JPS6335749Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to an electric hair clipper in which a head case, in which a blade unit having a movable blade and a fixed blade is removably attached, is swingable relative to a main body case.

[Background technology]

This type of swing-type electric hair clipper has a head case 2 equipped with a blade unit 11 as shown in FIG.
is pivotally attached to the main body case 1 so that it can swing, so that the angle at which the cutting edge touches the head can be adjusted appropriately. The blade unit 11 is removably pivoted to the head case 2 via a hinge 34 in order to facilitate cleaning of the blade and removal of hair debris. The problem is the attachment and detachment structure of this blade unit 11.

In the conventional blade unit 11, the rear end side opposite to the cutting edge is pivotally attached to the head case 2 via a removable hinge 34 so as to be swingable back and forth, and the front end side is connected to and detached from the head case 2 via a locking means 35. It is designed to be held freely. Therefore,
To remove the blade unit 11 from the head case 2, remove the blade unit 1 that protrudes from the front of the head case 2.
1 by placing a finger on the blade edge of the blade unit 11 and strongly pushing the blade unit 11 downward to release the engagement by the locking means 35,
After swinging downward and rearward around the hinge 34, the engagement portion at the hinge 34 was separated.

However, in such a conventional configuration, the blade unit 11 is strongly pushed downward, and when this is pushed down, the front end of the head case 2 is also strongly pushed downward, thereby restricting the swing axis and swing angle of the head case 2. This tends to cause the swing shaft and swing angle regulating part to come off or be damaged by placing an excessive load on or twisting the swing shaft.

In addition, the hair and oil adhering to the cutting edge caused discomfort on the fingertips, and touching the cutting edge caused pain, making women and women in particular fearful and difficult to handle.

[Purpose and outline of the invention]

This invention focuses on this fact, and by making the blade unit slidable in the front-rear direction perpendicular to the swinging direction of the head case so that it can be attached and removed, excessive pressure is placed on the swing shaft and swing angle regulating part of the head case. To enable a blade unit to be removed without putting a burden on the blade or touching the blade edge with a finger. Next, the details will be explained based on the drawings.

〔Example〕

2 to 9 show an embodiment of the electric hair clipper according to the present invention, in which the main body case 1 has a long box shape that is long in the front and back direction, and the head case 2 is attached to the front part of the head case 2 on the left and right support shafts 3a. , 3b so as to be able to swing vertically. Specifically, the head case 2 can be switched between a basic position in which it is in a straight line in front of the main body case 1 (solid line state in FIG. 6) and an upward position (state shown in phantom line in FIG. 6).
One of the left and right support shafts 3a, 3b is integrally formed on the main body case 1 side, and the other support shaft 3a is integrally formed on the main body case 1 side.
b also serves as a swing lock button for the head case 2, and the head case 2 is held so as to be switchable between the basic position in which it forms a straight line as described above and the upward position.

In FIGS. 5 and 6, a main body case 1 houses a motor 4, a battery 5, etc., which are the power source of the movable blade drive mechanism. The head case 2 is equipped with a vibrator 6, and an eccentric pin 8 fixed on the shaft of the motor 4 is engaged with a vertically long concave groove 7 formed on the rear end surface of the vibrator 6. The vibration lever 9 integrally formed on the front end of the child 6 is attached to the head case 2.
When the vibrator 6 is driven by the motor 4 to reciprocate from side to side via the eccentric pin 8, the vibrating lever 9 integrated therewith reciprocates in the same direction.

A plow comb 10 is attached to the head case 2 so that it can be moved in and out from the front end of the head case 2, and a blade unit 11 is detachably attached to the head case 2.

As shown in FIG. 5, the plow-cutting comb 10 has plow teeth 14 at its front end, in which shallow grooves 12 and deep grooves 13 are arranged in alternating rows in the left-right direction. It moves in and out of the gap between the front end and the cutting edge of the blade unit 11. In FIG. 9, the opening and retracting operation mechanism is a dogleg-shaped plow cutting lever 15 connected to the rear end of the plow teeth 14, and a slot 1 formed in the middle of the lever 15 to be long in the front and back direction.
6 is slidably fitted to a pin 17 formed on the side of the main body case 1 so as to be located coaxially with the support shaft 3b,
A guide pin 18 protruding from the rear end of the lever 15 is slidably slidable in a dogleg-shaped guide groove 20 formed on the inner surface of a switch button 19 mounted on the outer surface of the main body case 1 so as to be slidable in the front and back direction. It will fit into the In the plow cutting comb 10, when the head case 2 swings around the support shafts 3a and 3b, the guide pin 18 slides in the guide groove 20 and moves around the pin 17 integrally with the head case 2 in the same direction. Rotate to.

When the head case 2 is in the basic position in a straight line, the guide pin 18 of the plow-cutting comb 10 is located at the upper end of the arc-shaped upper half groove 20a of the guide groove 20, and the switch button 19 is pressed to the position of the character "OFF". When the slider is slid from the front to the position of the letters "Sukikarita", the clearance teeth 14 are attached to the upper wall 2a of the head case 2.
It protrudes slightly forward. In this protruding state, both the shallow grooves 12 and the deep grooves 13 overlap with the cutting edge of the blade unit 11, so that the hair introduced into both the shallow grooves 12 and the deep grooves 13 is shaved. Further, when the switch button 19 is slid forward to the position where the words "Less cutting" are written, the plow teeth 14 cause the shallow groove 12 to protrude further forward than the cutting edge of the blade unit 11, so that only the deep groove 13 is connected to the cutting edge of the blade unit 11. Rape. In this protruding state, only the hair introduced into the deep grooves 13 is plowed.

When the head case 2 is in the upward position, the guide pin 18 of the plow-cutting comb 10 is positioned in the linear lower half groove 20b of the guide groove 20, and in this state, the switch button 19 is moved from the position of the letters ``OFF'' to ``OFF''. If you slide it to the position where the words ``Large mowing amount'' is written, the condition will be obtained in which the hair introduced into both the shallow groove 12 and the deep groove 13 will be shorn as described above, and then it will be further slid to the position where the word ``Low shearing amount'' is written. Deep groove 13
A state is obtained in which only the hair introduced into the hair is shorn.

The blade unit 11 has side walls 21, 21 on its left and right sides.
A comb-shaped fixed blade 223 is fixed inside the unit base 22 having a U-shaped cross section so that its cutting edge protrudes forward, and a comb-shaped movable blade 24 is attached to the unit base 22 via a spring shaft 25. It is pressed against the upper surface of the fixed blade 23 by a tabular spring 26. The tip of the vibrating lever 9 is removably engaged with a passive piece 27 fixed to the upper surface of the movable blade 24, and the movable blade 24 is rotated by the motor 4 to rotate the fixed blade 23 through the vibrator 6. It slides back and forth on the top surface in the left and right direction.

In the electric hair clipper having such a structure, the present invention is characterized in that the blade unit 11 is slidably attached to and detached from the head case 2 in the front-rear direction perpendicular to the swinging direction of the head case 2.

Specifically, as shown in FIGS. 7 and 8, guide protrusions 28, 28 are formed in the front-rear direction on the inner surfaces of the upper ends of the left and right side walls 21, 21 of the blade unit 11,
Guide grooves 29, 29 are provided on each outer surface of the left and right side walls 2b, 2c of the head case 2, into which the guide protrusions 28, 28 are fitted slidably in the front-rear direction.

A locking means 30 is provided between the blade unit 11 and the head case 2 for holding the blade unit 11 in the installed position. The illustrated locking means 30 includes engagement recesses 31, 31 formed on the inner surfaces of the rear ends of the left and right side walls 21, 21 of the unit base 22 so as to be located behind the guide protrusions 28, 28, and the left and right side walls 2b of the head case 2. , 2c are attached to the rear parts of the guide grooves 29, 29 via springs 33, 33 so that the engagers 32, 32 can protrude and retract freely. , 31. This engagement recess 31,
31 is the upper side of the left and right side walls 21, 21,
By providing the guide protrusions 28, 28 close to each other, the guide ridges 28, 28 are provided at a distance from the inner wall of the unit base 22, thereby reducing the chance that hair particles that have entered the blade unit 11 will enter and adhere to the engagement recess 31. .

In such a case, the left and right side walls 2 of the blade unit 11
1 and 21 and insert the guide protrusions 28 and 28 of the blade unit 11 into the guide grooves 29 and 2 of the head case 2.
9 from the front and pushed backward, the engaging elements 32, 32 are temporarily retracted against the springs 33, 33 by the pushing force of the tapered rear ends 21a, 21a of the left and right side walls 21, 21 of the blade unit 11, and then At the same time, the driven piece 27 engages with the tip of the vibrating lever 9, and the blade unit 11 is held in a usable position with its cutting edge protruding forward of the head case 2. Ru. In this case, the engagement line P between the engagement recesses 31, 31 and the engagers 32, 32 (see FIG. 7) is set to be an engagement line P' that intersects the guide direction of the guide protrusions 28, 28. This also makes it possible to reduce rattling and slight vibrations when the blade unit 11 is used.

To remove the blade unit 11, remove the blade unit 1.
Grip the left and right side walls 21, 21 of 1 and remove the blade unit 1.
1 is pulled out forward under the guidance of the guide grooves 29, 29, the engagement element 32 is retracted against the spring 33 by the pushing force of the rear wall in the engagement recess 31 of the left and right side walls 21, 21, and is engaged. When the lock is released, the driven piece 27 is pulled out from the tip of the vibrating lever 9, and the blade unit 11 is removed forward from the head case 2.

[Another example]

The entire details of the illustrated embodiment are as described above.
This proposal is not limited to this. for example,
The arrangement relationship between the engaging recesses 31, 31 and the engaging elements 32, 32 may be set opposite to that of the above embodiment, and the spring 33 for protruding and retracting the engaging elements 32 may be attached to either the left or right engaging elements 32. It is also possible to provide it only on one side.

[Effect of idea]

As explained above, according to this invention, the blade unit 11 can be slidably attached to and detached from the head case 2 in the front and rear directions perpendicular to the swinging direction of the head case 2, so when attaching and detaching the blade unit 11, Do not place excessive stress on the swing shaft or swing angle regulating part of the head case 2,
It can be attached and detached safely and easily without any twisting. Also, the blade unit 11
When removing the blade unit 11, do not put your fingertips directly on the cutting edge of the blade unit 11.
The blade unit 11 can be removed by grasping the outer surfaces of the blades 1 and 21, making handling convenient.

[Brief explanation of drawings]

FIG. 1 is a side view of the main parts of a conventional electric hair clipper. Figure 2 and subsequent figures illustrate the electric hair clipper according to the present invention. Figure 2 is a top view of the whole, Figure 3 is a side view of the whole, Figure 4 is a bottom view of the whole, and Figure 5 is an enlarged view of the main parts. A cross-sectional view, Figure 6 is a vertical side view of the main part,
FIG. 7 is a vertical side view with the blade unit removed, FIG. 8 is a cross-sectional view taken along the line -- in FIG. 6, and FIG. 9 is a vertical side view showing the assembled part of the plow comb. 1...Body case, 2...Head case, 3
a, 3b...Spindle, 11...Blade unit, 23...
... fixed blade, 24 ... movable blade, 28 ... guide protrusion, 29 ... guide groove, 30 ... locking means.

Claims (1)

[Scope of utility model registration request] A head case 2 is pivotally connected to the front part of a main body case 1 containing a movable blade drive mechanism so as to be able to swing vertically around support shafts 3a and 3b, and the blade unit has a fixed blade 23 and a movable blade 24 in sliding contact with the fixed blade 23. 1
An electric hair clipper characterized in that a hair clipper 1 is attached to a head case 2 so as to be slidable in a front-rear direction perpendicular to the swinging direction of the head case 2 and to be detachable from the head case 2.