JPS5945389B2 - hair cutlet - Google Patents

Description

[Detailed description of the invention] The present invention relates to hair cutters.

Conventionally, in this type of hair cutter, the rotational output from the motor is decelerated and the direction is changed, and the rotational motion is changed into reciprocating motion through an eccentric cam and a long hole in which the eccentric shaft of the eccentric cam slides. The blade is configured to slide against the fixed blade.

However, in this case, in order for the hair cutter to achieve the cutting function (cutting hair sparsely) or the cutting function (cutting hair closely and evenly), the blade must be replaced each time, which is cumbersome. there were.

In addition, the eccentric shaft of the eccentric cam, through which the driving force is transmitted, and the driver element are linked via a loose connection made of an elongated hole, and the reciprocating mechanism of the driver element is complicated, resulting in large rattling and vibrations. It generated noise and was difficult to assemble.

It is an object of the present invention to eliminate the above-mentioned drawbacks, to provide a hair cutter that has a simple structure, allows easy switching between open and cut, suppresses noise and vibration, and is easy to use.

Hereinafter, the hair cutter of the present invention will be explained along with the drawings.

1 to 7, reference numeral 1 denotes a casing with a thin grip part 2 extending therein, and a battery 3 inside the grip part 2.
and a motor 4 are housed therein, and the axial direction of the motor 4 is arranged to be at least parallel to the axis of the grip part 2.

The output shaft 5 of the motor 4 is linked to the shaft 8 of an eccentric cam 7 via a bevel gear train 6 that reduces and changes the direction of the rotational output of the motor. It is pivotally attached to the end of a flexible horizontal arm section 11.

The driver 10 has a support shaft 13 supported at the center of a rigid base 12 on which a horizontal arm 11 extends, and legs 14 extending at right angles to the base 12 and having sufficient flexibility. .15 is extended, and furthermore, a lower side portion 16 with a protrusion 17 expanded in the center is integrally provided between the leg portions 14 and 15.

Further, on the outside of the leg portions 14 and 15, there are protrusions 18 and 19, respectively.
is expanded.

Reference numeral 20 denotes a hair cutting length adjusting member formed to a size that allows the drive element 10 to be housed therein, and side portions 21 and 22 spaced apart in parallel.
and a sliding support portion 2 extending from the upper ends of the side portions 21 and 22 in parallel to a plane including the both side portions 21 and 22.
3 are integrally formed, and a linear lower side portion 24 extends from the lower end.

Further, on the inner surface of the lower end of each side portion 21.22, the projection 18.
Projections 25 and 26 that can be engaged with 19 are provided in a protruding manner.

27 is a base member appropriately fixed within the casing 1;
A recess 28 is formed which has channels 29 and 30 that can vertically slide the side parts 21 and 22 and which can accommodate the driver 10. An engaging portion 31 is provided with a notch 32 in which a protrusion 17 provided on the lower side portion 16 of the driver 10 can vertically slide.

A spring 33 is accommodated in the notch 32 and the protrusion 17
The drive element 10 is provided so as to be pressed downward via the drive element 10.

Further, a guide groove 34.3 is provided above the recess 28 of the base member 27.
5 is formed, the sliding part 37 is engaged with the sliding support part 23 of the hair cutting length adjusting member 20, and the protrusions 38 and 39 of the joint body 36 which can be slid in the horizontal direction are engaged. Ru.

Therefore, when the joint body 36 is moved diagonally upward, the hair cutting length adjusting member 20 can be moved upward in the vertical direction.

Further, the joint body 36 is provided with a protrusion 40, which engages the engaging portion 4 of the adjustment knob 41 that protrudes outside the casing 1.
2, and is provided so as to be linked when the adjustment knob 41 is operated from the outside.

43 is pivotally connected to the support shaft 13 of the driver 10, and
It is an actuating member that operates in unison with 0, and has a protrusion 44 protruding from one side.

The protrusion 44 is provided to fit into a recess 46 at the center of the movable blade 45, and the movable blade 45 is provided to slide relative to the fixed blade 4T following the movement of the driver 10. There is.

In this case, it is preferable that the bevel gear train 6 is configured so that the direction of the sliding force of the movable blade 45 is nearly parallel to the axial direction of the grip portion 2.

Further, the blade edge of the movable blade 45 has a small cut groove 4.
8 are arranged in a constant circle, and on the other hand, on the blade edge of the fixed blade 47, small cutting grooves 49 and large cutting grooves 50 are arranged alternately or with the large cutting grooves 50 suitably spaced apart. ing.

Furthermore, the movable blade 45 is supported by springs 5 loaded on both ends of the support shaft 13.
1.52, it is pressed against the fixed blade 41.

53 is an important switch connected to the battery 3.

Reference numeral 54 denotes a connection plug for connecting to a commercial power source or for charging, and an enlarged portion 55 bulges downward at the rear of the grip portion 2.
is housed in.

Incidentally, since the enlarged portion 55 bulges out from the rear of the grip portion 2, it also functions as a handhold for gripping the grip portion 2.

Further, the operation of the hair cutter of the present invention will be explained in detail.

When the switch 53 is now turned on to drive the motor 4, the rotational motion of the motor 4 is decelerated and direction-changed via the worm gear train 6 and transmitted to the eccentric cam 7.

Since the eccentric shaft 9 of the eccentric cam 7 is connected to the horizontal arm 11 of the driver 10, the eccentric shaft 9 is connected to the horizontal arm 1.
The end of 1 is counter-driven while drawing an elliptical locus.

In this case, since the horizontal arm 11 has sufficient flexibility,
The motion component perpendicular to the horizontal arm 11 transmitted from the eccentric shaft 9 is absorbed by the horizontal arm 11, and the base 12 of the driver 100 having the horizontal arm 11 is reciprocated only in its longitudinal direction. .

Further, in this case, while the leg portions 14.15 of the driver 10 have sufficient flexibility, the lower side 1 between the leg portions 14.15
The protrusion 17 provided in the drive element 10 is engaged in the notch 32 of the engagement portion 31 provided in the recess 28 of the base member 27.
Since the horizontal movement of the lower part is restrained, driver 1
Only the upper part of 0 will swing.

Further, due to the reciprocating movement of the base 12, the actuating member 43 connected via the support shaft 13 and the movable blade 45 engaged with the actuating member 43 are caused to follow the movement, parallel to the axial direction of the grip part 2. The movable blade 45 is closer to the fixed blade 47
It is slid against.

At this time, as shown in FIG. 1, the movable blade 45 is brought into contact with the fixed blade 41 at the position a in FIG. When it is in a position where it engages with any of the large and small kerf grooves 49 and 50, it performs a cutting function.

On the other hand, when the adjustment knob 41 is slid on the outer surface of the casing 1 from the state shown in FIG. 1 to the state shown in FIG. While being slid, the side portions 21 and 22 of the hair cutting length adjusting member 20 fit into the channel 29 of the recess 28 of the base member 27.
．． 30 is slid upward, that is, the hair cutting length adjusting member 20 is moved upward with respect to the driver 10.

At this time, the protrusion 18.1 of the leg 14.15 of the driver 10
9, the protrusion 25.2 of the side part 21.22 of the base member 21
6 engages and pushes up slightly, so that the entire drive element 10 is moved upward.

Therefore, the movable blade 45 that follows the drive element 10 through the actuating member 43 is also moved upward, and assumes the position b in FIG. Only the large kerf 50 on the blade edge of the fixed blade 47 will mesh with it to achieve the skidding function.

As described above, in the hair cutter of the present invention, although the driver 10 that drives the movable blade 45 is bent in the vertical direction, it is movable in a direction nearly parallel to the axis of the grip part 2 by receiving the driving force from the eccentric cam T. The horizontal arm 11, which is provided in Ampulla 5 receiving connection plug 54
5 is protruded and serves as a handhold.(1) The swing direction of the movable blade is close to the axial direction of the grip, making it easy to operate.(11) Easy to operate by simply adjusting the contact position of the movable blade. The switching operation can be performed to obtain the skiving function or the cutting function with one touch (iiD) The gripping can be performed reliably (iψ) The eccentric cam can be connected to the drive element without intervening an elongated hole, and the drive system for the movable blade can be Also, without using loose coupling parts, it is possible to suppress vibration to a minimum and prevent the generation of noise (ψ) It is possible to achieve remarkable effects such as extremely improved usability in general.

[Brief explanation of drawings]

FIG. 1 is an internal side view of the hair cutter of the present invention, FIG. 2 is a partially exploded perspective view of the same, FIG. 3 is a perspective view of the same portion, FIG. 4 is an internal side view of the same, and FIG. 6 is an explanatory view of the same, FIG. 7 A is a partial sectional view taken along the line A-A in FIG. It is a sectional view taken along the line CC in the figure. 1...Casing, 2...Grip part, 3...Battery, 4...Motor, 5...
...Output shaft, 6...Bevel gear train, 7...
... Eccentric cam, 8 ... Axis, 9 ... Eccentric shaft, 10 ... Drive element, 11 ... Horizontal arm, 12 ... ...Base, 13...Spindle, 14.15...Leg, 16...Lower side, 11...Protrusion, 18.19... ...Protrusion, 20...Hair cutting length adjustment member, 21.22.
...Side part, 23...Sliding support part, 24
...Lower side, 25, 26...Protrusion,
27... Base member, 28... Recess, 29
．． 30... Channel, 31... Engaging portion, 32... Notch, 33... Spring, 3
4.35... Guide groove, 36... Joint body, 37
...Sliding part, 38゜39 ...Protrusion, 4
0...Protrusion, 41...Adjustment knob, 4
2...Engagement part, 43...Operating member, 4
4... Protrusion, 45... Movable blade, 46.
...Concavity, 4T...Fixed blade, 48.49.50
....cut groove, 51.52 ....spring', 5
3... On/off switch, 54... Connection plug, 55... Enlarged portion.

Claims (1)

[Scope of Claims] 1. A casing having a grip portion with a protruding enlarged portion at the rear thereof, and a rotational driving force from a motor disposed within the grip portion, the driving direction of which is converted through a bevel gear train. It is equipped with an eccentric cam to be transmitted and a flexible arm part to which an eccentric shaft of the eccentric cam is pivotally connected, and is capable of reciprocating in the axial direction of the motor and finely movable in a direction perpendicular to the direction of the reciprocating motion. A movable blade that is movably provided, a movable blade that is connected to the driver and has a constant cut groove with a small depth of cut, and a groove with a large depth of cut and a large cut that can match the cut groove. A hair cutter comprising a fixed blade having a groove formed therein, and a device for finely moving the driver in a direction perpendicular to the reciprocating direction. 2. The hair cutter according to claim 1, wherein the axes of the grip portion of the casing and the motor are parallel to each other. 3. The hair cutter according to claim 1, wherein a connecting plug is housed within the enlarged portion of the grip portion.