JPS58209372A - Reciprocal type electric shaver - 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 The present invention relates to a reciprocating electric shaver, and more particularly to the structure of a driver that converts the rotational motion of Tanabata into reciprocating motion of the entire inner cutter block.

Generally, in this type of double-acting electric shaver with biased drive element, it is necessary to press the blade surface of the inner cutter block against the outer cutter of the outer cutter block. A connecting cylinder (31) is formed on the top to accommodate a spring 48), and a bushing 46) protruding from the lower surface of the inner cutter block (3) is housed in all the connecting cylinders 1), and the bushing 461 is pressed against the spring 481 to connect the inner blade. The blade block (3) is brought into pressure contact with the outer blade (2b) of the outer blade block (2). However, as shown in the figure, in the driver (30+) used in the conventional reciprocating electric shaver, the connecting tube (31) protrudes from the base plate (the connecting tube (31) supports the spring 1481).
Since the bottom of the board (31) is attached to the top of the board (34), a large dimension (L2:1) is required between the inner cutter block (31) and the drive element (shaft board 3z), which increases the height of the electric shaver. The 7t0 non-invention was made in view of the above points, and the main purpose is to reduce the entire blade surface of the inner blade block. Outer cutter lock Although the specified push-up spring that presses against the outer cutter circular surface is housed in the connecting cylinder on the ton mover, the required dimension between the inner cutter block and the drive element can be set short, and the overall height can be reduced. An object of the present invention is to provide a reciprocating electric shaver that can be miniaturized throughout Europe.

The present invention will be described in detail below based on embodiments shown in the figures. The reciprocating electric shaver according to the present invention has a blade holder on the top surface;
'i inside the shadow formation ℃-ta (8)? Outer blade lock (2) placed on the housing (if and blade holder 40)
) and an inner cutter block (3) that is reciprocated on the upper surface of the cutter holder 4a and slides into contact with the inner surface of the outer cutter (2b) of the outer cutter lock (2).
), inner blade block (3) and t-t8) (!: '
z connects and rotates part (8), k inner blade lock (
3) The drive element (with a brush) that converts the reciprocating motion is formed into a shape in which the drive element (the groove indicates rigidity and the elasticity FAJj33 indicates stiffness from the base of 34) extends. , the free ends of the elastic legs 133) are fixed with the housing (l) (fixed with the board, the outer cutter holder: 0) is placed in the housing (1) with the free end approximately parallel to the housing (1), and the upper surface is open. Then, the east bottom surface is closed, and at 7, the connecting cylinder (31) is molded on a part of the lower end of the board (32, which protrudes below the board). The connecting tube (3) that protrudes upward
1) Inside the inner cutter block i31 protruding from the bottom surface 4
6] is inserted into the inner blade lock 13) and the connecting cylinder 31)
The inner bottom of the connecting cylinder (3I) ((the housed push-up spring 48) presses against the lower surface of the lash 46), and the inner blade lock □, 3) is spring-biased upward. This reciprocating electric shaver is characterized by the fact that the blade surface of the inner blade lock (3) is in pressure contact with the inner surface of the outer blade (2t). A thin housing (1) whose front and rear lengths are much shorter than the inside, and an outer cutter block (2) that is absorbed by the upper part of the housing [+1]
and an inner blade (3) that reciprocates along the inner surface of the outer blade (2),
The outer blade block (2) holds the 〒r〉f4+.

The housing (1) is shown in Figure 3.
A pair of cow split bodies (Ia) ('Ib)'e screws (5
) to form W, the internal structure is ≠ the mother storage battery (61 and t-9 (8), as well as the radial flow unit (1U) equipped with a photovoltaic probe (11) and the photovoltaic electron Circuit pack containing part (13) (12j is accommodated.Storage battery 6)
, a seventh connector (8), a plug lock (10), and a circuit block (121) are electrically connected on the chassis 1i6- which is assembled in the housing (11), and a switch is formed at one place on the chassis 1i6-1. Terminal (Iη and housing ill
A switch bar that slides up and down on the outside)? - To set the 20i, use the constant contact plate (8) and the storage battery (6).
1, the power supply circuit is fully opened and closed. On the other hand, the outer blade lock (2) has a semi-cylindrical shape, consisting of a thin plate-shaped outer blade (2b) attached to an outer cutter frame (2a) that can be attached to and removed from the upper part of the housing (1). ) no-i! The above-mentioned driver (30) is removed from the housing (1) by pressing the attachment/detachment button (241'i) protruding from the housing (1) at both ends. The inner blade is housed in the housing and is formed as a part of the drive element (30) and protrudes upward through the blade holder opening (41) on the top surface of the blade holder (41). block 3
(31 is detachably connected. This drive element (3fl
: is formed by composite t=itqh into a shape in which approximately U-shaped elastic legs (O) exhibiting elasticity extend from both lengthwise ends of a rectangular substrate that exhibits full rigidity, and is formed at the upper end of each elastic leg j331. Mounting piece (341 each blade holder (40
1. A bearing 135 formed on one side of the board 1321 (connected to the output shaft of the rotor (8) inside) The return shaft (9b) of the eccentric gum (9a) is inserted, and the -ta (
8), the board +3z is reciprocated left and right while causing both elastic legs 331 to move. On the other hand, connecting tube +31
), as shown in FIGS. 3 to 5, a part of the lower end of the board is 2! It is a cylindrical body that is integrally molded onto the substrate (321) and has an open top surface and a closed bottom surface, with a boss ('39) protruding from the center of the inner bottom surface, and a round hole and a long hole in the peripheral wall. A pair of diametrically opposed bicylinizations (3
On the other hand, the inner cutter block (3) has a large number of inner cutters (, 3b) i arranged side by side on the inner cutter frame (3a). As shown in FIG.
6) is installed, and as shown in the same figure, the
i = Drive element (connection of 301, etc.) is made to protrude into (31), and is fitted into the pin 45 + all caltrop holes to be attached to the drive element ((material)). This bishi, 451 is bishi, 3+
3) It can be moved up and down within a certain range within the round hole,
Within this range, the entire inner blade lock (3) can be moved up and down,
The inner cutter block (3) is spring-biased upward by a push-up spring 148) housed between the bottom of the connecting cylinder (31) and the lash 46). A coil spring is used for this spring 4&, and the spring 48) is fitted into the lower end of the boss (3).
9' is positioned at the center of the bottom of the connecting tube (31). In this way, the coil spring 1481 is connected to the driver (30
) of the board (3Z).As shown in Figure 1, the length of the spring 481 is within the space below the board. Therefore, the length between the board 132+ and the inner cutter block (3) can be shortened, and the height of the entire electric shaver can be lowered, contributing to miniaturization. 0 Sho 1 The above connecting tube; 3
The opening of the blade holder 40) from which 1) protrudes 0.41) A dustproof cushion 49) is housed between the periphery and the board 3,
Blade holder, 40. The above-mentioned plug blade (including +g), which prevents the beard debris that accumulates on the top from entering the housing 11), is housed in one half of the inner bottom of the housing (11). Operate the button 1161 f exposed on the bottom and use the plug blade Vllj or the housing Jji (1
Slide it between the position where it is pulled in and the position where it protrudes through the opening at the bottom of the side of the housing (19),
Connect the above switch handle 2o to the power circuit of the electric shaver.
The plug switch is arranged in series with the power switch, which is opened and closed by the power switch 1, and opens and closes the radio switch.
The current to the battery (8) is completely cut off and the storage battery (6) is charged. By the way, this electric razor can be protected with the outer blade lock (2) + set (4) when not in use, and the cutter set (4) shaped as shown in Fig. 13 is attached to the housing. (1) can be attached and removed at will. This + Serazu (4) is a semi-cylindrical body that covers the entire circumference of the outer blade block (2)! 501, a side piece b+52 that covers both sides of the housing (1), and a rear piece covering the rear surface of the housing ), the protrusion (G) on the rear surface of the housing (1) fits into the housing (1), and the protrusion on the front surface of the outer cutter frame (2a) engages with the protrusion 67) on the lower end of the front surface of the main body part 50). 1). Also, +
When the cover (4) is fully covered, the lower front edge of the main body 1501 corresponds to the upper edge of the 10 switch hashidle side which is in the OFF position, and when the 10P switch (4) is fully covered, , switch handle 伽) moves upwards to prevent the switch from turning on, which prevents the electric razor from accidentally starting when you carry it with you. This +Serazu (4) is equipped with a brush (61) for cleaning the copper mine and beard debris used when shaving. As described above, the present invention provides a storage section (59) formed on the inner surface of one side piece 62. is molded on the substrate with a part of the lower end protruding below the substrate,
A spring for pushing up is housed in the bottom of the connecting cylinder, and a bushing protruding from the lower surface of the inner cutter block comes into pressure contact with the spring inside the connecting cylinder, so that the inner cutter block is urged upward by the spring force,
The push-up spring required to spring-bias the inner cutter block upward can be accommodated in the space that protrudes downward from the board, and as a result, the length between the board and the inner cutter block can be reduced by this spring. It has the advantage of being able to set the length by subtracting the length of the electric shaver, shortening the distance between the board and the inner cutter block, and setting the entire height of the electric shaver to be the same, contributing to overall miniaturization.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing a conventional example, FIG. 2 is a perspective view showing an embodiment of the present invention, FIG. 3 is an exploded perspective view of the same, and FIG.
The figure is a longitudinal sectional view of the same as above, FIG. 5 is a sectional view taken along line A-AN in FIG. 4, and FIG. 6 is a sectional view taken along line BB in FIG.
(2) is the outer cutter block, (2b) is the outer cutter, (3) is the inner cutter block, (first) is the drive element, 031)
(3) is the connecting tube, (3 is the base plate, (33) is the elastic leg, 401 is the blade holder, 1461 is the H lash, (the decoy is the spring. Figure 6

Claims (1)

[Scope of Claims] fil A housing having a blade holder fully formed on the upper surface and housing a Tanabata inside, an outer blade lock disposed on the blade holder,
The inner blade lock is reciprocally driven on the upper surface of the blade holder and slides into contact with the inner surface of the outer blade of the outer cutter block, and the inner blade lock and Tanabata are fully connected to cause the Tanabata rotation movement of the entire inner blade block. The drive element is molded into a shape that extends from the end of the rigid substrate to the elastic leg force, which exhibits elasticity, and the free end of the elastic leg is fixed to the housing to move the substrate. is housed in the housing approximately parallel to the blade holder, the top surface is open and the bottom surface is closed, and a connecting cylinder is molded on the substrate with a part of the lower end protruding below the substrate, and is inserted through the opening of the blade holder. The inner cutter block is connected to the connecting cylinder in such a way that the lash that protrudes from the lower surface of the inner cutter block fits into the connecting cylinder that protrudes upward, and the push-up spring housed in the bottom of the connecting cylinder presses against the lower surface of the lash to move the inner cutter block. A reciprocating electric shaver characterized in that the blade block of the blade block is biased upward by a spring, so that the blade surface of the inner blade lock comes into pressure contact with the inner surface of the outer blade. (2) The above-mentioned elastic legs are formed into a substantially U-shape that protrudes downward once from both ends of the board and then extends upward, and the free end of the upper end of each elastic leg is fixed to the housing, and the lower part of the connecting cylinder The reciprocating electric shaver according to claim 1, wherein the reciprocating electric shaver protrudes from the lower surface of the substrate between both elastic legs.