for instance on
The upper part 9A of the cavity 9 has a height H9A.
The height H9A is preferably constant. The height H9A may be comprised between 40% and 100% of the smallest height H1 of the elongated body 4. For instance, the height H9A is constant and is comprised between 5 and 15 mm. The lower part 9B of the cavity 9 has a height H9B. This height H9B can vary along the length of the cavity. The height H9B may be comprised between 0% and 80% of the smallest height H1 of the elongated body 4. For instance, the height H9B can be variable and can be comprised between 10 and 20 mm. For instance, the smallest height H1 may be of about 13 mm, whereas the height H9A may be of about 7 mm and the height H9B may be of about 6 mm.
The upper part 9A comprises a first interior wall 9E extending in the longitudinal direction C. The first interior wall 9E delimits an interior space of the upper part 9A of the cavity 9 comprised inside the elongated body 4 between the upper face 4A and the lower part 9B. The first interior wall 9E further comprises two semi-spherical shapes 9C, 9D at each end of the upper part 9A, and more precisely respectively at the first and second ends 11, 12. The two semi-spherical shapes 9C, 9D may have respectively a diameter D11, D12 measured in a direction perpendicular to the longitudinal direction C which is comprised between 40% and 80% of the smallest width W1 of the elongated body 4. For instance, the two semi-spherical shapes 9C, 9D respectively have a diameter D11, D12 comprised between 5 mm and 20 mm. For instance, the smallest width W1 may be 20 of about 13 mm whereas the diameters D11, D12 may respectively be of about 10 mm.
The lower part 9B comprises a second interior wall 9H extending in the longitudinal direction C. The second interior wall 9H is a straight wall which delimits an interior space of the lower part 9B of the cavity 9 comprised inside the elongated body 4 between the upper part 9A and the lower face 4B as illustrated on
The razor handle 2 further comprises a first insert 13. The first insert 13 is preferably made of a material chosen among the metals, the plastics and the rubbers. The first insert 13 can also be made of other materials such as glass, wood and/or ceramic. In particular, the first insert 13 is preferably made of a rigid material. The first insert 13 can be of a material having a density that is significantly different from the density of the material of the elongated body 4.
For instance, the density of the first insert 13 may be greater than the density of the material of the elongated body 4. The first insert 13 thus contributes to raise the weight of the razor handle 2 without significantly increasing the volume of the razor 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, the first insert 13 is only made of metal and does not comprise any other material.
The first insert 13 may have a spherical shape. The first insert 13 may have an ovoid shape. More generally, the first insert 13 may have any other shape such as a parallelipipedic, cubical or cylindrical shape. Preferably, the first insert 13 is a single sphere. Preferably, the size of the first insert 13, in the direction perpendicular to the longitudinal direction C, is smaller than the size of the cavity 9 in this same perpendicular direction. In the case the first insert 13 is a sphere, the first insert 13 may have a diameter D13 measured in a direction perpendicular to the longitudinal direction C which is comprised between 40% and 80% of the smallest width W1 of the elongated body 4.
The first insert 13 is located within the upper part 309A of cavity 9. The first interior wall 9E of the upper part 9A may have different shapes. As illustrated on
Preferably, less than 50% of the surface of the first insert 13 is encapsulated within the upper part 9A. In other words, the surface of the first insert 13 which is encapsulated cannot be directly touchable by the user as it is surrounded with the material of the elongated body 4. The first insert 13 can protrude from the outer face 4E of the elongated body 4 as illustrated on
The first insert 13 is freely movable within the interior space of the upper part 9A of the cavity 9. Also, the cavity 9 has a shape allowing the first insert 13 to move freely within the cavity 9 between the first and second ends 11, 12 of said cavity 9. By freely movable, it has to be understood that the first insert 13 is not attached to any damping means or shock absorber for instance that may restrain its movement within the cavity 9. It also has to be understood that the first insert 13 moves on its own or independently within the cavity 9.
Besides, it also means that the first insert 13 is movable according to the position of the razor handle 2. The first insert 13 can thus have a translation movement and/or a rotation movement within the upper part 9A of the cavity 9. For instance, in the case the first insert 13 is a sphere, the first insert 13 may slide and roll simultaneously within the upper part 9A of the cavity 9. According to this embodiment, the first interior wall 9E of the cavity 9 may be smooth so that the first interior wall 9E does not 10 prevent the first insert 13 from moving within the cavity 9.
In particular, the first interior walls 9E of the cavity 9 may comprise a layer of a second material different from the material of the elongated body 4, preferably chosen among the rubbers. This second material may thus facilitate the sliding movement of the first insert 13 within the upper part 9A of the cavity 9.
As being freely movable within the cavity 9, the first insert 13 has a position which can vary and which is comprised between the first and second ends 11, 12 along the longitudinal direction C. This position of the first insert 13 depends on the orientation of the razor handle 2.
The razor handle 2 defines a fixed straight horizontal line I when said razor handle 2 is placed on a flat horizontal surface. In this case, as illustrated on
Also, due to gravity, the position of the first insert 13 changes. More precisely, the first insert 13 is located at the first end 11 when the user holds the razor handle 2 downwards (the shaving cartridge 3 being directed downwards) as illustrated on
As an alternative, the movement of the first insert 13 may not be imposed by gravity. In this case, the position of the first insert 13 may be chosen by the user, so that the first insert 13 has preferred fixed positions for instance.
In addition, the first interior wall 9E of cavity 9 may be provided with zones having more frictional zones may represent the majority of the first interior wall 9E of the cavity 9 or, to the contrary, may be only localized to one or several specific locations within the cavity 9. In these zones, the first insert 13 may not move, or may move more slowly than in the rest of the cavity 9, between the first and second ends 11, 12. According to this alternative, the first insert 13, when located in the zones having more frictional resistance, may therefore need to be pushed by the user to move within the cavity 9. According to a specific embodiment, the first insert 13 may have a small diameter D13 and may be movable within the cavity 9 only for fine adjustment of the weight of the razor handle 2. The distance L11-12, which corresponds to the length of the cavity 9, may be of about 10% of the length L of the razor handle 2 in the longitudinal direction C in cases where the razor handle 2 is suited for minor adjustability. One example of using this minor adjustability embodiment can be for precision trimming. To the contrary, according to another embodiment when the razor handle 2 is used for body shaving for instance, more adjustability may be needed. In this case, the distance L11-12 may be greater, for instance of about 90% of the length L of the razor handle 2 in the longitudinal direction C.
In a second embodiment illustrated on the
Like the first insert 13, the second and third inserts 14, 15 may also move freely within the upper part 9A of the cavity 9. However, the second and third inserts 14, 15 preferably cannot move in any manner within the cavity 9. The second and third inserts 14, 15 can thus be fixedly maintained, advantageously secured, respectively at the first and second ends 11, 12 within the upper part 9A of the cavity 9 and can therefore not be detached by a user. As a consequence, the second and third inserts 14, 15 are not movable (i.e. immovable or motionless) relative to the cavity 9. More precisely, the second and third inserts 14, 15 cannot slide in the cavity 9 in order to change their positions within the cavity 9. In this second embodiment, only the first insert 13 moves freely towards either the second insert 14 or the third insert 15 within the upper part 9A of the cavity 9 depending on the orientation of the razor handle 2 as illustrated on
The first, second and third inserts 13, 14, 15 can be directly touchable by a user. Also, the non-movable second and third inserts 14, 15 thus form finger rest areas. In this manner, when a user wants to shave, he may position his fingers on the second and third inserts 14, 15, and preferably on the surfaces of the second and third inserts 14, 15 which are not encapsulated in the cavity 9.
Preferably, the second and third inserts 14, 15 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 second insert 14 on the upper face 4A. In another shaving position, the thumb and the index of the user can also rest on the third insert 15. In particular, the first, second and third inserts 13, 14, 15 can protrude from the outer face 4E of the razor handle 2.
The second and/or third inserts 14, 15 may not move on itself. In other words, the second and/or third inserts 14, 15 cannot slide or rotate on itself. However, according to another alternative of the invention, the second and/or third inserts 14, 15 may also be movable relative to its position. The material and the surface finish of the second insert 14 and/or third insert 15 is adapted to allow this movability, especially by rotation. For instance, the second insert 14 and/or third insert 15 may be a sphere that can rotate on itself about its own axis in all directions.
However, a user that may position one of his fingers on such a movable second insert 14 and/or third insert 15 will find difficult to shave as his finger(s) will constantly slip on the second insert 14 and/or third insert 15. Shaving will therefore be imprecise and uncomfortable. As a consequence, when the second insert 14 or the third insert 15 is movable, it cannot form fingers rest areas.
More precisely, when the second insert 14 is movable, it cannot be a finger rest area. Besides, the second insert 14 and/or third insert 15, even when movable, is not detachable from the razor handle 2.
The second and third inserts 14, 15 may be made of the 30 same material as the first insert 13 or may be made of a different one. For instance, the first insert 13 may be made of metal whereas the second and third inserts 14, 15 may be made of rubber or vice versa.
Besides, each of the first, second and third inserts 13, 14, 15 can also be made with several materials. In particular, the first, second and third inserts 13, 14, 15 can be covered with a layer of another material having a smooth surface. As an example, the first, second and third inserts 13, 14, 15 may be made of metal. The first, second and third inserts 13, 14, 15 can be covered by a layer of rubber. In this embodiment, the layer can have a surface finish comprised between 0.5 μm and 1.6 μm (roughness Ra).
The first and/or second and/or third inserts 13, 14, 15 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 second and third inserts 14, 15 affect the tactile sensing of the user when he positions his fingers on the second and third inserts 14, 15.
The material chosen may also have an impact on the sensing experience of the user when he positions his fingers on the second and/or third inserts 14, 15. 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 another alternative, the first, second and third inserts 13, 14, 15 may have the same shape or may have a 30 different one.
As depicted on the figures, each of first, second and third inserts 13, 14, 15 is preferably a single sphere.
According to this embodiment, the first, second and third inserts 13, 14, 15 have respectively diameters D13, D14, D15 that can be the same. However, each of the first, second and third inserts 13, 14, 15 may have different diameters D13, D14, D15. The second and third inserts 14, 15 may both have a diameter D14, D15 which is greater than the diameter D13 of the first insert 13. In particular, diameters D14, D15 of second and third inserts 14, 15 may correspond to the diameters D11, D12 of the semi-spherical shapes 9C, 9D of the first interior wall 9E. In this way, the second and third inserts 14, 15 remain maintained at the first and second ends 11, 12 of the cavity 9 whereas the first insert 13 can still move freely within the cavity 9. The first, second and third inserts 13, 14, 15 are spheres which have respectively a diameter D13, D14, D15 measured in a direction perpendicular to the longitudinal direction C which is comprised between 40% and 90% of the smallest width W1 of the elongated body 4. For instance, the smallest width W1 may be of about 13 mm whereas the diameter D13 of the first insert 13 may be of about 10 mm and the diameters D14, D15 of the second and third inserts 14, 15 may be of about 12 mm.
The first, second and third inserts 13, 14, 15 preferably are each a metal sphere. As another alternative, the first, second and third inserts 13, 14, 15 may be spheres having one hemisphere made of rubber and the other hemisphere made of plastic. Besides, each of the first, second and third inserts 13, 14, 15 may not be a complete sphere. Each of the first, second and third inserts 13, 14, 15 may only comprise a partial curved surface, especially a partial spherical surface.
The inclusion of first, second and third inserts 13, 14, 15 within the cavity 9 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.
Due to the first, second and third inserts 13, 14, 15, the elongated body 4 can 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 material, the razor handle 2 still has a good quality appearance and an optimized weight. Besides, the weight of the razor handle 2 is chosen to be localized in the front end 2A or in the rear end 2B of the razor handle 2, thus ensuring a good balance at all time of the razor handle 2. As a consequence, the movement of the inserts thus changes the center of weight of the razor handle 2.
Filing Document | Filing Date | Country | Kind |
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PCT/EP2014/066734 | 8/4/2014 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2016/019975 | 2/11/2016 | WO | A |
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International Search Report of PCT/EP2014/066734 dated Sep. 9, 2014. |
Number | Date | Country | |
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20170129116 A1 | May 2017 | US |