JPH0510284Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a recording disk storage case equipped with a shutter opening/closing mechanism using a spring body.

(Prior art) Conventionally, in storage cases for recording disks such as COROM, there is a shutter plate on the side opposite to the lid mounting surface (hereinafter referred to as the back side) that exposes a portion of the disk as appropriate for recording or playback. It is provided. 4 to 6 show the opening and closing mechanism of this shutter plate. As shown in FIG. 4, the shutter plate 1 is completely closed by the spring body 2 in the normal state. In Fig. 4, reference numeral 3 denotes a case body with a disk storage section 4 in the center, and a plate-shaped lid is inserted into the surface opening of the case body through engagement holes 3a formed on both left and right sides of the case body. A body (not shown) is pivotally connected to the body so that it can be opened and closed. When recording or reproducing in a predetermined apparatus, the shutter plate 1 moves in parallel toward the left side in the drawing against the elastic force of the spring body 2. The spring body 2 has a substantially doglegged shape when viewed from above, and one end 2a is slidably fitted loosely along a narrow groove 3b provided in one corner of the case body 3, and the other end 2b is fitted loosely in the corner of the case body 3. It is locked to one side of the shutter plate 1 facing the corner. As the shutter plate 1 moves, this spring body 2
The movement as shown in FIG. That is, when the shutter plate 1 opens to the intermediate position,
One end 2a of the spring body begins to move from one end of the groove to the other end along the narrow groove 3b (Fig. 5), and when the shutter plate 1 is fully opened, the one end 2a of the spring body 2 moves as shown in Fig. 6. As shown, it comes into contact with the other end of the narrow groove 3b. In this way, one end 2a of the spring body 2 is connected to the thin groove 3b.
By making it movable along the shutter plate 1, it is possible to maintain a constant repulsive force by the spring body 2 and to enable smooth opening and closing of the shutter plate 1.

(Problems to be Solved by the Invention) However, in the conventional disk storage case as described above, the end 2a of the spring body 2 that is loosely fitted into the narrow groove 3b is shown in FIG. 6 when the shutter is fully opened. The spring body 2 does not return to its original position even when the disc storage case is removed from the playback/recording device, and the shutter plate 1 does not close and the window of the disc storage case opens. There were cases where the situation remained as it was.

The present invention has been made in view of the above circumstances, and allows the one end 2a of the spring body 2 to move smoothly within the narrow groove 3b at all times, thereby making the opening and closing operation of the shutter plate 1 extremely smooth. The purpose is to provide a storage case for recording disks.

(Means for Solving the Problems) The present invention provides a means for solving the above problems, in which the extending direction of the narrow grooves is inclined in an oblique direction, unlike the conventional direction parallel to the side edge of the case. It was adopted.

That is, the present invention includes a case having a recording disk storage section, a shutter plate that slides along one side of the case body to appropriately expose a part of the recording disk, and one end of which is a corner of the case. It is loosely fitted into a narrow groove 12 provided in the groove 12 so as to be able to slide freely along the narrow groove 12,
and a spring body having a generally doglegged shape in plan view, the other end of which is latched to one side of the shutter plate facing one corner of the case, and biased in a direction to close the shutter plate. In the recording disc storage case, the narrow groove is provided at a certain angle of inclination from the side edge of the case in the direction in which the shutter plate opens.

(Function) In the present invention, the narrow groove provided at the corner of the case is provided at a certain angle of inclination from the side edge of the case in the direction in which the shutter plate opens, so the end of the spring body on the loose fitting side The shutter plate does not get stuck in the corner of the narrow groove and its movement is suppressed, and smooth sliding is always ensured, thus facilitating the opening and closing movement of the shutter plate.

(Embodiment) The case of the present invention consists of a case body 11 and a lid body. FIG. A plate-shaped lid (not shown) is pivotally attached to the case body 11 so as to be openable and closable through a pair of locking holes 13 formed on both left and right sides of the case body 11.
Note that this lid body may be fixed to the case body instead of being openable and closable. A window portion 10 is formed in a portion of the bottom surface of the disk storage portion 12, and this window portion 10 is normally closed by a shutter plate 14. However, when recording and reproducing in a predetermined apparatus, the shutter plate 14 is moved in parallel in the direction of the arrow a to open the window 10. This shutter plate 14 has an engagement groove formed on one side, and this engages with one side edge 11a of the case body 11 in a slidable manner.
It is designed to move in parallel along a. Further, the opening and closing of the shutter plate 14 due to this parallel movement is performed under the bias of a spring body 15 which is substantially doglegged in plan view. That is, one end 15a of this spring body 15
is a thin groove 1 provided in one corner of the case body 11.
6, and is slidable along the longitudinal direction of this narrow groove 16. The other end 15b of the spring body 15 is locked to the end 14a of the engagement groove of the shutter plate 14, which faces the narrow groove 15 of the case body 11.

The narrow groove 15 is formed in the shutter plate 1 as shown in FIG.
Case body side edge 11 on the side in which 4 opens (arrow side)
b with a certain inclination angle (α angle shown in FIG. 1), preferably with an inclination angle of α=15° to 45°.

The spring body 15, one end of which is loosely fitted into the inclined narrow groove 16, changes from the completely closed state shown in FIG. 1 to the intermediate open state shown in FIG. The movements shown in these figures are shown in the fully open state shown in Fig. 3. That is, when the shutter plate 14 is completely closed, the spring body 15
The end 15a is in pressure contact with the upper left corner of the narrow groove 16 in the drawing, but when the spring body 15 is squeezed to the half-open state of the shutter plate 14 as shown in FIG. It begins to move downward in the drawing along the outer inner wall surface of No. 16. Furthermore, the shutter board 1
4 is opened to a fully open state as shown in FIG. Next, when closing the shutter plate 14 again, the direction of the stress applied to the end 15a of the spring body 15 in order to return it is relatively similar to the direction of the narrow groove 16, so that the spring body 15 The end portion 15a easily separates from the corner portion with which it was in contact and automatically returns to its original position.

(Effect of the invention) According to the recording disk storage case according to the invention, the direction of the thin groove for loosely fitting one end of the spring body, which is approximately dogleg-shaped in plan for opening and closing the shutter plate, can be changed from the fully open state of the shutter plate. The loose fitting end of the spring body always remains smooth because it is angled in a direction that conforms to the direction of the aerodynamic force applied to this loose end of the spring body when moving to the closed state. A sliding movement is obtained, and therefore the shutter plate can be opened and closed smoothly at all times.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the recording disk storage case according to the present invention with the lid removed, and FIGS. 2 and 3 show the movement of the spring body used in the opening/closing mechanism of the shutter plate of the disk storage case. FIG. 4 is a plan view of the conventional recording disk storage case with the lid removed, and FIGS. 5 and 6 are the shutter plates of the conventional recording disk storage case. FIG. 3 is a plan view of the main parts for explaining the movement of the spring body as it opens and closes. In the figure, 1... Shutter plate, 2... Spring body, 2a
...One end of the spring body, 2b...The other end of the spring body, 3...
...Case body, 3a...Engagement hole, 3b...Small groove,
4... Disc storage section, 10... Window, 11... Case body, 12... Disc storage section, 13... Locking hole, 14... Shutter plate, 15... Spring body, 1
5a... One end of the spring body, 15b... The other end of the spring body, 16... Thin groove.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A case having a recording disk storage section, a shutter plate that slides along one side of the case body to appropriately expose a part of the recording disk, and one end of which is covered by the storage disk. It is loosely fitted into a narrow groove provided at one corner of the case so as to be able to slide freely along this groove, and the other end is locked to one side of the shutter plate facing the one corner of the case, so that the shutter plate is In the recording disk storage case, the recording disk storage case is equipped with a substantially dogleg-shaped spring body biased in the closing direction, and the narrow groove is inclined from the side edge of the case in the direction in which the shutter plate opens. The above-mentioned disk storage case is characterized in that it is provided with a corner. (2) The disk storage case according to claim 1, wherein the angle of inclination is 15 to 45 degrees.