JPH0541002A - Cassette loading device - Google Patents

Abstract

PURPOSE:To provide a thin type device at a low cost usable for two kinds of cassettes keeping superior operability of a front loading system exclusive for a conventional standard cassette by constituting so that a standard cassette is moved to the position not obstructing the inserting operation when it is inserted, and making so as to open a front cap of miniature cassette during the movement. CONSTITUTION:The device is constituted in such a manner that a cap opening lever 10 is provided on the upper surface plate 7 of a cassette holder 1 and a protrusion 41 of the cap opening lever 10 is engaged to an engaging part 40 of ceiling board 29 at the time of movement along a guide groove part 3b then the cap opening lever 10 is rotated counterclockwise to open the front cap 33 of miniature cassette 32 during the movement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette mounting apparatus which can mount a standard tape cassette and a smaller tape cassette in a fixed position without using an adapter.

[0002]

2. Description of the Related Art In recent years, the demand for a VTR with a built-in camera has increased, and a compact and lightweight product is desired.
Most of the products use (registered trademark) cassettes. For example, the one recorded with the C-VHS cassette is VHS.
In the case of reproducing with a magnetic recording / reproducing apparatus for using a cassette, the applicant of the present invention has already disclosed in JP-A-56-20.
The cassette adapter proposed in Japanese Laid-Open Patent Publication No. 2198 or a magnetic recording / reproducing apparatus capable of recording / reproducing without an adapter as proposed in Japanese Patent Laid-Open No. 2-132670 has been used. Furthermore, a device that can use two types of cassettes by a tray system such as a CD player has been commercialized.

[0003]

However, when a cassette adapter is used, the C-VHS cassette must be mounted on the cassette adapter and then the cassette adapter must be mounted on a device dedicated to the VHS cassette.
The operation was complicated. Further, since the proposed magnetic recording / reproducing apparatus has a dedicated cassette holding mechanism corresponding to two types of cassettes, the cassette mounting mechanism is complicated and the height of the apparatus is high. Furthermore, the tray type magnetic recording / reproducing apparatus is relatively thin,
The operability was inferior as compared with the front loading type cassette mounting device of the S cassette dedicated device.

[0004]

In order to solve the above-mentioned problems, the cassette loading apparatus of the present invention comprises a cassette holding means for holding the standard tape cassette and the small tape cassette inserted into the apparatus, and a small tape cassette. The magnetic tape can be pulled out to the outside and the first position to open the front lid of the small tape cassette to open the front lid and the second position to open the front lid of the small tape cassette to a position higher than the lower end of the built-in magnetic tape. It is provided with a small tape cassette lid opening means for reciprocating to a third position for opening to any position and a fourth position that does not hinder the insertion of the standard type tape cassette into the apparatus.

[0005]

With this construction, the lid opening means of the small cassette can be constructed inside the cassette holding means of a size capable of holding the standard cassette, and when the small cassette passes over the tape drawing means, the front lid of the small cassette is built in. Since it is opened to a position higher than the lower end of the magnetic tape, the device can be made thin, and the operability is the same as that of the front loading type cassette loading device used in most of the conventional VHS cassette dedicated devices. It is possible to realize a cassette loading device that can load various types of cassettes without using an adapter.

[0006]

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 side view of essential parts showing the construction of a cassette mounting apparatus according to an embodiment of the present invention. In FIG.
The cassette holder 1 is slidably engaged by the guide pins 3a and 3b formed on the side plate 2a thereof with the guide groove portions 5a and 5b formed on the side plate 2a arranged substantially vertically to the substrate 34. ..

FIG. 3 is a front view of an essential part showing the structure of this embodiment. In FIG. 3, the bottom plate 6 and the top plate 7 are arranged so that the side plate 2a and the side plate 2b are connected to form a box-shaped cassette holder 1.

FIG. 4 is a perspective view showing the structure of a lid opening mechanism for a small cassette. As shown in FIG. 4, the lid opening lever 1
0 is rotatably supported by a shaft 9 provided on a support portion 8 provided on the upper plate 7. The urging spring 11 rotatably attached to the support boss portion 46 has one end engaged with the protrusion 27 of the lid opening lever 10 and the other end provided with a locking portion 28 provided on the support portion 8 of the upper plate 7. And engages the lid opening lever 10 in the clockwise direction in FIG. As shown in FIG. 1, the lid opening lever 10 is engaged by a pin 10a with an engaging portion 13a of a rotating lever 13 rotatably supported by a shaft 12 erected on the upper plate 7. Therefore, although the rotating lever 13 is also urged clockwise in FIG. 1, the protrusion 13b is locked on the upper surface plate 7, and the rotating lever 13 and the lid opening lever 10 are in the state shown in FIG. is there.

As shown in FIG. 3, the lid opening lever 13 is
Protrusion 10b for opening the front lid 33 of the small cassette 32
And the small cassette 3 while the cassette holder 1 is moving horizontally.
The engaging portion 40 provided on the top plate 29 for opening the second front lid 33.
4 and is pushed by the engaging portion 40 of the top plate 29 when the cassette holder 1 moves horizontally to the position shown in the side view of the main part of FIG. The front cover 33 of the small cassette 32 is configured to be opened to a predetermined height by rotating clockwise. At this time, the protrusion 10b of the lid opening lever 10 is provided with the opening 4 for opening the lid shown in the perspective view of the bottom side of the small cassette in FIG.
5 enters the inside of the small cassette 32, and the front lid 33 is rotated and opened.

FIG. 2 is a perspective view showing the welfare of the drive mechanism of this embodiment. The drive arms 36 and 37 are integrally formed with a shaft 39 that is rotatably supported by the side wall members 4a and 4b, and the guide arms 24 of the cassette holder 1 are provided in a guide groove 24 that includes an escape portion 25 provided at the tip. The main guide pins 3b and 3c on the side plate 4a are engaged with each other. On one side of the drive arm 36 or 37, the gear 15 is integrally formed coaxially with the shaft 39. The rack 16 is engaged with two guide pieces 17a, 17b provided on the side wall member 4a or 4b by guide grooves 16a, 16b so as to be horizontally movable.
Further, the rack 16 has rack teeth 18 formed at one end thereof.
Drive motor (not shown) with rack teeth 35 formed in a region that meshes with the gear 15 of the drive arm 36 and does not mesh with the gear 15 integrated with the drive arm 36.
It meshes with a drive gear 20 that is rotationally driven by.

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

When the detection switch 19 detects that the small cassette 32 has been inserted into the cassette holder 1 through the insertion opening on the front of the apparatus and the state shown in FIGS. 1 and 3 has been established, the magnetic recording / reproducing apparatus is equipped with the cassette 32. The drive motor (not shown) starts to rotate, the output gear 20 rotates, and the rack 1
6 moves to the right in FIG. 2 and causes the drive arms 36 and 37 to rotate clockwise. Therefore, the cassette holder 1 integrated with the guide pin 3b engaged with the guide groove 24 provided in the drive arms 36 and 37 horizontally moves along the L-shaped guide groove portions 5b and 5c of the side wall members 4a and 4b. The state shown in FIG. 5 is obtained. At this time, the protruding portion 41 of the lid opening lever 10 is attached to the top plate 2.
9 is brought into contact with the engaging portion 40 and is rotated counterclockwise in FIG.
The front lid 33 of the small cassette 32 is rotated to a position at least higher than the lower end of the built-in magnetic tape 43 until the lower end of the front lid 33 is formed.

FIG. 8 is a plan view of the essential parts in this state. Figure 8
As shown in FIG. 5, a lid opening lever 10 and a pull-out member 42a for pulling out the magnetic tape 43 from the small cassette 32,
The positions 42b and 42c do not interfere with each other in plan view.

FIG. 7 is a bottom perspective view showing a state in which the front lid 33 of the small cassette 32 is opened. Small cassette 32
In order to pull out the magnetic tape 43 from the magnetic tape recording / reproducing means (not shown), the magnetic tape pulling member is provided in at least one of the openings 44a, 44b, 44c of the small cassette 32. I need to put it in. For that purpose, it is necessary that the small cassette 32 is moved to a position above the pull-out members 42a, 42b, 42c and is moved to the position shown in the plan view of the main part of FIG.

FIG. 10 shows the height of the small cassette 32 that allows the small cassette 32 to move horizontally until the drawer members 42a, 42b, 42c are positioned below the openings 44a, 44b, 44c for drawing out the magnetic tape. It is a principal part side view which compared the case where the front lid 33 was closed, and the case where it was opened. When the front lid 33 is opened, if the lower end of the magnetic tape 43 is at a position higher than the upper end of the drawer member 42a, the small cassette 32 can be moved to the top of the drawer member 42a, without opening the front lid 33. It can move horizontally at a position lower than the case of moving by a distance h between the lower end of the front lid 33 in the closed state and the lower end of the magnetic tape 43.

Further from FIG. 5, the drive motor (not shown) rotates, the output gear 20 rotates, the rack 16 moves to the right in FIG. 2, and the drive arms 36 and 37 rotate clockwise. As a result, the movement from the horizontal movement to the vertical movement is performed, the cassette mounting operation is completed, and the state shown in the side view of the main part of FIG. 11 is obtained. At this time, the rotation lever 13
As shown in FIG. 11, since the protrusion 14 engages with the locking portion 30 formed on the top plate 29, it rotates in the counterclockwise direction in FIG. 11. Further, the rotating lever 13 pushes up the pin 10a formed on the lid opening lever 10 by the engaging portion 13a to rotate the lid opening lever 10 counterclockwise. When the lid opening lever 10 rotates counterclockwise, the lid opening projection 10b formed on the lid opening lever 10 also rotates the front lid 33 of the small cassette 32 counterclockwise.
It will be in the open state as shown in 1.

In this state, as shown in FIG. 12, the drive arms 36 and 37 are provided with guide pins 3b and 3d integrally formed on the side plates 2a and 2b of the cassette holder 1 in the escape portion 25 of the guide groove 24. It is rotating until it gets in. Therefore, the guide pins 3b and 3d are attached to the drive arm 3
6 and 37 are biased by springs by biasing members 25 and are mounted on a magnetic tape drive mechanism (not shown) formed on the substrate 34.

Next, the case where the standard cassette 31 is inserted into the apparatus will be described. FIG. 13 is a side view of essential parts showing a state in which the standard cassette 31 is inserted into the cassette holder 1. In FIG. 13, the lid opening lever 10 is pushed up by the standard cassette 31 and rotated counterclockwise against the biasing spring 11 to ride on the upper surface of the standard cassette 31. At this time, the detection switch 19 shown in FIG. 2 detects that the standard cassette 31 is mounted on the cassette holder 1, and the same operation as when the small cassette is mounted is performed, so that the standard cassette 31 is placed on the substrate 34. It is mounted on the magnetic tape drive mechanism (not shown) configured as described above.
While the standard cassette is being used, as shown in the front view of the main part of FIG. 14, the lid opening lever 10 is mounted and removed while the lid opening lever 10 remains on the upper surface of the standard cassette 31.

[0020]

As described above, according to the present invention, the cassette holding means for holding the standard type tape cassette and the small tape cassette inserted in the apparatus and the small tape cassette for opening the front lid of the small tape cassette are inserted. 1st position for waiting, 2nd position for opening the front lid of the small tape cassette to a position higher than the lower end of the built-in magnetic tape, 3rd position for opening to a position where the magnetic tape can be pulled out, and standard tape cassette device Since the tape holding device is provided with a small tape cassette lid opening device that reciprocates to a fourth position that does not hinder the insertion of the tape, the structure is simple due to only one cassette holding mechanism, and the tape drawing device is inexpensive. When passing over the top, the front lid of the small cassette is opened to a position higher than the lower end of the built-in magnetic tape, so the device is thin. In addition, it is possible to record / reproduce to / from two types of cassettes, large and small, without using a cassette adapter, and has the same operability as the front loading type cassette mounting device used in most conventional VHS cassette dedicated devices. It is possible to realize a cassette mounting device having the above.

[Brief description of drawings]

FIG. 1 is a waist side view showing a state in which a small cassette is mounted on a cassette mounting apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a cassette standby state of the embodiment.

FIG. 3 is a front view of essential parts showing a state in which a small cassette is mounted on the cassette mounting device of the embodiment.

FIG. 4 is a perspective view showing a structure of a lid opening mechanism of the small cassette of the embodiment.

FIG. 5 is a side view of an essential part showing a state in which the front lid is opened while the small cassette is being moved by the cassette mounting apparatus of the embodiment.

FIG. 6 is a bottom perspective view of the small cassette used in the embodiment with the front lid closed.

FIG. 7 is a bottom perspective view of the small cassette used in the embodiment with the front lid open.

FIG. 8 is a plan view of a principal part showing a state just before the small cassette moves to above the magnetic tape pulling member in the cassette mounting apparatus of the embodiment.

FIG. 9 is a plan view of essential parts showing a state in which the small cassette has moved to a position above the pulling-out member of the magnetic tape in the cassette mounting apparatus of the embodiment.

FIG. 10 is a side view of an essential part showing the effect of the cassette mounting device of the embodiment.

FIG. 11 is a side view of an essential part showing a state in which a small cassette is mounted at a recording / reproducing position in the embodiment.

FIG. 12 is a side view of the essential parts showing the state of the drive mechanism when the standard and small cassettes are mounted at the recording / reproducing position in the embodiment.

FIG. 13 is a side view of essential parts showing a state in which a standard cassette is mounted on the cassette mounting device of the embodiment.

FIG. 14 is a main part front view showing a state in which a standard cassette is mounted in the cassette mounting device of the embodiment.

[Explanation of symbols]

 1 Cassette Holder 2a Side Plate 4a Side Wall Member 7 Top Plate 10 Lid Opening Lever 13 Rotating Lever 16 Rack 19 Detection Switch 29 Top Plate 31 Standard Cassette 32 Small Cassette 34 Board 36 Drive Arm 40 Engagement Part 41 Projection 42a Drawer Member

Front page continuation (72) Inventor Keiji Sakamoto 1006 Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A cassette mounting device for mounting a standard tape cassette and a small tape cassette smaller than the standard tape cassette in a fixed position, wherein the standard tape cassette and the small tape cassette are inserted into the device. A cassette holding means for holding the small tape cassette, a first position for waiting when the small tape cassette is inserted to open the front lid of the small tape cassette, and the lower end of the magnetic tape having the front lid of the small tape cassette built therein. A small tape cassette lid opening reciprocating to a second position for opening the magnetic tape to a higher position, a third position for opening the magnetic tape to a position where the magnetic tape can be pulled out, and a fourth position that does not hinder the insertion of the standard tape cassette into the apparatus. And a cassette mounting device.