WO2006051620A1

WO2006051620A1 - Electric clipper head assembly

Info

Publication number: WO2006051620A1
Application number: PCT/JP2004/017314
Authority: WO
Inventors: Eiji Ota
Original assignee: Lozenstar Kabushiki Kaisha
Priority date: 2004-11-15
Filing date: 2004-11-15
Publication date: 2006-05-18

Abstract

An electric clipper head assembly (14) comprising a base (22) attached to an electric clipper, a stationary blade (24) fixed to the base (22), a movable blade (26) reciprocable in contact with the stationary blade (24), and a guide mechanism (34) for guiding the movable blade (26), wherein when an operating member (38) fixed to the movable blade (26) is operated, the movable blade (26) rides on a projection (40) disposed on the base (22) to assume a state in which the movable blade (26) is not guided by the guide mechanism (34).

Description

Head assembly for electric burr force technology

The present invention relates to an electric hair clipper, and more particularly to a head assembly used as a part of an electric hair clipper and responsible for hair cutting.

Background art

Light

As one of the electric clippers, there is a main body that can be held in the hand, and a

Some of them consist of an attached head assembly (see WO 9 4 2 7 7 9 2). The electric hair clipper head assembly includes a base attached to the body of the electric hair clipper, and a stationary blade and a movable blade having serrated blade edges cooperating with each other for hair cutting. These blades are supported by the base so that the cutting edge of the movable blade can reciprocate on the cutting edge of the stationary blade.

In addition, the head assembly includes a guide mechanism that exerts a linear plan action on the movable blade for reciprocating movement, and the stationary blade with respect to the movable blade that is under the guide action by the guide mechanism. And a leaf spring that exerts a pressing force toward the blade.

By the way, during cutting of hair, a cut piece of hair may enter or enter between the blade edges of the stationary blade and the movable blade. Such a cut piece causes a gap between the two blades, which reduces the hair cutting function. Therefore, it is necessary to remove the cut piece after using the electric clipper or by interrupting the use.

In the conventional head assembly, the leaf spring fixed to the base is released, and the movable blade is separated from the stationary blade, thereby removing the cut pieces of hair that have entered between the two blades. can do. However, this task is cumbersome and complicated. The same applies to the rearrangement of the movable blade and the fixing operation of the leaf spring.

Disclosure of the invention

Problems to be solved by the invention

Accordingly, an object of the present invention is to provide a stationary head assembly applied to an electric clipper. It is an object of the present invention to provide a head assembly in which it is easy to remove a hair cut piece entering between a blade and a movable blade.

Means for solving the problem

The present invention relates to a head assembly applied thereto as a part of an electric clipper, and includes a base attached to a main body of the electric clipper, a stationary blade fixed to the base, and a stationary blade on the stationary blade. A movable blade that is capable of reciprocating, a guide mechanism that exerts a linear guiding action on the movable blade for reciprocating motion, and an operating member fixed to the movable blade, wherein the movable blade is An operation member for moving from one of a guide working position that receives a guide action by a guide mechanism and a non-guide action position that does not receive a guide action to the other, and a leaf spring fixed to the base, the guide action position A leaf spring that exerts a pressing force on the movable blade toward the stationary blade, and at least one projecting portion provided on the base, the movable blade being unguided from the guide action position. Product When it is moved to a position allowing the riding up of the movable blade and at least one protrusion. '

The guide mechanism includes, for example, a ridge and a groove that can be engaged with each other, and a protrusion provided on the leaf spring and a groove provided on the operation member. The operation member may be provided with an inclined surface that is continuous with an edge of the concave strip and on which the plate convex strip can run. Each of the ridges and the ridges may have a cross section made of an arc having the same diameter.

The projecting portion may have an inclined surface that is slidable when the movable blade is moved from the guide action position to the non-guide action position.

It is desirable to have a pair of the projecting portions, and each projecting portion should have an outer shape that closes a gap generated between the stationary blade and the movable blade.

The guide action position of the movable member can be a stop action position of the leaf spring with respect to the operation member.

The invention's effect

According to the present invention, by the operation of the operation member fixed to the movable blade of the head assembly, the movable blade is guided to the guide action position where the guide action is exerted by the guide mechanism, and the guide action is not extended. It can be moved from one of the working positions to the other. Said yes When the moving blade is moved from the guide operation position to the non-guide operation position, the movable blade rides on the projecting portion, the blade edge thereof is separated from the stationary blade, and a gap is generated between the blade edges of both blades. By creating a gap between the blade edges, the cut pieces of hair that have entered between them can be easily removed from between them using, for example, running water, a brush, a cloth piece, or the like. '

After the hair cut piece is removed, the movable blade is moved from the non-guide operation position to the operation position in the opposite direction by the operation of the operation unit, whereby the movable blade is in contact with the stationary blade. It can be easily returned to the position.

The guide mechanism for the movable blade that is reciprocally moved is, for example, a convex arc surface having the same diameter circular surface that can be engaged with each other provided on the leaf spring and the operation member. It can be a strip and a concave strip. At this time, when the operation member is provided with an inclined surface that is continuous with the edge of the concave stripe and on which the convex stripe can climb, the movable blade is returned from the non-guide action position to the guide action position. Therefore, the force required for the engagement of the ridges with the recesses can be made smaller.

Further, when providing the inclined surface on which the movable blade is slidable on the protruding portion, the movable blade is moved from the guide action position to the non-guide action position more smoothly and with a smaller force. Can do. The non-guide action position may be a position where the leaf spring exerts a restraining action on the movable member.

Brief Description of Drawings

FIG. 1 is a perspective view of a head assembly according to the present invention.

FIG. 2 is an exploded perspective view of an electric clipper to which the head assembly is applied.

FIG. 3 is a side view of the head assembly.

FIG. 4 is a plan view of the head assembly, showing a state in which the movable blade is in the guide action position.

FIG. 5 is a plan view of the head assembly, showing a state in which the movable blade is in the non-guide operation position.

FIG. 6 is a longitudinal sectional view of the head assembly, showing a state in which the movable blade is in the guide action position. FIG. 7 is a longitudinal sectional view of the head assembly, showing a state in which the movable blade is in the non-guide operation position.

BEST MODE FOR CARRYING OUT THE INVENTION

Referring to FIG. 1, an electric clipper to which the head assembly according to the present invention is applied is generally indicated by reference numeral 10.

The electric clipper 10 is composed of a burr force main body (hereinafter simply referred to as “main body”) 1 2 which is a portion gripped by a person who uses and operates it, and a head assembly 14 according to the present invention. The main body 1 2 has an open tip 15 to which the head assembly 14 is attached, and the head assembly 14 attached to the open tip is used for hair when using the electric clipper 10. The mowing action.

A motor (not shown) that is a drive source of the head assembly 14 (more specifically, a movable blade 2 6, which will be described later) is disposed inside the main body 12. It is transmitted to the head assembly 14 (more specifically, the movable blade 26 described later) via an eccentric shaft 16 provided at the open front end portion 15 of the head.

A pair of brackets 18 for holding the head assembly 14 on the open front end portion 15 of the main body 12 is further arranged on the open front end portion 15 of the main body 12. The illustrated bracket 18 is made of a spring steel plate that is bent.

On the other hand, the head assembly 14 is provided with a pair of hooks 19 that elastically engage with both brackets 18 of the main body 12. When the head assembly 14 is held by the open tip 15 of the main body 12, they are integrated to constitute an electric clipper 10. '

To facilitate positioning when mounting the head assembly 1 4 to the main body 1 2 and to maintain a firm mounting state of the head assembly 1 4 to the main body 1 2, the main body 1 2 The head assembly 14 is provided with a concave portion 21 and a convex portion 2 2 that can be fitted to each other.

The head assembly 14 applies a tensile force to this to cause elastic deformation of both brackets 1 8 of the main body, and the hook of the head assembly 1 9 on the bracket is released. By doing so, it can be removed from the main body 1 2. However, the coupling structure (1 9) of the head assembly 1 4 to the main body 1 2 is the same as that of the main body 1 2 (1 8 ) Can be set as desired. Therefore, the head assembly 14 can be applied to a main body other than that shown in the drawings by changing the coupling structure provided in the head assembly 14.

As shown in Fig. 2, the head assembly 14 is composed of a base 2 2 'attached to the body 1 2 of the clipper, a stationary blade (lower blade) 2 4 and a movable blade for exerting a shearing or cutting action on the hair. Blade (upper blade) 2 6.

The illustrated base 22 is made of a plate-like body having a rectangular shape as a whole, and has a size that comes into contact with and covers the open distal end portion 13 when attached to the clipper main body 12. The base 2 2 can be defined in other shapes to match the shape of the open tip 15 of the body 2 to which the head assembly 14 is applied.

When the base 2 2 is attached to the main body 12, the surface side is exposed. The hook portion 19 is provided on the back side of the base 2 2. The stationary blade 24 and the movable blade 26 are also arranged on the back side of the base 22.

Each of the stationary blade 24 and the movable tooth 26 has a plate shape as a whole, and has blade tips 30 and 3 2 having a sawtooth shape. The stationary blade 24 is fixed to the base 22 through a pair of screws 3 3 (FIG. 1), and the blade tip 30 protrudes from the base 22.

As shown in FIG. 2, the movable blade 26 is disposed on the stationary blade 24, and comes into contact with the stationary blade tip 30 at the blade tip 32, which is the tip of the movable blade 26. It touches.

The movable blade 26 is reciprocated while in contact with the stationary blade 24. More specifically, the movable blade edge 3 2 is reciprocated along the stationary blade edge 30, and the hair is sheared or cut by the shearing action of the two blade edges 30, 3 2 at this time. .

The head assembly 1 4 is provided with a guide mechanism 3 4 for linearly moving the movable blade 2 6 along the cutting edge 30 of the stationary blade 2 4 for the reciprocating motion of the movable blade 2 6. Yes. An in-house mechanism 3 4 is also provided behind the base 2 2. The guide mechanism 3 4 will be described in detail later.

The head assembly 14 also has a leaf spring 3 6 for exerting a pressing force on the movable blade 2 6, an operation member 3 8 for moving the movable blade 2 6, and a movable blade 2 6 A pair of protrusions and 40 are provided that are possible. These leaf springs 3 6, the operation part The material 38 and the protrusion 40 are also arranged on the back side of the base 22.

The above-mentioned members and parts arranged on the back side of the base 2 2 are opened when the head assembly 14 is attached to the main body 12 of the burr force, except for the blade edges 30 and 32 of both edges. Housed in the tip 15.

The illustrated leaf spring 36 has a frame shape as a whole and is bent into a crank shape or a Z shape. The leaf spring 3 6 is fixed to the base 2 2 by a pair of screws 4 3 at one of the two bent ends 4 2 and 4 4, and the other bent end 4 4 forming a part of a rectangular planar shape is the base. 22 has a tip portion 45 extending above the base 2 and extending substantially parallel to the base and extending parallel to the blade tips 30 and 32 of the two blades. The leaf spring 36 may be fixed indirectly to the base 22 by fixing it to the stationary blade 24.

The operation member 3 8 includes a plate-like main body 46 and a pair of knob portions 48 8 that rise upward from the main body and are spaced apart from each other.

The main body 46 of the operation member is placed on the movable blade 26 and fixed to the bracket, and is positioned below the other bent end 44 of the leaf spring 3'6. The main body 46 extends along the cutting edges 30 and 32 of both blades in parallel with them. On the other hand, the both knob portions 48 extend upward in a part of the rectangular shape defined by the bent end portion 4 4 of the leaf spring 36. In the leaf spring 3 6, the tip end portion 4 5 of the other bent end portion 4 4 forms a ridge 50 extending parallel to the blade tips 30 and 32. In the example shown in the drawing, the tip end portion 45 of the bent end portion 44 is shaped so as to protrude downward, and this defines the ridge 50. On the other hand, the operating member 38 is provided with a concave strip 52 extending in parallel with the cutting edges 30 and 32, and is engaged with the convex strip 50. In the illustrated example, the concave strip 52 is formed on the main body 46 and extends in its extending direction and opens upward.

In the example shown in the drawing, the protruding ridges 50 and the recessed ridges 52 that engage with each other form an in-house mechanism 34 for the movable blade 26. Therefore, the movable blade 26, to which the operating member 3 8 provided with the concave strip 52 is fixed, can move (slid) linearly along the convex strip 50 under the regulation or guiding action of the convex strip 50. It is. In the example shown in the figure, the ridges 50 and 52 have a cross-sectional shape made of arcs having the same radius, but instead, they are made of other shapes, for example, crossings of the same square shape. It can have a surface shape. Further, instead of the guide mechanism in the example shown in the figure, a concave strip 52 to which the convex strip 50 engages is provided on the movable blade 26, and the operation member 3 8 comprises only a pair of knobs 48, Even if the knob is fixed to the movable blade 26. Further, in these examples, the ridges 50 can be formed into concave ridges, and the ridges 52 can be formed into convex ridges, that is, they can be formed opposite to each other.

When the head assembly 1 4 is attached to the body 1 2 of the clipper, the eccentric shaft 1 6 extending from the body 1 2 is received between the knobs 4 8 of the operating member 3 8 and the electric clipper 10 is used. Therefore, when the eccentric shaft 16 is driven to rotate, the movable blade 26 reciprocates linearly under the guide action of the guide mechanism 34 via the operation member 38. At this time, the front end portion (blade tip 3 2) and the rear end portion of the movable blade 26 slide on the stationary blade 24.

When the convex shape 50 is engaged with the concave strip 52, that is, the movable blade 26 is in the guide action position where the guide action by the guide mechanism 3 4 is received (position shown in FIGS. 3, 4 and 6). At this time, the leaf spring 3 6 exerts a pressing force on the movable blade 2 6 toward the stationary blade 2 4 via the operation member 3 8.

The movable member 26 in the guide action position can be moved to a non-guide action position (position shown in FIGS. 5 and 7) that is not subjected to the guide action by the guide mechanism 34 by operating the operation member 38. it can. In the example shown in the drawing, both knob portions 3 8 of the operating member are moved rearward within the frame defined by the leaf spring 36 to move the movable member 26 backward, more specifically, the movable member 26 is reciprocated. By moving backward on the stationary blade 24 in a direction perpendicular to the movement direction, the concave strip 52 of the guide mechanism can be disengaged from the engagement relationship with the convex strip 50. As a result, the groove 52 is located behind the protrusion 50. The backward movement of the movable member 26 is limited by the contact of one of the knobs 38 with the leaf spring 36. Note that the moving direction of the movable member 26 for detaching the protrusion 50 from the recess 52 can be determined in a non-orthogonal direction instead of a direction orthogonal to the reciprocating direction.

The pair of projecting portions 40 has a plate-like shape as a whole and extends in the front-rear direction, and some of these are positioned below both side portions of the movable blade 26. Both protrusions 40 are spaced apart from each other in the guide direction or the reciprocating direction of the movable blade 26 as in the case of the pair of hooks 19 (FIG. 1). And is integrally formed with the base 2 2. In the case of providing both protrusions 40 on the base 22, instead of the illustrated example in which this is integrally formed with the base 22, the base 22 is formed separately from the base 22, and this is bonded, for example, with screws. It can be due to arrival. Further, the projecting portion 40 can be of any other shape, for example, a raised shape, instead of the illustrated example of an elongated plate shape.

According to this head assembly 14, the operating member 3 8 is operated with a finger to retract the movable blade 2 6 to release the engagement between the ridges 50 and the ridges 5 2. Is moved to the non-guide position, the cutting edge 32 of the movable blade rides on both protrusions 40. As a result, a gap a (FIG. 7) is generated between the cutting edge 30 of the stationary blade and the cutting edge 32 of the movable blade. Using this gap a, for example, by flowing water through the gap a, or wiping the gap a with a brush, etc. It is possible to remove the cut pieces of hair that have penetrated. "

In order to make it easy for the movable blade 26 to climb onto the protrusion 40 when the movable blade 26 moves backward, preferably, the protrusion 40 is provided with an inclined surface 54 on which the movable blade 26 can slide.

After cleaning between the two blade tips 3 0 and 3 2, the operation member 3 8 is operated with a finger, and the movable blade 2 is moved until the concave strip 5 2 is positioned below the convex strip 5 0 of the leaf spring 3 6. By moving 6 forward, it can be returned to its original position (guide action position).

Instead of the illustrated example in which two protrusions 40 are provided at intervals, for example, three or more protrusions or one relatively long protrusion can be provided.

In order to make it easier to engage the concave strip 52 with the convex strip 50, it is preferable that the main body 46 of the operating member 36 is connected to the edge of the concave strip 52 and the convex strip 50 can ride on. A certain inclined surface 5 6 is provided.

Further, the protruding portion 5 4 preferably closes the gap 5 8 formed between the stationary blade 2 '4 and the movable blade 2 6 at the side portions of the two blades 2 4 and 2 6 as in the illustrated example. It shall have such an external shape. According to this, the penetration of the cut piece of hair into the gap 5.8 between the two blades 24, 26 and the consequent entry of the cut piece between the two blade tips 30, 32 is greatly reduced. Can do.

Note that only one of the concave strips 5 2 is shown in the illustrated example. It is possible to provide the above-mentioned concave parallel strips 52. According to this, by changing the target groove 52 to be engaged with the protrusion 50, the overlapping distance of the blade 32 of the movable blade to the blade 30 of the stationary blade is changed, and the length of the hair to be cut by this is changed. Can be adjusted.

Claims

The scope of the claims

1. a head assembly applied thereto as part of an electric clipper, wherein the base is attached to the body of the electric burr force;

A movable blade having a stationary blade fixed to the base and a blade tip capable of reciprocating while contacting the blade edge of the stationary blade;

An idea mechanism that exerts a linear guiding action on the reciprocating motion of the movable blade;

An operation member fixed to the movable blade for moving the movable blade from one of a guide action position that receives a guide action by the guide mechanism and a non-guide action position that does not receive a guide action from the one to the other. An operating member for exerting force; and

A leaf spring fixed to the base, the leaf spring exerting a pressing force toward the stationary blade against the movable blade in the guide action position;

At least one protrusion provided on the base, the at least one protrusion allowing the movable blade to climb when the movable blade is moved from the guide operation position to the non-guide operation position. Including the head assembly.

2. The guide mechanism includes a protrusion and a recess that are engageable with each other, and includes a protrusion provided on the leaf spring and a recess provided on the operation member. Assembly.

3. The assembly according to claim 2, further comprising an inclined surface that is provided on the operation member and that is continuous with an edge of the concave strip on which the plate convex strip can run.

4. The assembly according to claim 2, wherein each of the convex stripes and the concave stripes has a cross section made of an arc having the same diameter.

5. The assembly according to claim 1, wherein the protrusion has an inclined surface that is slidable when the movable blade is moved to a non-guide action position by the guide mechanism.

6. The assembly according to claim 1, wherein each of the pair of projecting portions has an outer shape that closes a gap formed between the stationary blade and the movable blade.

7. The non-guide action position of the movable blade is the position of the leaf spring relative to the operating member. The assembly according to claim 1, wherein the assembly is in a restraining position.