JPH06111436A - Cassette loading device - Google Patents

Abstract

PURPOSE:To reduce the defective operability of inserting and ejecting a cassette due to the installing condition of an equipment such as the height of installing. CONSTITUTION:A cassette holding part E is provided on the front end of a horizontal moving part D. The position of the cassette is switched between a first waiting position WP1 where the front end part (d) of the horizontal moving part D is almost coincident with the front surface (a) of the equipment main body and a second waiting position WP2 where the cassette holding part E is largely protruded from the front surface (a) of the equipment main body or between the second waiting position WP2 and a third waiting position WP3 where the cassette holding part E is raised and rotated in an inclining posture with this side of the part E above the second waiting position WP2 by the selecting operation of waiting position selecting switches SS1-SS3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette loading device equipped in a video tape recorder or the like, and more particularly, a horizontal moving part having a cassette holding part at its front end portion is located closer to the front side than the front surface of the device body. The present invention relates to a tray-type cassette loading device configured to project and move and stop, and the stopped state is used as a standby position for cassette insertion / ejection to insert / remove a cassette into / from a cassette holder.

[0002]

2. Description of the Related Art In a conventional tray type cassette loading device of this type, the standby position for inserting and removing the cassette is fixed at a fixed position. That is, when the horizontal moving unit has moved to the maximum protrusion limit and stopped, the cassette holding unit on the front end side of the horizontal moving unit is the standby position for inserting / removing the cassette. In other words, there was only one way to insert and remove the cassette.

[0003]

In the conventional tray type cassette loading device, the cassette holding portion on the front end side of the horizontal moving portion at the maximum protrusion limit is fixed as the standby position for inserting and removing the cassette. Depending on the installation height of the device and other installation conditions, it may be difficult to insert and remove the cassette with respect to the cassette holding unit whose position is fixed. For example, when the standby position for inserting / removing the cassette is higher than the eye level, it is difficult to see the set position of the cassette in the tray method, and it is necessary to insert / remove the cassette depending on the intuition. Will be things. Further, when the device is stored in a rack with a glass door, there is a risk that the door of the glass rack may be suddenly opened due to the protruding movement of the horizontal moving section depending on the stored state.

The present invention has been devised in view of the above circumstances, and provides a cassette loading device capable of reducing the poor operability of inserting / removing a cassette due to the installation conditions such as the installation height of the device. The purpose is to do.

[0005]

In a first cassette loading device according to the present invention, a horizontal moving portion having a cassette holding portion on the front end side is moved so as to project toward the front side of the front surface of the apparatus body and stopped. In the cassette loading device configured as described above, in addition to the standby position of the front side protruding state as a standby position of cassette insertion / removal, a standby position in a state in which the front end portion of the horizontal moving portion substantially matches the front surface of the device body Is set so that both standby positions can be selected.

Further, the second cassette loading device according to the present invention is constructed so that the horizontal moving part having the cassette holding part at the front end side thereof projects and stops toward the front side of the front surface of the apparatus body. In the cassette loading device, in addition to the standby position in the front side protruding state as the standby position for inserting and removing the cassette, the standby state in which the cassette holding unit is in a front upper inclined position with respect to the horizontal moving unit in the protruding position It is characterized in that a position is set and both of these standby positions can be selected.

[0007]

In the case of the first cassette loading device, there are two standby positions for inserting and removing the cassette: a standby position in which the horizontal moving portion projects more than the front surface of the device body and a standby position in which the front end portion substantially coincides with the front surface of the device body. Since I made it possible to select them by setting, in the case of the second cassette loading device,
As the standby position for inserting / removing the cassette, the horizontal position can be selected by setting the standby position in which the horizontal movement part protrudes more than the front of the main body of the device and the standby position in which the front upper inclined posture is set. A more appropriate standby position can be selected according to the installation conditions such as height.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cassette loading device according to the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 2, this cassette loading apparatus is mainly divided into the essential parts of the invention and taken out. The main body A, the frame portion B, the drive portion C, the horizontal movement portion D, and A cassette holding section E, a tilting section F, a control section G,
It is composed of a first position sensor PS1, a second position sensor PS2 and a third position sensor PS3. In addition, H
Is a head drum, and I is a mechanical chassis.

The frame portion B is fixed to the mechanical chassis I. The head drum H is rotatably supported by the mechanical chassis I. The horizontal moving part D is attached to the frame part B so as to be reciprocally movable in the horizontal direction. The drive unit C forcibly moves the horizontal moving unit D horizontally, and is provided in the frame unit B. A cassette holding portion E is attached to a front portion of the horizontal moving portion D so as to be rotatable and tiltable. The tilting unit F switches the cassette holding unit E between a horizontal position and a tilted position in the front upper position, and is provided in the horizontal moving unit D.

FIG. 3 is a block diagram showing a control system.
The control unit G includes first to third position sensors PS1 to PS.
S3 is input-connected, and the first to third standby position selection switches S for selecting the standby position mode.
S1 to SS3 are input-connected, and further, the control unit G is configured to control the drive unit C.

A feature of the present invention is that, as shown in FIG. 1, the standby position of the cassette holding portion E when the cassette m is inserted and removed is selectively variable. Figure 1 (a)
Shows the first standby position WP1 in which the cassette holding section E is stopped in a state where the front end portion d of the horizontal moving section D is substantially aligned with the front surface a of the apparatus body A. In FIG. 1B, the horizontal movement portion D is moved to the front side by a larger amount than the front surface a of the device main body and stopped near the protrusion limit, and the cassette holding portion E is moved.
Also the second standby position WP2 in which it stopped in a horizontal posture
Is shown. In FIG. 1C, although the horizontal moving portion D is small, the horizontal moving portion D further protrudes from the state of FIG. 1C and stops at the maximum protrusion limit. The third standby position WP3 is shown in which the cassette holding unit E is rotated upward to a front upper inclined posture and stopped by driving the tilting unit F.

At the cassette loading position where the cassette holder E is set on the mechanical chassis I as shown in FIG.
All of the first position sensor PS1, the second position sensor PS2, and the third position sensor PS3 are in the ON state (see the first stage in FIG. 4). The first position sensor PS1 changes from the ON state to the OFF state when the horizontal movement section D is horizontally moved to the front side by the drive section C from the cassette loading position to reach the state of FIG. 1A. Switch.
If the user has previously selected the first standby position WP1 as the cassette insertion / removal standby position (this selection is performed by the ON operation of the first standby position selection switch SS1 in FIG. 3), the first position sensor PS1 When the controller G detects the reversal to the OFF state, the controller G stops the drive unit C, and the cassette holding unit E causes the first standby position W shown in FIG.
The movement of the horizontal moving unit D is stopped so as to stop at P1 (see the second stage in FIG. 4). If the user has not selected the first standby position WP1, the protruding movement of the horizontal movement portion D by the drive portion C is continued regardless of the reversal of the first position sensor PS1 to the OFF state.

When the projecting movement of the horizontal moving portion D by the driving portion C is further continued from the state of FIG. 1A, the horizontal moving portion D eventually becomes the state of FIG. 1B, at which point The second position sensor PS2 switches from the ON state to the OFF state. If the user has previously selected the second standby position WP2 as the cassette insertion / removal standby position (this selection is ON of the second standby position selection switch SS2 in FIG. 3).
Performed by the operation), O of the second position sensor PS2
The control unit G that detects the reversal to the FF state stops the driving unit C, and moves the horizontal moving unit D so that the cassette holding unit E stops at the second standby position WP2 shown in FIG. 1B. Stop (see the third row in FIG. 4). At this time, the tilting portion F
Does not operate, and therefore the cassette holding portion E maintains a horizontal posture.

If the user has not selected the second standby position WP2, the second position sensor PS2 O
The protruding movement of the horizontal moving portion D by the driving portion C is continued regardless of the reversal to the FF state.

If the user has not selected the first standby position WP1 or the second standby position WP2 as the cassette insertion / removal standby position and has selected the third standby position WP3 (this selection is the first in FIG. 3). 3 Standby position selection switch SS3 ON
1), the projecting movement of the horizontal moving portion D by the driving portion C is further continued, although slightly from the state of FIG. 1B. Then, the horizontal moving part D
Moves slightly toward the maximum projection limit, and the tilting part F operates along with the horizontal movement, and the cassette holding part E moves from the horizontal position to the front upper tilted position as shown in FIG. It turns up and turns. When the horizontal movement unit D reaches the maximum protrusion limit, the third position sensor PS3 switches from the ON state to the OFF state, the control unit G that detects this switching stops the driving unit C, and the cassette holding unit E The movement of the horizontal moving portion D is stopped so as to stop at the third standby position WP3 shown in FIG. 1C (see the fourth step in FIG. 4).

FIG. 4 shows a cassette loading position and three standby positions WP1 to WP3 and three position sensors PS1 to PS.
It is a state relationship diagram showing the relationship between S3 and the positions of the horizontal movement section D and the cassette holding section E.

Next, the operation of the control unit G will be described with reference to the flow charts of FIGS. First, the standby mode selection setting will be described with reference to FIG. The user sets the desired cassette insertion / removal position to the three standby positions WP1.
To WP3, the corresponding selection switch of the three standby position selection switches SS1 to SS3 is pressed and operated. The control unit G determines in step n1 whether or not the first standby position selection switch SS1 is operated, and if the result is affirmative, the process proceeds to step n2 to set the selection standby position register wp to "1". If the determination in step n1 is negative, the process proceeds to step n3 to determine whether or not the second standby position selection switch SS2 has been operated. If the determination is affirmative, the process proceeds to step n4 to set the selection standby position register wp. Set to "2". If the determination in step n3 is negative, the process proceeds to step n5 to determine whether or not the third standby position selection switch SS3 has been operated,
When the result is affirmative, the process proceeds to step n6 to set the selection standby position register wp to "3". As described above, the value of the selection standby position register wp is set according to the pressed standby position selection switches SS1 to SS3.

Next, the cassette ejection operation will be described with reference to FIG. If there is a discharge command in the determination at step n11, the process proceeds to step n12 to drive the drive section C in the forward direction to start the discharge operation of the cassette m. That is, the cassette holding portion E at the cassette loading position is moved together with the horizontal moving portion D toward the cassette insertion / extraction position. At step n13, the first position sensor PS1 is turned off.
After waiting for the state to be reversed, the process proceeds to step n14, where it is determined whether "1" is set in the selection standby position register wp. If the determination is affirmative, the process proceeds to step n15 to stop the drive unit C. Then, the discharging movement of the horizontal moving portion D is stopped, and the first standby position WP1 in a state in which the front end portion d thereof substantially coincides with the front surface a of the device body.
(See (a) of FIG. 1 and the second stage of FIG. 4).

When the determination of the register wp = 1 is negative in step n14, the process proceeds to step n16 without stopping the drive section C and the second position sensor PS2 is OF
After waiting for the F state to be reversed, the process proceeds to step n17, where it is determined whether or not "2" is set in the selection standby position register wp. If the determination is affirmative, the process proceeds to step n18 to stop the drive unit C. Then, the discharging movement of the horizontal moving section D is stopped, and the cassette holding section E is stopped at the second standby position WP2 which is the vicinity of the maximum protrusion limit (see (b) of FIG. 1 and the third stage of FIG. 4). .
At this time, the cassette holding portion E is in a horizontal posture. When the determination of the register wp = 2 in step n17 is negative ("3" is set in the selection standby position register wp at this time), the process proceeds to step n19 without stopping the drive unit C. After waiting for the third position sensor PS3 to be turned off, the process proceeds to step n20 to stop the driving unit C. The horizontal movement part D up to the maximum protrusion limit from the time when the second position sensor PS2 is turned off to the time when the third position sensor PS3 is turned off.
By a slight protruding movement of the cassette holding section E, the cassette holding section E stops at the third standby position WP3 in which the cassette holding section E is raised and rotated to the front upper inclined posture with respect to the horizontal moving section D (((1) in FIG. 1). c) and the fourth row of FIG. 4).

Next, the standby position switching operation will be described with reference to FIGS. The user looks at the current standby position of the cassette holding unit E, determines whether it is a proper standby position for the insertion / removal operation of the cassette m, and switches the standby position when it is inappropriate. The standby position is switched by the first to third standby position selection switches SS1 to SS3.
Operation.

In step n31, it is determined whether or not the operated switch is the first standby position selection switch SS1. If the determination is affirmative, the process proceeds to step n32, and the selection standby position register wp is currently set to "1". Determine if it is set. When the register wp = 1, it is not necessary to switch the standby position, so the process ends. However, when the register wp ≠ 1, the register wp is currently set to “2” or “3” and the standby position is changed. Indicates that it is either the second standby position WP2 or the third standby position WP3. Since the first standby position selection switch SS1 is operated in this state, the cassette holding portion E may be moved to the back side. That is, the process proceeds to step n33 to set the selection standby position register wp to "1".
After that, the drive unit C is driven in the reverse direction in step n34. Then, in step n35, after waiting for the first position sensor PS1 to be turned to the ON state, the process proceeds to step n36 to stop the driving section C. Then, the horizontal moving portion D stops at the first standby position WP1 in a state where the front end portion d thereof substantially coincides with the front surface a of the device body (see (a) of FIG. 1 and the second stage of FIG. 4). That is, the standby position is switched to the first standby position WP1 by operating the first standby position selection switch SS1.

If the determination in step n31 is negative, the process proceeds to step n41 to determine whether or not the third standby position selection switch SS3 has been operated. If the determination is affirmative, the process proceeds to step n42. , It is determined whether the selection standby position register wp is currently set to "3". When the register wp = 3, it is not necessary to switch the standby position, so the process ends. However, when the register wp ≠ 3, the register wp is currently set to “1” or “2” and the standby position is reached. Is the first
It is indicated that it is either the standby position WP1 or the second standby position WP2. Since the third standby position selection switch SS3 is operated in this state, the cassette holding portion E may be moved to the front side. That is, after proceeding to step n43 and setting the selection standby position register wp to "3", the driving section C is driven in the forward direction at step n44. Then, after waiting for the third position sensor PS3 to be turned off in step n45, the process proceeds to step n46, and the drive unit C is stopped. Then, in the final stage, the tilting unit F operates and the cassette holding unit E stops at the third standby position WP3 in which the cassette holding unit E has been raised and rotated to the upper upper tilted posture ((c) in FIG. 1 and the fourth stage in FIG. 4). reference). That is,
By operating the third standby position selection switch SS3, the standby position is switched to the third standby position WP3.

If the determination in step n41 is negative, the process proceeds to step n51 to determine whether the second standby position selection switch SS2 is operated, and if the determination is affirmative, the process proceeds to step n52. , It is determined whether the selection standby position register wp is currently set to "2". When the register wp = 2, it is not necessary to switch the standby position, so the process ends. However, when the register wp ≠ 2, the register wp is currently set to “1” or “3” and the standby position is set. Is the first
It is shown that it is either the standby position WP1 or the third standby position WP3.

Therefore, the process proceeds to step n53 to determine whether or not the register wp = 1 at present. If this determination is affirmative, it means that the second standby position selection switch SS2 has been operated while the current standby position is the first standby position WP1, and therefore the cassette holding portion E is moved to the front side. Just do it. That is, step n
After proceeding to 54 and setting the selection standby position register wp to "2", the drive section C is driven in the forward direction in step n55. Then, in step n56, after waiting for the second position sensor PS2 to reverse to the OFF state, step n
Proceeding to 57, the drive unit C is stopped. Then, the cassette holding portion E moves to the second standby position WP which is the closest to the maximum protrusion limit.
2 (see (b) of FIG. 1 and the third stage of FIG. 4). At this time, the cassette holding portion E is in a horizontal posture. That is, the first standby position WP1 to the second standby position WP2 are operated by operating the second standby position selection switch SS2.
Has been switched to.

The register wp = 1 at step n53
When the determination is negative, the current standby position is the third standby position WP3, and the second standby position selection switch SS2 is operated in that state, so the cassette holding portion E is moved to the rear side. Just move it a little towards. That is, the process proceeds to step n58 and the selection standby position register w
After setting p to "2", the drive section C is driven in the reverse direction in step n59. Then, in step n60, after waiting for the second position sensor PS2 to reverse to the ON state, the process proceeds to step n61, and the drive unit C is stopped. Then, the cassette holding unit E stops at the second standby position WP2 (see (b) of FIG. 1 and the third stage of FIG. 4). At this time, the cassette holding portion E is in a horizontal posture. That is, by operating the second standby position selection switch SS2, the third
This means that the standby position WP3 has been switched to the second standby position WP2.

When the VTR is installed at a position higher than the eye level, it is preferable to select the first standby position WP1 as the standby position for inserting / removing the cassette. Also, VTR
When is installed between the eye level and the waist level, it is preferable to select the second standby position WP2 as the standby position for inserting / removing the cassette. When the VTR is installed at a height lower than the waist, the third position is set as the standby position for inserting / removing the cassette.
It is preferable to select the standby position WP3.

Examples will be described below at a more specific level.

FIG. 9 is a plan view of a cassette loading device in a video tape recorder, FIG. 10 is a front view thereof, and FIG. 11 is a side view thereof. 12 is a plan view of the magnetic tape drive mechanism, FIG. 13 is a front view thereof, and FIG. 14 is a side view thereof.
FIG. 15 is a plan view of the drive section of the cassette loading device in an exploded state, and FIG. 16 is a side view thereof.

First, the frame portion B will be described with reference to FIGS. 9 to 11, 15 and 16. Right frame 1
The left frame 2 and the left frame 2 are connected by a top plate 3 and a recording switch angle 4 in a state of being erected at a predetermined interval. A recording switch 59 is attached to the recording switch angle 4. Two guide rail roller shafts 5 are planted in each of the right frame 1 and the left frame 2, and a guide rail roller 6 is rotatably supported on each guide rail roller shaft 5.

Reference numeral 1d denotes a stopper portion provided inside the middle portion of the right frame 1, which is brought into contact with a front convex portion 40n and a rear convex portion 40o of a right drive rack rail 40, which will be described later, to move in the front-rear direction. It is a stopper portion that defines a moving front end and a moving rear end of the moving right drive rack rail 40. The same applies to 2d.

Next, the drive section C will be described with reference to the same drawing. A cam gear shaft 7 and a worm wheel shaft 9 are planted in the right frame 1, and the right cam gear 10 and
And the worm wheel 12 are rotatably supported.
The small diameter gear 10b of the right cam gear 10 and the worm wheel 1
Two small diameter gears 12b are meshed with each other. A cam gear shaft 8 is planted in the left frame 2, and a left cam gear 11 is rotatably supported on the cam gear shaft 8. A right-side synchro gear 14a and a left-side synchro gear 14b are fixed to both ends of a main shaft 13 which is bridged between the right-side frame 1 and the left-side frame 2.
4a and 14b are designed to rotate synchronously. The right synchro gear 14a is the large diameter gear 1 of the right cam gear 10.
0a, the left synchro gear 14b is meshed with the gear 11a of the left cam gear 11, and the right cam gear 10 and the left cam gear 11 as drive gears are driven and rotated in synchronization with each other. Warm foil 12
The worm gear 16 is meshed with the large diameter gear 12a. This worm gear 16 is a worm angle 1
Both ends are supported by a bearing 17 fixed to No. 5 and a pulley 19 press-fitted into the output shaft of a drive motor 18. The worm angle 15 that fixes the drive motor 18 with screws is fixed to the right frame 1 with screws.

Both the first switch lever 20 and the second switch lever 21 are rotatably supported by the right frame 1, and the first switch lever 20 is urged clockwise by a switch lever spring (not shown). Second
The switch lever 21 is biased counterclockwise.
Both the first and second cassette control switches 22 and 23 are attached to the right frame 1.
The first case switch 22 corresponds to the third position sensor PS3 in FIG. The start sensor 24 is attached to the right frame 1, and the end sensor 25 is attached to the left frame 2. The right skate plate lock 26 and the left skate plate lock 27 are rotatably attached to skate plate lock shafts 28, 28 planted in the right frame 1 and the left frame 2, respectively, and are not shown. The tip is urged downward by a spring. Both the frames 1 and 2 are engaged with the holes 55e and 55f of the mechanical chassis 55 shown in FIG. 12 through the claws 1a and 2a of the front part, and the mechanical chassis is formed by the screws inserted into the holes 1b and 2b of the rear part. It is fixed at 55.

Next, the cassette holding portion E will be described with reference to FIGS. Cassette 30 inserted
The slider 31 on which is mounted and moved has stoppers 31a and 31b for restricting the insertion position of the cassette 30. Cassettes 3 are provided on both left and right sides of the slider 31.
The right side holder 32 and the left side holder 33, which guide the side surface of 0, are fixed to form a cassette holder.
A lock release lever 34 for releasing the locked state of the front lid 30a of the cassette 30 is rotatably supported by the right holder 32, and the protrusion 34a of the lock release lever 34 is supported by a lock release lever spring (not shown). The right holder 32 is urged so as to rush inside. The lid opening holder 39 has fulcrum shafts 39a and 39b on both left and right sides thereof rotatably inserted into the holes of the right holder 32 and the left holder 33, respectively. Rotational shafts 32a and 33a are projected to the outside of the right holder 32 and the left holder 33, respectively, and these rotation shafts 32a and 33a are rotatably inserted through the holes of the right holder guide 35 and the left holder guide 36, respectively. There is. That is, the cassette holder including the slider 31, the right holder 32, and the left holder 33 is rotatably held by the right holder guide 35 and the left holder guide 36. The right holder 32 and the left holder 33 are urged counterclockwise by the holder return spring 29 with respect to the holder guides 35 and 36. 32b is an up lever 46 described later.
It is a cam portion for raising and rotating the cassette holding portion E including the left and right holders 32 and 33 by being pushed down by the shaft 46b. 35b
Is a long hole 4 in the vertical direction of the right drive rack rail 40 described later.
Reference numeral 35c is a guide shaft that is inserted into the drive shaft 0a, and 35c is a guide shaft that is fitted into the vertical recess 40b of the right drive rack rail 40. The same applies to 36b and 36c. The lid opening holder 39 further has protrusions 39c and 39d on both left and right sides.
The convex portions 39c and 39d are inserted into the cam groove 35a formed in the right holder guide 35 and the cam groove (not shown) formed in the left holder guide 36, respectively. A right side cassette holding lever 37 and a left side cassette holding lever 38 are rotatably attached to the right side holder guide 35 and the left side holder guide 36, respectively, and are biased outward by a holding lever return spring (not shown). 37a is right down rail 4
4 is a convex portion of the right cassette pressing lever 37 which slides from the cam portion 44c of No. 4 through the concave portion 40k of the right drive rack rail 40 to the cassette spring 53. 38a is also the same. Reference numeral 39e denotes a claw portion provided at the bottom of the lid opening holder 39 for abutting the bottom surface of the front lid 30a of the cassette 30 and slightly opening the front lid 30a.

Next, the horizontal moving section D will be described with reference to FIGS. The horizontal moving section D holds the above-mentioned cassette holding section E so as to be tiltable and vertically movable, and is reciprocally moved in the horizontal direction by a driving section C. The right drive rack rail 40 and the left drive rack rail 41 have guide panels 42 at their front portions.
, And the rear part is connected and fixed by a fixed angle 43. The right drive rack rail 40 has a guide shaft 35b protruding outward from the right holder guide 35,
An elongated hole 40a and a recess 40b are formed in the vertical direction so as to be inserted and guided through 35c, and a cassette spring 53 is attached to a recess 40k formed on the back surface side of the square hole 40j. In the right drive rack rail 40, a recess 40d is formed in a portion where the right down rail 44 slides, and a recess 40e is formed in a portion where the up rail 47 slides and the up lever 46 swings. Further, a recess 40i deeper than the recess 40d is formed in a portion of the right down rail 44 where the cam portion 44c slides. The cam portion 44c presses the convex portion 37a of the right cassette holding lever 37 rotatably attached to the right holder guide 35. The right down rail 44 is the recess 4 of the right drive rack rail 40.
It is slidable by being guided on both the upper and lower sides of 0d. The up lever 46 is rotatably supported by a shaft 40f protruding from the right drive rack rail 40, and its drive shaft 46a is inserted into a long hole 47a of the up rail 47. The up rail 47 is slidable while being guided by the upper and lower surfaces of the recess 40e of the right drive rack rail 40. The down rail lock 48 is rotatably supported by a shaft 40g protruding from the right drive rack rail 40,
The downrail lock spring (not shown) is biased clockwise, and as a result, the downrail lock 48 presses the recess 44f of the right downrail 44, so that the right downrail 44 is biased leftward. It has become. The right down rail 44 is formed with a cam 44d that inserts a guide shaft 35b of the right holder guide 35 inserted into the elongated hole 40a of the right drive rack rail 40 and controls the up and down movement of the right holder guide 35. A rack gear 40c that meshes with the large-diameter gear 10a of the right cam gear 10 is formed on the right drive rack rail 40, and a rack 44e that meshes with the large-diameter gear 10a is also formed on the right downrail 44 at the same height position. The right down rail 44 has a shaft 44a protruding and a recess 44b formed therein, and a down switch lever 52 is rotatably inserted into the shaft 44a. The shaft 52a of the down switch lever 52 is inserted into the guide groove 40h formed in the right drive rack rail 40, and the down switch lever 52 moves as the right down rail 44 moves in the recess 40d. At this time, the shaft 52a is guided by the guide groove 40h so as to rotate around the shaft 44a.
A right guide rail 49 is attached to the outside of the right drive rack rail 40 by a screw, and the right down rack 44, the down rail lock 48, the up lever 46, and the up rail 47 are attached by the right drive rack rail 40 and the right guide rail 49. Sandwiched between. A guide groove 49a for fitting the guide rail roller 6 is formed on the outer side of the right guide rail 49, and a guide rail drive shaft 51 is planted at a height position corresponding to the locus of the cam 10c of the right cam gear 10. It is set up. In addition, 40p is a convex portion that is in sliding contact with the first switch lever 20, 40r is a concave portion that engages with the right skate plate lock 26, 46b is a shaft that is provided on the up lever 46 and presses the cam portion 32b of the right holder 32, 47b is a convex portion that abuts on the stopper portion 1d of the right frame 1, and 57 is provided on the right downrail 44 and presses the guide shaft 35b (inserted through the long hole 40a) of the right holder guide 35 downward. , The cassette 30 to the positioning pins 55a and 55b on the mechanical chassis 55 and the cassette stay 55.
It is a right side crimping spring which is crimped to c and 55d. When the stopper portion 1d of the right frame 1 pushes the convex portion 47b rearward, the up rail 47 moves rearward, and accordingly, the up lever 46 rotates counterclockwise against the spring 29, and the up lever 46 moves. Since the shaft 46b pushes down the cam portion 32b of the right holder 32, the right holder 32 tilts around the shaft 32a and assumes a front upper tilted posture. The same applies to the left holder 33, and the cassette holding portion E is raised and rotated to the inclined posture of the upper front side. This mechanism constitutes the tilting portion F.

The above description is for the right side portion, but the same mechanism is provided for the left side portion.
That is, 45 is a left down rail and 50 is a left guide rail. However, there is no one corresponding to the up rail 47, the up lever 46, and the down switch lever 52, and in this connection, the left drive rack rail 41 corresponds to the recess 40e, the shaft 40f, and the guide groove 40h. There is nothing, and the left downrail 45 has an axis 4
4a and the concave portion 44b do not exist. Except for these points, the right side portion and the left side portion are symmetrical in mechanism and shape.

In the left frame 2, the first position sensor PS shown in FIG.
The first limit switch 71 corresponding to 1 and the second limit switch 72 corresponding to the second position sensor PS2
And are provided so as to be in sliding contact with the side surface of the left guide rail 50. The first limit switch 71 includes the left and right drive rack rails 40 and 41, the left and right guide rails 49,
When the horizontal moving portion D formed of 50 or the like is projected and moved, when its front end portion d substantially coincides with the front surface a of the device body A, it is separated from the rear end of the left guide rail 50 and is inverted from the ON state to the OFF state. , Conversely, the horizontal movement part D from that position
When is retracted, it comes into contact with the rear end of the left guide rail 50 and is inverted from the OFF state to the ON state. Further, the second limit switch 72 is separated from the rear end of the left guide rail 50 when the horizontal movement portion D is projected and moved to the position closest to the maximum projection limit, and is inverted from the ON state to the OFF state. To horizontal moving part D
When is retracted, it comes into contact with the rear end of the left guide rail 50 and is inverted from the OFF state to the ON state.

The drive section C, the horizontal moving section D, and the cassette holding section E, which are roughly divided into three parts as described above, have the cassette holding section E attached to the horizontal moving section D.
In addition, the driving unit C drives the cassette holding unit E and the horizontal moving unit D. Specifically, it is as follows. The guide shaft 35b of the right holder guide 35 is inserted into the longitudinal elongated hole 40a of the right drive rack rail 40 and is inserted into the cam 44d of the right downrail 44, and the other guide of the right holder guide 35 is inserted. Since the shaft 35c is fitted in the vertical recess 40b of the right drive rack rail 40, the right holder guide 35 is vertically movable. Since the left holder guide 36 is also vertically movable by the same structure, the cassette holder E (the left and right holders 3
2, 33 and the left and right holder guides 35, 36) are slidable up and down by the cams 44d (one of which is not shown) of the left and right down rails 44, 45, so that the cassette holding portion E moves horizontally. It is attached so that it can move up and down. The lateral guide groove 49a of the right guide rail 49 and the lateral guide groove 50a of the left guide rail 50 are slidably fitted to four guide rail rollers 6 pivotally supported by the left and right frames 1 and 2. As a result, the horizontal moving portion D is attached to the frame portion B so as to be slidable in the horizontal direction. The right drive rack rail 40 is formed with projections 40n and 40o, and the projection 40n abuts the stopper portion 1d of the right frame 1, while the projection 40o is formed on the up rail 47.
By contacting the stopper portion 1d of the right frame 1 via b and by similarly configuring the left side, a stopper of the movement path of the horizontal moving portion D is configured. The large-diameter gear 10a of the right cam gear 10 meshes with the rack gear 40c of the right drive rack rail 40 and the rack 44e of the right down rail 44, and similarly the left cam gear 1
The first gear 11a meshes with the rack gear 41e of the left drive rack rail 41 and the rack 45e of the left down rail 45 to form the drive unit C together with the transmission system from the drive motor 18.

Next, the operation of the cassette loading device configured as described above will be described.

23 to 32 are operation explanatory views of the right side surface of the cassette loading device, FIGS. 23 to 27 are operation explanatory views of the horizontal moving part D, and FIGS. 28 to 32 are operation explanatory views of the cassette holding part E. Is.

Hereinafter, for convenience of explanation, it is assumed that a third standby position WP3 (see (c) of FIG. 1) is set as the cassette insertion / removal standby position in which the cassette holding portion E is in a front upper inclined posture. To do. That is, it is assumed that "3" is set in the selection standby position register wp. For convenience of description, the operation will be described centering on the right side.

23 and 28 show the eject state. The left and right drive rack rails 40 and 41 in the horizontal moving portion D are slid from the front surface a of the main body of the apparatus to a position (maximum protruding limit) protruding outward. At this time, the convex portion 40o of the right drive rack rail 40 is in contact with the stopper portion 1d (see FIG. 15) of the right frame 1 via the convex portion 47b of the up rail 47, and the maximum protrusion of the horizontal moving portion D is made. Regulates the state. Since the convex portion 47b is in contact with the stopper portion 1d, the up rail 47 is in a state of sliding to the innermost side relative to the right drive rack rail 40, and the long hole 47 is formed.
The up lever 46 in which the drive shaft 46a is inserted into a is rotated counterclockwise around the shaft 40f against the holder return spring 29, and the shaft 46b of the up lever 46 pushes down the cam portion 32b of the right holder 32. The left and right holders 32 and 33 are rotated clockwise around the rotary shafts 32a and 33a with respect to the left and right holder guides 35 and 36. That is, the cassette holding portion E, which integrates the right holder 32, the left holder 33, the slider 31, and the lid opening holder 39, is raised and rotated to a front upper inclined posture as illustrated. This is the function of the tilting unit F. At this time, the protrusions 3 on both sides of the lid opening holder 39
9c and 39d (see FIG. 18) are right side holder guides 35
Since the positions are regulated by the cam grooves 35a and 36a (see FIG. 19) of the left holder guide 36, the rotation of the lid opening holder 39 is regulated. The left and right downrails 44, 45 are urged to the left by being pushed by the downrail locks 48 urged clockwise by a downrail lock spring (not shown). The guide shafts 35b and 36b of the left and right holder guides 35 and 36 are connected to the cams 44 of the down rails 44 and 45.
It is located at the uppermost position of d (one is not shown), and the holder guides 35 and 36 are held at the uppermost position. Then, the first switch lever 20 contacts the convex portion 40p of the right drive rack rail 40 and is rotated to the illustrated position while being urged clockwise by the switch lever spring (not shown), and corresponds to the third position sensor PS3. The first cassette computer switch 22 is turned off. Further, the second limit switch 72 (see FIG. 20) corresponding to the second position sensor PS2 also has the first position sensor PS2.
The first limit switch 71 corresponding to 1 is also in the OFF state.

In the state of FIG. 23 and FIG. 28 in which the cassette holding portion E is in the inclined posture of the upper front side, the guide panel 42 is shown.
By pushing (see FIG. 20) toward the back side or pushing down the cassette 30 or the slider 31, the cassette holding portion E and the horizontal moving portion D move horizontally toward the back side, and FIGS. The state becomes as shown in. This corresponds to the start of the loading operation of the cassette 30. Horizontal moving part D
When the right side drive rack rail 40 in FIG. 2 moves to the back side, the up rail 47 becomes free from the stopper portion 1d (see FIG. 15), and the right side holder 32 in the cassette holding portion E is counterclockwise by the urging force of the holder return spring 29. In the same direction, the slider 31 and the held cassette 30 also rotate in the same direction, and the right holder 32 contacts a stopper (not shown) of the right holder guide 35, and the slider 31 and The cassette holding portion E including the left and right holders 32 and 33 is held at the horizontal position. The lock release lever 34 rotatably supported by the right holder 32 in a state where the convex portion 34a (see FIG. 17) is urged toward the inner side is such that the right holder 32 is rotated to the front upper inclined posture. At this time, the convex portion 34a does not project inside the right holder 32 because it abuts on the cam portion (not shown) of the right holder guide 35, but the right holder 32 is rotated counterclockwise as described above. When the lock release lever 34 is rotated and brought into a horizontal state, the lock release lever 34 is released from the contact with the cam portion (not shown), so that the convex portion 34a of the lock release lever 34 projects into the right side holder 32. A lever (not shown) for locking the front lid 30a provided on the cassette is pushed to release the locked state of the front lid 30a (see FIG. 17) of the cassette 30. The protrusions 39c and 39d (see FIG. 18) on both sides of the lid opening holder 39 are pushed up by the cam grooves 35a and 36a (see FIG. 19) of the left and right holder guides 35 and 36, so that the lid opening holder 39 moves counterclockwise. Front lid 30 of cassette 30 that has been rotated and unlocked
The a is slightly opened by the claw portion 39e (see FIG. 19) of the lid opening holder 39.

An important point in the operation during this period is that when the horizontal moving part D (driving rack rails 40, 41) moves backward until the cassette holding part E (holders 32, 33) is in the horizontal posture, the first switch is turned on. Since the lever 20 is released from the contact of the convex portion 40p of the right drive rack rail 40 and is rotated clockwise by the switch lever spring (not shown), the first cassette switch 22 corresponding to the third position sensor PS3 is in the OFF state. Is to be turned from ON to ON. By the way, here, it is assumed that the third standby position selection switch SS3 is operated as the cassette insertion / removal standby position to select the third standby position WP3, and there is no particular change (the selection standby position register wp = 3 remains. Be assumed). Therefore, when the inversion of the first cassette switch 22 to the ON state is detected, the drive motor 18 starts rotating in the reverse direction.

The driving torque of the driving motor 18 is transmitted to the worm gear 16, the worm wheel 12 and the right cam gear 10 shown in FIG. 9, and further to the left cam gear 11 via the synchro gear 14a, the main shaft 13 and the synchro gear 14b. The left and right drive rack rails 40, 41 and the left and right guide rails 49, 5 in the horizontal moving section D are transmitted.
0 (see FIG. 20) horizontally toward the inner side,
The state shown in FIGS. 25 and 30 is obtained.

Immediately after the movement of the second position sensor PS2 from the state of FIG. 24 toward the back side is started, the second position sensor PS2
The limit switch 72 (see FIG. 20) inverts from the OFF state to the ON state when the rear end of the left guide rail 50 comes into contact with the limit switch 72. Further, in the middle of reaching the state of FIG. 25, the horizontal moving portion D (the drive rack rail 40,
Immediately after the front end portion d of 41) coincides with the front surface a of the device body, the first position sensor PS that has been in the OFF state until then.
The first limit switch 71 (see FIG. 20) corresponding to 1 is switched to the ON state when the rear end of the left guide rail 50 comes into contact with this. However, here, it is assumed that the third standby position selection switch SS3 is operated as the cassette insertion / removal standby position and the third standby position WP3 is selected, and there is no particular change (selection standby position register wp = 3).
Therefore, the drive motor 18 continues to rotate in the reverse direction. In addition, by going through the above operation,
All of the first limit switch 71 that is the first position sensor PS1, the second limit switch 72 that is the second position sensor PS2, and the second cassette switch 23 that is the third position sensor PS3 are all turned on. It is in a state.

As shown in FIG. 25, the drive rack rail 4
The rack gears 40c and 41c of 0 and 41 are cam gears 10,
It meshes with 11 gears 10a and 11a. These gears 10a and 11a are racks 44 of down rails 44 and 45.
Both e and 45e are in mesh. Guide rails 49, 5
0 (see FIG. 20) each guide rail drive shaft 5
1, 51 are cams 10c and 11c of the cam gears 10 and 11, respectively.
Is in contact with. The cams 10c, 11c are the gears 10a,
The horizontal movement amount of the drive rack rails 40 and 41 by 11a and each guide rail drive shaft 5 by the cams 10c and 11c.
The shape is such that the movement amounts of 1, 51 are the same. By rotating the cam gears 10 and 11, the respective gears 1
0a and 11a are racks 44 of downrails 44 and 45
The guide rail drive shafts 51, 51 are moved by the cams 10c, 11c while meshing with the wheels e, 45e, and the drive rack rails 40, 41 are moved further inward. At this time, the drive rack rails 40 and 41 and the down rail 4
The relative position with respect to 4, 45 does not change, and FIG.
The state becomes as shown in.

In the state shown in FIG. 26, the convex portions 40n and 41n of the left and right drive rack rails 40 and 41 and the stopper portions 1d and 2d (see FIG. 15) of the left and right frames 1 and 2 contact each other, and the cam gear 10 , 11 cams 10
Since the c, 11c and the guide rail drive shafts 51, 51 are in contact with each other, the drive rack rails 40, 41 are stopped from moving and fixed in position. Further, when the cam gears 10 and 11 rotate, the racks 44e and 45e are locked while the drive rack rails 40 and 41 are fixed in position.
The down rails 44 and 45 move to the inner side by engagement with the cam portions 44c and 45 of the down rails 44 and 45.
c (see FIG. 20) is a convex portion 37 of the cassette pressing lever 37, 38 attached to the holder guide 35, 36.
a, 38a (see FIG. 18). The cassette pressing levers 37 and 38 rotate inward to hold the cassette 30 by pressing it from above. Further, when the down rails 44 and 45 move to the inner side, the guide shaft 35 of the holder guides 35 and 36 inserted into the cam 44d (one of which is not shown).
b and 36b are also pressed by the cam 44d (one of which is not shown) and guided by the elongated hole 40a (one of which is not shown) to descend, and along with this, the holder guides 35 and 36 and the cassette holding portion E (holder 32, 33) also descends. Then, the convex portions 37a of the cassette pressing levers 37 and 38,
38a is a cam portion 44c, 4 of the down rail 44, 45.
Drive rack rail 4 separated from 5c (see FIG. 20)
The cassette springs 53, 5 move to the recesses 40k, 41k of 0, 41 (see FIG. 22) and further descend.
3, the cassette pressing levers 37 and 38 are kept rotated inward, and the cassette 30 is lowered while the cassette 30 is pressed and held from above.

The left and right skate plate locks 26 and 27 are rotatably attached to the frames 1 and 2 (see FIG. 9) while being biased clockwise by a skate plate lock spring (not shown). However, the projection 26a (one of which is not shown) is fixed in position by contacting the upper edges of the holder guides 35 and 36. When the holder guides 35 and 36 descend as described above, the skate plate lock 2
6, 27 are rotated clockwise by the urging force, and the tips thereof are inserted into the recesses 40r (one of which is not shown) of the drive rack rails 40, 41 to lock the drive rack rails 40, 41 from moving in the eject direction. . When the holder guides 35 and 36 descend, the open lever 60 (see FIG. 14) attached to the mechanical chassis 55 opens the lid opening holder 39 and the front lid 30a of the cassette 30.

When the down rails 44 and 45 move toward the rear side to the position shown in FIG. 27, the cam 44d (one of which is not shown) causes the holder guides 35 and 36 and the cassette holding portion E (holders 32 and 33) to move further. The cassette 30 is pushed down and positioned by the positioning pins 55a and 55b (see FIG. 12 to FIG. 14) implanted in the mechanical chassis 55, and the positioning pins 55a and 5
The cassette 30 is loaded on the end surface of 5b and the cassette stays 55c and 55d, and the pressure spring 57 (one of which is not shown) presses the guide shafts 35b and 36b of the holder guides 35 and 36 downward to move the cassette 30 to the positioning pins 55a and 55
It is crimped to b and the cassette stays 55c and 55d. Also, with the movement of the down rails 44, 45 to the inner side,
The shaft 52a of the down switch lever 52 rotatably attached to the right down rail 44 is guided along the guide groove 40h of the right drive rack rail 40, and the down switch lever 52 rotates clockwise and the second switch lever 21 is pressed and rotated counterclockwise to switch the second cassette switch 23 from the ON state to the OFF state. As a result, the end of the loading operation of the cassette 30 is detected, and the driving of the drive motor 18 is stopped.

Since the left side, which is the opposite side, is also driven in synchronization by the synchro gears 14a, 14b and the main shaft 13, the up lever 46, the up rail 47, the first cassecon switch 22, and the second cassecon switch. The same operation as the right side is performed except that the 23 and the down switch lever 52 are not provided.

When the selection standby position register wp is set to "3", the eject operation is performed in the reverse operation to the above operation, and the completion of the eject operation is completed by the horizontal movement section D.
When the (driving rack rails 40, 41) are at the positions shown in FIG. 23, the first cassette switch 22 which is the third position sensor PS3 is switched from the ON state to the OFF state, which is detected as the end of the eject operation and is used for driving. Motor 1
Stop 8. In this case, the cassette holding portion E (holders 32 and 33) is in the front upper inclined posture shown in FIG.

Before the eject operation is started, when the first standby position selection switch SS1 is pushed and the first standby position WP1 is selected as the cassette insertion / removal standby position, the rear end of the left guide rail 50 is moved to the first position. The first limit switch 71, which is the first position sensor PS1 (see FIG. 20), is separated from the first limit switch 71 (see FIG. 20).
The drive motor 1 when the N state is reversed to the OFF state
8 is stopped, and the cassette holder E (holders 32, 3
3) is the first standby position WP1 in which the front side a of the device main body a
Will stop at. Further, when the second standby position selection switch SS2 is pushed and the second standby position WP2 is selected as the cassette insertion / removal standby position, the rear end of the left guide rail 50 is the second position sensor PS2. The second limit switch 72 is separated from the limit switch 72 of FIG.
When it is reversed to the state, the drive motor 18 is stopped, and the cassette holding portion E is stopped at the second standby position WP2 that protrudes from the front surface a of the apparatus main body to a position near the maximum projection limit. Further, the third standby position selection switch SS3 is pressed to operate as the cassette insertion / removal standby position, which is the third standby position W
When P3 is selected, the cassette holding portion E (holders 32 and 33) is raised and rotated to the front upper inclined posture, and the convex portion 40p of the right drive rack rail 40 (see FIG. 23).
(See) pushes down the first switch lever 20, and turns on the first position switch 22 which is the third position sensor PS3.
The drive motor 1 when the N state is reversed to the OFF state
No. 8 is stopped, the cassette holding portion E is projected to the maximum projection limit, and the cassette holding portion E is tilted upward.
It will stop at P3.

Further, three standby position selection switches SS1
Through the selective operation of SS3 to SS3, the cassette insertion / removal standby position can be changed in a state in which the horizontal movement portion D is not retracted to the back side from the first standby position WP1 shown in FIG. . That is, when the insertion / removal operation of the cassette 30 is not convenient for the user at the first standby position WP1, the second standby position WP2 or the third standby position WP3.
When the second standby position WP2 is inconvenient, it can be switched to the first standby position WP1 or the third standby position WP3, and the third standby position WP
3 is inconvenient, the first waiting position WP1 or the second
It is possible to switch to the standby position WP2.

[0055]

As described above, in the case of the first cassette loading device, as the standby position for inserting and removing the cassette, the standby position in which the horizontal moving portion projects from the front surface of the device body and the front end portion of the horizontal moving portion are in the front surface of the device body. In the case of the second cassette loading device, a standby position in which the horizontal moving portion projects from the front surface of the main body of the device and a standby position in which the cassette holding portion is in a front upper inclined posture. By setting two, and making them selectable, it is possible to select a more suitable standby position according to the installation conditions such as the installation height of the equipment, and it is possible to increase the degree of freedom of cassette insertion and removal operations. It was

[Brief description of drawings]

FIG. 1 is a side view schematically showing an operation of a cassette loading device according to an embodiment of the present invention.

FIG. 2 is a side view schematically showing the structure of the cassette loading device of the embodiment.

FIG. 3 is a block diagram showing a control system of the cassette loading device of the embodiment.

FIG. 4 is a state relationship diagram showing the operation of the cassette loading device of the embodiment.

FIG. 5 is a flowchart showing an operation for setting standby mode selection of the cassette loading device of the embodiment.

FIG. 6 is a flowchart showing an operation of cassette ejection of the cassette loading device of the embodiment.

FIG. 7 is a flowchart showing an operation of switching the standby position of the cassette loading device of the embodiment.

FIG. 8 is a flowchart showing an operation of switching the standby position of the cassette loading device of the embodiment.

FIG. 9 is a plan view showing the cassette loading device of the embodiment.

FIG. 10 is a front view of FIG. 9.

FIG. 11 is a side view of FIG. 9.

FIG. 12 is a plan view showing a magnetic tape driving device in an example.

FIG. 13 is a front view of FIG.

FIG. 14 is a side view of FIG.

FIG. 15 is a plan view showing a driving unit in the example.

16 is a front view of FIG.

FIG. 17 is a plan view showing a cassette holding portion and a cassette according to the embodiment.

FIG. 18 is a front view showing the cassette holding portion in the embodiment.

FIG. 19 is a side view showing the cassette holding unit in the embodiment.

FIG. 20 is a plan view showing a horizontal moving unit in the embodiment.

21 is a front view of FIG. 20. FIG.

FIG. 22 is a side view of the drive rack rail according to the embodiment.

FIG. 23 is a side view of the horizontal moving unit according to the embodiment.

FIG. 24 is a side view of the horizontal movement unit used for explaining the operation.

FIG. 25 is a side view of the horizontal moving unit used for explaining the operation.

FIG. 26 is a side view of the horizontal moving unit used for explaining the operation.

FIG. 27 is a side view of the horizontal movement unit for explaining the operation.

FIG. 28 is a side view of the cassette holding portion for explaining the operation.

FIG. 29 is a side view of the cassette holding portion for explaining the operation.

FIG. 30 is a side view of the cassette holding portion for explaining the operation.

FIG. 31 is a side view of the cassette holding portion used for the operation description.

FIG. 32 is a side view of the cassette holding portion for explaining the operation.

[Explanation of symbols]

A: device body, a: front of device body, B: frame part, C: drive part, D: horizontal moving part, d: front end part of horizontal moving part, E: cassette holding part, F ...... Tilting part,
G ... Control unit, PS1 ... First position sensor, PS2 ...
… Second position sensor, PS3 …… Third position sensor, S
S1 ... first standby position selection switch, SS2 ... second standby position selection switch, SS3 ... third standby position selection switch, WP1 ... first standby position, WP2 ... second standby position, WP3 ... ... third standby position, 1, 2 ... left and right frames, 10, 11 ... left and right cam gears, 18 ... drive motor, 22 ... first cassecon switch, 23 ...
... second cassette switch, 30 ... cassette, 31 ...
… Slider, 32,33 …… Left and right holders, 35,3
6 ... Left and right holder guides, 37, 38 ... Left and right cassette holding levers, 39 ... Lid opening holder, 40,
41 ... Left and right drive rack rails, 44, 45 ... Left and right down rails, 46 ... Up lever, 47 ... Up rail, 49, 50 ... Left and right guide rails, 71 ...
… First limit switch, 72 …… Second limit switch

Claims (2)

[Claims] 1. A cassette loading device configured such that a horizontal moving part provided with a cassette holding part on the front end side is projected and moved toward the front side of the front surface of an apparatus main body to stop, and a standby position for cassette insertion / removal. In addition to the standby position of the front side protruding state, a standby position in which the front end portion of the horizontal moving portion substantially coincides with the front surface of the device body is set, and both standby positions can be selected. Characteristic cassette loading device. 2. A cassette loading device configured such that a horizontal moving part provided with a cassette holding part on the front end side is projected and moved to the front side of the front surface of the main body of the apparatus to stop, and a standby position for cassette insertion / removal. In addition to the standby position of the front side protruding state, the cassette holding part is set to a standby position in which the cassette holding part is in a front upper inclined position with respect to the horizontal moving part in the protruding position, and both standby positions can be selected. A cassette loading device characterized in that