JPS5873071A - Cassette adaptor - Google Patents

Abstract

PURPOSE:To eliminate vibration of a tape drawing pin and to stabilize high speed running, by fixing a drawing means of a magnetic tape, in a device capable of applying a small-sized cassette to a large size magnetic tape device. CONSTITUTION:When an operation knob 57 is slied right with an operation arm 53 kept opne, a tape 4 in a smal-sized cassette 2 is drawn on its way with tape drawing pins 15 and 27. In turning the arm 53 counterclockwise so as to close an operation opening 58, a slide lever 39 is slided toward the arrow 60 and a fixed lever 31 is slided toward the arrow 61. Thus, a pressing part 31a depresses the pin 15 with a tensile spring 32 and is clipped with a positioning block 62 fixed to a case 1 of a large size cassette adaptor and a pressing part 31a, allowing to fix the position of the pin 15. This is applied to the same as the other pin 27.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to devices that record or reproduce signals using magnetic tape, such as audio tape recorders or video tape recorders (hereinafter collectively referred to as magnetic tape devices). This article relates to a cassette adapter that can be used effectively, and in particular, it can be applied to small cassettes that have a different magnetic tape running path than the large cassettes used in large magnetic tape devices. This is what I did.

Conventionally, as a cassette adapter configured as described above, a small cassette is housed in a case of approximately the same size as a large cassette, and the magnetic tape housed in the small cassette is placed in the running path of the magnetic tape of the large cassette. Some devices are used by being pulled out to the corresponding position and then attached to a large magnetic tape device.

However, when pulling out the magnetic tape, you simply need to use the lever.
If you just pull it out with a guide pin for running the magnetic tape,
When running magnetic tape (especially fast forwarding).

When driving at high speeds (such as when rewinding), levers etc. vibrate,
Not only is it impossible to accurately guide the running of the magnetic tape, but the magnetic tape is also damaged.

The present invention solves the above-mentioned conventional problems by fixing the magnetic tape pull-out means and provides a cassette adapter with good operability.

Hereinafter, the invention will be explained based on illustrated embodiments.

FIG. 1 is a plan view showing the main structure of an embodiment of the present invention.
Case 1 of the main body of the cassette adapter having the shape and shape
Inside is a small cassette 2 that is applicable to a small magnetic tape device.
Shown is loaded. The small cassette 2 is smaller than a large cassette that can be applied to a large magnetic tape device, and a magnetic tape 4 similar to the magnetic tape of the large cassette described above can be drawn out in a loop shape from the front part. An opening A is formed.

The magnetic tape 4 is transferred from the supply reel 3 to the tape guide sa.
, sb, and then wound onto a take-up reel 6. This small cassette 2 is positioned by positioning members 7a and 7b provided on the case 1.

Further, the lower 7 langes of the take-up reel 6 of the small cassette 2 have a gear 8, which is connected to the take-up reel stand (not shown) of the large magnetic tape device via an idler gear 9°1o.
It meshes with a gear 12 provided on a winding drive wheel 11 coupled to the winding drive wheel 11.

A first tape pull-out pin 16 constituting a tape pull-out means is implanted in the distal end of the first tape pull-out arm 14 which is rotatably supported by a support shaft 13. When the tape pull-out arm 14 rotates counterclockwise, the first tape pull-out pin 1
6 allows the magnetic tape 4 to be drawn out of the small cassette 2 in a loop through the opening A.

Furthermore, a drive pin 16 is implanted at the other end of the first tape pull-out arm 14, and this drive pin 16 is connected to the support shaft 1.
It engages with an elongated hole 19 provided at one end of an intermediate arm 18 rotatably supported by 7.

A driving pin 2o is implanted at the other end of the intermediate arm 18, and the driving pin 20 is connected to a first pin provided on the operating lever 21.
It engages with the cam groove 22 of. Further, the operating lever 21 is provided with a second cam groove 23.
3 is engaged with a drive pin 24, and the drive pin 24
is implanted at one end of a second tape pull-out arm 26 that is rotatably supported by a support shaft 26. A second tape pull-out pin 27 constituting tape pull-out means is implanted at the other end of the second tape pull-out arm 26, and when the second tape pull-out arm 26 rotates clockwise, A second tape pull-out pin 27 can pull the magnetic tape 4 out of the small cassette 2.

The operating lever 21 has a guide groove 2 that engages with a guide pin 28.
9 and end surfaces 29a and 29b of the operating lever 21, and are slidably guided from side to side by guide members (not shown).

Figure 2 shows the first and second tape pull-out pins '1.
5.27 is a plan view for explaining the configuration of a fixing means for fixing the tape after being pulled out, and is shown separately from FIG. 1 to make the drawing easier to see. In FIG. 2, a first fixed lever 31 rotatably and slidably supported by a support shaft 30 is attached to a first tape pull-out pin 1.
The stopper 3 is provided so as to be able to suppress the stopper 3, and is biased to rotate counterclockwise by a tension spring 32.
The position is regulated by 3. First fixed lever 31
A drive pin 34 is implanted at one end, and the drive pin 3
4 engages with an elongated portion 37 of an intermediate arm 36 rotatably supported by a support shaft 36. Furthermore, a cam 38 is provided on the intermediate arm 36, and the slide lever 3
It engages with a pin 40 implanted in 9. A pin 41 is also implanted at the other end of the slide lever 39.
The pin 41 engages with an elongated portion 44 provided at one end of an intermediate arm 43 rotatably supported by a support shaft 42 . A second fixing lever 46 is rotatably provided by a support shaft 46 implanted at the other end of the intermediate arm 43 . The second fixing lever 46 is connected to the second tape pull-out pin 2
7 is rotated clockwise by a tension spring 47 so as to be able to suppress it, and its position is regulated by a stopper 48. The slide lever 39 is guided by an elongated hole 60.51 that engages with a guide pin 28.49, and a drive pin is implanted in an operating arm 63 rotatably supported by a support shaft 62. 64. In fact, as shown in FIG. 3, the front opening B of the case 1 through which the magnetic tape can be exposed is provided with a front cover 66 that can be opened and closed by rotating nine times.

Further, the rear side plate 66 on the surface facing the front lid 66 has an operation opening 68 for exposing an operation knob 67 provided on the operation lever 21, and is provided so as to be closed by the operation arm 63. ing.

Next, the operation and operation of this embodiment will be explained. !
! First, as shown in FIG. 1, a small cassette 2 is loaded into a case 1. When the position of the small cassette 2 is determined by the positioning members 7a and 7b.

Next, as shown in FIG. 3, with the operating arm 63 open, slide the operating knob 67 provided on the operating lever 21 in the direction of the arrow 69 to open the first cam groove provided on the operating lever 21. The drive bin 20 engaged with 22 is driven.

Accordingly, the first tape pull-out arm 14 rotates via the intermediate arm 18, and the first tape pull-out pin 16 pulls out the magnetic tape 4 to the position shown in FIG. Similarly, the drive pin 24 engaged with the second cam groove 23 is driven, and accordingly the second tape pull-out arm 26 rotates, and the second tape pull-out pin 27 pulls the magnetic tape 4 as shown in FIG. Pull it out to the position shown in Figure 6.

Next, by rotating the operating arm 63 counterclockwise in the direction d1 from the state shown in FIG. 6, the slide lever 39 slides in the direction of the arrow 6o. According to this movement, the intermediate arm 3
6, the first fixed lever (-31) slides in the direction of arrow 61, and as shown in FIG.
The suppression part 31a provided at the tip of the case 1 presses the first tape pull-out pin 16 with the tension spring 32, and the case 1
The first tape pull-out pin 15 is positioned and fixed by being held between the positioning block 62 and the pressing portion 31a provided in the first tape pull-out pin 15. Similarly, the second fixing lever (-46) slides in the direction of the arrow 63 via the intermediate arm i43, and as shown in FIG. Tension spring 47
The second tape pull-out pin 27 is pressed by the positioning block 64 provided in the case 1 and the pressing part 46a.
and U, the second tape pull-out pin 2
7 positioning and fixing is performed.

Finally, the operating arm 53 can be locked by sliding the sliding locking member 66.

As is clear from the above description, the present invention provides a tape pull-out means (the tape pull-out pin 1) that moves from a non-operating position to an operating position in order to pull out a magnetic tape.
5.27), a first operating member (corresponding to the operating lever 21 and operating knob 67) for driving the tape pulling means, and a case so that the first operating member can be operated. an operating opening (corresponding to 68 above) provided in the tape drawer, a fixing means (corresponding to the fixing lever 31.46) for fixing the tape pulling means in the operating position, and a tape pull-out means (corresponding to the fixing lever 31.46), which is moved from the non-operating position to the operating position by the lever. and a second operating member (corresponding to the operating arm 63) for driving the fixing means to the fixing position and closing the operating opening, so that the tape cannot be pulled out when the magnetic tape is running at high speed. The magnetic tape can be run stably without the pins etc. vibrating 11, and damage to the magnetic tape can be prevented. Further, by closing the operation opening, the operation knob for pulling out the tape is not exposed, so that erroneous operations such as moving the operation knob after fixing the tape pull-out pin can be prevented.

Furthermore, since it can be used as both the closing member for the operation opening and the operation member for fixing the tape pull-out pin, it has many excellent features, such as fewer parts and better operability. .

[Brief explanation of drawings]

FIG. 1 is a plan view showing the main structure of a tape bending part in an embodiment of the present invention, FIG. 2 is a plan view showing the main structure of a fixing means in the same embodiment, and FIG. 3 is a plan view of the same embodiment. FIGS. 4 and 6 are a perspective view of the same embodiment, and FIG. 6 is a plan view of the main part of the same embodiment in a state where the magnetic tape is pulled out. FIG. 1... Case, 2... Small cassette,
3... Supply reel 11U5B-73071 (4) Supply reel, 4... Magnetic tape, 6... Take-up reel, 14... First tape Drawer arm, 16...first tape drawer pin,
21...Operation lever, 26...Second tape pull-out arm, 27...Second tape pull-out pin, 31...First fixing lever , 4
6... Second fixed lever, 63... Operation arm, 67... Operation knob, 68...
Operation opening, A... Opening.

Claims (1)

[Claims] It is smaller than a first cassette having a predetermined size and a predetermined shape that contains a magnetic tape, and can be wound with a magnetic tape similar to the magnetic tape of the first cassette and its magnetic tape. A second cassette having a tape reel and an opening through which the magnetic tape can be pulled out in a loop shape can be removably loaded inside the cassette, and is substantially the same as the first cassette. With a cassette storage case of the same or almost the same size and the second cassette loaded in the cassette storage case, the magnetic tape in the second cassette is connected to the magnetic tape running path of the first cassette. a tape pull-out means that moves from a non-operating position to an operating position as if pulled out to a position corresponding to the tape pull-out means; a first operation member for driving the tape pull-out means; an operating opening provided in the cassette storage case; a fixing means for fixing the tape pulling means in the operating position; A cassette adapter comprising a second operating member for closing the operating opening.