JPS5894159A - Tape housing case loader and unloader - Google Patents

Abstract

PURPOSE:To perform unloading easily and surely, by ejecting a tape housing case out of a holder, when an unloading lever releases the lock with a lock lever and is restored rotatably at the unloading. CONSTITUTION:In operating the ejecting mechanism at the unloading of a tape housing case 17, a driving mechanism 8 is operated and a holder 14A is returned from a case loading position to a case inserting position along a guide hole 4A. In this case, the holder 14A is incorporatedly moved with a holder 14B, and when a folding section 31 of lock levers 27A, 27B is turned in contact with the front ridge of openings 3a, 3b of an upper plate 2A, an engaging recess 32 and an engaging pin 36 are unlatched and unloading levers 28A, 28B are rotatably restored. As a result, the body 17 is ejected out of a holder 14 with the engaging pin 36 of the unloading levers 28A, 28B.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape storage case attachment/detachment device that allows the tape storage case to be inserted and removed easily and reliably.

As is well known, the tape storage casing in front loader/getaibu VTRs (Video Cheap Recorders) is inserted into a holder driven by a motor, and the holder moves horizontally and vertically. The device is inserted into the main body of the device in a guided manner, and when ejected, the device is automatically ejected by performing the opposite operation to that used during insertion. The important thing here is that the amount of protrusion of the tape storage case from the main body of the device at the time of ejection must be larger than the amount of protrusion during insertion. We are ensuring the tie-up and the amount of tape that can be pulled out of the tape storage case during ejection. A conventional method for creating a difference in the amount of protrusion is to reduce the rotation from the motor, which is the drive source, by using a transmission means consisting of a driving part and a driven part connected with one of a group of reduction gears with play. There are two known types, such as the VH8 system, which is equipped with a tape storage case (VH8 system), and the system that allows the position of the tape storage casing to be changed rapidly using a click-operated link mechanism (the Beta system). Since it is provided on the gear, the load is large, and this has the disadvantage that the tape storage case does not necessarily feel like an electric light when it is inserted. On the other hand, in the latter case, there is a disadvantage that the device becomes complicated, and it is also necessary to reduce the horizontal movement of the holder so as to place as little load on the link mechanism as possible.

The present invention has been made in view of the above-mentioned points, and includes an ejection lever that is always biased in the direction of ejecting the tape storage case, and a lock lever that locks the ejection lever. When the ejection lever is unlocked by the lock lever and rotates back during the ejection operation, the tape storage case is pushed out from the holder, thereby reducing the amount of protrusion of the tape storage case that is pushed out during insertion and ejection. Moreover, this book provides a tape storage case attachment/detachment device that allows the ejection operation to be performed easily and reliably.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is an exploded perspective view showing an embodiment of the tape storage case attaching/detaching device according to the present invention. In the same figure, the tape storage case attaching/detaching equipment company, which is indicated by reference numeral 1 as a whole, has an upper plate 2A made of a metal plate, etc., and a pair of left and right side plates 21 facing each other.
1.2C, the frame 2 is formed into a substantially low shape and is open from front to back and downward, and is provided with a frame 2 constituting a device fixing portion that is housed and fixed within a device main body (not shown). A pair of left and right openings 3m and 3b, each forming an engaging portion, are formed in the center of the upper plate 2m. On the other hand, a pair of guide holes 4mm, 4B and a pair of guide holes 5A, 5B are formed in the pair of side plates 2B, 2C so as to correspond to each other. In this case, the guide holes 4 of each side plate 2B, 2C
The guide holes 4B and SB are formed in a substantially inverted shape and have a horizontal part A and a vertical part opening, and are provided on the front end side of each side plate 2B, 2C. Each side plate 21.2
It is simply formed to be long in the front direction above the rear end of C.

In addition, on the outer surface of each side plate 2B, 2C, a motor (not shown) constituting the drive mechanism 7 of the holder 14, which will be described later, and several reduction gears (however, only the final gear 8 is shown in the figure) are linked. A lever 9 is provided, and the link lever and the final gear 8 constitute a rotating member 10.

The plurality of reduction gears are used to reduce the rotation of a motor (not shown) and rotate the link lever 9, so each reduction gear is connected to the side plate 2B.

The shafts 10 are each fixed to a plurality of shafts 10 rotatably supported between the shafts 2C. In this case, the final gear 8 is shown in the figure.
Only one shaft 10 to which is fixed is shown, and shafts for other reduction gears are omitted. Then, the outer lii! of the final gear 8 disposed on the side plate 2B side! A retaining bottle 11 (see FIG. 2) for operating an opening/closing lever 4S, which will be described later, is installed near the outer periphery of the lever 1j. on the other hand,
The link lever 9 is fitted onto the shaft 10 of the final gear 8 and positioned inside the gear @O, and its tip protrudes from the final gear 8 and has an elongated hole 12, and is formed in a circular arc shape. A cam 13 for operating a door lock lever 44, which will be described later, is integrally provided on the circumferential surface of the base.

Additionally, the final gear B and the link lever 9 are rotated together.

The holder 14 is guided and held by guide holes 4 and 5 formed in each of the side plates 2B and 2C.
s1 holder 14A and guide holes 4mm, 4B and 5A
, and a second holder 14B that is guided and held by the SB, and is disposed within the frame 2. The first holder 14m holds the tape storage case 1T in a freely insertable and removable manner, and is moved horizontally and vertically along the guide holes 4A and 5m by the drive of the drive mechanism γ. , the housing insertion position shown by the chain line in Figure 2, and the
It is configured to reciprocate between the housing mounting positions shown by chain lines in the figure. Therefore, the first holder 14 is installed on the outer surface of both side plates I1 and 18b, and is commonly inserted into the guide holes 4 and 5A of the side plates 2B and 2C and the elongated hole 12 of the link lever 9. A pair of drive bins 19 are provided. And this first holder 14
The frame is normally stopped at the housing insertion position shown by the chain line in FIG. 2, and is located at the front opening of the frame 2, that is, slightly behind the housing insertion opening 20.

The second frame 14B is formed into a substantially mouth shape, so that it extends downward from the flat plate portion 21 that covers the upper part of the first holder 14 and the center of both side edges of the flat plate portion 21, It integrally has a pair of left and right guide arms 22&, 22b which are slidably inserted into the guide hollow parts 23 and 24 provided in the side plates 11m and 111b of the first holder 14m, respectively, and has both side edges. Each side plate 21.2 is provided at the front and rear ends.
A pair of guide bins 25&, 2Sb are slidably inserted into the guide holes 4A, 4B and 5mm, 5B of C.
are planted in each. In this case, the front guide bin 25& is located in front of the drive bin 1g of the first holder 14m. On the lower surface side of the flat plate part 21 of the second holder 141, a bottle 28. By being pivotally supported by So, it is rotatably arranged in a horizontal plane, and these levers constitute a discharge mechanism 15. The pair of lock levers 27A and 27B are formed in an abbreviated shape, one end of which extends in one direction of the other lever, and the tip end thereof is bent upward to open the openings 3m and 3b of the two upper plates.
A retaining portion 31 is formed by protruding from the rear end, and an engaging recess 32 is formed in each inner corner portion of the other end extending rearward.

These pair of lock levers 2T and 27B are always given the habit of rotating clockwise and counterclockwise by a return spring 33, respectively. Note that one end of the spring 33 that biases each lock lever 2T and 27B is locked by one side edge of an opening 34&, 34b formed in the flat plate portion 21 of the second holder 14B.

On the other hand, the pair of ejection levers 28m, 2111Fi,
Similarly, the ends, which are bent into an abbreviated shape and extend forward, are connected to each other by a spring 35, so that the tape storage housing 17 is always rotated in the counterclockwise and clockwise directions, that is, in the direction in which the tape storage case 17 is ejected. Each of the lock levers 2 is provided at the other end extending outwardly.
Engagement pins 3s that can engage with the engagement recesses 32 of 7A and 27B are implanted, respectively. the pair of lock levers 27A, 27B and the pair of ejection levers 2,
28B is normally maintained in the state shown in FIG. 5 in the state in which the tape storage case 1T is not inserted, so that each ejection lever 28m, the locking bin 36 of 21B, each lock lever 2Tm, and the locking bin 36 of 2711 When the tape storage case 1T is inserted without engaging the engagement recess S2, the case 1T presses the engagement bin 3@, and each ejection lever 28M, 28B is moved clockwise as shown in FIG. and counterclockwise so that the engagement pin 36 engages with the engagement recess 32 of each lock lever 21B.

A door 41 that can be opened and closed is disposed in the housing insertion port 20 and whose upper end is supported by a shaft 4θ, and is always urged in a direction to close the insertion port 20 by a spring (not shown).

In this case, the door 41 may be closed by its own weight without relying on the spring K. The shaft 40 is connected to the pair of side plates 2
It is rotatably supported above the front ends of B and 2C. Further, the opening/closing lever 43 is provided on the pair of side plates 2B and 2C.
A shaft 45 that rotatably supports the door lock lever 44 in common is supported. The opening/closing lever 43
is provided only on the left side plate 2B, and at one end there is an engagement pin 47 that is inserted from the outside into a hole 46 provided in the side plate 2B and later engages with the left end of the door 41 from the front. The locking pin 11 (of the final gear 8) is installed at the other end.
A substantially hook-shaped engaging portion 4s that is pressed by a screw (see FIG. 2) is integrally provided.

On the other hand, the door lock lever 44 is attached to each side plate 2B.

2C, one end 44& of each pair of left and right υ is disposed on the outside of each side plate 2B,
The other end 44b, which is inserted into the inside of the flap 2C and extends rearward, is located below the rear side of both left and right ends of the door 41 as shown by the @ line in FIG. It comes into contact with the surface and is pressed by the cam 13. Note that the engagement pin 11 of the final gear B and the cam 13 of the link lever 9 are placed at positions shifted by a predetermined distance in the rotational direction, so that the opening/closing lever 43 is in the third position when the tape storage case 1T is inserted. As shown in the figure, the door 41 is held in the open state by being pressed and rotated by the engagement pin 11, and when the tape storage case 1T is set at the case attachment position, the door 41 is engaged as shown in FIG. It is released from the bin 11 and returns to rotation, allowing the door 41 to close.

On the other hand, after the tape storage case 11 is set at the case mounting position and the door 41 is closed, the door lock lever 44 is pressed and rotated by the cam 13 of the link lever 9 as shown in FIG. One end 441 thereof is raised and positioned at the back of the door 41 to prevent the door 41 from being opened.

Next, the operation of the tape storage case attaching/detaching device 1 having the above configuration will be explained.

FIG. 2 shows the state before the insertion of the tape storage case 1T begins. In this state, the engagement pin 11 of the final gear a is in contact with the lower end of the engagement portion 48 of the opening/closing lever 43, while the other end 44b of the door lock lever 44 is in contact with the base peripheral surface of the link lever S, and one end 44a is in contact with the bottom end of the door lock lever 44. 41 is maintained in a state where it can be opened and closed freely. When the tape storage case 1T is inserted into the case insertion port 20, the door 41 is opened by the case 17, and when the tape storage case 1T is further inserted, the other end of the tape storage case 1T is disposed inside the main body of the apparatus (not shown). Operate the switch.

By the operation of this switch, the power is turned on to drive a motor (not shown), and its rotation is transmitted to a reduction gear disposed on the outer surface of each side plate 2B, 2C, and the rotation speed is reduced to a predetermined rotation speed. At this time, the final gear S and link lever 9Fi
, in order to rotate clockwise in FIG.
Move to the right along the 15th wall. For this reason, the first
The hole R-14 and the second holder 14B (see FIG. 1) move together to the right as shown in FIG. By moving to the opening, the first holder 14A is lowered as shown by the chain line in FIG. 4, and the tape storage case 1T is set at a predetermined case mounting position. At this time, the second holder 14B simply moves horizontally to the right along the guide holes 4M, 4B, 5A, and SB, but does not move downward. Note that vertical movement of the first holder 141 relative to the second holder 141 is permitted by guide arms 22&, 22b of the guide frame 16 inserted into guide hollows 23.24 provided in both side plates 111SL, 18b.

When the final gear 8 rotates as the motor is driven, the locking pin 11 also rotates together with the gear 8, and the opening/closing lever 43
In order to press the engaging portion 48 of the opening/closing lever 43, the opening/closing lever 43 rotates clockwise in FIG. Then, just before the tape storage case IT reaches the case attachment position, the retaining bin 11 moves to the opening/closing lever 43 as shown in FIG.
It comes off from the engaging part 43 of. As a result, the opening/closing lever 43 is released from the engagement pin 11 and rotated back counterclockwise in FIG.

The drive mechanism γ is stopped immediately after the door 41 is closed.

At this time, the link lever 8 stops with the cam 13 pressing the other end 44b of the door lock lever 44 as shown in FIG. Therefore, the door lock lever 44 is rotated clockwise by a small angle. For this reason, the door lock lever 4
One end 44& of 4 is raised and located at the back of the door 41 to prevent the door 41 from being opened. Therefore, the door 41 prevents the insertion of the next tape storage case, thereby preventing failure or damage to the apparatus itself.

On the other hand, the pair of ejection levers 28 are in the state shown in FIG. 5 before the tape storage case 1T is inserted.

28B indicates that the engagement pin 3 of the housing 17 is inserted.
6 is pressed, the lock levers 27 are rotated clockwise and counterclockwise as shown in FIG.

It is temporarily locked by engaging with the engagement recess 36 of 27B. The amount of protrusion of the tape storage case 1T at this time of locking is dl, and at this time, the above-mentioned switch is activated and the motor is driven. Note that the locked state of the ejection levers 28 and 28B by the lock lever IT and 21B is maintained even after the holder 14 starts moving and reaches the housing attachment position, and is maintained during the ejection operation of the tape storage housing 1T. It is configured to be released.

That is, when the eject mechanism is operated by operating an eject button (not shown) when ejecting the tape storage case 17, the drive mechanism 8 performs the opposite operation to that described above, and moves the first holder 14m into the guide holes 4m and 5A. along the casing from the casing mounting position to the casing insertion position. At this time, the first holder 14
A is the second after changing from vertical movement to horizontal movement.
Although it moves integrally with the holder 14B, just before it stops at the housing insertion position, the pair of lock levers 2
7A.

The bent portion 31 of 27 m is in contact with the front edge of the openings 3 m and 3 b of the upper plate 2A, resists the spring 33 (see Fig. 1), and is rotated counterclockwise and clockwise in Fig. 7, respectively. Then, the engagement recess 32 and the engagement pin 36 are disengaged, and the pair of ejection levers 28 are released.

28B is rotated back counterclockwise and clockwise in FIG. 7 by the force of the spring 35 (see FIG. 1), respectively.

As a result, the tape storage case 17 is pushed out from the holder 14 by the pair of levers 28 and 28B. Moreover, at this point, the drive mechanism 8
The door lock lever 44 releases the locked state of the door 41C+ in conjunction with the operation in the opposite direction, and the opening/closing lever 43 operates immediately thereafter to hold the door 41 in the open state. Tape storage case IT forcibly pushed out by the holding bin 36 of 2@1
Since the front end of the tape is protruded from the housing insertion opening 20 by a distance d, and this protrusion amount d3 is larger than the protrusion amount d1 at the time of insertion (see Fig. 6), it is easy to take out the tape storage housing 17. Make it. Then, the tape storage case 1T is pushed out by the ejection levers 28m, 28m, and the driving of the drive mechanism 7 is stopped at the same time as the holder 14 reaches the case insertion position.

In the above embodiment, the tape storage case 1T is pushed out using the ejection levers 28M and 28B, but the present invention is not limited to this, and it goes without saying that one ejection lever may be used.

As explained above, the tape storage case attachment/detachment device according to the present invention locks the ejection lever disposed on the holder with the lock lever when the tape storage case is inserted, and unlocks the ejection lever when ejecting the tape storage case. As a result, the ejection lever rotates back and the tape storage case is forcibly pushed out from the holder, so the configuration is simplified and the amount of protrusion of the tape storage case during ejection can be compared with the amount of protrusion during insertion. It can be made larger and the ejection operation can be performed easily and in a secure manner.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the tape storage case attaching/detaching device according to the present invention, FIGS. 2 to 4 are diagrams for changing the installation operation of the tape storage case between stations, and FIG. 5 7 is a diagram for explaining the operation of the ejection mechanism, and FIG. 8 is a diagram for explaining the locking of the door. 1... Tape storage housing attachment/detaching device, 2... Frame (device fixing part), T... Drive mechanism, 14%--H"
Goo・14A----First holder 1, 14B...Second holder, 1T...Tape storage housing, 20...
・Case insertion port, 27A. 271m-...Lock lever-12aA, 211B.
...Ejection lever, 33.35...Spring. Patent applicant Tamura Electric Manufacturing Co., Ltd. Agent
Masaki Yamakawa (and 1 other person) Figure 5 I Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] A holder that holds the tape storage case in a freely insertable and removable manner and moves back and forth between the case insertion position and the case installation position using a drive mechanism, and a holder that is rotatably disposed on this holder and constantly ejects the tape storage case. and a lock lever that locks the ejection lever when the tape storage case is inserted into the holder against the urging force of the ejection lever. When the tape storage case is ejected, just before the holder returns to the case insertion position, the holder comes into contact with the device fixing part and is rotated to unlock the ejection lever, and the ejection lever A tape storage case attaching/detaching device characterized in that the tape storage case is rotated and returned by unlocking of an ejection lever to push out the tape storage case from the holder.