JPH05128683A - Shutter mechanism for preventing falling of 1/2" magnetic tape cartridge - Google Patents

Abstract

PURPOSE:To make small of a space being occupied with a mechanism for preventing falling of a cartridge when the cartridges at an inserting part and a takeout part are operated and also to realize the structure with less parts, in a magnetic tape device having the insert part inserting plural 1/2'' magnetic cartridges and the takeout part for taking them out. CONSTITUTION:A gear of a drive motor is provided on a central part of housing tracks 1, 2, and the racks (A)7 and (B)8 which are respectively attached to L-shaped shutters, (A) and (B)6 are engaged with the gear 9 in a positional relation respectively facing each other. Just before an operator operates the cartridges in the housing tracks 1, 2, the gear 9 of the drive motor is rotated in the clockwise direction and at front sides of each rack, (A)7 and (B)8, the shutters are simultaneously drawn out, and then the falling of the cartridge is prevented. In a release case, the drive motor is rotated in the direction opposite, and then each shutter returns to the position shown in figure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a 1/2 "magnetic tape cartridge (hereinafter simply referred to as" tape cartridge ").
More specifically, the present invention relates to a device in which an operator directly inserts and removes the device from the outside, more specifically, to a shutter mechanism that prevents a cartridge from dropping into the device.

[0002]

2. Description of the Related Art FIG. 2 is a front view showing an example of a conventional fall prevention shutter mechanism for a tape carton. A shutter 10 is provided above the insertion-side storage rack 1. The shutter 10 is a gear 14 driven by a motor (not shown).
And is configured to be guided by the rail-shaped guide 12. By driving the motor, the shutter 10 is extended to the front of the insertion-side storage rack 1,
Prevents the cartridge from falling. A shutter 11 is similarly provided for the take-out side storage rack 2. The shutter 11 is driven separately from the shutter drive and guided by the guide 13 to prevent the cartridge of the take-out side storage rack 2 from dropping.

[0003]

Since the conventional fall prevention mechanism is provided with the shutter mechanism for independently driving the insertion-side storage rack and the extraction-side storage rack, the insertion-side storage rack and the extraction-side storage rack are removed. It is necessary to secure a space for the shutter mechanism in the upper part of the side storage rack, which has a drawback that the space is not used efficiently and the unit becomes large. Also,
Due to the increase in size of the unit, the number of other cartridges to be stored is reduced and the number of parts is increased.
The object of the present invention is to solve the above-mentioned drawbacks. By reducing the number of parts of the shutter mechanism and allowing it to be housed in a narrow space, the efficiency of use of the space of the apparatus is improved and the enlargement of the unit is suppressed, and the cartridge It is an object of the present invention to provide a drop-prevention shutter mechanism for a 1/2 "magnetic tape cartridge which is intended to increase the number of storages.

[0004]

To achieve the above object, a 1/2 "magnetic tape cartridge drop prevention shutter mechanism according to the present invention is provided with an inserting portion for inserting a plurality of 1/2" magnetic tape cartridges and an ejecting portion for taking out a plurality of magnetic tape cartridges. In the magnetic tape device having the above, the racks are respectively attached to the end portions of the first and second shutters, and a gear rotationally driven by a motor is arranged in an intermediate portion between the insertion portion and the extraction portion. The rack of the shutter is engaged with the gear so as to be opposed to each other and displaced in the axial direction of the gear, and the first and second shutters are moved in opposite directions by driving of the motor, and the insertion portion. It is constructed so as to extend to the front of the takeout part. The first and second shutters are each L-shaped, and the combined shape of the first and second shutters when not extended to the front of the insertion portion and the ejection portion is rectangular. Can be configured as follows.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to the drawings. 1 (a) is a front view showing an embodiment of a fall prevention shutter mechanism for a 1/2 "magnetic tape cartridge according to the present invention, and FIG. 1 (b) is a left side view thereof. A shutter mechanism is provided between the two.A gear 9 coupled to the shaft of a drive motor (not shown) is arranged at the center of the insertion side storage rack 1 and the extraction side storage rack 2 and is provided with a shutter (A) 5. A rack (A) 7 and a rack (B) 8 attached to the shutter (B) 6 are engaged with each other.
And (B) 6 are formed of L-shaped plates, and the rack (A) 7 and the rack (B) 8 are fixed to one side of the L-shaped bottom. Further, since the rack (A) 7 and the rack (B) 8 are engaged with each other with the gear 9 sandwiched therebetween, the shape in which the shutters (A) 5 and (B) 6 are incorporated becomes a rectangular shape. ing. Further, the shutters (A) 5 and (B) 6 are installed in a state that they are separated from each other by a distance a so as not to interfere with each other.

In the magnetic tape device having the shutter mechanism, when an operator stores a cartridge in the storage rack 1 on the insertion side from the outside or when the cartridge 4 is taken out from the storage rack 2 on the extraction side, a switch (not shown) is operated. Drive the motor, shutter (A)
5 and (B) 6 will be operated. The gear 9 is rotated clockwise, and the rack (A) 7 is moved upward. As a result, the shutter (A) 5 is moved to a position where it is about to be stored in the storage rack 1 on the insertion side or the cartridge 3 stored therein is prevented from falling.
Similarly to the above, the shutter (B) 6 is also moved downward at the same time, and is moved to a position where the cartridge 4 stored in the storage rack 2 on the take-out side is prevented from falling. As described above, when the shutters (A) 5 and (B) 6 move to the positions where they are prevented from falling, a drive stop signal is sent to the motor, and the shutters (A) 5 and (B) are sent.
6 stops.

Inside the apparatus, when operating the cartridge 3 of the storage rack 1 on the insertion side or the cartridge 4 of the storage rack 2 on the removal side on the apparatus side, the gear 9 of the drive motor is rotated counterclockwise. . As a result, the shutter (A) 5 moves downward and the shutter (B) 6 moves upward, and the shutters (A) 5 and (B) are moved from the front of the storage rack 1 on the insertion side and the storage rack 2 on the ejection side. 6 retreats. When the shutters (A) 5 and (B) 6 are retracted to a predetermined position, a drive stop signal is sent to the motor, and the movement of the shutters (A) 5 and (B) 6 is stopped. FIG. 1A shows a state in which the shutters (A) 5 and (B) 6 are retracted from the front surfaces of the storage rack 1 on the insertion side and the storage rack 2 on the extraction side.

[0008]

As described above, according to the present invention, the two shutters are simultaneously driven by one driving motor gear, so that the cartridge dropping prevention mechanism can be realized with a small number of parts. Further, conventionally, since the shutter mechanism is separately provided for each of the insertion-side storage rack and the extraction-side storage rack, the space for 16 cartridges in total is occupied. According to the present invention, since the shutter mechanism for driving both shutters is provided between the insertion side storage rack and the extraction side storage rack, it is possible to store the cartridge in a narrow space of eight rolls.

[Brief description of drawings]

FIG. 1A is a front view showing an embodiment of a fall prevention shutter mechanism for a 1/2 ″ magnetic tape cartridge according to the present invention, and FIG. 1B is a side view thereof.

FIG. 2 is a front view showing an example of a drop prevention shutter mechanism of a conventional 1/2 ”magnetic tape cartridge. 1 ... Insertion side storage rack 2 ... Ejection side storage rack 3, 4 ... Cartridge 5 ... Shutter (A) 6 ... Shutter (B) 7 ... Rack (A) 8 ... Rack (B) 9 ... Driving motor gear 10, 11 ... Shutter 12, 13 ... Guide 14, 15 ... Driving motor gear

Claims (2)

[Claims] 1. A magnetic tape device having an insertion part for inserting a plurality of 1/2 "magnetic tape cartridges and an extraction part for taking out the same, wherein racks are attached to the end parts of the first and second shutters, respectively. A gear rotatably driven by a motor is arranged in an intermediate portion of the take-out portion, and racks of the first and second shutters are engaged with the gear so as to face each other and shift in the axial direction of the gear. The first and second shutters are moved in directions opposite to each other by driving a motor so as to be extended to the front surfaces of the insertion portion and the extraction portion.
2 "magnetic tape cartridge fall prevention shutter mechanism. 2. The first and second shutters are each L
2. The shape according to claim 1, wherein the combined shape of the first shutter and the second shutter when not extended to the front surface of the insertion portion and the extraction portion is a rectangular shape. A 1/2 "magnetic tape cartridge drop prevention shutter mechanism.