JP2012061135A - Electric razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric razor including cutting units provided respectively on an upper portion and a side portion of a body unit to perform cutting using the upper portion side and the side portion side, which can efficiently perform transmission from a motor to the cutting units.SOLUTION: The electric razor includes reciprocating cutting blade units 6, 131A, 131B including movable blades 59, 133, 136 and fixed blades 58, 132, 135, which are provided on the upper portion of the body unit 3, and a reciprocating cutting blade unit 7 including a movable blade 66 and a fixed blade 65, which is provided on the side portion of the body unit 3. An oscillator 90 which converts power of the motor 16 to reciprocating power to reciprocate and drive the movable blades 59, 66, 133, 136 located on the upper portion and side portion of the body unit 3 is supported by a plurality of guide shafts 96, 97 disposed in parallel on the upper portion of the body unit 3 so as to be slidable forward and backward.

Description

  The present invention relates to an electric razor comprising at least two reciprocating cutting units.

  Patent documents 1 and 2 can be mentioned as a publicly known example of this kind of electric shaver. In these electric razors, the vibrator is guided and supported so as to be reciprocally slidable on a horizontal posture shaft. As described above, when the vibrator is slid and guided along the axis of the horizontal posture, useless movement of the vibrator in the vertical direction can be restricted, so that power can be efficiently transmitted from the motor to the movable blade.

Japanese Patent Laid-Open No. 51-8059 (FIG. 1) Japanese Patent Laid-Open No. 51-40267 (FIG. 1)

  However, in the above-mentioned electric razor, there is a possibility of swinging around the shaft, and when a cutting unit is provided at the upper part and the side part of the main body part, either one becomes a structure away from the shaft, and the transmission efficiency decreases. There is a fear.

  An object of the present invention is to provide a cutting unit for each of the upper part and the side part of the main body so that cutting can be performed using the upper part or the side part, and the electric power can be efficiently transmitted from the motor to the cutting unit. Provide a razor.

  The electric shaver according to the present invention is provided with a reciprocating cutting blade unit 6 / 131A / 131B including a movable blade 59/133/136 and a fixed blade 58/132/135 at the upper part of the body portion 3, and the body portion. 3, a reciprocating cutting blade unit 7 including a movable blade 66 and a fixed blade 65 is provided. A vibrator 90 that converts the power of the motor 16 into reciprocating power and reciprocates the movable blades 59, 66, 133, and 136 on the top and sides of the main body 3 is disposed in parallel with the top of the main body 3. A plurality of guide shafts 96 and 97 are supported so as to be slidable back and forth.

  A vibrator main body 93 of the vibrator 90 is supported by a first guide shaft 96 and a second guide shaft 97 arranged in parallel to the upper part of the main body 3 so as to be slidable back and forth. A cam structure that converts to reciprocating power is provided on the lower surface of the vibrator 90 between the first guide shaft 96 and the second guide shaft 97.

  In addition, a first drive shaft 94 that drives the movable blades 59, 133, 136 of one of the reciprocating cutting blade units 6, 131A, 131B is provided in the vicinity of the first guide shaft 96, and a second guide shaft 97 is provided. Is provided with a second drive shaft 95 for driving the movable blade 66 of the other reciprocating cutting blade unit 7.

  The vibrator body 93 is provided with slide holes 98 and 99 guided by the first and second guide shafts 96 and 97, and one of the slide holes 98 and 99 is connected to both guide shafts 96 and 97. It was formed with a long hole that absorbs the variation in the inter-axis distance.

  The vibrator 90 is housed in a head frame 73 disposed on the upper portion of the main body 3, and the first drive shaft 94 and the second drive shaft 95 are respectively connected to the first opening 101 provided in the head frame 73 and the first opening 101. Projecting to the outer surface of the head frame 73 through the second opening 102, the first drive shaft 94 and the first opening 101, and the second drive shaft 95 and the second opening 102 are respectively first. The seal body 103 and the second seal body 104 are sealed in a watertight manner.

  Further, the first guide shaft 96 and the second guide shaft 97 are provided in a state shifted in the front-rear direction of the main body 3 and in a stepped state shifted in the vertical direction.

  In the present invention, when the vibrator 90 is supported by a plurality of guide shafts 96 and 97 arranged in parallel so as to be reciprocally slidable, the stroke when the vibrator 90 reciprocally slides is always constant, and due to load fluctuations, etc. The change in slide stroke can be eliminated. Further, the vibrator 90 during reciprocating sliding is restricted from moving back and forth or up and down by both guide shafts 96 and 97, so that power can be prevented from being wasted. Therefore, the power conversion by the vibrator 90 can be performed more appropriately, and the transmission efficiency of the motor power can be improved.

  When a cam structure for power conversion is provided on the lower surface of the vibrator 90 between the first guide shaft 96 and the second guide shaft 97, among the vibrator 90, the two guide shafts 96 and 97 are stably supported. Power conversion can be performed in the part. Therefore, it is possible to perform power conversion appropriately and with no transmission loss while restricting the vibrator 90 from moving back and forth or up and down.

  When the first drive shaft 94 is provided in the vicinity of the first guide shaft 96 and the second drive shaft 95 is provided in the vicinity of the second guide shaft 97, the reciprocating movable blades 59, 66, 133, 136 and the vibrator 90 are provided. Can be guided in a stable state with the guide shafts 96 and 97 at the same time. Therefore, the guide shafts 96 and 97 restrict the first and second drive shafts 94 and 95 from moving back and forth or up and down, so that the movable blades 59, 66, 133, and 136 Reciprocating drive can be performed accurately in the absence.

  When one of the slide holes 98 and 99 is formed as a long hole, even if there is a variation in the distance between the first and second guide shafts 96 and 97 and the degree of parallelism, the slide holes 99 are elongated. Can absorb Accordingly, the vibrator 90 can be always reciprocated smoothly while eliminating the occurrence of a large frictional resistance at the twisted portion due to the vibrator 90 sliding back and forth.

  The vibrator 90 is accommodated in the head frame 73, and the first and second seal bodies 103, between the first and second drive shafts 94, 95 and the first and second openings 101, 102 are accommodated. Sealing with 104 can prevent foreign matters such as hair dust from entering the inside of the head frame 73. Therefore, the operation of the vibrator 90 provided inside the head frame 73 can be reliably prevented from being obstructed by foreign matters such as hair dust, and the cam hitting sound or the like of the vibrator 90 in the head frame 73 can be The first and second seal bodies 103 and 104 can prevent leakage.

  The distance between one reciprocating cutting blade unit 6 and the other reciprocating cutting blade unit 7 can be sufficiently separated, and when the cutting blade unit 6 is used, It will not get in the way. Moreover, even if the cutting blade units 6 and 7 are separated, the guide shafts 96 and 97 correspond to the cutting blade units 6 and 7 in position so that the transmission efficiency is reliably prevented from being lowered. it can.

It is a vertical side view which shows the head part of the electric shaver which concerns on this invention. It is a front view of an electric razor. It is a side view which shows the periphery structure of a head part. It is a vertical front view which mainly shows a cutting part of a head part. It is a partially broken side view which shows the gear transmission structure in a cutting part. It is an exploded front view of the head part which fractured partially. It is a perspective view of a makeup | decoration case. It is a cross-sectional top view which shows the detailed structure of a stirring body. It is the disassembled side view which fractured | ruptured a part which shows the drive structure of a stirring body. It is a cross-sectional top view which shows the axial support structure of a tilting frame. It is a partially broken top view which shows a 1st lock structure. It is a vertical side view of the rotary blade which can be tilted. It is a vertical side view of the head part which concerns on another Example. It is a cross-sectional top view which shows the stirring body which concerns on another Example. It is a vertical side view which shows operation | movement of the stirring body which concerns on another Example.

(Example)
1 to 11 show an embodiment in which the present invention is applied to a rotary electric shaver provided with a reciprocating cutting blade unit. In the present invention, “front / rear / left / right / upper / lower” follows the crossing arrows shown in FIGS. 2 and 3, the electric razor includes a main body portion 3 including a grip portion 1 and a head portion 2, and a main blade 5 and an upper portion of the main body portion 3, i. An upper trimmer blade (reciprocating cutting blade unit) 6 is provided, and a side trimmer blade (reciprocating cutting blade unit) 7 is provided on the side of the main body 3, in this embodiment, on the rear side. . The side portion is interpreted to include the front side portion, the right side portion, and the left side portion in addition to the rear side portion. Therefore, the side trimmer blade (reciprocating cutting blade unit) 7 can be disposed on any one of the front side portion, the right side portion, and the left side portion of the main body portion 3. The main blade 5 mainly cuts short hairs, and the upper trimmer blade 6 and the side trimmer blade 7 mainly cut long hairs and comb hairs.

  The grip unit 1 includes a hollow grip case 10 that can be held with one hand. A switch button 11 for starting the motor, a select button 12 for switching the operating state of the motor 16, and an LED display unit 13 are provided on the front surface thereof. Etc. are provided. The grip case 10 contains a secondary battery 14 and a circuit board 15 on which components of a control circuit are mounted.

  The head portion 2 includes the cutting portion 18 including the main blade 5 and the upper trimmer blade 6 described above, and the movable blades 33, 44, 59, and 66 of the main blade 5, the upper trimmer blade 6, and the side trimmer blade 7. The driving unit 19 includes a driving structure for driving, and a decorative case 20 that is attached to and detached from the driving unit 19.

(Structure of the cutting part)
As shown in FIGS. 3 and 4, the cutting portion 18 has a cutting portion frame 22 as a basic structure, and includes a main blade 5, an upper trimmer blade 6, a front cover 23 and a rear cover 24, left and right The side cover 25, a pair of front and rear stirring bodies 26, a longitudinal transmission system having a gear transmission structure, which will be described later, and the like are assembled as one unit part. The cutting part frame 22 is integrally provided with a base frame 28, side walls 29 standing on both sides of the base frame 28, a rear support wall 30 (see FIG. 1) standing on the rear part of the base frame 28, and the like. It consists of a plastic molded product.

  The main blade 5 includes a first rotary blade 5A disposed on the front side of the main cutting surface 4 and a second rotary blade 5B disposed on the rear side of the main cutting surface 4. As for the cutting part 18 made into unit parts as mentioned above, the whole cutting part 18 is replaced | exchanged when the sharpness of the main blade 5 or the upper trimmer blade 6 falls.

  As shown in FIG. 3, the first rotary blade 5A includes a fixed blade (outer blade) 32 made of a mesh blade, a cylindrical bowl-shaped movable blade (inner blade) 33 that is driven to rotate about a horizontal axis, The tilting frame 34 supports both of these 32 and 33, and the return spring 35 (see FIG. 5) for returning and biasing the tilting frame 34 toward the standby position. As shown in FIG. 12, the tilting frame 34 includes a pair of left and right tilting arms 36 formed in an L shape, and a tilting frame 37 that bridges the rear portions of both tilting arms 36. The tilt frame 34 is integrated with the front cover 23 by fixing the left and right tilt arms 36 to the inner surface of the front cover 23. A movable blade 33 is pivotally supported at the tip of one arm portion of the tilting arm 36, and the other arm portion of the tilting arm 36 is supported so as to be tiltable around a central axis of a final gear 81 to be described later. Since this shaft support structure is related to the shaft support structure of the final gear 81, it will be described later.

  As described above, by supporting the tilting arm 36 so as to be tiltable about the central axis of the final gear 81, the entire first rotary blade 5A can tilt forward from the standby position shown in FIG. The front cover 23 described above is fixed to the front surface of the tilting frame 34, and an elastic piece 38 is disposed in the front cover 23 to pull the fixed blade 32 downward and bring it into close contact with the movable blade 33 (FIG. 1). FIG. 6). A pair of elastic pieces 38 a are integrally formed on the left and right sides of the elastic piece 38. The rear end of the outer blade 32 is fixed to the rear surface of the tilting frame 37 (see FIG. 12).

  The second rotary blade 5B includes a fixed blade (outer blade) 43 made of a mesh blade and a cylindrical bowl-shaped movable blade (inner blade) 44 that is driven to rotate about a horizontal axis. The movable blade 44 is pivotally supported by the left and right side walls 29 of the cutting portion frame 22, and the outer diameter thereof is set larger than the outer diameter of the movable blade 33 of the first rotary blade 5A. The rear end of the fixed blade 43 is urged so as to be in close contact with the movable blade 44 by an elastic piece 45 provided on the inner surface of the rear cover 24, and the rear cover 24 is fixed to the rear support wall 30 of the cutting portion frame 22. It is. The front end of the fixed blade 43 is fixed to a center frame 46 fixed to the front and rear center of the cutting part frame 22. Reference numeral 47 is a protective cap that covers the outer surfaces of the main blade 5 and the upper trimmer blade 6 (see FIG. 1).

  As described above, when the rotary blades (rotary cutting blade units) 5A and 5B are provided before and after the upper trimmer blade (reciprocating cutting blade unit) 6, the cutting blade unit (upper trimmer blade) While cutting with 6, the short hair can be cut with the rotary blades 5A and 5B. That is, a combination shave can be performed, and an effective shave can be performed in a short time. Even when the rotary type cutting blade unit is provided on either one of the front and rear sides of the upper trimmer blade 6, combi-shaving can be performed in the same manner, and effective shaving can be performed in a short time.

(Structure of stirring body)
As shown in FIGS. 1 and 8, the stirrer 26 is a plastic in which a group of fins 49 project from the upper surface of a stirring base 48 that is long to the left and right, and a round shaft-shaped operating portion 50 projects from both ends of the stirring base 48. Consists of molded products. On the face wall of the agitation base 48 facing the space sandwiched between the adjacent fins 49, a through hole 51 that allows passage of washing water and fuzz is opened. The through hole 51 of the front stirrer 26 is composed of a square hole arranged in a state adjacent to the front and rear, and the through hole 51 of the rear stirrer 26 is a square hole arranged in a state adjacent to the front and rear. Holes and groove-shaped notches are alternately formed. Square coupling claws (coupling portions) 52 project from the left and right centers of the opposing edges of the front and rear stirring bodies 26, respectively. If a part of the passage 51 of the rear stirring body 26 is formed as a groove-shaped notch, the entire stirring body 26 can be assembled between the side walls 29 of the cutting portion frame 22 while being deformed by bending. Therefore, the assembling body 26 can be easily assembled to the cutting portion frame 22.

  The agitator 26 is supported by an agitation shaft 53 that bridges the side wall 29 of the cutting part frame 22, can reciprocate between the standby position and the drive position, and is provided with four pieces provided near both ends of the agitation shaft 53. A kick spring (spring) 54 (see FIG. 8) is urged to swing toward the drive position. In a state where the agitator 26 is displaced to the drive position (the state shown in FIG. 9), the previous connecting claw 52 of the drive piece 55 provided on the drive shaft 94 for the upper trimmer blade (reciprocating cutting blade unit) 6 is used. Engage with the engaging recess (connecting portion) 56. Therefore, when the drive shaft 94 is driven, the agitator 26 is driven to reciprocate along the agitation shaft 53 in the same direction as the reciprocating direction of the drive shaft 94 and the movable blade 59. The washing water can be forcibly stirred by operation. Note that the engaging recess 56 may be formed integrally with the drive shaft 94. Thus, the stirring body 26 is supported by the stirring shaft 53 so as to be able to swing back and forth and back and forth.

  In a state where the stirring body 26 is assembled to the cutting part frame 22 via the stirring shaft 53, the operation parts 50 of the front and rear stirring bodies 26 are exposed outside the four corners of the cutting part frame 22 as shown in FIG. 8. is doing. By pushing down this exposed portion with the decorative case 20, as shown in FIG. 1, the stirrer 26 can be switched from the drive position to the standby position. Further, the upper and lower sides of the left and right side walls 29 of the cutting part frame 22 are bridged by the movable blade 44 of the second rotary blade 5B, and the lower portions thereof are bridged by a pair of front and rear stirring shafts 53 ( (See FIG. 8). Therefore, the structural strength of the cutting portion frame 22 can be increased, and the meshing accuracy of the gear group constituting the vertical transmission system disposed on the outer surface of the right side wall 29 can be improved.

(Structure of upper and side trimmer blades)
As shown in FIGS. 1 and 4, the upper trimmer blade (reciprocating cutting blade unit) 6 is fixed to a fixed blade 58 having a slit blade structure, a movable blade 59 having a comb-tooth structure, and a lower portion of the movable blade 59. A passive piece 60 and a spring 61 that presses and urges the movable blade 59 against the fixed blade 58. The upper trimmer blade 6 is attached to the cutting part frame 22 using the center frame 46 described above. The passive piece 60 is connected to a drive shaft 94 for the upper trimmer blade. Thereby, the movable blade 59 can be reciprocated left and right by the reciprocating power of the drive shaft 94.

  As shown in FIGS. 1 and 3, the side trimmer blade (reciprocating cutting blade unit) 7 is assembled to a trimmer base 63 fixed to the upper part of the rear side of the grip case 10, and the trimmer base 63 can be raised and lowered. And a fixed blade 65 and a movable blade 66 having a clipper blade structure disposed on the inner surface of the frame 64. A slide knob 68 for raising and lowering the blade 7 is provided at the lower part of the side trimmer blade 7, and the side trimmer blade 7 is rotated and protrudes rearward of the trimmer base 63 by pushing up and sliding the slide knob 68. Can be switched to the use posture (state shown in FIG. 1). In this use posture, the passive piece 67 fixed to the movable blade 66 engages with the drive shaft 95 for the side trimmer blade, so that the movable blade 66 can be reciprocated left and right by the reciprocating power of the drive shaft 95. The side trimmer blade (reciprocating cutting blade unit) 7 is suitable for shaving.

(Driver structure)
The drive unit 19 converts the rotational power of the motor 16 to the movable blades 33 and 44 of the main blade 5 and converts the rotational power of the motor 16 into reciprocating power to convert the upper trimmer blade 6 and the side trimmer blade. 7, a reciprocating power transmission structure that transmits power to the movable blades 59 and 66, and a case structure that accommodates them. As shown in FIG. 1, the case structure constituting the drive unit 19 includes a motor holder 70 that houses the motor 16, a base 71 and a cover 72 that are fixed to the upper part of the motor holder 70, and the upper surfaces of both 71 and 72. The head frame 73 covers the head frame 74, the head base 74 fastened to the head frame 73, and the like. The entire drive unit 19 is movably supported by an inner frame provided inside the grip case 10, so that the head unit 2 follows the change in the skin surface, while moving back and forth, left and right with respect to the grip unit 1.・ Can move in up and down directions. In addition, the grip part 1 and the head part 2 do not need to support so that a movement is possible, and the structure fixed to the grip part 1 and the head part 2 may be sufficient.

A gear transmission structure is provided between the motor 16 and the movable blades 33 and 44 of the rotary blades 5A and 5B to transmit the rotational power of the motor 16 to the movable blades 33 and 44.
The gear transmission structure is disposed inside the cover 72 and transmits the rotational power of the motor 16 toward the right end of the head frame 73, and the movable blade 33 of the main blade 5 by inheriting the power of the horizontal transmission system. -It consists of a vertical transmission system that transmits to 44. As shown in FIG. 4, the lateral transmission system includes a first gear 75 and a second gear 76 arranged in order from the output shaft side of the motor 16, and a third gear 77 and a fourth gear 78 configured by bevel gears, respectively. Constitute. As shown in FIG. 5, the vertical transmission system includes a fifth gear 79 fixed to the gear shaft of the fourth gear 78, a sixth gear 80 that meshes with the fifth gear 79, and a final gear that meshes with the sixth gear 80. 81 and movable blade gears 82 and 83 fixed to the movable blade shafts of the movable blades 33 and 44 of the first and second rotary blades 5A and 5B. The gears 80 to 83 of the vertical transmission system are disposed along the outer surface of the right side wall 29 of the cutting blade frame 22, and the outer surfaces of these gears 80 to 83 are covered with the side cover 25 (FIG. 4). reference). Of the gears 79 to 83 of the longitudinal transmission system, the gears 80 to 83 are incorporated in the cutting unit 18. Therefore, when the cutting unit 18 is separated from the drive unit 19, these gears 80 to 83 are incorporated. Each is removed.

  As described above, the tilt frame 34 of the first rotary blade 5 </ b> A is supported so as to be tiltable about the central axis of the final gear 81. Specifically, as shown in FIGS. 4, 5, and 10, the final gear 81 is rotatably supported by the peripheral surface of the boss 85 that bulges on the right side wall 29 of the cutting blade frame 22. Further, the tilt shaft 87 provided in the pair of left and right side end covers 86 is engaged with the bearing hole 88 of the boss 85 and the engagement hole 39 provided in the arm portion of the tilt arm 36. The side end cover 86 is fastened to the tilt arm 36 with screws 89. As described above, the center of tilt of the first rotary blade 5A is made to coincide with the center of rotation of the final gear 81 via the boss 85 and the tilt shaft 87, whereby the movable blade gear 82 and the final gear 81 are engaged with each other. The first rotary blade 5A can be tilted back and forth while maintaining the state. In order to prevent the tilting shaft 87 from coming off from the bearing hole 88 and at the same time to protect the gear group of the longitudinal transmission system, a side cover 25 is attached to the right side wall 29 of the cutting blade frame 22 with a screw 40 as shown in FIG. The side surfaces of the side end cover 86 and the tilting shaft 87 are fixed by the side cover 25.

  In the reciprocating power transmission structure, the rotational power of the motor 16 is converted into reciprocating power by the cam structure and the vibrator 90 and transmitted to the movable blades 59 and 66 of the upper trimmer blade 6 and the side trimmer blade 7. As shown in FIG. 1, the cam structure includes an eccentric pin 91 provided on the upper surface of the first gear 75, and a passive groove 92 that is long before and after being formed in a recess on the lower surface of the vibrator 90. The cam structure is provided between an output shaft of the motor 16 and the vibrator 90 between a first guide shaft 96 and a second guide shaft 97 described later. Thus, by supporting the front and rear of the cam structure with the first and second guide shafts 96 and 97, the direction in which the vibrator 90 slides and displaces along the guide shafts 96 and 97 at the time of motion conversion. Strictly stipulated in the left-right direction, the power loss during operation conversion can be reduced. In this embodiment, on the assumption that the cam structure is between the first guide shaft 96 and the second guide shaft 97, in this embodiment, the cam structure is provided close to the first guide shaft 96. On the other hand, in the present embodiment, the second guide shaft 97 can be lowered downward, and both guide shafts 96 and 97 can be moved back and forth. That is, the degree of freedom of design in the narrow space of the head unit 2 is expanded. Of course, a cam structure may be provided at an intermediate portion between the first guide shaft 96 and the second guide shaft 97.

  The vibrator 90 protrudes from the vibrator main body 93, a drive shaft (first drive shaft) 94 for an upper trimmer blade protruding from the upper front end of the vibrator main body 93, and a rear end side portion of the vibrator main body 93. It consists of a plastic molded product integrally provided with a side trimmer blade drive shaft (second drive shaft) 95 provided. The vibrator body 93 is guided by a pair of front and rear guide shafts 96 and 97 fixed to the cover 72 of the head portion 2 so as to be reciprocally slidable in the left and right directions. The slide hole 98 guided by the first guide shaft 96 is formed as a round hole, whereas the slide hole 99 guided by the second guide shaft 97 is formed in a long oval shape in the front and rear direction. This is to avoid the occurrence of a large frictional resistance due to the vibrator 90 reciprocatingly sliding even when the distance between the first and second guide shafts 96 and 97 and the parallelism vary. . In particular, in this embodiment, since the cam structure is provided close to the first guide shaft 96, the vicinity of the rear end of the vibrator body 93 guided by the second guide shaft 97 which is the other shaft is reciprocating vibration. At times, the long hole structure of the slide hole 99 is useful because it is easily shaken and twisted.

  As shown in FIG. 1, the drive shaft 94 for the upper trimmer blade is provided in the vicinity of the first guide shaft 96, and the drive shaft 95 for the side trimmer blade is provided in the vicinity of the second guide shaft 97. . Thus, when the drive shaft 94 for the upper trimmer blade is provided in the vicinity of the first guide shaft 96 and the drive shaft 95 for the side trimmer blade is provided in the vicinity of the second guide shaft 97, the upper trimmer blade 6 and the side The movable blades 59 and 66 of the partial trimmer blade 7 can be accurately driven in a reciprocating manner without any transmission loss, so that the cut hair and long hair can be cut smoothly. Further, the first guide shaft 96 and the second guide shaft 97 are provided in parallel in a state shifted in the front-rear direction of the main body 3. Further, the first guide shaft 96 and the second guide shaft 97 are provided in parallel with each other in a stepped state shifted in the vertical direction of the main body. Thus, the distance between the upper trimmer blade (reciprocating cutting blade unit) 6 and the side trimmer blade (reciprocating cutting blade unit) 7 can be sufficiently separated, and the upper trimmer blade (reciprocating motion type). The side trimmer blade (reciprocating cutting blade unit) 7 does not get in the way when the cutting blade unit 6 is used. In the present embodiment, the axis of the head portion 2 is tilted forward by 10 degrees with respect to the axis of the grip portion 1. However, even if the tilt is 20 degrees or the tilt is zero, for example, If the first guide shaft 96 and the second guide shaft 97 are displaced in the front-rear direction and the up-down direction of the main body portion 3 to achieve the above effect, this structure is established.

  Although most of the vibrator body 93 is housed in the head frame 73, the drive shaft 94 for the upper trimmer blade and the drive shaft 95 for the side trimmer blade are the first openings opened in the head frame 73. It protrudes to the outer surface of the head frame 73 through 101 and the second opening 102. In order to prevent dust and cleaning water from entering the inside of the head frame 73, the space between the drive shaft 94 for the upper trimmer blade and the first opening 101 is sealed in a watertight manner by the first seal body 103, and the side A space between the drive shaft 95 for the partial trimmer blade and the second opening 102 is sealed in a watertight manner by the second seal body 104. The first seal body 103 and the second seal body 104 are each made of molded packing, and can exhibit a sealing function while absorbing the reciprocating motion of the drive shafts 94 and 95.

(First and second lock structures)
The entire cutting portion 18 including the main blade 5 and the upper trimmer blade 6 is detachably attached to the head frame 73 located on the uppermost surface of the driving portion 19. In order to lock the cutting portion 18 attached to the head frame 73 so that it cannot be removed, a first lock structure 106 is provided between them. Furthermore, a second lock structure 107 is provided between the drive unit 19 and the decorative case 20 in order to lock and hold the decorative case 20 attached to the drive unit 19 in an inseparable manner.

  In a state in which the cutting part 18 is mounted on the head frame 73, the fuzz chamber 21 is formed between the main blade 5 and the upper trimmer blade 6 and the head frame 73, and the freight chamber 21 is communicated around the cutting part 18. A water opening 27 is provided. The water flow opening 27 includes not only the opening formed in the wall surrounding the periphery of the fuzz chamber 21 but also the entire space where the cleaning water can enter and exit, such as the gaps between the respective members assembled to the cutting part frame 22. I will do it. In this embodiment, all of the openings and gaps facing the lower part of the four peripheral surfaces that are not covered by the front cover 23, the rear cover 24, and the side cover 25 among the peripheral surfaces of the cutting part frame 22 become the water flow openings 27. .

  In FIG. 11, the first lock structure 106 includes a pair of front and rear straight rod-shaped lock frames 108, an interlocking lever 109 that connects the left ends of both lock frames 108 via pins 114 a, and both locks via the interlocking lever 109. A lock spring 110 that urges and locks the frame 108 and a lock release knob (first release body) 111 that unlocks the front lock frame 108 are configured. The lock frame 108 is disposed on the front and back of the inner surface of the cover 72 and is guided so as to be slidable only in the left and right directions. (See FIG. 6).

  The interlocking lever 109 is pivotally supported by a pin 114 provided on the inner surface of the cover 72 and supported in a seesaw shape. When the front lock frame 108 is unlocked by the unlocking knob 111, The moving operation is converted into a reverse moving operation and transmitted to the lock frame 108 on the rear side. That is, the unlocking direction of the lock frame 108 on the driving side (front side) that is unlocked by the unlocking knob 111 is opposite to the unlocking direction of the lock frame 108 on the driven side (rear side). The front and rear lock frames 108 are connected by an interlocking lever 109. Therefore, the protruding directions of the lock claws 113 provided on the front and rear lock frames 108 are reversed left and right. The lock spring 110 is formed of a compression coil spring and is disposed between the lever arm on the rear side of the interlocking lever 109 and the inner wall of the cover 72. In the base frame 28 of the cutting part frame 22, four lock holes 115 that engage with the lock claws 113 are formed to be recessed. The unlocking knob 111 is located below the water flow opening 27 and close to the water flow opening 27 on the front surface of the head frame 73. Therefore, when the cutting portion 18 is washed, the lock release knob 111 is not conscious. 111 can be cleaned simultaneously.

  In FIG. 4, the second lock structure 107 includes a lock release button (second release body) 125 that can be removably assembled on both sides of the head base 74, and a lock claw 126 that protrudes above the lock release button 125. The lock release button 125 is configured by a lock spring 127 for urging the lock release button 125, a lock recess 122 provided in the decorative case 20, and the like. By pressing the left and right lock release buttons 125, the engagement state of the lock claw 126 and the lock recess 122 can be released, and the decorative case 20 can be detached from the drive unit 19. In this separated state, the cutting unit 18 As shown in FIG. 6, the unlocking knob 111 can be exposed on the front surface of the drive unit 19.

(Structure of makeup case)
6 and 7, the decorative case 20 is integrally provided with a front wall 116, a rear wall 117, a left side wall 118, a right side wall 119, and a cover wall 120 that is continuous with the upper edge of the front wall 116. It consists of a four-frame frame plastic molded product. At the four corners of the inner surfaces of the left and right side walls 118 and 119, operation protrusions (operation bodies) 121 for pushing down the operation portion 50 of the stirring body 26 described above are formed. Between these operation protrusions 121, the second protrusions are formed. A lock recess 122 that engages with the lock claw 113 of the lock structure 107 is formed. A notch 123 that avoids contact interference with the second drive shaft 95 is formed at the left and right center of the lower edge of the rear wall 117.

  In a state where the decorative case 20 is attached to the drive unit 19, the inner surfaces of the front wall 116 and the rear wall 117 are received by the front and rear wall surfaces of the head frame 73, and similarly, the inner surfaces of the left and right side walls 118 and 119 are The left and right wall surfaces of the head frame 73 are received. As a result, the front wall 116 covers and hides the outer surface of the unlocking knob 111 provided at the center of the front wall of the head frame 73. Further, the water passage openings 27 around the cutting portion 18 are covered and hidden by all the wall surfaces 116 to 120 constituting the decorative case 20.

(Mode of use)
In a normal state, the peripheral side surface of the drive unit 19 is covered with a decorative case 20, and the main cut surface 4 of the cutting unit 18 is covered with a protective cap 47. At the time of shaving, the protective cap 47 is removed, and the beard is cut with the main blade 5, the upper trimmer blade 6, and the side trimmer blade 7. When cleaning the cutting part 18, the cosmetic case 20 is removed from the driving part 19, the water passage opening 27 around the flock chamber 21 is exposed, and the fouling accumulated in the flock chamber 21 in this state is removed. Wash away. At this time, since the restraint by the decorative case 20 is released, the stirring member 26 is displaced to the driving position under the urging force of the spring 54, and as shown in FIG. 8, the connecting claw 52 has a driving shaft for the upper trimmer blade. Engage with a drive piece 55 provided at 94. In this state, the group of fins 49 protrude upward and face the lower surfaces of the first and second rotary blades 5A and 5B (see FIG. 9).

  Next, the switch button 11 is turned on while flowing the flowing water to the water opening 27 with the head portion 2 obliquely downward, and the movable blades 33, 44, 59 of the main blade 5 and the upper trimmer blade 6 are turned on. At the same time, the stirrer 26 is driven to reciprocate. At this time, in each of the first and second rotary blades 5A and 5B, the movable blades 33 and 44 are rotationally driven while being in close contact with the fixed blades 32 and 43. The dust and sebum adhering to the surface are forcibly scraped off and washed away. Moreover, the washing water that has flowed into the fluff chamber 21 is agitated by the rotationally driven movable blades 33 and 44 and is splashed around. The washing water is similarly stirred by the movable blade 59 of the upper trimmer blade 6 and splashed around. Further, the washing water in the vicinity of the bottom surface of the fluff chamber 21 is agitated by the fins 49 of the agitator 26 that is reciprocally driven by the vibrator 90 and splashed around.

  As described above, when the washing water in the fluff chamber 21 is stirred in cooperation with the movable blades 33 and 44 and the stirrer 26, and the stirring water flow is spread to every corner of the fluff chamber 21, the movable blade 33. -The dust and sebum adhering to 44 and the fixed blades 32 and 43 can be reliably washed and removed. Further, the dust and sebum adhering to the stirrer 26 and the surrounding wall exposed inside the fuzz chamber 21 can be surely washed and removed. The dust and sebum adhering to the blade 58 can be reliably washed. When cleaning is performed by immersing the head part 2 in cleaning water containing a detergent, the decomposition of sebum and the like can be promoted by the foam generated by the stirring action, so that cleaning can be performed more effectively.

  When the cleaning is completed, the movable blades 33, 44 and 59 of the main blade 5 and the upper trimmer blade 6 and the stirrer 26 are idled, and the cleaning water is splashed off to drain the water. Furthermore, the moisture adhering to the periphery of the cutting part 18 is wiped off, and the inside of the fuzz chamber 21 is dried. After that, the cosmetic case 20 is mounted on the drive unit 19 again, and the water flow opening 27 and the lock release knob 111 around the cutting unit 18 are covered with the cosmetic case 20. In the process of mounting the decorative case 20 on the drive unit 19, the operation protrusion 121 provided on the inner surface of the decorative case 20 contacts the operation unit 50 of the stirrer 26 so that the entire stirrer 26 is attached to the kick spring 54. It is swung upward around the agitation shaft 52 against the force and held in a standby posture. Therefore, the connecting claw 52 is separated from the engaging recess 56 of the drive piece 55 and interrupts power transmission from the vibrator 90 to the stirring body 26.

  According to the electric shaver configured as described above, cleaning is performed while the movable blades 33, 44, and 59 are driven, so that the cleaning water introduced into the filing chamber 21 can be moved to the movable blades 33, 44, and 59 and the stirring body 26. And can be washed with forced stirring. At this time, the movable blades 33, 44, and 59 stir the surrounding cleaning water in the rotational direction of the movable blades 33 and 44, and the stirrer 26 stirs in the left-right direction along the stirring shaft 53. Therefore, a complicated stirring water flow can be formed inside the fuzz chamber 21 and the stirring water flow can be distributed to every corner of the fuzz chamber 21, and the movable blades 33, 44, 59 and the fixed blades 32, 43, 58 can be provided. Of course, the object to be cleaned such as the stirrer 26 and the surrounding wall exposed inside the fuzz chamber 21 can be accurately cleaned.

  In addition, the vibrator 90 integrally including the drive shaft 94, the drive shaft 95, and the vibrator main body 93 simultaneously reciprocates the movable blades 59 and 66 of the upper trimmer blade 6 and the side trimmer blade 7, so that the head portion 2 The upper trimmer blade 6 and the side trimmer blade 7 can be accurately driven while avoiding the complexity of the reciprocating power transmission structure.

The electric shaver having the above-described configuration can be implemented in the following manner.
The cutting part 18 includes a rotary blade 5A. A gear transmission structure for transmitting the rotational power of the motor 16 to the movable blade 33 is provided between the motor 16 and the movable blade 33 of the rotary blade 5A. As shown in FIG. 3, the rotary blade 5A includes a fixed blade 32, a movable blade 33, a movable blade gear 82, a tilting frame 34 that supports them, and a return spring 35 that biases the tilting frame 34 toward the standby position. (See FIG. 5). The tilt frame 34 is supported so as to be tiltable about the central axis of the final gear 81 of the gear transmission structure, and can be tilted back and forth while the movable blade gear 82 is engaged with the final gear 81.

  In this way, when the fixed blade 32 and the movable blade 33 of the rotary blade 5A are supported by the tilt frame 34, and the tilt frame 34 is supported so as to be tiltable back and forth around the central axis of the final gear 81 of the gear transmission structure, the rotary blade It is possible to smoothly follow changes in the skin surface while tilting 5A with a smaller skin reaction force. Therefore, whisker cutting with the rotary blade 5A can be easily performed.

  As shown in FIG. 10, the tilting base end portion of the tilting frame 34 is pivotally supported by a tilting shaft 87 engaged with a bearing hole 88 of a boss 85 that pivotally supports the final gear 81. The outer surface of the tilt shaft 87 is received by the side cover 25 that covers the outer surface of the gear transmission structure including the final gear 81 so that it cannot be detached.

  Thus, the tilting proximal end portion of the tilting frame 34 is pivotally supported by the tilting shaft 87 engaged with the bearing hole 88 of the boss 85 that pivotally supports the final gear 81, and the outer surface of the tilting shaft 87 is supported by the side cover 25. If it is accepted that it cannot be removed, the tilting frame 34 and the final gear 81 can be positioned more precisely. Therefore, the meshing state of the final gear 81 and the movable blade gear 82 provided on the tilting frame 34 is optimized, and the power transmission between the final gear 81 and the movable blade gear 82 is accurately performed without any power loss. It can be done. Further, since the outer side surface of the tilt shaft 87 is covered with the side cover 25, the side cover 25 can prevent the gear noise generated in the gear transmission structure including the final gear 81 from leaking to the outside.

  The front surface of the tilt frame 34 is covered with a front cover 23 fixed to the tilt frame 34. On the inner surface of the front cover 23, an elastic piece 38 is disposed for pulling and urging the fixed blade 32 downward to bring it into close contact with the rotary blade (see FIG. 6).

  Thereby, when the front cover 23 is fixed to the front surface of the tilting frame 34 and the fixed blade 32 is pulled and biased by the elastic piece 38 provided on the inner surface thereof, the fixed blade 32 can always be brought into close contact with the movable blade, Therefore, the sharpness of the rotary blade 5A tilting back and forth can be improved. Further, since the elastic piece 38 is disposed on the inner surface of the front cover 23, the fixed blade 32 and the elastic piece 38 can be assembled and the elastic piece 38 and the front cover 23 can be assembled easily.

  The gear transmission structure provided in the head unit 2 includes a lateral transmission system that transmits the rotational power of the motor 16 toward one side of the head frame 73, and a movable blade 33 of the rotary blade 5A that inherits the power of the lateral transmission system. It consists of a vertical transmission system that transmits to As shown in FIG. 5, a longitudinal transmission gear group is arranged along the outer surface of one side wall 29 among the side walls 29 erected on both sides of the cutting part frame 22. The stirrer 26 is supported by a stirrer shaft 53 so as to be able to reciprocate between the standby position and the drive position, and is urged toward the drive position by a spring 54. The stirrer 26 is provided with a stirrer base 48 having a group of fins 49, a connecting part 52 connected to a driving structure for a reciprocating cutting blade unit at a driving position, and a decorative case 20 attached to the head part 2. And an operation unit 50 for switching the stirring body 26 from the driving position to the standby position. In a state where the decorative case 20 is detached from the head portion 2, the stirring body 26 is displaced to the driving position, the connecting portion 52 is connected to the driving structure for the reciprocating cutting blade unit, and the stirring body 26 is connected to the stirring shaft 53. Can be driven back and forth. The stirring shaft 53 that supports the stirring body 26 bridges both side walls 29 of the cutting portion frame 22.

  As a result, the gear transmission structure is composed of a horizontal transmission system and a vertical transmission system, and the electric razor in which the gear group of the vertical transmission system is arranged along the outer surface of one side wall 29, and the agitation that guides the front and rear stirring bodies 26 is guided. When the side walls 29 are bridged by the shaft 53, the structural strength of the side walls 29 can be increased. Therefore, the meshing accuracy of the gear group constituting the vertical transmission system arranged on the outer surface of the side wall 29 can be improved.

(Another embodiment)
13 to 15 show another embodiment of the electric razor according to the present invention. Here, the point that the main blade 5 is constituted by a pair of front and rear reciprocating cutting blade units and the point that the stirring member 26 is constituted by a single member are different from the electric razor according to the previous embodiment.

  Specifically, as shown in FIG. 13, the main blade 5 has a front-side first reciprocating blade (reciprocating cutting blade unit) 131 </ b> A and a rear-side second reciprocating blade (reciprocating cutting blade unit). 131B. The first reciprocating blade 131A includes a fixed blade (outer blade) 132 made of a mesh blade, a movable blade (inner blade) 133 made of a slit blade, a movable blade base 134 that supports the movable blade (inner blade) 133, and the like. Constitute. Similarly, the first reciprocating blade 131B includes a fixed blade (outer blade) 135 made of a mesh blade, a movable blade (inner blade) 136 made of a slit blade, and a movable blade base that supports the movable blade (inner blade) 135. 137 or the like. The front end of the fixed blade 132 of the first reciprocating blade 131A and the rear end of the fixed blade 135 of the second reciprocating blade 131B are fixed to the cutting part frame 22, respectively, and the rear end of the former fixed blade 132 and the latter The front ends of the fixed blades 135 are fixed to tension frames 147 that are pressed and biased by springs 146, respectively.

  The movable blade bases 134 and 137 of the first and second reciprocating blades 131A and 131B are supported by the cutting portion frame 22 so as to be slidable only in the left and right directions, and the passive portions 138 and 139 that inherit the reciprocating power at the left and right centers. Is provided. In order to drive the front and rear movable blades 133 and 136 simultaneously, the drive piece 140 is connected to the first drive shaft 94 of the vibrator 90, and the drive pins 141 and 142 provided on the front and rear of the drive piece 140 are connected to the passive portion 138. -It is engaged with 139.

  As shown in FIG. 14, the stirring body 26 includes a stirring base 48 having an H shape in plan view, a front row and a rear row of fins 49 protruding from the upper surface of the stirring base 48, and a front end of the stirring base 48. And an operation unit 50 made of triangular cam pieces provided on the left and right sides. The stirrer 26 is supported by the head frame 73 so as to be slidable back and forth, and is slidably biased toward the front drive position by a compression coil spring 54. In the front and rear center of the agitation base 48, a left and right escape hole 145 and a connecting hole (connecting portion) 52 are formed in an inverted T shape.

  In a state where the decorative case 20 is mounted on the drive unit 19, as shown in FIG. 13, the operation protrusions (operating bodies) 121 provided on the left and right inner surfaces of the decorative case 20 come into contact with the operating unit 50 and the stirring body 26 is moved. The spring 54 is held at the rear standby position against the urging force of the spring 54. Further, in a state where the decorative case 20 is detached from the drive unit 19, as shown in FIG. 15, the restraint of the operation unit 50 by the operation protrusion 121 is released, so that the agitator 26 slides to the front drive position by the spring 54. The connecting hole 52 is engaged with the first drive shaft 94 by being displaced. Therefore, when the first and second reciprocating blades 131A and 131B are washed with water while reciprocating in the left-right direction, the stirrer 26 is simultaneously reciprocated in the same direction as both the reciprocating blades 131A and 131B. The washing water inside can be stirred. Since others are the same as the previous embodiment, the same reference numerals are assigned to the same members, and descriptions thereof are omitted.

  As described above, the stirring structure according to the present invention can be widely applied regardless of whether the main blade 5 has a rotary structure or a reciprocating structure. In the above-described another embodiment, the case where the main blade 5 is composed of both the first and second reciprocating blades 131A and 131B has been described. However, the main blade 5 is a single reciprocating cutting blade unit. It may be configured with.

The configuration of the electric shaver including the above two embodiments can be implemented in the following manner.
That is, as shown in FIG. 2, a main body portion 3 including a grip portion 1 and a head portion 2 is provided. The head unit 2 drives the cutting blade 18 having the movable blades 33, 44, 59, 133, and 136 and the fixed blades 32, 43, 58, 132, and 135, and the drive for driving the movable blades 33, 44, 59, 133, and 136. The drive part 19 provided with the structure and the decorative case 20 attached to and detached from the head part 2 are included (see FIG. 1). Around the cutting part 18, there is provided a water passage opening 27 that leads to the fuzz chamber 21 inside the cutting part 18. The water passage opening 27 can be covered with a cosmetic case 20 attached to the head portion 2 or can be removed by removing the makeup case 20 from the head portion 2, and washing water can be discharged from the water passage opening 27 in the opened state. It introduce | transduces into the inside of the fuzz chamber 21 and is washed with water. The cutting portion 18 in this case may be in the form of either a rotary cutting blade or a reciprocating cutting blade, and includes both a rotary cutting blade and a reciprocating cutting blade. May be.

  The head unit 2 is constituted by the cutting unit 18, the drive unit 19 that drives the movable blades 33, 44, 59, 133, and 136 of the cutting unit 18, and the decorative case 20 that is attached to and detached from the head unit 2. A water passage opening 27 that leads to the fuzz chamber 21 is provided around the portion 18. Further, by attaching / detaching the decorative case 20 to / from the head portion 2, the water passage opening 27 can be covered or hidden by the makeup case 20, and the washing water can be removed from the opened water passage opening 27. It was introduced into the waste chamber 21 so that it could be washed with water. Thereby, in the state where the cosmetic case 20 is removed from the head portion 2, the water passage opening 27 around the cutting portion 18 can be opened in a state of being largely exposed, so that the introduction and discharge of the washing water to the fuzz chamber 21 can be ensured. Yes. In addition, cleaning is performed while driving the movable blades 33, 44, 59, 133, and 136, whereby the cleaning water introduced into the fluff chamber 21 is forcibly stirred by the movable blade 33, It is possible to spread the stirring water stream as much as possible. As a result, not only debris and sebum adhering to the movable blades 33, 44, 59, 133, 136 and the fixed blades 32, 43, 58, 132, 135, but also the inner peripheral surface and the bottom surface of the fluff chamber 21 are adhered. It can be washed and removed reliably by applying a stirring water flow to the shavings and sebum. During cleaning, the movable blades 33, 44, 59, 133, and 136 and the fixed blades 32, 43, 58, 132, and 135 are in the same state as when shaving, for example, the two are in close contact with each other, or through a slight gap. Wash in the adjacent state. As described above, when cleaning is performed while driving the movable blades 33, 44, 59, 133, and 136 in the same state as when shaving, the movable blades 33, 44, 59, 133, and 136 and the fixed blades 32 and 43 are driven. -It is possible to clean the hairs and sebum adhering to or sticking to 58, 132 and 135 while forcibly scraping them off. Therefore, as compared with the conventional electric razor in which the swarf is simply washed away with washing water, the swarf and sebum are more reliably cleaned and removed, and the movable blades 33, 44, 59, 133, and 136 are fixed. It is possible to keep the blades 32, 43, 58, 132, 135, or the interior of the fuzz chamber 21 clean.

  A stirrer 26 that stirs cleaning water in cooperation with the movable blades 33, 44, 59, 133, and 136 is disposed inside the fuzz chamber 21. In the state where the decorative case 20 is removed from the head portion 2, the stirring body 26 can be driven by the drive structure for the movable blade.

  As described above, when the stirrer 26 is provided inside the fluff chamber 21 and the stirrer 26 can be driven by the driving structure for the movable blade, the movable blades 33, 44, 59, 133, and 136 are driven. When cleaning is performed, the movable blades 33, 44, 59, 133, and 136 and the stirring body 26 cooperate to clean the cleaning water introduced into the fluff chamber 21 while forcibly stirring. Thereby, the flow state of the washing water in the interior of the fuzz chamber 21 can be complicated, and the stirring water flow can be spread to every corner of the foul chamber 21 more reliably. Therefore, not only the movable blades 33, 44, 59, 133, and 136 and the fixed blades 32, 43, 58, 132, and 135, but also the objects to be cleaned such as the stirrer 26 exposed to the inside of the fuzz chamber 21 and the surrounding wall are surely secured. Can be washed.

  The cutting part 18 includes reciprocating cutting blade units 6, 131 A, and 131 B. The stirrer 26 is supported so as to be able to reciprocate between a standby position (state shown in FIG. 1) and a drive position (state shown in FIG. 9), and is urged toward the drive position by a spring 54. As shown in FIG. 8, the stirrer 26 includes a stirrer base 48 having a group of fins 49 and a connecting portion 52 that is connected to the drive structure for the reciprocating cutting blade units 6 131A 131B at the drive position. And an operation unit 50 for switching the stirring body 26 from the drive position to the standby position in conjunction with the operation of mounting the decorative case 20 on the head unit 2. In a state in which the decorative case 20 is removed from the head portion 2, the agitator 26 is displaced to the driving position, and the connecting portion 52 is connected to the drive structure for the reciprocating cutting blade units 6, 131A, 131B. 26 can be reciprocated.

  Thus, in the cutting part 18 including the reciprocating cutting blade units 6, 131A, 131B, the stirrer 26 is displaced to the driving position in a state in which the decorative case 20 is removed, and the connecting part 52 is cut in the previous cutting. When connected to the drive structure for the blade unit, the trouble of switching the stirring body 26 to the drive position before cleaning can be saved. Therefore, it is only necessary to remove the cosmetic case 20 from the head portion 2 and introduce cleaning water from the opened water passage opening 27 at the time of cleaning, and the labor required for cleaning can be saved. Further, since the stirrer 26 is driven reciprocally using the drive structure for the reciprocating cutting blade units 6, 131A, 131B, there is no need to provide a separate drive structure for driving the stirrer 26. Therefore, the structure of the head part 2 can be simplified and the cost can be reduced. Furthermore, since the washing water is stirred all at once along the stirring shaft 53 by the group of fins 49 provided on the stirring base 48, the washing water is stirred over a wider range in the fluff chamber 21, and the stirred water flow is changed. The cleaning effect can be improved by spreading more accurately to every corner of the fuzz chamber 21.

  In the face wall of the agitation base 48 facing the space sandwiched between the adjacent fins 49, a through hole 51 that allows passage of washing water and fuzz is opened (see FIG. 8).

  As described above, when the passage 51 allowing passage of the washing water and the hair chips is opened on the face wall of the stirring base 48, a part of the water flow stirred by the group of fins 49 flows through the passage 51. Thus, the stirring water flow can be fed to the region below the stirring base 48. Therefore, the washing water can be distributed to the bottom wall of the fuzz chamber 21 facing the agitation base 48 to wash off the fuzz and sebum. Further, when shaving, the shavings cut by the movable blades 33, 44, 59 and the fixed blades 32, 43, 58 are dropped from the mouth 51, and the shavings accumulate on the surfaces of the stirring base 48 and the fins 49. Can be prevented.

  The cutting part 18 includes a cutting part frame 22 and is unitized. The cutting part 18 made into unit parts is detachably attached to the driving part 19.

  As described above, according to the cutting unit 18 that is a unit part including the cutting unit frame 22, the fixed blades 32, 43, 58, 132, and 135 and the movable blades 33, 44, 59, and 133 provided in the cutting unit 18 are used. -The assembly accuracy of 136 can be maintained in the state at the time of manufacture. Therefore, it is possible to always perform beard cutting with the fixed blades 32, 43, 58, 132, and 135 and the movable blades 33, 44, 59, 133, and 136 accurately. By the way, in the cutting part structure that can separate the fixed blade and the movable blade for cleaning and cleaning, the contact state of the fixed blade and the movable blade may vary every time cleaning and cleaning are performed. It tends to cause variations in sharpness. Moreover, when the cutting part 18 made into a unit part is detachably attached to the driving part 19, the cutting part 18 is removed from the driving part 19, thereby easily removing hair chips and sebum that have entered the joint surfaces of both. Thus, the interior of the fuzz chamber 21 can be kept clean, and the occurrence of decaying odors and off-flavors can be prevented.

  The stirring body 26 is assembled to the cutting part frame 22 of the cutting part 18 that is unitized.

  Thus, when the stirring body 26 is assembled to the cutting part frame 22 of the cutting part 18 that is unitized, when the cutting part 18 with reduced sharpness is replaced, the stirring body 26 can also be replaced at the same time. Accordingly, it is possible to save the trouble of separately removing and replacing the stirrer 26 in which the drive portion is worn or deteriorated.

  A first lock structure 106 is provided between the drive unit 19 and the cut unit 18 that is unitized so as to lock and hold the cut unit 18 attached to the drive unit 19 so as not to be separated (see FIG. 6). A first release body 111 for unlocking the first lock structure 106 is provided on the outer surface of the drive unit 19. Between the drive part 19 and the decorative case 20, the 2nd lock structure 107 which locks and holds the decorative case 20 with which the drive part 19 was mounted | worn so that isolation | separation is impossible is provided. A second release body 125 for releasing the lock of the second lock structure 107 is provided on the outer surface of the drive unit 19. The first release body 111 is exposed on the outer surface of the drive unit 19 only when the decorative case 20 is removed from the drive unit 19.

  In this way, the cutting part 18 and the decorative case 20 attached to the drive part 19 are held in a non-separable manner by the first and second lock structures 106 and 107, respectively, and in the normal use state, the first release body If the outer surface of 111 is covered with the decorative case 20, the unlocking operation of the first release body 111 can be restricted by the decorative case 20. That is, it is possible to reliably restrict the first release body 111 from being erroneously operated and separating the cutting part 18 from the driving part 19 in a normal use state. Further, when the decorative case 20 is detached from the drive unit 19, the unlocking operation of the first release body 111 exposed on the outer surface of the drive unit 19 is allowed, so that the cutting unit 18 is separated from the drive unit 19 and both 18 -It is possible to maintain the sanitary state of the head unit 2 in a more suitable state by washing the hair chips and the like that have entered the 19 joining surfaces.

  As shown in FIG. 11, the first lock structure 106 includes a pair of front and rear lock frames 108 each having a lock claw 113 that engages with the cutting portion frame 22, and an interlocking lever that connects at least one end of each lock frame 108. 109, a lock spring 110 for urging both lock frames 108, and a first release body 111 for unlocking one of the lock frames 108 against the urging force of the lock spring 110. The unlocking direction of the driving-side lock frame 108 that is unlocked by the first releasing body 111 and the unlocking direction of the driven-side lock frame 108 are set in opposite directions.

  As described above, the first lock structure 106 is configured by using the pair of front and rear lock frames 108 and the interlocking lever 109 as the main structure, and the lock frames 108 are moved in opposite directions when locked or unlocked. Then, the switching operation of the first release body 111 can be smoothly transmitted to each lock frame 108. Therefore, the switching operation of the first lock structure 106 by the first release body 111 is appropriately performed, and the attachment / detachment of the cutting unit 18 with respect to the drive unit 19 can be performed accurately. Incidentally, when the entire lock frame formed in the square frame shape is moved and operated in one direction by the first release body, the frame portion connected to the first release body can surely accompany, but the previous frame portion The frame part on the opposite side may be twisted and cannot move sufficiently. However, if the lock frames 108 are moved in the opposite directions as described above, the lock frame 108 on the side not connected to the first release body 111 can be prevented from being twisted.

  A main body part 3 including a grip 1 and a head part 2 provided on the upper part of the grip 1 is provided. A reciprocating cutting blade unit 6, 131 A, 131 B including movable blades 59, 133, 136 and fixed blades 58, 132, 135 is provided on the upper part of the main body 3, and this embodiment is provided on the side of the main body 3. Then, a reciprocating cutting blade unit 7 including a movable blade 66 and a fixed blade 65 is provided on the rear side. A vibrator 90 that reciprocally drives the movable blades 59, 66, 133, and 136 on the top and sides of the main body 3 by converting the power of the motor 16 into reciprocating power to the upper portion of the main body 3, that is, the head 2. Is provided. A plurality of guide shafts 96 and 97 are provided in the front and rear in the upper part of the main body 3, that is, the head 2. A vibrator main body 93 of the vibrator 90 is supported (guided) by a plurality of guide shafts 96 and 97 arranged in parallel so as to be slidable back and forth. The side portion is interpreted to include the front side portion, the right side portion, and the left side portion in addition to the rear side portion. Therefore, the side trimmer blade (reciprocating cutting blade unit) 7 can be disposed on any one of the front side portion, the right side portion, and the left side portion of the main body portion 3.

  As described above, when the vibrator main body 93 of the vibrator 90 is supported (guided) by the plurality of guide shafts 96 and 97 arranged in parallel so as to be slidable back and forth, the stroke when the vibrator 90 slides back and forth is always constant. Thus, it is possible to eliminate the change in the slide stroke due to a change in load or the like. Further, the vibrator 90 during reciprocating sliding is restricted from moving back and forth or up and down by both guide shafts 96 and 97, so that power can be prevented from being wasted. Therefore, the power conversion by the vibrator 90 can be performed more appropriately, and the transmission efficiency of the motor power can be improved.

  The vibrator main body 93 of the vibrator 90 is supported (guided) by the first guide shaft 96 and the second guide shaft 97 so as to be slidable back and forth. A cam structure that converts the rotational power of the motor 16 into reciprocating power is provided on the lower surface of the vibrator 90 between the first guide shaft 96 and the second guide shaft 97. The cam structure includes an eccentric pin 91 and a passive groove 92. The cam structure may be a structure in which an elastic arm is integrally provided on the lower surface of the vibrator body 93 and the eccentric pin 91 is engaged with an engagement hole formed on the free end side thereof.

  As described above, when the cam structure for power conversion is provided on the lower surface of the vibrator 90 between the first guide shaft 96 and the second guide shaft 97, both guide shafts 96 and 97 are included in the vibrator 90. Power conversion can be performed in the part that is stably supported by. Therefore, it is possible to perform power conversion appropriately and with no transmission loss while restricting the vibrator 90 from moving back and forth or up and down.

  In the vicinity of the first guide shaft 96, a first drive shaft 94 that drives the movable blades 59, 133, and 136 of one of the reciprocating cutting blade units 6, 131A, and 131B is provided. A second drive shaft 95 for driving the movable blade 66 of the other reciprocating cutting blade unit 7 is provided in the vicinity of the second guide shaft 97.

  As described above, when the first drive shaft 94 is provided in the vicinity of the first guide shaft 96 and the second drive shaft 95 is provided in the vicinity of the second guide shaft 97, the reciprocating movable blades 59, 66, 133,. 136 and the vibrator 90 are connected at a shorter distance, and the base portions of the drive shafts 94 and 95 can be always guided in a stable state by the guide shafts 96 and 97, respectively. Therefore, the guide shafts 96 and 97 restrict the first and second drive shafts 94 and 95 from moving back and forth or up and down, so that the movable blades 59, 66, 133, and 136 Reciprocating drive can be performed accurately in the absence.

  The vibrator body 93 is provided with slide holes 98 and 99 guided by both the first and second guide shafts 96 and 97. One of the slide holes 98 and 99 is formed as a long hole that absorbs the variation in the distance between the shafts 96 and 97.

  As described above, when one of the slide holes 98 and 99 is formed as a long hole, even if there is a variation in the distance between the first and second guide shafts 96 and 97 and the parallelism, the long hole is formed. The slide hole 99 can absorb the variation. Accordingly, the vibrator 90 can be always reciprocated smoothly while eliminating the occurrence of a large frictional resistance at the twisted portion due to the vibrator 90 sliding back and forth.

  The vibrator 90 is accommodated in the head frame 73. The first drive shaft 94 and the second drive shaft 95 protrude to the outer surface of the head frame 73 through a first opening 101 and a second opening 102 provided in the head frame 73, respectively. The space between the first drive shaft 94 and the first opening 101 and the space between the second drive shaft 95 and the second opening 102 are sealed in a watertight manner by the first seal body 103 and the second seal body 104, respectively.

  As described above, the vibrator 90 is housed in the head frame 73, and the first and second openings 101 and 102 between the first and second drive shafts 94 and 95 and the first and second openings 101 and 102, respectively. Sealing in a watertight manner with the seal bodies 103 and 104 can prevent foreign matters such as hair dust from entering the inside of the head frame 73. Therefore, the operation of the vibrator 90 provided inside the head frame 73 can be reliably prevented from being obstructed by foreign matters such as hair dust, and the cam hitting sound or the like of the vibrator 90 in the head frame 73 can be The first and second seal bodies 103 and 104 can prevent leakage.

  The first guide shaft 96 and the second guide shaft 97 are provided in a state shifted in the front-rear direction of the main body 3 and in a stepped state shifted in the vertical direction.

  With the above configuration, the distance between one reciprocating cutting blade unit 6 and the other reciprocating cutting blade unit 7 can be sufficiently separated, and when the cutting blade unit 6 is used, cutting is performed. The blade unit 7 does not get in the way. Moreover, even if the cutting blade units 6 and 7 are separated, the guide shafts 96 and 97 correspond to the cutting blade units 6 and 7 in position so that the transmission efficiency is reliably prevented from being lowered. it can.

  In the above embodiment, the stirrer 26 is linearly reciprocated along the stirrer shaft 53, but this is not necessary, and the stirrer 26 can be driven to swing around one shaft. The stirring body 26 can be provided with fins 49 on the upper and lower surfaces of the stirring base 48. The stirring body 26 should just be arrange | positioned at least in any one of front and back inside the fluff chamber 21. The lock frame 108 in the first lock structure 106 may be connected by a pair of left and right interlocking levers 109 on both side ends. In the above embodiment, the side trimmer blade (reciprocating cutting blade unit) 7 has a structure that rotates and protrudes. For example, the side trimmer blade (reciprocating cutting blade unit) 7 slides with the trimmer frame 64. The knob 68 is integrally formed, and the slide knob 68 is pushed up and slid to move the trimmer frame 64 upward, so that the fixed blade 65 and the movable blade 66 of the side trimmer blade (reciprocating cutting blade unit) 7 are moved. The structure close | similar to the main cutting surface 4 of the upper part of the main-body part 3, ie, the upper part of the head part 2, may be sufficient. Even in this case, since the side trimmer blade (reciprocating cutting blade unit) 7 is in a lower standby position when not in use, the side trimmer blade (reciprocating cutting blade unit) 6 is used when the one side trimmer blade (reciprocating cutting blade unit) 6 is used. It is possible to prevent the blade (reciprocating cutting blade unit) 7 from getting in the way.

DESCRIPTION OF SYMBOLS 1 Grip part 2 Head part 3 Main-body part 4 Main cutting surface 5 Main blade 5A 1st rotary blade 5B 2nd rotary blade 6 Upper trimmer blade (reciprocating type cutting blade unit)
7 Side trimmer blade (reciprocating cutting blade unit)
DESCRIPTION OF SYMBOLS 8 Cutting part 19 Drive part 20 Cosmetic case 21 Fluff chamber 22 Cutting part frame 26 Stirring body 27 Water flow opening 32/43 Main blade fixed blade 33/44 Movable blade of main blade 48 Stirring base 49 Fin 50 Operation part 58 Upper part Trimmer blade fixed blade 59 Upper trimmer blade movable blade 65 Side trimmer blade fixed blade 66 Side trimmer blade movable blade 90 Vibrator 94 First drive shaft 95 Second drive shaft 96 First guide shaft 97 Second guide Shaft 132 Fixed blade of first reciprocating blade 133 Movable blade of first reciprocating blade 135 Fixed blade of second reciprocating blade 136 Movable blade of second reciprocating blade

Claims (6)

A reciprocating cutting blade unit (6, 131A, 131B) including a movable blade (59, 133, 136) and a fixed blade (58, 132, 135) is provided on the upper portion of the main body (3). A reciprocating cutting blade unit (7) including a movable blade (66) and a fixed blade (65) is provided on the side of (3),
A vibrator (90) for converting the power of the motor (16) into reciprocating power and reciprocatingly driving the movable blades (59, 66, 133, 136) on the upper and side portions of the main body (3) includes a main body ( 3) An electric shaver which is supported by a plurality of guide shafts (96, 97) arranged parallel to the upper part of 3) so as to be slidable back and forth. The vibrator main body (93) of the vibrator (90) is supported by a first guide shaft (96) and a second guide shaft (97) arranged in parallel with the upper portion of the main body (3) so as to be reciprocally slidable. And
A cam structure for converting the rotational power of the motor (16) into reciprocating power is provided on the lower surface of the vibrator (90) between the first guide shaft (96) and the second guide shaft (97). The electric razor according to claim 1.   In the vicinity of the first guide shaft (96), a first drive shaft 94 for driving the movable blades (59, 133, 136) of one of the reciprocating cutting blade units (6, 131A, 131B) is provided. The second drive shaft (95) for driving the movable blade (66) of the other reciprocating cutting blade unit (7) is provided in the vicinity of the two guide shafts (97). 2. The electric razor according to 2.   The vibrator body (93) is provided with slide holes (98, 99) guided by both the first and second guide shafts (96, 97), and one of the slide holes (98, 99) is The electric razor according to any one of claims 1 to 3, wherein the electric razor is formed by an elongated hole that absorbs the variation in the distance between the shafts of both guide shafts (96, 97). The vibrator (90) is accommodated in a head frame (73) disposed on the upper part of the main body (3),
The first drive shaft (94) and the second drive shaft (95) are respectively connected to the outer surface of the head frame (73) through the first opening (101) and the second opening (102) provided in the head frame (73). Protruding,
Between the first drive shaft (94) and the first opening (101) and between the second drive shaft (95) and the second opening (102), the first seal body (103) and the second seal are respectively provided. The electric shaver according to any one of claims 1 to 4, wherein the electric shaver is sealed in a water-tight manner by the body (104).   The first guide shaft (96) and the second guide shaft (97) are provided in a state shifted in the front-rear direction of the main body (3) and in a stepped state shifted in the vertical direction. Item 6. The electric shaver according to any one of Items 1 to 5.

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