JPS6344950Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a charger, and more particularly to a charger comprising a frame-shaped battery housing and a power supply unit rotatably connected to the open end of the housing.

The power supply part has an open case that houses the charging parts and protrudes from a pair of charging plug blades that are connected to the input side of the charging parts, and a pair of charging contacts that are connected to the output side of the charging parts that are attached to the surface. , and an end cover for closing the open case, and a lug-shaped protrusion that engages with an engagement hole provided on the open end side of the battery compartment is provided at a position opposite to the opening edge of the open case, and By attaching the end cover to the open case in relation to the protrusion, the end cover can be easily attached.

Therefore, in the present invention, a recess is provided on the inner surface of the ear-like protrusion, and a claw piece is provided on the end cover that engages with this recess, thereby creating a space for attaching the end cover to the open case. It can be made unnecessary.

Hereinafter, one embodiment of the present invention will be described based on the drawings. Reference numeral 1 denotes a U-shaped synthetic resin battery storage frame, which is composed of left and right side walls 2, 2, a bottom plate 3, and an end wall 4. One end is open. Reference numeral 5 is a synthetic resin housing having a cubic shape as a whole, and has built-in charging parts such as a step-down transformer 6, a diode 7, and a limiting resistance resistor 8 as shown in FIG. Charging contacts 10, 10 are attached, and
On one side 11 adjacent to the bottom surface 9, there is a pair of charging plug blades 12, 1 connected to the input side of the charging component.
2 is highlighted. Specifically, the housing 5 consists of an end cover 13 and an open case 14 that houses the transformer 6, etc., and claw pieces 1 provided on both sides of the end cover 13.
5 and 15 are elastically engaged with inner recesses 17 and 17 of substantially rectangular ear-shaped protrusions 16 and 16 provided at opposing positions on the opening edge of the open case 14 to be covered. Further, a pair of charging contacts 10, 10 connected to the output side of the charging component are attached to the end cover 13, and a battery is attached slightly above the center (see FIGS. 2 and 6). Elastic piece 18 for articulation on the storage frame 1 side
A recess 19 is provided for joint operation. Both corners of one of the pair of ear-shaped protrusions 16, 16 are chamfered 20, 20 in a rounded shape. on the other hand,
The other charging contacts 21, 21 are attached to the inner surface of the end wall 4 of the battery storage frame 1, and the frame 1
At the tips of the left and right side walls 2, 2, there is an L-shaped engagement hole 24, in which a vertical hole 22 and a horizontal hole 23 of the same shape that match the ear-shaped protrusions 16, 16 are continuous. 2
4 are formed respectively. And this engagement hole 2
4, 24, which move from the upper edge of the vertical hole 22 to the horizontal hole 23, these ear-shaped protrusions 16, 16 are connected to the vertical hole 22.
It is formed into an arcuate surface 27 that matches the arcuate locus that it follows when it rotates as a fulcrum for the lower end 22 of the vertical hole, and at the boundary where it transitions from the upper edge 25 of the vertical hole to this arcuate surface 27, it becomes a stepped portion 28. There is.

The housing 5 has its ear-shaped protrusions 16, 16 fitted into the L-shaped engagement holes 24, 24 of the battery storage frame 1, and is pivotally connected in two positions, horizontally and at right angles, so as to be vertically rotatable. Ru. That is, as shown in FIG.
The battery storage frame 1 is rotated between a state in which the battery storage frame 2 faces outward and a storage state in which the battery storage frame 1 faces inward as shown in FIG.

The operation of the present invention in the above configuration will be explained as follows.
When not charging, as shown in FIGS. 4 and 5, the housing 5 hides the plug blades 12, 12 horizontally within the frame 1, and the ear-like protrusions 16, 16 are engaged in an L-shape. It fits into the horizontal holes 23 and 23 portions of the holes 24 and 24. Furthermore, an articulation piece 18 on the frame bottom plate 3 is engaged with an articulation recess 19 on the bottom surface of the housing 5, thereby preventing the housing 5 itself from moving backward. When attempting to charge from this state, first move the housing 5 horizontally to the left as shown in FIG.
8, and then rotate the entire housing 5 counterclockwise. Then, the ear-like projections 16, 16
slides its lower end 16 into the lower edge 26 of the vertical hole 22 portion of the L-shaped engagement hole 24, and uses the contact portion with this as a fulcrum to support the rounded chamfered portions 2 of the ear-shaped protrusions 16, 16.
0 and 20 rotate along the arcuate surfaces 27 of the engagement holes 24 and 24. Then, when it reaches the stepped portions 28, 28 and further rotates counterclockwise, a notch works at this portion and finally the vertical holes 22, 22
the plug blade 12, as shown in Figure 3.
12 is held in a state protruding from the storage frame 1. After the plug blades 12, 12 protrude in this way, the charging contacts 10, 10 on the bottom of the housing 5
and charging contacts 21, 21 on the storage frame end wall 4 side facing this, storage batteries 29, 29 are connected.
When the plug blades 12, 12 are inserted into the power outlet, the step-down transformer 6, diode 7,
Charging circuit for battery 29 and limiting resistor 8 (see Figure 7)
charged by. After charging is completed, turn the housing 5 back to its original position in the opposite direction (clockwise).
Rotate 90 degrees once. With this alone, the rear part 5' of the housing 5 protrudes from the storage frame 1 and is a nuisance.
In the present invention, the housing 5 is further configured to be able to slide toward the storage frame 1 side. Therefore, by sliding the housing 5 inward of the storage frame 1, the ear-like protrusions 1
6 and 16 are again fitted into the horizontal holes 23 of the L-shaped engagement holes 24 and 24, and the rear part 5' of the housing is inserted into the frame 1.
It is flush with the end face of the frame, making the overall length the same as the length of the frame itself, making it compact.

As described above, in the present invention, the opening edge of the open case is engaged with the engagement hole provided at the end of the opposing side wall of the battery storage frame at the opposing position, and the opening case is raised and lowered relative to the battery storage frame. providing a rotatably pivotable ear-like protrusion and forming a recess on the inner surface of the protrusion;
Since the end cover that closes the opening of the open case is provided with a claw piece that engages with the recess, the resin molding thickness of the ear-like protrusion becomes thinner due to the presence of the recess; The disadvantage of shrinkage due to the resin wall thickness can be eliminated, and there is no need to separately provide a recess for engaging the claw piece in the open case. Further, since the claw pieces engage with the recesses on the opposing inner surfaces of the ear-like protrusions, the pair of ear-like protrusions become difficult to dislodge from the engagement holes of the battery accommodating body, which has great practical effects.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a cross-sectional view of the charger, Fig. 2 is an external view of the charger in a used state, Fig. 3 is a side view of the same state, and Fig. 4 is a non-use state. FIG. 5 is a side view of the charger in use, FIG. 6 is an exploded perspective view of the components, and FIG. 7 is a charging circuit diagram. 12, 12... Charging plug blade, 14... Opening case, 16, 16... Ear-shaped protrusion, 17, 17...
... recess, 10, 10 ... charging contact piece, 13 ... end cover, 15, 15 ... claw piece, 1 ... battery storage frame,
2, 2... side wall, 24, 24... engagement hole.

Claims (1)

[Scope of utility model registration request] a battery storage frame body with an engaging hole formed at the end of the opposite side wall; an open case that houses a charging component and protrudes from a pair of charging plug blades connected to the input side of the charging component; and the case. a lug-like protrusion that is provided at a position opposite to the opening edge of the frame and that engages with the engagement hole of the frame to pivotally support the case with respect to the frame, and an inner surface of the protrusion; an end cover on which a pair of charging contacts connected to the output side of the charging component are attached and which covers the opening of the case; and a protrusion provided on the end cover. A charger comprising a claw piece that engages with the recess.