JPH0217546Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a reciprocating electric shaver with an improved outer blade mounting structure.

[Conventional technology]

FIG. 6 shows a part of a conventional reciprocating electric shaver. Reference numeral 1 denotes a main body case that houses a motor 2, a battery 3, an inner blade reciprocating drive mechanism 4, etc., and this is a front case 5. It is formed by connecting the rear case 6. Numerals 7 and 8 are screws that connect the upper parts of both cases 5 and 6, and one screw 8 serves as a pivot for a movable outer cutter locking body 9 that is rotatably sandwiched between the upper parts of both cases 5 and 6. There is. A fixed outer cutter locking part 10 is integrally provided on the upper part of the main body case 1 on the side opposite to the locking body 9. Further, an inner blade body 11 is attached to the mechanism 4. Furthermore, an outer blade 12 is attached to the upper part of the main body case 1 and is removably engaged with the locking body 9 and the locking part 10.
is attached, and this outer cutter body 12 is attached and detached when cleaning beard shavings, etc. By the way, outer blade body 1
Since the movable outer cutter retaining body 9 is frequently attached and detached, there is a risk that the movable outer cutter retaining body 9 may be damaged.

[Problem that the invention attempts to solve]

However, if the movable outer cutter locking body 9 is damaged and needs to be repaired and replaced, with conventional electric shavers, the screws 6, 7, etc. must be removed and the main body case 1 must be disassembled, which is a cumbersome task. Ta. In particular, in the case of a water-washable electric shaver, a waterproof gasket is sandwiched between the two cases 5 and 6, which not only makes the work more troublesome, but also poses a concern that the waterproofness may be impaired after reassembly. Furthermore, since the movable outer blade locking body 9 passes through the main body case 1, the inside and outside of the main body case 1 are communicated through the penetrating portion, and therefore, beard shavings, dirt, etc. They may get inside and cause a malfunction.

[Means for solving problems]

In order to solve the above problems, the present invention has a main body case on which the outer blade is detachably attached to the upper part, which is formed by a pair of cases, and one of these cases is attached to the outer blade mounting side. forming a surface, and forming a recessed mounting groove partitioned from the inside of the main body case at the end of this surface,
An elastically deformable outer blade locking body is inserted into and removably into the mounting groove from the outside of the one case by protruding the outer blade locking portion and the operating portion thereof to the outside of the one case. The blade locking body is attached to the one case by means of a retaining body which is removably attached to the one case from the outside.

[Effect]

According to this reciprocating electric shaver, the shaver can be used without being sandwiched between the pair of cases that form the main body case.
An outer cutter locking body can be attached to a mounting groove recessed in the outer surface of one of the cases, and the outer cutter body can be attached using this locking body. If the outer blade locking body for attaching the outer blade body is damaged and needs to be replaced, remove the retaining body from the outside of one of the cases above, and then lock the outer blade locking body from the mounting groove. All you have to do is pull out the body, fit a new outer cutter locking body into the mounting groove, and attach the retaining body again. In this way, the outer blade locking body can be replaced without disassembling the main body case, so
You can do that work easily. The mounting groove for attaching the outer blade locking body is separated from the inside of the main body case, so there is no communication between the mounting groove and the inside of the main body case. There is no possibility of intrusion of beard debris etc.

〔Example〕

A first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

In the figure, 21 is, for example, a front case 22 and a rear case 23.
This is a resin main body case made by connecting the two. The connection between both cases 22 and 23 is achieved by, for example, rear case 22
An upper screw 25 is threaded through the front case 22 into a pair of connecting bosses 24 provided in the front case 2, and both cases 2
This is done by lower screws provided on the lower side of the numbers 2 and 23 (not shown).

The main body case 21 includes a motor 26, an inner blade reciprocating mechanism 27 operated by the motor 26,
A PC board 28, a battery (for example, a storage battery), etc. (not shown) are built-in. The mechanism 27 includes an eccentric drive body 30 fixed to the rotating shaft 29 of the motor 26.
An eccentric drive shaft 31 is protruded from a position eccentric to the rotating shaft 29, and this shaft 31 is connected to a resin drive body 32.
It is formed by being engaged with a groove (not shown). The driving body 32 is provided with its both ends (only one shown) fixed to the upper part of the front case 22 with screws 33, and both ends of the driving body 32 form thin flexible deformable parts 32a, Due to the flexible deformation of this portion 32a, the hard portion 32b between these portions is reciprocated left and right in accordance with the eccentricity. A part of the hard portion 32b is attached to the front case 22.
The inner cutter body 34 protrudes from the outer cutter mounting side surface formed on the front side of the upper part of the cutter, and an inner cutter body 34 is attached to the protruding end thereof. Note that 35 is a push-up spring, and 36 is a drive unit sealing material provided because the electric shaver of this embodiment is washable. This sealing material 36 allows the reciprocating movement of the driving body 32 by its elastic deformation, and this sealing material 36 is attached to the surface on the outer cutter mounting side and to this surface with a pullout fixed to this surface by the upper screw 25. It is attached between the stopper body 37 and the stopper body 37 .

An outer cutter locking portion 38 is integrally formed at one end of the surface of the front case 22 on the outer cutter mounting side. At the same time, a mounting groove 39 that is partitioned from the main case 21 without communicating with the inside of the main case 21 is recessed at the other end of the surface of the outer blade mounting side of the front case 22. An outer cutter locking body 40 is removably fitted into this groove 39. This locking body 40 is made of elastically deformable resin, and includes an operating portion 41 that protrudes to the outside of the front case 22, and an outer cutter locking portion 4 that passes through the retainer 37 and faces the outer blade locking portion 38.
It has 2 integrally. The outer cutter locking body 40 is prevented from coming off from the mounting groove 39 by the retaining body 37.

Further, an end portion (not shown) of the driver 32 is screwed to the front case 22 bypassing the mounting groove 39. The upper part of the front case 22 is removably engaged with the outer blade locking parts 38 and 42, and the outer blade body 4
3 is installed. The outer blade body 43 has the engaging protrusion 4
An outer cutter plate 46, on which the inner cutter body 34 slides, is attached to an outer cutter case 45 having an inner cutter body 4.

In addition, in the figure, 47 is a beard waste outlet, 48 is a rotatable outlet cover that opens and closes the outlet of the outlet 47,
49 is a pivot, 50 is a lid operating body made of resin that is reciprocatably provided on the outer surface of the rear case 23, and 51 is an annular waterproof gasket attached to the mating surface of both cases 22 and 23, and these and the above sealing material 36 and the like are unique to water-washable electric shavers. When washing with water, pull down the lid operating body 50 and
After opening the outlet cover 48 as shown in the dashed line,
Water is injected from the outside of the outer blade body 46, and the water is poured into the front case 22.
and the outer blade body 43 while passing through the space between the outlet 4 and the outer blade body 43.
Discharge from 7.

In this electric shaver, the outer cutter body 43 is attached to the upper part of the main body case 21 by removably engaging the engagement protrusion 44 with the outer cutter locking parts 38 and 42,
During this attachment and detachment, the outer cutter locking body 40 undergoes elastic deformation, and when the outer cutter body 43 is removed, the operating section 4
It is elastically deformed by pressing 1. and,
If the outer cutter locking body 40 is damaged and needs to be replaced, first remove the upper screw 25, remove the retaining body 36, and open the mounting groove 39. In this state, both cases 22 and 2 are connected by lower screws (not shown).
3 are connected, the main body case 21 will not be disassembled even if the upper screw 25 is removed.
Next, the outer cutter locking body 40 is pulled out from the mounting groove 39 and a new outer cutter locking body 40 is fitted into the mounting groove 39. Finally, the retaining body 37 is attached using the upper screw 25, and at the same time, the upper portions of both cases 22 and 23 are connected using this screw 25. Furthermore, since the mounting groove 39 for attaching the outer cutter locking body 40 is partitioned from the inside of the main body case 21, the mounting groove 39 and the inside of the main body case 21 do not communicate with each other, so that the outer cutter locking body 40 can be attached easily. This prevents beard debris from entering the inside of the main body case 40 through the parts. Therefore, it is possible to prevent the electric razor from malfunctioning due to beard debris or the like entering the inside.

4 and 5 show a second embodiment of the invention.

In this embodiment, the outer blade locking body 40 does not include an operating section, and the outer blade locking section 42 and the closing section 5
2 in the case body. Closing part 5
2 is in contact with the surface of the front case 22 on the outer blade mounting side and closes the mounting groove 39. and,
This locking body 40 is a retaining body 53 which also serves as an operating section.
It is attached to the front case 22 by. The retaining body 53 is removably inserted from the outside into a through hole 54 provided in the upper side surface of the front case 22 in communication with the mounting groove 39, and the engaging protrusion 55 at the tip thereof is inserted into the outer cutter retaining body 40. It is removably engaged with an engagement hole 56 provided in the. Further, numeral 57 in FIG. 4 is a seal holder through which the upper screw 25 passes. Note that the other structures are the same as those of the first embodiment.

In this embodiment, by strongly pulling the retaining body 53 from the outside, the engagement between the engagement protrusion 55 and the engaging hole 56 is disengaged due to their flexural deformation, and the retaining body 53 is removed. The outer cutter locking body 40 can be pulled out from the mounting groove 39 at the same time. In addition, the newly replaced outer cutter locking body 40 can be fixed by inserting the retaining body 53 into the through hole 5 after inserting it into the mounting groove 39.
4 from the outside, the engagement protrusion 55 of the outer cutter locking body 40 inserted while being positioned by the through hole 54 is inserted into the engagement hole 56 and engaged. Therefore, there is no need to loosen the connecting screw 25 or the like when replacing the outer cutter locking body 40.
In addition, when removing the outer cutter body 43, the outer cutter locking body 40 may be elastically deformed by pushing the retaining body 53, which is an operating section.

Further, according to this embodiment, since the outer cutter locking body 40 has the closing portion 52, this prevents debris from accumulating in the mounting groove 39 and hindering the deformation of the outer cutter locking body 40. Thus, the outer cutter locking body 40 can be operated reliably.

Each of the above embodiments is configured as described above, but
The present invention can also be applied to electric shavers that cannot be washed with water. In addition, when implementing the present invention, unless it is contrary to the gist of the invention, the specific structure, shape, position, etc. of the main body case, outer blade body, mounting groove, outer blade locking body, retaining body, etc. It goes without saying that the materials and the like are not limited to the above-mentioned embodiments, and can be configured and implemented in various ways.

[Effect of idea]

The present invention, which has the gist of the structure of the above-mentioned utility model registration claim, has an outer blade locking body that is provided without being sandwiched between a pair of cases, and a retaining body that is attached and detached from the outside of the main case. The outer blade locking body can be easily replaced without disassembling the main body case because it can be installed and removed from the mounting groove recessed in the outer surface of the main body case. This prevents beard debris from entering the case, which has a great practical effect.

[Brief explanation of drawings]

Figures 1 to 3 show a first embodiment of the present invention, with Figure 1 being a cross-sectional plan view of the upper part of the electric shaver, Figure 2 being a longitudinal cross-sectional side view of the upper part of the electric shaver, and Figure 3 being the outer cutter body and FIG. 3 is a front view of the upper part of the electric shaver with the inner blade removed. 4 and 5 show a second embodiment of the present invention, in which FIG. 4 is a cross-sectional plan view of the upper part of the electric shaver, and FIG. 5 is an exploded perspective view of the outer cutter locking body and the retaining body. FIG. 6 is a partial sectional view showing a conventional example. 21...Main case, 22...Front case, 23
... Rear case, 37, 53 ... Retainer, 39
...Mounting groove, 40...Outer blade locking body, 41...Operation section, 42...Outer blade locking part, 43...Outer blade body, 5
2...Closed body.

Claims (1)

[Claims for Utility Model Registration] (1) The main body case to which the outer cutter is removably attached to the upper part is formed by a pair of cases, and one of these cases has a surface on the side where the outer cutter is attached. a mounting groove partitioned from the inside of the main body case is recessed in the end portion of this surface, and an elastically deformable outer cutter locking body is formed;
The outer blade locking portion and the operating portion thereof are made to protrude outside the one case, and are removably fitted into the mounting groove from the outside of the one case, and the outer blade locking body is inserted into the one case. A reciprocating electric shaver, characterized in that the reciprocating electric shaver is attached to one of the cases by a retaining body that is detachably provided from the outside. (2) In the statement of claim (1) of the utility model registration, the outer cutter locking body is characterized in that it has an integral closing part that contacts the outer cutter mounting side surface and closes the mounting groove. A reciprocating electric razor.