JPS60165982A - Electric razor - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to an electric shaver, in particular, a main part consisting of an outer cutter and an inner cutter that slides on the inner surface of the outer cutter, a comb-shaped fixed blade, and a comb-shaped fixed blade that slides on the fixed blade. This invention relates to an electric shaver that has two blade parts, a trimmer blade part and a comb-shaped moving blade in contact with each other.

[Background Art 1] In providing two blade sections in this way, the trimmer blade section is placed adjacent to the main force section so that the trimmer blade section performs a rough shave and the main force section performs a finishing shave. Is there something set up? Fig. 73 shows a conventional example of an electric shaver constructed in this way. In the figure, reference numeral 21 denotes a mesh-like outer cutter, and on the inner surface thereof there are seven inner cutters that are reciprocally driven. The inner cutter block slides into contact. The trimmer blade part has an outer blade 21 attached to the blade frame 2 on two sides.
The mounting board 44 is attached to the front of the mounting board 4.
4, a fixed blade 41, a movable blade 40, and a presser spring 42 disposed between the two. The engagement seat 45 is connected to the trimmer drive rod 26 and is driven back and forth by input from the trimmer drive rod 26.

In this product, the movable blade 40, which has a thinner blade than the fixed blade 41, is placed on the desk side, so that hair can be cut shorter than when the fixed blade 41 is placed on the desk side. However, this arrangement has the following problems.

That is, the movable blade 40 and the substrate 43 located above the movable blade 40
There needs to be a gap between them to allow the movable force 40 to reciprocate. Therefore, the cut hair will get into this gap. Further, it is necessary to form a rear wall 434 behind the movable blade 41 to prevent hair from flowing toward the outer blade 21. In other words, the area behind the gap is a closed space. For this purpose, the movable blade 4
Since there is no outlet for the hair to enter between the 0 and the substrate 43, it accumulates deep in the gap, and even if washed with water, the hair cannot be removed, and as the amount of hair increases, the movable blade There was a problem in that the 40 did not move due to hair.

[Object of the Invention] The present invention has been made in view of the above points, and its purpose is to provide an electric power that can easily remove the hair that has entered the gap between the movable force and the substrate. To provide a razor [Disclosure of the Invention] The present invention provides a fixed blade with a comb-like leading edge, and a movable blade with a comb-like leading edge that is driven in sliding contact with the fixed force. A trimmer block is arranged between the blade and the holding spring that presses the movable blade with a fixed force = 1. In an electric shaver in which a trimmer block is arranged and a mounting board is connected to the outer wall surface of a sword frame in which an inner cutter that is reciprocally driven and slides into contact with the inner surface of an outer cutter is disposed, a trimmer block is disposed after a fixed cutter and a movable cutter. A space is formed between the edge and the rear wall located at the boundary between the outer cutter of the board, and a discharge port communicating with the space is formed on the upper surface of the take-out τ1 board to which the board is attached. The blade frame is characterized by an opening that communicates between the discharge port and the space inside the blade frame that serves as a hair waste collection. A path for removing hair is formed leading to the inside of the blade frame to which the blade is attached, and hair is removed through this path during washing.

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 electric shaver that is waterproofed, and its appearance consists of a main body housing 1, a battery cover 3 that fits in the lower part of the main body housing 1, and a main body. Take part 2 of Housing 1.
A switch handle 7 is arranged in a concave portion provided on the front surface of the main body housing 1 so as to be slidable up and down. Both the main body housing 1 except for the upper part where the width is wide and the battery cover 3 have vertically continuous outer surfaces and both have an elliptical horizontal section, and the main body housing 1
The blade 7 frame 2 has an outer surface shape that is continuous in two parts.
A thin metal outer blade 2I is attached to the top surface, and a trimmer block 4 is attached to the upper front surface of the blade frame 2.
is installed.

The main body housing 1 is a cylindrical synthetic resin molded product that opens up and down. Screw receiving bosses are provided at each of the four corners of the wide upper inner surface, and a screw receiving boss is provided at each of the four corners of the wide upper inner surface. A recess 12 is formed, and the lower portion is a slightly narrowed cylindrical portion 18. The upper end of the recess 12 opens upward apart from the internal space passing through the center of the main body housing 1, and vertical ribs (not shown) are provided on both left and right sides, respectively.
A window 15 surrounded by double rectangular ribs 14 is opened at the lower center.

A contact spring 91, which is formed in a trident 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 also has a double rectangular shape. The window 15 is closed by a switch gasket 38 that is locally attached between the ribs 14. The switch handle 7, which has a non-slip surface, can be attached to the main body housing 1 via the handle board 70,
The handle board 70, which has an arcuate horizontal cross section, has a recess 1 in the main body housing 1 by locking locking protrusions protruding from the top and bottom of the inner surface of both ends of the handle board 70 onto the outer surface of each of the vertical ribs.
The switch handle 7, which is fixed so as to cover the front surface of the switch 2 and has an arc-shaped horizontal section, is slidable up and down with respect to the handle base plate 7o. In the space surrounded by both vertical ribs and the rectangular rib 14 in the closed recess 12, there is provided a space in which the recess 12 is slidable downward and into the upper part of the main body housing 1 through the upper end opening of the recess 12. A slider 71 whose upper end protrudes is arranged, and a pin (not shown) of the switch handle b7 is connected to the slider 71 through a vertical hole provided in the handle base plate 70. Along with the switch handle 7, the slider 71 is also connected. The slider 71 moves up and down, and at this time, the elastic click protrusions at the lower ends of both sides of the slider 71 go over the upper and lower click protrusions provided at the lower part of the inner surface of the vertical member 7. The switch handle 7 is positioned in three stages relative to its vertical movement.A vertically elongated hole 74 provided at the center of the handle base plate 70 is used for inserting a pin 72 protruding from the center of the inner surface of the switch handle 70. As the switch handle 7 is moved upward, this pin 72 is brought into contact by pressing the central piece of the contact spring 91 mentioned in 11i, which is bent so that the two parts protrude toward the capacity, through the switch seal 38. Both side contact pieces of the spring 91 are deflected rearward.

The battery cover 3 is a simple right-hand bottom with only the top open.
A long vertical length 731 is integrally provided on the inner surface of the rear wall. The protrusion at the center of the connecting spring 81 that has been locked and accommodated is connected to the main body housing 1 by engaging with the notch 32 in the vertical length 731 as shown in FIG. The main body housing 1 is connected by an O-link 37 fitted to the upper end.
Waterproof treatment is performed at the connection portion between the battery cover 3 and the battery cover 3. Two dry batteries 96 as power sources are installed in the main body housing 1.
The double-rotating batteries 96, which are arranged parallel to each other, are connected in series by a current-carrying pin h95 arranged on the bottom surface of the battery cover 3.

The motor 9 is not directly disposed inside the main housing 1, but is installed in the upper part of the main housing 1 as a drive block that is constructed with a motor base 5, a mounting base 6 connected to the motor base 5, a driver 10, etc. stored inside. The motor base 5, which is a synthetic resin molded product, has an internal space from the center to the bottom where the motor 9 is housed through an opening on the back. is located in the second part of the motor base 5.

The collection stand 6 is also a synthetic resin molded product, and has a cylindrical shape with the top surface closed except for the central round hole and the bottom surface open.
In addition, screw insertion holes are provided at the four corners of the top surface, which pass through the round hole and the bottom opening separately from the internal space, and open at the bottom surface of the flange 69. A concave portion surrounded by surrounding ribs 67 is formed on the lower side, and a slightly narrowed skirt portion 65 is provided at the lower portion. The concave portion is a space in which a slide lever 20, which will be described later, is disposed, and is open in one direction, separate from the internal space. On one side of the upper part, there is a hook 41ii that engages with the inner surface of the blade frame 2, and a hook 41ii that engages with the inner surface of the blade frame 2 is provided.

The motor base 5 and the handle 6 are constructed by placing the base 6 over the top of the motor base 5 in some cases, and engaging the skirt portion 65 of the motor base 5 with the base 6. It is connected by connecting the upper part of the motor base 5 (= 1 unit G
This is where the driver 10 is placed. This driver 10 has a front shape of itU.
A plate spring 101 is provided from both sides of the main body 100 in the shape of a letter, and a joint shaft 102 with two ends open is provided from the center. An arm 104 is provided protruding from the inner surface, and the composite (h(
It is constructed as a molded product of fat 1), and although the root spring 101 easily bends in the left and right direction, it does not bend after 1iij; ing. The driver 10 is positioned so that the fixing pieces 1031 at the upper end of each leaf spring 101 are connected to the upper left and right ends of the motor base 5. It is fixed in a suspended state by being held between the upper and lower sides by the drive element 10 and the mounting base 6. is carried out in arm 104. Arm 104
has an E-shape in plan view, the front and rear side pieces are connected to the side pieces of the main body 100, and the eccentric shaft 99 is connected to the tip of the center piece. The drive element 10 that has undergone the revolution movement of the eccentric shaft 99 performs a reciprocating movement in the left and right direction due to the above-mentioned deflection characteristics.

The drive element 10, which has been removed in this way, is
The cylinder shaft 102 is inserted through the round hole on the top surface of the stand 6 (= 1 is made to protrude upwards from the stand 6. The space between the cylinder sleeve 102 and the round hole has an inner peripheral part touching the base of the cylinder sleeve 102, and The outer periphery is connected to the round hole i3 on the top surface of the mounting base 6 by the pressing plate 34.
Press down to 1% and close with Guia 7 Ram-shaped Pankin 3S. The presser plate 34 is inserted into its four corners and is attached to the motor base 5 and the motor base 5 by a hole (not shown in the drawings) that is originally screwed into the housing 1 through the four corners of the presser plate 34. At the same time as the connected mounting base 6 is fixed to the main body housing 1, it is fixed to the upper surface of the motor base 5, the mounting base 6, and the mounting base 6. Parts such as the motor 9 and driver 10 are
After being assembled as one block, it is attached to the main housing (1) (=1). Also, when installing it to the main body housing 1, the skirt part 65 at the bottom of the mounting base 6 is inserted into the upper part of the main body housing 1. This fitting part is waterproofed by the packing 36.

The space for installing electric components such as the motor 9 and the dry cell battery 96 within the main unit housing 1 should be spaced between 1'' and the gasket 35 above.
The front window 15 is closed and sealed by the switch punch 38, the lower opening of the battery cover 3, and the Q ring 37, respectively. Note that the slider 71 and slide lever 20 are located outside this closed space.

Now, the blade frame 2 has a recess 25 formed on its front surface and opens upward near the back, and a plurality of protrusions 28 are missing from the front and rear inner walls, forming the recess. The inclined wall 11j, which also serves as the bottom surface of the space 25, has an opening 1'' 26 penetrating therethrough at the lower center thereof, and openings 260 penetrating therethrough at the lower portions of both sides. The mesh-like bendable outer blade 21 arranged on the upper surface of the sword frame 2 has a reinforcing plate 210 (1) (=1) and a locking hole (211) formed at both ends thereof. The inner cutter flock 22 is fixed to the blade frame 2 by being locked to the outer cutter 28.The inner cutter flock 22 is provided with a large number of inner cutter blades arranged in parallel on the upper surface, which are in sliding contact with the inner surface of the outer cutter 21. The cylinder shaft 10'2 of 10 is attached so that it can freely move left and right around the shaft 24. I,
I'm in a lot of trouble. The connection between the main housing l and the sword frame 2 is achieved by a shaft 84 installed on the inner surface of one side of the blade frame 2 and a hinge piece 83 through which the shaft 84 is inserted into the upper end.
and by a retaining spring 82 disposed in the space between the main body housing 1 and the inside of one side of the unit 6 and removably locking the hinge bar 83, and by a hook in the above-mentioned opening/closing button 86. 'ζ, and it is taken on axis S4 (-
A one-digit torsion coil spring 85 rotates around the shaft 84 and is biased 1:1 in the opening direction. When the opening/closing button S6 is pushed in, the blade frame 2 is opened by the forces of I and J caused by the torsion coil spring 85 as the 7th blade is separated from the blade frame 2. Also, by removing the hinge piece 83 from the stop spring 82,
The sword frame 2 can also be removed from the main body housing 1.

Next, the trimmer flock 4 disposed in the recess 25 on the front surface of the blade frame 2 and the mechanism for driving the movable blade 40 in the trimmer flock 4 will be explained. First, let me explain about the trimmer block 4. 1. The front and rear edges of the trimmer block 4 are bent downward, and the front edge is provided with a 1h chevron-shaped tip on both sides.
1-A movable force 40 with a guide hole 401 penetrating downward, and a 111j edge and a trailing edge force with a comb-shaped cutting edge bent at the front edge and a through hole in the center. 410 is a fixing force 41 provided with through holes 41N at both ends, a presser spring 42 that presses the movable blade 40 onto the upper surface of the fixed blade 41, a substrate 43 that accommodates these on its lower surface, and the above. The shrine is arranged on two sides (1 board 4
It is composed of 4. Board 4: (=1 The board 44 has a slightly concave hanging piece on the 1111 side and extends rearward from the top of the hanging piece.)
It consists of two parts, with several hooks 442 extending backward from both ends, and a protrusion 44 extending from the lower surface of the pendant.
4 protrudes, and furthermore, there is an escape hole 440 that passes through the two pieces vertically on both sides of the top surface, and an outlet 447 that passes through the two pieces vertically on both sides of the top surface. 443 are formed respectively. And the board 43
7 connectors 431 hanging down from both sides of the base plate 44.] At the same time, the two guide posts 432 hanging down from the base plate 43 are engaged with the respective connecting grooves 443 on the upper side ends of the base plate 44. By pressing the tips of the springs 42 and ■) through the moving blade 40 and the fixing force 41, inserting them into the upper surface of the board 44 and connecting the board 43 and the mounting board 44. and the pressing spring 42 is connected to the substrate 4.
3 lower surface and the two surfaces of the housing f=1 board 44. At this time, an engaging piece 45 that opens downward on the lower surface is assembled.
The ijJ power 40, which is heat-tightly fixed, is guided in reciprocating movement in the left and right direction by the guide boss 4;)2 which extends in the left direction and engages the guide hole 401. The mating piece 45 passes through the through hole 410 at the center of the fixing force 41 and is located in the escape hole 440 at the center of the upper surface of the storage base 14. Further, the fixed blade 41 is positioned by fitting into the guide boss 432 and is fixed by pushing in the vicinity of the guide boss 432. Further, the presser spring 42 has a positioning projection 434 hanging down from the rear lower surface of the board 43.
It is positioned by being fitted into the positioning hole 421 at the center of the rear part, and by abutting the protrusion 433 protruding from the bottom surface of the board 43 or the 1ii71k at both left and right ends.
Further, the rear end portion is held between several protrusions 441 protruding from the rear end of the upper surface of the substrate 44 and the lower surface of the substrate 43.

1 remark 70 links 4 flocked as above
To fit the blade into the blade frame 2, attach the protrusion 444 on the lower surface of the board 44 to the 111j and four points 25 of the sword frame 2.
into the groove 29 formed on the bottom surface of the
'7 This is done by locking the yoke 442 in the locking recesses 27 on both sides of the recess 25, and the trimmer 70
The trimmer 70 and the ink 4 can be easily removed from the sword frame 2 for cleaning.

The movable blade 40 and the fixed blade 41 in the 1-rimmer block 4 thus obtained are the curved outer blade 21.
It is placed close to the upper end of the blade, and its cutting edge is directed forward and diagonally downward. Due to this redundancy in the direction of the cutting edge, the thickness at the front and rear of the 1 trimmer 70 ink 4 becomes thinner, and the thickness at the front and rear of the blade frame 2 including the trimmer flock 4 becomes thinner. Also +ii of W plate 43
The j edge is inclined 1f11, and the movable force 40 that contacts the fixed blade 41's - face with the spring pressure of the presser spring 42, the cutting edge of the liiij edge and the front edge of the base plate 43 are aligned in a straight line. AI- is being controlled.

A drive for reciprocating the movable blade 40 of the trimmer 70 and ink 4 (
fi Ji'tj is a driver 10 that converts the rotational motion into reciprocating motion, and a joint 4 attached to this driver 10.
It consists of a trimmer drive rod 46 that fits into the back of the hanging piece of the board 44 (9 rows, 1 piece, 70 pieces). The trimmer drive rod 46 disposed on the hanging side of the collection board 44 is engaged with the upper end 111 by being supported by the protruding shaft 445 at its center in the downward direction. A spherical protrusion 47 that engages with the seat 45 is opened in the 1ζ direction at the lower end, and a receiver that is positioned facing the opening 26 at the bottom of the il section 1125 of the blade frame 2 when the trimmer block 4 is attached to the sword frame 2. It has a groove 48,
The movable blade 41 is caused to reciprocate by swinging while receiving the movement of the driver 10 through the joint 49. The joint 49 is attached to the drive element 10 so that it can freely rotate downward by fitting the shaft hole 490 into the shaft 105 protruding from both sides of the cylindrical shaft 102 of the drive element 10. 1iij 4i has a shaft portion 491 that can be freely engaged with the trimmer drive 4 [46 receiver? A protrusion 492 (
;iii, as the joint 49 rotates, this protrusion 492 rides over the pair of protrusions 106 that protrude on both sides at a position slightly below the rear of the cylindrical shaft "102" of the driver 10, and the joint 49 It is designed to give a click to the rotation.

The vertical rotation of the joint 49 about the left-right direction is performed in conjunction with the operation of the switch by the switch handle 7. It is the aforementioned slider 71 and slide lever 20 that interlock the switch handle 7 and the joint 49. Take 1
A slide lever 20, which is disposed on the front surface of the scale table 6 so as to be movable up and down and whose upper end projects onto the upper surface of the mounting table 6, is pushed up by a slider 71 that moves upward in accordance with the upward movement of the switch handle 7. An engagement window 201 that penetrates back and forth is formed in the upper part that is slightly bent to the rear, and an opening 202 that also penetrates back and forth is formed in the lower part. The joint 49 is pressed 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 seventh rung 69 of the mounting base 6. A shaft portion 491 is inserted therethrough.

When the switch handle 7 is moved upward, the slide lever 20 also moves by one movement via the slider 71, and the slide lever 20 pushes the shaft portion 491 of the joint 49 and moves into the receiving groove 48 of the trimmer drive rod 46. Since the joint 49 is rotated until the shaft portion 491 is engaged, the movement of the driver 10 can be transmitted to the movable force 40 of the trimmer block 4. At this point, as described above, the switch handle 7 Of the three clicks, which resulted in +7 for the second downward movement, there is a gap between the upper end of the slider 71 and the lower end of the slide lever 20 at the lowest position, and the switch handle 7 The slide lever 20 can be pushed up by the slider 71 even when the motor 9 is energized by pushing it up to the middle stage and bending the contact spring 9 by the pin 72 to close the circuit between the motor 9 and the dry cell battery 96. Although the inner cutter block 22 is reciprocated by receiving the rotation of the motor 9 via the driver 10, the joint 49 is not engaged with the trimmer drive rod 46. Since there is no trimmer block 4, the movable blade 40 of the trimmer block 4 is not driven.

However, as shown in Figure 2, if you push the switch handle 7 all the way up with the two-stage main, then the motor will start! 3 continues to be energized, the slider 71 moves integrally with the switch handle 7, pushes the slide lever 20, and inserts the shaft portion 491 into the engagement window 201 of the slide lever 20. 49 to engage the shaft portion 491 with the receiving groove 48 of the trimmer drive rod 46, the movement of the driver 10 is applied to the trimmer drive rod 46 via the joint 49, and the spherical protrusion 47 is 'The trimmer drive rod 46 is engaged with the engagement seat 45 fixed to the moving blade 40
The movable blade 40 is reciprocated by the swinging motion. Also, when the joint 49 is rotated in this way, the protrusion 4 of the joint 49
92 and the protrusion 106 of the driver 10, and finally the joint 46 attempts to move itself to the engagement position with the trimmer drive rod 46. For this reason, when the shaft portion 491 of the joint 49 is engaged with the trimmer drive rod 46, the joint 49 is engaged with the trimmer drive rod 46! It is a self-preservation of antiquity.

Trimmer block 1 in which the movable blade 40 is driven
When shaving, the fixing force is 41 mm, and the
Since it is located above m;Mi42Fr'A-y嬶>4+t-7f&Q, the cutting edge of the movable force 40 is in close contact with the skin without being obstructed by the JJ plate 43, and it is possible to shave the hair short. When shaving with the outer cutter 21 and the inner cutter of the inner cutter 22, the length can be made so that it can be guided into the small introduction hole of the external force 21, and there is no unshaved part. can be eliminated.

Hair that has entered the interior of the trimmer block 4 through the gap between the movable blade 40 and the base plate 43 is sent rearward through the space between the bottom surface of the base plate 43 and the top surface of the movable blade 40, and is collected there. However, the rear edges of the movable force 40 and the fixed force 41 are connected to the substrate 43 located behind them.
A space]\ is created between the rear wall 436 and the through hole 411 of the fixing force 41 and the aforementioned connection fτ1, as is clear from FIGS. 6 and 7. It communicates with the lower space B of the upper part of the board 44 through the outlet D 447 provided on the board 44, and only through the outlet 447, and further communicates with the space B below the upper part of the board 44, and further through the recess 2 in the front of the sword frame 2.
It communicates with the space C as a hair waste collection above the pankin 35 described in 111j through the opening [: 1260 at 5]. Therefore, when washing hair with water, if a water flow is guided into the trimmer block 4 from the protruding portions of the movable blade 40 and fixed blade 41, the hair collected in the space A will be removed from the discharge port 447 along with the water flow. The hair that has reached this space C passes through space B through the opening 260 of the blade frame 2 and is discharged into space C as a hair waste collection. By opening it to 1, it ends with water washing and removal.

When the Suinona handle 7 is pulled down, the slide lever 2
0 moves downward by the force of the return spring 205 and rotates the joint 49 in the direction of lowering the shaft portion 491.
The engagement between the joint 49 and the trimmer drive rod 46 is released, and the original state is restored.

1 Effects of the Invention 1 As described in 2 below, the present invention has a passageway for discharging hair that has entered the interior through the gap between the movable blade and the substrate into the blade frame. The hair can be easily discharged through this passage when washing with water, so that it can be kept clean and the movable blade will not malfunction due to accumulated hair. .

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a vertical sectional view of the same, Figs. 3 and 4 are exploded perspective views of the same, Fig. 5 is an X in Fig. -X-line sectional view, Figure (') is a cross-sectional view of the same as above, Figure 7 is a )'-Y-line sectional view in Figure 3, and Figure 8 is a longitudinal sectional view of the conventional example. is Kimoto Housing, 2
4 is a ring frame, 4 is a trimmer block, 40 is a movable blade, 43 is a substrate, 44 is a number of substrates, 260 is an opening, 447
46 is a trimmer drive rod, and 445 is a shaft. Agent Patent Attorney Ishi 1) Ai Hi Figure 7 Figure 8 Shi? 1

Claims (1)

[Claims] (1) A fixed blade with a comb-shaped front edge, a movable blade with a comb-shaped front edge that slides against the fixed blade, and a presser spring that presses the movable blade against the fixed blade. A trimmer flock is arranged between several boards and the board connected to this take-out τ1 board (1iii) and an inner cutter is arranged which is driven reciprocally with the net-shaped outer cutter and slides into contact with the inner surface of the outer cutter. In the electric shaver in which the trimmer flock is arranged by connecting the trimmer flock to the outer wall surface of the installed blade frame, the boundary between the fixed blade and the trailing edge of the movable force and the outer cutter in the board as described in 112. In addition to forming a space between the rear wall located in the blade frame, an outlet communicating with the space is formed on the upper surface of the board in which the board is accommodated, and this outlet is connected to the inside of the blade frame. An electric razor characterized in that the sword frame is provided with an opening that communicates with a space serving as a hair waste collection (1).