JPH05198063A - Cassette loading device - Google Patents

Abstract

PURPOSE:To enable recording and reproduction without using any cassette adapter by providing a cassette holding means with a small-sized tape cassette guide member which guides a small-sized tape cassette to a specific height- directional position. CONSTITUTION:When a standard tape cassette 22 is inserted into a cassette holding part 1, a small-sized tape cassette guide member 8a is pressed by the front surface part 23 of the standard tape cassette 22 to rotate on a shaft 7 implanted in a top surface plate 4 and move from a position shown by a dotted line to a position shown by a solid line. Further, when the insertion of the standard tape cassette 22 is completed, the small-sized tape cassette guide member 8a further moves forward. Then the moving means of the cassette holding part 1 performs exactly the same operation with the insertion of a small-sized tape cassette to load the standard tape cassette 22 in a magnetic recording and reproduction device main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front loading type cassette loading apparatus in a cassette type magnetic recording / reproducing apparatus, and particularly records a standard tape cassette and a small tape cassette smaller than the standard tape cassette without using an adapter. The present invention relates to a cassette loading device configured to be reproducible.

[0002]

2. Description of the Related Art As a cassette loading device capable of loading both a standard tape cassette and a small tape cassette, for example, a cassette holding means for a standard tape cassette and a small size as disclosed in JP-A-63-287013. There are a mouse change system having a cassette holding means for a tape cassette and a cassette tray system as disclosed in JP-A-1-96859.

[0003]

However, in the above-mentioned method, the number of parts is extremely increased and the cost becomes high, and in the mouse change method, the size of the tape cassette to be inserted before the tape cassette is inserted is increased. There is a problem in use that it must be selected, and in the cassette tray system, there is a troublesome problem that the cassette tray has to be pulled out to the front side from the front panel when the tape cassette is attached and detached.

In view of the above problems, the present invention is constructed such that a standard tape cassette and a small tape cassette can be attached to and detached from the same cassette holding means by the front loading method, and has excellent operability, thinness and low cost. The present invention provides a cassette loading device in which both a standard tape cassette and a small tape cassette can be attached and detached.

[0005]

The present invention is used in a magnetic recording / reproducing apparatus capable of recording / reproducing without using an adapter for both a standard tape cassette and a small tape cassette having a height at least smaller than that of the standard tape cassette. A cassette mounting device, which is capable of detachably holding both a standard tape cassette and a small tape cassette, and a small tape cassette guide member for guiding the small tape cassette to at least a predetermined position in the height direction. The cassette holding means includes a cassette guide member.

[0006]

With this structure, it becomes possible to construct a small tape cassette guide member for guiding the small tape cassette to a predetermined position inside the cassette holding means capable of holding both the standard tape cassette and the small tape cassette. Since it requires only one cassette holding means, it is thin and inexpensive, but it can record and reproduce on both standard tape cassettes and small tape cassettes without using a cassette adapter, and is dedicated to conventional standard tape cassettes. It is possible to realize a cassette mounting apparatus having excellent operability similar to the front loading type cassette mounting apparatus used in most of the cassette mounting apparatuses.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the cassette loading apparatus of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the construction of a cassette mounting apparatus according to an embodiment of the present invention, FIG. 2 is a side view of the essential parts showing a state at a cassette loading / unloading standby position, and FIG. 3 is a front view of the essential parts. is there. In FIG. 3, the cassette holding unit 1 is configured by connecting a bottom plate 2, side plates 3a and 3b, and a top plate 4 in a box shape. 1 and 2, the cassette holding portion 1 includes a guide groove portion 33a formed in a side wall member 32a arranged substantially perpendicular to the substrate 31 by guide pins 5a, 5b formed in the side surface plates 3a, 3b. It is slidably engaged with 33b.

As shown in FIGS. 1 and 2, a small tape cassette guide member 8a, which is rotatably supported by a shaft 7 erected on supporting portions 6a, 6b provided on the upper plate 4.
Reference numeral 8b is biased by a biasing spring 9a, 9b in the clockwise direction in FIG.
It is locked by 0a and 10b.

In FIG. 3, the small tape cassette holding portion 11 of the bottom plate 2 has a concave shape.
The bottom plate 2 is provided with small tape cassette locking claws 12a and 12b as shown in FIG. 4, and these small tape cassette locking claws 12a and 12b are not in contact with the standard tape cassette when the standard tape cassette is inserted. Is. Therefore, assuming that the height difference between the standard tape cassette and the small tape cassette is H and the concave step of the small tape cassette holding portion 11 of the bottom plate 2 is h, when the standard tape cassette 22 is inserted into the cassette holding portion 1. And the small tape cassette 21 has a height difference of H + h when the small tape cassette 21 is inserted, and the small tape cassette guide member 8 guides the small tape cassette 21 to a predetermined position in the height direction.
The configuration of a and 8b is difficult.

FIG. 1 shows the structure of the moving means of the cassette holder 1 of this embodiment. The drive arms 34a, 34b are integrally formed with a shaft 35 rotatably supported by the side wall members 32a, 32b, and are provided in a guide groove 37 with main guide pins on the side plates 3a, 3b of the cassette holder 1. 5b, 5c
Are engaged with each other. On one side of the drive arms 34a and 34b, a gear 38 is integrally formed coaxially with the shaft 35.

The rack 39 includes the side wall member 32a or 32.
It is engaged with two guide pieces 40a, 40b provided in b by guide grooves 41a, 41b so as to be horizontally movable.
Further, the rack 39 has teeth 42 of the rack 39 formed at one end thereof that mesh with the gear 38 of the drive arm 34a, and teeth 43 of the rack 39 formed in a region that does not mesh with the gear 38 integral with the drive arm 34a. Drive gear 4 driven by a drive motor (not shown)
It meshes with 4.

The operation of the cassette mounting apparatus of the present invention constructed as described above will be described below.

When the small tape cassette 21 is inserted into the cassette holding portion 1 through the cassette insertion opening on the front side of the mounting, the state shown in FIGS. 2 and 3 is obtained. At this time, as shown in FIG. 2, the small tape cassette 21 is inserted in the insertion direction (the direction of arrow A in FIG. 2) by the small tape cassette locking claws 12a and 12b provided on the bottom plate 2 of the cassette holder 1. It is locked. Further, as shown in FIG. 3, in the width direction of the small tape cassette 21 (directions of arrows B and C in FIG. 3), the side surfaces of the small tape cassette 21 are guided by the guide surfaces 14 and 14b of the small tape cassette guide members 8a and 8b. Guided, height direction of small tape cassette 21 (direction of arrow D in FIG. 3)
The upper surface of the small tape cassette 21 is guided by the guide surfaces 15a and 15b of the small tape cassette guide members 8a and 8b.

Further, when the detection switch 45 of FIG. 1 detects that the small tape cassette 21 has been inserted into the cassette holding portion 1 and is in the state shown in FIGS. 2 and 3, it is provided in the main body of the magnetic recording / reproducing apparatus. The drive motor (not shown) that starts rotating starts to rotate the drive gear 44, and the rack 39
Moves in the direction of arrow E in FIG. 1, and the drive arms 34a, 34
Rotate b clockwise. Therefore, the drive arm 34
Guide pin 5 engaged with the guide groove 37 provided in a and 34b
The cassette holding unit 1 integrated with b has side wall members 32a and 32b.
After moving from the horizontal movement to the vertical movement along the L-shaped guide groove portions 33a and 33b, the cassette mounting operation is completed and the state shown in FIG. 5 is obtained.

Next, the case where the standard tape cassette 22 is inserted into the apparatus will be described. FIG. 6 is a side view of essential parts showing a state in which the standard tape cassette 22 is being inserted into the cassette holding portion 1. When the standard tape cassette 22 is inserted into the cassette holding portion 1 as shown in FIG. 6, the small tape cassette guide members 8a and 8b are pushed by the front surface portion 23 of the standard tape cassette 22 and are erected on the upper plate 4. It rotates about 7 and moves from the position shown by the dotted line to the position shown by the solid line. Further, when the insertion of the standard tape cassette 22 is completed, the small tape cassette guide members 8a, 8
b is in the state shown in FIG. After this, the cassette holder 1
The moving means performs the same operation as when the small tape cassette is inserted, and the standard tape cassette 22 is mounted on the magnetic recording / reproducing apparatus main body.

[0017]

INDUSTRIAL APPLICABILITY As described above, a cassette mounting apparatus used in a magnetic recording / reproducing apparatus capable of recording / reproducing without using an adapter for both the standard tape cassette and the small tape cassette having a height at least smaller than that of the standard tape cassette. And a cassette holding means capable of detachably holding both the standard tape cassette and the small tape cassette, and a small tape cassette guide member for guiding the small tape cassette to at least a predetermined position in the height direction. Since the cassette holding means is configured to include the cassette guide member, the cassette holding means has a simple, thin, and inexpensive structure, but it does not use a cassette adapter and is small in size as a standard tape cassette. You can record and play on two types of tape cassettes, and It is possible to realize a cassette loading device having the same excellent usability and cassette loading device of a front-loading system used in most conventional cassette loading apparatus.

[Brief description of drawings]

FIG. 1 is a perspective view showing the configuration of a cassette mounting device according to an embodiment of the present invention.

FIG. 2 is a side view of an essential part showing a state in which a small tape cassette is inserted into the cassette mounting device of the embodiment.

FIG. 3 is a front view of essential parts showing a state in which a small tape cassette is inserted into the cassette device according to the embodiment.

FIG. 4 is a perspective view of essential parts showing a small tape cassette holding portion of a bottom plate of the cassette mounting apparatus of the embodiment.

FIG. 5 is a side view of an essential part showing a state in which a small tape cassette is mounted at a recording / reproducing position in the cassette mounting apparatus of the embodiment.

FIG. 6 is a side view of an essential part showing a state in which the standard tape cassette is inserted into the cassette holding means in the cassette mounting device of the embodiment.

FIG. 7 is a side view of essential parts showing a state in which a standard tape cassette is inserted into the cassette mounting device of the embodiment.

[Explanation of symbols]

 1 Cassette Holding Part 2, 4 Bottom Plate 3a, 3b Side Plate 8a, 8b Small Tape Cassette Guide Member 9a, 9b Energizing Spring 21 Small Tape Cassette 22 Standard Tape Cassette 31 Substrate 32a, 32b Side Wall Member 34a, 34b Drive Arm 39 Rack

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Keiji Sakamoto Keiji Sakamoto 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A cassette mounting device for use in a magnetic recording / reproducing apparatus capable of recording / reproducing without using an adapter for both a standard tape cassette and a small tape cassette having a height at least lower than that of the standard tape cassette, A cassette holding means capable of detachably holding both the standard tape cassette and the small tape cassette, and a small tape cassette guide member for guiding the small tape cassette to a predetermined position in the height direction, A cassette mounting device, wherein the cassette holding means includes the cassette guide member.