CA1322651C - Electric shaving apparatus - Google Patents
Electric shaving apparatusInfo
- Publication number
- CA1322651C CA1322651C CA000583614A CA583614A CA1322651C CA 1322651 C CA1322651 C CA 1322651C CA 000583614 A CA000583614 A CA 000583614A CA 583614 A CA583614 A CA 583614A CA 1322651 C CA1322651 C CA 1322651C
- Authority
- CA
- Canada
- Prior art keywords
- shaving
- drive
- housing
- spindle
- spindle portion
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
- B26B19/3853—Housing or handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
- B26B19/145—Cutters being movable in the cutting head
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
- B26B19/3853—Housing or handle
- B26B19/3866—Seals or dampers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Shavers And Clippers (AREA)
- Formation And Processing Of Food Products (AREA)
- Processing Of Meat And Fish (AREA)
- Beans For Foods Or Fodder (AREA)
Abstract
ABSTRACT:
Electric shaving apparatus.
The invention relates to a shaving apparatus comprising a housing which can be used as a grip and a shaving head comprising at least one shaving unit, the shaving unit being inclined relative to the housing, which shaving unit comprises a stationary shaving member with hair-entry apertures and a rotatable shaving member, the rotatable shaving member being coupled to an electric motor by means of a drive spindle comprising two portions which are pivotable relative to one another, i.e. a first drive-spindle portion coupled to the rotatable shaving member and a second drive-spindle portion coupled to the motor. The housing is provided with a bearing by means of which the first drive-spindle portion is held in an inclined position relative to the second drive-spindle portion.
Figure 4.
Electric shaving apparatus.
The invention relates to a shaving apparatus comprising a housing which can be used as a grip and a shaving head comprising at least one shaving unit, the shaving unit being inclined relative to the housing, which shaving unit comprises a stationary shaving member with hair-entry apertures and a rotatable shaving member, the rotatable shaving member being coupled to an electric motor by means of a drive spindle comprising two portions which are pivotable relative to one another, i.e. a first drive-spindle portion coupled to the rotatable shaving member and a second drive-spindle portion coupled to the motor. The housing is provided with a bearing by means of which the first drive-spindle portion is held in an inclined position relative to the second drive-spindle portion.
Figure 4.
Description
~2~
Electric shaving apparatus.
The invention relates to a shaving apparatus comprising a housing which functions as a grip and a shaving head comprising at least one shaving unit, the shaving unit being in an inclined position relative to the housing, which shaving unit comprises a stationary shaving member with hair-entry apertures and a rotatable shaving member~ the rotatable shaving member being coupled to an electric motor by means of a drive spindle comprising two portions which are pivotable relative to one another, including a first drive-spindle lO portion coupled to the rotatable shaving member and a second drive-spindle portion coupled to the motor.
Such a shaving apparatus is known, for example, from United States Patent Specification 4,257,161 (PHN 8940). It is desirable that during use of the apparatus the shaving 15 head or at least the shaving unit is in an inclined position relative to the part of the housing which serves as a grip, so that the shaving unit can be brought in contact with the - skin to be shaved without strenuous wrist action. In the known construction, where the axis of rotation of the motor 20 and the axis of rotation of the rotary shaving member have the same direction, this means that the motor must be arranged in the shaving head, so that the shaving head becomes bulky and the weight distribution of the shaver becomes unfavourable.
It is the object of the invention to mitigate these drawbacks. To this end it is characterized in that the housing is provided with a bearing by means of which the first drive-spindle portion is maintained in a position in which the direction of the axis of rotation of said portion 30 deviates from the direction of the axis of rotation of the second portion.
Special embodiments are defined in the appended .
:, . : , :
: ~ ' 1 3 6~ t~
subsidiary Claims.
Embodiments of the invention will now be described in more detail, by way of example, with reference to the Figures.
5Figure 1 is a front view of a shaving apparatus in accordance with the invention.
Figure 2 is a side view of the shaving apparatus shown in Figure 1.
Figure 3 is a sectional view taken on the line III-III in Figure 2.
Figure 4 is a sectional view taken on the line IV-IV
in Figure 1.
Figure 5 shows a modification of the embodiment shown in Figures 1 to 4.
15The shaving apparatus shown in Figures 1 to 4 comprises a housing 1 which functions as a grip, and a shaving head 2, the shaving head being inclined relative to the housing, so that the housing and the shaving head adjoin one another as a vee. The shaving head 2 comprises two 20 shaving units 3, each comprising a stationary shaving member 4 with hair-entry apertures 5 and a rotatable shaving member 6.
The inclined position of a shaving unit 3 relative to the housing 1 can be defined by the angle between the 25 axis of rotation 7 of a rotatable shaving member 6 and the longitudinal axis 8 of the housing (Figure 2). Even a comparatively small value of ~, for example ~= 10, provides a considerable improvement in shaving convenience.
The rotatable shaving members 6 are coupled to an 30 electromotor 10 by means of drive spindles 9. A drive spindle 9 of a construction known per se comprises a first drive-spindle portion 11 coupled to the rotatable shaving member 6 and a second drive-spindle portion 12 coupled to the motor 10. For this purpose the second drive-spindle portion 12 is 35 provided with a toothed ring 13 which is in mesh with the central toothed wheel 14 on the motor shaft 15. A compression spring 16 arranged between the drive-shaft portions 11 and 12 . .
. ~
~ 3~2~
provides the required pressure between the rotatable shaving members 6 and the stationary shaving nember 4.
The first drive-spindle portion 11 has a flange 17 which engages in the space 18 in the second drive-spindle portion 12 to transmit the rotation of the drive-spindle portion 12 to the drive-spindle portion 11. The drive-spindle portion 11 can telescope relative to the drive-spindle portion 12 against the action of the spring 16 and is also pivotable to a limited extent relative to the drive-spindle lO portion 12.
The housing 1 is provided with a bearing 19 for the first drive-spindle portion 11 to hold the first drive-spindle portion permanently in a tilted position relative to the second drive-spindle portion 12. This tilted position is 15 such that the axis of rotation 20 of this drive spindle portion 11 (Figure 4), which axis coincides substantially with the axis of rotation 7 of the rotatable shaving member 6, is oriented at the desired angle ~ relative to the axis of rotation 21 of the second drive spindle portion 12, which 20 substantially coincides with the longitudinal axis 8 of the housing 1.
Preferably, the bearing 19 is constructed as a part of an at least partly flexible sealing element 22. This sealing element comprises an annular rubber cup 23, which 25 surrounds the bearing 19, and a circumferential sealing lip 24. This lip engages a groove 25 in the inclined end wall 26 of the housing 1.
The sealing lip 24 is retained by means of an annular member 27 which forms part of a frame 28 which also 30 carries the motor 10. To this end the frame 28 comprises hoolcs 29 which engage underneath the motor 10. The frame comprises a frame plate 30 carrying the journals 31 for the second drive-spindle portions 12, so that these second drive-spindle portions are also mounted on the frame. This greatly 35 simplifies mounting of the motor 10 and the drive spindles 9, whilst at the same time the sealing element 22 is retained.
The sealing lip 24 mainly provides sealing relative to the .: , :
'. ' ; :.
:~ 3 ,~ ~ v v :~
upright walls 32 and 33 of the groove 25.
For driving the shaving units 3, which are inclined relative to the housing, the above construction utilizes the possibilities offered by the existing pivotal drive spindles 9. As a result of this special additional parts such as flexible shafts or bevel-gear transmissions are not needed.
The motor 10 can be accommodated in the housing 1, so that the centre of gravity is situated in the housing and the apparatus is convenient to handle. The shaving head 2 10 comprises only the shaving units 3 and parts of the drive spindles 9, which provides more freedom with respect to the design of the shaving head.
Alternatively, the bearing 19 can be mounted directly in the housing wall 26 of the housing. However, the 5 use of the sealing element 22 results in an apparatus which may be cleaned with water. The sealing of the drive-spindle portions 11 can be further improved by providing the rubber cup 23 with a lip 3~ adjoining the drive-spindle portion 11.
It is obvious that the invention may also be applied 20 to a dry-shaving apparatus as shown in Figure 5 without a shaving head which adjoins the housing in accordance with a vee, but in which the shaving unit 3 is merely inclined relative to said housing 1.
-
Electric shaving apparatus.
The invention relates to a shaving apparatus comprising a housing which functions as a grip and a shaving head comprising at least one shaving unit, the shaving unit being in an inclined position relative to the housing, which shaving unit comprises a stationary shaving member with hair-entry apertures and a rotatable shaving member~ the rotatable shaving member being coupled to an electric motor by means of a drive spindle comprising two portions which are pivotable relative to one another, including a first drive-spindle lO portion coupled to the rotatable shaving member and a second drive-spindle portion coupled to the motor.
Such a shaving apparatus is known, for example, from United States Patent Specification 4,257,161 (PHN 8940). It is desirable that during use of the apparatus the shaving 15 head or at least the shaving unit is in an inclined position relative to the part of the housing which serves as a grip, so that the shaving unit can be brought in contact with the - skin to be shaved without strenuous wrist action. In the known construction, where the axis of rotation of the motor 20 and the axis of rotation of the rotary shaving member have the same direction, this means that the motor must be arranged in the shaving head, so that the shaving head becomes bulky and the weight distribution of the shaver becomes unfavourable.
It is the object of the invention to mitigate these drawbacks. To this end it is characterized in that the housing is provided with a bearing by means of which the first drive-spindle portion is maintained in a position in which the direction of the axis of rotation of said portion 30 deviates from the direction of the axis of rotation of the second portion.
Special embodiments are defined in the appended .
:, . : , :
: ~ ' 1 3 6~ t~
subsidiary Claims.
Embodiments of the invention will now be described in more detail, by way of example, with reference to the Figures.
5Figure 1 is a front view of a shaving apparatus in accordance with the invention.
Figure 2 is a side view of the shaving apparatus shown in Figure 1.
Figure 3 is a sectional view taken on the line III-III in Figure 2.
Figure 4 is a sectional view taken on the line IV-IV
in Figure 1.
Figure 5 shows a modification of the embodiment shown in Figures 1 to 4.
15The shaving apparatus shown in Figures 1 to 4 comprises a housing 1 which functions as a grip, and a shaving head 2, the shaving head being inclined relative to the housing, so that the housing and the shaving head adjoin one another as a vee. The shaving head 2 comprises two 20 shaving units 3, each comprising a stationary shaving member 4 with hair-entry apertures 5 and a rotatable shaving member 6.
The inclined position of a shaving unit 3 relative to the housing 1 can be defined by the angle between the 25 axis of rotation 7 of a rotatable shaving member 6 and the longitudinal axis 8 of the housing (Figure 2). Even a comparatively small value of ~, for example ~= 10, provides a considerable improvement in shaving convenience.
The rotatable shaving members 6 are coupled to an 30 electromotor 10 by means of drive spindles 9. A drive spindle 9 of a construction known per se comprises a first drive-spindle portion 11 coupled to the rotatable shaving member 6 and a second drive-spindle portion 12 coupled to the motor 10. For this purpose the second drive-spindle portion 12 is 35 provided with a toothed ring 13 which is in mesh with the central toothed wheel 14 on the motor shaft 15. A compression spring 16 arranged between the drive-shaft portions 11 and 12 . .
. ~
~ 3~2~
provides the required pressure between the rotatable shaving members 6 and the stationary shaving nember 4.
The first drive-spindle portion 11 has a flange 17 which engages in the space 18 in the second drive-spindle portion 12 to transmit the rotation of the drive-spindle portion 12 to the drive-spindle portion 11. The drive-spindle portion 11 can telescope relative to the drive-spindle portion 12 against the action of the spring 16 and is also pivotable to a limited extent relative to the drive-spindle lO portion 12.
The housing 1 is provided with a bearing 19 for the first drive-spindle portion 11 to hold the first drive-spindle portion permanently in a tilted position relative to the second drive-spindle portion 12. This tilted position is 15 such that the axis of rotation 20 of this drive spindle portion 11 (Figure 4), which axis coincides substantially with the axis of rotation 7 of the rotatable shaving member 6, is oriented at the desired angle ~ relative to the axis of rotation 21 of the second drive spindle portion 12, which 20 substantially coincides with the longitudinal axis 8 of the housing 1.
Preferably, the bearing 19 is constructed as a part of an at least partly flexible sealing element 22. This sealing element comprises an annular rubber cup 23, which 25 surrounds the bearing 19, and a circumferential sealing lip 24. This lip engages a groove 25 in the inclined end wall 26 of the housing 1.
The sealing lip 24 is retained by means of an annular member 27 which forms part of a frame 28 which also 30 carries the motor 10. To this end the frame 28 comprises hoolcs 29 which engage underneath the motor 10. The frame comprises a frame plate 30 carrying the journals 31 for the second drive-spindle portions 12, so that these second drive-spindle portions are also mounted on the frame. This greatly 35 simplifies mounting of the motor 10 and the drive spindles 9, whilst at the same time the sealing element 22 is retained.
The sealing lip 24 mainly provides sealing relative to the .: , :
'. ' ; :.
:~ 3 ,~ ~ v v :~
upright walls 32 and 33 of the groove 25.
For driving the shaving units 3, which are inclined relative to the housing, the above construction utilizes the possibilities offered by the existing pivotal drive spindles 9. As a result of this special additional parts such as flexible shafts or bevel-gear transmissions are not needed.
The motor 10 can be accommodated in the housing 1, so that the centre of gravity is situated in the housing and the apparatus is convenient to handle. The shaving head 2 10 comprises only the shaving units 3 and parts of the drive spindles 9, which provides more freedom with respect to the design of the shaving head.
Alternatively, the bearing 19 can be mounted directly in the housing wall 26 of the housing. However, the 5 use of the sealing element 22 results in an apparatus which may be cleaned with water. The sealing of the drive-spindle portions 11 can be further improved by providing the rubber cup 23 with a lip 3~ adjoining the drive-spindle portion 11.
It is obvious that the invention may also be applied 20 to a dry-shaving apparatus as shown in Figure 5 without a shaving head which adjoins the housing in accordance with a vee, but in which the shaving unit 3 is merely inclined relative to said housing 1.
-
Claims (3)
1. A shaving apparatus comprising a housing which functions as a grip and a shaving head comprising at least one shaving unit, the shaving unit being in an inclined position relative to the housing, which shaving unit comprises a stationary shaving member with hair-entry apertures and a rotatable shaving member, the rotatable shaving member being coupled to an electric motor by means of a drive spindle comprising two portions which are pivotable relative to one another, including a first drive-spindle portion coupled to the rotatable shaving member and a second drive-spindle portion coupled to the motor, characterized in that the housing is provided with a bearing by means of which the first drive-spindle portion is maintained in a position in which the direction of the axis of rotation of said portion deviates from the direction of the axis of rotation of the second portion.
2. A shaving apparatus as claimed in Claim 1, characterized in that the bearing forms part of an at least partly flexible sealing element arranged between the housing and the shaving head.
3. A shaving apparatus as claimed in Claim 2, characterized in that both the motor and the second drive-spindle portion are carried by a frame which can be mounted in the housing and which also retains the sealing element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8702812A NL8702812A (en) | 1987-11-24 | 1987-11-24 | ELECTRIC RAZOR. |
| NL8702812 | 1987-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1322651C true CA1322651C (en) | 1993-10-05 |
Family
ID=19850967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000583614A Expired - Fee Related CA1322651C (en) | 1987-11-24 | 1988-11-21 | Electric shaving apparatus |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0318103B1 (en) |
| JP (1) | JPH01166791A (en) |
| AT (1) | ATE74546T1 (en) |
| CA (1) | CA1322651C (en) |
| DE (1) | DE3869922D1 (en) |
| ES (1) | ES2032003T3 (en) |
| HK (1) | HK120993A (en) |
| NL (1) | NL8702812A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT398926B (en) * | 1992-07-24 | 1995-02-27 | Philips Nv | SHAVER WITH A HAIR DUST SEAL |
| JP4341887B2 (en) * | 2003-01-23 | 2009-10-14 | 九州日立マクセル株式会社 | Electric razor |
| JP5021490B2 (en) * | 2004-12-22 | 2012-09-05 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Rotating shaver with improved drive and support structure for shaving head |
| ES2324249B1 (en) * | 2006-07-06 | 2010-05-13 | Universidad De Alcala | ELECTRIC SHAKER WITH EMISSION OF ULTRASOUNDS. |
| EP4215320A1 (en) * | 2022-01-21 | 2023-07-26 | Koninklijke Philips N.V. | Sealing an opening through which a drive shaft extends in a shaving unit for a rotary electric shaver |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL298906A (en) * | 1963-10-07 | |||
| NL6509285A (en) * | 1965-07-17 | 1967-01-18 | ||
| DE3415124A1 (en) * | 1984-04-21 | 1985-10-31 | Braun Ag, 6000 Frankfurt | GASKET FOR A DRY SHAVER |
-
1987
- 1987-11-24 NL NL8702812A patent/NL8702812A/en not_active Application Discontinuation
-
1988
- 1988-11-21 JP JP63292528A patent/JPH01166791A/en active Pending
- 1988-11-21 CA CA000583614A patent/CA1322651C/en not_active Expired - Fee Related
- 1988-11-23 EP EP88202633A patent/EP0318103B1/en not_active Expired - Lifetime
- 1988-11-23 ES ES198888202633T patent/ES2032003T3/en not_active Expired - Lifetime
- 1988-11-23 DE DE8888202633T patent/DE3869922D1/en not_active Expired - Lifetime
- 1988-11-23 AT AT88202633T patent/ATE74546T1/en not_active IP Right Cessation
-
1993
- 1993-11-04 HK HK1209/93A patent/HK120993A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3869922D1 (en) | 1992-05-14 |
| ES2032003T3 (en) | 1993-01-01 |
| ATE74546T1 (en) | 1992-04-15 |
| EP0318103B1 (en) | 1992-04-08 |
| HK120993A (en) | 1993-11-12 |
| NL8702812A (en) | 1989-06-16 |
| EP0318103A1 (en) | 1989-05-31 |
| JPH01166791A (en) | 1989-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |