JPH0551251U - Electric razor - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an electric razor that is not damaged even if the outer blade is formed thin. A mounting base 40 that reciprocates is provided in an opening 56 provided in a lower portion of an inner blade support base 50, and an inner side surface of the opening on the side of the reciprocating movement of the mounting base 40 and a mounting base facing the inner side surface. The inner blade 51, which is removably fitted to the outer surface in close contact with the inner surface of the outer blade 62 provided with the beard penetration hole 61, is provided on the upper portion of the inner blade support base 50. In the razor, elastic members 48 and 49 were interposed between the outer side surface of the mounting base 40 and the inner side surface of the opening facing the outer side surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 In this invention, an inner blade support is detachably fitted to a reciprocating mount, and an inner blade that reciprocates while slidingly contacting the inner surface of the outer blade provided with a beard entry hole is attached to the inner blade support. Regarding the electric razor provided.

[0002]

[Prior Art]

 Conventionally, an electric shaver shown in FIG. 5 is known. In FIG. 5, 1 is an electric razor body, 2 is an inner blade drive shaft that reciprocates left and right by a drive motor (not shown) provided in the body 1, and 3 is attached to the inner blade drive shaft 2 so as to be vertically movable. The mounting base is biased upward by a spring S. The mounting base 3 is provided with four pillars 5 extending upward, and an engaging portion 5a protruding outward is formed on the upper part of the pillar 5.

Reference numeral 7 denotes an inner blade supporting base that holds the inner blade 6, and an opening 8 is provided in a lower portion of the inner blade supporting base 7 as shown in FIG. 6, and inner side surfaces 8 a to 8 d of the opening 8 are provided. Are formed so as to contact the outer side surfaces 3a to 3d of the mounting base 3. Then, as shown in FIGS. 7 and 8, the opening 8 of the inner blade support base 7 is detachably fitted to the mounting base 3 to attach the inner blade support base 7 to the mounting base 3. In this, the inner blade support base 7 is detachably fitted to the mounting base 3 so that the beard that has been cut and accumulated inside can be easily cleaned.

Due to the fitting, the outer side surfaces 3a to 3d of the mounting base 3 are brought into close contact with the inner side surfaces 8a to 8d of the opening 8 of the inner blade supporting base 7, whereby the inner blade supporting base 7 is attached to the mounting base 3. I try not to rattle.

Further, in FIG. 5, reference numeral 9 denotes an outer blade case holding an outer blade 10 provided with a beard penetration hole H. When the outer blade case 9 is attached to the upper surface 1 a of the main body 1, the inner surface of the outer blade 10 is The inner blade 6 is adapted to be in pressure contact.

When the inner blade drive shaft 2 is reciprocated, the mounting base 3 reciprocates and the inner blade 6 reciprocates while slidingly contacting the inner surface of the outer blade 9. By this reciprocating movement, as shown in FIG. 9, the beard N that has entered the beard entry hole H provided in the outer blade 9 is cut by the outer blade 9 and the inner blade 6.

[0007]

[Problems to be solved by the device]

 By the way, when the beard N is cut, the inner blade 6 collides with the beard N due to the reciprocating movement of the mounting base 3, and the impact due to the collision is applied to the outer blade 10. Therefore, the outer blade 10 may be damaged. In particular, when the outer blade 10 is formed thin to improve the sharpness, there is a problem that the outer blade 10 is easily damaged by the impact.

Further, since the inner blade supporting base is detachably fitted to the mounting base, a gap is created between the mounting base and the inner blade supporting base. Therefore, there is a problem that the mounting base and the inner blade support base collide with each other during cutting, and the collision causes noise.

The present invention has been made in view of the above problems, and an object thereof is to provide an electric shaver which is not damaged even if the outer blade is formed thin and has less noise. is there.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a mounting base that reciprocates in an opening provided in a lower portion of an inner blade support base, and an inner side surface of the opening that is the reciprocating direction side of the mounting base and the inner side surface. The outer surface of the mounting base facing the above is closely attached to the inner surface of the outer blade provided with a beak penetration hole, and the inner blade is slidably contacted with the inner surface of the outer blade. In the electric shaver provided on the upper portion, an elastic member is interposed between the outer side surface of the mounting base and the inner side surface of the opening facing the outer side surface.

[0011]

[Action]

 According to this invention, the inner blade supporting base fitted to the mounting base reciprocates by the reciprocating movement of the mounting base, and the reciprocating motion causes the inner blade to reciprocate while slidingly contacting the inner surface of the outer blade. Then the beard is cut off. At the time of this cutting, the inner blade does not collide with the beard, but due to the elastic member interposed between the outer surface of the mounting base and the inner surface of the opening of the inner blade support that opposes this outer surface. The impact of the collision is absorbed.

[0012]

【Example】

 An embodiment of an electric shaver according to the present invention will be described below with reference to the drawings.

In FIGS. 1 to 4, reference numeral 11 denotes a main body case that constitutes an electric razor main body. In the main body case 11, a motor (not shown) for reciprocating the inner blade drive shaft 12 and an electric power to the motor are provided. It has a built-in battery (not shown) for supply. Reference numeral 13 is a switch for turning on / off the motor. The inner blade drive shaft 12 is formed integrally with the base portion 21 of the vibrator 20.

The vibrator 20 includes hanging pieces 21 a and 21 b hanging from both ends of the base portion 21, vibrating plate portions 22 and 23 extending upward from lower portions of the hanging pieces 21 a and 21 b, and the vibrating plate portion 2. It has the fixed part 24,25 formed in the upper end of 2,23. The fixing portions 24 and 25 are fixed to the main body case 11 with screws 26. Reference numeral 27 denotes an attachment portion provided on the lower surface of the base portion 21, and a slit plate 29 having a slit hole 28 extending in a direction orthogonal to the paper surface is attached to the attachment portion 27. An eccentric shaft 30 which is eccentrically rotated by the motor is inserted in the slit hole 28, and the eccentric rotation of the eccentric shaft 30 causes the vibrator 20 to reciprocate in the left-right direction (in FIG. 1). ing.

Reference numeral 31 is a seal rubber for preventing a cut beard from entering the main body case 11, 32 is a spring for pressing an inner blade 51 described later against the inner surface of the outer blade 62, and 40 is an inner blade holding the inner blade 51. The mount 50 is a mount to which the mount 50 is detachably attached, and is mounted on the inner blade driving shaft 12 so as to be vertically movable. 33 is a pin for preventing the mounting base 40 from coming off.

The mounting base 40 has a tubular body 42 provided with a hole 41 that fits into the inner blade drive shaft 12, and engagement blocks 43, 44 provided on the left and right sides of the tubular body 42. The engaging blocks 43, 44 are provided with columns 45, 46 extending upward, and protrusions 45a, 46b protruding outward are provided on the upper portions of the columns 45, 46. 47 is a protrusion extending in the vertical direction.

Contact surfaces 43a to 43c and 44a to 44c are formed on the engagement blocks 43 and 44, and the contact surfaces 43c and 44c on the reciprocating direction side have a flat plate shape with a thickness of about 1 mm. Elastic members 48 and 49 made of rubber are adhered.

The inner blade support base 50 is composed of a case body 52 having an inner blade 51 on the upper side and an opening on the lower side. The side walls 52a and 52b of the case body 52 face each other and are flat plate-shaped contact plates. 54,55 are provided. The contact plates 54, 55 and the side walls 52a, 52b form an opening 56 into which the mount 40 is fitted.

Then, when the mounting base 40 is fitted into the opening 56 of the inner blade supporting base 50 and the inner blade supporting base 50 is mounted on the mounting base 40, the abutting surfaces 43a and 44a of the mounting base 40 become side walls 52a. The contact surfaces 43b and 44b contact the side wall 52b in close contact with each other, and the elastic members 48 and 49 contact the contact plates 54 and 55 in contact with each other. That is, the entire inner side surface of the opening 56 and the entire outer side surface of the mounting base 40 come into contact with each other in a close contact state, and the inner blade support base 50 does not swing with respect to the mounting base 40 due to these close contact states. It is like this.

When the mounting base 40 is fitted to the inner blade support base 50, the protrusions 45a and 46b of the support columns 45 and 46 engage with the upper ends of the abutting plates 54 and 55, and the force exceeds a predetermined level. The inner blade support base 50 is prevented from coming off the mounting base 40 unless added.

A guide groove (not shown) that engages with the protrusion 47 of the mounting base 40 is formed on the inner side surfaces of the side walls 52a and 52b, and the upper end portion (not shown) of this guide groove and the protrusion 47 are formed. The upper end portion 47a of the inner blade abuts against the upper edge portion 47a to regulate the mounting position of the inner blade support base 50 in the vertical direction.

Reference numeral 60 denotes an outer blade case that holds an outer blade 62 that is curved in a convex shape and that has a beard penetration hole 61 on the entire surface, and that is detachably attached between the locking portions 11 a and 11 b provided at both upper ends of the main body 11. It is designed to be installed in the country.

When the outer blade case 60 is mounted between the locking portions 11 a and 11 b with the inner blade support 50 mounted on the mounting base 40, the inner blade 51 is attached to the inner surface of the outer blade 62 by the urging force of the spring 32. Pressure contact.

Denoted at 15 is an attachment / detachment button provided on the locking portions 11a and 11b, and when this button is pressed, the outer blade case 60 is disengaged from the locking portions 11a and 11b. Reference numeral 16 is a protective case for protecting the outer blade 62.

Next, the operation of the electric shaver of the above embodiment will be described.

First, when the switch 13 is turned on in the assembled state as shown in FIG. 1, a motor (not shown) is driven and the inner blade drive shaft 12 reciprocates left and right, whereby the mounting base is 40 and the inner blade support base 50 reciprocate, and the inner blade 51 reciprocates while slidingly contacting the inner surface of the outer blade 62. By this reciprocating movement, the beard that has entered the beard entry hole 61 provided in the outer blade 62 is cut by the outer blade 62 and the inner blade 51.

During the cutting, the inner blade 51 collides with the beard N (see FIG. 9), but the impact of the collision is absorbed by the elastic members 48, 49 via the inner blade supporting base 50. The impact applied to the outer blade 62 is reduced, and even if the outer blade 62 is thin, it is possible to prevent the outer blade 62 from being damaged by the impact.

A state in which the abutting surfaces 43c and 44c of the mounting base 40 and the abutting plates 54 and 55 of the inner blade supporting base 50 collide with each other via the elastic members 48 and 49 without directly colliding during cutting. Therefore, no noise is generated by the collision. Therefore, it is possible to provide an electric razor with less noise.

Further, since the flat elastic members 48, 49 and the flat contact plates 54, 55 are in close contact with each other, the impact caused by the collision causes the inner blade support base 50 to swing vertically. The inner blade 51 does not separate from the inner surface of the outer blade 62 and the sharpness does not deteriorate.

In the above embodiment, the elastic members 48, 49 are attached to the contact surfaces 43c, 44c of the mounting base 40, but the invention is not limited to this, and the elastic members 48, 49 may be mounted on the contact plates 54, 55 of the inner blade support base 50. Of course, it is also good.

[0031]

[Effect of the device]

 As described above, according to the present invention, a flat plate-shaped elastic member is provided between the outer surface of the mounting base on the reciprocating direction side and the inner surface of the opening of the inner blade support that faces the outer surface. Since it is interposed, the impact of the outer blade applied during cutting is reduced by the elastic member, and it is possible to prevent the outer blade from being damaged by the impact even when the outer blade is thin.

Further, since the outer surface of the mounting base does not directly collide with the inner surface of the opening of the inner blade support during cutting, it is possible to provide an electric shaver with less noise.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a configuration of a main part of an electric shaver according to the present invention,

FIG. 2 is a front view showing the appearance of the electric razor,

FIG. 3 is an exploded perspective view of the electric razor,

FIG. 4 is an exploded perspective view illustrating a mounting state of a mounting base to an inner blade drive shaft,

FIG. 5 is an exploded perspective view showing a conventional electric shaver,

6 is a bottom view showing the bottom surface of the inner blade support base of FIG. 5,

FIG. 7 is a side view showing a mounting state of the mounting base and the inner blade supporting base,

8 is a cross-sectional view showing the cross section of FIG. 7,

FIG. 9 is an explanatory diagram showing a state of cutting a beard.

[Explanation of symbols]

 40 Mounting Base 50 Inner Blade Support 51 Inner Blade 52a Side Wall 52b Side Wall 56 Opening 61 Beard Penetration Hole 62 Outer Blade

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[Procedure amendment]

[Submission date] December 26, 1991

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

Claims (1)

[Scope of utility model registration request] 1. A mounting base that reciprocates in an opening provided in a lower portion of an inner blade support, an inner side surface of the opening on the side of the reciprocating movement direction, and an outer side of the mounting base facing the inner side surface. In the electric shaver provided in the upper part of the inner blade support, an inner blade that reciprocates while slidingly contacting the inner surface of the outer blade provided with a whisker penetration hole is closely fitted to the side surface in a detachable manner. An electric shaver, characterized in that an elastic member is interposed between the outer surface of the mount and the inner surface of the opening facing the outer surface.