JPS6234522Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric shaver trimmer device.

Conventionally, as shown in FIG. 4, a trimmer device is known which is composed of a trimmer board 4, a fixed blade 5, a movable blade 6, a trimmer spring 8, and a trimmer cover 9. A trimmer cover 9 covers the bottom of the trimmer device to prevent hair debris from entering the trimmer device.
The front surface of the trimmer board is bent toward the trimmer substrate side to form a hair intrusion prevention wall 9a, and this wall 9a is placed close to the movable blade to prevent hair from entering.
However, in this case, problems occurred during assembly. That is, insert one end of the trimmer cover 9 in the width direction into the trimmer cover mounting hole (corresponding to 4a in Fig. 1) on the trimmer board, bend the trimmer cover 9 up and down, and similarly insert the other end into the trimmer cover mounting hole on the trimmer board. If you try to insert the trimmer into the
Because of a and 9b, the trimmer cover is too rigid, and the trimmer cover does not bend up and down as expected.
Due to difficult assembly or stress during assembly, the walls 9a and 9b may be deformed into waves or may damage the trimmer substrate.

An object of the present invention is to eliminate such drawbacks, provide a trimmer device that can be assembled easily and reliably, and is highly reliable against the intrusion of hair.

The gist of the present invention is to provide a trimmer board installed in a case, a fixed blade disposed on the inner and lower surfaces of the trimmer board, and a movable blade disposed below the fixed blade in close contact with the movable blade. The trimmer cover is arranged below the plate spring and supports the plate spring, and the trimmer cover has a trimmer cover that engages with engagement portions provided on both side walls of the trimmer substrate on both side walls of the trimmer cover. and an engaged portion that is held by the trimmer substrate, and a hair debris intrusion prevention wall that is bent in the vicinity of the blade portion of the movable blade in a direction approaching the trimmer substrate is provided on the front surface of the leaf spring. A trimmer device for an electric shaver, characterized in that the tip of the trimmer cover is located in a direction recessed from the hair intrusion prevention wall of the leaf spring when viewed from the blade side of the movable blade. be.

Hereinafter, the present invention will be explained with reference to the drawings, but parts not directly related to the present invention will be simplified or omitted.

FIG. 1 is an external view showing an embodiment of the present invention.
2 is a sectional view of the trimmer device of FIG. 1 seen from the front, and FIG. 3 is a sectional view of the trimmer device of FIG. 2 seen from the side. In each figure, 1 is a case, 2 is an outer cutter frame with an outer cutter attached, 3 is an outer cutter, 4 is a trimmer board,
Holes 4 for locking the trimmer cover 9 on both end faces
In addition, a rotation fulcrum 4b for protruding and retracting operations relative to the case 1, and a pin 10 for fixing the fixed blade 5 to the trimmer base plate 4 are fixed to the case 1. Reference numeral 6 denotes a movable blade, to which a drive plate 7 for driving the movable blade 6 is fixed so that it can be engaged with and detached from a well-known vibrator (not shown), and also engages with the pin 10 to drive the movable blade 6. In cooperation with the pin 10, it performs linear reciprocating motion. 8 is a plate spring, and the movable blade 6 is attached to the spring portion 8a.
is formed so as to be in pressure contact with the fixed blade 5, and there is also a wall 8 for preventing hair intrusion that stands up on the front side of the trimmer device.
b is bent toward the trimmer substrate 4 side. Reference numeral 9 designates a trimmer cover 9 whose both end surfaces are bent and engaged with holes 4a provided in both side walls of the trimmer board 4. The tip of the trimmer cover 9 is formed at a position farther back than the spring portion 8a when viewed from the blade side. For assembly, the fixed blade 5 is placed on the trimmer board 4, and the fixed blade 5 is fixed to the trimmer board 4 with the pin 10. On the other hand, a driving plate 7 is fixed to the movable blade 6, and this block is attached to the pin 10.
to fit. A leaf spring 8 is placed on top of these. Then, move the trimmer cover 9 in the longitudinal direction (second direction).
While applying force in the left-right direction in the figure) and bending the trimmer cover 9 downward in FIG. 2, one of the ends of the trimmer cover 9 is engaged with the hole 4a of the trimmer board 4, and the other end is similarly bent. Assemble. At this time, unlike the conventional trimmer cover shown in Fig. 4, the present invention does not have a wall on the front part and only has a low wall on the back, so the rigidity is low and the downward deflection during assembly is reduced. It is easy to apply, and the wall 9a in FIG. 3 and the hair debris intrusion prevention wall 8b will not be abnormally deformed even if they are bent. This is because the trimmer cover 9 has only a wall 9a and the leaf spring 8 has a wall 8b for preventing hair from entering, but since the trimmer cover 9 and the leaf spring 8 are separate bodies, when bending them as described above, both This is because deformation can be limited to only the trimmer cover 9, since slippage easily occurs between the trimmer cover 9 and the trimmer cover 9.

The above description has been about a type in which the leaf spring 8 and trimmer cover 9 are separate bodies, but this is not the only option. Even if the leaf spring 8 and trimmer cover 9 are fixed in several places by spot welding or the like, can produce similar effects.

As described above, according to the present invention, the hair scraps cut off by the cooperation of the fixed blade 5 and the movable blade 6 are surely prevented from entering the interior of the trimmer device by the hair debris intrusion prevention wall 8b of the plate spring 8. It can be prevented.
Further, according to the present invention, since the normally required plate spring 8 can prevent the intrusion of hair, it also contributes to making the mechanism smaller, thinner, and lower in cost.

Furthermore, in the present invention, as described above, both the leaf spring 8 and the trimmer cover 9 are configured with separate walls, so in addition to the above-mentioned effects, the shape of the trimmer cover made of a thin plate is simplified, It is possible to improve dimensional accuracy and mass productivity. In this method, as shown in FIG. 3, when viewed from the blade portions of the fixed blade 5 and movable blade 6 (the right end in FIG. 3), the tip of the trimmer cover 9 is located closer to the wall for preventing hair intrusion of the leaf spring 8. However, since it is located in a direction deeper than the blade portion, it has the effect of allowing hair to fall off smoothly. If this arrangement is reversed (if the right end of the trimmer cover is located closer to the blade than the hair intrusion prevention wall 8b), hair will easily land on this part of the trimmer cover, which is preferable from an aesthetic and hygienic point of view. do not have.

The above structural requirements are one of the major points to consider when implementing the present invention in which the leaf spring 8 constitutes the hair debris intrusion prevention wall 8b and the trimmer cover 9 is disposed below the leaf spring 8. It is one.

[Brief explanation of the drawing]

Fig. 1 is an external view showing one embodiment of the present invention;
The figure is a sectional view of the trimmer device shown in Fig. 1 seen from the front, Fig. 3 is a sectional view seen from the side of Fig. 2, and 4th fig.
The figure is a cross-sectional view of a conventional trimmer device viewed from the side. In all diagrams, 1... Case, 2... Outer blade frame, 3...
Outer blade, 4...trimmer board, 5...fixed blade, 6...
...Movable blade, 9...Trimmer cover.

Claims (1)

[Scope of utility model registration request] A trimmer board attached to the case, a fixed blade arranged on the inner and lower surface of the trimmer board, a movable blade arranged closely below the fixed blade, and a force of adhesion between the movable blade and the fixed blade arranged below the movable blade. The trimmer cover has a trimmer cover disposed below the plate spring to support the plate spring, and is held on both side walls of the trimmer cover by engaging with engaging portions provided on both side walls of the trimmer base plate. an engaged portion is provided, and a hair debris intrusion prevention wall is provided on the front surface of the leaf spring and is bent in a direction approaching the trimmer substrate near the blade portion of the movable blade. . A trimmer device for an electric shaver, characterized in that the tip of the trimmer cover is positioned in a direction recessed with respect to the hair intrusion prevention wall of the leaf spring when viewed from the blade side of the movable blade.