CN112828948A - Razor with deflectable head and replaceable blades - Google Patents

Abstract

Razor (1) comprising a handle (2) and a head (3) which is arranged deflectable on the handle (2), wherein the head (3) has a frame (7) and a cover (15), and at least one shaving blade (13) which has a cutting edge and is supported between the frame (7) and the cover (15), characterized in that the at least one shaving blade (13) is supported in an exchangeable manner between the frame (7) and the cover (15), that the at least one shaving blade (13) is insertable between the frame (7) and the cover (15) by means of an operable securing member (16, 17, 18, 19), and that the securing member (16, 17, 18, 19) is arranged close to a side edge of the at least one shaving blade (13) opposite the cutting edge of the at least one shaving blade (13).

Description

Razor with deflectable head and replaceable blades

technical field

The present invention relates to razors, such as one having a deflectable head and replaceable blades.

Background technique

Razors have become popular and are used by people of all genders for their personal shaving needs.

Double-blade shaving devices have long been known to us. By using a blade constructed of low cost thin steel, the solution of disposing of the blade after a limited number of uses becomes common and economical, so that no sharpening or grinding is required. The safety feature of this type of razor is that the user is protected from other parts than the edge of the blade, which is attractive to the user. Based on the orientation of the handle and blade, the user needs to master the correct technique to achieve an optimal shave. Disposable razors use small, thin blades that are exposed only at the edges; disposable razors have a deflectable head that somewhat matches the contours of the body area to be shaved. But due to the disposable blades designed as disposable products and their limited lifespan, disposable razors are only suitable for short periods of use.

Alternatively, there are razors that contain double-edged blades. Many of the current safety razors use a double edged blade, and the blade is clamped to the head of the safety razor to hold it in place. Typically, the blade edge is exposed on each side of the razor head. However, many of these safety razors do not contain a deflectable head, so the user needs to hold the razor and the blade at a specific angle to the body part to be shaved in order to achieve a proper shave. This can lead to a lengthy process that does not always provide the desired thorough shave.

Razors with replaceable blades have been disclosed in US 841 942 A and US 956 532 A. WO 2016/081795 A1 discloses a razor having a handle and a head, the head being deflectably arranged on the handle, wherein the head has a frame and a cover, the cover being deflectably arranged on the handle on the frame; this case also discloses at least one shaving blade separating element, which is provided between the frame and the cover of the head.

WO 2016/081795 A1, in particular paragraph [0040] of its specification, also proposes to provide two "half blades" or halves of a double-edged shaving blade by dividing the double-edged shaving blade into two halves. Each half can contain one razor blade. Therein, it is also possible to provide a "half blade" in the starting form, without the need to split the double edged shaving blade in half. By applying a "half blade" in the head of the razor, the razor can provide a configuration containing several shaving blades to shave a person's face. The case also proposes that certain "half blades" may be designed and configured such that they are individually matched to the frame of the razor and to the cap of the head.

SUMMARY OF THE INVENTION

It is an object of some embodiments of the present invention to provide a razor that has at least one easily replaceable shaving blade and that takes advantage of advanced razor technology.

To this end, some embodiments of the present invention provide razors comprising: a handle and a head deflectably disposed on the handle; wherein the head has a frame and a cover, and at least one shaving blade having a blade rim and supported between the frame and the cover; the at least one shaving blade is replaceably supported between the frame and the cover, the at least one shaving blade being steerable, eccentric An arranged securing member is inserted between the frame and the cover, the securing member being passable through an eccentric groove located in the at least one shaving blade, and the at least one shaving blade being accessible by means of the securing member Connected to the frame and to the cover.

Preferably, several shaving blades are embedded in the head of the razor of some embodiments of the present invention. Preferably, the shaving blade is a half-blade such as disclosed in WO 2016/081795 A1. The fixing member is eccentrically arranged in a symmetrical manner, so as to be close to the side edge of the at least one shaving blade.

Preferably, the securing member passes through a V-shaped projection on the rear side of the shaving blade, ie on the longitudinal edge opposite the cutting edge.

Thus, the securing member is arranged very close to the cutting edge of the at least one shaving blade, without widening the shaving device and without occupying a central area of the razor, which is set aside in order to All movements required for shaving are carried out by means of the razor during shaving. Due to the proximity of the securing member to the cutting edge, a good clamping of the blade to the frame is possible in general, but especially at the cutting edge on the front side.

Due to the symmetrical eccentric arrangement of the fixing members, a specific geometry of the head can be achieved, which in particular by means of the central recess on the upper edge ensures excellent access to the problem areas to be shaved. This geometry is particularly advantageous for using the razor in the area between the upper lip and the lower edge of the nose. This applies accordingly to other anatomically inaccessible and problematic areas to be shaved. In any event, the location of the securing member ensures that skin injuries are avoided and at the same time that the area of the skin to be shaved is easily accessible.

Based on said fixing member, the shaving blade(s) can be easily replaced. The fixing member can be released or released relative to the head.

The at least one shaving blade and a spacer are exposed by removing the securing member, the spacer being disposed between the shaving blades, or between the shaving blade and the cover, or between the shaving blades between the razor blade and the frame. In the event that the at least one shaving blade needs to be replaced due to dullness, the spacer can be reused.

Preferably, the razor produces only a single type of metal scrap that can be recycled. This avoids plastic waste, as only the metal razor blades are removed, which can be easily recycled as scrap metal.

The amount of waste material is significantly reduced when using the razor of the present invention compared to commercially available and some market leading systems such as refill heads or disposable razors constructed of composite materials.

This can greatly ease the burden on the environment and save limited resources.

If at least two shaving blades are provided in the head of the razor, a small distance between the blade edges of the at least two shaving blades is required to achieve a thorough, smooth, safe and free Hurt shave.

In a preferred version where at least two shaving blades are used, the shaving blades are separated by an intermediate piece between the shaving blades.

By the blade spacing defined by the spacers between the shaving blades on the one hand, and by the rearward offset position of the cutting edge of the upper shaving blade relative to the cutting edge of the lower shaving blade, for example, less than 1 mm, preferably more than Smaller distance of 0.3mm.

According to some embodiments of the present invention, the rearward offset position of the upper blade relative to the lower blade is defined by the abutment of the shaving blade on the front bevel and/or the back bevel, the bevel being provided on the frame and/or the cover. . The angle between the inclined plane and the base plane of the frame may be between 10° and 60°. As an alternative to bevels, steps may be provided in the frame and/or in the cover for the shaving blades and spacers to abut. The abutment bevels can likewise consist of other elements such as screws.

The ramps define the horizontal and vertical positions of the spacers.

According to a preferred solution, the spacer is constructed as follows: in the rear region of the spacer, ie on the side facing away from the edge of the shaving blade, a channel is created above the upper edge of the shaving blade, which The hair, dander, shaving foam, and water removed by shaving is enabled to flow backwards. This makes it easy to keep the razor head clean.

By arranging the head relative to the handle, a movable, in particular rotatable and/or elastic support is achieved, whereby the head can follow the contour of the area to be shaving, thereby enabling smooth and safe shaving.

Where two securing members are used, a releasable locking mechanism is provided and configured on the head of the razor for holding the frame and cover together. The releasable locking mechanism may comprise knurled nuts, each provided on a threaded pin.

According to a preferred technical solution of some embodiments of the present invention, the two fixing members respectively comprise a threaded pin fixedly connected to the frame or the cover, preferably the nut of a knurled nut is located in the thread On the pin, the frame and the cover, and the shaving blade and the spacer between them, are clamped by means of the nut.

The securing member clamps the cover or frame to the frame or cover vertically or at an angle of up to 40° from vertical. wherein the vertical line is defined by the face of the at least one shaving blade.

According to one embodiment of the invention, there is provided a threaded pin serving as a fixing member, which is fixedly connected to the knurling wheel and which is screwed into the cover, thereby clamping the frame to the cover, or is screwed in frame, thereby clamping the cover to the frame.

Advantageous further developments refer to the dependent claims and the description, in particular in conjunction with the drawings.

The handle is preferably ergonomically designed, similar to an S shape, so as to avoid accidental twisting during shaving.

The handle, the frame, the cover and the nut either consist entirely of metal and are constructed, for example, as zinc die-cast components, or at least partially consist of a plastic such as polypropylene. According to a further preferred embodiment, the handle consists, for example, of metal on its top side and plastic on its bottom side. In this case, the underside of the handle may match the position of the shaving person's fingers.

In any event, by using a razor that is detachable and can be easily dismantled by loosening the knurled nut, metal shaving blades can be replaced more quickly and easily.

Preferably, the head of the razor itself is elastic; in addition, the head of the razor can also be supported and/or elastically supported in a movable, in particular rotatable, manner relative to the handle.

According to a preferred technical solution of some embodiments of the present invention, the head is supported by a sleeve relatively fixed on the handle by means of an element that can move together with the head.

Preferably, the element is supported relative to the sleeve by a spring.

Also preferably, the head is connected to the two extension elements of the handle through the frame.

According to another preferred technical solution, the movable element and the sleeve are arranged between the elongated elements.

Preferably, the head is movably, in particular rotatably movable, and/or elastically fastened to the extension element by means of pins or screws.

Description of drawings

The present invention will be described in detail below with reference to the drawings and an embodiment. in:

Figure 1 is an isometric view of a razor from above,

Figure 2 is an isometric view of the razor from below,

Figure 3 is an isometric view of the razor in the region of its head,

Figure 4 is a side view of the razor in the region of its head,

Figure 5 is a side view of the razor,

Figures 6 and 7 are other isometric views of the razor in the region of its head,

Figure 8 is a longitudinal cross-sectional view of the razor along the axis I-I in Figure 1,

Figure 9 is a cross-sectional view of the head of the razor along the longitudinal axis of the threaded pin (enlarged relative to Figure 8),

Figure 10 is an exploded view of the various components of the razor,

Figure 11 is a top view of the head of the razor without the cover, and

12-14 are cross-sectional views of the head in the longitudinal direction of the handle of the razor.

Detailed ways

The razor 1 ( FIGS. 1 to 14 ) comprises a handle or handle 2 and a razor head or head 3 which is preferably constructed as a deflection head.

The handle 2 comprises two extension elements 4, 5 between which the head 3 is accommodated on the side by means of pins or screws 6. The pins or screws 6 are inserted through the drilled holes in the extension elements 4 , 5 and inserted laterally into the frame 7 of the head 3 . Furthermore, the pin 6 is held in the extension elements 4 , 5 or in the frame 7 in a press fit or screwed manner, for example by a snap connection, so that the head 3 remains pivotably connected to the handle 2 .

Between the extension elements 4 , 5 a sleeve 8 extends in the direction of the longitudinal axis of the handle 2 , which sleeve is fixedly connected to the handle and forms an extension of the handle 2 towards the head 3 . The sleeve 8 accommodates a movable element 9 inside, which is supported relative to the handle 2 by means of a coil spring 10 . The coil spring 10 is accommodated through a central bore 11 of the handle 2, which bore extends in the direction of the longitudinal axis of the handle.

This head is supported elastically relative to the handle 2 by means of an element 9 which rests on the head 3 on the side facing away from the handle 2 . Based on the element 9, the head 3 can be deflected during shaving and the head 3 can be re-swiveled back to its original position relative to the handle 2 after being removed from the abutment profile. The end position of the head 3 relative to the handle 2 , which can resist the elastic force of the coil spring 10 , is defined by a projection 12 provided on the frame 7 of the head 3 , which constitutes a stop for the movable element 9 .

The cover 15 is laid on the frame 7 of the head 3 together with the shaving blades 13 and the spacer 14 and is then fixed by means of the fixing elements 16 , 17 .

The fixing elements 16 , 17 consist of threaded pins to which knurled nuts 18 , 19 can be screwed on, said knurled nuts protruding from this frame on both sides on the underside of the frame 7 and thus at the same time close to the shaving blade 13 . Side edge arrangement. This ensures that, with the razor 1 in any position, the knurled nut does not contact and injure the skin during shaving, or cause a hindrance during shaving.

The cover 15 is pushed over the frame 7 by means of the fixing elements 16, 17 so that these are located in the grooves 20, 21 of the frame 7 (Fig. 3, Fig. 10). This makes it possible to easily remove the shaving blade 13 together with the spacer 14 from the head 3 and reinsert a new shaving blade 13 .

As an alternative to the shown combination of fixing elements 16 , 17 with knurled nuts 18 , 19 , other fixing elements can also be used, such as snap elements pressed into corresponding snap holes and the like.

The fixing elements 16, 17 connect the cover 15 to the frame 7 by passing through the V-shaped grooves 23 (Fig. 10) located on the rear edge of each of the shaving blades 13, so the fixing elements 16, 17 Preferably, there is a certain inclination angle with respect to the frame 7 and the cover part 15, which inclination angle corresponds to the angle at which the front edge of the shaving blade 13 and the face of the shaving blade 13 form each other.

According to some embodiments of the present invention, the following examples are also provided.

Example 1. A razor (1) comprising:

a handle (2) and a head (3) deflectably arranged on the handle (2);

Wherein, the head (3) has a frame (7) and a cover (15), and at least one shaving blade (13) has a cutting edge and is supported on the frame (7) and the cover (15). 15) between;

Therein, the at least one shaving blade (13) is replaceably supported between the frame (7) and the cover (15), the at least one shaving blade (13) being steerable by means of an eccentric arrangement The fixing members (16, 17, 18, 19) are embedded between the frame (7) and the cover (15), and the fixing members (16, 17, 18, 19) can pass through the at least one scraper An eccentric groove in the razor blade (13), and the at least one razor blade (13) can be connected to the frame (7) and to the cover (15) by means of fixing members (16, 17, 18, 19) connect.

Example 2. The razor (1) of example 1, wherein the grooves provided on the at least one shaving blade (13) are protrusions or drilled holes.

Example 3. Razor (1) according to example 1 or 2, wherein the protrusions or bores are arranged in the lateral region of the trailing edge of the at least one shaving blade (13), on the lateral edge or inside.

Example 4. The razor (1) according to any one of examples 1 to 3, wherein, with respect to the plane defined by the at least one shaving blade (13), the securing members (16, 17, 18, 19) are arranged perpendicular to the at least one shaving blade (13), or at an angle of at most 40° with respect to the vertical of the plane formed by the at least one shaving blade (13).

Example 5. Razor (1) according to any one of examples 1 to 4, wherein the at least one shaving blade (13) is opposite the frame (7) at least on one side by a spacer (14) and/or said cover (15) support.

Example 6. The razor (1) according to any one of examples 1 to 5, wherein the razor (1) comprises: at least two shaving blades (13) arranged in planes substantially parallel to each other, And the cutting edges thereof are offset from each other at an angle between 10° and 60°, wherein at least one spacer is provided between the at least two shaving blades (13).

Example 7. Razor (1) according to example 6, wherein the at least one shaving blade (13) abuts with its rear longitudinal edge facing away from the cutting edge and with its front longitudinal edge lying lateral to the cutting edge On the abutment surface or the abutment slope, the abutment surface or the abutment slope is formed in the frame (7) and/or in the cover (15), or is produced by other mechanical elements.

Example 8. The razor (1) according to any one of examples 1 to 7, wherein,

The fixing elements (16, 17, 18, 19) comprise screws supported in the frame (7) or in the cover (15), the screws being accessible by means of nuts, in particular knurled nuts ( 18, 19) are fixed relative to the cover (15) or the frame (7); or,

Said fixing members (16, 17, 18, 19) respectively comprise threaded pins with knurled wheels, said threaded pins being screwable in said frame (7) and/or said cover (15) )middle.

Example 9. The razor (1) according to any one of examples 1 to 8, wherein the head (3) is resiliently and/or rotatably supported relative to the handle (2).

Example 10. Razor (1) according to any one of examples 1 to 9, characterized in that the head (3) is relatively fixed by means of an element (9) movable together with the head (3) The sleeve (8) on the handle (2) is supported.

Example 11. The razor (1) according to any one of examples 1 to 10, wherein the element (9) is supported relative to the sleeve (8) by a spring.

Example 12. Razor according to any of the examples 1 to 11, wherein the head (3) passes through the frame (7) and two extension elements (4, 5) of the handle (2) connect.

Example 13. The razor (1) according to example 12, wherein the movable element (9) and the sleeve (8) are arranged between the elongated elements (4, 5).

Example 14. Razor (1) according to example 12 or 13, wherein the head (3) is fixed on the elongated elements (4, 5) by means of pins or screws (6).

Example 15. The razor (1) according to any one of examples 1 to 14, wherein the handle (2) is S-shaped.

Example 16. Razor (1) according to any one of examples 1 to 15, wherein the handle (2) is at least partially constructed of metal, in particular of cast zinc metal.

Example 17. The razor (1) according to any one of examples 1 to 16, wherein at least two securing members are provided.

Claims (10)

1. A razor (1), comprising: a handle (2) and a head (3) deflectably arranged on the handle (2); Wherein, the head (3) has a frame (7) and a cover (15), and at least one shaving blade (13) has a cutting edge and is supported on the frame (7) and the cover (15). 15) between; It is characterised in that the at least one shaving blade (13) is replaceably supported between the frame (7) and the cover (15), the at least one shaving blade (13) being replaceable by means of a steerable, Eccentrically arranged fixing members (16, 17, 18, 19) are embedded between the frame (7) and the cover (15), and the fixing members (16, 17, 18, 19) can pass through the at least An eccentric groove in a shaving blade (13), and the at least one shaving blade (13) can be connected to the frame (7) and to the cover ( 15) Connect. 2. Razor (1) according to claim 1, characterized in that the grooves provided on the at least one shaving blade (13) are raised or drilled; Optionally, the protrusions or bores are arranged in the lateral region of, on or inside the trailing edge of the at least one shaving blade (13). 3. Razor (1) according to claim 1 or 2, characterized in that the fixing members (16, 17, 18, 19) are opposite to the plane defined by the at least one shaving blade (13) They are arranged perpendicular to the at least one shaving blade (13), or at an angle of at most 40° with respect to the vertical line of the plane formed by the at least one shaving blade (13). 4. Razor (1) according to any one of claims 1 to 3, characterized in that the at least one shaving blade (13) is at least on one side opposite the frame (14) by a spacer (14). 7) and/or the cover (15) support. 5. Razor (1) according to any one of claims 1 to 4, characterized in that it comprises at least two shaving blades (13) arranged in planes that are substantially parallel to each other , and their cutting edges are offset from each other at an angle between 10° and 60°, wherein at least one spacer is provided at least between the at least two shaving blades (13); Optionally, the at least one shaving blade (13), with its rear longitudinal edge facing away from the cutting edge and with its front longitudinal edge lying lateral to the cutting edge, abuts against the abutment surface or the abutment slope, the The abutment surface or the abutment slope is formed in the frame (7) and/or in the cover (15), or is produced by other mechanical elements. 6. Razor (1) according to any one of claims 1 to 5, characterized in that, The fixing elements (16, 17, 18, 19) comprise screws supported in the frame (7) or in the cover (15), the screws being accessible by means of nuts, in particular knurled nuts ( 18, 19) are fixed relative to the cover (15) or the frame (7); or, Said fixing members (16, 17, 18, 19) respectively comprise threaded pins with knurled wheels, said threaded pins being screwable in said frame (7) and/or said cover (15) )middle. 7. Razor (1) according to any one of claims 1 to 6, characterized in that the head (3) is elastically and/or rotatably supported relative to the handle (2); Optionally, the head (3) is supported relative to a sleeve (8) fixed on the handle (2) by means of an element (9) that can move together with the head (3); Optionally, the element (9) is supported relative to the sleeve (8) by a spring. 8. Razor according to any one of claims 1 to 7, characterized in that the head (3) passes through the frame (7) and two extension elements (4, 4 of the handle (2)) 5) Connection; Optionally, the movable element (9) and the sleeve (8) are arranged between the elongated elements (4, 5); Optionally, the head (3) is fixed on the extension elements (4, 5) by means of pins or screws (6). 9. The razor (1) according to any one of claims 1 to 8, wherein the handle (2) is S-shaped; Optionally, the handle (2) consists at least partially of metal, in particular of cast zinc metal. 10. Razor (1) according to any one of claims 1 to 9, characterized in that at least two fixing members are provided.

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