JPS6037749B2 - electric razor - Google Patents

Description

[Detailed description of the invention] This invention relates to an electric shaver.

Conventional caps have a separate protective cap for the outer cutter, which has the drawbacks of inconvenience in attaching and removing the cap and the risk of damage to the outer cutter if lost. Therefore, an object of the present invention is to provide an electric shaver that does not require a protective cap and is easy to store.

An embodiment of the invention is shown in FIGS. 1 to 8.

That is, this electric razor consists of a razor body 1 and a blade part 2. The razor body 1 has a cylindrical shape with both sides open, and has a partition plate 3 at the end of the blade part. In the remaining razor main body 1, a rotating shaft of a face gear 5 is attached to a side wall by a partition plate 3, and a motor 6 is attached to the face gear 5.

The face gear 5 has an eccentric shaft 7 protruding from the center hole 9 at the base end of the driving village 8 having flexural elasticity, and inserts the leading end of the driving village 8 into the blade part from the center hole 4a of the partition plate 3. protrudes into the storage section 4,
Its tip 8a is bent into a hook shape. Also motor 6
A pinion 10 is attached to the motor shaft 6a and meshed with the face gear 5. Anode plate 11 is attached to the rear end surface of motor 6.
is attached, a battery 12 is housed from the lower end entrance 1a of the razor body 1, its anode contacts the anode plate 11, and a cap 13 is attached to the eel mouth la to close it, and a cathode formed on the inner surface of the cap 13 A spring 14 presses against the cathode of the battery 12 and fixes the battery 12. The anode plate 11 is electrically connected to one terminal of the motor 6, and from the other terminal of the motor 6, a conductive spring 15 passes through the side of the motor 6 and is located near the partition plate 3, while a connecting fitting 16 is fixed to the inner surface of the razor body 1, one end of which is in electrical contact with the cathode spring 14, and the other end is located on the partition plate 3 and supported by the conductive spring 15, thereby opening the motor drive circuit. . A through hole 17 is formed in the partition plate 3 opposite to the tip of the conductive spring 15. The blade storage section 4 of the razor body 1 has engagement recesses 18 and 18' for storage formed on one opposing surface near the partition plate 3 on its inner surface, and a seal opening section 4b.
Engagement recesses 19 and 19' for protrusion are formed on one opposing surface of the holder, and one of the recesses 19 and 19' is formed as an engagement recess 19'' for an eclipse posture.

The blade portion 2 is composed of a cylindrical outer blade holder 20 having an outer diameter that is inserted into the blade storage portion 4, and an inner blade 21.

The outer cutter holder 20 has a substantially semi-cylindrical opening 22 formed on its side surface, and the reticulated outer cutter 3 is inserted into the opening 22, and holes 23' formed on both sides are engaged with projections 22' on the edge of the mouth. Further, a driving hole 24 is formed in the center of one end of the outer blade holder 20, and a switch protrusion 25 passing through the through hole is formed, and a pair of locking protrusions 26, 26' are formed on the side surface of the outer blade holder 20. Also, a collar 27 is formed at the other end to fit into the closing green of the blade storage section 4. The inner cutter 21 has a plurality of inner cutter blades 28 arranged at regular intervals on an inner cutter body 21a.
1 imitation receiving protrusion 29 on both sides at the longitudinal center of the back side of the
, 29', and a power transmission hole 30 is formed at the lower end. This inner cutter 21 is inserted into the outer cutter holder 20 and the inner cutter blade 28 is brought into contact with the inner surface of the outer cutter, and the spring receiving protrusion 29,
29' and the protrusion 3 of the outer blade holder 20 formed opposite thereto.
Push-up springs 32 and 32' are compressed and installed between the outer cutters 1 and 31' to elastically hold the inner surface of the outer cutter. 1 and 4 show the blade portion 2 in its stored state.

In this case, the drive punch 8 protruding into the blade storage portion 4 is located on the back side of the inner blade body 21a, the tip 8a is located at the upper end of the inner blade body 21a, and passes between the push-up springs 32, and switches The protrusion 25 passes through the through hole 17 and pushes the conductive spring 15 to break contact with the connection fitting 16 (switch off), and the locking protrusions 26, 26' are locked in the storage locking recesses 18, 18'. The collar 27 is prevented from coming out, and the collar 27 is engaged with the entrance part 4b of the blade storage part 4 of the razor main body 1, thereby closing the opening part 4b. 2 and 6 show the protruding state of the blade.

In this case, when the collar 27 of the outer blade holder 20 is grasped and pulled, the wall of the housing section is bent due to the resin elasticity, and the locking protrusions 26, 2
6' is removed from the locking recesses 18, 18'. Also, the driving pestle 8
The tip portion 8a is pushed by the inner blade body 21a and is bent, and comes off from the upper end path of the inner blade body 21a. Also, since the switch protrusion 26 is removed from the through hole 17, the guide spring 15 returns to contact the connection fitting 16, the motor shaft 6a rotates, the face gear 5 rotates, and the rotation of the eccentric shaft 7 causes the drive punch 8 is supported by the central hole 4a and reciprocates in the vertical direction. When the locking protrusions 26, 26' are locked in the projection locking recesses 19, 19', the projecting posture is maintained, and at the same time, the tip 8a of the drive village 8 is locked in the power transmission hole 301 of the inner blade body 21a. The inner blade 28 slides back and forth on the inner surface of the outer cutter 23. Therefore, when a beard enters the cutting edge of the outer cutter 23, the inner cutter blade 28 and the outer cutter 23 cooperate to cut the beard. 3 and 5 show the blade portion 2 in an awkward position relative to the razor body 1 for ease of use.

When the outer blade side of the outer blade holder 20 is pushed to the opposite side, the locking protrusion 26
The locking protrusion 26 is disengaged from the protruding locking recess 19 with the fulcrum at ``, and is locked and held in the forehead posture locking recess 19''. With this structure, this electric shaver has the following effects. be.

That is, since the 01 blade part 2 can be stored in the razor body 1, the blade protection cover that conventional electric shavers have is no longer necessary, and the blade can be reliably protected when stored.

[21] Since the blade part 2 can be swung, it can be adjusted to various areas where beards grow, such as the face and under the chin, making it easy to use.

'31 By arranging the push-up springs 32, 32' in a manner distributed with respect to the center line (longitudinal direction) of the inner cutter 21, the outer cutter 23
The elastic force against the inner cutter 21 becomes uniform, and since the driving village 8 can pass between the push-up springs 32 and 32', it becomes possible to drive the inner cutter 21 along the center line without impairing the cutting quality.

'4} By inserting and removing the blade part 2, the switch turns on and off.
This eliminates the need for a switch handle, which is advantageous in terms of cost. It also prevents the switch from being turned on accidentally when transporting or carrying it. ■ Furthermore, since the blade part 2 can be attached and detached from the razor body 1, it is possible to wash the blade part 2 with water using it as a block, and there is no need for the razor body 1 to have a waterproof structure. A razor body is provided with a drive unit such as the like, and the razor body is arranged in the razor body so as to be able to be housed and protruded.In the protruding state, the inner blade drive pestle can be oscillated relative to the razor body 1, and the inner blade drive pestle is movable in the direction of the oscillation. Since the blade has a flexible blade, there is no need for a conventional protective cover, and the blade can be reliably protected when stored without damaging the outer blade.Also, the blade can swing, It is easy to use and can be adjusted to areas where beard grows, such as the face and under the chin.

Furthermore, the inner blade drive village has flexibility in the direction of swing of the blade, so even if the blade protrudes into the razor body or swings, the displacement is absorbed by the inner blade drive village, so the motor This has the effect of lowering the load applied to the drive parts such as.

[Brief explanation of the drawing]

FIG. 1 is a side view of an embodiment of the present invention in a state where the blade is stored;
Fig. 2 is a side view of the blade in the protruding state, Fig. 3 is a side view of the blade in the resting position, Fig. 4 is a cross-sectional view of the blade in the retracted state, and Fig. 5 is a cross-sectional view of the blade in the folded position. FIG. 6 is a sectional view of the blade in a protruding state, FIG. 7 is a sectional view taken along line W--W in FIG. 4, and FIG. 8 is an exploded perspective view. 1...Razor body, 2...Blade part, 4
...Blade storage section, 8...Driving punch, 18, 1
To 8', 19, 19', 19...Latching recess, 20
...Outer blade holder, 21...Inner blade, 25
...Switch protrusion, 26...Latching protrusion. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Scope of Claims] 1. A razor body with a drive unit such as a motor inside, and an inner blade drive rod which is disposed in the razor body so as to be able to be housed and protruded, and which can swing relative to the razor body in the protruded state. An electric shaver includes a blade section that is flexible in the direction of swing. 2. The blade portion has an outer cutter on the side surface in the protruding direction, and the inner cutter inscribed in the outer cutter is supported by push-up springs at the center position in the longitudinal direction and at both ends in the width direction, and the blade portion is stored in the razor body. 2. The electric shaver according to claim 1, wherein the inner cutter drive rod protruding from the blade portion passes between the push-up springs when the blade portion is in the retracted state. 3. The electric shaver according to claim 2, wherein a motor drive circuit for the razor body is opened depending on the stored state of the blade portion. 4. The electric shaver according to claim 3, wherein the blade portion is retracted and protruded by engaging the recesses and recesses by utilizing the elasticity of the razor body, and is also attached and detached.