JPH07312211A - Rechargeable small electric device - Google Patents

Abstract

PURPOSE:To facilitate taking-out of a charging type battery at disposal. CONSTITUTION:In a main body case 1 for storing a charging type battery 7, a case part 10 for constituting its part is slidably mounted across a position where taking-out of the charging type battery 7 is possible and a position where its taking-out is impossible. As the case part 10 is made to slide to a position where it can be taken out, a notched part 22 is formed between opposition faces of the case part 10 and the main body case 1. Twisting force application tool 23 is inserted in the notched part 22 so that the case part 10 can be easily separated from the main body case 1 and the charging type battery 7 can be easily taken out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small electric device having a built-in rechargeable battery, and takes measures to recover the rechargeable battery.

[0002]

2. Description of the Related Art In recent years, rechargeable batteries such as Ni-Cd batteries have become mainstream in rechargeable electric razors and various other small electric devices because they can be repeatedly used as the power source compared to dry batteries. Since it uses harmful substances such as cadmium, it is not preferable to dispose of the whole equipment anywhere to prevent pollution. Therefore, at the time of disposal, it is necessary to remove the rechargeable battery from the device and collect it.

[0003]

However, unlike the dry battery, the rechargeable battery cannot be easily taken out from the device. If the contact terminal plate such as a coil spring or leaf spring is used as the rechargeable battery is stored in the device,
The contact resistance increases with the lapse of time and the characteristic of the rechargeable battery that a large current can be taken out cannot be exhibited. Therefore, the rechargeable battery must be firmly connected and fixed to the circuit in the device by soldering or the like. In such a mounted state of the rechargeable battery, the rechargeable battery cannot be taken out from the device unless the soldered portion is removed or the lead wire is cut with a blade or the like.

Further, since it is difficult to know from which part of the device the rechargeable battery is housed, it is necessary to break the entire device when taking it out, but such destruction is not an easy task. In particular, when the rechargeable battery is taken out by an actual general user, not by a service person of the equipment, it does not have a special removing jig, which is extremely difficult.

The present invention solves the above-mentioned conventional problems,
The purpose of the present invention is to facilitate the taking out of the rechargeable battery and thus contribute to the facilitation of the recovery work.

[0006]

In the rechargeable small-sized electric device of the present invention, a main body case accommodating a rechargeable battery is provided with a part of the case constituting a part of the rechargeable battery. And a twist for separating the case part from the main body case between the facing surfaces of the case part and the main body case while sliding the case part to the retrievable position. It is characterized in that a notch portion that allows insertion of the force application tool is formed.

[0007]

[Function] When the rechargeable battery is taken out from the device, if a part of the case is slid to the rechargeable battery take-out position, a notch is formed between the opposing surfaces of the part of the case and the main body case. A part of the case can be separated from the main body case by inserting the twisting force imparting tool, so that the rechargeable battery can be easily taken out. If a part of the case is slid to a position where the rechargeable battery cannot be taken out, the notch is not formed, so that the case is not accidentally or accidentally separated.

[0008]

【Example】

(First Embodiment) A first embodiment in which the present invention is applied to a rechargeable electric shaver will be described with reference to FIGS. In FIG. 1 and FIG. 2, a rectangular tubular body case 1 of this electric razor has a razor blade unit 2 on its upper part.
And a charging plug 3 that can be operated to move in and out, respectively. Inside the body case 1, a razor blade driving motor M (see FIG. 5), a wiring board 4 and the like are housed and arranged. A case opening portion 5 is opened in the main body case 1 over two surfaces of one side surface of the case 1 and a front surface or a rear surface intersecting with the one side surface. In the opening 5, a switch operating / combining type lid 10 consisting of a switch operating button 6 itself having an L-shaped cross section and forming a part of the body case 1 is in a switch on position (see FIG. 3) and an off position (see FIG. 2). And (see FIG. 4).

On the wiring board 4, a pattern corresponding to the circuit shown in FIG. 5 is formed, and a rechargeable battery 7 such as a Ni-Cd battery, a transformer 8 and a switch 11 are mounted. As shown in FIG. 1, the rechargeable battery 7 has a negative / anode terminal 12.1.
3 is connected and fixed to the lead pieces 14 and 15 on the substrate 4 by soldering or the like. At least the rechargeable battery 7 and the switch 11 on the wiring board 4 are arranged so as to face the case opening 5. The rechargeable battery 7 is detachably attached to the wiring board 4. For example, at least the peripheral portion 4a of the terminal connecting portion of the wiring board 4 that is connected to the terminal of the rechargeable battery 7 is folded along the fold line 16 formed by a large number of small holes or grooves.

The cover 10 also serving as a switch and constituting the case of the main body case 1 and the switch 1 on the wiring board 4
Regarding the relationship with 1, the operator 18 protruding from the switch 11 by the switch operating lip 17 provided on the inner surface side of the lid 10
When the lid 10 slides to the ON position, the switch operation lip 17 turns on the operator 18, and when the lid 10 slides to the OFF position, the switch operation lip 17 turns off the operator 18. I am trying to do it.

Further, between the lid 10 forming a part of the main body case 1 and the main body case 1, a means having a function of not removing the lid 10 in the switch-on position but first removing it in the switch-off position is provided. To be That is,
As for the means, as shown in FIGS. 1 and 4, at least a pair of elastically deformable retaining claws 19 and 19 are provided on the inner surface of the lid 10 forming a part of the main body case 1, while The retaining claw 1 is placed in the case opening 5.
A pair of left and right wall pieces 20 on which 9 and 19 disengage due to this elastic deformation
By providing 20 facing each other, the lid 10 can normally slide the retaining pawls 19 along the inner side of the wall piece 20 in the vertical direction between the ON position and the OFF position while preventing slippage. . When the lid 10 is in the off position, it can be removed. For that purpose, as shown in FIGS. 2 and 4, a notch 22 for removing the lid is provided on one side below the opening of the case opening 5. As shown in FIG. 4, a twisting force imparting tool 23 such as a coin is inserted into the notch 22 and twisted in the direction of arrow A so that the lid 10 engages the retaining claws 19 with the wall pieces 20. I've solved it and made it come off. Incidentally, when the lid 10 is in the ON position, even if the twisting force imparting tool 23 is inserted into the notch portion 22, the lid 10 cannot be twisted, so that the lid 10 cannot be removed.

Now, in order to take out the rechargeable battery 7 from this device, the lid 10 which constitutes a part of the case 1 of the main body is shown in FIG.
And as shown in FIG. 4, after sliding the switch 11 to the off position to turn off the switch 11, the twisting force imparting tool 23 is inserted into the notch 22 and the lid 10 is pryed as described above, so that the lid 10 is closed. Remove. Thus, the rechargeable battery 7 can be taken out from the case opening 5 by breaking the wiring board 4 along the break line 16. Then switch 1
Since No. 1 is off, breaking work can be done safely without the risk of sparks. Therefore, the off position of the lid 10 that forms a part of the case 1 of the main body case is the rechargeable battery 7.
Of the rechargeable battery 7, and the ON position of the lid 10 is the position of the rechargeable battery 7 that cannot be taken out.

(Second Embodiment) FIG. 6 shows a second embodiment of the present invention. This embodiment shows a modification of the position setting of the cutout portion 22 of the first embodiment, and the cutout portion 22 constitutes the case 10 of the main body case 1.
Is provided on a part of the sliding wall surface 1a with respect to the inner surface of the
Is covered by the lid 10 when the lid 10 is in the on position, that is, the rechargeable battery 7 cannot be taken out, and is exposed from the lid 10 only when the lid 10 is slid to the off position, that is, the rechargeable battery 7 can be taken out. The lid 10 can be opened by inserting the twisting force imparting tool 23 therein. Other configurations are similar to those of the first embodiment.

(Third Embodiment) FIG. 7 shows a third embodiment of the present invention. This embodiment is different from that of the first embodiment in the operation form of the switch and the structure of the lid 10. That is, in this embodiment, the switch operation button 6 in the push operation mode is adopted, and the cover 10 holds the button 6 together with the switch 11 by the lid 10.
It is composed of. Regarding the lid attachment / detachment control means provided between the lid 10 and the main body case 1, the lid 10 is
By engaging the elastically deformable retaining claw 19 protruding from the case of the switch 11 with the engaging hole 25 of the lid support piece 24 protruding into the case opening 5 of the main body case 1, the case opening 5 is formed. It is kept closed. When the switch operation button 6 projects from the lid 10 in the off state, the button 6 is used as a knob and the lid 10 is strongly pulled, so that the retaining claw 19 can be removed from the engagement hole 25 and removed from the case opening 5. it can. However, in the switch-on state, the switch operation button 6 sinks to the lid 10 side and the amount of protrusion thereof decreases, so this cannot be used as a knob, and the lid 1
The removal of 0 is impossible. Other configurations are similar to those of the first embodiment.

(Other Embodiments) As means for removing the rechargeable battery 7 from the wiring board 4, in addition to the above embodiment, for example, a lead wire for connecting the terminal of the rechargeable battery 7 and the pattern of the wiring board 4 or The lead piece or the like may be weakly structured by perforations and the like, and the rechargeable battery 7 may be torn off by pulling the rechargeable battery 7 from the wiring board 4. Further, the present invention can be similarly applied not only when one rechargeable battery 7 is mounted on the wiring board 4 but also when two or more rechargeable batteries 7 are mounted. Further, the rechargeable battery 7 is not limited to being directly mounted on the wiring board 4, but can be similarly applied to a normal accommodating form such as one that is sandwiched by holding ribs protruding from the inner wall of the main body case 1.

[0016]

According to the rechargeable small electric device of the present invention,
By sliding a part of the case that forms part of the body case to the rechargeable battery removal position, a notch is formed, and by inserting a twisting force imparting tool into this notch, the case part is removed from the body case. Since they can be separated, the rechargeable battery can be easily taken out from the main body case without doing unreasonable things such as breaking the main body case unnecessarily. If a part of the case is slid to the position where the rechargeable battery cannot be taken out, the notch is not formed, so that it is possible to prevent a problem such as accidentally or accidentally separating the part of the case and causing damage. .

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of a rechargeable small-sized electric device of a first embodiment with a lid removed.

FIG. 2 is a perspective view of a rechargeable small-sized electric device according to the first embodiment.

FIG. 3 is a side view showing the rechargeable small-sized electric device according to the first embodiment with the lid in the ON position.

FIG. 4 is a partial cross-sectional view showing how the lid of the rechargeable small-sized electric device of the first embodiment is pry open.

FIG. 5 is an electric circuit diagram of the rechargeable small-sized electric device of the first embodiment.

FIG. 6 is a perspective view of a part of the rechargeable small electric device of the second embodiment.

FIG. 7 is a perspective view showing a part of a rechargeable small-sized electric device of a third embodiment with a lid removed.

[Explanation of symbols]

 1 Body Case 5 Case Opening 7 Rechargeable Battery 10 Lid (Part of Case) 22 Notch

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[Procedure amendment]

[Submission date] July 31, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Delete

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 7

[Correction method] Delete

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

[Correction method] Delete

Claims (1)

[Claims] 1. A main body case accommodating a rechargeable battery, wherein a part of the case forming a part of the main body case is slidably mounted between a retrievable position and a non-removable position of the rechargeable battery. And a main body case, a notch portion is formed between the opposing surfaces of the main body case and the main body case so that a twisting force imparting tool can be inserted to separate the part of the case from the main body case in a state where the case portion is slid to a position where it can be removed. Rechargeable small electric equipment characterized by being.