JPS6316384Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an electric shaver, particularly a small electric shaver for women whose head section is equipped with a reciprocating blade section and can be opened and closed for cleaning the blade section. It's about razors.

[Background technology]

There is a type of electric shaver for women shown in FIG. 8 and below. This consists of a main body housing 1 with a built-in motor 21, and this main body housing 1.
Connection housing 3 detachably attached to the upper end of the
and a head portion 2 provided at the upper end of the connecting housing 3. The connecting housing 3 has a cylindrical portion 30 that is inserted into the interior from the upper end surface of the main housing 1 and projects downward. A drive rod 19 is provided inside the drive rod 19, which is swingably supported by a pivot pin 38 disposed approximately at the center in the vertical direction. The head part 2 is connected to the upper end of the connecting housing 3, and a blade base with a comb-like fixed blade 41 and a movable blade 42 arranged on the lower surface and pivoted to the upper end of the connecting housing 3 in a detachable and openable/closable manner. 4, and the spherical portion 20 at the upper end of the drive rod 19 is fitted and connected to a connecting seat 45 provided on the movable blade 42.

A first joint 23 is attached to the output shaft 22 of the motor 21.
is fixed, and furthermore, the second joint 24 is urged upward by a spring 28 and is connected to the first joint 23 so as to be able to move up and down and transmit rotation. Eccentric joint 2 arranged
5, a second joint 24 can be freely fitted and connected.
The eccentric joint 25 has an eccentric shaft 26 at its upper end, is supported by the eccentric shaft 26, and is connected to the engagement groove 2 at the lower end of the drive rod 19.
The eccentric joint 2 rotates with the output of the motor 21.
Reference numeral 5 causes the drive rod 19 to swing about the pivot pin 38, thereby causing the movable blade 42 to reciprocate.

Now, regarding the connection housing 3 and the head part 2 in which the blade part is assembled, the connection housing 3 is divided into two parts, front and rear, due to the installation of the drive rod 19. There is a comb 33 on the front upper edge for skin protection, and a comb 32 on the back half.
Bearing part 3 for pivotally supporting the blade base 4 on the upper edge of the rear surface
4 are formed respectively. And this two halves 3
1 and 32 are connected and fixed to each other by fitting the ribs 35 projecting upward into the rectangular engagement holes 53 of the connecting frame 10, and the respective halves 31, 3
The hook 36 provided on the connecting frame 10 is engaged with the upper surface of the connecting frame 10 to prevent the connecting frame 10 from slipping upward. The connection frame 10 has attachment/detachment buttons 51 integrally provided on the left and right sides thereof via thin elastic pieces 52, and a push-up piece 54 is provided in a window that opens upward and downward and is formed in each attachment/detachment button 51. It is integrated. As mentioned above, the fixed blade 41
The blade base 4, on which the movable blade 42 is mounted on the lower surface by a mounting pin 43, is equipped with a shaft 46 supported by the bearing 34 on the rear lower surface thereof, and a connection projecting downward on the lower surface of both left and right ends. It is equipped with a hook 44, and the tip of this connecting hook 44 is connected to the connecting frame 1.
By locking the attachment/detachment button 51 at 0 to the lower edge of the window, the blade base 4 and the connection housing 3 are fixed via the connection frame 10.

However, in the case of the head portion 2 of the lever, the fixed blade 41
When cleaning the movable blade 42, the two attachment/detachment buttons 51 are pushed in as shown in FIG.
When the engagement with the blade is disengaged, the push-up piece 54 bends and pushes up the blade base 4, and therefore the blade base 4 opens upward and exposes the blade portion.

Although it is constructed as described above, the push-up pieces 54 provided at both left and right ends of the connecting frame 10 require a certain length for their function, as shown in FIG. The dimension indicated by L in b is absolutely necessary, so the head part 2
The left and right dimensions of the blade become larger than the width of the blade. For this reason, it has the disadvantage that it is difficult to use when cutting body hair in narrow areas.

[Purpose of invention]

The present invention has been devised in view of these points, and its purpose is to provide an electric shaver that has a small head portion and is easy to use.

[Disclosure of invention]

Therefore, the present invention has a blade base with a blade attached to the lower surface and whose rear part is pivoted to the base, an engagement connecting member that connects the base and the blade base, and a blade base disposed on the left and right sides of the base. an attachment/detachment button that controls engagement of the engagement connection member;
It is characterized in that it consists of a push-up piece that extends from the attachment/detachment button toward the center and pushes up the blade base relative to the base.

The present invention will be described in detail below based on the embodiments shown in FIGS. 1 to 7. The basic configuration of the illustrated example is the same as that of the conventional example, and includes the upper end of the connecting housing 3 and the blade base 4 attached to this upper end.
A drive rod 19 has a blade section attached to the lower surface of the blade base 4, and is disposed within the connection housing 3 and engages with a connection seat 45 whose upper end is provided on the movable blade 42. The movable blade 42 is reciprocated by the swinging motion. The drive structure of the drive rod 19 is such that the connecting housing 3 is divided into two halves 3 in the front and back.
1 and 32 are connected to each other by the connecting frame 10, etc., which are exactly the same as in the conventional example. Also, the same numbers are given to the same members. However, the rear surface of the connecting housing 3 is finished as a flat surface with a non-slip surface as shown in Figures 3c and 5, and when used, the fingers should be placed on this flat surface as shown in Figure 6. What you can do is
In other words, it is easy to hold and use securely.

The connecting frame 10 is made up of a rectangular part surrounding an opening 53 that opens upward and downward in the center, a pair of left and right attachment/detachment buttons 51 provided from both ends of this via thin elastic pieces 52, and each attachment/detachment button 51. It is composed of an engaging protrusion 55 that is provided integrally with the button 51, and push-up pieces 54 that extend from the engaging protrusion 55 and have their tips positioned in front of the rectangular portion. On the other hand, in the blade base 4, connecting hooks 44 are suspended from the lower surface of both the left and right ends, and a protrusion 47 that penetrates the fixed blade 41 and the movable blade 42 and projects downward is suspended from the front lower surface. ing.

However, in the case of a lever, the connection housing 3
The shaft 4 at the lower rear end is connected to the shaft 4 at the lower rear end by the bearing part 34 at the rear of the upper end.
The blade base 4 on which the blade 6 is pivotally supported is fixed to the connection housing 3 by engaging the tips of the connection hooks 44 hanging down from both ends with the engagement protrusions 55 of the connection frame 10. Furthermore, by pushing in the attachment/detachment buttons 51 that move together with each engagement protrusion 55, the connection hook 44 and the engagement protrusion 55 can be disengaged and the blade base 4 can be opened. It is possible. When the engagement between the blade base 4 and the connecting frame 10 is released, a pair of push-up pieces 54 extending from both attachment/detachment buttons 51 are suspended from the lower front surface of the blade base 4. The protrusion 47, whose lower end is located in front of the connecting frame 10 and below the fixed blade 41 and the movable blade 42, is bent and pushed up as shown in FIG. 4, so that the blade base 4 can be flipped up. It is something that begins to open up. In particular, in this embodiment, the front part and the center part in the left and right direction of the blade base 4, whose rear part is pivotally supported, is pushed up by the push-up piece 54 that is linked to the attachment/detachment button 51. This arrangement is effective for opening the base 4 by flipping it up.

FIG. 7 shows the structure of the pivot joint between the blade base 4 and the connection housing 3, in which the bottom of the bearing hole surrounded by C-shaped portions 37 opening above both ends of the shaft support 34 is shown in FIG. A protrusion 39 for clicking is provided protrudingly, and the rear wall surface of the upper opening is used as a stopper 40 for regulating the opening angle of the blade base 4 together with the protrusion 39. It has a substantially rectangular cross section that becomes longer in the front and back direction when closed, and a recess 4 is provided on the rear lower surface of the shaft 46 at this time.
8, a convex portion 49 is provided on the lower front edge. Then, the diameter from the rotation center O to the convex portion 49 is determined by the rotation center O
to the upper part of the front wall of the C-shaped portion 37, and between the closed state shown in FIG. 7a and the fully opened state shown in FIG. A click is obtained by engagement with the corner of the recess 48, and the closed and open states are elastically maintained by the elasticity of the front wall of the C-shaped portion 37. There is. Moreover, since the upper opening width of the C-shaped part 37 is made slightly smaller than the shorter width of the shaft 46, by pulling out the shaft 46 upward while elastically deforming the C-shaped part 37, the blade base can be 4 can be removed from the coupling housing 3.

[Effect of idea]

As described above, in this invention, since the push-up pieces that push up the blade base extend toward the center from the left and right attachment/detachment buttons, the push-up pieces increase the horizontal width of the head. If you compare it with the conventional example, it is 2L.
The width can be shortened by that amount, and as a result, the overall size is small and the usability is improved when cutting body hair in narrow areas such as the armpits.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is an exploded perspective view of the same, Fig. 3 a, b, and c are a plan view, longitudinal sectional view, and A of the same with the blade base removed. -A line sectional view; Figures 4a and b are a cross-sectional view and a cutaway front view combining different cross-sections of the above; Figure 5 is a perspective view of the same; and Figure 6 is a side view showing the above in use. , Fig. 7 a, b, and c are cross-sectional views of the pivot joint between the blade base and the connection housing, Fig. 8 is a vertical cross-sectional view of the conventional example, and Fig. 9 a, b are the same fractured in multiple planes. A broken plan view and a cross-sectional view, and FIGS. 10a, b, and c are partial sectional views of the same as above, in which 2 is a head portion, 3 is a connection housing as a base, 4 is a blade base, and 44 is an engagement A connecting hook as a connecting member, 51 a detachable button, 5
4 indicates a push-up piece.

Claims (1)

[Scope of utility model registration request] A blade base with a blade attached to the lower surface and whose rear part is pivotally supported by the base, an engagement connecting member that connects the base and the blade base, and an engagement connection member arranged on the left and right sides of the base. An electric shaver comprising an attachment/detachment button that controls engagement of members, and a push-up piece that extends from the attachment/detachment button toward the center and pushes up a blade base relative to the base.