JPS6080477A - Hair clippers - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a clipper blade.

It is conventionally equipped with a fixed blade having comb teeth, a movable blade that slides on the upper surface of the fixed blade, a pressing spring that presses the fixed blade and the movable blade, and a base on which the fixed blade is placed. A hair clipper blade is known from U.S. Pat. No. 3,4130,250, but in this hair clipper blade, a pair of pressing springs must be attached one by one to a base, making assembly difficult. The disadvantage is that the pressing spring is partially buried in the base and is fixed to the casing by a screw that fixes the fixed blade, so that the pressing spring is not deformed and the gap between the fixed blade and the movable blade is fixed. In order to clean the hair that has gotten into the blade, it is necessary to remove the screw that fixes the fixed blade, and when this screw is removed, the pressing spring also comes off, making it difficult to use. In order to improve ease of assembly, if a pressing spring is used in which the tips of a row of pressing springs are connected, as described in U.S. Pat. No. 2,306,039, the tips of the pressing springs are connected to each other. Therefore, when one pressing spring deforms, the other pressing spring also deforms in the same direction, and the fixed blade and movable blade come into close contact with each other, making it difficult to cut. The spring is fixed to the fixed blade with a screw, and in order to clean the hair that has gotten between the fixed blade and the movable blade without deforming the pressing spring, the screw must be removed. The disadvantage was that the pressing spring also came off, making it difficult to use.

The present invention was developed in view of the above-mentioned drawbacks, and its purpose is to provide good assembly and sharpness, and to easily clean the hair debris that has gotten between the fixed blade and the movable blade. Our goal is to provide clipper blades that can.

The present invention will be explained below according to the embodiments shown in FIGS. 1 and 2. The base 1 is made of plastic, and has a substantially T-shaped plate-shaped fixed blade 2 having seven comb blades 2a at its tip. The base 1 includes a substantially rectangular plate-shaped base portion 1a that becomes thinner toward the tip, a pair of protrusions 1c and Ic that protrude upward on both sides of the base 1, and a pair of protrusions 1c and Ic that extend toward the comb blade 2a of the fixed blade 2. A pair of second locking protrusions 1d, l protruding from the protrusion IC
d, and a first locking projection 1b that projects between the second locking projections 16 in a direction opposite to the direction in which the second locking projection 1d projects. The fixed blade 2 has a T-shaped narrow part fitted between the second retaining protrusions 1d and ld, and a wide part of the T-shaped part inserted into the 100 diagonal concave part 3.3 provided at the tip of the second retaining protrusion 1d. and the substrate portion 1a and held on the base 1. The movable blade 4 has a comb blade 4a, and in order to slide on the upper surface of the fixed blade 2, a drive rod (not shown) connected to a drive source (not shown) engages a retaining hole 5, and a comb blade 4a is provided in the vicinity of the comb blade 4a. It has a pair of recesses 6.6 into which the tips of pressing springs, which will be described later, fit. The pushing spring 7 has a pair of torsion coil parts 7a, 7a, a rear end 7C connecting the torsion coil parts 7a, 7a, and a pair of torsion coil parts 7a, 7a protruding from the rear end 7C in the opposite direction. Tip 7b, 7
It is formed by b.

A pair of twisted coil portions 7a, 7a whose ends are fixed by a pin 8 whose both ends are supported by protrusions ic, 1c of the base 1.
The tips 7b and 7b of the pressing spring 7 are engaged with the recesses 6.6 of the movable blade 4, and the rear end 7C of the pressing spring 7 is connected to the rear end of the fixed blade 2 at the 1 character 1] narrow part. is being pressed. That is, the pressing spring 7 has the function of pressing and fixing the fixed blade 2 to the base 1 and pressing the movable blade 4 against the fixed blade 2.

As stated in (1), the fixed blade 2 and the movable blade 4 are pressed by the pushing spring 7.
Attach one blade block A to the base 1 via the key jt.
The first retaining protrusion A provided on the base 1 is connected to the diagnostic blade block.
Fit the f'ij 1 b into the retaining hole (not shown) provided in the clipper housing (not shown), and
The retaining protrusion 1d of Jτ2, 1d is attached to the clipper housing [i! Attach the hair clipper housing to the hair clipper housing by fitting the hair removal plate (not shown).

As described above, the clipper blade according to the present invention includes a fixed blade having comb teeth, a movable blade that slides on the upper surface of the fixed blade, a pressing spring that presses the fixed blade and the movable blade, and In a hair clipper blade comprising a base on which a fixed blade is placed, a pair of protrusions lc are formed on both sides of the clipper base 1,
A pressing spring 7 is formed by a pair of twisted coil parts 7a, 7a, an end 7C connecting the front 1: bow twisted coil parts 7a, 7a, and a pair of tips 7b, 7b protruding in the opposite direction, and 1 protrusion 1c.

A pair of torsion coil portions 7a, 7a, which are fixed ends, are penetrated and locked by a pin 8 supported on both sides by the IC, and the tips 7b, 7b of the pressing spring 7 are secured to the movable blade 4. Therefore, the pressing spring can be easily attached to the base, and the assembly is easy to assemble. In addition, since the tips of the pair of coils are independent, the fixed blade and the movable blade reliably come into close contact without affecting each other, resulting in good cutting. In addition, when cleaning the lint that has gotten between the fixed blade and the movable blade, the pressing spring is locked with the bin, so the movable blade can be lifted without the pressing spring coming off the blade block. Since the hair is absorbed by the deformation of the torsion coil portion, the hair debris can be easily cleaned without imparting deformation to the pressing spring in the plastic deformation region where deformation remains in the pressing spring.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the clipper blade of the present invention, and FIG. 2 is an assembled perspective view of the same. 1... Base, IC... Protrusion, 4... Movable blade, 7...
...Press spring, 7a...Torsion coil part, 7b...
Tip of pressing spring, 7C... Rear end of pressing spring, 8...
bottle. Patent applicant Matsushita Electric Works Co., Ltd. Patent attorney Toshimaru Takemoto (and 2 others) Figure 1

Claims (1)

[Claims] 1. A fixed blade having a comb, and #fJ on the upper surface of the fixed blade.
The movable blade that moves, the pressing screw that presses the fixed blade and the movable blade, and the base on which the fixed blade is placed (1 ((
In the hair clipper blade, both sides of the mJ base l (+4
．． A pair of protrusions 1c, 1c are formed on I+, and a pair of twisted coil crystals) 7a, 7=L and i'JiJ are written on the twisted coil portion 7a. A spring 7 is formed by a pair of tips 7b and 7b protruding from the twisted coil portion 78°7a in the opposite direction to the rear end 7C, and A pair of torsion coils i□b7 whose ends are fixed by protrusions 1c and lc of the base 1 and pins 8 whose ends are fixed at both ends.
a, 7a is locked, and the tip of the pressing spring 7 &r1t
7b, A clipper blade whose secret is that 7b is attached to the movable blade 4. 2. Form a recess 6.6 on the movable blade written in UiJ, and insert the tips 7b, 7b of the pressing spring 7 into the recesses 6, 6 VC (fi) on the movable blade 4. N and sun Su A-sen V [Haru tzun σ) Can? 1. The clipper blade described in Section 1.