JPH0437328Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an automatic tape cassette loading/unloading device.

PRIOR ART In general, automatic tape cassette loading/unloading devices operate by manually inserting a cassette into a holder to a predetermined position, then the holder moves and the cassette is automatically loaded, and when the cassette is removed, the holder moves in the opposite direction. The cassette is removed from the cassette, and then the operator grasps the cassette and pulls it out. The cassette is manually returned to the same position it was inserted into.

Problems that the invention aims to solve: In order to move the cassette together with the cassette holder, it is necessary to insert the cassette deep into the holder to a certain extent. The problem was that it was difficult.

The object of the present invention is to provide an automatic tape cassette loading/unloading device that solves the above-mentioned problems.

Means and Effects for Solving the Problems In FIG. 1, 1 is a holder which accommodates a tape cassette 2 inserted in the direction of arrow _A1 .

Reference numeral 3 denotes a holder moving mechanism consisting of a gear train, which is operated by a motor 4 and moves the holder 1 between the insertion (removal) position P ₁ shown by the solid line in the figure and the mounting position P ₂ shown by the two-dot chain line. Move it back and forth along the trajectory represented by 5.

Reference numeral 6 denotes a spring biasing mechanism, which is bent by the subsequent rotation of the motor 4 after the moving holder 1 reaches the above positions _P1 and _P2 , stores spring force, and uses the stored spring force to bias the holder. 1 is held at the mounting position _P2 when the cassette is attached, and at the insertion (removal) position _P1 when the cassette is removed.

Reference numerals 7 and 8 designate rubber rollers, which are provided near the cassette insertion opening 9, and are placed near the left and right ends of the upper surface 2a of the cassette holder 2 housed in the holder 1 which has returned to the position _P1 by the detachment operation. part 2
a ₁ and 2a ₂ contact.

Reference numeral 10 denotes a roller rotation mechanism, which rotates rollers 7 and 8 in the direction of arrow R, that is, in the direction in which the cassette 2 is sent out from the holder ₁ , by the rotation of the motor 4 after the holder 1 is returned to position P1 by the detachment operation.

When installed, the cassette 2 is inserted into the holder 1 to a position _Q1 shown by a dashed line.

At the time of detachment, the cassette 2 returns to the original position _Q1 together with the holder 1, and is then sent out from the holder 1 by the rollers 7 and 8 in the direction of arrow _A2 , and protrudes to the position _Q2 as shown by the two-dot chain line. As a result, sufficient gripping allowance 11 is secured, and the cassette 2
can be easily withdrawn.

Embodiment Next, an embodiment of the present invention will be described with reference to FIG. 2 and subsequent figures. In each figure, parts corresponding to those shown in FIG. 1 are designated by the same reference numerals.

As shown in FIGS. 2 to 4, the left and right side plates 2
0 and 21 and a top plate 22 constitute a frame 23. The holder 1 has rack plates 24 and 25 on the left and right sides.

When the motor 4 rotates forward, the worm gear mechanism 26
The gear 27 is connected to the arrow _B1 direction through the gear assembly 2.
8 rotates in the direction of arrow _C1 , and gear 29 rotates in the direction of arrow _D1 . The rotation of the gear 29 is transmitted to the pinion 32 via the gears 30 and 31 on the one hand, and to the pinion 35 via the gears 33 and 34 on the other hand, so that the pinions 32 and 35 rotate in the directions of the arrows E ₁ and F ₁ , respectively. Rotate to. The rack plates 24, 25 are driven by pinions 35, 32, respectively, and the holder 1 is guided by guide grooves 36, 37, 38 of the side plate 21 and guide grooves (not shown) of the side plate 20, as shown in FIG. Move from position P ₁ to position P ₂ shown in FIG.

When the motor 4 reverses, the gear 27 moves in the direction of arrow _B2 , the gear assembly 28 moves in the direction of arrow _C2 , the gear 29 moves in the direction of arrow _D2 , and the pinions 32 and 35 move in the direction of arrow _E2 , respectively.
F Rotate in _two directions, and holder 1 is in the position shown in Figure 6.
Move from P ₂ to position P ₁ shown in FIGS. 5 and 7.

As shown in FIGS. 8 and 9, the gear assembly 28 includes a base gear 40, and a first gear 41 and a second gear 42 having larger diameters. The first gear 41 and the second gear 42 connect the respective arcuate long holes 41c and 42c to the pole 40a of the base gear 40.
It is assembled by fitting into the frame, and can be rotated independently within a certain angular range. The first gear 41 and the second gear 42 have the same diameter and the teeth 4 of the same module.
1a and 42a, and the teeth 42a of the second gear 42 are in a relationship where the teeth 42a of the second gear 42 are opposed to the toothless portion 41b of the first gear 41.

Reference numeral 43 denotes a torsion coil spring, which is provided with one end hooked to the first gear 41 and the other end hooked to the second gear ₄₂ .
The second gear 42 is biased to rotate in the direction of arrow _C1 .

A coil spring 44 is stretched between the base gear 40 and the first gear 41, and the first gear 41 is biased to rotate in the direction of arrow _C2 with respect to the base gear 40.

The gear assembly 28 normally rotates with the first gear 41 being driven by the gear 27 in the state shown in FIG.
During the mounting operation, the continuous rotation of the motor 4 after the holder 1 reaches the position P ₂ causes the first gear 41 to move further along the arrow C ₁ as shown in FIG.
Rotate in the direction. The pole 41d is the detection switch 4
When 5 is pressed and activated, the motor 4 will stop. Due to the independent rotation (overstroke) of the first gear 41, both of the springs 43 and 44 are elastically deformed and spring force is stored. This stored spring force generates torque in the direction of arrow _C1 in the base gear 40, and this torque is transmitted to the pinions 32 and 35 through the gear train as torque in the directions of arrows _E1 and _F1, respectively, and the holder 1 is spring-biased to the above position _P2 .

During the detachment operation, the _11th
As shown in the figure, only the second gear 42
C Rotates in _two directions. When the pole 42d presses the detection switch 45 to operate it, the motor 41 stops. Due to the independent rotation (overstroke) of the second gear 42, the first spring 43 is elastically deformed and spring force is stored. This stored spring force generates torque in the direction of arrow _C2 in the base gear 40, and this torque is transmitted to the pinions 32 and 35 through the gear train as torque in the directions of arrows _E2 and _F2, respectively, and the holder 1 is spring-biased to the above position _P1 . In this case, the second gear 42 is rotated while elastically deforming the first spring 43, and the second gear 42 is rotated while elastically deforming the first spring 43.
The load on the gear 42 is small, and a large overstroke can be achieved. In other words,
After the holder 1 returns to the position _P1 , the motor 4 can continue to rotate for a longer period of time. By utilizing the rotation of the motor 4 at this time, a portion of the cassette 2 is fed out from the holder 1, as will be described later.

As shown in FIGS. 1 and 2, rollers 7 and 8
is fixed to a shaft 50, and a gear 5 is attached to one end of the shaft 50.
1 is fixed.

As shown in FIG. 12, the shaft 50 has side plates 20,
21 and is pushed upward and supported by a torsion coil spring 53. As a result, the rollers 7 and 8 move towards the cassette 2.
The height is set so as not to interfere with the detachment operation of the gear 51, and the gear 51 is spaced apart from the gear 54.

The rotation of the gear 27 is caused by the timing gear 55, the timing belt 56, the gear 54, and the timing gear 5.
7 to the gear 54, and the gear 54 rotates.

Next, the operation of the above device will be explained.

Manual insertion of the cassette 2 into the holder 1 forces the slider 60 relatively rearward, opening the opening 61, as shown in FIG. Slider 60 is locked in that position. When the cassette 2 is inserted relatively deeply into the holder 1 until it reaches the state shown in Fig. 14 (this position is Q ₁ in Fig. 1), the insertion of the cassette is detected, the motor 4 starts and rotates forward, and the cassette is inserted into the holder 1. The mounting operation is performed automatically.

When the detachment operation is performed, the motor 4 starts and rotates in reverse, and the cassette 2 is automatically detached.

When the holder 1 reaches the position _P1 , as shown in FIG.
1a rides on the shaft 50 and pushes the shaft 50 down against the spring 53. As a result, the rollers 7 and 8 come into contact with the upper surface 2a of the tape cassette 2, and the gear 51 meshes with the gear 54.

As a result, the rollers 7 and 8 rotate in the direction of the arrow R due to the continuous rotation of the motor 4, and the cassette 2 is moved away from the holder 1 by the arrow R, as shown in FIG.
The cassette 2 is fed out in the _A2 direction, and the cassette 2 protrudes from the holder 1 to the position _Q2 , and the gripping margin 11 is secured.

The rotation direction of the gear 51 is the direction in which it bites into the gear 54, and the rollers 7 and 8 are
The cassette 2 is pressed strongly against the cassette 2, so that slippage is unlikely to occur, and the cassette 2 can be fed out reliably.

Also, along with the above-mentioned feeding operation of the cassette 2,
The slider 60 is unlocked and returned, the opening 61 is closed, and the cassette 2 is taken out with the opening 61 closed.

Note that the motor 4 for loading and unloading the cassette is used as the drive source for feeding the cassette 2, so a dedicated motor is not required and the configuration of the apparatus is simple.

Furthermore, the rollers are not limited to the upper surface 2a of the cassette 2.
It may also be in contact with the side or bottom surface of the cassette 2.

Effects of the Invention As described above, the tape cassette automatic loading/unloading device according to the present invention has the following features.

Partial feeding of the tape cassette from the holder in order to secure gripping margin is performed after the holder returns to the insertion position and the movement of the holder stops. Therefore, the movement of the holder stops first, and the movement of the tape cassette stops while the movement of the holder is stopped, compared to the case where the movement of the holder and the movement of the tape cassette stop at the same time. This can reduce the impact.

In addition, the speed at which the tape cassette is fed out from the holder does not need to be faster than the operating speed of the holder, and can be set appropriately, so that the operation of the tape cassette protruding from the front panel of the device does not make the operator feel uncomfortable. It can be done without any trouble.

It is possible to reduce variations in the amount of tape cassettes fed out from the holder each time the tape cassette is removed.

Since the holder is spring-biased to the insertion position and does not wobble, it is possible to stably insert the tape cassette into the holder.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of the automatic tape cassette loading/unloading device of the present invention, and FIGS. 2, 3, and 4 each show the state of an embodiment of the device of the present invention before the tape cassette loading operation starts. A plan view, a front view, a side view, and FIGS. 5 and 6 are diagrams for explaining the tape cassette loading and unloading operation, respectively.
9 and 9 are respectively a front view and an exploded view of the gear assembly, FIGS. 10 and 11 are views showing the gear assembly at the end of the tape cassette attachment/detachment operation and at the end of the detachment operation, respectively. 13 and 13 are views for explaining the feeding operation of the tape cassette by the rollers, respectively, and FIG. 14 is a perspective view of the mounted tape cassette in a state in which the slider is slid, viewed from the bottom side. 1...Holder, 2...Tape cassette, 2a...
...Top surface, 3...Holder moving mechanism, 4...Motor,
6... Spring biasing mechanism, 7, 8... Roller, 10...
...Roller rotation mechanism, 11... Grip allowance, 28...
Gear assembly, 36, 37, 38...Guide groove, 40
...Base gear, 41...First gear, 42...
Second gear, 43...Torsion coil spring, 4
4...Coil spring, 50...Shaft, 51...Gear,
52... Vertical groove, 54... Gear, 55... Timing gear, 56... Timing belt, 57... Timing gear, 70, 71... Leaf spring, 70a,
71a... Slanted tip portion.

Claims (1)

[Claims for Utility Model Registration] A holder for storing a tape cassette, and a holder operated by a motor to move the holder between an insertion position where the tape cassette is inserted and a mounting position where the tape cassette is mounted. a moving mechanism; a mechanism for spring-biasing the holder to each of the positions by successive rotations of the motor after the holder reaches the mounting position and the insertion position; The roller contacts the surface of the tape cassette housed in the holder, and the subsequent rotation of the motor for operating the spring biasing mechanism after the holder returns to the insertion position causes the roller to and a mechanism for rotating the tape cassette in a direction in which the tape cassette is sent out from the holder.