GB2164598A

GB2164598A - A shaving device

Info

Publication number: GB2164598A
Application number: GB08513328A
Authority: GB
Inventors: David Charles Coffin
Original assignee: Wilkinson Sword Ltd
Current assignee: Wilkinson Sword Ltd
Priority date: 1984-05-30
Filing date: 1985-05-28
Publication date: 1986-03-26
Also published as: IT1201303B; IT8509423A0; GB8413798D0; DE8515121U1; GB8513328D0; FR2565154A1; IT8511665V0; GB2162111A

Abstract

A disposable shaving device, for forming at least the head of a razor, has a blade (12) mounted on a blade platform (11), a guardbar (14) disposed in front of and parallel to the cutting edge of the blade (12) and connected to the blade platform (11), and a mounting member (16) for mounting the device on a razor handle. One or more flexible strips (16b) integral with and interconnecting the blade platform (11) and the mounting member (16) form a resilient hinge permitting resilient pivotal movement of the blade and guardbar about an axis parallel to the blade edge. <IMAGE>

Description

1

GB 2 164 598 A

1

SPECIFICATION A shaving device

5 This invention relates to a shaving device. More particularly the invention relates to a shaving unit incorporating a blade having a cutting edge and designed to be mounted on a razor handle for pivotal movement against a biassing spring about an 10 axis parallel to the cutting edge. Such pivotal movement is found by many users to give a better or more comfortable shave. The shaving device could be in the form of a disposable razor comprising the shaving unit and a handle integral there-15 with.

Shaving units of this type are well known and since they are intended to be discarded when the blade or blades no longer give a satisfactory shave, they are commonly formed to be detacha-20 ble from the supporting razor handle.

Hitherto, shaving units of this type have been formed with a pair of spaced-apart recesses on the pivot axis, for engagement with claws of the razor handle. If such handles are detachable from the 25 shaving unit they are of relatively complex construction, since they must include not only a mechanism for moving the claws into and out of engagement with the recesses of the shaving unit, but they must also incorporate a spring device for 30 engagement by the shaving unit, to resiliently oppose the pivotal movement of the unit.

According to the present invention there is provided a disposable shaving device comprising a blade platform, at least one blade having a cutting 35 edge and secured to the blade platform, a guard-bar fixed relative to the blade and blade platform and located in parallel spaced relationship to the cutting edge of the blade, and a mounting member providing means for securing the blade and blade 40 platform to a razor handle, and said mounting member includes at least one flexible strip integral with the blade platform and forming a resilient hinge, the axis of the hinge being parallel to said cutting edge.

45 One embodiment of shaving unit in accordance with the invention is illustrated in the accompanying drawing in which:-

Figure 1 is a plan view of the shaving unit with the blade or blades and top cap removed to show 50 better the construction of the unit;

Figure 2 is a front elevation of the unit of Figure

1;

Figure 3 is an end view of the unit of Figure 1;

Figures 4, 5 and 6 are sections on the lines IV-IV, 55 V-V and VI-VI of Figure 1, but including a blade and top cap in Figure 4, and

Figure 7 is an underneath plan view of the unit of Figure 1.

As shown in the drawing, with particular refer-60 ence to Figure 4, the shaving unit comprises a blade platform 11, a blade 12 secured to the platform 11, a top cap 13 secured to the platform 11 by rivets which thus hold the blade to the platform, and a guardbar 14. The guardbar extends parallel 65 to the cutting edge of the blade and is formed integrally with side walls 15, Figures 1-3, which themselves are integral with the blade platform 11.

A second blade can be mounted above the first blade with a spacer therebetween, the cutting edges of the two blades being staggered. For simplicity the blade 12 and the top cap 13 have been omitted from all the views except that of Figure 4.

The means for mounting the shaving unit on a razor handle comprise a mounting member 16 in the form of a parallel-sided strip which is integral with the underside of the blade platform but is spaced from the side walls 15. Closely adjacent the blade platform, the mounting member has a recess 16a extending therealong on the side remote from the guardbar 4. The depth of the recess 16a is such as to leave, between the base of the recess and the opposite side of the mounting member, only a relatively thin flexible strip 16b, Figures 4 and 5, or a plurality of such strips joining the mounting member 16 to the blade platform 11.

As shown in Figure 2, the mounting member contains three apertures 16c thus leaving four such flexible strips 16b joining the mounting member to the platform. The distance between the upper and lower sides of the recess will determine the maximum bending of the strips away from the unstressed position of the strips as shown in the drawing.

The portion of the mounting member 16 which engages a razor handle can be of L section as shown, or of any other suitable shape. For example the mounting member could be formed with a re-entrant groove along its length to receive therein the rail which is a conventional means for securing a razor handle to a disposable blade unit.

Claims

1. A disposable shaving device comprising a blade platform, at least one blade having a cutting edge and secured to the blade platform, a guard-bar fixed relative to the blade and blade platform and located in parallel spaced relationship to the cutting edge of the blade, and a mounting member providing means for securing the blade and blade platform to a razor handle, wherein said mounting member includes at least one flexible strip integral with the blade platform and forming a resilient hinge, the axis of the hinge being parallel to said cutting edge.

2. A disposable shaving device according to claim 1 wherein the mounting member is a parallel-sided substantially rigid member having a recess in one side thereof such that the base of the recess and the other side of the mounting member define therebetween said flexible strip or strips.

3. A disposable shaving device according to claim 2 wherein the spacing between the opposite sides of said recess determines the maximum pivotal movement of the shaving unit during shaving away from the relaxed state of said flexible strip or strips.

4. A disposable shaving device substantially as herein described with reference to the accompanying drawings.

70

75

80

85

90

95

100

105

110

115

120

125

130

2

GB 2 164 598 A

2

Amendments to the claims have been filed, and have the following effect:-

(a) Claim 1 above has been deleted ortextually 5 amended.

(b) New or textually amended claim has been filed as follows:-

1. A disposable shaving device comprising a 10 blade platform, at least one blade having a cutting edge and secured to the blade platform, a guard-bar rigidly fixed relative to the blade and blade platform and located in parallel spaced relationship to the cutting edge of the blade, and a mounting 15 member providing means for securing the blade and blade platform to a razor handle, wherein said mounting member includes at least one flexible strip integral with the blade platform and forming a resilient hinge, the axis of the hinge being paral-20 lei to said cutting edge.

Printed fn the UK for HMSO, D8818935, 2/86,7102.

Published by The Patent Office, 25 Southampton Buildings, London,

WC2A 1AY, from which copies may be obtained.