JPS61103471A - Reciprocal electric razor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention particularly relates to a blade housing structure in a reciprocating electric shaver.

(Prior Art) Since the blade of an electric shaver is functionally provided at the tip of the main body, the blade is usually covered with a cap having approximately the same shape as the blade to protect the blade.

This cap is generally made of a synthetic resin material or the like, and when it is placed on the blade, it elastically engages with the main body and is detachable.

(Problems to be Solved by the Invention) However, such conventional electric razors have many problems as follows.

First, since a cap separate from the main body is required, it is easy to lose the cap, and it is also easy to cause damage such as cracking.

Second, if you carry it around on a hanger, etc., the cap may come off from the main body and damage the blade, making it impossible to protect the blade sufficiently, and furthermore, the blade may damage other objects nearby. There is.

Thirdly, it is troublesome to put on and take off the cap, and especially when using it in a car etc. when going out, there is an inconvenience such as there is no place to put the cap and you have to carry it by hand.

Therefore, the present invention eliminates the need for such a cap and is highly portable, especially when reciprocating type electricity is used.
It offers miso.

(Means and operations for solving the problems) In order to solve the above problems, the present invention is applied to a reciprocating electric shaver 1 as shown in FIG. The blade unit 3 includes a blade unit 3 having a blade 2 at one end, and a pair of opposing left and right arms 4 and 5 (see Fig. 2), and the blade unit 3 has a blade 2 at one end. Both sides of the unit 3 are supported so as to be rotatable and can be displaced by a predetermined stroke, and are arbitrarily held at least in a use position and a non-use position, and the blade of the blade unit 3 is rotated and displaced from the use position. It is characterized by comprising a main body 6 having a storage recess 7 for storing the part 2 in the non-use position.

(Embodiments) Preferred embodiments of the present invention will be described below with reference to the drawings.

First, the overall external configuration of the reciprocating electric shaver 1 will be described based on FIG. This figure is an external front view of the razor according to the present invention. 1 The razor 1 has a generally rectangular shape from the front and has a predetermined thickness. The main body 6 includes a main body case 6a on its outer shell. The lower half is a main body base 8, and a power switch operation plate 9 having a right-angled triangular shape when viewed from the front is arranged on the right side of a front plate 6b forming a flat surface of the base 8. This operation plate 9 has a similar shape that is slightly larger than the operation plate 9 formed on the front plate 6b, and is accommodated in a recess 6C with the right angle section located at the upper right so that the oblique sides can slide together. Turn the lower part OFF. Incidentally, on the surface of the operation plate 9, anti-slip irregularities are formed, for example, at a substantially right angle to the oblique side. As a result, the operation plate 9
The operating plate 9 is arranged on the trajectory of moving the thumb up and down while the user is holding it in his/her hand, and the operating plate 9 can be operated using the natural position and movement of the thumb.

Further, a battery inlet/outlet cap 10 is provided at one portion of the base 8, and a brush 11 is detachably provided at the other side (see FIG. 2).

On the other hand, a pair of left and right arm portions 4.5 are integrally formed on both sides of the base portion 8 and extend continuously upward in terms of design, and a front rectangular blade surrounded by the arm portions 4, 5 and the base portion 8 is formed. A unit storage space S is formed (FIG. 2).

On the other hand, the blade unit 3 has a size and shape that fills the storage space S as a whole, and includes a unit case 3a on its outer shell and an outer blade frame 13 with a removable outer blade 12 attached to the upper end of the unit case 3a. The centers of both measuring parts of this blade unit 3 are rotatably supported at substantially the center of the inner side of each arm part 4.5. A reciprocating type blade part 2 is provided at the upper end of the blade unit 3, and a laterally elongated knob 15.16 protrudes from the front and rear surfaces of the blade unit 3. By pressing this knob 15.16, the blade can be opened. The outer cutter frame 13 of section 2 can be removed. Note that the lower end portion 3b of the unit 3 is formed to have approximately the same shape as the blade portion 2, and preferably the upper and lower portions of the unit 3 are approximately symmetrical (see FIG. 10).

Next, the internal structure will be specifically explained with reference to FIGS. 1 to 7. Fig. 1 is an internal rear view of the reciprocating electric shaver according to the present invention, Fig. 2 is an internal rear view of the main body, Fig. 3 is a central longitudinal sectional side view (direction of arrow A in Fig. 1), FIGS. 4 to 7 are side views of the beam-l plate and the rotating contact plate.

First, the main body 6 side will be explained with reference to FIG. 2. 1
111 Arm parts 4, 5 are hollow inside, and lead plates 20, 21, etc. along the elongated direction are attached to the inner walls of the front and rear surfaces of each arm part 4, 5 facing each other (opposing side does not appear in Figure 2). This lead plate, for example 20, is formed of a conductor, and as shown in FIG. 4, two intermediate portions of a long and narrow plate-like member have locking boss portions 20a and 20b which are curved and bulged in a semicircular shape at predetermined positions.
, and furthermore, through-holes 20c and 2 are used for attachment to the arm part.
It is made by drilling 0d. Note that the other lead plates 21... are formed in the same manner. Therefore, the lead plates 20, 23 in one arm portion 4 are arranged as shown in FIG. 4, and the respective boss portions form a pair and face each other. Note that the other five arm portions are also configured in the same manner as the arm portion 4 side.

- On the other hand, the base 8 is hollow inside, for example, real, lI
In this embodiment, a battery storage section 24 is provided for accommodating 2111i1 AA batteries. A blade storage recess 7 in the form of an upwardly opened concave case for storing the blade 2 or the lower end 3b of the blade unit 3 is formed on both sides of the storage portion 24, and is separated from the battery storage portion 24. .

Reference numbers 26 and 27 are battery guide plates. Further, a connecting plate 28 for holding one side of the battery and connecting it in series is fixed on the back surface of the cap 10, and a connecting plate 28 for holding the other side of the battery ( 'Second side)
An electrode terminal plate (not shown) is fixedly installed. Furthermore, a movable contact plate 29 that is moved by the operation plate 9 and a fixed contact plate 30 fixed to the back surface of the front plate 6b are arranged on the back surface of the front plate 6b of the case 6a to constitute a power switch 31. The base end of the contact plate 29 comes into sliding contact with the other (lower) electrode terminal plate 32 that holds the bent battery.

The upper electrode terminal plate (not shown) is connected to the lead plate 23 on one arm 4, and the fixed contact plate 30 is connected to the lead plate 21 on the other arm 5 via the wiring board 33. Construct six electrical systems.

In addition, the lead plate 23 and the electrode terminal plate,
Moreover, it is desirable that the lead plate 21, the wiring board 33, and the contact plate 30 be formed integrally.

Next, the blade unit 3 side will be explained with reference to FIG. 1.

Support holes 40 and 41 are provided on both flat sides of the unit case 3a.
The holes 40 and 41 are selected so that they are located exactly in the center of the blade unit 3 with the outer cutter frame 13 attached. This hole 40.41 has a rotating contact plate 42.4 at its outer end.
4 are respectively fitted. One of the support shafts 43 and the rotating contact plate 42 is entirely made of a conductor, and the inner end of the support shaft 43 is exposed inside the unit case 3a and serves as an introduction terminal 46. In addition, a fixing ring 47 having a relatively large diameter and having notches 47a and 47b formed on the circumference is integrally formed in the middle part of the support shaft 43 (see Fig. 4), and this ring 47 is inserted into the support hole 4o of the case 3a. The support shaft 43 is fixed to the case 3a by fitting into the fitting recess provided in the case 3a. The support shaft 43 is made to protrude outward by a predetermined length from the unit case 3a, and extends into the inside of the arm part 4 through a long hole 34 formed in the inner wall of the arm part 4, which is long in the horizontal direction. The integral rotating contact plate 42 is interposed between the lead plates 20 and 23. The rotating contact plate 42 has a thickness substantially the same as the width of the lead plate 20, and is a gear having wave-like peaks and valleys along the outer periphery. The outermost diameter of the rotating contact plate 42 is selected to be approximately the same as the distance between the lead plates 20 and 23, or slightly smaller.

The relationship of each part in such a rotation support structure is as follows. The support shaft 43 is guided into the elongated hole 34, and the elongated hole 3
4 in the longitudinal direction of the arm portion 4, and the movement stroke of the eyes and thighs is regulated. Note that the support shaft 43 is the elongated hole 3.
It is rotatable within 4.

Thereby, the blade portion 2 or the lower end portion 3b of the blade unit 3 can be stored in or taken out from the blade storage recess 7 of the main body 6. Further, the support shaft 43 is located at the middle position W (
It can be rotated freely in the upper end position (Fig. 5).
) or in the lower end position (FIG. 4 or 6), each lead plate 20.23
11-Boss part 20a, 23a, or 20b
, 23b act as clamping members to restrict the rotation and movement of the rotary contact plate 42 and hold the blade unit I.3 to the main body 6. Therefore, each person's I'I'
, 2. The formation positions of the portions 20a, 20b, and 23a, 23b are selected so that the rotating contact plate 42 can be locked at the upper and lower end positions.

This rotational support structure is constructed in the same manner on the other side (arm 5 side) and is symmetrical. Note that a description of the same structure on the other side will be omitted.

Furthermore, when the blade unit 3 is not in use, with the blade 2 stored in the storage recess 7, the rotating contacts Fj, 42 are positioned as shown in FIG. Therefore, in this state, section 11-
The valley part 42a of the gear in the rotary contact plate 42 to which the boss part 23b engages is covered with an insulating material A48 such as synthetic resin, and in this state, it can be connected to the battery side or connected to the one-hand terminal 23 and the rotary contact plate 42 becomes non-conductive. On the other hand, the blade unit 3 is reversed from this state, and the lower end 3b of the unit 3 is
In the storage section ~, 7" is stored and in the 0 state (used state) in Fig. 4, 7 is the LEET" plate 23 and rotating contact plate 4
2 is in a conductive state. In other words, when the electric shaver 1 is not in use, the internal switch (double switch) 49 can be constructed that does not operate even when the power switch 31 is turned ON. Since the switch 49 uses the rotation mechanism as is, the number of parts can be reduced, contributing to lower cost and downsizing.

Furthermore, when the blade unit 3 is pulled out upward, the rotary contact plate 42 can be held in place by the latch 11 and the boss portions 20a and 23a (the same applies to the other side). Therefore, in this state, if the blade unit 3 is rotated around the support shaft 43.45, the locking boss portions 20a of the elastically attached lead plates 20.21 are rotated. The peaks of the contact plates 42 and 44 climb over and rotate in a click manner. In this case, each trough of the gear can be locked and held, and the angle can be adjusted so that the blade unit 3 is inclined at a predetermined angle with respect to the main body 6 (see FIG. 10). In addition, the contact plate 42 in this state becomes as shown in FIG. 7, and the internal switch 49 never becomes the leaf F. 1
On the other hand, a shaft 6 is located at the lowest inside of the unit case 3a.
A drive motor 61 with a drive motor 61 located in the left and right direction is built-in. The input terminals 62 and 63 of this drive motor 61 are connected to the connection plate 6.
4.65 to the lead-in terminal 46.45 of said support shaft 43.45.
50 respectively.

As a result, each rotating contact plate 42, 44 becomes a positive and negative power terminal for the motor 61, respectively, and constitutes an electrical system for the following 13 blade unit units.

On the other hand, an eccentric circular cam 66 is fixed to the shaft 60, and a cylindrical driven ring 67 is rotatably attached to the outer periphery of the cam 66. A transmission lever 68 substantially perpendicular to the shaft 60 is integrally formed on the outer periphery of the driven ring 67, and this lever 68 extends upward and has a ball joint 6 at its upper end.
■ Via 9.

The tips of the horizontal lever part 71 of the shaped drive lever 70 are connected. The intermediate bent portion of the lever 70 is located above the motor 61 and is rotatably supported at the center position in the left-right direction of the blade unit 3 by a shaft pin 72 in the front-rear direction.
0 vertical lever part No. 73J extends upward.

The operating portion 74 forming the upper half of the vertical lever portion 73 is formed in a cylindrical shape, and a groove 75 of a predetermined depth is formed at the two ends thereof passing through the center of the shaft and penetrating in the front-rear direction.

On the other hand, 76 is an inner blade support, and in the center of this inner blade support 76 is a hole 77 into which the operating part 74 of the lever part 73 is loosely inserted.
form. This hole portion 77 is formed by providing a shaft portion 78 with a circular cross section in the front-rear direction passing through the center of a circular hole formed to have a large diameter so as to have a predetermined clearance with respect to the acting portion 74, thereby dividing the hole into two. . This shaft portion 78 enters into the split groove 75 when the acting portion 74 is inserted into the hole portion 77. Therefore,
The connection is made by causing the acting portion 74 to protrude upward from an opening 79 formed at the center of the upper surface of the unit case 3a, and
An E-ring 80 for preventing removal may be fitted into a ring groove formed on the outer periphery of the upper end of the working part 74 through the hole 77 of the support body 76 and facing above the hole 77. In addition, lever part 7
3 and the spring receiving part 81 protruding from the lower end of the support body 7
A coil spring 82 through which a lever portion 73 is inserted is compressed between the lower surfaces of the coil springs 6 and 6. The opening 79 is recessed downward from the surrounding unit case surface 1 to form a separate housing section 83, and a ring groove 84 is provided in the open section 79, into which a stretchable separate housing receptacle 85 is inserted. Further, at both ends of the support body 76, there are formed inner cutter support parts 8,8,89 which are made to stand up by providing engaging protrusions 86,87 on the outer wall.

On the other hand, the inner cutter 90 has a semi-cylindrical support base 91 with a hollow inside, and a large number of blades 92 . is engagement hole 9
It is made by drilling 3.94.

As a result, the inner walls of both end surfaces of the inner cutter 90 are connected to the support portion 8 of the support body.
8.Abuts against the outer edge of 89 and has a hole! 13.9
4 and the protrusions 86 and 87 are engaged, so that the inner cutter 90 is attached to the support body 7.
6 and is detachable. Note that the support base 91
Ribs 95 and 96 are provided on the lower surface of the cJ support member 76-L and abut against the surface of the cJ support member 76-L. Further, the inner cutter 90 is slidably in contact with the inner surface of the first cutter 12 and is pressed against the inner surface of the inner cutter 12 by the elastic force of the coil spring 82.

2. In such a configuration, 1-ri, motor 6
1 rotates the cam 66, and the lever 68 rotates the ball joint 6.
Move 9 up and down. This vertical movement causes the action portion 74 of the vertical lever portion 73 to reciprocate in the left-right direction via the drive lever 70. In this case, the action part 74 performs a circular arc movement,
A shaft portion 78 is engaged with the split groove 75 so as to be freely displaceable in the vertical direction.
Since the inner cutter 90 is urged with a moderate pressure contact force, the motion of the inner cutter 90 is converted to complete linear reciprocating motion. Such a drive transmission mechanism provides a kokichi with smooth operation, durability, and good assemblability.

On the other hand, the outer cutter 12 is attached and fixed to an outer cutter frame 13, but this outer cutter frame 13 is detachably attached to the upper end portion of the unit case 3a. The aforementioned knobs 15 and 16 are connected to the unit case 3a.
Spring 102.10 is provided at the upper part of the front and rear surfaces of the knob and protrudes from the inside to the outside of the elongated hole 100, 10'l that allows movement in the front and back direction.
By compressing the springs 102 and 103, the respective knobs 15 and 16 are biased in the opposite direction.On the inside of the knobs 15 and 16, there is a protruding stopper when pushed in, which also serves to regulate the position of the springs 102 and 103. 104... are integrally formed.Also, a knob 15.1 located inside the unit case 3a
6 has stopper portions 106 that stand upwardly at two locations on the left and right, and have locking claws 105 that lock outward on the two wheels.
... to be integrally formed.

The locking claws 105 are made to protrude to the outside of the unit case 3a through a through hole bored in the unit case 3a located on one side of the elongated hole 100°107. On the other hand,
On the inner wall of the outer cutter frame 13, each of the above-mentioned locking claws 105 and
A locking protrusion 107 that locks with the locking protrusion 107 is integrally formed with the locking protrusion 107 . ... can be pushed and climbed over, and the outer cutter frame 13 can be fixed to the unit case 3a. Moreover, when removing it, the lock can be released by pushing the knobs 15 and 16. By providing the knobs 15 and 16 in a relatively long and narrow manner on the front and rear surfaces of the blade unit 3, it is possible to eliminate the protrusion of the electric razor to the side, thereby making it possible to convert the blade unit 3 into a compact body 6. It can function as a non-slip when pulled upwards.

Next, the overall function of the reciprocating electric shaver according to the present invention will be explained with reference to FIGS. 8 to 11.

FIG. 8, FIG. 9, and FIG. 11 are front views of the external appearance when the blade unit is positioned in an arbitrary state, and FIG. 10 is a side view of the same external appearance.

First, FIG. 8 shows the position of use. In this state, the blade unit 2 of the blade unit 3 is located at the upper end, and the eye and lower end 3b are stored in the storage recess 7 of the main body 6. In this usage position, the blade unit 3 is placed in the main body 6. is maintained.

On the other hand, FIG. 9 shows a state in which the blade unit 3 is completely pulled out upward from the usage position shown in FIG. 8, and the lower end portion 3b is taken out from the storage recess 7.

Even in this state, the blade unit 3 is held by the main body 6. In this position, the blade unit 3 rotates in a click manner as shown in FIG. 10, and the angle can be adjusted, and the blade unit 3 can be used even in this state.

On the other hand, in an intermediate position where the blade unit 3 is pulled out from the use position shown in FIG. 8 but does not reach the uppermost position, the blade unit 3 can freely and stably rotate 360 degrees. Therefore, in this position, the blade unit 3 is reversed from the angle of the usage position shown in FIG. When pushed in, the blade portion 2 is stored in the storage recess 7 as shown in FIG. 11, and is fixed in position, leaving it in a non-use position.

Note that the present invention is not limited to the embodiments, but to the detailed configuration.

Any changes in shape etc. that do not depart from the gist of the present invention are permitted within the scope of the present invention.

(Effects of the Invention) As described above, the reciprocating electric shaver according to the present invention includes a blade unit having a blade at one end, and a main body that supports the blade unit so as to be rotatable and displaceable by a predetermined stroke. At least the blade unit is rotated from the use position and this position, and the blade unit is changed)
4t L, 7 BRnl>' Book (* (')'l!
Since it is constructed so that it can be held at any position, it has the following advantages.

- Since there is no need for a conventional cap that covers the blade, loss or damage to the cap can be avoided, and the trouble of removing and attaching the cap can be eliminated.

■ It is easy to handle and convenient because it can be stored by simply flipping it over.Furthermore, by flipping it over, it is possible to maintain approximately the same shape in the non-use mode and the use mode, making it compact and excellent in portability.

■ Since the entire reciprocating type is thin and has a small thickness, when the blade unit is stored and not in use, the blade unit does not rotate even when carried, etc., and the blade unit can be sufficiently protected. This is particularly effective when supported by a pair of arms as in the embodiment.

■ By displacing the blade unit and storing the blade in the storage recess, the blade can be completely stored without being exposed to the outside, and the blade or the lower end of the blade unit can be securely fixed for stable use. 1. The blade portion can be protected.

(2) By incorporating a drive unit such as a motor other than a battery into the blade unit as in the embodiment, the overall weight balance can be maintained well and the ease of handling can be further improved.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is an internal rear view of a reciprocating electric shaver according to the present invention, FIG. 2 is an internal rear view of the main body of the razor, and FIG. 3 is a central longitudinal cross-sectional side view of the razor. Figures (arrow A direction in Figure 1), Figures 4 to 7, side views of the stopper plate and rotating contact plate, Figures 8, 9, and 1.
Figure X is an external front view of the same razor, and Figure 10 is an external side view of the same razor. In addition, in the drawing, 2...Blade part, 3...Blade part unit,
3b...Lower end portion, 4, 5...Arno section, 6...Main body, 7...Storage recess. 20a, 20b, 23a, 23b...-locking boss portion,
24...Battery storage section, 42.44...Rotating contact plate, 43.45...Spindle, 61...Motor.

Claims (1)

[Scope of Claims] 1. A blade unit having a blade at one end, supporting the blade unit so as to be rotatable and capable of displacing a predetermined stroke, and optionally holding the blade unit at least in a use position and a non-use position; A reciprocating electric shaver comprising a main body including a storage recess for storing the blade of a blade unit rotated and displaced from a use position in the non-use position. 2. The reciprocating electric shaver according to claim 1, wherein the main body includes a pair of left and right arm portions facing each other, and both sides of the blade unit are respectively supported inside the arm portions. . 3. A locking boss portion that is elastically supported is provided on the main body side, and a gear that engages with the locking boss portion is provided on the support shaft on the blade unit side to hold the blade unit in the above position. A reciprocating electric shaver according to claim 1 or 2. 4. The blade unit according to claim 1, 2 or 3, wherein the blade unit and the lower end portion on the opposite side thereof are formed substantially symmetrically with respect to the rotation axis. Reciprocating electric razor. 5. The main body has a built-in power supply unit such as a battery, and the blade unit has a built-in drive unit such as a motor. The reciprocating electric shaver according to item 4.