JPH0737302A - Cassette mounter - Google Patents

Abstract

PURPOSE:To conduct lid opening operation surely with a simple constitution. CONSTITUTION:A cassette holder is moved vertically by sections 6, 7 on a lid opening member in the state in which the side plate 8 of the cassette holder is held. Since a lid-opening member body 3 is supported by giving a backlash on a reel chassis (the vertical direction of a paper surface), on the other hand, cassette mounting operation is conducted as the relative positions of a cassette lid 1 and an opening pin 4 are left as they are kept constant. That is, even when cassette mounting operation is performed by lateral pushing, the lid opening pin 4 is shifted while following the deformation in the lateral direction of the cassette holder, thus preventing the disengagement of the engagement of the lid pin 4 and a cassette-lid end face 16, then carrying out positive lid opening operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette mounting device having a function of attaching and detaching a cassette having a lid such as an 8 mm VTR cassette to the main body of the device.

[0002]

2. Description of the Related Art In recent years, VTR cassettes, which have come into widespread use, have a lid for protecting the tape for reasons such as dust protection, which is locked in a closed state except during recording and reproduction. Is configured to. Therefore,
When these cassettes are attached to the recording / reproducing apparatus main body, it is necessary to open this lid by some means so that the tape can be pulled out. Conventionally, the cassette loaded in the recording / reproducing apparatus has been installed in the recording / reproducing apparatus. A cassette mounting device has been used in which the lid is opened by using the operation of landing on the reel chassis.

A conventional cassette mounting device will be described below with reference to the drawings. FIG. 4 shows a lid opening operation of the 8 mm VTR cassette. 2 is the cassette body,
Reference numeral 1 is a cassette lid, 4 is a lid opening pin, 16 is an end surface of the lid (abutment surface of the opening pin), and 18 is a lid lock. After the lid lock 18 is released by a known method (cassette insertion operation), the fixed lid opening pin 4 opens the lid 1 as the cassette descends. FIG. 5 is a side view of a conventional cassette mounting device using this method. In the figure, 9 is a cassette holder,
10 is a reel chassis, 11 is a main chassis, 12 is a drum unit, 13 and 14 are cassette holder links, 15 is an up spring, and 17 is a lid opening member.
As described above, the lid lock 18 is released at the same time when the cassette is inserted into the cassette holder 9, and the cassette is lowered and mounted on the reel chassis 10 on which the reel stand is arranged, as shown in the figure. In this process, the lid 1 is the lid opening pin 4
It is lifted and opened to a predetermined position.

FIG. 6 is a view of the cassette mounting device as seen from the drum unit side. FIGS. 7 and 8 are enlarged views of the lid opening portion. In particular, FIG. It shows the state of (during opening).
As described above, conventionally, the lid opening member 17 fixed on the reel chassis 10 generally pushes up the lid 1 with respect to the vertically moving cassette holder 9 to open the lid.

[0005]

However, when the above-mentioned conventional example is applied to a camcorder in particular, the operation of lowering the cassette holder is generally performed directly by a person. There was a problem.

[0006] In Fig. 6, assuming that the cassette holder is pushed down while applying a force in the lateral direction instead of pushing it downward, it may not be possible to perform the lid opening described above. That is, in FIG. 8, when the mounting operation is performed while the cassette holder and the cassette are laterally pushed in the direction of the arrow, the lid opening pin 4 and the lid end surface 1
6 is removed and the lid closes. As a result, there is a problem that the lid that is still closed may damage the drum unit 12, the tape guide post (not shown), or the like.

In order to prevent this, it is necessary to increase the rigidity of the cassette holder and reel chassis so that they are not deformed even when pushed laterally, or to provide a member having high strength for restricting the lateral movement of the cassette holder. However, there is a disadvantage that it is disadvantageous in terms of weight reduction.

The present invention has been made in order to solve the conventional problems, and an object of the present invention is to provide a cassette mounting device having a simple structure and capable of surely performing a lid opening operation.

[0009]

In order to achieve the above-mentioned object, the cassette mounting apparatus of the present invention comprises:
In a cassette mounting device for mounting a cassette having a lid on a reel chassis equipped with a reel base of a recording / reproducing device, an opening member of the lid is supported on the reel chassis so as to follow a movement of a cassette holder in a cassette longitudinal direction. Claim 2 having a structure.
The lid opening member is made of engineering plastic or other elastic material and is supported on the reel chassis.

[0010]

According to the present invention, since the lid opening member is configured to be movable in association with the lateral movement of the cassette holder, the lid opening operation can be surely performed even when the cassette is mounted while being pushed laterally. Is done.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2 and 3 show an embodiment of the present invention. FIG. 1 is an enlarged view of a lid opening member according to an embodiment of the present invention as seen from a drum unit direction, and FIG. FIG. 3 is a side view showing a cassette mounting operation of the cassette mounting apparatus according to the present invention, as viewed from the drum unit direction.

1 to 3, 3 is a lid opening member main body according to the present invention, 5 is a step screw for attaching the lid opening member main body 3 to the reel chassis 10 with a play, and 6 and 7 are side plates of the cassette holder 9. 8 is a portion sandwiching a predetermined gap, and is formed integrally with the lid opening member main body 3.

The operation of the cassette mounting apparatus according to the embodiment of the present invention will be described with reference to FIGS. Similar to the conventional example, the lid is opened in accordance with the landing operation of the cassette holder. However, the side plate 8 of the cassette holder is sandwiched by 6 on the lid opening member and 7 in FIG. The holder is moved up and down. On the other hand, since the lid opening member main body 3 is supported on the reel chassis with play (vertical direction in the plane of the drawing), the cassette mounting operation can be performed while the relative position between the cassette lid 1 and the opening pin 4 shown in FIG. 1 remains constant. Done.

That is, even when the cassette mounting operation is performed by laterally pushing in the direction of the arrow shown in FIG. 2, the lid opening pin 4 moves in accordance with the lateral deformation of the cassette holder. As described above, the engagement between the lid pin 4 and the cassette lid end surface 16 does not deviate, and a reliable lid opening operation can be performed.

In the above embodiment, the lid opening member 3 is supported on the reel chassis 10 by using the step screws 5, but if the lid opening member main body 3 itself is made of an elastic material such as a molding material, the reel chassis is welded. Even if it is fixed to, the movement of the cassette holder can be made to follow due to elasticity, which enables weight reduction and is advantageous in terms of cost.

[0016]

As described above, according to the present invention, by supporting the lid opening member on the reel chassis so as to follow the lateral movement of the cassette holder, the lid opening operation can be surely performed with a simple structure. There is an effect that a cassette mounting device that enables the above is realized.

[Brief description of drawings]

FIG. 1 is an enlarged view showing a lid opening member according to an embodiment of the present invention.

FIG. 2 is a diagram of a cassette mounting device according to an exemplary embodiment of the present invention as viewed from a drum unit side.

FIG. 3 is a side view of a cassette mounting device according to an embodiment of the present invention.

FIG. 4 is a diagram showing a lid opening operation of an 8 mm VTR cassette.

FIG. 5 is a side view of a conventional cassette mounting device using lid opening means.

FIG. 6 is a view of a conventional cassette mounting device using a lid opening unit as viewed from a drum unit side.

FIG. 7 is an enlarged view showing a conventional lid opening means.

FIG. 8 is an enlarged view showing a conventional lid opening means and showing a state during lid opening.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cassette lid 2 Cassette body 3 Lid opening member body according to the present invention 4 Lid opening pin 5 Step screws 6, 7 Holder side plate sandwiching portion 8 Holder side plate 10 Reel chassis 16 Lid end surface 17 Conventional lid opening member

Claims (2)

[Claims] 1. A cassette mounting apparatus for mounting a cassette having a lid on a reel chassis having a reel stand of a recording / reproducing apparatus, wherein the opening member of the lid follows the movement of a cassette holder in a longitudinal direction of the cassette. A cassette mounting device characterized by being supported by a reel chassis. 2. The cassette mounting device according to claim 1, wherein the opening member of the lid is made of engineering plastic or other elastic material and is supported on the reel chassis.