JPH0747814Y2 - Thin AC adapter - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin AC adapter which converts AC into DC and supplies DC power to various electronic devices.

[0002]

2. Description of the Related Art There are various types of AC adapters of this type. Among them, there is one in which a blade for inserting an outlet is configured to be housed / protrudable in a case. FIG. 6 shows an example of the conventional art, and in this case, a pair of blades 2 arranged at a predetermined interval.
A'and 2B 'are provided along the width direction a of the case 1'.

[0003]

In use, these blades 2A 'and 2B' are inserted into an outlet C as shown in FIG. 7, but at this time, they are inserted carelessly at an oblique position. It may happen. In this case, the blades 2A 'and 2B' are provided in the width direction a of the case 1 ', and the width of the case 1'is thin, but the width between the blades is a predetermined width. Since the blade 2A 'is provided so as to project from a position near the side surface 1b' of the 1'and has a predetermined width, when the AC adapter is attached to or detached from the outlet C, a finger is put on the blade 2 '.
There is a problem that it is easy to come into contact with A ', which is not preferable in terms of safety.

The present invention has been proposed in view of the above points, and an object thereof is to provide a thin AC adapter which is improved in safety and is also easy to use. .

[0005]

The present invention is a thin AC adapter in which a blade body 2 composed of a pair of blades 2A and 2B is freely retractable with respect to a box-shaped case 1 via a rotating mechanism. The pair of blades 2A and 2B are arranged in a direction orthogonal to the width direction a of the case 1, and a blade accommodating portion 4 is formed on the side surface 1C of the case half 1A of the case 1, and the blade accommodating portion 4 is formed. Is the first groove
A blade accommodating portion 4a, a second blade accommodating portion 4b, and a blade that communicates with the second blade accommodating portion 4b and is accommodated with the tip of one of the accommodated blades 2B projecting and the blade 2B is removable. It is configured to have an extraction hole 4c. Further, the rotating mechanism includes a rotating body 3 in which the base of the blade body 2 is embedded, and both side surfaces 3 of the rotating body 3.
a substantially rectangular positioning member 5 provided on each a, a rotary shaft 6 projecting from the center thereof, a pair of bearing plates 9 rotatably supporting the rotary shaft 6, and projectingly provided on both sides of the bearing plate 9. In addition, the contact piece 10 is in elastic contact with the positioning member 5, and the bearing plate 9 and the contact piece 10 are integrally formed with the case half body 1B. further,
The rotating mechanism includes a rotating body 3 in which the base of the blade body 2 is embedded, a substantially rectangular positioning member 5 respectively provided on both side surfaces 3a of the rotating body 3, and a rotating shaft 6 protruding from the center thereof, A pair of bearing plates 9 that rotatably support the shaft 6 and are integrally formed on the inner surface of the case half body 1B.
And a substantially U-shaped contact piece 10A which is provided outside the bearing plate 9 and is in elastic contact with the positioning member 5 and is a separate component from the case half body 1B. is doing.

[0006]

According to the present invention, a pair of blades 2 are separated from each other.
By mounting A and 2B in a direction orthogonal to the width direction a of the box-shaped case 1 including the case halves 1A and 1B having a two-part structure, the case side surfaces 1a and 1b are retracted and the side portions of the blades 2A and 2B are retracted. So that 2a and 2b are located,
Moreover, since the widths of the blades 2A and 2B are also orthogonal to the case side surfaces 1a and 1b, it is difficult for the fingers to come into contact with
Improves safety. Further, when the blade is housed, the blade take-out hole 4c communicating with the housing part and accommodating the tip part of the one blade 2B is formed so that the blade body 2 in the housed state can be easily projected to the outside during use. To improve usability. The rotating mechanism of the blade body 2 includes a rotating shaft 6 of the blade body 2.
Is provided with a substantially rectangular positioning member 5 having a click mechanism at the time of rotation, and a contact piece 10 elastically contacting the positioning member 5 is integrally formed on the inner surface of the case half body 1B.
When the positioning member 5 is pressed by the contact piece 10 and is moved from the corner to the side, the positioning member 5 is pivotally clicked to be positioned. Further, as the contact piece, the contact piece 10A made of another durable part is used to improve the durability.

[0007]

Embodiment 1 FIG. 1 shows a first embodiment of the present invention. In the figure, 1 is 2
It is a case made of a molded product obtained by joining case halves 1A and 1B having a divided structure, and various electronic circuit parts (not shown) for converting alternating current to direct current are incorporated therein as is well known. Reference numeral 2 denotes a blade body composed of two blades 2A and 2B spaced apart from each other. The base of the blade body 2 is embedded in a rotating body 3 made of a molded product, and two blades are provided in the width direction a of the case 1. The arrangement directions of 2A and 2B are arranged so as to be orthogonal to each other. Therefore, the side portions 2a and 2b of the blades 2A and 2B are located inside slightly apart from the case side surfaces 1a and 1b.

If the rotating body 3 is provided inside the case 1 and is clicked by a rotating mechanism and the state where the blade body 2 projects from the end face 1c is 180 °,
90 °, which is the position where the blade body 2 projects from the side surface,
It is freely rotatable while being selectively positioned at three 0 ° positions in the stored state. Details of this mechanism will be described later.

However, the blade housing 4 is formed on the side surface 1a of the case half 1A of the case 1 so that the blade body 2 can be housed in the blade housing 4 at the position of 0 °. There is. This blade storage 4
Is composed of a groove-shaped first blade accommodating portion 4a for accommodating one blade 2A and a groove-shaped second blade accommodating portion 4b for accommodating the other blade 2B, and the tip of the second blade accommodating portion 4b is a fingertip. It communicates with the blade take-out hole 4c which has a substantially circular shape according to the shape, and the tip of the blade 2B is positioned so as to project inside the blade take-out hole 4c during storage.

Therefore, when the blade body 2 is to be taken out when the blade is housed, the tip of the index finger is inserted into the blade take-out hole 4c, and the tip of the blade 2B is touched and rotated outward. The blade body 2 can be easily taken out. In this case, the bottom 4d of the blade take-out hole 4c is inclined so that the bottom becomes deeper toward the side of the second blade accommodating portion 4b, so that it is easy to put in a finger and take out the blade 2B easily. 2 shows a state in which the blade body 2 is housed in the blade housing portion 4 of the case 1.

In this embodiment, however, when the blade body 2 is mistakenly inserted into the outlet C at an oblique position as shown in FIG. 3, the thin side of each blade 2A, 2B is located outside the part held by hand. Since the parts 2a and 2b face each other, there is little risk of contact.

Embodiment 2 FIG. 4 shows an example of the rotating mechanism of the blade body 2. That is, the base of the blade body 2 is embedded in the rotating body 3,
A substantially rectangular positioning member 5 is provided on both side portions 3a of the rotating body 3, and a pin-shaped rotating shaft 6 is provided substantially at the center thereof.
Is projected. In addition, a rotating body storage portion 7 is formed at a corner inside the other case half body 1B.

The rotary member housing 7 is formed at the end of the end face 1c of the other case half 1B at the 180 ° position, and has a notch 8 for protruding the blade body 2 at the 180 ° position and the like. A pair of bearing plates 9 for receiving the shaft 6
And a plate-shaped contact piece 10 which is provided on both sides of the bearing plate 9 so as to be spaced apart from each other, and which is in elastic contact with the positioning member 5. Notches 8 are also formed on the end surface and the side surface of one case half body 1A as shown in FIGS. In addition, the contact piece 1 on the other case half 1B side
0 and the bearing plate 9 are integrally molded with the case half body 1B, and the contact piece 10 is a molded product, and its material has a spring property.

When assembling the blade main body 2,
When the base of the rotary shaft 6, that is, the portion between the side surface 3a of the rotary body 3 and the positioning member 5 is supported by the bearing portion formed of a semicircular cutout formed in the substantially central portion of the bearing plate 9, the positioning member 5 Makes elastic contact with the contact piece. In this case, each contact piece 10 is pushed to the outermost side in a state in which the arcuate corners of the positioning member 5 on the opposite diagonal lines are in contact with both contact pieces 10, and from this state, the rotating body 3 is rotated. When the contact piece 10 is rotated and the contact state with the contact piece 10 is switched from the corner to the adjacent side, a restoring force of the contact piece 10, that is, a reaction force acts, so that the positioning member 5 pivots by clicking, and the contact piece 10 is rotated. 10 and the side edges are elastically contacted and positioned.

In the case of FIG. 4, one case half 1
In the state where the blade body 2 projects from the side surface 1a of A, when the blade body 2 is stored at 0 °, the blade body 2 is rotated by 90 °. Further, in the illustrated state, when the contact piece 10 and the positioning member 5 are further rotated to the right side, the contact between the contact piece 10 and the positioning member 5 is clicked with respect to the side of the corner portion to be in a protruding state at the rotation position of 180 °. . In this example, the positioning can be performed easily with a click feeling without using an expensive separate member such as a leaf spring.

Embodiment 3 FIG. 5 shows another example of the rotating mechanism of the present invention. This example is characterized by using a pair of substantially U-shaped contact pieces 10A made of polyacetal having durability, that is, wear resistance and fatigue resistance, instead of the above-mentioned contact pieces 10. That is, the case 1 is usually formed of acrylonitrile-butadiene-styrene or polyphenylene oxide, and since this resin is soft, if the contact piece 10 is integrally formed with the case half body 1B as in the above-described embodiment, it may be used for a long time or If frequently used, the contact piece 10 may be damaged or worn, and the desired operation may not be obtained. Therefore, a separate member, which is cheaper than a spring material, is used to withstand use. Is.

When installing, the bearing plate 9
A projecting piece accommodating portion 12 defined by at least one rib-shaped partition plate 11 projecting around the outer periphery of the projecting piece is formed, and the bottom portion of the projecting piece 10A is tightly fitted and fixed thereto. This is similar to the example in which the simple configuration such as “Yes” is used.

[0018]

As described above, according to the present invention of claim 1, since the blade body 2 is provided in the direction orthogonal to the width direction a of the case 1, the exposed portion of the blade body 2 is small when the outlet is obliquely inserted. Therefore, the risk of touching with a finger is reduced, the safety is improved, and the case 1 is formed with the blade take-out hole 4c communicating with the second blade storage section 4b of the blade storage section 4. Two
It is easy to take out and is easy to use. According to the second aspect of the present invention, as a rotating mechanism, a substantially rectangular positioning plate 5 is provided on the rotating portion 3 of the blade body 2, and the inner surface of the case half body 1B is elastically contacted with the positioning plate 5 to perform a click operation. The piece 10 is provided, and a click feeling can be given at the time of use with a simple configuration without using an expensive separate component such as a leaf spring, which is convenient. Further, in the third aspect,
Since the contact piece 10A is a separate member having wear resistance and fatigue resistance, it has an effect of improving durability.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a perspective view of the blade body according to the first embodiment when the blade body is housed.

FIG. 3 is an explanatory diagram showing an example of a usage state of the first embodiment of the present invention.

FIG. 4 shows an example of a blade rotating mechanism of the present invention.

FIG. 5 is another example of the blade rotating mechanism of the present invention.

FIG. 6 is a perspective view of a conventional example.

FIG. 7 is an explanatory diagram of an example of a usage state of a conventional example.

[Explanation of reference numerals] 1 case 1A, 1B case half body 2 blade body 2A first blade 2B second blade 3 rotating body 4 blade storage section 4a first blade storage section 4b second blade storage section 4c blade extraction hole 5 positioning member 6 Rotating Shaft 7 Rotating Body Storage Section 8 Notch Section 9 Bearing Plate 10 Contact Piece 11 Partition Member 12 Contact Piece Storage Section C Outlet

Claims (3)

[Scope of utility model registration request] 1. A thin AC adapter in which a blade body (2) consisting of a pair of blades (2A), (2B) is capable of retracting into and out of a box-shaped case (1) through a rotation mechanism. The pair of blades (2A) and (2B) are arranged in a direction orthogonal to the width direction a of the case (1), and the side surface (1C) of the case half (1A) of the case (1).
A blade accommodating portion (4) is formed in the blade accommodating portion (4). The blade accommodating portion (4) includes a groove-shaped first blade accommodating portion (4a), a second blade accommodating portion (4b), and a second blade accommodating portion (4).
b) a thin AC adapter characterized in that the blade 2B, which is in communication with and is housed in such a manner that the tip portion of the housed blade 2B projects and is housed, and that this blade (2B) can be taken out freely . 2. The rotating mechanism according to claim 1, wherein the blade body (2) includes a rotating body (3) in which a base portion is embedded,
A substantially rectangular positioning member (5) provided on both side surfaces (3a) of the rotating body (3), a rotating shaft (6) protruding from the center thereof, and the rotating shaft (6) are rotatably supported. A pair of bearing plates (9) and this bearing plate (9)
Of the bearing plate (9), which are provided on both sides of the bearing plate (9) so as to project from both sides of the bearing member and elastically contact the positioning member (5).
A thin AC adapter, wherein the contact piece (10) is integrally formed with the case half body (1B). 3. The rotating mechanism according to claim 1, further comprising: a rotating body (3) in which a base portion of the blade body (2) is embedded.
A substantially rectangular positioning member (5) provided on both side surfaces (3a) of the rotating body (3) and a rotating shaft (6) protruding from the center thereof, and the rotating shaft (6) being rotatably supported. And a pair of bearing plates (9) integrally formed on the inner surface of the case half (1B), and provided on the outside of the bearing plates (9) and elastically contacting with the positioning member (5). Almost U, which is a separate part from the body (1B)
A thin AC adapter comprising a letter-shaped contact piece (10A).