JPS6216664B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an electric shaver, particularly an electric shaver that has two blade parts: a main blade part consisting of an outer cutter and an inner cutter that slides on the inner surface of the outer cutter, and a trimmer blade part. This relates to the electric shaver provided.

[Background Art] In the above-mentioned device having two types of blades, from the viewpoints of attachment and detachment when replacing the outer blade and power transmission to the movable blade in the trimmer blade, it is generally disclosed in US Pat. No. 4,031,617. As shown in the specification, only the outer cutter is attached to the blade frame, and the trimmer blade is attached to the housing separately from the blade frame. However, with this structure, the trimmer blade and the outer blade are separated by a large distance, making it difficult to perform operations such as performing a rough shave with the trimmer blade, followed by a finishing shave with the main blade. Hateful.

Of course, an electric shaver that has not only an outer blade but also a trimmer blade attached to the blade frame has been patented in the US patent.
3844035, etc., but also in the devices shown therein, a trimmer drive element for transmitting power to the movable blade of the trimmer blade is formed to protrude behind the trimmer blade. Therefore, due to the arrangement relationship between the outer cutter and the trimmer drive element, the trimmer blade part has to be placed at a lower position away from the outer cutter, and the above method of use cannot be used. Ta.

Here, in Utility Model Application Publication No. 53-113794,
The trimmer driver is pivotally supported on the back of the mounting board on which the trimmer blade is installed at the upper end, and the upper end of this trimmer driver is connected to the movable blade, and the lower end of the trimmer driver is used as a drive for driving the inner blade. A device is disclosed in which the trimmer blade portion can be disposed close to the main blade portion by being connected to the main blade portion. However, the method disclosed in this publication also had the following problems. In other words, the mounting board with the trimmer blade on the top end is formed as a part of the switch handle, and even when only the main blade is driven by moving the switch handle, the trimmer blade will move. This is troublesome and also has the problem that when the trimmer blade is operated, the vibration is transmitted to the switch handle. In order to avoid this problem, when the mounting board is separated from the switch handle and fixed to the blade frame, only the main blade can be operated by operating the switch handle, and the main blade and trimmer blade can be operated only by operating the switch handle. This makes it difficult to switch between operating states of both parts.

[Object of the Invention] The present invention has been made in view of the above points, and its purpose is to enable the trimmer blade to be disposed close to the outer cutter of the main blade, so that the trimmer blade Not only can you perform a rough shave with the main blade section followed by a finishing shave with the main blade section, but even though the mounting board on which the trimmer blade section is installed is a separate member from the switch operation member, it is possible to perform only the main blade section. To provide an electric shaver capable of switching between an operating state and a state in which both a main blade part and a trimmer blade part are operated only by operating a switch operating member.

[Disclosure of the Invention] The present invention provides an electric shaver in which an outer cutter in the main cutter section consisting of an outer cutter and an inner cutter that slides on the inner surface of the outer cutter, and a trimmer cutter section are attached to the upper part of a blade frame. The trimmer blade part is arranged on the upper part of the mounting board arranged along the outer surface of the blade frame, and the upper end is connected to the movable blade in the trimmer blade part, and the lower end part is connected to the drive element for driving the inner blade. The trimmer drive element, which can be freely connected through an opening formed in the outer wall of the blade frame, is pivoted on a shaft on the back of the mounting board, and the main body housing, on which the blade frame is attached, has a contact drive element. and a switch operating member for controlling the connection between the inner cutter drive element and the trimmer drive element via a slide lever. The above-mentioned slide lever is pushed in a specific range of movement during the entire stroke of the switch operating member to connect the driver and trimmer driver, and returns under the force of a return spring to connect the driver and trimmer driver. The trimmer driver located on the back of the mounting board is a slide lever that is linked only to a part of the movement of the switch operating member, and the trimmer driver is used to drive the inner blade. It is designed to be connected to the driver of the motor.

The present invention will be explained in detail below based on the illustrated embodiments. The electric shaver shown here is a so-called reciprocating type that is waterproof and has an extremely slender finish. It consists of a battery cover 3 and a blade frame 2 attached to the upper part of the main body housing 1, and a switch handle 7 is arranged in a concave part provided on the front side of the main body housing 1 so as to be able to slide up and down. ing. Both the part of the main body housing 1 excluding the upper part where the width is increased and the battery cover 3 have an outer surface shape that is continuous vertically and both have an oval horizontal cross section, and the outer surface that is continuous to the upper part of the main body housing 1 is an oval shape. A thin metal outer blade 21 is attached to the upper surface of the shaped blade frame 2, and a trimmer block 4 is attached to the upper front surface of the blade frame 2.

As shown in FIG. 2, the main body housing 1 is a synthetic resin molded product having a cylindrical shape with openings at the top and bottom, and screw receiving bosses 11 are provided at each of the four corners of the wide upper inner surface. A recess 12 is formed on the front surface of the central portion, and a slightly narrowed cylindrical portion 18 is formed at the bottom. The recess 12 has an upper end that opens upward apart from the internal space passing through the center of the main body housing 1, and is surrounded by vertical ribs 13 on both left and right sides and a double rectangular rib 14 at the lower center. The closed window 15 is open. This window 1
A contact spring 91, which is formed in a trifurcated shape and has contact pieces on both sides, is disposed within the window 15 by fixing its base end to the edge of the window 15, and between the double rectangular ribs 14. The window 15 is closed by a switch seal 38, which is attached to the periphery of the window 15. Switch handle 7 with a non-slip surface
is connected to the main body housing 1 via the handle board 70.
The handle base plate 70, which is attached to the handle board 70 and whose horizontal cross section is arcuate, has locking protrusions 77 protruding from the top and bottom of the inner surface of both ends thereof, and locking protrusions 77 formed on the outer surface of each vertical rib 13. The switch handle 7 is fixed to the main body housing 1 so as to cover the front surface of the recess 12 by being engaged with the recess 17. It is attached to the handle base plate 70 by being engaged with vertically long engagement grooves 76 on both ends of the handle base plate 70, and is slidable up and down. In the space surrounded by the vertical ribs 13 and the rectangular ribs 14 in the recess 12 whose front surface is closed by the handle board 70, there is a space in which the main body housing 1 can be slid up and down and is inserted through the upper end opening of the recess 12. A slider 71 whose upper end protrudes is arranged in the upper part, and a pin (not shown) of the switch handle 7 fits into an engagement hole 78 of the slider 71 through a pair of left and right vertical holes 75 provided in the handle base plate 70. It matches. The slider 71 moves up and down together with the switch handle 7, and at this time, the elastic click protrusions 79 at the lower ends of both sides of the slider 71 are connected to the upper and lower two-stage click protrusions 16 provided at the lower part of the inner surface of the vertical rib 13.
By overcoming this, the switch handle 7 can be positioned in three stages in total with respect to its vertical movement. A vertically long hole 74 provided at the center of the handle board 70 is used for inserting a pin 72 protruding from the center of the inner surface of the switch handle 7, as shown in FIGS. 6 to 8. Along with the upward movement operation, the central piece of the contact spring 91, which is bent so that the upper part thereof protrudes forward, is pressed and driven via the switch seal 38, thereby bending the contact pieces on both sides of the operation spring 91 backward. Let it happen.

The battery cover 3 has a cylindrical shape with a bottom that is open only at the top, and has vertically long vertical ribs 31 on the front and rear walls of the inner surface.
A connecting spring 81 is integrally provided, and when it is placed over the cylindrical portion 18 at the bottom of the main housing 1, the upper and lower ends thereof are engaged with the longitudinal grooves on the front and rear surfaces of the cylindrical portion 18.
As shown in FIG.
It is connected to the main body housing 1 by engaging with the notch 32 in the cylindrical part 18, and at this time, the O-ring 37 fitted to the upper end of the cylindrical part 18 waterproofs the connection part between the main body housing 1 and the battery cover 3. Ru. Two dry batteries 96 serving as a power source are housed from below in the cylindrical portion 18 of the main body housing 1, and both dry batteries 96, which are parallel to each other, are powered by an energizing spring 95 arranged on the bottom surface of the battery cover 3. connected in series.

The motor 9 is not directly disposed within the main body housing 1, but is mounted on a motor base 5 and this motor base 5.
It is housed in the upper part of the main body housing 1 as a drive block constructed with a mounting base 6 or a drive element 10 connected to the main body housing 1. As shown in FIG. 3, the motor base 5, which is a synthetic resin molded product, has upwardly projecting side pieces 51 on both sides and is open at the back. of,
Horizontal ribs 54 are made to protrude from both sides of the lower part, and retaining pins 52 are made to protrude from the upper end faces of each side piece 51. The motor 9 is housed through the rear opening in the internal space from the center to the bottom of the motor base 5 configured as described above, and has an eccentric shaft 99 with a balancer attached to its output shaft.
is positioned between the two pieces 51 above the partition piece 55 on the motor base 5. Further, in the two vertical grooves 56 on the front surface of the motor base 5, an energizing metal fitting 92 and a cathode metal fitting 93 are respectively provided. The current-carrying metal fitting 92 is connected to the cathode terminal of the motor 9 through a hole 57 provided at the lower front end of the motor base 5, and the lower end of the cathode metal fitting 93 is fixed to the lower surface of the motor base 5. It contacts the cathode of the dry battery 96. Further, from the rear side, an anode metal fitting 94 whose one end is connected to the anode terminal of the motor 9 and whose other end is arranged on the underside of the motor base 5 and contacts the anode of the dry cell battery 96 is attached so as to sandwich the bottom plate of the motor base 5. It is being

The mounting base 6 is also a synthetic resin molded product, and as shown in FIG. Screw insertion holes 61 that penetrate downward and open at the bottom surface of the flange 69 are provided at the four corners of the top surface, separate from the internal space connecting the bottom opening, and the center front surface is surrounded by surrounding ribs 67 on both sides and the bottom. A concave portion 64 is formed, and a slightly tapered skirt portion 65 is provided at the bottom. Concave portion 64
is a space in which a slide lever 20, which will be described later, is disposed, and is open upwardly apart from the internal space through a through portion 63. Furthermore, on one side of the upper part, there is an opening/closing button 8 equipped with a hook 87 that engages with the inner surface of the blade frame 2.
A recess 68 is formed on one side of the other upper part of the receiving part 62 for arranging the spring 88 for returning the springs 6 and 6, and engagement holes 66 are formed in both sides of the skirt part 65.
is provided.

The motor base 5 and the mounting base 6 are connected by placing the mounting base 6 over the top of the motor base 5 and engaging the locking protrusion 53 in the motor base 5 with the engagement hole 66. However, the moda base 5
The driver 10 is disposed in a space surrounded on all sides by the partition piece 55, the side pieces 51, and the mounting base 6.
As shown in FIG. 4, this drive element 10 has leaf springs 10 on both sides of a main body 100 whose front shape is an inverted U-shape.
1 extends upward, a cylindrical shaft 102 with an open upper end surface is erected from the center, and an arm 104 is protruded from the inner surface of one side piece of the main body 100, and is made of synthetic resin. Although the leaf spring 101 is easily deflected in the left and right directions, it does not deflect in the front and rear directions;
4 is said to be easy to bend in the front-back direction.
The driver 10 is positioned by inserting the fixing pins 52 at the left and right upper ends of the motor base 5 into the mounting holes 109 formed in the fixing pieces 103 at the upper ends of each leaf spring 101. 1
03 is clamped from above and below by a motor base 5 and a mounting base 6, thereby being fixed in a suspended state. The drive element 10 and the balancer-equipped eccentric shaft 99 attached to the motor 9 are connected at an arm 104. Arm 1
04 has an E-shaped planar shape, the front and rear side pieces are integrally connected to the side pieces of the main body 100, and the eccentric shaft 99 is connected to the tip of the center piece. Drive element 10 subjected to revolution movement of eccentric shaft 99
performs reciprocating motion in the left-right direction due to the above-mentioned deflection characteristics.

The driver element 10 attached in this way is the fifth
As shown in the figure and FIG. 6, the round hole 60 of the mounting base 6
The cylindrical shaft 102 is made to protrude above the mounting base 6 through. The space between the cylindrical shaft 102 and the round hole 60 has an inner circumferential portion in contact with the periphery of the base of the cylindrical shaft 102, and
The outer periphery is closed by a diaphragm-like packing 35 which is pressed against the circumference of the round hole 60 on the upper surface of the mounting base 6 by a pressing plate 34. The holding plate 34 is inserted into its four corners and is inserted through the screw insertion holes 6 of the mounting base 6.
1 to the screw receiving boss 11 of the main body housing 1
The motor base 5 and the mount 6 connected thereto are fixed to the main body housing 1 and simultaneously fixed to the upper surface of the mount 6 by the mounting screws 90 shown in FIG. In other words, the motor base 5, the mounting base 6, and the motor 9, driver 10, and other parts attached thereto are assembled as one block, and then attached to the main body housing 1. Furthermore, when the motor base 5 is attached to the main body housing 1, the horizontal rib 54 at the lower part inserted into the main body housing 1 is pressed against the stepped portion 19 on the inner surface of the main body housing 1, as shown in FIG. Securely fixed. Also, the skirt portion 65 at the bottom of the mounting base 6
is fitted into the upper part of the main body housing 1, and the fitting portion is waterproofed by the packing 36. Motor 9 and dry battery 96 inside main body housing 1
The upper opening is the gasket 35 and gasket 36, the front window 15 is the switch gasket 38, and the lower opening is the battery cover 3.
and an O-ring 37, respectively. Note that the slider 71 and slide lever 20 are located outside this closed space.

Now, as shown in FIG. 4, the blade frame 2 has a recess 25 formed in its front surface and opens upward toward the back, and has a plurality of locking protrusions on the front and rear inner walls. 28 is provided protrudingly, and the recess 25
An opening 26 is formed in the lower center of the inclined front wall, which also serves as the bottom surface of the front wall. The mesh-like bendable outer blade 21 arranged on the upper surface of the blade frame 2 has locking holes 211 formed at both ends to which the reinforcing plates 210 are attached, and the locking protrusions 28
It is attached to the blade frame 2 by being locked to. As shown in FIGS. 5 and 6, the inner cutter block 22, which has a large number of inner cutter blades arranged in parallel on its top surface and comes into sliding contact with the inner surface of the outer cutter 21, is located above the cylindrical shaft 102 of the drive element 10. It is attached so that it can freely tilt to the left and right about a shaft 24, and is urged upward by a push-up spring 23. As shown in FIGS. 4 and 5, the main body housing 1 and the blade frame 2 are connected by a shaft 84 attached to the inner surface of one side of the blade frame 2, a hinge piece 83 through which the shaft 84 is inserted into the upper end, and This is achieved by a locking spring 82 disposed in the space between the main body housing 1 and the recess 68 in the mounting base 6 and removably locking the hinge piece 83, and by a hook 87 in the opening/closing button 86 mentioned above. and
A torsion coil spring 85 attached to the shaft 84
4 and is biased in the direction of opening.
When the opening/closing button 86 is pushed in, the hook 87 is disengaged from the blade frame 2 and the blade frame 2 is opened under the force of the torsion coil spring 85. Furthermore, by removing the hinge piece 83 from the stopper spring 82, the blade frame 2 can be removed from the main body housing 1.

Next, the trimmer block 4 disposed in the recess 25 on the front surface of the blade frame 2 and the drive mechanism for the movable blade 40 in this trimmer block 4 will be explained.
First, the trimmer block 4 consists of a movable blade 40, which has a comb-shaped cutting edge on its front edge, as shown in FIG. 4, and a fixed blade 40, which also has a comb-shaped cutting edge on its front edge. The blade 41 and the movable blade 40 are made up of a presser spring 42 that presses them against the upper surface of the fixed blade 41, a substrate 43 that attaches them to the lower surface thereof, and a mounting substrate 44 that has the above members arranged on the upper surface. The mounting board 44 consists of a front plate with a slightly concave front and an upper plate extending rearward from the top of the front plate, and mounting hooks 4 are attached to the rear from both ends.
42 is extended, a protrusion 444 projects from the lower surface, and an escape hole 440 is formed at the center of the upper surface to vertically penetrate the upper plate. and board 4
A pair of connecting hooks 43 hanging from both ends of 3
1 is engaged with each connecting groove 443 provided on the upper end surface of the mounting board 44, and the tips of the two guide bosses 432 hanging down from the board 43 are pressed through the spring 42, the movable blade 40, and the fixed blade 41. By connecting the board 43 and the mounting board 44 by inserting them into the top surface of the mounting board 44, these movable blades 40, fixed blades 41, and presser springs 42 are connected to the board 43.
It is assembled between the lower surface and the upper surface of the mounting board 44, and at this time, the movable blade 40, which has an engaging seat 45 that opens downward and is fixed to the lower surface by heat caulking, engages its guide hole 401. guide boss 4
32 guides the reciprocating movement in the left and right direction,
Further, the engagement seat 45 is located through the through hole 410 at the center of the fixed blade 41 and into the escape hole 440 at the center of the upper surface of the mounting board 44. The presser spring 42 is held with its rear end held between a protrusion 441 protruding from the rear end of the upper surface of the mounting board 44 and the lower surface of the board 43. Trimmer block 4 made into blocks as described above
To attach it to the blade frame 2, insert the above-mentioned protrusion 444 on the lower surface of the mounting board 44 into the front recess 2 of the blade frame 2.
This is done by inserting the trimmer block 4 into the groove 29 formed on the lower surface of the trimmer block 5 and locking the mounting hooks 442 in the locking recesses 27 on both sides of the recess 25. The trimmer block 4 can be easily removed from the trimmer block 4. The movable blade 40 and fixed blade 41 in the trimmer block 4 attached in this way are connected to the curved outer blade 2
It is placed close to the upper end of the blade and its cutting edge is directed forward and diagonally downward. By determining the direction of the blade edge in this way, the thickness of the front and rear of the trimmer block 4 can be reduced, and the thickness of the front and rear of the blade frame 2 including the trimmer block 4 can be thinned, making it easier to shave hair in concave areas such as the armpits. It is something that exists.

The drive mechanism for reciprocating the movable blade 40 of the trimmer block 4 includes a driver 10 that converts the rotational motion into reciprocating motion, a joint 49 attached to the driver 10, and a mounting board 4 of the trimmer block 4.
The trimmer drive element 46 is attached to the back of the trimmer 4. As shown in FIGS. 6 to 8, the trimmer is disposed on the back surface of the mounting board 44, with its center portion in the vertical direction pivoted by a shaft 445 that projects rearward from the center of the back surface of the mounting board 44. Drive element 4
6 has a spherical protrusion 47 at its upper end that engages with the engagement seat 45, and a downwardly opening at its lower end, and when the trimmer block 4 is attached to the blade frame 2, the trimmer block 4 is attached to the blade frame 2, as is clear from FIG. A receiving groove 48 located at a position facing the opening 26 at the bottom of the front recess 25
The movement of the drive element 10 is controlled by the joint 4.
The movable blade 4 is rotated by being received via the
1 to reciprocate. Now, as for the joint 49, as shown in FIGS.
It is attached to the drive element 10 so as to be able to rotate up and down by fitting the shaft hole 490 in the blade frame 2 at the front end.
6 and a shaft portion 491 that can be freely engaged with the receiving groove 48 of the trimmer driver 46 in the notch 212 at one end of the outer cutter 21, and each shaft portion 491 has elasticity and extends rearward from the shaft hole 490. Projection 49 on the inner surface of the side piece
2, and as the joint 49 rotates as shown in FIG.
At a position slightly below the rear of 02, it passes over a pair of protrusions 106 that protrude to both sides, and provides a click to the rotation of the joint 49.

The vertical rotation of the joint 49 about the left-right direction is performed in conjunction with the switch operation by the switch handle 7. Switch handle 7 and fitting 4
The aforementioned slider 71 and slide lever 20 are used to link the slider 9 with the slider 71 and the slide lever 20. A slide lever 20 is disposed in a concave surface 64 on the front surface of the mounting base 6 so as to be able to move up and down, and whose upper end projects onto the upper surface of the mounting base 6 through a through-hole 63. As shown in FIG.
An engagement window 201 penetrating back and forth is formed in the upper part which is slightly bent backwards, and an opening 202 which also penetrates back and forth is formed in the lower part, and as shown in FIG. The joint 4 is biased downwardly by a return spring 205 whose lower end is brought into contact with the lower edge of the opening 202 on the lower surface of the flange 69 of the mounting base 6.
The shaft portion 491 of No. 9 is inserted therethrough. Here, the vertical opening dimensions of the engagement window 201 are sufficiently larger than the outer diameter of the shaft portion 491, so that a non-contact state between the shaft portion 491 and the inner surface of the engagement window 201 can be obtained. There is.

When the switch handle 7 is moved upward, the slide lever 20 is also moved upward via the slider 71, and the slide lever 20 is moved upward to the shaft portion 491 of the joint 49.
Since the joint 49 is rotated until the shaft portion 491 engages with the receiving groove 48 of the trimmer drive element 46, the movement of the drive element 10 can be transmitted to the movable blade 40 of the trimmer block 4. However, as mentioned above, among the three clicks given to the vertical movement of the switch handle 7, at the lowest position there is a click between the upper end of the slider 71 and the lower end of the slide lever 20. 6 There is a gap as shown in Figure 6, and the switch handle 7
Push up the contact spring 9 to the middle position and use the pin 72 to release the contact spring 9.
Even in the state shown in FIG. 7 in which the motor 9 is energized by short-circuiting the current-carrying metal fitting 92 and the cathode metal fitting 93 with the contact spring 91 by bending the slide lever 20
The joint 4 is not pushed up by the slider 71 but is lowered by the force of the return spring 205, and the inner cutter block 22 is reciprocated by receiving the rotation of the motor 9 via the driver 10.
9 is not engaged with the trimmer drive element 46, the movable blade 40 of the trimmer block 4 is not driven. However, if the switch handle 7 is pushed up to the highest level, the motor 9 continues to be energized as shown in FIG. Slide lever 2
Since the joint 49, which has the shaft portion 491 inserted through the engagement window 201 of 0, is rotated and the shaft portion 491 is engaged with the receiving groove 48 of the trimmer driver 46, the operation of the driver 10 causes the joint 46 to rotate. is applied to the trimmer drive element 46 through the
The movable blade 40 is reciprocated by the swinging of the trimmer driver 46 which is engaged with the engagement seat 45 which is fixed at zero. Further, when the joint 49 is rotated in this manner, the protrusion 492 of the joint 49 climbs over the protrusion 106 of the driver 10 and finally the joint 46 moves itself to the engagement position with the trimmer driver 46. try to For this reason, the joint 49 self-maintains the engaged state with the trimmer driver 46 when its shaft portion 491 is engaged with the trimmer driver 46, and the slide lever 20 allows the joint 49 and the trimmer driver 46 to be engaged with each other. 49, that is, the inner surface of the engagement window 201 and the shaft portion 491 of the joint 49 may be kept in a non-contact state. Therefore, when the movable blade 40 is being driven from the drive element 10 via the joint 49 and the trimmer drive element 46, the shaft portion 491 of the joint 49 is moved within the engagement window 201 of the slide lever 20, as shown in FIG. The slide lever 20 is in a floating state so that the slide lever 20 does not provide any resistance to the power transmission operation of the joint 49.

When the switch handle 7 is pulled down, the slide lever 20 is moved downward by the force of the return spring 205, and the joint 49 is rotated in the direction of lowering the shaft portion 491, so that the joint 49 and the trimmer driver 46 are The engagement is released and the state shown in FIG. 7 or 6 is restored.

[Effects of the Invention] As described above, in the present invention, the trimmer drive element is pivotally supported by the shaft on the back of the mounting board on which the trimmer blade section is provided on the upper part, and the upper end is connected to the movable blade in the trimmer blade section. Since the lower end of the trimmer drive element can be freely connected to the drive element through the opening formed in the outer wall of the blade frame, the trimmer blade part can be placed close to the outer cutter, and the trimmer blade part The trimmer blade section and the mounting board are independent from the switch operation member. Nevertheless, due to the disconnection of the drive element and trimmer drive element by the slide lever interlocked with the switch operation member, there is a state in which only the main blade section is operated by operation of the switch operation member, and a state in which only the main blade section is operated. In addition, it is possible to switch between the states in which the trimmer blade operates, and in particular, the slide lever is pressed by movement in a specific range during the entire stroke of the switch operating member, connects the two drivers, and returns. Since it is designed to return and disconnect using the bias of a spring, only a small amount of operating space is required to operate the slide lever, and the main action during shaving is to operate only the main blade. At this time, there is no need to move the slide lever, so a good operating feel is achieved.

[Brief explanation of the drawing]

Figure 1 is a perspective view of one embodiment of the present invention, Figures 2 to 4 are exploded perspective views of the same, Figure 5 is a cross-sectional view of the same, and Figures 6 to 8 are the same as the above. 9 is a perspective view showing the inner surface of the blade frame, in which 1 is the main body housing, 2 is the blade frame, 4 is the trimmer block, 10 is the driver, 21 is the outer cutter, and 22 is the Inner blade, 26 is opening, 40
44 is a movable blade, 44 is a mounting board, 46 is a trimmer driver, and 445 is a shaft.

Claims (1)

[Scope of Claims] 1. An electric shaver in which an outer cutter in a main cutter section consisting of an outer cutter and an inner cutter that slides on the inner surface of the outer cutter, and a trimmer cutter section are mounted on the upper part of a blade frame,
The trimmer blade part is arranged on the upper part of the mounting board arranged along the outer surface of the blade frame, and the upper end is connected to the movable blade in the trimmer blade part, and the lower end is connected to the drive element for driving the inner blade of the blade frame. The trimmer drive element, which can be connected freely through an opening formed in the outer wall of the main body, is pivoted on a shaft on the back of the mounting board, and the contact drive part is attached to the main body housing, on which the blade frame is attached. A switch operating member for controlling the connection between the drive element for driving the inner cutter and the trimmer drive element via a slide lever is slidably disposed. The slide lever is pushed in a specific range of movement during the entire stroke of the switch operating member to connect the driver and trimmer driver, and is returned by the force of a return spring to connect the driver and trimmer driver. An electric shaver characterized in that it is a device that releases connections. 2. The electric shaver according to claim 1, wherein the trimmer blade has a cutting edge directed diagonally downward. 3. The electric shaver according to claim 1, wherein the mounting board is detachable from the blade frame.