JP2595694Y2 - Door opening and closing mechanism for CD deck - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for opening and closing a door for a CD deck. Formed with a lock mechanism for fixing the lock in the closed position
The present invention relates to a deck door opening and closing mechanism.

[0002]

2. Description of the Related Art FIGS. 3A and 3B schematically show a conventional opening / closing mechanism for a CD deck door of this type. FIG. 3A is a perspective view of the CD deck door in an open state, and FIG. It is principal part sectional drawing in the closed state of a deck door. In the figure, reference numeral 11 denotes a door, and a stabilizer 12 provided with a magnet is disposed substantially at the center of the inner surface of the door 11. A locking portion 13 that engages with a locking piece 14 disposed on the CD main body case 17 side extends from the lower surface of the door 11 at one end on the distal end side of the door 11. A door storage portion 17d is formed in the CD main body case 17 so that the door 11 is accommodated in the CD main body case 17 when the door 11 is rotated to the closed position with the support shaft 16 as the center of rotation. A circular concave portion 17c for mounting a CD is formed substantially in the center, and a turntable 18, a lens (not shown), and the like are provided in the concave portion 17c. One end of the torsion coil spring 21 is the door 1
One end and the other end are locked on the CD body case 17 side. The control of the biasing force of the torsion coil spring 21 is performed by a gear (not shown) arranged to mesh with the gear 11b and a damper (not shown) connected to this gear.

In the opening / closing mechanism for the CD deck door configured as above, the locking piece 14 is moved in the direction of arrow F by operating an eject button (not shown), and the locking with the locking portion 13 is performed. Is released. Simultaneously with this operation, the door 11 is slowly rotated in the opening direction, that is, in the direction of arrow C under the control of the gear 11b and the damper, by the urging force of the torsion coil spring 21, and the opening state as shown in FIG. Become. When the door 11 is pressed by hand against the urging force of the torsion coil spring 21 in the direction of arrow D, the door 1
1 rotates in the direction of arrow D about the support shafts 16a and 16b. The locking portion 13 and the locking piece 14 are engaged with each other on an engagement surface formed on a slope, and the locking portion 13 is used to temporarily move the locking piece 14 in the direction of arrow F. 13. When the engagement of the locking pieces 14 on the engaging slopes is released, the locking portions 14 return in the direction of arrow E, and the locking portions 13 and the locking pieces 14 are locked, as shown in FIG. It will be in the closed state as shown.
Thereafter, if a CD is placed in the concave portion 17c, the CD is sandwiched between the stabilizer 12 and the turntable 18, and the turntable 18 is rotated by operating a play button (not shown) and read via the lens. Reproduction is performed based on the CD signal thus obtained.

[0004]

However, in the above-described door opening / closing mechanism for a CD deck, the lock between the door 11 and the CD main body case 17 is locked by the locking portion 13 and the locking piece as shown in FIG. The lock is provided at one position on one side of the tip of the door 11. For this reason, in the closed state, the door 11 on the side opposite to the side where the locking portion 13 is formed rises, and a step G is generated between the door 11 and the CD main body case 17 side, resulting in an unfavorable appearance. There was a problem of becoming.

The present invention has been made in view of such a problem, and has no a step between the CD body case side and the CD deck door in the closed state, and has an aesthetic appearance. It is intended to provide an opening and closing mechanism.

[0006]

In order to achieve the above object, a door opening / closing mechanism for a CD deck according to the present invention is provided in which a door is urged in an opening direction by an elastic body, and a distal end of the door moves away from a center of rotation of the door. A door mechanism for a CD deck in which a lock mechanism for fixing the door at a closed position is formed on one side of the unit.
A positioning recess is formed on the side opposite to the one side of the door, and a projection that fits into the recess is formed on the CD main body case side.

[0007]

According to the above construction, the door is urged in the opening direction by the elastic body, and the CD deck in which the lock mechanism for fixing the door in the closed position is formed on one side of the front end portion away from the center of rotation of the door. In the opening and closing mechanism for the door, a positioning recess is formed on the side opposite to the one side of the door, and a projection that fits into the recess is formed on the CD main body case side. It will be locked at the part. Therefore, unlike the case where only one end is locked, the other end that is not locked does not rise, and a step is formed between the CD main body case side and the CD deck door in the closed state. No longer occurs.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a door for a CD deck according to the present invention; Note that components having the same functions as those of the conventional example are denoted by the same reference numerals. FIG. 1 shows a first embodiment of a CD deck door opening / closing mechanism according to the present invention, and is a cross-sectional view of a main part schematically showing a closed state of a CD deck door. In the figure, reference numeral 11 denotes a door, and the door 11 is connected to the CD main body case 17 via a support shaft (not shown). The support shaft is the center of rotation of the door 11, one end of the door 11 facing the center of rotation is provided with a locking part 13 which engages with a locking piece 14, and the other is provided with a positioning piece 25. Extends from the lower surface of The positioning piece 25 has a concave portion 25a formed on the side facing the inner side wall of the main body case 17, and a substantially hemispherical sliding surface 25b is formed from the concave portion 25a to the front end portion. The recess 25 a is adapted to be fitted with a projection 26 provided on the inner side wall of the CD main body case 17. The protrusion 26 is manufactured using an elastic body such as rubber, a spring, or a sponge. The rest is configured similarly to the CD deck door opening / closing mechanism shown in FIG.

In the opening / closing mechanism for the CD deck door constructed as described above, the lock between the locking portion 13 and the locking piece 14 is released by the operation of an eject button (not shown). The engagement between the projection 25 and the projection 25a is easily released. When the lock between the locking portion 13 and the locking piece 14 is released, the door 11 rotates in the opening direction, and the positioning piece 25 also moves in the opening direction. Projection 26 having elastic force with movement of positioning piece 25
Is deformed, relatively moves from the concave portion 25a to the sliding surface 25b, and is released without preventing the positioning piece 25 from moving. After such a process, the door 11 is opened. When the door 11 is pressed by hand in the closing direction, the locking portion 13 and the locking piece 14 are locked, and the door 11 is closed. At this time, on the positioning piece 25 side, the positioning piece 25 also moves in the closing direction, so that the projection 26 itself having elastic force is deformed and the sliding surface 2 is moved.
5b and fit into the recess 25a.

In the opening / closing mechanism for the CD deck door according to the first embodiment, the locking portion 13 and the locking piece 14 are engaged at one of the ends of the door 11, and the positioning piece 25 and the projection are engaged at the other. In the closed state where the part 26 is fitted, the door 11 is locked at both ends without bias. Therefore, unlike the conventional case, the other end that is not locked by the lock of only one end does not rise, and the CD body case 17 and the door 11 are closed in the closed state.
Can be eliminated. Also, the protrusion 26
Since is made of an elastic material, the shape of the projection 26 itself is easily changed, and the opening and closing operation of the CD deck door is not hindered, and the opening and closing operation can be performed smoothly.

FIG. 2 shows a second embodiment of a CD deck door opening / closing mechanism according to the present invention, and is a cross-sectional view of a main part schematically showing a closed state of the CD deck door. In the figure, reference numeral 11 denotes a door, and the door 11 is connected to the CD main body case 17 via a support shaft (not shown). The support shaft is the center of rotation of the door 11, and one of the ends of the door 11 facing the center of rotation is provided with the locking portion 13 and the positioning portion 27 which engage with the locking piece 14, and the other is provided with 25 extends from the lower surface of the door 11. Positioning section 27 having guide section 27a on the side facing the inner wall of CD body case 17
Is pressed in the direction of arrow A in the closed state by the spring force of a plate spring 28, one end of which is screwed on the CD body case 17 side. The other end of the plate spring 28 can move within a hole 29 formed on the CD main body case 17 side.

A recess 25a is formed in the positioning piece 25 on the side facing the inner wall of the CD body case 17, and a substantially hemispherical sliding surface 25b extends from the recess 25a to the tip.
Are formed. The concave portion 25a is adapted to be fitted with the projecting member 31. The projecting member 31 is expanded in a small hole 30a and a small hole 30a formed at a position opposite to the concave portion 25a in the CD main body case 17, and has a cylindrical shape. Is provided in the space portion 30 formed in the space. The projecting member 31 includes a projecting portion 32 having a stopper 32a extending therefrom and a coil spring 33 connected to the stopper 32a.
2a is connected to the small hole 3 in the space 30.
0a is fixed to the wall surface on which the no
0 is slidably supported. The projection 32 is formed by the small hole 3 by the spring force of the coil spring 33 in the direction of arrow B.
0a, and similarly, the stopper 32a is
Is pressed against the wall surface on which the small hole 30a is formed. The rest is configured similarly to the CD deck door opening / closing mechanism shown in FIG.

In the opening / closing mechanism for the CD deck door constructed as described above, the lock between the locking portion 13 and the locking piece 14 is released by operating an eject button (not shown). The fixing to the door 11 by force is easily released. Then, the locking portion 13 and the locking piece 1
When the lock with the door 4 is released, the door 11 rotates in the opening direction, and the positioning portion 27 also moves in the opening direction. The plate spring 28 having a spring force moves along with the guide portion 27a with the movement of the positioning portion 27, and releases without stopping the movement of the positioning portion 27. At this time, the positioning piece 25 also moves in the opening direction on the positioning piece 25 side, and with the movement of the positioning piece 25, the protrusion member 31 having a spring force changes the expansion and contraction of the coil spring 33 and moves from the recess 25a to the sliding surface 25b. , And is released without preventing the positioning piece 25 from moving. After such a process,
The door 11 is opened. When the door 11 is pressed by hand in the closing direction, the locking portion 13 and the locking piece 14 are locked, and the door 11 is closed. At this time, the positioning unit 27 is
The plate spring 28 that contacts the guide portion 27a is also moved in the direction of arrow B by moving in the closing direction, and the plate spring 28 presses the positioning portion 27 in the direction of arrow A after passing through the guide portion 27a. On the other hand, on the positioning piece 25 side, the positioning piece 25 also moves in the closing direction, so that the projection member 31 itself having a spring force is once moved in the direction of arrow A to pass through the sliding surface 25b, and then returned in the direction of arrow B. It fits with the recess 25a.

In the CD deck door opening / closing mechanism according to the second embodiment, the positioning portion 2 is provided at one end of the door 11.
7 is pressed by the plate spring 28 and the door 11 is pressed from both ends in the closed state where the positioning piece 25 and the projection member 31 are fitted together, and the CD main body case 1 is pressed.
7 without being biased against the inner side wall,
It can be held at the center position with respect to the D body case 17. In addition, the same effect as the opening / closing mechanism of the door for the CD deck shown in FIG. 1 can be obtained.

Further, in the second embodiment, the plate spring 28 is attached to the CD main body case 17 as a means for pressing the positioning portion 27, but in another embodiment, the CD main body case 1 is provided.
An elastic body such as rubber, sponge, or the like may be attached to 7, and in this case, the same effect as in the second embodiment can be obtained.

[0016]

As described above in detail, in the door opening / closing mechanism for a CD deck according to the present invention, the door is urged in the opening direction by an elastic body, and the front end of the door which is distant from the center of rotation of the door. In a CD deck door opening / closing mechanism having a lock mechanism for fixing the door at a closed position on one side, a positioning recess is formed on the side opposite to the one side of the door, and a projection fitted into the recess is provided. Since the door is formed on the CD main body case side, the door can be locked at both ends without bias. Therefore, unlike the case where only one end is locked, the other end that is not locked does not rise, and the CD body case side and the C
The step between the door and the D deck can be eliminated.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a first embodiment of a CD deck door opening / closing mechanism according to the present invention, schematically showing a closed state of a CD deck door.

FIG. 2 is a sectional view of a main part of a second embodiment of the opening / closing mechanism of the CD deck door according to the present invention, schematically showing a closed state of the CD deck door.

3A and 3B are diagrams schematically showing a conventional opening / closing mechanism for a CD deck door of this type, wherein FIG. 3A is a perspective view of the CD deck door in an open state, and FIG. 3B is a perspective view of the CD deck door; It is principal part sectional drawing in a closed state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Door 13 Locking part 14 Locking piece 17 CD main body case 25a Depression 26 Projection

Claims (1)

(57) [Scope of request for utility model registration] An opening and closing of a door for a CD deck, wherein a door is urged in an opening direction by an elastic body and a lock mechanism for fixing the door in a closed position is formed on one side of a distal end portion away from the center of rotation of the door. In the mechanism, a positioning concave portion is formed on the side opposite to the one side of the door, and a protrusion fitted into the concave portion is
CD formed on the D body case side
Opening / closing mechanism for the deck door.