JPS632184A - Cassette loading device - Google Patents

Abstract

PURPOSE:To load a tape cassette of different size to a prescribed position of a magnetic recording and reproducing device without using any adaptor by providing at least two insertion port cover member blinders. CONSTITUTION:When a small-sized cassette is inserted to a position of a main blinder 38, the main blinder 38 is opened against force of a spring 39 while being pushed by the small-sized cassette. However, a subblinder 30 is not opened because a pawl 22 of a blinder support member 21 and an engagement part 31 of the subblinder 30 are engaged with each other. Thus, the small-sized cassette is loaded correctly at a prescribed position in a holder. Furthermore, when a large-sized cassette is inserted, since a bottom face of the large-sized cassette turns a cassette detection member 24 downward against the force of a spring 25, the engagement between the claw 22 and the engagement part 31 is released and the sub blinder is pushed by the large-sized cassette and opened against the force of a spring 33 and the large-sized cassette is inserted to the holder.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette mounting device used in a magnetic recording/reproducing device such as a cassette video tape recorder.

BACKGROUND OF THE INVENTION In recent years, camera-type video tape recorders (hereinafter referred to as VT
A small portable VTR such as R.

Demand for weight reduction is increasing. Therefore, for portable VTRs, for example, VHS-C cassettes, which are smaller and lighter than VHS cassettes, are used to reduce the size and weight of portable VTRs.

This will be explained below with reference to the drawings. Figure 2 shows VHS-
This is a perspective view of the C case ( ) and the adapter.

In Fig. 2, 1 is the throat of a small cassette, such as a "/MS-C cassette. 2 is the lid of the small cassette 1, and 3 is the lid of the small cassette 1.
is an adapter having the same external shape as, for example, a VHS cassette, 6 is the storage part of the adapter 3, 6 is a lid provided on the storage part of the adapter 3, 7 and 8 are the tapes inside the small cassette 7 and 1. It is a tape drawer post for pulling out. Open the lid 6 of the adapter 3 as shown in the figure, and then open the lid 2 of the small cassette 1.
The small cassette 1 is inserted into the storage section 6 of the adapter 3 by moving it in the direction of the arrow in the open state. At this time, the lid 2 rests on a plate 4 provided near the storage section 6. Adapter 3 lid 6
Close the tape pull-out boss manually or by the motor inside the adapter 3) 7. Move the tape in the direction of the arrows B and 0 to pull out the tape in the small cassette 1 from inside the cassette 1, so that the small cassette 1 appears to be a VHS cassette. Make sure they have the same external shape.

Since the recording and playback method for VTRs using VHS-C cassettes and cassettes is the same as that for VHS, VHS-C cassettes and cassettes can be used with VHS VTRs by using an adapter such as the one mentioned above. Become.

Problems to be Solved by the Invention However, with the above configuration, when used in a VTR for large and small cassettes and cassettes of different sizes, the small cassette is It is necessary to insert the adapter into a dog cage or foot VTR after the adapter has been stored in the adapter and a predetermined operating sound is heard, which is problematic in that it is inconvenient to use. Further, since the small cassette needs to be housed in an adapter similar to the large cassette, the structure of the small cassette is limited. For example, in the case of a VHS-C case, the user must open the lid of the /J'- type case and store it in the adapter, and when the user opens the lid of the small case, the tape may be accidentally scratched. In view of the above-mentioned problems, the present invention provides a method for attaching tape cassettes and lids of different sizes to predetermined positions of a magnetic recording/reproducing device without using an adapter. To provide a cassette/socket mounting device that can be mounted on a cassette/socket.

Means for Solving the Problems In order to solve the above problems, the cassette mounting device of the present invention includes at least two insertion port cover member blinders, a cover opening member that opens the blinders when necessary, and a blinder. It is equipped with a skein gutter detection member provided on the outside and a blinder holding member for keeping the blinder closed.

Operation According to the present invention, with the above-described configuration, if the case 7) is attempted to be inserted at a position other than the predetermined position of the insertion opening, the blinder may not open due to the blinder holding member, so the case foot will not be inserted. When the cassette is to be inserted correctly into the specified position in the insertion slot, the blinders that need to be opened are opened, but the blinders that do not need to be opened are kept closed, so that the cassette cannot be inserted into the specified position in the holder. The cassette is guided to a predetermined position within the magnetic recording/reproducing device.

Embodiments Hereinafter, skeins and mounting devices according to embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a cassette mounting device according to an embodiment of the present invention. In FIG. 1, reference numeral 21 denotes a blinder holding member, which is rotatably supported around a shaft 23.

Reference numeral 22 denotes a retaining claw portion with the blinder, and 24 a cassette detection member, which is molded integrally with the blinder holding member. 2
Reference numeral 6 denotes a tension spring, which always applies an urging force in the direction in which the claw portion 22 engages with the blinder.

A sub-blinder 30 is rotatably supported around a shaft 34. Reference numeral 33 denotes a screw panel, which always applies an urging force in the direction of closing the sub-blinder. Reference numeral 36 denotes a lid opening member, which is rotatably supported around a shaft 36. Reference numeral 37 denotes a striver that completely limits the position of the lid opening member and limits the position of the blinder in the closed state. A main blinder 38 is rotatably supported around a shaft 34. Reference numeral 39 is a screw spring that always applies an urging force to the main blinder 38 in the direction of the closed state. 4o is a rotating head cylinder, 41 is a chassis, and 42 is a sub-holder provided on the top side of the cassette. 43 is a small cassette, and 44 is a large cassette. Reference numeral 49 denotes a connecting member, which is molded integrally with the main blinder 38.

The entire operation of the cassette loading device of this embodiment constructed as described above will be explained below with reference to FIG. Before inserting the cassette, both the main blinder 38 and the sub-blinder 3o are in a closed state.

At this time, the lid opening member 36 is still in contact with the striver 37, the sub-blinder 30 is restricted from opening outward by the lid-opening member 36, and the main blinder 38 is in contact with the connecting member 49 and the sub-blinder 30, so it is also outside. It is restricted from opening.

When inserting a small cassette 'r, when inserting it at a predetermined position of the insertion opening, that is, at the main blinder 38 position in this embodiment, the main blinder 38 is pushed by the small cassette 7) and is pushed by the force of the spring 39. It opens against resistance. However, the sub-blinder 30 cannot be opened because the claw portion 22 of the blinder holding member 21 and the retaining portion 31 of the sub-blinder 30 are engaged. Therefore, the small case and throat can be correctly inserted into a predetermined position in the holder as a full insertion guide on the side of the main blinder of the sub-blinder 30. Further, when a large cassette is inserted, the bottom surface of the large cassette rotates the cassette detection member 24 downward against the spring force 26, so that the engagement between the claw portion 22 and the engaging portion 31 is disengaged. After the sub-blinder can be opened, the large cassette throat acts as a sub-blinder, the sub-blinder is pushed by the large cassette and opened against the force of the spring 33, and the large cassette is inserted into the holder. .

Before ejecting the cassette, the blinder holding member 2 is first rotated counterclockwise against the force of the spring 25 by the power transmission means omitted in FIG. The removed rear lid opening member 36 is rotated clockwise, and the sub-blinder 3o is opened against the force of the spring 33. At the same time, the connecting member 49 is pushed to the sub-blinder 3°, and the main blinder 38 is also opened against the force of the spring 39, after which the large cassette or small cassette is ejected.

As described above, according to this embodiment, a main blinder and a sub-blinder are provided which are rotatably supported around the shaft 34 provided near the insertion opening above the top surface of the cassette, and a biasing force in the closing direction is applied to each of them. The screw springs 33 and 39 are all provided, and a strike bar 37 is provided to hold the blinder in the closed state against the spring force. The shaft 36 is provided integrally with the blinder and is located below the blinder.
A blinder holding member is provided which is rotatably supported around a shaft 23 provided in parallel to A tension spring 26 is provided on the engaging part 31 of the sub-blinder to apply a biasing force of 2 in the direction in which the claw part 22 engages, and before the blinder is opened before cassette ejection, the blinder is moved in the direction to release the claw part engaged with the blinder. By providing a means for rotating the holding member, when inserting a small cassette into the slot, only the main blinder opens and the sub-blinder does not open, so the side of the sub-blinder fully guides the insertion of the small cassette and holds the small cassette in the specified position in the holder. Can be inserted into position. In addition, large skeins,
When inserting the sub-blinder, the blinder holding member is rotated by the cassette and strike detection member, and the sub-blinder can be opened, so that the sub-blinder can be inserted as usual.

Effects of the Invention As described above, according to the present invention, cassettes of different sizes can be inserted into predetermined positions in the cassette loading device without using an adapter, and each cassette TF magnetic It can be installed at a predetermined position within the recording/reproducing device.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a cassette/sevent mounting device according to an embodiment of the present invention, and FIG. 2 is a perspective view of a conventional VH5-c cassette and adapter. 1... VH8-C cassette, 2...
Case/foot lid, 3...adapter, 4...
Plate, 5... Storage section, 6... Adapter lid, 7.8... Tape drawer post, 21...
... Blinder holding member, 22 ... Claw part,
23...Shaft, 24...Cassette detection member, 26...Tension spring, 30...Sub blinder, 31.32...Engagement Section, 33.
39...Torsion spring, 34...Shaft, 3
6...shaft, 36...lid opening member, 37.
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・．
...Chassis, 42...Sub holder,
43...Curvature type cassette, 44...Large cassette,
Futo. Name of agent: Patent attorney Toshio Nakao and 1 other person21
-... Bu'5,1'nda fusumajinkan military materials 24 - Risetsu Chichide rough materials 30 - Sub-blinder. 36-・Head member 43-m-Small force set 44-Large force set

Claims (2)

[Claims] (1) A cassette loading device capable of inserting first and second tape cassettes of different sizes into predetermined positions in a magnetic recording/reproducing device, each rotating separately into a cassette insertion slot. first and second blinders arranged in parallel to allow the cassette to pass; at least one lid opening member that opens the blinder before ejecting the cassette so as not to obstruct passage of the cassette; and a cassette passage location outside the blinder. at least one cassette detection member disposed in the cassette detection member; and at least one movable member that is movable in conjunction with the cassette detection member to maintain the blinder in a closed state unless a cassette is detected and to open the blinder when a cassette is detected. Holder moving means for reciprocating the cassette holder between one blinder holding member, a first position where the cassette can be attached and removed, and a second position where the cassette can be held at a position where recording and reproduction are possible. A cassette loading device comprising: (2) The first and second blinders have their centers of rotation located on the top side of the cassette, and are biased by springs that always apply a biasing force in the closing direction to each blinder, and the first blinder has a closed blinder. The second blinder is provided with a stopper that holds the cassette against the spring force, and the second blinder is provided with a connecting member so as to open in conjunction with the opening of the first blinder. 2. The cassette mounting device according to claim 1, further comprising a claw portion that engages with the blinder, a cassette detection portion, and a spring that always applies a biasing force in the direction of engaging the blinder.