JPH07161104A - Cassette loading mechanism - Google Patents

Abstract

PURPOSE:To reduce the size and weight of a whole apparatus, improve the appearance and improve the operatability of the loading/unloading of a cassette by a method wherein a cassette holder is moved by turning a cover. CONSTITUTION:A cassette cover 5 whose rotary shaft 5a is attached to a case 6 so as to be able to turn and a cassette holder 2 are retained with each other by cam trenches 5c and 5b and pins 2a. A cassette 1 is moved in the direction of an arrow A to be inserted into the cassette holder 2. If the cassette cover 5 is pushed in the direction of an arrow D after the cassette 1 is inserted, the cassette cover 5 is turned and the cassette holder 2 is made to descend by the cam trenches 5b and 5c and the pins 2a and loaded onto positioning pins 8 and, at that position, locked by a locking mechanism to complete the loading. To the contrary, if the locking mechanism is released, the cassette cover 5 is turned in the direction opposite to the direction of the arrow D by the actuation of an up-spring 7 and the pins 2 are also lifted by the can trenches 5b and 5c and the cassette holder 2 is made to ascend and returned to the initial position where the cassette can be loaded and unloaded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette loading device in, for example, a video movie or audio cassette tape recorder.

[0002]

2. Description of the Related Art In recent years, video movies have been required to be smaller and lighter, and the cassette mounting device, which is a component thereof, has also been required to be smaller and lighter.

A conventional cassette mounting device will be described below. FIG. 4 is a perspective view of a position where the cassette of the conventional cassette mounting device can be attached and detached, and FIG. 5 is a side view of a position where the cassette of the conventional cassette mounting device is mounted on the apparatus body. In FIG. 4, 101 is a cassette, and 102 is
Holds the cassette 101 detachably with a cassette holder. Reference numeral 103 is a first arm, and 104 is a second arm, one end of which is rotatably held and the other end of which is slidably held, and rotatably engaged with each other at substantially the center. . Reference numeral 108 is a shaft for matching the phases of the arms 103 and 104. Reference numeral 105 denotes a stand having a rotation center of the arm 103 and a sliding groove of the arm 104. Reference numeral 106 denotes a spring which is engaged with the arms 103 and 104 and biases the cassette holder 102 from the cassette down position shown in FIG. 5 toward the cassette attaching / detaching position shown in FIG. A cassette cover 107 is fixed to the upper part of the cassette holder 102.

The operation of the conventional cassette mounting apparatus constructed as above will be described below. First, in the state of FIG. 4, the cassette 101 is inserted into the cassette holder 102 from the direction of arrow A and manually moved to the cassette 101 mounting position of FIG. At this position, the cassette 101 is mounted on the positioning pin 109 of the apparatus main body, the cassette holder 102 is locked by the lock mechanism (not shown), and the cassette mounting is completed.

[0005]

However, in the above-described conventional configuration, when the size of the entire product is reduced, for example, in the case of a product such as a video movie, the ratio of the projected area of the cassette mounting device to the total becomes large. Although it is desired to arrange an operation switch for recording, reproducing, stopping, etc. on the upper surface of the cassette cover 107, there is a problem that wiring is difficult because the cassette cover 107 moves almost straight. Further, in order to solve this problem, it is necessary to further configure another mechanism, and there is a problem that the number of parts increases and the product becomes large and heavy when it is manufactured. Further, since the cassette cover 107 is fixed to the upper part of the cassette holder 102, variations in the position and orientation of the cassette holder 102 with respect to the apparatus main body 111 and variations in mounting the cassette cover 107 on the cassette holder 102 are accumulated, and the cassette The position and posture of the cover 107 were greatly varied. Therefore, there is a problem that a step or a gap is formed between the outer case 110 and the cassette cover 107, which makes the appearance unsightly.

The present invention solves the above-mentioned problems of the prior art. It is possible to dispose an operation switch or the like on the projection surface of the cassette mounting device with a simple structure, and to suppress the positional variation of the cassette cover that is the exterior, and It is an object of the present invention to provide a cassette mounting device with improved ease of insertion into a cassette holder.

[0007]

In order to achieve this object, a cassette mounting apparatus according to the present invention is a second apparatus for accommodating a cassette inside and mounting the cassette on the apparatus main body from a first position where the cassette can be attached and detached. A cassette holder that can be moved back and forth to a position, parallel links that are arranged on both left and right sides of the cassette holder, and one end of which is supported by the cassette holder and the other end of which is supported by the main body of the device so that they can rotate freely. It is configured to have a pin attached thereto and a rotatable cassette cover provided with a cam groove for guiding the pin.

[0008]

With this structure, the cassette cover can be rotated to reciprocate from the first position to the second position of the cassette holder, and the operation switch and the like can be arranged on the projection surface of the cassette cover. Positional variations of the cassette cover are reduced, and the cassette can be easily inserted into the cassette holder.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a side view showing a first position where a cassette according to an embodiment of the present invention can be attached and detached, FIG. 2 is a perspective view thereof, and FIG.
It is a side view showing the position of.

In the figure, 1 is a cassette, 2 is a cassette holder for accommodating the cassette 1, 3 and 3a are apparatus main bodies such as video movies, 4a and 4b are cassette holders 2.
Is a parallel link connecting the device main body 3a and the device main body 3a. Further, the cassette 1 is placed on the parallel link 4a at a position spaced from the extension of the bottom of the cassette holder 2 by H.
A call-in portion 4c for guiding to is provided. 5
Is a cassette cover, and its rotating shaft 5a is attached to the exterior 6 and is biased by the up spring 7 in the direction opposite to the arrow D direction. Further, the pin 2a attached to the cassette holder 2 is engaged with the first cam groove 5b and the second cam groove 5c whose shape is an arc centered on the rotating shaft 5a.

The operation of one embodiment of the cassette mounting apparatus configured as described above will be described with reference to the drawings. First, as shown in FIG. 1, the cassette 1 is moved in the direction of arrow A and inserted into the cassette holder 2. At this time, since the call-in portion 4c is located near the extension of the bottom of the cassette 1 (shown by a dotted line), the cassette 1 can be easily inserted into the cassette holder 2 by moving the cassette 1 while contacting the call-in portion 4c. Also, at this time, the arrow A received from the cassette 1 is displayed on the cassette holder 2.
A force in the direction, a force for lowering the cassette holder 2 in the direction of the arrow C, and the like via the attracting portion 4c act. The resultant force of these forces is transmitted to the cassette cover 5, but since the direction of the transmitted force is the direction of arrow B (rotation axis direction), the cassette cover 5 does not rotate and the cassette holder 2 does not descend. When the cassette cover 5 is pushed in the direction of the arrow D after the cassette is inserted, the cassette cover 5 is rotated, the cassette holder 2 is lowered through the cam grooves 5b and 5c and the pin 2a, and the cassette 1 is attached to the positioning pin 8. It becomes the state of. At this position, the cassette cover 5 is locked by a lock mechanism (not shown), and the cassette mounting is completed. At this time, since the rotating shaft 5a of the cassette cover 5 is attached to the outer case 6, there is almost no positional variation of the cassette cover 5 with respect to the outer case 6. Next, when the lock mechanism is released to take out the cassette 1, the cassette cover 5 is rotated in the direction opposite to the arrow D direction by the urging force of the up spring 7. Further, the pins 2a are also pulled up by the cam grooves 5b and 5c, the cassette holder 2 is raised, and the state where the cassette is detachable is returned to the state shown in FIG.

As described above, according to the present embodiment, the cassette 1 can be attached to the apparatus main body 3 by rotating the cassette cover 5. As a result, components such as operation switches can be arranged on the projection surface of the cassette cover 5. Further, it is possible to suppress the positional variation of the cassette cover 5 with respect to the exterior 6, and it is possible to easily insert the cassette into the cassette holder 2.

The parallel link 4a may be provided with a call-in portion for restricting the position of the cassette 1 in the left-right direction, and the call-in portion 4c may be a separate member. Moreover, it is advisable to connect the components such as the operation switches arranged to the apparatus main body 3 using a flexible printed circuit board or the like.

[0014]

As described above, according to the present invention, since the cassette holder is moved by rotating the cassette cover, the operation switch and the like can be easily arranged on the projection surface of the cassette cover, and the "rotating shaft" of the cassette cover can be easily moved. By providing the outer casing with the cassette cover, it is possible to suppress variations in the position of the cassette cover with respect to the outer casing. It will be realized.

[Brief description of drawings]

FIG. 1 is a first example of a cassette according to an exemplary embodiment of the present invention in which a cassette can be attached and detached
Side view showing the position of

FIG. 2 is a perspective view showing the same position.

FIG. 3 is a second diagram of mounting the cassette of the embodiment on the apparatus main body.
Side view showing the position of

FIG. 4 is a perspective view showing a position where a cassette can be attached and detached in a conventional cassette device.

FIG. 5 is a side view showing a position where a cassette in the conventional cassette device is attached to the device main body.

[Explanation of symbols]

 1 Cassette 2 Cassette Holder 3 Device Main Body 4 Parallel Link 5 Cassette Cover 6 Exterior 7 Up Spring 8 Positioning Pin

Claims (4)

[Claims] 1. A cassette holder that can reciprocate from a first position where the cassette can be housed inside and the cassette can be attached and detached to a second position where the cassette is mounted on the apparatus main body, and the cassette holder is arranged on both left and right sides of the cassette holder. And a parallel link, one end of which is rotatably supported on the cassette holder and the other end of which is rotatably supported on the apparatus main body, pins attached to both left and right sides of the cassette holder, and cam grooves for guiding the pins. And a rotatable cassette cover which is rotatable. 2. The cassette mounting device according to claim 1, wherein the rotating shaft of the cassette cover is provided on an exterior member for housing the main body of the device. 3. The shape of the cam groove portion engaging with the pin when the cassette holder moves to the first position is an arc of the rotation axis center of the cassette cover. 1. The cassette mounting device according to 1. 4. The cassette mounting device according to claim 1, wherein a parallel link is provided with a calling-in portion for guiding the cassette to the cassette holder when the cassette is inserted into the cassette holder.