WO2009124596A1

WO2009124596A1 - Razor handle provided with two arms and razor comprising such a razor handle

Info

Publication number: WO2009124596A1
Application number: PCT/EP2008/054436
Authority: WO
Inventors: Dimitris Efthimiadis; Phaedon Papageorgis - Papadopoulos; Andreas Vasileiadis
Original assignee: BIC Violex SA
Current assignee: BIC Violex SA
Priority date: 2008-04-11
Filing date: 2008-04-11
Publication date: 2009-10-15
Anticipated expiration: 2010-10-11

Abstract

A razor handle having a handle body (18) extending in a longitudinal direction between (L) a front end (18A) and a back end (18B), and two arms mounted on the handle body (18) for connecting a shaving head (14) to the razor handle (12). Each of said two arms having a free end, the free ends of the two arms being respectively able to cooperate with two rearwardly protruding connectors (30) provided on the shaving head (14). The razor handle (12) further comprises two lateral flanges (82) extending forward at the front end (18A) of the handle body (18), at least as far as said free ends (22B), said two arms (22) being situated between said two lateral flanges (82).

Description

Razor handle provided with two arms and razor comprising such a razor handle

Field of the invention

The invention relates to a razor handle provided with two arms and to a razor comprising such a razor handle .

Background of the invention More precisely, the invention relates to a razor handle having:

- a handle body extending m a longitudinal direction between a front end and a back end, and

- two arms mounted on the handle body and extending forward substantially symmetrically on both sides of a medial axis and further than the front end of the handle body for connecting a shaving head to the razor handle, each of said two arms having a free end, the free ends of the two arms being respectively able to cooperate with two rearwardly protruding connectors provided on the shaving head.

EP0271185 discloses an example of such a known razor, m which the arms have journal means for engaging journal bearings on the bottom of the pivoting shaving head.

EP0153334 discloses another example of such a known razor, in which the arms are provided on tneir free end with shell bearings. On the underside of the body member of the shaving head are disposed two extensions comprising pivot mounting means by which the shaving head may be pivotally attached to a razor handle.

However, in t>oth of these razors, the arms extend Jαeyond the sides of the handle body and are accessible to an operator and can therefore be damaged. Summary of the invention

One objective of the present invention is to avoid this drawback and to improve the retention of the shaving head on the razor handle. To this end, according to the invention, the razor handle further comprises two lateral flanges extending forward at the front end of the handle body, at least as far as said free ends, said two arms being situated between said two lateral flanges.

These flanges guide the user during the connection of the shaving head on the razor handle.

In various embodiments of the invention, one and/or the other of the following features may be incorporated :

- according to the razor handle embodiment, the two lateral flanges can be provided directly on the handle body, on a lock/release mechanism mounted on the handle body, or on a shaving cartridge carrier mounted on the handle body and to be connected to the shaving head, - each of the two lateral flanges has an outer edge extending laterally in the flow of the handle body, m the continuity of the external profile,

- each of the two lateral flanges has a recess opening forward and adapted to receive partially one of the two protruding connectors of said shaving head,

- each of the two lateral flanges has a recess opening forward and each recess is V-shaped and opens toward the corresponding free end of the two arms,

- the two arms are movable between a head locking position in which a shaving head is able to be locked on the razor handle and a head release position m wh._ch. a snaving head locked on the razor handle is aole to be released from the razor handle and the razor handle further comprises a lock/release mechanism comprising said two arms and an arm pusher adapted to actuate said two arms so as to release a shaving head connected to the razor handle,

- said two arms are elastically biased opposite to one another toward the head locking position and movable toward one another into the head release position,

- each of said two arms has a bearing for pivotally connecting a shaving head, - each of the free ends of the arms is provided with a shell bearing having a lateral edge extending toward the opening of the recess,

- the lock/release mechanism further comprises:

- a plunger which is movable between said two arms, substantially parallel to said medial axis,

- a spring biasing said plunger away from the handle body, such that said plunger is adapted to cooperate with a cam surface belonging to the shaving head for biasing said shaving head toward a rest position, and

- an arm pusher which is movable substantially parallel to the medial axis and which is biased toward the handle body by said spring, said arm pusher cooperating with the two arms by camming action for biasing the arms toward the head locking position.

- two pushbuttons are respectively provided on the two arms protruding laterally out of the handle Joody. The invention also concerns a razor comprising such a razor handle and a shaving head able to be connected to the razor handle. The shaving head is provided with rearwardly protruding connectors connected to the razor handle and partly covered by the two lateral flanges of the razor handle in the head lock position.

In various embodiments of such a razor, one and/or the other of the following features may be incorporated:

- the rearwardly protruding connectors of the shaving head comprises two protruding ribs and the lateral flanges are shaped in correspondence to partly cover said protruding ribs, - the protruding ribs are arcuate slots each comprising a lateral surface and an inclined surface, the inclined surfaces facing each other and extending slantwise toward each other from the top of the protruding ribs, the lateral flanges having a recess opening forward having a V- shape in correspondence to receive partly these lateral surface and these inclined surfaces,

- the recess has a first leg having an internal surface and a second leg having an internal surface, and in the head lock position, said internal surface of the first leg is parallel to the inclined surface of the ribs and said internal surface of the second leg is parallel to the lateral surface of the ribs .

- when the shaving head is connected to the handle in the head lock position, a clearance between the lateral surface of the protruding ribs and the internal face of the lateral flanges is less than 2.5 mm,

- each of the free ends of the arms is formed by a shell bearing having a lateral edge extending toward the opening of the recess.

- each of two inclined surfaces of the shaving head has a free end having an arcuate concave surface facing toward the shaving head and defining with a corresponding arcuate convex surface further provided on the shaving head an inwardly facing arcuate slot adapted to receive the lateral edge of the shell bearing for pivotally mounting the shaving head onto the razor handle, said arcuate slot being located outside of the recess when the shaving head is connected to the razor handle .

The above and other objects and advantages of the invention will become apparent from the detailed description of one embodiment of the invention, considered m conjunction with the accompanying drawings.

Brief description of the drawings

Figure 1 is a perspective view from below of the razor according to the invention, the shaving head being released. Figure 2A is a perspective view of the razor shown m Figure 1, the shaving head being connected to the razor handle.

Figure 2B is a perspective top view of the razor shown m Figure 1, the shaving head being connected to the razor handle.

Figure 2C is a side view of the razor shown m Figure 1, the shaving head being connected to the razor handle .

Figure 3A is a perspective exploded view of the razor shown m Figure 1 (without the shaving head) .

Figure 3B is a perspective view of the lock/release mechanism shown in Figure 3A iwithout the handle body) .

Figure 4A is a partial longitudinal section of the razor of Figure 2C along lines IV-IV, the shaving head being released and the lock/release mechanism being in tne head release position.

Figure 4B is a partial longitudinal section of the razor of Figure 2C along lines IV-IV, the shaving head being connected to the razor handle and the lock/release mechanism being in the head lock position.

Figure 4C is a partial longitudinal section of the razor of Figure 2C along lines IV-IV, the shaving head being release and the lock/release mechanism being in the head lock position.

Figure 4D is a zoom IV-D of Figure 4B. More detailed description

Figure 1 illustrates a razor 10 according to the present invention, having a razor handle 12 and a shaving head 14 provided with one or several shaving blades 16.

The razor handle 12 has an elongate handle body 18 extending in a longitudinal direction L between a front end 18A and a back end 18B. The longitudinal direction L may be curved and/or include one or several straight portions. The handle body 18 has an upper face 18C opposite to a lower face 18D.

The shaving head 14 is preferably a disposable shaving head and includes a front face 14A having one or several blades 16 exposed thereon, and a rear face 14B which can be connected to the razor handle 12 as illustrated on Figures 2A to 2C by a lock/release mechanism 20 which is shown in greater details in figures

3A-B and 4A-C and which enables to selectively connect the shaving head 14 to the razor handle 12 or release said shaving head 14 in order to exchange shaving heads.

The lock/release mechanism 20 is included in the handle body 18 which may therefore be in two parts 18' and 18'' (see figure 3A) . The lock/release mechanism 20 includes two arms 22 which can be made for instance out of molded plastic material. The two arms 22 may each extend from a first end 22A situated inside the handle body 18 toward a free end 22B which may protrude toward the outside at the front end 18A of the razor handle 12. The two arms 22 may be disposed in a V shape, diverging from a medial axis X from their first end 22A toward their respective free end 22B. The medial axis X is substantially parallel to the curved longitudinal axis L of the handle. The first ends 22A of the two arms 22 may be connected together by a hinge 23, formed for instance as a thin bridge of plastic material connecting the two arms 22 to each other when said arms are molded as a single piece. The hinge 23 may have a negligible resilient action, or no resilient action, on the two arms 22.

The two arms 22 further include respectively two pushbuttons 24 which may be formed integrally therewith and which may protrude laterally out of the handle body 18, for instance through two holes 25 formed in said handle body 18. The pushbuttons 24 may thus be surrounded by the handle body 18 in all directions around the holes 25.

The free ends 22B of the arms 22 may be provided with respectively two bearings, in particular two shell bearings 26 which are exposed toward the outside. The free ends 22B could also be provided with journal means or any known connecting means.

Each shell bearing 26 may for instance include a cylindrical concave front face 26A and a lateral edge 26B which protrudes outwardly and which has also a cylindrical shape. The two front faces 26A and the two lateral edges 26B have the same cylindrical axis, corresponding to the pivot axis A of rotation of the shaving head 14.

In reference to Figures 4A, 4B and 4C, the arms 22 are elastically biased opposite to one another toward a head locking position (see Figure 4B or 4C) and movable toward one another into a head release position (see Figure 4A) .

As shown in figure 4A, the rear face 14B of the shaving head 14 may include two rearwardly protruding connectors, i.e. two inwardly facing arcuate slots 28 shaped in correspondence with the lateral edges 26B of the shell bearings 26 and adapted to receive said lateral edges 26B for pivotally mounting the shaving head 14 onto the handle 12. These arcuate slots 28 may be formed respectively in two protruding ribs 30 including two respective lateral surface 29 (and its corresponding internal face 29') and two respective inclined surfaces

31 facing each other and extending slantwise toward each other from the top of the ribs 30 toward the arcuate slots 28, so as to facilitate the insertion of the shell bearings 26 in the arcuate slots 28 and may be limited toward the handle 12 by a first arcuate concave surface

32 facing toward the shaving head 14, and away from the handle 12, by a larger second arcuate convex surface 34 facing toward the handle 12.

The front faces 26A of the shell bearings 26 bear respectively on the second arcuate convex surfaces 34. Said second arcuate convex surfaces 34 may include respectively two notches 36 for receiving corresponding protrusions 38 of the shell bearings 26, so as to limit the angular range of rotation of the shaving head 14. The rear face 14A of the shaving head 14 may further include a central rib 40 having an edge forming a top flat cam surface 42 facing away from the shaving head 14 toward the handle 12.

In reference to Figures 3A-B and 4A-C, the lock/release mechanism 20 further includes a plunger 48 which is movably mounted, substantially along the medial axis X between the two arms 22. This plunger 48 has a central body 50 and two lateral wings 52 extending opposite to one another toward the two arms 22. The central body 50 extends longitudinally parallel to the medial axis X, between a first, substantially flat free end 5OA which bears against the cam surface 42 of the shaving head 14 (see Figure 4A) , and a second end 5OB facing away from the shaving head 14.

A recess 54 may be hollowed out in the central body 50, said recess 54 forming a blind hole which opens at the second end 5OB of the central body 50, in the direction of the handle 12. Each lateral wing 52 may include a detent 56 protruding parallel to the medial axis X toward the shaving head 14, said detent 56 facing an inwardly extending protrusion 58 belonging to the corresponding arm 22. The protrusion 58 has an opening 60 which is limited inwardly by a rim 62 belonging to said protrusion 58. Besides, the lateral wings 52 of the plunger 48 may each have respectively two ribs 64 which extend in a medial plane of the arms 22, opposite to the central body 50.

The plunger 48 is elastically biased toward the cam surface 42 of the shaving head 14 so as to cooperate therewith by camming action to bias said shaving head 14 in rotation about pivot axis A toward a rest position. In the example shown in the figures, the plunger 48 is elastically biased by a helicoidal spring 66, which has a first spring end fitted into the recess 54 and a second spring end fitted into a recess 68, for instance in the form of a blind hole, hollowed out in an arm pusher 70. The arm pusher 70 is disposed between the arms 22 in line with the plunger 48 along the medial axis X. More specifically, said arm pusher 70 is disposed between the plunger 48 and the hinge 23 along the medial axis X. The recess 68 opens parallel to the medial axis X toward the plunger 48.

The arm pusher 70 is slidably mounted between the arms 22, substantially parallel to the medial axis X and is elastically biased by said spring 66 toward the handle 12, i.e. away from the shaving head 14. Said arm pusher 70 cooperates by camming action with the two arms 22, more specifically with the two pushbuttons 24 for biasing said arms 22 outwardly away from each other, toward a head locking position shown in Figure 4B, where lateral edges 26B of the shell bearings 26 penetrate in the corresponding arcuate slots 28 of the shaving head 14.

The arm pusher 70 has preferably a central body 72 in which the recess 68 is hollowed out, and two lateral extensions 74 extending opposite to one another toward the two arms 22 and cooperating by camming action respectively with said two arms 22 for biasing the arms toward the head locking position. More particularly, these lateral extensions 74 may penetrate in two slots 76 formed respectively in the two arms and facing each other. The two lateral extensions 74 of the arm pusher 70 may have lateral edges 78 which cooperate by camming action with the respective bottoms 80 of the slots. Said lateral edges 78 may be diverging from the medial axis X in a direction away from the handle 12, whereas the bottoms 80 may also diverge from the medial axis in the direction away from the handle 12.

Thanks to these dispositions, the same spring 66 is used to bias the plunger 48 elastically toward the cam surface 42 of the shaving head 14 and to bias the arm pusher 70 away from the shaving head 14, thus biasing both the shaving head 14 in rotation toward the rest position and the arms 22 toward the shaving head lock position. It should be noted that the plunger 48 is maintained between the two arms 22 both by cooperation with the spring 66 by abutment against the cam surface 42 of the shaving head 14 and eventually by abutment against the protrusions 58 of the arms 22. When a shaving head 14 is mounted on the handle 12, the lock/release mechanism 20 is normally in the head lock position (see Figure 4B) . Starting from this position, when a user wishes to exchange shaving heads, he first pushes on both pushbuttons 24, which brings the arm 22 toward each other against the camming action of the arm pusher 70. During this movement, the arm pusher 70 slides along the medial axis X toward the plunger 48. When the arms 22 have sufficiently moved toward each other to reach the head release position shown in figure 4A, the shaving head 14 is released by the shell bearings 26 and is simultaneously ejected by the plunger 48.

The plunger 48 then moves forward to an outwardly protruding position, so that the detents 56 of said plunger penetrate in the openings 60 of the protrusions 58 of the arms. In this position, as shown in figure 4A, the arms 22 are maintained in the head release position by abutment of the rims 62 against said detents 56, thus cooperating by hooking action.

Afterwards, when a new shaving head 14 is fixed to the handle 12, the shell bearings 26 are inserted between the arcuate slots 28 of the new shaving head 14 and the cam surface 42 of said new shaving head pushes the plunger 48 backward toward the handle. The arms 22 are then released and moved away from each other under the action of the arm pusher 70, so that the shell bearings 26 insert themselves in the arcuate slots 28 of the new shaving head, and the lock/release mechanism 20 is again in the position shown in figure 4B (head locked position) . In order to improve the guiding of the insertion the shell bearings 26 in the arcuate slots 28 when the shaving head 14 is going to be locked on the handle 12 and to improve the connection of the shaving head, the razor handle 12 and more specifically the handle body 18 is further provided with two lateral flanges 82 extending forward at the front end 18A of the handle body 18 in the direction of the shaving head 14, at least as far as the free ends 22B of the arms 22 provided on the lock/release mechanism 20. The two lateral flanges 82 are located on the external face of the handle body 18 forming a kind of skirt for the two arms 22, said two arms 22 being situated between said two lateral flanges 82.

Each of the two lateral flanges 82, which is independent and separate from the arms 22, has an outer edge 84 extending laterally in the flow of the handle body 18, in order to have a continuity of the external profile of the handle body 18. More specifically when the handle 12 is provided with the above-mentioned lock/release mechanism 20, each outer edge 84 extends laterally in the flow of each respective hole 25 formed in said handle body 18 to receive the pushbuttons 24.

As best illustrated on the figures 4A and 4C, these two lateral flanges 82 have a respective recess 86 opening forward in direction of the shaving head 14 (when locked on the handle 12 as illustrated on Figure 4B) and adapted to receive partially one of the two protruding ribs 30 of said shaving head 14.

Seen especially from the top (or below) of the handle 12, each recess 86 can be V-shaped and opens toward the corresponding free end 22B of the two arms 22. In fact, the recess 86 may be shaped in correspondence with the arcuate slots 28 provided on the shaving head 14. The V-shaped recess 86 can be formed by a first leg 88 and a second leg 90 connected together by a curved elbow 89.

The first leg 88 can be inclined and its internal surface 88' can be shaped in correspondence with the inclined surface 31 of the ribs 30. The leg 88 can have a free end 88A extending just on the rear of the shell bearings 26 near the front end 18A of the handle body 18. In fact, the length of the inclined leg 88 is chosen such that even in the head lock position, the arcuate slots 28 of the shaving head 14 are accessible to the lateral edge 26B of the shell bearings 26.

The second leg 90 is preferably longer than the inclined leg 88 in order to cover partly the rib 30 when the shaving head 14 is locked on the handle 12 as more detailed below. The leg 90 can for instance extend as far as the lateral edge 26B of the shell bearings 26 in direction of the shaving head 14.

When a user pushes on both pushbuttons 24, the handle is in the head release position like depicted on Figure 4A and the recess 86 is free to receive the ribs 30 of a shaving head 14 to be locked, the opening 92 between the lateral edge 26B of the shell bearings 26 and the internal surface 90' of the leg 90 being accessible at is maximum, the width being equal to W92max. In this case and in considering the maximum width W30max of the ribs (taken between the lateral surface 29 and the inclined surface 31 near the first arcuate concave surface 32) , the width W92maχ is preferably just superior to the width W30maχ of the ribs 30: W92maχ = a x W30max, α being comprised between 1.05 and 2, preferably between 1.1 and 1.5, for instance equal to 1.15.

Therefore, when approaching the arcuate slots 28 of the shaving head 14 to the front end 18A handle body 18, each rib 30 is guided inside the recess 86 in sliding along one of the internal surfaces 88' or 90' of the two legs 88 and 90. More specifically, the lateral surface 29 or respectively the inclined surface 31 of each rib 30 slides along the internal surfaces 90' of leg 90 or respectively along the internal surfaces 88 'of the inclined leg 88.

When the shell bearings 26 are inserted between the arcuate slots 28 and the user releases the pushbuttons 24, the cam surface 42 of said new shaving head pushes the plunger 48 backward toward the handle and the lock/release mechanism 20 is again in the position shown in figure 4B (head lock position) and the new shaving head 14 is fixed to the handle 12. . In this head lock position, the internal surface 88' of the inclined leg 88 is preferably parallel to the inclined surface 31 of the ribs 30 and the internal surface 90' of the leg 90 is preferably parallel to the lateral surface 29 of the ribs 30. As depicted on Figure 4B, 4C (without the shaving head) and 4D (zoom) , in this head lock position, the recess 86 is partly covered by the shell bearings 26 extending toward the opening 92, the opening 92 available between the lateral edge 26B of the shell bearings 26 and the leg 90 being reduced at its minimum, the width being equal to W92. In fact, in considering the width W29 of the ribs 30 (taken between its external face, corresponding to width of the lateral surface 29 to its internal face 29') the width W92 is preferably just superior or equal to the width W29 in order to improve the connection of the shaving head and its retention.

W92 = β x W29, β being comprised between 1 and 1.5, preferably between 1 and 1.2, for instance equal to 1.1. In fact, after connecting the shaving head 14 on the handle 12, the ribs 30 and especially their lateral surfaces 29 are partly covered by the two lateral flanges 82 (see also Figures 2A-C) . Returning to Figure 4B, the ribs 30, and especially their lateral surfaces 29 and their inclined surfaces 31, are in fact almost entirely located inside each corresponding recess 86. In this position, the shaving head 14 is pivotally connected on the handle 12, the front faces 26A of the shell bearings 26 bearing respectively on the second arcuate convex surfaces 34, whereas the lateral edge 26B of the shell bearings 26 is in contact with the internal face 29' of the ribs 30. As better depicted on Figure 4D, the clearance 94 remaining between the lateral surface 29 and the internal surface 90' of the leg 90 of the lateral flanges 82 is at a minimum of value. For instance, the clearance 94 can have a width W94 which is less than 0.25 mm. This clearance may be comprised between 0.1 mm and 0.5 mm, preferably comprised between 0.1 mm and 0.25 mm, for instance of about 0.15 mm.

Therefore, the movement generated by the shaving in the connection can be at least partly absorbed by the flanges 82. Besides, the leg 90 has a top flat free end 9OA facing the rear face of the shaving head 14 (when connected to the handle) . This top flat free end 9OA is preferably parallel to the edges of the blades 14 (i.e. parallel to the pivot axis A) . Seen from the side view and as depicted on

Figure 2C, each flange 82, and more specifically each leg 90 covers almost entirely the lateral surface 29 of the ribs 30. The flanges 82 are not provided for biasing the shaving head 14 toward a rest position or for pivoting the shaving head 14; therefore the flanges 82, especially the top flat free end 9OA do not contact the rear face 14A of the shaving head 14 or any part of it .

In order to improve the gripping of the razor handle 12 and thus the shaving, the handle body 18 can be provided with a first finger rest area 96 on the upper face 18C of the handle body 18 (see Figure 2B) , and with a second finger rest area 98 on the lower face 18D of the body (see Figures 1 or 2A) , said finger rest areas 96 and 98 may be flexible gripping areas made of an injected moulded elastomeric material, whereas the rest of the handle can be substantially rigid backbone of an injected moulded thermoplastic, non elastomeric material.

Claims

1. A razor handle having: - a handle body (18) extending in a longitudinal direction between (L) a front end (18A) and a back end (18B) , and

- two arms (22) mounted on the handle body (18) and extending forward further than the front end (18A) of the handle body (18) for connecting a shaving head (14) to the razor handle (12), each of said two arms (22) having a free end (22B) , the free ends (22B) of the two arms (22) being respectively able to cooperate with two rearwardly protruding connectors (30) provided on the shaving head (14) , characterized in that the razor handle (12) further comprises two lateral flanges (82) extending forward at the front end (18A) of the handle body (18) , at least as far as said free ends (22B) , said two arms (22) being situated between said two lateral flanges (82) .

2. A razor handle according to the preceding claim, wherein the two lateral flanges (82) are provided on the handle body (18) .

3. A razor handle according to the preceding claim, wherein each of the two lateral flanges (82) has an outer edge (84) extending laterally in the flow of the handle body (18) .

4. A razor handle according to anyone of the preceding claims, wherein each of the two lateral flanges

(82) has a recess (86) opening forward and adapted to receive partially one of the two protruding connectors

(30) of said shaving head (14) .

5. A razor handle according to anyone of the preceding claims, wherein each of the two lateral flanges

(82) has a recess (86) opening forward and wherein each recess (86) is V-shaped and opens (92) toward the 5 corresponding free end (22B) of the two arms (22) .

6. A razor handle according to anyone of the preceding claims, wherein the two arms (22^ are movable between a head locking position in which a shaving head

(14) is able to be locked on the razor handle (12) and a 0 head release position in which a shaving head (14) locked on the razor handle (12) is able to be released from the razor handle (12) and wherein the razor handle (12) further comprises a lock/release mechanism (20) comprising said two arms (22) and an arm pusher (70)5 adapted to actuate said two arms (22) so as to release a shaving head (14) connected to the razor handle (12) .

7. A razor handle according to the preceding claim, wherein said two arms (22) are elastically biased opposite to one another toward the head locking position 0 and movable toward one another into the head release position .

8. A razor handle according to anyone of the preceding claims, wherein each of said two arms (22) has a bearing (26) for pivotally connecting a shaving head5 (14) .

9. A razor handle according to the preceding claim, wherein each of the free ends of the arms (22) is formed by a snell bearing (26) having a lateral edge extending toward the opening (92) of tne recess (86) . C 10. A razor handle according to the claim 8 or 9, wherein the lock/release mechanism (20) further comprises : - a plunger (48) which is movable between said two arms (22) , substantially parallel to said medial axis

(X) ,

- a spring (66) biasing said plunger (48) away 5 from the handle body (18), such that said plunger (48) is adapted to cooperate with a cam surface (42) belonging to the shaving head (14) for biasing said shaving head (14) toward a rest position, and

- an arm pusher (70) which is movable 0 substantially parallel to the medial axis (X) and which is biased toward the handle body (18) by said spring (66) , said arm pusher (70) cooperating with the two arms (22) by camming action for biasing the arms (22) toward the head locking position. 5

11. A razor handle according to the preceding claim, wherein two pushbuttons (24) are respectively provided on the two arms (22) protruding laterally out of the handle body (18) .

12. A razor comprising a razor handle (12) 0 according to any of the preceding claims and a shaving head (14) able to be connected to the razor handle (12) m a head lock position, said shaving head (14) being provided with rearwardly protruding connectors (30) connected to the razor handle (12) and partly covered by5 the two lateral flanges (82) of the razor handle (12) in said head lock position.

13. A razor according to the preceding claim, wherein the rearwardly protruding connectors (30) of the shaving head (14) comprises two protruding ribs (30) andG the lateral flanges (82) are shaped m correspondence to partly cover said protruding iibs (30) .

14. A razor according to the preceding claim, wherein the protruding ribs (30) are arcuate slots (26) each comprising a lateral surface (29j and an inclined surface (31) , the inclined surfaces (31) facing each other and extending slantwise toward each other from the top of the protruding ribs (30), the lateral flanges (82) having a recess (86) opening forward having a V-shape in correspondence to receive partly these lateral surfaces

(29) and these inclined surfaces (31) .

15. A razor according to the preceding claim, wherein the recess (86) has a first leg (88) having an internal surface (88') and a second leg (90) having an internal surface (90'), and wherein in the head lock position, said internal surface (88') of the first leg

(88) is parallel to the inclined surface (31) of the ribs

(30) and said internal surface (90') of the second leg (90) is parallel to the lateral surface (29) of the ribs (30) .

16. A razor according to the preceding claim, wherein when the shaving head (14) is connected to the handle (12) in the head lock position, a clearance (94) between the lateral surface (29) of the protruding ribs (30) and the internal face (90') of the lateral flanges (82) is less than 2.5 mm.

17. A razor according to anyone of the claims 14 to 16, wherein each of the free ends (22B) of the arms (22) is provided with a shell bearing (26) having a lateral edge (26B) extending toward the opening (92) of the recess (86) .

18. A razor according to the preceding claim, wherein each of two inclined surfaces (31) of the shaving head (14) has a free end having an arcuate concave surface (32) facing toward the shaving head (14) and defining with a corresponding arcuate convex surface (34) further provided on the shaving head (14) an inwardly facing arcuate slot (28) adapted to receive the lateral edge (26B) of the shell bearing (26) for pivotally mounting the shaving head (14) onto the razor handle (12) , said arcuate slot (26) being located outside of the recess (86) when the shaving head (14) is connected to the razor handle (12) .