AU699297B2 - Safety razors - Google Patents
Safety razorsInfo
- Publication number
- AU699297B2 AU699297B2 AU30058/95A AU3005895A AU699297B2 AU 699297 B2 AU699297 B2 AU 699297B2 AU 30058/95 A AU30058/95 A AU 30058/95A AU 3005895 A AU3005895 A AU 3005895A AU 699297 B2 AU699297 B2 AU 699297B2
- Authority
- AU
- Australia
- Prior art keywords
- pockets
- skin
- blade unit
- shaving
- safety razor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
- B26B21/14—Safety razors with one or more blades arranged transversely to the handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/40—Details or accessories
- B26B21/44—Means integral with, or attached to, the razor for storing shaving-cream, styptic, or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Shavers And Clippers (AREA)
- Cosmetics (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Laser Surgery Devices (AREA)
- Glass Compositions (AREA)
- Paper (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
A safety razor blade unit including at least one elongate blade (1,2), and a skin engaging member (3) extending longitudinally of the blade(s), said member having a skin contacting surface (9) exposed for contact with skin of a user during shaving, characterized in that the skin engaging member includes a multiplicity of openings (10) at the skin contacting surface (9), said openings being adapted to discharge respective portions of a shaving enhancement product therefrom during shaving, said openings being distributed along the skin contacting surface and across the width thereof to span substantially the whole of the area of the skin contacting surface. <IMAGE>
Description
SAFETY RAZORS This invention relates to shaving devices and concerns a safety razor blade unit having at least one blade with a cutting edge which is moved across the surface of the skin being shaved by means of a handle to which the blade unit is attached. The blade unit may be mounted detachably on the handle to enable the blade unit to be replaced by a fresh blade unit when blade sharpness has diminished to an unsatisfactory level, or it may be attached permanently to the handle with the intention that the entire razor be discarded when the blade or blades have become dulled. Razor blade units generally include a guard which defines a surface for contacting the skin in front of the blade(s) and a cap for contacting the skin behind the blade(s) , the cap and guard serving important roles in establishing the so-called "shaving geometry", i.e. the parameters which determine the blade orientation and position relative to the skin during shaving. The present invention is especially concerned with the guard and/or cap of a razor blade unit. As a preliminary step prior to shaving it is common to apply a shaving preparation to the skin, such as shaving soap or the like to
facilitate the shaving operation. One effect of the shaving preparation, for example, is to lubricate the skin to enable the razor to slide more easily over the skin. In some situations, however, the skin is not prepared as well as it might be. Furthermore, at the end of shaving most of the preparation will have been removed. Therefore, it can be advantageous to provide the razor with a means for delivering a shaving enhancement composition or medium during shaving. Thus, it is known to provide a blade unit with a strip of material from which a lubricant is very gradually leached out during shaving. The benefits of such a lubricating strip have been well proven, but the active materials which can be incorporated in them is limited, e.g. by the manufacturing process, and the rate at which the lubricant is discharged is so low that an effective preparation of the skin before shaving is still needed. There have also been proposed razors which include a chamber containing a liquid shaving preparation, and a system for discharging the liquid onto the operative parts of the razor by squeezing a sponge impregnated with the liquid by applying finger pressure. However, there still remains a need for a razor adapted to dispense a shaving aid product gradually throughout the useful life of the razor blade unit, without requiring special attention by the user, such as to refill a reservoir or to cause the product to be discharged when required.
According to the present invention there is provided a safety razor blade unit having at least one elongate blade, and a skin engaging member defining a surface exposed for contact with the skin during shaving, said
member including a multiplicity of pockets for holding respective portions of shaving enhancement product, said pockets being distributed longitudinally and laterally over the skin contacting surface and each being open at the surface.
A skin engaging member provided according to the invention may allow for the dispensing of materials which can not be included in prior art lubricating strips, e.g. because they can not withstand the manufacturing process. The shaving enhancement product may be a formulation, such as semi-solid gel, which has been designed to have the desired solubilizing properties, and is conveniently retained in the pockets due to the properties of the product. The product may be a viscous fluid, or a gel, and may be of a nature to be miscible with water, which is generally present during shaving, or to dissolve in water, to render the product more fluid for discharge from the pockets.
In order to provide adequate supply of shaving enhancement product to last the useful lifetime of the blade unit, the pockets can communicate at the inner ends with a reservoir chamber containing the shaving enhancement product to be dispensed via the pockets.
The pockets should be disposed in an array with sufficient density of packing to ensure satisfactory application of product during shaving. A width of surface between the adjacent pockets of 5% to 100% of the maximum transverse dimensions of the pockets should be adequate while retaining a sufficiently well defined skin contacting surface.
In a preferred construction the
pockets are cylindrical, i.e. have smoothly curved side walls, and conveniently the pockets are right circular cylindrical with their axes substantially perpendicular to the skin contacting surface. However, other shapes are also possible, such as hexagonal or elliptical in cross section. The depth of the pockets is less than the pocket diameter, e.g. approximately equal to the pocket radius, and the thickness of material between adjacent pockets is less than the pocket radius.
The pockets are preferably formed in a front wall of a chamber for holding a supply of a fluid shaving enhancement product, each of the pockets communicating with the chamber through a restricted opening to control flow of product into the pockets and hence release at the skin contacting surface.
The skin engaging member can be the guard of the blade unit or it can be another member, such as the cap.
A better understanding of the invention will be gained from the following detailed description of an embodiment, reference being made to the accompanying drawings, in which:
Figure 1 is a cut away perspective view of a razor blade unit according to the invention; Figure 2 is a transverse cross section through the blade unit.
The safety razor blade unit shown in the drawings comprises a pair of blades 1, 2 mounted in tandem in a supporting frame, a guard 3 fastened to the frame and defining a hollow reservoir chamber 4, and cap 5 e.g. in the form of a strip of lubricating material carried by
the frame behind the blades.
The guard includes an upper wall 8 with an exposed surface 9 which is arranged to contact the skin during shaving. Within this wall is formed a multiplicity of pockets 10 positioned in a regular array extending over the length and width of the skin contacting surface. The pockets are disposed in a plurality of longitudinal rows, and in the shown example there are three rows with the pockets in adjacent rows longitudinally off set to permit the pockets to be closely spaced. The pockets are of circular configuration and in the illustrated embodiment all have the same diameter.
Each pocket 10 is in communication with the reservoir chamber 4 through a hole 12 shown to be of restricted area at the inner end of the pocket. The through flow area of the hole is selected to allow shaving enhancement product contained in the chamber 4 to flow at a controlled rate into the pockets where the product collects and remains held e.g. under the surface tension properties of the fluid product, ready to be discharged during shaving. The restricted hole also serves to obstruct the passage of the shaving aid product from the pocket back into the reservoir chamber, so that the pockets remain charged with product. In practice the reservoir chamber will contain sufficient volume of shaving aid product to last the full useful lifetime of the blade unit, that is until the blades have become dulled.
The shaving aid product preferably has lubricating property, but it may have, either alternatively or in addition, other, e.g. moisturizing properties considered beneficial
during shaving. It will have adequate fluidity to enable the product to pass from the reservoir chamber into the pockets, and adequate viscosity and surface tension characteristics to be held in the pockets without flowing freely out from the pocket openings, and to be dispensed gradually during shaving, e.g. upon being made more fluid by contact with water, when the guard surface slides over the skin during shaving. It is not an essential feature that the pockets should be supplied with shaving enhancement product and it is within the ambit of the present invention for the pockets to be shaped and dimensioned to collect a shaving enhancement product applied to the skin during one time of shaving and to retain that product until the next time of shaving, e.g. to provide improved lubrication during the initial stages of the subsequent shave. Modifications are of course possible without departing from the underlying inventive concept. For example, the member incorporating the pockets filled with shaving aid product could be made of a resilient material so that the member will flex slightly during shaving to encourage product to flow from the pockets. In addition to the benefits mentioned above the apertured member with the pockets may have a beneficial tactile influence upon the skin.
Claims (11)
1. A safety razor blade unit comprising at least one elongate blade, and a skin engaging member extending longitudinally of the blade(s) and defining a surface exposed for contact with the skin during shaving said member including a multiplicity of pockets for holding respective portions of a shaving enhancement product, each of said pockets opening at the skin contacting surface, said pockets being distributed along the surface and across the width thereof in an array spanning substantially the whole of the area of the skin contacting surface, and the adjacent pockets being spaced at a distance of 5% to 100% of the maximum transverse dimension of the pockets.
2. A safety razor blade unit comprising at least one elongate blade, and a skin engaging member extending longitudinally of the blade(s) and defining a surface exposed for contact with the skin during shaving, said member including a multiplicity of pockets for holding respective portions of a shaving enhancement product, each of said pockets opening at the skin contacting surface, said pockets being distributed along the surface and across the width thereof in an array spanning substantially the whole area of the skin contacting surface, each pocket containing a shaving enhancement product which is retained in the pocket due to the properties of the product and which is discharged gradually therefrom during shaving.
3. A safety razor blade unit comprising at least one elongate blade, and a skin engaging member extending longitudinally of the blade(s) and defining a surface exposed for contact with the skin during shaving said member including a multiplicity of pockets for holding respective portions of a shaving enhancement product, each of said pockets opening at the skin contacting surface, said pockets being distributed along the surface and across the width thereof in an array spanning substantially the whole area of the skin contacting surface, and the inner ends of at least some of the pockets communicating with a reservoir chamber containing shaving enhancement product to be dispersed via the pockets.
4. A safety razor blade unit according to claim 3, wherein each pocket communicates with the reservoir chamber.
5. A safety razor blade unit according to claim 3, wherein the pockets are formed in a wall member partially confining the reservoir chamber.
6. A safety razor blade unit according to claim 1, wherein the pockets have smoothly curved side walls.
7. A safety razor blade unit according to claim 6, wherein the pockets are cylindrical with the axes thereof substantially perpendicular to the skin contacting surface.
8. A safety razor blade unit according to claim 7, wherein the pockets are right circular cylindrical.
9. A safety razor blade unit according to claim 8, wherein the pockets have a depth not greater than the pocket diameter.
10. A safety razor blade unit according to claim 1, wherein the pockets are positioned in a plurality of longitudinal rows.
11. A safety razor blade unit according to claim 10, wherein the pockets of adjacent rows are longitudinally offset and overlap.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9414092 | 1994-07-13 | ||
GB9414092A GB9414092D0 (en) | 1994-07-13 | 1994-07-13 | Safety razors |
PCT/US1995/008634 WO1996002369A1 (en) | 1994-07-13 | 1995-07-11 | Safety razors |
Publications (2)
Publication Number | Publication Date |
---|---|
AU3005895A AU3005895A (en) | 1996-02-16 |
AU699297B2 true AU699297B2 (en) | 1998-11-26 |
Family
ID=10758238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU30058/95A Ceased AU699297B2 (en) | 1994-07-13 | 1995-07-11 | Safety razors |
Country Status (18)
Country | Link |
---|---|
EP (2) | EP1306173B1 (en) |
JP (1) | JPH10502845A (en) |
KR (1) | KR100392288B1 (en) |
CN (1) | CN1157280C (en) |
AT (2) | ATE337141T1 (en) |
AU (1) | AU699297B2 (en) |
BR (1) | BR9508270A (en) |
CA (1) | CA2194278C (en) |
CZ (1) | CZ298341B6 (en) |
DE (2) | DE69535198T2 (en) |
DK (2) | DK0771254T3 (en) |
ES (2) | ES2266644T3 (en) |
GB (1) | GB9414092D0 (en) |
HU (1) | HU220174B (en) |
MX (1) | MX9700299A (en) |
NZ (1) | NZ290041A (en) |
PT (2) | PT1306173E (en) |
WO (1) | WO1996002369A1 (en) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6185823B1 (en) | 1995-11-10 | 2001-02-13 | The Gillette Company | Oval frame razor |
GB9600620D0 (en) * | 1996-01-12 | 1996-03-13 | Gillette Co | Safety razors |
US6161287A (en) * | 1998-04-24 | 2000-12-19 | The Gillette Company | Razor blade system |
US6131287A (en) * | 1998-06-08 | 2000-10-17 | American Safety Razor Company | Razor cartridge with dimpled blade guard |
US6754958B2 (en) | 1998-08-19 | 2004-06-29 | The Gillette Company | Applying fluid preparations to the skin, e.g. in connection with shaving |
GB9818115D0 (en) | 1998-08-19 | 1998-10-14 | Gillette Co | Applying fluid preparation to the skin e g in connection with shaving |
AUPP723198A0 (en) * | 1998-11-23 | 1998-12-17 | Wride, Donald Charles Mr | Improved razor |
US7178241B1 (en) | 2000-05-22 | 2007-02-20 | Eveready Battery Company, Inc. | Lubricating shaving assembly |
US7266895B2 (en) | 2002-04-24 | 2007-09-11 | Eveready Battery Company, Inc. | Razor assembly |
US6964097B2 (en) * | 2003-12-04 | 2005-11-15 | Eveready Battery Company, Inc. | Shaving apparatus |
US20050188539A1 (en) * | 2004-02-26 | 2005-09-01 | Prudden John Jr. | Shaving blade unit |
GB2412861A (en) * | 2004-04-08 | 2005-10-12 | Reckitt Benckiser | Depilatory scraper including a source of non-depilatory material |
GB2412862A (en) * | 2004-04-08 | 2005-10-12 | Reckitt Benckiser | Depilatory tool with removable head |
BRPI0509752A (en) | 2004-04-08 | 2007-10-16 | Reckitt Benckiser | device and method |
GB2412856A (en) | 2004-04-08 | 2005-10-12 | Reckitt Benckiser | Depilatory scraper and method having head with undersurface and fin(s) projecting there from. |
US20060237021A1 (en) * | 2005-04-21 | 2006-10-26 | Guay Gordon G | Methods and devices for rejuvenating skin |
US7581318B2 (en) * | 2006-08-03 | 2009-09-01 | Eveready Battery Company, Inc. | Skin engaging device for a safety razor |
US20090071006A1 (en) * | 2007-09-14 | 2009-03-19 | The Gillette Company | Safety razor with enhanced shaving aid member |
PL2488331T5 (en) * | 2009-10-16 | 2018-09-28 | Edgewell Personal Care Brands, Llc | Lubrication box for a wet shaving implement |
US9738000B2 (en) * | 2009-10-16 | 2017-08-22 | Edgewell Personal Care Brands, Llc. | Lubrication box for a wet shaving implement |
PL2488330T5 (en) * | 2009-10-16 | 2018-10-31 | Eveready Battery Company, Inc. | Lubrication box for a wet shaving implement |
AU2010308335B2 (en) * | 2009-10-20 | 2016-08-04 | Edgewell Personal Care Brands, Llc | Lubrication box for a wet shaving implement |
AU2010310715B2 (en) * | 2009-10-21 | 2016-08-04 | Edgewell Personal Care Brands, Llc | Lubrication box for a wet shaving implement |
US20110203113A1 (en) * | 2010-02-25 | 2011-08-25 | Xiandong Wang | Razor Cartridge With Improved Cap Structure |
GB2491406A (en) * | 2011-06-03 | 2012-12-05 | Gwilym Boore | Shaving Aid and Method of Replenishment Thereof |
EP2537649B1 (en) * | 2011-06-21 | 2013-07-17 | The Gillette Company | Razor cartridge with skin contact element |
KR20130041555A (en) * | 2011-10-17 | 2013-04-25 | 주식회사 도루코 | Razor cartridge |
US9390631B2 (en) * | 2013-10-08 | 2016-07-12 | The Gillette Company | Shaving razor demonstration method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5056222A (en) * | 1990-09-28 | 1991-10-15 | The Gillette Company | Shaving system |
US5092042A (en) * | 1990-09-28 | 1992-03-03 | The Gillette Company | Shaving system |
US5369885A (en) * | 1992-11-09 | 1994-12-06 | Warner-Lambert Company | Insert molded dynamic shaving system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8911246U1 (en) * | 1989-09-21 | 1991-01-24 | Wilkinson Sword Gmbh, 5650 Solingen, De |
-
1994
- 1994-07-13 GB GB9414092A patent/GB9414092D0/en active Pending
-
1995
- 1995-07-11 AT AT03000418T patent/ATE337141T1/en not_active IP Right Cessation
- 1995-07-11 NZ NZ290041A patent/NZ290041A/en not_active IP Right Cessation
- 1995-07-11 DE DE69535198T patent/DE69535198T2/en not_active Expired - Lifetime
- 1995-07-11 ES ES03000418T patent/ES2266644T3/en not_active Expired - Lifetime
- 1995-07-11 DK DK95926229T patent/DK0771254T3/en active
- 1995-07-11 ES ES95926229T patent/ES2191054T3/en not_active Expired - Lifetime
- 1995-07-11 EP EP03000418A patent/EP1306173B1/en not_active Expired - Lifetime
- 1995-07-11 EP EP95926229A patent/EP0771254B1/en not_active Expired - Lifetime
- 1995-07-11 JP JP8505088A patent/JPH10502845A/en active Pending
- 1995-07-11 AT AT95926229T patent/ATE236766T1/en not_active IP Right Cessation
- 1995-07-11 HU HU9700061A patent/HU220174B/en not_active IP Right Cessation
- 1995-07-11 DE DE69530297T patent/DE69530297T2/en not_active Expired - Lifetime
- 1995-07-11 CZ CZ0001997A patent/CZ298341B6/en not_active IP Right Cessation
- 1995-07-11 KR KR1019970700114A patent/KR100392288B1/en not_active IP Right Cessation
- 1995-07-11 PT PT03000418T patent/PT1306173E/en unknown
- 1995-07-11 CN CNB951941259A patent/CN1157280C/en not_active Ceased
- 1995-07-11 WO PCT/US1995/008634 patent/WO1996002369A1/en active IP Right Grant
- 1995-07-11 AU AU30058/95A patent/AU699297B2/en not_active Ceased
- 1995-07-11 BR BR9508270A patent/BR9508270A/en not_active IP Right Cessation
- 1995-07-11 CA CA002194278A patent/CA2194278C/en not_active Expired - Lifetime
- 1995-07-11 DK DK03000418T patent/DK1306173T3/en active
- 1995-07-11 MX MX9700299A patent/MX9700299A/en unknown
- 1995-07-11 PT PT95926229T patent/PT771254E/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5056222A (en) * | 1990-09-28 | 1991-10-15 | The Gillette Company | Shaving system |
US5092042A (en) * | 1990-09-28 | 1992-03-03 | The Gillette Company | Shaving system |
US5369885A (en) * | 1992-11-09 | 1994-12-06 | Warner-Lambert Company | Insert molded dynamic shaving system |
Also Published As
Publication number | Publication date |
---|---|
ES2191054T3 (en) | 2003-09-01 |
CN1157280C (en) | 2004-07-14 |
DK0771254T3 (en) | 2003-04-28 |
DE69530297T2 (en) | 2004-02-05 |
GB9414092D0 (en) | 1994-08-31 |
CA2194278C (en) | 2000-02-29 |
EP1306173A1 (en) | 2003-05-02 |
DE69535198D1 (en) | 2006-10-05 |
KR970704555A (en) | 1997-09-06 |
DE69530297D1 (en) | 2003-05-15 |
CN1152889A (en) | 1997-06-25 |
PT771254E (en) | 2003-08-29 |
ATE337141T1 (en) | 2006-09-15 |
EP0771254A1 (en) | 1997-05-07 |
DK1306173T3 (en) | 2006-10-09 |
DE69535198T2 (en) | 2007-08-23 |
WO1996002369A1 (en) | 1996-02-01 |
CZ298341B6 (en) | 2007-08-29 |
EP1306173B1 (en) | 2006-08-23 |
CA2194278A1 (en) | 1996-02-01 |
KR100392288B1 (en) | 2003-11-01 |
CZ1997A3 (en) | 1997-08-13 |
HUT77209A (en) | 1998-03-02 |
MX9700299A (en) | 1997-05-31 |
EP0771254B1 (en) | 2003-04-09 |
EP0771254A4 (en) | 1998-09-30 |
HU220174B (en) | 2001-11-28 |
JPH10502845A (en) | 1998-03-17 |
PT1306173E (en) | 2007-01-31 |
ES2266644T3 (en) | 2007-03-01 |
AU3005895A (en) | 1996-02-16 |
NZ290041A (en) | 1998-11-25 |
BR9508270A (en) | 1997-11-11 |
ATE236766T1 (en) | 2003-04-15 |
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