JPS63855A - Cartridge holding mechanism - Google Patents

Abstract

PURPOSE:To accommodate cartridges with different thickness at a prescribed position, by providing a regulating member which presses the cartridge inserted into an accommodating part in a direction of the thickness. CONSTITUTION:A cartridge accommodating part A is confronted with the optical pickup 4b of a recording and reproducing device 4, and a right and a left regulating members 6 are constituted so as to be slided freely in a vertical direction by pins 6b and 1d, and are pressed downward by a spring 6a. By inserting a cartridge 3 into the accommodating part A against the spring 5a, and by pushing away a door 5, its edge part is abutted with the inclined side plane 6e of the regulating member, and pushes a member 6 upward against the spring 6a, and the cartridge 3 can be placed in the accommodating part A. Thus, since regulation is performed by the regulating member 6, and the door 5, the cartridge can be accommodated at the prescribed position regardless the thickness of the cartridge.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a cartridge hold mechanism in a loading device such as a laser disc recording/playback device.

(Prior Art) In a loading device for transporting and moving a cartridge containing an information recording medium (hereinafter referred to as a disk) between an insertion position and a recording/playback position, a loading device is used to store and hold the inserted cartridge. A cartridge holding mechanism is used as a means for this.

This cartridge holding mechanism usually includes a holding member that forms a housing section for the cartridge, and a pressing spring that positions the cartridge inserted into the holding member at a predetermined position in the housing section.

However, in the conventional cartridge holding mechanism, since the size of the accommodating portion of the holding member is formed to correspond only to a specific cartridge, the shape (
In particular, when loading cartridges of different thicknesses, it is necessary to reinstall a corresponding cartridge holding mechanism, which has the drawback of reducing the versatility of the loading device.

Furthermore, in conventional cartridge holding mechanisms, simply increasing the size of the accommodating portion of the holding member in order to accommodate multiple types of cartridges with different thicknesses is insufficient.
The pressing spring has a drawback that it cannot act on the thin cartridge, impairing its original purpose of holding the cartridge.

(Objective) An object of the present invention is to provide a cartridge holding mechanism that can accommodate a plurality of types of cartridges that differ only in thickness without impairing the cartridge holding function.

(Structure) In the cartridge holding mechanism according to the present invention, the accommodating portion of the holding member is formed to have a volume that allows insertion of multiple types of cartridges differing only in thickness, and the cartridge is held at a predetermined position in the accommodating portion. It is characterized in that the pressing means for placing the cartridge in place is constituted by a pressing member whose displacement is set to at least an amount sufficient to come into contact with the side surface of the cartridge.

The present invention will be explained below based on an illustrated embodiment.

The cartridge holding mechanism according to the present invention has a holding member 1 and a pressing means 2, as shown in FIG. 1, for example.

The holding member 1 is formed with an accommodating portion A for accommodating the cartridge 3. As shown in FIG. This accommodating portion A has a volume that allows insertion of a plurality of types of cartridges that have the same planar shape and differ only in thickness. That is, the holding member 1 has an insertion opening 1a for the cartridge 3 formed in a size that allows insertion of the thickest cartridge.

Furthermore, as shown in FIG. 2, for example, the housing section A faces the turntable 4a and optical pickup 4b of the recording/reproducing device 4 through an opening formed in the bottom plate 1b of the holding member 1.

- On the other hand, the pressing means 2 is a means for fixing the cartridge 3 inserted into the holding member 1 at a predetermined position of the accommodating part A as shown in FIG. It is composed of a pressing member disposed so as to be able to move toward and away from the side surface of the cartridge 3, and an elastic body that applies an elastic force to the pressing member in a direction in which the pressing member presses against the side surface of the cartridge 3.

In the illustrated embodiment, the pressing member 2 includes a door 5 that opens and closes the insertion port la, and a regulating member 6 that regulates the loading direction of the holding member 1.
A coil spring 5a biases the door 5 with a rotational force in the direction of permanent closing, and a permanent holding member 1 is applied to the regulating member 6.
The above-mentioned elastic body is constituted by a coil spring 6a that applies a force in a direction to bring the recording/reproducing device 4 closer to the recording/reproducing device 4.

Therefore, the pressing means 2 in this embodiment also uses an existing member, and is constructed without providing a new pressing member or elastic body. This is a great advantage in realizing a smaller, lighter, and lower cost cartridge holding mechanism.

The door 5 is swingably disposed on a pair of arm portions 1c formed beside the insertion opening 1a of the holding member 1 via a support shaft 5b. The coil spring 5a is wound around a support shaft 5b, and its lower end is attached to the door 5.

The other ends are respectively locked to the arm portions 1c.

The regulating member 6 has left and right pairs as shown in FIG. 1, for example, and is slid in a direction substantially perpendicular to FIG. Each is freely supported. Each of these regulating members 6 has each pin 1d implanted in the holding member 1 fitted into its top, and the loading device (
A loading member 7 (not shown) regulates the loading direction when the holding member 1 approaches and separates from the recording/reproducing device 4. Moreover, the abdomen 6d of each regulating member 6
is formed in a single character shape, and the cartridge 3 in the storage section A is
each extending into the insertion path. The side surfaces 6e of each of these abdomens 6d facing the insertion path are inclined in a direction that pushes each regulating member 6 away from the cartridge 3 to the side (upward in the figure) when the cartridge 3 is inserted into the accommodating portion A. has been done.

The coil spring 6a is wound around a short shaft 1f that is suspended horizontally on the bent and raised portion 1e of the top plate of the holding member l, and its negative end is placed on the slotted portion 6C of the regulating member 6, and the other end is placed on the top plate. are respectively locked.

The loading members 7 are arranged on both sides of the holding member 1, and the guide grooves 7a of the loading members 7 are connected to the headed pins 1. is fitted.

On the other hand, in the frame 4c of the recording/production device 4.

A plurality of positioning pins 4d are provided to correspond to positioning holes 3a formed in the cartridge 3 when the cartridge 3 is inserted into the housing portion Δ (FIG. 3).

The cartridge holding mechanism configured as described above is
As long as the cartridges have the same planar shape, it is possible to accommodate a plurality of types of cartridges having different thicknesses.

That is, this cartridge holding mechanism
When cartridge 3 is inserted, first.

The door 5 is pushed away by the insertion side end surface of the cartridge 3 against the elasticity of the coil pal 5a, and the free end of the door 5 comes into pressure contact with the upper surface of the cartridge 3.

Next, the insertion side end surface of the cartridge 3 comes into contact with the inclined side surface 6e of the desk side member 6, and the cartridge 3 is inserted while pushing away the regulating member 6 upwardly against the elasticity of the coil spring 6a. The lower surface of the holder is pressed against the holder (FIG. 3), and the holder is placed in the accommodating part A. As is clear here, the door 5 and the regulating member 6 have their respective coil springs 5a and 6 at any displacement position within their respective displacement ranges.
The elasticity of a provides rotational force and sliding force in the direction of pressing the cartridge 3. Therefore, the amount of displacement of the door 5 and the regulating member 6 is the same.

That is, regardless of the thickness of the cartridge 3, the cartridge 3 can be placed at a predetermined position on the holding member l.

Note that, as shown in FIG. 4, when the cartridge 3 is placed in the accommodation section A as described above, the holding member 1 is lowered along each guide pin 6b as the loading member 7 moves to the left. death.

The positioning hole 3a fits into the positioning pin 4d, and the loading is completed.

(Effects) Since the cartridge holding mechanism according to the present invention includes the above-described holding member and pressing means, it is possible to accommodate multiple types of cartridges that differ only in thickness without impairing the cartridge holding function. can.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a sectional view of the above embodiment, Fig. 3 is a sectional view of essential parts showing the operating mode of the above embodiment, and Fig. 4 is a sectional view of the above embodiment. FIG. 3 is a cross-sectional view showing how the pond works. l... Holding member, 2... Pressing means, 3...
...Cartridge, 5...Door, 5a+ba...
・Coil spring, 6...Regulation member.

Claims (1)

[Claims] 1. A holding mechanism for the cartridge in a loading device for transporting and moving a cartridge containing an information recording medium between an insertion position and a recording/playback position, which a holding member formed with an accommodating portion having a volume that allows insertion of multiple types of cartridges having different sizes; and a displacement amount of a pressing member for positioning the cartridge inserted into the holding member at a predetermined position in the accommodating portion. A cartridge holding mechanism characterized in that the cartridge holding mechanism is provided with a pressing means set to a sufficient amount to abut at least the side surface of the cartridge having the largest thickness. 2. According to claim 1, the contact surface between the pressing member and the cartridge is inclined in such a direction that the pressing member constituting the pressing means is pushed aside to the side of the cartridge by the insertion operation of the cartridge. Cartridge hold mechanism. 3. The cartridge holding mechanism according to claim 1, wherein one of the pressing members is a regulating member for regulating the loading direction of the holding member. 4. The cartridge holding mechanism according to claim 1, wherein one of the pressing members is a door that is openably disposed in the insertion opening of the holding member.