JPH03286463A - Cassette loading device - Google Patents

Abstract

PURPOSE:To realize the highly precise tray transfer control of simple constitution by providing a tray transferring means which elevates/lowers and transfers a tray nearly vertically to the loading position of a cassette tape after transferring the tray nearly horizontally from a cassette loading/unloading position to the upper part of a recording medium driving part. CONSTITUTION:The device is constituted so that a tray assembly 59 to/from which the cassette tape 200 is loaded/unloaded is transferred nearly horizontally from a slot-out position protruding rom a cabinet 210, and after that, it is transferred nearly vertically to a slot-down position where the cassette tape is loaded to a tape driving part, and the tray is transferred reciprocatively between the slot-out and the slot-down positions. Then, the tray transferring means executes the loading of the cassette loaded in the tray to the recording medium driving part and the unloading from the tape driving part by elevating/lowering and transferring the tray vertically after transferring it horizontally from the cassette loading/unloading position protruding from the front face of the cabinet 210. Thus, the highly precise tray transfer control of the simple constitution is realized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention (Industrial Field of Application) The present invention relates to a recording/reproducing device such as a video tape recorder (VTR), and particularly relates to a recording/reproducing device such as a video tape recorder (VTR), and in particular, to This invention relates to a cassette loading device.

(Prior Art) Conventionally, in a cassette loading device for a VTR, a cassette tape is inserted horizontally from an insertion opening, and the inserted cassette tape is transferred to a tape drive section via a transfer mechanism for loading and unloading. A front loading method and a so-called linear skating method in which a cassette tape is directly attached to and removed from an entire tape drive unit that is transferred to the outside of a cabinet are known.

However, with the former front-loading method, the inserted cassette tape is delivered to a transfer mechanism inside the cabinet and transferred, making it difficult to confirm the loading operation, so the reliability of loading is not satisfactory. It wasn't. Although the latter linear skating method is satisfactory in that it allows the operator to load the cassette tape reliably, it is difficult to do so because the entire tape drive unit is moved outside the cabinet. There was a problem in that the structure of the tape drive unit including the transport mechanism was extremely complicated.

Therefore, there is a need for the development of a cassette loading device that can confirm the loading of a cassette tape as in the conventional linear skating system, and that can also have a simplified configuration.

As a cassette loading device that satisfies these demands, a tray system is proposed in which a tray for transferring and holding cassette tapes is installed in the cabinet and can be moved in and out, and this tray is used to attach and detach the tape to the tape drive section. It is being In this tray-type cassette loading device, it is not enough to simply arrange the tray so that it can be moved in and out of the cabinet; instead, the cassette tape loaded on the tray must be transferred to the tape drive unit and then loaded/unloaded. , various configurations are required to organically couple the tray and tape drive.

However, the structure for organically connecting the tray and the tape drive section is different from the conventional front loading method or linear skating method, in which the tray on which the cassette tape is loaded can be moved in and out of the cabinet. Due to the method of placing the cassette tape in the tray, transporting it to the tape drive unit, and loading it, it is difficult to directly use the structure of conventional methods, so we have ensured a simple configuration. In addition, a configuration is required to realize highly accurate and reliable tray transfer control.

(Problems to be Solved by the Invention) As described above, the cassette loading device in which the tray is arranged so that the tray can be moved in and out of the cabinet is different from the conventional method, so that high-precision tray transfer control is possible. It is required to develop a simple configuration to realize this.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a tray-type cassette loading device that has a simple configuration and can realize highly accurate tray transfer control.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a tray for attaching and detaching a cassette containing a recording medium so as to be freely removable from the front surface of the cabinet,
In a cassette loading device that transfers and loads the cassette tape to a recording medium drive section in the cabinet through this tray, the tray is moved approximately horizontally from a cassette attachment/detachment position protruding from the front surface of the cabinet to the recording medium drive section. After being transported to the top, the tray transporting means is provided for vertically transporting the force cera tape up and down to a cassette loading position where it is loaded into the recording medium drive section.

(Function) According to the above configuration, the tray transfer means horizontally transfers the tray from the cassette attachment/detachment position protruding from the front surface of the cabinet, and then vertically transfers it up and down, thereby transferring the recording medium of the cassette mounted on the tray. The tape is loaded into the drive unit and removed from the tape drive unit. As a result, highly accurate transfer control of the cassette using the tray is realized.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

1 to 3 show a cassette loading device according to an embodiment of the present invention, FIG. 1 shows the tray slot out state in which the cassette tape can be attached and removed, and FIG. 2 shows the state in which horizontal movement is completed. (vertical movement completed state), and FIG. 3 shows the state on the way from the state of FIG. 2 to the tray slot down state in which the cassette tape is loaded into the tape drive unit. That is, the cassette loading device according to the present invention transports the tray assembly 59 shown in FIG. 4 onto which the cassette tape 200 is attached and removed approximately horizontally from the slot-out position protruding from the cabinet 210 as shown in FIG. It is configured to reciprocate between the slot-down position where the tape is transferred approximately vertically using a mechanical section and loaded into the tape drive section, and includes a guide section that reciprocates the five tray assemblies and a guide section that reciprocates the five tray assemblies. It consists of an operating mechanism that drives the motor back and forth. Note that moving the tray in the cabinet from the slot-out state to the slot-down state will be referred to as slot-in.

For convenience, here, we will explain the front surface of the VTR set assuming that the operator (user) is standing facing the ejection port side of the cassette tape 200 of the VTR set when the VTR set is placed horizontally. (A direction), backward (B direction), left (C direction), right (D direction), top (C direction), and bottom (F direction).

First, the tray section will be explained. That is, as shown in FIG. 6, the tray assembly 59 includes a tray frame 60, a tray plate 61, pop-up sliders 62, 66, and a pop-up slider spring 64 as main elements.
．． 681, left and right pair of pop-up levers~70, left and right pair of pop-up lever springs 7], cassette lid lock lever 72, release lever spring 73, click lever 74.78, click lever spring 75.7
9, tray rail 76.80, cassette stopper 82
, a cassette stopper spring 83.

First, the tray plate 61 is attached to the tray frame 60.
A tray assembly 59 is formed which is screwed and fixed to form a holder for the cassette. An upwardly bent portion 61a is provided at the rear center of the tray plate 61 to prevent erroneous insertion of the cassette tape 200 from front to back and upside down. Further, upwardly bent portions 61b are provided on the left and right rear sides of the tray plate 61 to serve as stoppers in the front and back direction when a cassette tape is loaded. Furthermore, the tray plate 61 is provided with a plurality of through holes 61c opened to avoid contact with the tape drive unit in the slot down state. The through hole 61c protrudes from the front surface of the cabinet in the slotted-out state, has a large area through which a hand or finger can pass, and is formed up to the front side (discharge side) side wall of the tray frame 60 that protrudes from the front surface of the cabinet. The shape of this through hole 61c is designed with operator safety in mind.
Even if the operator's hand or fingers are pinched, they will be pinched not by the thin end face of the tray plate 61 but by the wide front frame 61, thereby preventing the hole from forming. This greatly reduces the force per unit area of the through hole 61c, thereby almost eliminating the risk of perforating the hand or fingers.

Note that the shape of the through hole 61c is such that the direction in which the hole becomes smaller from the rear to the front forms an angle of about 45 degrees or less with respect to the front-back movement direction. This is a measure to prevent this because if the angle becomes large, there is a risk that the thin end face of the diagonal portion and the cabinet 210 will pinch and create a diameter hole.

Further, the through hole 61C may be provided one larger size so that the tray plate 61 has a substantially U-shape, as shown in FIG. 7, instead of being divided into a plurality of holes. And this through hole 61
In addition to the above-mentioned safety measures, C also has the function of preventing the installation of anything other than a regular cassette tape by inserting a foreign object, such as a VH8-C cassette, into the hole and falling down.

Rack gear parts 60 are provided at the lower left and right sides of the tray frame 60.
a and 60b are provided, and horizontal movement is performed by tray drive gears 52 and 53, which will be described later. Tray rails 76 and 80 are fixed with screws to the left and right sides of the tray frame 60, respectively, and the left and right upper sides formed by the left side of the tray frame 60 and the tray rail 76, and the right side of the tray frame 60 and the tray rail 80 are fixed. Horizontal movement is guided by the lower grooves 60c, 60d and 76a, 80a. A pair of lower left and right grooves 76a, 80a engage with a pair of guide rollers 4 installed in the front and rear inside of both side plates of the lifter 2 of the tray lifter assembly 1, which will be described later. This roller is made of an electrically conductive material and ensures electrical conductivity between the tray rails 76 and 80 and the tray lifter assembly 1. The bottom pair above! The open ends of 76a and 80a are tapered vertically to facilitate engagement with the guide roller 4. A pair of upper grooves 60c.

60d engages with door lock levers 86 and 87, which will be described later, and is guided in horizontal movement, and also serves as a door lock lever.
86 and 87 are controlled. The pair of grooves 60 on the upper side
The open ends of the levers c and 60d are tapered vertically and inwardly to facilitate engagement with the door lock levers 86 and 87, ensuring highly reliable operation.

The height of the tray frame 60 is approximately from the center to the front side when the cassette tape 200 is placed on it.
0 can be seen slightly, and the front center part is set even lower than the left and right parts, and the left and right side walls of the frame are arranged from bottom to top so that the cassette tape 200 can be easily installed. A sloping section of 60 m is provided which is inclined in a direction in which the area gradually decreases, and the cassette tape 2
This was done in consideration of the ease of attaching and detaching the 00. The left and right side walls of the frame are formed in a step shape with a convex portion 60e that is large enough to almost hide the cassette tape and has a slight clearance between the opening hole of the cabinet 210 through which the five tray assemblies go in and out at the rear thereof. . The convex portion 60e has an inclined portion 60n inclined in a direction in which the width gradually decreases from bottom to top and an inclined portion 60p inclined in a direction in which the width gradually decreases from the front to the rear. Although the ease of attaching and detaching the tape 200 is taken into consideration, in order to avoid damaging the cabinet 210 by applying the cassette tape 200 around the opening hole of the cabinet 210 when attaching the cassette tape 200, the tape is placed before hitting the cabinet 210. This has the effect of guiding people to the correct location. The front, left and right, upper and lower corners of the tray frame 60 are formed into a curved shape with a predetermined radius to ensure safety so that the operator does not make a hole with the edge. As shown in FIG. 8, a curved portion 60k having substantially the same shape as the radius of the corner of one end (rear end) of the cassette tape 200 is formed at a corner of the inner circumferential wall on the front side of the tray frame 60. As shown in FIG. This is to prevent the cassette tape 200 from being inserted backwards and forwards in reverse.If the cassette tape 200 is inserted backwards and forwards, the outer portion without the radius will face the curved portion 60k of the tray frame 60. Therefore, it is not possible to insert it. Although various other measures have been taken to prevent the cassette tape 200 from being inserted backwards and forwards in reverse, this method makes it even more reliable.

A hole 60f penetrating from the inside to the outside is provided on the left side of the front surface of the tray frame 60. As shown in FIG. 9, this hole 60f is connected to the C cassette unopened detection lever 2 of the C cassette adapter 250 for the well-known VHS-C cassette.
51, and is height-wise aligned with the groove 60c on the lower left side so as not to spoil the appearance. If C
C cassette adapter 250 with no cassette opening
When the C cassette is inserted into the slot, the C cassette unopened detection lever 251 is inserted into the groove 6 on the lower left side as shown in FIG.
Since it protrudes into the groove 762 of the tray rail 76 through the slot 0c, it is engaged by the guide roller 4 of the tray lifter assembly 1 during slot insertion and cannot be slotted in any further. Detection works and it is discharged. Therefore, C cassette adapter 2
50 or parts of the VTR body. In addition, the hole 60f on the left side of the tray frame 60 is provided with an inclined part 601 for guiding the detection lever, which is inclined so that it is lower on the front side and higher on the slot-in direction. Or it was inserted into the slot by mistake and ejected when an abnormality was detected.
When popping up, which will be described later, the C cassette unopened detection lever 251 is smoothly accommodated in the C cassette adapter 250 due to the inclined portion 601), and can be taken out. In addition, through holes 60g and 60h are provided at the left and right rear portions of the tray frame 60, respectively, through which transmitted light passes from the inside to the outside for tape end detection. This height matches the lower grooves 76a and 80a and is designed not to spoil the appearance.

The tray rails 76 and 80 fixed to the tray frame 60 with screws are connected to the rack gear portion 6 of the tray frame 60.
A rack gear portion is provided on the lower side so that 0a and 60b are continuous. Click levers 74 and 78 are located between the tray frame 60 and the tray rails 76 and 80, respectively.
is rotatably held. This click lever 74
．． 78 are click lever springs 75.79 respectively
The grooves 76a and 80a on the lower side of the tray frame 60 are biased in the direction of narrowing the width, and when the tray assembly 59 finishes moving in the slot-in horizontal direction, the tray lifter assembly 1
The position of the tray assembly 59 relative to the tray lifter assembly 1 is maintained by engaging the guide roller 4 of the tray lifter assembly 1. The engaging portions of the click levers 74, 78 with the guide rollers 4 have a predetermined angle, so that the tray assembly 59 can be pulled in and held if the positional deviation is within a predetermined range. At the rear of the tray rails 76 and 80, tray rail position regulating parts 77 and 81 are respectively provided, and when the tray assembly shifts to vertical movement after completing the horizontal movement of the five slots, the rear side chassis tray regulating parts 12 and 12, which will be described later, are provided. .28 is engaged. The tray assembly 59 is basically held by the click levers 74 and 78, but it may separate if an unexpected external force is applied, but the amount by which it separates can be regulated by this, and after the external force is released. can be retracted and held as described above. In addition, there is a bending part for guiding at the beginning of engagement at 12.28 after the side chassis tray regulating part, so when the five tray assemblies move to vertical movement after completing the slot-in horizontal movement, the amount of horizontal movement may vary slightly. Even if there is a shortage, you can draw in with this guidance. Therefore,
The position of the tray assembly 59 can always be maintained with high precision when the slot is down, and especially when the slot is out,
A shaft gear 18° 34 for transfer switching, which will be described later, and a rack gear section 76b, 8 at the rear upper part of the tray rail 76.80.
0b can mesh without causing a phase shift,
Stable operation can be obtained. Further, the tray rail position regulating portion 77°81 is located at the side chassis 10 when the tray assembly 59 is in the slotted out state as shown in FIG.
1 in front of the side chassis tray position regulating part provided in 26
3. It rides on the upper end surfaces 13a and 29a of 29. As a result, the tray assembly 59 is biased in one direction with respect to the clearance between its grooves 60c and 60d, the guide roller 4, and the door lock levers 86 and 87, and the vertical play of the tray assembly 59 in the slot-out state is reduced. This increases the quality of the product. Regarding left and right backlash, in addition to the guide by the tray lifter 2, a pair of constriction parts provided inside each of the front 13.29 of the side chassis tray regulating part and the inside of each rear of the side chassis 10.26 are used. By accurately guiding the left and right sides of the five tray assemblies 10a and 26a, smooth movement is ensured (see FIG. 13). Furthermore, in the slot-out state, the elasticity of a tray detection lever 89, which will be described later, is used to bias the left and right play of the tray assembly 59 in one direction, thereby reducing the left and right play and improving the quality of the product. That is,
The tray rail 76.80 has a rack gear portion 76b,
80b is engaged with the shaft gears 18, 34, a pair of the front side of the guide roller 4 is guided to the upwardly shifted grooves 60c, 60d, and is once pushed up toward the rear side of the tray assembly 59 (14th (See figure (a)). As a result, the tray rail 76.80 is connected to its rack gear portion 7.
6b80b rear flat part or rack slider 14°3
regulating the flat parts 18a, 34a of the shaft gear 18.34 meshing with the rack gear parts 14f, 30f of 0;
The postures of the shaft gears 18, 34 are corrected (see FIGS. 15(a), (b), and (c)).

After that, the shift gears 18 and 34 are moved to the tray rail 76.
．． 80 rack gear parts 76b, 80b,
As will be described later, the rack slider 14.30 is operated (see FIG. 15(d)) and the tray assembly 59 is lowered. Further, in the lockout state shown in FIG. 14(b), the lower rack gear portion 60 of the tray frame 60
a.

As shown in FIG. 16, the tray drive gears 60b are once guided to move in a direction substantially parallel to the direction of movement, and after the backlash is absorbed, the left and right tray drive gears 52
．． 53 small gear portion 52a.

By starting to mesh with 53a, the small gear parts 52a, 5
This has the effect of preventing gear skipping, which tends to occur at the beginning of meshing between the rack gear parts 3a and the rack gear parts 60a and 60b.

A cassette lid lock release lever 72 is provided inside the frame on the right rear side of the tray assembly 59 so as to be pivotally supported by a tray frame 60 and a tray plate 61. The cassette lid lock release lever 72 has a lid lock release portion 72a1 and a boss portion 72b, is provided so as to be rotatable left and right, and is biased toward the inside of the tray assembly 59 by a release lever spring 73 (see FIG. 17). . As a result, when the cassette tape is stored in the tray, the lid lock release button 202 of the cassette tape 200 is pressed to release the lid lock. Since the lid lock release portion 72a of the cassette lid lock release lever 72 is tapered from the inside to the outside in the front, rear, right and left directions, the cassette tape 200 can be smoothly attached and detached. Since the cassette lid lock release lever 72 is provided on the tray assembly 59, it has a very simple structure without any special operation for releasing the lid lock. Further, the cassette lid lock release lever 72 has a lid lock release portion 72a that is connected to the tray frame 60.
When the tray frame 60 is biased outward to the space between the inner surface and the groove, the boss portion 72b is projected into the groove portion 60d on the lower right side of the tray frame 60 (see FIG. 18(b)). As a result, it is detected that the cassette tape is inserted upside down. That is, when the cassette tape is inserted upside down, the cassette lid lock release lever 72 is pressed against the inner surface of the tray frame 60 by the lid lock release portion 72a being pushed against the side surface of the cassette half, as shown in FIG. 18(a). The boss portion 72b provided on the cassette lid lock release lever 72 protrudes into the groove portion 60d on the lower right side of the tray frame 60, so that the boss portion 72b guides the tray lifter 2 while being inserted into the slot. It is locked by the roller 4 and cannot be slotted in any further. Then, this is controlled by the control section 300 (
(see FIG. 11), the abnormality detection is activated, and the tray assembly 59 is ejected. Of course, in the normal insertion state, the lid lock release part 72a of the cassette lid lock release lever 72 engages with the lid lock release part of the cassette tape, so that the boss part 72b is not biased to rotate and is pressed against the tray frame 60. It is located inside the bottom of the groove 60d on the lower right side of the screen, and allows the subsequent transfer operation (see FIG. 18(a)).
reference).

The tray plate 61 is fixed to the tray frame 60 from below with screws. A conductive metal plate is used to ground the charged half of the cassette tape.

On one side (back side) of the tray plate 61, there is a cassette ejecting means called a selective pop-up mechanism, which is mostly located under the tray plate 61 or on the tray frame 6.
0 so as not to spoil the appearance from above (see FIGS. 19 and 20). That is, hop-up sliders 62 and 66 are arranged on the back side of the tray plate 61 with a predetermined interval. tray plate 61
There are outer spacer sleeves 6 on the left and right sides of the front side of the
5 is fixed with screws, and this spacer sleeve 65 engages with elongated holes 62a and 66a provided in the hop-up sliders 62 and 66, respectively, so that the pop-up slider 62
．． 66 is regulated in the horizontal and vertical directions and is held so as to be slidable back and forth. Spacer sleeves 65 fixed to the inner sides of the front left and right sides of the tray plate 61 with screws restrict the vertical direction of the inner ends of the pop-up sliders 62 and 66, respectively.

In addition, spacer sleeves 69 are fixedly fixed to the left and right rear of the tray plate 61.
One is engaged with square holes 62b and 66b provided in the pop-up sliders 62 and 66, respectively, to regulate the vertical direction of the pop-up sliders 62 and 66. This square hole 6
The pop sliders 62 and 66 can be rotated left and right around the spacer sleeve 65 on the front side of the tray plate 61 by the clearance between the pop sliders 2a and 66a and the spacer sleeve 69. Pop-up slider 62.66
The cassette detection bosses 63 and 67 are respectively implanted in such a manner that they pass through escape holes in the tray plate 61. When the cassette detection bosses 63 and 67 are energized outward, they are stored in storage locations provided on the left and right sides of the tray frame 60.

Each pop-up slider 62,66 is normally inwardly biased by a pop-up slider spring 64,68. When the cassette tape 200 is set on the tray assembly 59, the left and right sides of the cassette half of the cassette tape are biased outward. Pop-up slider 62
．． 66 are the tray plate 61 and the tray rail 7, respectively.
6. It is in contact with the tray plate 61 and the right tray rail 80 and is electrically conductive. As a result, as mentioned above, the static electricity charged on the cassette tape 200 is transferred from the cassette half to the pop-up slider springs 64 and 68.
from the guide roller 4 to the tray lifter 2, the tray lifter operating section 3, the side chassis 10. '26 and is grounded through the main chassis path.

A pair of pop-up levers 70 are pivotally supported on the left and right sides of the front side of the tray plate 61. Pop up lever 7
Normally, the tip of 0 is biased downward by the pop-up lever spring 71, and the pop-up lever storage hole of the pop-up slider 62, 66 is inserted so that the tip is slightly above the top surface of the tray plate 61. 62d.

It is stored in 66d. This is cassette tape 20
When 0 is set, it is not directly received by the tray plate 61, but first received by the pop-up lever 70, so that its cushioning effect reduces the impact noise during setting. The pop-up lever 70 has a curved portion 70a formed at its front end, and when the curved portion 70a engages with the hop-up slider 62.66 and the left and right pop-up sliders 62.66 slide rearward. , the tip of the pop-up lever 70 is lifted. When the pop-up slider 62, 66 returns to the front, the tip of the pop-up lever 70 lowers and returns to its normal position.

The pop-up sliders 62 and 66 are provided with bent portions 62c and 66c at their respective rear ends, so that when the pop-up sliders 62 and 66 are slotted out with a cassette tape set,
As mentioned above, the bent portion 62c is formed by the cassette tape.
, 66c are biased outward, the wrinkled portion 62c
, 66c engages with a pop-up control lever 57, which will be described later, during slot-out. As a result, the left and right pop-up sliders 62 and 66 are slid rearward relative to the five tray assemblies, and the pop-up lever 70
to lift the leading end of the cassette tape 200.

Therefore, in the slot-out state, the front side of the cassette tape 200 is lifted, making it easy to take out the cassette tape 200 (second
(see 1). In addition, as will be described later, the pop-up lever 70
When the tray assembly 59 is in the slot-out state, the pop-up sliders 62 and 66 are rotated and the bent portion 62c
, 66c are separated from the pop-up control lever 57, the pop-up lever 70 is reversed and escapes, so that the subsequent slot-in operation will not be hindered.

In addition, when the slot is out with no cassette tape, the pop-up sliders 62 and 66 are biased inward by the pop-up slider springs 64 and 68, so that the bent portions 62c and 66c at the tips of each By escaping to the inside of the pop-up control lever 57, the tip of the pop-up lever 70 is slotted out in a lowered normal state, and the cassette tape 200 can be smoothly installed there. If the cassette tape 200 is removed with the front side of the cassette tape 200 being lifted up during slot out, when the cassette tape 200 is removed as described above, the pop-up slider 62° 66 will move to the pop-up slider spring 64°. 68 and is biased inwardly at each bend 6
2c.

66c escapes to the inside of the pop-up control lever 57, the pop-up lever 70 is returned to its normal position by the pop-up lever spring 71, and the pop-up sliders 62, 66 are also returned toward the front along with this, and the next It becomes possible to mount the cassette tape 200.

Further, a cassette detection boss 63.67 is rotatably mounted on the pop-up slider 62.66 at a position shifted by a predetermined distance in the front-rear direction. As a result, when the cassette tape 200 is installed, the cassette tape 200 pushes the cassette detection bosses 63 and 67 outward, but this pushing and pushing becomes a moderate load by dispersing the force, so it is smooth. In addition, when the cassette tape 200 is removed from the tray assembly 59, the pop-up lever 70 and the pop-up sliders 62-66 are returned to their normal positions by the spring force of the pop-up slider springs 64-68. However, by shifting the timing of the return on the left and right sides, the impact noise during the return is dispersed and reduced. Furthermore, since the cassette detection bosses 63 and 67 are arranged at a predetermined distance in the longitudinal direction, even if the operator fails to take out the cassette tape 200, the tip of at least one of the pair of pop-up levers 70 will be removed. The cassette tape 200 is maintained in a lifted state, and subsequently the front side of the cassette tape 200 is maintained in a lifted state in which it is easy to take out, and the cassette can be taken out smoothly.

Note that when no cassette tape is stored in the tray assembly 59, the pop-up sliders 62 and 66
are energized inward, and the bent portion 62C at the tip of each
, 66c are located inside the pop-up control lever 57, but the pop-up sliders 62, 6.6
By setting the clearance between the square hole 62b166'b and the large spacer sleeve 69, the curved portion 62Cs 66 at the tip of each can be adjusted even when there is no cassette tape.
c can be configured to engage the inside of the pop-up control lever 57. In this case, in the slot-out state, the tip of the pop-up lever 70 is always raised, but when the cassette ejector 200 is attached and the cassette tape 200 is pushed down, the pop-up lever 70. Tray assembly 59 is pulled into the set by operation of pop-up sliders 62, 66 and pop-up control lever 57. Since the operation is the same as when the tray assembly 59 is pushed in, slot-in can be started by pushing down the cassette tape 200.

Although the series of pop-up mechanisms has been explained on the assumption that there is a pair of left and right mechanisms, mechanically it is also possible to use either one of the left and right mechanisms.

Also, as previously explained, the pop-up sliders 62 and 66 are normally biased inward by the pop-up slider springs 64 and 68, respectively. The cassette tape is held between the left and right sides by the cassette detection bosses 63 and 67 even when the cassette tape 200 is being loaded, and by suppressing the vibration of the cassette tape 200, it improves the set performance such as improving wow and flutter, improving jitter, and reducing noise. Effective for improvement.

Furthermore, a display member 91 called a pop-up demo card is detachably housed in the five tray assemblies, as shown in FIG. 21, for example, when the VTR set is shipped. This display member 91 displays, for example, instructions for handling, etc., and is folded back on the front side (front side) to form two pieces, an upper and a lower piece, and is normally energized in the closing direction (see Fig. 21). (indicated by a chain double-dashed line). The lower surface side of the display member 91 has an escape hole for operating the pop-up lever 70, and the cassette tape 20
It has a shape such as a gap between the bottom surface and the groove of 0, and is attached to the tray assembly 59 by being slightly press-fitted. The upper surface of the display member 91 is slightly smaller so that it can be opened and closed without contacting the tray assembly 59 when the display member 91 is in the slotted-out state, and as described above, various design characters and illustrations such as instruction manuals are displayed on the surface. The above-mentioned selective pop-up mechanism opens the pop-up lever 70 upwards when the slot is out, which has the effect of ensuring reliable handling for the purchaser (including the operator).

At the rear of the tray frame 60, a cassette stopper 82, which also serves as an internal blindfold, is pivotally supported so as to be rotatable in the vertical direction (see FIG. 23). The cassette stopper 82 has a shaft 82a as a rotation fulcrum.

82b is integrally provided, and this shaft 82a82b
However, using the elasticity of the mold, the tray frame 60
are inserted into the fulcrum holes 60i, 60j of. Then, the cassette stopper 82 is connected to the tray rail 7 as shown in FIG.
When the shafts 82a and 82b are screwed and fixed to the tray frame 60 with the 6.80 mm screws 111, the screws 111 restrict the amount of removal of the shafts 82a and 82b, and prevent them from coming off. Cassette stopper 8
2 is biased in the closing direction by a cassette stopper spring 83, and in conjunction with the slot-in operation, a cassette lid opener 3 provided on the rear reinforcing plate 37 (described later)
8, the cassette tape 200 is opened together with the lid 201. As shown in FIG. 24, the rotational fulcrum of the cassette stopper 82 is set to be in the same longitudinal and vertical position as the fulcrum of the lid 201 of the cassette tape 200, and the fulcrum of the rotation of the cassette stopper 82 is set to be the same as the fulcrum of the lid 201 of the cassette tape 200. is rotated.

A window 82C is provided near the right side of the cassette stopper 82, through which the tape running component 350 of the tape drive unit can be seen diagonally from above when the slot is opened (see FIG. 6). On the other hand, a similar hole 37a is provided in the rear reinforcing plate 37, so that inspections such as tape running adjustment of the tape drive unit can be carried out without any trouble when the device is assembled.
Tests can be conducted. In this way, the cassette stopper 82 also serves to hide the inside of the tape drive section when the slot is out, thereby preventing the operator's fingers or the like from entering the tape drive section. Further, as shown in FIG. 25, it also serves as a final stopper when the cassette tape is mounted by climbing over the bent portions 61b, which are stoppers in the front and back direction of the cassette tape provided on the rear left and right sides of the tray plate 61.

Next, the operating mechanism section will be explained. That is, the operating mechanism section includes a tray lifter assembly 1 that accommodates the tray assembly 59 and moves it up and down, side chassis assemblies 9 and 25,
Rear reinforcement plate 37 that connects and holds the side chassis assembly 9.25, front reinforcement plate 85, lower front reinforcement plate 55, drive motor 3
5, and a drive transmission section that transmits this driving force to the side chassis assemblies 9 and 25 in synchronization.

The tray lifter assembly 1 constitutes a lifting mechanism, and includes a lifter 2, a guide roller 4, and a leaf spring 5 for holding a cassette.
, a hold roller 6, a roller shaft 7, and a cassette detection switch 8. On the inside of the side plate of the lifter 2, guide rollers 4 or posts are rotatably supported at four locations on the front and back, and as mentioned above, the grooves 7 on the lower side of the five tray assemblies
6a.

86a to restrict the horizontal position of the tray lifter assembly 1, guide the movement in the front and back direction, and hold it in the vertical direction. On the outside of the lifter 2, lifter operating bins 3 are provided at four locations on the left, right, front, and rear, and the lifter operating bins 3 pass through a total of four guide holes in the side chassis 10.26, which will be described later, to the left side of the rack slider. and right 14.30
A total of four lift grooves 14a, 1.4b, 30a, 30
b. A total of four guide holes 10b, 10c, 26b, and 26c in the side chassis 10.26 are designed to guide the lifter operation pin 3 up and down. Each of the four lift grooves of the rack slider 14.30 has an inclined groove in the center for moving the lifter operating pin 3 up and down. Connected to the rear is a groove that holds it in the down position. As a result, the tray lifter assembly 1 is moved to the up position when the rack slider 14.30 is at the rear position, and to the down position when the rack slider 14.30 is at the front position, with the position of the tray lifter assembly 1 being restricted in the front-rear direction. In addition, the side chassis 10.26 in total 4 locations, 2 pairs front and rear.
guide hole 10b.

Among 10c, 26b, and 26c, one pair has a small clearance with the lid operating pin 3, and the other pair has a large clearance. This is to absorb manufacturing variations in parts and to maintain accuracy in regulating the position of the tray lifter assembly 1 in the longitudinal direction.

The lifter 2 has two large holes 2a on the left and right.

2b is provided. These holes 2a and 2b are for monitoring the torque cassette during set adjustment, and the cassette loading device is
Various inspections, etc. can be carried out while installed in the TR. Note that the left and right holes 2a of the lifter 2.

2b has its periphery reinforced by bending and drawing, so that it can hold the leaf spring 5.

Further, as shown in FIG. 26, three hold rollers 6 are arranged on the lifter 2 at a predetermined interval. Each of the hold rollers 6 is rotatably supported by a leaf spring 5 by a roller shaft 7, and fixed with screws at three locations near the center and left and right ends of the upper part of the tray lifter assembly 1, forming a cassette tape holding section. are doing. The leaf spring 5 is fixed in a predetermined manner, and when a cassette tape is inserted by a slot-in operation, it is further bent by a predetermined amount to press and hold the cassette tape. The hold roller 6 has the effect of smoothing the insertion of the cassette tape during slot-in operation,
This has the effect of preventing the top surface of the cassette tape from being scratched by sliding.

Further, the cassette tape holding section also functions to close the lid 252 of the C cassette adapter 250 when the lid 252 (see FIG. 9) is inserted in an open state. The position of the hold roller 6 is shifted by a predetermined interval in the front and back direction near the center with respect to the two places near the left and right ends, and serves as a planar surface press of the cassette tape 200 at three points. This greatly improves the stability of holding the cassette tape. In addition, hold roller 6
By arranging the cassette tape near the center and the surface pressing effect, the vibration of the cassette tape 200 is suppressed, thereby improving the setting performance such as improving wow and flutter, improving jitter, and reducing noise. Further, the setting performance can be further improved by forming at least the part near the center of the hold roller 6 with an elastic material such as rubber or a damping material, or by making the cassette tape holding part near the center have a distributed structure. I can figure it out.

The setting performance described above is achieved by holding the cassette tape from the left and right sides using the cassette detection bosses 63 and 67 and pressing the surface as described above, thereby realizing three-dimensional holding of the cassette tape in the horizontal and vertical directions. We are working to improve this.

Further, the tray lifter assembly 1 is provided with a total of two cassette detection switches 8 at the left and right rear of the upper part thereof, sandwiched between the lifter 2 and the leaf spring 5, respectively. The cassette detection switch 8 is connected to the leaf spring 5 as shown in FIG. 27(a).
Normally, it is pressed by this leaf spring 5 to be in the ON state, but when a cassette tape 200 is present, the leaf spring 5 is bent upward by a predetermined amount and becomes the OFF state (FIG. 3(b)). See. The structure is very simple because the leaf spring 5 is also used to operate the cassette detection switch 8.The two cassette detection switches 8 are connected in parallel to the control unit 300 again as shown in FIG. When five tray assemblies are inserted into the slots, the control unit determines that there is a cassette tape only when both of the two cassette detection switches 8 are OFF, and the five tray assemblies are inserted into the slots as described below. drive to the position. At this time, either one or both of the cassette detection switches 8 are turned ON.
In this state, the tray assembly 59 is stopped at a third stop position between the slot-out position and the slot-down position, which will be described later. In terms of timing, as shown in FIG. 28, the positions of the leaf spring 5, hold roller 6, and cassette detection switch 8 are set so that the cassette tape can be detected before reaching the third stop position. No special drive control is required to stop in position. This third stop position is a position where the tray assembly 59 is housed in the cabinet 210, and is near the horizontal movement end position or the vertical movement start position of the five tray assemblies. Since the tray assembly 59 is slotted in for the purpose of storing it in the cabinet 210 even without the cassette tape 200,
If the cassette tape 200 is not stored, the five tray assemblies are stopped and waited at the third stop position instead of the slot down position, thereby shortening the time from the eject signal to the slot out end, improving operability. I'm trying. And two cassette detection switches 8
are arranged on the left and right sides of the tray lifter assembly 1, so that the cassette tape 200 is not inserted in the long direction, or other than the regular cassette tape, for example, the C cassette β
Even when a cassette etc. is inserted, both are OFF (
OFF) and the tray assembly 59 does not go past the third stop position to the slot down position. Also,
The cassette detection switch 8 is normally in the ON state, so if for some reason the cassette detection switch 8
Even if the control unit 3 is turned OFF due to a failure, the control unit 3
By determining that 00 has a cassette tape, subsequent normal operations are possible. In this case, when the cassette tape 200 is not stored, it will go to the slot down position, but the control is controlled by turning on both photosensors 23 and 47 for tape end detection, which will be described later. The unit 300 detects an abnormality and discharges the five tray assemblies.

The side chassis assembly 9 includes a side chassis 10, a rack slider 14, a rack biasing spring 15, a drive gear 16, a shift gear spring 17, a shift gear 18, a sensor shutter 19, a shutter spring 20.
It is composed of a shirt shirt shaft screw 21, a sensor holder 22, a photosensor 23, and a tray down detection switch 24. The side chassis assembly 25 includes a side chassis 26, a rack slider 30, a rack biasing spring 31, a drive gear 32, a shift gear spring 33, and a shift gear 34.
, a drive motor 35, and a drive pulley 36. When the side chassis is assembled, 25 is 37 after the reinforcing plate and 85 before the reinforcing plate.
, are connected and held by the lower front reinforcing plate 55, etc., and have a gate-shaped structure as a whole. The side chassis left assemblies 9 and 25 are screwed to the main chassis.

The rack slider 14, the rack slider 30, the springs 15 and 31, the shift gears 18 and 34, and the shift gear springs 17 and 33 are arranged substantially symmetrically.

The rack slider 14 and the rack slider 30 are arranged outside the side chassis 10 and 26, respectively, and are provided with horizontal movement guides 14c and 14d provided above and below, respectively.
, 30c, and 30d are engaged with the rack slider guide boss 11 of the side chassis 10 and the rack slider guide boss 27 of the side chassis 26. Between the upper and lower horizontal movement guide grooves 14c, 14d, 30c, and 30d are lift grooves 14a, 14b, and 30a for vertically moving the tray lifter assembly 1, as described above.

30b are provided at the front and rear, and the lifter operation pin 3 of the lifter part 2 is engaged. These lift grooves 14a, 14
The rear lower portions of 30a and 30b, which are engaged with the lifter operating portion 3 in the slot down position, are formed so that they are slightly raised once the lifter operating pin 3 has been lowered to its lowest point.

This is because the rack slider 14 and O are returned due to the reaction of the drive belt 44, an unexpected external force, etc., and the lifter operating pin 3
This is to prevent the engagement of the lifter operating part 3 from moving to the inclined groove part and incomplete crimping of the cassette tape.Due to the shape mentioned above, the engagement of the lifter operating part 3 moves to the inclined groove, so the lifter movement is prevented. It is necessary to lower the pin 3 to the lowest point again, and this load prevents the engagement position of the lifter operating pin 3 from moving, so that the cassette tape 200 is kept completely crimped. Note that the above shape does not need to be provided in all four lift grooves 14a, 14b, 30a, 30b, and may be provided in at least one location.

Rack sliders 14 and 30 are normally biased rearward by springs 15 and 31, respectively.

Rack gear parts 14e and 30e are provided at the lower front sides of the rack sliders 14 and 30, respectively, and can be engaged with drive gears 1, 6, and 32, which will be described later, and can be operated in the horizontal direction. Rack gear portions 14f and 30f are provided at the rear upper sides of the rack sliders 14 and 30, respectively, and flat portions 14g and 30g are provided at the rear portions thereof. The rack gear parts 14f, 30f of the rack slider 14.30 mesh with the shift gears 18, 34 and can be operated in the horizontal direction or rotate the shift gears 18, 34, and the flat parts 14g, 30g of the rear part are Rack gear part 14f, 3
Before 0f engages shift gears 18 and 34, shift gear 1
The posture of the shift gears 18, 34 is corrected by contacting the flat portions 18a, 34a of the shift gears 8, 34. Thereafter, the shift gears 18, 34 mesh with the rack gear portions 14f, 34f of the rack slider 14.30. Rack gear parts 14f on the rear upper side of the rack sliders 14 and 30, respectively;
The upper portions of 30f and the flat portions 14g and 30g at the rear thereof are regulated in the upward direction by a rear reinforcing plate 37, and are guided in horizontal movement. Also, rack sliders 14 and 30
are rack gear parts 14f, 30f or shift gears 18, 34
When meshing with the rack gear parts 1'4e and 30e, the upper end sides of the rack gear parts 1'4e and 30e are regulated in the upward direction by outwardly bent constricted parts 10d and 26d on the upper front side of the side chassis 10.26, and are guided in horizontal movement. . This is to ensure that the meshing of the respective gear parts starts and continues with high precision.

At the rear of the rack sliders 14 and 30, as shown in FIG. 29, through holes 14h and 30h are provided through which transmitted light for tape end detection passes. These through holes 14h and 30h are A on the left and right sides as shown in Fig. 30.
The rack sliders 14 and 3 are formed with a spacing of -B.
0 moves horizontally from the rear to the front, the transmitted light from the light source 400 for detecting the end of the tape is transmitted at the rear,
It is designed to switch to shielding in the middle and transparent in the front. As for this timing, for example, the through hole 14h is switched from transparent to shielded immediately after the rack slider 14 starts moving from the rear position, and the through hole 30h is switched from transparent to shielded a little after the through hole 14h becomes shielded. Set it to change. This allows the output timing of the photosensors 23 and 47 to have a time difference as shown in FIG.
This is to detect the third stop position using the time difference between the outputs.

Horizontal recesses 14i and 30i are provided on the outer sides of the rack sliders 14 and 30 in the front and back direction, respectively, and the through holes 14h and 30h for guiding the transmitted light for detecting the tape end described above are formed in the recesses 14i and 30i. It is located inside. The concave portions 14i and 30i are provided with convex portions 22b formed on the sensor holder 22.45, as shown in FIG.

45b is inserted with clearance so that they overlap when viewed from the top of the set. Convex portion 2 of sensor holder 22°45
2b and 45b have through holes 22a through which transmitted light for tape end detection passes.

45a is provided, and photo sensors 23.degree. 47, which are light receiving elements for tape end detection, are held on the left and right outer sides thereof. As a result, the light reaches the photosensors 23 and 47 through the external light through holes 22a and 45a from the air vent hole of the upper cabinet (not shown), for example, and operates the control section a reliably.

Further, a sensor shutter 19 is rotatably supported on the rear inner side of the side chassis 10 by a sensor shutter shaft screw 21 (see FIG. 32).

The sensor shutter 19 is a lever that operates to block or transmit the light from the light source 400 to the photo sensor 23 through the transmission hole 10f, and is normally biased by the shutter spring 20 in the direction of transmission. . The sensor shutter is located at a position slightly before the tray assembly 59 is slotted in and ends its horizontal movement, and at a position where it is housed in the front cabinet] 9 is the upper left rear end of the tray frame 60 of the tray assembly 59 at the timing shown in FIG. The shape 16j of the rack slider 14 is rotated so as to block or block the transmitted light passing through the through hole 14h of the rack slider 14, thereby setting a monitoring section, and moving the third stop position to a desired position. Set to position. By this,
Highly reliable drive control is achieved. In addition, by setting the third stop position before switching from horizontal to vertical operation, it is possible to switch the driving force between vertical operation and vertical operation, which requires a relatively large driving force compared to horizontal operation. This makes it possible to reduce power consumption.

Here, the output of the photosensor 23.47 is output by the control unit 300.
(See Figure 11). The control unit 300 counts the time from the start of slot-in until reaching the third stop position, and when a predetermined time has passed, an abnormality detection logic determines that the operation is abnormal and reverses the drive motor 35. It has been incorporated. This predetermined time is set to be several times the normal time in consideration of environmental changes, changes over time, variations, etc. Therefore, for example, the hole 6 of the tray plate 61
If a hand or finger is inserted into the slot 1c, it will take a considerable amount of time for the drive motor 35 to release its reverse rotation after the hand or finger is inserted into the slot. The pinching force is small, and the time required for releasing the drive motor 35 from reversing becomes very short, thereby maintaining safety for the operator.

Abnormality detection using the above sensor shutter 19 (safety measure)
As a means for this, the shape of the left rear end of the tray frame 60 is changed, and the timing of the shielding and transmitting operations of the sensor shutter 19 is set as shown in FIG. 33 while the five tray assemblies are stored in the front cabinet. By providing a monitoring section that is repeated several times, it is possible to speed up detection. By dividing the period from the start of slot-in to the third stop position into small sections by blocking and transmitting the sensor shutter 19 several times, the control unit 300 determines the time required to move each section and detects an abnormality. Therefore, the detection time is greatly shortened, and even if a hand or finger is caught, the drive motor 35 can be reversed almost instantly.
Furthermore, the safety can be improved.

Note that the means for detecting abnormalities by dividing the area from the start of slot-in to the third stop position is not limited to the above example, and a rotating plate with slits (not shown) that operates in response to the five tray assembly operations may be used. Alternatively, it is also possible to perform divided detection using signals obtained by a combination of a slide plate and a photodetector, or a combination of a plurality of operating parts and switches provided in the five tray assemblies.

Side chassis 10. Shift gears 18 and 34 are pivotally supported inside each of the rear portions of the right 26 so as to be rotatable through a predetermined angle. The shift gears 18, 34 are each biased in one direction by a shift gear spring 17.33.

The shift gears 18 and 34 are connected to the tray rail 7 as described above.
6.80 rear upper rack gear part 76b.

80b and the rear upper rack gear parts 14f and 30f of the rack sliders 14 and 30, and the rearward movement of the tray rail 76, 80 causes the rack slider 1
4 and 30 in the front direction, and move the rack slider 14.
The rearward movement of 30 moves the tray rails 76 and 80 in the front direction, thereby switching the movement of the dray rule 76, 80 and the rack slider 14.30.

Drive gears 16 and 32 are rotatably supported on the outer sides of the lower front surface of the side chassis 10.26. The drive gears 16 and 32 are the rack gear portions 14e on the lower front side of the rack sliders 14 and 30, respectively.
, 30e to operate them.
a, 32a, and tray drive gears 52, 53, which will be described later.
It is comprised of outer gear parts 16b and 32b that are driven by meshing with the outer gear parts 16b and 32b. The ratio of the number of gear teeth between the inner gear parts 16a, 32a and the outer gear parts 16b, 32b is 1:2, and when performing phase matching of the gears, there is a point where the phases match every two teeth. The ease of assembly work is greatly improved. Note that the ratio of the number of gear teeth does not have to be 1:2, but 1:2. Small gear portions 52a, 53a of the tray drive gear 52, 53 are integers.
If the ratio of the number of gear teeth of the large gear portions 52b and 53b is the same, similar effects can be obtained. The outer gear parts 16b, 32b of the drive gears 16, 32 are rack sliders 14.30.
It also serves to prevent the rack from floating, and a relief taper is provided so as not to interfere with the rack slider 14.30 during rotation.

As described above, a pair of constricted portions 10a are provided at the inner rear of each of the side chassis 10.26.

26a is provided to accurately guide the left and right sides of the five tray assemblies. Further, at the rear inside of each of the side chassis 10.26, a pair of side chassis tray regulating portions 12° 28 are provided as described above.
Reliably regulating the position of the tray lifter assembly 1 in the front and back direction,
Rack gear part 76 at the rear upper part of the tray rail 76°80
b, 80b and the shift gears 18, 34 achieve highly accurate gear meshing. Also side chassis 10.26
As described above, a pair of side chassis tray regulating portion fronts 13.29 are provided on the inner front side of each of the side chassis tray regulating portions 77.29 in the slot-out state.
81 to accurately guide the tray assembly 59 from side to side, and to reduce vertical wobbling of the tray assembly 59 in the slotted-out state.

A switch 24 for tray down detection is provided at the rear lower side of the side chassis assembly 25. The switch 24 detects whether it is moving horizontally or vertically, and is driven by the lower end surface 30j of the rack slider 30, and when the rack slider 30 is at the rear, that is, from the slot-out position of the tray assembly 59, the horizontal movement ends. It is OFF until then, and it is ON from immediately after the right rack slider 30 moves toward the front until the end of the movement toward the front, and from the start of vertical movement of the tray assembly 59 to the slot down position. Switch 24 is used to determine slot out position and slot down position.
Due to the combination of the tray detection switch 90 and the tray detection switch 90, when only the tray detection switch 90 is ON, the slot out position
When both the tray detection switch 90 and the switch 24 are ON, the slot down position is determined by the control unit 300.

As a result, even if the detection circuit is reset due to a power outage or unplugging during operation, for example,
There is no need to create a special logic program to determine the positions of the five tray assemblies, and by simply providing a switch 24 that detects whether they are moving horizontally or vertically, the positions can be determined instantly. This makes it possible to implement quick control that is easily tailored to each case.

A sensor holder 22 is fixed to the left outer side of the side chassis 10. Rack slider 1 of sensor holder 22
Several protrusions 22b are provided on the 4 side to prevent the rack slider 14 from floating toward the left outer side. As a result, since the rack slider 14 engages with the simple-shaped rack slider guide boss 11, it does not require a washer or the like, thereby contributing to a reduction in the number of parts.

The sensor holder 22 also has a relay board 23a on the outside thereof.
is installed. The terminals of the photosensor 23 are soldered and attached to this relay board 23a. Note that the surface of the relay board 23a is painted black, and depending on the set, external light incident from the air vent hole on the left side of the cabinet is transmitted to prevent the photosensor 23 from malfunctioning. are doing. This results in
Intrusion of external light into the photosensor 23 is reliably prevented.

A drive motor 35 is fastened to the rear of the side chassis assembly 25, and a drive pulley 36, which is held and fixed to the shaft of the drive motor 35, transfers the driving force to the belt 44.
The signal is transmitted to the pulley gear 42 via. A belt cover (not shown) is provided on the right outer side of the belt 44 to prevent the belt 44 from coming into contact with wiring materials, etc. of the set.

Three tray drive assemblies are provided on the right outer side of the side chassis assembly 25 to transmit the driving force of the drive motor 35 at a reduced speed. It is composed of a reduction gear 41, a pulley gear 42, a relay gear 43, the belt 44, a sensor holder 45, a relay board 46, and a photosensor 47.

The tray drive base 40 rotatably supports a reduction gear 41, a pulley gear 42, and a relay gear 43 on its right outer side. The driving force transmitted to the pulley gear 42 by the belt 44 is subjected to first-stage deceleration by the pulley gear 42 and transmitted to the reduction gear 41. The reduction gear 41 performs second-stage deceleration and transmits it to the relay gear 43. Relay gear 43 transmits the signal to connector gear 50, which will be described later. In addition, tray drive base 4
0 is fixed to the side chassis 26.

A sensor holder 4 is installed on the right outer side of the tray drive base 40.
5 or fixed. The rack slider 30 side of the sensor holder 45 is provided with several protrusions (not shown in FIG. 3 for convenience of illustration), and these protrusions pass through the undercut holes of the tray drive base 40. This prevents the rack slider 30 from floating to the right outside. As a result, since the rack slider 30 engages with the simple-shaped rack slider guide boss 27, no washer or the like is required, contributing to a reduction in the number of parts.

A relay board 46 is attached to the outside of the sensor holder 45. The terminals of the photosensor 47 are attached to the relay board 46 by soldering. The surface of the relay board 46 is painted black, and depending on the set, this may be done to prevent outside light entering from the air vent hole on the right side of the cabinet from passing through the board and causing the photosensor 47 to malfunction. is prevented. Most of the various detection signals are collected on the relay board 46 and connected to the electrical circuit. As a result, the photosensor 47 is reliably prevented from entering external light, similar to the photosensor 23.

The rear portion of the reinforcing plate is composed of a rear reinforcing plate 37 and a cassette lid opener 38. As shown in FIG. 35, the rear reinforcing plate 37 is a positioning portion 1 provided above the side chassis 10.26 with four or more positioning holes 37b provided on the left and right front and rear sides.
0g and 26g, and is screwed and fixed to the side chassis 10.26. The positioning part provided above the side chassis 10.26 has a straight shape without bending, etc., and the 4 or more positioning holes provided on the left and right front and rear of the rear reinforcement plate 37 are simultaneously machined in one process. The side chassis 10.26 can thus maintain very precise width dimensions and mutual parallelism.

Therefore, there is no need to use a special assembly jig during assembly. The rear reinforcing plate 37 not only reinforces the operating mechanism housing but also serves as a limiter when the upper cabinet is deformed due to external force being applied to the upper part of the set. Also, after the reinforcing plate 3
7 is provided with a six 37a so that the tape running parts of the mechanical deck can be seen from diagonally above the set, taking into consideration the workability of set adjustment. The cassette lid opener 38 is located after the reinforcing plate 3.
7, and functions to open the lid 201 of the cassette tape 200 and the cassette stopper 82 during the slot-in operation (see FIG. 24).

Reinforcement plate front assembly 84, reinforcement plate front 85, door lock lever 8
6, 87, two door lock lever springs 88, a tray detection lever 89, and a tray detection switch 90. In front of the reinforcement plate 85 are positioning holes 85 provided on the left and right sides.
a is the positioning part 1 provided on the side chassis 1026
0e.

26e, and is fixed to the side chassis 10.26 with screws so as to maintain a highly accurate width dimension. The front reinforcing plate 85 not only reinforces the operating mechanism housing but also serves as a limiter when the upper cabinet is deformed due to external force being applied to the upper part of the set.

Further, when the cassette tape is taken out, if the front side of the cassette tape is lifted by an unexpected force, the front part of the front reinforcing plate 85 comes into contact and becomes a limiter (see FIG. 36), and the cassette tape 200 is moved to the cabinet 210. This prevents the cassette tape loading/unloading opening from being lifted and deformed.

For this reason, the front portion of the front reinforcing plate 85 is bent upward at a predetermined angle.

A tray detection bar 89 is rotatably supported on the lower right side of the front reinforcing plate 85 and operates a tray detection switch 90 fixed to the front reinforcing plate 85 with screws. It is operated by the rear part 89a of the tray detection lever 89 or the convex part 30k of the rack slider 30, or by the front part 89b of the tray detection lever 89 or the protrusion 80c of the tray rail 80, and is operated at both the slot out position and the slot down position. to turn on the tray detection switch 90.

At positions other than the above, the tray detection lever 89 is biased (in the OFF direction) by the restoring force of the tray detection switch 90 itself.

Door lock levers 86 and 87 are rotatably supported on the left and right inner sides of the front reinforcing plate 85, respectively.

Door lock levers 86 and 87 are operating posts 86a.

87a10 Tsuku claw parts 86b, 87b and operation post 86c
, 87c. And door lock lever 86,8
7 are grooves 60d and 60c in the upper part of the tray frame 60.
as shown in FIG. 37, and this groove 6
A cassette door 21 that opens and closes the cassette tape loading/unloading opening of the cabinet 210 under the control of 0d and 60c.
1 locking member 212 (38th locking member 212)
figure.

(See Figure 39). The cassette door 211 is the cabinet 2
The biasing spring 213 is rotatably supported by the energizing spring 213.
is energized in the closing direction by That is, the door lock levers 86 and 87 are each biased and held by a door lock lever spring 88 in a direction to lock the lock member 212 of the cassette door 211. and,
When the slot-out operation starts from the slot-in state of the five tray assemblies, the cassette door 211 is pushed by the tray assembly 59 and opens against the spring force of the biasing spring 8 (see FIG. 38(b)). . At this time, the door lock levers right and left 86.87 have their operating posts 86c, 8
7c is still the groove 60d on the left and right top of the tray frame 60,
Since it is engaged with 60c, the door lock levers 86, 87
The lock claws 8.6b, 87b are released from the lock member 212 of the cassette door 211 and released. The locking member 212 of the cassette door 211 is provided with a tapered shape at the tip of the locking member 212 to push away the locking claws 86bb and 87b of the door lock levers 86 and 87. 211 lock member 212 and door lock lever right and left 86.87 lock claw parts 86bb, 87
This arrangement is designed to ensure that the cassette door 211 can be closed all the way even if the door 211 b interferes with the door. Furthermore, when the five tray assemblies are slotted in from this slot-out state, the operating posts 86c and 87c of the door lock levers 86 and 87 come off from the grooves on the left and right upper portions of the tray frame 60, and the door lock lever springs 88 cause the right and left door lock levers to move. 86.87 lock claw part 86bb
, 87b are engaged with the locking member 212 of the cassette door 211, and the cassette door 211 is locked in the closed position. If the cassette door 211 is allowed to open when the cassette tape 200 is already in the set, an accident may occur where the player accidentally performs the slot-out operation with his or her hand inside the set, causing the hand to be caught and the hole to be opened. However, when the five tray assemblies are housed in the cabinet 210, the cassette door 211 is closed and locked, so the operator does not have to open the holes as described above.

When the tray assembly 59 is slotted out in the front direction, first the operation boss 86a of the door lock levers 86, 87 is
, 87a is operated by engaging with the grooves on the left and right upper portions of the tray frame 60, and the door lock levers 86, 87
lock claw portion 86b.

After 87b is released from the locking member of the cassette door, it is pushed by the tray assembly 59 and the cassette door 211 is opened.

A second open/close switch 100 is provided between the cassette door 211 and the cabinet 210 via an elastic member (not shown) (see FIG. 39). It is determined by the preload of In this state, the second open/close switch 100 is turned OFF with a predetermined clearance.
When the cassette door 211 is further closed against the elastic force of an elastic member (not shown), the second open/close switch 100 is turned on. Note that the elastic member (not shown) that is the limiter of the cassette door 211 can also be used as the second open/close switch 100 itself. Furthermore, when the cassette door 211 is closed, the slot can be slotted out by pressing a separately provided open/close switch 101, or by pressing the main body of the cassette door 211. It has become.

The output ends of the second open/close switch 100 and the open/close switch 101 are connected to the control unit 300, and the cassette door 211 is opened and closed via the control unit 300 in response to the ON-OFF state. do.

The reinforcing plate lower assembly 54 includes a front lower reinforcing plate 55, two left and right pop-up control lever holding plates 56, two left and right pop-up control levers 57, and two left and right pop-up control lever springs 58.

The lower front reinforcing plate 55 is attached to be sandwiched between the left side chassis 10, the right side chassis 26, and the front reinforcing plate 85. The lower front reinforcing plate 55 reinforces the operating mechanism housing, and also serves as the side chassis left 10 and the side chassis right 26.
It maintains a highly accurate width dimension between the parts and also serves to hide the interior of the mechanical deck from the operator. Reinforcement plate front bottom 5
A pop-up control lever holding plate 56, which rotatably supports a pair of pop-up control levers 57, is fixed to the left and right sides of the pop-up control lever 5 with screws. As previously explained, the pop-up control lever 57 engages the bent portions 62c and 66c provided at the rear ends of the left and right pop-up sliders 62.degree. 66 of the tray assembly 59, thereby providing a selective pop-up mechanism. Operate. The pop-up control lever 57 is biased by a pop-up control lever spring 58 in the direction of engaging the bent portions 62c, 66c at the rear ends of the left and right pop sliders 62,66,
In the slot-out operation, the bent portions 62C and 66C at the rear tips of the left pop-up slider 62 and right pop-up slider 66 are engaged and operated, and in the slot-in operation, the rear tips of the left pop-up slider 62 and the right pop-up slider 66 are bent. It can be pushed by the parts 62c and 66c and rotated in the direction of escape.

The drive transmission unit that synchronously transmits the driving force to the left and right side chassis parts includes a connect spring 49 and a connect gear 50.
, a tray drive shaft 51, and tray drive gears left and right 52 and 53. The tray drive shaft 51 is provided to pass through the left and right side chassis 10.26, and at the left and right ends of the tray drive shaft 51, left and right tray drive gears 52.53 synchronize and maintain the phases of the left and right gears. . Tray drive gear left and right 52.
53, small gear parts 52a and 53a which mesh with and operate rack gear parts 60a and 60b provided inside the left and right side chassis 10.26 at the lower left and right sides of the tray frame 60, respectively, as shown in FIG. , this small gear portion 52a.

The bearings with the left and right side chassis 10.26, which have a slightly larger diameter than the outer diameter of 53a, are part 52d.

53d, and rack gear parts 14e and 30e provided on the lower front sides of the left and right rack sliders 14.30, respectively.
It is comprised of large gear parts 52b and 53b that mesh with and operate these parts (see FIG. 41).

By doing this the tray drive gear left and right 5
2.53 can be resin molded using a simple upper and lower mold. And these tray drive gears and right 52
．． 53 is pivotally supported by a hexagonal extruded tray drive shaft 51 as shown in FIG. 42, and its small gear portion 52a53a is set to have a number of teeth that is a multiple of six. This allows the left and right tray drive gears 52 and 53 to be easily assembled without worrying about the left and right gear phases. Also, the ratio of the number of gear teeth of the small gear parts 52a, 53a and the large gear parts 52b, 53b is the number of gear teeth of the inner gear parts 16a, 32a and the outer gear parts 16b, 32b of the left and right drive gears 16. The same ratio as 1:2 (
For example, it is composed of 12 teeth: 24 teeth), and a mark X that matches the phase is provided for every two teeth (see Fig. 41), and these marks are assembled so that they match. Note that the ratio of the number of gear teeth does not have to be 1:2, but is 1:an integer, and the ratio of the gear teeth inside the left and right drive gears 16.32 is 16a, 32a.
A similar effect can be obtained if the ratio of the number of gear teeth of the outer gear portion 16b and the outer gear portion 32b is the same.

In addition, the small gear parts 52a and 53a of the tray drive gear left and right 52 degrees 53 are the drive gear left and right 16.3.
2, the inner gear part 16a.

32B, and is formed to have the same number of teeth as the left and right shaft gears 18.34, and the inner gear portions that mesh with the rack gear portions 76b and 80b at the upper rear of the left and right tray rails 76.80, respectively, and the rack slider left 14. and rear upper rack gear parts 14f and 30 of the right rack slider 30, respectively.
The outer gear portions that mesh with f use the same gears, or the small gear portions 52a, 53a of the left and right tray drive gears 52, 53 and the inner gear portions 16a of the left and right drive gears 16°32, 32g does not necessarily have to have the same number of teeth or the same module. In this case, the small gear parts 52a and 53a of the left and right tray drive gears 52.53
and drive gear left and right 16.32 inner gear part 1
The ratio of the pitch diameters of the shaft gears 6a and 32a and the ratio of the pitch diameters of the inner gear portion and the outer gear portion of the left and right shaft gears 18° 34 may be made the same.

For example, if the pitch circle diameter of the small gear parts 52g, 53a of the tray drive gear left and right 52.53 is made larger than the pitch circle diameter of the inner gear parts 16a, 32a of the drive gear left and right 16.32, the tray The reduction ratio of the horizontal movement of the five tray assemblies driven by the left and right drive gears 52 and 53 is increased, and the force when a finger or hand is caught is weakened. As mentioned above, since the operating load for horizontal movement is smaller than that for vertical movement, the drive motor 35 can be Safe and reliable driving can be achieved with one type of driving voltage. In this way, by controlling the drive motor 35 with one type of drive voltage and weakening only the force when a finger or hand is caught, only horizontal movement can be performed with a low drive voltage. Compared to the case where the force when a finger or hand is caught is weakened by implementing this method, it is possible to control the motion more quickly.

Further, on the right outer side of the tray drive gear 53, a connect gear 50 is coaxially supported with the right tray drive gear 53 via four connect springs. The drive force from the relay gear 43 is transmitted to the connect gear 50, and is transmitted to the right and left tray drive gears 53, 52 and the tray drive shaft 51. In this way, first, install the tray drive gears right and left 53, 52, and the tray drive shaft 5.
By transmitting the driving force to 1 and then to the left and right side chassis parts, the influence of backlash of gears in the intermediate route is eliminated, allowing smooth slot-in and slot-out operation.

The four connect springs are bosses 53c and 5 protruding from the tray drive gear 53 and the connect gear 50, respectively.
0a are brought into contact with each other and the two are held in place. When in the slot-out state (see FIG. 43(b)), the tray drive gear 53 is connected via the connect gears 50 to 49, and when in the slot-in state (see FIG. 43(a)), the tray drive gear 5 is connected.
The driving force is directly transmitted from the tray drive gear 53 to the tray drive gear 53. When the tray assembly 59 is pushed backward in an attempt to start slot-in from the slot-out state (Fig. 43(
c)), the tray drive gear left 52,
The tray drive gear right 53 rotates. At this time, since the connect gear 50 is directly connected to the drive motor 35, it cannot rotate under a large operating load, but the rotation of the left and right tray drive gears 52 and 53 is absorbed by the bending of the connect spring 49. When the operating portion of the tray assembly 59 comes off the tray detection lever 89, the tray detection switch 90 is switched from ON to OFF, and the drive motor 35 is rotated by the circuit to start slot insertion.

The left and right tray drive gears 52 and 53 have enough room to rotate relative to the connect gear 50 by the amount of deflection of the connect spring 49 even after the tray detection switch 90 is switched from ON to OFF. As a result, when the tray assembly 59 is pressed with a small operating force against the spring force, the connect spring 49 allows the tray assembly 59 to move by the amount of deflection and activates the tray detection switch 90. Turn it on to realize the slot-in operation as described above.

As an alternative to the connector spring 49, the tray assembly 5
It is also possible to configure it with a click mechanism or the like that holds the slot out position. In this case, the drive motor 35 continues to rotate until the slot-out position is held by a click mechanism or the like at slot-out, and then, after the tray detection switch 90 is switched from ON to OFF, the drive motor 35 is rotated to a certain extent with a margin. Reverse rotation to rotate the connect galley 0 relative to the left and right tray drive gears 52 and 53. Tray drive gear left and right 52.
53 is separated from the drive motor 35 until the bosses 53c and 50a protruding from the tray drive gear 53 and the connect gear 50 come into contact with each other, so the insertion force for inserting the slot into the slot is equal to the force required to release the click mechanism, etc. Similarly, slot-in can be started with a small pressing force.

Furthermore, even when four connect springs are used, the rotation is continued even after the slot is out, and the connect springs 49 are deflected and escape, as in the case where the above-mentioned click mechanism is used. Slot out is ensured by transmitting the driving force directly through the bosses coming out from each, and then, even after the tray detection switch 90 is switched from ON to OFF, the drive motor 35 is reversed to a certain extent with a margin. By stopping the connect gear 50, the force of the four connect springs can be further reduced by rotating the connect gear 50 by a predetermined angle relative to the left and right tray drive gears 52, 53, resulting in an even smaller pressing operation. It can be controlled by force.

A damper 92 is provided on the lower front side of the outside of the side chassis right assembly 25 so as to mesh with the drive gear right 32. The damper 92 has the effect of smoothing the slot-out operation. For example, if it has a one-way clutch function, and the damper is removed when the slot is in and the damper function is activated when the slot is out, the insertion force for slotting in will be equal to the damper. It is possible to maintain good operability. As shown in FIG. 44, the damper 92 is composed of a gear portion 92a that meshes with the right drive gear 32 and a damper body 92b.
As shown in FIG.
This rotation boss 92 is provided coaxially with the rotation center axis of 2a.
c passes through an elongated hole 26f, which is a guide portion, provided on the right side chassis 26 and projects into the inside of the right side chassis 26. A rotary plate 110 having a relief part 110a and a locking part 110b is fixed to the rotary boss 92c inside the right side chassis 26, and holds the damper 92 rotatably and slidably along the elongated hole 26f. are doing.

A locking portion 110 of the rotating plate 110 is located on the right side 26 of the side chassis.
A locking shape 26g that engages with b is provided, and when the drive gear right 32 rotates in the slot out direction,
Due to the slight rotational load between the rotary boss 92C and the elongated hole 26f and the rotational direction of the drive gear right 32, the damper 92 is biased toward the front side and the locking shape 2 of the side chassis right 26 is forced.
6g engages with the locking portion 110a of the rotary plate 110 to stop the rotation of the damper body 92b, thereby functioning as a damper (see FIG. 46(b)). When the right drive gear 32 rotates in the slot-in direction, the damper 92 is moved backward due to the direction of rotation of the right drive gear 32, a slight rotational load between the rotation boss 92c and the elongated hole 26f, and the shape of the relief part of the rotation plate 110. The locking portion 110b of the rotary plate 110 escapes from the locking shape 26g of the right side chassis 26 due to the bias toward the side, and the damper main body 92b rotates together with the gear M92a, so the damper function does not work (see Fig. 46). a)). The rotation direction of the drive gear right 32, the elongation 26f of the side chassis right 26, the rotation boss 92c and the elongated hole 26f.
A slight rotational load, the locking shape 26g of the right side chassis 26, and the rotary plate 110 cooperate to form a one-way effective damper.

Next, the loading and unloading operations of the cassette tape will be explained.

First, in the stopped state where no cassette tape is stored, the tray assembly 59 is stopped at the third stop position.

To slot out the tray assembly 9 from this state, the open/close switch 101 or the cassette door 211 is pressed. Then, the second open/close switch 100 operated by the open/close switch 10a or the cassette door 211 is turned on. The open/close switch 101 and the second open/close switch 100 are connected to the control section 300 as shown in FIG. 11, and output an ON signal to the control section 300. The control unit 300 outputs a drive signal to the drive circuit 30 in response to the ON signal. The drive circuit 301 rotates the drive motor 35 with the first voltage from the power supply circuit 302, and the tray assembly 5
Slot 9 out. At this time, tape cassette 2
00 is not inserted, the tray assembly 59 is moved to 2 due to the action of the aforementioned selective pop-up mechanism.
The pop-up lever 70 is controlled to the lowered position, and the cassette tape 200 can be accommodated.

That is, while the tray assembly 59 is moving toward the front, the tray detection lever 89 is operated by the operating section of the tray assembly 59 at a position slightly behind the slot out end, and the tray detection switch 90 is turned from OFF to ON. Switch.

This tray detection switch 90 has an output end connected to the control section 3.
00, the control unit 300 detects this, continues rotating the drive motor 35 for a predetermined time with the first voltage, and then reverses the drive motor 35 for a predetermined time using the second voltage. Next, the drive motor terminals are short-circuited to apply the brakes to stop the drive motor, and then the drive motor terminals are opened to standby. The first voltage is a voltage for normal operation, and the second voltage is set lower than the first voltage in a power supply circuit set for safety measures, which will be described later.

The reason why the rotation is continued for a predetermined time at the slot out end is to ensure that the drive motor 35 is energized to the end position, and after that, the drive motor 35 is reversed for a predetermined time by the connect gear 50 and the tray drive gears 52 and 53 on the left and right sides.
This is to prepare the insertion operation of the tray assembly 59 for the next slot-in operation by applying a predetermined amount of relative rotation to the tray assembly 59 . By inverting the drive motor 35 for a predetermined period of time using the second voltage and then applying a short brake between the drive motor terminals, this predetermined amount of relative rotation can be achieved by turning on the tray detection switch 90 when the tray assembly 59 is pushed in. From O
Even after switching to FF, the tray drive gear 53 can be accurately stopped at a position with a predetermined margin for relative rotation with respect to the connect gear 50. The subsequent opening between the terminals of the drive motor is a countermeasure in case the drive motor 35 is not driven for some reason. If it does not slot in automatically, manually assemble the tray 5.
However, even if the drive motor 35 becomes operational halfway through, the drive motor terminals are open until then, so compared to a short circuit between the terminals, the drive motor 35 may be pushed into the cabinet 210. When the motor terminals are open, it can be pushed in with a relatively light pressing force. Furthermore, even when the set is not powered on, the five tray assemblies can be manually pushed into the cabinet 210 with a relatively light pressing force since the drive motor terminals are open.

Next, when slotting in from the slot-out state, it is carried out by switching the open/close switch 101 or suppressing the tray assembly 59. That is, when the open/close switch 101 is pressed, the control unit 300 turns on the switch 101.
is detected, and the drive motor 35 is rotated at the second voltage via the drive circuit 301 and the power supply circuit 302 to insert the drive motor 35 into the slot. In addition, when the tray assembly 59 is pushed, the tray drive gear left 52 and the tray drive gear right 53, which are operated by the rack gear parts 60a and 60b on the lower left and right sides of the tray assembly 59, are connected to the connect gear by the deflection of the connect spring 49. Since it rotates relative to the drive motor 50, it is separated from the drive motor 35 and can be pushed in with a light pressing force. When the tray assembly 59 is pushed in and the actuating part of the tray assembly 59 is disengaged from the tray detection lever 89, the tray detection switch 90 is switched from ON to OFF, and this is detected by the control part and the drive motor 35 is switched between the drive circuit 301 and the tray detection switch 90. It is rotated at the second voltage via the power supply circuit 302 and inserted into the slot.

At the slot out end, the transmitted light for detecting the tape end is transmitted on both the left and right sides, or near the end of horizontal movement, the left rack slider 14 or one sensor shutter and the right rack slider 30 operate to shield or shield the transmitted light from the left side. A third stop position is set, where the right side is transparent. This third stop position is an intermediate position between the slot-out position and the slot-in position, and is after the position where the tray assembly 59 is stored in the cabinet 201.
It is set slightly after and before the two vertical movements start.

If the cassette tape 200 is inserted into the slot, the left side of the transmitted light for tape end detection at the third stop position is switched to shielding, and the cassette detection switch 8 is not turned OFF. , the control unit 300 detects this and stops the drive motor 35 at the third stop position.

Then, when the cassette tape 200 is loaded and inserted into the slot, the cassette detection switch 8 is switched from ON to OFF before reaching the third stop position.

Then, the control unit 300 determines the position where the left side of the transmitted light for tape end detection is switched to shielding as the third stop position, and changes the voltage of the drive motor 35 from the second voltage to the first voltage. A switching signal for switching to the voltage is output to the drive circuit 301. The drive circuit 301 switches the voltage from the power supply circuit 302 to the first voltage to drive and control the drive motor 35, and further performs slot-in operation. The tray assembly 59 is horizontally moved rearward by left and right tray drive gears 52 and 53 that mesh with the lower left and right rack gear parts 60a and 60b, but at the end of the horizontal movement, the left and right tray rails 76 and 80 The rear upper rack gear portion 76b, 8
0b meshes with the left and right shaft gears 18.34 to operate them, and the left and right shaft gears 18.34 mesh with the rack gear parts 14f and 30f at the rear upper part of the left and right rack sliders 14.30 to move them toward the front. move in the direction. The rack gear parts 60a and 60b on the left and right lower sides of the tray frame 60 of the tray assembly 59 are disengaged from the left and right tray drive gears 52.53, and the rack sliders left and right 14.30 mesh with the left and right drive gears 16.32. , it will be moved further forward. This tray rail left and right 76°80 to drive gear left and right 16.32
The operation switching to is carried out as described above, and the tray assembly 59 or the tray lifter assembly 1 is accommodated and held here.

When the left and right rack sliders 14.30 are moved to the front, the lifter operating portion 3 engaged therewith is guided by the lift grooves provided on the left and right rack sliders 14.30. The lifter assembly 1 is lowered, and the tray assembly 59 held by the tray lifter assembly 1 is lowered to load the cassette tape 200 into the tape drive section. When the left rack slider 14 starts moving forward, the switch 24 is turned from OFF to ON. The right rack slider 30 operates the tray detection lever 89 at the end position of the movement in the front direction, and then operates the tray detection switch 9.
0 from OFF to ON. The control unit 300 changes the tray detection switch 90 from OFF to O when the switch 24 is ON.
Detecting that the switch has been switched to N, the drive motor 35 is stopped,
Ends slot-in operation.

Note that the control unit 300 monitors the time required from the start of slot-in to the third stop position, and if the abnormality detection time set by multiplying the normal operating time by a margin coefficient has elapsed, abnormality detection is activated. Then, the drive motor 35 is reversed and the tray assembly 59 is ejected. Therefore, cassette tape 200
If the operator accidentally inserts his/her hand or finger into the slot and gets caught between the cabinet 210 and the tray frame 60, an abnormality detection is activated and the drive motor 35 is reversed and released. , slotted out. At this time, the horizontal movement of the slot-in is driven by a second voltage, so even if a hand or finger is pinched, the force is reduced, thereby maintaining the operator's safety. .

The above monitoring time is from the start of slot-in to the third
Instead of the time required to reach the stop position, the monitoring interval may be set from the start of slot-in until the cassette detection switch 8 is switched from ON to OFF. That is, the position at which the cassette detection switch 8 changes over the monitoring time is set slightly before the third stop position, and at a position where the five tray assembly holes are hidden within the cabinet 210.
The moving section to be monitored is shortened, and the abnormality detection time set by multiplying the normal operating time by a margin coefficient is shortened, and the time required to release the pinched hand or finger, for example, is shortened. According to this, in the state without the cassette tape 200, the operating load is smaller and the operation is faster than in the state with the cassette tape, but up to the switching position of the cassette detection switch 8 when the cassette tape is present. This is because the third stop position can be reached in the time of .

Further, when a cassette tape is present, switching from the second voltage of the drive motor 35 to the first voltage during slot insertion may be performed at the switching position of the cassette detection switch 8. In this case as well, when slot-in is performed without a cassette tape, the tape can be stopped preferentially when the third stop position is reached.

When the cassette tape is to be taken out from the slotted tray assembly 59, the open/close switch 101 is again operated or the tray assembly 59 is pressed. Then, the control section 300 switches the open/close switch 101 or the second open/close switch.
A switching signal indicating that the close switch 100 is turned on is detected and the drive motor 35 is rotated in the slot-out direction with the first voltage. The operation is switched from drive gear left 16 and drive gear right 32 to tray rail left 76 and tray rail right 80 in the reverse order of the slot-in case, and the five tray assemblies operate almost in the opposite direction to the slot-in operation. You will be slotted out smoothly. When the cassette tape is slotted out, the two pop-up levers 70 are raised at one end by the selective pop-up mechanism as described above, and lift the front side of the cassette tape in the tray assembly 59. , the operator can remove the cassette tape from within the tray assembly 59. cassette tape 20
0 is taken out, one end of the two pop-up levers 70 is lowered again by the action of the selective pop-up mechanism, and is returned to its original position and accommodated, waiting in preparation for loading the next cassette tape.

In this manner, the cassette loading device transports the tray assembly 59 approximately horizontally from the cassette tape attachment/detachment position protruding from the front surface of the cabinet 210 to above the tape drive section, and then transfers the cassette table 200 approximately vertically onto the tape drive section. The cassette is moved up and down to the cassette loading position. According to this, it is possible to load a cassette into the tape drive section in the cabinet and to remove the cassette from the tape drive section using the five tray assemblies arranged so as to be able to move in and out of the front surface of the cabinet 200. Highly accurate cassette transfer control is achieved.

According to this, the five horizontally transferred tray assemblies are moved up and down, and at least three planar points of the cassette tape are pressed into contact with the lid part 2 in the tray assembly 59 to regulate the position of the plurality of plates. By providing the spring 5, it becomes possible to position the cassette tape 200 of the tray assembly 59 and the lifter part 2 with high precision, and furthermore, it is possible to promote high precision of cassette transfer control. In the lifter part 2, by disposing a cassette detection switch 8 at a position corresponding to both ends of the cassette tape 200 among the leaf springs 5, the action of the leaf spring 5 ensures that the cassette tape 200 is Since detection is possible, accurate cassette transfer control is realized.

In the above embodiments, the case where the application is applied to a tray-type cassette loading device using a cassette tape wrapped with magnetic tape has been described as a representative example, but the present invention is not limited to this, and for example, a compact disc ( The present invention can also be applied to a cassette loading device in a CD system or the like that uses a cassette containing CDs.

Therefore, it goes without saying that the present invention is not limited to the embodiments described above, and that various modifications can be made without departing from the spirit of the invention.

[Effects of the Invention] As detailed above, according to the present invention, it is possible to provide a tray-type cassette loading device that has a simple configuration and can realize highly accurate tray transfer control. .

[Brief explanation of the drawing]

1 to 3 show a cassette loading device according to an embodiment of the present invention, in which FIG. 1 shows the slot-out state, FIG. 2 shows the slot-in process, and FIG. 3 shows the slot-in completed state. FIG. 4 is a perspective view showing a cassette tape to which the present invention is applied, and FIGS. 5 to 46 are views shown to explain details of each part of FIGS. 1 to 3. . 1...Tray lifter assembly, 2...Lifter 3.
...Lifter operation pin, 4...Guide roller, 5...
- Leaf spring, 6... Guide roller, 7... Roller shaft,
8...Cassette detection switch, 9,25...Side chassis assembly, 10.26...Side chassis, 11
．． 27...Rack slider guide post, 12.13
... Side chassis tray regulating section rear and front, 14.
30...Rack slider, 16.32...Drive gear, 18.34...Shift gear, 19...Sensor shutter, 21...Sensor shutter shaft screw, 23.47
- Photo sensor, 23a, 46... Relay board, 24
...Switch, 28.29...Side chassis tray regulating section rear and front, 35...Drive motor, 36...
・Drive pulley, 37... After reinforcing plate, 38... Cassette lid opener, 39... Tray drive assembly, 40-
=) Raydrive base, 41... Reduction gear, 45
...Sensor holder, 50...Connect gear, 51...
・Tray drive shaft, 52. 53... Tray drive gear, 54... Reinforcement plate front assembly, 55... Reinforcement plate front lower part, 56... Pop-up control lever holding plate, 5
7... Pop-up control lever 59... Tray assembly, 60... Tray frame, 61... Tray plate, 62. 66... Pop-up slider, 63.
67...Cassette detection boss, 70...Pop-up lever 72...Cassette lid lock release lever 74
78...Click lever 76.80...Tray rail, 77.81...Tray rail position regulation part, 82
...Cassette stopper, 84...Reinforcement plate front assembly, 8
5... In front of the reinforcement plate, 86° 87... Door lock lever
89...Tray detection lever 90/Tray detection switch,
91...Display member, 92...-damper 100...
- Second open/close switch, 101... Open/close switch, 110... Rotating plate, 20
0...cassette tape, 210...cabinet,
250... C cassette adapter 300... Control unit, 301... Drive circuit, 302... Power supply circuit, 4
00...Light source. 4th (21st

Claims (3)

[Claims] (1) A tray into which a cassette containing a recording medium can be attached/detached is provided so as to be freely removable from the front of the cabinet, and the cassette tape is transferred to and loaded into the recording medium drive section in the cabinet via this tray. In the loading device, the tray is transported substantially horizontally from a cassette loading/unloading position protruding from the front surface of the cabinet to above the recording medium drive section, and then the cassette tape is loaded substantially vertically onto the recording medium drive section. A cassette loading device characterized by comprising a tray transfer means for moving the tray up and down to a certain position. (2) The tray transfer means holds the tray transferred substantially horizontally and moves it up and down, and is an elastic holding member that presses a plurality of planar points of the cassette tape against the tray to regulate the position. The cassette loading device according to claim 1, further comprising a tray lifting mechanism having a tray lifting mechanism. (3) The cassette loading device according to claim 2, wherein the elastic holding member of the tray lifting/lowering mechanism is provided with a cassette detection switch at a position corresponding to at least both ends of the cassette tape.