JP2822703B2 - Tape drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vertical type in which a cassette is inserted into a cassette holder which is widely used in portable VTRs and camera-integrated VTRs, and then the cassette holder is pushed vertically to mount the cassette on tape driving means. A tape that allows a tape cassette mounting drive unit with a movable cassette mounting mechanism to be developed into a stationary VTR that has a tape cassette mounting drive unit that can be operated on the front surface and has high operation reliability by inserting a cassette from the front. The present invention relates to a driving device.

[0002]

2. Description of the Related Art In recent years, camera-integrated VTRs have become extremely popular. In particular, in a VHS system VTR, a camera integrated VTR is reduced in size and weight by using a small tape drive mechanism using a small tape cassette (C cassette) compatible with a standard type tape cassette. . The conventional camera-integrated VTR described above with reference to the drawings.
Will be described.

FIG. 11 is a rear view of a camera-integrated VTR using a conventional small tape cassette, and FIG. 12 is a side view showing a tape driving means and a first cassette mounting means in the apparatus. When the tape cassette is mounted on the camera-integrated VTR shown in the figure, the cassette holder 10 is raised from the main body in the direction of arrow B as shown in FIG. Then, the upper lid 2 is pushed and lowered in the direction of arrow C to mount the tape cassette on the tape driving means. FIG. 12 illustrates the tape driving means and the cassette mounting means in the apparatus. A pair of holder guides 11 are provided on a substrate 15 of the tape driving means, and the cassette holder 10 is provided with a pair of links 12 and 1.
The tape cassette 1 is supported by the holder guide 11 and is supported by the holder 3. The first position at which the tape cassette 1 is inserted into the cassette holder 10 and the tape cassette 1 are engaged with the reel base 6 of the substrate 15, and the internal magnetic tape is pulled out by the tape pulling means. It can be moved up and down in a substantially vertical direction between it and the second position where it can be drawn out and run in contact with the external rotary cylinder 17 to record and reproduce. In FIG. 12, after the tape cassette 1 is inserted into the cassette holder 10, the cassette holder is pressed against the spring 14 urged between the cassette holder 10 and the link 12 by pressing the tape cassette 1 from the upper arrow D direction. Move to two positions. When the cassette holder 10 moves to the second position, the cassette holder 10 is locked and held by a holder locking member (not shown) provided on the substrate 15.

Next, when removing the tape cassette 1 from the apparatus, a cassette eject button (not shown) of the apparatus is used.
Press to release the holder locking member. As a result, the spring 14 urged by being pulled between the cassette holder 10 and the link 12 attempts to contract back, and
Is moved in the upward direction by a predetermined trajectory regulated by the long grooves of the links 12, 13 and the holder guide 11, and the cassette holder 10, and is moved to the original first position. With the widespread use of a camera-integrated VTR using the above-mentioned small tape drive mechanism, a stationary VTR capable of directly recording and reproducing a small tape cassette has become necessary. However, when a stationary VTR is constructed using the above-described small tape drive mechanism, it is necessary to take out and put in a tape cassette at the top of the apparatus as shown in FIG. Therefore, as shown in FIG. 14, which has become popular in recent years, it is not possible to operate the apparatus by inserting and removing a tape cassette from the front of the apparatus.

[0005]

However, with the widespread use of a camera-integrated VTR using the above-described small tape drive mechanism, a stationary VTR capable of directly recording and reproducing a small tape cassette has been required. However, when a stationary VTR is constructed using the above-described small tape drive mechanism, it is necessary to take out and put in a tape cassette at the top of the apparatus as shown in FIG. Therefore, as shown in FIG. 14 which has been widely used in recent years, it is not possible to operate the apparatus by inserting and removing a tape cassette from the cassette insertion slot on the front side of the apparatus. Therefore, it is necessary to develop a new mounting means capable of operating the apparatus by inserting and removing the tape cassette from the cassette insertion slot on the front side of the apparatus.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a camera-integrated V
After inserting a cassette into a cassette holder widely used in a TR, the cassette holder is driven vertically by pushing the cassette holder in the vertical direction and mounting the cassette on the tape driving means. The present invention can be applied to a stationary VTR having a tape cassette mounting drive unit which can be inserted from the front side and operated on the front side and has high operation reliability.

[0007]

In order to solve the above-mentioned problems, a tape driving device according to the present invention comprises a cassette insertion slot for inserting a tape cassette, and cassette holding means for holding the tape cassette inserted from the cassette insertion slot. A tape driving means for driving a magnetic tape in the tape cassette; a first position for inserting the tape cassette inserted from the cassette insertion opening into the cassette holding means; and a second position for mounting the tape cassette to the tape driving means. First cassette mounting means for reciprocating the holding means, and a part of the tape cassette coming into contact with the tape cassette when the tape cassette in the cassette holding means is driven from the second position to the first position, from the cassette insertion opening. Tape cassette pushing means provided so as to push outward, and shielding means for shielding the cassette insertion opening Cassette holding means in conjunction with the movement of the shielding means shields the cassette insertion port first position from the second
Connecting drive means for driving the cassette driving means to the position, retreat means for driving the tape cassette pushing means in contact with the connecting drive means, and contacting the cassette insertion surface when the cassette inserted from the cassette insertion slot is inserted into the holding means at the first position. Locking means for locking the tape cassette pushing-out means which is retracted to a predetermined position, and a cassette insertion opening of the shielding means when the tape cassette in the cassette holding means is brought from the second position to the first position. An unlocking means is provided for releasing the locked state of the tape cassette pushing means by the locking means in conjunction with the opening operation.

[0008]

According to this construction, a vertically movable cassette mounting mechanism for inserting a cassette into a cassette holder which is widely used in a camera-integrated VTR, and then vertically pressing the cassette holder to mount the cassette on tape driving means. When developing a tape cassette mounting drive unit into a stationary VTR with a tape cassette mounting drive unit that can be operated from the front by inserting the cassette from the front, it is not necessary to develop new mounting means. By attaching each mechanism means of the present invention to the above-mentioned vertically movable cassette mounting mechanism, it is possible to develop a stationary VTR having a cassette mounting mechanism which can be operated on the front side and has a high operation reliability.

[0009]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a front view of an embodiment of the tape drive of the present invention, and FIG. 2 is a left side view of FIG. 1 and 2
In the figure, 15 is a substrate of the tape driving means, 10 is a cassette holder as holding means, a pair of left and right links 12, 13 and a holder guide 11 are first cassette mounting means,
This is the same as that shown in FIG. The side plates 37 and 38 are mounted on a mounting plate 36 mounted on the substrate 15. Both ends of the shielding angle 22 are rotatably supported by shafts 24, 25 erected on the side plates 37, 38, so that the cassette insertion opening 21 can be opened and closed by the shielding panel 23 attached to the distal end. it can. One end of each of the pair of left and right links 28 and 29 is rotatably supported by shafts 26 and 27 erected at both ends of the shielding angle 22. The other end is connected to the shaft 39,
A connecting arm 3 rotatably supported by a shaft 40 (not shown);
The shafts 32 and 33 erected at one ends of the shafts 0 and 31 are rotatably supported by shafts 32 and 33, respectively, and transmit the movement of the shielding angle 22 to the connecting arms 30 and 31. A spring 42 is urged between the link 28 and the side plate 37, and is normally urged in a direction in which the shielding panel 23 opens the cassette insertion slot. Connecting arm springs 60 and 61 are attached to shafts 34 and 35 erected at the distal ends of the connecting arms 30 and 31, respectively. The connecting arms 30, 31 and the connecting arm springs 60, 61 rotate in the direction of arrow G in conjunction with the movement of the shielding angle 22 in the direction of arrow F that covers the cassette insertion opening 21. At this time, the connecting arm springs 60 and 61 are mounted on the shafts 67 and 6 mounted on both ends of the receiving plate 65 attached to the upper portion of the cassette holder 10.
8, the tape in the cassette holder at the first position against the spring 14 urged between the cassette holder 10 and the link 12 and the spring 42 urged between the link 28 and the side plate 37. The cassette is engaged with the reel base 16 of the substrate 15, the magnetic tape inside is pulled out by a tape pulling means, and the magnetic tape runs alongside an external rotary cylinder 17 to be driven to a second position where recording and reproduction can be performed.

When the cassette holder is driven to the second position, a holder locking member (not shown) provided on the substrate 15
Is locked and held. At this time, the shafts 67 and 68 erected on the receiving plate 65 abut against the cam groove end surfaces 71 and 72 of the connecting arms 30 and 31, respectively.
0, 31 are prevented from rotating in the direction of FIG. Therefore, the shielding panel 23 holds the cassette insertion slot closed. The state at this time is shown in FIG. Next, when removing the tape cassette 1 from the apparatus, the cassette removal button of the apparatus is pressed to drive the motor provided on the substrate 15 to release the cassette holder locked state by the holder locking member. The springs 14 and 42 urged by this move the cassette holder to the links 12 and 13 in order to contract back.
Then, a predetermined trajectory regulated by the long grooves of the holder guide 11 and the cassette holder 10 is driven upward.

A top plate 43 is mounted above the side plates 37 and 38. A cassette pushing lever 46 is attached to the top plate 43, and is supported by a support shaft 45 so as to be slidable along a long groove 47 as shown in FIG. 4, and a spring is pushed in a direction to push out the tape cassette inserted into the cassette holder 10. 44 is energized. On the lower surface of the top plate 43, a locking lever 50 is rotatably supported by a shaft 48, and is urged by a spring 51 to be always kept at the position shown in FIG. As shown in FIG. 5, an unlocking lever 53 is rotatably supported on the connecting arm 30 by a pin 55, and is normally urged by a spring 69 so that the rear portion 54 contacts the bent portion of the connecting arm 30. . Therefore, when pivoting from the position shown in FIG. 2 to the position shown in FIG. 3, the leading end portion contacts the shaft 49 of the locking lever 50, and the lock release lever 53 pivots. The tip is the shaft 4 of the locking lever 50
9 to rotate the locking lever 50 in the direction of arrow H. In FIG. 4, a shaft 59 is erected at the tip of a reversing lever 56 rotatably supported by a shaft 58 erected on the top plate 43, and is inserted into an elongated hole end 73 of the cassette pushing lever 46. The cassette pushing lever 46 can be retracted in the direction in which the rotary cylinder 17 is positioned by the rotation of the retracting lever 56 in contact therewith. When the connecting arm 30 is rotated from the position shown in FIG. 2 to the position shown in FIG. 3, the shaft 66 implanted at the distal end of the connecting arm comes into contact with the end 57 of the retreat lever to rotate the retreat lever 56.

Next, each operation will be described with reference to the drawings. The tape cassette 1 is inserted in FIG. FIG.
FIG. 6 is a view showing a state in which the front surface of the tape cassette 1 inserted into the cassette holder 10 from the cassette insertion opening 21 of the apparatus operation surface 20 comes into contact with the tip of the cassette pushing lever 46. When the cassette is further pushed from this state, the cassette pushing lever 46 retreats against the biasing spring 44, and the shaft 47 implanted on the cassette pushing lever 46 comes into contact with the tip slope 70 of the locking lever 50. The locking lever 50 is rotated in the direction of arrow H about the shaft 48 as a support shaft. The tape cassette 1 is the cassette stopper 18 of the cassette holder 10.
When the shaft 47 comes into contact with the slope portion 70, the contact between the shaft 47 and the slope portion 70 is released, and the locking lever 50 is rotated and held at the position shown in FIG. At this time, the cassette pushing lever 46 is retained at the position shown in FIG. 7 without returning to its original position because the shaft 47 abuts on the engaging surface 52 of the engaging lever 50 and is engaged.

Next, the shielding panel 23 is pressed to close the cassette insertion slot. 2, the connecting arms 30, 31 and the connecting arm springs 60, 61 rotate in the direction of arrow G in conjunction with the movement of the shielding angle 22 in the direction of arrow F that covers the cassette insertion opening 21. At that time, the connecting arm spring 6
Numerals 0 and 61 denote springs 1 that abut against shafts 67 and 68 erected at both ends of a receiving plate 65 attached to the upper portion of the cassette holder 10 and are urged between the cassette holder 10 and the link 12.
4 and the cassette holder 1 at the first position against the spring 42 biased between the link 28 and the side plate 37 shown in FIG.
The tape cassette in the tape cartridge 0 is engaged with the reel base 16 of the substrate 15 and the internal magnetic tape is pulled out by the tape pulling means, and is driven to the second position shown in FIG. I do. When the cassette holder 10 is driven to the second position, it is locked and held by a holder locking member (not shown) provided on the substrate 15. At this time, the shafts 67 and 68 erected on the receiving plate 65 contact the cam groove end surfaces 71 and 72 of the connecting arms 30 and 31, respectively, so that the connecting arms 30 and 31 rotate in the direction of FIG. To lock. Therefore, the shield panel 23 is held with the cassette insertion opening closed. The state at this time is shown in FIG.

Next, when taking out the tape cassette 1 from the apparatus, the cassette removal button of the apparatus is pressed and a motor or the like (not shown) provided on the substrate 15 is driven to lock the cassette holder by the holder locking member. Release the state. As a result, the spring 14 urged by this is retracted to the original position, and the cassette holder is moved to the first position in the upward direction by moving the cassette holder along a predetermined trajectory regulated by the links 12, 13 and the long grooves of the holder guide 11 and the cassette holder 10. Drive as shown in the example. At the same time, the shafts 67, 68 erected on the receiving plate 65 and the cam groove end faces 7 of the connecting arms 30, 31.
1 and 72 are released, and the connecting arms 30 and 31 are moved from the direction of FIG.
In the direction of. Immediately after the cassette holder 10 returns to the first position, and immediately before the connecting arm pivots from the position shown in FIG. 3 to the position shown in FIG. 2, the distal end portion 70 of the unlocking lever 53 attached to the connecting arm 30. Abuts on the shaft 49 of the locking lever 50 attached to the top plate 43 to rotate the locking lever 50 in the direction of arrow H. Therefore, the contact between the shaft 47 of the cassette pushing lever 46 and the locking lever 50 is released, and the position of the tape cassette 1 shown in FIG. 7 is pushed to the position shown in FIG. Therefore, the conventional stationary VTR
The tape cassette can be taken out of the device in the same manner as described above.

Next, the operation of closing the cassette insertion opening by the shielding means after the tape cassette is taken out will be described. In FIG. 2, the shield panel 23 is rotated in the direction of arrow F, and the connecting arm springs 60, 61 attached to the connecting arms 30, 31 are mounted on the shafts 67, 68 mounted on the receiving plate 65.
When the shaft 66 is pivoted to the position shown in FIG.
, The reversing lever is driven from the position shown by the solid line in FIG. 9 to the position 76 shown by the dashed line. As a result, the shaft 59 implanted on the retraction lever comes into contact with the elongated hole end 73 of the cassette pushing lever 46 to drive the cassette pushing lever 46 from the position indicated by the solid line to the position 74 indicated by the alternate long and short dash line. The position at this time is shown in FIG. This position of the cassette pushing lever 46 shown in FIG. 8 is a position where the cassette holder 10 has a clearance X from the position where the cassette holder 10 moves from the first position to the second position and does not hinder the movement. This position can be freely set by the cam surface 57 of the reversing lever 56 depending on the shape of the cassette holder. Without this mechanism, when the cassette holder 10 moves to the second position substantially downward at the position of the cassette pushing lever 46 in FIG. 6, a problem occurs in which the cassette pushing lever and the upper part 78 of the cassette holder abut. . Therefore, a cassette holder to which the present invention can be applied is limited to a cassette holder having no obstacle above the cassette pushing lever inserted therein. This mechanism solves such a problem.

Next, the shielding panel 23 is moved in the direction of arrow F,
8 to the position shown in FIG. At this time, the shaft 66 erected on the connecting arm 30 is
, And the reversing lever is moved to the position 7 indicated by the dashed line in FIG.
Driving from 6 to the position 77 shown by the two-dot chain line. As a result, the shaft 59 implanted on the retraction lever comes into contact with the slot end 73 of the cassette pushing lever 46 to drive the cassette pushing lever 46 from a position 74 indicated by a dashed line to a position 75 indicated by a two-dot chain line. . The position at this time is substantially the same as the position shown in FIGS. 3 and 4, and is a position where the cassette pushing lever 46 is locked by the locking lever 50 or slightly behind the position. When driven to the second position, the cassette holder 10 is locked and held by the holder locking member (not shown) provided on the substrate 15 as described above. At this time, the shaft 37 set on the mounting plate 36,
38 is a cam groove end face 7 of the connecting arms 30 and 31, respectively.
The connecting arms 30 and 31 are connected to
To lock in the direction of. Therefore, shielding panel 2
Reference numeral 3 indicates a state where the cassette insertion slot is closed.

Without this mechanism, the following problem occurs.
When the cassette holder is at the second position, the cassette pushing lever 4 by the locking lever 50 due to an impact on the apparatus or the like.
When the lock of the lock 6 is released, it becomes as shown in FIG. Therefore, when driving the cassette holder 10 to the first position, the cassette holder 10 comes into contact with the cassette pushing lever 46 and cannot be driven. Therefore, by providing the above mechanism, the problem that the locking of the cassette pushing lever by the locking lever is released due to an impact on the apparatus or the like is solved.

As described above, after the cassette is inserted into the cassette holder widely used in the camera-integrated VTR, the cassette is driven vertically to mount the cassette on the tape driving means. By attaching each mechanism shown in the present invention, it is possible to easily and inexpensively deploy the cassette type VTR having a cassette mounting mechanism with a highly reliable operation and a cassette mounting operation on the front of the apparatus. The present invention can be applied to both a small tape cassette and a standard type tape cassette.

[0020]

As described above, the present invention provides a cassette insertion slot for inserting a tape cassette, cassette holding means for holding a tape cassette inserted from the cassette insertion slot,
Tape driving means for driving a magnetic tape in the tape cassette, cassette holding at a first position for inserting the tape cassette inserted from the cassette insertion slot into the cassette holding means, and a second position for mounting the tape cassette on the tape driving means. A first cassette mounting means for reciprocating the means, and a part of the tape cassette which is in contact with the tape cassette when the tape cassette in the cassette holding means is driven from the second position to the first position so that a part of the tape cassette is outside the cassette insertion opening. Tape cassette pushing means provided so as to push out the cassette insertion means, shielding means for shielding the cassette insertion opening, and driving the cassette holding means from the first position to the second position in conjunction with the movement of the shielding means for shielding the cassette insertion opening. Connecting drive means for driving the tape cassette pushing means in contact with the connecting drive means; Locking means for locking the tape cassette pushing-out means, which abuts against the cassette insertion surface and retreats at a predetermined position, when the cassette inserted from the slot is inserted into the holding means at the first position, and a tape cassette in the cassette holding means. And a lock release means for releasing the locked state of the tape cassette pushing means by the locking means in conjunction with the operation of opening the cassette insertion opening of the shielding means when is moved from the second position to the first position. A tape having a vertically movable cassette mounting mechanism for inserting a cassette into a cassette holder as widely used in a camera-integrated VTR and then vertically pressing the cassette holder to mount the cassette on tape driving means. The cassette mounting drive
When a cassette is inserted from the front and used in a stationary VTR with a tape cassette mounting drive that can be operated from the front, a new mounting means that can operate to insert and remove the tape cassette from the cassette insertion slot of the device is developed and installed. By attaching each mechanism of the present invention to the vertically movable cassette mounting mechanism described above, it is possible to simply and easily mount the apparatus on a stationary VTR having a cassette mounting mechanism that can be operated on the front side and has high operation reliability. It can be deployed at low cost. Further, since it is not necessary to remove the cassette mounting mechanism from the tape drive and mount a new mounting means, it is possible to rationalize the number of assembling steps and to eliminate defective work at the time of replacement. Further, in the method of the present invention, a motor is not required to drive the cassette mounting mechanism, so that the cost of the apparatus can be further reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a tape drive device of the present invention.

FIG. 2 is a left side view showing a first operation state of the embodiment.

FIG. 3 is a left side view showing a second operation state of the embodiment.

FIG. 4 is a partial perspective view of the embodiment.

FIG. 5 is a partial perspective view of the embodiment.

FIG. 6 is a sectional view showing a state in which the tape cassette is inserted in the embodiment.

FIG. 7 is a sectional view showing a state where the tape cassette is inserted in the embodiment.

FIG. 8 is a left side view of a third operation state of the embodiment.

FIG. 9 is a view showing the operation of the retreat lever according to the embodiment.

FIG. 10 is a sectional view of the tape cassette in an inserted state according to the embodiment;

FIG. 11 is a rear view of a conventional camera-integrated VTR.

FIG. 12 is a side view showing the configuration of a tape cassette mounting drive section of a conventional camera-integrated VTR.

FIG. 13 is a perspective view showing a configuration of a stationary VTR using a conventional tape cassette mounting drive unit.

FIG. 14 is a perspective view showing the configuration of a conventional front operation type stationary VTR.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tape cassette 10 Cassette holder 11 Holder guide 15 Substrate 16 Reel base 17 Rotating cylinder 21 Cassette insertion opening 22 Shielding angle 23 Shielding panel 26 Link 30 Connecting arm 31 Connecting arm 36 Mounting plate 46 Cassette pushing lever 50 Lock lever 53 Lock release Lever 56 Retraction lever 65 Receiving plate

Claims (1)

(57) [Claims] A cassette insertion slot for inserting a tape cassette; cassette holding means for holding a tape cassette inserted from the cassette insertion slot; tape driving means for driving a magnetic tape in the tape cassette; First cassette mounting means for reciprocating the cassette holding means between a first position for inserting the tape cassette inserted from the insertion opening into the cassette holding means and a second position for mounting the tape cassette on the tape driving means; When,
When the tape cassette in the cassette holding means is driven from the second position to the first position, the tape cassette comes into contact with the tape cassette and pushes a part of the tape cassette outward from the cassette insertion slot. A tape cassette pushing means, a shielding means for shielding the cassette insertion opening, and the cassette holding means being driven from the first position to the second position in conjunction with the movement of the shielding means for shielding the cassette insertion opening. Connecting drive means, retreating means for driving the tape cassette pushing means in contact with the connection drive means, and contacting the cassette inserted surface when inserting the cassette inserted from the cassette insertion slot into the holding means at the first position; Locking means for locking the tape cassette pushing means, which comes into contact and retreats, at a predetermined position; and the cassette holding means When the tape cassette is moved from the second position to the first position, the locking state of the tape cassette pushing means by the locking means in conjunction with the operation of opening the cassette insertion opening of the shielding means. And a lock release means for releasing the lock.