JP3877767B2 - Razor - Google Patents

Description

The present invention relates to a razor. The present invention particularly relates to skin contact member affecting the projection length of the hair in front of a razor blade to move the skin surface.
According to the present invention, there is provided a skin contact member for provided or in the razor unit, comprising a plurality of elements spaced from each other for skin contact member forms a passage for passing the hairs, each The element has a lateral portion that extends laterally into the passage, engages hair passing through the passage and pulls the hair away from the skin , the lateral portion being deflectable by elastic deformation, The hair can pass through the passage without the elements forming the passage being displaced to limit the adjacent passage.
In one embodiment of the skin contact member as described herein, it includes a plurality of upstanding elements a series of spaced apart forming a passageway for passing toward the rear from the front of the hair contact body therebetween, An elastic flexible lateral portion projects laterally from the element into the passage and engages the hair as the hair moves through the passage and pulls in a direction opposite to the direction of passage. Give power. In a preferred embodiment of the invention, the upright element consists of a substantially rigid parallel wall. These walls are slightly tapered in cross section and have flap-shaped elastic lateral projections that are inclined backwards away from the wall. A plurality of flaps are provided on each side of the wall, and the spacing between opposing pairs of free upstanding edges of the flaps in the passage gradually decreases, giving the hair more tensile force as the hair passes through the passage.
The present invention includes the razor blade device such as a replaceable shaving cartridge having the skin contact body shown in the embodiment of the present invention. The skin contact body forms a guard surface to come into contact with the skin in front of the blade edge while shaving. The skin contactor can also be placed between two blades in a blade device having one or more blades.
Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a schematic view showing a longitudinal section of a skin contact body according to an embodiment of the present invention.
2 and 3 show the respective deformations of the skin contact body of FIG.
4 and 5 are schematic views as seen from the same direction as in FIG. 1, showing different embodiments of the skin contact body according to the present invention.
FIG. 6 is a perspective view of a shaving cartridge incorporating a skin contactor according to the present invention.
Although the skin contact body shown in FIG. 1 is shown as a rectangular shape, this is not important and is a plastic construction that is integral with the elongated base 1. A series of uniformly spaced elements extending from the base upwards is adapted parallel passage 3 extending rearwardly of the contact body from the front from the wall 2 of the parallel confining therebetween. The top of the wall 2 constitutes the skin contact surface of the contact body, and the upper front edge of this wall is rounded off to improve comfort. Extending into each passage 3 from adjacent walls is a pair of laterally opposed flexible portions of wings or flaps 4. Each flap has an upstanding free end, is tapered in cross section from the wall to which the flap is attached, toward the free end , and is inclined rearward at an acute angle with respect to the wall. Due to this inclination , the pair of opposing flaps serve to feed the bristles through a guide or funnel towards the aperture formed between the free ends . The width of the opening between the pair of flaps of each passage gradually becomes narrower from the front to the back along the passage. Eventually the rearmost pair of flaps creates an aperture with a width A, which is smaller than the diameter of the bristle, so that the bristle is deflected backwards as it passes through the passage by the end of the flap, so that Subjected to a tensile force based on the friction of the rubbing flap. When the hair is pulled in this manner, the length of the hair protruding from the skin surface is temporarily increased at a position immediately before the front surface of the razor blade edge 6, and as a result, a tight razor can be formed. The tensile force imposed on the hair is determined by the flexibility of the flaps and the initial spacing A between these edges, which are selected so that the hair can be stretched sufficiently without causing discomfort. If the flaps are made of a sufficiently elastic force, the normal spacing between the flap edges can be very small or zero. The pitch B between the center lines of the passages is preferably as small as possible as long as the integrity of the structure is not impaired. When the skin from which the hair protrudes slides on the upper surface of the skin contact body, most of the hair is in the passage. Pass through. The height of the walls and flaps is not critical, but at least the hair diameter must be present.
The above-described skin contact body is shown as an exemplary embodiment of the present invention, and various modifications can be made without departing from the scope of the claims of the present invention. For example, in each passage, a flexible flap can be provided on the only wall confining the passage. For example, if a narrow contact is desired to be placed between two blades of a razor blade device, two or single pairs of flaps are provided in each passage.
In the modified skin contact body shown in FIG. 2, the parallel walls 12 forming the passages 13 are formed integrally with a bar or plate 10 extending along the front of the contact body, rather than being supported by the base. And a wall extends rearward from the plate. In other respects, the contact body of this embodiment may be the same as that described for the first embodiment. The wall 12 and the flap 14 extend about 0.1 mm higher than the height of the upper end of the bar 10.
The deformed skin contact of FIG. 3 has separate elements 20 that make each pair of lateral portions in the shape of a flexible resilient flap 24 that faces generally oppositely into the adjacent passage 23.
The flap which consists of an arrangement different from the embodiment of FIGS. 1 and 2 pulls the hair lightly in the same manner as the above-mentioned embodiment when the hair passes through the passage. During the individual elements 20 razor, but undergo elastic deformation to some extent backward force exerted by the skin, this is not critical, it does not impair the hair pulling force of the flap as this has occurred.
The skin contact body shown in FIG. 4 is made of an elastomer, is integrally formed with the base 31, and has a substantially parallel wall 32 upstanding from the base. This wall has a straight central part, and has a wedge-shaped lateral part which is formed integrally with the central part on both sides of the wall and forms an upright lateral belly inclined laterally. A taper from the front to the back of the member is formed. The bristles passing through the passages can deflect the side walls of the passages based on the elastic compression properties of the material forming the lateral portion of the wall 32, and the bristles can be used to pass the rear end of the passages although the passage width is smaller than the bristle diameter A light tensile force is applied to pull the hair from the skin passing through and sliding on the surface formed by the upper surface of the wall 32.
FIG. 5 shows another embodiment of the present invention in which the passage 43 is formed by an upstanding element 40 integral with the base 41, the element 40 being in the form of a column 42 with a lateral protrusion in the form of a flap 44. ing. The flaps are arranged so as to be paired in opposite directions, and the flaps are elastically deflected by the bristles passing along the passage 43 by the columns 42 that receive the screw bending force around the axis. In this way, the flap acts to give a light tensile force to the hair. The element 40 of this embodiment can bend backwards under the force applied during the razor, but as described with respect to the embodiment of FIG. 3, such bending force is not necessarily important and pulls the hair of the element. It does not reduce the effect.
In the embodiment of FIGS. 1-3, it is not necessary to arrange the flaps in pairs in opposite directions. If the flap edges are positioned so that they are offset along the passageway, the desired tensile force is still applied to the hair passing along the passageway. Similarly, it is not important that the flaps in these embodiments are inclined rearward and substantially perpendicular along the length of the passage, or inclined forward relative to its free edge.
FIG. 6 shows a razor cartridge provided with a skin contactor 50 according to the present invention. Although the skin contact body 50 is shown only schematically, any one particular form of the embodiment of FIGS. 1 to 5 can be employed. Other than the skin contact body 50, the cartridge has a known structure. As shown, there are two parallel blades 51 and 52 supported by a frame between the guard and the cap. Although the skin contact body 50 is disposed immediately before the cutting edge of the first blade 51, the skin contact body according to the present invention is additionally provided between the blades in order to pull the hair directly in front of the second blade 52. Or it can be installed alternatively.

Claims (9)

A plurality of elements spaced apart from one another to form a passage for the passage of hair, said elements extending laterally within said passage, engaging said hair passing through said passage and pulling said hair away from the skin; A skin contact for a razor device having a transverse portion, wherein the transverse portion is deflectable, and the elements forming the passage are displaced so that the hair can pass through without restricting adjacent passages. The skin contact body according to claim 1, wherein the element is formed integrally with a support body. The skin contact body according to claim 2, wherein the support is a base, and the element extends above the base. The element is composed of substantially mutually parallel walls, form a wedge in which the lateral portion provided to form a side surface inclined with respect to the wall wall, the material of said lateral portions allow the deflection The skin contact body according to any one of claims 1 to 3, wherein the skin contact body is elastically compressible . It said lateral portions, the skin contacting member according to any one of claims 1 to 3 consisting of lateral projections with elastic flexibility on the device. During shaving, in contact with skin in front of the blade to move the skin surface, includes an elongated skin contacting member extending parallel to said blade, said skin contact member is a series of having a strong central wall portion and a elastic lateral parts is formed by a plurality of elements, said plurality of passages bristles are arranged so as to pass between each other the central wall portion of the element is formed, the lateral force of the central wall portion to deflect this applied without also displaced so as to limit the adjacent passage, the transverse portion has a free end wall upstanding disposed within and passage extending into the passage from the central wall portion, said lateral portions extend opposite each other from the adjacent central wall portion facing one another to form an open area for hair passing between Oite free end walls to each other in each passage, transverse portion adjacent and along path formed apart from each other, passage And hair and resiliently engaging the passing give a light pulling force to the hairs when skin hair that protrude slides on the upper surface of the skin contact member, and the inlet of the front edge of each passage skin contact member The width of the open area in each passage formed between at least a pair of free end walls extending from the blade to the rear end adjacent to the blade and behind each inlet has a minimum value less than the bristle diameter. and, and the free end wall of the lateral portions adjacent when passing through the passage hair, is freely resiliently moved in a direction away laterally from the center line of the passage to passage, whereas, the central wall portion substantially without being deflected laterally towards the adjacent passageway, hair through the passageway is gripped is extended from the skin between transverse portion adjacent, released on the rear end portion of the skin contact member A razor that causes the hair to face the blade before it is returned to the skin. It said elastic lateral parts, razor according to claim 6 having a free edge toward and upwardly projecting into the passage. The razor according to claim 6, wherein the skin contact body occupies a guard position in front of the first blade. Comprising a plurality of generally parallel blades to each other, said skin contacting body razor according to claim 6, which is disposed between the first and second blade.

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