JPS58175162A - Cartridge opening and closing device - Google Patents

Abstract

PURPOSE:To insert or eject a cartridge to or from a driving device, by moving a projecting part forward and backward in accordance with attaching and detaching operations of the cartridge. CONSTITUTION:A cartridge 100 is inserted to the driving device and a cartridge opening and closing device in the direction of an arrow A and is moved relatively. According as the cartridge 100 is inserted, a projecting part 4a of a flexible member 4 in the cartridge 100 is brought into contact with the second member 16. When the cartridge 100 is inserted furthermore, the projecting part 4a is brought into contact with a fixing pawl 17, and thereafter, the projecting part 4a is moved to a lower plate 2a or an upper plate 2b of the cartridge 100 by the insertion quantity of the cartridge 100. When the cartridge 100 is moved in the direction of an arrow B opposite to the insertion direction of the arrow A, the projecting part 4a is brought into contact with the second member 16. When the cartridge 100 is moved in the direction of the arrow B furthermore, the projecting part 4a and the second member 16 are disengaged from each other, and the cartridge 100 is ejected.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to any cartridge which has a reciprocating protrusion on the outside of the cartridge, and by reciprocating the protrusion, various functions of the cartridge can be realized. The present invention relates to a device for reciprocating the protrusion to open and close the opening of the cartridge as the cartridge is attached to and removed from the device into which the cartridge is loaded.

The various functions of the cartridge may include, for example, opening or closing the recording or reproducing opening of the cartridge in response to the reciprocating movement of the protrusion. However, the opening for storing or ejecting objects in the cartridge may be opened or closed.

Hereinafter, the implementation of the present invention will be described using an example in which the cartridge has a built-in magnetic sheet.

First, an example of an IJ card used in the present invention will be explained using a floppy disk as an example.

FIG. 1 is an exploded perspective view of a cartridge 1000, in which a disk-shaped magnetic sheet 1 capable of recording on both sides is attached to an upper grate 2b.
It is rotatably built in between and the lower grate 21L.゛A magnetic head (not shown) for information recording/reproduction is placed in contact with the surface of the magnetic silt 1 on the lower 7 tools 21L and the upper grate 2b, and the magnetic head is fully moved in the same direction as the diameter of the sheet. Elongated hole-shaped openings 3 are provided in each case. The band-shaped flexible member 4 is made of flexible resin such as vinyl chloride.
s-x75t62 (2) The side edge portions are located within a pair of guide grooves 6 provided opposite to each other on the inner surfaces of the lower flute 21L and the upper play (2b), and are guided so as to be slidable back and forth in the elongated direction. The flexible member 4 is provided with a protrusion 4a at one end in the longitudinal direction,
A notch 4bi is provided on both side edges of the other end of the shield, and one end of the shielding member 6 is inserted and engaged between the notch 4b and the inner surfaces of the lower plate 2a and the upper plate 2b. ◇The other end of the shielding member 6 is the lower flute 2L
Then, the shielding member 6, which is rotatably fitted to the outer periphery of the boss 8 provided inside the upper play h2b concentrically with the hub hole 7, is slid and rotated to the position of the opening 3. At the same time, the detection hole 1o for detecting the index pole 9 provided on the magnetic sheet 1 can also be shielded. Further, the guide $5 is formed on a straight line in a portion continuously exposed to the outside of the cartridge, and is parallel to the side surface of the cartridge.

When using the cartridge 100 as described above, it is inserted into a recording or reproducing drive device in the direction indicated by the arrow mark in FIG. The flexible member 4 is slid in the direction opposite to the direction indicated by the arrow when necessary, so that the opening 3 becomes open. When the cartridge 100 is ejected from the drive device, the flexible member 4 is slid in the direction of the arrow and the opening 3 is covered.

As described above, in the cartridge 100, the opening 3 is opened so that information can be recorded or reproduced when the cartridge is inserted into the drive device, and when the cartridge is outside the drive device. The magnetic sheet 1 inside the IJ is protected from dust, fingerprints, and damage.

Next, a cartridge opening/closing device according to this embodiment will be explained.

FIG. 2 is an exploded perspective view of the main parts. In the figure, the first shaft 11 has a first torsion spring 1 between it and the first member 13.
2 completely passes through the first torsion spring 12 while being compressed, and is fixed to the base 18 while being rotatably fitted to the first member 13. The first torsion spring 12 is a first member 13
When the first member 13 is urged to rotate in the direction of the arrow 21 (counterclockwise in the figure), the amount of rotation of the first member 13 is restricted by a stopper (not shown). The second shaft 14 holds the second torsion spring 16 between it and the second member 16.
5, and is fixed to the first member 13 while being rotatably fitted to the second member 16. Second member 16
is biased by the second torsion spring 16 to rotate in the direction of arrow 2o (clockwise in the figure). The rotatable range of the second member 16 is restricted by the bending portion 162L coming into contact with the side surface of the first member 13. The fixed claw 17 is the base 1
8 with a predetermined positional relationship with the center of the first shaft 11. Arrow A indicates the direction in which the aforementioned cart, ridge 100, is inserted.

Next, the operation of this embodiment will be explained with reference to FIG. Figure 3 (&), (bl, (C), (dl)
, (el), and (f), it is assumed that the cartridge 100 is inserted into a drive device (not shown) through the insertion opening in the front panel 19. 4& is shown in a cutaway view, and a portion of the cartridge opening/closing device according to the present invention is shown in an exaggerated manner.

FIG. 3 (al is a view at the time when the car 1-IJ jig 100 has begun to be inserted into the drive device, and the protrusion 4a is in front of the cartridge opening/closing device. The cartridge 100 is connected to the drive device and The cartridge is inserted into the cartridge opening/closing device in the direction of the arrow and moves relative to it.

FIG. 3(b), FC) shows the process in which the cartridge 1oO is further inserted and the flexible member 4 is slid by the cartridge opening/closing device.
d) shows a state in which the above insertion is completed and the opening 3 is completely opened.

In FIG. 3(b), as the cartridge 1oO is inserted, the protrusion 4a of the flexible member 4 inside the cartridge 100 comes into contact with the second member 16. Here, the flexible member 4 can slide along the guide groove 6 shown in FIG. 1.

During the sliding, static frictional force exists, and if the outer side on which the member 4 is to be slid is smaller than the static frictional force, the flexible member 4 does not slide.

On the other hand, in FIG. 2, when a force is applied to rotate the second member 16 in the direction opposite to the arrow 2o, the rotational moment generated around the second shaft 14 at that time is also 14, the second member is rotated in the direction 20 if the torque is greater than the rotational moment generated by the second torsion spring 16 in the direction of the arrow 2o.

In the relationship between the protrusion 4a of the flexible member 4 in the car IJ 100 and the car IJ jig opening/closing device, the protrusion 4& is in contact with the second member 16, and further the cartridge 100 when inserting.

Protrusion 4! Forces of action and reaction act on each other between L and the second member 16. A rotational moment about the second shaft 14 is generated in the second member 16 in a direction opposite to the arrow 20 due to the reaction force from the projection 4a. here,
The generated moment of the second torsion spring 15- is set to be smaller than the rotational moment caused by the reaction force. Therefore, the second member 16 rotates about the second shaft 14 in the direction opposite to the arrow 2o in FIG. The static friction force mentioned above is greater, so it does not slide.

That is, as shown in FIG. 3(b), the protrusion 4a passes through the second member 16 in a manner that presses it against the fixing claw 1.
It is located between 7 and the second member 16 so as to be inserted therein.

When the cartridge 100 is further inserted, the protrusion 41
L comes into contact with the fixing claw 17 as shown in FIG. 3(C), and then the cartridge 10 is
0 lower plate 2! L or upper plate 2b (see FIG. 1).

Here, the moving process of the protrusion 4a means that the upper and lower plates 2b and 21L of the cartridge 100 move relative to the drive device. The portion 4a cannot be moved with respect to the drive device or the cart IJ opening/closing device described above. FIG. ○ Figure 3 1ejl and (fJ are diagrams showing the process of ejecting the cartridge 100. In Figure 3 (6), the cartridge 100 is moved in the B direction opposite to the insertion direction indicated by the arrow mark. By moving, the protrusion 4& comes into contact with the second member 16. Here, the protrusion 4& rotates the second member 16 in the direction of the arrow 2o in FIG. However, the bending portion 16& of the second member 16 is in contact with the first member 13, and its rotation is restricted.For this reason, the second member 16 is integral with the first member 13. Therefore, a rotation δ is attempted around the first shaft 11 in the direction opposite to the arrow 21 in FIG. 2, but the force generated by the first torsion spring 12 is set to be larger than the above rotation force. Therefore, the second member 16 does not rotate, and on the contrary, the force applied from the second member 16 to the protrusion 4& is greater than the static friction force, and the protrusion 4& is moved relative to the cartridge 100. 3 (0 is the state where the protrusion 4a has returned to the predetermined position. In this state, the end of the flexible member 4 opposite to the end where the protrusion 42L is located in FIG. The end, that is, the final end always inside the cartridge 1oO, abuts the final end of the guide groove 5, and the flexible member 4
cannot slide any further. However, cartridge 100
If it is made movable further in the direction B, the force applied from the protrusion 4& to the second member 16 will increase, and eventually the second member 16 will become integral with the first member 13 and move against the first torsion spring. 12, in the opposite direction to the arrow 21 in FIG.
In other words, the cartridge 100 is rotated clockwise in FIG.

Through the above reciprocating operations, the elongated opening 3 of the cartridge 100 can be opened or closed by the insertion and ejection operations of the cartridge 100.

A feature of the present invention is that the protrusion of the cartridge can be reciprocated with a simple configuration, and this is not done for the sole purpose of reciprocating the protrusion, but rather for inserting the cartridge into a drive device or , which is performed in conjunction with the operation of ejecting from the drive device. Furthermore, since the present invention does not use an actuator such as a motor, it can be installed in a small amount of space.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an example of a cartridge used in the present invention, Fig. 2 is an exploded perspective view of essential parts of an embodiment of the present invention, and Fig. 3 (11, (b), (C1, (d)) ,
(C5). (fl is a top view of essential parts in each state for fully explaining the operation of the same embodiment. 1...Magnetic sheet h22L...Lower grate, 2b...Upper plate , 3...
Opening, 4...Flexibility, member, 4...
Projection, 4b...notch, 6...guide groove, 6...shielding member, 7...l\jib hole 8...・Boss, 11...1st axis, 12
...... 1st) (ne, 13... 1st member,
14...Second axis, 15...Second spring,
16... Second member, 162L... Bent part. 17... Fixed claw, 18... Base, 19
・・・・・・Front panel of drive device, 100・
·····cartridge. Name of agent: Patent attorney Toshio Nakao and 1 other person! R
2 figures straw 3 figures

Claims (1)

[Scope of Claims] A fixing claw that engages with a protrusion protruding from the outside of the cartridge, a first member that is rotatably held and biased to rotate in one direction, and the first member The projection part includes a second member that is freely held and biased to rotate in one direction, and the projection part is moved in the direction in which the cartridge is inserted into the device to be loaded. While rotating the second member in a direction opposite to the rotation biasing direction thereof, the protrusion is positioned between the second member and the fixing claw by climbing over the second member, and further When the cartridge moves in the insertion direction, the protrusion is prevented from moving by the fixed claw, and the opening of the cartridge is brought into an open state in conjunction with relative movement between the cartridge and the protrusion. and by movement in the direction of withdrawing said cartridge from the device. In conjunction with relative movement between the cartridge and the protrusion due to movement of the protrusion being prevented by the second member, the opening of the cartridge is brought into a closed state; When the cartridge and the protrusion move together, the protrusion causes the second member to rotate integrally with the first member in a direction opposite to the direction in which the second member is urged to rotate, and A cartridge opening/closing device characterized in that it is configured to release the engagement between the protrusion and the second member.