JPS63317973A - Loading mechanism for rotary disk device - Google Patents

Abstract

PURPOSE:To continuously perform loading of a disk cartridge and pressing release of a center hub, and to eliminate a need of a reversing device by driving an external holder only in one direction in all of the range from the start to the completion of loading operation. CONSTITUTION:When an inner holder 4 falls together with an outer holder 3, a pressing piece 43 is brought into contact with a center hub 14. When the outer holder 3 falls furthermore, a disk cartridge 1 is engaged with a positioning seat 25 and a positioning pin 24 to stop movement of the inner holder 4. In this process, a flat spring 7 is elastically deformed to energize the pressing piece 43 to the center hub 14. As the result, the center hub 14 of the disk cartridge 1 is depressed by the pressing piece 43 and is fitted to a center spindle 23 up to a prescribed depth. Thereafter, the outer holder 3 falls furthermore to reach the lower transfer end. In this process, a pressing release piece 71 is brought into contact with the flat spring 7 and the flat spring 7 is pushed upward and is forcibly restored from elastic deformation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention transports and sets a disk cartridge rotatably housing a magnetic disk for signal recording or reproduction to a recording/reproducing position at the back of the device. This relates to the loading mechanism.

(Prior Art) Electronic still camera devices, which have been developed in recent years, record image signals on a disk cartridge containing a rotating magnetic disk or reproduce the signals as still images. It consists of a camera for recording on magnetic disks and a player for playing back the recorded magnetic disks.

As shown in Figure 9, the disk cartridge used in electronic still cameras has a positioning reference hole (11) on the outer periphery.
A magnetic disk (16) is rotatably housed in a flat, approximately square hard disk cartridge case (1o) with an opening (12) in the radial and axial directions with some play. A window (17) is provided on the surface of the case to expose the magnetic disk (16).
) is equipped with a dustproof shutter (13) that can be opened and closed. Also, holes (15) are provided in the center of both sides of the case to correspond to the center hub (14) of the disk (16).

The shaft hole (18) opened in the center hub (14) of the disk (16) has a substantially triangular shape with the - side curved in an arc shape, and the shaft hole (18) is formed in the center spindle (2) connected to the motor.
By tightly fitting the center hub (14) into the disc (16), the disc (16) is driven to rotate at high speed.

In order to set the disc (16) in an accurate position relative to the center spindle (23), set the center hub (16)
4) to the center spindle (23) has been proposed (Japanese Patent Laid-Open No. 60-5756).
No. 6 [G11B171035]).

However, this attachment/detachment device requires two operations: after inserting the disk cartridge into the inner bucket, and then pushing down the lid to engage it with the device body, which is cumbersome.

Therefore, the applicant has found that it is possible to adopt front loading II, in which the disk cartridge inserted through the device opening is conveyed horizontally and vertically and set to the recording/playback position, and that the center hub cannot be placed in an accurate position and posture relative to the center spindle. The authors have developed a loading mechanism with a simple structure that can be fitted together with other devices, and proposed equipping an electronic still camera with this loading mechanism (Japanese Patent Application Laid-Open No. 62-36778).

FIG. 3 shows the structure of the electronic still camera.

The base (2) has a center spindle (23) connected to a drive motor in the center of the recording/reproducing position where the disk cartridge (1) is to be set, and a side plate (20).
An outer boulder (3) is supported on the outer holder (20) so as to be movable up and down, and an inner holder (4) that removably accommodates the disc cartridge (1) is installed in the outer holder (3). ) is installed so that it can move relative to the vertical direction.

The inner boulder (4) has guide grooves (40) on both sides of the inner surface that guide the horizontal movement of the disk cartridge (1).
(40), and the disk cartridge (1) inserted from the entrance side of the guide groove is automatically conveyed to the inner part of the holder along the guide groove and held, as will be described later.

Main shafts (30) (30) are provided on both side walls of the outer holder (3) to protrude outward, and the main shafts are engaged with arms (60) (60) driven by a motor (6), so that the outer holder (3) Drive up and down.

A plurality of coil springs are interposed between the upper surface of the inner holder (4) and the inner surface of the outer holder (3), thereby biasing both the holders (3) and (4) in the direction of vertically separating them from each other. .

Above the inner holder (4), there is a disk cartridge (1
) for conveying a pair of rubber rollers (50) (5o)
A roller support frame (51) pivotally supported is provided.

The rollers (50) (50) are driven to rotate in forward and reverse directions by a motor (5).

In addition, at the center of the upper surface of the inner holder (4), there is a plate-shaped spring piece (not shown) with a pair of pressing pieces protruding downward at the tip.
is provided with its base end fixed to the inner holder (4), and both pressing pieces press down on the center hub (14) of the disk cartridge (1) in the inner holder (4) by elastic deformation of the spring pieces. is possible.

When attaching the task pack in the inner holder (4) to the center spins 1 to 23 by the rope ink mechanism, the outer boulder (3) is driven by the motor (6).
) is lowered together with the inner halter (4). Outside boulder (
3) moves to the center hub pressing position, which is slightly before the transition end toward the center spindle (23) and where the inner boulder (4) stops moving, the leaf spring pushes the pressing piece toward the center spindle (23). 23).
This allows the disk in the disk cartridge to fit into the center spindle (23) in an accurate position and orientation.

Thereafter, the motor (6) is reversed for a certain period of time to slightly lift the outer holder (3), thereby separating the pressing piece from the disk and allowing the disk to rotate freely.

Therefore, according to the loading mechanism according to the applicant's earlier application, the disk cartridge (1) is set by driving the outer holder (3) up and down. Configurable.

(Problem to be solved) However, in the above loading mechanism, when setting the disc cartridge, it is necessary to equip a reversing device to raise the outer holder (3) slightly after lowering it. However, this left the problem of complicating the configuration of electronic still cameras.

(Means for Solving the Problems) An object of the present invention is to drive the outer halter (3) in only one direction over the entire range from the start of the loading operation to the completion of the loading operation. It is an object of the present invention to provide a loading mechanism in which pressing against a center hub is performed continuously.

The loading mechanism according to the present invention includes a plate spring (7) having a pressing piece (43) at the tip thereof protrudingly provided on the outer halter (3) of the loading mechanism according to the applicant's earlier application.
A pressure release piece (71) is provided on the inner halter (4) so as to protrude from the center of the plate spring (7).

(Function) In the process of installing the disc cartridge on the center hub, the outer holder (3) is attached to the center spindle (23).
) is slightly before the transition edge toward the inner boulder.
When the outer holder (3) moves to the center hub pressing position where the outer holder (3) stops moving, the leaf spring (7) presses the pressing piece (43) toward the center spindle (23).
When moving from the pressing position to the transition end, the pressing release piece (
71) comes into contact with the leaf spring (7) to separate the pressing piece (43) from the center spindle (23).

(Effects of the Invention) According to the loading mechanism according to the present invention, the configuration of the front 1 to the loading mechanism is not only easy, but also the outer boulder (3 ) in only one direction, the mounting of the disk cartridge and the release of pressure on the center hub are performed continuously, so there is no need for a device for reversing the loading mechanism. Therefore, it is suitable as a loading mechanism for an electronic still camera, which is required to be compact and inexpensive.

(Example) FIGS. 1 and 2 show an example in which the present invention is implemented in the front loading mechanism of the electronic still camera shown in FIG. 3. The loading mechanism will be described in detail below with reference to FIGS. 1 to 4.

Slide pins (41) (4) on both sides of the inner holder <4)
1) protrudes outward and fits into slide holes (31) (31) vertically opened on both side walls of the outer bolter (3), and the inner holder (4) is inserted into the slide holes (31). Movement in the vertical direction is guided within the range of .

The outer porter (3) has a plurality of pins (32) (33) (34) (37) protruding outward from both side walls that connect the side plates (20) (20) of the base (2) in the front and back direction. It fits into a front guide hole (21) and a rear guide hole (22), which are vertically opened at the ends of the body, and is guided to move vertically within the range of the guide holes.

First to fifth coil springs (9) (92) (
93) (94) (95) are interposed. As a result, both the boulders (3) (4>) are urged in the direction of vertically separating them from each other, and under normal conditions when the disc cartridge (1) is not loaded, the inner holder (4) has the slide pin (41) It hits the lower edge of the slide hole (31) and is held at the position closest to the center spindle (23).

In addition, the first coil spring (9) and the second coil spring (92
) and the fifth coil spring (95), as shown in FIG. 4, each consist of an outer spring (90) and an inner spring (91) coaxially provided. The outer spring (90) is the outer boulder (3)
and the inner holder (4), and the inner spring (91)
The upper end is fixed to the outer holder (3), and the lower end corresponds to the hole (44) formed in the inner holder (4).

As shown in FIGS. 2 and 3, the rollers (50) (50) pivotally supported by the roller support frame (51) have spur gear
(54), a first motor (5) is linked via a power shaft (52) and a bevel gear mechanism (53).

At the back of both side plates (, 20) (20) of the base (2), there are shirts (shirts) to (61) with U-shaped arms (60) protruding from both ends.
) is installed so that it can rotate freely. A main shaft (30) protruding from both side walls of the outer holder (3) is engaged with the shaft (64) of the arm (60).

A fan-shaped gear (63) is fixed to the tip of the shaft (61) that protrudes from the base right side plate (20), and meshes with a worm gear (62) that protrudes from the output shaft of the second motor (6). are doing.

As shown in Fig. 1, a leaf spring (7) having a pair of pressing pieces (43) projecting downward at its tip is provided on the inner surface of the side wall of the outer holder (3), and is pressed again. Piece (43) (
43), due to the elasticity of the spring piece (42), the inner boulder (
4) Center hub (
14) It is possible to lower the pressure.

On the other hand, on the earthen wall of the inner holder (4), the plate springs (7) are attached.
A pair of pressure release pieces (71) (7
1) is provided protrudingly.

As shown in Figure 3, the inner holder (4) has a light emitting section (
83) and a light receiving section (82>), first to third photosensors (8), (80), and (81) are arranged at predetermined positions.

In addition, a shielding plate (35) is fixed to the third pin (34) and fourth pin (37) protruding from the rear of the right side wall of the outer holder (3), and the right side plate ( 20), fourth and fifth photosensors (84) and (85) are arranged at predetermined positions to be described later, facing the transition path of the shielding plate (35).

The first and second motors (5) (6) are connected to the first to fifth photosensors (8) (80) (81) (84).
) (85) The activation/stopping is controlled by a control circuit connected to the signal from (85).

The operation of the loading mechanism will be described below.

When the disk cartridge (1) is inserted into the insertion slot of the inner holder (4), the disk cartridge (1) will touch the first photo sensor (8) just before the tip comes into contact with the roller (50). This causes the first 12=1 motor (5) to start and rotate the rollers (50) (50). If you push the disc cartridge (1) further into the holder, the disc cartridge (1)
The leading end portion of the paper bites into the rotating rollers (50) (50), and is thereafter conveyed to the back of the apparatus by the drive of the rollers.

When the disc cartridge (1) is completely loaded into the inner holder (4), the optical path of the third photo sensor (81) is blocked by the disc cartridge (1). As a result, the first motor (5) stops and the roller (50)
(50) stops rotating. As a result, the inner holder (4)
The disk cartridge (1) inside the center hub (1)
The shaft hole (18) of 4) is positioned to coincide with the axis of the center spindle (23).

Immediately before the first motor (5) stops, the second motor (6) starts, and the arms (60) (60) rotate in the direction of the arrow in FIG. This allows the outer holder (3) to
to fourth pins (32) (33) (34) (37
) to the front and rear guide holes (21) (22) of the base (2)
and is pushed down to the transition end closest to the center spindle (23).

Along with this, the inner holder (4) also descends, and the outer holder (
3) has moved to the transition end closest to the center spindle (23), the inner holder (4)
The disk cartridge 1) inside the inner boulder (4) is pressed downward by the springs (9) <92) to (95).
are the first, second and fifth springs (9) (92) (95
) is lowered by the inner spring (91). As a result, the disc cartridge (1) has the reference holes (11) and (12).
engages with the positioning pin (24) on the base (1), and the reference surface formed on the lower surface of the disc cartridge case (10) comes into close contact with the positioning seat (25), fixing it at a predetermined recording/playback position. It will be done.

As the outer holder (3) descends, the disk cartridge mounting operation and pressing release operation are performed as shown in FIGS. 5 to 8.

As shown in FIG. 5, when the outer holder (3) is located at the upper transition end, the inner holder (4)
) etc., it is at the lower margin end. Also, at this time, the leaf spring piece (7) is in a free state, and the pressing piece (43) is separated from the center hub (14).

When the inner holder (4) descends together with the outer holder (3), the pressing piece (43) touches the center hub (1) as shown in FIG.
4). At this time, there is still sufficient space between the pressure release piece (71) and the leaf spring (7).

As shown in FIG. 7, as the outer holder (3) further descends, the disk cartridge (1) is moved to the positioning seat (2).
5) and the positioning pin (24), and the inner holder (
The movement of 4) is stopped. Also, during this process, the leaf spring (7) is elastically deformed, and the pressing piece (43) is moved toward the center hub (
14). As a result, the center hub (14) of the disk cartridge (1) is pressed against the pressing piece (43).
) to fit into the center spindle (23) to a predetermined depth.

After the center hub (14) and center spindle (23) are completely mated, the outer holder (3) is further lowered,
The lower transition end is reached as shown in FIG. In this process,
The pressure release piece (71) comes into contact with the leaf spring (7), and the leaf spring (
7> to forcefully restore the elastic deformation. Along with this, the pressing piece (43) is separated from the center hub <14).

At the same time, the shielding plate (35) blocks the optical path of the fifth photo sensor (85), thereby stopping the second motor 6) and completing loading.

When the eject button (not shown) installed on the front panel of the unloading ingredient regenerator is operated, the second motor (
6) starts rotating in the direction of raising the outer holder (3). This allows the outer holder (3) to
5) is driven upward until it blocks the optical path of the fourth photo sensor (84), and returns to the state at the start of descent shown in FIG.

In this process, first, remove the slide hole (31) of the outer holder (3).
) (31) the lower edge is the slide pin (41) (41)
When the outer holder (3) comes into contact with and further rises, the inner boulder (4) is driven upward together with the outer holder (3). As a result, the center hub (14) is separated from the center spindle (23), and the disk cartridge (1) is moved to the rubber roller (5) at the rising end of the outer holder (3).
0) Abuts on (50).

In response to a command from the fourth photo sensor (84), the second motor (6) stops, and at the same time, the first motor (5) starts rotating in the opposite direction to that during loading.

The disk cartridge (1) has a rubber roller (50) (
50), it is transported toward the holder insertion opening. When the disk cartridge (1) opens the optical path of the second photo sensor (80), the first motor (5)
stops, and the disc cartridge (1) is in a state where it is locked by the roller (50) at a position approximately 1 to 2 "nrn from the insertion tip. At this time, the disc cartridge (1) is in the position shown in FIG. 3. It comes straight out of the device and can be taken out.

In addition, when the loading start button (not shown) provided on the front panel is operated from the disk cartridge locked state, the first motor (5) starts rotating in the loading direction again, and the same loading operation as described above is performed. will be carried out.

Therefore, when the player is remotely controlled by the remote control switch, loading and unloading operations can be repeated without touching the disc cartridge.

The above-mentioned front loading mechanism not only has excellent operability and reliability, but also allows the pressing release operation of the center hub (14) to be performed only by the lowering operation of the outer boulder (3), so that the loading operation is completed. It has excellent effects, such as short time required for vertical loading and no sudden load fluctuations in the motor for vertical loading. Furthermore, the mechanism for releasing the pressure has an extremely simple structure, consisting of only a pressure release piece protruding from the inner holder, and is therefore suitable for electronic still cameras that require compactness.

It should be noted that the configuration of each part of the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made within the technical scope of the claims.

For example, the above-mentioned loading mechanism can be implemented not only as an automatic loading mechanism in which the outer holder (3) is driven by a motor, but also in a manual mechanism.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing the main parts of the loading mechanism of a rotating disk device according to the present invention, Fig. 2 is a front view of the mechanism, Fig. 3 is a partially broken perspective view, and Fig. 4 is an outer holder. 5 to 8 are a series of explanatory views showing the vertical loading operation,
FIG. 9 is a perspective view of the disk cartridge. (1) Disc cartridge (14) Center hub (23) Center spindle (3) Outer holder (4) Inner holder (7)
...Plate spring (43) ...Press piece (71
)...Press release piece Fig. 8

Claims (2)

[Claims] (1) A disk cartridge containing a freely rotatable magnetic disk equipped with a center hub in the center is transported to a recording/reproducing position where a center spindle (23) is provided, and the center hub is attached to the center spindle (23). )
In the loading mechanism of a rotary disk device that is fitted and set in a rotary disk device, an outer holder (3) is movably provided so as to move toward and away from the center spindle (23), and in the outer holder (3), Disk cartridge (
An inner holder (4) for removably storing and holding the inner holder (4) is arranged to be movable independently in the same direction as the outer holder within a margin formed between the inner holder (4) and the outer holder. 4) is biased toward the center spindle (23) by a spring interposed between the outer holder (3) and the inner wall of the outer holder (3) to fill the gap between the inner holder (4) and the center spindle (23). ) A leaf spring (7) is provided protrudingly extending toward the vicinity of the center spindle ( A pressing piece (43) is provided to protrude from the inner holder (4) to press it in the axial direction, and a pressing release piece (71) is provided to protrude from the inner holder (4) so as to face approximately the center of the leaf spring (7). and outside holder (
3) moves to the center hub pressing position, which is slightly before the transition end toward the center spindle (23) and where the inner holder (4) stops moving, the leaf spring (7)
) presses the pressing piece (43) toward the center spindle (23), and when the outer holder (3) moves from the pressing position to the transition end, the pressing release piece (71) presses the plate spring (7).
The pressing piece (43) is brought into contact with the center spindle (2
3) A loading mechanism for a rotating disk device, characterized in that the loading mechanism is separated from the rotating disk device. (2) The loading mechanism according to claim 1, wherein the outer holder (3) is automatically reciprocated in conjunction with a conveyance means.