JPH04205958A - Disk elevating mechanism - Google Patents

Abstract

PURPOSE:To miniaturize the disk elevating mechanism and to reduce its weight and also to keep a pantagraph mechanism out of the way of inserting/ejecting a magazine by using the pantagraph mechanism as the elevating mechanism and diposing a driving means for the pantagrap mechanism in a restricted space underneath a fixed chassis of the elevating mechanism. CONSTITUTION:The subject mechanism is composed of a fixed chassis member 7 and a supporting member 2 provided on its upper surface and for performing vertical displacement with a disk supported. The supporting member 2 is vertically movably connected with the fixed chassis member 7 via the pantagraph mechanism 21, and lever members 12 and 13 of the pantagraph mechanism 21 are constituted to be driven by the driving means 22 provided in a restricted space part underneath the fixed chassis member 7. Consequently, the pantagraph mechanism 21 can be miniaturized, and the driving means 22 of the pantagraph mechanism 21 can be constituted not to be projected out in the inserting/ejecting direction of the magazine 1. By this method, the disk elevating mechanism is miniaturized, and is reduced in weight, and also even when a horizontally inserting/ejecting operation of the magazine is performed, the pantagraph mechanism 21 can be out of the hindrance.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mechanism for raising and lowering a disc in a CD autochanger device.

[Conventional technology]

Conventional CD autochangers select and pull out a desired disc from a magazine containing multiple discs and transport the disc to the play position, or vice versa. A disk up and down mechanism is provided to return the disk to a predetermined position within the magazine.

Conventional disk up/down mechanisms can be roughly divided into two types: those that employ a feed screw mechanism as shown in Figure 4, and those that employ a pandagraph mechanism as shown in Figure 6. Can be seen.

In the former, a desired disk is selected from the magazine 1 containing a plurality of disks 8 according to a predetermined instruction,
It is fixedly supported by a support member 2, which is a mechanism that is displaceable in the vertical direction and controls insertion and ejection of the disk.

The support member 2 is then attached to three feed screws 3, 3', 3, which are provided on the fixed chassis member 7, as shown in FIG.
The disc 8 is fixed horizontally by the fixed chassis member and moves up and down according to the direction of rotation of the feed screw to move the supported disc 8 to a predetermined position and connect it to an appropriate player 4 provided on the fixed chassis member. Alternatively, it has the function of separating the disc from the player 4 and returning the disc to a predetermined position within the magazine.

In such a mechanism, as is clear from FIG. It is rotated by a drive gear 5 connected at the same time, and the drive gear 5 is rotated by an appropriate drive means 6 provided separately.

On the other hand, in the latter case, as is clear from FIG. 2 is connected to the fixed chassis member 4 so as to be movable up and down.

At least one pantograph lever 12 of the pantograph mechanism is engaged with a suitable drive means 15, and the support member 2 is moved up and down in accordance with the drive of the drive means.

On the other hand, in recent years, such disc performance mechanisms have been increasingly used indoors in automobiles, etc., and for this reason, there has been a demand for the mechanisms to be smaller, lighter, and lower in cost. Because it is necessary to insert and arrange the performance mechanism in a certain limited space, its installation is done in the so-called insertion/ejection direction, in which a magazine containing multiple discs is inserted into and ejected from the above-mentioned CD autochanger, depending on the form. If it can only take one direction, there will be fewer opportunities to use it.

[Problem to be solved by the invention]

Therefore, in recent years, as shown in FIG. 7, the magazines are often designed so that the insertion and removal directions are at least two directions indicated by arrows A and B.

Therefore, regarding the above-mentioned feed screw type disk vertical mechanism, since the vertical movement of the support member uses the rotation of the feed screw, the pitch etc. of the feed screw is changed depending on the number of disks stored in the magazine. necessary, which will increase costs. However, with this system, even if the magazine is inserted in two different directions, the magazine can be easily inserted and ejected.

On the other hand, in the system using the Pandagraph mechanism, there is no need to change the vertical movement of the support member even if the number of disks stored in the magazine differs; however, as shown in FIG. In the Pandagraph mechanism, the end T of the Pandagraph lever 12, which is connected to the drive means, protrudes to the top of the fixed petri dish member, so that the magazine 1 is moved in the direction of arrow A in FIG. There is no problem with a performance mechanism in which the insertion/removal operation is performed along the arrow B (referred to as the vertical insertion/removal direction), but in a performance mechanism in which the insertion/removal operation is performed in the direction of arrow B (referred to as the horizontal insertion/removal direction), , the end T becomes an obstacle,
It is impossible to perform insertion/ejection operations.

The purpose of the present invention is to improve the above-mentioned drawbacks of the prior art, and to
D A disc up/down mechanism used in autochangers, which is a compact and lightweight disc that can fully accommodate changes in the number of discs stored in a magazine, and also allows the magazine to be inserted and ejected in two directions. It provides a vertical mechanism.

[Means to solve the problem]

In order to achieve the above object, the present invention employs the technical configuration described below.

That is, the disc up-and-down mechanism in a CD autochanger device is composed of a fixed chassis member and a support member that is provided on the upper surface of the fixed chassis member and that supports the disc and displaces it in the vertical direction. The member is vertically movably connected to the stationary chassis member via a pandagraph mechanism, and at least one lever member constituting the pandagraph mechanism is connected to a limited lever member formed at a lower portion of the stationary chassis member. This is a disk up and down mechanism configured to be driven via a drive means provided in a space.

[For production]

In the present invention, since the above configuration is adopted, the pandagraph mechanism is miniaturized, and the driving means of the pandagraph mechanism is configured so as not to protrude in the insertion/ejection direction of the magazine. Therefore, even if the magazine is inserted and ejected horizontally, there is no risk that the pandagraph mechanism will become an obstacle. This will be explained in detail.

As described above, the disk up/down mechanism 20 used in the CD autochanger according to the present invention is basically provided on the fixed chassis member 7 and the upper surface of the fixed chassis member 7, and supports the disk 8 in the up and down direction. The support member 2 is composed of a pandagraph mechanism 2 composed of a pandagraph lever 12, 13, etc.
1 is vertically movably connected to the fixed chassis member 7, and at least one lever member 12 constituting the pantograph mechanism 21 is formed at the lower part of the fixed chassis member 7. It is configured to be driven via a driving means 22 provided within the space S.

In other words, the basic technology of the present invention is to use a pandagraph mechanism as a disc up/down mechanism for a CD autochanger. The technical feature is that the driving means 22 of the pantograph mechanism 21 is arranged in a restricted space having a predetermined height and below the horizontal plane H formed by the upper surface of the fixed chassis member 7 of the disk up-and-down mechanism. It is.

In other words, the horizontal plane H constituted by the upper surface of the fixed chassis member 7 coincides with the surface on which the bottom surface slides when inserting and ejecting the magazine 1.

Although the drive means 22 in the present invention is not particularly limited, it has a fine unit movement range and can move the support member 2 connected to the pantograph mechanism to a predetermined position accurately and at high speed. Any material can be used as long as it is possible.

However, in the present invention, since the other purposes of the disk up-and-down mechanism are to reduce the size and weight, the drive means 2
2 is required to have sufficient dimensions and driving ability to be placed at least within the narrow space S formed in the lower portion of the fixed chassis member 7.

As a result, no matter which direction the magazine 1 is inserted or removed, there is no obstacle that would obstruct the sliding operation of the magazine 1 as in the prior art.

FIG. 1 is a sectional view showing a specific example of a disk up/down mechanism according to the present invention.

That is, FIG. 1 shows an example in which a rack-gear system is adopted as the drive means 22.

That is, a driving means 27 consisting of a small rack 24 and a motor having a gear 26 that engages with the rack 24 is provided on the lower surface of the fixed chassis member 7 in the disk up-and-down mechanism, while the supporting member One end of the pantograph lever 12 of the pantograph mechanism 21 that moves the pantograph 2 up and down is integrally engaged with the rack 24.

Therefore, in such a specific example, the motor of the drive means 27 is rotated by a necessary amount and the rack 24 is displaced by a predetermined amount, thereby operating the pantograph mechanism 21 and displacing the position of the support member 2. It is.

Thereby, it is possible to selectively pull out a desired disk from the magazine and to re-store the disk in a predetermined position within the magazine easily and quickly.

FIG. 2 shows a specific example in which one or more lever mechanisms 28 are used in place of the pandagraph mechanism 21 used in FIG.
2, a mechanism as shown in FIG. 1 can be used.

That is, in this specific example, the end of the lever mechanism 28 is engaged with the rack 24 of the drive means.

In such a structure, the configuration is extremely simple, and the amount of displacement of the support member 2 can be accurately controlled and displaced at high speed, which greatly contributes to cost reduction.

Further, the drive means 22 in the present invention may be configured by combining an appropriate drive source and an appropriate cam mechanism, and in that case, one end of the cam mechanism may be connected to the drive source. , and the other end of the cam mechanism is connected to the end of the Pandagraph lever 12 of the Pandagraph mechanism 21;
It is connected to the end of the lever mechanism 28.

Furthermore, when such a cam mechanism is used, within the small space S formed in the lower part of the fixed chassis member 7, each cam part of the cam mechanism has its flat part fixed to the fixed chassis member 7. It is preferable to arrange it parallel to the plane of.

By adopting such a configuration, it is possible to further reduce the volume of the small space.

However, in this specific example, the cam part arranged parallel to the plane of the fixed chassis member and the end of the Pandagraph lever 12 of the Pandagraph mechanism 21 or the lever mechanism 28 It is necessary to provide another cam part to connect with the end of the cam.

A specific example of implementing the above configuration is shown in FIGS. 3A and 3B.

That is, FIG. 3A shows an example of the pandagraph mechanism drive mechanism of the disk up-and-down mechanism according to the present invention, and the space S in which the pandagraph mechanism drive mechanism is provided in the lower part of the fixed chassis member 7 is shown. It shows the mechanism for placing it inside.

FIG. 3A is a plan view of the disk up-and-down mechanism seen from below, in which the rotation of the small motor 30 is transmitted from the worm gear 31 via a gear train to the sliding piece 34 on which the rack 33 is formed. The sliding piece 34 is caused to slide in the vertical direction as viewed in the drawing according to the rotational direction of the motor.

In the specific example of FIG. 3A, it is assumed that the sliding piece 34 is slid in the direction of arrow B.

As a result, the swinging pieces 35, 35' provided at both ends of the sliding piece 34 swing and swing in the directions of arrows C and D about the pivot 39, 39', and engage the ends of the pandagraph mechanism. Sliding piece 36.3 formed three-dimensionally in an L-shape to engage
6゛ in the direction of arrow E.

As a result, as understood from FIG. 3B, the sliding piece 36
．． Since the end of the pandagraph mechanism 12, which engages with the protruding piece 37.37' provided at 36', is moved in the direction of arrow E, each pandagraph lever 12.13 constituting the pandagraph mechanism The support member 2 is lowered by pivoting about the pivots 41 and 42 in the directions of arrows F and G.

Furthermore, when the motor rotates in reverse, the support member 2 will move upwards.

In FIG. 3, 43 is a support plate that supports the pivot 41.42 of the Pandagraph lever 12.13 of the Pandagraph mechanism.

〔effect〕

The present invention is a disc up/down mechanism used in a CD autochanger, which is compact and lightweight, can sufficiently cope with changes in the number of discs stored in a magazine, and can be designed to have two magazine insertion/ejection directions. The disc up/down mechanism can be changed to be more compact and cost-effective.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a specific example of a disk up/down mechanism according to the present invention. FIG. 2 is a side view showing another specific example of the disk up/down mechanism according to the present invention. FIG. 3A is a plan view showing an example of the drive mechanism of the disk up-and-down mechanism according to the present invention. FIG. 3B is a side view showing an example of a pandagraph mechanism to which the drive mechanism shown in FIG. 3 is applied. FIG. 4 is a side view showing an example of a conventional disk up/down mechanism. FIG. 5 is a plan view of the disk up/down mechanism shown in FIG. 4. FIG. 6 is a side view showing another example of the conventional disk up-and-down mechanism. FIG. 7 is a diagram showing the direction in which magazines are inserted and removed in the CD autochanger mechanism according to the present invention. 1 magazine, 2 support member, 3 feed screw, 4 player, 5 drive gear, 6 drive section, 7 fixed chassis member, 8 disk, 11 gear section, 12.13 Pandagraph lever, 14 drive gear, 20 disk up and down mechanism, 21 Pandagraph mechanism, 22 Drive means, 24 Rack, 25 - Engagement part, 26 - Gear, 27 Drive source, motor, 28 Lever mechanism, 30 Motor, 31 - Worm, 32 Gear train, 33 Rack, 34 Sliding piece , 35 rocking piece, 36 sliding piece.

Claims (1)

[Scope of Claims] 1. A disc up/down mechanism in a CD autochanger device, which comprises a fixed chassis member, a support member provided on the upper surface of the fixed chassis member, and supporting the disc and displacing it in the vertical direction. The support member is vertically movably connected to the fixed chassis member via a pandagraph mechanism, and at least one lever member constituting the pandagraph mechanism is located at a lower portion of the fixed chassis member. A disk up-and-down mechanism characterized in that it is driven via a drive means provided in a limited space. 2. The drive means is composed of a drive gear and a rack part, and an end of at least one lever member constituting the pantograph mechanism is connected to the rack member via the gear means. 2. The disk up-and-down mechanism according to claim 1, characterized in that: 3. The driving means is composed of a driving means and a lever mechanism that is connected to the driving means and swings, and the end of at least one lever member constituting the pantograph mechanism is 2. The disk up/down mechanism according to claim 1, wherein the disk up/down mechanism is connected to an end of the lever mechanism.