JP3014320B2 - Lock structure for blade swing type razor with blade assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock structure in which a blade-assembled head swing type razor can take a locked state in which a swingable state is maintained and a non-locked state in which the swingable state is maintained. Things.

[0002]

2. Description of the Related Art In a conventional blade-assembled head swing-type razor disclosed in Japanese Patent Application Laid-Open No. 60-90586, there is no lock structure for disabling the swing. , The user is always forced to use it in the unlocked state. However, some users do not like the swing function. Accordingly, the blade-assembled head swing type razor disclosed in JP-A-7-227486 has a lock structure. In that case, it is possible to switch between the locked state and the unlocked state according to the user's preference.

By the way, in the razor in which only the blade body assembling head is separated from the holder and disposable as in each of the above-mentioned razors, and in other razors in which the blade body assembling head is disposable together with the holder, it may be thrown away after being used a plurality of times. In many cases, however, it is often difficult for a user to distinguish between a new razor or a razor that has been used even once.

An object of the present invention is not only to provide a lock structure to selectively use the razor according to the user's preference, but also to make effective use of the lock structure so that a new razor can be distinguished. ing.

[0005]

After Means for Solving the Problems] Your facilities form of drawing with the aid of codes (Figure 1-3) to illustrate the present invention. A razor according to the present invention is configured as follows.

[0006] In the blade-assembled head swing type razor, swinging support means (3) is provided for the tip of the holder (1).
Thereby, the blade body assembling head (2) is swingably supported. The holder (1) and the blade body assembling head (2) have lock portions (11, 11) that engage with each other so that the blade body assembling head (2) cannot swing with respect to the holder (1).
12) that it has an installed. Of the locking portion of the head (2) assembled the holder (1) and blade body, the lock of the holder (1)
The part is a lock pin protruding from the tip of the holder (1).
(11). Lock part of blade assembly head (2)
Indicates that the blade assembly head (2) cannot swing when locked
This lock pin (11) is inserted so as to maintain the state.
Lock hole (12). This lock pin (11)
Can swing the blade assembly head (2) in the unlocked state
Part of the lock pin (11) or
Has a breakable part (11a) for removing all
I have.

[0007]

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A razor according to an embodiment of the present invention will be described below with reference to the drawings. This razor includes a holder 1 and a blade assembly head 2 as shown in FIG.
As shown in the figure, the blade body assembling head 2 is supported by the swing support means 3 on the tip of the holder 1. The holder 1 and the blade body assembling head 2 (excluding the blade body not shown) are formed of plastic.

[About the swing support means 3] The swing support means 3 includes a rotation support section 4 and a rotation restriction section 5 described below. (Rotation support part 4) A pair of support arms 6 are protruded from the tip of the holder 1. Guide portions 7 are provided on both support arms 6.
Are extended in an arc shape, and stopper portions 7a and 7b are formed at both ends of the arc surface of the guide portion 7. Both sides of the lower surface of the blade assembly head 2 (both sides in the direction in which the cutting edge of the blade extends on the lower surface opposite to the upper surface where the blade (not shown) is exposed)
Has a hook-shaped support arm 8 protruding therefrom. The two support arms 8 are engaged with the two guides 7, and the two stoppers 7a,
7b, the blade body assembling head 2 is within a predetermined angle range in contact with the blade body 7b.
Are rotatably supported by the tip of the holder 1.

(Rotation restricting portion 5) A pair of cantilever plate spring portions 9 (elastic bodies) project from the front end of the holder 1 between the two support arms 6, and the front end of the plate spring portion 9 is provided. Is formed with a forked pressing portion 9a. A pressure receiving portion 10 is formed at the center of the lower surface of the blade assembly head 2 between the two support arms 8. The bifurcated press contact portions 9a of the two leaf spring portions 9 are pressed against the pressure receiving portions 10, and the blade body assembling head 2 is urged downward (toward the blade tip side of a blade body (not shown)).

[Regarding the Locking Part of the Holder 1 and the Blade Assembling Head 2] (Locked State) The two leaf spring parts 9 are provided at the tip of the holder 1.
A single cantilever lock pin 11 protrudes between the lock pins 11, and a thin breakable portion 11 is provided at a base end of the lock pin 11.
a is formed. A lock hole 12 is formed in the pressure receiving portion 10 of the blade body assembling head 2. As shown in FIGS. 2 (a), 3 (a) and 3 (c), in the locked state in which the tip of the lock pin 11 is inserted into the lock hole 12, the state in which the blade assembly head 2 cannot swing is maintained. Is done.

(Unlocked state) When the lock pin 11 is pressed and the breakable portion 11a is folded in the locked state, as shown in FIG. 3B, a portion of the lock pin 11 closer to the tip end than the breakable portion 11a. Is removed. Therefore, the blade assembly head 2 can be turned.

This embodiment has the following features (a) to (d) (other than other technical ideas described later). (A) A user who does not like the swing function can use the lock pin 11 in the locked state where the breakable portion 11a of the lock pin 11 is not broken.

(B) A user who needs the swinging function can use the device in the unlocked state in which the lock pin 11 is removed by breaking the breakable portion 11a. Normal,
Since the user will break the lock pin 11 only when using the razor, it is considered that the breakage of the lock pin 11 means that the lock pin 11 has been used even once. Therefore, the state of the lock pin 11 (whether or not the lock pin 11 is removed)
You can easily distinguish whether it is a new razor or not,
The lock structure can be effectively used for the determination.

(C) The user who needs the swinging function can set the lock pin 11 in the unlocked state by simply operating the breakable portion 11a. (D) The lock structure can be configured with a simple structure in which the lock pin 11 protruding from the holder 1 is simply inserted into the lock hole 12 of the blade assembly head 2.

[Other Embodiments] In addition to the above-described embodiment , a part or all of the lock pin may be used.
You may comprise so that it may be broken and removed.

The technical idea understood from [other technical ideas] implementation embodiment describes an effect (other than claims).

(A) The swing support means 3 according to the first or second aspect of the present invention uses a pair of support arms 6 provided at the tip of the holder 2 to rotate both sides of the blade assembly head 2 within a predetermined angle range. The rotation support portion 4 that is supported so as to be able to rotate and the elastic body (leaf spring 9) provided on the holder 2 are pressed against the blade body assembling head 2 to rotate the blade body assembling head 2 in one direction. Unit 5. Therefore, the swing support means 3 has a simple structure.
Can be configured.

[0019]

According to the blade assembling head razor of the present invention, not only can the oscillating function be used as desired, but also whether or not the lock pin (11) is removed. Thus, it can be easily distinguished whether or not a new razor, and the lock structure can be effectively used for the determination. In addition, the breakable part (11a)
Remove the lock pin (11) with a simple operation just by folding
Unlocked and locked.
The structure can be simplified.

[0020]

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a blade assembly head swinging razor according to the present embodiment.

2 (a) is a perspective view in which the razor of FIG. 1 is assembled and locked, and FIG. 2 (b) is an assembled perspective view in which the razor is unlocked.

3 (a) is a partial sectional view taken along line XX of FIG. 2 (a), FIG. 3 (b) is a partial sectional view taken along line YY of FIG. 2 (b), and FIG. FIG. 3A is a partial sectional view taken along line ZZ of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Holder, 2 ... Blade body assembling head, 3 ... Swing support means, 11 ... Lock pin (lock part), 11a ... Breakable part, 12 ... Lock hole (lock part).

Claims (1)

(57) [Claims] 1. A holder (1) of the tip portion of the blade assembly head (2) swivelably supported by oscillating the support means (3) relative to this holder (1) and blade assembly head ( the 2), the holder (1) the blade assembly head (2) so as to swing impossible to, in razor provided lock portion (11, 12) which engage each other, the holder (1) And lock of blade assembly head (2)
Of the holder (1), the lock portion of the holder (1)
A lock pin (11) protruding from the tip, and a blade body set
The locking part of the mounting head (2) is locked and the blade body is assembled
So that the head (2) can not swing
A lock hole (12) into which a lock pin (11) is inserted.
Ri, the lock pin (11) is assembled blade in a non-locked state
Lock the head (2) so that it can swing
Breakable to remove part or all of pin (11)
A lock structure in a blade-assembled head swing-type razor having a function part (11a) .