JPS5818838Y2 - reciprocating electric razor - Google Patents

Description

[Detailed description of the invention] This invention relates to a reciprocating electric shaver with an improved fixed blade holding structure.The fixed blade and holder can be easily assembled into a case, and the attachment relationship between these three parts is solid. The purpose is to provide an electric dynamic razor.

Generally, in the edge mechanism of this type of razor, the fixed blade is usually fixed to the case with screws or fusion means, so not only is it troublesome to assemble it into the case, but even after installation, the fixed blade is fixed to the case. The blade is forced to rattle.

In order to solve this problem, the inventors etc.
I devised 1.

In other words, this holder 31 consists of a pair of fixed blade holding elastic arms 33, 33 formed on the upper surface of the connecting piece 32, and a pair of mounting elastic legs 34, 34 formed on the lower surface of the connecting piece 32. The leg portions 34 are elastically deformed and engaged with the engagement holes 36 of the case 35, and the individual blades 37 are crimped and held between the elastic arm portions 33, 33.

However, in the case of the above configuration, as the movable blade 38 in contact with the lower surface of the fixed blade 37 vibrates, the elastic leg portion 34.3
4 may cause slight lateral movement.

This invention eliminates the above-mentioned drawbacks, and embodiments will be described below with reference to the drawings.

Fig. 1 is an exploded perspective view showing the slitting mechanism of the reciprocating electric shaver according to this invention. , is a movable blade that is pressed against the lower surface of the fixed blade 1 by a coil spring 5, and a push-up plate 6 is fixedly provided on the lower surface of the movable blade 3.

This push-up plate 6 is formed with a protrusion 9 that is connected to a connecting piece 8 of a movable body 7 that constitutes a part of a finishing shaving mechanism (not shown).

Reference numeral 10 denotes a decorative plate which is fixed to a blade holder to be described later together with the fixed blade 1, and the through hole 11 of the fixed blade 1 is formed on the lower surface of the decorative plate.
The guide pin 1 penetrates through and fits into the elongated hole 12 of the movable blade 3.
3 is installed protrudingly.

That is, the push-up plate 6 is vibrated and driven by the vibration of the movable body 7, and the movable blade 3 is vibrated in the direction of arrow a while receiving the spring force of the coil spring 5.

14. 14 are l pairs of elastic legs integrally formed on the lower surface side of the connecting piece 16 constituting the blade holder 15, each leg 1
An engagement protrusion 19 is formed on the inner surface of the tip of the finishing blade mechanism housing case 17 to be engaged with an engagement hole 18 formed in the finishing blade mechanism storage case 17.

Reference numeral 20.20 denotes an elastic arm part for holding a fixed blade which is integrally formed on the upper surface side of the connecting piece 16 and exerts stress in the same left-right direction as the elastic leg part 14. Engagement recesses 22 and 22 are formed in which the protrusions 21 and 21 are engaged, and the fixed blade 1 has an elastic leg 1 as shown in FIG.
4 is attached to the case 17, the elastic arm portion 20 deforms.
, 20.

Reference numeral 23 denotes a rocking prevention piece protruding from the outer surface of each tip of the elastic leg portion 14, and the prevention piece 23 prevents the engagement hole 18 from moving.
is blocked.

As shown in the figure, the engagement hole 18 is provided on the upper opening side so as to be positioned in the height direction with the engagement protrusion 19 of the leg portion 14.

In the above configuration, the fixed blade 1 is held in the holder 15 by engaging the protrusions 21, 21 of the decorative board 10 with the fixed blade 1 in the engagement recess 22, and the engagement protrusion 19 of the elastic leg 14 is held in the holder 15. When engaged with the engagement hole 18, the fixed blade holder 15 is fixed to the case 17, so these fixed blades 1
This also makes it easier to assemble the holder 15 into the case 17. When the holder 15 is attached to the case 17, as the elastic legs 14 are expanded outward, the elastic arms 20° Since the reaction force of 20 is directed inward, the fixed blade 1
can be held firmly.

In particular, even if the elastic legs 14 tend to sway laterally due to the vibrations of the movable blade 3, the prevention pieces 23 of the legs 14 act as a tensioning action, so that the sway is effectively prevented.

Furthermore, since the engagement hole 18 is closed by the prevention piece 23, hair debris during shearing is removed from the engagement hole 18 from the case 1.
Intrusion into the drive unit storage space S in 7 is also prevented.

As described above, in this invention, by providing the holder with elastic legs and elastic arms, the elastic legs can be simply attached to the case side, and the elastic force at the time of attachment can be used to create a fixed blade. can be firmly attached to the elastic arm part, and in particular, the wobbling of the holder caused by this elastic locking structure can be prevented by the swing prevention piece provided on the elastic leg part. In addition to positionally regulating the engagement height of the elastic legs,
It has the advantage of blocking the retaining hole on the case side and preventing the intrusion of hair debris.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing the shaving mechanism of the reciprocating electric shaver according to this invention, Fig. 2 is a sectional view showing the assembled state, and Fig. 3 is an explanatory diagram of the main structure before improvement. . 14...Elastic legs, 15...Holder,
16... Connection piece, 17... Case, 1
8... Engagement hole, 20... Fixed blade holding elastic arm, 21... Rocking prevention piece.

Claims (1)

[Scope of utility model registration request] A pair of fixed blade holding elastic arms 20 are provided on the upper surface side of the connecting piece 16.
, 20 in the engagement hole 18 formed in the case 17 on the lower surface side.
, 18, the holder 15 is constructed by integrally forming l pairs of elastic legs 14.
This reciprocating electric shaver is provided with four anti-swing pieces 23 and each of the retaining holes 18 is closed by the anti-swing pieces 23.