JPH0632059Y2 - Outer blade mounting mechanism for electric cutter - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an electric pill remover, an electric shaving device, and the like.
The present invention relates to a so-called electric cutter, particularly an outer blade mounting mechanism in which an outer blade (fixed blade) is brought into sliding contact with an inner blade (driving blade).

[Prior Art] An enclosure for accommodating an outer blade that accommodates an inner blade is provided in a main body case,
By fitting the blade frame of the outer blade to the surrounding wall, the engaging hole provided in the blade frame snap fits to the engaging protrusion that is biased by the spring means to the outside of the surrounding wall. Are known. (See, for example, Japanese Utility Model Laid-Open No. 53-146493.) [Problems to be Solved by the Invention] Since the outer blade mounting mechanism described in the related art is configured to fit the outer blade frame to the surrounding wall, When the inner blade is driven at high speed due to the fitting gap between the inner peripheral surface and the outer peripheral surface of the surrounding wall, the outer blade tends to shake independently of the surrounding wall. This will cause instability in the sliding contact relationship.

Further, since a hole for projecting the engaging projection must be necessarily formed through the surrounding wall, the surrounding wall that is raised by high-speed driving of the inner blade through the gap between the hole and the engaging projection. There is also the fear that the internal debris will leak out.

In view of the above, the present invention allows the outer wall to absorb the blurring of the outer blade, which stabilizes the pressure contact relationship between the inner blade and the outer blade. The purpose is to wipe out.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a main body case with an outer blade-fitting surrounding wall for accommodating an inner blade, and fitting the outer cutter blade frame outside the surrounding wall. In the electric cutting machine, a thin elastic wall portion that surrounds the periphery of the surrounding wall is formed at the base of the surrounding wall, and a bar spring that urges the surrounding wall to expand outward is attached to the inner circumference of the surrounding wall. At the same time, the gist is that the engaging portions are arranged at required intervals all around the outer surface of the surrounding wall, and the engaging portions provided on the inner surface of the blade frame of the outer blade are releasably engaged with the engaging portions. To do.

[Embodiment] As an example of an electric cutter, a pill remover is shown in the figure, and it is composed of a synthetic resin container A having an upper portion with a handle 1 and a lower portion with a body 2 in appearance. The body 3 is provided with the battery 3 and the motor 4 connected to the battery 3, and the rotation shaft 5 of the motor 4 penetrates the partition wall 6 forming the body and projects downward. The inner blade 7 is fixed downward, and the inner blade 7 is interposed in an inner blade accommodating recess 9 having a downward opening formed by the partition wall 6 and an outer blade fitting surrounding wall 8 hanging down perpendicularly to the partition wall 6. Has been done.

An outer blade 10 is fitted and mounted on the outer side of the surrounding wall 8. The outer blade 10 is formed by a dome-shaped blade plate 10b having a large number of pill intervention holes 10a and a blade frame 10c fixed to the outer peripheral edge of the blade plate 10b,
The inner surface of the blade frame 10c is fitted to the outer surface of the surrounding wall 8,
Therefore, the sliding contact relationship between the inner blade 7 and the outer blade 10 is maintained.

At the fitting start end edge of the blade frame 10c that constitutes the outer blade 10, a guide 11 is provided inside the body A so as to be vertically movable as shown in FIG.
Further, the lower end of the operating lever 13 which is always urged downward by the spring 12 is abutted, and a downward driven portion 13a is provided on the upper end of the operating lever 13 and the driven portion 13a is provided on the body A of the motor. The contacting piece S ₁ on the opposite side of the drive switch S is flexibly operated to come into contact with the contact piece S ₁ as described later.

Incidentally, the switch S becomes between the contact pieces S ₁ and the other contact piece S ₂ that is opposed thereto, both contact piece base portion is fixed, and the protruding portion S ₃ is the contact piece S ₂ Bently formed, this protrusion S ₃
This is a general form of a slide switch in which a knob 14 slidably provided on the body A is pressed so as to be freely pressed.

The surrounding wall 8 has a shield shape when seen in a plan view, and the entire circumference of the root of the surrounding wall 8 with respect to the partition wall 6 is formed thin to form an elastic wall portion 8a. Further, a bar spring is provided near the inner peripheral opening of the surrounding wall 8.
15 is provided adjacently to give an outward energizing biasing force to the entire surrounding wall 8, and further, locking projections are provided on the entire outer surface of the surrounding wall 8 at required intervals.
8b is provided, while on the other hand, a protrusion 10d that engages with the engagement protrusion 8b is provided on the inner surface of the blade frame 10c of the outer blade 10, and the blade frame 10c of the outer blade 10 is fitted to the outside of the surrounding wall 8. , The protrusions 8b, 10d are engaged with each other in a snap shape, whereby the outer blade 10 is fitted to the surrounding wall 8 by one-touch operation, and
By this fitting, the sliding contact relationship between the outer cutter 10 and the inner cutter 7 is set.

In addition, 8c is a chip discharge port provided at the rear end of the surrounding wall 8, 16 is a chip collection box in which the starting end is communicated with the discharge port 8c, and 17 is a vertical position adjustment on the outer surface of the blade frame 10c of the outer blade 10. With a hakama that fits as much as possible, the vertical position of the hakama adjusts the length of the hair. 8d is a spring jaw.

Further, in this example, a battery type device is shown, but an AC type device may be used.

[Operation] On the outer blade mounting portion, that is, on the outer surface of the surrounding wall 8, the blade frame 10c of the outer blade 10
In the state shown in FIG. 1 in which is fitted, the fitting end surface of the blade frame 10c pushes up the lower end of the operating lever 13 against the spring 12. The actuating lever 13 is therefore moved upwards in the figure and the contact piece S ₁ remains stationary.

In this state, switch operation, that is, by sliding the knob 14, the knob 14 pushes the projection S ₃ of the contact piece S ₂ ,
The contact piece S ₂ contacts the contact piece S ₁ to close the circuit as in the conventional method, and the motor 4 is activated to drive the inner blade 7.

Therefore, when the outer blade 10 is detached from the surrounding wall 8 for cleaning the blade portion, the actuating lever 13 naturally moves downward in the drawing by the spring 12, and this movement causes the contact piece S ₁ to move downward in the drawing. It is greatly bent. The same knob 14 in this deflection state by sliding operation, also by deflection of the contact piece S _2,該接piece S ₂ is the contact piece S ₁
Will not come into contact with.

That is, even if the switch is operated, the circuit remains open, so that the motor is not driven and the inner blade 7 does not rotate.

In addition, the attaching / detaching operation of the outer blade 10 is carried out by the surrounding wall 8 by the rod spring 15.
This is done against the outward expansion bias of the.

[Effects of the Invention] In short, according to the present invention, the following effects can be obtained.

(a) A thin elastic wall portion is formed on the entire circumference of the base of the surrounding wall for fitting the blade frame of the outer blade, and a bar spring is installed along the inner circumference of the surrounding wall to urge the surrounding wall to expand outward. Since they are in contact with each other, the entire circumference of the surrounding wall has uniform elasticity, and this elasticity can absorb the tendency of the outer blade to shake, which tends to occur when the inner blade is driven at high speed.

(b) Further, the blade frame of the outer blade engages with several engaging portions provided along the entire outer surface of the surrounding wall, and substantially the entire circumference of the outer blade is connected to the elasticity of the surrounding wall. Since it has a shape, it is possible to absorb the blurring tendency of the outer blade better, and solve the problem that the sharpness is likely to cause a decrease in sharpness.

(c) In addition, since it is not necessary to provide a hole for snap-fitting the blade frame of the outer blade in the surrounding wall as in the conventional case, the dust in the surrounding wall does not leak to the outside.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of the cutting machine, FIG. 2 is a front view of the same, FIG. 3 is a bottom view of the surrounding wall portion, and FIG. 4 is a side sectional view of the same. A ... Body, S ... Motor drive switch, S ₁ ... One opposing contact piece, S ₂ ... Other contact piece, 4 ... Motor, 7 ... Inner blade, 8
… Outer blade mounting part (enclosure) 8c… Thin elastic wall part, 10… Outer blade,
13 ... Actuating lever.

Claims (1)

[Scope of utility model registration request] 1. An electric cutter in which a main body case is provided with an outer blade fitting inner wall for accommodating an outer blade, and a blade frame of the outer blade is fitted on the outer side of the outer wall, wherein the base of the outer wall surrounds the outer wall. A thin elastic wall portion surrounding the wall is formed, and a bar spring that urges the wall to expand outward is laid along the inner circumference of the wall, and the engaging portion is provided on the entire outer surface of the wall at predetermined intervals. An outer cutter device mechanism in an electric cutter, characterized in that the engaging part provided on the inner surface of the blade frame of the outer cutter is engaged with and disengageably engaged with the engaging part.