JP2506932Y2 - Storage case for lens cleaner for CD player - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is a compact disc player (hereinafter, referred to as
A storage case for storing a lens cleaner for a CD player).

[Conventional technology]

As a lens cleaner for a CD player, it is known in Japanese Patent Publication No. 1-43386 that a brush is mounted on a disc body that is substantially the same as a compact disc, and the brush cleans a pickup lens on the player side. A pseudo signal for rotating the disk body for a certain period of time is recorded on the disk surface on which the brush is implanted.

As a storage case for this type of lens cleaner, a storage case for a compact disc has been used as it is.

[Problems to be solved by the device]

Usually, a compact disc is stored in a storage case with its signal reading surface side facing down. To protect the signal reading surface,
This is to prevent the fingers from touching the signal reading surface when taking in and out. In the case of a lens cleaner, it should be similarly loaded from the viewpoint of protecting the signal reading surface.

However, a cleaning brush is implanted on the signal reading surface. Therefore, when the lens cleaner is loaded in the protective case in the above-described form, the brush bends in a sideways shape and is squeezed, which hinders subsequent use.
In particular, in the case of a lens cleaner in which the brushes are arranged in a dispersed manner to minimize the contact friction with the pickup lens, and in the case of a lens cleaner in which one brush bristle is made of ultra-fine fiber, the brush bristle is squeezed with a weak force. Easy to be affected. From these points, there is a problem in using the storage case for the compact disc as it is.

For this reason, conventionally, the lens cleaner is unavoidably mounted with the signal reading surface facing up in the storage case. Therefore, as mentioned above, there are disadvantages such as not being able to reliably protect the signal reading surface, the signal reading surface being easily contaminated with oils and fats of fingers, and careful attention not to damage the brush bristles during cleaning. I cannot escape.

Incidentally, there is no problem if the lens cleaner is stored in a dedicated storage case, but in this case, the cost of selling the lens cleaner is high.

Therefore, an object of the present invention is to store a lens cleaner equipped with a cleaning brush in a suitable state with its signal reading surface facing downward.

Another object of the present invention is to reduce the manufacturing cost by utilizing the existing storage case for the compact disc.

[Means for solving the problem]

In the present invention, the lens cleaner 2 is supported in a state of being floated away from the recess 12 of the loading table 9, and is housed in the case with the brush 5 and the signal reading surface 4 facing downward.

That is, the storage case 1 of the present invention has a main body case 8, a case lid 11, and a loading base 9 installed in the main body case 8 as shown in FIG. Corresponding concave portions 12 and holding projections 14 corresponding to the driving holes of the compact disc are provided to substantially have the same structure as the storage case for the compact disc. A spacer 15 for supporting the lens cleaner 2 is provided above the holding projection 14, and a shaft portion 17 into which the drive hole 6 of the lens cleaner 2 is fitted on the upper surface of the spacer 15 and the drive hole 6.
A receiving surface 16 for supporting the peripheral wall of the receiving surface 16 and the recess 12
It is a requirement that the vertical distance H between and is set to be equal to or larger than the protruding length 8 of the brush 5.

Further, a snap fastener 21 for holding the lens cleaner 2 supported by the spacer 15 so as not to come off is provided,
This fastener 21 is composed of a pair of male snaps 21 and female snaps 23 that can be freely inserted and removed. One of the snaps 22 and 23 is sandwiched between the holding projection 14 and the main body case 8 and fixed, and the other is provided with the drive hole 6. Is provided with a flange 24 that holds down and holds the peripheral wall of the.

[Action]

When the lens cleaner 2 is loaded in the storage case 1, the lens cleaner 2 is supported by the spacers 15 in a floating manner, and the vertical distance H between the lens cleaner 2 and the loading recess 12 is the same as the protrusion length a of the brush 5. Bigger than this. Therefore, with the brush 5 and the signal reading surface 4 facing downward, the lens cleaner 2
Can be loaded into the storage case 1, and at this time, the brush 5 can be prevented from coming into contact with the loading recess 12 and bending.

[Effect of device]

In the storage case 1 of the present invention, the lens cleaner 2 is supported by the spacer 15 in a state of being separated from the inner bottom surface of the concave portion 12, so that the brush 5 and the signal reading surface 4 are securely protected,
That is, the signal reading surface 4 faces downward, and the brush 5 can be stored in a suitable storage state in which the brush 5 is brought into contact with the inner wall of the storage case 1 so as not to be bent. Can be improved. When the lens cleaner 2 is taken in and out, it is possible to prevent the signal reading surface 4 from being touched with a finger and being contaminated, and even if the lens cleaner 2 freely rotates in the storage case 1, the signal reading surface 4 can be prevented. Can be prevented from being scratched.

The storage case 1 can be obtained by using the one for the compact disc and adding the spacer 15 thereto, so that the manufacturing cost can be reduced as compared with the case where a new dedicated storage case is manufactured. Therefore, the lens cleaner 2 can be provided at low cost.

Since the lens cleaner 2 supported by the spacer 15 is detachably held by the addition of the snap fastener 21, the lens cleaner 2 should be fixed in the storage case 1 unless the snap fastener 21 is disassembled. You can Therefore, for example, it is often solved that the lens cleaner 2 is accidentally removed when the case lid 11 is opened and closed, or the case lid 11 opens due to a drop impact and the lens cleaner 2 pops out of the case and the signal reading surface 4 is scratched. it can.

[First Embodiment] FIGS. 1 to 5 show a first embodiment of a storage case according to the present invention.
An example will be described.

In FIG. 5, a lens cleaner 2 housed in a storage case 1 of the present invention has a disk body 3 formed in substantially the same shape as a real compact disk, and a cleaning body embedded in a signal reading surface 4 of the disk body 3. It consists of a brush 5.

The brushes 5 are distributed and arranged at six places, and each brush 5 is a bundle of 10 to 20 ultrafine fibers. In the signal recording area Z including the lead-in area, each brush 5 is phase-shifted by 36 degrees in the circumferential direction, and further, each time the phase is shifted, a spiral is generated so that a radial shift of about 1.5 mm occurs radially outward. It is arranged in a shape. As shown in FIG. 2, the protrusion length a of the brush 5 from the disk body 3 was 3 mm.

The lens cleaner 2 finishes cleaning in about 10 seconds by the pseudo signal recorded in the signal recording area Z.
A drive hole 6 having the same diameter as the drive hole of the compact disc is provided in the center of the disc body 3 in a penetrating manner.

The storage case 1 is openable and closable via a square dish-shaped main body case 8, a loading table 9 that is separably assembled in the main body case 8, and pivots 10 provided on both sides of the rear end of the main body case 8. The case lid 11 is supported and has substantially the same structure as a storage case for a compact disc. The upper surface of the loading table 9 has a recess 12 for a compact disc.
And a circular holding protrusion 14 divided by a radial groove 13 is provided at the center of the recess 12. The drive hole 6 of the disc body 3 can be fitted into the holding protrusion 14.

A spacer 15 is attached to the holding projection 14 in order to house the lens cleaner 2 with the signal reading surface 4 facing downward.

In FIGS. 3 and 4, the spacer 15 is formed in a dish shape that opens downward, and has a receiving surface 16 that receives and supports the disk body 3 on the upper surface thereof, and the shaft is provided at the center of the receiving surface 16. It is formed by projecting the part 17. The outer diameter of the shaft portion 17 is set to be slightly smaller than the outer diameter of the holding protrusion 14 in the free state, and the drive hole 6 of the disc body 3 can be easily fitted into and removed from the shaft portion 17. On the inner surface of the spacer 15, a boss 18 which is fitted onto the holding projection 14 and four claw pieces 19 are integrally formed. In FIG. 1, by mounting the spacers 15 on the holding protrusions 14 with the claw pieces 19 fitted in the radial grooves 13, the spacers 15 are prevented from coming off the holding protrusions 14 and rotate. Held disabled.

The height position of the receiving surface 16 is set with reference to the protrusion length a of the brush 5. That is, the lens cleaner 2 fits the drive hole 6 into the shaft portion 17 of the spacer 15 with the signal reading surface 4 facing downward. In this stored state, the receiving surface 16 and the recess
The height of the receiving surface 16 is set so that the vertical distance H from the bottom wall of 12 is equal to or larger than the protruding length a of the brush 5. In the drawing, the vertical gap H is set to 3.4 mm, and a 0.4 mm margin is provided between the tip of the brush 5 and the bottom wall of the recess 12.

Lens cleaner 2 supported by spacer 15 and case lid 11
There is a slight gap between the storage case 1 and the storage case 1 when it is turned over or when the storage case 1 is dropped.
The lens cleaner 2 may come off the spacer 15 and damage the brush 5. In order to prevent the lens cleaner 2 from coming off, the disk body 3 can be fixed with snap fasteners 21.

2 to 4, the snap fastener is shown.
Reference numeral 21 denotes a pair of male snaps 22 and female snaps 23 that can be fitted and removed, and a female snap is provided between the holding projection 14 and the body case 8.
23 pinch and fix, male snap to this female snap 23
Insert and remove 22. The male snap 22 is formed by integrally molding a flange 24 that presses and holds a chucking wall around the drive hole 6 and four elastic engagement pieces 25 provided on the lower surface of the flange 24. Female snap 23 has a circular base 26
An engaging cylinder wall 27 into which the elastic engaging piece 25 is fitted is erected on the central upper surface of the above, and a circular boss 28 divided into four is erected on the outer periphery of the base end of the engaging cylinder wall 27.

In FIG. 2, the boss 28 is fitted inside the holding projection 14 to position the female snap 23. Further, the engagement cylinder wall 27 is fitted in the central hole of the holding projection 14 to elastically deform the holding projection 14 in an outwardly expanding shape. Holding protrusion in this state
Since the outer diameter of 14 becomes larger than the diameter of the drive hole 6 of the disk body 3, even if the spacer 15 comes off the holding projection 14, the disk body 3 cannot be pushed and mounted on the holding projection 14.

When the lens cleaner 2 is housed in the housing case 1 so that the signal recording surface 4 faces downward, the brush 5
Protrudes from the lower surface of the disk body 3 and faces the concave portion 12,
Since the vertical distance H between the concave portion 12 and the receiving surface 16 is larger than the protruding length a of the brush 5, the brush 5 does not bend.

The disc body 3 can be rotated around the shaft portion 17. However, since the whole is supported in a state of being floated away from the concave portion 12, and the spacer 15 only supports the inner part of the chucking wall in abutting support, the disk body 3 is rotated in the stored posture. Even if it is operated, the signal reading surface 4 can be prevented from being damaged.

[Second Embodiment] FIG. 5 shows a second embodiment in which the spacer 15 and the snap 21 are changed.
An example will be described. In this case, the engagement cylinder portion 30 is provided on the inner surface of the shaft portion 17 of the spacer 5, and the engagement cylinder portion 30 is fitted into the central hole of the holding projection 14 so that the spacer 15 cannot be detached and attached. By utilizing the engagement cylinder portion 30 as an engagement partner of the male snap 22, the female snap is omitted.

[Another embodiment example]

Snap 21 is not necessary. For example, if the protrusion length H of the shaft portion 17 in the first embodiment is increased by the amount of the flange 24, it is possible to prevent the lens cleaner 2 from coming off the shaft portion 17 in the case. When the shaft portion 17 is configured as an assembly of elastic claws similar to the holding protrusion 14, the lens cleaner 2
The shaft portion 17 can be held and fixed so as not to be rotatable and axially movable. In some cases, the male snap 22 on the inner surface of the case lid 11
You may hold | maintain the lens cleaner 2 by providing the protrusion of the shape.

The storage case 1 can be one for a compact disc, but it is not always necessary. For example, the loading table 9
Alternatively, the spacer 15 may be integrally molded in place of the holding protrusion 14 by newly molding.

[Brief description of drawings]

1 to 5 show a first embodiment of a storage case according to the present invention. FIG. 1 is a sectional view taken along the line AA in FIG. 5, and FIG. 1 is a sectional view of the same position as that of FIG. 1 in the state of FIG. 1, FIG. 3 is an exploded perspective view of the spacer and the snap, FIG. 4 is an external perspective view of the spacer, and FIG. 5 is a storage case in which the lens cleaner is stored. It is an internal top view which fractures | ruptures and shows. FIG. 6 is a sectional view of the essential parts showing a second embodiment of the storage case according to the present invention. 1 ... storage case, 2 ... lens cleaner, 3 ... disk body, 4 ... signal reading surface, 5 ... brush, 6 ... drive hole, 8 ... body case, 9 ... loading base, 11 ... … Case lid, 12 …… Concave, 14 …… Holding protrusion, 15 …… Spacer, 16
…… Receiving surface, 17 …… Shaft.

Claims (2)

(57) [Scope of utility model registration request] 1. A housing for housing a lens cleaner (2) which is composed of a disk body (3) substantially the same as a compact disk, and a brush (5) for cleaning is planted on a signal reading surface (4) thereof. A case, a main body case (8), a case lid (11), and a main body case (8)
A loading base (9) internally mounted on the loading base (9), a recess (12) corresponding to the compact disc on the upper surface of the loading base (9), and a holding projection (6) corresponding to the drive hole (6) of the disc body (3). 14)
Is provided, and is structured substantially the same as the storage case for the compact disc. A spacer (15) for supporting the lens cleaner (2) is provided above the holding protrusion (14), and the spacer (15) A shaft portion (17) into which the drive hole (6) of the lens cleaner (2) is fitted and a receiving surface (16) for supporting the peripheral wall of the drive hole (6) are formed on the upper surface. A storage case for a lens cleaner for a CD player, in which the vertical distance (H) between the surface (16) and the recess (12) is set to be equal to or larger than the protruding length (a) of the brush (5). 2. A snap fastener (21) for retaining a lens cleaner (2) supported by a spacer (15) so that the lens cleaner (2) cannot be removed and is retained. The fastener (21) is a pair of male snaps that can be fitted and removed. (22) and female snap (23), one of both snaps (22, 23) is sandwiched and fixed between the holding projection (14) and the body case (8), and the other of the drive hole (6) The lens cleaner storage case for the CD player according to claim 1, further comprising a flange (24) for pressing and holding the peripheral wall.