Patent Description:
The embodiments described in the following disclosure relate to a razor cartridge, a method, which is not part of the claimed invention, for manufacturing a razor cartridge, a shaving razor assembly and an associated kit of parts.

Razor cartridges (also known as safety razor cartridges) are permanently or removably attached to a razor handle that, in use, is oriented in shaving direction. Razor cartridges typically comprise one or more cutting members, each supporting a blade, mounted perpendicular to the shaving direction. Razor cartridges are also typically provided with a guard (at a leading longitudinal side of the razor cartridge in the shaving direction) and a cap (at a trailing longitudinal side of the razor cartridge in the shaving direction). A skin care element is also often provided at the trailing longitudinal side. In use, a user holds the razor handle in the shaving direction and brings the razor cartridge into contact with a portion of skin defining a shaving plane.

Typically, the shaving plane is defined as the tangential line intersecting the first and second skin contact points of, for example, cutting edges of the shaving head. More simply, the shaving plane may be approximated as a line between the highest points on the skin-contacting surfaced of a razor cartridge - for example, the flat plane between the top of a guard and the top of a cap of the shaving head. Movement of the razor handle causes the blades of the razor cartridge to be moved across the shaving plane in the shaving direction, enabling the blades to remove unwanted hair.

<CIT> discloses a razor cartridge having a non-cutting element disposed anywhere within a blade array between a guard and a cap and/or in a blade position of a frame providing skin/hair management.

<CIT> describes an isolated blade that is mounted on the underside of an upper blade attachment portion of the blade support, with the sharpened edge of the blade protruding beyond the end of the upper blade attachment portion of the blade support. The leading edge of the upper blade attachment portion of the blade support is rounded and the upper blade attachment portion can therefore act as a guard to increase shaving comfort.

<CIT> discloses a razor cartridge comprising three blades mounted on an upper portion of the respective blade support, wherein the distance between the first and second blade has a value between <NUM> and <NUM>.

<CIT> describes a razor cartridge that includes a plurality of blades disposed in a housing between a guard and a cap. The blades have substantially parallel sharp cutting edges. A distance between the first and second cutting edges is greater than a distance between the second and third cutting edges.

The performance of razor cartridges may be further improved.

According to a first aspect, a razor cartridge according to claim <NUM> is provided.

In embodiments, a leading inter-blade span that is closer to the leading longitudinal side of the razor cartridge than a trailing inter-blade span is smaller than the trailing inter-blade span that is closer to the trailing longitudinal side of the razor cartridge than the leading inter-blade span.

In embodiments, a leading inter-blade span that is closer to the leading longitudinal side of the razor cartridge than a trailing inter-blade span is greater than the trailing inter-blade span that is closer to the trailing longitudinal side of the razor cartridge than the leading inter-blade span.

According to an example, a razor cartridge is provided. The razor cartridge comprises three or more substantially parallel cutting members disposed between a leading longitudinal side, and a trailing longitudinal side of the razor cartridge in a shaving direction of the razor cartridge.

Each of the cutting members comprises a blade support comprising a blade mounting portion disposed on an inner surface of the respective blade support that, in use, faces away from a shaving plane SH (shaving surface), and a blade attached to the blade mounting portion.

The cutting members are disposed to define a plurality of inter-blade spans between cutting edges of the blades.

In an example, a leading inter-blade span that is closer to the leading longitudinal side of the razor cartridge is different to a trailing inter-blade span that is closest to the trailing longitudinal side of the razor cartridge.

A leading inter-blade span that is closest to the leading longitudinal side of the razor cartridge is smaller than a trailing inter-blade span that is closest to the trailing longitudinal side of the razor cartridge.

In other examples, a leading inter-blade span that is closer to the leading longitudinal side of the razor cartridge is greater than a trailing inter-blade span that is closest to the trailing longitudinal side of the razor cartridge.

According to a second aspect, which is not part of the currently claimed invention, a method of manufacturing a razor cartridge comprises:.

The cutting members define a plurality of inter-blade spans between cutting edges of the blades.

A leading inter-blade span that is closer to the leading longitudinal side of the razor cartridge is different to a trailing inter-blade span that is closer to the trailing longitudinal side of the razor cartridge.

According to a third aspect, there is provided a shaving razor assembly comprising:.

In an example, the razor handle may be re-used by changing the razor cartridge, or the razor cartridge is fixedly attached to the razor handle, via a pivotable, or non-pivotable connection.

According to a fourth aspect, there is provided a kit of parts, comprising a razor handle and a razor cartridge holder comprising a plurality of razor cartridges according to the first aspect.

Further embodiments are presented in the dependent claims, and the detailed description, to which the reader should now refer.

An effect of a razor cartridge according to these aspects is that when shaving, the blade supports of the cutting members are brought into contact with the skin (shaving plane) in addition to the cutting edges of the blade. Therefore, the number of contact points between the razor cartridge and the skin is increased, up to being doubled. The amount of pressure exerted on a portion of skin by each cutting edge is significantly reduced, leading to fewer incidents of skin injury ("nicking") and a more comfortable shave.

The blade is mounted on an inner surface of the blade support to enable the blade support to simultaneously contact the skin at the same time as the cutting edge of the blade, in use. This means that the portions of the blade support in contact with the skin reduce or minimize the "skin bulge", thus reducing the risk of nicks and cuts occurring.

Another effect is that durability of the blades is prolonged, since less pressure is applied to the skin thus resulting in a less aggressive shaving and therefore the blades wear at a lower rate.

The provision of a smaller to larger variable inter-blade span from the leading longitudinal side to the trailing longitudinal side of the razor cartridge means a less aggressive and smoother shaving, thus resulting in the user suffering from fewer nicks and cuts and skin irritation. A smaller inter-blade span towards the leading longitudinal side of the razor cartridge enhances glideness of the shaver along the shaving plane and improves the support of the skin at the leading edge of the razor cartridge with the same number of blades as compared to a conventional razor.

This makes the razor cartridge suitable for frequent (daily) shavers. Daily shavers do not need to remove such a large amount of hair compared to infrequent shavers. Therefore, a large gap in proximity to the leading edge of the razor cartridge is less important for frequent shavers. However, the advantages of the skin support concept using blades mounted on an inner surface of the blade support still enables a shave having better glideness. And this effect is provided at the same time that the rinsability of the cartridge is enhanced owing to the increased gap in proximity to the trailing edge of the razor cartridge.

In an example where the leading inter-blade span between cutting edges towards the leading longitudinal side of the razor cartridge is greater than a trailing inter-blade span between cutting edges towards the trailing longitudinal side of the razor cartridge, another effect is that the larger gap between the cutting members at the leading longitudinal side of the razor cartridge enables more removed hair to pass through, and a greater flow of debris and foam during shaving as well as a greater degree of rinsability. Infrequent razor users wait several days between shaving, leading to a requirement for a greater degree of hair removal compared to the case of a user who shaves daily. Therefore, a razor cartridge according to this example is better adapted to users who shave less frequently, because the increased inter-blade span (or spans) towards the leading longitudinal edge of the razor cartridge can accommodate the denser and/or longer hair clippings characteristic of users who shave less frequently.

An inter blade span is defined, in an example, with reference to a plane intersecting the cutting edges of at least two blades of a razor cartridge. A line between the cutting edges of first and second blades and perpendicular to the first and second cutting edges is an inter blade span (or space). In the following application, the fact that a first inter-blade span and a second inter-blade span are "different" to each other means that a first distance defining the first inter-blade span in the transverse direction of the razor cartridge, and a second distance defining the second inter-blade span in the transverse direction of the razor cartridge have a different length. In other words, the first distance is, in an example, greater than the second distance. In another example, the first distance is smaller than the second distance. In other words, a first distance defining the parallel separation of the first inter-blade span is greater than, or smaller than, a second distance defining the parallel separation of the second inter-blade span.

In general, a razor cartridge according to the present specification provides a razor cartridge wherein each of the cutting members comprises a blade support comprising a blade mounting portion disposed on an inner surface of the respective blade support that, in use, faces away from a shaving plane, where the inter-blade spacing may be customized to provide a range of razor cartridges to suit a variety of shaving habits.

Other characteristics will be apparent from the accompanying drawings, which form a part of this disclosure. The drawings are intended to further explain the present disclosure and to enable a person skilled in the art to practice it. However, the drawings are intended as nonlimiting examples. Common reference numerals on different figures indicate like or similar features.

<FIG> is a perspective view of a shaving razor assembly <NUM> according to an aspect. The shaving razor assembly comprises blades which are not driven by a motor. The shaving razor assembly <NUM> comprises a handle <NUM> extending in a handle direction H between a proximal portion <NUM> and a distal portion <NUM> of the handle <NUM>. A razor cartridge <NUM> is mounted at the distal portion <NUM> of the handle <NUM>. The razor cartridge <NUM> will be presented in more detail following discussion of the shaving razor assembly <NUM>.

The mounting of the razor cartridge <NUM> to the distal portion <NUM> of the handle <NUM> in the illustration is via a pivotable bearing member 8a enabling a frame of reference of the handle <NUM> to vary relative to a frame of reference of the razor cartridge <NUM>, to thus enable the angle of the razor cartridge against the skin of a user to vary and adapt to changes during use.

In particular, the razor cartridge <NUM> pivots relative to the handle <NUM> about the longitudinal axis L of the razor cartridge <NUM>, in use. The pivoting enables the user to adapt to contours of the body, for example. The longitudinal axis L of the razor cartridge <NUM> is substantially perpendicular to the shaving direction along the handle <NUM>. Another example of a connection mechanism for connecting the razor cartridge <NUM> to the handle <NUM> is discussed in <CIT>. Another alternative is a razor cartridge <NUM> that may pivot relative to a second pivot axis (a rocking axis), substantially perpendicular to axis L. In examples, the pivotable bearing member 8a may be omitted (not illustrated) and the handle <NUM> provided as an integrally connected part of the support of the razor cartridge <NUM>. In an example, the pivotable bearing member 8a may further comprise, or be replaced by, a release mechanism 5a, 5b, enabling rapid release of an exhausted razor cartridge from the handle <NUM>.

In an example, the handle <NUM> and the support of the razor cartridge <NUM> are integrally formed with a pivotable bearing member (not illustrated) such as a plastic spring member.

In an example, the handle <NUM> is provided with a handle grip <NUM> formed of a rubber, or rubber-like material to improve gripping friction. In an example, the handle is provided with a thumb-rest to enable a more secure grip of the handle <NUM> by a user.

<FIG> are schematic side views of a portion of a prior art razor cartridge in use. In conventional razor cartridges with three or more blades, the inter-blade span is measured to be constant in a range of about <NUM> to <NUM>, and the razor blade is mounted on the top of the blade support.

The phrase "top of the blade support" for the purposes of this specification means a side of a blade support of a razor cartridge that is closest to a shaving plane SH (skin) of a user when the razor cartridge is in use, as illustrated in <FIG>. When a razor cartridge with such top-mounted cutting members is used, aggressive shaving may result in an increased degree of nicks and cuts and an increased sense of irritation, because the shaving plane SH (skin) is exclusively supported by the cutting edges <NUM> of the blades on the blade support. This provides the skin with a relatively small surface to be supported on during shaving, and causes an increased degree of "bulging" <NUM> of the shaving plane SH (skin) between the inter-blade gaps.

<FIG> is a schematic side view of a portion of a prior art razor cartridge in use. To reduce the effect of skin bulging <NUM>, the inter-blade span IBS can be reduced, as illustrated in <FIG>. However, this results in a reduced gap for rinsing, and debris such as foam or hair can easily block a gap having a narrow inter-blade span. A greater blade density (number of blades in the same-sized cartridge) is also required when the IBS between all blades is reduced.

According to a first aspect, there is provided a razor cartridge <NUM> comprising: three or more substantially parallel cutting members disposed between a leading longitudinal side <NUM> and a trailing longitudinal side <NUM> of the razor cartridge in a shaving direction of the razor cartridge.

Each of the cutting members comprises a blade support comprising a blade mounting portion disposed on an inner surface of the respective blade support that, in use, faces away from a shaving plane SH, and a blade attached to the blade mounting portion.

The cutting members are disposed to define a plurality of inter-blade spans between cutting edges <NUM> of the blades.

A leading inter-blade span that is closest to the leading longitudinal side <NUM> of the razor cartridge is different to a trailing inter-blade span that is closest to the trailing longitudinal side <NUM> of the razor cartridge.

In other words, according to different examples, the leading inter-blade span is smaller than, or greater than, the trailing inter-blade span. The following disclosure discusses different examples in which the leading inter-blade span is greater than, or smaller than, the trailing inter-blade span.

<FIG> is a perspective partial exploded view of a razor cartridge <NUM> according to an example of the first aspect in which the leading inter-blade span is greater than the trailing inter-blade span. "Partial exploded view" means that some minor components of the razor cartridge <NUM> have been omitted from the exploded view to aid clarity of the drawing.

The shaving direction S is depicted in <FIG> using arrow S. In use, the razor cartridge <NUM> contacts a shaving plane SH (not shown in <FIG>), and is translated across the shaving plane SH in the direction of arrow S.

A frame <NUM> may be fabricated partially or completely of synthetic materials, such as plastic, resin, or elastomers. The frame <NUM> comprises a platform member <NUM> connectable to a handle <NUM> of a shaving razor assembly <NUM> either integrally, or by a connection mechanism such as a pivotable bearing member 8a or by an interconnecting member (not shown).

A guard member <NUM> is provided as a substantially longitudinal edge of the razor cartridge <NUM>. In use, the guard member <NUM> is the first portion of the razor cartridge <NUM> to contact uncut hairs, and it is thus located at a leading longitudinal side <NUM> of the razor cartridge <NUM>. The side of the razor cartridge <NUM> opposite to the leading longitudinal side of the razor cartridge <NUM> and opposite to the shaving direction is the trailing longitudinal side <NUM> of the razor cartridge <NUM>. The trailing longitudinal side <NUM> is thus the final portion of the razor cartridge <NUM> to contact the shaving plane SH, in use.

It will be noted that the terms "leading longitudinal side <NUM>" and "trailing longitudinal side <NUM>" are used to denote specific locations on the razor cartridge <NUM>, and do not imply or require the absence or presence of a particular feature. For example, a guard member <NUM> may in one example be located at the "leading longitudinal side <NUM>", and in another example a trimming blade (not shown in <FIG>) may be located at the "trailing longitudinal side <NUM>" in another example, but it is not essential that these locations comprise such features.

The guard member <NUM>, in an example, comprises an elastomeric member (not shown in <FIG>). In an example, the elastomeric layer comprises one or more fins extending longitudinally in parallel to the guard member <NUM> and substantially perpendicularly to the shaving direction. One purpose of such an elastomeric layer is, for example, to tension the skin prior to cutting.

The razor cartridge <NUM> may, in embodiments, further comprise a cap member at, or near to, the trailing longitudinal side <NUM> but this is not illustrated in the embodiment of <FIG> as an aid to clarity.

The razor cartridge <NUM> further comprises a group of cutting members <NUM> accommodated in a blade receiving section <NUM> of the frame <NUM>. The group of cutting members <NUM> comprises a plurality of cutting members 28a-d. The group of cutting members <NUM> is disposed in the frame <NUM> longitudinally and parallel to the shaving direction SH such that in use, blades of the cutting members 28a-d contact a shaving plane SH and cut hair present on the shaving plane SH as the razor cartridge <NUM> is moved across the shaving plane SH in the shaving direction S. The particular design of the group cutting members <NUM> will be discussed in detail subsequently.

In an example, a razor cartridge is provided with three cutting members. In an example, a razor cartridge is provided with four cutting members. In an example, a razor cartridge is provided with five cutting members. In an example, a razor cartridge is provided with six cutting members. In an example, a razor cartridge is provided with seven or more cutting members.

The group of cutting members <NUM> defines a plurality of substantially parallel inter-blade spans. The number of inter-blade spans is one fewer than the number of cutting members.

The frame <NUM> further comprises first retainer <NUM> and second retainer <NUM> configured to hold the razor blades within razor cartridge <NUM> housing. The frame <NUM> further comprises first <NUM> and second <NUM> side portions. When the razor cartridge <NUM> is in an assembled state, the first and second side portions <NUM>, <NUM> are configured to fixedly confine the longitudinal ends of the guard member <NUM>, a cap member <NUM> (if present, not shown in <FIG>) and the group of cutting members <NUM>. The first side retainer <NUM> and second retainer <NUM> may comprise, for example, plastic, an elastomer, or a metal material and furthermore may be of a different shape to that illustrated.

Although not illustrated, a pivotable bearing member 8b may, in an example be provided on the side of the razor cartridge <NUM> configured to connect to a pivotable handle <NUM>. Such a pivotable bearing member 8b, in an example, comprises two or more shell bearings configured to connect to the pivotable bearing member 8a of the handle <NUM>.

The cutting members comprised in the group of cutting members <NUM> are disposed in the razor cartridge such that two cutting edges <NUM> comprised, respectively, on the two foremost (nearest to the leading side of the razor cartridge) cutting members of the group of cutting members <NUM> define a leading inter-blade span that is closest to the leading longitudinal side <NUM> of the razor cartridge <NUM> and that is greater than a trailing inter-blade span defined between the two cutting edges that are closest to the trailing longitudinal side <NUM> of the razor cartridge in the variant illustrated in <FIG>. The inter-blade spans are illustrated further in <FIG> and discussed subsequently. In further, non-illustrated embodiments, a leading inter-blade span that is closest to the leading longitudinal side <NUM> of the razor cartridge <NUM> is smaller than a trailing inter-blade span defined between the two cutting edges that are closest to the trailing longitudinal side <NUM> of the razor cartridge.

The each cutting member in the group of cutting members <NUM> comprises a longitudinal blade support <NUM>. A longitudinal blade is mounted on the blade support <NUM>. The cutting edge <NUM> of a cutting member 28a-d is oriented forward in the direction of shaving S. The blade support <NUM> of a cutting member 28a-d is an elongated, bent piece of rigid material. In an example, the blade support <NUM> is a metal such as austenitic stainless steel.

Each cutting member in the group of cutting members <NUM> is, in an example, resiliently mounted in a blade receiving section <NUM> of the razor cartridge <NUM>. The blade receiving section <NUM> comprises a longitudinal space in the razor cartridge <NUM> that is sized to accommodate the group of cutting members <NUM>. At least one cutting member of the group of cutting members <NUM>, up to all cutting members in the group of cutting members <NUM> may be resiliently mounted in the blade receiving section <NUM>. In the illustrated example of <FIG>, the transverse inner sides of frame <NUM> comprise a plurality of holding slots <NUM>. Each holding slot <NUM> on the transverse inner sides is configured to accept and retain one side of a blade support <NUM> of a cutting member of the group of cutting members <NUM> so that the cutting members of the group of cutting members <NUM> are held in the blade receiving section <NUM> with a substantially parallel inter-blade span. Therefore, as many holding slots <NUM> are provided in each transverse inner side of frame <NUM> as there are blade support members.

Between the blade receiving section <NUM> and the handle (in a part adjacent to a handle <NUM> connection, for example) there are, in examples, provided one or more cross members <NUM> that are integrally formed with the frame <NUM>. The cross members <NUM> may comprise a plurality of blade support guides <NUM> provided as a plurality of protuberances aligned with the holding slot <NUM> on the transverse inner sides of the frame <NUM>. The blade support guides <NUM> function to regulate the parallel inter-blade span in a longitudinal direction.

As explained above, a razor cartridge <NUM> according to the first aspect has a variable inter-blade span IBS. Therefore, in the illustrated variant of <FIG>, the spacing of the blade supports <NUM> is progressively increased between the leading longitudinal side <NUM> and the trailing longitudinal side <NUM> of the razor <NUM> to generate the variable inter-blade span IBS. One alternative way to achieve this arrangement is to progressively increase the spacing between the holding slots <NUM> provided on the transverse inner sides in a transverse direction (y to -y) of the razor cartridge. The positioning and/or width of the blade support guides <NUM> is adjusted commensurately such that the group of inter blade spaces IBS between cutting edges <NUM> of the cutting members 28a-d is parallel. In another variant (not illustrated), the spacing of the blade supports <NUM> is progressively decreased between the leading longitudinal side <NUM> and the trailing longitudinal side <NUM> of the razor <NUM> to generate a variable inter-blade span IBS.

The razor cartridge <NUM> of <FIG> as comprises four resilient fingers 38a, 38b, 38c, 38d under the first retainer <NUM>. The razor cartridge <NUM> comprises four resilient fingers under the second retainer <NUM> that are in transverse corresponding alignment with the four resilient fingers 38a, 38b, 38c, 38d under the first retainer <NUM>.

In total, the eight resilient fingers each exert a bias force against respective cutting members of the group of cutting members <NUM> in the direction of the shaving plane SH such that the cutting members of the group of cutting members <NUM> are in a rest position, when assembled. In the rest position, the cutting edges <NUM> of the blades <NUM>, at each lateral end of the blades <NUM> near the first <NUM> and second <NUM> retainers, bear against corresponding stop portions, for example. In an example, the stop portions may be the first <NUM> and second <NUM> retainer.

Accordingly, the rest position of the cutting members 28a-d is well defined, enabling a high shaving precision. Of course, the illustrated biasing arrangement has many variations. For example, a further plurality of resilient fingers may be provided on one or more of the cross members <NUM>. In a simplified razor cartridge design (such as for low cost, disposable razors), the resilient fingers may be omitted. A skilled person will appreciate that the number of resilient fingers <NUM> to be provided is related to the number of cutting members 28a-d in the group of cutting members <NUM>, and that fewer or more than eight resilient fingers <NUM> can be provided.

<FIG> is a schematic cutaway side view of a razor cartridge taken from the embodiment of <FIG> along transverse axis P-Q illustrated by the dotted line in <FIG>. Where possible, like elements are denoted with like reference numerals.

In addition to the features illustrated in partial exploded view <FIG>, <FIG> further illustrates a longitudinal trailing assembly <NUM> that may, in some examples, be included as part of a razor cartridge <NUM> but is not essential.

In particular, the longitudinal trailing assembly <NUM>, in examples, comprises a longitudinal skin care element <NUM> (e.g. a lubricating strip) for applying a compound, such as a lubricating compound, to the shaving plane after the cutting edges <NUM> of the blades have passed over the shaving plane.

The longitudinal trailing assembly <NUM>, in examples, comprises a longitudinal trimming blade <NUM> disposed on the trailing longitudinal side <NUM> of the razor cartridge <NUM>. The trimming blade <NUM> may, for example, be used for trimming hairs that are awkward to reach using the blades <NUM> of the group of cutting members <NUM>, such as extraneous nasal hairs. In an example, the trimming blade <NUM> only extends across a proportion of the longitudinal direction of the longitudinal trailing assembly <NUM>, such as up to three quarters, up to one half, or up to one quarter.

As illustrated, the trimming blade <NUM> is mounted on a trimming blade support <NUM>. The assembly of the trimming blade <NUM> mounted on a trimming blade support <NUM> is, in an example, identical to the design of the blade receiving section <NUM>, blade support <NUM>, and blade <NUM> comprised in the group of cutting members <NUM> to reduce parts variation. Alternatively, the trimming blade <NUM> and trimming blade support <NUM> are produced to a different design to the design of the blade receiving section <NUM>, blade support <NUM>, and blade <NUM> comprised in the group of cutting members <NUM>.

For the purposes of this specification, the trimming blade <NUM> is not comprised within the group of cutting members <NUM> intended to contact the shaving plane. For the purposes of this specification, an inter-blade span is defined between cutting edges 30a-d of the blades 33a-d of the group of cutting members <NUM>, however a span between a cutting edge <NUM> of the trimming blade and one of the cutting edges 30a-d of the blades 33a-d of the group of cutting members <NUM> is not considered to be an inter-blade span.

In an example, the longitudinal trailing assembly <NUM> comprises a retractable cover <NUM> as a safety feature, and to keep the trimming blade <NUM> sharp when not in use.

In common with the frame <NUM> of the razor, the longitudinal trailing assembly <NUM> and/or the retractable cover <NUM> may be provided as a plastic or resin material. In an example the longitudinal trailing assembly <NUM> is formed integrally with the frame <NUM>. In an example, the longitudinal trailing assembly <NUM> is glued or ultrasonically welded to the frame <NUM>, for example. In an example, a razor cartridge <NUM> is provided without a longitudinal trailing assembly <NUM> such that the trailing edge of the frame <NUM> in the shaving direction is the trailing longitudinal side <NUM> of the razor cartridge <NUM>. In an embodiment where the razor cartridge <NUM> comprises the longitudinal trailing assembly <NUM>, the trailing longitudinal side <NUM> of the longitudinal trailing assembly <NUM> in the shaving direction is considered to be the trailing edge of the frame <NUM> in the shaving direction.

<FIG> illustrates a side view of the holding slots <NUM> provided in the first <NUM> and second <NUM> retainer for holding the group of cutting members <NUM>. The plurality of blade support guides <NUM> and the plurality of resilient fingers <NUM> shown in <FIG> is not shown in the projection of <FIG> to aid clarity.

<FIG> illustrates a progressively increasing span in the longitudinal direction between the succession of holding slots <NUM> for holding the group of cutting members <NUM> provided in the first <NUM> and second <NUM> side portions, in the direction from the leading longitudinal side <NUM> to the trailing longitudinal side <NUM>.

Of course, the provision of a succession of holding slots <NUM> in the first <NUM> and second <NUM> retainers to support the cutting members of the group of cutting members <NUM> is not essential. The group of cutting members <NUM> could also be supported using a plurality of blade support guides <NUM> (protuberances) positioned on one or more cross members <NUM>, for example, where the plurality of blade support guides <NUM> provide a progressively increasing inter-blade span in the longitudinal direction from the leading longitudinal side <NUM> to the trailing longitudinal side <NUM> of the razor cartridge <NUM>. In an example, a plurality of blade support guides <NUM> and a succession of holding slots <NUM> may be used in combination to provide progressively increasing span in the longitudinal direction between the leading and the trailing side of the razor cartridge.

<FIG> is a duplicate of the schematic cutaway side view of the razor cartridge <NUM> shown in <FIG> that has been annotated to denote inter-blade spacing. The longitudinal line on the internal leading longitudinal wall of the blade receiving section <NUM> that is closest to a shaving plane SH in use serves as an origin O for the purposes of the present definition.

A leading blade 33d to frame <NUM>, span <NUM> is the transverse span (substantially aligned with the shaving direction S) that is perpendicular to the longitudinal orientation of the blades of the group of cutting members <NUM> that spans the space between the internal leading longitudinal wall of the blade receiving section <NUM> that is closest to a shaving plane SH in use (the origin) and the cutting edge 30d of the leading blade of the group of cutting members <NUM>.

A leading inter-blade span <NUM> that is the closest inter-blade span to the leading longitudinal side <NUM> of the razor cartridge is a transverse span (substantially aligned with the shaving direction S in use) that is substantially perpendicular to the longitudinal orientation of the blades of the group of cutting members <NUM>. The leading inter-blade span <NUM> begins at a point on cutting edge 30d and ends on to a corresponding point on the cutting edge 30c of the first intermediate blade 33c.

A first intermediate inter-blade span <NUM> is a transverse span (substantially aligned with the shaving direction S in use) that is substantially perpendicular to the longitudinal orientation of the blades of the group of cutting members <NUM>. The first intermediate inter-blade span <NUM> begins at a point on cutting edge 30c and ends on a corresponding point on the cutting edge 30b of the second intermediate blade 33b.

A trailing inter-blade span <NUM> is a transverse span (substantially aligned with the shaving direction S in use) that is perpendicular to the longitudinal orientation of the blades of the group of cutting members <NUM>. The trailing inter-blade span <NUM> begins a point on cutting edge 30b and ends on a corresponding point on the cutting edge 30a of the blade 33a that is closest to the trailing longitudinal side <NUM> of the razor cartridge <NUM>.

A trailing blade to frame span <NUM> that is a transverse span (substantially aligned with the shaving direction S in use) that is perpendicular to the longitudinal orientation of the blades of the group of cutting members <NUM> the cutting edge 30a and a corresponding point on the internal trailing longitudinal wall of blade receiving section <NUM>.

Thus, the total span of the blade receiving section <NUM> corresponds to the sum of spans <NUM>, <NUM>, <NUM>, <NUM>, and <NUM>. In practice, the total span of the blade receiving section may be in the range of <NUM> to <NUM>.

As will subsequently be discussed, each blade mounting portion <NUM> is disposed on an inner surface <NUM> of a respective blade support <NUM> that, in use, faces away from a shaving plane SH. The cutting edge <NUM> extends forward from the front of the blade support <NUM>. However, the blade support <NUM> has a non-negligible thickness. For example, the blade support <NUM> has a thickness in the range <NUM> - <NUM>, and more specifically in the range <NUM> - <NUM>, and most specifically <NUM>.

Consequently, a non-negligible span defined as the transverse span (substantially aligned with the shaving direction S in use) that is perpendicular to the longitudinal orientation exists between each cutting edge <NUM> and the blade-mounting end of each blade support <NUM> of each cutting member of the group of cutting members <NUM>. This may be referred to as a cutting edge to blade span <NUM> of a respective cutting member. The edge support span may be derived using trigonometry based on the thickness of the blade support <NUM> and the tilt angle relative to the shaving plane of the blade receiving section <NUM> of the blade support <NUM>.

In an example, each blade support <NUM> of the group of cutting members <NUM> is identical and has the same thickness T2 and the same tilt angle A. In this case, the cutting edge to blade span 43a, 43b, 43c, and 43d are identical.

In an example, one or more of the cutting edge to blade spans 43a, 43b, 43c, and 43d are in the range <NUM> to <NUM>, and specifically <NUM>.

In an example, at least one blade support <NUM> of the group of cutting members <NUM> has a different thickness and/or tilt angle to the remainder of the blade supports <NUM>. In this case, at least one a cutting edge to blade span 43a will differ from the remainder. An effect is that individual cutting edge to blade spans 43a-43d may be tuned to provide further fine control over skin bulge effects. For example, the cutting edge to blade span 43a-43d may be designed to progressively increase or decrease. A leading blade to frame span <NUM> is a transverse span (substantially aligned with the shaving direction S in use) that is perpendicular to the longitudinal orientation of the blades of the group of cutting members <NUM>. The leading blade to frame span begins at a point on the internal leading longitudinal wall <NUM> that is, in an example, closest to the shaving plane SH. The leading blade to frame span ends at a corresponding point on the cutting edge 30d of the blade <NUM> of the leading cutting member 28d that is in an example, closest to the shaving plane SH.

In an example the leading frame to blade span <NUM> is <NUM> to <NUM>, and specifically <NUM>.

A trailing blade to frame span <NUM> is a transverse span (substantially aligned with the shaving direction S in use) that is perpendicular to the longitudinal orientation of the blades of the group of cutting members <NUM>. The trailing blade to frame span begins at a point on the cutting edge 30a of the blade 33a of the trailing cutting member 28a-d. The trailing blade to frame span <NUM> ends at a corresponding point on the internal trailing longitudinal wall <NUM> that is, in an example, closest to the shaving plane SH.

In an example, the trailing frame to blade span <NUM> is <NUM> to <NUM>, and specifically <NUM>. In an example, the leading blade to frame span <NUM> is greater than the trailing blade to frame span <NUM>. In an example, the leading blade to frame span <NUM> is smaller than the trailing blade to frame span <NUM>.

In an example, the leading blade to frame span <NUM> is substantially equal to than the trailing blade to frame span <NUM>. In an example, the leading blade to frame span <NUM> is greater than the leading inter-blade span <NUM>. In an example, the leading blade to frame span <NUM> is substantially equal to than the leading inter-blade span <NUM>. In an example, the leading blade to frame span <NUM> is smaller than to the leading inter-blade span <NUM>. In an example, the trailing blade to frame span <NUM> is greater than the trailing inter-blade span <NUM>. In an example, the trailing blade to frame span <NUM> is substantially equal to the trailing inter-blade span <NUM>. In an example, the trailing blade to frame span <NUM> is smaller than the trailing inter-blade span <NUM>. In an example, the first intermediate inter-blade span <NUM> and the second intermediate inter-blade span <NUM> are each substantially equal to the leading inter-blade span <NUM>. In an example, the first intermediate inter-blade span <NUM> and the second intermediate inter-blade span are each substantially equal to the trailing inter-blade span <NUM>. In an example, the first intermediate inter-blade span <NUM> is greater than the leading inter-blade span <NUM> and smaller than the second intermediate inter-blade span.

In an example, the second intermediate inter-blade span is equal to the trailing inter-blade span <NUM>. In an example, a leading inter-blade span that is closest to the leading longitudinal side of the razor cartridge is smaller than a trailing inter-blade span that is closest to the trailing longitudinal side of the razor cartridge.

<FIG> also illustrates a first debris run-off portion <NUM>, a second debris run-off portion <NUM>, and a third debris run-off portion <NUM>. The width of the debris run-off portions is defined by the relative spacing of the cutting members of the group of cutting members <NUM>. As illustrated, the first debris run-off portion <NUM> is narrower than the second debris run-off portion <NUM>, which in turn is narrower than the third debris run-off portion <NUM>. An effect of this is that, in use, a greater amount of hair clippings and foam can be removed via the debris run-off portions (such as debris run-off portion <NUM>) that are progressively closer to the trailing edge of the razor cartridge <NUM>.

Design of the size of the leading blade to frame span <NUM> and/or the trailing blade to frame span <NUM> is optional. The leading blade to frame span <NUM> may be larger than, equal to, or smaller than the leading inter-blade span <NUM>. The trailing blade to frame span <NUM> may be larger than, equal to, or smaller than the trailing inter-blade span <NUM>.

In an example, the leading inter-blade span <NUM> is smaller than the trailing inter-blade span <NUM>.

In an example, the first intermediate inter-blade span is equal to, or greater than, the leading inter-blade span. In an example, the first intermediate inter-blade span is equal to, or smaller than, the trailing inter-blade span. Although a razor cartridge with four blades 33a-d has been illustrated, the present specification also includes a razor cartridge comprising three blades, or greater than four blades. For example, five substantially parallel cutting members 28a-d may be disposed in a shaving direction of the razor cartridge <NUM>, wherein a second intermediate inter-blade span is defined adjacent to the trailing inter-blade span <NUM>. In an example, the first intermediate inter-blade span <NUM> and the second intermediate inter-blade span are each substantially equal to the leading inter-blade span. In an example, the first intermediate inter-blade span <NUM> and the second intermediate inter-blade span are each substantially equal to the trailing inter-blade span <NUM>. In an example, the first intermediate inter-blade span is greater than the leading inter-blade span <NUM> and smaller than the second intermediate inter-blade span. In an example, the second intermediate inter-blade span is equal to the trailing inter-blade span <NUM>. In an example, consecutive inter-blade spans of the razor cartridge successively increase between the leading longitudinal side <NUM> and the trailing longitudinal side <NUM> of the razor cartridge in the shaving direction.

In an example, each of the blade supports 32a-d comprises a shaving plane contact portion <NUM> that is configured, in use, to contact the shaving plane SH in addition to the cutting edges <NUM> of the blades, thereby reducing the pressure at each cutting edge contact point with the shaving plane. The pressure at the cutting edge contact points may therefore be reduced, compared to a conventional razor head, but glideness performance remains improved.

<FIG> is a perspective cutaway view of an end of a cutting member <NUM>. The cutting member <NUM> is a sub-assembly comprising a longitudinal blade <NUM> mounted on a longitudinal blade support <NUM>. The lower portion of the blade support <NUM> is suitable for being held in the holding slots <NUM> of the frame <NUM> of the razor cartridge. A bend <NUM> of the longitudinal blade support <NUM> defines an angle of approach of the longitudinal blade <NUM> to the shaving plane SH.

Turning briefly to <FIG>, the approach angle A defines the angle of declination of the inner surface of the blade support <NUM> from the reference of the blade support <NUM>. In an example, A is an acute angle, specifically between <NUM> and <NUM> degrees, more specifically <NUM> degrees.

Returning to <FIG>, the longitudinal blade <NUM> comprises a cutting edge <NUM> capable of cutting hairs. In an example, a rounded indent is cut from the sheet metal forming the blade support <NUM>.

Conventionally, a blade is mounted on the outer surface of a blade support, such that in use, no part of the blade support comes into contact with shaving plane SH.

Notably, in the present aspects and embodiments, a blade mounting portion <NUM> of the blade support <NUM> is disposed on an inner surface of the respective blade support that, in use, faces away from a shaving plane SH, and a blade attached to the blade mounting portion <NUM> as shown in <FIG>.

According to the present approach, the blade <NUM> is mounted on an inner surface of the respective blade support and projects from underneath the inner surface defining a cutting edge to blade span <NUM> between a cutting edge <NUM> of the blade and the end of the blade support <NUM> towards the shaving plane SH. In use, as the cutting member <NUM> contacts the shaving plane SH, both the cutting edge of the blade <NUM> and the end of the blade support <NUM> contact the shaving simultaneously, leading to a reduction in the force exerted on the shaving plane SH exerted by a single cutting edge, for example.

In other words, the position of a blade <NUM> on a blade support <NUM> when a cutting member 28a-d is mounted in the razor cartridge is defined by the fact that an imaginary tangent provided from the surface of the blade <NUM> that is directed away from the shaving plane SH does not pass through any point of the blade support <NUM> that the blade <NUM> is mounted on.

A further definition of the position of a blade <NUM> on the blade support is that when a cutting member 28a-d is mounted in the razor cartridge, an imaginary tangent provided from the portion of the blade <NUM> in contact with the blade mounting portion <NUM> that is directed towards the shaving plane SH in use passes through the blade support <NUM> that the blade <NUM> is mounted on.

<FIG> is a perspective view of a longitudinal blade support member <NUM> without a blade. It comprises substantially elongated flat lower portion <NUM>, a substantially elongated flat top side <NUM>, and a radius bend portion <NUM>. The radius bend portion <NUM> may have an inner radius of curvature RO that is more than <NUM>. The radius bend portion <NUM> may have an inner radius of curvature RO that is less than <NUM>. A minimum recommended inner radius of curvature RO of sheet metal should be at least the same as its thickness T. A safety factor of the thickness of the blade support <NUM> may be applied. By multiplying the safety factor with the preferable thickness of T (around <NUM>), the radius of curvature RO may be approximately <NUM>, specifically between <NUM> and <NUM>, and most specifically between <NUM> or <NUM>.

<FIG> is a schematic side view of a cutting member <NUM> comprising a blade mounting portion <NUM> disposed on an inner surface of a blade support that, in use, faces away from a shaving plane SH.

As discussed, the blade support <NUM> may be made from a flat sheet metal part which is bent before welding of the blade <NUM> on the inner surface <NUM> of the blade support <NUM>. The cutting member <NUM> thus comprises a blade <NUM> (razor blade).

The blade <NUM> has, in its flat portion, a thickness T1 about <NUM> (for example, between <NUM> and <NUM>). The total length L2 of the blade <NUM> between the cutting edge <NUM> of the blade <NUM> and the opposite back edge of the blade <NUM> is about <NUM> (for example, between <NUM> and <NUM>). The portion of the blade <NUM> that is in contact with the inner surface <NUM> of a blade support that, in use, faces away from a shaving plane SH has a length L1 that is about <NUM> +/- <NUM> long. In this way, a good retention of the blade on the underside of the blade support <NUM> (the inner surface of the blade support <NUM>) is ensured.

In an example, the height of the cutting member <NUM> is between <NUM> and <NUM>, particularly <NUM>.

In an example, the front end <NUM> of the blade support is rounded or chamfered to improve glideness properties of the cutting member.

In an example, the blade <NUM> may be positioned on the inner surface <NUM> of the blade support <NUM> to adjust the exposure E of the cutting edge <NUM> positively or negatively compared to the shaving plane SH. The exposure is a measure of how prominently the cutting edge <NUM> of a blade protrudes above or sinks below the end <NUM> of its blade support.

In an example, the blade <NUM> may be positioned to have an exposure relative to the shaving plane SH in the range -<NUM> to +<NUM>, specifically an exposure of about -<NUM>, - <NUM>, -<NUM>, -<NUM>, -<NUM>, -<NUM>, -<NUM>, -<NUM>, -<NUM>, -<NUM>, -<NUM>, -<NUM>, -<NUM>, -<NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, or <NUM>.

The length L3 of the cutting member <NUM>, between the cutting edge <NUM> and the outer face of the lower portion of the blade support <NUM> is about <NUM> (for example, between <NUM> and <NUM>).

The blade <NUM> is fixed on the inner surface <NUM> of the blade support by any known means, such as by laser spot welding. In examples, the blade <NUM> is fixed on the inner surface <NUM> of the blade support by a plurality of spot welds (for example, between ten and sixteen spot welds) distributed along the longitudinal dimension of the blade support <NUM>. Each of the spot welds may be performed on the inner face <NUM> of blade <NUM>. Alternatively, each of the spot welds may be carried out on the outer surface of the blade support <NUM>, or a mixture of the two.

<FIG> illustrates an example schematic side view of a group of cutting members <NUM> with inter blade spans in accordance with one exemplary implementation. Four razor blades of the razor cartridge according to an embodiment. <FIG> illustrates that the leading inter blade span <NUM> is smaller than trailing inter-blade span <NUM>.

In <FIG>, the first intermediate inter-blade span <NUM> is greater than the leading inter blade span <NUM> but smaller than trailing inter-blade span <NUM>, however this is not an essential feature. For example, the first intermediate inter-blade span <NUM> may be equal to either of the trailing inter-blade span <NUM> or the leading inter blade span <NUM>.

Specific measurements of the separation distance ranges inter-blade spans will now be discussed. A skilled person will appreciate that many choices and combinations of inter-blade spans may be made that satisfy the above-discussed features of the razor cartridge <NUM>, and that the following discussion is not limited to the disclosed values.

In an example, the trailing inter-blade span <NUM> is within a range of <NUM> to <NUM>, <NUM> to <NUM>, or <NUM> to <NUM>.

When three cutting members 28a-c are present, the trailing inter-blade spans defined above may still apply, in combination with a leading inter-blade span <NUM> in a range of <NUM> to <NUM>, <NUM> to <NUM>, or within <NUM> to <NUM>.

When four cutting members 28a-d are present, the leading inter-blade span <NUM> is in a range of <NUM> to <NUM>, <NUM> to <NUM>, or within <NUM> to <NUM>.

In an example, the trailing inter-blade span <NUM> is within a range of <NUM> to <NUM>, <NUM> to <NUM>, or is <NUM>.

The first intermediate inter-blade span <NUM> is within a range of <NUM> to <NUM>.

In an example, the leading inter-blade span <NUM> is within a range of <NUM> to <NUM>, specifically <NUM> to <NUM>, or is <NUM>.

In an example, the leading blade to frame span <NUM> is within a range of <NUM> - <NUM>, <NUM> to <NUM>, or is <NUM>.

In an example, the trailing blade to frame span <NUM> is within a range of <NUM> to <NUM>, <NUM> to <NUM>, or is <NUM>.

The ranges discussed above are generally increased as compared to conventional razor cartridges. The rinsability of a cartridge as discussed herein is generally improved, because more space is available between the trailing cutting members 28a-d for debris to flow off closer to the trailing edge of the razor cartridge <NUM>. The size of skin bulges is also reduced, resulting in an improved shaving performance.

According to the embodiment in which the leading inter-blade span <NUM> is larger compared to the first intermediate inter-blade span <NUM> or the trailing inter-blade span <NUM>, the first two blades that cut the highest amount of hair are far enough apart to ensure that the debris can be removed easily. Therefore, a safer shaving experience is provided. Providing the blade support "on top" of the blade provides an additional skin-contacting element (as well as the cutting edges <NUM> of the blades) which supports the skin during shaving.

In an embodiment where the trailing inter-blade span <NUM> is greater than the leading inter-blade span <NUM>, consecutive inter-blade spans of the razor cartridge successively decrease between the leading longitudinal side <NUM> and the trailing longitudinal side <NUM> of the razor cartridge in the shaving direction.

In an example, any possibly combination of inter-blade spans is possible, provided a leading inter-blade span that is closest (or closer) to the leading longitudinal side <NUM> of the razor cartridge is smaller than a trailing inter-blade span that is closest (or closer) to the trailing longitudinal side <NUM> of the razor cartridge.

In another example, the leading inter-blade span <NUM> is within a range of <NUM> to <NUM>, <NUM> to <NUM>, or <NUM> to <NUM>.

When three cutting members 28a-c are present, the leading inter-blade spans defined above may still apply, in combination with a trailing inter-blade span <NUM> in a range of <NUM> to <NUM>, <NUM> to <NUM>, or within <NUM> to <NUM>.

When four cutting members 28a-d are present, the trailing inter-blade span <NUM> is in a range of <NUM> to <NUM>, <NUM> to <NUM>, or within <NUM> to <NUM>.

In an example, the leading inter-blade span <NUM> is within a range of <NUM> to <NUM>, <NUM> to <NUM>, or is <NUM>. The first intermediate inter-blade span <NUM> is within a range of <NUM> to <NUM>. In an example, the trailing inter-blade span <NUM> is within a range of <NUM> to <NUM>, specifically <NUM> to <NUM>, or is <NUM>. In an example, the leading blade to frame span <NUM> is within a range of <NUM> - <NUM>, <NUM> to <NUM>, or is <NUM>. In an example, the trailing blade to frame span <NUM> is within a range of <NUM> to <NUM>, <NUM> to <NUM>, or is <NUM>.

However, in this example, any possibly combination of inter-blade spans is possible, provided a leading inter-blade span that is closest (or closer) to the leading longitudinal side <NUM> of the razor cartridge is smaller than a trailing inter-blade span that is closest (or closer) to the trailing longitudinal side <NUM> of the razor cartridge.

According to the embodiment in which the leading inter-blade span <NUM> is smaller compared to the first intermediate inter-blade span <NUM> or the trailing inter-blade span <NUM>, the blades towards the front of the razor cartridge <NUM> accordingly have a narrower IBS, that further reduces the risk of nicks and cuts. Therefore, a safer shaving experience is provided. Providing the blade support "on top" of the blade provides an additional skin-contacting element (as well as the cutting edges <NUM> of the blades) which supports the skin during shaving. Because frequent shavers do not generate as much debris when shaving, it is not as critical that a large amount of debris needs to be conducted away from the inter-blade gap that is closer to the leading edge of the razor cartridge.

<FIG> illustrates a side view of a blade arrangement illustrating the reduction in skin bulging when enabling the blade support member to contact the skin during shaving when the inter-blade span is greater at the leading longitudinal side compared to the trailing longitudinal side.

<FIG> illustrates a further side view of a blade arrangement illustrating the benefit of enabling the blade support member to contact the skin when the inter-blade span is greater at the leading longitudinal side compared to the trailing longitudinal side.

<FIG> illustrates a method, which is not part of the claimed invention, of manufacturing a razor cartridge according to a further aspect.

The method, which is not part of the claimed invention, comprises:.

<FIG> illustrates a shaving razor assembly <NUM> according to a further aspect. The shaving razor assembly <NUM> comprises a razor handle <NUM> and a razor cartridge <NUM> according to the first aspect or one of its embodiments, wherein the razor cartridge is either releasably attached to the razor handle via a pivotable <NUM> or non-pivotable connection, integrally formed with the razor handle via a non-pivotable connection, or integrally formed with the razor handle via a pivotable connection.

According to a further aspect, there is provided a kit of parts comprising a razor handle <NUM> and a razor cartridge holder comprising a plurality of razor cartridges razor cartridge <NUM> according to the first aspect or its embodiments.

In the preceding specification, a razor blade comprising at least three cutting members 28a-c according to the aspect may have fourth and fifth blades, according to specific embodiments. The leading inter-blade span, the trailing inter-blade blade span, the first intermediate blade span, and where relevant the second inter-blade span are defined between the cutting edges <NUM> of the respective three, four, or five blades. For example, in the case of three cutting members 28a-c, a first intermediate blade span, and second inter-blade span and not present. In an embodiment with four cutting members 28a-d, a second intermediate inter-blade span it not present. In an embodiment with five blades, the leading inter-blade span, first and second intermediate inter-blade spans, and a trailing inter-blade span are present.

In the preceding specification, numerous specific details are set forth in order to provide a thorough understanding. It will be apparent, however, to one having ordinary skill in the art that the specific detail need not be employed to practice the present disclosure. In other instances, well-known materials or methods have not been described in detail in order to avoid obscuring the present disclosure.

Reference throughout the preceding specification to "one embodiment", "an embodiment", "one example" or "an example", "one aspect" or "an aspect" means that a particular feature, structure or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present disclosure. Thus, appearances of the phrases "in one embodiment", "in an embodiment", "one example" or "an example", "one aspect" or "an aspect" in various places throughout this specification are not necessarily all referring to the same embodiment or example.

Claim 1:
A razor cartridge (<NUM>) comprising:
four substantially parallel cutting members (28a-d) disposed between a leading longitudinal side (<NUM>) and a trailing longitudinal side (<NUM>) of the razor cartridge in a shaving direction (S) of the razor cartridge;
wherein each of the cutting members (28a-d) comprises a blade support (<NUM>);
wherein the cutting members (28a-d) are disposed to define a plurality of inter-blade spans (<NUM>, <NUM>, <NUM>) between cutting edges (<NUM>) of the blades;
wherein a leading inter-blade span (<NUM>) that is closer to the leading longitudinal side (<NUM>) of the razor cartridge than a trailing inter-blade span (<NUM>) is different to the trailing inter-blade span (<NUM>) that is closer to the trailing longitudinal side (<NUM>) of the razor cartridge than the leading inter-blade span;
wherein a first intermediate inter-blade span (<NUM>) is further defined between the leading inter-blade span (<NUM>) and the trailing inter-blade span (<NUM>);
characterized in that
the blade support (<NUM>) comprises a blade mounting portion (<NUM>) disposed on an inner surface (<NUM>) of the respective blade support that, in use, faces away from a shaving plane (SH), and a blade (<NUM>) attached to the blade mounting portion (<NUM>);
and in that the first intermediate inter-blade span (<NUM>) is in the range <NUM> to <NUM>.